JP4082698B2 - Pruning material crushing equipment - Google Patents

Description

  The present invention relates to a crushing apparatus for pruning materials such as cut branches and bamboo materials generated by pruning roadside trees and the like.

  Conventionally, in the processing of the roadside trees, the pruned timber that has been cut off is used as it is, or is cut again on the roads and transported to a treatment plant by a truck.

  However, the amount of waste materials such as branches and trunks due to the pruning of street trees in the city area is large, and the labor and number of trucks for carrying them out are considerable, and the financial burden associated with maintaining the street trees in the city area is enormous. It has become a thing.

  In order to solve this problem, an attempt was made to reduce the conveyance capacity of the pruning material by bringing various small crushers described in Patent Documents 1 and 2 below to the pruning site.

  However, it was difficult to put a pruning material having a large volume capacity into a crusher because the shape was not fixed and the crushing efficiency was poor, and there was no one suitable for crushing the pruning material at the pruning site.

  In addition, since crushers currently have high-speed rotation (1000-1500 rpm), (1) loud noises make it difficult to operate in urban areas due to noise problems. There is a problem that fermentation is slow without being crushed, and (3) soft materials such as grass cannot be crushed.

  Therefore, although a low-speed crusher has appeared as a noise countermeasure, there are problems such as (1) large crushing particle size and small specific gravity, and (2) slow fermentation.

As a countermeasure, a model that is used in combination with a hulling device has also appeared. However, this increases the size of the device and is unsuitable and expensive when there is a weight limit for movement.
JP 2002-126550 A Japanese Patent No. 34475781

  SUMMARY OF THE INVENTION An object of the present invention is to provide a pruning material crushing apparatus that can efficiently crush and prun a pruning material and compost it at an early stage, and that can be easily mounted on a vehicle.

A secondary crusher and a secondary crusher are provided continuously in the direction of movement of the crushing material of the twin screw crusher, and a pruning material inlet is provided at the operation start portion of the biaxial screw crusher. A pruning material crushing apparatus with the end of a secondary crusher as a crushing material discharge position , wherein the secondary crusher includes a fixed tooth and a rotating tooth that rotates together with each rotation shaft of the biaxial screw crusher. The fixed teeth incision and the rotation teeth incision are provided relative to each other, and the rotation teeth are mounted so as to be located in a guide hole of a guide plate fixed to the apparatus body, The fixed tooth is arranged so that an axial projection of the incisor is located in the guide hole .

  In the present invention, since the twin screw crusher and the secondary crusher are continuously provided in the moving direction of the crushed material, the pruning material introduced into the operation start part of the twin screw crusher is rotated at each rotation. It is caught between the screw teeth of the shaft and crushed while being loosened. In the state processed by this twin screw crusher, the pruning material is not completely crushed and is in a partially continuous state. The pruned material partially crushed while being unraveled by the twin screw crusher is automatically fed to a continuously provided secondary crusher, cut into pieces and crushed into fine pieces.

  It is preferable that one of the rotating shafts of the twin screw crusher rotates with a difference in peripheral speed with respect to the other. Thereby, a shearing force is generated between the screw teeth of the respective rotating shafts facing each other, and the primary crushing efficiency by the biaxial screw crusher is improved.

  Moreover, it is preferable that the pitch of each screw tooth is gradually reduced toward the moving direction of the crushed material. As a result, the feeding density of the crushed pruning material collected between the pitches and fed to the secondary crusher is increased, and the efficiency of secondary crushing and hulling by the secondary crusher is improved.

Further, the fixed tooth and the rotating tooth of the secondary crusher provided continuously to the twin screw crusher are alternately provided along the axial direction of each rotating shaft of the twin screw crusher, and the fixed tooth and the rotating tooth are rotated. The number of tooth combinations is preferably variable . The number of fixed teeth and rotating teeth (the number of combinations) is set as appropriate according to the desired final size of the crushed material.

  Moreover, in this invention, you may make it convey the crushed material discharged | emitted from the discharge position of a secondary crusher to a crushed material storage container with a conveyor. You may make it receive the crushed material discharged | emitted from the discharge position of a secondary crusher with a crushed material storage container. In addition, these series of devices can be integrally mounted on a vehicle.

  The pruning material crushing apparatus of the present invention can be formed in a small size by continuously providing a twin screw crusher and a secondary crusher. Enable operation. In addition, secondary crushing and hulling with a secondary crusher is performed following the primary crushing with a twin screw crusher, so that the efficiency of crushing and hulling of the pruned material can be increased, and the pruned material can be made flexible. Fermentation proceeds faster and the composting period is greatly reduced.

  Thereby, the conveyance amount of pruning materials such as street trees can be substantially increased, and the pruning process can be made more efficient.

  Hereinafter, embodiments of the present invention will be described by way of examples.

  FIG. 1 shows a pruning material crushing apparatus according to the present invention, in which FIG. 1 (a) is a plan view and FIG. 1 (b) is a front view. FIG. 2 is a view taken along line AA in FIG.

  In FIG. 1, the pruning material crushing apparatus of the present invention includes a twin screw crusher 10 and a secondary crusher 20 provided continuously in the moving direction of the crushing material of the biaxial screw crusher 10. . In addition, an input shooter 30 is provided above the operation start portion of the twin screw crusher 10 as a pruning material input port.

  The rotary shafts 11 and 12 of the twin screw crusher 10 are respectively provided with screw teeth 13 and 14 along the axial direction. By rotating the rotary shafts 11 and 12, the twin screw crushing is performed. The machine 10 is activated. The pitch of the screw teeth 13 and 14 is gradually reduced toward the moving direction of the crushed material, and the cutting edges are opposed to each other with a gap of 2 to 3 mm.

  The rotary shafts 11 and 12 of the biaxial screw crusher 10 are rotationally driven by a drive motor 40 (hydraulic motor). The rotation of the drive motor 40 is reduced to 1/3 by the reduction gear 41. Since one rotation shaft 11 is directly connected to the reduction gear 41, the one rotation shaft 11 rotates at a rotational speed that is 1/3 of the rotation of the drive motor 40. The rotation of one rotating shaft 11 is decelerated by the reduction gear 42 and transmitted to the other rotating shaft 12. Thereby, one rotating shaft 11 and the other rotating shaft rotate with a peripheral speed difference, and in the embodiment, the peripheral speed (rotational speed) of one rotating shaft 11 is the other rotating shaft. The peripheral speed (rotational speed) of 12 is about 1.5 times. This peripheral speed difference can be set arbitrarily.

  The secondary crusher 20 is provided in the terminal part of each rotating shaft 11 and 12 of the twin-screw crusher 10, and the boundary part of the twin-screw crusher 10 and the secondary crusher 20 is shown in FIG. As shown in b) and FIG. 2, a guide member 50 is provided. By this guide member 50, the crushed material that moves along the axial direction of the rotary shafts 11 and 12 of the biaxial screw crusher 10 is reliably distributed toward the secondary crusher 20.

  FIG. 3 is an exploded perspective view of a main part of the secondary crusher 20. The secondary crusher 20 includes a fixed tooth 21 fixed to the apparatus main body, and a rotating tooth 22 that is attached to a terminal portion of each rotary shaft 11, 12 of the biaxial screw crusher 10 and rotates together with each rotary shaft 11, 12. And have. In the embodiment, the rotating tooth 22 is mounted so as to be positioned in the guide hole 23a of the guide plate 23 fixed to the apparatus main body. The secondary crusher 20 is configured by connecting a plurality of combinations of fixed teeth 21 and rotating teeth 22 along the moving direction of the crushing material as necessary. In the embodiment shown in FIG. 1, two sets of fixed teeth 21 and rotating teeth 22 are connected, and the fixed teeth 21 and rotating teeth 22 move in the direction of movement of the crushed material (the respective rotating shafts of the biaxial screw crusher 10). 11 and 12 in the axial direction).

  FIG. 4 is an explanatory diagram showing a combined state of the fixed teeth 21 and the rotating teeth 22 of the secondary crusher 20. In the combined state, the incisor 21a of the fixed tooth 21 and the incisor 22a of the rotating tooth 22 are arranged so as to face each other. As the rotating tooth 22 rotates, the incisor 22a and the incisor 21a of the fixed tooth 21 are arranged. A crushed material is sandwiched between the two, and it is further cut and crushed into pieces. The shape of each incisor 21a, 22a is made into the shape that a crushed material moves to the center direction of the fixed tooth 21 and the rotation tooth 22 at the time of cutting and crushing. In the embodiment, the rotating tooth 22 is mounted so as to be positioned in the guide hole 23a of the guide plate 23, and the cutting tooth 21a of the fixed tooth 21 is also positioned within the range of the guide hole 23a. The crushed material moves to the end of the secondary crusher 20 and is discharged without leaking out from the guide hole 23a.

  In the above configuration, the pruning material input from the input shooter 30 is primarily crushed by the screw teeth 13 and 14 of the biaxial screw crusher 10. At this time, since each screw tooth 13 and 14 is rotating at a different peripheral speed, a shearing force is generated between the opposing screw teeth 13 and 14, and the primary crushing efficiency is improved. After the primary crushing by the twin screw crusher 10, the crushed material is continuously sent to the secondary crusher 20. In the secondary crusher 20, the crushed material is further finely cut and crushed by the fixed teeth 21 and the rotating teeth 22 and moved while being crushed, and discharged at the end.

  FIG. 5 is a schematic plan view showing an embodiment in which the pruning material crushing apparatus according to the present invention is mounted on a vehicle. In FIG. 5, the crushed material discharged from the end of the secondary crusher 20 is conveyed and stored in the crushed material storage container 70 by the conveyor 60. These series of devices are integrally mounted on the vehicle bed 80.

  The present invention can be applied not only to the pruning material of street trees but also to the crushing treatment of pruning materials of fruit trees and bamboo trees.

The crushing processing apparatus of the pruning material which concerns on this invention is shown, (a) is a top view, (b) is a front view. It is an AA arrow line view of FIG. It is a disassembled perspective view of the principal part of a secondary crusher. It is explanatory drawing which shows the combination state of the fixed tooth and rotary tooth of a secondary crusher. It is a schematic plan view which shows the Example which mounted the crushing processing apparatus of the pruning material which concerns on this invention in the vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Twin screw crusher 11, 12 Rotating shaft 13, 14 Screw tooth 20 Secondary crusher 21 Fixed tooth 21a Cutting tooth 22 Rotating tooth 22a Cutting tooth 23 Guide plate 23a Guide hole 30 Input shooter 40 Drive motor 41, 42 Reduction gear 50 Guide member 60 Conveyor 70 Crushed object storage container 80 Cargo carrier

Claims (5)

A secondary crusher and a secondary crusher are provided continuously in the direction of movement of the crushing material of the twin screw crusher, and a pruning material inlet is provided at the operation start portion of the biaxial screw crusher. A pruning material crushing device with the end of the next crusher as the crushed material discharge position ,
The secondary crusher includes fixed teeth and rotating teeth that rotate together with the rotation shafts of the biaxial screw crusher, and the incisors of the fixed teeth and the incisors of the rotating teeth are provided in a relative manner. And
The rotating tooth is mounted so as to be positioned in a guide hole of a guide plate fixed to the apparatus main body, and the fixed tooth is arranged so that an axial projection of the incisor is positioned in the guide hole. and it is pruning material crushing processing device. The said fixed tooth and the said rotation tooth are alternately provided along the axial direction of each rotating shaft of the said twin-screw crusher, The number of the combination of this fixed tooth and a rotation tooth is changeable. Pruning material crushing equipment. 3. The pruning material crushing apparatus according to claim 1 , wherein one of the rotating shafts of the biaxial screw crusher rotates with a difference in peripheral speed with respect to the other . The screw teeth provided along each rotational axis of the biaxial screw crusher are formed so that the pitch gradually decreases in the moving direction of the crushed material . The pruning material crushing apparatus according to claim 1. The pruning material crushing apparatus according to any one of claims 1 to 4, further comprising a conveyor that conveys the crushed material discharged from the discharge position of the secondary crusher to a crushed material storage container .

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