Oil pumping workover rig

Abstract

The invention discloses an oil pumping workover rig, and relates to the technical field of oil extraction, the oil pumping workover rig comprises a vehicle plate, the top of the vehicle plate is provided with a lifting assembly; through the arrangement of the fixing pile and the pin shaft, the oil cylinder pushes the fixing base to slide upwards on the surface of the fixing pile, so that the working platform is pushed to slide upwards, the lifting effect of the working platform can be achieved, then the height of a workover rig at the top of the working platform is finely adjusted, and the workover operation precision is improved; through the arrangement of the first air cylinder, the first air cylinder can drive the first driving plate to move, so that the working platform can be finely adjusted after the workover rig is supported and fixed to be close to or away from the workover position, the telescopic arm and the drill bit are driven to be close to or away from the workover position, and the situation that the distance between the workover rig and the workover position needs to be adjusted in the workover process is conveniently coped with; hydraulic supporting legs on the side face of the workover rig do not need to be folded and the workover rig does not need to be moved, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to the technical field of oil production, in particular to an oil pumping and workover rig. Background Art

[0002] A workover rig is a comprehensive equipment used for oil (gas) well maintenance and replacement of underground pipes or wellbore. It is widely used in oil and natural gas extraction and mining operations. Its main functions include tripping and lowering drilling tools, rotating operations, circulating well washing, etc. It is the most basic and important power source in underground operations.

[0003] Most of the workover rigs in the prior art are mobile workover rigs, which have the advantages of easy mobility, strong adaptability and small footprint. During operation, workers need to drive the workover rig to the workover site, move the telescopic arm and drill bit and other components at the tail of the workover rig to the top of the workover site, and when the telescopic arm is rotated and unfolded, but the height of the telescopic arm and the working platform still needs to be adjusted, a cylinder is usually used to drive the working platform up and down. When the working platform has a certain lifting stroke requirement, the cylinder body is relatively long. When the movable shaft of the cylinder is retracted, the working platform is still at a certain distance from the workover rig plate, resulting in the work platform and the telescopic arm not being able to move. There is room for lowering and adjustment, and the higher center of gravity caused by the higher working platform will also affect the stability of the well repair rig, and when the telescopic arm and the drill bit are not accurately aligned with the well repair site, workers are required to retract the hydraulic legs used to stably support the well repair rig, and operate the mobile well repair rig again to align the components on the well repair rig working platform with the well repair site, which is time-consuming and labor-intensive. The hydraulic legs of the well repair rig are usually arranged on both sides of the well repair rig, and the telescopic arm, drill bit and other components are all arranged at the tail of the well repair rig. When the telescopic arm is unfolded, the pressure on the top of the well repair rig is concentrated on the tail of the well repair rig, resulting in the risk of the well repair rig being lifted, posing a safety hazard.

[0004] To solve the above problems, the inventor proposed an oil pumping and workover rig. Summary of the invention

[0005] In order to solve the above technical problems, a pumping well repairing machine is provided.

[0006] To achieve the above objectives, the present invention can be implemented by the following technical solutions:

[0007] The present invention provides an oil pumping workover rig, comprising: a vehicle plate, a lifting assembly being arranged on the top of the vehicle plate;

[0008] The lifting assembly includes a base plate arranged directly above the vehicle plate, a working platform is arranged directly above the base plate, a well repairing machine arm is arranged on the top of the working platform, four fixing piles are fixedly installed on the top of the base plate, the top ends of the four fixing piles pass through the working platform, four fixing seats are fixedly installed on the bottom of the fixing piles, the four fixing seats respectively form limiting cooperation with the four fixing piles, four oil cylinders are fixedly connected to the bottom of each of the fixing seats, and the bottom ends of the four oil cylinders are commonly fixedly connected to a lifting seat, four limiting sleeve rods are arranged between the fixing seat and the lifting seat, four pin shafts are respectively arranged on the sides of the four fixing seats and the four lifting seats, and pin holes are opened on the surfaces of the fixing piles.

[0009] Preferably, every four oil cylinders are equidistantly arranged at the bottom of the fixing seat, and every four limiting sleeve rods are equidistantly arranged at the bottom of the fixing seat.

[0010] Preferably, the pin holes form a group of four, and the pin holes in one group are equidistantly arranged on the surface of the fixing pile, and the four pin shafts are snap-fitted with the pin holes.

[0011] Preferably, a translation assembly is provided on the top of the vehicle plate, and the translation assembly includes a fixed frame 1 fixedly installed on the top of the vehicle plate, a sliding groove 1 is symmetrically opened on the inner wall of the fixed frame 1, a sliding seat 1 is slidably connected in the sliding groove 1, a driving plate 1 is fixedly connected to the bottom of the sliding seat 1, a cylinder 1 is fixedly installed on the top of the vehicle plate, the movable axis of the cylinder 1 is fixedly connected to the driving plate 1, a fixed frame 2 is fixedly connected to the top of the sliding seat 1, a sliding groove 2 is symmetrically opened on the inner wall of the fixed frame 2, the bottom plate is slidably connected in the sliding groove 2, the bottom of the bottom plate is fixedly connected to the driving plate 2, a cylinder 2 is fixedly installed on the top of the sliding seat 1, and the movable axis of the cylinder 2 is fixedly connected to the driving plate 2.

[0012] Preferably, the two sliding grooves 1 are formed on the inner wall of the fixed frame 1 which is parallel to the long side of the bottom plate, and the two sliding grooves 2 are formed on the inner wall of the fixed frame 2 which is parallel to the short side of the bottom plate.

[0013] Preferably, a tail support assembly is provided at the bottom of the vehicle plate, and the tail support assembly includes a fixed frame fixedly installed at the bottom of the vehicle plate, the fixed frames are grouped into two, and there are two groups in total. A rotating shaft is rotatably connected inside the four fixed frames, and the bottoms of the two groups of fixed frames are rotatably connected to rotating frames. The rotating frames are grouped into two, and the bottoms of the two groups of rotating frames are commonly fixedly connected to a support seat, both ends of the rotating shaft are fixedly connected to disc one, the tops of the two rotating frames are fixedly connected to disc two, and both sides of the two disc one are rotatably connected to connecting rods, the connecting rods are grouped into two, and one end of the connecting rod in one group away from disc one is rotatably connected to disc two.

[0014] Preferably, the rotating frame is an equilateral triangle, the second disk is located at the top corner of the rotating frame, and the support seat is located at the bottom corner of the rotating frame.

[0015] Preferably, the two disks 1 are respectively located between two groups of fixing frames, and a group of connecting rods are respectively located on both sides of disk 1 and disk 2.

[0016] Preferably, a sliding groove three is opened on the vehicle plate, a cylinder three is fixedly installed and connected on the side of the sliding groove three away from the fixed frame, a rack is slidably connected in the sliding groove three, a gear is fixedly connected to the surface of the rotating shaft, and the rack is meshingly connected to the gear.

[0017] Preferably, a displacement sensor is provided on the inner wall of the fixed frame 1.

[0018] As described above, the characteristics and advantages of a pumping well repairing rig in the present invention are:

[0019] By setting the fixed pile and the pin shaft, the oil cylinder pushes the fixed seat to slide upward on the surface of the fixed pile, thereby pushing the working platform to slide upward. When the fixed seat slides until the pin shaft thereon is aligned with the pin hole again, the pin shaft on the fixed seat is clamped into the pin hole again, thereby fixing the fixed seat on the fixed pile, and the lifting effect of the working platform can be achieved, and then the height of the well repairing machine on the top of the working platform can be fine-tuned. There is no need to set a longer oil cylinder to raise the working platform, and the working platform can be raised to a higher or lower position on the fixed pile, which not only ensures that the working platform can be adjusted upward, but also when the well repairing machine moves, the working platform can be close to the well repairing machine car plate and will not be blocked by the long cylinder body, thereby avoiding the situation where the center of gravity is high when the working platform is high and the well repairing machine is unstable;

[0020] Through the setting of the cylinder 1, the cylinder 1 can drive the driving plate 1 to move, thereby driving the sliding seat 1 to slide in the sliding groove 1, and then driving the working platform to move horizontally through the fixed frame 2, the sliding groove 2, the bottom plate and the fixed piles, so that the working platform can be fine-tuned after the well repair rig is propped up and fixed, so that it is close to or away from the well repair site, thereby driving the telescopic arm and the drill bit to be close to or away from the well repair site, which is convenient for coping with the situation where the distance between the well repair rig and the well repair site needs to be adjusted during the well repair process. Compared with the operation of moving the well repair rig, there is no need to retract the hydraulic legs on the side of the well repair rig and move the well repair rig, which saves time and effort;

[0021] Through the setting of the second cylinder, the second cylinder drives the bottom plate to move through the second driving plate, so that the bottom plate slides in the second sliding groove, and then drives the working platform to move in the horizontal direction through the fixed pile, so as to achieve fine adjustment of the position of the working platform, avoid the situation that the workover rig is difficult to align with the workover position due to insufficient precision when reversing, and avoid the situation that the workover rig still needs to adjust its position after the hydraulic legs are opened and propped up, which saves time and effort, and at the same time can improve the accuracy of the drill bit on the working platform, so as to cope with the situation that the drill bit needs to be moved during the workover process;

[0022] When the driving mechanism is in a state of being shaken, the driving mechanism is in a state of being lifted up and the driving mechanism is in a state of being lifted up, so that the driving mechanism can be lifted up and the driving mechanism can be in a state of being ... BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure shown in the present invention;

[0024] Figure 2 The present invention shows Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 It is a three-dimensional schematic diagram of the fixed pile structure shown in the present invention;

[0026] Figure 4 It is a three-dimensional schematic diagram of a fixed frame structure shown in the present invention;

[0027] Figure 5 The present invention shows Figure 4 Enlarged view of point B in the middle;

[0028] Figure 6 It is a three-dimensional schematic diagram of the second structure of the fixed frame shown in the present invention;

[0029] Figure 7 The present invention shows Figure 6 Enlarged view of point C in the middle;

[0030] Figure 8It is a three-dimensional schematic diagram of the bottom structure of the vehicle panel shown in the present invention;

[0031] Fig. 9 It is a cross-sectional perspective schematic diagram of the internal structure of the vehicle panel shown in the present invention;

[0032] Fig.10 It is a three-dimensional schematic diagram of the connecting rod structure shown in the present invention.

[0033] The reference numerals in the drawings of the present invention are: 1, vehicle plate; 3, workover rig arm;

[0034] Lifting components: 201, bottom plate; 202, working platform; 203, fixed pile; 204, fixed seat; 205, oil cylinder; 206, lifting seat; 207, limit sleeve rod; 208, pin shaft; 209, pin hole;

[0035] Translation assembly: 401, fixed frame 1; 402, sliding slot 1; 403, sliding seat 1; 404, driving plate 1; 405, cylinder 1; 406, fixed frame 2; 407, sliding slot 2; 408, driving plate 2; 409, cylinder 2;

[0036] Tail support assembly: 501, fixed frame; 502, rotating shaft; 503, rotating frame; 504, supporting seat; 505, disc one; 506, disc two; 507, connecting rod; 508, sliding groove three; 509, cylinder three; 510, rack; 511, gear; 512, displacement sensor. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] See 1~ Fig.10 As shown, an embodiment of the present invention is provided, and a pumping well servicing rig provided will be described in detail below:

[0039] A pumping well repairing machine, such as Figure 1 to Figure 6 As shown, it comprises: a vehicle plate 1, and a lifting assembly is arranged on the top of the vehicle plate 1;

[0040] The lifting assembly includes a bottom plate 201 arranged directly above the vehicle plate 1, a working platform 202 is arranged directly above the bottom plate 201, a workover rig arm 3 is arranged on the top of the working platform 202, four fixed piles 203 are fixedly installed on the top of the bottom plate 201, the tops of the four fixed piles 203 pass through the working platform 202, four fixed seats 204 corresponding to the positions of the fixed piles 203 are fixedly installed on the bottom of the fixed piles 203, the four fixed seats 204 are respectively limited with the four fixed piles 203, and the bottom of each fixed seat 204 is fixedly connected to four oil cylinders 205, and each of the four oil cylinders 205 is equidistantly arranged on the fixed At the bottom of the seat 204, the bottom ends of the four oil cylinders 205 are fixedly connected with a lifting seat 206. Four limiting sleeve rods 207 are arranged between the fixed seat 204 and the lifting seat 206. Every four limiting sleeve rods 207 are equidistantly arranged at the bottom of the fixed seat 204. Four pin shafts 208 are respectively arranged on the sides of the four fixed seats 204 and the four lifting seats 206. The pin shafts 208 are retracted and extended by hydraulic drive. Pin holes 209 are opened on the surface of the fixed pile 203. Four pin holes 209 form a group. One group of pin holes 209 is equidistantly arranged on the surface of the fixed pile 203. The four pin shafts 208 and the pin holes 209 form a snap fit.

[0041] Further, such as Figure 1 , Figures 4 to 7 As shown, a translation assembly is provided on the top of the vehicle plate 1, and the translation assembly includes a fixed frame 401 fixedly installed on the top of the vehicle plate 1, and the inner wall of the fixed frame 401 is symmetrically provided with sliding grooves 402, and two sliding grooves 402 are provided on the inner wall of the fixed frame 401 parallel to the long side of the bottom plate 201, and a sliding seat 403 is slidably connected in the two sliding grooves 402, and a driving plate 404 is fixedly connected to the bottom of the sliding seat 403, and a cylinder 405 is fixedly installed on the top of the vehicle plate 1, and the movable shaft of the cylinder 405 is connected to the bottom of the driving plate 404. The driving plate 404 is fixedly connected, the top of the sliding seat 403 is fixedly connected to the fixed frame 406, the inner wall of the fixed frame 406 is symmetrically provided with sliding grooves 407, the two sliding grooves 407 are provided on the inner wall of the fixed frame 406 which is parallel to the short side of the bottom plate 201, the bottom plate 201 is slidably connected in the sliding grooves 407, the bottom of the bottom plate 201 is fixedly connected to the driving plate 408, the top of the sliding seat 403 is fixedly installed with a cylinder 409, and the movable shaft of the cylinder 409 is fixedly connected to the driving plate 408.

[0042] Further, such as Figure 1 , Figure 8 to Figure 10As shown, a tail support assembly is provided at the bottom of the vehicle plate 1, and the tail support assembly includes a fixed frame 501 fixedly installed at the bottom of the vehicle plate 1, two fixed frames 501 form a group, and there are two groups in total. A rotating shaft 502 is rotatably connected inside the four fixed frames 501, and the bottoms of the two groups of fixed frames 501 are rotatably connected to a rotating frame 503. The rotating frame 503 is an equilateral triangle, and two rotating frames 503 form a group. The bottoms of the two groups of rotating frames 503 are commonly fixedly connected to a support seat 504, and the support seat 504 is located at the bottom corner of the rotating frame 503, and both ends of the rotating shaft 502 are fixedly connected to a disk 1 505, and the tops of the two rotating frames 503 are fixedly connected to a disk 2 506, and the disk 2 506 is located at the top corner of the rotating frame 503. Both sides of the two disks 1 505 are rotatably connected to connecting rods 507, and the two ends of the connecting rod 507 are The two disks 505 are respectively located between the two sets of fixed frames 501, and a set of connecting rods 507 are respectively located on both sides of disk 1 505 and disk 2 506. A sliding groove 3 508 is provided on the vehicle plate 1, and the sliding groove 3 508 is located just above the middle of the rotating shaft 502. A cylinder 3 509 is fixedly installed and connected to the side of the sliding groove 3 508 away from the fixed frame 501, and a rack 510 is slidably connected in the sliding groove 3 508. The movable shaft of the cylinder 3 509 is fixedly connected to the rack 510, and a gear 511 is fixedly connected to the surface of the rotating shaft 502. The gear 511 is located in the middle of the rotating shaft 502, and the rack 510 is meshed with the gear 511. A displacement sensor 512 is provided on the inner wall of the fixed frame 1 401.

[0043] In combination with the above embodiments, the entire working process and working principle of the above embodiments are as follows:

[0044] The initial state is:

[0045] The bottom surface of the lifting seat 206 is in contact with the bottom plate 201, the movable end of the oil cylinder 205 is not extended, and the pin 208 is inserted into the pin hole 209, so that the fixed seat 204 and the lifting seat 206 are fixed relative to the fixed pile 203, the movable axis of the cylinder 1 405 is contracted, and the side of the sliding seat 1 403 close to the fixed frame 501 is in contact with the inner wall of the sliding groove 1 402, the movable axis of the cylinder 2 409 is not extended, the middle part of the bottom plate 201 is aligned with the middle part of the sliding groove 2 407, and the initial cylinder 3 509 is in an extended state, the rack 510 is located on the side of the sliding groove 3 508 away from the front of the vehicle, the connection between the connecting rod 507 and the disc 1 505 is located directly below the rotating shaft 502, the connection between the connecting rod 507 and the disc 2 506 is located on the side of the disc 2 506 away from the fixed frame 501, and the bottom surface of the support seat 504 is in contact with the ground.

[0046] The working status is:

[0047] Raise the workover rig:

[0048] When the height of the working platform 202 needs to be fine-tuned during well repair, the pin shaft 208 on the lifting seat 206 slides out of the pin hole 209 under the action of hydraulic pressure, so that the lifting seat 206 can slide on the surface of the fixed pile 203, and then the movable shaft of the oil cylinder 205 contracts, so that the lifting seat 206 slides upward on the surface of the fixed pile 203. When the lifting seat 206 rises until the pin shaft 208 thereon is aligned with the pin hole 209 again, the pin shaft 208 on the lifting seat 206 is again inserted into the pin hole 209, so that the lifting seat 206 is fixed. Then the pin shaft 208 on the fixed seat 204 slides out of the pin hole 209, and at this time the oil cylinder 205 extends. Under the action that the lifting seat 206 is fixed on the surface of the fixed pile 203 by the pin shaft 208, the oil cylinder 205 extends, so that the bottom end of the oil cylinder 205 is under the reaction force of the lifting seat 206. The top of the fixing seat 204 pushes the fixing seat 204 to slide upward on the surface of the fixing pile 203, thereby pushing the working platform 202 to slide upward. When the fixing seat 204 slides until the pin shaft 208 thereon is aligned with the pin hole 209 again, the pin shaft 208 on the fixing seat 204 is again inserted into the pin hole 209, thereby fixing the fixing seat 204 on the fixing pile 203, and the lifting effect of the working platform 202 can be achieved, and then the height of the telescopic arm at the top of the working platform 202 can be fine-tuned, thereby avoiding the situation where the accuracy is difficult to ensure after the telescopic arm is rotated and adjusted. Under the action of four smaller oil cylinders 205, compared with the cylinder lifting in the prior art, there is no need to set a longer oil cylinder 205 to lift the working platform 202, and the working platform 202 can be lifted to a higher or lower position on the fixing pile 203 without being blocked by the long cylinder body.

[0049] Adjust the spacing between workover rigs:

[0050] When the position of the working platform 202 needs to be adjusted after the workover rig has been raised by the hydraulic legs, the cylinder 405 can be started to drive the driving plate 404 to move, thereby driving the sliding seat 403 to slide in the sliding groove 402, and then driving the working platform 202 to move horizontally through the fixed frame 406, the sliding groove 407, the bottom plate 201 and the fixed piles 203, so that the working platform 202 can be fine-tuned after the workover rig is propped up and fixed, so that it is close to or away from the workover site, which is convenient for dealing with the situation where the distance between the workover rig and the workover site needs to be adjusted during the workover process. Compared with the operation of moving the workover rig, there is no need to retract the hydraulic legs on the side of the workover rig and move the workover rig, which saves time and effort.

[0051] Horizontal mobile workover rig:

[0052] After the workover rig is fixed by the hydraulic legs, when the workover rig needs to be translated and adjusted relative to the workover site, the cylinder 2 409 can be started, so that the cylinder 2 409 drives the bottom plate 201 to move through the drive plate 2 408, so that the bottom plate 201 slides in the sliding groove 2 407, and then drives the working platform 202 to move in the horizontal direction through the fixed piles 203, so as to achieve fine adjustment of the position of the working platform 202, avoid the situation that the workover rig is difficult to align with the workover site due to insufficient precision when reversing, and avoid the situation that the workover rig still needs to adjust its position after the hydraulic legs are opened and propped up, thus saving time and effort, and at the same time improving the accuracy of the drill bit on the working platform 202, so as to cope with the situation that the drill bit needs to be moved during the workover process.

[0053] Automatically retract the tail support:

[0054] When the movable shaft of the cylinder 1 405 extends, the sliding seat 1 403 slides in the direction away from the fixed frame 501 under the action of the driving plate 1 404, and the sliding seat 1 403 gradually moves away from the displacement sensor 512. At this time, the displacement sensor 512 transmits a signal to the controller, and the controller causes the cylinder 3 509 to contract and drive the rack 510 to slide in the sliding groove 3 508 to the side away from the fixed frame 501. The rack 510 drives the gear 511 to move in meshing action. Fig. 9 The middle state rotates counterclockwise, thereby driving the rotating shaft 502 to rotate counterclockwise, and then driving the two disks 505 on the surface of the rotating shaft 502 to rotate counterclockwise. Fig.10 The middle state rotates counterclockwise, so that the disc 1 505 drives the top end of the connecting rod 507 to rotate counterclockwise, so that the bottom end of the connecting rod 507 pulls the disc 2 506, so that the disc 2 506 pulls the rotating frame 503, and then the rotating frame 503 rotates counterclockwise with the connection with the fixed frame 501 as the center, thereby driving the support seat 504 to move upward and away from the ground, so as to achieve the effect that when the cylinder 1 405 is started to make the working platform 202 away from the fixed frame 501, the support seat 504 is automatically retracted, so that when the bottom plate 201 is located on the side away from the tail of the well repairing rig in the sliding groove 1 402 and the center of gravity of the well repairing rig returns to the middle, the tail support is automatically retracted, and then when the center of gravity is close to the middle of the well repairing rig and the front of the vehicle has no support, the tail support is cancelled, so as not to affect the balance of the well repairing rig.

[0055] Automatic opening of tail support:

[0056] When the movable shaft of the cylinder 1 405 contracts, the driving plate 1 404 drives the sliding seat 1 403 to slide toward the direction close to the fixed frame 501, and the sliding seat 1 403 drives the working platform 202 to slide toward the tail of the well repair rig through the fixed frame 2 406, the sliding groove 2 407, the bottom plate 201, and the fixed pile 203. At this time, the pressure at the tail of the well repair rig increases, and the sliding seat 1 403 moves toward the tail of the well repair rig. The sliding seat 1 403 will gradually approach the displacement sensor 512, so that the cylinder 3 509 is opened to push the rack 510 to slide toward the side of the sliding groove 3 508 close to the fixed frame 501, so that the rack 510 meshes with the gear 511 to Fig. 9 As shown, it rotates clockwise, thereby driving the rotating shaft 502 to rotate clockwise, so that the rotating shaft 502 drives the two discs 1 505 to rotate clockwise, thereby driving the top of the connecting rod 507 to rotate clockwise, so that the connecting rod 507 pushes the disc 2 506 at the bottom, so that the disc 2 506 pushes the rotating frame 503 to rotate clockwise with the connection between the rotating frame 503 and the fixed frame 501 as the center of the circle, so that the support seat 504 located at the bottom corner of the rotating frame 503 moves downward until the support seat 504 completely contacts the ground, achieving the effect of supporting the tail of the well repair rig, thereby achieving the movement of the working platform 202 toward the tail of the well repair rig, so that when the center of gravity moves to the tail of the well repair rig, the support seat 504 automatically opens immediately to support the well repair rig, avoiding the situation that the well repair rig may tilt under the action of gravity when the telescopic arm and the drill bit are working at the tail of the well repair rig, and further improving the stability and safety of the well repair rig during operation.

[0057] The above descriptions are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pumping and workover rig, characterized in that: include: A vehicle plate (1), wherein a lifting assembly is arranged on the top of the vehicle plate (1); The lifting assembly comprises a bottom plate (201) arranged directly above the vehicle plate (1); a working platform (202) is arranged directly above the bottom plate (201); a workover rig arm (3) is arranged on the top of the working platform (202); four fixing piles (203) are fixedly installed on the top of the bottom plate (201); the top ends of the four fixing piles (203) pass through the working platform (202); four fixing seats (204) are fixedly installed on the bottom of the fixing piles (203); the four fixing seats (204) are respectively The fixing seat (204) is provided with four oil cylinders (205) at the bottom, and the bottom ends of the four oil cylinders (205) are fixedly connected with a lifting seat (206). Four limiting sleeve rods (207) are arranged between the fixing seat (204) and the lifting seat (206). Four pin shafts (208) are arranged on the sides of the four fixing seats (204) and the four lifting seats (206). A pin hole (209) is provided on the surface of the fixing seat (203).

2. The oil well pumping rig according to claim 1, characterized in that: Every four of the oil cylinders (205) are equidistantly arranged at the bottom of the fixing seat (204), and every four of the limiting sleeve rods (207) are equidistantly arranged at the bottom of the fixing seat (204).

3. The oil pumping and workover rig according to claim 2, characterized in that: The pin holes (209) are grouped into four, and the pin holes (209) in one group are arranged at equal distances on the surface of the fixing pile (203), and the four pin shafts (208) are snap-fitted with the pin holes (209).

4. The oil well pumping rig according to claim 1, characterized in that: A translation assembly is provided on the top of the vehicle plate (1), and the translation assembly includes a fixed frame (401) fixedly mounted on the top of the vehicle plate (1), a sliding groove (402) is symmetrically provided on the inner wall of the fixed frame (401), a sliding seat (403) is slidably connected in the sliding groove (402), a driving plate (404) is fixedly connected to the bottom of the sliding seat (403), a cylinder (405) is fixedly mounted on the top of the vehicle plate (1), and a movable shaft of the cylinder (405) is connected to the driving plate The first sliding seat (403) is fixedly connected with a second fixed frame (406) at the top, and the second fixed frame (406) is symmetrically provided with a second sliding groove (407) on the inner wall, and the bottom plate (201) is slidably connected in the second sliding groove (407), and the bottom of the bottom plate (201) is fixedly connected with a second driving plate (408), and the top of the first sliding seat (403) is fixedly installed with a second cylinder (409), and the movable shaft of the second cylinder (409) is fixedly connected with the second driving plate (408).

5. The oil well pumping rig according to claim 4, characterized in that: The two sliding grooves 1 (402) are provided on the inner wall of the fixed frame 1 (401) parallel to the long side of the bottom plate (201), and the two sliding grooves 2 (407) are provided on the inner wall of the fixed frame 2 (406) parallel to the short side of the bottom plate (201).

6. The oil well pumping rig according to claim 1, characterized in that: The bottom of the vehicle plate (1) is provided with a tail support assembly, and the tail support assembly includes a fixing frame (501) fixedly mounted on the bottom of the vehicle plate (1), and the fixing frames (501) are grouped into two, with a total of two groups, and a rotating shaft (502) is rotatably connected inside the four fixing frames (501), and the bottoms of the two groups of fixing frames (501) are both rotatably connected to a rotating frame (503), and the rotating frames (503) are grouped into two, and the bottoms of the two groups of rotating frames (503) are The two rotating frames (503) are fixedly connected to a support seat (504), both ends of the rotating shaft (502) are fixedly connected to disk one (505), the tops of the two rotating frames (503) are fixedly connected to disk two (506), both sides of the two disks one (505) are rotatably connected to connecting rods (507), and two connecting rods (507) form a group, and one end of a group of connecting rods (507) away from disk one (505) is rotatably connected to disk two (506).

7. The oil well pumping rig according to claim 6, characterized in that: The rotating frame (503) is an equilateral triangle, the second disk (506) is located at the top corner of the rotating frame (503), and the support seat (504) is located at the bottom corner of the rotating frame (503).

8. The oil well pumping rig according to claim 7, characterized in that: The two disks 1 (505) are respectively located between the two sets of fixing frames (501), and a set of connecting rods (507) are respectively located on both sides of disk 1 (505) and disk 2 (506).

9. The oil pumping and workover rig according to claim 8, characterized in that: The vehicle plate (1) is provided with a sliding groove three (508), a side of the sliding groove three (508) away from the fixed frame (501) is fixedly installed with a cylinder three (509), a rack (510) is slidably connected in the sliding groove three (508), a movable shaft of the cylinder three (509) is fixedly connected to the rack (510), a gear (511) is fixedly connected to the surface of the rotating shaft (502), and the rack (510) is meshingly connected to the gear (511).

10. The oil well pumping rig according to claim 9, characterized in that: The inner wall of the fixed frame 1 (401) is provided with a displacement sensor (512).

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