Sucker rod positioning device

Abstract

The utility model relates to a sucker rod positioning device which is applied to the technical field of sucker rods and comprises a rack, a guide mechanism, two sliding blocks, a driving mechanism and a positioning block, the two sliding blocks are arranged at the top end of the rack in a sliding mode, the driving mechanism is used for driving the two sliding blocks to move face to face or back to back, the guide mechanism is arranged on the rack, and the positioning block is arranged on the guide mechanism. And the positioning block is used for guiding the bottom end of the sucker rod and is arranged on the top surface of a sliding block. When the sucker rod positioning device is used, a sucker rod is inserted between the two sliding blocks, the top end of the sucker rod is clamped on the positioning block, the sucker rod is guided through the guiding mechanism, the driving mechanism drives the two sliding blocks to move oppositely till the sucker rod is clamped, and positioning of the sucker rod is completed; only the positioning blocks with different heights need to be replaced, the whole positioning device does not need to be replaced, rapidness and convenience are achieved, and working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of sucker rods, and in particular to a sucker rod positioning device. Background Art

[0002] The rod pumping method is one of the traditional oil production methods in the world's oil industry, and it is also the artificial lifting method that has been dominant in oil production projects so far. According to statistics in the 1990s, the number of mechanical oil wells in the world has accounted for more than 90% of the total number of oil wells, of which 80% to 85% are rod pumping wells. This shows that the rod pumping method has occupied a major position in crude oil production around the world.

[0003] The sucker rod is connected to the bare rod on the top and the oil pump on the bottom, which plays the role of transmitting power. During the use of the sucker rod, the horizontal height and horizontal position of the sucker rod are positioned by the sucker rod positioning device. The sucker rod positioning devices in the prior art can only adapt to the diameter and height of the sucker rod of a single specification. When performing well repair operations, it is necessary to carry positioning devices of multiple specifications at one time. During the operation, adaptive replacement is performed according to the specifications of the sucker rod, which is very inconvenient and has low work efficiency.

[0004] In view of this, there is an urgent need for a sucker rod positioning device to solve the above problems. Summary of the invention

[0005] In order to help solve the problems existing in the prior art, the present application provides a sucker rod positioning device, which adopts the following technical solution: it includes: a frame, a guide mechanism, two sliders, a driving mechanism and a positioning block, the two sliders are slidably arranged at the top of the frame, the driving mechanism is used to drive the two sliders to move toward or away from each other, the guide mechanism is arranged on the frame, and is used to guide the bottom end of the sucker rod, and the positioning block is arranged on the top surface of a slider.

[0006] Through the above technical solution, when in use, the sucker rod is inserted between the two sliders, the top end of the sucker rod is clamped on the positioning block, and the sucker rod is guided by the guide mechanism. The driving mechanism drives the two sliders to move toward each other until the sucker rod is clamped, thereby completing the positioning of the sucker rod. When it is necessary to position sucker rods of different specifications, it is only necessary to replace positioning blocks of different heights without replacing the entire positioning device. This is quick and convenient, and improves work efficiency.

[0007] In a specific feasible implementation scheme, the driving mechanism includes a synchronization plate, two connecting rod assemblies respectively arranged on both sides of the frame, and a driving assembly for driving the synchronization plate to perform lifting and lowering movements. The connecting rod assembly includes two connecting rods, and the top ends of the two connecting rods are respectively rotatably connected to one side of two sliders. Connecting shafts are arranged on both sides of the synchronization plate, and the connecting rods are rotatably connected to the corresponding connecting shafts.

[0008] Through the above technical solution, the driving assembly is used to drive the synchronous plate to perform lifting movement, so that the angle between the two connecting rods of the same connecting rod assembly changes, and the two sliders move synchronously toward or away from each other on the frame.

[0009] In a specific possible implementation scheme, the driving assembly includes a cylinder, the cylinder is arranged on a frame, and the output end of the cylinder is connected to a synchronization plate.

[0010] Through the above technical solution, the oil cylinder is used to output power to drive the synchronous plate to perform lifting movement.

[0011] In a specific possible implementation mode, two parallel slide rails are provided at the top of the frame, and the two sliding blocks are slidably arranged on the two slide rails.

[0012] Through the above technical solution, two parallel slide rails are arranged to guide the movement of the two sliders.

[0013] In a specific possible implementation scheme, the guide mechanism includes a mounting ring and a plurality of guide components arranged on the ring side of the mounting ring, the mounting ring is arranged on the frame, the guide component includes a mounting box, a slide plate and a first elastic member, the mounting box is arranged on the ring side of the mounting ring, one end of the slide plate is slidably arranged in the mounting box, the other end of the slide plate extends to the inner cavity of the mounting ring, and the elastic member is arranged between the slide plate and the mounting box;

[0014] A guiding slope is arranged at one end of the slide away from the installation box.

[0015] Through the above technical solution, multiple slide plates that extend the radial movement of the mounting ring are used. When the sucker rod is inserted into the mounting ring from above, it contacts the guiding inclined surface, causing the multiple slide plates to move away from the axis of the mounting ring until the sucker rod is inserted between the multiple slide plates, thereby completing the guidance of the sucker rod.

[0016] In a specific implementation manner, the first elastic member is a plurality of first springs, and the plurality of first springs are arranged at one end of the slide plate close to the installation box.

[0017] Through the above technical solution, a plurality of first springs are used to provide the slide plate with elastic force toward the axis of the mounting ring, so as to ensure that the sucker rod is coaxial with the mounting ring.

[0018] In a specific possible implementation manner, the inner side of the top end of the mounting ring is trumpet-shaped.

[0019] Through the above technical solution, a trumpet-shaped opening is adopted to facilitate the insertion of the sucker rod.

[0020] In a specific feasible implementation scheme, a plurality of support components are provided at the bottom end of the frame, and the support components include a mounting sleeve, a sliding rod and a second elastic member. The mounting sleeve is provided at the bottom end of the frame, the top end of the sliding rod is slidably provided in the mounting sleeve, and the second elastic member is provided in the mounting sleeve.

[0021] Through the above technical solution, multiple support components are arranged, and when the device is placed, multiple slide bars are telescoped in the installation sleeve to provide buffering.

[0022] In a specific implementation manner, the second elastic member is a second spring.

[0023] Through the above technical solution, the second spring is used to provide a buffer force for the slide rod.

[0024] In a specific possible implementation manner, a plurality of hanging rings are provided on the frame.

[0025] Through the above technical solution, multiple hanging rings are provided to facilitate the movement of the device.

[0026] To sum up, when in use, the sucker rod is inserted between the two sliders, the top end of the sucker rod is clamped on the positioning block, and the sucker rod is guided by the guide mechanism, and the driving mechanism drives the two sliders to move toward each other until the sucker rod is clamped, thereby completing the positioning of the sucker rod. When it is necessary to position sucker rods of different specifications, it is only necessary to replace the positioning blocks of different heights without replacing the entire positioning device. This is quick and convenient, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0028] Figure 2 is a cross-sectional view of the overall structure of an embodiment of the present application;

[0029] Figure 3 It is a structural schematic diagram of the guide mechanism in the embodiment of the present application.

[0030] Figure numerals: 1. frame; 2. guide mechanism; 21. mounting ring; 22. mounting box; 23. slide plate; 24. first spring; 3. slide block; 4. driving mechanism; 41. synchronization plate; 42. connecting rod; 43. cylinder; 5. positioning block; 6. slide rail; 7. support assembly; 71. mounting sleeve; 72. slide rod; 73. second spring; 8. hanging ring. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0032] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0033] The following is combined with Figure 1-3 This application is further described in detail.

[0034] Reference Figure 1 and 2 The two sliders 3 are slidably arranged at the top of the frame 1, and the driving mechanism 4 is used to drive the two sliders 3 to move toward or away from each other. The guiding mechanism 2 is arranged on the frame 1 to guide the bottom end of the sucker rod. The positioning block 5 is arranged on the top surface of a slider 3. The positioning block 5 is installed on the slider 3 through a quick-release structure (for example, a positioning pin plus a hand-tightening bolt connection, etc.). In this way, when in use, the sucker rod is inserted between the two sliders 3, the top end of the sucker rod is clamped on the positioning block 5, and the sucker rod is guided by the guiding mechanism 2. The driving mechanism 4 drives the two sliders 3 to move toward each other until the sucker rod is clamped, thereby completing the positioning of the sucker rod. When it is necessary to position sucker rods of different specifications, it is only necessary to replace the positioning blocks 5 of different heights, without replacing the entire positioning device. It is quick and convenient, and improves work efficiency.

[0035] Reference Figure 1The driving mechanism 4 includes a synchronous plate 41, two connecting rod assemblies respectively arranged on both sides of the frame 1, and a driving assembly for driving the synchronous plate 41 to perform lifting motion. The driving assembly includes a cylinder 43, which is arranged on the frame 1. The output end of the cylinder 43 is connected to the synchronous plate 41. The connecting rod assembly includes two connecting rods 42. The top ends of the two connecting rods 42 are respectively rotatably connected to one side of the two sliders 3. Connecting shafts are arranged on both sides of the synchronous plate 41. The connecting rod bottom ends 42 of the two connecting rod assemblies are respectively rotatably connected to the corresponding connecting shafts. In this way, the synchronous plate 41 is driven to perform lifting motion by the cylinder 43, so that the angle between the two connecting rods of the same connecting rod assembly changes, so that the two sliders 3 move synchronously toward or away from each other on the frame 1.

[0036] Reference Figure 1 and 2 Two parallel slide rails 6 are arranged at the top of the frame 1 , and the two sliders 3 are slidably arranged on the two slide rails 6 . Thus, the arrangement of the two parallel slide rails 6 is used to guide the movement of the two sliders 3 .

[0037] Reference Figure 2 and 3 The guide mechanism 2 includes a mounting ring 21 and a plurality of guide components arranged on the side of the mounting ring 21. The mounting ring 21 is arranged on the frame 1. The guide components include a mounting box 22, a slide plate 23 and a first elastic member. The mounting box 22 is arranged on the side of the mounting ring 21. One end of the slide plate 23 is slidably arranged in the mounting box 22. The other end of the slide plate 23 extends to the inner cavity of the mounting ring 21. The first elastic member is a plurality of first springs 24. The plurality of first springs 24 are arranged on one end of the slide plate 23 close to the mounting box 22; the end of the slide plate 23 away from the mounting box 22 is arranged There is a guiding bevel, and the inner side of the top of the mounting ring 21 is trumpet-shaped. In this way, multiple slide plates 23 that extend radially from the mounting ring 21 are used. When the sucker rod is inserted into the mounting ring 21 from above, it contacts the guiding bevel, causing the multiple slide plates 23 to move away from the axis of the mounting ring 21. Multiple first springs 24 provide the slide plates 23 with a thrust toward the axis of the mounting ring 21 to ensure that the sucker rod is coaxial with the mounting ring 21 until the sucker rod is inserted between the multiple slide plates 23. The guidance of the sucker rod is completed. The trumpet-shaped opening and the guiding bevel are used to facilitate the insertion of the sucker rod.

[0038] Reference Figure 1 and 2 A plurality of support assemblies 7 are provided at the bottom end of the frame 1, and the support assemblies 7 include a mounting sleeve 71, a slide rod 72 and a second elastic member. The mounting sleeve 71 is provided at the bottom end of the frame 1, and the top end of the slide rod 72 is slidably provided in the mounting sleeve 71, and the second elastic member is provided in the mounting sleeve 71, and the second elastic member is a second spring 73. In this way, when the plurality of support assemblies 7 are provided, when the device is placed, the plurality of slide rods 72 are telescoped in the mounting sleeve 71, so as to play a buffering role.

[0039] Reference Figure 1 A plurality of hanging rings 8 are provided on the frame 1, so that the device can be lifted and moved conveniently through the holes on the hanging rings 8.

[0040] In summary: when in use, the sucker rod is inserted between the two sliders 3, the top end of the sucker rod is clamped on the positioning block 5, and the sucker rod is guided by the guide mechanism 2, and the driving mechanism 4 drives the two sliders 3 to move toward each other until the sucker rod is clamped, thereby completing the positioning of the sucker rod. When it is necessary to position sucker rods of different specifications, it is only necessary to replace the positioning blocks 5 of different heights without replacing the entire positioning device. This is quick and convenient, and improves work efficiency.

[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A sucker rod positioning device, characterized in that: include: A frame (1), a guide mechanism (2), two sliders (3), a driving mechanism (4) and a positioning block (5), wherein the two sliders (3) are slidably arranged at the top of the frame (1), the driving mechanism (4) is used to drive the two sliders (3) to move towards or away from each other, the guide mechanism (2) is arranged on the frame (1) and is used to guide the bottom end of the sucker rod, and the positioning block (5) is arranged on the top surface of one slider (3).

2. A sucker rod positioning device according to claim 1, characterized in that: The driving mechanism (4) comprises a synchronous plate (41), two connecting rod assemblies respectively arranged on both sides of the frame (1), and a driving assembly for driving the synchronous plate (41) to perform lifting and lowering movements, the connecting rod assembly comprising two connecting rods (42), the top ends of the two connecting rods (42) being rotatably connected to one side of two sliders (3), the two sides of the synchronous plate (41) are respectively provided with connecting shafts, and the connecting rods (42) are rotatably connected to the corresponding connecting shafts.

3. A sucker rod positioning device according to claim 2, characterized in that: The driving assembly comprises an oil cylinder (43), the oil cylinder (43) is arranged on the frame (1), and the output end of the oil cylinder (43) is connected to the synchronization plate (41).

4. A sucker rod positioning device according to claim 1, characterized in that: Two parallel slide rails (6) are arranged at the top of the frame (1), and the two slide blocks (3) are slidably arranged on the two slide rails (6).

5. A sucker rod positioning device according to claim 4, characterized in that: The guide mechanism (2) comprises a mounting ring (21) and a plurality of guide components arranged on the ring side of the mounting ring (21); the mounting ring (21) is arranged on the frame (1); the guide components comprise a mounting box (22), a slide plate (23) and a first elastic member; the mounting box (22) is arranged on the ring side of the mounting ring (21); one end of the slide plate (23) is slidably arranged in the mounting box (22); the other end of the slide plate (23) extends to the inner cavity of the mounting ring (21); and the elastic member is arranged between the slide plate (23) and the mounting box (22); One end of the slide plate (23) away from the installation box (22) is provided with a guiding slope.

6. A sucker rod positioning device according to claim 5, characterized in that: The first elastic member is a plurality of first springs (24), and the plurality of first springs (24) are arranged on one end of the slide plate (23) close to the installation box (22).

7. The sucker rod positioning device according to claim 5, characterized in that: The inner side of the top end of the mounting ring (21) is trumpet-shaped.

8. The sucker rod positioning device according to claim 1, characterized in that: A plurality of support components (7) are arranged at the bottom end of the frame (1), and the support components (7) include a mounting sleeve (71), a sliding rod (72) and a second elastic member. The mounting sleeve (71) is arranged at the bottom end of the frame (1), the top end of the sliding rod (72) is slidably arranged in the mounting sleeve (71), and the second elastic member is arranged in the mounting sleeve (71).

9. A sucker rod positioning device according to claim 8, characterized in that: The second elastic member is a second spring (73).

10. The sucker rod positioning device according to claim 1, characterized in that: The frame (1) is provided with a plurality of hanging rings (8).

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