Shaft sleeve of insulation switch transmission shaft

Abstract

The invention discloses a shaft sleeve of an insulation switch transmission shaft, wherein the insulation switch transmission shaft can keep containing coil continuously, can further guarantee the transmission shaft to perform flexible movements any time in the long-term use. The inner surface of a shaft sleeve body is provided with a straight oil groove from top to bottom; the upper part of the body is provided with an oil pouring hole which is communicated with the outer part and the straight oil groove. According to the invention, the inner wall of the original shaft sleeve is improved into an inner wall of a shaft sleeve of a strip straight groove (a straight oil groove) and a spiral-shaped groove (an oil groove), the permeation effect of lubricating oil to the lower part and each part of a shaft sleeve can be strengthened, and the permeation speed rate is accelerated; additionally, in order to improve the shaft seal effect further, the upper part of the shaft sleeve is provided with a ring upper oil groove which has an effect of upper part shaft seal, and water is prevented from entering; and the lower part of the shaft sleeve is provided with a ring lower oil groove which has an effect of lower part shaft seal, and the lubrication oil is prevented from flowing out by utilizing the viscosity of the lubrication oil after aggregation.

Description

technical field [0001] The invention relates to the improvement of the structure of the shaft sleeve on the drive shaft in the power isolating switch. Background technique [0002] With the continuous development of the economy, people's requirements for the quality of power supply are getting higher and higher, and ensuring the safe and reliable operation of the power grid has become one of the key points of power work. In the power transmission process of the power system, the high-voltage disconnector is a large number of primary devices and plays a pivotal role; the performance of the high-voltage disconnector directly affects the reliability and safety of the external power supply of the power grid. [0003] At present, the applicant has found in his work that the GW4 type high-voltage isolating switch in operation is often jammed due to the shaft sleeve of the transmission shaft, which leads to unreliable opening and closing during the change of the power grid, which i...

AI Technical Summary

Problems solved by technology

[0003] At present, the applicant has found in his work that the GW4 high-voltage isolating switch being used in operation is often jammed due to the shaft sleeve of the drive shaft, which leads to unreliable opening and closing during the change of the power grid, which is harmful to the personal safety and security of the operators. The safety and reliability of power supply poses a great threat

According to statistical analysis and market research, it is found that GW4 type disconnectors are widely used in the system, and such defects of jamming are common. However, there are almost no improved devices for such defects on the market, and the demand is great.

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