Electric disc brake

Electric disc brakeElectric disc brake

At this point, the effective radius of the brake disc is increased, which can reduce the force of the brake caliper, decrease the unit pressure and working temperature of the pad. The diameter of the brake disc is usually selected based on the diameter of the wheel rim70%one79%The total mass is greater than2tThe car should have an upper limit. The thickness of the brake disc has an impact on the quality of the brake disc and the temperature rise during operation. To reduce the quality, the thickness of the brake disc should not be too large; In order to reduce temperature, the thickness of the brake disc should not be too small.

The brake disc can be made solid, or a ventilation duct can be cast in the middle of the brake disc for heat dissipation and ventilation purposes. The thickness of a generally solid brake disc can be taken as1020mmThe thickness of the ventilated brake disc is taken as20～50mmThe most commonly used is2030mmEmergency braking during high-speed motion can cause thermal deformation of the brake disc, resulting in shaking. To improve the heat dissipation performance of the brake disc friction surface, most brake discs are made into ventilated brake discs with a hollow center, which can lower the temperature of the brake disc20%～30%.

60MMSteps for torque wrench: Place the two halves of the brake on the support, so that the support is located in the middle of the two halves of the brake, and use fixing screwsM39X（405+B）Fix these two halves of the brake in place. （B-Brake disc thickness) installation nutM39The tightening torque for each nut is5000NMCheck the tightening torque of the relative nut. Check: brake disc parallelism,0.2The parallelism of support,0.2Symmetry of support relative to the disk:0.5II---Hydraulic connection.

Oil injection and exhaust are connected to the hydraulic station using oneM18X1.5Connect the brake to the hydraulic station, clean all pipes and joints, and ensure that the entire hydraulic system is clean (free of dust and fine debris) Recommended oil: anti-aging mineral oil,40The viscosity at ℃ is20-100squaremm/sStep: For each half of the brake, screw the randomly attached test exhaust pipe onto the exhaust screw and insert the other end into the mailbox or oil container. Using a hydraulic station.

High pressure:20Inject oil into the chamber of the piston using a manual pump, be careful not to leak or splash oil onto the brake disc. When there are no bubbles coming out of the pipe, unscrew the pipe and pay attention to the remaining oil in the pipeIIIGap between pads, pad wear. Adjustment of installation position deviation. Special attention: Regularly check the gap between each pad and the disc. The gap cannot exceed2.5MMThis value means that each pad has0.5MMWear and tear, decrease in braking torque15%exert190Ba's hydraulic pressure.

And maintain this pressure throughout the entire process. Loosen and tighten