Double-pulley lifting device with balancer and oxygen lance device with balancer

Abstract

The invention belongs to the field of lifting equipment, and relates to a double-pulley lifting device with a balancer. The double-pulley lifting device comprises a winch, a balancing pole, a liftingtrolley and two traction ropes, wherein the winch is fixedly arranged on a rigid support, and the midpoint of the balancing pole is rotatably arranged on the rigid support; the lifting trolley is provided with double pulleys, the two pulleys are arranged on the two corresponding sides of the lifting trolley respectively, and the two traction ropes are connected with the two ends of the balancing pole after being wound across the two pulleys. The invention further relates to a double-pulley lifting oxygen lance device with a balancer. The double-pulley lifting oxygen lance device with the balancer comprises a winch platform and an oxygen lance, and further comprises the double-pulley lifting device with the balancer. The balancing pole can automatically and sensitively reduce the tension difference value between the two traction ropes in the double-pulley lifting device in the working process, traction rope uneven abrasion caused by the excessive tension difference value of the tractionropes is prevented, the service life of equipment is prolonged, maintenance frequency is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of lifting equipment, and relates to a double pulley lifting device provided with a balancer and an oxygen lance device provided with the same. Background technique [0002] Oxygen lance device is an indispensable key equipment in converter steelmaking. The operation reliability of its lifting transmission system is directly related to the stability of converter steelmaking production operation as well as the quality and efficiency of steelmaking. At present, the lifting transmission system of the oxygen lance device mostly adopts the form of double-connected drums, double steel wire ropes, and double-moving pulleys. Due to equipment installation errors, incomplete elongation of steel wire ropes, wear and tear of mechanisms caused by long-term use, frequent lifting movements during work, and harsh working environments, the tension of the traction ropes on both sides of the lifting transmission system of the oxygen lan...

AI Technical Summary

Problems solved by technology

Due to equipment installation errors, incomplete elongation of steel wire ropes, wear and tear of mechanisms caused by long-term use, frequent lifting movements during work, and harsh working environments, the tension of the traction ropes on both sides of the lifting transmission system of the oxygen lance device will be insufficient during use. Uniformity will affect the service life of the traction rope, and in serious cases will cause safety accidents such as falling guns. Therefore, it is very important to minimize the tension difference between the two traction ropes and control them within a safe range.

[0003] At present, in the lifting mechanism of the oxygen lance device, either there is no mechanism to automatically balance the tension of the traction rope, and the length of the traction rope is adjusted irregularly manually, or the structure of the tension balance mechanism of the traction rope is complicated, and it cannot be adjusted sensitively due to low mechanical efficiency. Variation of the tension of the traction rope in the process of raising and lowering the oxygen lance

All of these have resulted in production safety being affected and production interrupted due to the excessive tension difference between the two traction ropes during the production process, or due to difficult maintenance, frequent problems have affected the normal production rhythm

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