KR100972741B1 - Rotary pruning shears for an excator - Google Patents

Rotary pruning shears for an excator Download PDF

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Publication number
KR100972741B1
KR100972741B1 KR1020100035366A KR20100035366A KR100972741B1 KR 100972741 B1 KR100972741 B1 KR 100972741B1 KR 1020100035366 A KR1020100035366 A KR 1020100035366A KR 20100035366 A KR20100035366 A KR 20100035366A KR 100972741 B1 KR100972741 B1 KR 100972741B1
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KR
South Korea
Prior art keywords
rotating
pruning shears
rotary
cutting blade
excavator
Prior art date
Application number
KR1020100035366A
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Korean (ko)
Inventor
안현자
정수동
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안현자
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Priority to KR1020100035366A priority Critical patent/KR100972741B1/en
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Publication of KR100972741B1 publication Critical patent/KR100972741B1/en

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/08—Felling trees
    • A01G23/083—Feller-delimbers
    • A01G23/085—Feller-delimbers having the shearing head mounted on a first boom and the delimbing head mounted on a second boom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B15/00—Hand-held shears with motor-driven blades
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Scissors And Nippers (AREA)
  • Shovels (AREA)

Abstract

The present invention relates to a rotary pruning shears for an excavator, and more particularly, to cut a tree branch, such as landscape forest or roadside trees, to perform a quick and accurate work through the rotary pruning shears using an excavator, the cut wood The present invention relates to a rotary pruning shear for an excavator that prevents a branch from falling to the ground to prevent a safety accident.
The present invention is a disk-shaped connecting body 10 is fixed to the arm end of the excavator via a fixing bracket (11); A hollow first rotary body 21 installed on the lower side of the connecting body 10 and having external gears formed on an outer circumference thereof, and rotating through a plurality of balls 23 inside the first rotary body 21. A rotatable part 20 composed of a second rotatable body 25 which is possibly installed; A driving motor (30) installed on the connection body (10) to rotate the first rotating body (21) of the rotating part (20); A disk-shaped rotating body 40 which is bolted to the lower side of the rotating part 20 and rotates in the same direction when the first rotating body 21 is rotated; Is installed on the lower side of the rotating body 40 via the fastening portion 55, the fixed blade portion 51 is fixed to the fastening portion 55, and the shaft is rotatably coupled to the fixed blade portion 51 Pruning shears 50 made of a cutting blade portion 53 for cutting the branches of; A hydraulic cylinder (60) installed at the fastening part (55) to rotate the cutting blade (53) of the pruning shears (50); The connecting body 10, the rotating part 20, is installed to be located in the center of the rotating body 40 is characterized in that it consists of a pressure oil supply unit 70 for supplying the pressure oil supplied from the excavator to the hydraulic cylinder (60) It is done.

Description

Rotary pruning shears for excavators {ROTARY PRUNING SHEARS FOR AN EXCATOR}

The present invention relates to a rotary pruning shears for an excavator, and more particularly, to cut a tree branch, such as landscape forest or roadside trees, to perform a quick and accurate work through the rotary pruning shears using an excavator, the cut wood The present invention relates to a rotary pruning shear for an excavator that prevents a branch from falling to the ground to prevent a safety accident.

In general, in the case of pruning tree branches such as landscape forests or roadside trees, a worker cuts a tree branch to be cut from the ground through a separate pruning shear, or a ladder in order to cut a tree branch of a high position not to be cut by pruning shears. Climbing up the tree branch to cut the branches or using a means such as cargo crane to climb to a certain height to cut the branches.

However, in the conventional battery method, there is a problem in that the cutting speed is significantly lowered as well as the increase in labor costs due to cutting the branches through manual work.

In addition, when the tree branch to be cut is thick, it is cut using a separate chainsaw, and the cut tree branch falls to the ground, causing a safety accident due to the tree branch.

The present invention was devised in view of the above-described circumstances, and an object of the present invention is to enable a quick and accurate battery operation such as forestry or roadside trees for landscaping through rotary pruning shears using an excavator, and grasp a cut tree branch. It is to prevent the falling branches to the ground by constructing a gripping body to be.

In addition, if there is a play between the fixed blade portion and the cutting blade of the cutting blade due to long-term use of pruning shears, by installing a pusher member for pushing the cutting blade on the fixed blade to minimize the play of the cutting blade due to abrasion It is to provide a rotary pruning shear for an excavator that can be easily cut.

The configuration of the present invention for achieving the above object, the disk-shaped connecting body 10 which is fixed to the arm end of the excavator via the fixing bracket (11); A hollow first rotary body 21 installed on the lower side of the connecting body 10 and having external gears formed on an outer circumference thereof, and rotating through a plurality of balls 23 inside the first rotary body 21. A rotatable part 20 composed of a second rotatable body 25 which is possibly installed; A driving motor (30) installed on the connection body (10) to rotate the first rotating body (21) of the rotating part (20); A disk-shaped rotating body 40 which is bolted to the lower side of the rotating part 20 and rotates in the same direction when the first rotating body 21 is rotated; Is installed on the lower side of the rotating body 40 via the fastening portion 55, the fixed blade portion 51 is fixed to the fastening portion 55, and the shaft is rotatably coupled to the fixed blade portion 51 Pruning shears 50 made of a cutting blade portion 53 for cutting the branches of; A hydraulic cylinder (60) installed at the fastening part (55) to rotate the cutting blade (53) of the pruning shears (50); The connecting body 10, the rotating part 20, is installed to be located in the center of the rotating body 40 is characterized in that it consists of a pressure oil supply unit 70 for supplying the pressure oil supplied from the excavator to the hydraulic cylinder (60) It is done.

As described above, according to the present invention, it is possible to quickly and accurately carry out battery work such as landscape forest or roadside trees using rotary pruning shears using an excavator, which reduces work time, reduces labor costs and improves work efficiency, and cuts trees. By holding the branches it is possible to prevent safety accidents caused by falling of the branches.

In addition, due to the pusher member for pushing the cutting blade installed on the fixed blade portion, the play between the cutting blades is minimized to easily cut the branches.

1 is a perspective view showing a state of the rotary pruning shears according to the present invention,
Figure 2 is an exploded perspective view showing a separation state of the rotary pruning shears for an excavator according to the present invention,
3 is a state diagram showing a front state of the pruning shears of the present invention;
4 is a state diagram showing a side state of the pruning shears of the present invention;
5 is a cross-sectional state view showing a state of the pressure oil supply unit of the present invention,
Figure 6 is a state diagram showing a state in which the tree branches cut by the pruning shears in accordance with the present invention by the gripping body.

Hereinafter, with reference to the accompanying drawings will be described in detail the rotary pruning shears of the present invention.

1 is a perspective view showing a state of the rotary pruning shears for an excavator according to the present invention, Figure 2 is an exploded perspective view showing a separation state of the rotary pruning shears for an excavator according to the present invention, Figure 3 is a front view of the pruning shears of the present invention 4 is a state diagram showing a side state of the pruning shears of the present invention, Figure 5 is a cross-sectional state diagram showing a state of the pressure oil supply unit of the present invention, Figure 6 is a pruning shears according to the present invention The cut tree branch is a state diagram showing a state held by the gripping body.

Here, the accompanying drawings as an example to illustrate the technical spirit of the present invention in more detail, it is to be understood that the technical spirit of the present invention is not limited to the form of the accompanying drawings.

As shown in Figures 1 to 6, the rotary pruning shears for the excavator according to the present invention is connected to the arm end of the excavator body, rotary part, drive motor, rotary body, pruning shears, hydraulic cylinder, pressure oil supply It is composed.

The connecting body 10 is fixed to the arm end of the excavator via a pair of fixing brackets 11 in a disk shape.

Here, the fixing bracket 11 is formed with a fixing pin insertion hole 13 into which the fixing pin of the excavator arm is inserted, and in the center of the connecting body 10 for the installation of the pressure oil supply unit 70 to be described later. Through holes are formed.

In addition, the rotating part 20 is installed on the lower side of the connecting body 10, the outer circumferential first hollow body 21 and the outer gear is formed, and a plurality of inside the first rotating body 21 The second rotating body 25 is rotatably installed via the ball 23.

In other words, the rotating part 20 has a structure similar to that of a conventionally used swing bearing, in which the rotation of the first rotating body 21 and the second rotating body 25 may be independently performed by the ball 23. The second rotating body 25 is bolted to the lower side of the connecting body 10, and the first rotating body 21 is bolted to the rotating body 40 to be described later.

In addition, the driving motor 30 is installed on the connection body 10 to rotate the first rotating body 21 of the rotating part 20.

That is, the drive shaft 30 is extended to the lower side of the connecting body 10 with the drive motor 30 is installed on the upper side of the connecting body 10, the external gear of the first rotating body 21 to the extended drive shaft And the rotary gear 31 is engaged with the driving motor 30 when the drive motor 30 is driven to rotate the first rotating body 21 by the rotation of the rotary gear 31, the second time The whole 25 is not rotated.

In addition, the rotating body 40 is bolted to the lower side of the rotating part 20 in a disc shape to rotate in the same direction when the first rotating body 21 is rotated.

In other words, when the driving motor 30 installed on the upper side of the connecting body 10 is driven, the rotational force of the rotary gear 31 connected to the driving side of the driving motor 30 is the first rotating body 21. The rotating body 40 which is transmitted to the bolt and the first rotating body 21 is rotated in the same direction as the rotation direction of the first rotating body 21.

On the other hand, the pruning shears 50 is installed on the lower side of the rotating body 40 via the fastening portion 55, the fixed blade portion 51 is fixed to the fastening portion 55 and the fixed blade portion 51 It is composed of a cutting blade portion (53) rotatably coupled to the shaft to cut the branches of the tree.

That is, the plate member 56 of the fastening unit 55 is coupled to the lower side of the rotating body 40, the plate member 40 is formed with a connecting bracket 57 is fixed blade portion of the pruning shears 50 51 is connected to the connecting bracket 57 is located in the lower center portion of the plate 56.

Here, the fastening part 55 is an example for fixing the pruning shears 50 to the lower side of the rotating body 40, and is not limited to the fastening part having the above structure, but the pruning shears 50 It may be any fastening means that can be fixed to the lower side of the rotating body (40).

In addition, the elastic blade 81 of the pruning shears 50, the elastic spring 81 is installed in the mounting groove 52 formed in the fixed blade portion 51 and the elastic in the state installed in the installation groove 52 A pusher member 80 consisting of a pusher ball 82 for protruding a predetermined height to the outside by the elasticity of the spring 81 to push the cutting blade portion 53 outward is installed.

In other words, when the cutting blade of the fixed blade 51 and the cutting blade 53 wears due to prolonged use of the pruning shears 50, the cutting blade of the fixed blade 51 and the cutting blade 53 By minimizing the clearance of the tree is to be able to easily cut branches.

In addition, a grip member 90 is installed on the fixed blade 51 and the cutting blade part 53 of the pruning shears 50 so as to grip the cut tree branches, and the twig 90 having various thicknesses is provided on the grip member 90. An elastic body 91 is installed to allow easy gripping.

That is, as illustrated in FIG. 6, the gripping member 90 grips the tree branch cut by the pruning shears 50, thereby preventing a safety accident due to the falling of the tree branch that has been cut, and the elastic body 91. ) Makes it easy to catch the outer periphery of the branches of different thicknesses.

Here, the gripping surface of the elastic body 91 has a concave shape so that the tree branches having a circular shape can be gripped more easily.

On the other hand, the hydraulic cylinder 60 is installed in the fastening portion 55 to rotate the cutting blade portion 53 of the pruning shears (50).

That is, the cylinder shaft of the hydraulic cylinder 60 is connected to the cutting blade portion 53 so that the cutting blade portion 53 is rotated about the axis of the fixed blade portion 51 during the reciprocating movement of the cylinder shaft of the hydraulic cylinder 60. Will be done.

The pressure oil supply unit 70 is installed to penetrate the connection body 10, the rotation unit 20, and the center of the rotation body 40 to supply the hydraulic oil supplied from the excavator to the hydraulic cylinder 60.

In other words, the pressure oil supply unit 70 is a first pressure oil hole fixed to the connection body 10 by a bolt in a state located in the center portion of the connection body 10, the rotation unit 20, the rotation body 40. The air supply body 71 and the second pressure oil supply body 75 are fixed to the rotary body 40 by a bolt while being rotatably installed while surrounding the first pressure oil supply body 71.

A plurality of inflow pipes 72 are formed in the first pressure oil supply body 71 through which pressure oil supplied from an excavator flows in, and the second pressure oil supply body 75 may be formed from the inflow pipe line 72. The outflow pipe path 76 is formed to supply the pressure oil supplied to the hydraulic cylinder 60 through the flow pipe 61.

The inlet conduit 72 of the first pressure oil supply body 71 is a conduit starting from an upper side of the first pressure oil supply body 71 and ending at a predetermined height of an outer surface of the first pressure oil supply body 71. Each inlet pipe is terminated at the outer periphery via the inner side of the first pressure oil supply body 71 with different depths.

In addition, the outlet pipe 76 of the second pressure oil supply unit 75 starts at a predetermined height of the inner circumference of the second pressure oil supply unit 75, that is, at each point of the inflow line, and the second pressure oil supply unit ( The pressure oil supplied from the excavator passing through the outlet pipe 76 is supplied to the hydraulic cylinder 60 through the flow pipe 61 as a pipe line ending in the lower portion of the outer peripheral surface of 75).

Looking at the action and effect of the present invention configured as described above, after moving the pruning shears of the present invention by the height of the branches to be cut by moving the arm of the excavator, the pruning shears to match the direction of the branches to be cut .

That is, when the driving motor 30 mounted on the upper side of the connecting body 10 is driven, the first rotating body 21 of the rotating part 20 installed below the connecting body 10 rotates, and the first When the whole 21 is rotated, the rotating body 40 bolted to the first rotating body 21 is rotated so that the pruning shears 50 installed on the rotating body 40 via the fastening unit 55 are rotated. In this case, the second rotating body 25 of the rotating part 20 does not rotate.

Subsequently, when the hydraulic oil is supplied to the hydraulic cylinder 60 installed in the fastening unit 55 through the hydraulic oil supply unit 70, the cutting blade portion of the pruning shears 50 is moved by the movement of the cylinder shaft of the hydraulic cylinder 60. 53) is rotated to open the pruning shears.

Then, the hydraulic oil is supplied to the hydraulic cylinder 60 again to move the cylinder shaft of the hydraulic cylinder 60 so that the cutting blade portion 53 moves in the direction of the fixed blade portion 51 to cut the tree branches.

At this time, the cut tree branches are in a state of being gripped by the gripper 90 installed on the fixed blade portion 51 and the cutting blade portion 53, the operator opens the gripped tree branches by the pruning action of pruning shears Place it safely on the ground.

Here, even if the thickness of the tree branches to be cut different from each other it is possible to be easily gripped by the elastic body 91 installed in the gripping body (90).

In addition, when the scissors are used for a long time, the cutting blades of the fixed blade part 51 and the cutting blade part 53 wear, and the cutting blade of the fixed blade part 51 and the cutting blade part 53 due to the wear of such cutting blades. Gaps occur between the tree branches can not be easily cut, in the present invention by installing the push member 80 consisting of an elastic spring 81 and the push ball 82 on the fixed blade 51, the push The member 80 pushes the cutting blade part 53 in the direction of the fixed blade part so that the cutting edge 53 between the fixed blade part 51 and the cutting blade part 53 can be easily cut by minimizing the clearance between the cutting blade part 51 and the cutting blade part 53. .

Although the present invention has been described in detail as described above, various modifications can be made by those skilled in the art without departing from the scope of the present invention, and the scope of the present invention is limited to the above-described embodiments. It should not be limited, but should be determined not only by the scope of patent registration described below, but also by those equivalent to the claims.

<Description of the symbols for the main parts of the drawings>
10: connecting body 11: fixing bracket 13: insertion hole
20: rotating portion 21: first rotating body 23: ball
25: second rotating body 30: drive motor 31: rotary gear
40: rotating body 50: pruning shears 51: fixed blade portion
52: mounting groove 53: cutting blade portion 55: fastening portion
56: plate 57: connecting bracket 60: hydraulic cylinder
61: flow pipe 70: pressure oil supply portion 71: first pressure oil supply body
72: inlet pipe 75: second pressure oil supply 76: outlet pipe
80: push member 81: elastic spring 82: push ball
90: grip body 91: elastic body

Claims (4)

A disk-shaped connecting body 10 fixed to the arm end of the excavator via a fixing bracket 11;
A hollow first rotary body 21 installed on the lower side of the connecting body 10 and having external gears formed on an outer circumference thereof, and rotating through a plurality of balls 23 inside the first rotary body 21. A rotatable part 20 composed of a second rotatable body 25 which is possibly installed;
A driving motor (30) installed on the connection body (10) to rotate the first rotating body (21) of the rotating part (20);
A disk-shaped rotating body 40 which is bolted to the lower side of the rotating part 20 and rotates in the same direction when the first rotating body 21 is rotated;
Is installed on the lower side of the rotating body 40 via the fastening portion 55, the fixed blade portion 51 is fixed to the fastening portion 55, and the shaft is rotatably coupled to the fixed blade portion 51 Pruning shears 50 made of a cutting blade portion 53 for cutting the branches of;
A hydraulic cylinder (60) installed at the fastening part (55) to rotate the cutting blade (53) of the pruning shears (50);
The connecting body 10, the rotating part 20, is installed to be located in the center of the rotating body 40 is characterized in that it consists of a pressure oil supply unit 70 for supplying the pressure oil supplied from the excavator to the hydraulic cylinder (60) Rotary shears for excavators. The method of claim 1,
When the cutting blade of the fixed blade 51 and the cutting blade 53 wears due to long-term use of the pruning shears 50, the clearance between the fixed blade 51 and the cutting blade 53 is cut. In order to minimize the fixed blade (51) rotary pruning shears for excavators, characterized in that the push member (80) is installed to push the cutting blade (53) to the outside. The method of claim 2,
The push member 80 is elastic spring 81 installed in the installation groove 52 formed in the fixed blade portion 51 and the elastic spring 81 in the state installed in the installation groove 52 by the elasticity Rotating pruning shears for excavators, characterized in that consisting of a push ball 82 to protrude a predetermined height to the outside to push the cutting blade portion 53 to the outside. 4. The method according to any one of claims 1 to 3,
The gripping blades 51 and the cutting blade portion 53 of the pruning shears 50 are provided with a gripper 90 so as to grip the cut tree branches, and the gripper 90 has branches of various thicknesses. Rotary pruning shears for excavators, characterized in that the elastic body 91 is installed to be easily gripped.
KR1020100035366A 2010-04-16 2010-04-16 Rotary pruning shears for an excator KR100972741B1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101190877B1 (en) 2011-02-09 2012-10-15 무풍건설주식회사 The ground improvement device for cutoff wall and earths wall
KR101442185B1 (en) * 2013-07-19 2014-09-22 정수동 Rotary connector
KR101525797B1 (en) * 2013-12-11 2015-06-03 정수동 The Multi-Using Working Equipment For excavator
KR101535295B1 (en) * 2015-01-16 2015-07-08 한운선 Pruning shears
KR101941577B1 (en) * 2018-11-19 2019-01-23 김경덕 Logging apparatus for excavator
KR20190032067A (en) 2017-09-18 2019-03-27 안은삼 Rotary pruning shears for an excator
CN115868329A (en) * 2022-09-07 2023-03-31 赣州伟邦农机有限公司 Lithium electricity scissors

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960002762Y1 (en) * 1993-10-08 1996-04-08 김봉기 Apparatus for delimbing standing trees
US6408906B1 (en) * 2000-04-14 2002-06-25 Innotec Engineering, Inc. Gripping and cutting apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960002762Y1 (en) * 1993-10-08 1996-04-08 김봉기 Apparatus for delimbing standing trees
US6408906B1 (en) * 2000-04-14 2002-06-25 Innotec Engineering, Inc. Gripping and cutting apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101190877B1 (en) 2011-02-09 2012-10-15 무풍건설주식회사 The ground improvement device for cutoff wall and earths wall
KR101442185B1 (en) * 2013-07-19 2014-09-22 정수동 Rotary connector
KR101525797B1 (en) * 2013-12-11 2015-06-03 정수동 The Multi-Using Working Equipment For excavator
KR101535295B1 (en) * 2015-01-16 2015-07-08 한운선 Pruning shears
WO2016114505A1 (en) * 2015-01-16 2016-07-21 한운선 Electric pruning shears
KR20190032067A (en) 2017-09-18 2019-03-27 안은삼 Rotary pruning shears for an excator
KR101941577B1 (en) * 2018-11-19 2019-01-23 김경덕 Logging apparatus for excavator
CN115868329A (en) * 2022-09-07 2023-03-31 赣州伟邦农机有限公司 Lithium electricity scissors
CN115868329B (en) * 2022-09-07 2024-05-28 赣州伟邦农机有限公司 Lithium electric shears

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