CN202687826U - Self-balancing system of large-scale luffing jib tower crane pulling arm pulley group - Google Patents

Self-balancing system of large-scale luffing jib tower crane pulling arm pulley group Download PDF

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Publication number
CN202687826U
CN202687826U CN 201220384609 CN201220384609U CN202687826U CN 202687826 U CN202687826 U CN 202687826U CN 201220384609 CN201220384609 CN 201220384609 CN 201220384609 U CN201220384609 U CN 201220384609U CN 202687826 U CN202687826 U CN 202687826U
Authority
CN
China
Prior art keywords
tower crane
scale
counter weight
pulley group
luffing
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN 201220384609
Other languages
Chinese (zh)
Inventor
谢国涛
周勇
聂锋
李绍俊
张�浩
常石
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
No3 Construction Co Sichuan Province
Original Assignee
Sichuan Jincheng Construction Machinery Co Ltd
SICHUAN NO3 CONSTRUCTION ENGINEERING Co
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 Sichuan Jincheng Construction Machinery Co Ltd, SICHUAN NO3 CONSTRUCTION ENGINEERING Co filed Critical Sichuan Jincheng Construction Machinery Co Ltd
Priority to CN 201220384609 priority Critical patent/CN202687826U/en
Application granted granted Critical
Publication of CN202687826U publication Critical patent/CN202687826U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a self-balancing system of a large-scale luffing jib tower crane pulling arm pulley group, and relates to the technical field of constructional engineering machinery. The self-balancing system of the large-scale luffing jib tower crane pulling arm pulley group aims to solve the technical problems like that during a luffing process of a prior large-scale luffing jib tower crane, luffing steel ropes are prone to mutual friction, the service life of the steel ropes are short, and an accident is easy to happen. According to the self-balancing system of the large-scale luffing jib tower crane pulling arm pulley group, a balancing rod (7) is arranged below one end of a shell body of the pulling arm pulley group structure (1), wherein the end of the shell body of the pulling arm pulley group structure (1) is connected with a pulling rod. The balancing rod (7) is composed of a welding sleeve and a counter weight rod, and open pores with same diameters are evenly arranged on the surfaces of the welding sleeve and the counter weight rod in the axial direction with equal intervals. The counter weight rod is a steel tube (11) provided with a counter weight block (12) at one end. The external diameter of the counter weight rod is slightly smaller than the external diameter of the welding sleeve, the counter weight rod is arranged inside the welding sleeve, and the mutual position of the counter weight rod and the welding sleeve is locked through cotters (104) penetrating through the open pores.

Description

Large-scale arm tower crane torque arm assembly pulley self-balancing system
Technical field
The utility model patent relates to the constructional engineering machinery technical field, particularly with the hooklift of the large-scale arm tower crane of counterweight.
Background technology
Crane arm deadweight and the hoisting capacity of large-scale arm tower crane are larger, therefore need the multiplying power of luffing rope is increased, owing to considering the Rong Shengliang of luffing mechanism, with the multiplying power general control of luffing rope between 6 ~ 10, after luffing rope multiplying power increases, namely need to realize by increasing assembly pulley, when torque arm rope pulley group quantity increases, very easily occurring overbalance in the use causes torque arm steel rope and pulley angle excessive, wearing and tearing to the torque arm steel rope are very large, and this problem frequently occurs in the movable arm tower crane use at home.
Variable-amplitude steel wire rope one end is directly drawn by luffing mechanism, walk around dead sheave group and luffing assembly pulley after the other end then be fixed on the body of the tower of tower crane.Existing luffing torque arm assembly pulley one end passes through side by side one group of pulley of bearing pin, with a housing bearing pin is fixed, the housing other end connects the torque arm pull bar, in the operating mode of reality, when steel rope enters assembly pulley, entered by the top of pulley, then rope stretching just can be from the below of pulley, tower machine luffing is done the time spent, and assembly pulley will run-off the straight, and the rope-in end of assembly pulley upwards, the rope-out end is reversed downwards, when if this kind phenomenon is serious, can cause phase mutual friction between the steel rope, the wearing and tearing steel rope, shorten its service life, also can produce pulley and destroy, rope skipping phenomenon occur, cause safety misadventure.
Summary of the invention
The utility model be intended to solve existing large-scale arm tower crane in amplitude changing process, exist the easy phase mutual friction of variable-amplitude steel wire rope, service life of steel wire rope short, easily cause the technical matters such as safety misadventure, with provide a kind of can automatically regulate effectively avoid the luffing assembly pulley because of the torque arm rope into and out of the unbalanced large-scale arm tower crane torque arm assembly pulley self-balancing system of end torque arm pulley.
The purpose of this utility model is achieved through the following technical solutions.
Large-scale arm tower crane torque arm assembly pulley self-balancing system of the present utility model, the below of torque arm pulley block structure 1 housing cylinder lever connecting rod one end is provided with trammel beam 7, trammel beam 7 is made of welded sleeve and weight linear meter, welded sleeve and the axial even perforate equidistant and that the aperture is identical that is furnished with in weight linear meter surface, weight linear meter is that an end is with the steel pipe 11 of clump weight 12, the weight linear meter external diameter is slightly less than welded sleeve and is located in the welded sleeve, and mutual alignment between the two is by spring cotter 104 lockings of passing aforementioned perforate.
The beneficial effect of the large-scale arm tower crane torque arm of the utility model assembly pulley self-balancing system:
1, increases a counterweight in torque arm assembly pulley side, so just can when its discontinuity equalization, produce a reverse moment, to reach the balance of arm tower crane torque arm luffing assembly pulley integral body, reach the effect of not shaking, not trembling;
2, the utility model is easy to make, and is safe and reliable, can solve the torsion problem of torque arm device, the complete machine safety that has improved arm tower crane;
3, variable-amplitude steel wire rope is played a protective effect, the luffing assembly pulley is played a protective role, increase its service life, save enterprise cost.
Description of drawings
Fig. 1 luffing assembly pulley front view
Fig. 2 is that the A-A of Fig. 1 is to cut-away illustration
Fig. 3 is that the B-B of Fig. 1 is to cut-away illustration
Fig. 4 weight linear meter structural representation
Fig. 5 welded sleeve structural representation
Fig. 6 the utility model is the application site schematic diagram in the tower machine
The number in the figure explanation:
1 torque arm pulley block structure, 2 bearing pins, 3 clamps, 4 spacers one, 5 spacers two, 6 pulley assemblies, 7 trammel beams, 11 steel pipes, 12 clump weights, 13 large-scale arm tower crane torque arm assembly pulley self-balancing systems, 101 oil nozzles, 102 bolts, 103 bullet pads, 104 spring cotters
The specific embodiment
The utility model detailed structure, application principle, effect and effect with reference to accompanying drawing 1-6, are explained by following embodiment.
Large-scale arm tower crane torque arm assembly pulley self-balancing system of the present utility model, the below of torque arm pulley block structure 1 housing cylinder lever connecting rod one end is provided with trammel beam 7, trammel beam 7 is made of welded sleeve and weight linear meter, welded sleeve and the axial even perforate equidistant and that the aperture is identical that is furnished with in weight linear meter surface, weight linear meter is that an end is with the steel pipe 11 of clump weight 12, the weight linear meter external diameter is slightly less than welded sleeve and is located in the welded sleeve, and mutual alignment between the two is by spring cotter 104 lockings of passing aforementioned perforate.
In tower machine installation process, connect by variable-amplitude steel wire rope with the luffing assembly pulley of the welded sleeve of size such as equidistantly being welded with one, in welded sleeve, insert weight linear meter, regulate after the position of weight linear meter, be fixed with spring cotter 104.
When arm tower crane begins the luffing motion; steel rope begins from reel; walk around the dead sheave group on the cat head; penetrate the luffing assembly pulley; and then the dead sheave group on the wraparound cat head; penetrate the luffing assembly pulley, so repeatedly, just realized the multiplying power feature of variable-amplitude steel wire rope; last steel rope lays out the luffing assembly pulley; be fixed on the cat head of arm tower crane, the moment that is produced by weight linear meter can in and steel rope in the eccentric moment of luffing assembly pulley, reach and do not shake; the effect of not trembling; improved the complete machine safety of arm tower crane; variable-amplitude steel wire rope played with the luffing assembly pulley playing a protective role, increase its service life, save enterprise cost.
In sum, the large-scale arm tower crane torque arm of the utility model assembly pulley self-balancing system, have can automatically regulate effectively avoid the luffing assembly pulley because of the torque arm rope into and out of technical characterstics such as end torque arm pulley overbalances, improve the complete machine safety of arm tower crane, can be widely used in the arm tower crane correlative technology field.

Claims (1)

1. large-scale arm tower crane torque arm assembly pulley self-balancing system, it is characterized in that: the below of torque arm pulley block structure (1) housing cylinder lever connecting rod one end is provided with trammel beam (7), trammel beam (7) is made of welded sleeve and weight linear meter, welded sleeve and the axial even perforate equidistant and that the aperture is identical that is furnished with in weight linear meter surface, weight linear meter is that an end is with the steel pipe (11) of clump weight (12), the weight linear meter external diameter is slightly less than welded sleeve and is located in the welded sleeve, and mutual alignment is between the two locked by the spring cotter that passes aforementioned perforate (104).
CN 201220384609 2012-08-06 2012-08-06 Self-balancing system of large-scale luffing jib tower crane pulling arm pulley group Expired - Fee Related CN202687826U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220384609 CN202687826U (en) 2012-08-06 2012-08-06 Self-balancing system of large-scale luffing jib tower crane pulling arm pulley group

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220384609 CN202687826U (en) 2012-08-06 2012-08-06 Self-balancing system of large-scale luffing jib tower crane pulling arm pulley group

Publications (1)

Publication Number Publication Date
CN202687826U true CN202687826U (en) 2013-01-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220384609 Expired - Fee Related CN202687826U (en) 2012-08-06 2012-08-06 Self-balancing system of large-scale luffing jib tower crane pulling arm pulley group

Country Status (1)

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CN (1) CN202687826U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107804806A (en) * 2016-09-09 2018-03-16 J.C.班福德挖掘机有限公司 Pulley assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107804806A (en) * 2016-09-09 2018-03-16 J.C.班福德挖掘机有限公司 Pulley assembly
CN107804806B (en) * 2016-09-09 2022-04-15 J.C.班福德挖掘机有限公司 Pulley assembly

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C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Xie Guotao

Inventor after: Zhou Yong

Inventor after: Nie Feng

Inventor after: Li Shaojun

Inventor after: Zhang Hao

Inventor after: Chang Shi

Inventor after: Liang Jie

Inventor before: Xie Guotao

Inventor before: Zhou Yong

Inventor before: Nie Feng

Inventor before: Li Shaojun

Inventor before: Zhang Hao

Inventor before: Chang Shi

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: XIE GUOTAO ZHOU YONG NIE FENG LI SHAOJUN ZHANG HAO CHANG SHI TO: XIE GUOTAO ZHOU YONG NIE FENG LI SHAOJUN ZHANG HAO CHANG SHI LIANG JIE

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TR01 Transfer of patent right

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Address after: The 8 group of Jinniu District Taurus Township village of Chengdu City, Sichuan province 610091 Chunfeng

Patentee after: SICHUAN JINCHENG CONSTRUCTION MACHINERY Co.,Ltd.

Address before: 610051, No. 162, Section 1, ring road, Chengdu, Sichuan

Patentee before: NO.3 CONSTRUCTION COMPANY SICHUAN PROVINCE

Patentee before: SICHUAN JINCHENG CONSTRUCTION MACHINERY Co.,Ltd.

ASS Succession or assignment of patent right

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Owner name: SICHUAN NO. 3 CONSTRUCTION ENGINEERING COMPANY

Free format text: FORMER OWNER: SICHUAN JINCHENG BUILDING MACHINERY CO., LTD.

Effective date: 20150619

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

Effective date of registration: 20150619

Address after: 610051, No. 162, Section 1, ring road, Chengdu, Sichuan

Patentee after: NO.3 CONSTRUCTION COMPANY SICHUAN PROVINCE

Patentee after: SICHUAN JINCHENG CONSTRUCTION MACHINERY Co.,Ltd.

Address before: The 8 group of Jinniu District Taurus Township village of Chengdu City, Sichuan province 610091 Chunfeng

Patentee before: SICHUAN JINCHENG CONSTRUCTION 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: 20130123

Termination date: 20210806