Rotary linear motor driving type remote control pressing plate

Abstract

The invention relates to a rotary linear motor driving type remote control pressing plate, which comprises a pressing plate assembly, a box-shaped shell, a driving assembly and a state detection device, wherein the pressing plate handle of the pressing plate assembly can be pulled out and rotated by a set angle to return; the driving assembly and the state detection device are arranged in the box-shaped shell; a limiting column and a detection part are arranged on a rod body at the front end, extending into the box-shaped shell, of the pressing plate handle; the driving assembly comprises a guide rail sleeve and a rotary linear motor; a guide rail and a detection hole are arranged on the side wall of the guide rail sleeve; a front end rod body of the pressing plate handle is arranged in the guide rail sleeve in a penetrating mode; the limiting column is embedded into the guide rail to guide the pressing plate handle to act; the rotary linear motor is in transmission connection with therod body at the front end of the pressing plate handle so as to drive the pressing plate handle to conduct linear action and rotating action; the position of the detection hole is matched with the detection part; and the state detection device is arranged beside the guide rail sleeve so that the state detection device can detect the rotating and throwing-in and throwing-out states of the pressingplate handle through the detection hole. The remote control pressing plate is high in automation degree, easy and convenient to operate, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to a rotary linear motor-driven remote control pressing plate. Background technique [0002] At present, in the power protection system, the pressure plates on the screen cabinets of most substations in China are manually operated, requiring operators to switch on or off the pressure plates on site. , resulting in electrical safety accidents. Some manufacturers propose a virtual pressure plate in the power protection system, which can realize automatic switch-on and withdrawal through microcomputer protection, but because the virtual pressure plate cannot provide a mechanical disconnection point, the safety is insufficient. [0003] Patent CN200810140099 provides an electric throwing and withdrawing device for protecting the pressure plate, which uses a motor and a cam mechanism to drive the pressure plate handle to move linearly, and uses friction to drive the pressure ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the power protection system, the pressure plates on the screen cabinets of most substations in China are manually operated, requiring operators to switch on or off the pressure plates on site. , resulting in electrical safety accidents

Some manufacturers propose a virtual pressure plate in the power protection system, which can realize automatic switch-on and withdrawal through microcomputer protection, but because the virtual pressure plate cannot provide a mechanical disconnection point, the safety is insufficient

[0003] Patent CN200810140099 provides an electric throwing and withdrawing device for protecting the pressure plate, which uses a motor and a cam mechanism to drive the pressure plate handle to move linearly, and uses friction to drive the pressure plate handle to rotate, which solves the automatic throwing and withdrawing function of the pressure plate to a certain extent. The rotation of the handle is unreliable, the consistency is difficult to guarantee, the operation is not stable enough, once the action fails, there is no emergency unlocking function, etc.

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