JPH08246488A - Wood yarder - Google Patents

Abstract

PURPOSE: To eliminate a bitter work by a method wherein a lateral yarding work for wood cut by a yarder utilizing a hydraulic shovel is facilitated. CONSTITUTION: A first winch 20 for a control line 44, a second winch 21 for lateral yarding line 45, third winch 22 for a main line 46, and a fourth winch 23 for an endless line 47 are mounted on a hydraulic shovel 50. The lateral yarding line 45 is coupled to a moving pulley 57 engaged with a main line 46 through a fixed pulley 61 mounted on a tree 60 in a lateral direction. To collect fallen trees scattering laterally of the control line 44, a moving pulley 57 is moved to a given position by the lateral yarding line 45 and the fallen trees 62 is coupled to the moving pulley 57.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lumber collector in a forest, and more particularly to a lumber collector capable of collecting lumber and loading timber using a construction machine such as a hydraulic excavator.

[0002]

2. Description of the Related Art Conventionally, in the field of forestry, hydraulic excavators have been introduced to carry out civil engineering works such as construction of forest roads, while a method has been employed in which a winch is mounted on a hydraulic excavator and used for collecting work. As a method therefor, there is a method in which one winch pulls down nearby felled wood, and a method in which two or three winches are used to pull up fallen timber at a remote place and pull it in.

The applicant has filed Japanese Patent Application No. 4-
No. 25811, Japanese Patent Application No. 4-57682, Japanese Patent Application No. 6-1
No. 30875 is filed.

According to Japanese Patent Application No. 4-25811, a winch mounted on a hydraulic excavator is provided with a main drum and an endless drum, the hydraulic excavator is fixed on one of the collecting bases, and a fixed pulley is installed on the other base. An overhead wire-type logging method for transporting lumber using a fixed pulley, a control wire, an endless wire, and a moving pulley.

In Japanese Patent Application No. 4-57682, a pulley is hung on the center line of a working machine arm of a hydraulic excavator, and a winch is mounted diagonally in front of the upper swing body (on the side opposite to the cab). However, the position of the pulley and winch is set within the fleet angle.

[0006] Japanese Patent Application No. 6-130875 discloses a forestry work vehicle having a winch mounted on a hydraulic excavator, an earthworking work machine including a first boom, an arm and a bucket for civil works, and a second work for timber collecting work. It is equipped with both a boom and a winch collecting machine.

However, in any of the above-mentioned prior patent applications, there are two winches (two drums), and the gathering of the fallen wood below the control line is possible, but the pulling and conveying of the felled wood is possible. It is the actual situation that the fallen timber that has fallen off is pulled up by moving the hydraulic excavator itself or by relying on human power, which may be difficult depending on the terrain.

In order to solve these problems, three units (3
There is a method of using a winch of (drum). FIG. 5 is a diagram showing a collecting method using three winches (3 drums). A hydraulic excavator 70 is arranged on one side, and the hydraulic excavator 70 has a first main drum 71 and a second main. A winch including a drum 72 and an endless drum 73 is mounted. Fixed pulley 75 on tree 74 on the other side
The control line 76 connected to the first main drum 71 is connected via the fixed pulley 75, and the endless pulley 77 attached to the end of the fixed main pulley 71 is engaged with the endless line 78 connected to the endless drum 73. There is.
A carriage 80 is attached to the endless line 78, and the A pulley 8 attached to the carriage 80.
Reference numeral 1 engages with the endless line 78 to suspend the carriage 80. The main line 84 connected to the second main drum 72 has its tip fixed to the tree 74 via a B pulley 82 and a C pulley 83 attached to a carriage 80. A movable pulley 85 is engaged with a main line 84 between the B pulley 82 and the C pulley 83, and is connected to a fallen lumber 86 to be collected.

Next, a conventional collecting operation will be described. (1) The control line 76 is wound by the first main drum 71 and the endless line 78 is pulled up. (2) Loosen the second main drum 72, and the operator moves the movable pulley 85 to the fallen lumber 86 in the lateral direction, not directly below the control line 76, and connects the fallen lumber 86. (3) The main line 84 is wound by the second main drum 72, and the fallen wood 86 is moved to just below the control line 76 (takeover work). (4) Endless line 73 by endless drum 73
8 is rolled up and the fallen wood 86 is drawn. By the above work, it is possible to pull down the fallen timbers which are not directly below the control line 76 and which are scattered in the lateral direction.

In addition to the above, there are applications for winches and collecting machines, such as Japanese Patent Laid-Open No. 5-186190 and Japanese Utility Model Publication No. 2-3514, the former relating to a winch control device and the latter a stationary type collecting machine. It concerns timber machines.

[0011]

However, in the structure of the three-drum type yarding machine shown in FIG. 5, the horizontal picking work is possible as described above, but the worker is not a timber scattered laterally. There was a problem that the heavy moving pulley had to be moved to this place, which was a difficult task.

The present invention has been made in view of the above-mentioned problems, and it is possible to move a movable pulley without manual labor and to collect a hydraulic excavator that can easily carry out a horizontal take-up operation. The purpose is to provide lumber.

[0013]

In order to achieve the above object, the lumber logging machine according to the present invention has a lumber collector having a winch at one of the logging bases and a pulley installed at the other base. A timber logging machine in which a wire rope is wound between the pulley and the winch and the felled timber is transferred to a logging base via the wire rope, the logging machine being a lower traveling body 1 The upper revolving structure 2 is provided on the upper revolving structure 2.
A work machine 10 including a boom 11 and an arm 13 on the upper side.
A first winch 20 and a second winch 21 arranged at the front of the upper swing body 2 and a third winch 22 and a fourth winch 2 arranged at the rear of the upper swing body 2.
3 and a first pulley group 31, 32, 33 for the third winch 22 and a fourth winch 23 mounted above the boom 11 and the first pulley group mounted below the boom 11. A second sheave group 35, 36, 37 for the third winch 22 and the fourth winch 23 and a third sheave for the first winch 20 and the second winch 21 mounted below the tip of the arm 13. Group 41,4
No. 2, 43 are attached.

In the above structure, the third winch 22 and the fourth winch 23 attached above the boom 11.
The first pulley groups 31, 32, 33 and the second pulley groups 35, 36, 37 for use are attached to the left and right sides of the boom 11 separately at predetermined intervals and are attached to the tip of the arm 13. The first winch 20 attached below the
And a third pulley group 41 for the second winch 21,
42 and 43 are the second pulley groups 35, 36 and 37
It is arranged between the intervals.

In the above structure, the first pulley groups 31, 32, 33 are located above the middle of the boom 11 and the second pulley groups 35, 36, 37.
Is a bracket 30, below the tip of the boom 11,
It is attached via 34.

Further, in the above structure, the working machine 10
The grapple 15 which is rotatable is attached.

[0017]

According to the above construction, the movable pulley can be laterally moved by a mechanical force by utilizing one winch out of the four winches. As a result, the worker does not have to perform the troublesome work of moving the movable pulley.

Further, by improving the mounting positions of the first pulley group, the second pulley group, and the third pulley group, it is possible to collect data without interfering with a plurality of wire ropes, and to collect each wire rope. You can load timber with each line loosened.

Further, when servicing the engine and hydraulic equipment, the winch does not get in the way and the maintainability is good.

Further, since the winch is arranged at the rear part of the upper swing body, it can also serve as a counter weight, and the total weight of the logging machine can be reduced.

Further, one hydraulic excavator can perform both the gathering work and the loading work of timber, and the number of working vehicles can be reduced.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a collecting machine using a hydraulic excavator according to the present invention will be described in detail below with reference to FIGS.

FIG. 1 is a side view of the collecting machine, and FIG. 2 is a plan view. First, the logging machine is provided with an upper revolving structure 2 above the lower traveling structure 1, an engine cab 3 for mounting an engine on the upper revolving structure 2, and a cab 4 for mounting hydraulic equipment.
An operator cabin 5 is provided. A boom 11 and a boom cylinder 12 are attached to a bracket (not shown) at the front of the upper swing body 2. The work machine 10 includes a boom 11 driven by a boom cylinder 12, an arm 13 driven by an arm cylinder 14, and a bucket cylinder 1.
It is composed of a rotatable grapple 15 driven by 6.

A first winch 20 and a second winch 21 are vertically mounted in the lateral direction of the boom 11 in front of the upper swing body 2 (on the side opposite to the cab 5). A third winch 22 and a fourth winch 23 are attached to the rear of the upper swing body 2 substantially symmetrically with respect to the center of the vehicle body, and also serve as a counterweight. The fourth winch 23 has an endless drum. These winches 20, 21, 22, 23 are provided with a first winch 20 and a second winch 21 at the front part of the upper swing body 2 so as not to disturb the maintenance of the engine and hydraulic equipment. Third winch 22 and fourth on rear
A winch 23 is provided.

The bracket 30 attached to the upper portion of the boom 11 at approximately the middle thereof includes a first pulley group (first pulley 3).
The first pulley 32 and the third pulley 33 are provided. ) Is installed and the second pulley 32 in this first pulley group is mounted.
The third pulley 33 and the third pulley 33 are separated by a predetermined distance a. The second pulley group (the fourth pulley 35, the fifth pulley 36, the sixth pulley 36) is attached to the bracket 34 mounted below the tip of the boom 11.
It consists of a pulley 37. ) Is mounted, and in this second pulley group, the fifth pulley 36 and the sixth pulley 37 are separated by a predetermined distance b. The bracket 40 mounted below the tip of the arm 13 includes a third pulley group (7th pulley group).
It comprises a pulley 41, an eighth pulley 42, and a ninth pulley 43. ) Is mounted, and the distance c between the seventh pulley 41 and the ninth pulley 43 in this second pulley group is set to be narrower than the distance a and the distance b.

The control line 44 driven by the first winch 20 is engaged with the seventh pulley 41. Second
The take-off line 45 driven by the winch 21 is the ninth
It is engaged with the pulley 43. When the endless drum is mounted on the second winch 21, the eighth pulley 42 and the ninth pulley 43 are used. The main line 46 driven by the third winch 22 is engaged with the third pulley 33 and the sixth pulley 37. The endless line 47 driven by the fourth winch 23 includes a first pulley 31, a second pulley 32, and a fourth pulley 32.
The pulley 35 and the fifth pulley 36 are engaged.

As shown in FIG. 2, the distance c between the seventh pulley 41 and the ninth pulley 43 is the distance a between the second pulley 32 and the third pulley 33, and the distance between the fifth pulley 36 and the sixth pulley 37. Since it is set to be narrower than b, interference between lines does not occur.

Next, a method for collecting material according to the present invention will be described with reference to FIG. Winch 2 at one of the logging bases
Stop the collecting machine 50 having 0, 21, 22, 23,
A first fixed pulley 52 is installed on the other tree 51, and a wire rope is wound between the pulley 52 and the winches 20, 21, 22, and 23, and the felled timber is transferred to the collecting base via the wire rope. It is something that is done. First, the control line 44 is engaged with the endless pulley 53 attached to the end of the control line 44 via the first fixed pulley 52 and the endless line 47. A carriage 54 is mounted on the endless line 47, and a pair of carriage pulleys 55, 55 mounted on the upper side of the carriage 54 engages with the endless line 47 and suspends the carriage 54.

Below the carriage 54, a pair of mainline pulleys 56, 56 are mounted, one end of which is the tree 5
The main line 46 fixed to 1 is engaged, and a movable pulley 57 that engages with the main line 46 is provided between the main line pulleys 56, 56. Trees 6 laterally separated from the control line 44
A second fixed pulley 61 is attached to the steering wheel 0, and the take-over line 45 is connected to the movable pulley 57 via the second fixed pulley 61. A fallen lumber 62 to be collected is connected to the movable pulley 57.

Collection of timber is performed by the following procedure. (1) The first winch 20 is driven to wind the control line 44, and the endless line 47 is pulled up. (2) Main line 4 with the third winch 22 free
6 is loosened, the second winch 21 is actuated, the take-up line 45 is wound up, and the movable pulley 57 is laid down in the lateral direction.
Move to position 2. (3) The worker connects the fallen lumber 62 to the moving pulley 57. (4) The winch line 45 is loosened by freeing the second winch, and the third winch 22 is driven to drive the main line 46.
And the fallen wood 62 is moved to below the line of the control line 44. (5) The fourth winch 23 is driven to wind up the endless line 47, and the fallen lumber 62 is drawn to a predetermined position.

FIG. 4 shows a situation in which the lumber 63 is grasped by the grapple 15 attached to the tip of the arm 13 of the lumber collector 50 and is loaded on the truck 64. By loosening the lines 44, 45, 46, 47 as shown in the figure, the timber loading work can be performed without any trouble.
That is, one hydraulic excavator can perform both the work of collecting wood and the work of loading timber.

[0032]

As described above, according to the timber collecting machine of the present invention, the movable pulley can be moved to the position of the timber in the lateral direction by mechanical force when the timber is horizontally taken, and the timber is manually operated. The troublesome work is eliminated, and the collecting operation can be safely performed.

Further, by improving the mounting positions of the first pulley group, the second pulley group, and the third pulley group, it is possible to collect data without interfering with the plurality of wire ropes, and to collect each wire rope. You can load timber with each line loosened.

Further, when servicing the engine and hydraulic equipment, the winch does not get in the way and the maintainability is good.

Further, since the winch is arranged at the rear part of the upper swing body, it can also serve as a counter weight, and the total weight of the logging machine can be reduced.

Further, both the collecting work and the loading work of timber can be performed by one hydraulic excavator, and the number of working vehicles can be reduced and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a collecting machine of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is an explanatory diagram of a collecting operation using the collecting machine of the present invention.

FIG. 4 is an explanatory view of a loading operation using the collecting machine of the present invention.

FIG. 5 is an explanatory diagram of a collecting operation using a conventional 3-drum type collecting machine.

[Explanation of symbols]

1 ... Lower traveling body, 2 ... Upper revolving structure, 10 ... Working machine, 11 ... Boom, 13 ... Arm, 15 ... Grapple, 20 ... ..First winch, 21 ... second winch,
22 ... 3rd winch, 23 ... 4th winch, 30,
34, 40 ... Bracket, 31 ... First pulley, 32 ...
..Second pulley, 33 .... third pulley, 35 ... fourth pulley, 3
6 ... 5th pulley, 37 ... 6th pulley, 41 ... 7th pulley, 42 ... 8th pulley, 43 ... 9th pulley, 44 ... Control line, 45 ... ・ Horizontal line, 46 ・ ・ ・ ・ Main line, 47 ・ ・ ・ ・ Endless line, 50 ・ ・ ・ ・ Gathering machine.

Claims (4)

[Claims] 1. A lumber collector having a winch is stopped at one of the lumbering bases, a pulley is installed at the other base, and a wire rope is wound between the pulley and the winch to cut down the lumber. In the timber collecting machine that is transferred to the collecting base via the, the collecting machine has an upper swing body (2) on the lower traveling body (1), and the upper swing body (2) is mounted on the upper swing body (2). boom
(11), a working machine (10) including an arm (13), a first winch (20) and a second winch (21) arranged in front of the upper revolving structure (2), and the upper part A third winch (22) and a fourth winch (23) arranged at the rear of the swing structure (2), and the third winch (22) and the fourth winch (22) attached above the boom (11). First pulley group for winches (23)
(31, 32, 33) and the third part attached below the boom (11).
The second sheave group (35, 36, 37) for the winch (22) and the fourth winch (23), and the first winch (20) and the first winch (20) and the first winch (20) attached below the tip of the arm (13). 2 winches (21)
A timber logging machine characterized by having a third pulley group (41, 42, 43) attached to it. 2. A third mounted above the boom (11).
First pulley group (31,32,33) and second pulley group (35,36,37) for winch (22) and fourth winch (23)
Are attached to the left and right sides of the boom (11) separately at predetermined intervals, and are attached below the tip of the arm (13) to the first winch (20) and the second winch (20). 21) the third pulley group (41, 42, 43) is the second pulley group
The timber logging machine according to claim 1, wherein the lumber collecting machines are arranged at intervals of (35, 36, 37). 3. The first sheave group (31, 32, 33) is above the middle of the boom (11) and the second sheave group (35, 36, 37) is above the boom (11). The timber logging machine according to claim 1, wherein the timber collecting machines are attached to the lower portions of the tips through brackets (30, 34), respectively. 4. A grapple that is rotatable about the working machine (10).
The timber logging machine according to claim 1, wherein (15) is attached.