Eccentric swing type planetary gear speed reducer capable of increasing output torque

Eccentric swing type planetary gear speed reducer capable of increasing output torque

  • CN 106,402,285 A
  • Filed: 11/16/2016
  • Published: 02/15/2017
  • Est. Priority Date: 11/16/2016
  • Status: Active Grant
First Claim
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1. a kind of eccentric oscillating-type planetary gear deceleration device increasing output torque, including internal-gear, external tooth gear, songArbor and supporter, external tooth gear has at least one crank axis hole and multiple through hole, and external tooth gear periphery has and internal toothThe internal tooth of gear engage each other and few 1 of gear ratio internal tooth external tooth;

  • Described crank axle is inserted in crank axle in the hole, by sameStep rotates each crank axle makes external tooth gear eccentric swing, and described supporter is the column being plugged in each through hole, for rotatingSupport each bent axle;

    It is characterized in that:

    Described internal-gear, is provided with multiple elliptical cylinder rollers in inner circumferential with a constant pitch PThe internal tooth constituting, and make composition internal tooth transverse tooth thickness S be reduced to tooth top to external tooth to radius divided by the ratio of a constant pitch P of internal toothExceed internal tooth tooth root outside direction, and at least excision exceedes the external tooth of the part of interior tooth root of internal gear, to avoid external tooth with thisInterference with column ellipse internal tooth tooth root;

    After excising aforementioned external teeth along the line V between flex point 04d of two flank of tooth and 04e, big apart from A between flex point 04d and 04eAdd the eccentric amount e institute to internal gear for the external gear in root radius R in internal gear is deducted by external tooth gear radius of addendum TDetermine position quantity.

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