CN114893492A - Intelligent gasket for monitoring bolt pretightening force change in real time - Google Patents
Intelligent gasket for monitoring bolt pretightening force change in real time Download PDFInfo
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- CN114893492A CN114893492A CN202210313365.4A CN202210313365A CN114893492A CN 114893492 A CN114893492 A CN 114893492A CN 202210313365 A CN202210313365 A CN 202210313365A CN 114893492 A CN114893492 A CN 114893492A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 89
- 230000008859 change Effects 0.000 title description 4
- 230000008093 supporting effect Effects 0.000 claims abstract description 29
- 230000003313 weakening effect Effects 0.000 claims abstract description 8
- 239000011888 foil Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 238000003780 insertion Methods 0.000 abstract description 5
- 230000037431 insertion Effects 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 description 5
- 230000001788 irregular Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
- F16B31/028—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load with a load-indicating washer or washer assembly
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
- G01L5/243—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed using washers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses an intelligent gasket for monitoring the variation of bolt pretightening force in real time, which relates to the technical field of monitoring and comprises a gasket, wherein a supporting component and a monitoring component which are connected are arranged in the gasket, first weakening grooves are formed in two sides of the gasket, and two first cavities and two second cavities are formed in the gasket. The deformation of the gasket is limited through the limiting slot and the limiting insertion piece which are inserted and connected, so that two end faces of the gasket are always kept parallel in the deformation process, the side face of the gasket is deformed by uniform deformation, the effectiveness of monitoring data of the monitoring part is further improved, the monitoring efficiency of related technicians is improved, the telescopic rod is matched with the second limiting hole to support the sliding rod, the monitoring part fixedly installed on the outer side of the sliding rod is always located in the middle of the gasket, the monitoring part is located at the position with the largest deformation of the gasket, and the monitoring effect of the monitoring part is improved.
Description
Technical Field
The invention relates to the technical field of monitoring, in particular to an intelligent gasket for monitoring bolt pretightening force change in real time.
Background
The bolt is a mechanical part for connecting and fastening two parts with through holes, and becomes one of the most common mechanical parts in daily life due to the characteristics of low cost and strong practicability, thereby playing an irreplaceable role. In the process of screwing the bolt, due to the action of screwing torque, force along the axial lead direction of the bolt is generated between the bolt and the connected piece, and the force is called bolt pretightening force. The pretightening force can improve the reliability and the anti-loosening capability of bolt connection and the fatigue strength of the bolt, and enhance the tightness and the rigidity of connection. However, too high or too low bolt pretension force can cause the connection of parts to fail, resulting in unnecessary loss. Therefore, the pretightening force of the bolt must be monitored, so that the pretightening force relaxation condition is mastered, the connection of the bolt is ensured to be stable and reliable, and unnecessary loss caused by the relaxation of the bolt is reduced.
The gasket that current is used for monitoring bolt pretightning force and changes is the rubber material mostly, there is not effective bearing structure, at the in-process of cooperation bolt installation, receive the effect influence of bolt tightening force, irregular deformation can take place, calculate the bolt pretightning force through this irregular deflection and increased the monitoring degree of difficulty, the monitoring efficiency is reduced, the most fixed mounting of the monitoring device who has now simultaneously is inside the gasket, the deformation volume of unable real-time supervision gasket deformation maximum position department, therefore, this application provides an intelligent gasket that is used for real-time supervision bolt pretightning force to change and satisfies the demand.
Disclosure of Invention
An object of the application provides an intelligent gasket for real-time supervision bolt pretightning force changes, deformation through spacing slot and spacing inserted sheet of pegging graft mutually limits the gasket, make the both ends face of gasket remain parallel throughout in deformation process, and then make the side of gasket take place to warp with even deformation volume, the validity of monitoring unit monitoring data has further been improved, improve relevant technical staff's monitoring efficiency, it supports to provide the slide bar through the spacing pore pair of telescopic link cooperation second, so that slide bar outside fixed mounting's monitoring unit is located the middle part of gasket all the time, so that monitoring unit is located gasket deformation volume maximum position department constantly, improve monitoring unit's monitoring effect.
In order to achieve the above purpose, the present application provides the following technical solutions: an intelligent gasket for monitoring the variation of bolt pretightening force in real time comprises a gasket, wherein a supporting part and a monitoring part which are connected are installed in the gasket, first weakening grooves are formed in two sides of the gasket, two first cavities and two second cavities are formed in the gasket, a third cavity is formed in the gasket and is positioned in the middle of the two second cavities, the third cavity is positioned in the middle of the two first cavities, a plurality of communicating grooves are formed in annular arrays on two sides of the third cavity, the second cavity, the third cavity and the communicating grooves are communicated, a first limiting groove and a third limiting groove are formed in the gasket, the third cavity is positioned in the middle of the first limiting groove and the third limiting groove, two groups of second limiting grooves communicated with the first limiting groove are formed in an annular array on one side of the first limiting groove, two groups of fourth limiting grooves communicated with the third limiting grooves are formed in one side of the third limiting groove in an annular array; the supporting component is used for increasing the supporting strength of the gasket, and the monitoring component is used for monitoring the deformation quantity of the gasket in real time.
Preferably, the supporting component includes fixed mounting and is in first supporting ring of third spacing inslot, one side of first supporting ring be annular array install a plurality of with the fixed spacing slot that cup joints of fourth spacing groove, first spacing inslot fixed mounting has piezoelectric thin slice, one side of piezoelectric thin slice be annular array install a plurality of with the fixed spacing inserted sheet that cup joints of second spacing groove.
Preferably, first supporting ring, spacing slot with the integrative vulcanization of gasket, piezoelectricity thin slice spacing inserted sheet with the integrative vulcanization of gasket.
Preferably, the limiting insertion piece is inserted into the limiting slot, two second limiting holes are formed in one side of the second cavity, and a sliding rod is sleeved in each second limiting hole in a sliding mode.
Preferably, the monitoring part includes with two same laser diode of slide bar outside fixed mounting, inversion telescope and diaphragm, it is located to invert the telescope laser diode with between the diaphragm, one side fixed mounting of first support ring has triode and battery, the inner wall of spacing slot is provided with piezoceramics piece, the triode the battery laser diode and a plurality of piezoceramics piece electric connection constitutes the closed circuit of a series connection.
Preferably, the inner walls of the two sides of the third cavity are provided with a plurality of strain gauges in an annular array mode, the strain gauges are all electrically connected with the same battery, one side of the gasket is fixedly sleeved with a hose penetrating through and extending into the third cavity, one end of each strain gauge is fixedly connected with a data transmission line, and the data transmission lines pass through the third cavity and the hose and extend out of the gasket.
Preferably, the triode is a 9014 triode, and the b pole of the triode is electrically connected with one end of the piezoelectric ceramic piece
Preferably, two first limiting holes are formed in one side of the third limiting groove, telescopic rods penetrating through and extending into the third cavity are fixedly sleeved in the two first limiting holes respectively, and one ends of the two telescopic rods are fixedly sleeved with the two slide rods respectively.
In conclusion, the technical effects and advantages of the invention are as follows:
1. the bolt-tightening device is reasonable in structure, when a bolt is tightened, one side of the gasket is squeezed by the nut, deformation of the gasket is increased through the first weakening groove, the first cavity, the second cavity and the third cavity which are formed in the gasket, so that monitoring of a monitoring part is facilitated, monitoring efficiency of the monitoring part is improved, the end face of the gasket is supported by the supporting part, irregular deformation of the gasket in the squeezing process is prevented, monitoring difficulty of bolt pre-tightening force is reduced, and accuracy and effectiveness of monitoring data are improved;
2. according to the invention, one side of the gasket is supported by the piezoelectric sheet, the other side of the gasket is supported by the first support ring, and the deformation of the gasket is limited by the limit slots and the limit insertion pieces which are inserted with each other, so that the two end faces of the gasket are always parallel in the deformation process, and further the side face of the gasket is deformed by uniform deformation, the effectiveness of monitoring data of a monitoring part is further improved, and the monitoring efficiency of related technicians is improved;
3. according to the invention, the telescopic rod is matched with the second limiting hole to support the sliding rod, so that the monitoring component fixedly mounted on the outer side of the sliding rod is always positioned in the middle of the gasket, the monitoring component is always positioned at the position with the largest deformation amount of the gasket, and the monitoring effect of the monitoring component is improved;
4. when the bolt is installed, the bolt extrudes one end of the gasket through the nut, the piezoelectric sheet is extruded through the gasket, the piezoelectric sheet generates an electric signal through extrusion, the signal is transmitted to the limiting slots which are inserted with the piezoelectric sheet, at the moment, the limiting slots are switched in the series closed loop and the series closed loop is electrified, the laser diode is electrified to emit laser, the light beam is expanded and collimated through the inverted telescope, a strong laser beam is formed immediately after the light beam after being expanded and collimated passes through the diaphragm, the deformation condition of the gasket can be clearly observed through the strong laser, and therefore the pre-tightening force of the gasket is monitored in real time.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 diagram of a three-dimensional structure of an intelligent gasket for monitoring changes in bolt pre-tightening force in real time;
FIG. 2 is a schematic sectional view of an intelligent gasket for monitoring changes in bolt pretension in real time;
FIG. 3 is a schematic view of a partially cut-away perspective structure of the gasket, the supporting member and the detecting member after assembly;
FIG. 4 is a schematic diagram of a partially cut-away three-dimensional structure of an intelligent gasket for monitoring the variation of bolt pretightening force in real time;
FIG. 5 is an enlarged view of the structure at A in FIG. 4;
fig. 6 is a partially sectional perspective view of the gasket.
In the figure: 1. a gasket; 2. a first limit groove; 3. a second limit groove; 4. a third limiting groove; 5. a fourth limit groove; 6. a first weakening tank; 7. a first cavity; 8. a second cavity; 9. a third cavity; 10. a communicating groove; 11. a first limit hole; 12. a second limiting hole; 13. a first support ring; 14. limiting slots; 15. a piezoelectric sheet; 16. a limiting insertion sheet; 17. a triode; 18. a battery; 19. a telescopic rod; 20. a slide bar; 21. a laser diode; 22. inverting the telescope; 23. a diaphragm; 24. a strain gauge; 25. a hose.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Example (b): referring to fig. 1-6, an intelligent gasket for real-time monitoring of bolt pretightening force variation includes a gasket 1, a support component and a monitoring component are installed in the gasket 1, first weakening grooves 6 are formed on both sides of the gasket 1, two first cavities 7 and second cavities 8 are formed in the gasket 1, a third cavity 9 is formed in the gasket 1, the third cavity 9 is located in the middle of the two second cavities 8, the third cavity 9 is located in the middle of the two first cavities 7, a plurality of communicating grooves 10 are formed in the two sides of the third cavity 9 in an annular array, the second cavity 8, the third cavity 9 and the communicating grooves 10 are communicated, a first limiting groove 2 and a third limiting groove 4 are formed in the gasket 1, the third cavity 9 is located in the middle of the first limiting groove 2 and the third limiting groove 4, two sets of second limiting grooves 3 communicated with the first limiting groove 2 are formed in the annular array on one side of the first limiting groove 2, one side of the third limiting groove 4 is provided with two groups of fourth limiting grooves 5 which are communicated with the third limiting groove 4 in an annular array; the supporting component is used for increasing the supporting strength of the gasket 1, and the monitoring component is used for monitoring the deformation quantity of the gasket 1 in real time.
When screwing up the bolt, one side of gasket 1 is extruded by the nut, first weakening groove 6, first cavity 7, second cavity 8, the deformation volume of gasket 1 is increased to third cavity 9 offered in gasket 1, so that monitoring parts monitor, improve monitoring parts's monitoring efficiency, support gasket 1's terminal surface through the supporting component, prevent that gasket 1 from taking place irregular deformation in receiving the extrusion process, reduce the monitoring degree of difficulty of bolt pretightning force, monitoring data accuracy and validity have been improved.
In this embodiment, the supporting component includes first supporting ring 13 of fixed mounting in third spacing inslot 4, and one side of first supporting ring 13 is that the annular array installs a plurality of spacing slots 14 that fixedly cup joint with fourth spacing groove 5, and fixed mounting has piezoelectric thin slice 15 in first spacing inslot 2, and one side of piezoelectric thin slice 15 is that the annular array installs a plurality of spacing inserted sheets 16 that fixedly cup joint with second spacing groove 3, and spacing inserted sheet 16 is pegged graft with spacing slot 14.
Support one side of gasket 1 through piezoelectric sheet 15, support the opposite side of gasket 1 through first supporting ring 13, limit slot 14 and the deformation of spacing inserted sheet 16 through pegging graft mutually and limit gasket 1, make the both ends face of gasket 1 remain the parallel throughout at deformation process, and then make the side of gasket 1 take place to warp with even deformation volume, the validity of monitoring component monitoring data has further been improved, improve correlation technique personnel's monitoring efficiency.
In this embodiment, first support ring 13, spacing slot 14 with gasket 1 an organic whole vulcanizes, piezoelectric sheet 15 spacing inserted sheet 16 with gasket 1 an organic whole vulcanizes, avoids gasket 1 to receive after the extrusion to separate with the supporting component, further improves the supporting effect of supporting component to gasket 1.
In this embodiment, two second limiting holes 12 are formed in one side of each of the two second cavities 8, a sliding rod 20 is slidably sleeved in each of the two second limiting holes 12, the sliding rod 20 is limited in a sliding and sleeving manner, the inner walls of two sides of the third cavity 9, which are prevented from being deformed, are used for deviating the sliding rod 20, and the support stability of the sliding rod 20 is improved.
In this embodiment, the monitoring part includes with two slide bars 20 outside fixed mounting the same laser diode 21, invert telescope 22 and diaphragm 23, invert telescope 22 is located between laser diode 21 and diaphragm 23, one side fixed mounting of first support ring 13 has triode 17 and battery 18, triode 17, battery 18, laser diode 21 and a plurality of spacing slot 14 electric connection and constitute the closed circuit of a series connection, the both sides inner wall of third cavity 9 is the annular array and is provided with a plurality of foil gages 24, a plurality of foil gages 24 all with same battery 18 electric connection, triode 17 is the 9014 triode, triode 17's b utmost point with the one end electric connection of piezoceramics piece.
When the bolt is installed, the bolt extrudes one end of the gasket 1 through the nut, the piezoelectric sheet 15 is extruded through the gasket 1, the piezoelectric sheet 15 generates an electric signal through extrusion, the signal is transmitted to the limiting slots 14 which are inserted with the piezoelectric sheet, at the moment, the limiting slots 14 are switched in a series closed loop and power on the series closed loop, the laser diode 21 is powered on to emit laser, the light beam is expanded and collimated through the inverted telescope 22, a strong laser beam is formed immediately after the light beam after expanded and collimated passes through the diaphragm 23, the deformation condition of the gasket 1 can be clearly observed through the strong laser, and therefore the pre-tightening force of the gasket 1 can be monitored in real time.
The inner walls of the two sides of the third cavity 9 are connected discontinuously by arranging the communicating grooves 10, so that the deformation space of the inner walls of the two sides of the third cavity 9 is increased, the supporting strength of the two sides of the third cavity 9 is reduced, the deformation quantity of the inner walls of the two sides of the third cavity 9 is increased, and the monitoring effect of the strain gauge 24 is further improved.
In this embodiment, two first spacing holes 11 have been seted up to one side of third spacing groove 4, the telescopic link 19 that runs through and extend to in the third cavity 9 has been fixed cup jointed respectively in two first spacing holes 11, the one end of two telescopic links 19 is fixed cup jointed with two slide bars 20 respectively, provide the support to slide bar 20 through telescopic link 19 cooperation second spacing hole 12, so that slide bar 20 outside fixed mounting's monitoring part is located the middle part of gasket 1 all the time, so that monitoring part is located gasket 1 deformation volume maximum position department constantly, improve monitoring part's monitoring effect.
In this embodiment, the fixed hose 25 that has cup jointed to run through and extend to in the third cavity 9 in one side of gasket 1, not drawing in the equal fixedly connected with data transmission line chart of a plurality of foil gauges 24, not drawing in a plurality of data transmission line charts through third cavity 9 and hose 25 and extend to outside the gasket 1, be connected the other end and the monitoring instrument of data transmission line, and then the real-time supervision data of direct observation foil gauge 24, the reliability of monitoring result is further improved through the data comparison of a plurality of foil gauges 24.
The working principle of the invention is as follows:
when the bolt is installed, the bolt extrudes one end of the gasket through the nut, the piezoelectric sheet is extruded through the gasket, the piezoelectric sheet generates an electric signal by extrusion, the signal is transmitted to the limit slots which are inserted with the piezoelectric sheet, at the moment, the limit slots are switched in the series closed loop and electrify the series closed loop, so that the laser diode is electrified to emit laser, the beam is expanded and collimated through the inverted telescope, a beam of strong laser is formed immediately after the beam which is expanded and collimated passes through the diaphragm, the deformation condition of the gasket can be clearly observed through the strong laser, and the pre-tightening force of the gasket is monitored in real time;
when the bolt is screwed, one side of the gasket is extruded by the nut, the deformation amount of the gasket is increased through the first weakening groove, the first cavity, the second cavity and the third cavity which are formed in the gasket, so that the monitoring of the monitoring part is facilitated, the monitoring efficiency of the monitoring part is improved, the end face of the gasket is supported through the supporting part, the gasket is prevented from being deformed irregularly in the extruding process, the monitoring difficulty of the pretightening force of the bolt is reduced, and the accuracy and the effectiveness of monitoring data are improved;
one side of the gasket is supported through the piezoelectric sheet, the other side of the gasket is supported through the first support ring, and deformation of the gasket is limited through the limit slots and the limit insertion pieces which are mutually inserted, so that two end faces of the gasket are always parallel in the deformation process, the side face of the gasket is deformed by uniform deformation, effectiveness of monitoring data of the monitoring component is further improved, and monitoring efficiency of related technicians is improved;
the telescopic rod is matched with the second limiting hole to support the sliding rod, so that the monitoring part fixedly mounted on the outer side of the sliding rod is always located in the middle of the gasket, the monitoring part is located at the position where the deformation of the gasket is maximum at all times, and the monitoring effect of the monitoring part is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides an intelligent gasket for real-time supervision bolt pretightning force changes, includes gasket (1), its characterized in that: the gasket is characterized in that a supporting component and a monitoring component which are connected are installed in the gasket (1), first weakening grooves (6) are formed in two sides of the gasket (1), two first cavities (7) and two second cavities (8) are formed in the gasket (1), a third cavity (9) is formed in the gasket (1), the third cavity (9) is located in the middle of the two second cavities (8), the third cavity (9) is located in the middle of the two first cavities (7), a plurality of communicating grooves (10) are formed in two sides of the third cavity (9) in an annular array mode, the second cavity (8), the third cavity (9) and the communicating grooves (10) are communicated, a first limiting groove (2) and a third limiting groove (4) are formed in the gasket (1), and the third cavity (9) is located in the middle of the first limiting groove (2) and the third limiting groove (4), two groups of second limiting grooves (3) communicated with the first limiting grooves (2) are formed in one side of the first limiting groove (2) in an annular array mode, and two groups of fourth limiting grooves (5) communicated with the third limiting grooves (4) are formed in one side of the third limiting groove (4) in an annular array mode;
the supporting component is used for increasing the supporting strength of the gasket (1), and the monitoring component is used for monitoring the deformation quantity of the gasket (1) in real time.
2. The intelligent gasket for monitoring the bolt pretightening force variation in real time according to claim 1, wherein: the supporting component includes fixed mounting first supporting ring (13) in third spacing groove (4), one side of first supporting ring (13) be the annular array install a plurality of with fourth spacing groove (5) fixed socket's spacing slot (14), fixed mounting has piezoelectric thin slice (15) in first spacing groove (2), one side of piezoelectric thin slice (15) be the annular array install a plurality of with second spacing groove (3) fixed socket's spacing inserted sheet (16).
3. The intelligent gasket for monitoring the bolt pretightening force variation in real time according to claim 2, wherein; first supporting ring (13), spacing slot (14) with gasket (1) an organic whole vulcanizes, piezoelectricity thin slice (15) spacing inserted sheet (16) with gasket (1) an organic whole vulcanizes.
4. The intelligent gasket for monitoring the bolt pretightening force variation in real time according to claim 2, wherein: spacing inserted sheet (16) with spacing slot (14) are pegged graft, two spacing hole of second (12), two have all been seted up to one side of second cavity (8) the equal slip has cup jointed slide bar (20) in the spacing hole of second (12).
5. The intelligent gasket for monitoring the bolt pretightening force variation in real time according to claim 4, wherein: the monitoring part includes with two slide bar (20) outside fixed mounting's same laser diode (21), invert telescope (22) and diaphragm (23), invert telescope (22) and be located laser diode (21) with between diaphragm (23), one side fixed mounting of first support ring (13) has triode (17) and battery (18), the inner wall of spacing slot (14) is provided with piezoceramics piece, triode (17) battery (18) laser diode (21) and a plurality of piezoceramics piece electric connection constitutes a closed circuit of establishing ties.
6. The intelligent gasket for monitoring the bolt pretightening force variation in real time according to claim 5, wherein: the both sides inner wall of third cavity (9) is annular array and is provided with a plurality of foil gage (24), and is a plurality of foil gage (24) all with same battery (18) electric connection, one side of gasket (1) is fixed to be cup jointed and is run through and extend to hose (25) in third cavity (9), and is a plurality of the equal fixedly connected with data transmission line of one end of foil gage (24), a plurality of data transmission line warp third cavity (9) with hose (25) extend to outside gasket (1).
7. The intelligent gasket for monitoring the bolt pretightening force variation in real time according to claim 5, wherein: the triode (17) is a 9014 triode, and the b pole of the triode (17) is electrically connected with one end of the piezoelectric ceramic piece.
8. The intelligent gasket for monitoring the bolt pretightening force variation in real time according to claim 4, wherein: two first limiting holes (11) are formed in one side of the third limiting groove (4), two telescopic rods (19) which penetrate through and extend into the third cavity (9) are fixedly sleeved in the first limiting holes (11) respectively, and one ends of the two telescopic rods (19) are fixedly sleeved with the two sliding rods (20) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210313365.4A CN114893492B (en) | 2022-03-28 | 2022-03-28 | A intelligent gasket for real-time supervision bolt pretightning force changes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210313365.4A CN114893492B (en) | 2022-03-28 | 2022-03-28 | A intelligent gasket for real-time supervision bolt pretightning force changes |
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| CN114893492A true CN114893492A (en) | 2022-08-12 |
| CN114893492B CN114893492B (en) | 2023-08-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952444A (en) * | 2023-09-20 | 2023-10-27 | 江天科技有限公司 | Intelligent bolt and nut gasket sensor |
| CN118150022A (en) * | 2024-05-08 | 2024-06-07 | 南京航空航天大学 | Real-time identification method for axial load of bolt based on fiber bragg grating strain sensing |
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| CN116952444B (en) * | 2023-09-20 | 2023-12-12 | 江天科技有限公司 | Intelligent bolt and nut gasket sensor |
| CN118150022A (en) * | 2024-05-08 | 2024-06-07 | 南京航空航天大学 | Real-time identification method for axial load of bolt based on fiber bragg grating strain sensing |
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