An automatic pipe end gauge device for oil casing

The automatic pipe end gauging device uses a drive motor and clamping components to automate the gauging of oil casing pipes, solving the problems of high labor intensity and low efficiency in existing technologies, improving gauging efficiency and protecting workers' health.

CN224435313UActive Publication Date: 2026-06-30SHANDONG MOLONG PETROLEUM MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG MOLONG PETROLEUM MACHINERY CO LTD
Filing Date
2025-07-09
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing process of bore gauge inspection for oil casing pipes is labor-intensive, inefficient, and causes serious health damage to workers over a long period of time.

Method used

An automatic pipe end gauging device is adopted, which uses a drive motor to drive a gear and rack to move the gauging bar along the rack. Combined with a clamping assembly, the gauging bar is clamped and positioned. The gauging is completed by photoelectric switch sensing, thus realizing automated gauging.

Benefits of technology

It improves the efficiency of oil casing pipe gauging, reduces the labor intensity of workers, reduces physical harm, and enhances the automation level of gauging.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to an automatic pipe end gauging device for oil casing and tubing, comprising a base, a mounting base, a drive assembly, a clamping assembly, and a gauging rod. The mounting base is slidably fitted onto the base. The drive assembly includes a drive motor, a drive gear, and a drive rack. The drive motor is fixedly mounted on the mounting base, the drive gear is coaxially fixedly mounted on the output shaft of the drive motor, and the drive rack is fixedly mounted on the base. The drive gear and the drive rack mesh. The clamping assembly is mounted on the mounting base, and the gauging rod is mounted on the clamping assembly, which clamps and fixes the gauging rod. This application improves the efficiency of oil casing and tubing gauging.
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Description

Technical Field

[0001] This application relates to the field of oil casing, and more particularly to an automatic pipe end gauge device for oil casing. Background Technology

[0002] According to the usage requirements of oil casing, after the coupling is tightened, the pipe end needs to be caliped to check whether the inner diameter of the oil casing pipe end has changed during the coupling tightening process. Currently, pipe end caliping is mainly done manually by workers carrying caliper bars. This process is very labor-intensive, and long-term work is very harmful to the workers' health, and the caliping efficiency is poor. Summary of the Invention

[0003] To improve the efficiency of oil casing pipe gauging, this application provides an automatic pipe end gauging device for oil casing pipe.

[0004] The automatic pipe end gauge device for oil casing provided in this application adopts the following technical solution:

[0005] An automatic pipe end gauging device for oil casing includes a base, a mounting base, a drive assembly, a clamping assembly, and a gauging rod. The mounting base is slidably fitted onto the base. The drive assembly includes a drive motor, a drive gear, and a drive rack. The drive motor is fixedly mounted on the mounting base. The drive gear is coaxially fixedly mounted on the output shaft of the drive motor. The drive rack is fixedly mounted on the base. The drive gear and the drive rack mesh. The clamping assembly is mounted on the mounting base. The gauging rod is mounted on the clamping assembly, and the clamping assembly clamps and fixes the gauging rod.

[0006] By adopting the above technical solution, when the casing needs to be caliped, the end of the casing to be caliped is aligned with the caliper bar. Then, the drive motor drives the output shaft of the drive motor to rotate the drive gear. The rotation of the drive gear causes the mounting base to slide along the length of the drive rack, thereby moving the caliper bar along the length of the rack. The caliper bar then gradually passes through the casing, thus completing the rapid caliping of the casing. This improves the caliping efficiency of the casing and improves the current problem that pipe end caliping mainly involves workers manually moving the caliper bar, which is labor-intensive, causes great harm to workers' health in the long run, and has poor caliping efficiency.

[0007] Optionally, the clamping assembly includes a clamping sleeve and at least two clamping claws. The clamping sleeve is fixedly disposed on the mounting base, and each of the clamping claws is rotatably disposed on the clamping sleeve. When the through rod passes through the clamping sleeve, the through rod pushes each of the clamping claws to rotate toward the through rod, so that each of the clamping claws clamps and fixes the outer circumferential surface of the through rod.

[0008] Optionally, the clamping assembly further includes a clamping rod, which slides and engages with the clamping sleeve. Each clamping claw has a through-hole clamping groove. When each clamping claw clamps the through-hole rod, each clamping groove is interconnected, and the clamping rod passes through each clamping groove.

[0009] Optionally, the length dimension of the clamping rod gradually decreases from one end to the other end, and the width dimension of the clamping rod gradually decreases from one end to the other end.

[0010] Optionally, the clamping assembly further includes a clamping spring located between the clamping rod and the clamping sleeve, with one end of the clamping spring abutting against the clamping rod and the other end of the clamping spring abutting against the clamping sleeve.

[0011] Optionally, the clamping claw includes a claw body and a clamping part, which are rotatably connected. When the clamping claw clamps and fixes the bore bar, the clamping part clamps and fixes the bore bar to its outer circumferential surface.

[0012] Optionally, the clamping assembly further includes a plurality of adjusting bolts, each of which is threaded to the clamping sleeve and is evenly distributed around the axis of the clamping sleeve.

[0013] Optionally, the base is fixedly provided with multiple clamping frames, each of which is rotatably connected to two opposing clamping wheels. When the oil casing is being calibrated, the oil casing is positioned between the clamping frames, and the two clamping wheels respectively abut against the two sides of the oil casing.

[0014] Optionally, the base is fixedly provided with a sensor frame, and the sensor frame is slidably coupled with multiple photoelectric switches. Each photoelectric switch is used to sense the position of the mounting base. When each photoelectric switch senses that the gauging rod has completed the gauging, each photoelectric switch drives the driving assembly to drive away from the oil casing.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] When the casing needs to be caliped, the end of the casing to be caliped is aligned with the caliper bar. Then, the drive motor drives the output shaft of the drive motor to rotate the drive gear. The rotation of the drive gear causes the mounting base to slide along the length of the drive rack, thereby moving the caliper bar along the length of the rack. The caliper bar then gradually passes through the casing, thus completing the rapid caliping of the casing. This improves the caliping efficiency of the casing and improves the current problem that pipe end caliping mainly involves workers manually moving the caliper bar, which is labor-intensive, harmful to workers' health in the long run, and has poor caliping efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the driver component structure according to an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the clamping component structure according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the clamping state of the gripper in an embodiment of this application. Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the clamping state of the gripper in an embodiment of this application. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the gripper structure according to an embodiment of this application;

[0023] Figure 7 This is a schematic diagram of the clamping rod structure in an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Base; 11. Clamping frame; 111. Clamping wheel; 12. Sensor frame; 121. Photoelectric switch; 2. Mounting base; 3. Drive assembly; 31. Drive motor; 32. Drive gear; 33. Drive rack; 4. Clamping assembly; 41. Clamping sleeve; 42. Clamping claw; 421. Claw body; 4211. Clamping groove; 422. Clamping part; 43. Clamping rod; 44. Clamping spring; 45. Adjusting bolt; 5. Through rod. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0026] This application discloses an automatic pipe end gauge device for oil casing. (Refer to...) Figure 1 An automatic pipe end gauging device for oil casing includes a base 1, a mounting base 2, a drive assembly 3, a clamping assembly 4, and a gauging rod 5. The mounting base 2 is slidably fitted onto the base 1.

[0027] Reference Figure 2 The drive assembly 3 includes a drive motor 31, a drive gear 32, and a drive rack 33. The drive motor 31 is fixedly mounted on the mounting base 2, the drive gear 32 is coaxially fixedly mounted on the output shaft of the drive motor 31, and the drive rack 33 is fixedly mounted on the base 1. The drive gear 32 and the drive rack 33 mesh.

[0028] Reference Figures 3 to 6The clamping assembly 4 includes a clamping sleeve 41 and two clamping claws 42. The clamping sleeve 41 is fixedly disposed on one side of the mounting base 2. Each clamping claw 42 is rotatably disposed on the clamping sleeve 41. Each clamping claw 42 is evenly distributed around the axis of the clamping sleeve 41. When the through rod 5 moves toward the clamping sleeve 41 and passes through the clamping sleeve 41, as the through rod 5 moves toward the clamping sleeve 41, the through rod 5 pushes each clamping claw 42 to rotate toward the outer circumferential surface of the through rod 5, so that each clamping claw 42 clamps and fixes the outer circumferential surface of the through rod 5. The clamping claw 42 includes a claw body part 421 and a clamping part 422. The claw body part 421 and the clamping part 422 are rotatably connected. When the clamping claw 42 clamps and fixes the through rod 5, the clamping part 422 clamps and fixes the through rod 5 to the outer circumferential surface of the through rod 5.

[0029] Reference Figures 3 to 7 The clamping assembly 4 also includes a clamping rod 43, which slides and engages with the clamping sleeve 41 radially. Each clamping claw 42 has a through-hole clamping groove 4211. When each clamping claw 42 clamps the through-hole rod 5, the clamping grooves 4211 are interconnected, and the clamping rod 43 passes through each clamping groove 4211. This makes it less likely that when the through-hole rod 5 moves away from the clamping sleeve 41, it will cause the clamping claws 42 to rotate away from the through-hole rod 5. This improves the clamping stability of each clamping claw 42 on the through-hole rod 5. Furthermore, the length dimension of the clamping rod 43 from one end to the other end is [not specified]. As the dimensions gradually decrease, the width dimension of the clamping rod 43 gradually decreases from one end of the clamping rod 43 to the other end. This allows the through rod 5 to move closer to the clamping sleeve 41, resulting in more interconnected sections in each clamping groove 4211. Consequently, the clamping rod 43 can penetrate deeper into each clamping groove 4211, thereby improving the stability of the clamping assembly 4 in clamping the through rod 5. The horizontal cross-section of the clamping rod 43 is hexagonal. In this embodiment, the distance between the two farthest points of the horizontal cross-section of the clamping rod 43 is the length dimension, and the vertical distance between the two shortest parallel sides of the horizontal cross-section of the clamping rod 43 is the width dimension.

[0030] Reference Figures 3 to 7The clamping assembly 4 also includes a clamping spring 44, which is located between the clamping rod 43 and the clamping sleeve 41. One end of the clamping spring 44 abuts against the clamping rod 43, and the other end abuts against the clamping sleeve 41. This allows the clamping spring 44 to push the clamping rod 43 towards the clamping sleeve 41 when the through rod 5 moves towards the clamping sleeve 41, pushing each clamping claw 42 to rotate towards the outer circumference of the through rod 5, thus connecting the clamping slots 4211. The clamping spring 44 then pushes the clamping rod 43 towards the clamping slots 4211 and through them. As the through rod 5 continues to move towards the clamping sleeve 41, more of the clamping slots 4211 become connected, thereby increasing the connection between the clamping rod and the clamping sleeve 41. The clamping rod 43 is inserted deeper into each clamping groove 4211, thereby improving the stability of the clamping and fixing of the duct rod 5 by each clamping claw 42. The clamping rod 43 is determined by each clamping claw 42 to be difficult to move further towards the clamping sleeve 41, thereby improving the clamping and fixing efficiency of the clamping assembly 4 on the duct rod 5. When the clamping assembly 4 needs to release the clamping and fixing, the clamping rod 43 disengages from each clamping groove 4211, thereby allowing the duct rod 5 to move away from the clamping sleeve 41 and disengage from the clamping and fixing of each clamping claw 42. This improves the replacement efficiency of the duct rod 5 of the ducting device, making the ducting device more suitable for ducting oil casings of different diameters.

[0031] Reference Figures 3 to 7 The clamping assembly 4 also includes multiple adjusting bolts 45, each of which is threaded to the clamping sleeve 41. The adjusting bolts 45 are evenly distributed around the axis of the clamping sleeve 41, so that by turning each adjusting bolt 45, the coaxiality between the duct rod 5 and the clamping sleeve 41 can be finely adjusted, thereby improving the duct quality of the duct rod 5 for the oil casing.

[0032] Reference Figure 1 and Figure 2 The base 1 is fixedly provided with multiple clamping frames 11, each clamping frame 11 is rotatably connected with two opposing clamping wheels 111. When the oil casing is caliped, the oil casing is positioned between the clamping frames 11, and the two clamping wheels 111 respectively abut against the two sides of the oil casing, thereby completing the positioning of the oil casing. This makes it difficult for the position of the oil casing to change when caliping. The base 1 is fixedly provided with a sensing frame 12, and the sensing frame 12 has two photoelectric switches 121 that slide together. Each photoelectric switch 121 is used to sense the position of the mounting base 2. When each photoelectric switch 121 senses that the caliper 5 has completed caliping, each photoelectric switch 121 drives the drive assembly 3 to drive away from the oil casing.

[0033] The implementation principle of the automatic pipe end gauging device for oil casing in this embodiment is as follows: When the gauging device gaugs the oil casing, a gauging rod 5 of appropriate size is clamped and fixed to the clamping assembly 4. The position between the two photoelectric switches 121 is adjusted so that the distance between the two photoelectric switches 121 is equal to the movement stroke of the gauging rod 5. The drive motor 31 drives the output shaft of the drive motor 31 to rotate the drive gear 32. The rotation of the drive gear 32 causes the mounting base 2 to slide along the length direction of the drive rack 33, thereby causing the gauging rod 5 to move along the length of the rack. The tube moves in one direction, and then the sizing bar 5 gradually passes through the oil casing. When the photoelectric switch 121 senses that the movement of the sizing bar 5 has completed, the photoelectric switch 121 is driven, which causes the drive component 3 to drive in the opposite direction, thereby driving the sizing bar 5 to move away from the oil casing, thus completing the rapid sizing of the oil casing. This makes the sizing efficiency of the oil casing better and improves the current problem that pipe end sizing is mainly done manually by workers carrying the sizing bar 5, which is very labor-intensive, causes great harm to workers' health in the long run, and has poor sizing efficiency.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic casing and tubing pipe end gauge, characterized by: The device includes a base (1), a mounting base (2), a drive assembly (3), a clamping assembly (4), and a guide bar (5). The mounting base (2) is slidably fitted onto the base (1). The drive assembly (3) includes a drive motor (31), a drive gear (32), and a drive rack (33). The drive motor (31) is fixedly mounted on the mounting base (2). The drive gear (32) is coaxially fixedly mounted on the output shaft of the drive motor (31). The drive rack (33) is fixedly mounted on the base (1). The drive gear (32) and the drive rack (33) mesh. The clamping assembly (4) is mounted on the mounting base (2). The guide bar (5) is mounted on the clamping assembly (4). The clamping assembly (4) clamps and fixes the guide bar (5).

2. The automatic casing collar locator of claim 1, wherein: The clamping assembly (4) includes a clamping sleeve (41) and at least two clamping claws (42). The clamping sleeve (41) is fixedly disposed on the mounting base (2). Each of the clamping claws (42) is rotatably disposed on the clamping sleeve (41). When the through rod (5) passes through the clamping sleeve (41), the through rod (5) pushes each of the clamping claws (42) to rotate toward the through rod (5) so that each of the clamping claws (42) clamps and fixes the outer circumferential surface of the through rod (5).

3. The automatic casing collar locator of claim 2, wherein: The clamping assembly (4) further includes a clamping rod (43), which slides and engages with the clamping sleeve (41). Each clamping claw (42) has a through clamping groove (4211). When each clamping claw (42) clamps the through-diameter rod (5), each clamping groove (4211) is interconnected, and the clamping rod (43) passes through each clamping groove (4211).

4. The automatic casing collar locator of claim 3, wherein: The length dimension of the clamping rod (43) gradually decreases from one end to the other end, and the width dimension of the clamping rod (43) gradually decreases from one end to the other end.

5. The automatic pipe end gauge device for oil casing according to claim 3, characterized in that: The clamping assembly (4) further includes a clamping spring (44), which is located between the clamping rod (43) and the clamping sleeve (41). One end of the clamping spring (44) abuts against the clamping rod (43), and the other end of the clamping spring (44) abuts against the clamping sleeve (41).

6. The automatic pipe end gauge device for oil casing according to claim 2, characterized in that: The clamping claw (42) includes a claw body (421) and a clamping part (422), which are rotatably connected. When the clamping claw (42) clamps and fixes the through rod (5), the clamping part (422) clamps and fixes the through rod (5) on its outer circumferential surface.

7. The automatic pipe end gauge device for oil casing according to claim 2, characterized in that: The clamping assembly (4) also includes a plurality of adjusting bolts (45), each of which is threaded to the clamping sleeve (41), and the adjusting bolts (45) are evenly distributed around the axis of the clamping sleeve (41).

8. The automatic pipe end gauge device for oil casing according to claim 1, characterized in that: The base (1) is fixedly provided with multiple clamping frames (11), and each clamping frame (11) is rotatably connected with two clamping wheels (111) arranged opposite each other. When the oil casing is being circumscribed, the oil casing is placed between each clamping frame (11), and the two clamping wheels (111) respectively abut against the two sides of the oil casing.

9. The automatic pipe end gauge device for oil casing according to claim 1, characterized in that: The base (1) is fixedly provided with a sensor frame (12), and the sensor frame (12) is slidably fitted with a plurality of photoelectric switches (121). Each photoelectric switch (121) is used to sense the position of the mounting base (2). When each photoelectric switch (121) senses that the duct rod (5) has completed the ducting, each photoelectric switch (121) drives the driving assembly (3) to drive away from the oil casing.