CN113567032B - Gasket with axial force monitoring function - Google Patents
Gasket with axial force monitoring function Download PDFInfo
- Publication number
- CN113567032B CN113567032B CN202110768123.XA CN202110768123A CN113567032B CN 113567032 B CN113567032 B CN 113567032B CN 202110768123 A CN202110768123 A CN 202110768123A CN 113567032 B CN113567032 B CN 113567032B
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- CN
- China
- Prior art keywords
- annular
- gasket
- axial force
- working module
- monitoring function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present utility model relates to a gasket with an axial force monitoring function, comprising: annular work module and annular backup pad, annular work module integration have pressure sensor and be used for transmitting the wireless transmitter of the data that pressure sensor measured, and backup pad holding tank in the annular backup pad is annular, and the backup pad holding tank has holding tank notch, annular inside wall and annular lateral wall, and the holding tank notch supplies annular work module to pack into along the axial, and annular backup pad is the metal sheet, is equipped with on the annular lateral wall and prevents shielding opening. The utility model aims to provide a gasket with an axial force monitoring function, which is used for solving the problem of low installation efficiency caused by the fact that a pressure sensor and the gasket are required to be assembled on site in the conventional device for detecting the axial force of a bolt.
Description
Technical Field
The utility model relates to a gasket with an axial force monitoring function.
Background
The installation of large-scale equipment or important equipment is carried out through the bolt at present, and when the bolt is used as the fastener of key department, the axial stress of control bolt, i.e. bolt pretightning force, is usually required to be accurately detected to guarantee the security and the reliability of connection. The traditional bolt pretightening force measuring method generally adopts a torque wrench to measure pretightening force, but the pretightening force measured by the torque wrench is unreliable, firstly, the torque wrench needs to be regularly checked and maintained, and secondly, the torque wrench is easily influenced by human factors or other factors in practical application.
The Chinese patent with the publication number of CN203130381U discloses a tower capable of detecting the bolt shaft force on line, wherein the tower is provided with at least two tower cylinders, each two adjacent tower cylinders are divided into an upper tower cylinder and a lower tower cylinder, the bottom of the upper tower cylinder is provided with an upper flange, the top of the lower tower cylinder is provided with a lower flange, the upper flange and the lower flange are connected through bolts, a lower gasket and an annular pressure sensor are arranged between the bolts and the lower flange, the annular pressure sensor is provided with a lead, the lead is connected with a control cabinet through a wiring row, and whether the bolts are loose or not can be judged in real time by transmitting the bolt shaft force information detected by the pressure sensor to the control cabinet. But adopt the device to detect bolt axial force and need on-the-spot equipment pressure sensor and packing ring, installation effectiveness is lower to still need connect lead wire and wiring row between pressure sensor and the switch board, the structure is comparatively complicated, uses comparatively inconveniently.
Disclosure of Invention
The utility model aims to provide a gasket with an axial force monitoring function, which is used for solving the problem of low installation efficiency caused by the fact that a pressure sensor and the gasket are required to be assembled on site in the conventional device for detecting the axial force of a bolt.
The technical scheme of the gasket with the axial force monitoring function is as follows:
the gasket with an axial force monitoring function includes:
the annular working module is integrated with a pressure sensor and a wireless transmitter for transmitting data measured by the pressure sensor;
the annular supporting plate is provided with a supporting plate center hole for the bolts to pass through and a supporting plate accommodating groove for accommodating the annular working module, the supporting plate accommodating groove is annular, and the supporting plate accommodating groove is provided with an accommodating groove notch, an annular inner side wall and an annular outer side wall; the annular inner side wall and the annular outer side wall are arranged at intervals in the radial direction of the annular supporting plate;
the annular supporting plate is a metal plate, and an anti-shielding opening is formed in the annular outer side wall.
The beneficial effects are that: the gasket with the axial force monitoring function comprises the annular working module and the annular supporting plate, the annular working module is integrated with the pressure sensor and the wireless transmitter, the annular working module is arranged in the supporting plate accommodating groove, when the axial force of the bolt is detected, the gasket is arranged on the bolt needing to monitor the axial force, the annular working module in the gasket can transmit the axial force data of the bolt measured by the pressure sensor through the wireless transmitter, the gasket does not need to be assembled on site when in use, the installation efficiency is high, and the gasket is more convenient to use.
Further, the gasket further includes an annular cover plate for covering the receiving groove notch.
The beneficial effects are that: the annular cover plate can protect the annular working module, so that abrasion of the annular working module in the use process is reduced, and the service life of the annular working module is effectively prolonged.
Further, the annular cover plate is provided with an annular bulge which stretches into the supporting plate accommodating groove, and the annular bulge is used for being in extrusion fit with the annular working module in the axial direction.
The beneficial effects are that: the annular bulge is arranged, so that the annular working module is in closer contact with the annular cover plate and the annular support plate, and the axial force change condition of the bolt can be accurately monitored by the annular working module.
Further, the annular cover plate, the annular working module and the annular supporting plate are fixedly bonded.
The beneficial effects are that: the gasket is assembled more simply and rapidly by adopting an adhesive fixing mode.
Further, nonmetallic filling materials are arranged in the supporting plate accommodating grooves and used for adhering and fixing the annular cover plate, the annular supporting plate and the annular working module.
The beneficial effects are that: the annular cover plate, the annular support plate and the annular working module are bonded and fixed by adopting nonmetallic filling materials, so that the cost is low, and the bonding is more convenient.
Further, the shielding-preventing opening is communicated with the notch of the accommodating groove.
The beneficial effects are that: the shielding opening is prevented with the setting that holding tank notch link up makes the structure of backup pad simpler, the shaping of being convenient for.
Further, the annular working module has a projecting arm projecting from the shield-proof opening, and all or part of the wireless transmitter is provided on the projecting arm.
The beneficial effects are that: the setting of arm that stretches out makes annular work module stretch out from preventing shielding opening, prevents that shielding effect is better.
Further, the annular working module is provided with a protruding arm which protrudes from the shielding opening and is in rotation-stopping fit with the shielding opening along the circumferential direction of the annular working module.
The beneficial effects are that: the extension arm is in anti-rotation fit with the anti-shielding opening, so that the annular working module, the annular cover plate and the annular support plate cannot rotate relatively, and the annular working module is prevented from being worn to influence the normal working of the annular working module.
Further, the groove opening of the accommodating groove of the gasket is open, and the annular working module is in an exposed state.
The beneficial effects are that: the annular supporting plate is simple in structure and convenient to process.
Further, the wireless transmitter is an RFID chip.
The beneficial effects are that: the wireless transmitter has better transmission effect.
Drawings
FIG. 1 is a schematic diagram of a gasket with axial force monitoring function according to an embodiment 1 of the present utility model;
FIG. 2 is a schematic illustration of the connection of washers to bolts;
fig. 3 is a schematic structural view of an embodiment 2 of a gasket with an axial force monitoring function according to the present utility model.
In the figure: 1. an annular support plate; 101. an annular inner sidewall; 102. an annular outer sidewall; 2. an annular working module; 201. a projecting arm; 3. an annular cover plate; 301. an annular protrusion; 4. a support plate accommodating groove; 5. a shielding opening; 6. a bolt; 601. a bolt head; 7. a nut; 8. and a gasket.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The features and capabilities of the present utility model are described in further detail below in connection with the examples.
Specific embodiment 1 of a gasket with an axial force monitoring function according to the present utility model:
as shown in fig. 1 and 2, the gasket 8 with the axial force monitoring function comprises an annular supporting plate 1, an annular working module 2 and an annular cover plate 3, wherein a supporting plate accommodating groove 4 is formed in the annular supporting plate 1, the annular working module 2 is installed in the supporting plate accommodating groove 4, the annular cover plate 3 is covered on the annular supporting plate 1, the annular working module 2 is integrated with a pressure sensor and a wireless transmitter for transmitting data measured by the pressure sensor, the gasket 8 is installed on a bolt 6 for monitoring axial force, the wireless transmitter in the annular working module 2 transmits the axial force data detected by the pressure sensor to a receiving device, in the embodiment, the wireless transmitter is an RFID chip, the receiving device displays the axial force data of the monitored bolt 6, and when the axial force of the bolt 6 is attenuated to a value which does not meet the use requirement, the bolt 6 can be screwed down or replaced in time.
Specific structure of the annular support plate 1 as shown in fig. 1, the annular support plate 1 has a support plate center hole through which the bolts 6 pass and a support plate accommodating groove 4, the support plate accommodating groove 4 is for mounting the annular work module 2, specifically, the support plate accommodating groove 4 is annular, the annular support plate accommodating groove 4 includes an annular inner side wall 101 and an annular outer side wall 102, the annular inner side wall 101 and the annular outer side wall 102 are arranged at intervals radially inside and outside the annular support plate 1, and the opening orientation of the accommodating groove notch of the support plate accommodating groove 4 coincides with the axial direction of the annular support plate 1, and the arrangement of such accommodating groove notch enables the annular work module 2 to be loaded into the support plate accommodating groove 4 in the axial direction. In addition, the annular support plate 1 is a metal plate, the annular outer side wall 102 is provided with a shielding opening 5, and the shielding opening 5 is communicated with the notch of the accommodating groove, and in this embodiment, the shielding opening 5 is rectangular. In other embodiments, the shape of the shield opening may be circular, elliptical, or the like. The shielding effect of the annular support plate 1 of metal on the annular working module 2 is effectively reduced by the shielding-preventing opening 5.
The specific structure of annular apron 3 is as shown in fig. 1, and annular apron 3 is used for covering the holding tank notch of annular backup pad 1, and annular apron 3 has the apron centre bore that supplies bolt 6 to pass, is equipped with the annular protruding 301 that stretches into in backup pad holding tank 4 on annular apron 3, and annular protruding 301 is used for with annular working module 2 in the axial extrusion fit, and annular protruding 301's setting can make annular working module 2 and annular apron 3 and annular backup pad 1's contact more inseparable, at the in-process to bolt 6 axial force monitoring, and annular working module 2 can more accurate monitoring the axial force change condition of bolt 6.
In order to better eliminate the shielding effect of the annular supporting plate 1 and the annular cover plate 3 on the annular working module 2, the annular working module 2 is provided with a projecting arm 201, the RFID chip is arranged on the projecting arm 201, and the projecting arm 201 projects from the shielding-preventing opening 5, so that the annular working module 2 can better transmit information with a receiving device.
In addition, the protruding arms 201 are matched with the anti-shielding openings 5 in a rotation-stopping mode along the circumferential direction of the annular working module 2, so that the annular working module 2, the annular cover plate 3 and the annular supporting plate 1 cannot rotate relatively, and the annular working module 2 is prevented from being worn to influence the normal working of the annular working module 2.
More specifically, the annular cover plate 3, the annular working module 2 and the annular support plate 1 are fixed by bonding, and in this embodiment, the support plate accommodating groove 4 is filled with resin which bonds and fixes the annular cover plate 3, the annular working module 2 and the annular support plate 1. In other embodiments, the bonding operation may also be performed with an inorganic glue or other non-metallic filler.
As shown in fig. 2, the washers 8 may be mounted on one side of the nut 7 or on one side of the bolt head 601 during use of the washers 8, and furthermore, the axial force of the plurality of sets of bolts 6 mounted with the washers 8 may be monitored simultaneously using the receiving means.
The washer 8 with the axial force monitoring function does not need to be assembled on site when in use, and the washer 8 is directly arranged on the bolt 6 needing to monitor the axial force, so that the washer is high in installation efficiency and convenient to use.
Unlike the above embodiment 1, the embodiment 2 of the washer with an axial force monitoring function of the present utility model includes, as shown in fig. 3, an annular working module 2 and an annular support plate 1, the annular working module 2 being mounted in a support plate receiving groove 4 of the annular support plate 1 with a receiving groove opening, the annular working module 2 being in an exposed state.
In embodiment 3 of the gasket with an axial force monitoring function of the present utility model, unlike embodiment 1 above, the annular work module is installed in the support plate receiving groove of the annular support plate, and the annular cover plate and the annular support plate are welded and fixed.
In embodiment 4 of the gasket with an axial force monitoring function of the present utility model, unlike embodiment 1 above, the shielding-preventing opening is provided on the annular outer side wall between the groove opening of the accommodating groove and the groove bottom of the accommodating groove of the support plate.
In embodiment 5 of the gasket with the axial force monitoring function of the present utility model, unlike embodiment 1 above, the annular cover plate is not provided with an annular protrusion, the annular cover plate covers the receiving groove opening, and the annular cover plate is stopped against the annular inner side wall and the annular outer side wall.
Unlike embodiment 1 above, embodiment 6 of the washer with axial force monitoring function of the present utility model is a ring-shaped work module having no projecting arm.
In embodiment 7 of the gasket with the axial force monitoring function of the present utility model, unlike embodiment 1 above, the wireless transmitter is a bluetooth module, and the bluetooth module transmits the data measured by the pressure sensor to the receiving device.
In embodiment 8 of the gasket with an axial force monitoring function of the present utility model, unlike embodiment 1 above, an RFID chip is printed in a support plate accommodating groove using a printing process.
Embodiment 9 of the gasket with an axial force monitoring function of the present utility model is different from embodiment 1 above in that the wireless transmitter is provided on the annular ring portion of the annular working module.
Unlike embodiment 1 above, embodiment 10 of the gasket with an axial force monitoring function of the present utility model is that the projecting arm of the annular working module projects from the shielding-preventing opening, and the dimension of the shielding-preventing opening in the circumferential direction of the annular working module is larger than the dimension of the projecting arm in the circumferential direction of the annular working module, so that the projecting arm can rotate a certain angle in the shielding-preventing opening.
The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. A washer with an axial force monitoring function, comprising:
the annular working module (2) is integrated with a pressure sensor and a wireless transmitter for transmitting data measured by the pressure sensor;
an annular supporting plate (1) provided with a supporting plate center hole for a bolt (6) to pass through and a supporting plate accommodating groove (4) for accommodating the annular working module (2), wherein the supporting plate accommodating groove (4) is annular, and the supporting plate accommodating groove (4) is provided with an accommodating groove notch, an annular inner side wall (101) and an annular outer side wall (102); the annular working module (2) is axially installed in the containing groove opening, and the annular inner side wall (101) and the annular outer side wall (102) are radially arranged at intervals inside and outside the annular supporting plate (1);
the annular supporting plate (1) is a metal plate, and an anti-shielding opening (5) is arranged on the annular outer side wall (102); the annular working module (2) is provided with a protruding arm (201), the protruding arm (201) protrudes from the shielding opening (5) and is matched with the shielding opening (5) in a rotation stopping way along the circumferential direction of the annular working module (2), and all or part of the wireless transmitter is arranged on the protruding arm (201).
2. Gasket with axial force monitoring function according to claim 1, characterized in that the gasket (8) further comprises an annular cover plate (3), the annular cover plate (3) being adapted to cover the receiving groove opening.
3. Gasket with axial force monitoring function according to claim 2, characterized in that the annular cover plate (3) is provided with an annular projection (301) extending into the support plate receiving groove (4), the annular projection (301) being intended for an axially press-fit with the annular working module (2).
4. A gasket with axial force monitoring function according to claim 2 or 3, characterized in that the annular cover plate (3), the annular working module (2) and the annular support plate (1) are adhesively secured.
5. The gasket with the axial force monitoring function according to claim 4, wherein the support plate accommodating groove (4) is internally provided with a nonmetallic filling material, and the nonmetallic filling material is used for adhering and fixing the annular cover plate (3), the annular support plate (1) and the annular working module (2).
6. A gasket with an axial force monitoring function according to claim 1 or 2 or 3, characterized in that the shielding opening (5) is through-going with the receiving groove slot.
7. Gasket with axial force monitoring function according to claim 1, characterized in that the receiving groove opening of the gasket (8) is open and the annular working module (2) is in an exposed state.
8. A gasket with axial force monitoring function according to claim 1 or 2 or 3, characterized in that the wireless transmitter is an RFID chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110768123.XA CN113567032B (en) | 2021-07-07 | 2021-07-07 | Gasket with axial force monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110768123.XA CN113567032B (en) | 2021-07-07 | 2021-07-07 | Gasket with axial force monitoring function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113567032A CN113567032A (en) | 2021-10-29 |
| CN113567032B true CN113567032B (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110768123.XA Active CN113567032B (en) | 2021-07-07 | 2021-07-07 | Gasket with axial force monitoring function |
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| CN (1) | CN113567032B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539038A (en) * | 2010-11-16 | 2012-07-04 | 卡特彼勒公司 | Torque coefficient measuring device |
| CN103765177A (en) * | 2011-07-28 | 2014-04-30 | Ntn株式会社 | Magnetic load sensor for direct acting actuator, and direct acting actuator |
| CN109253816A (en) * | 2018-10-17 | 2019-01-22 | 杭州休普电子技术有限公司 | Looped netowrk cabinet electrical contact temperature measurement sensor |
| CN110375900A (en) * | 2019-04-29 | 2019-10-25 | 长江大学 | A kind of method and system using ultrasonic coda wave energy quantitative assessment bolt-connection state |
| WO2020146243A1 (en) * | 2019-01-08 | 2020-07-16 | Applied Bolting Technology | Flange bolting method and apparatus |
| CN212003879U (en) * | 2020-04-24 | 2020-11-24 | 中国气动工业股份有限公司 | Bolt clamping force induction washer |
| CN112763125A (en) * | 2020-12-01 | 2021-05-07 | 雷恩(杭州)液压科技有限公司 | Bolt pretightening force monitoring system |
| CN112823272A (en) * | 2018-09-12 | 2021-05-18 | 新泰福托特股份有限公司 | Assembly and method for measuring strain in a gasket |
| CN112924073A (en) * | 2021-01-29 | 2021-06-08 | 同济大学 | Strain type bolt pretightening force gasket sensor based on cantilever structure increase deformation |
| CN112924074A (en) * | 2021-01-29 | 2021-06-08 | 同济大学 | Fan-shaped differential capacitance type gasket type pressure sensor |
| CN112983967A (en) * | 2021-04-27 | 2021-06-18 | 同济大学 | Intelligent gasket based on wireless transmission and application |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7289033B2 (en) * | 2005-06-30 | 2007-10-30 | General Electric Co. | Wireless sensing washers for imaging device attachment |
| DE202014104451U1 (en) * | 2014-09-18 | 2015-12-21 | Maxion Wheels Germany Holding Gmbh | Nut, in particular wheel or axle nut, washer, control device for wheel or axle nuts on vehicles and vehicle hereby |
-
2021
- 2021-07-07 CN CN202110768123.XA patent/CN113567032B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539038A (en) * | 2010-11-16 | 2012-07-04 | 卡特彼勒公司 | Torque coefficient measuring device |
| CN103765177A (en) * | 2011-07-28 | 2014-04-30 | Ntn株式会社 | Magnetic load sensor for direct acting actuator, and direct acting actuator |
| CN112823272A (en) * | 2018-09-12 | 2021-05-18 | 新泰福托特股份有限公司 | Assembly and method for measuring strain in a gasket |
| CN109253816A (en) * | 2018-10-17 | 2019-01-22 | 杭州休普电子技术有限公司 | Looped netowrk cabinet electrical contact temperature measurement sensor |
| WO2020146243A1 (en) * | 2019-01-08 | 2020-07-16 | Applied Bolting Technology | Flange bolting method and apparatus |
| CN110375900A (en) * | 2019-04-29 | 2019-10-25 | 长江大学 | A kind of method and system using ultrasonic coda wave energy quantitative assessment bolt-connection state |
| CN212003879U (en) * | 2020-04-24 | 2020-11-24 | 中国气动工业股份有限公司 | Bolt clamping force induction washer |
| CN112763125A (en) * | 2020-12-01 | 2021-05-07 | 雷恩(杭州)液压科技有限公司 | Bolt pretightening force monitoring system |
| CN112924073A (en) * | 2021-01-29 | 2021-06-08 | 同济大学 | Strain type bolt pretightening force gasket sensor based on cantilever structure increase deformation |
| CN112924074A (en) * | 2021-01-29 | 2021-06-08 | 同济大学 | Fan-shaped differential capacitance type gasket type pressure sensor |
| CN112983967A (en) * | 2021-04-27 | 2021-06-18 | 同济大学 | Intelligent gasket based on wireless transmission and application |
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| Publication number | Publication date |
|---|---|
| CN113567032A (en) | 2021-10-29 |
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