Movable lifting chain limit device

Abstract

The invention discloses a movable type lifting chain limiting device, which belongs to the technical field of lifting machinery. The movable type lifting chain limiting device is formed by a movable type limiting ring and a tail chain ring fastening piece, wherein the movable type limiting ring is provided with a chain ring grove which is used for a lifting chain to pass through, a stop groove which is used for limiting the passing through of the lifting chain and an opening groove which is used for installing a tail chain ring of the lifting chain, the chain ring groove and the stop groove are mutually communicated, the opening groove is positioned at the bottom part of the movable type limiting ring, two ends of an opening end of the opening groove are both provided with through holes, the tail chain ring fastening piece is arranged by penetrating through the through holes, and the movable type limiting ring is provided with a guiding surface and a stop step which are arranged at the periphery of the stop groove. After the technical scheme is adopted, the movable type lifting chain limiting device disclosed by the invention can be conveniently, adjustably and movably arranged on corresponding position of a working section of the lifting chain according to actual needs, and thus the complete machine failure can be prevented in advance.

Description

【Technical field】 [0001] The invention belongs to the technical field of hoisting machinery, and in particular relates to a movable hoisting chain limiting device for light and small manual hoists such as chain hoists and lever hoists. 【Background technique】 [0002] Manual hoists (such as chain hoists and lever hoists) must be equipped with a limit device for the tail chain ring in the standard requirements. The purpose is to prevent the lifting chain at the load end from falling rapidly or the brake device from failing when the whole machine is working. In practical applications, the limit device is usually fixed, or the tail chain ring is fixed on the body of the hoist. Only when the limit is reached, the limit device can play a role. Because the limit device only For the limit of the tail chain ring, the limit device cannot be movably installed on the corresponding position of the working section of the lifting chain according to the actual needs according to the constan...

AI Technical Summary

Problems solved by technology

[0002] Manual hoists (such as chain hoists and lever hoists) must be equipped with a limit device for the tail chain ring in the standard requirements. The purpose is to prevent the lifting chain at the load end from falling rapidly or the brake device from failing when the whole machine is working. In practical applications, the limit device is usually fixed, or the tail chain ring is fixed on the body of the hoist. Only when the limit is reached, the limit device can play a role. Because the limit device only For the limit of the tail chain ring, the limit device cannot be movably installed on the corresponding position of the working section of the lifting chain according to the actual needs according to the constantly changing height position of the lifting weight, that is, the limit device cannot freely adjust its limit. The installation position required by the position, so that it can not quickly respond to the actual effect of preventing the failure of the whole machine

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