Helical Gear Electromagnetic Brake Motor Working Principle

Brake when power is off, safe and worry-free

The logistics and production machinery fields often face pain points such as positioning inaccuracy caused by inertial sliding, safety risks caused by sudden power outages, and loss of motor life due to frequent starts and stops. Your trouble is how to match efficient braking solutions for drive units such as Electric Tricycle motors to ensure zero errors when parking on slopes and emergency stops. In response to this, the YEJ series helical gear electromagnetic brake motor integrates a power-off brake mechanism, and is equipped with an intelligent Electric Vehicle Controller to achieve flexible electronic brakes (E-ABS) and energy feedback. In actual applications, when the Electric Tricycle Controller cuts off the power, the spring force pushes the armature to press the brake disc, and the motor shaft is locked within 0.1 seconds, eliminating the risk of sliding down the slope and reducing the wear of the mechanical brake pad by 60%.

Core principle: The motor integrates the worm gear reduction mechanism with the electromagnetic brake module. When powered on, the electromagnetic coil generates suction to compress the spring, release the brake disc, and the motor runs freely; when the power is off, the magnetic field disappears, and the spring resets to make the friction plate clamp the brake disc at high speed to achieve physical shaft locking. Its braking torque is independent of the speed, and it can still park accurately even under low-speed and heavy-load conditions (such as electric tricycles climbing slopes)17.

Product Features

Dual-mode safety braking: automatic brake when power is off + controller E-ABS electronic brake double insurance, braking distance shortened by 40%410;

Large torque start-stop: 7.5KW model starting torque reaches 200% of the rated value, suitable for conveying machinery with frequent start and stop1;

Wide voltage compatibility: The brake is adapted to 24V-72V Electric tricycle controller through a rectifier bridge, without fear of voltage fluctuations210.

Operation tips

The manual release device can release the brake during debugging, which is convenient for installation and alignment1;

The controller needs to match the flexible electronic brake (parameter setting 33±1A current limit) to avoid braking overshoot10.

Advice from a ten-year maintenance master: When choosing a brake motor, you need to look at the "spring life". The YEJ series brake friction pads can still run at full load after 100,000 start-stop tests, and the braking force does not decay under 75°C high temperature conditions - this is the confidence to "brake" when transporting heavy-loaded tricycles