CN205373931U - Connecting piece - Google Patents
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- CN205373931U CN205373931U CN201620143780.XU CN201620143780U CN205373931U CN 205373931 U CN205373931 U CN 205373931U CN 201620143780 U CN201620143780 U CN 201620143780U CN 205373931 U CN205373931 U CN 205373931U
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- foil gauge
- studs
- detecting equipment
- strain detecting
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- 239000011888 foil Substances 0.000 claims abstract description 103
- 238000012856 packing Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000000930 thermomechanical effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
Abstract
An embodiment of the utility model provides a connecting piece. This connecting piece has screw thread section and non - screw thread section, has a plurality of foil gages along circumference is attached on the axial surface of non - screw thread section, and a plurality of foil gages are connected with strain detection equipment respectively. Adopt the utility model discloses a connecting piece can effectively detect connecting piece's pretightning force, axial load and moment of flexure, and then effectively improves the reliability of connecting piece's connection effect to whether became invalid to connecting piece's connection effect carries out accurate monitoring, and, advantages such as this connecting piece still has simple structure, is convenient for to operate, the cost is lower.
Description
Technical field
This utility model relates to MACHINERY JOINT field, particularly relates to a kind of connector.
Background technology
Stud connection is one of type of attachment commonly used in the assembling of mechanical part, and its reliability directly affects running status and the quality of integral device.Such as, for the part vitals of such as pitch variable bearings by the wind power generating set of Stud connection, once Stud connection lost efficacy, connected piece in wind power generating set is possibly separated, thus affecting the properly functioning of wind power generating set, the quality accident of wind power generating set even can be caused.Therefore, in the assembling process of stud and use procedure, it is ensured that the bonding strength of stud, the pretightning force etc. of Stud connection is detected and monitors, be effectively improved the reliability of Stud connection, the probability that Stud connection lost efficacy could be reduced.
The failure mode of Stud connection mainly has fatigue fracture, brittle fracture and ductile rupture, and during current Stud connection, stud needs to bear the alternate load from connected piece, irregular load effect, and fatigue fracture becomes the main cause that Stud connection lost efficacy.Therefore, the work process of stud needs monitoring stud axial load, be used for preventing stud excessive and cause inefficacy by load.
Stud connection is primarily used to connect thicker part, and stud is except under tension, it is necessary to bear the Moment from connected piece.When stud is subject to Moment, its stress is concentrated or be there is cracks and fracture will be occurred to cause Stud connection to lose efficacy.Accordingly, it would be desirable to the moment of flexure that stud is subject to detects and monitors, have an accident to prevent stud to lose efficacy.
But, not desirable technological means in prior art, it is possible to effectively detect the moment of flexure that the pretightning force of Stud connection, stud axial load and stud be subject to and effectively detect.
Utility model content
The purpose of this utility model is in that to provide a kind of connector, effectively to monitor the moment of flexure that connector is subject to, improves the reliability of connector.
For reaching above-mentioned purpose, this utility model provides a kind of connector, and described connector has thread segment and non-threaded section, is circumferentially pasted with multiple foil gauge in the axial external surface of described non-threaded section, and the plurality of foil gauge is connected with strain detecting equipment respectively.
Alternatively, the plurality of foil gauge is arranged equably along the circumference of same circumference.
Alternatively, described strain detecting equipment includes the strain gauge with bridge circuit.
Alternatively, described connector is furnished with packing ring, and described packing ring offers the groove passing to outside inside it, and the connecting line of the plurality of foil gauge passes from described groove respectively and electrically connects with described strain detecting equipment.
Alternatively, through hole is axially offered from one end of described connector, the axial external surface of described non-threaded section is additionally provided with perforate corresponding with the plurality of foil gauge respectively, the plurality of perforate communicates with described through hole respectively, the connecting line of the plurality of foil gauge penetrates described through hole from described perforate respectively and passes from described through hole, is connected to described strain detecting equipment.
Alternatively, offering, at described connector, the plug that described through hole is further fixed on being connected with described strain detecting equipment, the connecting line of the plurality of foil gauge is connected with described plug.
Alternatively, described plug is aviation plug.
Alternatively, described connector is also equipped with the nut that matches with described thread segment.
Alternatively, described foil gauge is wire form resistance strain gage or foil resistance foil gauge, and described connector is studs or hex bolts.
Alternatively, described strain detecting equipment is connected with at least one communication in the middle of universal PC, data acquisition server, built-in industrial control machine and PLC respectively by Ethernet or bus.
The connector that this utility model embodiment provides, multiple foil gauges are attached by the axial external surface at non-threaded section, utilize foil gauge principle to detect the moment of flexure that the pretightning force of connector, axial load and connector are subject to, and then be effectively improved the reliability of the interconnection function of connector, and whether the interconnection function of connector was lost efficacy accurately monitored.
Accompanying drawing explanation
Fig. 1 is the structural representation of the connector of embodiment one of the present utility model；
Fig. 2 is that the A-A of the connector shown in Fig. 1 is to sectional view；
Fig. 3 is the position schematic diagram of the connector of embodiment one of the present utility model；
Fig. 4 is the first force analysis schematic diagram of the connector of embodiment one of the present utility model；
Fig. 5 is the working state schematic representation of the strain detecting equipment of the connector of embodiment one of the present utility model；
Fig. 6 is the second force analysis schematic diagram of the connector of embodiment one of the present utility model；
Fig. 7 is the structural representation of the connector of embodiment two of the present utility model；
Fig. 8 is that the B-B of the connector shown in Fig. 7 is to sectional view；
Fig. 9 is the structural representation of the head of the connector of embodiment two of the present utility model.
Drawing reference numeral explanation
1: studs；2: nut；3: packing ring；4: groove；5: connecting line；6: strain detecting equipment；7,7-1,7-2,7-3,7-4: foil gauge；8: protection set；9,10: connected piece；11: foil gauge bearing mark line；12: through hole；13: perforate；14: plug；15: bonding agent；16: universal PC；17: data acquisition server；18: built-in industrial control machine；19:PLC；F: power；The component of Fx, Fy: power F；F ' x, F ' y: stress；M: moment；M1: moment of flexure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the connector of embodiment of the present utility model is described in detail.
Embodiment one
Fig. 1 is the structural representation of the connector of the embodiment of this utility model one, this connector can be used for connecting the construction package of wind power generating set, detect by the moment of flexure that the pretightning force of connector, axial load and connector are subject to and monitor, improve the reliability of connector the and whether interconnection function of connector was lost efficacy and effectively monitor.Certainly, this connector can be additionally used in the construction package connected in the steel construction such as steel tower, bridge.
As depicted in figs. 1 and 2, this connector has thread segment and non-threaded section, is circumferentially pasted with multiple foil gauge 7 in the axial external surface of non-threaded section, and the plurality of foil gauge 7 is connected with strain detecting equipment 6 respectively.In the present embodiment, this connector is the studs 1 with thread segment and non-threaded section, and connected piece 9 and connected piece 10 are fastenedly connected.In other embodiments, this connector can also be the other kinds of connector with thread segment and non-threaded section, for instance hexagon-headed bolt.Additionally, foil gauge 7 can be such as, but not limited to, wire form resistance strain gage or foil resistance foil gauge etc..
Here, strain detecting equipment 6 detects the pretightning force of connector, axial load and the moment of flexure being subject to according to the thermomechanical processing (the resistance change value of such as foil gauge 7) detected from multiple foil gauges 7.Specifically, strain detecting equipment 6 can include the strain gauge with bridge circuit.According to actual needs, bridge circuit can adopt single armed loop, half-bridge loop or full-bridge loop.Additionally, according to design of the present utility model, foil gauge 7 can be electrically connect with the connection of strain detecting equipment 6, it is also possible to be that radio communication connects.
Connect in the assembling process of connected piece 9 and connected piece 10 at studs 1, it is attached to multiple foil gauges 7 of non-threaded section of studs 1 and can detect the deformation of studs 1, foil gauge 7 is detected that thermomechanical processing is converted into the pretightning force of studs 1 by the strain detecting equipment 6 being connected with multiple foil gauges 7, the pretightning force of studs 1 can be efficiently controlled according to the pretightning force detected, make studs 1 that connected piece 9 and connected piece 10 to be reliably fastenedly connected.In addition, after studs 1 has assembled and when being operated, the thermomechanical processing of the studs 1 that strain detecting equipment 6 detects according to multiple foil gauges 7 determines the moment of flexure that the axial load of studs 1 and studs 1 are subject to, axial load and moment of flexure to studs 1 are accurately monitored, and then judge whether being fastenedly connected of studs 1 lost efficacy.
Foil gauge is attached to the axial external surface of non-threaded section of studs 1, the damage of studs 1 is less, hardly its bonding strength is impacted.Foil gauge cheap, strain measurement technology maturation, measure cost low, it is possible to when using lower cost, whether pretightning force and being fastenedly connected of connector of monitoring of detecting this connector lost efficacy, and improved the reliability of this connector.
In practical application scene, multiple foil gauges 7 by the glue identical with the elastic modelling quantity of studs 1, and can utilize rational bonding method to be attached to the operating mode sensitizing range of studs 1, for accurately detecting the deformation of studs 1.Multiple foil gauges 7 are positioned at the inside of connected piece 9, it is possible to be connected with strain detecting equipment 6 respectively through connecting line 5, and the deformation signal that foil gauge 7 detects is transferred to strain detecting equipment 6.In order to protect foil gauge 7 and constraint connecting line 5, it is possible to arrange protection set 8 (such as plastic protective sleeve, the rubber protecting jackets etc.) being close to studs 1 axial external surface, make protection the set 8 multiple foil gauges 7 of covering and part connecting line 5.
Preferably, this connector is furnished with packing ring 3, packing ring 3 offers the groove 4 passing to outside inside it, the connecting line 5 of multiple foil gauges 7 passes from groove 4 respectively and electrically connects with strain detecting equipment 6, so that strain detecting equipment 6 gathers thermomechanical processing (such as resistance change value) from multiple foil gauges 7.
Packing ring 3 is arranged on the outside of connected piece 9, and the fluting face of packing ring 3 should hacking, it is prevented that packing ring 3 rotates and affects connecting line 5 integral layout.Groove 4 is for holding from connected piece internal derivation connecting line 5, the slotting position of groove 4, groove depth, groove width and quantity can be determined according to practical application, such as, groove 4 in Fig. 1 is one, its groove depth may range from 2mm～3mm, its groove width may range from 2mm～3mm.Connecting line 5 is drawn from connected piece and is connected with strain detecting equipment, it is possible to be convenient for measuring operation.
Preferably, this connector is also equipped with the nut 2 that matches with its thread segment.
In order to ensure the reliability being fastenedly connected of studs 1, it is necessary to the screw thread pair between nut 2 with the thread segment of studs 1 matches to merge and has certain moment of friction, when this moment of friction is by fastening nut 2, screw thread pair produces pretightning force and obtains.Therefore, the suitable key being fastenedly connected quality controlling to be to ensure that studs 1 of pretightning force, the pretightning force of studs 1 can be accurately acquired by foil gauge 7 and strain detecting equipment 6, fastening nut 2 and studs 1 is come according to this pretightning force, to realize the accurate control of the pretightning force to studs 1, prevent pretightning force too small cause studs 1 be fastenedly connected loosen and lost efficacy, and prevent that pretightning force is excessive causes that studs 1 deforms, the efficiency of assembling of studs 1 can also be accelerated simultaneously.
In wind power generating set, the arrangement of studs 1 is generally even circumferential and arranges, as shown in Figure 3 and Figure 4, studs 1 load subjected to points to the center of circle of connected piece, and when studs 1 works, its power being subject to generally goes through the axle center of studs 1.When studs 1 is subject to the power F effect of any direction, according to force resolution, it is possible to power F to be decomposed in the horizontal direction the power Fx of (radial direction of studs 1) and the power Fy of vertically (studs 1 axial).
When studs 1 shaftless to external load function time, power Fx in the horizontal direction is equal to zero, power Fy vertically is the pretightning force produced when nut 2 is tightened, stress F ' the y vertically that its size produces equal to studs 1, the size of this power can be passed through foil gauge 7 and measure, and the power that now strain detecting equipment 6 detects is the pretightning force of studs 1.In the assembling process of studs 1, it is possible to according to this pretightning force, the pretension process of studs 1 is accurately controlled, studs 1 is made reliably connected piece 9 and connected piece 10 to be fastenedly connected.
When studs 1 is additionally subjected to the load effect from connected piece, power Fy changes, the pretightning force that power is studs 1 that now strain detecting equipment 6 detects and axial load sum, then the size of axial load deducts the pretightning force of studs 1 equal to the power that strain detecting equipment 6 detects, this pretightning force is the pretightning force of the studs 1 being previously detected of strain detecting equipment 6 storage.
When studs 1 is additionally subjected to the Moment from connected piece, power Fx in the horizontal direction is not equal to zero, then Fx produces moment M in the horizontal direction, the moment M1 that the stress F ' x that the size of M produces equal to studs 1 bending produces, the size of M1 is multiplied by h (foil gauge 7 is from the distance bottom studs 1) equal to power F ' x, power F ' x can be carried out multiple spot detection by strain detecting equipment 6 by multiple foil gauges 7 and obtain, and utilizes the structured data h of known studs 1 to calculate and obtains moment M 1.
Thus, strain detecting equipment 6 utilizes multiple foil gauge 7 to achieve the detection to the pretightning force of studs 1, axial load and moment of flexure, and then achieve the accurate control to studs 1 pretension, and to the axial load of studs 1 and the monitoring of moment of flexure and judge whether being fastenedly connected of studs 1 lost efficacy, improve the reliability being fastenedly connected of studs 1.
Preferably, multiple foil gauges 7 are arranged equably along the circumference of same circumference.Multiple foil gauges 7 are arranged on the circumference of same circumference, the deformation to studs 1 that matches of multiple foil gauge 7 can be made accurately to detect, and then accurately detect out the pretightning force of studs 1, axial load and moment of flexure, improve the degree of accuracy that the pretightning force to studs 1 controls, and improve the accuracy whether monitoring studs 1 lost efficacy.
In the present embodiment, the quantity of foil gauge 7 is four, and four foil gauges (foil gauge 7-1, foil gauge 7-2, foil gauge 7-3, foil gauge 7-4) are evenly distributed on the same circumference of studs 1.When pasting four foil gauges, can by being set to point to the foil gauge bearing mark line 11 in the direction, the center of circle of connected piece at the top of studs 1, and the direction with reference to foil gauge bearing mark line 11 is correspondingly arranged foil gauge 7-1 and foil gauge 7-3, for detecting the moment M 1 of studs 1；Vertical direction with reference to foil gauge bearing mark line 11 is correspondingly arranged foil gauge 7-2 and foil gauge 7-4, for detecting pretightning force and the axial load of studs 1.After strain gauge adhesion completes, carry out studs 1 when assembling, it is possible to by rotating studs 1, make the direction of foil gauge bearing mark line 11 point to the center of circle of connected piece, at this point it is possible to the pretightning force of studs 1 is detected by strain detecting equipment 6.
The aforesaid strain gauge with bridge circuit can be set in strain detecting equipment 6.When the deformation utilizing foil gauge 7 to detect studs 1, this strain gauge can be passed through, the related datas such as the input voltage of this bridge circuit, output voltage are utilized to change to the Minitype resistance detecting foil gauge 7, and then directly measure the size of 1 stress of studs and change, directly calculated the moment of flexure that studs 1 is subject to by multiple foil gauges 7 simultaneously.Due to the device that the strain gauge with bridge circuit is conventional in prior art, do not repeat herein.
The strain gauge being arranged in strain detecting equipment 6 receives, from foil gauge 7, the strain signal that foil gauge 7 detects, the recycling elastic modelling quantity of studs 1, cross-sectional area, foil gauge 7 are from known parameters such as the distances bottom studs 1, can directly calculate the pretightning force of studs 1, axial load and moment of flexure, thus, in Practical Project, it is possible to use strain detecting equipment 6 directly detects the pretightning force of studs 1, axial load and moment of flexure.
In addition, as shown in Figure 5, strain detecting equipment 6 can be connected (such as being connected) by Ethernet, CAN-BUS bus or RS-485 bus etc. with one or more communications in universal PC 16, data acquisition server 17, built-in industrial control machine 18, PLC19, for intuitively showing the pretightning force of studs 1, axial load and the moment of flexure detected, and then realize the detection to the pretightning force of studs 1, axial load and moment of flexure and monitoring；And the data of the pretightning force of studs 1, axial load and moment of flexure that storage detects, provide data support for the optimization of studs 1 is designed.Certainly, strain detecting equipment 6 can also be integrated into the one strain detecting equipment with functions such as detection, display, storages with one or more in universal PC 16, data acquisition server 17, built-in industrial control machine 18, PLC19.
Such as, four above-mentioned foil gauges are accessed strain detecting equipment 6 with bridge circuit respectively, the each passage accessing strain detecting equipment 6 is independent of one another, complementary interference, then strain detecting equipment 6 can measure the tensile force f 1 suffered by foil gauge 7-1, foil gauge 7-2, foil gauge 7-3 and foil gauge 7-4, F2, F3 and F4 respectively.
As shown in Figure 6, when studs 1 is subject to power F effect and bends, foil gauge 7-1, foil gauge 7-2 and foil gauge 7-4 are stretched, and foil gauge 7-3 is compressed, and the pulling force that each foil gauge measured by strain detecting equipment 6 is corresponding meets F1 > F2=F4 > F3.According to force analysis and deformation, can extrapolating the pretightning force size of studs 1 equal to F2, F4, the stress F ' x that its moment of flexure produces is equal to 1/2 (F1-F3), and its moment of flexure is sized to 1/2 (F1-F3) h.
When studs 1 is subject to other power (such as alternate tension, irregular pulling force etc.) effect, can realize the axial load of studs 1 is monitored by monitoring force F2 or F4.
The power F horizontal direction component Fx being subject to when studs 1 is not along the direction of foil gauge bearing mark line 11, can pass through to rotate studs 1, make the power F2=F4 that strain detecting equipment 6 measures, now, the horizontal direction component Fx of power F is along foil gauge bearing mark line 11 direction, and its moment of flexure size is also 1/2 (F1-F3) h.
Here illustrate, the multiple foil gauges 7 being pasted onto the axial external surface of non-threaded section of connector of the present utility model can adopt the foil gauge of wire form resistance strain gage, foil resistance foil gauge or other forms, its quantity is not limited to above-mentioned four, other quantity can also be adopted, for instance three or five.And, the layout of multiple foil gauges 7 is also not necessarily limited to the above-mentioned axially outwards face being evenly distributed on connector, it would however also be possible to employ strain rosette or other layouts.
Embodiment two
Fig. 7 is the structural representation of the connector of embodiment two of the present utility model, this connector is essentially identical with the 26S Proteasome Structure and Function of the connector of above-described embodiment one, the difference is that on the basis of the connector of embodiment one, the leading-out form of multiple foil gauges 7 with the connecting line 5 of strain detecting equipment 6 is modified.
As shown in Figure 7 and Figure 8, through hole 12 is axially offered from one end (such as head) of this connector.Here, the one end offering through hole 12 should be one end that connector is in use exposed at outside connected piece.Being additionally provided with perforate 13 corresponding with multiple foil gauges 7 respectively the axial external surface of non-threaded section, multiple perforates communicate with through hole 12 respectively, and the connecting line 5 of multiple foil gauges 7 penetrates through hole 12 from perforate 13 respectively and passes from through hole 12, is connected to strain detecting equipment 6.
Specifically, through hole 12 extends axially downward from the head of connector, communicates with multiple perforates 13 at non-threaded section, to avoid affecting the structural strength of connector.Multiple perforates 13 tilt open-minded with the communicating passage of through hole 12, for instance along and axial angle be 45 ° slope downwardly in the direction.The size of through hole 12 should more than the size of perforate 13, for instance through hole 12 is of a size of Φ 5, and perforate 13 is of a size of Φ 2.5.The size of through hole 12, the size of perforate 13, direction, quantity can be determined according to the concrete structure (including the size of the size of connector) of connector, this is not limited by this utility model, and the connecting line 5 of multiple foil gauge 7 can be facilitated to draw inside connected piece.
Preferably, offering, at connector, the plug 14 that through hole 12 place is further fixed on being connected with strain detecting equipment 6, the connecting line 5 of multiple foil gauges 7 is connected with plug 14.Such as, through hole 12 is enlarged by the head at connector, for arranging and plug 14, makes plug 14 be connected with the connecting line 5 of multiple foil gauges 7, and then facilitates strain detecting equipment 6 to be realized by plug 14 and being stably connected with of multiple foil gauge 7.As it is shown in figure 9, plug 14 can pass through bonding agent 15 (such as glue) be connected to extended after through hole 12 in.
More preferably, plug 14 is aviation plug.Aviation plug can realize being stably connected with between strain detecting equipment 6 and multiple foil gauge 7, makes strain detecting equipment 6 stably receive, from multiple foil gauges 7, the deformation signal that its connector detected produces.
The connector of embodiment of the present utility model has the following technical effect that
Utilize multiple foil gauge to detect the moment of flexure that the pretightning force of connector, axial load and connector are subject to, it is possible to be effectively improved the reliability of the interconnection function of connector, and whether the interconnection function of connector was lost efficacy accurately monitor；
This connector has simple in construction, is easily achieved, is easy to advantages such as operating, less costly, and when affecting bonding strength bad student is less, can accurately measure out the pretightning force of connector, axial load and moment of flexure.
It may be noted that according to the needs implemented, all parts described in this application can be split as more multi-part, it is possible to the part operation of two or more parts or parts is combined into new parts, to realize the purpose of this utility model.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; change can be readily occurred in or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with described scope of the claims.
Claims (10)
1. a connector, described connector has thread segment and non-threaded section, it is characterized in that, being circumferentially pasted with multiple foil gauge (7) in the axial external surface of described non-threaded section, the plurality of foil gauge (7) is connected with strain detecting equipment (6) respectively.
2. connector according to claim 1, it is characterised in that the plurality of foil gauge (7) is arranged equably along the circumference of same circumference.
3. connector according to claim 1, it is characterised in that described strain detecting equipment (6) includes the strain gauge with bridge circuit.
4. the connector according to any one of claims 1 to 3, it is characterized in that, described connector is furnished with packing ring (3), described packing ring (3) offers the groove (4) passing to outside inside it, and the connecting line of the plurality of foil gauge (7) passes from described groove (4) respectively and electrically connects with described strain detecting equipment (6).
5. the connector according to any one of claims 1 to 3, it is characterized in that, through hole (12) is axially offered from one end of described connector, the axial external surface of described non-threaded section is additionally provided with perforate (13) corresponding with the plurality of foil gauge (7) respectively, the plurality of perforate (13) communicates with described through hole (12) respectively, the connecting line (5) of the plurality of foil gauge (7) penetrates described through hole (12) from described perforate (13) respectively and passes from described through hole (12), it is connected to described strain detecting equipment (6).
6. connector according to claim 5, it is characterized in that, offering, at described connector, the plug (14) that described through hole (12) place is further fixed on being connected with described strain detecting equipment (6), the connecting line (5) of the plurality of foil gauge (7) is connected with described plug (14).
7. connector according to claim 6, it is characterised in that described plug (14) is aviation plug.
8. the connector according to any one of claims 1 to 3, it is characterised in that described connector is also equipped with the nut (2) matched with described thread segment.
9. the connector according to any one of claims 1 to 3, it is characterised in that described foil gauge (7) is wire form resistance strain gage or foil resistance foil gauge, and described connector is studs or hex bolts.
10. the connector according to any one of claims 1 to 3, it is characterized in that, described strain detecting equipment (6) is connected with at least one communication in the middle of universal PC (16), data acquisition server (17), built-in industrial control machine (18) and PLC (19) respectively by Ethernet or bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620143780.XU CN205373931U (en) | 2016-02-25 | 2016-02-25 | Connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620143780.XU CN205373931U (en) | 2016-02-25 | 2016-02-25 | Connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205373931U true CN205373931U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620143780.XU Active CN205373931U (en) | 2016-02-25 | 2016-02-25 | Connecting piece |
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| Country | Link |
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| CN (1) | CN205373931U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014527A (en) * | 2017-04-06 | 2017-08-04 | 武汉凡谷电子技术股份有限公司 | Microwave communication filter package tightening state monitoring method |
| CN108533591A (en) * | 2018-06-21 | 2018-09-14 | 电子科技大学 | A kind of intelligent bolt that can monitor connection strain |
| CN109268375A (en) * | 2018-10-19 | 2019-01-25 | 上海大学 | A kind of dynamometry bolt |
| CN110617911A (en) * | 2019-09-19 | 2019-12-27 | 深圳臻宇新能源动力科技有限公司 | Bolt axial force measuring device and bolt axial force measuring method |
| CN112945435A (en) * | 2021-02-04 | 2021-06-11 | 包头盛泰汽车零部件制造有限公司 | Method for testing axial force of bolt for wheel |
| CN114061819A (en) * | 2021-10-20 | 2022-02-18 | 广州建筑股份有限公司 | Scaffold fastener tightening torque monitoring device |
-
2016
- 2016-02-25 CN CN201620143780.XU patent/CN205373931U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014527A (en) * | 2017-04-06 | 2017-08-04 | 武汉凡谷电子技术股份有限公司 | Microwave communication filter package tightening state monitoring method |
| CN108533591A (en) * | 2018-06-21 | 2018-09-14 | 电子科技大学 | A kind of intelligent bolt that can monitor connection strain |
| CN109268375A (en) * | 2018-10-19 | 2019-01-25 | 上海大学 | A kind of dynamometry bolt |
| CN110617911A (en) * | 2019-09-19 | 2019-12-27 | 深圳臻宇新能源动力科技有限公司 | Bolt axial force measuring device and bolt axial force measuring method |
| CN112945435A (en) * | 2021-02-04 | 2021-06-11 | 包头盛泰汽车零部件制造有限公司 | Method for testing axial force of bolt for wheel |
| CN114061819A (en) * | 2021-10-20 | 2022-02-18 | 广州建筑股份有限公司 | Scaffold fastener tightening torque monitoring device |
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