Efficient and rapid electric permanent magnet brake

Abstract

The invention discloses an efficient and rapid electro-permanent magnetic brake comprises a rack; a rotor assembly, a stator assembly and a spring assembly are arranged in the rack, and a first output assembly and a second output assembly are arranged on the two sides of the rack correspondingly; the rotor assembly comprises rotor blocks, a rotor fixing plate and sliding parts; the number of the rotor blocks is two, the two rotor blocks are symmetrically arranged, the top ends and the bottom ends of the two rotor blocks are connected through the two rotor fixing plates respectively, the sliding parts are arranged on the rotor fixing plates, and the rotor fixing plates are in sliding connection with the rack through the sliding parts; the stator assembly is arranged between the two rotor blocks, and the upper end and the lower end of the stator assembly are fixedly connected with the rack; the spring assembly is located between the inner side face of the rack and the rotor assembly, the first output assembly is fixedly connected with one end of the rotor assembly, the second output assembly and the first output assembly are oppositely arranged, and the second output assembly is fixedly connected with one end of the rack. The brake is efficient and rapid.

Description

technical field [0001] The invention relates to the electromechanical field, in particular to a high-efficiency fast electric permanent magnet brake. Background technique [0002] As an automatic actuator for transmitting power and controlling motion in modern industry, electromagnetic brakes are widely used in mines, construction, lifting, etc. due to their compact structure, fast response, long life, high reliability, and easy remote control. , transportation, ship berthing and other fields. The electromagnetic brake realizes the opening and closing braking effect of the brake by turning on and off the excitation coil, which has its advantages and disadvantages and its specific application occasions. [0003] Existing electromagnetic brakes, such as electromagnetic powder brakes, are suitable for the drive systems of various machines. The inertia of magnetic powder is extremely small, the response speed is fast, and the control torque is large. However, magnetic powder wi...

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Problems solved by technology

[0003] Existing electromagnetic brakes, such as electromagnetic powder brakes, are suitable for the drive systems of various machines. The inertia of magnetic powder is extremely small, the response speed is fast, and the control torque is large. However, magnetic powder will cause parts to wear and all braking power will be converted to heat consumption. Low; Electromagnetic eddy current brakes are often used in machinery with vertical loads. They are durable, easy to maintain, and have a wide range of speed regulation. However, at low speeds, they have low efficiency and high temperature, so heat dissipation measures must be taken

Electromagnetic friction brake has simple structure and fast response, but its performance is greatly affected by friction material and working temperature

The above electromagnetic brakes have problems such as short life, easy damage, low braking efficiency, and delay for high-power and frequent starting equipment such as mine hoisting equipment and high-speed elevators, which may easily cause equipment vibration and retention, which greatly affects its transportation efficiency. , reducing security

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