Vertical type rolling mill speed reducer

Abstract

The invention relates to a vertical type rolling mill speed reducer. The vertical type rolling mill speed reducer comprises a shell, a first partition board and a second partition board are verticallymounted in the shell, an upper conical gear and a lower conical gear are mounted on the lower end of a lifting rotating shaft, the lifting rotating shaft is rotatably mounted in a lifting frame, thelifting frame is slidingly mounted in the shell in the upper and lower end direction of the shell, a third transmission shaft is rotatably mounted on the second partition board and the other side ofthe shell, one end of the third transmission shaft penetrates through the second partition board and is fixedly provided with a variable speed conical gear, the inner side and the outer side of the variable speed conical gear are provided with an inner gear tooth and an outer gear tooth correspondingly, one end of the variable speed conical gear is located between the upper conical gear and the lower conical gear, the lifting frame does lifting in the shell, the variable speed conical gear is in engaged connection with the upper conical gear through the inner gear tooth or is in engaged connection with the lower conical gear through the outer gear tooth, the rotating speed of the variable speed gear can be changed, the changing of the rotating speed of an output shaft of the speed reducercan be achieved, operation is easy and practical, and the normal work needs of a rolling mill can be met.

Description

technical field [0001] The invention belongs to the technical field of reducers, and in particular relates to a reducer for a vertical rolling mill. Background technique [0002] The reducer is mainly used as a reduction transmission device between the prime mover and the working machine, and plays the role of matching speed and transmitting torque between the prime mover and the working machine or the actuator. The gear reducers used on the existing rolling mills are all fixed speed reducers. Once the speed ratio is selected, the motor is selected, and the final output speed is fixed. However, in actual use, the rolling mill needs to increase the processing speed to process different types of products when processing products. At present, only a single type of product can be processed, and it cannot be processed comprehensively, and the work efficiency is low. Changing the rotational speed of the drive motor to change the output speed ratio of the reducer will reduce the o...

AI Technical Summary

Problems solved by technology

However, in actual use, the rolling mill needs to increase the processing speed to process different types of products when processing products. At present, only a single type of product can be processed, and it cannot be processed c

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