Production technology for elevator balance chain

Abstract

The invention relates to a production technology for an elevator balance chain. The production technology comprises the following steps of: S1: pointing; S2: drawing wires: carrying out drawing processing on a steel material by an inverted wire drawing machine, in a wire drawing process, adding wire drawing powders to lubricate the steel material, recycling the wire drawing powders, and supplementing taken-away loss in fixed time so as to prevent from generating waste wire drawing powders; S3: knitting: enabling the steel material to be formed into a spiral shape by a chain automatic knittingmachine, shearing the spiral steel material to enable the spiral steel material to be formed into an annular shape, clamping two ends of the annular steel material, enabling one end to rotate for 45 degrees, twisting a chain link into a three-dimensional annular shape to finish the shaping of one chain link, feeding the spiral material to enable the spiral material to penetrate through the shapedchain link, and circulating to form the chain; S4: carrying out butt welding; S5: correcting; and S6: carrying out shot blasting: utilizing friction between leather and the chain to carry out lubricating and polishing processing on the balance chain. The production technology has the following advantages that the bearing load of the elevator balance chain is improved, the elevator balance chain isprevented from twisting and deforming, and a surface degree of finish and surface smoothness can be improved.

Description

Technical field: [0001] The invention relates to the field of elevator balance chains, in particular to a production process of elevator balance chains. Background technique: [0002] Elevator balance chain is a component that balances the operation of the elevator. During the operation of the elevator, the length of the wire ropes on the car side and the counterweight side is constantly changing, which causes the weight of the wire ropes on both sides of the traction sheave to change. This change has an impact on the running performance of the elevator when the lifting height of the elevator is not large. It is not big, but when the lift exceeds a certain height, it will seriously affect the stability of the elevator operation and endanger the safety of passengers. For this reason, when the hoisting height of the elevator exceeds a certain height, an elevator balance compensation chain must be set to balance the weight change caused by the height change. [0003] The exis...

AI Technical Summary

Problems solved by technology

[0003] The existing elevator balance chain has the following defects in the production process: 1. The steel material is wound on the unit chain ring in a ring structure, and then bent to form a ring structure, and the elevator balance chain is repeatedly formed. The elevator produced by this process The bearing load of the balance chain is low, and it is easy to be twisted; 2. The chain is projected to the product through the steel ball in the shot blasting machine during polishing, and the shot blasting effect is achieved through impact and friction. However, the balance chain is suspended and then projected through the steel ball. It is easy to shake, the shot blasting effect is poor, and the uniformity is low, so the smoothness and smoothness of the elevator balance chain cannot be guaranteed. When the steel ball hits the elevator balance chain, the internal stress of the elevator balance chain will be concentrated, thus affecting the load carrying capacity of the elevator balance chain

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