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CN-224214159-U - Beam and horsehead connecting mechanism of beam pumping unit

CN224214159UCN 224214159 UCN224214159 UCN 224214159UCN-224214159-U

Abstract

The utility model relates to a connecting mechanism of a walking beam and a horsehead of a beam pumping unit, which comprises a horsehead and the walking beam, wherein an anti-drop hanger is arranged on the horsehead, a horsehead sliding pin is arranged on the horsehead, the two horsehead sliding pins are symmetrically and fixedly connected on two side plates of the horsehead, a horsehead hanging self-locking mechanism is symmetrically and fixedly connected on the two side plates at the front end of the walking beam, the horsehead hanging self-locking mechanism comprises a guiding positioning plate and an anti-drop self-locking sliding shaft, the guiding positioning plate is fixedly connected with an inner plate, a middle plate and an outer plate from inside to outside in sequence, guiding sliding grooves are respectively arranged on the three plates, the cross section shape of each guiding sliding groove is a horn opening and a vertical sliding groove from top to bottom in sequence, the left side of each vertical sliding groove is connected with a sliding shaft guide groove, and the sliding shaft guide groove is internally provided with a free sliding anti-drop self-locking sliding shaft. The horsehead and the walking beam are connected by adopting the self-hanging and self-locking mechanism, so that the horsehead can be easily hung and pulled on the ground through the operation of the crane without repeated climbing of an operator or assistance of the lifter.

Inventors

  • WANG YI

Assignees

  • 天津五一泰科机电科技有限公司

Dates

Publication Date
20260508
Application Date
20250620

Claims (8)

  1. 1. A connecting mechanism of a walking beam type pumping unit and a horse head comprises the horse head and the walking beam, wherein the horse head is provided with a hanging shaft and a positioning pin shaft, the upper top of the walking beam is fixedly connected with a groove for placing the horse head hanging shaft, the positioning pin shaft of the horse head is propped against the lower part of the end face of the walking beam, the connecting mechanism is characterized in that an anti-falling lifting appliance is arranged on the horse head, a horse head sliding pin is arranged between the horse head hanging shaft and the positioning pin shaft, the two horse head sliding pins are symmetrically fixedly connected to two side plates of the horse head, the two side plates at the front end of the walking beam are symmetrically fixedly connected with horse head hanging self-locking mechanisms, the guide positioning plate is fixedly connected with an inner plate, an intermediate plate and an outer plate from inside to outside in sequence, the inner plate, the intermediate plate and the outer plate are respectively provided with a guide sliding groove, the cross section shapes of the guide sliding pin grooves are a horn opening and a vertical sliding groove from top to bottom, the left side of the vertical sliding groove is connected with a sliding shaft guide groove, the sliding shaft guide groove is internally provided with a free sliding step-shaped anti-falling self-locking shaft, and the step-shaped self-locking shaft is supported on the inner plate and the self-locking shaft, and the self-locking shaft is supported on the intermediate plate and the self-locking shaft.
  2. 2. The connecting mechanism for the walking beam and the horsehead of the beam pumping unit according to claim 1, wherein the inner plate, the middle plate and the outer plate of the guiding locating plate have guiding sliding grooves with the dimensions of the inner plate guiding sliding groove, the outer plate guiding sliding groove and the middle plate guiding sliding groove.
  3. 3. The connecting mechanism for the walking beam and the horsehead of the walking beam type pumping unit according to claim 1, wherein the step short shaft diameter of the anti-falling self-locking sliding shaft corresponds to the guide sliding grooves of the inner plate, the middle plate and the outer plate respectively, and the sliding of the step short shaft diameter in the sliding grooves is kept.
  4. 4. The beam-horsehead connecting mechanism of a beam pumping unit according to claim 1, wherein the center line of the sliding shaft guide groove connected to the left side of the vertical sliding groove forms an inclination angle of 20 degrees with the horizontal line, and the left end is low.
  5. 5. The beam-pumping unit connecting mechanism of claim 1, wherein the anti-drop hanger at the upper part of the horsehead comprises a hanging ring pin shaft, a U-shaped hanging ring, a sector plate rotating shaft and a hanging hook, wherein the hanging ring pin shaft penetrates through the opening end of the U-shaped hanging ring and is in pin joint with the horsehead, a connecting plate is fixedly connected in the middle of the U-shaped hanging ring, a hanging hook is fixedly connected to the connecting plate, long grooves for overturning the sector plate are symmetrically formed in two sides of the connecting plate fixedly connected with the hanging hook, one side of the connecting plate is fixedly connected with the sector plate rotating shaft, the sector plate rotating shaft is sleeved with the sector plate, and the sector plate is arranged in the long grooves to overturn to form the anti-drop hanger structure of the horsehead.
  6. 6. The connecting mechanism for the walking beam and the horsehead of the beam pumping unit of claim 5, wherein the two ends of the opening of the U-shaped lifting ring are welded with circular rings, and a round hole in the middle of each circular ring supports a lifting ring pin shaft.
  7. 7. The connecting mechanism for the walking beam and the horsehead of the beam pumping unit of claim 5, wherein the U-shaped hanging ring is a U-shaped folded by round steel, and a reinforcing rib plate is welded at the bottom of a right angle of the U-shaped hanging ring.
  8. 8. The connecting mechanism for the walking beam and the horsehead of the beam pumping unit of claim 1, wherein the anti-falling lifting tool is hinged on the vertical gravity center line of the horsehead.

Description

Beam and horsehead connecting mechanism of beam pumping unit Technical Field The utility model belongs to the technical field of petroleum exploitation, and particularly relates to a connecting mechanism of a walking beam and a horsehead of a walking beam type pumping unit. Background The beam pumping unit is a main device for crude oil extraction, wherein the connection mode of the horsehead and the beam is critical to the disassembly and assembly of the horsehead and the abdication operation during well repair operation. The existing horseheads are formed by welding steel plates, are hollow and have arc-shaped structures with certain widths. The horseheads are provided with hanging shafts at positions corresponding to the top surfaces of the walking beams, and positioning pin shafts are arranged at positions corresponding to the bottom surfaces of the walking beams. During installation, the horsehead hanging shaft is placed in the groove corresponding to the top surface of the walking beam, and the positioning pin shaft is propped against the lower part of the end surface of the walking beam and locked. The horsehead abdication modes adopted at present are upturning, side turning, hanging and low head modes. Regardless of the horsehead abdication mode, operators need to climb up to a walking beam or climb up to a lifting vehicle to operate, the steps are numerous, the safety risk is high, and the operation cost is high. Disclosure of utility model The utility model aims to overcome the defects in the prior art, and provides a connecting mechanism for a walking beam and a horsehead of a walking beam type pumping unit, wherein the horsehead can be mounted and dismounted on the walking beam by using a lifting device, so that an operator can simply, conveniently and safely complete the operation by directly lifting the horsehead down during well repairing and abdicating. The utility model aims to achieve the aim, and the connecting mechanism of the walking beam and the horsehead of the beam pumping unit comprises the horsehead and the walking beam, wherein the horsehead is provided with a hanging shaft and a positioning pin shaft, the upper top of the walking beam is fixedly connected with a groove for placing the hanging shaft of the horsehead, and the positioning pin shaft of the horsehead butts against the lower part of the end face of the walking beam; the horse head is provided with an anti-falling lifting appliance, a horse head sliding pin is arranged between a horse head hanging shaft and a positioning pin shaft, the two horse head sliding pins are symmetrically and fixedly connected to two side plates of the horse head, two side plates at the front end of a walking beam are symmetrically and fixedly connected with horse head hanging self-locking mechanisms, each horse head hanging self-locking mechanism comprises a guide positioning plate and an anti-falling self-locking sliding shaft, the guide positioning plates are sequentially fixedly connected with an inner plate, a middle plate and an outer plate from inside to outside, guide sliding grooves are respectively formed in the inner plate, the middle plate and the outer plate, guide and locking guide plates for enabling the horse head sliding pin to enter and exit are sequentially formed, the cross section shape of each guide sliding groove is a horn opening and a vertical sliding groove from top to bottom, the left side of each vertical sliding groove is connected with a sliding shaft guide groove, the free-sliding anti-falling self-locking sliding shaft is arranged in each sliding shaft guide groove, and the shape of each anti-falling self-locking sliding shaft is a stepped round shaft, and the stepped shaft is respectively supported on the inner plate, the middle plate and the outer plate. Further, the guide sliding groove sizes of the inner plate, the middle plate and the outer plate of the guide positioning plate are that the inner plate guide sliding groove is smaller than the outer plate guide sliding groove size is smaller than the middle plate guide sliding groove size. Further, the step minor axis diameter of the anti-drop self-locking sliding shaft corresponds to the guide sliding grooves of the inner plate, the middle plate and the outer plate respectively, and the anti-drop self-locking sliding shaft is kept to slide in the sliding grooves. Further, the center line of the sliding shaft guide groove connected to the left side of the vertical sliding groove forms an inclination angle of 20 degrees with the horizontal line, and the left end is low. Further, the anticreep hoist on horsehead upper portion includes rings round pin axle, U-shaped rings, sector plate pivot and lifting hook, rings round pin axle runs through at U-shaped rings open end to with the horsehead pin joint, the rigid coupling has the connecting plate in the middle of the U-shaped rings, rigid coupling lifting hook on the connecting plate, and the bilateral symmetry of