Advantages of self-lubricating heat dissipation seamless steel pipe for angle steering rotating shaft

Self-lubricating and heat-dissipating seamless steel pipes for angle steering shafts includeInner tube body, outer tube body and connecting ring. The outer circumferential surface at both ends of the inner tube body is provided with external threads, the inner circumferential surface at both ends of the outer tube body is provided with internal threads, the connecting ring is provided between the inner tube body and the outer tube body and is threaded to connect the inner tube body and the outer tube body, the inner tube body is a powder metallurgy pipe, the outer tube body is a seamless steel pipe, and several oil storage grooves are evenly opened on the inner circumferential surface of the inner circumference along the central axis of the inner tube body, A cooling cavity is formed between the inner tube body, the outer tube body and the connecting rings on both sides, and the cooling cavity is filled with lubricating oil.

A fixed ring is coaxially fixed at one end of the connecting ring, an outer radius of the fixed ring is equal to an outer radius of the outer tube body, and an inner radius of the fixed ring is greater than an inner radius of the inner tube body. A sealing ring is coaxially fixedly installed on the end face of the fixing ring and the connecting ring, the radius of the sealing ring is greater than the radius of the connecting ring, and the sealing ring is located between the end face of the outer tube body and the end face of the fixing ring. The oil storage tank is a semi-cylindrical tank, and the length direction of the oil storage tank is parallel to the length direction of the inner tube body.

When the angle steering rotating shaft is in use, the steel pipe is sleeved on the rotating shaft. The rotating shaft rotates and the inner tube body frictions, friction and heat. The temperature of the inner tube body increases, the volume of the inner tube body expands, and the inner tube body The hole becomes larger, and the amount of lubricating oil in the cooling cavity immersed in the hole increases, which further reduces the friction between the inner tube body and the rotating shaft, and plays a better self-lubricating effect.