CN108385748B - Automatic tensioning structure of steel wire rope for grab bucket - Google Patents
Automatic tensioning structure of steel wire rope for grab bucket Download PDFInfo
- Publication number
- CN108385748B CN108385748B CN201810383620.6A CN201810383620A CN108385748B CN 108385748 B CN108385748 B CN 108385748B CN 201810383620 A CN201810383620 A CN 201810383620A CN 108385748 B CN108385748 B CN 108385748B
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- China
- Prior art keywords
- wire rope
- steel wire
- device body
- tensioning device
- tensioning
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Classifications
-
- 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
- E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
- E02F3/47—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets
-
- 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
- E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
- E02F3/48—Drag-lines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Control And Safety Of Cranes (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to the field of underground operation construction equipment, in particular to an automatic steel wire rope tensioning structure for a grab bucket; the device comprises a crown block, a steel wire rope for pulling the grab bucket and a winding drum for fixing the steel wire rope, wherein one end of the steel wire rope is wound on the winding drum, and the other end of the steel wire rope is wound on the top of the crown block and then is hoisted to the grab bucket; the method is characterized in that: the device also comprises a tensioning device body, wherein the tensioning device body is arranged on the crown block; the other end of the steel wire rope passes through the tensioning device body and then bypasses the top of the crown block; the tensioning device body is a swinging mechanism, and when the steel wire rope is loosened due to the reactive force generated by the impact grab operation, the swinging arm of the tensioning device body rotates to enable the steel wire rope to be kept in a tensioning state. According to the invention, the tension device body with elastic swing is arranged, so that the steel wire rope can still keep a tension state at the moment of impacting the grabbing head to land, and the phenomenon that the steel wire rope is staggered on the winding drum is avoided.
Description
Technical Field
The invention relates to the field of underground operation construction equipment, in particular to an automatic steel wire rope tensioning structure for a grab bucket.
Background
In the process of punching a hardness layer, when the impact grab bucket is punched to the bottom, under the combined action of resilience force and inertia factors of an action system, the steel wire rope often generates loosening and rebound phenomena, so that the residual steel wire rope originally wound on a winding drum can be suddenly displaced and loosened, and the problem of dislocation of the steel wire rope is easily caused when the steel wire rope is recovered subsequently.
Disclosure of Invention
The invention aims to overcome the defects and provide an automatic tensioning device capable of avoiding the loosening of a steel wire rope caused by the rebound force generated by the impact of a grab bucket.
In order to achieve the above object, the present invention is achieved by:
the automatic steel wire rope tensioning structure for the grab bucket comprises a crown block, a steel wire rope for pulling the grab bucket and a winding drum for fixing the steel wire rope, wherein one end of the steel wire rope is wound on the winding drum, and the other end of the steel wire rope is wound on the top of the crown block and then is hoisted; the device also comprises a tensioning device body, wherein the tensioning device body is arranged on the crown block; the other end of the steel wire rope passes through the tensioning device body and then bypasses the top of the crown block; the tensioning device is a swinging mechanism, and when the steel wire rope is loosened due to the reactive force generated by the operation of impacting the grab bucket, the swinging arm of the tensioning device rotates to enable the steel wire rope to be kept in a tensioning state.
The automatic steel wire rope tensioning structure for the grab bucket comprises a tensioning device body, a clamping device body and a clamping device body, wherein the tensioning device body comprises a sliding base, a compression spring, a rocker arm and a steel wire rope guide wheel; the center of the rocker arm is rotationally connected with the sliding base, the compression spring is arranged on one side of the rocker arm, the steel wire rope guide wheels are respectively arranged at two ends of the rocker arm, and when the steel wire rope passes through the tensioning device, the steel wire rope penetrates through the top of one side guide wheel and penetrates out of the bottom of the other side guide wheel; the top of compression spring is located wire rope's below, and when wire rope suddenly slackened, compression spring jack-up upwards and with wire rope jack-up simultaneously.
The steel wire rope automatic tensioning structure for the grab bucket further comprises a spring seat, a nut and a pull rope; the compression spring is arranged on the sliding base and sleeved with the spring seat, and the nut fixes the pull rope with the spring seat and the rocker arm respectively, so that the spring seat, the compression spring and the rocker arm form an elastic swinging mechanism.
According to the invention, through the design, the elastic tensioning device body is arranged, and the tensioning device body with elastic swing is arranged, so that the guide wheel in the tensioning device body is pressed by the steel wire rope in a normal state, and when the steel wire rope instantaneously becomes loose due to the impact resilience force of the grab bucket, the spring seat in the tensioning device body rapidly springs upwards, so that the rocker rotates to jack up the steel wire rope through the guide wheel, and the steel wire rope can still keep the tensioning state at the moment of impacting the grab head to fall to the ground, thereby avoiding the staggered phenomenon of the steel wire rope on the winding drum.
Drawings
Fig. 1 is a schematic diagram of the standby state of the tensioning structure.
Fig. 2 is a schematic diagram of the working state of the tensioning structure.
Fig. 3 is a schematic structural view of a tensioning device body in the tensioning structure.
Fig. 4 is a schematic perspective view of the tensioning structure.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1, 2 and 4, an automatic steel wire rope tensioning structure for a grab bucket comprises a crown block 1, a steel wire rope 2 for pulling the grab bucket and a winding drum for fixing the steel wire rope 2, wherein one end of the steel wire rope 2 is wound on the winding drum, and the other end of the steel wire rope is wound on the top of the crown block 1 and then the grab bucket is hoisted; the device also comprises a tensioning device body 3, wherein the tensioning device body 3 is arranged on the crown block 1; the other end of the steel wire rope 2 passes through the tensioning device body 3 and then bypasses the top of the crown block 1; the tension device body 3 is of an elastic swing structure, and when the wire rope 2 is loosened due to the repulsive force generated by the impact grab operation, the swing arm 33 of the tension device rotates to maintain the tension state of the wire rope 2.
As shown in fig. 3, the automatic steel wire rope tensioning structure for the grab bucket comprises a tensioning device body 3, a clamping device body and a clamping device body, wherein the tensioning device body 3 comprises a sliding base 31, a compression spring 32, a rocker arm 33 and a steel wire rope guide wheel 34; the center of the rocker arm 33 is rotationally connected with the sliding base 31, the compression spring 32 is arranged on one side of the rocker arm 33, the steel wire rope guide wheels 34 are respectively arranged at two ends of the rocker arm 33, and the steel wire ropes 2 respectively penetrate through the top of one side guide wheel 34 and penetrate out of the bottom of the other side guide wheel 34 when penetrating through the tensioning device body; the top of the compression spring 32 is located below the wire rope 2, and when the wire rope 2 suddenly slacks, the compression spring 32 is lifted up to rotate the rocker arm 33, so that the guide wheel 34 lifts up the wire rope 2.
The automatic steel wire rope tensioning structure for the grab bucket further comprises a spring seat 35, a nut 36 and a pull rope 37, wherein the compression spring 32 is arranged on the sliding base 31 and sleeved with the spring seat 35, the nut 36 is used for fixing the pull rope 37 with the spring seat 35 and the rocker arm 33 respectively, and therefore the spring seat 35, the compression spring 32 and the rocker arm 33 form an elastic swinging mechanism.
According to the invention, through the design, the tensioning device body with elastic swing is arranged, the guide wheel in the tensioning device body is pressed by the steel wire rope in a normal state, and when the steel wire rope instantaneously becomes loose due to the impact resilience force of the grab bucket, the spring seat in the tensioning device body rapidly upwards bounces so that the rocker rotates to jack up the steel wire rope through the guide wheel, so that the steel wire rope can still keep the tensioning state at the moment of impacting the grab head to land, and the phenomenon of staggered arrangement of the steel wire rope on the winding drum is avoided.
Claims (1)
1. The automatic steel wire rope tensioning structure for the grab bucket comprises a crown block, a steel wire rope for pulling the grab bucket and a winding drum for fixing the steel wire rope, wherein one end of the steel wire rope is wound on the winding drum, and the other end of the steel wire rope is wound on the top of the crown block and then is hoisted; the device also comprises a tensioning device body, wherein the tensioning device body is arranged on the crown block; the other end of the steel wire rope passes through the tensioning device body and then bypasses the top of the crown block; the tensioning device body is an elastic swinging mechanism, when the steel wire rope is loosened due to the reactive force generated by the operation of the impact grab, the steel wire rope is kept in a tensioning state through the rotation of a rocker arm of the tensioning device, and the tensioning device is characterized in that: the tensioning device body comprises a sliding base, a compression spring, a rocker arm and a steel wire rope guide wheel; the center of the rocker arm is rotationally connected with the sliding base, the compression spring is arranged on one side of the rocker arm, the steel wire rope guide wheels are respectively arranged at two ends of the rocker arm, and when the steel wire rope passes through the tensioning device, the steel wire rope penetrates through the top of one side guide wheel and penetrates out of the bottom of the other side guide wheel; the top of the compression spring is positioned below the steel wire rope, and when the steel wire rope suddenly loosens, the compression spring jacks up and jacks up the steel wire rope at the same time; the device also comprises a spring seat, a nut and a pull rope; the compression spring is arranged on the sliding base and sleeved with the upper spring seat, and the nut fixes the pull rope with the spring seat and the rocker arm respectively, so that the spring seat, the compression spring and the rocker arm form an elastic swinging mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810383620.6A CN108385748B (en) | 2018-04-26 | 2018-04-26 | Automatic tensioning structure of steel wire rope for grab bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810383620.6A CN108385748B (en) | 2018-04-26 | 2018-04-26 | Automatic tensioning structure of steel wire rope for grab bucket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108385748A CN108385748A (en) | 2018-08-10 |
| CN108385748B true CN108385748B (en) | 2023-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810383620.6A Active CN108385748B (en) | 2018-04-26 | 2018-04-26 | Automatic tensioning structure of steel wire rope for grab bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108385748B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962583B (en) * | 2020-08-18 | 2022-07-05 | 湖南鼎元机械有限公司 | Small-sized electric excavator with cable clamping device |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB484613A (en) * | 1936-09-18 | 1938-05-09 | Leschen & Sons Rope Company A | Improvements in apparatus for cutting wire rope, cable and the like |
| JP2001139280A (en) * | 1999-11-16 | 2001-05-22 | Sumitomo Constr Mach Co Ltd | Overload preventing device for construction machine |
| JP2003056000A (en) * | 2001-08-20 | 2003-02-26 | Komatsu Ltd | High lift crane vehicle |
| CN201158560Y (en) * | 2007-12-24 | 2008-12-03 | 宝山钢铁股份有限公司 | Safety vertical loop apparatus |
| CN101491173A (en) * | 2009-01-14 | 2009-07-29 | 漳州南冠文丰农业机械有限公司 | Inter-tillage supervisor start-up safety device |
| CN201437599U (en) * | 2009-06-25 | 2010-04-14 | 中国海洋石油总公司 | Device for dredging from interior of steel pipe pile |
| CN201785790U (en) * | 2010-09-09 | 2011-04-06 | 江苏佳佩环保机械设备有限公司 | Mobile hydraulic trash remover |
| WO2012045444A1 (en) * | 2010-10-05 | 2012-04-12 | Sennebogen Maschinenfabrik Gmbh | Industrial machine with chisel function |
| CN103225323A (en) * | 2012-01-31 | 2013-07-31 | 哈尼施费格尔技术公司 | Hoist rope guide |
| CN106829773A (en) * | 2017-03-29 | 2017-06-13 | 中国人民解放军63729部队 | A kind of bidirectionally limited device swung based on steel wire rope tension |
| CN206298279U (en) * | 2016-12-01 | 2017-07-04 | 山东鲁泰控股集团有限公司 | Anti-extrusion rope guider |
| CN107082326A (en) * | 2017-06-22 | 2017-08-22 | 山东科技大学 | A kind of steel wire rope draw off gear based on shock response |
| CN208363155U (en) * | 2018-04-26 | 2019-01-11 | 上海金泰工程机械有限公司 | Wirerope automatic tension structure for grab bucket |
-
2018
- 2018-04-26 CN CN201810383620.6A patent/CN108385748B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB484613A (en) * | 1936-09-18 | 1938-05-09 | Leschen & Sons Rope Company A | Improvements in apparatus for cutting wire rope, cable and the like |
| JP2001139280A (en) * | 1999-11-16 | 2001-05-22 | Sumitomo Constr Mach Co Ltd | Overload preventing device for construction machine |
| JP2003056000A (en) * | 2001-08-20 | 2003-02-26 | Komatsu Ltd | High lift crane vehicle |
| CN201158560Y (en) * | 2007-12-24 | 2008-12-03 | 宝山钢铁股份有限公司 | Safety vertical loop apparatus |
| CN101491173A (en) * | 2009-01-14 | 2009-07-29 | 漳州南冠文丰农业机械有限公司 | Inter-tillage supervisor start-up safety device |
| CN201437599U (en) * | 2009-06-25 | 2010-04-14 | 中国海洋石油总公司 | Device for dredging from interior of steel pipe pile |
| CN201785790U (en) * | 2010-09-09 | 2011-04-06 | 江苏佳佩环保机械设备有限公司 | Mobile hydraulic trash remover |
| WO2012045444A1 (en) * | 2010-10-05 | 2012-04-12 | Sennebogen Maschinenfabrik Gmbh | Industrial machine with chisel function |
| CN103225323A (en) * | 2012-01-31 | 2013-07-31 | 哈尼施费格尔技术公司 | Hoist rope guide |
| CN206298279U (en) * | 2016-12-01 | 2017-07-04 | 山东鲁泰控股集团有限公司 | Anti-extrusion rope guider |
| CN106829773A (en) * | 2017-03-29 | 2017-06-13 | 中国人民解放军63729部队 | A kind of bidirectionally limited device swung based on steel wire rope tension |
| CN107082326A (en) * | 2017-06-22 | 2017-08-22 | 山东科技大学 | A kind of steel wire rope draw off gear based on shock response |
| CN208363155U (en) * | 2018-04-26 | 2019-01-11 | 上海金泰工程机械有限公司 | Wirerope automatic tension structure for grab bucket |
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| Publication number | Publication date |
|---|---|
| CN108385748A (en) | 2018-08-10 |
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