Self-receding type pumping unit horse head device

Abstract

The utility model discloses a self-abdicating type pumping unit horse head device, which comprises a walking beam, a horse head body and a driving piece, the horse head body comprises two half horse heads, the two half horse heads are oppositely arranged at the end part of the walking beam, the two half horse heads are rotatably connected with the end part of the walking beam, and bent racks are fixedly connected with the opposite sides of the two half horse heads; the driving part is connected with the two bent racks, the driving part is used for driving the two bent racks to rotate and enabling the two half horseheads to give way or reset, a giving way mechanism of the horsehead body is formed through the arrangement of the bent racks, and furthermore, the half horseheads driven by the bent racks are lighter in weight through the arrangement of the two half horseheads; and the horse head body can be turned and abdicated more conveniently, a worker does not need to operate through a rope, and the labor intensity is effectively relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pumping units, and particularly relates to a self-yielding pumping unit pony head device. Background Art

[0002] During the process of oil production by pumping units, well workover operations need to be carried out on oil wells frequently. To ensure sufficient space for well workover operations so that equipment such as the big hook of the workover rig can work smoothly above the oil well, the usual method is to adopt the way of pony head yielding. For example, the utility model patent with the authorization publication number CN212563180U and the name of a walking beam pumping unit pony head yielding device includes a walking beam, a pony head, and a limiting component. A middle shaft is vertically inserted and connected at the front end of the walking beam. Both ends of the middle shaft are rotatably connected with bearing seats, and the bearing seats are respectively fixedly connected to the upper and lower connecting plates of the pony head through bolts. The limiting component includes two clamping plates, a connecting column, and a cylinder. When the output end of the cylinder is at the most front-end position, the two clamping plates clamp the left and right sides of the upper and lower connecting plates of the pony head, making the pony head unable to rotate. When the output end of the cylinder is at the most rear-end position, the two clamping plates are disengaged from clamping the connecting plates, and the pony head can be rotated to yield.

[0003] However, the above device still requires manual pulling of the pony head through a rope to achieve yielding or resetting, resulting in a relatively large labor intensity. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above technical deficiencies, and propose a self-yielding pumping unit pony head device to solve the technical problem of large labor intensity in manually pulling the pony head in the prior art.

[0005] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a self-yielding pumping unit pony head device, including:

[0007] A walking beam;

[0008] A pony head body, the pony head body includes a pair of half pony heads, the two half pony heads are oppositely arranged at the end of the walking beam, and both the two half pony heads are rotatably connected to the end of the walking beam. A curved rack is fixedly connected to the side of each of the two half pony heads facing away from each other; and

[0009] A driving member, the driving member is connected to the two curved racks, and the driving member is used to drive the two curved racks to rotate and make the two half pony heads yield or reset.

[0010] In some embodiments, a pair of sliding holes are opened on the side wall of the walking beam, the two sliding holes are oppositely arranged, and the ends of the two curved racks far away from the half pony heads are respectively slidably sleeved in the two sliding holes.

[0011] In some embodiments, the height difference between the two curved racks is the same as the height difference between the two sliding holes, and the curved racks correspond to the sliding holes one by one.

[0012] In some embodiments, a cavity is opened in the walking beam, and a gear column is rotatably connected in the cavity. The gear column is respectively meshed with the two curved racks. The driving member is connected to the gear column, and the driving member is used to drive the gear column to rotate and drive the two curved racks to rotate.

[0013] In some embodiments, a through hole is formed on the top of the cavity, and the movable end of the driving member passes through the through hole and is fixedly connected to the gear column.

[0014] In some embodiments, the fixed end of the driving member is fixedly connected to the walking beam, and a sealing ring is installed at the connection between the fixed end of the driving member and the walking beam.

[0015] In some embodiments, the two half-donkey heads are fixedly connected to a hinge rod on one side of the rocker beam, and a pair of hinge holes are opened at one end of the rocker beam facing the half-donkey heads. The hinge rod is rotatably mounted in the hinge holes, and the two hinge rods correspond to the two hinge holes one by one.

[0016] In some embodiments, grooves are provided on the sides of the two half-donkey heads facing away from the walking beam, and the grooves are used to install the sucker rods.

[0017] In some embodiments, both of the half donkey heads are provided with relative weight-reducing holes.

[0018] In some embodiments, the other end of the walking beam away from the donkey head body is connected to the oil pump.

[0019] Compared with the prior art, the utility model provides a self-yielding oil pump donkey head device, which, through the setting of a bent rack, constitutes a yielding mechanism for the donkey head body. Further, through the setting of two half donkey heads, the weight of the half donkey head driven by each bent rack is made lighter, which makes it easier to flip and yield the donkey head body. There is no need for workers to operate with ropes, which effectively reduces the labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of a self-yielding oil pumping unit donkey head device provided by an embodiment of the utility model;

[0021] Figure 2 yes Figure 1 Schematic diagram of the connection between the middle donkey head body and the driving part;

[0022] Figure 3 yes Figure 1 Schematic diagram of the structure of the midstream beam.

[0023] Description of reference numerals: 1. Beam; 11. Slide hole; 12. Cavity; 121. Through hole; 14. Hinge hole; 2. Donkey head body; 21. Half donkey head; 211. Hinge rod; 212. Groove; 213. Weight reduction hole; 22. Bent rack; 3. Driving member; 31. Gear column; 32. Sealing ring; 4. Sucker rod; 5. Pumping unit. Detailed implementation manners

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] In order to solve the technical problem of large labor intensity in manually pulling the donkey head, the present utility model provides a self-yielding pumping unit donkey head device, which can realize automatic yielding and resetting.

[0026] It should be noted that the self-yielding pumping unit donkey head device described in the present utility model is used for but not limited to pumping units, etc. For the convenience of description, in the present utility model, only a self-yielding pumping unit donkey head device applied to a pumping unit is taken as an example for description, and the principle of a self-yielding pumping unit donkey head device applied to other types of equipment is substantially the same as that applied to a pumping unit, and will not be elaborated herein one by one.

[0027] Please refer to Figure 1 - Figure 3 where Figure 1 is a schematic structural diagram of a self-yielding pumping unit donkey head device in an embodiment of the present utility model. A self-yielding pumping unit donkey head device includes a beam 1, a donkey head body 2 and a driving member 3. The donkey head body 2 includes a pair of half donkey heads 21. The two half donkey heads 21 are oppositely arranged at the end of the beam 1, and both half donkey heads 21 are rotatably connected to the end of the beam 1. Bent racks 22 are fixedly connected to the opposite sides of the two half donkey heads 21; and the driving member 3 is connected to the two bent racks 22, and the driving member 3 is used to drive the two bent racks 22 to rotate and make the two half donkey heads 21 yield or reset.

[0028] In this embodiment, through the arrangement of the bent rack 22, a yielding mechanism of the donkey head body 2 is formed. Further, through the arrangement of the two half donkey heads 21, the weight of the half donkey head 21 driven by each bent rack 22 is lighter, which makes it easier for the donkey head body 2 to turn and yield, and there is no need for staff to operate through ropes, effectively reducing the labor intensity.

[0029] First, the driving member 3 is activated, and the two curved racks 22 rotate relative to each other, thereby driving the two half-pumping units 21 to flip away from each other to achieve displacement; then, the workover operation is started; finally, after the workover operation is completed, the driving member 3 is activated, and the two curved racks 22 rotate away from each other, thereby driving the two half-pumping units 21 to flip relative to each other to achieve reset.

[0030] Furthermore, the driving member 3 adopts a servo motor, so that the movable end of the driving member 3 can achieve forward and reverse rotation, and further enables the curved rack 22 to drive the pumping unit body 2 to achieve displacement or reset.

[0031] In one embodiment, please refer to Figure 1 - Figure 3 , a pair of sliding holes 11 are formed in the side wall of the walking beam 1, the two sliding holes 11 are arranged oppositely, and the ends of the two curved racks 22 far from the half-pumping unit 21 are respectively sleeved in the two sliding holes 11 in a sliding manner.

[0032] In this embodiment, the function of the sliding hole 11 is to limit the moving direction of the curved rack 22 and improve the stability of the curved rack 22 during the moving process.

[0033] In one embodiment, please refer to Figure 2 - Figure 3 , the height difference between the two curved racks 22 is the same as the height difference between the two sliding holes 11, and the curved racks 22 and the sliding holes 11 are in one-to-one correspondence.

[0034] In this embodiment, the heights between the two curved racks 22 and between the two sliding holes 11 are both one high and one low, and the height difference between the two curved racks 22 and the height difference between the two sliding holes 11 are at least 5 cm, effectively avoiding the situation that the two curved racks 22 interfere with each other during the moving process.

[0035] In one embodiment, please refer to Figure 1 - Figure 3 , a cavity 12 is formed in the walking beam 1, a gear column 31 is rotatably connected in the cavity 12, the gear column 31 is respectively engaged with the two curved racks 22, the driving member 3 is connected with the gear column 31, and the driving member 3 is used for driving the gear column 31 to rotate and driving the two curved racks 22 to rotate.

[0036] In this embodiment, the top end of the gear column 31 is fixedly connected with the movable end of the driving member 3, and the bottom end of the gear column 31 is rotatably connected with the bottom of the cavity 12. In order to reduce the friction between the gear column 31 and the inner wall of the cavity 12, a bearing is installed at the bottom of the cavity 12, the outer ring of the bearing is fixedly connected with the bottom of the cavity 12, and the inner ring of the bearing is fixedly connected with the bottom end of the gear column 31.

[0037] In one embodiment, please refer to Figure 2 - Figure 3A through hole 121 is formed at the top of the cavity 12 , and the movable end of the driving member 3 passes through the through hole 121 and is fixedly connected to the gear column 31 .

[0038] In this embodiment, in order to improve the stability of the movable end of the driving member 3, a bearing is installed in the aperture of the through hole 121, the outer ring of the bearing is fixedly sleeved in the aperture of the through hole 121, and the inner ring of the bearing is fixedly sleeved on the outer wall of the movable end of the driving member 3.

[0039] In one embodiment, see Figure 1 - Figure 3 The fixed end of the driving member 3 is fixedly connected to the walking beam 1 , and a sealing ring 32 is installed at the connection between the fixed end of the driving member 3 and the walking beam 1 .

[0040] In this embodiment, the function of the sealing ring 32 is to prevent impurities or rainwater from penetrating into the cavity 12 from the connection between the fixed end of the driving member 3 and the walking beam 1, thereby accelerating the aging of the gear column 31 and the curved rack 22 and affecting the lubricity between the gear column 31 and the curved rack 22.

[0041] In one embodiment, see Figure 2 - Figure 3 The two halves of the donkey head 21 are fixedly connected to one side of the rocker 1 with an articulated rod 211, and the end of the rocker 1 facing the half donkey head 21 is provided with a pair of articulated holes 14, and the articulated rod 211 is rotatably sleeved in the articulated holes 14, and the two articulated rods 211 correspond to the two articulated holes 14 one by one.

[0042] In this embodiment, the arrangement of the hinge rod 211 and the hinge hole 14 enables the half donkey head 21 to flip over and give way along with the curved rack 22 .

[0043] In one embodiment, see Figure 1 A groove 212 is provided on one side of the two half donkey heads 21 away from the walking beam 1 , and the groove 212 is used to install the sucker rod 4 .

[0044] In this embodiment, the two grooves 212 of the two half donkey heads 21 are arranged opposite to each other. When the two half donkey heads 21 are spliced ​​into the donkey head body 2, the two grooves 212 are used to hang the sucker rod 4 together, so that the sucker rod 4 can run along with the operation of the donkey head body 2. At the same time, the sucker rod 4 gives the donkey head body 2 a self-locking function in reverse, further preventing the two half donkey heads 21 from separating.

[0045] In one embodiment, see Figure 2 The two halves of the donkey head 21 are both provided with relative weight-reducing holes 213 .

[0046] In this embodiment, the number of the weight-reducing holes 213 is several, and the weight-reducing holes 213 between the two halves of the donkey head 21 correspond one to one.

[0047] In one of the embodiments, please refer to Figure 1 , the other end of the walking beam 1 away from the pony head body 2 is connected to the pumping unit 5.

[0048] In this embodiment, the pumping unit 5 includes a support, a power source, etc., and is respectively connected to the walking beam 1. The pumping unit 5 is used to drive the walking beam 1 to operate, so as to make the pony head body 2 operate normally.

[0049] In order to better understand the present utility model, the following will combine Figures 1 to 3 to elaborate in detail on the technical solution of the present utility model:

[0050] First, the driving member 3 is started, and the gear column 31 rotates forward, so that the two curved racks 22 rotate relatively, and then drives the two half-pony heads 21 to flip away from each other to achieve yielding; then, the well servicing operation is started; finally, after the well servicing operation is completed, the driving member 3 is started, and the gear column 31 rotates reversely, so that the two curved racks 22 rotate away from each other, and then drives the two half-pony heads 21 to flip relatively to achieve reset. At the same time, the two spliced grooves 212 are connected to the sucker rod 4, so that the sucker rod 4 can be driven to operate when the pumping unit 5 operates. This solution does not require the staff to pull the rope to achieve yielding and reset, effectively reducing the labor intensity.

[0051] The above specific implementation manners of the present utility model do not constitute a limitation to the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A self-discharging oil pumping unit donkey head device, characterized in that: include: Traveling beam; A donkey head body, the donkey head body comprising a pair of half donkey heads, the two half donkey heads being arranged oppositely at the ends of the walking beam, and the two half donkey heads being rotatably connected to the ends of the walking beam, and the two half donkey heads being fixedly connected with a curved rack on opposite sides thereof; and A driving member is connected to the two curved racks, and is used to drive the two curved racks to rotate and make the two half-donkey heads give way or reset.

2. The self-discharging pumping unit donkey head device according to claim 1 is characterized in that: A pair of sliding holes is provided on the side wall of the walking beam, and the two sliding holes are arranged opposite to each other, and the ends of the two bent racks away from the half donkey head are respectively slidably sleeved on the two sliding holes.

3. The self-discharging pumping unit donkey head device according to claim 2 is characterized in that: The height difference between the two curved racks is the same as the height difference between the two sliding holes, and the curved racks correspond to the sliding holes one by one.

4. The self-discharging pumping unit donkey head device according to claim 1 is characterized in that: A cavity is provided in the walking beam, a gear column is rotatably connected in the cavity, the gear column is respectively meshed with the two curved racks, the driving member is connected to the gear column, and the driving member is used to drive the gear column to rotate and drive the two curved racks to rotate.

5. The self-discharging pumping unit donkey head device according to claim 4 is characterized in that: A through hole is formed on the top of the cavity, and the movable end of the driving member passes through the through hole and is fixedly connected to the gear column.

6. The self-discharging oil pumping unit donkey head device according to claim 1 is characterized in that: The fixed end of the driving member is fixedly connected to the walking beam, and a sealing ring is installed at the connection between the fixed end of the driving member and the walking beam.

7. The self-discharging oil pumping unit donkey head device according to claim 1 is characterized in that: The two half-donkey heads are fixedly connected to a hinge rod on one side facing the walking beam, and a pair of hinge holes are opened at one end of the walking beam facing the half-donkey heads. The hinge rod is rotatably sleeved in the hinge holes, and the two hinge rods correspond to the two hinge holes one by one.

8. The self-discharging pumping unit donkey head device according to claim 1 is characterized in that: A groove is provided on one side of the two half donkey heads away from the walking beam, and the groove is used for installing the sucker rod.

9. The self-discharging pumping unit donkey head device according to claim 1 is characterized in that: The two half donkey heads are both provided with relative weight-reducing holes.

10. The self-discharging oil pumping unit donkey head device according to claim 1, characterized in that: The other end of the walking beam away from the donkey head body is connected to the oil pump.

Images