Drill pipe thickness measuring device

Abstract

The present invention provides a drill pipe body thickness measuring device, which belongs to the technical field of oil and exploration drilling tool production equipment, and includes a mounting frame, a first rotating frame rotatably arranged on the mounting frame, and a probe mounting platform rotatably arranged on the first rotating frame for mounting a detection head, wherein the rotation axis of the first rotating frame and the rotation axis of the probe mounting platform are arranged perpendicularly to each other, and a fixing structure for clamping and fixing the detection head is also arranged on the probe mounting platform. In the drill pipe body thickness measuring device provided by the present invention, the rotation axis of the first rotating frame and the rotation axis of the probe mounting platform are arranged perpendicularly, so that the probe mounting platform can be adjusted in multiple directions, so that the position of the probe of the probe mounting platform can be freely adjusted when the pipe body moves so as to change with the change of the external shape of the pipe body, thereby replacing the manual measurement of the thickness of the pipe body, improving the working efficiency of the pipe body wall thickness measurement, and reducing the quality risks and hidden dangers caused by inadequate detection and operational errors.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum and exploration drilling tool production equipment, and more specifically, relates to a drill pipe body thickness measuring device. Background Art

[0002] Drill pipe is a steel pipe with threads at the rear end, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the well. The purpose of the drill pipe is to transport drilling mud to the drill bit, and to raise, lower or rotate the bottom hole device together with the drill bit. The drill pipe must be able to withstand huge internal and external pressure, twisting, bending and vibration. It is an important equipment in the production and exploration of oil and gas. During the friction welding process of the drill pipe, the wall thickness of the weld between the pipe body and the drill tool joint is an important indicator affecting the quality and life of the drill pipe. At present, the wall thickness of the weld between the pipe body and the drill tool joint of the drill pipe manufacturers is measured manually, which is time-consuming and labor-intensive, and has low work efficiency. In addition, there are quality risks and hidden dangers such as missed inspections and operational errors. Summary of the invention

[0003] The object of the present invention is to provide a drill pipe body thickness measuring device, aiming to solve the problems of low efficiency and quality risk in the existing manual measurement of the wall thickness of the drill pipe welding point.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a drill pipe body thickness measuring device for measuring the thickness of the drill pipe body, comprising a mounting frame, a first rotating frame rotatably arranged on the mounting frame, and a probe mounting platform rotatably arranged on the first rotating frame for mounting a detection head, the rotation axis of the first rotating frame and the rotation axis of the probe mounting platform are arranged perpendicular to each other, and the probe mounting platform is also provided with a fixing structure for clamping and fixing the detection head.

[0005] As another embodiment of the present application, a rotating frame mounting piece is further provided between the first rotating frame and the mounting frame body, and an elastic adaptation mechanism is further provided between the rotating frame mounting piece and the mounting frame body, and the rotating frame mounting piece is installed on the mounting frame body through the elastic adaptation mechanism.

[0006] As another embodiment of the present application, a limit member is further provided on the rotating frame mounting member to prevent the first rotating frame from rotating too much. The limit member is located below the first rotating frame, and the top surface of the limit member is spaced apart from the first rotating frame.

[0007] As another embodiment of the present application, the elastic adaptation mechanism includes a swinging sliding member arranged on the side of the rotating frame mounting member close to the mounting frame body, a swinging guide rod whose two ends are arranged on the mounting frame body and passes through the swinging sliding member, and the mounting frame body is also provided with an elastic member for pushing the swinging sliding member toward the direction close to the tube body.

[0008] As another embodiment of the present application, the rotating frame mounting member is also provided with an elastic ejector pin for preventing the swinging sliding member from swinging too much. The number of the elastic ejector pins is multiple and the multiple elastic ejector pins are evenly distributed on both sides of the swinging guide rod.

[0009] As another embodiment of the present application, the probe mounting platform can be detachably provided with a wear-resistant sleeve, the wear-resistant sleeve is provided with a fitting groove matching the external shape of the tube body, and the probe mounting platform is also provided with a clamping structure for fixing the wear-resistant sleeve.

[0010] As another embodiment of the present application, the clamping structure includes a clamping strip arranged at the bottom of the wear-resistant sleeve and with both ends protruding from the side of the wear-resistant sleeve, a receiving groove arranged on the probe mounting platform for accommodating the clamping strip, and a detachable pressing block arranged on the probe mounting platform for pressing the clamping strip into the receiving groove.

[0011] As another embodiment of the present application, the fixing structure is a clamping block that is removably arranged at the bottom of the probe mounting platform, the clamping block is provided with a clamping hole for accommodating the detection head, the clamping block is also provided with an adjustment groove that passes through the side wall of the clamping hole, and a rotating adjustment member arranged on the clamping block for adjusting the width of the adjustment groove.

[0012] As another embodiment of the present application, the mounting frame includes a first bracket, a second bracket arranged on the first bracket for fixing the first rotating frame, and a horizontal slide arranged on the first bracket for driving the second bracket to slide along the length direction of the tube.

[0013] As another embodiment of the present application, a lifting slide for mounting the first rotating frame is further provided on the side of the second bracket, and a lifting slide for adjusting the height of the lifting slide is further provided between the lifting slide and the second bracket.

[0014] The drill pipe body thickness measuring device provided by the present invention has the beneficial effect that, compared with the prior art, a first rotating frame is rotatably arranged on the mounting frame, and a probe mounting platform is also rotatably arranged on the first rotating frame, and the probe of the thickness measuring instrument is fixed to the probe mounting platform through a fixed structure to measure the wall thickness of the pipe body. In the drill pipe body thickness measuring device of the present invention, the rotating axis of the first rotating frame is vertically arranged with the rotating axis of the probe mounting platform, so that the probe mounting platform can be adjusted in multiple directions, so that the position of the probe of the probe mounting platform can be freely adjusted along with the change of the external shape of the pipe body when the pipe body moves, replacing the manual measurement of the thickness of the pipe body, improving the working efficiency of the pipe body wall thickness measurement, and reducing the quality risks and hidden dangers caused by inadequate detection and operational errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the working state of the drill pipe body thickness measuring device provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the structure of a drill pipe body thickness measuring device provided in an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of a local structure of a drill pipe body thickness measuring device provided in an embodiment of the present invention;

[0019] Figure 4 for Figure 3 The enlarged structural diagram of the middle A part;

[0020] Figure 5 It is a schematic diagram of the exploded structure of the probe mounting platform used in the embodiment of the present invention;

[0021] Figure 6 A schematic diagram of the structure of the elastic adaptation mechanism used in an embodiment of the present invention;

[0022] Figure 7 for Figure 6 A cross-sectional structural schematic diagram of the elastic adaptation mechanism shown in ;

[0023] Figure 8 This is a schematic diagram of the structure of the fixed structure used in an embodiment of the present invention.

[0024] In the figure: 1. mounting frame; 11. first bracket; 12. second bracket; 13. lifting slide plate; 14. lifting slide; 15. horizontal slide; 2. first rotating frame; 21. connecting rod; 3. probe mounting platform; 4. fixing structure; 41. clamping block; 42. clamping hole; 43. adjusting groove; 44. rotating adjusting member; 5. elastic adaptation mechanism; 51. swinging sliding member; 52. swinging guide rod; 53. elastic member; 54. elastic ejector pin; 6. wear-resistant sleeve; 7. limit member; 8. clamping structure; 81. clamping strip; 82. accommodating slide groove; 83. pressing block; 9. rotating frame mounting member; 10. tube body; 100. detection head. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] Please also read Figures 1 to 8 The drill pipe body thickness measuring device provided by the present invention is now described. The drill pipe body thickness measuring device is used to measure the thickness of the drill pipe body, and includes a mounting frame 1, a first rotating frame 2 rotatably arranged on the mounting frame 1, and a probe mounting platform 3 rotatably arranged on the first rotating frame 2 for mounting a detection head. The rotation axis of the first rotating frame 2 and the rotation axis of the probe mounting platform 3 are arranged perpendicular to each other. The probe mounting platform 3 is also provided with a fixing structure 4 for clamping and fixing the detection head.

[0027] Compared with the prior art, the drill pipe body thickness measuring device provided in this embodiment has a first rotating frame 2 rotatably arranged on the mounting frame 1, and a probe mounting platform 3 is also rotatably arranged on the first rotating frame 2, and the probe of the thickness measuring instrument is fixed to the probe mounting platform 3 through a fixing structure 4 to measure the wall thickness of the pipe body. In the drill pipe body thickness measuring device of the present invention, the rotation axis of the first rotating frame 2 is vertically arranged to the rotation axis of the probe mounting platform 3, so that the probe mounting platform 3 can be adjusted in multiple directions, so that the position of the probe of the probe mounting platform 3 can be freely adjusted when the pipe body moves with the change of the external shape of the pipe body, replacing the manual measurement of the thickness of the pipe body, improving the work efficiency of the pipe body wall thickness measurement, and reducing the quality risks and hidden dangers caused by inadequate detection and operational errors.

[0028] In this embodiment, a connecting rod is further provided between the first rotating frame 2 and the mounting frame body 1, one end of the connecting rod is fixedly provided on the mounting frame body 1 or the rotating frame mounting member 9, and a receiving hole for accommodating the other end of the connecting rod is provided on the first rotating frame 2, and the end of the connecting rod is rotatably provided in the receiving hole, so that the first rotating frame 2 can rotate around the axis of the connecting rod. A rotating bearing is also provided between the end of the connecting rod and the receiving hole, so that the rotation of the first rotating frame 2 is more convenient. In addition, a receiving groove is also provided on the first rotating frame 2, and the first rotating frame 2 is C-shaped as a whole, and the probe mounting platform 3 is rotatably provided in the receiving groove of the first rotating frame 2, and rotating rods are respectively provided on both sides of the probe mounting platform 3, and the two rotating rods are provided through the first rotating frame 2 and are rotatably connected with the first rotating frame 2, so that the probe mounting platform 3 can be rotatably provided on the first rotating frame 2, and the two rotating rods are both located on the same straight line and are both perpendicular to the connecting rod, and a rotating bearing is also provided between the rotating rod and the first rotating frame 2, which also makes the rotation between the probe mounting platform 3 and the first rotating frame 2 more flexible and convenient.

[0029] As a specific embodiment of the drill pipe body thickness measuring device provided by the present invention, please refer to Figures 3 to 5 , a rotating frame mounting member 9 is also provided between the first rotating frame 2 and the mounting frame body 1, and an elastic adaptation mechanism 5 is also provided between the rotating frame mounting member 9 and the mounting frame body 1. At this time, the first rotating frame 2 is rotatably connected to the rotating frame mounting member 9, and then the rotating frame mounting member 9 is installed on the mounting frame body 1 through the elastic adaptation mechanism 5. The setting of the elastic adaptation mechanism 5 can push the rotating frame installation, the first rotating frame 2 and the probe mounting platform 3 in the direction close to the tube body through the elastic adaptation mechanism 5 during the process of the detection head measuring the tube body, so that the detection head can always stay close to the tube body. At the same time, the elastic adaptation mechanism 5 can also play a certain buffering role. When the outer diameter (or thickness) of the tube body changes, it can shrink a certain distance to prevent the probe mounting platform 3 from rigidly colliding with the outer wall of the tube body, and prevent the probe mounting platform 3 from being damaged due to rigid collision, so that the use of the probe mounting platform 3 is safer and more reliable.

[0030] In this embodiment, the rotatable frame mounting member 9 is a vertically arranged plate-like structure, the end of the connecting rod between the first rotatable frame 2 and the mounting frame body 1 passes through the rotatable frame mounting member 9, a vertical plane is also arranged on the side of the mounting frame body 1, the elastic adaptation mechanism 5 is arranged in the space between the rotatable frame mounting member 9 and the vertical plane on the mounting frame body 1, and the rotation axis of the first rotatable frame 2 is arranged perpendicular to the rotatable frame mounting member 9.

[0031] As a specific embodiment of the drill pipe body thickness measuring device provided by the present invention, please refer to Figures 3 to 6 The rotating frame mounting member 9 is also provided with a stopper 7 to prevent the first rotating frame 2 from rotating too much, and the stopper 7 is located below the first rotating frame 2, and the top surface of the stopper 7 is spaced from the first rotating frame 2. The stopper 7 can prevent the first rotating frame 2 from rotating further and reversing by abutting against the lower part of the first rotating frame 2 when the first rotating frame 2 rotates too much.

[0032] In this embodiment, a limiting platform is provided on the top of the limiting member 7 and is arranged parallel to the bottom of the first rotating frame 2. The limiting platform is spaced apart from the bottom plane of the first rotating frame 2. The limiting member 7 is detachably mounted on the rotating frame mounting member 9 by fasteners. An arc-shaped adjustment groove 43 through which the fasteners pass is also provided on the body of the limiting member 7, so that the angle of the limiting platform can be adjusted by rotating the limiting member 7, and the distance between the limiting platform and the bottom plane of the first rotating frame 2 can also be adjusted by the arc-shaped adjustment groove 43.

[0033] As a specific embodiment of the drill pipe body thickness measuring device provided by the present invention, please refer to Figure 3 and Figure 6The elastic adaptation mechanism 5 includes a swinging sliding member 51 arranged on the side of the rotating frame mounting member 9 close to the mounting frame body 1, a swinging guide rod 52 with both ends arranged on the mounting frame body 1 and penetrating the swinging sliding member 51, and an elastic member 53 for pushing the swinging sliding member 51 toward the direction close to the tube body is also arranged on the mounting frame body 1. The rotating frame mounting member 9 is fitted onto the outside of the swinging guide rod 52 through the swinging sliding member 51, so that the rotating frame mounting member 9 can rotate around the axial direction of the swinging guide rod 52, so that the detection head has an additional adjustment angle around the vertical direction, so that the adjustment range of the probe mounting platform 3 is larger, and at the same time, an elastic member 53 for pushing the swinging sliding member 51 toward the direction close to the tube body is also arranged on the mounting frame body 1, so that the probe mounting platform 3 can be pushed toward the direction close to the tube body while the detection head is detecting the tube body, so that the detection head can always stay close to the tube body, making the measurement more accurate.

[0034] In this embodiment, two rocker arm mounting plates are provided on the vertical plane of the mounting frame 1, and both ends of the rocker arm 52 are fixed on the rocker arm mounting plates, and the elastic member 53 is a spring sleeved on the rocker guide rod 52, one end of the elastic member 53 abuts against the rocker arm mounting plate and the other end abuts against the lower part of the rocker sliding member 51, and the elastic member 53 is sleeved on the rocker guide rod 52 to make the elastic member 53 more stable.

[0035] As a specific embodiment of the drill pipe body thickness measuring device provided by the present invention, please refer to Figure 3 and Figure 6 The rotating frame mounting member 9 is also provided with an elastic ejector pin 54 for preventing the swinging sliding member 51 from swinging too much. The number of the elastic ejector pins 54 is multiple and the multiple elastic ejector pins 54 are evenly distributed on both sides of the swinging guide rod 52. The elastic ejector pins 54 are respectively arranged on both sides of the swinging guide rod 52 to make the forces on both sides of the rotating frame mounting member 9 more balanced. At the same time, the elasticity of the elastic ejector pins 54 can play a certain limiting role on the rotating frame mounting member 9 when the rotating frame mounting member 9 rotates. In addition, the setting of the elastic ejector pins 54 can also ensure that the rotating frame mounting member 9 automatically returns to a state parallel to the vertical plane when no force is applied.

[0036] In this embodiment, the elastic ejector pin 54 includes a sliding rod provided through the rotating frame mounting member 9, an anti-slip portion provided at one end of the sliding rod near the rotating frame mounting member 9 for preventing the sliding rod from slipping out of the rotating frame mounting member 9, and a clamping end provided at the other end of the sliding rod, and an elastic member 53 for pushing the sliding rod away from the rotating frame mounting member 9 is also provided between the clamping end and the rotating frame mounting member 9. The elastic ejector pin 54 adopts this structure, so that the rotating frame mounting member 9 rotates around the swing guide rod 52, squeezes the clamping end of the sliding rod, causes the sliding rod to slide in the rotating frame mounting member 9, and then causes the elastic member 53 to shrink. When the rotating frame mounting member 9 rotates, the elasticity of the elastic ejector pin 54 can play a certain limiting role on the rotating frame mounting member 9. In addition, the provision of the elastic ejector pin 54 can also ensure that the rotating frame mounting member 9 automatically returns to a state parallel to the vertical plane when no force is applied, making the use of the elastic adaptation mechanism 5 more convenient.

[0037] As a specific embodiment of the drill pipe body thickness measuring device provided by the present invention, please refer to Figures 3 to 5 The probe mounting platform 3 can also be detachably provided with a wear-resistant sleeve 6, and the wear-resistant sleeve 6 is provided with a close-fitting groove matching the external shape of the tube body, and the probe mounting platform 3 is also provided with a clamping structure 8 for fixing the wear-resistant sleeve 6. The provision of the wear-resistant sleeve 6 can make the side of the probe mounting platform 3 close to the tube body more wear-resistant, and at the same time, the provision of the clamping structure 8 can conveniently replace the wear-resistant sleeve 6 according to the size of the tube body, so that the close-fitting groove on the wear-resistant sleeve 6 is more consistent with the circumference of the tube body, so that the wear-resistant sleeve 6 can always be set close to the tube body.

[0038] In this embodiment, the cross section of the wear-resistant sleeve 6 is rectangular, and the wear-resistant sleeve 6 is made of polytetrafluoroethylene material, so that the surface wear resistance of the wear-resistant sleeve 6 is better, and the service life of the wear-resistant sleeve 6 is extended.

[0039] As a specific embodiment of the drill pipe body thickness measuring device provided by the present invention, please refer to Figure 4 and Figure 5 The clamping structure 8 includes a clamping strip 81 disposed at the bottom of the wear-resistant sleeve 6 and protruding from the side of the wear-resistant sleeve 6 at both ends, a receiving slide 82 disposed on the probe mounting platform 3 for installing and accommodating the clamping strip 81, and a detachable pressing block 83 disposed on the probe mounting platform 3 for pressing the clamping strip 81 into the receiving slide 82. When installing the wear-resistant sleeve 6, first install the clamping strip 81 on the ground of the wear-resistant sleeve 6 into the receiving slide 82, position the wear-resistant sleeve 6 through the receiving slide 82 and the clamping strip 81, and then press and fix the portion of the clamping strip 81 protruding from the side of the wear-resistant sleeve 6 into the receiving slide 82 through the pressing block 83, thereby completing the installation and fixation of the wear-resistant sleeve 6, making the removal of the wear-resistant sleeve 6 faster and more convenient.

[0040] In this embodiment, the clamping block 83 includes a clamping portion for clamping the clamping strip 81, and a mounting portion for fixing the clamping portion to the side of the probe mounting platform 3. The mounting portion is fixed to the side of the probe mounting platform 3 by a fastener. The side of the probe mounting platform 3 is also provided with a groove for accommodating the mounting portion. The clamping portion is arranged on the top of the mounting portion and forms a T-shaped clamping block 83 as a whole with the mounting portion.

[0041] As a specific embodiment of the drill pipe body thickness measuring device provided by the present invention, please refer to Figure 5 and Figure 8 The fixing structure 4 is a clamping block 41 disposed at the bottom of the probe mounting platform 3 for disassembly. The clamping block 41 is provided with a clamping hole 42 for accommodating the probe head. The clamping block 41 is also provided with an adjustment slot 43 penetrating the side wall of the clamping hole 42, and a rotating adjustment member 44 disposed on the clamping block 41 for adjusting the width of the adjustment slot 43. The clamping block 41 is fixed to the bottom of the probe mounting platform 3 by fasteners. When the probe head is installed, the probe head is first inserted into the clamping hole 42 on the clamping block 41, and then the adjusting member 44 is turned to reduce the spacing of the adjustment slot 43 and the diameter of the clamping hole 42, thereby tightening and fixing the probe head, making the fixation of the probe head more firm and reliable.

[0042] In this embodiment, a receiving groove for receiving the clamping block 41 is also provided at the bottom of the probe mounting platform 3. After the clamping block 41 clamps the detection head, the clamping block 41 is placed in the receiving groove, and then the clamping block 41 is pressed and fixed in the receiving groove by a probe fixing block provided at the mouth of the receiving groove to complete the installation and fixation of the clamping block 41. The probe fixing block is a rectangular block having one end rotatably provided at the bottom of the probe mounting platform 3 and rotatable on a plane parallel to the bottom of the probe mounting platform 3.

[0043] As a specific embodiment of the drill pipe body thickness measuring device provided by the present invention, please refer to Figure 1 and Figure 2The mounting frame 1 includes a first bracket 11, a second bracket 12 arranged on the first bracket 11 for fixing the first rotating frame 2, and a horizontal slide 15 arranged on the first bracket 11 for driving the second bracket 12 to slide along the length direction of the pipe. At this time, the first rotating frame 2 and the probe mounting platform 3 are both arranged on the side of the second bracket 12. The mounting frame 1 with this structure can adjust the position of the second bracket 12 through the horizontal slide 15, so that the probe mounting platform 3, i.e., the detection head, can move along the length direction of the pipe body, and can achieve continuous measurement of the wall thickness of the pipe body. The stroke of the horizontal slide 15 is 300-400mm. The horizontal slide 15 includes two linear guides, a sliding platform slidably arranged on the two linear guides for mounting the second bracket 12, and a driving screw rotatably arranged on the first bracket 11 and penetrating the sliding platform and threadedly connected to the sliding platform. The driving screw is driven to rotate by a motor, and the sliding platform is driven to slide along the linear guide by the rotation of the driving screw, so that the movement of the second bracket 12 is more stable and reliable.

[0044] As a specific embodiment of the drill pipe body thickness measuring device provided by the present invention, please refer to Figure 3 , the side of the second bracket 12 is also provided with a lifting slide 13 for installing the first rotating frame 2, and a lifting slide 14 for adjusting the height of the lifting slide 13 is also provided between the lifting slide 13 and the second bracket 12. At this time, the elastic adaptation mechanism 5 is arranged between the rotating frame mounting member 9 and the lifting slide 13. The setting of the lifting slide 13 can adjust the position of the probe mounting platform 3, i.e., the detection head, in height through the lifting slide 14, so that the detection head can be conveniently lifted and lowered according to the position of the pipe body, making the measurement of the wall thickness of the pipe body simpler and more convenient. The lifting slide 14 includes two linear slide rails arranged on the side of the second bracket 12, and a sliding block arranged on the side of the lifting slide 13. The sliding block can be slidably arranged on the linear slide rail and can slide along the length direction of the linear slide rail. The second bracket 12 is also provided with a pushing cylinder for pushing the lifting slide 13 to slide along the length direction of the linear slide rail, so that the movement of the lifting slide 13 is faster.

[0045] As a specific embodiment of the drill pipe body thickness measuring device provided by the present invention, please refer to Figure 1 and Figure 2 , an oil receiving groove is also provided on the first bracket 11, and a plurality of oil baffles are also provided on the rotating frame mounting member 9 and the lifting slide plate 13. The pipe thickness measuring device can start working at the same time as the pipe ultrasonic flaw detection, and share an oil circuit and a coupling oil circulation device with the ultrasonic flaw detection device. When measuring, the ultrasonic flaw detection device is located above the pipe body, and the pipe thickness measuring device is located below the pipe body. At this time, the oil receiving groove can contain the coupling oil, and the setting of the oil baffle can prevent the coupling oil from flowing into the elastic adaptation mechanism 5 or other important mechanisms, making the use of the pipe thickness measuring device safer and more reliable.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drill pipe body thickness measuring device, characterized in that: The invention comprises a mounting frame, a first rotating frame rotatably arranged on the mounting frame, and a probe mounting platform rotatably arranged on the first rotating frame for mounting a detection head, wherein the rotation axis of the first rotating frame and the rotation axis of the probe mounting platform are arranged perpendicular to each other, and the probe mounting platform is also provided with a fixing structure for clamping and fixing the detection head; The rotation axis of the first rotating frame is arranged perpendicularly to the rotation axis of the probe mounting platform, so that the probe mounting platform can be adjusted in multiple directions, so that the position of the probe of the probe mounting platform can be freely adjusted as the external shape of the tube body changes when the tube body moves; A rotating frame mounting piece is further provided between the first rotating frame and the mounting frame body, an elastic adaptation mechanism is further provided between the rotating frame mounting piece and the mounting frame body, the rotating frame mounting piece is installed on the mounting frame body through the elastic adaptation mechanism, and a connecting rod is further provided between the first rotating frame and the mounting frame body; The elastic adaptation mechanism includes a swinging sliding member arranged on the side of the rotating frame mounting member close to the mounting frame body, a swinging guide rod with two ends arranged on the mounting frame body and penetrating the swinging sliding member, and an elastic member for pushing the swinging sliding member toward the direction close to the tube body is also arranged on the mounting frame body; The rotating frame mounting member is also provided with an elastic ejector pin for preventing the swinging sliding member from swinging at an excessively large angle. The number of the elastic ejector pins is multiple and the multiple elastic ejector pins are evenly distributed on both sides of the swinging guide rod.

2. The drill pipe body thickness measuring device according to claim 1, characterized in that: The rotating frame mounting member is also provided with a limiting member to prevent the first rotating frame from rotating at an excessively large angle. The limiting member is located below the first rotating frame, and a top surface of the limiting member is spaced apart from the first rotating frame.

3. The drill pipe body thickness measuring device according to claim 1, characterized in that: The probe mounting platform can also be detachably provided with a wear-resistant sleeve, the wear-resistant sleeve is provided with a close-fitting groove matching the external shape of the tube body, and the probe mounting platform is also provided with a clamping structure for fixing the wear-resistant sleeve.

4. The drill pipe body thickness measuring device according to claim 3, characterized in that: The clamping structure includes a clamping strip arranged at the bottom of the wear-resistant sleeve and with both ends protruding from the side of the wear-resistant sleeve, a receiving slide groove arranged on the probe mounting platform for accommodating the clamping strip, and a detachable pressing block arranged on the probe mounting platform for pressing the clamping strip into the receiving slide groove.

5. The drill pipe body thickness measuring device according to claim 1, characterized in that: The fixing structure is a clamping block that is disassembled and arranged at the bottom of the probe mounting platform. The clamping block is provided with a clamping hole for accommodating the detection head. The clamping block is also provided with an adjustment groove that passes through the side wall of the clamping hole, and a rotating adjustment member that is arranged on the clamping block and is used to adjust the width of the adjustment groove.

6. The drill pipe body thickness measuring device according to claim 1, characterized in that: The mounting frame includes a first bracket, a second bracket arranged on the first bracket for fixing the first rotating bracket, and a horizontal slide arranged on the first bracket for driving the second bracket to slide along the length direction of the tube.

7. The drill pipe body thickness measuring device according to claim 6, characterized in that: A lifting slide plate for mounting the first rotating frame is also provided on the side of the second bracket, and a lifting slide platform for adjusting the height of the lifting slide plate is also provided between the lifting slide plate and the second bracket.

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