CN111595492A - Pressure measuring device and force measuring system - Google Patents
Pressure measuring device and force measuring system Download PDFInfo
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- CN111595492A CN111595492A CN202010583028.8A CN202010583028A CN111595492A CN 111595492 A CN111595492 A CN 111595492A CN 202010583028 A CN202010583028 A CN 202010583028A CN 111595492 A CN111595492 A CN 111595492A
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- stress
- positioning piece
- positioning
- strain gauge
- pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/005—Measuring force or stress, in general by electrical means and not provided for in G01L1/06 - G01L1/22
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The application relates to the technical field of pressure measurement devices, in particular to a pressure measurement device and a force measurement system. The pressure measuring device comprises a first positioning piece, a second positioning piece and a measuring mechanism; the first positioning piece and the second positioning piece are arranged at intervals; the measuring mechanism is positioned between the first positioning piece and the second positioning piece and senses the pressure between the object to be measured and the crimping piece; a first stress bulge is formed on one side of the measuring mechanism and/or a second stress bulge is formed on the other side of the measuring mechanism; the first positioning piece abuts against the first stress bulge, and the first positioning piece can turn over for a first preset angle around the first axis; the second positioning piece is abutted against the second stress bulge and can turn over a second preset angle around the second axis; the first axis is perpendicular to the second axis. This application is protruding through setting up first atress arch and/or second atress to make first locating piece and second locating piece adapt to the roughness of determinand, realize more accurate pressure measurement effect.
Description
Technical Field
The application relates to the technical field of pressure measurement devices, in particular to a pressure measurement device and a force measurement system.
Background
In the installation process of the existing dynamometer, due to the fact that the installation surface of a rock wall is uneven, the installation surface of the rock wall cannot be absolutely parallel to a pressure contact surface of the dynamometer, and therefore the local stress of the dynamometer is uneven, pressure measurement is inaccurate, and test deviation is large.
Disclosure of Invention
An object of the application is to provide a pressure measurement device and dynamometry system to realize more accurate pressure measurement effect.
The application provides a pressure measuring device, which comprises a first positioning piece, a second positioning piece and a measuring mechanism;
the first positioning piece and the second positioning piece are arranged at intervals, one of the first positioning piece and the second positioning piece is used for being attached to an object to be detected, and the other one of the first positioning piece and the second positioning piece is used for being attached to a crimping piece; the measuring mechanism is positioned between the first positioning piece and the second positioning piece and used for sensing the pressure between the object to be measured and the crimping piece;
a first stress bulge is formed on one side of the measuring mechanism and/or a second stress bulge is formed on the other side of the measuring mechanism; the first positioning piece abuts against the first stress bulge, and the first positioning piece can turn over for a first preset angle around a first axis; the second positioning piece abuts against the second stress bulge, and the second positioning piece can turn over by a second preset angle around a second axis; the first axis is perpendicular to the second axis.
In the above technical solution, further, through holes are correspondingly formed in the middle portions of the first positioning piece, the second positioning piece and the measuring mechanism, so that the limiting rod sequentially penetrates through the first positioning piece, the second positioning piece and the measuring mechanism.
In the above technical solution, further, the number of the first stress protrusions is two, and the first stress protrusions are arranged on two sides of the through hole at intervals; the convex surface of the first stress bulge is a cylindrical surface, and the axes of the two first stress bulges are collinear;
the number of the second stress bulges is two, and the second stress bulges are arranged on two sides of the through hole at intervals; the convex surface of the second stress bulge is a cylindrical surface, and the axes of the two second stress bulges are collinear;
the distance between the two first stress bulges is equal to the distance between the two second stress bulges.
In the above technical solution, further, the first positioning member is provided with a first positioning groove, and the first stressed protrusion is clamped in the first positioning groove; the second positioning piece is provided with a second positioning groove, and the second stress bulge is clamped in the second positioning groove.
In the above technical solution, further, the measuring mechanism includes a middle cushion cover, a first strain gauge, a second strain gauge and a circuit board;
the first stress bulges and the second stress bulges are positioned on two sides of the middle cushion cover and are pressed to deform the middle cushion cover;
the first strain gauge and the second strain gauge are arranged on two sides of the middle cushion cover, wherein the first strain gauge and the first stress bulge are positioned on different sides of the middle cushion cover and are correspondingly arranged; the second strain gauge and the second stress bulge are positioned on the opposite side of the middle cushion cover and are correspondingly arranged;
the circuit board is electrically connected with the first strain gauge and the second strain gauge so as to convert the deformation of the middle cushion cover into a stress value.
In the technical scheme, furthermore, two sides of the middle cushion cover are respectively provided with a mounting groove and a wiring groove which are communicated with each other;
the first strain gauge and the second strain gauge are respectively installed in the installation grooves of the corresponding sides, and the connecting lines of the first strain gauge and the circuit board and the connecting lines of the second strain gauge and the circuit board are respectively installed in the wiring grooves of the corresponding sides.
In the above technical solution, further, the measuring mechanism further includes a housing;
the shell forms a first accommodating part and a second accommodating part which are communicated with each other;
the first accommodating part forms a first cavity, and the middle cushion cover is arranged in the first cavity; the first accommodating part is provided with a first opening and a second opening, the first stress bulge extends out of the first opening, and the second stress bulge extends out of the second opening;
the second accommodating part forms a second cavity, and the circuit board is installed in the second cavity.
In the above technical solution, further, the measuring mechanism further includes a plug socket, the plug socket is detachably mounted in the second accommodating portion, and the plug socket is used for connecting the circuit board and the telecommunication processor.
In the above technical solution, further, the housing is filled with a sealant.
The application also provides a force measuring system which comprises the pressure measuring device in the scheme.
Compared with the prior art, the beneficial effect of this application is:
the application provides a pressure measurement device is protruding through setting up first atress arch and/or second atress to make first setting element and second setting element can adapt to the roughness of determinand, realize more accurate pressure measurement effect.
The application also provides a force measuring system which comprises the pressure measuring device in the scheme. Based on the above analysis, the force measuring system has the above beneficial effects, and is not described herein again.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a pressure measurement device provided herein;
FIG. 2 is an exploded view of a pressure measurement device provided herein from a first perspective;
FIG. 3 is an exploded view of a pressure measurement device provided herein from a second perspective;
fig. 4 is a schematic structural diagram of a measurement mechanism provided in the present application.
In the figure: 101-a first locator; 102-a second positioning element; 103-a measuring mechanism; 104-an analyte; 105-a crimp; 106-a first force-bearing projection; 107-second force-bearing projection; 108-a through-hole; 109-a limiting rod; 110-a first positioning groove; 111-a second detent; 112-middle cushion cover; 113-a first strain gauge; 114-a second strain gage; 115-a circuit board; 116-a mounting groove; 117-cabling channel; 118-a housing; 119-a first locus of containment; 120-a second locus of containment; 121-a plug receptacle; 122-upper cover; 123-a housing; 124-a first axis; 125-second axis; 126-first opening; 127-second opening.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example one
Referring to fig. 1 to 4, the pressure measuring device provided by the present application includes a first positioning member 101, a second positioning member 102, and a measuring mechanism 103; the first positioning part 101 and the second positioning part 102 are arranged at intervals, one of the first positioning part 101 and the second positioning part 102 is used for being attached to an object to be measured 104, and specifically, the object to be measured 104 can be an installation surface of an object such as a rock wall; the other one of the first positioning element 101 and the second positioning element 102 is used for being attached to a crimping element 105, and the crimping element 105 can be a force application object such as a tray, a pressure plate and the like; the measuring mechanism 103 is located between the first positioning member 101 and the second positioning member 102, and the measuring mechanism 103 is used for sensing the pressure between the object 104 to be measured and the pressing member 105.
A first stress bulge 106 is formed on one side of the measuring mechanism 103 and/or a second stress bulge 107 is formed on the other side of the measuring mechanism 103; the above scheme has three cases:
first, first locating piece 101 offsets with first atress arch 106, and first locating piece 101 can overturn first preset angle around first axis 124, that is to say, first locating piece 101 can use first axis 124 to overturn as the axle, in order to adapt to the inclination of determinand 104 on the first direction, thereby make the pressure that first locating piece 101 receives all apply in first atress arch 106, and first locating piece 101 rotates around first axis 124, the motion route of first locating piece 101 has been simplified, so that the pressure application position of this side is clear and definite, thereby make measuring mechanism 103 can accurately measure pressure.
Secondly, the second positioning element 102 abuts against the second stressed protrusion 107, and the second positioning element 102 can turn over around the second axis 125 by a second preset angle, that is, the second positioning element 102 can turn over around the second axis 125 as an axis to adapt to the inclination angle of the object 104 to be measured in the second direction, so that the pressure applied to the second positioning element 102 is applied to the second stressed protrusion 107, and the second positioning element 102 rotates around the second axis 125, thereby simplifying the movement path of the second positioning element 102, and making the pressure application position on the side clear, so that the measuring mechanism 103 can accurately measure the pressure.
Thirdly, a first stress protrusion 106 and a second stress protrusion 107 are respectively disposed on two sides of the measuring mechanism 103, so that the first positioning element 101 can be turned around the first axis 124, the second positioning element 102 can be turned around the second axis 125, and the first axis 124 is perpendicular to the second axis 125, which is equivalent to forming a perpendicular X-axis and a perpendicular Y-axis, and the device can be disassembled on the first axis 124 and the second axis 125 regardless of the inclination direction of the object 104, so that the device can adjust the flatness in two perpendicular directions, thereby adapting to the surface of the object 104, and making the device have a wider application range.
Pressure that first locating part 101 receives all applies first atress arch 106, and pressure that first locating part 101 receives all applies first atress arch 106, concentrates the universal structure of cross that first atress arch 106 and the protruding 107 formation of second atress with uneven effect pressure on, does not have other parts to decompose pressure to make measuring mechanism 103 can more accurate measurement pressure.
In an optional scheme of this embodiment, through holes 108 are correspondingly formed in the middle portions of the first positioning element 101, the second positioning element 102 and the measuring mechanism 103, so that the limiting rod 109 sequentially passes through the first positioning element 101, the second positioning element 102 and the measuring mechanism 103.
In this embodiment, generally, a limiting rod 109 such as an anchor rod is disposed on the rock wall, one end of the anchor rod is connected to the rock wall, the anchor rod passes through the pressure testing device, and the other end of the anchor rod is connected to the tray, so as to ensure the fixation of the pressure testing device, prevent radial displacement between the first positioning element 101, the second positioning element 102 and the measuring mechanism 103, and achieve a better pressure testing effect.
It should be noted that the diameter of the through hole 108 is larger than that of the limiting rod 109, so that the first positioning element 101 and the second positioning element 102 can perform a turning function.
In an optional scheme of this embodiment, the number of the first stress protrusions 106 is two, and the first stress protrusions are arranged at two sides of the through hole 108 at intervals to ensure that the two sides of the device are stressed in a balanced manner; the convex surface of the first stress bulge 106 is a cylindrical surface, and the axes of the two first stress bulges 106 are collinear, so that the turning and guiding directions of the first positioning piece 101 are consistent; the number of the second stress protrusions 107 is two, and the second stress protrusions are arranged on two sides of the through hole 108 at intervals; the convex surface of the second stress protrusion 107 is a cylindrical surface, the axes of the two second stress protrusions 107 are collinear, and the arrangement principle of the second stress protrusion 107 is identical to that of the first stress protrusion 106, and is not described herein again.
The distance between the two first force-bearing protrusions 106 is equal to the distance between the two second force-bearing protrusions 107, and the first axis 124 and the second axis 125 are vertically arranged, so that when the first positioning member 101 and the second positioning member 102 are turned over, the applied pressure can be uniformly distributed on both sides, so that the measuring mechanism 103 can further accurately measure the pressure.
In an optional scheme of this embodiment, the first positioning member 101 is provided with a first positioning groove 110, and the first stressed protrusion 106 is clamped in the first positioning groove 110; the second positioning element 102 is provided with a second positioning groove 111, and the second stressed protrusion 107 is clamped in the second positioning groove 111, so that the first positioning element 101 and the first stressed protrusion 106 cannot deviate in the radial direction, and the second positioning element 102 and the second stressed protrusion 107 cannot deviate in the radial direction, thereby further ensuring the accuracy of the measured pressure.
Example two
The pressure measuring device in the second embodiment is an improvement on the above embodiment, and the technical contents disclosed in the above embodiment are not described repeatedly, and the contents disclosed in the above embodiment also belong to the contents disclosed in the second embodiment.
Referring to fig. 2 to 4, in an alternative embodiment of the present invention, the measuring mechanism 103 includes a middle cushion cover 112, a first strain gauge 113, a second strain gauge 114 and a circuit board 115; the first stress bulge 106 and the second stress bulge 107 are positioned at two sides of the middle cushion cover 112, and the first stress bulge 106 and the second stress bulge 107 are pressed to deform the middle cushion cover 112; the first strain gauge 113 and the second strain gauge 114 are arranged at two sides of the middle cushion cover 112; specifically, first foil gage 113 and the protruding 106 of first atress are located the different side of middle part cushion cover 112 and correspond the setting, second foil gage 114 and the protruding 107 of second atress are located the different side of middle part cushion cover 112 and correspond the setting, protruding 107 atress are pressed so that middle part cushion cover 112 produces deformation when first atress, further drive be located correspond set up in the first foil gage 113 and the second foil gage 114 of different side can produce strain effect for measure the deflection of middle part cushion cover 112 atress.
The circuit board 115 is electrically connected with the first strain gauge 113 and the second strain gauge 114 to convert the deformation of the middle cushion cover 112 into a stress value. Specifically, the circuit board 115 is a strain gauge calibration adjustment circuit board 115 in which a bridge strain gauge circuit calibrates an electrical signal of a stress deformation measured by a strain gauge uniformly by using adjustment electronic components.
In the optional scheme of this embodiment, two sides of the middle cushion cover 112 are respectively provided with an installation groove 116 and a wiring groove 117 which are communicated with each other; the first strain gauge 113 and the second strain gauge 114 are respectively installed in the installation grooves 116 on the corresponding sides, and the connection line between the first strain gauge 113 and the circuit board 115 and the connection line between the second strain gauge 114 and the circuit board 115 are respectively installed in the wiring grooves 117 on the corresponding sides, so that the first strain gauge 113, the second strain gauge 114 and the communication signal line are prevented from being damaged during the inclination adjustment process of the first positioning member 101 and the second positioning member 102.
In an alternative of this embodiment, the measuring mechanism 103 further comprises a housing 118; the casing 118 forms a first receptacle 119 and a second receptacle 120 in communication; the first receiving portion 119 forms a first cavity in which the middle cushion 112 is mounted; the first accommodating portion 119 is provided with a first opening 126 and a second opening 127, the first force-bearing protrusion 106 extends from the first opening 126, and the second force-bearing protrusion 107 extends from the second opening 127; the second accommodating portion 120 forms a second cavity in which the circuit board 115 is mounted.
In this embodiment, the middle cushion cover 112 and the circuit board 115 are respectively installed in the first accommodating portion 119 and the second accommodating portion 120, and the first accommodating portion 119 protects the middle cushion cover 112, so as to prevent the middle cushion cover 112 from acting on other components, which may cause inaccurate measurement and damage to other components.
Optionally, the housing 118 includes a housing 123 and a cover 122 that are detachably connected to facilitate assembly and disassembly of the center cushion 112 and other components.
In an alternative of this embodiment, the measuring mechanism 103 further includes a plug seat 121, the plug seat 121 is detachably mounted in the second accommodating portion 120, and the plug seat 121 is used for connecting the circuit board 115 and the telecommunication processor.
In this embodiment, the plug receptacle 121 may be an aviation plug, and the plug receptacle 121 connects the circuit board 115 and the telecommunication processor, so as to upload the calibrated electrical signal collection process of the pressure measurement device to the telecommunication device. The electric signal processor is divided into an off-line infrared or Bluetooth acquisition type telecommunication processor, a wired real-time online transmission type telecommunication processor and a wireless real-time online transmission type telecommunication processor, and the electric signals are uploaded to a server for centralized processing analysis or a cloud server for processing analysis.
In an optional solution of this embodiment, the casing 118 is filled with a sealant.
In this embodiment, after the main body of the measuring mechanism 103 of the pressure measuring device is debugged and installed, a treatment process of integral glue filling and sealing can be adopted to ensure the use safety and stability in a special environment. The main body part of the measuring mechanism 103 in the middle part is inconvenient to disassemble and can be scrapped after force measurement and use, and the recyclable aviation plug and the electric signal processor structure are disassembled for recycling and are connected with the main body part of the new measuring mechanism 103 for use through the aviation plug.
EXAMPLE III
An embodiment of the present application provides a force measuring system, including the pressure measuring device of any of the above embodiments, so that all the beneficial technical effects of the pressure measuring device of any of the above embodiments are achieved, and details are not repeated herein.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application. Moreover, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments.
Claims (10)
1. A pressure measuring device is characterized by comprising a first positioning piece, a second positioning piece and a measuring mechanism;
the first positioning piece and the second positioning piece are arranged at intervals, one of the first positioning piece and the second positioning piece is used for being attached to an object to be detected, and the other one of the first positioning piece and the second positioning piece is used for being attached to a crimping piece; the measuring mechanism is positioned between the first positioning piece and the second positioning piece and used for sensing the pressure between the object to be measured and the crimping piece;
a first stress bulge is formed on one side of the measuring mechanism and/or a second stress bulge is formed on the other side of the measuring mechanism; the first positioning piece abuts against the first stress bulge, and the first positioning piece can turn over for a first preset angle around a first axis; the second positioning piece abuts against the second stress bulge, and the second positioning piece can turn over by a second preset angle around a second axis; the first axis is perpendicular to the second axis.
2. The pressure measuring device of claim 1, wherein the first positioning member, the second positioning member and the measuring mechanism are provided with through holes at their middle portions, so that a limiting rod sequentially passes through the first positioning member, the second positioning member and the measuring mechanism.
3. The pressure measurement device according to claim 2, wherein the number of the first force-bearing protrusions is two, and the first force-bearing protrusions are arranged on two sides of the through hole at intervals; the convex surface of the first stress bulge is a cylindrical surface, and the axes of the two first stress bulges are collinear;
the number of the second stress bulges is two, and the second stress bulges are arranged on two sides of the through hole at intervals; the convex surface of the second stress bulge is a cylindrical surface, and the axes of the two second stress bulges are collinear;
the distance between the two first stress bulges is equal to the distance between the two second stress bulges.
4. The pressure measuring device of claim 1, wherein the first positioning member defines a first positioning groove, and the first force-bearing protrusion is engaged with the first positioning groove; the second positioning piece is provided with a second positioning groove, and the second stress bulge is clamped in the second positioning groove.
5. The pressure measurement device of claim 1, wherein the measurement mechanism comprises a middle pillow cover, a first strain gage, a second strain gage, and a circuit board;
the first stress bulges and the second stress bulges are positioned on two sides of the middle cushion cover and are pressed to deform the middle cushion cover;
the first strain gauge and the second strain gauge are arranged on two sides of the middle cushion cover, wherein the first strain gauge and the first stress bulge are positioned on different sides of the middle cushion cover and are correspondingly arranged; the second strain gauge and the second stress bulge are positioned on the opposite side of the middle cushion cover and are correspondingly arranged;
the circuit board is electrically connected with the first strain gauge and the second strain gauge so as to convert the deformation of the middle cushion cover into a stress value.
6. The pressure measuring device of claim 5, wherein the middle cushion cover is provided with a mounting groove and a wiring groove on two sides thereof respectively, the mounting groove and the wiring groove being communicated with each other;
the first strain gauge and the second strain gauge are respectively installed in the installation grooves of the corresponding sides, and the connecting lines of the first strain gauge and the circuit board and the connecting lines of the second strain gauge and the circuit board are respectively installed in the wiring grooves of the corresponding sides.
7. The pressure measurement device of claim 5, wherein the measurement mechanism further comprises a housing;
the shell forms a first accommodating part and a second accommodating part which are communicated with each other;
the first accommodating part forms a first cavity, and the middle cushion cover is arranged in the first cavity; the first accommodating part is provided with a first opening and a second opening, the first stress bulge extends out of the first opening, and the second stress bulge extends out of the second opening;
the second accommodating part forms a second cavity, and the circuit board is installed in the second cavity.
8. The pressure measurement device of claim 7, wherein the measurement mechanism further comprises a plug receptacle removably mounted to the second receptacle, the plug receptacle for connecting the circuit board and a telecommunications processor.
9. The pressure measurement device of claim 7, wherein the housing is filled with a sealant.
10. Force measuring system, characterized in that it comprises a pressure measuring device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010583028.8A CN111595492A (en) | 2020-06-23 | 2020-06-23 | Pressure measuring device and force measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010583028.8A CN111595492A (en) | 2020-06-23 | 2020-06-23 | Pressure measuring device and force measuring system |
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| Publication Number | Publication Date |
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| CN111595492A true CN111595492A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010583028.8A Pending CN111595492A (en) | 2020-06-23 | 2020-06-23 | Pressure measuring device and force measuring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022242160A1 (en) * | 2021-05-20 | 2022-11-24 | 中国第一汽车股份有限公司 | Transfer case assembly clutch axial pressure calibration apparatus and calibration method thereof |
| CN117949304A (en) * | 2024-03-26 | 2024-04-30 | 河海大学 | Test device and method for simulating deep constant-resistance anchor rod drawing |
-
2020
- 2020-06-23 CN CN202010583028.8A patent/CN111595492A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022242160A1 (en) * | 2021-05-20 | 2022-11-24 | 中国第一汽车股份有限公司 | Transfer case assembly clutch axial pressure calibration apparatus and calibration method thereof |
| CN117949304A (en) * | 2024-03-26 | 2024-04-30 | 河海大学 | Test device and method for simulating deep constant-resistance anchor rod drawing |
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