Those who are engaged in agriculture are well aware of the importance of having this or that device at hand. Some units can be purchased at a specialized store, while others can be made with their own hands. This will not only save, but also create something useful for the economy. Straw cutter also belongs to such units. With their own hands, everyone can create such a device. The main thing is to know the principle of operation and an approximate design plan.
What is required
To get a neat straw chopper with your own hands, you need to prepare all the tools and materials in advance. To work, you will need:
- Three-phase motor making 1500 revolutions per minute.
- Sheet metal, the thickness of which is 2 mm.
- Steel plate 10 mm thick.
- Sheet metal 3 mm.
- A pipe with a diameter of 25 mm.
- Metal strip 3 mm by 25 mm.
- Locksmith set.
- Welding machine.
- Grinding angle grinder.
- Drill.
Manufacturing Features
What does a straw chopper consist of? With your own hands you can make not only the case, but also the knives. To do this, use carbon steel. Knives are usually cut from an old circular saw. A hacksaw blade of a metal cutting machine is also suitable. As for the body, it can be made from an old barrel or pipe, the diameter of which is 300 mm. To connect the parts, you can use bolts and nuts, as well as electrodes.
If the electric motor makes more than 2,000 revolutions per minute, then experts do not recommend installing knives directly. It is better to create a unit equipped with a belt drive. The car will turn out quite powerful. With its help it will be possible to grind not only straw, but also root crops, and branches.
Where to begin
So, how do you create a straw chopper with your own hands? Drawings are the first things to start with. To get started, you need to draw the design on paper. This will avoid many mistakes. In addition, the drawings allow you to determine the size of individual parts. If you have no idea how to draw diagrams, then you can search for a suitable model on the Internet. This will greatly facilitate the process. After drawing up the drawing, you can proceed to the manufacture of feed cutters.
What a straw chopper consists of
With your own hands to assemble such an aggregate is not difficult. The heart of such an installation is the working unit. This is a metal bin inside which sharp knives rotate. The main thing is to securely fasten the parts. Knives are fixed on a steel disk, which, in turn, is fixed on the axis of the electric motor.
The bunker, most often, has the form of a cylinder. In order not to cause trouble during operation, this part of the straw choppers is made with high sides. Otherwise, you can touch sharp knives with your hand. In the lower part there is a branch pipe. Through it, the discharge of crushed material. For greater convenience, it is located at the very bottom of the hopper and made inclined.
If desired, the hull can be made low, but equipped with a lid with a hole through which straw will be fed. The hopper is mounted on a tripod. Its height should be such that the engine can be located below. The motor is usually attached to the bottom with a separate plate.
As for the disk with a knife, it is very difficult to make it yourself. Therefore, the design of these parts can be arbitrary. It is also recommended that a container be installed near the nozzle that will catch chopped straw. In this case, you can use a plastic barrel with a hole made on the side. Otherwise, the cross-section will fly apart.
How it works
A self-made straw chopper, the drawings of which are given above, is quite simple to use. To get started, turn on the electric motor. Then you need to open the lid and load the straw into the hopper.
The unit will do everything itself. After loading, the finished cross-section begins to fly out of the side pipe after loading, accumulating in a pre-installed container. After this, the finished raw materials can be used for their intended purpose.
Recommendations of specialists
DIY straw barrels are a simple design that can be made at home. The main thing is to follow the recommendations and assemble the unit in accordance with the drawing. It is recommended to mark the metal first, and then carefully cut it according to the scheme. Corners, as well as pipes must be of a certain length, which is also indicated in the drawing. After trimming them, it is necessary to carefully clean the cut points.
DIY straw chopper has certain features. The bottom must be welded to the bunker, and then the brackets. An electric motor is fixed on them. To the brackets, for starters, a steel plate is vertically attached, with holes previously made in it. Only then can the motor be locked. To tighten the structure on the sides of the plate, you can weld scarves. That's all. Now you know how to make a straw chopper with your own hands.