Idle load controllable initiating and stepless speed regulating device used for overload mechanical apparatus

Abstract

The invention discloses an empty-load controllable starting and stepless speed regulation device used for heavy-load mechanical equipment, which can effectively control the stable starting and stable stopping of the heavy-load mechanical equipment. The device comprises an empty-load starting system, a reducing system, a hydro-viscous speed regulation clutch and a brake; wherein, the empty-load starting system consists of a main motor, an auxiliary motor and a normal clutch which is connected with the auxiliary motor; the reducing system consists of a primary gear reducing mechanism and a primary planetary reducing mechanism; the hydro-viscous speed regulation clutch is arranged on the output shaft of the reducing system; the brake is arranged between the coupler of the main motor and the reducing system; the device can greatly reduce the starting current, prolongs the service life of key parts such as reducer, and the like, greatly shortens the impact time of the motor starting current at the same time, and reduces the effects on the motor and the power network; the hydro-viscous speed regulation clutch is arranged outside the reducing system, thus greatly reducing the difficult and expense for equipment maintenance.

Description

technical field [0001] The invention relates to a mechanical control device, in particular to a no-load controllable starting and stepless speed regulation device for heavy-duty mechanical equipment. Background technique [0002] The concept of soft start originated from Marshall Space Center in the United States. It is a brand-new motor starting method integrated with various technologies such as power electronics technology, control technology and processor technology. In the process of soft start, for the power grid, it is hoped that the impact of the starting current of the motor on the power grid is as small as possible, so as to reduce the impact on other electrical equipment. For the motor, try to reduce the starting current of the motor and shorten the impact time of the starting current. For the transmission system and mechanical loads, the soft start technology should ensure that the starting impact energy on the mechanical equipment is minimized during the start ...

AI Technical Summary

Problems solved by technology

However, the motor cannot be started without load, the control is complicated, and the requirements for ambient temperature and cleanliness are high

In addition, high-power inverters and their spare parts need to rely on imports, which are expensive and costly to maintain

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