Safety device utilizing energy consumption brake to realize overspeed protection of rotary table

Abstract

The invention discloses a safety device utilizing energy consumption brake to realize overspeed protection of a rotary table. The safety device utilizing energy consumption brake to realize overspeed protection of a rotary table includes a control system, wherein the control system includes a frequency-voltage conversion circuit, a PLC controller, a brake interlock circuit, a driver, a motor and a position sensor; an output end of the driver is electrically connected with an input end of the brake interlock circuit; an output end of the brake interlock circuit is electrically connected with an input end of the motor; and an output end of the motor is electrically connected with an input end of the position sensor. The safety device utilizing energy consumption brake to realize overspeed protection of a rotary table utilizes the PLC controller to realize overspeed determination, and starts energy consumption brake interlock motion, wherein the energy consumption brake interlock mechanism utilizes a direct current or alternating current motor reversible principle to convert the energy of motion parts into thermal energy through power generation capability of the motor so as to enable a motion shaft to automatically stop to protect the rotary table and the load of the rotary table. The safety device utilizing energy consumption brake to realize overspeed protection of a rotary table is quick and reliable in movement, and can obviously reduce the braking distance, wherein the braking distance can be quantified.

Description

technical field [0001] The invention relates to the technical field of numerical control inertial navigation testing equipment, in particular to a safety device for realizing overspeed protection of a turntable by utilizing energy-consumption braking. Background technique [0002] Electric motion control systems are widely used, such as turntables, elevators, robots, etc., and their operation safety is getting more and more attention. A general electric motion control system generally includes: a controller, a driver, a motor, a mechanical structure, and a position detection device. Through the closed-loop control principle, various types of motion are required, such as point-to-point positioning motion, rate motion, and swing motion. Since the characteristics of the closed-loop motion control system are affected by uncertain factors such as load characteristics, control algorithms, and component failures, it is inevitable that equipment will be out of control. security is ...

AI Technical Summary

Problems solved by technology

Electromagnetic brakes have obvious limitations, such as wear, large movement impact, complex structure, increased weight, etc.

On the one hand, the braking effect of the electromagnetic brake will change over time due to mechanical wear and tear. On the other hand, it is often difficult or even impossible to install an electromagnetic clutch device on some large and compact structural frames.

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