CN109230996B - Portable wood grabbing claw capable of avoiding obstacle - Google Patents
Portable wood grabbing claw capable of avoiding obstacle Download PDFInfo
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- CN109230996B CN109230996B CN201811222160.5A CN201811222160A CN109230996B CN 109230996 B CN109230996 B CN 109230996B CN 201811222160 A CN201811222160 A CN 201811222160A CN 109230996 B CN109230996 B CN 109230996B
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- lever
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- circular ring
- clamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
- B66C1/442—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces actuated by lifting force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
The invention discloses a portable wood grabbing claw capable of avoiding obstacles, which mainly comprises a cage-type guide cone and a lever wood clamping mechanism; the cage type guide cone mainly comprises a large circular ring, a small circular ring and a guide rod; the large circular ring and the small circular ring are parallel to each other, and the guide rods are uniformly arranged between the large circular ring and the small circular ring; the lever wood clamping mechanism mainly comprises a clamping head, a clamping arm, a pull ring, a pull rod and a lever; the clamping head is fixedly arranged at one end of the clamping arm, the other end of the clamping arm is rigidly connected with one end of the lever, the other end of the lever is hinged with one end of the pull rod, and the other end of the pull rod is hinged with one end of the pull ring; a round hole is arranged at the joint of the clamping arm and the lever; the large ring passes through the round hole and is hinged with the clamping arm. The invention can effectively reduce auxiliary personnel in the process of pulling the cable of the winch to collect materials, not only can save labor force and reduce cost, but also can greatly improve the cable collecting efficiency, and plays an important promoting role in the popularization and application of the cable collecting technology of the winch.
Description
Technical Field
The invention belongs to the technical field of cable traction skidder in forest areas, and particularly relates to a portable wood grabbing claw capable of avoiding obstacles.
Background
The winch cable traction skidder technology is widely applied to the steep slope forest areas in the south, and plays an important role in reducing the labor intensity of workers and improving the production efficiency of wood skidders. For example, chinese patent No. CN201410402987X discloses a method for expanding the area of one-time installation of a cable assembly crane, comprising the following steps: firstly, taking a vertical ground projection of a bearing cable as a central axis, and setting twenty-meter boundary lines at the width positions of twenty meters on two sides of the central axis; searching a standing tree or a stump inside a twenty-meter boundary line; step three, arranging a guide pulley on the standing tree or the stump; step four, adjusting the sports car to a proper position; and fifthly, pulling the hoisting rope to a guide pulley on the standing tree or the stump, manually opening a lock catch of the guide pulley, loading the hoisting rope into a pulley groove, enabling a wood grabbing hook at the end part of the hoisting rope to be positioned at the outer side of the guide pulley, locking the lock catch, and starting the material collecting operation in the area beyond the twenty-meter boundary line. The method reduces the disassembly and assembly times of the cable-logging crane to the greatest extent on the premise of meeting the safety operation regulations, saves time and labor, and can be popularized and applied in forest logging operation.
However, the skidder technology currently has a number of technical problems to be solved: firstly, when the cable material-collecting technology is used for material-collecting, the end part of the wood is bound by the bundle wood rope, and then the hook on the traction rope of the winch can be hooked on the bundle wood rope to pull the material-collecting, so that the operation is time-consuming and labor-consuming. Secondly, because the wood end is completely exposed in the cable traction and lumbering process, the contact area of an attack object is large, and the cable is often blocked by the obstacles in the felling areas such as standing tree, stumps, shrubs, sills and the like, so that the cable cannot be dragged smoothly. Therefore, people have to be dispatched to follow the wood all the way, so that obstacles are eliminated, the danger is high, the labor is wasted, and the production efficiency of the laminated wood is greatly affected. In order to improve the production efficiency of cable material collection in a forest area, a wood grabbing tool capable of replacing a bundle of wood cables and enabling wood to automatically avoid obstacles is needed.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a practical wood grabbing tool which can replace a wood bundling rope to grab wood and can automatically avoid a felling obstacle to realize smooth wood collection for the cable traction wood collection operation of a winch in a steep slope forest region in the south.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the portable wood grabbing claw capable of avoiding the obstacle mainly comprises a cage-type guide cone and a lever wood clamping mechanism; the cage type guide cone mainly comprises a large circular ring, a small circular ring and a plurality of guide rods; the large circular ring and the small circular ring are parallel to each other, and the guide rods are uniformly arranged between the large circular ring and the small circular ring and are in a cage-shaped conical structure; the lever wood clamping mechanism mainly comprises a clamping head, a clamping arm, a pull ring, a pull rod and a lever; the inner side surface of the clamping head is provided with a sharp tooth, the clamping head is fixedly arranged at one end of the clamping arm, the other end of the clamping arm is rigidly connected with one end of the lever, the other end of the lever is hinged with one end of the pull rod, and the other end of the pull rod is hinged with one end of the pull ring; a round hole is formed at the joint of the clamping arm and the lever; the large ring penetrates through the round hole and is hinged with the clamping arm.
In the invention, the lever wood clamping mechanism adopts a double-lever double-pull-rod crossed symmetrical arrangement mode, so that the clamping arms and the clamping heads can obtain enough clamping force, and the reliability of the wood clamping mechanism is improved. The setting of pointed teeth can make the chuck grip the wood well, avoid the wood to break away from the claw during the dragging process, further improve the reliability of gripping the wood.
The invention further describes that the inner ring of the large ring is also provided with two supporting rods, and the end parts of the supporting rods are arranged at two sides of the hinge joint of the large ring and the clamping arm. The supporting rod is arranged to effectively provide supporting force, so that the large ring is prevented from being stressed to deform when the lever wood clamping mechanism is used for wood clamping operation.
The large circular ring/small circular ring, the guide rod, the clamping head and the clamping arm, and the clamping arm and the lever can be connected together in a welding mode, or can be connected in other rigid modes.
The working principle and the using method of the invention are as follows:
the wood grabbing claw is connected with the traction cable of the winch, namely the traction cable of the winch passes through the small circular ring and is fixedly connected to the pull ring (a through hole can be formed in the end part of the pull ring so as to facilitate the connection of the traction cable), then a felling field person pulls the wood grabbing claw to the end part of wood, the traction cable is loosened, the clamping arms are opened by two hands, the clamping heads clamp the end part of the wood, the traction cable is tensioned, and the clamping heads at the two ends primarily clamp the wood under the boosting action of the pull rod and the lever. And then starting the winch to recover the traction rope, further increasing the pulling force of the traction rope, and enabling the clamping head to further clamp the wood until the wood is dragged to move. When wood encounters the obstacle of standing tree, stump, shrub, soil bank, etc. during dragging, the conical head comprising large ring, small ring and guide rod may pass through the small ring on the cone tip to avoid the obstacle and pass through smoothly. After the wood is dragged to a preset place, the winch is placed in a neutral position to loosen the traction rope, the clamping arm is manually pulled open to remove the wood, then the wood grabbing claw is taken to the end part of the next wood to clamp, and the steps are repeated to carry out the wood grabbing and collecting operation of the next period.
The invention has the advantages that:
1. the invention has scientific and reasonable structural design, is simple and practical, can effectively reduce auxiliary personnel in the process of pulling the cable of the winch to collect materials, can save labor force and reduce labor cost, can greatly improve the cable collecting efficiency, and plays an important promoting role in popularization and application of the cable collecting technology of the winch.
2. The invention adopts the double-lever double-pull-rod reinforcing mechanism which is arranged in a crossing way, so that the clamping arms and the clamping heads can obtain enough clamping force, and the reliability of the wood grabbing claws for clamping wood is improved.
3. According to the invention, the main body structure of the wood grabbing claw is designed into a cage type conical structure, so that the weight of the wood grabbing claw is reduced, the wood grabbing claw is convenient to carry, and the wood grabbing claw has the function of automatically avoiding obstacles through the guiding of the special conical structure and the avoidance function of the minimum contact area of an object to be hit.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Reference numerals: the device comprises a 1-chuck, a 2-clamping arm, a 3-supporting rod, a 4-large ring, a 5-pull ring, a 6-small ring, a 7-traction rope, an 8-guide rod, a 9-pull rod and a 10-lever.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, a portable wood grabbing claw capable of avoiding obstacles mainly comprises a cage-type guide cone and a lever wood clamping mechanism; the cage type guide cone mainly comprises a large circular ring 4, a small circular ring 6 and six guide rods 8; the large circular ring 4 and the small circular ring 6 are parallel to each other, and the guide rods 8 are uniformly arranged between the large circular ring 4 and the small circular ring 6 and are in a cage-type conical structure; the lever wood clamping mechanism mainly comprises a clamping head 1, a clamping arm 2, a pull ring 5, a pull rod 9 and a lever 10; the inner side surface of the clamping head 1 is provided with a spike, the clamping head 1 is fixedly arranged at one end of the clamping arm 2, the other end of the clamping arm 2 is rigidly connected with one end of the lever 10, the other end of the lever 10 is hinged with one end of the pull rod 9, and the other end of the pull rod 9 is hinged with one end of the pull ring 5; a round hole is formed at the joint of the clamping arm 2 and the lever 10; the large ring 4 passes through the round hole and is hinged with the clamping arm 2. The inner ring of the large ring 4 is also provided with two supporting rods 3, and the end parts of the supporting rods 3 are arranged at two sides of the hinging part of the large ring 4 and the clamping arm 2.
Example 2:
the portable wood grabbing claw capable of avoiding the obstacle mainly comprises a cage-type guide cone and a lever wood clamping mechanism; the cage type guide cone mainly comprises a large circular ring 4, a small circular ring 6 and eight guide rods 8; the large circular ring 4 and the small circular ring 6 are parallel to each other, and the guide rods 8 are uniformly arranged between the large circular ring 4 and the small circular ring 6 and are in a cage-type conical structure; the lever wood clamping mechanism mainly comprises a clamping head 1, a clamping arm 2, a pull ring 5, a pull rod 9 and a lever 10; the inner side surface of the clamping head 1 is provided with a spike, the clamping head 1 is fixedly arranged at one end of the clamping arm 2, the other end of the clamping arm 2 is rigidly connected with one end of the lever 10, the other end of the lever 10 is hinged with one end of the pull rod 9, and the other end of the pull rod 9 is hinged with one end of the pull ring 5; a round hole is formed at the joint of the clamping arm 2 and the lever 10; the large ring 4 passes through the round hole and is hinged with the clamping arm 2.
The use method of the embodiment comprises the following steps:
the portable wood grabbing claw of the embodiment is connected with the traction rope 7 of the winch, namely, the traction rope 7 of the winch passes through the small circular ring 6 and is fixedly connected to the pull ring 5, then a felling field person pulls the wood grabbing claw to the end of wood, the traction rope 7 is loosened, the clamping arms 2 are opened by two hands, the clamping heads 1 clamp the end of the wood, the traction rope 7 is tensioned, and the clamping heads 1 at the two ends primarily clamp the wood under the boosting action of the pull rod 9 and the lever 10. The winch is then started to recover the traction rope 7, and the pulling force of the traction rope 7 is further increased, so that the clamping head 1 further clamps the wood until the wood is dragged to move. When wood encounters the obstacle of standing tree, stump, shrub, soil bank, etc. during dragging, the conical head comprising the big circular ring 4, the small circular ring 6 and the guide rod 8 can pass through the small circular ring 6 on the conical tip smoothly by avoiding the obstacle with minimum contact area. After the wood is dragged to a preset place, the winch is placed in a neutral position to loosen the traction rope 7, the clamping arm 2 is manually pulled to release the wood, then the wood grabbing claw is taken to the end part of the next wood to clamp, and the steps are repeated to carry out the wood grabbing and collecting operation of the next period.
Claims (2)
1. The utility model provides a can dodge light wood claw of barrier which characterized in that: mainly comprises a cage type guide cone and a lever wood clamping mechanism;
the cage type guide cone mainly comprises a large circular ring (4), a small circular ring (6) and a plurality of guide rods (8); the large circular ring (4) and the small circular ring (6) are parallel to each other, and the guide rods (8) are uniformly arranged between the large circular ring (4) and the small circular ring (6) and are in a cage-shaped conical structure;
the lever wood clamping mechanism mainly comprises a clamping head (1), a clamping arm (2), a pull ring (5), a pull rod (9) and a lever (10); the inner side surface of the clamping head (1) is provided with a spike, the clamping head (1) is fixedly arranged at one end of the clamping arm (2), the other end of the clamping arm (2) is rigidly connected with one end of the lever (10), the other end of the lever (10) is hinged with one end of the pull rod (9), and the other end of the pull rod (9) is hinged with one end of the pull ring (5); a round hole is formed at the joint of the clamping arm (2) and the lever (10); the large ring (4) passes through the round hole and is hinged with the clamping arm (2).
2. The obstacle avoidance portable wood claw according to claim 1 wherein: the inner ring of the large ring (4) is also provided with two supporting rods (3), and the end parts of the supporting rods (3) are arranged on two sides of the hinging position of the large ring (4) and the clamping arm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222160.5A CN109230996B (en) | 2018-10-19 | 2018-10-19 | Portable wood grabbing claw capable of avoiding obstacle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222160.5A CN109230996B (en) | 2018-10-19 | 2018-10-19 | Portable wood grabbing claw capable of avoiding obstacle |
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| Publication Number | Publication Date |
|---|---|
| CN109230996A CN109230996A (en) | 2019-01-18 |
| CN109230996B true CN109230996B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811222160.5A Active CN109230996B (en) | 2018-10-19 | 2018-10-19 | Portable wood grabbing claw capable of avoiding obstacle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110937536A (en) * | 2019-12-04 | 2020-03-31 | 福建农林大学 | Self-shielding dragging cable mechanism and working method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003146583A (en) * | 2001-11-09 | 2003-05-21 | Shin Caterpillar Mitsubishi Ltd | Material collecting conveying machine |
| DE202005007464U1 (en) * | 2005-05-11 | 2005-07-07 | J.D. Theile Gmbh & Co. Kg | Pliers gripper e.g. for transporting of stone or concrete blocks, has in each case lever arm and grab arm with a grab element at its free end and each arm between lever arm and grab arm opens and latches pliers and being tiltable stored |
| CN202148139U (en) * | 2011-05-26 | 2012-02-22 | 葫芦岛天力工业有限公司 | Start and stop lever type hanging tongs with double hinged shafts |
| CN104291218A (en) * | 2014-08-15 | 2015-01-21 | 广西大学 | Method for expanding one-step installation yarding area of cable yarding crane |
| CN107140525A (en) * | 2017-05-05 | 2017-09-08 | 遂宁达兴科技有限公司 | A kind of simple special suspension clamp |
| CN206955457U (en) * | 2017-06-27 | 2018-02-02 | 衡水凯达模压制品有限公司 | A kind of pipe hydraulic hanging fixture |
| CN209024037U (en) * | 2018-10-19 | 2019-06-25 | 中国林业科学研究院热带林业实验中心 | A kind of cutting area logging is with grabbing the wooden pawl |
-
2018
- 2018-10-19 CN CN201811222160.5A patent/CN109230996B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003146583A (en) * | 2001-11-09 | 2003-05-21 | Shin Caterpillar Mitsubishi Ltd | Material collecting conveying machine |
| DE202005007464U1 (en) * | 2005-05-11 | 2005-07-07 | J.D. Theile Gmbh & Co. Kg | Pliers gripper e.g. for transporting of stone or concrete blocks, has in each case lever arm and grab arm with a grab element at its free end and each arm between lever arm and grab arm opens and latches pliers and being tiltable stored |
| CN202148139U (en) * | 2011-05-26 | 2012-02-22 | 葫芦岛天力工业有限公司 | Start and stop lever type hanging tongs with double hinged shafts |
| CN104291218A (en) * | 2014-08-15 | 2015-01-21 | 广西大学 | Method for expanding one-step installation yarding area of cable yarding crane |
| CN107140525A (en) * | 2017-05-05 | 2017-09-08 | 遂宁达兴科技有限公司 | A kind of simple special suspension clamp |
| CN206955457U (en) * | 2017-06-27 | 2018-02-02 | 衡水凯达模压制品有限公司 | A kind of pipe hydraulic hanging fixture |
| CN209024037U (en) * | 2018-10-19 | 2019-06-25 | 中国林业科学研究院热带林业实验中心 | A kind of cutting area logging is with grabbing the wooden pawl |
Non-Patent Citations (1)
| Title |
|---|
| 陡坡山地索道集材作业效率的研究;曾冀;蔡道雄;刁海林;黄建友;白灵海;;木材加工机械(05) * |
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| CN109230996A (en) | 2019-01-18 |
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