JPH067018A - Working machine for weeding and brushing - Google Patents

Abstract

PURPOSE:To reduce the labor intensity of weeding and brushing operation and simultaneously prevent a working machine for the weeding and brushing from cutting an object to be protected through mistake by attaching a working machine for the weeding and brushing capable of automatically moving a bush clearing operation part such as a circular saw or a chain saw around the object to be protected such as a planted tree and bush clearing weeds, etc., to a self- propelled machine such as an excavator. CONSTITUTION:The objective working machine for weeding and brushing is obtained by installing a structural member 14 having a bush clearing operation part such as a chain saw 3 attached thereto in a rotor 13 of a rotation joint 11 equipped with a slip ring 9 and a gear 8 and attaching a hydraulic motor 6 having a gear 7 for rotating the rotor 13 to a barrel 12 of the rotation joint 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine for cutting off weeds, shrubs, bamboo grass, etc. around an object to be protected in forestry and agriculture.

[0002]

2. Description of the Related Art At present, a machine which has been put into practical use is a power brush cutter which is equipped with a brush cutter such as a circular saw and which is mounted on the body such as a shoulder type or a backpack type. For the lowering work with the power brush cutter, the brush cutter working part of the power brush cutter attached to the body is directed to the work direction with the operation handle, and the upper body is swung left and right to walk to mow weeds, shrubs, bamboo grass, etc. It is to pay.

[0003]

[Problems to be Solved by the Invention]
This is a work that requires extremely heavy labor because it is a work to be carried out under the hot sun with a heavy power brush cutter attached to the body. In addition, the work with the power brush cutter is also a work accompanied by the danger of trampling a viper lurking in the grass and cutting off the honeycomb. Furthermore, when working with a power brush cutter, the bush cutting work unit is turned to the work direction and the upper body is swung to the left or right to walk, so the protective object such as a planting tree is accidentally cut. There is a problem.

The objects of the present invention are as described below.

To reduce the labor intensity of undergrowth workers.

The undergrowth operator can avoid the danger of poisonous snakes and bees.

To prevent accidental cutting of an object to be protected such as a planting tree during the weeding operation.

[0008] It is also possible to mow undersides of branches and leaves of an object to be protected such as planted trees.

[0009]

In order to achieve the above object, the weeding work machine of the present invention is attached to a self-propelled machine such as an excavator, and the mowing work section of the work machine is planted with a rotary joint. Weeds, shrubs, etc. by moving around the object to be protected such as, or by moving the mowing work part of the working machine along a guide such as a rail around the object to be protected such as a planting tree. , Is used to mow off bamboo.

When the rotary joint and hydraulic pressure are used, hydraulic oil is sent to the hydraulic motor of the mowing work section through the rotary joint, and the electrical wiring necessary for controlling the solenoid valve is attached to the rotary joint. Connect via a brush to. A gear and a hydraulic motor are attached to the rotary joint, and the mowing work unit is moved around an object to be protected such as a planting tree to mow weeds, shrubs, bamboo grass and the like.

When the rotary joint and the electric motor are used, the electric wiring required for the control is connected to the electric motor of the mowing work section through a brush to a slip ring attached to the rotary joint. A gear and an electric motor are attached to the rotary joint, and the mowing work unit is moved around an object to be protected such as a planting tree to mow weeds, shrubs, bamboo grass and the like.

When a guide such as a rail is used, the motor is attached to a guide having a shape surrounding an object to be protected such as a planting tree so as to be self-propelled. A mowing work unit is mounted on the motor, and the mowing work unit is self-propelled around an object to be protected such as a planting tree to mow away weeds, shrubs, bamboo grass and the like.

[0013]

EXAMPLE FIG. 1 shows an example of a weeding work machine attached to an excavator and utilizing hydraulic pressure.

A hydraulic motor 7 is used to rotate a structural member 14 in which one system of hydraulic oil of three systems, which is controlled to an appropriate pressure by the main body of the excavator, is equipped with a hydraulic pipe 15 and a hydraulic hose 20 and a mowing work section is mounted. And the two systems are connected to the barrel 12 of the rotary joint 11 by hydraulic pipes 16 and 17 and hydraulic hoses 21 and 22.

2 connected to the barrel 12 of the rotary joint 11
The hydraulic oil of the system passes through the rotor 13, the hydraulic pipes 18 and 19 inside the structural member 14 and the solenoid valve 25, and the double-acting hydraulic cylinder 4 for changing the direction of the chain saw 3 by the hydraulic hose 23 and the hydraulic hose 24, respectively. , Is connected to a hydraulic motor 5 for driving the chainsaw 3.

The wiring of the solenoid valve 25 for controlling the double-acting hydraulic cylinder 4 and the hydraulic motor 5 is connected to the slip ring 9 attached to the rotor 13 of the rotary joint 11 via the brush 10.

The operation sequence of the above-mentioned undercutting work machine is as follows.

The chain saw 3 is driven by the double-acting hydraulic cylinder 4 while the chain saw 3 is driven by the hydraulic motor 5.
Change the direction of (a) to (a).

By rotating the rotor 13 of the rotary joint 11 by means of the hydraulic motor 6, the chainsaw 3 moves around the planted tree and mows weeds, shrubs, bamboo grass and the like.

After the brush cutting is completed, the chain saw 3 is stopped by the hydraulic motor 5, and the direction of the chain saw 3 is changed from (a) to (a) by the double-acting hydraulic cylinder 4.

FIG. 2 shows an embodiment of a chainsaw in which a saw bar is attached to both sides of a drive shaft.

A plate 45 and a bracket 46 are attached to a bracket 44 attached to the hydraulic motor 5.

The plate 45 includes a sober 40 and a plate 4.
7, the saw bar 41 and the plate 48 are attached to the bracket 46, respectively, and the saw chain 42 is attached.

The bracket 54 is attached by passing the bolts 51 through the long holes formed in the plate 48, the holes of the saber 41, and the bracket 46.

The bolt 52 is attached to the screw hole provided in the bracket 54 through the plate provided in the bracket 46.

By tightening the bolt 52, the tension of the saw chain 42 is adjusted.

FIG. 3 shows an embodiment of a chain saw in which a saw bar is attached to both sides of a drive shaft in different steps.

Brackets 66 and 67 are attached to a bracket 65 attached to the hydraulic motor 5.

The saw bar 60 and the plate 68 are attached to the bracket 66, and the saw chain 62 is attached.

The bracket 73 is attached by passing the bolts 51 through the long holes provided in the plate 68, the holes of the sober 60, and the long holes provided in the bracket 66.

The bolt 71 is attached to the screw hole provided in the bracket 73 through the plate provided in the bracket 66.

The saw bar 61 and the plate 69 are attached to the bracket 67, and the saw chain 63 is attached.

The bracket 76 is attached by passing the bolt 70 through the long hole provided in the plate 69, the hole of the sober 61, and the long hole provided in the bracket 67.

The bolts 74 are attached to the screw holes provided in the bracket 76 through the plate provided in the bracket 67.

The tensions of the saw chain 62 and the saw chain 63 are adjusted by tightening the bolts 71 and 74.

[0036]

The present invention has the following effects.

By attaching a work machine to a self-propelled machine such as an excavator, the worker can operate the machine without wearing anything on the body, so that the labor intensity of the worker is reduced.

Further, since the current self-propelled machine such as the excavator is fully equipped with the cabin and the heating and cooling, it is possible not only to work comfortably in the hot sun but also to avoid the danger of poisonous snakes and bees.

Furthermore, in order to automatically move the bush cutting work unit around the object to be protected such as a planting tree and to mow weeds, shrubs, bamboo grass, etc., cutting the object to be protected such as a planting tree. In addition, by changing the direction of the chainsaw with the sober attached to both sides of the drive shaft before starting work, it is possible to mow the branches and the lower side of the leaves without damaging the branches and leaves of the planting tree.

[Brief description of drawings]

FIG. 1 is a plan view (a) and a vertical sectional view (b) showing an embodiment of a weeding work machine.

FIG. 2 is a plan view (a) and a front view (b) showing an embodiment of a chain saw in which a saw bar is attached to both sides of a drive shaft.

FIG. 3 is a plan view (a) and a front view (b) showing an embodiment of a chain saw in which a saw bar is attached to both sides of a drive shaft in different steps.

[Explanation of symbols]

1, 2 Mounting part 3 Chain saw 4 Double-acting hydraulic cylinder 5, 6 Hydraulic motor 7, 8 Gear 9 Slip ring 10 Brush 11 Rotating joint 12 Barrel 13 Rotor 14 Structural member 15, 16, 17, 18, 19 Hydraulic pipe 20, 21 , 22, 23, 24 Hydraulic hose 25 Solenoid valve 26 Lubricating oil tank for chain saw 27, 28 Bearing 29 Excavator arm 30 Excavator hydraulic cylinder 31 Excavator strap 32 Excavator rod 33 Casing 40, 41, 60, 61 Sober 42, 62, 63 Saw chain 43, 64 Sprocket 44, 46, 54, 65, 66, 67, 73, 76 Bracket 45, 47, 48, 68, 69 Plate 49, 50, 51, 52, 70, 71, 74 Bolt 53 , 7 , 75 nut

Claims (4)

[Claims] 1. In a machine for cutting off weeds, shrubs, bamboo grass, etc. that inhibit the growth of planted trees, etc., the work machine is attached to a self-propelled machine such as an excavator, and the cutting machine such as a circular saw or chainsaw is cut off. Weeding, shrubs, bamboo grass, etc. around the protected object such as the planting tree are automatically moved by automatically moving the working unit around the protected object such as the planting tree. Working machine. 2. A chain saw for a lower mowing machine according to claim 1, wherein a chain saw is used for the mowing work section. 3. A chain saw for a lower mowing machine according to claim 1, wherein a chain saw is used for the mowing work section, wherein the saw bars are attached to both sides of the drive shaft in different steps. 4. The undercrop work machine according to claim 1, wherein the chain saw according to claim 2 or 3 is used in a mowing work part, wherein the mowing work machine comprises a device capable of changing the direction of the chain saw. .