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Tower crane turntable rotating body equipotential connection device

A connecting device and rotating body technology, which is applied in the direction of circuit devices, emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc., can solve problems such as failure to reach lightning protection grounding, large contact resistance, etc. , to achieve the effect of lightning protection, small contact resistance and good contact

Inactive Publication Date: 2009-06-03
上海骏福信息科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the presence of a large amount of paint and lubricating grease on the contact parts between the turntable rotating bodies of the tower crane equipment on the market, the contact resistance between the workpieces is relatively large, which cannot meet the standard requirements for lightning protection and grounding

Method used

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  • Tower crane turntable rotating body equipotential connection device
  • Tower crane turntable rotating body equipotential connection device
  • Tower crane turntable rotating body equipotential connection device

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Embodiment Construction

[0013] According to Figure 1, figure 2 , image 3 , the present invention includes a rotating body 1 and a chassis body 6, and the rotating body 1 rotates back relative to the chassis body 6. The conductive ring 5 is fixed on the chassis body 6 and keeps in good contact all the time; one end of the conductive curved rod 2 is fixed on the rotating body 1, and the other end is connected to one end of the conductive electrode 4, and the other end of the conductive electrode 4 is in contact with the conductive ring 5. The connection between the rod 2 and the conductive electrode 4 is provided with a compressed elastic body 3, and the conductive electrode 4 is in good contact with the conductive ring 5 under the elastic action of the compressed elastic body 3, so that the rotating body 1 and the chassis body 6 are in good contact with each other during the working process. The grounding resistance is still good and the grounding resistance is small, ensuring that the grounding res...

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PUM

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Abstract

The invention is a potential connecting device for a tower crane dial rotator, which comprises a chassis bodywork and a rotator. The invention is characterized in that the chassis bodywork is provided with a conductive ring; the conductive ring is tightly connected with the chassis bodywork; a conductive rod is arranged between the rotator and the conductive ring; one end of the conductive rod is fixedly connected with the rotator, while the other end has an elastic contact with the conductive ring. The invention has the advantages that the invention enables a small contact resistance between the chassis bodywork and rotator and ensures that the grounding resistance of the equipment is in line with the state standards; moreover, the invention can realize lightning protection of mechanical equipments because of fast lightning shunting.

Description

technical field [0001] The invention relates to lightning protection for tower crane equipment, and in particular discloses an equipotential connection device for a rotating body of a tower crane turntable. Background technique [0002] The most critical measure for mechanical equipment lightning protection facilities is that the grounding must be reliable, and all parts must be equipotentially connected. [0003] Due to the presence of a large amount of paint and lubricating grease on the contact parts between the turntable rotating bodies of the tower crane equipment on the market, the contact resistance between the workpieces is relatively large, which cannot meet the standard requirements for lightning protection and grounding. Contents of the invention [0004] The object of the present invention is to provide an equipotential connection device for a rotating body of a tower crane turntable with fast conduction shunting, safe use and low cost. [0005] The present in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/88B66C23/62H02H9/04
Inventor 陈小萍邵锦江高俊祥
Owner 上海骏福信息科技有限公司
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