CN201400539Y - Variable-length waist rope device for crawler crane - Google Patents

Variable-length waist rope device for crawler crane Download PDF

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Publication number
CN201400539Y
CN201400539Y CN2009200690124U CN200920069012U CN201400539Y CN 201400539 Y CN201400539 Y CN 201400539Y CN 2009200690124 U CN2009200690124 U CN 2009200690124U CN 200920069012 U CN200920069012 U CN 200920069012U CN 201400539 Y CN201400539 Y CN 201400539Y
Authority
CN
China
Prior art keywords
arm
rope
jib
crane
sheave
Prior art date
Application number
CN2009200690124U
Other languages
Chinese (zh)
Inventor
蔡淳
崔铁军
Original Assignee
上海三一科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海三一科技有限公司 filed Critical 上海三一科技有限公司
Priority to CN2009200690124U priority Critical patent/CN201400539Y/en
Application granted granted Critical
Publication of CN201400539Y publication Critical patent/CN201400539Y/en

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Abstract

A variable-length waist rope device for a crawler crane is arranged between a pulling plate and an arm support, or between a stay cord and the arm support, or between a stay tube and the arm support.The variable-length waist rope device comprises an upper pulley block, a lower pulley block and a steel wire rope, wherein the upper pulley block comprises an upper fixed bracket and an upper pulley arranged on the upper fixed bracket through the support arm, and two ends of the fixed bracket are connected to the pulling plate, or the stay cord or the stay tube of the crane; the lower pulley blockcomprises a lower fixed bracket and a lower pulley arranged on the lower fixed bracket, and the two ends of the lower fixed bracket are connected to the arm support of the crane; and the steel wire rope is wound between the upper pulley and the lower pulley, and the other end thereof is connected to a windlass. In the utility model, the distance between the lower pulley block and the upper pulleyblock varies by tightening and loosening the steel wire rope, and therefore the purpose of length variation of the waist rope is achieved. Not only the problem of excessive deflexion during boom rising of the arm support can be solved, but also the difficulty that the arm support suffers from opposite acting force after boom raising can be solved.

Description

A kind of waist rope device of crawler crane variable-length
Technical field
The utility model relates to crawler crane, relates in particular to a kind of waist rope device of crawler crane variable-length.
Background technology
Adopt crawler crane waist rope device at present both at home and abroad, as Chinese patent notification number CN01217725 disclosed " weighing apparatus waist rope device is transferred in the flexible servo-actuated of crane arm support ", this device has a waist rope, waist rope one end is connected the midway location of jib with bearing pin, an other end connects the luffing assembly pulley, and the luffing assembly pulley connects jib the other end by the luffing drag-line.
This device is in the crane arm support amplitude changing process, and the waist rope makes jib keep tensioning state all along, has reduced the stressing conditions of jib, reduces the downwarp amplitude of jib, has overcome jib waist rope moment when lifting to play the weakness of tension.
This patent has only solved the excessive problem of amount of deflection when jib plays arm, because this structure makes jib keep tensioning state at amplitude changing process middle part of the side rope all along, so must cause behind the arm jib being had a pulling force backward, cause jib to be subjected to an opposition all the time, the force-bearing situation of jib is become badly, and this is the present common disadvantage of hoisting crane waist rope in the world.
Summary of the invention
The purpose of this utility model is to provide a kind of waist rope device of crawler crane variable-length, and the excessive problem of amount of deflection when playing arm that this device can reduce jib can not produce reversal interlocking relay again after playing arm, can not damage jib.
For achieving the above object, the technical solution of the utility model is:
The waist rope device of crawler crane variable-length, be arranged between arm-tie or stay cord or trombone slide and the jib, it comprises: the top sheave group, it comprises fixed support, is arranged at support bracket fastened top sheave by hold-down arm, and support bracket fastened two ends are connected on crane pulling plate or stay cord or the trombone slide on this; The downslide wheels comprise following fixed support, are arranged at down support bracket fastened lower sheave by hold-down arm, and the support bracket fastened two ends of this time are connected on the crane arm support; Steel rope is set around between top sheave, the lower sheave, and its other end is connected to a winch.
Further, the described fixed support two ends of going up are connected on crane pulling plate or stay cord or the trombone slide by bearing pin; Described fixed support two ends are down passed through rope chain or stay cord or arm-tie respectively and are connected with jib.
Described upper and lower fixed support is arcuation.
In addition, jib described in the utility model is provided with dragging roller, leading sheave, and described steel rope passes from jib, is connected to a winch through dragging roller, leading sheave.
Described winch is arranged on the crawler crane mainframe.
The utility model is by loosening and tightening up steel rope, and the distance between top sheave group and the downslide wheels changes, thereby reaches the adjustable length purpose of waist rope, and then reduces the jib amount of deflection, makes jib not bear reversal interlocking relay after playing arm.
The beneficial effects of the utility model:
The excessive problem of amount of deflection when playing arm that the utility model both can solve jib can solve the difficult problem that jib behind the arm is subjected to opposition again.
1. the utility model is when crawler crane boom plays arm, provide pulling force to reduce the jib amount of deflection, loosen after playing arm, jib is not produced additional counter-force, and rise in arm, the amplitude changing process at crawler crane boom in the prior art, the waist rope makes jib keep tensioning state all along, makes jib be subjected to antagonistic force all the time, and it is abominable that the jib force-bearing situation becomes;
2. propulsion source one elevator of the utility model waist rope is independently, and is the traction elevator and the shared propulsion source of principal arm luffing of waist rope in the prior art, can not control separately;
3. the utility model waist rope deployable and collapsible structure is a suspension type, can dismantle at any time, and prior art middle part of the side rope is connected inseparable with the luffing steel rope.
Description of drawings
Fig. 1 is the scheme drawing of the utility model one embodiment;
Fig. 2 is the enlarged diagram of A portion among Fig. 1;
Fig. 3 is the enlarged diagram of B portion among Fig. 1;
Fig. 4 is the enlarged diagram of C portion among Fig. 1;
Fig. 5 is the lateral plan of Fig. 4;
Fig. 6 is the scheme drawing of the utility model waist rope relaxation state;
Fig. 7 tightens up the scheme drawing of state for the utility model waist rope.
The specific embodiment
Describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
See also Fig. 1 to Fig. 7, the waist rope device of a kind of crawler crane variable-length of the present utility model, one end are arranged near hoisting crane 8 jibs, 4 amount of deflection maximums or its, and the other end is connected in arm-tie 5 (or stay cord or trombone slide).
Described waist rope device 2, it is a suspension type, comprises, top sheave group 21, this top sheave group comprise fixed support 211, are arranged at the top sheave 212 of fixed support 211 by hold-down arm 213; The two ends that should go up fixed support 211 are connected on crane pulling plate or stay cord or the trombone slide by bearing pin 214; Downslide wheels 22 comprise following fixed support 221, are arranged at down the lower sheave 222 of fixed support 221 by hold-down arm 223; The two ends of this time fixed support 221 are connected on the crane arm support 4 by rope chain 224; Steel rope 1 is set around between top sheave 212, the lower sheave 222, and its other end is connected to a winch 3.
Described upward fixed support 211, following fixed support 221 are arcuation; Described jib 4 is provided with dragging roller 6, leading sheave 7, and described steel rope 1 passes in jib 4, is connected to a winch 3 through dragging roller 6, leading sheave 7.
When 4 arms of crane arm support, arm-tie 5 one ends connect the A type frame 9 (or mast) of hoisting crane 8, the other end connects jib 4 heads, and the distance between arm-tie 5 and the jib 4 changes, at this moment, tighten up or loosen steel rope 1 by winch 3 control, make the distance between top sheave group 21, the downslide wheels 22 change, thereby, reach waist rope device 2 adjustable length purposes, and then, make jib 4 when playing arm, can not bear reversal interlocking relay.

Claims (5)

1. the waist rope device of crawler crane variable-length is arranged between arm-tie or stay cord or trombone slide and the jib, it is characterized in that, comprising:
The top sheave group, it comprises fixed support, is arranged at support bracket fastened top sheave by hold-down arm, and support bracket fastened two ends are connected on crane pulling plate or stay cord or the trombone slide on this;
The downslide wheels comprise following fixed support, are arranged at down support bracket fastened lower sheave by hold-down arm, and the support bracket fastened two ends of this time are connected on the crane arm support;
Steel rope is set around between top sheave, the lower sheave, and its other end is connected to a winch.
2. the waist rope device of crawler crane variable-length as claimed in claim 1 is characterized in that, the described fixed support two ends of going up are connected on crane pulling plate or stay cord or the trombone slide by bearing pin; Described fixed support two ends are down passed through rope chain or stay cord or arm-tie respectively and are connected with jib.
3. the variable waist rope device of crawler crane as claimed in claim 1 is characterized in that described upper and lower fixed support is arcuation.
4. the waist rope device of crawler crane variable-length as claimed in claim 1 is characterized in that described jib is provided with dragging roller, leading sheave, and described steel rope passes from jib, is connected to a winch through dragging roller, leading sheave.
5. the waist rope device of crawler crane variable-length as claimed in claim 1 is characterized in that described winch is arranged on the crawler crane mainframe.
CN2009200690124U 2009-03-18 2009-03-18 Variable-length waist rope device for crawler crane CN201400539Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200690124U CN201400539Y (en) 2009-03-18 2009-03-18 Variable-length waist rope device for crawler crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200690124U CN201400539Y (en) 2009-03-18 2009-03-18 Variable-length waist rope device for crawler crane

Publications (1)

Publication Number Publication Date
CN201400539Y true CN201400539Y (en) 2010-02-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200690124U CN201400539Y (en) 2009-03-18 2009-03-18 Variable-length waist rope device for crawler crane

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CN (1) CN201400539Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101525108B (en) * 2009-03-18 2010-10-13 上海三一科技有限公司 Method and device for reducing over-high deflection in amplitude changing process of caterpillar-band crane arm support
CN103112786A (en) * 2013-02-06 2013-05-22 徐工集团工程机械股份有限公司 Auxiliary bracing connection device for carrying arm support
CN105035977A (en) * 2015-09-10 2015-11-11 徐工集团工程机械股份有限公司 Waist line device, cantilever crane bearing device and crane

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101525108B (en) * 2009-03-18 2010-10-13 上海三一科技有限公司 Method and device for reducing over-high deflection in amplitude changing process of caterpillar-band crane arm support
CN103112786A (en) * 2013-02-06 2013-05-22 徐工集团工程机械股份有限公司 Auxiliary bracing connection device for carrying arm support
CN103112786B (en) * 2013-02-06 2015-06-24 徐工集团工程机械股份有限公司 Auxiliary bracing connection device for carrying arm support
CN105035977A (en) * 2015-09-10 2015-11-11 徐工集团工程机械股份有限公司 Waist line device, cantilever crane bearing device and crane
CN105035977B (en) * 2015-09-10 2020-06-02 徐工集团工程机械股份有限公司 Waist rope device, arm support supporting device and crane

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GR01 Patent grant
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 201200 NO. 319, CHUANDA ROAD, CHUANSHA ECNOMIC PARK, PUDONG NEW DISTRICT, SHANGHAI TO: 215300 HUANCHENG EAST ROAD, KUNSHAN DEVELOPMENT ZONE, JIANGSU PROVINCE

ASS Succession or assignment of patent right

Owner name: KUNSHAN SANY MACHINERY CO., LTD.

Free format text: FORMER OWNER: SHANGHAI SANY TECHNOLOGY CO., LTD.

Effective date: 20110329

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Effective date of registration: 20110329

Address after: 215300 East Ring Road, Kunshan Development Zone, Jiangsu

Patentee after: Kunshan Sany Machinery Co., Ltd.

Address before: 201200 Shanghai City Sichuan Road Pudong New Area Chuansha economic Park No. 319

Patentee before: Shanghai Sany Technology Co., Ltd.

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 215300 SUZHOU, JIANGSU PROVINCE TO: 313028 HUZHOU, ZHEJIANG PROVINCE

ASS Succession or assignment of patent right

Owner name: ZHEJIANG SANY EQUIPMENT CO., LTD.

Free format text: FORMER OWNER: KUNSHAN SANY MACHINERY CO., LTD.

Effective date: 20140519

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20140519

Address after: 313028 building, floor 2, standard factory building, Cao Yi village, eight Li Town, Huzhou, Zhejiang

Patentee after: Zhejiang Sany Equipment Co., Ltd.

Address before: 215300 East Ring Road, Kunshan Development Zone, Jiangsu

Patentee before: Kunshan Sany Machinery Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100210

Termination date: 20180318