Instrument anti-fracturing rapid detection device and use method thereof
By designing a rapid instrument testing device with a rotatable positioning clamp and a detachable pressure application head, the problem of poor versatility of traditional testing devices is solved. This enables rapid adaptation to instruments of different shapes and multi-directional pressure application, thereby improving testing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2026-01-07
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional instrument and meter pressure testing devices have poor versatility and cannot be adaptively adjusted according to the appearance of the instrument and meter. This results in the need to disassemble and replace special fixtures when testing instruments and meters of different shapes, which prolongs the test preparation cycle and reduces the test efficiency.
A rapid detection device comprising a base, a fixing mechanism, a displacement adjustment mechanism, and a pressure application mechanism was designed. Through a positioning clamp that can be limited to rotate and a detachable pressure application head, it can quickly clamp and apply pressure to instruments of different shapes, simulating the actual working environment.
It improves the versatility of testing equipment and the accuracy of test results, shortens the testing cycle, and increases testing efficiency.
Smart Images
Figure CN121933353A_ABST
Abstract
Description
Technical Field
[0001] This invention patent relates to the field of instrument and meter testing technology, specifically to a rapid testing device for the anti-cracking resistance of instruments and meters and its usage method. Background Technology
[0002] Instruments and meters are frequently subjected to external forces such as compression, collision, and high pressure during production, transportation, installation, and use. This is especially true in fields such as petrochemicals, mining, and aerospace, where instruments and meters must operate under harsh environments of high pressure and vibration for extended periods. The crack resistance of their outer casing and internal structure directly determines their service life and operational safety. If the crack resistance of instruments and meters is substandard, it can lead to minor issues such as casing damage and internal component displacement, affecting measurement accuracy; in severe cases, it can cause internal circuit short circuits, media leakage, or even equipment failure and safety accidents.
[0003] Therefore, it is crucial to conduct professional fracturing resistance testing on instruments before they leave the factory and during regular maintenance. However, traditional instrument fracturing resistance testing devices have poor versatility, mostly using fixed clamps that cannot be adaptively adjusted according to the appearance of the instruments. This results in a significant amount of time being spent disassembling and replacing the clamps with suitable special clamps when testing instruments of different shapes, which not only prolongs the test preparation cycle but also directly causes a significant decrease in overall test efficiency. Summary of the Invention
[0004] To overcome the shortcomings of the prior art, the present invention provides a rapid detection device for the resistance of instruments to fracturing and its usage method, the specific technical solution of which is as follows: A rapid testing device for instrument fracturing resistance includes a base, a fixing mechanism, a displacement adjustment mechanism, and a pressure application mechanism. Supporting side plates are provided on the top left and right sides of the base. The fixing mechanism is located between the two supporting side plates near the bottom. The displacement adjustment mechanism is located between the two supporting side plates near the top. The pressure application mechanism is detachably located at the bottom of the displacement adjustment mechanism. The instrument is clamped by the fixing mechanism, and the pressure application mechanism moves along the X-axis and / or Y-axis and / or Z-axis directions via the displacement adjustment mechanism.
[0005] Preferably, the fixing mechanism includes a support platform, a double-rotating lead screw pair, two anti-rotation connecting rods, and two positioning clamps; the support platform is horizontally arranged between two supporting side plates, and a first limiting groove is symmetrically arranged on the left and right sides of the support platform along its length; the double-rotating lead screw pair is horizontally arranged below the support platform corresponding to the position of the first limiting groove; the double-rotating lead screw pair includes a first lead screw part and a second lead screw part with opposite surface thread directions; each positioning clamp has a first slider at its bottom, and the first slider has a first screw hole; the first screw holes of the two first sliders are respectively fitted onto the nuts of the first lead screw part and the second lead screw part; one end of the double-rotating lead screw pair is connected to one of the supporting side plates through a bearing, and the other end passes through the other supporting side plate and is connected to the output shaft of the first servo motor; a protrusion is provided on the top of the first slider, and the first slider is slidably connected to the first limiting groove through the protrusion; a connecting cylinder is provided in the middle of the top of the protrusion, and a limiting block is provided on one side of the outer wall of the connecting cylinder; the position of the positioning clamp corresponds to the position of the connecting cylinder hole. The connecting cylinder is provided with an insertion hole; a compression chamber is provided at the bottom of the cylinder hole; a limiting groove is provided at the bottom of the positioning clamp, the upper part of the limiting groove corresponding to the position of the limiting block is a semi-annular groove, and the lower part of the limiting groove is a full-annular groove; the connecting cylinder is embedded in the limiting groove and the limiting block is rotatably connected to the semi-annular groove at the top of the limiting groove; the anti-rotation connecting rod is inserted into the insertion hole of the positioning clamp, the cylinder hole of the connecting cylinder, and the compression chamber; the top end of the anti-rotation connecting rod extends out of the insertion hole and is provided with a handle, and the bottom end of the anti-rotation connecting rod extends to the compression chamber. A limiting base is provided in the compression chamber; two anti-rotation blocks are symmetrically arranged on the side wall of the anti-rotation connecting rod near the top; an anti-rotation groove is provided on the top of the positioning clamp block corresponding to the position of the anti-rotation blocks, and the anti-rotation blocks are inserted into the anti-rotation groove; a first spring is also sleeved on the surface of the anti-rotation connecting rod located in the compression chamber; the diameter of the insertion hole and the diameter of the connecting cylinder hole are both equal to the diameter of the anti-rotation connecting rod; the diameter of the compression chamber is larger than the diameter of the connecting cylinder hole; the outer diameter of the limiting base is adapted to the inner diameter of the compression chamber.
[0006] Preferably, the displacement adjustment mechanism includes an X-axis transmission assembly, a Y-axis transmission assembly, and an electric telescopic rod; the X-axis transmission assembly includes a horizontal adjustment plate, a first lead screw pair, and a second slider; the horizontal adjustment plate is installed between two support side plates near the top; a second limiting groove is provided in the middle of the horizontal adjustment plate along its length; the first lead screw pair is located below the horizontal adjustment plate corresponding to the second limiting groove; one end of the lead screw of the first lead screw pair is connected to one of the support side plates via a bearing, and the other end passes through the other support side plate and is connected to the output shaft of a second servo motor; the second slider is fixed to the lead screw nut of the first lead screw pair via a second screw hole; ribs are provided at the four corners of the bottom of the horizontal adjustment plate; the Y-axis transmission... The moving assembly includes a U-shaped slide, a second lead screw pair, two guide rods, and a third slider. The U-shaped slide is fixed to the bottom of the second slider. The two guide rods and the second lead screw pair are installed between the two wing plates of the U-shaped slide along the length of the U-shaped slide. The two guide rods are located on the left and right sides of the second lead screw pair, respectively. One end of the lead screw of the second lead screw pair is connected to the wing plate of one of the U-shaped slides through a bearing, and the other end passes through the wing plate of the other U-shaped slide and is connected to the output shaft of the third servo motor. The third slider is fixed to the nut of the second lead screw pair through a third screw hole. The third slider is slidably connected to the two guide rods through a sliding hole. A mounting base is provided at the bottom of the third slider, and the electric telescopic rod is fixed to the third slider through the mounting base.
[0007] Preferably, the pressure application mechanism includes a connecting seat fixed to the bottom of the electric telescopic rod, a pressure application head detachably disposed at the bottom of the connecting seat, and two sliding support rods.
[0008] Preferably, the connecting seat has an axial mounting groove in the middle; the connecting seat has two symmetrical sliding through holes in its radial direction; the sliding through holes are expanded outward on the side away from the mounting groove to form a spring deformation cavity; the two sliding support rods are respectively inserted into the two sliding through holes and both ends extend outward from the sliding through holes.
[0009] Preferably, a limiting chuck is provided at one end of the sliding support rod extending into the mounting groove, and a push handle is provided at the other end; a compression protrusion ring is provided on the side of the sliding support rod located in the spring deformation cavity away from the mounting groove, and the outer diameter of the compression protrusion ring is adapted to the inner diameter of the spring deformation cavity.
[0010] Preferably, a second spring is also fitted onto the surface of the sliding support rod located within the spring deformation cavity.
[0011] Preferably, the top of the pressure applying head is provided with an assembly insert shaft corresponding to the position of the mounting groove, the assembly insert shaft is provided with a receiving chamber capable of accommodating the limiting chuck, and the side wall of the assembly insert shaft is provided with U-shaped locking shaft grooves corresponding to the positions of the two sliding support rods. The limiting chuck is slidably connected to the U-shaped locking shaft grooves through the sliding support rods. The top wall of the assembly insert shaft is provided with two through grooves symmetrically arranged in the middle direction perpendicular to the line connecting the two U-shaped locking shaft grooves.
[0012] More preferably, the size of the U-shaped locking shaft groove is smaller than the size of the limiting chuck; the size of the sliding through hole is smaller than the size of the push handle and the limiting chuck; the sum of the lengths of the two through grooves and the width of the U-shaped locking shaft groove is greater than or equal to the outer diameter of the limiting chuck; and the width of the through groove is equal to twice the thickness of the limiting chuck.
[0013] A method for using a rapid testing device for the fracturing resistance of instruments and meters, employing the aforementioned testing device, specifically includes the following steps: S1. According to the shape of the instrument to be tested, lift the handle of the anti-rotation connecting rod to disengage the anti-rotation block from the anti-rotation groove of the positioning clamp, rotate the positioning clamp to the side that matches the shape of the instrument to be tested, and then release the anti-rotation connecting rod to lock it back into the anti-rotation groove of the positioning clamp. S2. Turn on the first servo motor and adjust the position of the two first sliders on the double-rotating lead screw pair so that the two positioning clamps firmly clamp the instrument to be tested onto the carrier platform. S3. Turn on the second and third servo motors, and adjust the position of the second slider on the first lead screw pair and the position of the third slider on the second lead screw pair to align the pressure application mechanism directly above the desired pressure position; S4. Select the required pressure application head, and simultaneously push the two push handles inward to push the two sliding support rods towards the mounting groove side until the two limit chucks are tightly attached and correspond to the position above the mounting insert shaft through groove. Insert the two limit chucks into the receiving cavity from the through groove. At this time, the second spring is in a contracted state due to the compression of the compression ring. Then release the push handles, and the tension of the second spring drives the sliding support rod to return to its original position. The two limit chucks move in opposite directions until they are tightly attached to the inner wall of the U-shaped locking shaft groove on the same side, completing the installation of the pressure application head and the bottom connecting seat of the electric telescopic rod. S5. Activate the electric telescopic rod to move the pressure application head downward and apply pressure to the instrument to be tested. The pressure sensor detects the pressure in real time and converts the detected pressure signal into a digital pressure signal, which is then compared with the standard fracturing parameters of the instrument to be tested.
[0014] The beneficial effects of this invention are: 1. This invention uses a positioning clamp that can be rotated to limit the position, which allows for quick switching according to the shape of different instruments to be tested, thus improving the versatility of the testing equipment; 2. The present invention can adjust the pressure application mechanism along the X / Y / Z axis through the displacement adjustment mechanism, thereby completing the pressure application at different positions of the instrument to be tested, simulating the complex pressure conditions that the instrument may encounter in the actual working environment, making the test results closer to the actual application scenario, and thus improving the accuracy and reliability of the test results; 3. In order to solve the problem that a single pressure application head cannot cover diverse detection needs, the present invention makes the pressure application head detachable, so that different pressure application heads can be selected according to actual pressure detection needs, which is faster and more efficient. Attached Figure Description
[0015] The accompanying drawings constituting this invention are provided to further understand this application and do not constitute an undue limitation of this application.
[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the fixing mechanism in this invention; Figure 3 A sectional view of the positioning clamp and the first slider in the fixing mechanism; Figure 4 A schematic diagram showing the disassembly of the positioning clamp and the first slider; Figure 5 This is a schematic diagram of the X-axis transmission assembly in the displacement adjustment mechanism; Figure 6 This is a schematic diagram of the Y-axis transmission assembly in the displacement adjustment mechanism; Figure 7 This is a schematic diagram of the installation of the electric telescopic rod and assembly components in the displacement adjustment mechanism; Figure 8 This is a schematic diagram of the pressure application mechanism of the present invention.
[0017] In the picture: 1-Base; 101-Supporting side plate; 2-Fixing mechanism; 201-Bearing platform; 2011-Double-rotating lead screw pair; 2012-First servo motor; 202-First slider; 2021-First screw hole; 2022-Protrusion; 2023-First limiting groove; 203-Connecting cylinder; 2031-Limiting block; 204-Positioning clamp; 2041-Limiting rotary groove; 205-Modible through groove; 2051-Anti-rotation connecting rod; 2052-Limiting chassis; 2053-Extrusion chamber; 2054-First spring; 2055-Anti-rotation block; 2056-Anti-rotation groove; 2057-Handle; 3-Displacement adjustment mechanism; 301-Horizontal adjustment plate; 3011-Rib plate; 3012-Second limit slide groove; 302-First lead screw pair; 3021-Second servo motor; 303-Second slider; 3031-Second screw hole; 3032-U-shaped slide block; 304-Second lead screw pair; 3041-Guide rod; 3042-Third servo motor; 305-Third slider; 3051-Third screw hole; 3052-Guide slide hole; 3053-Mounting carrier; 306-Electric telescopic rod; 4-Pressure application mechanism; 401-Connecting seat; 4011-Mounting groove; 4012-Sliding through hole; 402-Sliding support rod; 4021-Limiting chuck; 4022-Extrusion protrusion ring; 4023-Spring deformation cavity; 4024-Second spring; 4025-Push handle; 403-Assembly insert shaft; 4031-Through groove; 4032-Receiving chamber; 4033-Pressure application head. Detailed Implementation
[0018] The specific implementation of the instrument and meter rapid detection device for pressure fracturing and its usage method provided by the present invention will be further described in conjunction with the accompanying drawings and embodiments.
[0019] like Figure 1 As shown, a rapid testing device for the resistance of instruments to hydraulic fracturing includes a base 1, a fixing mechanism 2, a displacement adjustment mechanism 3, and a pressure application mechanism 4. Supporting side plates 101 are provided on the top left and right sides of the base 1; the fixing mechanism 2 is located between the two supporting side plates 101 near the bottom; the displacement adjustment mechanism 3 is located between the two supporting side plates 101 near the top; and the pressure application mechanism 4 is detachably installed at the bottom of the displacement adjustment mechanism 3. In use, the instrument to be tested is firmly clamped and fixed by the fixing mechanism 2, and the pressure application mechanism 4 can be adjusted along the X-axis and / or Y-axis and / or Z-axis directions by the displacement adjustment mechanism 3. Specifically: like Figures 2-4 As shown, the fixing mechanism 2 includes a support platform 201, a double-rotating lead screw pair 2011, two positioning clamps 204, and each positioning clamp 204 is equipped with an anti-rotation connecting rod 2051. The support platform 201 is horizontally positioned between two supporting side plates 101, and a first limiting groove is symmetrically arranged on both sides of the middle of the support platform 201 along its length direction. The double-rotating lead screw pair 2011 is horizontally positioned below the support platform 201, corresponding to the position of the first limiting groove.
[0020] Preferably, the dual-direction lead screw pair 2011 includes a first lead screw section and a second lead screw section with opposite surface thread directions; one end of the dual-direction lead screw pair 2011 is connected to one of the support side plates 101 via a bearing, and the other end passes through the other support side plate 101 and is connected to the output shaft of the first servo motor 2012. Each positioning clamping block 204 has a first slider 202 at its bottom, and the first slider 202 has a first screw hole 2021; the first screw holes 2021 of the two first sliders 202 are respectively fitted onto the nuts of the first and second lead screw sections of the dual-direction lead screw pair 2011, thereby controlling the rotation of the dual-direction lead screw pair 2011 to achieve the movement of the two first sliders 202 towards or away from each other.
[0021] Preferably, the top of the first slider 202 is provided with a protrusion 2022, and the first slider 202 is slidably connected to the first limiting groove through the protrusion 2022.
[0022] Preferably, a connecting cylinder 203 is provided at the top center of the protrusion 2022, a limiting block 2031 is provided on one side of the outer wall of the connecting cylinder 203, and a limiting groove 2041 is provided at the bottom of the positioning clamp 204. It is worth noting that the upper part of the limiting groove 2041 is a semi-annular groove corresponding to the position of the limiting block 2031, and the lower part of the limiting groove 2041 is a full annular groove. The connecting cylinder 203 is embedded in the limiting groove 2041, and the limiting block 2031 on its surface is rotatably connected to the semi-annular groove at the upper part of the limiting groove 2041. That is, the positioning clamp 204 can complete a clockwise or counterclockwise rotation angle of exactly 180° at the top of the first slider 202, which facilitates precise switching of the clamping surface and the reset of the anti-rotation connecting rod 2051.
[0023] Preferably, the positioning clamping block 204 (the upper part of the limiting rotation groove 2041) has an insertion hole in the middle corresponding to the position of the cylinder hole of the connecting cylinder 203; the bottom of the cylinder hole of the connecting cylinder 203 has a compression chamber 2053; the anti-rotation connecting rod 2051 is inserted into the connecting hole formed by the positioning clamping block 204, the cylinder hole of the connecting cylinder 203, and the compression chamber 2053. The top end of the anti-rotation connecting rod 2051 extends out of the insertion hole and is provided with a handle 2057, and its bottom end extends into the compression chamber 2053 and is provided with a limiting base 2052; two anti-rotation blocks 2055 are symmetrically arranged on the side wall of the anti-rotation connecting rod 2051 near the top; the top of the positioning clamping block 204 is provided with an anti-rotation groove 2056 corresponding to the position of the anti-rotation blocks 2055, and the anti-rotation blocks 2055 are inserted into the anti-rotation groove 2056, thereby limiting the rotation of the positioning clamping block 204.
[0024] It is worth emphasizing that the diameter of the insertion hole and the diameter of the connecting cylinder 203 are both equal to the diameter of the anti-rotation connecting rod 2051; the diameter of the extrusion chamber 2053 is larger than the diameter of the connecting cylinder 203; and the outer diameter of the limiting base 2052 is compatible with the inner diameter of the extrusion chamber 2053.
[0025] like Figures 5-6 As shown, the displacement adjustment mechanism 3 includes an X-axis transmission assembly, a Y-axis transmission assembly, and an electric telescopic rod 306. Specifically, The X-axis transmission assembly includes a horizontal adjusting plate 301, a first lead screw pair 302, and a second slider 303. The horizontal adjusting plate 301 is installed between two supporting side plates 101 near the top. A second limiting groove is provided in the middle of the horizontal adjusting plate 301 along its length (X-axis direction). The first lead screw pair 302 is located below the horizontal adjusting plate 301, corresponding to the position of the second limiting groove. One end of the lead screw of the first lead screw pair 302 is connected to one of the supporting side plates 101 via a bearing, and the other end passes through the other supporting side plate 101 and is connected to the output shaft of a second servo motor 3021. The second slider 303 is fixed to the nut of the first lead screw pair 302 via a second screw hole 3031, thereby adjusting the position of the second slider 303 in the X-axis direction by adjusting the rotation of the first lead screw pair 302.
[0026] The Y-axis transmission assembly includes a U-shaped slide 3032, a second lead screw pair 304, two guide rods 3041, and a third slider 305. The U-shaped slide 3032 is fixed to the bottom of the second slider 303. The two guide rods 3041 and the second lead screw pair 304 are installed along the length of the U-shaped slide 3032 between two wing plates. The two guide rods 3041 are located on the left and right sides of the second lead screw pair 304, respectively. One end of the lead screw of the second lead screw pair 304 is connected to one wing plate of the U-shaped slide 3032 via a bearing, and the other end passes through the wing plate of the other U-shaped slide 3032 and is connected to the output shaft of the third servo motor 3042. The third slider 305 is fixed to the nut of the second lead screw pair 304 through a third screw hole 3051. The third slider 305 is slidably connected to the two guide rods 3041 through sliding holes, thereby realizing the adjustment of the position of the third slider 305 in the Y-axis direction. The bottom of the third slider 305 is provided with a mounting base 3053. The electric telescopic rod 306 is fixed to the third slider 305 through the mounting base 3053. The displacement of the pressure application mechanism 4 in the Z-axis direction and the adjustment of the pressure applied can be realized through the electric telescopic rod 306.
[0027] like Figures 7-8As shown, the pressure application mechanism 4 includes a connecting seat 401 fixed to the bottom of the electric telescopic rod 306, a pressure application head 4033 detachably disposed at the bottom of the connecting seat 401, and two sliding support rods 402. Specifically: The connecting seat 401 has a mounting groove 4011 along its axial direction in the middle; the connecting seat 401 has two sliding through holes 4012 symmetrically arranged radially; it is worth noting that the sliding through hole 4012 is expanded outward on the side away from the mounting groove 4011 to form a spring deformation cavity 4023; the two sliding support rods 402 are respectively inserted into the two sliding through holes 4012 and both ends extend out of the sliding through holes 4012. A limit chuck 4021 is provided at one end of the sliding support rod 4012 extending into the mounting groove 4011, and a push handle 4025 is provided at the other end.
[0028] Preferably, a compression protrusion ring 4022 is provided on the side of the sliding support rod 402 located in the spring deformation cavity 4023 away from the mounting groove 4011. It is worth emphasizing that the outer diameter of the compression protrusion ring 4022 is adapted to the inner diameter of the spring deformation cavity 4023.
[0029] Preferably, the top of the pressure applying head 4033 is provided with an assembly insert shaft 403 corresponding to the position of the mounting groove 4011, and the interior of the assembly insert shaft 403 is provided with a receiving chamber 4032 capable of accommodating the limiting chuck 4021. The sidewall of the assembly insert shaft 403 is provided with U-shaped locking shaft grooves corresponding to the positions of the two sliding support rods 402, and the limiting chuck 4021 is slidably connected to the U-shaped locking shaft grooves through the sliding support rods 402. Two through grooves 4031 are symmetrically provided in the middle of the top wall of the assembly insert shaft 403, perpendicular to the direction of the line connecting the two U-shaped locking shaft grooves.
[0030] It is worth emphasizing that the size of the U-shaped locking shaft groove is smaller than the size of the limiting chuck 4021, preventing the limiting chuck 4021 from disengaging from the receiving chamber 4023. The size of the sliding through hole 4012 is smaller than the size of the push handle 4025 and the limiting chuck 4021, further limiting the sliding of the sliding support rod 402 in the sliding through hole 12. The sum of the lengths of the two through slots 4031 and the width of the U-shaped locking shaft groove is greater than or equal to the outer diameter of the limiting chuck 4021, and the width of the through slot 4031 is equal to or slightly greater than twice the thickness of the limiting chuck 4021; when the pressure application head 4033 is replaced or removed, it can be ensured that the limiting chuck 4021 can be smoothly separated from the receiving chamber 4032 of the mounting shaft 403 at the through slot 4031.
[0031] More preferably, a first spring 2054 is also fitted onto the surface of the anti-rotation connecting rod 2051 located in the extrusion chamber 2053. A second spring 4024 is also fitted onto the surface of the sliding support rod 402 located in the spring deformation chamber 4023.
[0032] More preferably, in order to ensure the overall stability of the displacement adjustment mechanism 3, ribs 3011 are provided at the four bottom corners of the horizontal adjustment plate 301.
[0033] The following is a detailed explanation of the operating steps for this instrument's rapid fracturing resistance testing device: S1. According to the shape of the instrument to be tested, the anti-rotation block 2055 is disengaged from the anti-rotation groove 2056 of the positioning clamp 204 by lifting the handle 2057 of the anti-rotation connecting rod 2051. Then, the positioning clamp 204 is rotated 180° to the side that matches the shape of the instrument to be tested. The anti-rotation connecting rod 2051 is then released. At this time, the first spring 2054 restores its elastic deformation, so that the anti-rotation block 2055 is re-engaged into the anti-rotation groove 2056 of the positioning clamp 204 for locking. S2. Turn on the first servo motor 2012, adjust the position of the two first sliders 202 on the double-rotation screw pair 2011, so that the two positioning clamps 204 firmly clamp the instrument to be tested on the carrier platform 201. S3. Turn on the second servo motor 2032 and the third servo motor 3042, and adjust the position of the second slider 303 on the first lead screw pair 302 and the position of the third slider 305 on the second lead screw pair 304 to align the pressure application mechanism 4 directly above the required pressure application position. S4. Select the required pressure application head 4033, and simultaneously push the two push handles 2025 inward to push the two sliding support rods 402 toward the mounting groove 4011 until the two limit chucks 4021 are tightly attached and correspond to the position above the through groove 4031 of the mounting shaft 403. Insert the two limit chucks 4021 into the receiving chamber 4032 from the through groove 4031. At this time, the second spring 4024 is in a contracted state due to the compression of the compression ring 4022. Then release the push handles 4025. The tension of the second spring 4024 drives the sliding support rods 402 to return to their original position. The two limit chucks 4021 move in opposite directions until they are tightly attached to the inner wall of the U-shaped locking shaft groove on the same side. This completes the installation and fixing of the pressure application head 4033 and the bottom connecting seat 401 of the electric telescopic rod 306. S5. Activate the electric telescopic rod 306 to move the pressure application head 4033 downwards and apply pressure to the instrument under test. The pressure is detected in real time by a pressure sensor (a known prior art device, not shown in the figure), and the detected pressure signal is converted into a digital pressure signal and compared with the standard fracturing parameters of the instrument under test. This invention can flexibly adapt to the appearance of the instrument, breaking the limitations of traditional fixed structures, improving the versatility of the testing equipment, accelerating testing efficiency, and shortening the overall testing cycle.
[0034] In this invention, terms such as "upper," "lower," "bottom," and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are merely used to facilitate the description of the structural relationships of the various components or elements of this invention and do not specifically refer to any particular component or element in this invention, nor should they be construed as limiting the invention. Terms such as "connected" and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can determine the specific meaning of the above terms in this invention based on the specific circumstances, and they should not be construed as limiting the invention.
[0035] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.
Claims
1. A rapid detection device for the resistance of instruments to fracturing, characterized in that, Includes a base, a fixing mechanism, a displacement adjustment mechanism, and a pressure application mechanism; The base has supporting side plates on the top left and right sides; the fixing mechanism is located between the two supporting side plates near the bottom; the displacement adjustment mechanism is located between the two supporting side plates near the top; the pressure application mechanism is detachably located at the bottom of the displacement adjustment mechanism. The instruments are clamped by a fixing mechanism, and the pressure application mechanism moves along the X-axis and / or Y-axis and / or Z-axis directions by a displacement adjustment mechanism.
2. The rapid detection device for hydraulic fracturing resistance of instruments and meters according to claim 1, characterized in that, The fixing mechanism includes a bearing platform, a double-rotating lead screw pair, two anti-rotation connecting rods, and two positioning clamps; The bearing platform is horizontally arranged between two supporting side plates, and the bearing platform is symmetrically provided with first limiting grooves on the left and right sides along its length in the middle; the double-rotating screw pair is horizontally arranged below the bearing platform corresponding to the position of the first limiting groove; the double-rotating screw pair includes a first screw part and a second screw part with opposite surface thread directions. Each of the positioning clamping blocks is provided with a first slider at its bottom, and the first slider is provided with a first screw hole; the first screw holes of the two first sliders are respectively fitted onto the screw nuts of the first lead screw and the second lead screw. One end of the dual-rotor screw pair is connected to one of the support side plates via a bearing, and the other end passes through the other support side plate and is connected to the output shaft of the first servo motor. The first slider has a protrusion at its top, and the first slider is slidably connected to the first limiting groove through the protrusion; a connecting cylinder is provided in the middle of the top of the protrusion, and a limiting block is provided on one side of the outer wall of the connecting cylinder; an insertion hole is provided in the middle of the positioning clamp corresponding to the position of the connecting cylinder hole; and a compression chamber is provided at the bottom of the connecting cylinder hole. The bottom of the positioning clamp is provided with a limiting groove, the upper part of the limiting groove is a semi-annular groove corresponding to the position of the limiting block, and the lower part of the limiting groove is a full annular groove; the connecting cylinder is embedded in the limiting groove and the limiting block is rotatably connected to the semi-annular groove at the upper part of the limiting groove. The anti-rotation connecting rod is inserted into the insertion hole of the positioning clamp, the cylinder hole of the connecting cylinder, and the extrusion chamber; the top end of the anti-rotation connecting rod extends out of the insertion hole and is provided with a handle, and the bottom end of the anti-rotation connecting rod extends into the extrusion chamber and is provided with a limiting base; two anti-rotation blocks are symmetrically arranged on the side wall of the anti-rotation connecting rod near the top; the top of the positioning clamp is provided with an anti-rotation groove corresponding to the position of the anti-rotation blocks, and the anti-rotation blocks are inserted into the anti-rotation groove; a first spring is also sleeved on the surface of the anti-rotation connecting rod located in the extrusion chamber; The diameter of the insertion hole and the diameter of the connecting cylinder hole are both equal to the diameter of the anti-rotation connecting rod; the diameter of the extrusion chamber is larger than the diameter of the connecting cylinder hole; the outer diameter of the limiting base plate is adapted to the inner diameter of the extrusion chamber.
3. The rapid detection device for hydraulic fracturing resistance of instruments and meters according to claim 2, characterized in that, The displacement adjustment mechanism includes an X-axis transmission assembly, a Y-axis transmission assembly, and an electric telescopic rod; The X-axis transmission assembly includes a horizontal adjustment plate, a first lead screw pair, and a second slider. The horizontal adjustment plate is installed between two supporting side plates near the top. A second limiting groove is provided in the middle of the horizontal adjustment plate along its length. The first lead screw pair is located below the horizontal adjustment plate, corresponding to the second limiting groove. One end of the lead screw of the first lead screw pair is connected to one of the supporting side plates via a bearing, and the other end passes through the other supporting side plate and is connected to the output shaft of a second servo motor. The second slider is fixed to the nut of the first lead screw pair via a second screw hole. Ribs are provided at the four corners of the bottom of the horizontal adjustment plate. The Y-axis transmission assembly includes a U-shaped slide, a second lead screw pair, two guide rods, and a third slider. The U-shaped slide is fixed to the bottom of the second slider. The two guide rods and the second lead screw pair are installed between two wing plates of the U-shaped slide along its length. The two guide rods are located on the left and right sides of the second lead screw pair, respectively. One end of the lead screw of the second lead screw pair is connected to one wing plate of the U-shaped slide via a bearing, and the other end passes through the wing plate of the other U-shaped slide and is connected to the output shaft of the third servo motor. The third slider is fixed to the nut of the second lead screw pair via a third screw hole. The third slider is slidably connected to the two guide rods via a sliding hole. The bottom of the third slider is provided with a mounting base, and the electric telescopic rod is fixed to the third slider through the mounting base.
4. The rapid detection device for instrument and meter crack resistance according to claim 3, characterized in that, The pressure application mechanism includes a connecting seat fixed to the bottom of the electric telescopic rod, a pressure application head detachably disposed at the bottom of the connecting seat, and two sliding support rods.
5. The rapid detection device for hydraulic fracturing resistance of instruments and meters according to claim 4, characterized in that, The connecting seat has an axial mounting groove in the middle; the connecting seat has two sliding through holes symmetrically arranged radially; the sliding through holes are expanded outward on the side away from the mounting groove to form a spring deformation cavity; the two sliding support rods are respectively inserted into the two sliding through holes and both ends extend outward from the sliding through holes.
6. The rapid detection device for hydraulic fracturing resistance of instruments and meters according to claim 5, characterized in that, The sliding support rod is provided with a limit chuck at one end that extends into the mounting groove, and a push handle at the other end; A compression protrusion ring is provided on the side of the sliding support rod located in the spring deformation cavity away from the mounting groove, and the outer diameter of the compression protrusion ring is adapted to the inner diameter of the spring deformation cavity.
7. The rapid detection device for compressive fracturing resistance of instruments and meters according to claim 4, characterized in that, A second spring is also fitted onto the surface of the sliding support rod located within the spring deformation cavity.
8. The rapid detection device for hydraulic fracturing resistance of instruments and meters according to claim 6, characterized in that, The pressure application head is provided with an assembly insert shaft at the position corresponding to the mounting groove. The assembly insert shaft has a storage chamber inside that can accommodate the limiting chuck. The side wall of the assembly insert shaft is provided with a U-shaped locking shaft groove at the position corresponding to the two sliding support rods. The limiting chuck is slidably connected to the U-shaped locking shaft groove through the sliding support rods. The top wall of the assembly insert shaft has two through slots symmetrically arranged in the direction perpendicular to the line connecting the two U-shaped locking shaft slots.
9. The rapid detection device for hydraulic fracturing resistance of instruments and meters according to claim 8, characterized in that, The size of the U-shaped locking groove is smaller than the size of the limiting chuck. The size of the sliding through hole is smaller than the size of the push handle and the limiting chuck; The sum of the lengths of the two through slots and the width of the U-shaped locking shaft slot is greater than or equal to the outer diameter of the limiting chuck; the width of the through slot is equal to twice the thickness of the limiting chuck.
10. A method of using a rapid testing device for the fracturing resistance of instruments and meters, employing the testing device described in claim 9, characterized in that... Specifically, the following steps are included: S1. According to the shape of the instrument to be tested, lift the handle of the anti-rotation connecting rod to disengage the anti-rotation block from the anti-rotation groove of the positioning clamp, rotate the positioning clamp to the side that matches the shape of the instrument to be tested, and then release the anti-rotation connecting rod to lock it back into the anti-rotation groove of the positioning clamp. S2. Turn on the first servo motor and adjust the position of the two first sliders on the double-rotating lead screw pair so that the two positioning clamps firmly clamp the instrument to be tested onto the carrier platform. S3. Turn on the second and third servo motors, and adjust the position of the second slider on the first lead screw pair and the position of the third slider on the second lead screw pair to align the pressure application mechanism directly above the desired pressure position; S4. Select the required pressure application head, and simultaneously push the two push handles inward to push the two sliding support rods towards the mounting groove side until the two limit chucks are tightly attached and correspond to the position above the mounting insert shaft through groove. Insert the two limit chucks into the receiving cavity from the through groove. At this time, the second spring is in a contracted state due to the compression of the compression ring. Then release the push handles, and the tension of the second spring drives the sliding support rod to return to its original position. The two limit chucks move in opposite directions until they are tightly attached to the inner wall of the U-shaped locking shaft groove on the same side, completing the installation of the pressure application head and the bottom connecting seat of the electric telescopic rod. S5. Activate the electric telescopic rod to move the pressure application head downward and apply pressure to the instrument to be tested. The pressure sensor detects the pressure in real time and converts the detected pressure signal into a digital pressure signal, which is then compared with the standard fracturing parameters of the instrument to be tested.