Drill pipe rotation performance testing device

Abstract

The drill pipe rotation performance testing device of the present invention includes: a first base, the length direction of which is a first direction; a power bench, the power bench including a second base and a power head, the power head being disposed on the second base and having a power spline sleeve for connecting to the drill pipe, the power head for driving the drill pipe to rotate; a load table device, the load table device including a third base and a torque sensor, the torque sensor being disposed on the third base and connected to the load table spline sleeve via a universal joint, the load table spline sleeve being opposite to the power spline sleeve in the first direction, the load table spline sleeve for connecting to the drill pipe; and a moving device, the moving device being disposed on the first base and for driving at least one of the second base and the third base to move in the first direction. Therefore, the drill pipe rotation performance testing device according to the present invention is suitable for measuring the torque of various drill pipes.

Description

Technical Field

[0001] This invention relates to the field of mining technology, and more specifically to a drill pipe rotation performance testing device. Background Technology

[0002] As the execution end of tunnel drilling operations, drilling pipes bear complex loads during operation, and their rotational performance directly affects the safety, efficiency, and economy of underground coal mine work. Currently, the industry's drilling pipe rotational performance testing equipment is relatively simple, lacking testing equipment specifically designed for testing the rotational performance of high-torque drilling pipes, and it is also difficult to achieve rapid adaptation testing for drilling pipes of different specifications. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a drill pipe rotation performance testing device.

[0004] The drill pipe rotation performance testing device of this invention includes:

[0005] A first base, wherein the length direction of the first base is a first direction; A power test stand, comprising a second base and a power head, wherein the power head is disposed on the second base and is provided with a power spline sleeve, the power spline sleeve being used to connect to the drill pipe and the power head being used to drive the drill pipe to rotate; A load table device, comprising a third base and a torque sensor, wherein the torque sensor is disposed on the third base and is connected to the load table spline sleeve via a universal joint, the load table spline sleeve being disposed opposite to the power spline sleeve in the first direction, and the load table spline sleeve being used to connect to the drill pipe. A moving device is disposed on the first base, and the moving device is used to drive at least one of the second base and the third base to move in the first direction.

[0006] Therefore, the drill pipe rotation performance testing device according to embodiments of the present invention is suitable for measuring the torque of various drill pipes.

[0007] In some embodiments, the moving device includes a slide rail, a moving frame, and a first driver. The slide rail is disposed on the first base, the moving frame is slidably disposed on the slide rail along the first direction, and the first driver is connected to the moving frame and can drive the moving frame to move along the first direction. The second base is disposed on the movable frame, and the third base is disposed on the first base; At least one of the mobile frame and the first base is provided with a first sensor, which is used to measure the moving distance of the mobile frame.

[0008] In some embodiments, the slide rail includes a first guide rail and a second guide rail, which are arranged side by side in a second direction. Both the first guide rail and the second guide rail have a slide groove that cooperates with the movable frame. The slide groove extends along the first direction, and the movable frame is slidably disposed in the slide groove along the first direction. The first actuator includes a first hydraulic cylinder, the fixed part of the first hydraulic cylinder is hinged to a first drive fixed seat, the first drive fixed seat is fixed on the first base, and the telescopic part of the first hydraulic cylinder is connected to the movable frame. The first sensor includes a first proximity switch mounting base and a first proximity switch sensing base, one of which is disposed on the first base and the other is disposed on the movable frame.

[0009] In some embodiments, the power test bench further includes a power test bench moving part and a second sensor; The power test frame moving part is connected to the second base and the power head, and the power test frame moving part can drive the power head to move in the first direction; The second sensor is used to measure the distance traveled by the power unit.

[0010] In some embodiments, the power platform moving part includes an adjusting seat, an adjusting plate, and a second driver. The adjusting seat is disposed on the second base, and the adjusting plate is movably disposed on the adjusting seat along the first direction. The second driver can drive the adjusting plate to move in the first direction. The second sensor includes a second proximity switch mounting base and a second proximity switch sensing base. One of the second proximity switch mounting base and the second proximity switch sensing base is disposed on the second base or the adjusting base, and the other is disposed on the adjusting plate or the power head.

[0011] In some embodiments, the load platform device further includes a laser displacement sensor for measuring the distance between the third base and the second base; The load platform device also includes a brake, which is located on the third base. The brake is connected to the torque sensor via a first coupling, and the torque sensor is connected to the universal joint via a second coupling.

[0012] In some embodiments, the load table device further includes a lifting device, the lifting device comprising... Lifting station; A guide portion is provided on the lifting and fixing seat and extends in the vertical direction; The universal joint support has a support groove. The universal joint includes a first part and a second part. The first part is movable relative to the second part. The first part is connected to the load cell spline sleeve. The second part is connected to the torque sensor. The opening of the support groove faces upward. The universal joint support is located below the universal joint. The first part of the universal joint fits in the support groove. The universal joint support is slidably connected to the guide part. A lifting drive, which can drive the universal joint support to move in the vertical direction.

[0013] In some embodiments, the lifting and fixing seat is disposed on the first base; The guide portion includes a first guide rod and a second guide rod, which are located on both sides of the lifting driver. The universal joint support portion is slidably connected to the first guide rod and the second guide rod. The lifting drive is a lifting cylinder, the fixed part of the lifting cylinder is provided on the lifting fixed seat, and the telescopic part of the lifting cylinder is connected to the universal joint support part.

[0014] In some embodiments, the drill pipe rotation performance testing device further includes a drill pipe clamping device, which includes a clamp and a clamping driver. The clamp includes jaws for clamping the drill pipe, and a third driver is connected to the clamp and drives the jaws to clamp the drill pipe.

[0015] In some embodiments, the clamp includes a first jaw and a second jaw, the first jaw and the second jaw are disposed opposite to each other in a second direction, the first jaw and the second jaw are movably disposed on a clamping base along the second direction, the clamping base is disposed on the power platform, and the second direction is perpendicular to the first direction; The third actuator includes a third hydraulic cylinder and a fourth hydraulic cylinder. The third hydraulic cylinder is connected to the first gripper and can drive the first gripper to move in the second direction. The fourth hydraulic cylinder is connected to the second gripper and can drive the second gripper to move in the second direction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a drill pipe rotation performance testing device according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the first base according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of a mobile device according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of a power test bench according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of a drill pipe clamping device according to an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of a load table device according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of a lifting device according to an embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of a drill pipe according to an embodiment of the present invention.

[0024] Reference numerals: 1. First base; 2. Moving device; 21. Lower plate of the first guide rail; 22. Lower plate of the second guide rail; 23. Upper plate of the first guide rail; 24. Upper plate of the second guide rail; 25. First drive fixing seat; 26. First hydraulic cylinder; 27. First proximity switch fixing seat; 28. Moving frame; 29. ​​First proximity switch sensing seat; 3. Power platform; 31. Second base; 32. Adjusting seat; 33. Adjusting plate; 34. Second driver; 35. Power head; 36. Power spline sleeve; 37. Drill rod clamping device; 371. Clamping base; 372. Third hydraulic cylinder; 373. Fourth hydraulic cylinder; 374. First clamp 375. Second gripper; 38. Pin; 39. Second proximity switch sensor base; 310. Second proximity switch mounting base; 4. Load platform device; 41. Third base; 42. Laser displacement sensor; 43. Brake; 44. Torque sensor; 45. First coupling; 46. Universal joint; 47. Second coupling; 48. Load platform spline sleeve; 5. Lifting device; 51. Lifting mounting base; 52. Lifting cylinder; 53. First guide rod; 54. Second guide rod; 55. Universal joint support; 6. Drill rod; 61. Rod body; 62. Male drill rod connecting tool; 63. Female drill rod connecting tool. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] The drill pipe rotation performance testing device of the present invention is described below with reference to the accompanying drawings. Figures 1 to 8 As shown, the drill pipe rotation performance testing device according to an embodiment of the present invention includes a first base 1, a moving device 2, a power platform 3, and a load platform device 4.

[0027] The length direction of the first base 1 is the first direction. The first direction can be the left-right direction. For example, the length direction of the first base 1 is the left-right direction.

[0028] The power test stand 3 includes a second base 31 and a power head 35. The power head 35 is located on the second base 31 and is equipped with a power spline sleeve 36. The power spline sleeve 36 is used to connect with the drill pipe 6 and the power head 35 is used to drive the drill pipe 6 to rotate.

[0029] The load platform device 4 includes a third base 41 and a torque sensor 44. The torque sensor 44 is mounted on the third base 41 and is connected to the load platform spline sleeve 48 via a universal joint 46. The load platform spline sleeve 48 is positioned opposite to the power spline sleeve 36 in a first direction and is used to connect to the drill pipe 6. For example, the load platform spline sleeve 48 is positioned opposite to the power spline sleeve 36 in a left-right direction.

[0030] Specifically, the drill pipe 6 includes a pipe body 61, a drill pipe connecting tool male end 62, and a drill pipe connecting tool female end 63. The drill pipe connecting tool male end 62 and drill pipe connecting tool female end 63 are located on both sides of the pipe body 61. The drill pipe connecting tool male end 62 is assembled in the power spline sleeve 36, and the drill pipe connecting tool female end 63 is assembled in the load frame spline sleeve 48. This allows the power head 35 to drive the drill pipe 6 to rotate. The torque sensor 44 is connected to the drill pipe 6 via a universal joint 46 and the load frame spline sleeve 48, facilitating the measurement of the torsional torque of the drill pipe 6. The universal joint 46 can compensate for coaxial misalignment, thus facilitating the rotation of the torque sensor 44 by the drill pipe 6. For example, the universal joint 46 is a cross-shaped universal joint.

[0031] A moving device 2 is disposed on the first base 1, and the moving device 2 is used to drive at least one of the second base 31 and the third base 41 to move in a first direction. This allows the second base 31 and the third base 41 to move relative to each other in the first direction, thereby facilitating the adaptation to drill rods 6 of different lengths, diameters, and thread specifications, thus improving the applicability of the drill rod rotation performance testing device according to the embodiment of the present invention. For example, the moving device 2 is used to drive at least one of the second base 31 and the third base 41 to move in the left-right direction.

[0032] Therefore, the drill pipe rotation performance testing device according to embodiments of the present invention is suitable for measuring the torque of various drill pipes.

[0033] like Figure 2 As shown, in some embodiments, the mobile device 2 includes a slide rail, a mobile frame 28, and a first driver.

[0034] A slide rail is mounted on the first base 1, and a movable frame 28 is slidably mounted on the slide rail along a first direction. A first driver is connected to the movable frame 28 and can drive the movable frame 28 to move along the first direction. A second base 31 is mounted on the movable frame 28, and a third base 41 is mounted on the first base 1. Thus, the moving device 2 can be used to drive the second base 31 to move in the first direction, thereby driving the power platform 3 to move in the first direction. For example, the movable frame 28 can be slidably mounted on the slide rail in a left-right direction. Alternatively, the second base 31 can be connected to the movable frame 28 via a pin 38. The second base 31 is fixed by a telescopic pin 38, and the second base 31 is a cast steel base, thus giving the second base 31 high torsional stability.

[0035] In some embodiments, the slide rail includes a first guide rail and a second guide rail, which are arranged side by side in a second direction. Both the first and second guide rails have a groove that mates with the movable frame 28. The groove extends along a first direction, and the movable frame 28 is slidably disposed within the groove along the first direction. Specifically, both the first and second guide rails extend along the first direction. The first guide rail includes a lower first guide rail plate 21 and an upper first guide rail plate 23. The upper first guide rail plate 23 is located above the lower first guide rail plate 21 and defines a groove with a stepped groove structure. The second guide rail includes a lower second guide rail plate 22 and a upper second guide rail plate 24. The upper second guide rail plate 24 is located above the lower second guide rail plate 22 and defines a groove with a stepped groove structure. The movable frame 28 is located within two grooves on both sides in the second direction. The second direction can be a front-rear direction; for example, the movable frame 28 is located within two grooves on both sides in the front-rear direction.

[0036] In some embodiments, the first actuator includes a first hydraulic cylinder 26, the fixed portion of which is hinged to a first drive mounting base 25, which is fixed to a first base 1. The telescopic portion of the first hydraulic cylinder 26 is connected (hinged) to a movable frame 28. The telescopic portion of the first hydraulic cylinder 26 can move relative to the fixed portion of the first hydraulic cylinder 26 in a first direction, thereby facilitating the movement of the movable frame 28 in the first direction, and consequently driving the power platform 3 to move in the first direction.

[0037] like Figure 2 As shown, in some embodiments, at least one of the movable frame 28 and the first base 1 is provided with a first sensor, which is used to measure the moving distance of the movable frame 28. Specifically, the first sensor includes a first proximity switch fixing base 27 and a first proximity switch sensing base 29, one of which is disposed on the first base 1 and the other is disposed on the movable frame 28. Specifically, the first proximity switch fixing base 27 is disposed on the first base 1, and the first proximity switch sensing base 29 is disposed on the movable frame 28.

[0038] The proximity switch mounting base (first proximity switch mounting base 27) is used to securely install the proximity switch. Its self-adjusting structure limits the installation position and sensing orientation of the proximity switch, achieving precise positioning of the detection position and providing a fixed reference for distance detection. The proximity switch sensing base (first proximity switch sensing base 29) moves synchronously with the moving part being measured, serving as a sensing trigger target. When the sensing base moves into the sensing range of the proximity switch, the two generate electromagnetic induction. Relying on the positioning reference of the mounting base and the displacement of the sensing base, real-time detection and position determination of the distance between them are achieved, completing the precise measurement of the travel distance. This facilitates the measurement of the moving distance of the moving frame 28 in the first direction, and further facilitates the measurement of the moving distance of the power platform 3 in the first direction.

[0039] like Figure 3 As shown, in some embodiments, the power test stand 3 further includes a power test stand moving part and a second sensor.

[0040] The moving part of the power platform is connected to the second base 31 and the power head 35, and the moving part of the power platform can drive the power head 35 to move in the first direction. This allows the moving part of the power platform to finely adjust the position of the power head 35 in the first direction so that it can be connected to the drill pipe 6.

[0041] In some embodiments, the moving part of the power platform includes an adjusting seat 32, an adjusting plate 33, and a second driver 34. The adjusting seat 32 is disposed on the second base 31, the adjusting plate 33 is movably disposed on the adjusting seat 32 along a first direction, and the second driver 34 can drive the adjusting plate 33 to move in the first direction. Specifically, the adjusting seat 32 is provided with two adjusting slide rails, the adjusting plate 33 has a sliding groove, and the adjusting plate 33 is slidably connected to the two adjusting slide rails on the adjusting seat 32. For example, the second driver 34 is a second hydraulic cylinder, the fixed part of the second driver 34 is disposed on the adjusting seat 32, and the telescopic part of the second driver 34 is connected to the adjusting plate 33.

[0042] The second sensor is used to measure the movement distance of the power head 35. Specifically, the second sensor includes a second proximity switch mounting base 310 and a second proximity switch sensing base 39. One of the second proximity switch mounting base 310 and the second proximity switch sensing base 39 is disposed on the second base 31 or the adjusting base 32, and the other is disposed on the adjusting plate 33 or the power head 35. This facilitates the measurement of the movement distance of the power head 35 in the first direction. For example, the second proximity switch mounting base 310 is disposed on the second base 31, and the second proximity switch sensing base 39 is disposed on the adjusting plate 33.

[0043] like Figure 6As shown, in some embodiments, the load platform device 4 further includes a laser displacement sensor 42, which is used to measure the distance between the third base 41 and the second base 31. Specifically, the laser displacement sensor 42 is disposed on the third base 41. The laser displacement sensor 42 emits a laser beam towards the surface to be measured on the second base 31. After diffuse reflection by the surface, the laser beam is received by the laser displacement sensor 42. The photodetector inside the laser displacement sensor 42 captures the change in the position of the reflected light spot, and the distance between the laser displacement sensor 42 and the surface of the second base 31 is calculated in real time through a built-in algorithm.

[0044] In some embodiments, the load platform device 4 further includes a brake 43, which is mounted on a third base 41. The brake 43 is connected to a torque sensor 44 via a first coupling 45, and the torque sensor 44 is connected to a universal joint 46 via a second coupling 47. This increases the maximum torque that the load platform device 4 can withstand, thereby expanding the measurement range. For example, the brake 43 is a magnetic powder brake. The load platform device 4 can withstand a high torque test of 30,000 Nm.

[0045] like Figure 7 As shown, in some embodiments, the load platform device 4 further includes a lifting device 5, which includes a lifting mounting base 51, a guide portion, a universal joint support portion 55, and a lifting drive. The lifting device 5 is located in a first direction between the power platform 3 and the load platform device 4.

[0046] The lifting and fixing seat 51 is located on the first base 1. Specifically, the lifting and fixing seat 51 is a plate, and the lifting and fixing seat 51 is connected to the first base 1 by bolts.

[0047] A guide section is provided on the lifting mounting base 51 and extends in the vertical direction. Specifically, the guide section includes a first guide rod 53 and a second guide rod 54, which are located on both sides of the lifting actuator. For example, the first guide rod 53 and the second guide rod 54 are located on both sides of the lifting actuator in the second direction (front-back direction).

[0048] Universal joint 46 includes a first part and a second part. The first part is movable relative to the second part. The first part is connected to the load cell spline sleeve 48, and the second part is connected to the torque sensor 44. The opening of the support groove faces upward, and the universal joint support part 55 is located below the universal joint 46. The first part of the universal joint 46 fits into the support groove, and the universal joint support part 55 is slidably connected to the guide part. This facilitates support for the first part of the universal joint 46, thereby reducing axial deviation, facilitating alignment of the shaft center, and simplifying installation.

[0049] In some embodiments, the universal joint support portion 55 has a support groove, which is an arc-shaped groove, to support the first portion of the universal joint 46. The universal joint support portion 55 has two sliding holes, in which a first guide rod 53 and a second guide rod 54 are movably inserted, so that the universal joint support portion 55 is slidably connected to the first guide rod 53 and the second guide rod 54.

[0050] The lifting actuator can drive the universal joint support 55 to move in the vertical direction. Specifically, the lifting actuator is a lifting cylinder 52. The fixed part of the lifting cylinder 52 is provided on the lifting fixed seat 51. The telescopic part of the lifting cylinder 52 is connected to the universal joint support 55 so as to drive the universal joint support 55 to move in the vertical direction.

[0051] like Figure 5 As shown, in some embodiments, the drill pipe 6 rotation performance testing device further includes a drill pipe clamping device 37. The drill pipe clamping device includes a clamp and a clamping driver. The clamp includes jaws for clamping the drill pipe 6, and a third driver is connected to the clamp and drives the jaws to clamp the drill pipe 6. Therefore, when it is necessary to disassemble the drill pipe 6, the clamp can be used to clamp the drill pipe 6 so that it can be removed from the power head 35. After the drill pipe clamping device 37 clamps the drill pipe 6, the power head 35 reverses so that the drill pipe 6 can be easily and automatically detached.

[0052] In some embodiments, the clamp includes a first jaw 374 and a second jaw 375.

[0053] The first jaw 374 and the second jaw 375 are arranged opposite to each other in a second direction. The first jaw 374 and the second jaw 375 are movably mounted on the clamping base 371 along the second direction. The clamping base 371 is mounted on the adjustment seat 32 of the power platform 3. The second direction is perpendicular to the first direction. Specifically, the rods of the first jaw 374 and the second jaw 375 are both cylindrical and slidably connected to the clamping base 371. The clamping portions of the first jaw 374 and the second jaw 375 have opposing arc-shaped grooves to clamp the rod 61 of the drill rod 6. For example, the first jaw 374 and the second jaw 375 are arranged opposite to each other in the front-rear direction, and the first jaw 374 and the second jaw 375 are movably mounted on the clamping base 371 along the front-rear direction.

[0054] The third actuator includes a third hydraulic cylinder 372 and a fourth hydraulic cylinder 373. The third hydraulic cylinder 372 is connected to the first gripper 374 and can drive the first gripper 374 to move in the second direction. The fourth hydraulic cylinder 373 is connected to the second gripper 375 and can drive the second gripper 375 to move in the second direction.

[0055] The drill pipe rotation performance testing device according to embodiments of the present invention, through the automatic adjustment of the power bench 3, quick-change of multi-specification connecting tooling, assisted installation of the lifting device 5, automatic reverse disassembly of the drill pipe clamping device 37, and high torque and high torsional bearing capacity of the load platform device 4, forms a fully automated testing mode of "drill pipe assembly → automatic positioning → precise installation → rotation test → easy disassembly". During the testing process, the device can adapt to drill pipes of different lengths, diameters, and thread specifications, with a maximum test torque of 30,000 Nm. The entire process is automatically controlled by sensors and hydraulic cylinders, significantly reducing manpower input and improving testing efficiency and safety. The automated process greatly improves testing efficiency and saves manpower.

[0056] The drill pipe rotation performance testing device according to an embodiment of the present invention adopts an integrated design of hydraulic cylinder drive, laser displacement sensor positioning, and proximity switch limit. It can automatically adjust the position of the power stand according to the drill pipe length (accuracy ±0.1mm), and is fixed in place by inserting a telescopic pin into the base pin hole, completely replacing manual adjustment and solving the problem of rapid adaptation for drill pipes of different lengths, while avoiding the risk of the stand detaching. Secondly, it features an innovative multi-specification quick-change design for connection fixtures. Multiple sets of male and female connection fixtures are provided, adapting to drill pipes of different diameters and thread specifications through threads. The spline structure enables power transmission, allowing for rapid replacement without equipment modification, overcoming the technical limitation of existing devices that only adapt to a single specification of drill pipe.

[0057] The load platform device uses a high-torque power head and magnetic powder brake, combined with a cast steel T-slot test bench base and telescopic pin fixing structure, which greatly improves the device's torsional resistance and meets the testing requirements of 30,000 Nm high torque, solving the core problem that traditional devices cannot bear high torque.

[0058] The universal joint and spline sleeve of the lifting device load platform automatically align the shaft center of the power head and the spline sleeve of the load platform (error ≤ 0.5mm), reducing the difficulty of drill pipe installation and improving installation efficiency and testing accuracy. Addressing the industry pain point of difficulty in disassembling the drill pipe and spline sleeve under high torque, a combination mechanism of the drill pipe clamping device and the power platform with small-angle reversal is designed to easily detach the drill pipe, avoiding the safety risks and equipment damage associated with manual disassembly. Finally, the entire process is controlled by a host computer with multiple proximity switch limit protections, achieving full automation of the adjustment, installation, testing, and disassembly processes, replacing manual operation and significantly improving testing safety and standardization. For example, the drill pipe rotation performance testing device according to an embodiment of the present invention includes a host computer (controller), which is connected to the drill pipe clamping device 37, the lifting device 5, the moving device 2, the power platform 3, and the load platform device 4.

[0059] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A drill pipe rotation performance testing device, characterized in that, include: A first base, wherein the length direction of the first base is a first direction; A power test stand, comprising a second base and a power head, wherein the power head is disposed on the second base and is provided with a power spline sleeve, the power spline sleeve being used to connect to the drill pipe and the power head being used to drive the drill pipe to rotate; A load table device, comprising a third base and a torque sensor, wherein the torque sensor is disposed on the third base and is connected to the load table spline sleeve via a universal joint, the load table spline sleeve being disposed opposite to the power spline sleeve in the first direction, and the load table spline sleeve being used to connect to the drill pipe. A moving device is disposed on the first base, and the moving device is used to drive at least one of the second base and the third base to move in the first direction.

2. The drill pipe rotation performance testing device according to claim 1, characterized in that, The mobile device includes a slide rail, a mobile frame, and a first driver. The slide rail is disposed on the first base, and the mobile frame is slidably disposed on the slide rail along the first direction. The first driver is connected to the mobile frame and can drive the mobile frame to move along the first direction. The second base is disposed on the movable frame, and the third base is disposed on the first base; At least one of the mobile frame and the first base is provided with a first sensor, which is used to measure the moving distance of the mobile frame.

3. The drill pipe rotation performance testing device according to claim 2, characterized in that, The slide rail includes a first guide rail and a second guide rail, which are arranged side by side in a second direction. Both the first guide rail and the second guide rail have a slide groove that cooperates with the movable frame. The slide groove extends along the first direction, and the movable frame is slidably disposed in the slide groove along the first direction. The first actuator includes a first hydraulic cylinder, the fixed part of the first hydraulic cylinder is hinged to a first drive fixed seat, the first drive fixed seat is fixed on the first base, and the telescopic part of the first hydraulic cylinder is connected to the movable frame. The first sensor includes a first proximity switch mounting base and a first proximity switch sensing base, one of which is disposed on the first base and the other is disposed on the movable frame.

4. The drill pipe rotation performance testing device according to claim 1, characterized in that, The power test bench also includes a power test bench moving part and a second sensor; The power test frame moving part is connected to the second base and the power head, and the power test frame moving part can drive the power head to move in the first direction; The second sensor is used to measure the distance traveled by the power unit.

5. The drill pipe rotation performance testing device according to claim 4, characterized in that, The power platform moving part includes an adjusting seat, an adjusting plate, and a second driver. The adjusting seat is disposed on the second base, and the adjusting plate is movably disposed on the adjusting seat along the first direction. The second driver can drive the adjusting plate to move in the first direction. The second sensor includes a second proximity switch mounting base and a second proximity switch sensing base. One of the second proximity switch mounting base and the second proximity switch sensing base is disposed on the second base or the adjusting base, and the other is disposed on the adjusting plate or the power head.

6. The drill pipe rotation performance testing device according to claim 1, characterized in that, The load platform device also includes a laser displacement sensor, which is used to measure the distance between the third base and the second base; The load platform device also includes a brake, which is located on the third base. The brake is connected to the torque sensor via a first coupling, and the torque sensor is connected to the universal joint via a second coupling.

7. The drill pipe rotation performance testing device according to claim 1, characterized in that, The load platform device further includes a lifting device, the lifting device including... Lifting station; A guide portion is provided on the lifting and fixing seat and extends in the vertical direction; The universal joint support has a support groove. The universal joint includes a first part and a second part. The first part is movable relative to the second part. The first part is connected to the load cell spline sleeve. The second part is connected to the torque sensor. The opening of the support groove faces upward. The universal joint support is located below the universal joint. The first part of the universal joint fits in the support groove. The universal joint support is slidably connected to the guide part. A lifting drive, which can drive the universal joint support to move in the vertical direction.

8. The drill pipe rotation performance testing device according to claim 7, characterized in that, The lifting and fixing seat is located on the first base; The guide portion includes a first guide rod and a second guide rod, which are located on both sides of the lifting driver. The universal joint support portion is slidably connected to the first guide rod and the second guide rod. The lifting drive is a lifting cylinder, the fixed part of the lifting cylinder is provided on the lifting fixed seat, and the telescopic part of the lifting cylinder is connected to the universal joint support part.

9. The drill pipe rotation performance testing device according to any one of claims 1-8, characterized in that, The drill pipe rotation performance testing device also includes a drill pipe clamping device, which includes a clamp and a clamping driver. The clamp includes jaws for clamping the drill pipe, and a third driver is connected to the clamp and drives the jaws to clamp the drill pipe.

10. The drill pipe rotation performance testing device according to claim 9, characterized in that, The clamp includes a first jaw and a second jaw, which are arranged opposite to each other in a second direction. The first jaw and the second jaw are movably disposed on a clamping base along the second direction. The clamping base is disposed on the power platform. The second direction is perpendicular to the first direction. The third actuator includes a third hydraulic cylinder and a fourth hydraulic cylinder. The third hydraulic cylinder is connected to the first gripper and can drive the first gripper to move in the second direction. The fourth hydraulic cylinder is connected to the second gripper and can drive the second gripper to move in the second direction.

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