Mechanical stepping device applicable for large sized bar marshalling bench

Abstract

The invention belongs to the field of mechanical equipment, and aims to provide a mechanical stepping device applicable for a large sized bar marshalling bench. According to the technical scheme, themechanical stepping device applicable for the large sized bar marshalling bench comprises a power unit and a stepping device, and the power unit comprises a motor and a speed reducer; the motor is connected to the speed reducer through a coupling, and the speed reducer is of a double output shaft structure; the stepping device comprises a counterweight assembly part, a parallel four-link mechanismassembly part and input shafts, and the input shafts penetrate the counterweight assembly part and the parallel four-link mechanism assembly part; and the input shafts include a counterweight transmission shaft and a parallel four-link mechanism transmission shaft, and the counterweight transmission shaft and the parallel four-link mechanism transmission shaft are connected through a coupling integrally. In the technical scheme, the stepping device used for the large sized bar marshalling bench is the mechanical stepping device, and the stepping rate of the mechanical stepping device is higher than the stepping rate of a hydraulic stepping device in the working process; the mechanical stepping device has the advantages of small synchronization error, low manufacturing accuracy, less maintenance workload and high reliability, so that the production efficiency can be improved effectively.

Description

technical field [0001] The invention belongs to the field of mechanical equipment, and in particular relates to a mechanical stepping device suitable for use on a marshalling platform for large-size bars. Background technique [0002] In China, Φ50~350mm round steel and square steel of corresponding specifications are called large-size bars. The marshalling stand is one of the important rolling auxiliary equipment on the hot-rolled large-size bar production line. It is usually located in the finishing mill and the sizing equipment. Between them, it plays the role of adjusting the rhythm of production and connecting the past and the future. Its reasonable structural design can not only improve the quality of the rolled piece and the rhythm of rolling, but also reduce the cost of production and operation. [0003] Although the marshalling stands currently used in the large-size bar production line are various or slightly different in structure, they are basically composed of ...

AI Technical Summary

Problems solved by technology

[0006] 1. The two sets of hydraulic mechanisms in the hydraulic stepping device do not act simultaneously but sequentially, so the stepping rhythm is slow and the production efficiency is low

[0007] 2. The structure is complex, the processing precision of the parts is high, and a hydraulic synchronous circuit is required, and the equipment investment cost is relatively high

[0008] 3. After the hydraulic stepping device is put into production, as the use time continues to increase, the synchronization error of the stepping action will become larger and larger, and the maintenance workload required on site will also increase.

[0009] 4. The variety of products has narrow changes, and it is difficult to adapt to the production of products with wide changes

[0010] Hydraulic stepping device, due to the existence of synchronous errors in both hydraulic and mechanical aspects, and the larger the product specification, the greater the synchronous error, so the applicable size range of its products is narrow, and it is generally used for the production effect of Φ50~130mm round steel Better, but a wider range of round bars is difficult to expand

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