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Normally closed type hydraulic falling protector

A normally closed, anti-falling device technology, applied in the field of anti-falling devices, can solve the problems that the cage cannot be reliably locked, and achieve the effects of compact structure, rapid action, and improved versatility

Inactive Publication Date: 2014-09-17
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the routine test is carried out in accordance with the requirements of the safety regulations during the normal working process, it cannot guarantee that the falling cage will be fully and reliably braked when the wire rope breaks.

Method used

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  • Normally closed type hydraulic falling protector

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Effect test

Embodiment Construction

[0019] Such as figure 1 As shown, a normally closed hydraulic fall arrester includes a hydraulic cylinder actuating mechanism connected between the lifting cage 14 and the lifting wire rope 12, and is respectively fixed on the frames on both sides of the lifting cage 14 and runs along the brake wire rope 7. Two normally closed hydraulic actuators. The structure of the hydraulic cylinder actuating mechanism is that it includes a vertically arranged actuating hydraulic cylinder 3, a piston pull rod 2 is arranged in the rod chamber of the actuating hydraulic cylinder 3, and a return spring 1 is provided, and the rodless chamber of the actuating hydraulic cylinder 3 And the rod cavity is filled with hydraulic oil, the end of the piston rod 2 is connected to the hoisting wire rope 12 through the wedge-shaped rope ring connection mechanism, and the cylinder body of the actuating hydraulic cylinder 3 is connected to the hoisting cage 14; the two normally closed hydraulic actuators ha...

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Abstract

The invention discloses a normally closed type hydraulic falling protector. The normally closed type hydraulic falling protector comprises a hydraulic cylinder starting mechanism which is connected between a hoisting cage and a hoisting rope, and two normally closed type hydraulic actuating mechanisms which are respectively fixed on a frame on the two sides of the hoisting cage and operate along brake steel wire ropes; and through the hydraulic cylinder starting mechanism and the normally closed type hydraulic actuating mechanisms, the cage unresisted operation during the hoisting process is ensured, and the falling cage is braked when the steel wire ropes are broken. The protector adopts full-hydraulic control, does not need additional power sources, has a compact structure, is quick to operate, and has high safety and reliability, and meets different requirements of different loads of a hoisting system on a brake clearance.

Description

technical field [0001] The invention relates to vertical shaft GLS, GLSY series single-rope hoisting cages, in particular to a fall arrester for protecting steel wire ropes of such cages from broken ropes. It is used in conjunction with the brake wire rope as a safety braking device for the protection of the hoisting wire rope from breaking. Background technique [0002] At present, the mine single-rope winding lifting cage is the only equipment for the staff to go up and down the mine. For safety, a fall arrester must be installed to prevent the cage from falling into the bottom of the well when the rope is short, commonly known as squat tank. Currently used fall arresters include wooden tank road mechanical structure and steel wire rope tank road mechanical structure fall arrester. Different manufacturers have different designs and models of fall arresters. Commonly used domestic fall arresters include BF series, BS series and DMFI series of fall arresters. These series o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/24
Inventor 徐瑞银李东民郭凡灿袁建军程百林
Owner SHANDONG UNIV OF SCI & TECH
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