Track crane cart walking stroke range control method

Abstract

The invention relates to a track crane cart walking stroke range control method. The track crane cart walking stroke range control method comprises the following steps that (1) a cart motor encoder is arranged on any cart walking motor of a crane, synchronously runs with a motor shaft and is used for measuring turning direction of the cart motor and the number of running turns of the cart motor; (2) a cart stroke setting switch is installed on a cab operation table; (3) a cart position detection switch group is a device composed of a group of metal induction switches, is arranged at the position, close to a cart track, of the lower portion of a lower cross beam of the crane and is used for detecting information of a combined position information board buried in the ground near the cart track; (4) the combined position information boards are pre-buried in the ground near the cart track, a multiple sets of the combined position information boards are buried in the length direction of the cart track; and (5) physical position labels are physical position digital character marks marked on the ground near the length direction of the cart track.

Description

technical field [0001] The invention relates to a control method, in particular to a method for controlling the traveling stroke range of a rail crane cart, and belongs to the technical field of electrical equipment control. Background technique [0002] Port quay cranes, ship unloaders and other equipment often need to move the crane along the cart track during work. The travel range of the cart is generally only limited by the length of the power supply cable or the location of the adjacent crane equipment. However, in actual production, due to the needs of equipment maintenance and other material hoisting, sometimes there are operating equipment and personnel on the rails of the crane cart or in the passage of the crane cart, which will cause obstacles to the crane walking. Restrictions may cause the crane to hit other operating equipment, causing equipment accidents and even personal injury accidents. In the past few years, the company has experienced many equipment dama...

AI Technical Summary

Problems solved by technology

However, in actual production, due to the needs of equipment maintenance and other material hoisting, sometimes there are operating equipment and personnel on the rails of the crane cart or in the passage of the crane cart, which will cause obstacles to the crane walking. Restrictions may cause the crane to hit other operating equipment, causing equipment accidents or even personal injury accidents. In the past few years, the company has experienced many equipment damage accidents caused by ineffective restrictions on the scope of crane operations, resulting in large economic losses.

At present, none of the port rail cranes has a corresponding travel range control technology that can set the travel range of the crane. It can only rely on artificially notifying the crane operator or setting a temporary mechanical stop on the crane cart track to limit the travel range of the crane cart. There are major defects in both methods: 1. The driver's attention is mainly concentrated on the crane lifting operation during operation, and it is inevitable that he will neglect the attention to the position limit of the cart, and rely on artificial attention to the walking range of the cart to control the cart not to cross the restricted position. The reliability is low; 2. The provision of temporary mechanical stops on the track of the crane cart belongs to the passive restriction of the travel of the cart. Once the crane cart hits the mechanical stop, it will cause a large impact on the machine and damage the equipment.

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