Driving mechanism of screw press

Abstract

The invention relates to a driving mechanism of a screw press, which comprises a flywheel which drives a sliding block to move up and down, a motor and energy storage wheels which are meshed mutually, wherein one energy storage wheel is driven by the motor; the energy storage wheels are respectively connected with pinions by a clutch; and the pinions are respectively connected with the flywheel. In the invention, a pair of pinions are adopted to drive the flywheel, the energy storage wheel is added below each pinion, and the energy storage wheels are mutually meshed by the teeth on the circumference, wherein one of the energy storage wheels is connected with the motor, therefore, the rotation directions of the two energy storage wheels are different, so are the rotation directions of the pinions. The clutch is arranged between the pinions and the energy storage wheels; by the control on the connection and the disconnection between the clutch and the energy storage wheels, different pinions can rotate in different rotation directions, and finally, the sliding block is raised upwards or pressed downwards. When the sliding block is pressed downwards or raised upwards, the motor keepscontinuous operation in the same rotation direction, and delivers energy to the energy storage wheels no matter in whichever statuses so as to lead all the energy storage wheels to supply energy for the flywheel, and the clutch bears vast torque for driving the flywheel, thus expelling the defects born by the motor.

Description

technical field [0001] The invention belongs to forging machinery, in particular to a driving mechanism of a screw press. Background technique [0002] In the traditional electric screw press, the motor directly drives the flywheel through the gear mechanism. Every time the slider reciprocates, the motor must rotate forward and reverse once, and its speed must be from zero - rated speed - zero - rated speed - zero . The motor starts repeatedly, the starting current is large, the required power is large, and the impact on the power grid is large. Since the motor has to rotate forward and reverse every time, a flywheel energy storage mechanism cannot be installed, which requires a large motor power. For example, a 5000MN screw press needs a motor drive with a total power of 660KW. Therefore, this increases the power loss and causes great difficulties in the development of large-scale screw presses. Contents of the invention [0003] The technical problem to be solved by t...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a driving mechanism for a screw press, which can avoid the problems of high motor power, large starting current, and large power loss caused by the motor having to be rotated forward and reverse once every stroke of the slider.

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