JP2000070747A - Tree branch crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable easily moving a tree branch crusher without adding a traveling device for self-traveling and to enable suitably using it for work requiring frequent transfer such as roadside tree trimming. SOLUTION: In a stationary tree branch crusher 1 provided with a feeding port 2 for feeding material to be pulverized Z, a pulverizer 3 for pulverizing the material to be pulverized Z, and a feeder 4 for feeding the material to be crushed Z fed from feeding port 2 into the crusher 3, the feeding port 2, the feeder 4, and the pulverizer 3 are arranged on a base frame of a low deck, and a leg body 6 for supporting the feeding port 2 at prescribed height on above ground installation is attachably and detachably fitted to the base frame 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tree crusher for crushing a cut tree or a pruned tree branch into chips.

[0002]

2. Description of the Related Art A branch crusher for crushing a cut tree or a pruned tree branch into chips is generally provided with an input port for inputting a crushed object such as a tree or a tree branch, and a crushing object. The crushing device includes a crushing device for crushing, and a feeding device for feeding the material to be crushed input from the input port into the crushing device.

[0003] This tree crushing machine includes a stationary type and a self-propelled type provided with a traveling device. The stationary tree pulverizer is installed and used on the ground at the crushing site of the object to be crushed. It is supported by legs so that it is at waist level.

When chips crushed by a tree crusher are sprayed on the base of a tree such as a street tree, weeds can be controlled, and the sprayed chips corrode with time to become nutrients of the tree. . Therefore, in recent years, tree branches generated in the pruning work of street trees are crushed on the spot into chips, and sprayed at the base of the tree, so that the pruned branches that were previously treated as waste can be effectively used. It is becoming.

When a stationary tree pulverizer is used in such a street tree pruning operation, the tree pulverizer is loaded on a truck with a crane, transported to a pruning site, and unloaded from a truck bed by a crane. It is necessary to perform the crushing work after setting it on the ground.

[0006] However, the pruning work site for street trees generally requires a long-distance transport to collect pruned branches to a place where a tree pulverizer is installed, over a wide area. In order to shorten the transport distance of pruning branches, the location of the tree crusher must be moved, but it must be loaded on a truck with a crane every time the tree crusher is moved, and repeated loading and unloading. Without much labor.

Some stationary tree crushers are provided with wheels on their legs so that they can be towed by a towing vehicle. However, this requires a large work area due to the combination of the towing vehicle and the tree crushing machine. Hamper road traffic.

[0008] On the other hand, if a self-propelled tree crusher is used for street tree pruning work, the above-mentioned problems can be solved by moving easily, but a traveling device for self-propelling is added to the tree crusher. Therefore, the tree crusher becomes extremely expensive.

[0009]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the tree pulverizer and can be easily moved and used for operations requiring frequent relocation such as pruning street trees. It is an object of the present invention to provide an inexpensive tree-pulverizer that is suitable for performing the operation, does not need to add a traveling device for self-propelling, has a simple structure, and is inexpensive.

[0010]

According to the present invention, there is provided an inlet for charging an object to be crushed, a crusher for crushing the object to be crushed,
In a stationary tree pulverizer having a feeding device that feeds the material to be ground input from the input port into the pulverizing device, the input port, the feeding device, and the pulverizing device are arranged on a low-floor base frame, The above-mentioned problem is solved by providing a leg that supports the insertion port at a predetermined height during installation so as to be detachable from the base frame.

When this tree crusher is used for a normal crushing operation that does not need to be relocated frequently, a leg is attached to a base frame at a crushing treatment site and is installed on the ground. In this state, the tree-pulverizer is supported by legs at a height suitable for an operator to input an object to be pulverized into the input port.

[0012] Further, when used for an operation that requires frequent relocation, such as a pruning operation for a tree on a street, the tree-pulverizer removes the legs from the base frame and places the loading port on the truck bed. Mounted backwards. Since the base frame has a low floor, when the tree crusher is mounted on the bed of the truck, the input port has a height that allows an operator to easily input the object to be ground from the ground. Also, there is no need for a large work place.

[0013] When the truck equipped with the tree crusher is stopped at the place where the crushing process is performed, the crushing operation can be performed immediately by lowering the tilt of the back of the loading platform. If relocation is necessary, you can run the truck and move it to any location,
No special installation work is required.

As described above, a general-purpose truck may be used when frequently used for work requiring relocation.
It is not necessary to add a traveling device for the self-propelled tree grinder, and the structure is simple and inexpensive.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view showing the structure of a tree crusher according to an embodiment of the present invention, FIG. 2 is an explanatory view of a positional relationship between a crusher and an inlet, and FIG. FIG. 2 is a side view showing a state where the machine is mounted on a truck.

The tree pulverizer 1 includes an input port 2 for charging the object Z, a pulverizing device 3 for pulverizing the object Z, and a pulverizing device 3 for inputting the object Z input from the input port 1 into the pulverizer 3. Feed device 4 for feeding the feed port 2 and the feed device 4
And the crushing device 3 are arranged on a base frame 5 on a low floor.

The feed device 4 includes a feed drum 41 driven by a feed hydraulic motor (not shown), and crushes a cut tree, a pruned tree branch, or the like input from the input port 1. The object Z is sent into the crusher 3 by the rotation of the feed drum 41.

In the crushing device 3, the object to be crushed Z
A cutter wheel 32 having several cutter knives 31 for shearing and crushing, a hammer knife 33 for further crushing the object Z to be crushed and crushed by the cutter knives 31, and a crushed chip by wind power A fan blade 34 for discharging the powder to the outside of the crushing device 3 is incorporated. The cutter wheel 32, the hammer knife 33, and the fan blade 34 are mounted on a common rotating shaft 35, and high-speed rotation is given by a crushing hydraulic motor (not shown).

At the top of the crushing device 3, a chip discharge pipe 3 is provided.
6 are provided. Further, on the base frame 5 adjacent to the pulverizing device 3, a power hatch 7 provided with an accessory such as an engine and a hydraulic pump is disposed.
The power of the engine is converted to hydraulic pressure by a hydraulic pump and supplied to a crushing hydraulic motor and a feed hydraulic motor to drive the crushing device 3 and the feed device 4. The control of the starting and stopping of the crushing hydraulic motor, the starting and stopping of the feed hydraulic motor, the feed speed adjustment, and the temporary feed stop when the crushing device 3 is overloaded are all controlled by the hydraulic pressure of the power hatch 7. This is performed by control.

The crushing device 3 and the feed device 4 may be configured to transmit the power of the engine by a mechanical power transmission device and to be mechanically driven. As shown in FIG. 2, since the crushing position E at which the cutter wheel 32 crushes the crushed object Z is located below the cutter wheel 32, the crushing device 3 has a height from the bottom surface of the base frame 5 to the bottom surface of the input port 2. In this pulverizer 3, the position of the inlet 2 is H ≒ 380 mm.

A leg 6 for supporting the base frame 5
Is configured as a separate body, and the connecting pin 61 is used to
It can be easily attached and detached. The connection pin 61 is provided with a stopper (not shown). The height of the leg 6 is set such that the input port 2 has a predetermined height suitable for an operator to input a material to be ground when the tree crusher 1 is installed on the ground.

On the base frame 5, hanging hooks 51 are fixed in place, and using the hanging hooks 51,
The tree crusher 1 can be lifted by a crane or the like and loaded on a truck bed, or can be lowered and installed on the ground with the legs 6 attached.

Also, as shown in FIG.
Can be mounted on the bed 91 of the truck 9 with the crane 8 with the legs 6 removed. At this time, the tree crusher 1 keeps the input port 2 toward the rear of the loading platform 91. Since the base frame 5 has a low floor, the tree crusher 1
Is mounted on the loading platform 91 of the truck 9, the input port 2 has a height that makes it easy for the operator to input the object Z from the ground.

When ordinary crushing work that does not require frequent relocation is performed using the tree crushing machine 1, the truck 9 is transported to the crushing site and the legs 6 are attached to the base frame 5. Install it on the ground in a state. In this state,
Since the tree crusher 1 is supported by the legs 6 at an appropriate height for the worker to input the crushed object Z into the input port 2, the operation can be easily performed.

When using the tree crusher 1 to carry out frequent relocation operations such as pruning of street trees, the tree crusher 1 removes the legs 6 from the base frame 5. The loading port 2 is placed on the loading platform 91 of the truck 9.
1 towards the rear. Since the base frame 5 has a low floor, when the tree crusher 1 is mounted on the bed 91 of the truck, the inlet 2 has a height at which the worker can easily input the object Z from the ground. When the truck 9 is stopped at a place where the crushing process is performed, and the tilt behind the loading platform 91 is lowered, the crushing operation can be immediately performed. If relocation is necessary, the truck 9 may be moved and moved to an arbitrary location, and no special installation work is required.

As described above, since the general-purpose truck 9 may be used for work requiring frequent relocation, it is not necessary to add a traveling device for self-propelling to the tree-pulverizing machine 1, and the structure may be reduced. Is simple and inexpensive. Also, there is no need for a large work place.

[0027]

As described above, the tree pulverizer of the present invention is mounted on a truck, so that the input port has a height that allows an operator to easily input the object to be ground from the ground, and is easily moved. This makes it suitable for use in work that requires frequent relocation, such as pruning street trees. In addition, there is no need to add a traveling device for self-propelling, and the structure is simple and inexpensive.

[Brief description of the drawings]

FIG. 1 is a side view illustrating a configuration of a tree crusher according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a positional relationship between a crushing device and an inlet.

FIG. 3 is a side view showing a state where a tree crusher is mounted on a truck.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tree crusher 2 Input port 3 Crusher 4 Feeder 5 Base frame 6 Leg 7 Power package 8 Crane 9 Truck 31 Cutter knife 32 Cutter wheel 33 Hammer knife 34 Fan blade 35 Rotation axis 36 Discharge pipe 41 Feed drum 51 Suspension hook 61 Connecting pin 91 Carrier

Claims (1)

[Claims] 1. A stationary tree having an input port for charging an object to be crushed, a crushing device for crushing the object to be crushed, and a feeding device for feeding the object to be crushed input from the input port into the crushing device. A crusher, wherein an input port, a feeding device, and a crushing device are disposed on a low-floor base frame, and legs for supporting the input port at a predetermined height when installed on the ground are detachably provided on the base frame. A tree crusher characterized by the following.