Oil drill rod joint internal thread standoff measuring device
By designing a internal thread measuring device for oil drill pipe joints that include arc-shaped placement grooves, threaded rods and digital micrometers, the problems of low accuracy and cumbersome operation of traditional measurement methods are solved, and higher measurement accuracy and efficiency are achieved.
Patent Information
- Application Number
- CN202421126017.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The traditional oil drill pipe joint internal thread tight distance measurement methods have problems such as low measurement accuracy, cumbersome operation and low measurement efficiency, resulting in inaccurate measurement data.
A measuring device including a base, mounting seat, movable seat, arc-shaped placement groove, threaded rod, adjustment head, digital display micrometer and display screen is designed. The workpiece is fixed through arc-shaped placement groove, and the threaded rod and adjustment head are used to drive movement. The seat and support frame move, the pointer and moving fingers are fixed to the threads, reducing reading errors in the naked eye, and displaying measurement data through the display screen.
It improves the accuracy of measuring the tight distance between the internal thread of the oil drill pipe joint, reduces the reading error of the naked eye, and enhances the measurement efficiency and accuracy.
Smart Images
Figure CN222279612U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil drilling, in particular to a device for measuring the tight distance of internal threads of an oil drill pipe joint. Background Art
[0002] In the oil drilling industry, the drill pipe joint is a key component for connecting the drill pipe, and the tightness of its internal threads plays a vital role in the stability and sealing of the drill pipe. With the continuous development of oil drilling technology, the measurement accuracy and efficiency requirements for the tightness of the internal threads of the drill pipe joint are increasing.
[0003] Traditional measurement methods usually use tools such as vernier calipers and micrometers for manual measurement. This method has problems such as low measurement accuracy, cumbersome operation, and low measurement efficiency, and cannot meet the high requirements of the modern oil drilling industry for drill pipe joint performance.
[0004] Most existing measuring devices rely on manual handheld operation. Especially when measuring pitch, these devices often find it difficult to stably fix the measuring tool, so shaking is prone to occur during the measurement process. This shaking will directly affect the accuracy of the measured data. Since the readings of measuring tools such as micrometers are relatively fine and small in size, errors are prone to occur when reading with the naked eye. This visual inaccuracy will further increase the error range of the measured value, thereby affecting the accuracy of the final measurement result. Utility Model Content
[0005] The utility model aims to provide a device for measuring the close distance of internal threads of a petroleum drill pipe joint, which has the characteristics of measuring accuracy and reducing the error of naked eye reading.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for measuring the tight pitch of internal threads of a petroleum drill pipe joint, comprising a base and a mounting seat fixedly mounted on the top of the base, a movable seat movably mounted above the base, an arc-shaped placement groove is opened on the upper surface of the movable seat, a workpiece for measurement is placed on the top of the arc-shaped placement groove, a first threaded rod is rotatably mounted on the top of the base, a first adjusting head is fixedly mounted on the top of the first threaded rod, the first threaded rod is threadedly sleeved with the movable seat, a movable block is movably mounted above the mounting seat, a support frame is fixedly mounted on the top of the movable block, a digital micrometer body is fixedly mounted on one end of the support frame away from the movable block, a fixed pointer is fixedly mounted on one end of the digital micrometer body, a movable pointer corresponding to the fixed pointer is provided above the digital micrometer body, and a display screen for displaying measurement data is provided in front of the digital micrometer body.
[0007] In order to facilitate vertical adjustment, as a preferred embodiment of the utility model of a device for measuring the tight distance of internal threads of a petroleum drill pipe joint, four fixed columns are fixedly installed on the top of the base, and the fixed columns are slidably installed with the movable seat.
[0008] For the convenience of fixation, as a preferred device for measuring the close pitch of internal threads of a petroleum drill pipe joint of the utility model, a clamping cover for positioning the workpiece is provided above the movable seat, and a rubber block that is in pressure contact with the workpiece is fixedly installed at the bottom of the clamping cover.
[0009] In order to facilitate positioning and fixing, as a preferred device for measuring the tight distance of internal threads of a petroleum drill pipe joint of the utility model, two movable columns are fixedly installed on the bottom of the clamping cover, the movable columns are slidably sleeved with the movable seat, and the outer side of the movable columns is sleeved with a spring.
[0010] In order to facilitate horizontal adjustment, as a preferred device for measuring the tight distance of the internal threads of a petroleum drill pipe joint of the utility model, two support columns are fixedly installed on the inner side of the mounting seat, a second threaded rod is rotatably arranged on the inner side of the mounting seat, a second adjustment head is fixedly installed on one end of the second threaded rod, and the second threaded rod is located between the two support columns.
[0011] In order to facilitate adjustment, as a preferred embodiment of the device for measuring the tight distance of internal threads of a petroleum drill pipe joint of the utility model, the support column is slidably sleeved with the movable block, and the movable block is threadedly sleeved with the second threaded rod.
[0012] In order to facilitate alignment measurement, as a preferred embodiment of the utility model of a device for measuring the tight spacing of internal threads of a petroleum drill pipe joint, the main body of the digital micrometer is located below the movable seat, and the fixed pointer and the movable pointer both correspond to the workpiece.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] By rotating the first adjusting head to drive the first threaded rod to rotate, the movable seat moves downward along the fixed column, so that the workpiece and the fixed pointer and the moving pointer are brought closer. By rotating the second adjusting head to drive the second threaded rod to rotate, the movable block can drive the support frame to move, so that the support frame drives the digital micrometer body and the fixed pointer to move, so that the fixed pointer can face a thread outside the workpiece. Then, by rotating the knob corresponding to the moving pointer, the position of the moving pointer is adjusted so that the moving pointer faces the adjacent thread outside the workpiece. The measured data can be displayed on the display screen, thereby reducing the error of the staff viewing the readings with the naked eye. By fixing the measuring device, the accuracy of the measuring device in measuring the close distance of the workpiece threads can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1This is a right-side top view of the three-dimensional structure of the utility model;
[0016] Figure 2 This is a left-side top view of the three-dimensional structure of the utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the utility model from the rear top view;
[0018] Figure 4 This is a partial structural diagram of the utility model.
[0019] In the figure: 1. base; 2. mounting seat; 3. movable seat; 4. fixed column; 5. clamping cover; 6. rubber block; 7. movable column; 8. first threaded rod; 9. first adjusting head; 10. digital micrometer body; 11. workpiece; 12. spring; 13. arc-shaped placement groove; 14. support column; 15. second threaded rod; 16. second adjusting head; 17. movable block; 18. support frame; 19. fixed pointer; 20. moving pointer; 21. display screen. DETAILED DESCRIPTION
[0020] See also Figures 1 to 4 A device for measuring the tight pitch of internal threads of a petroleum drill pipe joint comprises a base 1, a mounting seat 2 fixedly mounted on the top of the base 1, a movable seat 3 movably mounted on the top of the base 1, an arc-shaped placement groove 13 is provided on the upper surface of the movable seat 3, a workpiece 11 for measurement is placed on the top of the arc-shaped placement groove 13, a first threaded rod 8 is rotatably mounted on the top of the base 1, a first adjusting head 9 is fixedly mounted on the top of the first threaded rod 8, the first threaded rod 8 is threadedly sleeved with the movable seat 3, a movable block 17 is movably mounted on the top of the mounting seat 2, a support frame 18 is fixedly mounted on the top of the movable block 17, a digital micrometer body 10 is fixedly mounted on one end of the support frame 18 away from the movable block 17, a fixed pointer 19 is fixedly mounted on one end of the digital micrometer body 10, a movable pointer 20 corresponding to the fixed pointer 19 is provided on the top of the digital micrometer body 10, and a display screen 21 for displaying measurement data is provided in front of the digital micrometer body 10.
[0021] In the present embodiment: by setting the arc-shaped placement groove 13, the workpiece 11 to be measured can be placed in the arc-shaped placement groove 13, and the first threaded rod 8 is driven to rotate by rotating the first adjustment head 9, so that the movable seat 3 moves downward along the fixed column 4, and the adjacent threads outside the workpiece 11 are approached by the fixed pointer 19 and the moving pointer 20, and then the use of the digital display micrometer body 10 can display the accurate measured value through the display screen 21, which effectively reduces the error caused by the naked eye reading.
[0022] As a technical optimization solution of the utility model, four fixed columns 4 are fixedly installed on the top of the base 1, and the fixed columns 4 are slidably installed with the movable seat 3.
[0023] In this embodiment, four fixing columns 4 are fixedly installed on the top of the base 1 to facilitate the stable movement of the movable seat 3 along the fixing columns 4 in the vertical direction.
[0024] As a technical optimization solution of the utility model, a clamping cover 5 for positioning the workpiece 11 is provided above the movable seat 3, and a rubber block 6 that is in pressure contact with the workpiece 11 is fixedly installed at the bottom of the clamping cover 5; two movable columns 7 are fixedly installed at the bottom of the clamping cover 5, and the movable columns 7 are slidably sleeved with the movable seat 3, and a spring 12 is sleeved on the outer side of the movable column 7.
[0025] In this embodiment: a rubber block 6 is fixedly installed at the bottom of the clamping cover 5 and is in pressure contact with the workpiece 11, so that the movable column 7 can drive the clamping cover 5 to move downward through the elastic action of the spring 12, so that the rubber block 6 can squeeze and fix the workpiece 11, ensuring the stability of the workpiece 11 placed in the arc-shaped placement groove 13.
[0026] As a technical optimization solution of the utility model, two support columns 14 are fixedly installed on the inner side of the mounting seat 2, and a second threaded rod 15 is rotatably installed on the inner side of the mounting seat 2. A second adjusting head 16 is fixedly installed on one end of the second threaded rod 15, and the second threaded rod 15 is located between the two support columns 14; the support columns 14 are slidably sleeved with the movable block 17, and the movable block 17 is threadedly sleeved with the second threaded rod 15.
[0027] In the present embodiment: a second adjusting head 16 is fixedly installed at one end of the second threaded rod 15, so that the second threaded rod 15 can be rotated by rotating the second adjusting head 16, thereby driving the corresponding movable block 17 to slide horizontally along the support column 14, so that the support frame 18 can be driven to move by the movable block 17, so that the digital micrometer body 10 fixedly installed at one end of the support frame 18 moves, and the fixed pointer 19 is adjusted to align with the external thread of the workpiece 11, and the knob corresponding to the movable pointer 20 is rotated to align with the adjacent thread on the outside of the workpiece 11, so as to facilitate the measurement operation.
[0028] As a technical optimization solution of the utility model, the main body 10 of the digital micrometer is located below the movable seat 3, and the fixed pointer 19 and the movable pointer 20 both correspond to the workpiece 11.
[0029] In this embodiment, the fixed pointer 19 and the moving pointer 20 both correspond to the workpiece 11 , so that the adjacent threads outside the workpiece 11 can be aligned by the fixed pointer 19 and the moving pointer 20 , and the measurement reading can be taken by the digital micrometer body 10 .
[0030] Working principle: When in use, first lift the clamping cover 5 to place the workpiece 11 in the arc-shaped placement groove 13, loosen the clamping cover 5, and then under the elastic action of the spring 12, the rubber block 6 at the bottom of the clamping cover 5 is in contact with and squeezed with the workpiece 11 to fix the workpiece 11, and then the first adjusting head 9 is driven to rotate the first threaded rod 8 to make the movable seat 3 move downward along the fixed column 4, and the adjacent threads on the outside of the workpiece 11 are approached by the fixed pointer 19 and the moving pointer 20, and then the second adjusting head 16 is driven to rotate the second threaded rod 15, thereby driving the corresponding movable block 17 to slide horizontally along the support column 14, so that the support frame 18 can be driven to move through the movable block 17, so that the digital micrometer body 10 fixedly installed at one end of the support frame 18 moves, adjust the fixed pointer 19 to align with the external thread of the workpiece 11, and then align it with the adjacent threads on the outside of the workpiece 11 by turning the corresponding knob of the moving pointer 20, display the measured value on the display screen 21, and read the value.
[0031] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of various parts adopt the conventional means such as mature rivets and welding in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. All electrical equipment in the utility model are powered by an external power supply.
[0032] The above are only preferred embodiments of the present invention and are 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 device for measuring the tight distance of internal threads of a petroleum drill pipe joint, comprising a base (1) and a mounting seat (2) fixedly mounted on the top of the base (1), characterized in that: A movable seat (3) is movably mounted above the base (1), an arc-shaped placement groove (13) is provided on the upper surface of the movable seat (3), a workpiece (11) for measurement is placed on the top of the arc-shaped placement groove (13), a first threaded rod (8) is rotatably mounted on the top of the base (1), a first adjustment head (9) is fixedly mounted on the top of the first threaded rod (8), the first threaded rod (8) is threadedly sleeved with the movable seat (3), and a movable block is movably mounted above the mounting seat (2) (17), a support frame (18) is fixedly mounted on the top of the movable block (17), a digital micrometer body (10) is fixedly mounted on one end of the support frame (18) away from the movable block (17), a fixed pointer (19) is fixedly mounted on one end of the digital micrometer body (10), a movable pointer (20) corresponding to the fixed pointer (19) is provided above the digital micrometer body (10), and a display screen (21) for displaying measurement data is provided in front of the digital micrometer body (10).
2. The device for measuring the internal thread spacing of a petroleum drill pipe joint according to claim 1, characterized in that: Four fixed columns (4) are fixedly mounted on the top of the base (1), and the fixed columns (4) are slidably mounted on the movable seat (3).
3. The device for measuring the internal thread spacing of a petroleum drill pipe joint according to claim 1, characterized in that: A clamping cover (5) for positioning the workpiece (11) is provided above the movable seat (3), and a rubber block (6) for pressing against the workpiece (11) is fixedly mounted on the bottom of the clamping cover (5).
4. The device for measuring the internal thread spacing of a petroleum drill pipe joint according to claim 3, characterized in that: Two movable columns (7) are fixedly mounted on the bottom of the clamping cover (5); the movable columns (7) are slidably sleeved with the movable seat (3); and a spring (12) is sleeved on the outer side of the movable column (7).
5. The device for measuring the internal thread spacing of a petroleum drill pipe joint according to claim 1, characterized in that: Two support columns (14) are fixedly mounted on the inner side of the mounting seat (2), a second threaded rod (15) is rotatably mounted on the inner side of the mounting seat (2), a second adjustment head (16) is fixedly mounted on one end of the second threaded rod (15), and the second threaded rod (15) is located between the two support columns (14).
6. The device for measuring the internal thread spacing of a petroleum drill pipe joint according to claim 5, characterized in that: The support column (14) is slidably sleeved with the movable block (17), and the movable block (17) is threadedly sleeved with the second threaded rod (15).
7. The device for measuring the internal thread spacing of a petroleum drill pipe joint according to claim 1, characterized in that: The digital micrometer body (10) is located below the movable seat (3), and the fixed pointer (19) and the movable pointer (20) both correspond to the workpiece (11).