Vertical positioning and fixing method for cargo carrying table

Abstract

According to the vertical positioning and fixing method for the cargo carrying table, the linkage mechanism is arranged between the cargo carrying table and the elevator frame for mutual butt joint and limiting, and a mechanism dead point in the horizontal direction is formed on a straight line through pushing of the connecting rod so as to lock the vertical height position; therefore, the design purposes that one power source locks the overall vertical movement of the cargo carrying table, and heavy loads can be accurately positioned and fixed are achieved. The vertical positioning and fixing method for the cargo carrying table comprises the steps that a positioning groove is formed in an elevator frame or a wall, and a gear motor and a guide rail are installed on the cargo carrying table; an output shaft of the gear motor is connected to one ends of at least one group of connecting rods through rotating blocks, and the other ends of the connecting rods are connected with near ends of positioning bumps; a sliding block is installed at the bottom of the positioning protruding block and movably connected to the guide rail. When the cargo carrying table moves to a designated station in the vertical direction, the rotating block pushes out the connecting rod in the side direction, the connecting rod pushes the positioning protruding block to enter the positioning groove in the direction of the guide rail, and the cargo carrying table is locked and positioned in the vertical direction.

Description

technical field [0001] The invention relates to a positioning and fixing method applied to the vertical layer-changing transportation of the cargo platform of a hoist, and belongs to the technical field of logistics sorting. Background technique [0002] With the rapid development of the domestic e-commerce industry, the application of automated sorting equipment is also increasing. In the logistics transfer yard, hoists are usually used to lift or lower pallets, loading platforms and other devices from one working height to another. , so as to assist the vertical warehouse to complete the storage and delivery of materials, as well as the layer change operation and maintenance work of the trolley. [0003] For example, when transporting heavy-duty goods on a cross-floor elevator, the following two problems of inaccurate positioning usually occur: one is that the lifting chain is too long and it is easy to cause obvious stretching, and the chain is too long to directly affect...

AI Technical Summary

Problems solved by technology

[0003] For example, when transporting heavy-duty goods on a cross-floor elevator, the following two problems of inaccurate positioning usually occur: one is that the lifting chain is too long and it is easy to cause obvious stretching, and the chain is too long to directly affect the load. The positioning accuracy of the cargo platform in the vertical direction will further increase after a long period of operation, which will affect the normal cargo reloading; When the load is unloaded, the loading platform after unloading will obviously move upward for a certain height due to the stretching and restoring force of the chain. If the goods are transported to the loading platform again, it will be difficult to load the goods due to the vertical height difference.

[0004] The solution to the above-mentioned existing problems is usually to add electrical detection devices, such as using barcodes for calibration and positioning to control the rerunning of the loading platform to the initial or specified height, but the cost of such components is high and the adjustment process is complicated

In addition, the induction switch is used to control the brake of the loading platform. Due to the frequent occurrence of operation control signals, the electrical components such as the drive motor are damaged, and the relative positioning accuracy is not high.

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