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1.6 Electromagnetic brake
The brake used in this vehicle is a spring loaded electromagnetic brake. This brake is a single
disc brake with dual friction surfaces. By using pressure springs, a strongbrakingtorquecanbe
generated in a power off state, and electromagnetic effects can release thebrake.
1.Brake mounting screws
2.Stator assembly
3.Friction brake pads
4.Shaft sleeve
5.Friction disc
6.Dust cover
1 Figure 2-3 Electromagnetic brake parts diagram
1.6.1 Working principle
The motor shaft (9) is connected to the shaft sleeve (4) through a flat key; The shaft sleeve (4) is
connected to the friction brake pad (3) through splines. When the stator (11) loses power, the force
generated by the pressure spring (10) acts on the armature (8), tightly clamping the friction brake pad
(3) driven by the motor shaft to rotate between the armature (8) and the friction disc (5), thereby
generating a braking torque. At this point, an air gap "Z" will be generated between the armature and
the stator. When it is necessary to release the brake, the stator is connected to direct current, and the
generated magnetic field attracts the armature (8) to move towards the stator. When the armature
moves, it compresses the pressure spring (10). At this time, the friction brake pad (3) is released and
the brake is released.
Z
1
7
5
3
8
9
4
10
11
12
1. Brake mounting screws
3. Friction brake pads
4. Shaft sleeve
5. Friction disc
6. Dust cover
7. Hollow screw
8. Armature
9. Motor shaft
10.Pressure spring
11.Stator
12.Friction disc mounting screws
Z. Air gap
6
4
2
6
3
5
2-4 Structure diagram of electromagnetic brake
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