2results about How to "With self-lubricating function" patented technology

The invention discloses an elastic expansion sleeve clamp applied to turning of a lightweight differential shell and a using method of the elastic expansion sleeve clamp, and relates to the technical field of elastic expansion sleeve clamps. Comprising a carrying structure which is assembled with the end part in a lathe of the differential shell through a positioning bolt; and the driving source is arranged in the carrying structure and forms an insertion matching relationship with the carrying structure. The traction assembly and oil liquid circulation are introduced into the clamping assembly, the double effects of clamping and traction are achieved, a traction magnetic attraction rod is matched with a return spring, trace axial traction force can be applied to a shell in the clamping process, a workpiece automatically tends to a machining datum plane in the positioning process, the clamping precision is further improved, and meanwhile, the clamping efficiency is improved. An oil injection channel and an oil drainage channel arranged in the blocking ring column are communicated with the oil storage sleeve, closed lubricating oil circulation can be formed in the clamping mechanism, low-friction operation of a transmission part is kept, the service life is prolonged, and the automatic return and self-lubricating functions are achieved.

This invention relates to a triboelectric bearing, an in-situ monitoring system for operational status, and a method for manufacturing the same. The triboelectric bearing comprises a bearing body and a semiconductor coating. The bearing body includes a conductive stationary ring, a conductive moving ring, and a conductive roller. The conductive roller is located between the conductive stationary ring and the conductive moving ring. At least one of the conductive stationary ring and the conductive moving ring serves as a substrate. The semiconductor coating is disposed on the substrate. The conductive roller contacts the semiconductor coating to generate a direct current when it moves relative to the semiconductor coating. Alternatively, the conductive roller serves as the substrate, the semiconductor coating is disposed on the substrate, and both the conductive stationary ring and the conductive moving ring contact the semiconductor coating and generate a direct current when they move relative to the semiconductor coating. The triboelectric bearing of this invention not only possesses the mechanical functions of a traditional bearing but also achieves self-powered and in-situ monitoring characteristics, effectively solving problems such as limited sensor installation space, the need for external power supply, and high maintenance costs in bearing monitoring technologies.