JPH0340571Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tree feeding device in a tree crusher.

BACKGROUND OF THE INVENTION A new method has been developed to deal with cut ivy branches after pruning in orchards such as grape and apple fields, and is attracting attention because of the development of pulverizing the pruned branches and returning them to the soil as small pieces for use as compost.

The applicant has worked hard day and night to develop this tree crusher, and has completed various designs for rotor-type crushers that swing out crushing hammers using centrifugal force. As a tree feeding device for this tree crusher, there is, for example, Japanese Utility Model Application Publication No. 56-26208. When thick branches are fed into the machine, the feed port is opened wide to reduce the load on the machine and smoothly send the material to the crushing hammer, and the effect is remarkable. , is used in most of our products.

However, in these conventional models, when a large amount of feed material is fed at once, the hammer cannot keep up with the crushing, and it is necessary to stop the engine for a while, sort out the feed material, and restart the operation.

In this way, even when a large amount of crushed material is supplied at once, the present invention provides a centrifugal clutch between the rotary shaft of the hammer and the feed roll for the crushed material, so that the rotation of the rotor hammer is not stopped and the feed roll is temporarily stopped. To provide a tree crusher in which the chisel is stopped to continue crushing, and when the load on the rotor hammer becomes lighter, the feed roll is operated again to supply and crush material.

To explain the present invention with reference to the accompanying drawings, Fig. 1 shows a sectional view of the inside of a tree crusher, where A is the crusher, and 1 is the rotor hammer 1', which is the rotary shaft of the rotor hammer, as shown by the arrow. It rotates, and the hammer is swung out by this centrifugal force to crush the crushed material B. Reference numeral 8 denotes a feed roll for the feed material, and 9 a spring that presses down the feed roll 8 and is provided outside the supply port.

FIG. 2 shows a plan view of the essential parts of the tree crusher of the present invention, and FIG. 3 shows a side view of the same. In the figure, a centrifugal clutch 2 is provided outside the shaft 1' of the rotor hammer 1. Reference numeral 2' in the figure indicates the shoe portion of the clutch. Although this shaft 1' is not shown, it is connected to the engine, and an arm 7 is rotatably attached to the side surface of the machine frame around this shaft 1'. A supply material feed roll 8 is pivotally attached to one end of this arm 7, and a chain gear 4 is provided at the tip of the shaft.
Further, a chain gear 3 is provided at the other end of the arm 7, and the shaft 1' of the rotor hammer and the chain gears 3, 4 are connected to each other.
Chains 5 and 6 are connected between them, and the rotor hammer shaft rotates as the engine rotates.
This causes the shoe portion 2' of the centrifugal clutch 2 to expand outwards and engage the clutch, thereby rotating the gears 3, 4 and rotating the feed roll 8 for supplying the material.

During normal operation of the tree crusher of the present invention, as the engine rotates, the rotor hammer 1 and the feed roll 8 for supplying the material work together to supply and crush a certain amount of material. However, if a large amount of material is fed at once, that is, a large amount of pruning plates are fed at once, the torque of the rotor hammer 1 increases, putting a load on the engine and reducing the speed of the shaft 1'. When this condition occurs, the centrifugal clutch attached to the tip of the shaft 1' is disengaged, stopping the transmission of the chains 5 and 6, and thereby also stopping the rotation of the feed roll 8. However, even in such a state, the rotor hammer 1 continues to rotate, so the trees are sequentially crushed and discharged, and as the crushing progresses for a while and the load on the engine becomes lighter, the rotational speed increases and the centrifugal clutch 2 connects and feeds the tree. The rolls 8 operate to supply wood, and the tree continues to be crushed by repeating this operation.
Each of the gears 3 and 4 is swingably attached to the arm 7 about the shaft 1', so when the amount of material supplied to the feed roll 8 increases, the arm 7 is moved by the extension of the spring 9. The spring 9 rotates upward to enlarge the opening and when the amount of material to be supplied becomes small.
It seems to return to its original position by shrinking.

Since the tree crusher of the present invention has the above-described structure, even when a large amount of branch materials, etc. is supplied, the feed roll 8 expands by the action of the spring 9 to receive the material. Unlike conventional crushers, when a load is applied to the rotor hammer, the engine does not stop each time, but only the material feed is temporarily stopped and grinding continues, and when the load becomes lighter, the material is fed again. This method has the revolutionary practical effect of making it possible to carry out tree crushing work with extremely high efficiency as the crushing process is carried out continuously from beginning to end, making it possible to carry out the crushing process with extremely high efficiency.

[Brief explanation of the drawing]

FIG. 1 shows a cross-sectional view of the feeding section of the tree crusher, and FIG. 2 shows a plan view of the main parts. FIG. 3 shows a side view. 1... Rotor hammer of crusher, 2... Centrifugal clutch, 3, 4... Chain gear, 5, 6...
Chain, 7... Arm, 8... Material supply roll,
9...A spring that swings the arm 7.

Claims (1)

[Scope of utility model registration request] The hammer 1 is swung out by the rotational drive and the material B is
In a tree crusher A for crushing trees, a centrifugal clutch 2 equipped with a shoe 2 is provided on the coaxial end of a rotor hammer shaft 1', and an arm 7 is provided swingably around the rotor hammer shaft 1', A shaft 8 of a feed roll for supplying pruning branches is attached to one end of the arm 7, a chain gear 4 is provided on the shaft 8, and a chain gear 3 is provided on the other end of the arm 7, and the rotor hammer shaft 1' The centrifugal clutch 2 at the end of the coaxial shaft and the chain gear 4 are connected by a chain 6, and a spring 9 is provided on the feed roll 8 side of the arm 7, and the expansion and contraction of the spring 9 feeds the pruned branches according to the amount of supply. A tree feeding device in a tree crusher characterized by moving a roll shaft 8 up and down.