JPS6334887Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drive device for smoothly supplying crushed material and driving a hammer in a tree crusher.

Farmers are currently faced with the difficulty of disposing of branches cut off from fruit tree pruning and leaves collected in large quantities during farming operations. For this reason, the applicant has previously developed a tree crusher that crushes such pruned branches, straw, and grass collected from undergrowth mowing, and uses the crushed waste as compost and returns it to the soil. We have made progress in doing this, and the effects have been noticeable.

The present invention relates to an improvement of this tree crusher, which allows the supply of crushed material and the drive of the crushing hammer to be carried out smoothly, improving work efficiency and reducing the load on the engine. The purpose is to reduce equipment wear and tear.

The present invention will be explained below with reference to the attached drawings.
The figure shows a cross-sectional view of the main part of the drive mechanism of the tree crusher A, and FIG. 1 shows a side view showing the rotational operation of the operating shaft shown in FIG.

Further, FIG. 3 is a sectional view showing details of the drive mechanism.

In the figure, reference numeral 1 denotes a hammer drive shaft to which a crushing hammer 8 is attached, and is connected to a motor M (not shown). Reference numeral 3 denotes a material supply roller for supplying crushed materials such as pruned branches and straw, which is equipped with blades, and when the shaft 3 rotates, the material is supplied in the direction of the hammer 8 and crushed. be exposed. The hammer drive shaft 1 is fitted with a centrifugal clutch 2, and the base of the centrifugal clutch 2 is connected to a pulley 7' of a rotating shaft 7 at the other end of the machine body by a V-belt 6. It is connected to the pulley 4 of the supply roller shaft 3 through a chain 5. 2′
A shoe is housed in the centrifugal clutch 2 and is attached to the drive shaft 1 by a spring.

The drive device of the tree crusher of the present invention has the above-mentioned structure, so to explain its operation, the engine M
(not specifically shown) starts and the hammer drive shaft begins to rotate, and as this rotation speeds up, the shoe 2' provided on the shaft 1 is swung out by the centrifugal force caused by the rotation and centrifuged. It engages with the clutch 2, and the centrifugal clutch 2 rotates. The rotating shaft 7 is rotated by the rotation of the centrifugal clutch 2, and the pulley 4 is actuated by the V-belt 6 and chain 7, and the material supply roller shaft 3 is rotated to supply the material and crush it. Begins.

As the work continues, the load on the engine increases and the engine speed drops for the first time.Then, the centrifugal force of the centrifugal clutch 2 decreases in proportion to this, causing the clutch 2 to disengage and the roller shaft 3 to stop. The supply of crushed material is then stopped. In this way, as the crushing progresses and the crushing load decreases, the engine speed increases, and when the specified speed is reached, the centrifugal clutch 2 engages again, material is supplied, and crushing begins, and this repeated operation continues. It is something that can be done.

Since the drive device of the present invention is as described above, it can operate continuously by reducing the load on the engine caused by crushing, and eliminates the wasteful interruption and cancellation of the engine due to the operator's negligence, which was conventionally done during work. This not only improves efficiency because it eliminates the need for operations and allows constant grinding work to be performed continuously, but it also has the extremely practical effect of eliminating accidents such as breakdowns by reducing the burden on each part of the equipment. be.

[Brief explanation of the drawing]

FIG. 1 shows a side view of the driving part, and FIG. 2 shows a sectional view of the main parts of the tree crusher. Further, FIG. 3 is a detailed sectional view showing the drive mechanism. 1...Hammer drive shaft, 2...Centrifugal clutch,
3...Material supply roller shaft, 8...Hammer.

Claims (1)

[Scope of utility model registration request] In a tree crusher that crushes trees by rotating a hammer, a centrifugal clutch 2 is provided at one end of a hammer drive shaft 1, the other end of the hammer drive shaft 1 is connected to an engine M, and the centrifugal clutch 2 and rotation shaft 7 A drive device for a tree crusher, characterized in that the rotary shaft 7 is connected to a crushed material supply roller shaft 3 through a chain 5.