Tubular Motor Brake Assembly

Abstract

The invention discloses a braking assembly of a tubular motor. The braking assembly comprises a group of mutually engaged G-type friction plates, a rear gear seat, a connecting rack, a driving rack and a connecting sleeve, wherein the friction plates are matched with an inner wall of the rear gear seat; the driving rack is connected with the motor; and the connecting rack extends out of the rear gear seat to achieve output. The braking assembly can rapidly unlock under rotation of the motor; dead locking can be performed effectively when an output shaft clockwise or anticlockwise rotates; the braking assembly is stable and reliable; and the motor is protected effectively. The braking assembly is good in control performance; rubber mats are arranged on the surfaces of the first friction plate and the second friction plate, and deceleration is performed and then the dead locking is performed after the inner wall of the rear gear seat is contacted, so that impact to a gear caused by too rapid braking is avoided; the gear can be protected; the service life of the tubular motor can be prolonged; and noise generated during braking can be reduced effectively.

Description

technical field [0001] The invention relates to fittings on tubular motors, in particular to a tubular motor braking assembly. Background technique [0002] Tubular motors are usually used on rolling doors and rolling windows as power to control the opening and closing of doors and curtains. It includes a stroke assembly, a motor, a brake assembly, a reduction mechanism, an output shaft and a control mechanism. The motor is connected with the deceleration mechanism to reduce the speed of the motor and increase the rotational torque of the output shaft. The stroke assembly is usually combined with a control mechanism to control the stopping range of the tubular motor. [0003] Since the door leaf and the curtain are installed on the output shaft of the tubular motor, there is a tendency to fall downward, and the door leaf may even be accidentally pulled by people. Therefore, the tubular motor needs to be equipped with a set of brake components to allow the rotational force...

AI Technical Summary

Problems solved by technology

[0006] There are two problems in the prior art: first, the coil spring structure limits the brake to one-way locking, and locks the downward pulling force of the rolling shutter door. When the rolling shutter door is lifted upward, the coil spring is tightened, and the coil spring and the friction parts are separated. , the brake is released, and the motor cannot be protected

[0007] Second, due to the use of the coil spring structure, the coil spring itself is thin and narrow, and the friction rubber pad cannot be attached to the outer wall. When braking, the coil spring directly rubs against the friction parts on the brake structure.

prone to jitter and noise

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