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                Industry News

                Brake Motor Overview

                View:2505/16/2022  

                Classification:

                Brake motor is divided into: DC brake motor, AC brake motor. The DC brake motor needs to be installed with a rectifier. The rectified voltage is 99V, 170V or 90-108V. Because the DC brake motor needs to go through the rectified voltage, the fastest braking time is about 0.6 seconds. The AC brake motor does not need rectification because of the direct 380V voltage, and the braking time can be completed within 0.2 seconds. The DC brake motor has a simple structure, low cost, and heats up quickly and easily burns the motor. The AC brake motor has a complex structure, high cost, obvious braking effect, and durability. It is an ideal power for automatic control. However, neither the DC brake motor nor the brake part (ie the brake) of the AC brake motor can be connected to the variable frequency voltage, and additional wiring is required for synchronous control!

                Scope of application:

                Brake motors have high-precision positioning requirements. As a brake motor, it should have the following characteristics: rapid braking, accurate positioning, safety and reliability, interchangeable use of brake systems, simple structure, and easy replacement and maintenance. Many factories need brake motors to control the inertia of the motors and achieve the required accurate positioning to realize the automatic work of the machinery.

                Such as: lifting machinery, ceramic printing machinery, coating machinery, leather machinery, etc. Brake motors are widely used and can be seen in various fields of machinery and equipment.

                working principle:

                There is an electromagnetic holding brake at the tail of the motor. When the motor is powered on, it is also energized and closed. At this time, it does not brake the motor. When the motor is powered off, it is also powered off. The holding brake brakes the motor under the action of the spring.

                The two lines are to connect the two AC input terminals of a rectifier full bridge to any two input terminals of the motor and input 380V AC synchronously with the motor, and the two DC output terminals are connected to the brake excitation coil. The working principle is that when the motor is energized, the coil receives direct current to generate suction to separate the two friction surfaces of the tail, and the motor rotates freely. On the contrary, the motor is braked by the spring restoring force. Depending on the motor power, the coil resistance is between tens to hundreds of ohms.

                Applicable to: all kinds of machine tools, printing machinery, forging presses, transportation machinery, packaging machinery, food machinery, construction machinery, woodworking machinery and other machinery that require quick stop, accurate positioning, reciprocating operation, and sliding prevention as the main shaft drive and auxiliary. transmission.



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