Supporting device for removing rust on surface of petroleum drill rod

By introducing clamping rollers and a servo motor drive mechanism into the oil drill pipe rust removal device, stable clamping and automatic rotational rust removal of drill pipes of different thicknesses are achieved, solving the applicability and rotational processing problems of existing devices and extending the service life of drill pipes.

CN223656721UActive Publication Date: 2025-12-12YANCHANG OIL FIELD
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Patent Information

Application Number
CN202423043184.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-12-12
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

Existing oil drill pipe rust removal devices cannot adapt to drill pipes of different diameters and cannot drive the drill pipes to rotate for processing, resulting in unstable clamping and increased wear.

Method used

It employs first and second clamping rollers, an adjustment mechanism, and a transmission mechanism. The clamping rollers are driven by a servo motor to move and rotate, achieving three-point positioning clamping and automatic rotation of the drill rod, adapting to drill rods of different thicknesses.

Benefits of technology

It achieves stable clamping and automatic rotational rust removal of drill rods of different thicknesses, extends the life of drill rods, and improves the applicability and efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a supporting device for removing rust on the surface of a petroleum drill rod, which comprises a supporting frame, a first clamping roller, second clamping rollers, an adjusting mechanism and a transmission mechanism, and has the beneficial effects that firstly, the distance between the two second clamping rollers is adjusted by opening the adjusting mechanism; the drill rod is erected on the two second clamping rollers, the first clamping roller is driven by the adjusting mechanism to descend, so that the first clamping roller is extruded on the surface of the drill rod, the two second clamping rollers are matched with the first clamping roller to conduct three-point positioning and clamping on a drill hole, and finally the second clamping rollers are driven by the transmission mechanism to rotate. And the second clamping roller can drive the supported drill rod to rotate, so that the drill rod can be adjusted to automatically rotate, the drill rod can be conveniently rotated and derusted, the structure is reasonable, drill rods with different thicknesses can be conveniently clamped and driven, and better applicability is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of rust removal technology for oil drill pipes, and in particular to a support device for rust removal on the surface of oil drill pipes. Background Technology

[0002] A drill pipe is a threaded steel tube used to connect the drilling rig's surface equipment to the drilling equipment or bottom hole assembly located at the bottom of the well. The purpose of the drill pipe is to transport drilling mud to the drill bit and, together with the drill bit, raise, lower, or rotate the bottom hole assembly.

[0003] Utility model patent CN217019502U discloses a support device for rust removal on the surface of oil drill pipe, including a support frame with a cavity inside. The upper surface of the support frame has an arc-shaped surface with a ball movably connected to it. The upper surface of the support frame has a groove. A clamping member is provided inside the support frame. A round rod is provided inside the groove. An installation block is provided above the support frame. The lower surface of the installation block has a groove with a stabilizing mechanism inside. The clamping member includes multiple sets of lifting rods inserted inside the support frame, and a ball A is movably connected to the top of each lifting rod.

[0004] This utility model solves the problem of shaking and increased wear during the rust removal process of drill pipes, thereby extending their service life. However, the device mainly uses a stabilizing plate and clamping components to position and hold the drill pipe. This structure is not adjustable and cannot be used to stably hold drill pipes of different thicknesses. Furthermore, this structure cannot drive the clamped drill pipe to rotate for processing, which has certain drawbacks. Therefore, there is an urgent need for a support device for rust removal of oil drill pipe surfaces to solve the above problems. Utility Model Content

[0005] To solve the above problems, this utility model provides a support device for rust removal on the surface of oil drill pipe. This utility model is achieved through the following technical solution.

[0006] A support device for rust removal on the surface of oil drill pipe includes a support frame and further includes:

[0007] The first clamping roller is rotatably connected to the first clamping roller. The two ends of the compression seat are fixedly connected to the second slide rods. The two second slide rods are movably connected to the lifting plate at one end of the top of the support frame.

[0008] The second clamping roller consists of two movably connected to the support frame. A movable seat is rotatably connected to the second clamping roller, and the first clamping roller is located above the second clamping roller.

[0009] An adjustment mechanism, wherein the adjustment structure is used to drive the first clamping roller and the second clamping roller to perform displacement;

[0010] A transmission mechanism is provided for driving the second clamping roller to rotate.

[0011] Furthermore, the adjustment mechanism includes a first servo motor and a second servo motor. The first servo motor is fixedly connected to the support frame via a support plate. The output shaft of the first servo motor is fixedly connected to a lead screw, which is threadedly engaged with the lifting plate. The second servo motor is fixedly connected to the top of the support frame, and the output shaft of the second servo motor is fixedly connected to a worm gear.

[0012] Furthermore, the support frame has two limiting ports, and a first sliding rod and a bidirectional screw are connected through the corresponding limiting ports of the support frame. The bidirectional screw is rotatably connected to the support frame, and a worm gear is fixedly connected to the bidirectional screw. The worm and the worm gear are meshed together.

[0013] Furthermore, the transmission mechanism includes a connecting frame and a transmission rod. The connecting frame is fixedly connected to the movable seat at the left end, and a third servo motor is fixedly connected to the connecting frame. The output shaft of the third servo motor is fixedly connected to a first pulley. One end of the transmission rod is rotatably connected to the shaft of the second clamping roller at the left end, and the other end of the transmission rod is fixedly connected to a second pulley. The second pulley and the first pulley are mutually transmitted through a transmission belt.

[0014] Furthermore, both ends of the support frame are rotatably connected to movable wheels.

[0015] The beneficial effects of this utility model are as follows: During operation, the distance between the two second clamping rollers is first adjusted by opening the adjustment mechanism. Then, the drill rod is placed on the two second clamping rollers. Next, the first clamping roller is driven to descend by the adjustment mechanism, causing it to press against the surface of the drill rod. This allows the two second clamping rollers to work with the first clamping roller to perform three-point positioning clamping of the drill hole. Finally, the second clamping rollers are driven to rotate by the transmission mechanism. The second clamping rollers can drive the supported drill rod to rotate, thereby adjusting the automatic rotation of the drill rod. This facilitates the rotation of the drill rod for rust removal. The structure is reasonable and it is convenient for clamping and driving drill rods of different thicknesses, thus having better applicability. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 : A schematic diagram of the structure of a support device for rust removal on the surface of an oil drill pipe according to the present invention;

[0018] Figure 2 : Front view of this utility model;

[0019] Figure 3 : A schematic diagram of the connection between the support frame and the bidirectional screw of this utility model;

[0020] Figure 4 : A schematic diagram showing the connection between the second clamping roller and the third servo motor of this utility model.

[0021] The attached figures are labeled as follows:

[0022] 1. Support frame; 11. First slide rod; 12. Double-acting screw; 121. Worm gear; 13. Moving wheel;

[0023] 2. First clamping roller; 21. Extrusion seat; 22. Second slide bar; 23. Lifting plate;

[0024] 3. Second clamping roller; 31. Movable seat;

[0025] 4. First servo motor; 41. Lead screw; 42. Support plate;

[0026] 5. Second servo motor; 51. Worm gear;

[0027] 6. Connecting frame; 61. Third servo motor; 62. First pulley;

[0028] 7. Transmission rod; 71. Second pulley. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figure 1-4 As shown, the present invention has the following specific embodiments.

[0031] Example:

[0032] A support device for rust removal on the surface of oil drill pipe includes a support frame 1, and further includes:

[0033] The first clamping roller 2 is rotatably connected to the first clamping roller 2, and the two ends of the compression seat 21 are fixedly connected to the second slide rod 22. The two second slide rods 22 are movably connected to the top of the support frame 1 and the lifting plate 23 is fixedly connected to one end.

[0034] The second clamping roller 3 consists of two movably connected to the support frame 1. A movable seat 31 is rotatably connected to the second clamping roller 3, and the first clamping roller 2 is located above the second clamping roller 3.

[0035] The adjustment mechanism and adjustment structure are used to drive the first clamping roller 2 and the second clamping roller 3 to make displacement.

[0036] The transmission mechanism is used to drive the second clamping roller 3 to rotate.

[0037] By adopting the above technical solution, when using the device, firstly, the distance between the two second clamping rollers 3 is adjusted by opening the adjustment mechanism. Then, the drill rod is placed on the two second clamping rollers 3. Next, the first clamping roller 2 is driven to descend by the adjustment mechanism, so that the first clamping roller 2 presses against the surface of the drill rod. This allows the two second clamping rollers 3 to cooperate with the first clamping roller 2 to perform three-point positioning clamping of the drill hole. Finally, the second clamping rollers 3 are driven to rotate by the transmission mechanism. The second clamping rollers 3 can drive the supported drill rod to rotate, thereby adjusting the automatic rotation of the drill rod, which is convenient for rotating the drill rod to remove rust. The structure is reasonable and convenient for clamping and driving drill rods of different thicknesses, thus having better applicability.

[0038] Specifically, the adjustment mechanism includes a first servo motor 4 and a second servo motor 5. The first servo motor 4 is fixedly connected to the support frame 1 through a support plate 42. The output shaft of the first servo motor 4 is fixedly connected to a lead screw 41, and the lead screw 41 is threadedly engaged with the lifting plate 23. The second servo motor 5 is fixedly connected to the top of the support frame 1, and the output shaft of the second servo motor 5 is fixedly connected to a worm gear 51.

[0039] The support frame 1 has two limiting ports. The first slide rod 11 and the bidirectional screw 12 are connected through the corresponding limiting ports of the support frame 1. The bidirectional screw 12 is rotatably connected to the support frame 1, and a worm gear 121 is fixedly connected to the bidirectional screw 12. The worm 51 is meshed with the worm gear 121.

[0040] By adopting the above technical solution, the adjustment mechanism can drive the first clamping roller 2 and the second clamping roller 3 to move, that is, the second servo motor 5 can drive the worm gear 51 to rotate, the worm gear 51 can drive the meshing worm wheel 121 to rotate, and the worm wheel 121 can drive the bidirectional screw 12 to rotate on the support frame 1. Since the two movable seats 31 are respectively connected to the two ends of the bidirectional screw 12, and the bidirectional screw 12 and the movable seats 31 are threadedly engaged, the bidirectional screw 12 can drive the two movable seats 31 to move on the first slide rod 11, thereby adjusting the two second clamping rollers. The spacing between the rollers 3 is such that the first servo motor 4 can drive the lead screw 41 to rotate. Since the lead screw 41 is connected to the lifting plate 23 through a threaded connection, and the lifting plate 23 is connected to the extrusion seat 21 through the second slide rod 22, the first clamping roller 2 is rotatably connected to the extrusion seat 21. Thus, the first servo motor 4 can drive the first clamping roller 2 to rise and fall, thereby adjusting the height of the first clamping roller 2 from the second clamping roller 3. This allows for adjustment of the displacement of the two second clamping rollers 3 and the first clamping roller 2, which can be adjusted according to the thickness of the drill rod, resulting in better applicability.

[0041] Specifically, the transmission mechanism includes a connecting frame 6 and a transmission rod 7. The connecting frame 6 is fixedly connected to the movable seat 31 at the left end. A third servo motor 61 is fixedly connected to the connecting frame 6. The output shaft of the third servo motor 61 is fixedly connected to a first pulley 62. One end of the transmission rod 7 is rotatably connected to the shaft of the second clamping roller 3 at the left end. The other end of the transmission rod 7 is fixedly connected to a second pulley 71. The second pulley 71 and the first pulley 62 are mutually transmitted through a transmission belt.

[0042] By adopting the above technical solution, the transmission mechanism can drive the connected second clamping roller 3 to rotate, that is, the third servo motor 61 can drive the first pulley 62 to rotate, the first pulley 62 drives the second pulley 71 to rotate synchronously through the transmission belt, and the second pulley 71 drives the connected second clamping roller 3 to rotate on the moving seat 31 through the transmission rod 7, thereby enabling the second clamping roller 3 to drive the supported drill rod to rotate. The third servo motor 61 is fixedly connected to the moving seat 31 through the connecting frame 6.

[0043] Specifically, both ends of the support frame 1 are rotatably connected to movable wheels 13.

[0044] By adopting the above technical solution, the movable wheel 13 facilitates the movement of the support frame 1, making it easier to move.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A support device for rust removal on the surface of oil drill pipe, comprising a support frame (1), characterized in that, Also includes: The first clamping roller (2) is rotatably connected to the first clamping roller (2), and the two ends of the clamping roller (2) are fixedly connected to the second slide rod (22). The two second slide rods (22) are movably connected to the top of the support frame (1) and the lifting plate (23) is fixedly connected to one end. The second clamping roller (3) consists of two movably connected to the support frame (1). A movable seat (31) is rotatably connected to the second clamping roller (3), and the first clamping roller (2) is located above the second clamping roller (3). An adjustment mechanism is provided for driving the first clamping roller (2) and the second clamping roller (3) to make displacement. A transmission mechanism is provided for driving the second clamping roller (3) to rotate.

2. The support device for rust removal on the surface of oil drill pipe according to claim 1, characterized in that: The adjustment mechanism includes a first servo motor (4) and a second servo motor (5). The first servo motor (4) is fixedly connected to the support frame (1) through a support plate (42). The output shaft of the first servo motor (4) is fixedly connected to a lead screw (41), and the lead screw (41) is threadedly engaged with the lifting plate (23). The second servo motor (5) is fixedly connected to the top of the support frame (1), and the output shaft of the second servo motor (5) is fixedly connected to a worm gear (51).

3. The support device for rust removal on the surface of oil drill pipe according to claim 2, characterized in that: The support frame (1) has two limiting ports. The support frame (1) is connected through the limiting ports with a first sliding rod (11) and a double screw (12). The double screw (12) is rotatably connected to the support frame (1), and a worm wheel (121) is fixedly connected to the double screw (12). The worm (51) and the worm wheel (121) are meshed together.

4. The support device for rust removal on the surface of oil drill pipe according to claim 1, characterized in that: The transmission mechanism includes a connecting frame (6) and a transmission rod (7). The connecting frame (6) is fixedly connected to the movable seat (31) at the left end. A third servo motor (61) is fixedly connected to the connecting frame (6). The output shaft of the third servo motor (61) is fixedly connected to a first pulley (62). One end of the transmission rod (7) is rotatably connected to the shaft of the second clamping roller (3) at the left end. The other end of the transmission rod (7) is fixedly connected to a second pulley (71). The second pulley (71) and the first pulley (62) are mutually transmitted through a transmission belt.

5. A support device for rust removal on the surface of oil drill pipe according to claim 1, characterized in that: Both ends of the support frame (1) are rotatably connected to movable wheels (13).

Citation Information

Patent Citations

  • Supporting device for removing rust on surface of petroleum drill rod

    CN217019502U