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Special device for lifting large-tonnage wires for live work

A technology for wire lifting and live work, which is applied in the directions of transportation and packaging, cleaning methods and appliances, load suspension components, etc., can solve the problem of damaging the insulation layer of wires, etc., and achieve cost saving, low manufacturing cost, simple and compact structure Effect

Active Publication Date: 2016-04-06
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a special device for lifting large-tonnage wires for live work, which can solve the problem of relative movement between wires and damage to the insulation layer of wires

Method used

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  • Special device for lifting large-tonnage wires for live work
  • Special device for lifting large-tonnage wires for live work
  • Special device for lifting large-tonnage wires for live work

Examples

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preparation example Construction

[0015] The present invention also provides a preparation method of a charged cleaning agent for electrical equipment, the steps are as follows:

[0016] ①Add 1-2 parts of polyvinylpyrrolidone and 1-3 parts of pentaerythritol to the mixture of 15-25 parts of propylene glycol butyl ether and 4-6 parts of N-methyl-2-pyrrolidone, stir and heat up to 50-70℃ , keep warm for 1-2 hours, cool to 20-30°C to obtain mixed solution A, set aside;

[0017] ②Add 1-3 parts of dodecyl dimethyl quaternary ammonium betaine to the mixture of 10-20 parts of triethanolamine and 3-5 parts of ethylene glycol monobutyl ether, stir and heat up to 70-90°C , after 1-2 hours, cool to 20-30°C to obtain mixed solution B, set aside;

[0018] ③ mix the mixed solution A obtained in step ①, the mixed solution B obtained in step ②, 20-30 parts of trichlorethylene, 15-25 parts of carbon tetrachloride and 5-10 parts of N-fatty acyl glutamic acid ethanolamine salt to obtain Charge cleaning agent for electrical equ...

Embodiment 1

[0025] A charged cleaning agent for electrical equipment, consisting of the following components in parts by weight: 20 parts of trichlorethylene, 25 parts of carbon tetrachloride, 15 parts of propylene glycol butyl ether, 10 parts of triethanolamine, N-fatty acyl glutamic acid 5 parts of ethanolamine salt, 1 part of polyvinylpyrrolidone, 1 part of pentaerythritol, 4 parts of N-methyl-2-pyrrolidone, 3 parts of ethylene glycol monobutyl ether and 1 part of dodecyl dimethyl betaine.

Embodiment 2

[0027] A charged cleaning agent for electrical equipment, consisting of the following components in parts by weight: 30 parts of trichlorethylene, 15 parts of carbon tetrachloride, 25 parts of propylene glycol butyl ether, 20 parts of triethanolamine, N-fatty acyl glutamic acid 10 parts of ethanolamine salt, 2 parts of polyvinylpyrrolidone, 3 parts of pentaerythritol, 6 parts of N-methyl-2-pyrrolidone, 5 parts of ethylene glycol monobutyl ether and 3 parts of dodecyl dimethyl betaine.

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PUM

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Abstract

The invention discloses a special large-tonnage lead lifting device for hot-line work. The special large-tonnage lead lifting device comprises a connecting plate, wherein two first hooks are arranged at two sides of the connecting plate, respectively; the middle of the connecting plate is connected with a cylinder body of a main hydraulic cylinder; the top of a push rod of the main hydraulic rod is connected with a lifting lug; two sides of the lower surface of the connecting plate are hinged with the upper ends of connecting rods, respectively; the lower ends of the connecting rods are connected with vertical hydraulic cylinders; push rods of the vertical hydraulic cylinders are connected with second hooks; one sides, which face the main hydraulic cylinder, of the second hooks are hinged with push rods of horizontal hydraulic cylinders; the horizontal hydraulic cylinders are hinged with the main hydraulic cylinder. According to the invention, the horizontal hydraulic cylinders are arranged between the main hydraulic cylinder and the second hooks, and enable the relative position between the main hydraulic cylinder and the second lifting hooks to be stable, so that an insulation layer of a lead cannot be damaged because of the shaking of the second hooks which are used for hanging and loading the lead.

Description

technical field [0001] The invention relates to a special device for lifting wires, in particular to a special device for lifting large-tonnage wires for live work. Background technique [0002] The special device for lifting large-tonnage wires for live work is a device used to lift large-tonnage wires during high-altitude wire erection. The lower hook of the existing special device for lifting large-tonnage wires for live work During the lifting process, the insulation layer of the wire is often damaged due to the relative movement between the lower hook and the wire. The height and spacing of the lower hooks of the existing special device for lifting large-tonnage wires for live work cannot be adjusted. For wires with different wiring methods, only different types of special devices for lifting large-tonnage wires can be replaced, resulting in waste of cost. After the hook is used, it is easy to be polluted and dirty. The long-term accumulation of dirt will cause the agi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C1/22B08B7/04
CPCB08B7/04B66C1/34
Inventor 韩正新刘兴君郑连勇李敏徐元超蔡俊鹏王进陈子源王睿毕斌
Owner STATE GRID CORP OF CHINA