CN215358250U

CN215358250U - Movable fastening trolley for connecting bolt of transmission chain of wind generating set

Info

Publication number: CN215358250U
Application number: CN202120768999.XU
Authority: CN
Inventors: 黄昆; 田洪海; 薛振峰; 黄鹏; 谢福涛
Original assignee: MingYang Smart Energy Group Co Ltd
Current assignee: MingYang Smart Energy Group Co Ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-12-31
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a movable fastening trolley for a connecting bolt of a transmission chain of a wind generating set, which comprises a frame, universal wheels, a guide rail bracket, a balancing weight, a sliding shoe, a pulley component, a steel wire rope, a hoop, a stretcher, an upper limiting buffer and a lower limiting buffer; the two guide rails are vertically arranged on two inner side walls below a middle cross beam of the frame through guide rail brackets respectively; the counterweight block is arranged on the frame and positioned between the two guide rails, four sliding shoes are symmetrically arranged on two sides of the counterweight block, and the two sliding shoes positioned on the same side are slidably arranged on the same guide rail; the pulley assemblies are arranged on two sides of the frame in a bilateral symmetry mode, and each pulley assembly is wound with a steel wire rope, namely the starting end of each steel wire rope is connected with the corresponding sliding shoe, and the tail end of each steel wire rope is connected with one end of the corresponding hoop; the stretcher is fixed between the hoops. The utility model can effectively solve the problems of low installation efficiency and high labor intensity of workers in the fastening process of the connecting bolt of the transmission chain.

Description

Movable fastening trolley for connecting bolt of transmission chain of wind generating set

Technical Field

The utility model relates to the technical field of connecting bolts of a transmission chain of a wind generating set, in particular to a movable fastening trolley for connecting bolts of the transmission chain of the wind generating set.

Background

The connection of present fan major component all uses the vice connection of threaded connection, and in the bolt-up process, used instrument is hydraulic wrench and elongator respectively, and the essence difference between them lies in that final axial force stability and dispersion are different, and the deviation that leads to the pretightning force is great, and the fastening mode of difference brings danger coefficient also different in fan operation in-process, so the unit is preferentially considered when designing bolted connection mode and is used the elongator to fasten the bolt, uses the elongator to carry out the operation in horizontal direction and vertical direction promptly. The self weight of the stretcher is about 20kg, and the stretcher always needs lifting operation of constructors in the construction process, so that the labor intensity is high, the physical energy consumption is high, and continuous operation brings great challenges to the physical quality of the constructors. Meanwhile, the phenomena of low production efficiency, unbalanced production of each station, high invisible cost increase of enterprises and the like are brought, and the production capacity is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, provides a movable fastening trolley for a connecting bolt of a transmission chain of a wind generating set, and can effectively solve the problems of low installation efficiency and high labor intensity of workers in the fastening process of the connecting bolt of the transmission chain of the wind generating set.

In order to achieve the purpose, the technical scheme provided by the utility model is as follows: a movable fastening trolley for a connecting bolt of a transmission chain of a wind generating set comprises a frame, universal wheels, a guide rail bracket, a balancing weight, a sliding shoe, a pulley component, a steel wire rope, a hoop, a stretcher, an upper limiting buffer and a lower limiting buffer; the universal wheels are arranged at the bottom of the frame; the two guide rails are vertically arranged on two inner side walls below a middle cross beam of the frame through guide rail brackets respectively; the counterweight block is arranged on the frame and positioned between the two guide rails, four sliding shoes are symmetrically arranged on two sides of the counterweight block, and the two sliding shoes positioned on the same side are slidably arranged on the same guide rail; the pulley assemblies are provided with two bilaterally symmetrical frames, each pulley assembly comprises four pulleys, namely a first large pulley arranged at the top of the side edge of each frame, a second small pulley arranged at the top of the side edge of each frame and positioned beside the first large pulley, a third large pulley arranged at the bottom of the side edge of each frame and a fourth large pulley arranged on a middle cross beam of each frame, each pulley assembly is wound with a steel wire rope, namely the starting end of each steel wire rope is connected with a sliding shoe, and is sequentially wound on the fourth large pulley, the third large pulley, the first large pulley and the second small pulley, and the tail end of each steel wire rope is connected with one end of a hoop; the stretcher is fixed between the hoops and assists in lifting or descending of the stretcher through the up-and-down sliding of the balancing weight; an upper limiting buffer is arranged below a middle cross beam of the frame, and a lower limiting buffer is arranged above the bottom of the frame and used for limiting the up-down stroke and speed of the balancing weight.

Furthermore, a protective cover is arranged around the frame.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

the trolley has the advantages of simple structure, convenience in use and the like, is suitable for stretching most fasteners in the vertical direction, has wide applicability, can effectively improve the assembly efficiency, reduce the labor intensity and avoid the need of continuously lifting the stretcher in the working process of workers; and the use of the trolley has positive propulsion effect on the aspects of improving the production efficiency, improving the quality and stabilizing personnel.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a schematic structural view of the present invention for installing the protective cover.

Detailed Description

The present invention will be further described with reference to the following specific examples.

As shown in fig. 1 and 2, the movable fastening trolley for the connecting bolt of the transmission chain of the wind generating set in the embodiment includes a frame 1, a universal wheel 2, a guide rail 3, a guide rail bracket 4, a counterweight 5, a sliding shoe 6, a pulley assembly, a steel wire rope 8, a hoop 9, a stretcher 10, an upper limit buffer 11 and a lower limit buffer 12; the universal wheels 2 are arranged at the bottom of the frame 1, so that the trolley can move conveniently; the two guide rails 3 are vertically arranged on two inner side walls below the cross beam 101 in the frame 1 through guide rail brackets 4 respectively; the counterweight 5 is arranged on the frame 1 and positioned between the two guide rails 3, four sliding shoes 6 are symmetrically arranged on two sides of the counterweight 5, and the two sliding shoes 6 positioned on the same side are slidably arranged on the same guide rail 3 to guide the movement of the counterweight 5; the pulley assemblies are provided with two bilateral symmetry sides provided with the frame 1, wherein each pulley assembly comprises four pulleys, namely a first large pulley 701 arranged at the top of the side edge of the frame 1, a second small pulley 702 arranged at the top of the side edge of the frame 1 and positioned beside the first large pulley 701, a third large pulley 703 arranged at the bottom of the side edge of the frame 1 and a fourth large pulley 704 arranged on a middle cross beam 101 of the frame 1, each pulley assembly is wound with a steel wire rope 8, namely the starting end of the steel wire rope 8 is connected with the sliding shoe 6 and sequentially wound on the fourth large pulley 704, the third large pulley 703, the first large pulley 701 and the second small pulley 702, the tail end of the steel wire rope is connected with one end of the hoop 9, and the steel wire rope 8 is not interfered with the guide rail 3; the stretcher 10 is fixed between the hoops 9, and the lifting or descending of the stretcher 10 is assisted by the up-and-down sliding of the balancing weight 5, so that the labor intensity of operators is reduced; an upper limiting buffer 11 is arranged below a middle cross beam 101 of the frame 1, and a lower limiting buffer 12 is arranged above the bottom of the frame 1 and used for limiting the up-down stroke and speed of the balancing weight 5.

In addition, in order to protect the personal safety of the operator, as shown in fig. 3, a protective cover 13 may be installed around the frame 1 to prevent the loosening of the connecting members inside the frame 1.

The portable fastening dolly that is used for wind generating set driving chain connecting bolt of this embodiment is the movable, does not need artifical transport, only needs to move the dolly to the station bottom, through the dead weight of its upper balance weight 5, and operating personnel only need lift gently and promote elongator 10 to the fastening surface, and after the fastening was accomplished, rely on elongator 10 dead weight to make its separation fastening again, wait to move this dolly to placing the district after all bolt-up were accomplished.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that variations based on the shape and principle of the present invention should be covered within the scope of the present invention.

Claims

1. The utility model provides a portable fastening dolly that is used for wind generating set driving chain connecting bolt which characterized in that: the device comprises a frame, universal wheels, a guide rail bracket, a balancing weight, a sliding shoe, a pulley component, a steel wire rope, a hoop, a stretcher, an upper limiting buffer and a lower limiting buffer; the universal wheels are arranged at the bottom of the frame; the two guide rails are vertically arranged on two inner side walls below a middle cross beam of the frame through guide rail brackets respectively; the counterweight block is arranged on the frame and positioned between the two guide rails, four sliding shoes are symmetrically arranged on two sides of the counterweight block, and the two sliding shoes positioned on the same side are slidably arranged on the same guide rail; the pulley assemblies are provided with two bilaterally symmetrical frames, each pulley assembly comprises four pulleys, namely a first large pulley arranged at the top of the side edge of each frame, a second small pulley arranged at the top of the side edge of each frame and positioned beside the first large pulley, a third large pulley arranged at the bottom of the side edge of each frame and a fourth large pulley arranged on a middle cross beam of each frame, each pulley assembly is wound with a steel wire rope, namely the starting end of each steel wire rope is connected with a sliding shoe, and is sequentially wound on the fourth large pulley, the third large pulley, the first large pulley and the second small pulley, and the tail end of each steel wire rope is connected with one end of a hoop; the stretcher is fixed between the hoops and assists in lifting or descending of the stretcher through the up-and-down sliding of the balancing weight; an upper limiting buffer is arranged below a middle cross beam of the frame, and a lower limiting buffer is arranged above the bottom of the frame and used for limiting the up-down stroke and speed of the balancing weight.

2. The mobile fastening trolley for the connecting bolt of the transmission chain of the wind generating set according to claim 1, is characterized in that: and a protective cover is arranged around the frame.