CN219197295U

CN219197295U - Telescopic beam of pumping unit

Info

Publication number: CN219197295U
Application number: CN202223502978.7U
Authority: CN
Inventors: 刘兵; 王文浩; 王依明; 范传勇; 李自广; 刘喜才
Original assignee: Puyang Yuanheng Litong Petroleum Machinery Co ltd
Current assignee: Puyang Yuanheng Litong Petroleum Machinery Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-16
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to the technical field of pumping units, in particular to a telescopic walking beam of a pumping unit. Including the walking beam body, its characterized in that, the one end internal slip that the horse head was kept away from to the walking beam body is provided with interior wiper arm, this internal drive arrangement that is provided with of walking beam, this internal length direction motion along the walking beam body of wiper arm of drive arrangement drive, interior wiper arm one end extends to the walking beam body outside, rotate on the outside interior wiper arm one end of walking beam body and be connected with the round pin axle, swing arm one end is connected with the round pin axle rotation, is provided with the counter weight on the swing arm other end, the swing arm passes through wire rope with the walking beam body and is connected, wire rope bypasses the round pin axle upper end. According to the utility model, in the process of enabling the inner sliding arm to move towards the outer side of the walking beam body, the swing arm drives the counterweight to swing towards the direction away from the fulcrum of the walking beam by arranging the steel wire rope connected with the swing arm and the walking beam body, and the large-scale adjustment of the balance arm of the walking beam body can be realized in the process of enabling the inner sliding arm to move for a short distance.

Description

Telescopic beam of pumping unit

Technical Field

The utility model relates to the technical field of pumping units, in particular to a telescopic walking beam of a pumping unit.

Background

In oil field production, the torque output by the motor during pumping is far greater than the torque during no pumping, the peak value change of the motor is large, the utilization rate of the motor is low, and the system efficiency of the pumping unit is also low. In order to solve the problem, in the beam pumping unit, a fixed configuration block or a movable configuration block is added at the tail part of the beam, and the movable balancing weight realizes balancing by adjusting the position of the configuration block on the beam by using a motor or a hydraulic system.

In the prior art, as in the patent with publication number CN214741245U, entitled "a walking beam type oilfield pumping unit convenient for balance adjustment", the electric telescopic rod 14 drives the moving block 18 to move along the length direction of the connecting block 20, so as to change the position of the moving block 18 on the connecting block 20, and the position of the moving block 18 is adjusted to adjust the balance of the walking beam 4. However, since the movement distance of the moving block 18 is limited, the adjustment range of the length of the equilibrium arm of the walking beam 4 in this patent is limited. If the movement distance of the moving block is increased by increasing the lengths of the connecting block 20 and the electric telescopic rod 14, so that the adjustable range of the length of the balance arm of the walking beam 4 is increased, the overall length of the walking beam 4 tends to be increased, and thus, the overall stability of the walking beam 4 in the movement process is affected.

In the patent with the application number of CN201320318166.9 and the name of 'variable-moment balance energy-saving device for beam-pumping unit' of the utility model, when the arm of force of a beam is regulated, the angle of a swing arm 4 is changed along with the control of the telescopic arm 2 in the telescopic process, namely, the balance weight 1 can be far away from or close to the fulcrum of the beam in the process of the short-distance movement of the telescopic arm 2, so that the length of the balance arm of force of the beam can be regulated rapidly, and meanwhile, the whole distance of the beam is short, and the influence on the stability performance of the beam operation is small. However, the motor 11 in this patent is exposed to the outside for a long period of time, and the pumping unit operates in a severe environment for a long period of time, and the service life of the exposed motor 11 is affected. Moreover, because pull rod clamp 6 passes through pull rod 5 swing joint with last clamp 3B, the both ends of pull rod 5 respectively with the pin joint that upper clamp 3B and pull rod clamp 6 formed need the fat liquoring lubrication, when maintaining, not only need lubricate the maintenance to the pin joint that pull rod 5 and upper clamp 3B and pull rod clamp 6 formed, still need to carry out the fat liquoring maintenance to the pin joint between lower clamp 3A and telescopic boom 2, increased the work load of fat liquoring lubrication maintenance. The beam-pumping unit beam torque-changing balance energy-saving device occupies the upper space of the beam, has larger volume and is inconvenient to transport.

Disclosure of Invention

The utility model aims to solve the technical problems that the whole working stability of the walking beam can be ensured, the maintenance efficiency can be improved, the labor intensity of maintenance personnel is reduced, the whole volume of the walking beam is small, and the telescopic walking beam of the pumping unit is convenient to transport.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the telescopic walking beam of the pumping unit comprises a walking beam body, wherein an inner sliding arm is arranged in one end, far away from the horsehead, of the walking beam body in a sliding manner, a driving device is arranged in the walking beam body and drives the inner sliding arm to move in the length direction of the walking beam body, one end of the inner sliding arm extends to the outside of the walking beam body, a pin shaft is rotatably connected to one end of the inner sliding arm outside the walking beam body, one end of a swing arm is rotatably connected with the pin shaft, the swing arm is obliquely arranged, a counterweight is arranged at the other end of the swing arm, the swing arm is connected with the walking beam body through a steel wire rope, and the steel wire rope bypasses the upper end of the pin shaft.

Specifically, an ear plate is fixed on one end of the inner sliding arm outside the walking beam body, and a pin shaft is rotationally connected to the ear plate.

Specifically, drive arrangement is including fixing the fixing base in the walking beam body, rotates on the fixing base and is connected with the lead screw, and the axial direction of lead screw is parallel with the length direction of walking beam body, and this internal motor and the reduction gear of being fixed with of walking beam, the output shaft of motor and the input shaft fixed connection of reduction gear, the output shaft and the lead screw fixed connection of reduction gear, interior arm of sliding internal fixation have the follow-up seat, and the lead screw runs through the follow-up seat and rather than threaded connection.

Specifically, the round pin axle runs through swing arm and otic placode, and the epaxial threaded connection of round pin has the baffle ring, and the epaxial fixed ring that is fixed with of round pin, otic placode and swing arm are located between baffle ring and the fixed ring, and the epaxial cover of changeing of round pin of fixed ring front side is equipped with the swivel, and the swivel outer fringe processing has the annular, and wire rope is located annular upper portion.

Specifically, the radiating holes corresponding to the motors are formed in the lower ends of the walking beam bodies.

Specifically, be fixed with first dead lever on the swing arm, be fixed with the second dead lever on the walking beam body, wire rope one end and first dead lever fixed connection, wire rope other end and second dead lever fixed connection.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, in the process of enabling the inner sliding arm to move towards the outer side of the walking beam body, the swing arm drives the counterweight to swing towards the direction away from the fulcrum of the walking beam by arranging the steel wire rope connected with the swing arm and the walking beam body, so that the large-scale adjustment of the balance arm of the walking beam body can be realized in the process of enabling the inner sliding arm to move for a short distance, the overall length of the walking beam body can be reduced, and the stability of the walking beam body in the moving process is ensured.

2. The motor and the speed reducer are positioned inside the walking beam body, so that the motor and the speed reducer can be sand-proof and rainproof, and the service lives of the motor and the speed reducer can be prolonged.

3. The motor and the speed reducer are positioned inside the walking beam body, so that the occupied space of the walking beam body can be reduced, and the walking beam body is convenient to transport. Compared with the method for adjusting balance by increasing or reducing the balancing weight, the method for changing the balance of the walking beam body by utilizing the extension and contraction of the inner sliding arm in the walking beam body is more convenient to operate and has low operation intensity.

4. Swing arm slope sets up, and when horse head upward sloping on the walking beam body, the counter weight can be close to ground, and the security of the operation in-process of increasing or reducing the balancing weight in to the counter weight is high, conveniently operates. The balance of the walking beam body is changed by utilizing the expansion and contraction of the inner sliding arm in the walking beam body, so that the number of balancing weights can be reduced, the cost is saved, and the whole weight of the pumping unit is lightened.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a side view of the pin.

The names of the parts in the drawings are as follows:

1. beam body

2. Inner slide arm

3. Follow-up seat

4. Fixing seat

5. Motor with a motor housing

6. Speed reducer

7. Ear plate

8. Pin shaft

9. Swing arm

10. Counterweight for vehicle

11. First fixing rod

12. Second fixing rod

13. Wire rope

14. Fixing ring

15. Annular groove

16. Baffle ring

17. Swivel ring

18. And (5) a screw rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-2, a telescopic beam for a pumping unit includes a beam body 1. An inner sliding arm 2 is arranged at one end of the walking beam body 1 far away from the horsehead in a sliding way. A driving device is arranged in the walking beam body 1, and the driving device drives the inner sliding arm 2 to move in the walking beam body 1 along the length direction of the walking beam body 1. One end of the inner sliding arm 2 extends to the outside of the walking beam body 1, and a pin shaft 8 is rotatably connected to one end of the inner sliding arm 2 outside the walking beam body 1. An ear plate 7 is fixed on one end of the inner sliding arm 2 outside the walking beam body 1, and a pin shaft 8 is rotatably connected to the ear plate 7. One end of the swing arm 9 is rotatably connected with the pin shaft 8, and the swing arm 9 is obliquely arranged. The other end of the swing arm 9 is provided with a counterweight 10. The swing arm 9 is fixed with a first fixed rod 11, the walking beam body 1 is fixed with a second fixed rod 12, and one end of the steel wire rope 13 is fixedly connected with the first fixed rod 11. The other end of the steel wire rope 13 is fixedly connected with the second fixed rod 12. The wire rope 13 winds around the upper end of the pin shaft 8.

In the process that the driving device enables the inner slide arm 2 to move towards the outer side of the walking beam body 1, the swing arm 9 can drive the counterweight 10 to swing towards the direction far away from the fulcrum of the walking beam body 1 by arranging the steel wire rope 13 connected with the swing arm 9 and the walking beam body 1. The balance arm of the walking beam body 1 can be adjusted in a large range in the process of the short-distance movement of the inner slide arm 2. The whole length of the walking beam body 1 can be reduced, and the stability of the whole walking beam body 1 in the movement process is ensured.

The swing arm 9 is obliquely arranged, and when the horsehead on the walking beam body 1 is inclined upwards, the counterweight 10 can be close to the ground. The safety is high during the operation of adding or reducing the weight 10 blocks into the weight 10, and the operation is convenient.

The driving device comprises a fixed seat 4 fixed in the walking beam body 1, a screw rod 18 is rotatably connected to the fixed seat 4, and the axial direction of the screw rod 18 is parallel to the length direction of the walking beam body 1. A motor 5 and a speed reducer 6 are fixed in the walking beam body 1. And a heat dissipation hole corresponding to the motor 5 is formed in the lower end of the walking beam body 1. An output shaft of the motor 5 is fixedly connected with an input shaft of the speed reducer 6, and an output shaft of the speed reducer 6 is fixedly connected with a lead screw 18. The inner slide arm 2 is internally fixed with a follower seat 3, and a lead screw 18 penetrates through the follower seat 3 and is in threaded connection with the follower seat.

The motor 5 and the speed reducer 6 are positioned inside the walking beam body 1, so that the purposes of sand prevention and rain prevention can be achieved for the motor 5 and the speed reducer 6, and the service lives of the motor 5 and the speed reducer 6 can be prolonged. Can reduce the occupation space of walking beam body 1, conveniently transport walking beam body 1.

The pin shaft 8 penetrates through the swing arm 9 and the lug plate 7. The pin shaft 8 is connected with a baffle ring 16 in a threaded manner. A fixing ring 14 is fixed on the pin shaft 8. The ear plate 7 and the swing arm 9 are located between the stop ring 16 and the securing ring 14. The pin shaft 8 at the front side of the fixed ring 14 is rotatably sleeved with a rotating ring 17, and the outer edge of the rotating ring 17 is provided with a ring groove 15. The wire 13 is located in the upper portion of the groove 15. The wire rope 13 is tensioned during the movement of the inner slide arm 2 in the direction of the outside of the walking beam body 1. By providing the swivel 17, the friction between the wire rope 13 and the pin 8 can be reduced. By providing the ring groove 15, it is possible to ensure that the wire rope 13 is always in contact with the swivel 17.

When the balance arm of the walking beam body 1 needs to be increased, the motor 5 is started, the motor 5 drives the screw rod 18 to rotate through the speed reducer 6, and in the process of rotating the screw rod 18, the inner sliding arm 2 moves towards the outer direction of the walking beam body 1. The inner slide arm 2 drives the counterweight 10 to be far away from the fulcrum of the walking beam body 1 through the swing arm 9. In the process that the inner slide arm 2 moves towards the outside direction of the walking beam body 1, the steel wire rope 13 is tensioned, the swing arm 9 drives the counterweight 10 to swing towards the fulcrum direction far away from the walking beam body 1, and in the process that the inner slide arm 2 moves for a short distance, the large-scale adjustment of the balance arm of the walking beam body 1 can be realized, and the length of the balance arm of the walking beam body 1 can be rapidly increased.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The telescopic beam of the pumping unit comprises a beam body (1), and is characterized in that the beam body (1) is far away from an inner sliding arm (2) which is arranged in one end of a horsehead in a sliding manner, a driving device is arranged in the beam body (1), the driving device drives the inner sliding arm (2) to move in the beam body (1) along the length direction of the beam body (1), one end of the inner sliding arm (2) extends to the outside of the beam body (1), a pin roll (8) is rotationally connected to one end of the inner sliding arm (2) outside the beam body (1), one end of a swing arm (9) is rotationally connected with the pin roll (8), the swing arm (9) is obliquely arranged, a counterweight (10) is arranged at the other end of the swing arm (9), the swing arm (9) is connected with the beam body (1) through a steel wire rope (13), and the steel wire rope (13) bypasses the upper end of the pin roll (8).

2. The telescopic beam for the pumping unit according to claim 1, wherein an ear plate (7) is fixed on one end of an inner sliding arm (2) outside the beam body (1), and a pin shaft (8) is rotatably connected to the ear plate (7).

3. The telescopic walking beam of the pumping unit according to claim 1, wherein the driving device comprises a fixed seat (4) fixed in the walking beam body (1), a screw rod (18) is rotationally connected to the fixed seat (4), the axial direction of the screw rod (18) is parallel to the length direction of the walking beam body (1), a motor (5) and a speed reducer (6) are fixed in the walking beam body (1), an output shaft of the motor (5) is fixedly connected with an input shaft of the speed reducer (6), an output shaft of the speed reducer (6) is fixedly connected with the screw rod (18), a follow-up seat (3) is fixed in the inner sliding arm (2), and the screw rod (18) penetrates through the follow-up seat (3) and is in threaded connection with the follow-up seat.

4. The telescopic walking beam of the pumping unit according to claim 2, wherein the pin shaft (8) penetrates through the swing arm (9) and the lug plate (7), the baffle ring (16) is connected to the pin shaft (8) in a threaded mode, the fixed ring (14) is fixed to the pin shaft (8), the lug plate (7) and the swing arm (9) are located between the baffle ring (16) and the fixed ring (14), the rotating ring (17) is sleeved on the pin shaft (8) at the front side of the fixed ring (14) in a rotating mode, the annular groove (15) is machined on the outer edge of the rotating ring (17), and the steel wire rope (13) is located in the upper portion of the annular groove (15).

5. A telescopic walking beam for a pumping unit according to claim 3, wherein the lower end of the walking beam body (1) is provided with a heat dissipation hole corresponding to the motor (5).

6. The telescopic walking beam of the pumping unit according to claim 1, wherein a first fixing rod (11) is fixed on the swing arm (9), a second fixing rod (12) is fixed on the walking beam body (1), one end of the steel wire rope (13) is fixedly connected with the first fixing rod (11), and the other end of the steel wire rope (13) is fixedly connected with the second fixing rod (12).