JPS6113088Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a free hammer device for a crusher for pruned branches, bark, grass, peat, feed, fertilizer, etc.
More specifically, a plurality of support rods are installed horizontally around the circumference of a plurality of boards, such as three to five boards fixed to a rotating shaft at a desired interval, and a number of freewheels are rotatably provided. Crush the twigs and other objects as mentioned above with a hammer,
This invention relates to a free hammer device used in a crusher for twigs, etc., which allows the material to be crushed to be adapted to each application.

The conventional free hammer used in the above-mentioned crusher for twigs, etc. has a rectangular shape with one end in the longitudinal direction rotatably attached to the support rod as described above. was of the type in which all free hammers attached to the support rods were always functional. However, in such a conventional type, the hardness and softness of the material of the object to be crushed, the size and shape of the object to be crushed, the amount of each time it is inserted into the free hammer part, etc. The free hammers are in functional condition, so even if all free hammers are not functional due to softness or other conditions, e.g. 3/4, 2/3, 1/3 of the equipped ones
Even if the material can be easily crushed using the method 2, all the free hammers are still rotating, resulting in a waste of power.

This idea was created by focusing on the points mentioned above.
That is, the purpose of the present invention is to provide the free hammers so that they can be fixed to the board in the direction of the rotation axis, so that it is possible to make all the free hammers function or only the desired number, depending on the hardness or softness of the object to be crushed. Therefore, it is an object of the present invention to provide a free hammer device for a crusher for twigs, etc., which can prevent waste of power in the case of soft twigs, etc.

Next, an embodiment of the present invention capable of achieving the above object will be described in detail with reference to FIGS. 1 and 2.

1 is a rotating shaft, 2 is a plurality of boards fixed in parallel to the rotating shaft 1 at desired regular intervals (for example, by welding means), and 3 is inserted and inserted into the periphery of each board 2 at equal intervals; A plurality of (four in the illustrated example) support rods are fixed with nuts 4, and 5 indicates a number of free hammers whose one end is loosely inserted into each support rod 3 through a separator 6. A fixing hole 5a is bored at the end.

Reference numeral 7 denotes a fixing shaft inserted between the rotating shaft 1 and each support rod 3 so that it can be inserted into and removed from each board 2 and fixed with a nut 8. This fixing shaft 7 is used for fixing the free hammer 5. It is configured to be inserted into the hole 5a.

Figures 3 to 5 show an example of a crusher for twigs, etc. equipped with a free hammer device according to the present invention, where Aa is a casing body, _a1 is a free hammer housing formed in the casing body a, and _a2 is a Free Hammer Housing A Chipper disk housing formed on one side of ₁ , 1 is a rotating shaft with pulley 1a, 2 is a board, 3 is a support rod, 5 is a free hammer, 7 is a fixing shaft, 9 is a chipper A rotary disk fixed to the rotary shaft 1 in the disk housing _a2 , 10 a chipper provided in a plurality of chipper holes 9a drilled in the rotary disk 9, 11
12 is a hopper for introducing the material to be crushed that communicates with the free hammer housing A ₁ , 12 is a tube for inserting a thick branch that communicates with the chipper disk housing A ₂ , and 13 is a mesh screen provided at the bottom of the free hammer housing A _1. , 14 indicates a crushed material receiving chamber provided at the lower part of the mesh screen 13 in the casing body a, and the bottom surface 14 of the crushed material receiving chamber 14
a is tilted downward toward the chipper disk housing _a2 . Also free hammer housing
A passage _15a communicating with the guide groove 14 is bored in the lower part of the partition wall 15 that constitutes the tipper disk housing a1 and the chipper disk housing _a2 . Reference numeral 16 indicates a plurality of blades fixed to the rotary disk 9, 17 indicates a discharge cylinder, and the blades 16 are provided on the side opposite to the side where the chipper 10 is present, that is, on the side where the partition wall 15 is present as shown in FIG. The discharge cylinder 17 is provided upward in communication with the lower part of the chipper disk housing _a2 .

In the configuration described above, the twigs etc. thrown in from the hopper 11 are crushed by the free hammer 5 and fall into the guide groove 14 through the mesh screen 13, flowing downward toward the outlet 15a, and the twigs etc. The thick branches inserted from the insertion tube 12 are sequentially cut and crushed by the chipper 10 starting from their tips and remain in the chipper disk housing _a2 , but these crushed materials are absorbed by the blades 16. Due to the discharge action, they are discharged as one from the discharge cylinder 17. The pulverized material discharged from the discharge tube 17 is placed in a suitable container, for example, a container placed on the cargo bed of a car. Depending on the situation, use all the free hammers 5 as shown in Figures 1 and 3 so that all of them function, and use the desired number of these as shown in the imaginary lines in Figures 1 and 2.
The free hammer 5 is rotated by 180 degrees, and the fixing shaft 7 is inserted into the fixing hole 5a of the free hammer 5 (with the fixing shaft 7 removed) and fixed with a nut 8 for use.

As described above, the present invention has the free hammers fixed to the board in the direction of the rotation axis, so that all the free hammers or only a desired number can be used depending on the hardness and softness of the object to be crushed. Therefore, waste of power in the case of soft materials can be effectively prevented.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the device of the present invention;
Figure 2 is a side view of the same as seen from the - line, Figure 3~
Figure 5 shows an example of a crusher for twigs, etc. equipped with the device of the present invention, Figure 3 is a vertical front view, Figure 4 is a vertical side view of the chipper disk housing, and Figure 5 is a side view of the free hammer housing. FIG. a ₁ ... Free hammer housing, 1... Rotating shaft, 2... Board, 3... Support rod, 5... Free hammer, 5a... Fixing hole, 7... Fixing shaft, 1
1... Hopper for charging, 17... Cylinder for discharging.

Claims (1)

[Scope of utility model registration request] A rotary shaft is installed horizontally in a casing body in which a free hammer housing having a charging hopper is partitioned by a partition wall from a chipper disk housing having a thick branch insertion tube and a discharge tube, and the rotary shafts are arranged in parallel with a gap between them. In a crusher for twigs, etc., a plurality of support rods are fitted and fixed at equal intervals around the periphery of a plurality of fixed boards, and one end of a large number of free hammers is loosely inserted into each support rod via a separator. A fixing hole is drilled at the other end of the free hammer, and a fixing shaft that passes through the fixing hole obtained by rotating the free hammer in the direction of the rotation axis is inserted into each board so that it can be inserted and removed and fixed. A free hammer device for a crusher for twigs, etc., characterized by: