Rotational axis oil seal

Rotational axis oil seal

CN
  • CN 201,045,410 Y
  • Filed: 06/14/2007
  • Issued: 04/09/2008
  • Est. Priority Date: 06/14/2007
  • Status: Active Grant
First Claim
Patent Images

1. rotary shaft oil seal, outer seal (2) central authorities are provided with spill port (12), it is characterized in that:

  • the inboard central authorities of outer seal (2) offer the cylindrical chamber greater than spill port (12), the cylindrical chamber inside bottom of outer seal (2) is offered the oil back chamber (14) of internal diameter greater than the cylindrical chamber internal diameter, the cylindrical chamber inwall of outer seal (2) is provided with internal spiral saw shape tooth (16), engage sleeves is equipped with solid of rotation (8) in the cylindrical chamber of outer seal (2), solid of rotation (8) is installed on the running shaft (7), the periphery of solid of rotation (8) be provided with outer seal (2) inwall on the external spiral saw shape rotary teeth (17) of the corresponding cooperation of saw shape tooth (16), the tooth angle and the teeth groove relative engagement of saw shape tooth (16) and rotary teeth (17), the internal diameter of spill port (12) is greater than the external diameter of running shaft (7).

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