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double row pulley

A pulley pulley, double-row technology, applied in the direction of overhead lines/cable equipment, etc., can solve problems such as falling off and easy to detach from transmission and transformation wires

Inactive Publication Date: 2016-08-03
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to overhaul and maintain these transmission and transformation wires, transmission line pulleys are often used. The existing pulleys mostly use single-row pulleys, which are hung on the transmission and transformation wires and pulled by ground workers. However, this single-row pulley There is a danger of falling off during use, and it is easy to break away from the power transmission line in case of violent shaking

Method used

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Embodiment Construction

[0010] The technical solutions of the present invention will be described in further detail below through specific implementation methods.

[0011] Such as figure 1 Shown, a kind of double-row block pulley, it comprises fixed pulley seat 1 and the movable pulley seat 2 that is fixed on described fixed pulley seat 1, and described fixed pulley seat 1 is parallel with described movable pulley seat 2 different planes, wherein, The fixed pulley seat 1 is provided with a fixed pulley 11, the top of the fixed pulley seat 1 is provided with a hanging ring 12, the movable pulley seat 2 is equipped with a movable pulley 21, and the baffles on both sides of the movable pulley seat 2 are respectively provided with Sliding groove 22 is arranged, and the axle of described movable pulley 2 is arranged in described sliding groove 22, and the two ends of described axle are provided with screw thread, and described movable pulley 21 is fixed with described movable pulley seat 2 by nut 23, and ...

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Abstract

The invention provides a double-row type pulley sheave, comprising a fixed sheave seat and a movable sheave seat fixed on the fixed sheave seat, wherein the irregular surfaces of the fixed sheave seat and the movable sheave seat are parallel; a fixed sheave is arranged in the fixed sheave seat; a hanging ring is arranged on the top of the fixed sheave seat; a movable sheave is installed in the movable sheave seat; slide grooves are arranged on baffles at the both sides of the movable sheave seat respectively; the sheave shaft of the movable sheave is arranged in the slide grooves; threads are arranged at the both ends of the sheave shaft; the movable sheave and the movable sheave seat are fixed via a nut; and the friction surface of the fixed sheave and the friction surface of the movable sheave are of concave arc shapes. The double-row type pulley sheave has the advantages of scientific design, reasonable structure and good in anti-falling-off effect, and is simple to use.

Description

technical field [0001] The invention relates to a device for a pulley, in particular to a double row pulley pulley. Background technique [0002] At present, in order to ensure the safe operation of high-voltage and ultra-high-voltage power transmission and transformation projects and their power transmission and transformation, power transmission and transformation towers must be used. The distance between these towers is usually 200 to 400 meters, and the height of the power transmission and transformation lines erected on the towers is Mostly between 40 and 80 meters. In order to overhaul and maintain these transmission and transformation wires, transmission line pulleys are often used. The existing pulleys mostly use single-row pulleys, which are hung on the transmission and transformation wires and pulled by ground workers. However, this single-row pulley There is a danger of falling off during use, and it is easy to break away from the power transmission line in case ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/02
Inventor 刘蓉
Owner STATE GRID CORP OF CHINA
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