CN202936109U

CN202936109U - Pull rod type steel wire rope balancing device for crane

Info

Publication number: CN202936109U
Application number: CN 201220643392
Authority: CN
Inventors: 夏萍
Original assignee: Yinchuan Silver Heavy (group) Crane Co Ltd
Current assignee: Yinchuan Silver Heavy (group) Crane Co Ltd
Priority date: 2012-11-29
Filing date: 2012-11-29
Publication date: 2013-05-15
Anticipated expiration: 2022-11-29

Abstract

The utility model relates to a pull rod type steel wire rope balancing device for a crane. The pull rod type steel wire rope balancing device comprises a balance-axle bracket and two steel wire rope mechanisms, and is characterized in that two support shafts and balance swing frames swinging around the support shafts are arranged on the balance-axle bracket, the balance swing frames are connected by a pull rod, the steel wire rope mechanisms are arranged at the lower ends of the balance swing frames. According to the pull rod type steel wire rope balancing device for the crane, the two balance swing frames replace one support rod in the prior art, and the stress balance of steel wire ropes at the two sides can be realized by connecting the two balance swing frames through the pull rod and then swinging the two balance swing frames around the support shafts respectively by certain angle. The size of each balance swing frame is smaller than a balance rod, the motion traces of the balance swing frames are in the size range, and thereby other space can not be occupied, influence on the ambient environment is less, and the safety coefficient is high; and after the two balance swing frames are adopted, the force is divided into two, the sizes of the support shafts are small, corresponding parts are small, the occupied space position is few, the manufacturing is easy, and the investment cost of a factory can be accordingly lowered.

Description

Hoisting crane rod-pulling type steel wire rope balancing device

Technical field

The utility model relates to the hoisting crane field of mechanical technique, particularly relates to a kind of hoisting crane rod-pulling type steel wire rope balancing device.

Background technology:

The steel rope equalizing gear of hoisting crane usually as shown in Figure 1, the employing lever balance theory is realized, namely utilize a balance shaft and trammel beam to regulate the stressed of both sides steel rope, its operation logic is: when variant, trammel beam is realized both sides steel rope stress balance by swinging certain angle around balance shaft when both sides steel rope unbalance stress or length.Due to the balancing length of a member and stressed concentrating, make balance shaft and balance shaft support all large, installation easy and the fixed pulley group produces to be interfered, and usually has to they are piled up to get up to place; In addition because trammel beam is long, cause in lever work the amplitude of oscillation large, so not only the motion position of getting up to take up room is large, needs the factory building superjacent air space reserved large, and the factory building cost is just high, and easily produces potential safety hazard.

Summary of the invention:

The purpose of this utility model is to overcome the defective of above-mentioned prior art, provides a kind of effective solution lever amplitude of oscillation large problem, takes up room thereby dwindle motion, removes potential safety hazard, reduces the hoisting crane rod-pulling type steel wire rope balancing device of factory building cost.

For realizing that the technical scheme that above-mentioned utility model purpose is taked is:

A kind of hoisting crane rod-pulling type steel wire rope balancing device, comprise balance shaft support and two cover steel rope mechanisms, it is characterized in that: the balance rocker that two cover pivot shafts is installed on described balance shaft support and swings around pivot shaft, connect by pull bar between the balance rocker, steel rope mechanism is arranged on balance rocker lower end.

The utility model adopts two balance rockers to replace a strut bar of the prior art, is pullling mutually the rear stress balance of realizing the both sides steel rope around the certain angle of pivot shaft swing separately by the pull bar that connects them.Because balance rocker size is little more many than trammel beam, its path of motion does not take other space in its range of sizes, and little on the ambient environment impact, safety factor increases; After adopting simultaneously two balance rockers, power is separated into two, and the pivot shaft size is just little, and corresponding parts are all little, and the locus that takies also diminishes, and easily processing and fabricating, also reduced the plant investment cost accordingly.

Description of drawings:

Fig. 1 is the structural representation sketch of prior art steel wire rope balancing device;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the structural representation sketch of the utility model hoisting crane rod-pulling type steel wire rope balancing device;

Fig. 4 is the left view of Fig. 3.

The specific embodiment:

The utility model hoisting crane rod-pulling type steel wire rope balancing device comprises pivot shaft support 5 and two cover steel rope mechanisms 2, and the balance rockers 4 that two cover pivot shafts 3 are installed on described pivot shaft support 5 and swing around pivot shaft connect by pull bar 7 between balance rocker 4.A cover steel rope mechanism 2 is installed by the axle connection mode in each balance rocker 4 lower ends.When both sides steel rope unbalance stress or length when variant, thereby then two balance rockers 4 are being pullled each other by pull bar 7 and are swung certain angle around separately pivot shaft and realize both sides steel rope stress balance.In this process, only in its range of sizes, therefore potential safety hazard is little, and it is highly little to take up room for the running orbit 6 of balance rocker, and fixed pulley group 1 also can be placed side by side with it at this moment.

Claims

1. hoisting crane rod-pulling type steel wire rope balancing device, comprise that balance shaft support (5) and two overlaps steel rope mechanism (2), it is characterized in that: the balance rocker (4) that two cover pivot shafts (3) is installed on described balance shaft support (5) and swings around pivot shaft (3), connect by pull bar (7) between balance rocker (4), steel rope mechanism (2) is arranged on balance rocker (4) lower end.