KR101941577B1 - Logging apparatus for excavator - Google Patents

Abstract

The present invention relates to a logging apparatus for an excavator, which is capable of gripping, fixing and cutting a tree while being mounted on an excavator and moving and loading the cut logs, and has a cutting saw blade protruding only when the tree is needed to be cut. According to an embodiment of the present invention, the logging apparatus for an excavator comprises: a head (100) fixated to an operation board of an excavator to be able to rotate; a lower gripper unit (200) formed on a lower portion of the head (100) in order to support one side of a tree; an upper gripper unit (300) formed on the head (100) to be able to rotate and gripping the tree by compressing the other side of the tree supported by the lower gripper unit (200); a cutting member (400) formed on the head (100) to cut the tree; a cutting movement member (500) formed on the head (100) to move the cutting member (400) in forward and then backward directions so that the tree gripped by the lower gripper unit (200) and the upper gripper unit (300) is cut; and a cover member (600) formed on the head (100) to store the cutting member (400) moved rearward by the cutting movement member (500) so as to prevent the cutting member (400) from being exposed to the outside.

Description

[0001] The present invention relates to a logging apparatus for excavators,

The present invention can cut a tree in a state in which the tree is held and fixed in a state where it is mounted on an excavator, the cut wood can be moved and loaded, and the cut saw can be used for an excavator To a cutting apparatus.

In general, forestry is a typical 3D industry, and it is difficult to secure the labor force of the forestry industry due to the decline in the agricultural population and the aging population. Therefore, it is urgently necessary to reduce the labor burden and the production cost. In addition, it will become more difficult to obtain good quality labor in mountainous areas, and it will be very difficult to carry out forestry work depending on manpower.

In forestry, the price of wood is stagnant, and in the case of forest-oriented forest work, the share of labor costs in the production cost of wood is rapidly increasing. Moreover, since the consumption of wood is expected to increase further in the future, the production and supply of wood will greatly increase in order to meet the demand for timber. Therefore, in order to increase the self-sufficiency rate of wood, thinning work such as thinning is carried out more thoroughly.

However, there is a problem that a safety accident may occur because a worker uses a chainsaw in forest work.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Utility Model Registration No. 20-0355206 (Jun. 25, 2004) in the Korean Intellectual Property Office.

A problem to be solved by the present invention is to provide an excavator capable of cutting a tree while grasping and fixing the tree in a state of being mounted on an excavator, The present invention provides a cutting apparatus for an excavator.

The cutting apparatus for an excavator according to an embodiment of the present invention includes a head 100 rotatably fixed to an operation table of an excavator and a lower clamp unit 200 formed at a lower portion of the head 100 and supporting one side of the tree An upper clamp unit 300 rotatably provided on the head 100 to press and grip the other side of the wood supported by the lower clamp unit 200, The cutting member 400 is moved forward and backward so as to cut the wood gripped by the lower and upper grippers 200 and 300 in a state where the head 100 is provided with a cutting member 400, And a cover member 600 covering the cutting member 400 so that the cutting member 400 formed in the head 100 and retracted by the cutting and moving member 500 is received and is not exposed to the outside, .

Preferably, the head 100 includes a head case 110 having an inner space opened frontward so that the upper clamp unit 300 is embedded in a protruded state, and a head case 110 formed on the upper portion of the head case 110, The head case 110 includes an upper plate 111 provided at an upper portion thereof so as to be connected to the operation table, and a lower plate 111 formed at both sides of the upper plate 111 A lower plate 113 formed on the rear side of the upper plate 111 and the side plate 112 and a lower plate 113 closing the lower portion so as to open the upper portion from the front of the upper plate 111 and the side plate 112 ). ≪ / RTI >

Preferably, the side plate 112 is formed with a lower tooth 115 connected to the lower clamping unit 200 to support the wood gripped by the lower clamping unit 200 and the upper clamping unit 300 .

Preferably, the side plate 112 is formed with a rectangular guide hole 116 for linear movement of the cutting member 400.

The upper clamp unit 300 protrudes from the upper portion of the head 100 while the lower clamp unit 200 is disposed between the lower clamp units 200 Is located in the second position.

The cutting member 400 includes a cutting rotary part 410 provided in the head 100 to generate a rotational force and a cutting saw 420 rotated by the rotational force of the cutting rotary part 410 to cut the wood The cutting and moving member 500 includes a cylinder 510 in which the cylinder shaft is connected to the cutting member 400 while being fixed to the head 100 and a cutting member 500 that is moved as the cylinder axis of the cylinder 510 is expanded and contracted 400 is fixed to the head 100 and the other end is fixed to the cutting rotary part 410 of the cutting member 400 so that the cutting member 400 is moved at a high speed by the load of the cutting member 400 And a constant-speed holding unit 530 for maintaining constant-speed movement while preventing it.

The constant velocity holding unit 530 is constituted by a gas spring or a compression spring for resiliently supporting the load of the cutting member 400 so that one end is fixed to the head 100 and the other end is fixed to a cutting rotary part (410).

Preferably, the cover member 600 includes a plurality of cover fixing portions 610 which are formed so as to be dispersed upward, rearward, and downward while projecting laterally from the head 100, and a plurality of cover fixing portions 610 fixed to the cover fixing portions 610, And a cover plate (620) covering the base plate (400).

The cover fixing portion 610 preferably includes a cover plate 620 and a cover bolt 611 penetrating the head 100 and a cover bolt 611 screwed to the cover bolt 611 to be fixed to the outside of the head A cover inner nut 613 which is screwed to the cover bolt 611 while being spaced apart from the head outer nut 612 and supported inside the cover plate 620; And a cover outer nut 614 supported on the outer side of the cover plate 620.

The present invention can be easily carried out by moving freely in a forest area together with an excavator while being mounted on an excavator, cutting a tree in a state in which the tree is gripped and fixed, so that the cutting operation of the tree can be accurately performed , The cut wood can be instantly moved and loaded, and the cutting saw can be protruded only when cutting the wood, which is advantageous in preventing a safety accident.

In addition, since the logging operation is performed using an excavator, the risk is reduced as compared with the operation of cutting the manpower, and there is an economical effect.

Also, since the head is used by being applied to an excavator, the forest area is freely moved together with the excavator, so that the logging operation can be easily performed.

In addition, since the head is rotated on the operation table of the excavator, there is an advantage that the cutting operation can be performed at various angles.

In addition, since the cutting member is accommodated in the cover member provided on the side of the head, it is not exposed to the outside, and can be protected without interfering with the outside.

In addition, when the lower and upper clamps grip the wood, the cutting saw of the cutting member is perpendicular to the gripped wood, so that the wood can be cut correctly.

In addition, since the overall weight is about 500 kg, maintenance and price are advantageous.

1 is a perspective view showing a cutting apparatus for an excavator according to an embodiment of the present invention;
FIG. 2 is a perspective view showing a state in which the upper clamp is operated in the present invention. FIG.
3 is a side view of a side view of the present invention.
4 (a) and 4 (b) illustrate the operation of the upper gripper according to the present invention.
5 is a perspective view showing the cutting saw of the present invention in a backward state;
6 is a perspective view showing a cutting saw of the present invention being advanced.
7 is a view showing a state in which the cutting saw of the present invention is reversed.
8 is a view showing a state in which the cutting saw of the present invention is advanced.
9 is a view showing an elevated state of the upper clamping unit of the present invention.
10 is a view showing a state in which the upper clamp unit of the present invention presses a tree.
11 is a view showing a state in which a tree is cut by a cutting saw gripped by the upper and lower grippers of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 11, the present invention includes a head 100 that is rotatably fixed to an operation table of an excavator, and a lower clamp unit 200 An upper clamp unit 300 rotatably provided on the head 100 to press and grip the other side of the wood supported by the lower clamp unit 200, The cutting member 400 is moved forward and backward so as to cut the wood gripped by the lower and upper grippers 200 and 300 in a state where the head 100 is provided with a cutting member 400, And a cover member 600 covering the cutting member 400 so that the cutting member 400 formed in the head 100 and retracted by the cutting and moving member 500 is received and is not exposed to the outside, .

First, an excavator can move freely around a rugged mountainous area using an infinite orbit. The operation panel is installed to be horizontally rotated on the excavator and can be operated to be bent in the vertical direction. The operation unit is provided with a rotating device that can rotate the head 100 by using hydraulic pressure. Accordingly, the head 100 is rotated at an angle of about 90 degrees from the operation table by the rotating device to form a vertical direction or a horizontal direction.

1 to 3, the head 100 includes a head case 110 in which an inner space is opened forward so that the upper clamping unit 300 is embedded in a protruded state, And a head rotating part 120 rotatably connected to the operating rod of the excavator and rotated by external pressure.

The head case 110 includes a top plate 111 provided at an upper portion thereof so as to be connected to the operation table, a side plate 112 formed at both sides of the top plate 111, And a lower plate 114 closing the lower portion so that the upper portion of the upper plate 111 and the side plate 112 is opened from the front.

Here, the upper plate 111, the side plate 112, and the thick plate 113 protect components provided in the inner space.

A bottom plate may be installed on the bottom of the head case 110.

A lower tooth 115 connected to the lower gripper 200 is formed on the side plate 112. The lower teeth 115 are vertically formed on the side plate 112 so as to be vertically connected to each other while being vertically pointed and supported by the upper gripper 300 so that the wood is not slipped and supported It can be maintained firmly. Furthermore, it can be easily supported on the outer circumferential surface of a large-diameter tree. In addition, the overall gripping force by the lower clamping unit 200 and the upper clamping unit 300 can be increased.

In addition, a rectangular guide hole 116 is formed in the side plate 112 for linear movement of the cutting member 400. That is, the movement is guided in such a state that the shaft coupled to the cutting saw 420, which will be described later, passes through the guide hole 116.

Since the upper portion of the head case 110 is opened by the lower plate 114, the upper clamp unit 300 installed in the inner space can be protruded to the outside.

The lower plate 114 prevents the branches of the tree held by the lower and upper clamps 200 and 300 from penetrating into the inner space of the head 100 as well as the outside of the tree .

The operation unit connection portion 120 is constituted by a rotation shaft rotatably connected to the operation console. Therefore, the head 100 is rotated about the rotation axis by the operation of the rotation device provided on the operation table.

Here, when the head 100 is rotated to be in a horizontal state, the lower clamping unit 200 and the upper clamping unit 300 grasp the wood standing on the ground, so that the cutting member 400 can cut the standing wood . When the head 100 is rotated to be in a vertical state, the lumber laid on the lower and upper clamps 200 and 300 is grasped so that the cutting member 400 can cut the laid wood.

The lower clamping unit 200 is formed on both sides of the lower portion of the head 100 while having a plurality of sharpened ends. Thus, the lower gripper portions 200 support both sides of the lower portion of the tree, so that the upper gripper portion 300 can press the middle of the wood between the lower gripper portions 200.

The upper portion of the lower gripper 200 is formed to be concave so as to increase the portion of the lower gripper 200 which is in contact with the outer circumferential surface of the wood. That is, the outer circumferential surface of the rounded wood can be evenly supported on the concave outer circumferential surface.

3 and 4, the upper clamping unit 300 includes a clamping body 310 to which the head 100 is rotatably fixed, a clamping body 310 fixed to the head 100, And a tongue operation unit 320 for rotating and operating the tongue.

The clamping body 310 has one end fixed to the head 100 through a hinge and the other end bent to be sharp and a plurality of upper teeth 311 are formed. The upper teeth 311 may be pointed and supported on the outside of the tree.

The upper clamping unit 300 protrudes from the upper part of the head 100 and is positioned between the lower clamping units 200 so that when the upper clamping unit 300 presses the upper part of the wood, Respectively. That is, since the tree is supported by three portions, the gripped state can be stably maintained.

5 to 8, the cutting member 400 includes a cutting rotation part 410 provided in the head 100 to generate a rotational force, and a cutting part 400 which is rotated by the rotational force of the cutting rotation part 410 to cut the wood And includes a cutting saw 420.

The cutting rotation part 410 may be constructed of a motor, and when the motor is driven, the cutting rotation part 410 is rotated.

The cut rotary section 410 includes a base plate 411, a drive motor 412 mounted on the base plate 411, a drive pulley 413 axially coupled to the drive motor 412, a drive pulley 413 A driven pulley 414 fixed to the base plate 411 so as to idle while being spaced apart from the driving pulley 413 and the driven pulley 414 and axially coupled to the cutting saw 420, 415).

If the diameter of the driven pulley 414 is smaller than that of the drive pulley 413, the rotational speed of the driven pulley 414 is increased, so that the cutting saw 420 can be rotated at a high speed. That is, the cutting saw 420 rotated at a high speed can easily cut the wood.

When the driving pulley 413 is rotated by the driving force generated by the driving motor 412, the driven pulley 414 is rotated by winding the belt 415 so that the cutting saw 420, together with the driven pulley 414, Can be rotated.

The cutting saw 420 is formed in the form of a disk, and teeth are formed along the circumference thereof and are axially coupled to the driven pulley 414 so as to rotate at high speed to cut the wood.

The cutting and moving member 500 includes a cylinder 510 to which a cylinder shaft is connected to the cutting member 400 while being fixed to the head 100 and a cutting member 400 to be moved as the cylinder axis of the cylinder 510 is expanded and contracted And a constant speed holding unit 530 for maintaining constant speed movement while preventing high speed movement due to the load of the cutting member 400. [

The cylinder shaft of the cylinder 510 is connected to the cutting rotation part 410 of the cutting member 400 so that the cutting member 400 is retracted when the cylinder shaft is protruded and extended. When the cylinder shaft is inserted and reduced, ) Is advanced.

The guide portion 520 includes a guide shaft 521 fixed to the head 100 and a guide block 522 guided along the guide shaft 521 while the cutting member 400 is fixed.

The guide shaft 521 is fixed to the head 100 at both ends and the guide block 522 is movably coupled to the guide shaft 521 while being fixed to the cut rotary part 410 of the cutting member 400.

Therefore, since the guide block 522 is moved linearly along the guide shaft 521, the cutting member 400 can be moved in a straight line.

The constant velocity holding unit 530 is composed of a gas spring or a compression spring to elastically support the load of the cutting member 400 and has one end fixed to the head 100 and the other end fixed to the cut rotary part 410 of the cutting member 400 . Therefore, even if the load of the cutting member 400 is increased when the cylinder 510 is tilted toward the ground in the process of rotating the head 100, the cylinder shaft in the cylinder 510 It can be stretched at normal speed without sudden stretching.

For example, when the cylinder axis of the cylinder 510 is stretched at a speed higher than the normal speed, the cutting saw 420 of the cutting member 400 may not be able to accurately cut the wood, . Therefore, even if the load of the cutting member 400 is increased, the cylinder shaft is not suddenly extended from the cylinder 510 by the constant-speed holding portion 530, so that the cutting saw 420 of the cutting member 400 is rotated at a normal speed When the cylinder axis of the cylinder 510 is extended at a normal speed in the rotated state, the wood can be accurately cut.

The cover member 600

A plurality of cover fixing portions 610 which are formed so as to be laterally projected from the head 100 and are dispersed upwardly, rearwardly and downwardly,

And a cover plate 620 fixed to the cover fixing portions 610 to cover the cutting member 400. [

The cover fixing portion 610

A cover bolt 611 passing through the cover plate 620 and the head 100,

A head outer nut 612 screwed to the cover bolt 611 and supported on the outer side of the head 100,

A cover inner nut 613 which is screwed to the cover bolt 611 while being separated from the head outer nut 612 and supported inside the cover plate 620,

And a cover outer nut 614 which is screwed to the cover bolt 611 and supported on the outside of the cover plate 620.

The cover bolt 611 penetrates the side plate 112 of the head 100 and the head outer nut 612 and the cover inner nut 613 are screwed in order so that they are wider than the thickness of the cutting saw 420 Spaced apart. In this state, the cover bolt 611 passes through the cover plate 620 and the cover outer nut 614 is screwed. Thereby, the cover plate 620 can be fixed firmly with the head 100 separated.

At this time, a receiving space may be formed between the cover plate 620 and the side plate 112 of the head 100 so that the cutting saw 420 of the cutting member 400 is accommodated without being exposed to the outside.

The cover fixing portions 610 are installed above, behind, and below the head 100 to open the receiving space forward of the head 100. Thereby, the cutting member 400 can be reciprocated forwardly of the head 100 without interfering with the cover fixing portions 610. That is, the tree can be cut by the cutting member 400 which is moved forward.

Since the cover plate 620 does not interfere with the outside even when the cutting saw 420 is rotated in a state covering the cutting saw 420 to be received, safety can be assured.

As shown in FIG. 9, in a state in which the upper clamp unit 300 is rotated upward, the upper clamp unit 300 is rotated downward, as shown in FIG. 10, (200). As shown in Fig. 11, the cutting saw 420 of the cutting member 400 protrudes from the cover plate 620 to cut the wood.

Here, in a state in which the cutting saw 420 is not protruded from the cover plate 620, the lower clamp unit 200 and the upper clamp unit 300 can be moved to another position while holding the wood.

As described above, according to the present invention, it is possible to cut a tree in a state where the tree is held and fixed in a state where it is mounted on an excavator, the cut wood can be moved and loaded, and the cut saw can protrude only when cutting a tree It is a very useful invention that can be widely applied to excavator excavators.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is to be understood, therefore, that the embodiments described above are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, All changes or modifications that come within the scope of the equivalent concept are to be construed as being included within the scope of the present invention.

100: Head 110: Head case
111: top plate 112: side plate
113: Plate 114: Lower plate
115: lower projection 116: guide hole
120: head rotating part 200: lower grip part
300: upper clamping unit 310: clamping body
311: Upper projection 320: Tongue operation part
400: cutting member
410: Cutting and rotating section 411: Base plate
412: drive motor 413: drive pulley
414: driven pulley 415: belt
420: cutting saw 500: cutting moving member
510: cylinder 520:
521: guide shaft 522: guide block
530: Constant-speed maintaining portion 600: Cover member
610: Cover fixing part 611: Cover bolt
612: Head outer nut 613: Cover inner nut
614: nut outside the cover 620: cover plate

Claims (9)

A head 100 rotatably fixed to a manipulation table of an excavator,
A lower gripper 200 formed at a lower portion of the head 100 to support one side of the wood,
An upper clamp unit 300 rotatably provided on the head 100 to press and hold the other side of the wood supported by the lower clamp unit 200,
A cutting member 400 for cutting the wood in a state where the head 100 is provided,
A cutting member 500 for advancing and retracting the cutting member 400 so as to cut the wood gripped by the lower and upper clamps 200 and 300 in a state where the head 100 is provided,
And a cover member (600) covering the cutting member (400) so that the cutting member (400) formed on the head (100) is retracted by the cutting and moving member (500)
The cutting member 400
A cutting rotation part 410 provided on the head 100 to generate rotational force,
And a cutting saw 420 which is rotated by the rotational force of the cutting rotary part 410 to cut the wood,
The cutting-moving member 500
A cylinder 510 fixed to the head 100 and having a cylinder shaft connected to the cutting member 400,
A guide portion 520 for guiding the cutting member 400 to be moved as the cylinder axis of the cylinder 510 is expanded and contracted,
A constant speed holding portion 530 which is fixed to the head 100 at one end and fixed to the cut rotary portion 410 of the cutting member 400 so as to maintain the constant speed while preventing high speed movement due to the load of the cutting member 400 Wherein the excavator includes a plurality of excavators.
The head according to claim 1, wherein the head (100)
A head case 110 in which an inner space is opened forward so that the upper clamping unit 300 is embedded in a protruded state,
And a head rotating part 120 formed on an upper part of the head case 110 and rotatably connected to an operating rod of an excavator and rotated by an external pressure,
The head case 110
An upper plate 111 provided on the upper part so as to be connected to the operation table,
A side plate 112 formed on both sides of the upper plate 111,
A thick plate 113 formed at the rear of the upper plate 111 and the side plates 112,
And a lower plate (114) for closing the lower portion of the upper plate (111) and the side plate (112) so as to open the upper portion from the front.
The side plate 112 is formed with a lower tooth 115 connected to the lower gripper 200 so that the gripped pieces of the lower gripper 200 and the upper gripper 300 are supported Wherein the excavating machine is provided with an excavator.
The excavator according to claim 2, wherein the side plate (112) is provided with a rectangular guide hole (116) for linear movement of the cutting member (400).
The method according to claim 1,
The lower clamping unit 200 is formed on both sides of the lower portion of the head 100,
Wherein the upper gripper part (300) protrudes from the upper part of the head (100) and is positioned between the lower gripper parts (200).
delete The constant velocity holding unit 530 includes a gas spring or a compression spring for resiliently supporting a load of the cutting member 400 and has one end fixed to the head 100 and the other end fixed to the cutting member 400 And is fixed to the cutting rotary part (410).
The cover member (600) according to claim 1, wherein the cover member
A plurality of cover fixing portions 610 which are formed so as to be laterally projected from the head 100 and are dispersed upwardly, rearwardly and downwardly,
And a cover plate (620) fixed to the cover fixing portions (610) and covering the cutting member (400).
The cover according to claim 8, wherein the cover fixing portion (610)
A cover bolt 611 passing through the cover plate 620 and the head 100,
A head outer nut 612 screwed to the cover bolt 611 and supported on the outer side of the head 100,
A cover inner nut 613 which is screwed to the cover bolt 611 while being separated from the head outer nut 612 and supported inside the cover plate 620,
And a cover outer nut (614) screwed to the cover bolt (611) and supported on the outer side of the cover plate (620).

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