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Buffering device for balance lever of nuclear plant crane lifting mechanism

A technology of balancing lever and lifting mechanism, applied in the field of buffer devices

Active Publication Date: 2011-06-15
TAIYUAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When one wire rope fails, it will not cause impact on the other wire rope

Method used

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  • Buffering device for balance lever of nuclear plant crane lifting mechanism
  • Buffering device for balance lever of nuclear plant crane lifting mechanism
  • Buffering device for balance lever of nuclear plant crane lifting mechanism

Examples

Experimental program
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Effect test

Embodiment Construction

[0010] Such as figure 2 As shown, a buffer device for the balance lever of the hoisting mechanism of a nuclear power plant crane is composed of a balance lever (1), a support (2), a left steel wire rope (6), and a right steel wire rope (4). The middle of the balance lever (1) Installed on the support (2), the left wire rope (6) and the right wire rope (4) are symmetrically installed on both sides of the balance lever (1) through the collar (3), and the two ends of the balance lever (1) They are respectively connected with the pistons of the left oil cylinder (10) and the right oil cylinder (8), and the left oil cylinder (10) and the right oil cylinder (8) are connected to each other with the hydraulic system (7) through the oil pipe (9).

[0011] Since the left oil cylinder (10) and the right oil cylinder (8) are directly connected with the balance lever (1), when the right wire rope (4) fails, the right oil cylinder (8) immediately rises slowly, and the left oil cylinder (10...

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PUM

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Abstract

The invention discloses a buffer unit of a balance lever of a hoisting mechanism of a nuclear power plant hoister, relating to a hoister used in a nuclear power plant. The hoister comprises the balance lever, a support connected with the middle of the balance lever, and left and right steel wire ropes which are symmetrically arranged at two sides of the balance lever by a lantern ring, and is characterized in that: two ends of the balance lever are respectively connected with piston rods of a left oil cylinder and a right oil cylinder; and the left oil cylinder and the right oil cylinder are connected with each other by oil pipes and a hydraulic system. Since the left oil cylinder and the right oil cylinder are directly connected with the balance lever, when the right steel wire rope doesnot work, the right oil cylinder immediately rises slowly and the left oil cylinder immediately goes down slowly so as to play a role in buffering; meanwhile, the balance lever slowly inclines and does not impact the left steel wire rope.

Description

technical field [0001] The invention relates to a crane in a nuclear power plant, in particular to a buffer device for a balance lever when a steel wire rope of a hoisting mechanism of the crane fails. Background technique [0002] The safety requirements of cranes used in nuclear power plants are very high, especially the lifting mechanism. When any part of the lifting mechanism fails, the load must be kept balanced. Therefore, the balance lever device of the nuclear power plant crane needs to be equipped with a buffer. Such as figure 1 As shown, the balance lever device of the prior art has a structure as follows: the middle of the balance lever 1 is installed on the balance lever support 2, and the two ends of the balance lever 1 are respectively connected to the left steel wire rope 4 and the right steel wire rope 6 through a collar or a wedge sleeve 3. Connected, a buffer 5 is provided below the balance lever 1. When the left wire rope 4 fails, the balance lever 1 wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C19/02
CPCY02E30/30
Inventor 顾翠云武建平高秀芬
Owner TAIYUAN HEAVY IND