Walking-beam balancing, diameter-adjusting and torque-changing energy saving oil pumping machine

Walking-beam balancing, diameter-adjusting and torque-changing energy saving oil pumping machine

  • CN 2,312,323 Y
  • Filed: 12/31/1997
  • Issued: 03/31/1999
  • Est. Priority Date: 12/31/1997
  • Status: Active Grant
First Claim
Patent Images

1. beam balance diameter-adjusting and torque-changing energy-saving pumping unit, comprise horse head, walking beam, support, connecting rod crossbeam, base, crank, reducer, engine, polished rod eye, it is characterized in that the top of arm front end or lower hinge are at beam travelling tail end, and counterweight arm of force adjusting device is installed between the bottom of arm front end or top and the beam travelling tail end, the arm tail end is equipped with counter weight device.

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