Sucker rod end run-out detection device

Abstract

The utility model relates to a sucker rod end run-out detection device, which belongs to the technical field of sucker rod detection, and comprises a fixed part, a balance part and a detection part, the fixed part comprises a fixed seat, one end of the fixed seat is provided with a fixed support, the upper end of the fixed support is fixedly connected with a movable support, and the movable support comprises a vertical plate and a transverse plate. The balance component comprises two end covers, the two end covers are fixedly connected to the two sides of the lower portion of the transverse plate respectively, bearings are arranged in the two end covers respectively, a rotating shaft is rotationally connected between the two bearings, two balance beams are rotationally connected to the rotating shaft, the ends, close to the fixing support, of the balance beams are bent upwards, and the detection component is arranged at the other ends of the balance beams. The sucker rod breaking and falling accident caused by connection failure can be prevented, end jumping out-of-tolerance pieces are removed through sucker rod end jumping on-line detection, the failure rate of an oil pumping system is reduced from the source, the service life of equipment is prolonged by more than 30%, and the method is a key measure for guaranteeing safe operation of the oil pumping system and prolonging the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to a detection device, specifically, a sucker rod end runout detection device, belonging to the field of sucker rod detection technology. Background Technology

[0002] Currently, the production standard for sucker rods requires that the runout at the end of the rod meet certain requirements. Standards such as API also have strict requirements for controlling the runout at the end of the sucker rod. Excessive runout at the end of the sucker rod can lead to the following problems: 1. Uneven thread engagement and unbalanced preload distribution, easily causing thread loosening, stripping, or seal failure; 2. Disruption of rod string coaxiality, causing the sucker rod to deviate within the wellbore, exacerbating mechanical wear with the tubing. Simultaneously, eccentric movement may induce lateral vibration, leading to increased polished rod vibration, accelerating packing seal wear, and causing wellhead leakage; 3. Localized stress concentration, accelerating fatigue crack initiation under alternating loads. Statistics show that 80% of sucker rod fractures occur in the end joint transition zone. Therefore, sucker rod end runout detection is particularly necessary. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the above-mentioned traditional technologies and provide a sucker rod end runout detection device, which can prevent sucker rod breakage accidents caused by connection failure. By detecting sucker rod end runout online, it can eliminate parts with excessive end runout, reduce the failure rate of the oil pumping system from the source, and extend the equipment life by more than 30%. It is a key measure to ensure the safe operation of the oil pumping system and extend the equipment life.

[0004] The purpose of this utility model is achieved through the following technical measures: a sucker rod end runout detection device, comprising a fixing component, a balancing component, and a detection component. The fixing component includes a fixing seat, one end of which is provided with a fixing bracket. A movable bracket is fixedly connected to the upper end of the fixing bracket. The movable bracket includes a vertical plate and a horizontal plate. The balancing component includes two end caps, which are respectively fixedly connected to the lower sides of the horizontal plate. Bearings are provided inside the two end caps. A rotating shaft is rotatably connected between the two bearings. Two balancing beams are rotatably connected to the rotating shaft. The end of the balancing beam closest to the fixing bracket is bent upwards. The detection component is located at the other end of the balancing beam.

[0005] As a further improvement to the above technical solution:

[0006] The vertical plate and the horizontal plate are vertically fixedly connected. The vertical plate is provided with positioning holes for bolts to pass through, and the fixed bracket is provided with strip holes for bolts to pass through.

[0007] Both balance beams are set perpendicular to the rotation axis. The balance beams have annular parts through which the rotation axis passes. The balance beams and the rotation axis are fixed by spot welding at the joint.

[0008] The bearing has a retaining ring for the hole on its outer periphery and a retaining ring for the shaft on its outer side.

[0009] The detection component includes a detection panel, a dial indicator, and a fixed column, with the dial indicator fixedly connected to the fixed column.

[0010] The lower end of the fixed column is provided with a certain length of thread, and the horizontal plate is provided with threaded holes, and the fixed column is threadedly connected to the horizontal plate.

[0011] The lower end of the fixed column is equipped with a locking nut.

[0012] The two ends of the detection panel are bent upwards to form obtuse angles of 150°.

[0013] The detection panel is fixedly connected to the end of the two balance beams away from the fixed bracket, and the detection panel is positioned below the dial gauge.

[0014] The other end of the fixed base is provided with a material support frame.

[0015] Due to the adoption of the above technical solution, the advantages of this utility model compared with the prior art are as follows: During measurement, the sucker rod to be measured is placed on the support frame, and the shoulder of the sucker rod end is placed directly below the detection panel, ensuring that the distance between the support of the sucker rod to be measured and the shoulder of the sucker rod end is 152.4mm. First, adjust the contact of the dial indicator to contact the upper surface of the detection panel, rotate the sucker rod to be measured so that the shoulder of the sucker rod end rotates accordingly, causing the detection panel to jump up and down, causing the contact of the dial indicator to move as well, thereby measuring the maximum value of the jump. In this way, the jump value of the entire shoulder is measured, making the measurement more accurate.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a sucker rod end runout detection device in an embodiment of this utility model;

[0018] Figure 2 for Figure 1 The left view;

[0019] Figure 3 for Figure 2 A structural schematic diagram after removing the dial gauge and some sectional views;

[0020] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the movable support in an embodiment of the present invention;

[0022] Figure 6 for Figure 5 The left view;

[0023] Figure 7 for Figure 5 Top view;

[0024] Figure 8 This is a schematic diagram of the structure of the fixed bracket in an embodiment of this utility model;

[0025] Figure 9 This is a schematic diagram of the balance beam in an embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the detection panel in an embodiment of the present invention;

[0027] Figure 11 This is a state diagram of the present invention during measurement in an embodiment of the present invention.

[0028] In the diagram, 1-fixed base, 2-fixed bracket, 3-movable bracket, 4-vertical plate, 5-horizontal plate, 6-positioning hole, 7-strip hole, 8-end cap, 9-bearing, 10-elastic retaining ring for hole, 11-elastic retaining ring for shaft, 12-rotating shaft, 13-balance beam, 14-ring part, 15-inspection panel, 16-dial indicator, 17-fixed column, 18-threaded hole, 19-support rack, 20-sucking rod to be measured, 21-locking nut. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0030] like Figure 1-10 As shown, a sucker rod end runout detection device includes a fixing component, a balancing component, and a detection component. The fixing component includes a fixing base 1, one end of which is provided with a fixing bracket 2. The upper end of the fixing bracket 2 is fixedly connected to a movable bracket 3. The movable bracket 3 and the fixing bracket 2 are fixedly connected by bolts and nuts. The movable bracket 3 includes a vertical plate 4 and a horizontal plate 5, which are vertically fixedly connected. The vertical plate 4 is provided with a positioning hole 6 for bolts to pass through. The fixing bracket 2 is provided with a strip hole 7 for bolts to pass through. The strip hole 7 is provided to facilitate the adjustment of the vertical position of the movable bracket 3. In this embodiment, there are two positioning holes 6 and two strip holes 7.

[0031] The balancing component includes two end caps 8, which are fixedly connected to the lower sides of the cross plate 5 respectively. The two end caps 8 are symmetrically arranged, and each end cap 8 has a bearing 9 inside. The outer periphery of the bearing 9 is provided with a hollow elastic retaining ring 10, and the outer side of the bearing 9 is provided with a shaft elastic retaining ring 11 to prevent the bearing and its outer ring from undergoing unexpected axial movement or displacement. A rotating shaft 12 is rotatably connected between the two bearings 9. Two balancing beams 13 are rotatably connected to the rotating shaft 12. Both balancing beams 13 are perpendicular to the rotating shaft 12. The balancing beams 13 are provided with annular portions 14, through which the rotating shaft 12 passes. The balancing beams 13 and the rotating shaft 12 are fixed by spot welding. The end of the balancing beam 13 near the fixed bracket 2 is bent upward, and the detection component is located at the other end of the balancing beam 13.

[0032] The testing components include a testing panel 15, a dial indicator 16, and a fixed column 17. The dial indicator 16 is fixedly connected to the fixed column 17. The lower end of the fixed column 17 is provided with a certain length of thread. The horizontal plate 5 is provided with a threaded hole 18. The fixed column 17 is threadedly connected to the horizontal plate 5. The lower end of the fixed column 17 is provided with a locking nut 21, which can adjust the length of the fixed column 17 inserted into the threaded hole 18 and lock it by the locking nut 21, thereby adjusting the height of the dial indicator 16 fixed on the fixed column 17.

[0033] The two ends of the detection panel 15 are bent upward to form an obtuse angle of 150°. The detection panel 15 is fixedly connected to the end of the two balance beams 13 away from the fixed bracket 2. The detection panel 15 is set below the dial gauge 16.

[0034] The other end of the fixed base 1 is provided with a support rack 19.

[0035] like Figure 11 As shown, during measurement, the sucker rod 20 to be measured is placed on the support rack 19, with the shoulder of the sucker rod end positioned directly below the detection panel 15, ensuring that the distance between the support of the sucker rod 20 and the shoulder of the sucker rod end is 152.4 mm. First, adjust the contact of the dial indicator 16 to contact the upper surface of the detection panel 15. Rotate the sucker rod to be measured so that the shoulder of the sucker rod end rotates accordingly, causing the detection panel 15 to jump up and down, causing the contact of the dial indicator 16 to move as well, thereby measuring the maximum value of the jump. In this way, the jump value of the entire shoulder is measured, making the measurement more accurate.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sucker rod end jump detection device characterized by: The utility model provides a kind of balance testing device, including fixed component, balance component and detection component, fixed component includes fixed seat (1), the one end of fixed seat (1) is equipped with fixed support (2), the upper end of fixed support (2) is fixedly connected with movable support (3), movable support (3) includes riser (4) and crosspiece (5), balance component includes two end caps (8), two end caps (8) are fixedly connected in the lower two sides of crosspiece (5) respectively, two end caps (8) are equipped with bearing (9) respectively, two bearings (9) are rotatably connected with rotating shaft (12) between, rotating shaft (12) is rotatably connected with two balance beams (13) on, the one end of balance beam (13) close to fixed support (2) is bent upwards, detection component is arranged at the other end of balance beam (13).

2. A sucker rod end jump detection device according to claim 1, characterized in that: The riser (4) and the crosspiece (5) are fixedly connected vertically, the riser (4) is provided with a positioning hole (6) for the bolt to pass through, and the fixed support (2) is provided with a strip-shaped hole (7) for the bolt to pass through.

3. A sucker rod end jump detection device according to claim 2, characterized in that: The two balance beams (13) are vertically arranged with the rotating shaft (12), the balance beam (13) is provided with an annular part (14), the rotating shaft (12) passes through the annular part (14), and the balance beam (13) and the rotating shaft (12) are fixed by spot welding at the cooperation position.

4. A sucker rod end jump detection device according to claim 3, characterized in that: The outer periphery of the bearing (9) is provided with a hole elastic retainer (10), and the outer side of the bearing (9) is provided with a shaft elastic retainer (11).

5. A sucker rod end jump detection device according to claim 4, characterized in that: The detection component includes a detection panel (15), a dial indicator (16) and a fixed stand (17), and the dial indicator (16) is fixedly connected to the fixed stand (17).

6. A sucker rod end jump detection device according to claim 5, characterized in that: The lower end of the fixed stand (17) is provided with a certain length of thread, and the crosspiece (5) is provided with a threaded hole (18), and the fixed stand (17) is threadedly connected with the crosspiece (5).

7. A sucker rod end jump detection device according to claim 6, characterized in that: The lower end of the fixed stand (17) is provided with a locking nut (21).

8. A sucker rod end jump detection device according to claim 7, characterized in that: The two ends of the detection panel (15) are bent upwards to form an obtuse angle of 150°.

9. A sucker rod end jump detection device according to claim 8, characterized in that: The detection panel (15) is fixedly connected to the end of the two balance beams (13) away from the fixed support (2), and the detection panel (15) is arranged below the dial indicator (16).

10. A sucker rod end jump detection device according to claim 9, characterized in that: The other end of the fixed seat (1) is provided with a supporting rack (19).

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