Straw shredders can come in handy on the farm, especially if you are raising and keeping livestock. You can make such a design yourself, but you can also get it in the store. However, the first option will undoubtedly be much cheaper.
Methods of manufacturing a grinder
You can make your own equipment in several ways. After reviewing them, you can choose the most suitable for you. Drawings of a straw chopper will help to make a choice. So, the first version of the manufacture of the grinder involves the use of a drill. The grinding process will resemble the operation of a food processor. Here you will also need a cylindrical body, which is a simple bucket, in which a well-sharpened knife is located. If you run it in a circle at a significant speed, then the cutting of straw will occur. In order to perform such a unit, you should use a two-speed drill brand "Temp", whose power is 850 watts. The knife should be made of hacksaw blade. The secret lies in the sharpening of the knife. If these manipulations are performed correctly, the straw will not become tangled in the blade.
Such straw choppers should be made using a one-way knife sharpening method. It must be placed with the ground surface down.
Production of a grinder from a vacuum cleaner
If there is no drill available that could be used to make the apparatus, then a Typhoon vacuum cleaner can be used. According to the working principle, this device will not differ from the previous one, but it will look more attractive, in addition, the performance of the unit will be much more. If in the above case the straw is in the bucket where the cutting blade is placed, now the raw materials must be fed through the upper hole, while the finished substrate will exit through the lower hole, which is located in the side of the vacuum cleaner. A hay and straw chopper should be made in such a way that it is possible to correct the situation in which the straw will spread. This can be done by using a protective cover. Of course, such a setup does not look so representative compared to the purchased one, but it works perfectly and costs nothing.
Recommendations for work
Straw choppers at home can be made on the same principle, but using any capacity. Only need to pick one that has a cylindrical shape. It can even be an old pan or a piece of pipe of suitable diameter. The unit can be equipped with an engine. It is necessary to use one that has a power equal to 180 watts. This is acceptable to borrow from a washing machine, which is no longer in use. For the manufacture of knives, you can use the old hacksaw blade, and in the role of the racks you can prepare a rectangular profile, the dimensions of which are 15 x 15 mm.
Mounting the components of the unit
When making straw choppers, it is also necessary to prepare a sleeve, which should have a height equivalent to 40 mm. Knives must be fixed on this element. The sleeve can be prepared on a lathe.
The engine, from which the pulley should first be removed, should be fixed to the container on the studs, positioned from the bottom. In order to fix the knives, it is necessary to use plumbing nuts with a diameter of 32 mm. In the manufacturing process of the bushings, it is necessary to cut the thread in advance to install the nuts. Do not forget about the hole for the motor shaft.
To ensure a solid mount on the shaft, 2 holes with a diameter of 7 mm should be made in the sleeve. After them, they will have to cut the M8 thread, which will allow mounting the locking bolts. On the motor shaft from the back side, it is necessary to groove the pads to increase the strength of bolting the sleeve. Stepping back from the top of the cylinder 15 mm, it is necessary to remove the faces, applying a grinder for this, this will allow you to form a square, the side of which should be equal to 25 mm. Knives are supposed to be put on him.
Making knives
The straw chopper has its main component - knives. You can make them from a hacksaw blade, from which four blanks are cut using a grinder. In the central part of each element, prepare a square hole, the side of which should be equal to 26 mm. The stiffness of the original canvas will affect the width of the parts. The knives must be placed closer to the bottom. In order to sharpen sharply the cutting edges, it is necessary to apply a sharpener. The bolts that hold the bushing must be located above the knives. If it is not possible to make a hole for chopped straw, placing it under the knives, it should be done from the side. Why does the grinder come into play, with which you can make a 7 x 7 circle.
When making a straw chopper, it is necessary to form a guide element of the body, for this steel is used. The housing must be fixed to the chopper with M3 bolts. Care must be taken to ensure that the installation platform is as stable as possible. For what its base needs to be done more in comparison with the upper part. It must be made as functional as possible, in addition, it must be convenient. Hay, straw chopper should have a platform that will not only hold the unit, but also protect the motor. It must be fixed to the container using three M6x45 bolts. But the side faces of the platform are preferably closed with steel sheets. In the racks, you need to prepare the thread for installing the M3 bolts, with which the blades are fixed on the platform body.
Manufacturing a chopper from a pump
Hay, straw chopper can be made from improvised materials. In order to carry out the simplest unit, you can use a pump of the brand "Agidel", by the way, any similar electric motor is suitable, but you need to choose one that will be able to produce about 3000 rpm. In addition, it must be powered by a 220 V network. An old aluminum pan is also required. A hacksaw designed for woodworking will also come in handy. It will be needed in the amount of several pieces, and will be needed for making knives.
When you make a straw chopper with your own hands, you need to think about how the installation will start, a button is useful for this, which will be the NVD from the old washing machine, also prepare a plug and an electric cord.
Manufacturing recommendations
Do-it-yourself straw chopper should be designed so that the motor is located under the pan. While the start button should be located at the rear of the platform, this will make it easy to reach.
Safety regulations
Do-it-yourself straw chopper, the drawings of which are presented in the article, should be used very carefully during operation, because the design is based on sharp knives, which are considered quite dangerous, since they can cause serious damage to humans.
If you made a device that runs on electricity, you must be especially careful, only this way the chopper will last a long time and will not cause injury. Particular care must be taken to ensure that children do not try to use the device, this can lead to unpleasant consequences. Do-it-yourself straw chopper, the drawings of which must be considered before starting work, must be used only for its intended purpose.