Hydraulic supporting control mechanism of roller connecting shaft and relevant puncher and relevant pipe milling machine

Abstract

The invention provides a hydraulic supporting control mechanism of a roller connecting shaft and a relevant puncher and a relevant pipe milling machine. The hydraulic supporting control mechanism of the roller connecting shaft is used for supporting the roller connecting shaft dynamically and comprises a connecting shaft supporting base, a hydraulic supporting control system and a hydraulic cylinder installing base. The connecting shaft supporting base contacts with and supports the roller connecting shaft, the hydraulic cylinder installing base is installed on a foundation, a hydraulic cylinder of the hydraulic supporting control system is installed in the hydraulic cylinder installing base, and the hydraulic cylinder can drive the connecting shaft supporting base to move up and down or support the roller connecting shaft in a floating mode. Due to the fact that constant supporting force exists, a sinking range of the roller connecting shaft is limited, rotary diameter of the roller connecting shaft is reduced, simultaneously the stress of handles at two ends of the roller connecting shaft is improved, and the service life of the handles is prolonged.

Description

technical field [0001] The invention relates to a rolling mill, in particular to a hydraulically controlled support system for the roll joint shaft of a piercing machine or a pipe rolling mill and related piercing machines and pipe rolling mills. Background technique [0002] During the steel rolling process, the main function of the roll shaft is to transmit the speed and torque of the reducer to the roll, so that the roll rotates and bites into the pipe to achieve the purpose of rolling. figure 1 Shown is a structural schematic diagram of an existing power transmission system including a roll joint. Such as figure 1 As shown, the two ends of the roll connecting shaft 101 are respectively connected with the reducer handle 106 and the roll handle 107, the reducer handle 106 is connected with the reducer 102, the reducer 102 is connected with the motor 103; the roll handle 107 is connected with the roll 104, and the roll 104 Installed in the frame 105. During rolling, the ...

AI Technical Summary

Problems solved by technology

[0003] When the current piercing machine or rolling mill is rolling, the roll joint shaft is not supported. Due to the heavy roll joint shaft, the self-weight causes the roll joint shaft to sink, resulting in a large rotation diameter when the roll joint shaft rotates, which affects the reducer joint 107 and the roll joint. 107 stress and reduce its service life

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