Like many summer residents, the do-it-yourself concrete mixer was made by our user belor44 not for fun. In the summer, the foundation for the house was to be poured. The nearest mortar-concrete unit, where it would be possible to purchase a high-quality building mixture, was located 80 km from the dacha. The cost of concrete with delivery was impressive. Another option - to hire "Tajikstroy" - also quickly disappeared: these workers have constant problems with the tool.
How to make a pear;
How to make a bed;
How to make a reducer.
How to properly load components for a raster.
How to choose the volume of a pear
40 cubic meters of concrete is a considerable amount for manual labor alone. And why, when a simple device will cope with this task! So the idea gradually matured to knead the concrete himself, with the help of a concrete mixer. But even here everything was not simple: the devices presented in retail outlets left much to be desired.
The conclusion suggested itself: a small do-it-yourself home-made concrete mixer. In the search engines, the forum member found everything he needed to know: design, dimensions, drawings, calculations, etc. For a simple home-made concrete mixer, a volume of 0.25 cubic meters seemed optimal. Belor44 found all the necessary “rough” used material at metal collection points and car dismantling points.
On FORUMHOUSE you will find that will help you decide on the volume.
How to make a pear
Sledgehammer - in right hand, the left one holds parts cut from 2.5 mm thick metal. You can start! The forum member brought all the elements of the future pear to desired shape on the channel.
The bottom of the device was cut from sheet metal 5 mm thick.
A homemade concrete mixer pear can be made from a metal barrel!
One of the difficult operations for belor44 was to combine all the details of the pear. First, he tied the middle and bottom. This was again helped by the best assistants of the Russian master - a log and a sledgehammer.
The sledgehammer had to work hard, but carefully. It didn’t work out like this for a forum member: the bottom flew out from the impact. After several unsuccessful attempts, he made a kind of limiter on the middle part of the pear: he cut the edges slightly, by 5 mm, and bent inward. He inserted the upper part into the middle and "picked out" with the help of a nail puller and a log.
The experience that came after was that everything should not have been done so tightly. It was necessary to “weaken” the top, limiting its exit in the same way as he did with the bottom.
What mistakes can be made
Before installing the upper part (until the weight of the structure became unbearable), belor44 arranged a pear seat. Forumchanin believes that this is his main miscalculation. First of all, he broke the structure. The second mistake - he cooked steel with cast iron. The master really wanted to get the most disassembled mechanism! After all, considerable loads were assumed, and, therefore, repairs. However, in this case, the forum member believes, instead of a brake disc, it made sense to cut a reliable circle of steel, this would improve the quality of the product.
How to make a bed
Finally, belor44 took up the frame, on which everything already assembled will be held. The forum member did not have the opportunity to acquire free bearings, so he decided to make the tipping mechanism simple: a pipe inside a pipe. A do-it-yourself concrete mixer was not made for sale, so this option is a pretty good solution.
The main thing when designing a frame is to choose the center of gravity. Otherwise, the device will tip over. Unloading of concrete should take place without much effort. If during operation you will transport the concrete mixer around the site, put the frame on wheels!
The base of the forum member turned out to be powerful and heavy: not very good, but belor44 decided that it was better than devices of dubious manufacturers that wobble during operation. And the assistant, in case of a rearrangement, the master had more than a good one - a crane.
How to make a reducer
For the rotation mechanism, belor44 bought a flywheel and hub from Volga and a bendix from Moskvich. He did not remove the crown from the flywheel axis, although he added weight to an already not so light device. I decided that centering it and attaching it to a pear is a troublesome business, and the forum member planned a removable pear - so that later it could be changed to a sieve.
For tipping, belor44 welded a mechanism to the frame - a flywheel and a gear from classic vase. He cut off the gear from the bendix, then welded it to the roller. Two bearings were used, they fit tightly into the selected pipe. I also made a hex wheel.
I had to weld additional amplifiers. The forum member scalded the neck with a six and set about making a “gearbox”. Again, acted old scheme: shaft, pipe, two bearings. On the shaft and the engine, he calculated the pulleys in such a way that there were no more than 25 revolutions per minute.
The forum member used the engine at 380 V, 0.6 kW - it is small, but it has been proven, since the times of the Union.
Experience in construction
Ready, the first tests were successful. Having studied the experience of members of the forum, belor44 found the most acceptable order for loading components for mixing concrete:
- Loaded all the rubble;
- Poured some water;
- Fall asleep part of the cement;
- Filled up with water again
- Another piece of cement;
- A little sand.
For the blind area of the garage, the owner made the solution stronger by mixing cement, sand, crushed stone and water in a ratio of 1: 2: 3: 0.7 -0.6 and adding C-3 plasticizer.
To make it more convenient, when loading, the forum member put the pear vertically. Due to this, two buckets of 12 liters of cement, 4 of sand, 6 of crushed stone, 2 (0.7 liters each) of water were freely placed and mixed in the containers.
See other topics of our users about:
vibrating tables, vibrating plates, mixers, concrete mixers with photos, drawings and reviews.
According to the materials of the participant of the forum "House and Dacha"
When large-scale construction work is planned, not the last question to be decided is where to get a mortar mixer - if you mix the mortar manually, then the lost time does not compensate for the savings from not buying a concrete mixer. Some skill in welding and locksmithing and instructions on how to make a concrete mixer with your own hands will help reduce costs.
Basic principles of operation of mortar mixers
According to the principle of operation, a do-it-yourself concrete mixer is no different from industrial analogues - the differences will be only in the materials used and sizes. In addition, it will be easier to repair a concrete mixer with your own hands, since you know the mechanism you have made yourself inside and out.
Based on the scope of the planned work and the available components, finished device can mix concrete in a concrete mixer by force, gravitational or combined. The latter is used most often due to the ease of manufacture of the device and the high quality of its work.
Forced mixing of the solution
It works according to this principle construction mixer or a drill with a special nozzle - a whisk is lowered into the solution and, rotating, mixes its components. But such tools are more suitable for gypsum plasters- sand and cement, especially with the addition of crushed stone, have a much greater weight, so at best you simply won’t get a high-quality mixture, and at worst - when making a mortar, you can burn the drill motor or its gearbox yourself.
For the preparation of concrete, a slightly modified design is used - a shaft passes through the center of the tank, on which blades are mounted, mixing the components of the mixture. Also good results show frame mixers that break up clods of mortar, turning it into a homogeneous mixture. Some builders are convinced that only such an arbolite mixer can prepare an arbolite solution with high quality.
Advantages and disadvantages
This method shows excellent results in production, but before using it at home, you should weigh the pros and cons of the design.
There is only one advantage - such a concrete mixer will produce the most homogeneous solution in the shortest time.
The disadvantages of such a device are much more:
- The complexity of the design. It is necessary to ensure the tightness of the place where the shaft passes through the mixing container. This determines how often the bearing needs to be replaced, which is usually installed in this place. It is also necessary to reduce the "dead zones" that are located near the walls of the tank - the blades or frame must rotate freely, but at the same time pass close enough to the surface so as not to leave unmixed parts of the solution there.
- Need quality parts. The concrete solution is quite heavy in itself, and the addition of crushed stone or other inclusions to it requires additional capacities from the concrete mixer. As a result, in order to get a good concrete mixer, you need to remember or master the basics of strength of materials.
- The design is not designed for the preparation of a solution that includes medium and large fractions of crushed stone or expanded clay - they will simply get stuck between the blades and walls.
- Large power consumption. Again, everything is tied to the density and weight of the concrete in which the blades will rotate. For the same reason, a homemade forced-action concrete mixer must necessarily be with an engine - if you try to rotate the shaft manually, you can use shovels with the same success.
If the quality of the solution and the speed of its mixing are more important, then forced concrete mixer DIY can be done according to the following schemes.
Details and device
The design consists of the following components:
- Carrying frame. Its execution is individual in each case.
- Drum for a batch, with smooth internal walls.
- working shaft. Frames or blades are attached to it, mixing the solution.
- Electric motor.
- Reduction gear.
- Coupling. Transfers force from the gearbox to the shaft. It can act as a fuse in case of jamming.
- Luke for rashing the finished solution.
- Lever for opening the hatch (or turning the drum).
Do-it-yourself forced-action concrete mixers require special attention to the way in which the prepared mortar will be unloaded. This is a hatch in the bottom of the mixing container or a device for completely turning it over so that the finished mixture is poured out through the loading compartment. Which of the methods is more suitable, it is advisable to decide in advance.
Visually forced concrete mixer in the video:
Gravity mixing
When using this method, the container itself is spinning into which the components of the solution are poured. Mixing occurs due to the constant pouring of sand and cement from top to bottom. The most difficult thing in this design is to ensure that the lid closes tightly so that water does not seep through it.
The most important advantage of the design is its simplicity. Such a do-it-yourself mortar mixer can be made from an ordinary can, even an unnecessary and leaky one will do. Do not drink water from it, so the hole can be closed by any means, and the neck rarely deteriorates and still provides the necessary tightness.
Such devices can also be used during construction in places where there is no electricity - such a home-made concrete mixer made by oneself does not have to be equipped with an electric drive, although its presence will greatly simplify the work.
Working on the same principle, but more common is a homemade concrete mixer from a barrel. It is easier for her to find a container, it is more capacious and mixing the solution allows you to perform more thoroughly. As practice has shown, the solution is better mixed in a barrel fixed in opposite corners.
Details and device
The following components are used:
- Iron barrel of suitable size. Some craftsmen adapt plastic containers for these purposes.
- Frame. There are no restrictions - full scope for imagination. The main thing is that it is convenient to pour out your finished solution.
- A shaft that supports a container that can support the weight of a barrel of cement.
- Bearings.
- Pen. The longer it is, the easier it is to rotate the shaft.
- Handle.
- Cover for draining the finished solution.
- Clips that hold the lid to the neck.
- Seals.
- Hinges for opening the lid.
How a do-it-yourself concrete mixer from a barrel works is clearly shown in the following video:
Combined concrete mixers
The most common devices - the solution is mixed due to gravitational influence, plus breaking up lumps with blades or pins welded to the body of the barrel. Suitable for making arbolite with your own hands. They require more time to prepare the solution than forced mixers, but have an extensive list of advantages:
- The design is as simple as possible, reliable and unpretentious in operation.
- Less force is generated on the shaft that rotates the barrel, which allows the use of not as powerful electric motors as for forced mixing. As a result - significantly less wear on components.
- It is not required to seal any joints - the solution is mixed inside the barrel, and all the nodes of the mechanism are outside.
- It is possible to mix solutions with any size fractions of crushed stone, expanded clay and other fillers.
The simplest combined manual concrete mixer handmade from iron barrel- it's the same manual concrete mixer, but with blades or combs welded on the inside. If necessary, an electric motor can be connected to it.
Self-manufacturing
A factory-made or do-it-yourself concrete mixer consists of three main components: a bucket in which the mortar is mixed, a frame for attaching the components and a drive - manual or electric (in some cases motors from a moped or scooter are used).
In the video, a home-made tub for combined mixing of the solution is installed on a T-16 tractor:
Solution bucket
First, you need to consider its size, given that it will be loaded by 30-40%. No more, as the solution will splash out and mix poorly.
Secondly, attention should be paid to the shape - it should be pear-shaped. From above, so that water and mortar do not splash out, from below - so that concrete particles do not clog into the corners between the wall and the bottom.
This tub is almost ready plastic barrel the right sizes- besides the fact that it fits the shape, an additional plus will be her weight.
Alternatively, a concrete mixer can be made from washing machine- if an old Soviet round “washer” is lying around in the attic, then a laundry tank is removed from it, which is specially designed for liquid to spin inside it. The bottom is strengthened, the top is narrowed and the tank is ready.
If there is nothing suitable, then a pear for a concrete mixer can be made from a steel sheet with a cross section of 2-3 mm. For the bottom, you should take a thicker metal - about 5 mm - the main load from the drive will go to it.
With a diameter of 500 mm and a height of 400, a compact bucket is obtained, in which, however, 30 liters of solution can be prepared at a time.
The following drawings will tell you more about the design:
It is possible to make a quality pear for a concrete mixer without using the blades. In the diagram shown, instead of them, mortar dividers from 16 mm reinforcing bar are welded inside the tank, which additionally strengthen the structure. This design is an excellent mixer for wood concrete.
Attachment to the shaft occurs through the hub from car wheel, which is welded or screwed to the bottom. If there are no auto parts lying around in the garage, then the fasteners will have to be made manually according to the drawing.
Carrier frame
There can be a variety of variations in its design - there is complete freedom of action, the main rule of its manufacture is that it securely holds all the components and gives free access for loading and unloading concrete.
The main differences in engineering are in the method of pouring the finished solution, for which the tub itself is made movable, or the entire frame is designed in a certain way.
For a bucket made of steel sheet, a frame that provides it with an inclination will be optimal. The container itself is connected to the gearbox drive (15), to which the force comes from the engine (17) through the clutch (16).
All this is mounted on a subframe (18) and rotates on a hinge (14). For different types of solutions, the working slope of the bucket can be adjusted, for which an eyelet (22) is welded to the subframe, through which a sector (10) passes, held in the desired position by a pin (23).
The main provisions of the sector need at least three:
Slope 50% - for heavy solutions.
Slope 30% - for light mixtures (for example, plaster).
Horizontal position for rinsing the container.
Electric motor and gearbox
Rarely, these parts are bought separately - the easiest way is to use what is at hand. The electric motor is suitable from the washing machine, circuit diagram from there, and the gearboxes are assembled from bicycle wheels, belt or chain drives. The closest thing to the factory design is a flywheel welded to the bottom, which spins from the “native” Benedix of an automobile starter mounted on a shaft.
All calculations are made based on the following considerations:
- Engine power is selected according to the ratio of 20 watts per liter of solution.
- The number of revolutions that the gearbox produces for the tub should be in the range of 30-50 per minute. A smaller amount will increase mixing time, and a larger amount will splatter the solution or even cause centrifugal forces, due to which mixing will not occur.
Briefly about the main
A do-it-yourself manual concrete mixer is a completely solvable task for a person who knows how to work with welding machine and skilled in locksmithing.
If a do-it-yourself mixer is made from a barrel, then you can pick up a plastic container that is already completely ready for installation.
When assembling, you need to remember about the engine power, the optimal number of revolutions and the careful centering of the mechanism.
Do-it-yourself concrete mixer is necessary for carrying out construction works. If you want to carry out the construction of a building, you will need a lot of concrete. Even a wooden building needs a solid concrete foundation. In view of this, it is impossible to save on material.
DIY options
Don't know how to make a concrete mixer? There are several options. Easy option - handicraft, working at the expense of human power. Difficult option - homemade device using an electric motor. It is worth making it from improvised means.
Making at home involves observing the nuances. The product must be:
- Safe. It is especially important to pay attention to the gearbox, powered by electric current.
- Low cost, easy production. The parts you need for production should be cheap.
- Ease of application. A mechanical concrete mixer is practically no different from a manual mixer, and it is much easier to use. Decide in advance on the type of device.
Materials and tools
For a concrete mixer from a barrel manual type you will need the following materials:
- channel;
- card loops;
- Bulgarian;
- 200 liter barrel;
- bearing housings;
- metal corners (50x50 millimeters);
- welding machine;
- fasteners;
- flanges;
- pipe.
How to make a concrete mixer with your own hands with an electric motor? Additional materials required:
- electric motor;
- pipe sections;
- rod reinforcement;
- corners.
Do-it-yourself concrete mixer from a barrel (video)
Step-by-step instruction
- Cut holes on the side (24x30 cm) - they are required for laying the concrete components and the hatch.
- The opening of the hatch will be carried out using card loops.
- Flanges are fixed on it. Inside the barrel, they will prevent the walls from breaking.
- The comb is made from the corners. It speeds up the mixing process. The length of the corners is 760 millimeters, they are installed inside the barrel. Pins are fixed to the corners by welding.
- The elements are welded. Racks are placed near the ends of the barrel.
- To give the concrete mixer stability, the supports of the racks are dug into the ground (the depth should be 30 centimeters), the soil is rammed.
- On both sides of the shaft, levers are attached. The length of the handles must ensure that the drum can be rotated with both hands.
After the design of the concrete mixer is ready, it is placed on the site. It is necessary to choose a place where the concrete components will be stored. Their laying goes through the hatch, then the shaft is rotated. To ensure the mixing of the mixture, 15 revolutions are enough.
Important! Growths may appear inside the barrel. For cleaning, stones and water (1 bucket) are placed in the drum. Then it is enough to make 25 revolutions of the shaft. The contents of the barrel are then emptied.
Engine installation
The production of a barrel with an electric motor is carried out using a single-phase motor. Its rotation speed should be less than 40 rpm.
You can use engines from old washing machines - "Wave", "Seagull". They have enough torque. It is important to remember that the optimum rotation speed of the tub is between 20 and 30 rpm. For this, different gearboxes are used. The easiest way is to use a drive belt and a pulley.
It is also allowed to use a motor from a motorcycle running on gasoline. Such a device is convenient to use, since it does not depend on electricity. A chain reducer will help reduce the rotation speed. The engine is attached with 4 bolts to a bracket welded to the body.
Free Concrete Mixer Blueprints
Important nuances
- To make it convenient to use the device, it is necessary to provide for the presence of a tipping structure (it is made from corners) and a mechanism for transportation.
- Before manufacturing, it is worth considering individual characteristics and show design ingenuity. This is the only way to get a product that will be convenient to use.
- For high-quality work, it is necessary to ensure the rotation of the shaft through the bearings. The maximum dose of the solution is limited to 7 buckets.
Drawings: drafting features
- It is not difficult to draw up a drawing for creating a concrete mixer. To make a simple device, you need a bucket, a drill, a bracket. But you can also produce a little concrete. However, with the help of the presented design, it will be possible to make concrete for a garden path or pour a floor in a room. To carry out large volumes, an appropriate capacity is required - from 150 liters. It can be welded from sheets of metal.
- The next step is the construction of the base. It should also be reflected in the drawing. The base must support the weight of the machine and the concrete. It must also be durable. When performing minor work, a frame made of timber with a cross section of more than 100 millimeters is suitable. For large volumes, a metal frame should be preferred. The structure is assembled by welding.
- The engine can be made from a motor from an old washing machine. To ensure the required speed of rotation, it is worth using gearboxes. They can be made from belts and pulleys.
Even in the production of a simple device, drawings are needed. They are much easier to work with.
The principle of operation of the concrete mixer (video)
For construction work, a concrete mixer is simply needed. You can do it yourself. The product can be manual type or equipped with an electric motor. Do not forget about the drawings, with their help the work will be done quickly and without errors!
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To carry out construction activities and landscaping, cement and concrete mortars are used. The process of manual preparation of mixtures is laborious and lengthy. It does not guarantee the uniformity of the working mixture. And it is not advisable to purchase an expensive concrete mixer for a one-time batch. The way out of this situation is a do-it-yourself concrete mixer. She will allow minimum expenses independently prepare a solution with a homogeneous consistency.
An example of a concrete mixer suitable for the home
The device of a household concrete mixer and the classification of mixers
Units designed for mixing concrete solutions are offered to enterprises and are made by home craftsmen in various options. Consider the design of the mixer, which consists of the following units:
- a metal frame or bed that combines the nodes into a single structure. The frame perceives dynamic and static loads, ensuring the stability of the equipment. For heavy units, the bed is stationary, and for small-sized mixers it is equipped with wheels that facilitate transportation. For the manufacture of a metal frame, you can use a corner or steel profile another section;
- a working body designed to increase the homogeneity of the batch. The activator in contact with the stirred solution acts on the components of the mixture. As a result, the concrete solution acquires a uniform consistency. As mixing organs, blades of complex configuration, special blades, screws and other types of activators are used;
- a tank in which concrete is mixed. Such a container is called a barrel and can be made of various materials. For self-manufacturing working capacity, you can use household appliances that have lost their relevance and performance - from washing machines to metal barrels. The containers used differ in size and volume, affecting performance;
- unloading device, facilitating and accelerating the discharge of the prepared solution. Design drain mechanism is determined by the layout of the concrete mixer, the design and dimensions of the barrel, as well as the mass concrete mortar. Various technical solutions are used to facilitate the unloading process;
- drive station. An electric motor is used as a driving unit. The transmission of torque from the electric motor can be carried out through a reduction gear or belt drive. The gear ratio and power of the transmission must ensure the possibility of unhindered rotation of a heavy container filled with a solution.
The concrete mixer differs not only in the design option, but also in the mixing methods. According to the principle of operation, mortar mixers are divided into the following types:
- gravitational. A distinctive feature of these mechanisms is the presence of a rotating container and a fixed screw activator. Stirred cement mixture under the influence of gravity without the application of force falls on the screw axis. Uniform mixing of the ingredients is ensured by the action of the blades welded inside the rotating tank. The gravitational method of mixing allows you to prepare concrete with the required degree of mobility;
- forced. They mix the cement slurry inside a permanently fixed tank due to the action of moving elements. The operational characteristics and uniformity of the working solution prepared in such mixers are much higher when compared with gravity units. The forced principle of mixing in private housing construction is rarely used. It is relevant in concrete mixers designed for industrial use.
Gravity concrete mixers 120L According to the duration of operation, the mixers are divided into the following types:
- periodic action, used for private use. They are equipped with a low power electric motor;
- continuous operation. They are used for industrial purposes and are equipped with a powerful electric drive.
Let us dwell in more detail on the design of devices, the independent manufacture of which is quite simple.
Do-it-yourself homemade concrete mixer - popular designs
Homemade concrete mixer from a barrel When planning independent production, it is advisable to familiarize yourself with proven designs in practice. Various device schemes are possible, of which the following units are most popular:
- mechanical concrete mixer. It is a barrel cut along the longitudinal axis, hinged on a metal frame. Inside the tank there is a movable shaft with blades. The transmission of torque from the electric motor is carried out through a V-belt transmission and a gearbox. The prepared solution is unloaded by tilting the bucket. The advantage of this mortar mixer is the shortened mixing time. The disadvantage of the unit is the spraying of the solution at an increased rotation speed;
- concrete mixer from a barrel equipped with an activator. According to the layout solution, this version of the mortar mixer is similar to the previously described one. The main difference is the use of a whole barrel, in which a sealed hatch is made for loading ingredients and unloading the solution. Torque transmission can be carried out both manually and with the help of an electric drive. IN this option a container rotates, inside which longitudinal combs are fixed. The quality of the batch is determined by the number of revolutions, not the duration of mixing. Despite the complexity of the design, such mechanisms are mass-produced;
- homemade concrete mixer with a mixer. When planning to make a concrete mixer with your own hands, you should pay attention to this option. Despite the complexity of the design of such a mortar mixer, it is worth working on it. The device provides increased homogeneity of mixing concrete mix with an additional degree of freedom. The container with the activator is fixed on a metal frame and can rotate about the longitudinal axis. The frame assembly with the tank has an additional degree of freedom due to the hinged mounting on the base frame of the unit. It is important to ensure the tightness of the tank and the convenience of unloading;
- vibrating concrete mixers. To create a mortar mixer with a vibrational principle of operation, a high-power puncher is required, in the cartridge of which a metal shaft is fixed. The perforator should be rigidly fixed on the frame, ensuring that the shaft is aligned with the center of the container. On the opposite side of the shaft, a car disk should be rigidly fixed, the diameter of which is smaller than inner size barrels. The vertically mounted barrel is then filled with ingredients. The components of the cement-concrete mixture under the influence of vibration are uniformly mixed. When deciding how to make a concrete mixer with your own hands from a car disk, use this option.
For self-production of a concrete mixer, any design option is suitable.
Homemade concrete mixer with a mixer Do-it-yourself concrete mixer - pros and cons
Regardless of whether a large concrete mixer or a small-sized mixer will be made, familiarize yourself with the advantages and disadvantages of home-made devices before starting production.
Advantages of self-made mortar mixers:
- saving Money compared to the purchase of a finished unit;
- improved quality of the prepared cement-concrete mixture;
- reduced duration of mixing the ingredients of the concrete solution;
- convenience of unloading the prepared mixture by tilting the mixer barrel;
- the possibility of manufacturing a mixing device with a manual drive;
- a wide range of materials and containers for self-manufacturing.
Drawing. Tipper concrete mixer Problem points associated with the independent manufacture of mortar mixers:
- complexity of manufacturing living conditions without professional training;
- the need to adjust components and elements to ensure trouble-free operation;
- splashing cement mortar at high stirring frequency.
Do-it-yourself concrete mixer - pros and cons Analyzing the advantages and disadvantages, many developers prefer the independent production of concrete mixers. At the same time, it must be taken into account that if a concrete mixer is made from a barrel with your own hands, the drawings must be used only proven in practice.
How to make a concrete mixer from a barrel with your own hands
Thinking about how to make a concrete mixer with your own hands, prepare drawings or sketches in advance. It is possible to sketch out a full-scale sample for manufacturing, which has positively proven itself in operating conditions. Consider the features of self-production of various options.
How to make a manual and electric concrete mixer
The manual version of the mortar mixer is the simplest. It is best suited for making small amounts of mix and is cheaper than electric models. The mixing process is carried out by filling the tank with components, followed by the transfer of torque by turning the handle.
Design handheld device It is a metal frame on which a rotary shaft with a container for mixing is fixed in hinged supports. A handle is fixed on one side of the drive shaft.
The assembly algorithm provides for the following operations:
- Welding of metal structures. It consists of two triangular sidewalls connected by jumpers. In the upper part there are bushings for fastening the rotary shaft.
- Preparation of the mixing tank. As a container, you can use a barrel, a milk can or a washing machine body. Inside it is necessary to fix the blades.
- Installation of the container on the rotary shaft. It is important to ensure a rigid connection and seal the gaps in the shaft attachment areas.
- Fixation of the handle for mixing and control of the tightness of the mixer. For testing, it is necessary to fill the container with water and make sure that there are no leaks.
Preparing the mixing tank By following the indicated sequence of operations, a concrete mixer can be easily made by hand. Drawings or sketches can be corrected, providing for the possibility of using a milk can or other container.
If a V-belt pulley or a chain drive sprocket is fixed on the side of the shaft opposite to the handle, then it is possible to ensure the transmission of torque from the gearbox connected to the electric motor. A do-it-yourself concrete mixer from a barrel, driven by an electric motor, will provide increased efficiency mixing.
Homemade concrete mixer with a washing machine engine
Using a 0.18 kW motor with a rotation speed of 1500 rpm, it is possible to assemble an electric drive for a mortar mixer. To transmit torque, a starter gear and a flywheel from a car are used.
Do-it-yourself mobile concrete mixer from a washing machine is made in the following order:
- Weld the frame with the gear axles.
- Fasten the wheels.
- Install the drive gears on the axles.
- Attach the motor with a pulley.
- Assemble the belt drive.
- Attach the barrel to the end of the flywheel.
It remains to connect the power supply and check how the homemade concrete mixer from the washing machine works.
Conclusion
Guided by the above recommendations, it is easy to make a concrete mixer with your own hands. Before starting self-manufacturing, it is important to decide on the design of the device. When figuring out how to make a concrete mixer with your own hands, prepare the drawings first. They will help you avoid mistakes.
Not a single building of any scale can do without a high-quality concrete mixer. The device is not cheap, but periodically necessary in the country or in the household, so many people think about buying it even in cases where the question of global construction is not worth it. You can get out of the situation by building a high-quality concrete mixer yourself. Today we will consider several options for how to make it easier and cheaper.
Concrete mixer. Why is she needed
A do-it-yourself homemade concrete mixer reveals a lot of prospects for working with concrete and not only with it, but with all building mixtures. After spending some time building a device of any level of complexity, you can get robust design, which more than once will help out not only its owner, but also neighbors.
It is useful for preparing mortar when laying bricks, foam blocks, stone, for building foundations. different type, for the manufacture of decorative elements and landscape design, For example, garden paths. The price of the most inexpensive concrete mixer is about 8 thousand rubles.
Prices for concrete mixers
It will have an average of 20-25 liters of batch, and the power can be from 150 watts. Not the best choice even for occasional use, especially for construction. The mixing drum in such concrete mixers is belt driven by an electric motor, and this is the most simple design which can be bought.
More advanced and productive models are in a more serious price category. Approximately 22,000 piglets for a concrete mixer with a mixing drum crown drive. Its volume will be from 120 to 140 liters, which is approximately 80 kg of the finished mixture. This is not yet a professional model, but this one can already be used for not very large-scale construction. Now that we are guided by the prices and characteristics of ready-made concrete mixers, we can consider options for building it ourselves, and the design can be chosen depending on how many cubes we need in the ready-mix concrete mixer.
Choice of concrete mixer design
For a summer residence or personal plot everyone will be able to choose a device of such productivity, which there is a need for, and not overpay for extra cubic meters of ground air. This is the main plus of building a concrete mixer yourself. The second advantage is that you can use literally everything that is at hand and build a concrete mixing plant with minimal cost by money and time.
That is why the choice of the concept of the device remains with the owner. We publish photos of the most interesting and simple devices, but you can always complicate the design.
Mandatory design elements
Be that as it may, any concrete mixer must have the following elements in its design so that it can minimally perform its functions:
How to make a frame and choose an electric motor
The bed and frame of the concrete mixer can be made of wood, but there are many questions about the practicality of such a design. As a temporary option, you can use a 15x15 beam, but is there any point in this, to judge each individually. The optimal option in terms of durability and strength is a welded frame from a corner or rolled metal of any profile. We presented several drawings in the photo for example.
If the decision is made to install electric motor, as a rule, use a motor from a household washing machine. Empirically, it has long been calculated that 25-30 revolutions per minute at the outlet of the gearbox is quite enough for high-quality mixing of any mixture. The electric motor from the washing machine can provide good torque, the motor is quite durable, especially if it is used in a gentle mode of operation. For more productive and voluminous concrete mixers, three-phase electric motors are used.
Mandatory geometric parameters for a concrete mixer of a cylindrical type - the angle of inclination of the main axis is about 40-45 degrees. In this case, a folding mechanism is needed to unload the finished mixture. There are options homemade concrete mixers from a barrel with a horizontal mixing drum. In this case, a hinged hatch is arranged in the barrel, which closes tightly during the preparation of the concrete mixture, and opens during unloading, while the finished mixture enters the container prepared in advance.
There are a lot of designs and types of homemade concrete mixers. The main thing in its design and construction is patience and the ability to use elementary tools and welding, which we wish you. Successful work to all!
