Screw drilling tool motor stator

Screw drilling tool motor stator

  • CN 101,656,438 B
  • Filed: 09/15/2009
  • Issued: 10/02/2013
  • Est. Priority Date: 09/15/2009
  • Status: Active Grant
First Claim
Patent Images

1. screw drilling tool motor stator, comprise housing and rubber bushing, rubber bushing and housing endoporus are bonding, the rubber bushing endoporus is the continuous helical line style, the radial section of rubber bushing is circumferentially uniform petal-shaped, and has the petal periphery, it is characterized in that rubber bushing at the wall thickness of radial section for not waiting wall thickness, rubber bushing each petal on radial section is to its wall thickness of evagination highest point from the indent lowest part and increases progressively shape, and maximum ga(u)ge is 1.2~

  • 1.6 times of minimum thickness, and the shape of each petal is identical on the radial section;

    Described rubber bushing each petal on radial section is the linear increment shape from indent lowest part to its wall thickness of evagination highest point, perhaps is the non-linear increasing shape.

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