A wireless MWD calibrating platform

Abstract

The utility model discloses a wireless while drilling surveying inclinometer check table, including the clamping seat, the inner chamber of clamping seat is symmetrically installed with two groups of slidable clamping block, two groups of clamping block opposite side all are designed as V type locating surface, constitute V type centering structure, the one side of each clamping block all is installed with a group of sliding block, and the sliding block can slide along the slide groove of clamping seat one side opening, and cooperate gear drive assembly to realize reverse synchronous movement, can realize the centering clamping and loosening action of surveying inclinometer, the utility model V type centering structure can be automatic centering, ensure that surveying inclinometer axle and check reference coincide, improve check precision, gear drive realizes reverse synchronous movement, and clamping force is even stable, avoids the damage of instrument due to uneven stress, realizes the automation clamping and loosening through gear drive assembly, simplifies the operation process, reduces the time of assembling and disassembling, improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of calibration platform technology, specifically a calibration platform for a wireless drilling inclinometer. Background Technology

[0002] In engineering fields such as oil and gas drilling and mineral exploration, wireless measurement-while-drilling (MWD) instruments are key equipment for real-time monitoring of wellbore trajectory parameters. Their measurement accuracy directly affects construction safety and project quality, so their performance needs to be calibrated regularly using a dedicated calibration bench.

[0003] Existing inclinometer calibration stands typically use a bolt-tightening clamping structure to fix the instrument. This traditional fixing method has significant technical limitations: since the inclinometer shell is mostly cylindrical, it is difficult to achieve precise centering during bolt tightening, often resulting in clamping misalignment. This causes the calibration reference to not coincide with the instrument axis, directly affecting the calibration accuracy of parameters such as angle and azimuth. The clamping force applied by the bolts is difficult to control evenly. Over-tightening can easily cause deformation of the instrument shell or damage to internal precision components, while insufficient clamping force will cause loosening during calibration, leading to fluctuations in measurement data. Therefore, it is necessary to design a wireless drilling inclinometer calibration stand to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a wireless calibration platform for a drilling rig, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a calibration platform for a wireless inclinometer while drilling, including a cladding base. Two sets of slidable cladding blocks are symmetrically installed in the inner cavity of the cladding base. The opposite sides of the two sets of cladding blocks are designed with V-shaped positioning surfaces to form a V-shaped centering structure. A set of sliders is installed on one side of each set of cladding blocks. The sliders can slide along a groove opened on one side of the cladding base and cooperate with a gear drive assembly to achieve reverse synchronous movement, thereby realizing the centering, clamping, and releasing actions of the inclinometer.

[0006] Preferably, the gear drive assembly includes two sets of racks, gears, a first motor, and a first mounting base. Each of the two sets of sliders has a set of racks integrally formed on opposite sides. Both sets of racks mesh with the gears. The gears are connected to the output end of the first motor. The first motor is fixedly mounted through a set of the first mounting base.

[0007] Preferably, a second mounting base is installed on the side of the card holder away from the first mounting base, and the three together constitute a complete support assembly. Two sets of rotating rods are symmetrically installed on the outer sides of the first mounting base and the second mounting base. Both sets of rotating rods are movably connected to the support member and are driven by the second drive assembly to rotate the support assembly.

[0008] Preferably, the rotating rod connected to the first mounting base and the limiting rod connected to the output end of the second motor are connected by a limiting plug-in connection, and the second motor is fixed to one side of the support member through the third mounting base.

[0009] Preferably, the support includes columns, a first base, and a second base. The top ends of the two sets of columns are movably connected to the two sets of rotating rods, respectively. A third mounting seat is installed on the outer side of one set of columns. The bottom ends of the two sets of columns are welded and fixed to the first base. The first base and the second base are connected by a rotating joint and can be angle-locked by a locking component.

[0010] Preferably, the locking assembly includes a positioning seat, a positioning rod, and positioning holes. The positioning seat is installed on the outer wall of the first base. The positioning seat and the positioning rod are connected by a plug-in connection. The positioning rod can be inserted into the positioning holes opened on the second base. Several sets of positioning holes are evenly distributed along the circumference.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a V-shaped centering structure that can automatically center the instrument, ensuring that the inclinometer axis coincides with the calibration benchmark, thereby improving calibration accuracy. The gear drive enables reverse synchronous movement, resulting in uniform and stable clamping force, which avoids damage to the instrument due to uneven force. The gear drive assembly enables automated clamping and loosening, simplifying the operation process, reducing loading and unloading time, and improving work efficiency.

[0012] This invention employs a gear and rack meshing transmission, which provides high transmission precision and ensures the accuracy of the synchronous reverse movement of the two sets of sliders, improving the accuracy of centering and clamping. The rack and slider are integrally formed, reducing assembly gaps, enhancing the overall integrity and stability of the structure, and lowering the failure rate. The first motor provides power, realizing automated drive, replacing traditional manual operation, saving manpower, and improving operating efficiency. The first mounting base fixes the first motor, ensuring the stability of the motor during operation, avoiding the impact of vibration on the transmission effect, and extending the service life of the equipment.

[0013] This invention utilizes a second motor to drive a rotating rod, enabling automated rotation of the support assembly. This facilitates adjustment of the inclinometer's calibration angle and enhances operational flexibility. The rotating rod and the limiting rod employ a limit plug-in connection, ensuring stable power transmission while facilitating disassembly and maintenance. The rotating joint connecting the first and second bases, along with a locking assembly, allows for flexible adjustment and stable locking of the overall angle of the support structure, adapting to different calibration scenarios. The column is welded and fixed to the first base, ensuring the overall rigidity of the support structure and providing a stable foundation for the rotation and angle adjustment of the support assembly.

[0014] This utility model adopts a pluggable positioning rod, which is simple and convenient to operate, can quickly lock and unlock, improve the efficiency of angle adjustment, and the positioning holes are evenly distributed around the circumference, providing multiple fixed angle options to meet the angle positioning needs in different scenarios and enhance applicability. The positioning seat supports and guides the positioning rod, ensuring the accuracy and stability of the positioning rod when inserted into the positioning hole. The structure is simple, consisting of a positioning seat, positioning rod and positioning hole, with few parts, easy to manufacture and maintain, and reduced cost. Attached Figure Description

[0015] Figure 1 This is a right front exploded half-sectional view of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A; Figure 3 This is an exploded left front view of the overall structure of this utility model; Figure 4 This is a front right view of the overall structure of this utility model.

[0016] In the diagram: 1. Card holder; 2. Card block; 3. Slider; 4. Slide groove; 5. Rack; 6. Gear; 7. First motor; 8. First mounting base; 9. Second mounting base; 10. Rotating rod; 11. Second motor; 12. Limiting rod; 13. Third mounting base; 14. Column; 15. First base; 16. Second base; 17. Positioning seat; 18. Positioning rod; 19. Positioning hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1 Please refer to Figure 1-4 As shown, this utility model provides a calibration platform for a wireless inclinometer while drilling, including a calibrator 1. Two sets of slidable calibrators 2 are symmetrically installed in the inner cavity of the calibrator 1. The opposite sides of the two sets of calibrators 2 are designed with V-shaped positioning surfaces to form a V-shaped centering structure. A set of sliders 3 is installed on one side of each set of calibrators 2. The sliders 3 can slide along the grooves 4 opened on one side of the calibrator 1 and cooperate with the gear drive assembly to achieve reverse synchronous movement, which can realize the centering clamping and releasing action of the inclinometer.

[0019] The gear drive assembly drives two sets of sliders 3 to move synchronously in opposite directions along the slide groove 4 of the card holder 1. The sliders 3 drive the card blocks 2 to move synchronously. The V-shaped centering structure formed by the V-shaped positioning surfaces on opposite sides of the two sets of card blocks 2 is used to achieve the centering clamping or loosening action of the inclinometer.

[0020] The V-shaped centering structure can automatically center the instrument, ensuring that the inclinometer axis coincides with the calibration benchmark, thus improving calibration accuracy. The gear drive enables reverse synchronous movement, and the clamping force is uniform and stable, avoiding damage to the instrument due to uneven force. The gear drive assembly enables automated clamping and loosening, simplifying the operation process, reducing loading and unloading time, and improving work efficiency.

[0021] Specifically, the gear drive assembly includes two sets of racks 5, gears 6, a first motor 7, and a first mounting base 8. A set of racks 5 is integrally formed on the opposite side of each of the two sets of sliders 3. Both sets of racks 5 mesh with gears 6. Gears 6 are connected to the output end of the first motor 7. The first motor 7 is fixedly mounted through a set of first mounting bases 8.

[0022] After the first motor 7 starts, its output end drives the gear 6 to rotate. Since both sets of racks 5 mesh with the gear 6, the rotation of the gear 6 will drive the two sets of racks 5 to move in opposite directions synchronously. Because the racks 5 and the slider 3 are integrally formed, the movement of the racks 5 drives the slider 3 to slide synchronously in opposite directions along the slide groove 4, thereby realizing the centering clamping and releasing action of the clamp 2. The first motor 7 is fixed by the first mounting base 8 to ensure the stability of the driving process.

[0023] The gear and rack meshing transmission provides high transmission precision, ensuring the accuracy of the synchronous reverse movement of the two sets of sliders 3, improving the centering and clamping accuracy. The rack 5 and slider 3 are integrally formed, reducing assembly gaps, enhancing the overall integrity and stability of the structure, and lowering the failure rate. The first motor 7 provides power, realizing automated drive, replacing traditional manual operation, saving manpower, and improving operating efficiency. The first mounting base 8 fixes the first motor 7, ensuring the stability of the motor during operation, avoiding the impact of vibration on the transmission effect, and extending the service life of the equipment.

[0024] The bracket 1 has a second mounting base 9 installed on the side away from the first mounting base 8. Together, they form a complete support assembly. Two sets of rotating rods 10 are symmetrically installed on the outer sides of the first mounting base 8 and the second mounting base 9. Both sets of rotating rods 10 are movably connected to the support component and are driven to rotate by the second drive assembly. The rotating rod 10 connected to the first mounting base 8 and the limiting rod 12 connected to the output end of the second motor 11 are connected by a limiting plug-in connection. The second motor 11 is fixed to one side of the support component through the third mounting base 13. The support component includes a column 14, a first base 15 and a second base 16. The tops of the two sets of columns 14 are movably connected to the two sets of rotating rods 10 respectively. The third mounting base 13 is installed on the outer side of one set of columns 14. The bottom ends of the two sets of columns 14 are welded and fixed to the first base 15. The first base 15 and the second base 16 are connected by a rotating joint and can be locked at an angle by a locking assembly.

[0025] After the second motor 11 starts, it drives the rotating rod 10, which is connected to it by a limit rod 12 at the output end, to rotate. The rotating rod 10 drives the support assembly consisting of the card seat 1, the first mounting seat 8, and the second mounting seat 9 to rotate. At the same time, another set of rotating rods 10 rotates synchronously with the support assembly and maintains a movable connection with the corresponding column 14. If it is necessary to adjust the overall angle of the support assembly, the locking component can be loosened so that the first base 15 rotates relative to the second base 16 through the rotary joint. After reaching the target angle, the locking component is locked to fix it. The second motor 11 is fixed to the column 14 through the third mounting seat 13. The two sets of columns 14 are fixed to the first base 15 by welding at the bottom end, providing stable support for the entire structure. The rotating rod 10 is driven by the second motor 11, which enables the automatic rotation of the support component. This facilitates the adjustment of the inclinometer's calibration angle and improves operational flexibility. The rotating rod 10 and the limit rod 12 are connected by a limit plug-in connection, which ensures the stability of power transmission and facilitates disassembly and maintenance. The rotating joint connection between the first base 15 and the second base 16, in conjunction with the locking component, enables flexible adjustment and stable locking of the overall angle of the support structure, adapting to different calibration scenarios. The column 14 is welded and fixed to the first base 15, ensuring the overall rigidity of the support structure and providing a stable foundation for the rotation and angle adjustment of the support component.

[0026] The locking assembly includes a positioning seat 17, a positioning rod 18, and a positioning hole 19. The positioning seat 17 is installed on the outer wall of the first base 15. The positioning seat 17 and the positioning rod 18 are connected by a plug-in connection. The positioning rod 18 can be inserted into the positioning hole 19 opened on the second base 16. Several sets of positioning holes 19 are distributed equidistantly along the circumference.

[0027] When it is necessary to adjust the relative angle between the first base 15 and the second base 16, pull out the positioning rod 18 to release the lock between the two. After the first base 15 rotates relative to the second base 16 to the target angle, insert the positioning rod 18 into the positioning hole 19 at the corresponding position of the second base 16 through the positioning seat 17 to achieve angle locking. Since the positioning holes 19 are evenly distributed along the circumference, different positioning holes 19 can be selected according to the requirements to achieve multi-angle locking.

[0028] The positioning rod 18, which adopts a plug-in connection, is simple and convenient to operate, and can quickly lock and unlock, improving the efficiency of angle adjustment. The positioning holes 19 are evenly distributed around the circumference, providing multiple fixed angle options to meet the angle positioning needs in different scenarios and enhance applicability. The positioning seat 17 supports and guides the positioning rod 18, ensuring the accuracy and stability of the positioning rod 18 when inserted into the positioning hole 19. The structure is simple, consisting of the positioning seat 17, the positioning rod 18, and the positioning hole 19. With fewer parts, it is easy to manufacture and maintain, reducing costs.

[0029] Working principle: After the first motor 7 starts, its output end drives the gear 6 to rotate. Since both sets of racks 5 mesh with the gear 6, the rotation of the gear 6 will drive the two sets of racks 5 to move synchronously in opposite directions. Because the racks 5 and the slider 3 are integrally formed, the movement of the racks 5 drives the slider 3 to slide synchronously in opposite directions along the slide groove 4, thereby realizing the centering, clamping and releasing action of the locking block 2. After the second motor 11 starts, it drives the rotating rod 10, which is connected to it by a limit rod 12, to rotate through the limit rod 12. The rotating rod 10 drives the support assembly composed of the locking seat 1, the first mounting seat 8, and the second mounting seat 9 to rotate. At the same time, the other set of rotating rods 10 rotates synchronously with the support assembly and maintains a movable connection with the corresponding column 14. If it is necessary to adjust the overall angle of the support assembly, the locking can be released. The components allow the first base 15 to rotate relative to the second base 16 via a rotary joint until the target angle is reached, at which point the locking component is tightened for fixation. The second motor 11 is fixed to the column 14 via the third mounting base 13. The two columns 14 are fixed to the first base 15 by welding their bottom ends to provide stable support for the entire structure. When it is necessary to adjust the relative angle between the first base 15 and the second base 16, the positioning rod 18 is pulled out to release the lock between the two. After the first base 15 rotates relative to the second base 16 to the target angle, the positioning rod 18 is inserted into the positioning hole 19 at the corresponding position of the second base 16 via the positioning seat 17 to achieve angle locking. Since the positioning holes 19 are equidistantly distributed along the circumference, different positioning holes 19 can be selected according to the requirements to achieve multi-angle locking.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A calibration stand for a wireless drilling rig, comprising a mounting base (1), characterized in that: Two sets of slidable blocks (2) are symmetrically installed in the inner cavity of the card holder (1). The opposite sides of the two sets of blocks (2) are designed with V-shaped positioning surfaces to form a V-shaped centering structure. A set of sliders (3) is installed on one side of each set of blocks (2). The sliders (3) can slide along the groove (4) opened on one side of the card holder (1) and cooperate with the gear drive assembly to achieve reverse synchronous movement, which can realize the centering clamping and releasing action of the inclinometer.

2. The wireless drilling rig calibration platform according to claim 1, characterized in that: The gear drive assembly includes two sets of racks (5), gears (6), a first motor (7) and a first mounting base (8). Each of the two sets of sliders (3) has a set of racks (5) integrally formed on the opposite side. Both sets of racks (5) mesh with the gears (6). The gears (6) are connected to the output end of the first motor (7). The first motor (7) is fixedly installed through a set of the first mounting base (8).

3. The wireless drilling rig calibration platform according to claim 2, characterized in that: The card holder (1) is equipped with a second mounting base (9) on the side away from the first mounting base (8). The three together form a complete support assembly. Two sets of rotating rods (10) are symmetrically installed on the outer sides of the first mounting base (8) and the second mounting base (9). Both sets of rotating rods (10) are movably connected to the support member and are driven by the second drive assembly to rotate the support assembly.

4. The wireless drilling rig calibration platform according to claim 3, characterized in that: The rotating rod (10) connected to the first mounting base (8) and the limiting rod (12) connected to the output end of the second motor (11) are connected by a limiting plug-in connection. The second motor (11) is fixed to one side of the support member through the third mounting base (13).

5. The wireless drilling rig calibration platform according to claim 4, characterized in that: The support includes a column (14), a first base (15) and a second base (16). The tops of the two sets of columns (14) are movably connected to the two sets of rotating rods (10). The third mounting seat (13) is installed on the outer side of one set of columns (14). The bottom ends of the two sets of columns (14) are welded and fixed to the first base (15). The first base (15) and the second base (16) are connected by a rotating joint and can be locked at an angle by a locking component.

6. The wireless drilling rig calibration platform according to claim 5, characterized in that: The locking assembly includes a positioning seat (17), a positioning rod (18), and a positioning hole (19). The positioning seat (17) is installed on the outer wall of the first base (15). The positioning seat (17) and the positioning rod (18) are connected by a plug-in connection. The positioning rod (18) can be inserted into the positioning hole (19) opened on the second base (16). The positioning holes (19) are distributed in several groups at equal intervals along the circumference.

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