Golf club type non-elastomer flexible seal adapting to rotor impact load

Abstract

The invention discloses a golf club type non-elastomer flexible seal adapting to rotor impact load. The golf club type non-elastomer flexible seal structurally comprises a golf club body sealing ring and an O-shaped sealing ring. The compressed O-shaped ring provides elastic force and pre-tightening force for the golf club body sealing ring, so that the golf club body sealing ring and the rotating shaft are always kept in an interference assembly relation, and effective contact type sealing is guaranteed. The structure of the golf club type non-elastomer flexible seal is innovated, and a sealing piece formed by processing a non-elastomer material (namely a PTFE material in the invention) has flexibility. The area, in line contact with the rotating shaft, on the circular ring section of the golf club body is defined as a lip-shaped structure, the contact area of a friction pair is effectively reduced in a line contact mode, and heat generated by friction and material abrasion are reduced. Due to the excellent deformability and recovery performance of the structure, permanent damage of shafting impact load and vibration (vortex motion) to the lip-shaped structure can be avoided, and the sealing service life is remarkably prolonged.

Description

technical field [0001] The invention can be applied to the oil seals of the shafting lubricating oil systems frequently subjected to shock loads, vibrations and large offset loads, such as the clutch oil seals of automobiles and ships, and the rotary seal fields of power and transmission devices in complex service environments. Background technique [0002] The failure of the sealing ring of a high-power clutch used in domestic ships has caused major failures of the hydraulic control system for many times, resulting in the inability of the friction clutch to be connected and discharged, which seriously affects the maneuverability of the ship. In addition, the shaft end skeleton oil seal of a certain type of marine clutch has serious wear, short life and low reliability during operation, which has become the most unstable factor in the entire marine transmission. In addition, the sealing rings used in the clutch oil distribution bushing of the integrated transmission device o...

AI Technical Summary

Problems solved by technology

However, the inventors have found that when the rotor bears impact loads or offset loads, or when the rotor whirls, the leakage of the PTFE oil seal in contact with the rotor is larger than the leakage of the skeleton oil seal of traditional rubber or Viton Larger, shorter service life and lower reliability

After a lot of analysis by the scientific research team, it was found that since the PTFE material is a non-elastomeric material, which is harder than rubber and other elastomer materials, its sealing lip is basically not conceited. When the rotor experiences torque impact load, eccentric load or whirl , destructive damage will appear on the lip of the PTFE seal, which will directly cause leakage channels, that is, the PTFE oil seal will fail immediately

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