Common faults of camshafts

Common faults of camshafts
Simplified process of automobile brake S-type camshaft
The simplified process of the automobile brake S-type camshaft reduces the tonnage of the equipment, reduces the one-time investment of the equipment, and reduces the scrap rate, production cost and accidents.

The S-type camshaft for automobile braking system belongs to the technical field of automobile braking system. The S-type camshaft used in the automobile brake system of the present invention comprises a cam body connected to the end of the shaft body, the cam body is formed by connecting two cams with central symmetry, wherein the linear segment of the side of the cam and the linear segment of the back A convex involute segment is provided on the front linear segment.

The camshaft used in the automobile braking system of the utility model can achieve the effect of increasing the force by 30% by changing the profile of the cam edge, so that the automobile can be braked on a certain slope, the safety and reliability of the automobile braking are improved, and the braking performance of the brake is improved. torque, improving the performance of the parking brake, making the service brake more secure.
Common faults of camshafts

Common failures of camshafts include abnormal wear, abnormal noise, and fracture. Abnormal wear and tear symptoms often appear before abnormal noise and fracture occur. The following camshaft wholesale, camshaft manufacturers and camshaft brand companies will talk about it in detail.

(1) The camshaft is almost at the end of the engine lubrication system, so the lubrication condition is not optimistic. If the oil supply pressure of the oil pump is insufficient due to the long-term use, or the lubricating oil passage is blocked so that the lubricating oil cannot reach the camshaft, or the tightening torque of the bearing cap fastening bolts is too large, the lubricating oil cannot enter the camshaft clearance, and the Causes abnormal wear of the camshaft.

(2) The abnormal wear of the camshaft will cause the gap between the camshaft and the bearing seat to increase, and the axial displacement will occur when the camshaft moves, resulting in abnormal noise. Abnormal wear will also cause the gap between the drive cam and the hydraulic tappet to increase, and the cam will collide when combined with the hydraulic tappet, resulting in abnormal noise.

(3) Serious failures such as breakage of the camshaft sometimes occur. Common reasons include cracked hydraulic tappets or severe wear, severe poor lubrication, poor camshaft quality, and cracked camshaft timing gears.

(4) In some cases, the failure of the camshaft is caused by human reasons, especially when the engine is repaired, the camshaft is not properly disassembled and assembled. For example, when removing the camshaft bearing cover, use a hammer to knock it down or pry it with a screwdriver, or install the bearing cover in the wrong position, causing the bearing cover to not match the bearing seat, or the tightening torque of the bearing cover fastening bolts is too large. When installing the bearing cover, pay attention to the direction arrows and position numbers on the surface of the bearing cover, and use the torque wrench to tighten the bearing cover fastening bolts in strict accordance with the specified torque.