Double-stage inner gearing rolling sleeve pump

Double-stage inner gearing rolling sleeve pump

  • CN 102,865,223 B
  • Filed: 09/14/2012
  • Issued: 12/31/2014
  • Est. Priority Date: 09/14/2012
  • Status: Active Grant
First Claim
Patent Images

1. a twin-stage internal messing roll sleeve pump, it comprises pump bracket and pump postoperculum, described pump bracket and described pump postoperculum are connected, it is characterized in that:

  • in pump bracket, gearwheel is set, middle gear and small gear, described middle gear has gear disk, hinge by being connected on gear disk has several roll sleeves, the roll sleeve of middle gear respectively with gearwheel, the flank engagement of small gear, described gearwheel is placed on the camshaft of pump postoperculum, gear disk and the motor shaft of described middle gear are connected, the gear disk outer end of middle gear is placed in pump bracket by mechanical seal, described small gear is hinged on the small gear bearing pin fixing with pump postoperculum, described gearwheel, the gear ratio of middle gear and small gear is;



    8, or 9;


    7, or 8;


    6, or 7;


    5, or 6;


    4, or 5;


    3, the number of teeth difference of gearwheel and middle gear is 1, middle gear and small gear number of teeth difference are 1, described roll sleeve is the roll sleeve that enhancing PTFE is made.

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