CN110487472A - A kind of bolt loaded state test device - Google Patents
A kind of bolt loaded state test device Download PDFInfo
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- CN110487472A CN110487472A CN201910866361.7A CN201910866361A CN110487472A CN 110487472 A CN110487472 A CN 110487472A CN 201910866361 A CN201910866361 A CN 201910866361A CN 110487472 A CN110487472 A CN 110487472A
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
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- 238000005452 bending Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 229910002056 binary alloy Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
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Classifications
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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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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
This application discloses a kind of bolt loaded state test devices, it include: apparatus main body, load transmission device, stress section and main controller, load transmission device is installed on apparatus main body, and it is equipped with the adjustable cavity passed through for bolt activity, apparatus main body is equipped with the escape port for avoiding cavity, stress section is installed on apparatus main body, and it is connect with load transmission device, main controller is installed on stress section, and the data loaded for obtaining bolt by stress section, it can be by load transmission device that bolt activity passes through by being arranged in apparatus main body, recycle load transmission device by the stress section loaded that passes to of bolt, main controller is further according to the information calculating ratio loaded obtained from stress section to obtaining the data loaded of bolt, the cavity that wherein load transmission device is equipped with is adjustable, it can adapt to plurality of specifications ruler Very little bolt test, is improved to a variety of close but different specification size bolt testing efficiency.
Description
Technical field
This application involves bolt the field of test technology more particularly to a kind of bolt loaded state test devices.
Background technique
Bolt, by head and screw rod (having externally threaded cylindrical body) a kind of fastener dimerous, need and nut
Cooperation, for being fastenedly connected two parts for having through-hole, bolt occupies very important status in mechanical part connection, because
This knows that the loading conditions of bolt during the work time are extremely important for designing and analyzing work system, existing bolt test
In, when test be a variety of close but different specification size bolt when, need to frequently replace tooling and debugging tool, efficiency compared with
It is low.
Summary of the invention
In view of this, the purpose of the application is to provide a kind of bolt loaded state test device, can be improved to a variety of phases
Close but different specification size bolt testing efficiency.
To reach above-mentioned technical purpose, this application provides a kind of bolt loaded state test devices, comprising: device master
Body, load transmission device, stress section and main controller；
The load transmission device is installed in described device main body, and adjustable logical equipped with passing through for bolt activity
Chamber；
Described device main body is equipped with the escape port for avoiding the cavity；
The stress section is installed in described device main body, and is connect with the load transmission device；
The main controller is installed on the stress section, and the number loaded for obtaining bolt by the stress section
According to.
Further, described device main body includes retainer plate, upper end cover and lower cover；
The open end of the retainer plate is separately installed with the upper end cover and the lower cover, and the retainer plate and institute
It states and forms accommodating cavity between upper end cover and the lower cover；
The escape port is opened in respectively on the upper end cover and the lower cover, and is connected to the accommodating cavity.
Further, the load transmission device, the stress section and the main controller are mounted in the accommodating cavity.
Further, the stress section is multiple；
Multiple stress sections are around the load transmission device circle distribution, and the stress section is installed on the retainer plate
On inner sidewall.
Further, the load transmission device include adjustable retaining ring and with the one-to-one connector of the stress section；
The middle part of the adjustable retaining ring is equipped with the cavity；
Multiple connector circle distributions are on the retaining ring lateral wall, and one end and the adjustable retaining ring lateral wall connect
It connects, the other end is connect with the stress section.
Further, the connector is specially the elastic component for being equipped with preset decrement.
It further, further include in soft limit stop ring, the adjustable retaining ring is by one-to-one with the stress section
Multiple arcs block composition；
Multiple connectors are installed in the limit stop ring, and one end is connect with the inner sidewall of the limit stop ring,
The other end is connect with the lateral wall of the arc block；
The cavity is surrounded between the inner sidewall of multiple arc blocks.
Further, the connector is specially electric pushrod；
The main controller is also used to, and is controlled the arc block edge by the connector and is moved towards bolt direction.
It further, further include the communication module being electrically connected with the main controller；
The communication module is installed on the retainer plate.
It further, further include the multiple alarm moulds for corresponding with the stress section and being electrically connected with the main controller
Block；
The alarm modules are respectively arranged on the stress section.
As can be seen from the above technical solutions, the application can be passed through by being arranged in apparatus main body by bolt activity
Load transmission device recycles load transmission device that the loaded of bolt is passed to stress section, and main controller is further according to from stress section
For the information calculating ratio loaded of upper acquisition to the data loaded of bolt are obtained, the cavity that wherein load transmission device is equipped with is can
With adjusting, it can adapt to the bolt test of plurality of specifications size, improve and a variety of close but different specification size bolt is surveyed
Try efficiency.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of whole perspective view of the explosion of bolt loaded state test device provided herein；
Fig. 2 is a kind of a kind of structural representation of the load transmission device of bolt loaded state test device provided herein
Figure；
Fig. 3 is that a kind of another structure of the load transmission device of bolt loaded state test device provided herein is shown
It is intended to；
Fig. 4 is a kind of protective cover structural schematic diagram of bolt loaded state test device provided herein；
In figure: 1, upper end cover；11, escape port；2, adjustable retaining ring；3, stress section；4, retainer plate；5, lower cover；6, buzzing
Device；7, light emitting diode；8, communication module；201, elastic component；202, arc block；203, limit stop ring；204, shield.
Specific embodiment
It is clearly and completely described below in conjunction with technical solution of the attached drawing to the embodiment of the present application, it is clear that described
Embodiment be the embodiment of the present application a part of the embodiment, instead of all the embodiments.Based on the reality in the embodiment of the present application
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the range of the embodiment of the present application protection.
In the description of the embodiment of the present application, it should be noted that term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description the embodiment of the present application and simplifies description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the embodiment of the present application.In addition,
Term " first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the embodiment of the present application, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to replaceable connection, or integrally
Connection, can be mechanical connection, be also possible to be electrically connected, can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the embodiment of the present application.
The embodiment of the present application discloses a kind of bolt loaded state test device.
Referring to Fig. 1, a kind of one embodiment packet of the bolt loaded state test device provided in the embodiment of the present application
It includes:
Apparatus main body, load transmission device, stress section 3 and main controller (not shown), load transmission device are installed on device
In main body, and it is equipped with the adjustable cavity passed through for bolt activity, apparatus main body is equipped with the escape port for avoiding cavity
11, stress section 3 is installed on apparatus main body, and is connect with load transmission device, and main controller is installed on stress section 3, and for leading to
The data loaded of the acquisition bolt of overstress piece 3.
Specifically, main controller can be the conventional micro process with flash memory, load transmission device for transmit bolt by
Carry test when load, and by bolt in the load transmission of load transmission device contact position to stress section 3, test loaded
When, device can be integrally set in the rod segment of bolt to be measured, and by device be arranged in bolt to be measured cooperation nut with
Between fastener (not shown), the load suffered by load transmission device position is passed through load in the rod segment of screw rod in test process
It passs device and passes to stress section 3, stress section 3 generates piezoelectric signal according to the load received and is sent to main controller, and main controller connects
It receives the piezoelectric signal and is converted to voltage signal, and reverse integral is carried out to the voltage signal after conversion, obtain digital signal, then
It carries out that data loaded are calculated, the data loaded of acquisition is stored, make convenient for subsequent analysis bolt loading conditions
With.
As can be seen from the above technical solutions, the application can be passed through by being arranged in apparatus main body by bolt activity
Load transmission device recycles load transmission device that the loaded of bolt is passed to stress section 3, and main controller is further according to from stress section
To obtaining the data loaded of bolt, the cavity that wherein load transmission device is equipped with is the information calculating ratio loaded obtained on 3
Adjustable, it can adapt to the bolt test of plurality of specifications size, improve to a variety of close but different specification size bolt
Testing efficiency effectively shortens test period when batch testing similar sizes bolt, improves and survey compared with traditional test device
Efficiency is tried, the quantity of test device needed for reducing, when reducing needed for the test of batch bolt required tooling and debugging tool
Between, and simplify debugging process.
The above are a kind of embodiments one of bolt loaded state test device provided by the embodiments of the present application, and the following are this Shens
Please embodiment provide a kind of bolt loaded state test device embodiment two, referring specifically to Fig. 1 to Fig. 4.
A kind of bolt loaded state test device, apparatus main body, load transmission device, stress section 3 and main controller, load pass
It passs device to be installed on apparatus main body, and is equipped with the adjustable cavity passed through for bolt activity, apparatus main body is equipped with for keeping away
Allow the escape port 11 of cavity, stress section 3 is installed on apparatus main body, and is connect with load transmission device, and main controller is installed on stress
On piece 3, and the data loaded for obtaining bolt by stress section 3.
It further, refering to fig. 1, may include such as retainer plate 4, upper end cover 1 and lower end for apparatus main body
Lid 5, the open end of retainer plate 4 are separately installed with upper end cover 1 and lower cover 5, and retainer plate 4 and upper end cover 1 and lower cover 5
Between form accommodating cavity, escape port 11 is opened in respectively on upper end cover 1 and lower cover 5, and be connected to accommodating cavity, upper end cover 1 with
And lower cover 5 can by welding, the modes such as viscous glutinous be fixedly connected with retainer plate 4, shim-like is integrally formed, it is compact-sized small
Ingeniously, convenient for being set on bolt to be measured, naturally it is also possible to which, using other structures designs, those skilled in the art are as base
Plinth can make transformation appropriate, specifically with no restrictions.
Further, load transmission device, stress section 3 and main controller are mounted in accommodating cavity, are enabled to so whole
Body structure is more compact, and in test, main controller, load transmission device and stress section 3 can be also protected using apparatus main body
Damage will not be extruded.
Further, refering to fig. 1, stress section 3 can be multiple, multiple stress sections 3 around load transmission device circle distribution, and
Stress section 3 is installed on the inner sidewall of retainer plate 4, and multiple stress sections 3 can realize the test of multiple directions to bolt, is improved and is surveyed
The accuracy of examination, but excessive stress section 3 also results in installation maintenance inconvenience, certain stress section 3 is also possible to individually, specifically
With no restrictions, corresponding, a master can be set in main controller as 3 quantity of stress section, that is, on each stress section 3
Device is controlled, main controller is desirably integrated on stress section 3, naturally it is also possible to be only one main controller, which is integrated into it
In a stress section 3 on, then be electrically connected with other stress sections 3.
Further, for stress section more than 3, load transmission device may include for example adjustable retaining ring 2 and and stress
The middle part of the one-to-one connector 201 of piece 3, adjustable retaining ring 2 is equipped with cavity, and multiple 201 circle distributions of connector are in outside retaining ring
On side wall, and one end is connect with adjustable 2 lateral wall of retaining ring, and the other end is connect with stress section 3.
Specifically, referring to Fig.2, adjustable retaining ring 2 can be soft rubber circle, the cavity that its middle part is formed in this way can be fitted
The bolt of a variety of similar sizes specifications is answered, wherein connector 201 can be the elastic component equipped with preset decrement, and elastic component can be with
It is elastic piece, compressed spring etc., is capable of providing power of the adjustable retaining ring 2 one towards bolt direction, so that adjustable retaining ring 2 is close to spiral shell
Bolt, such bolt it is loaded also can preferably tight adjustable individual pen and elastic component pass to stress section 3.
It further, further include in soft limit stop ring 203, wherein adjustable retaining ring 2 can be by a pair of with stress section 3 one
The multiple arcs block 202 answered forms, and multiple connectors 201 are installed in limit stop ring 203, and one end and limit stop ring 203
Inner sidewall connection, the other end are connect with the lateral wall of arc block 202, surround cavity between the inner sidewall of multiple arcs block 202.
Specifically, refering to Fig. 3, adjustable retaining ring 2 is split into multiple arcs block 202, accordingly even when arc block 202 is hard
Property, the adjustable cavity being also capable of forming wherein also increases a soft limit stop ring 203 in the present embodiment, this
The connection of sample more convenient connector 201 and stress section 3, while flexible structure will not influence bolt transmitting loaded.
In addition, limit stop ring 203 can not also be increased in the present embodiment, directly adopt elastic component by arc block 202 with answer
Power piece 3 connects, and those skilled in the art can do transformation appropriate based on this, specifically with no restrictions.
Further, connector 201 is specially electric pushrod, and main controller is also used to, and controls arc block by connector 201
202 towards bolt direction along moving, and the small-sized electric push rod that wherein electric pushrod can be conventional is also possible in existing for hand
Machine go up and down camera lifting drive mould group, just install for, the fixing end of electric pushrod can be in limit stop ring 203
Side wall is fixedly connected, and the flexible rod end of electric pushrod can be fixedly connected with arc block 202, to drive arc block 202 past
The movement of bolt direction guarantees that arc block 202 can be close to bolt, to realize stable delivery loaded.
It is sheathed on connector 201, uses in addition, telescopic shield 204 can also be increased refering to Fig. 4, in the present embodiment
In protecting connector 201, shield 204 can be successively to be successively decreased and the hollow wedge being successively nested is formed by multiple sizes, certainly
It is also possible to conventional telescopic folding pipe, specifically with no restrictions, when installation, one end of shield 204 can be with the outside of arc block 202
Wall connection, the other end are connect with the inner sidewall of limit stop ring 203.
It further, further include the communication module 8 being electrically connected with main controller, communication module 8 is installed on retainer plate 4,
Middle communication module 8 can be wired communication interface module and/or wireless communication transceiver module, can both realize that wired data were read
It takes, wireless reading data also may be implemented, or be provided simultaneously with wired and wireless communication function, it in this way can be to wired reading
The data taken are compared with the data wirelessly read, preferable to improve data acquisition accuracy, it is corresponding can be in retainer plate 4
On open up the first installing port for installing communication module 8, in addition, being provided simultaneously with wired and wireless communication function can also be
It is switched under different environmental conditions, guarantees the stability and integrality of data transmission, default data can be set in when setting
Be transmitted as being wirelessly transferred, while main controller detection data transmission speed, specifically used process can for example under, interference signal compared with
By force, by environmental restrictions signal receiving end can only locating distance transmitting terminal remotely etc. under test conditions, test device can be switched to
Line transmission mode guarantees the stability and integrality of transmission data；Under normal test conditions, test device can pass through default
Wireless transmission method is sent to terminal, and data transmission bauds is very fast, and reduces the process that tester reads data manually, shortens and surveys
Try the period；Test for more important bolt, after test device is sent to terminal by way of default wireless transmission, tester
Also still test data of the backup in test device can be sent to terminal by way of wire transmission, by two parts of data comparisons
And supplement, guarantee the integrality and reliability of transmission data.
It further, further include the multiple alarm modules for corresponding with stress section 3 and being electrically connected with main controller, alarm mould
Block is respectively arranged on stress section 3, by setting alarm modules, can carry out alarm feedback to the data cases of test in time,
Convenient for prompt tester, wherein alarm modules can be buzzer 6 and/or light emitting diode 7, if alarm modules be with
If light emitting diode 7, corresponding retainer plate 4 can be set to the transparent retainer plate 4 of acrylic material preparation, in this way will not
The optical signal transmitting of light emitting diode 7 is influenced, light emitting diode 7 and buzzer 6 are all that correspondence is installed on stress section 3, because
Corresponding escape groove can be opened up on this retainer plate 4, convenient for the installation of buzzer 6 and light emitting diode 7.
By taking four stress sections 3 in the present embodiment as an example, the use process of light emitting diode 7 for example under, pressed on stress section 3
For electric signal after main controller calculates and obtains data loaded, master control work device can show each stress by light emitting diode 7
Which maximum loaded of piece 3, corresponding four stress sections 3 of four Light-Emitting Diodes 7, has at the Light-Emitting Diode 7 on a stress section 3
In flashing state, it can be said that the bright maximum loaded of stress section 3, in addition light emitting diode 7 can also be shown by binary system
The maximum difference of each stress section 3 out, that is to say, that the maximum difference loaded with minimum loaded in each stress section 3, tool
Body application can be with for example, with bright 1 be denoted as in binary value of light emitting diode 7, light emitting diode 7, which goes out, to be denoted as in diameter value
0, such as maximum difference of most a certain stress section 3 is 10N, then 10 to be converted to binary value be 1010, then the corresponding hair
Optical diode 7 should be just bright-- bright-such sequence of light of going out of going out, if maximum difference is 14N, then 14 are converted to binary system
Value can 1110, therefore the light emitting diode 7 should be just bright-bright-bright-such sequence of light of going out, and prompt is surveyed for convenience
Examination personnel, it is therein it is bright can by flashing be indicated, in this regard, those skilled in the art can do based on this it is appropriate
Transformation, specifically with no restrictions.
The use process of buzzer 6 can for example under, buzzer 6 on different stress sections 3 receives the telecommunications of different frequency
Number different buzzer is issued, display loaded maximum on stress section 3 at this is corresponded to by buzzer, and utilize time of buzzer
Number indicates the maximum difference of each stress section 3, such as the buzzer 6 on a certain stress section 3 yowls, then can be determined that as the stress section
3 maximum loaded, in addition the maximum difference of for example a certain stress section 3 is 10N, then the corresponding buzzer 6 can be with ring 10
Secondary, if the maximum difference of corresponding a certain stress section 3 is 14N, the corresponding buzzer 6 can be 14 times with ring, similarly, this
Field technical staff can do transformation appropriate based on this, specifically with no restrictions.
In addition, issuing interrupt signal, master control when the loaded data of the bolt that main controller receives are greater than preset normal value
The logical test loaded stopped to bolt of device, avoids damaging test device, then trigger alarm modules signal an alert,
Such as light emitting diode 7 continuously flashes, 6 interval ring of buzzer reminds tester to carry out interruption source investigation in time, guarantees
Test process is normally carried out.
In the application the specific test process of test device can for example under:
1, test device internal data is reset, and be arranged suffered by 3 bending moment limiting value a of stress section and stress section 3
The permission threshold value b of moment of flexure maximum difference；
2, test device is set on bolt, is placed between nut and fastener, tightening nut；
3, bolt is loaded and passes to stress section 3 by load transducer, and stress section acquisition piezoelectric signal is simultaneously sent to master
Control device；
4, piezoelectric signal is converted to digital signal by main controller, then the size of 3 bending moments of stress section is obtained by calculation
With direction；
5, judge whether 3 bending moments of stress section are less than set limiting value a, if it is not, then main controller generates interruption
Signal, so that stress section pause test, and pass through alarm modules signal an alert；
If 6, bolt institute bending moment is less than limiting value for operation a in test process, test device judges stress section moment of flexure
Whether maximum difference, which is less than, allows threshold value b；
If 7,3 moment of flexure maximum difference of stress section, which is greater than, allows threshold value b, alarm modules are fed back, for example, by shining
The light on and off situation of diode 7 and the ring number of buzzer 6, learn actual maximum difference be it is how many, it is anti-further according to this
The loaded state of data appropriate adjustment bolt is presented, above-mentioned 2-5 step is repeated, so that the stress section maximum difference energy of actual test
It is enough to allow in threshold value b；
If 8, each 3 moment of flexure maximum difference of stress section, which is less than, allows threshold value b, test device default passes through wireless transmission method
It is sent to terminal, while test device detection data transmission speed V, if speed V is less than normal transmission speed 750k/s, to
Tester issues feedback signal, such as by light emitting diode 7 or buzzer 6, while terminating wireless transmission method, and will test
Data are saved to the flash memory of main controller, and tester can send data to end by wire transmission mode after the test is finished
End, in addition, the test for more important bolt, after test device is sent to terminal by way of default wireless transmission, test
Test data of the backup in test device still can be sent to terminal by way of wire transmission by person, then by two parts of data pair
Than and supplement, further increase the precision of test result.
As can be seen from the above technical solutions, the application can be passed through by being arranged in apparatus main body by bolt activity
Load transmission device recycles load transmission device that the loaded of bolt is passed to stress section 3, and main controller is further according to from stress section
To obtaining the data loaded of bolt, the cavity that wherein load transmission device is equipped with is the information calculating ratio loaded obtained on 3
Adjustable, it can adapt to the bolt test of plurality of specifications size, improve to a variety of close but different specification size bolt
Testing efficiency effectively shortens test period when batch testing similar sizes bolt, improves and survey compared with traditional test device
Efficiency is tried, the quantity of test device needed for reducing, when reducing needed for the test of batch bolt required tooling and debugging tool
Between, and simplify debugging process.
A kind of bolt loaded state test device provided herein is described in detail above, for this field
Those skilled in the art, according to the embodiment of the present application thought, have change in specific embodiments and applications
Place, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (10)
1. a kind of bolt loaded state test device characterized by comprising apparatus main body, load transmission device, stress section and
Main controller；
The load transmission device is installed in described device main body, and is equipped with the adjustable cavity passed through for bolt activity；
Described device main body is equipped with the escape port for avoiding the cavity；
The stress section is installed in described device main body, and is connect with the load transmission device；
The main controller is installed on the stress section, and the data loaded for obtaining bolt by the stress section.
2. bolt loaded state test device according to claim 1, which is characterized in that described device main body includes fixing
Circle, upper end cover and lower cover；
The open end of the retainer plate is separately installed with the upper end cover and the lower cover, and the retainer plate and it is described on
Accommodating cavity is formed between end cap and the lower cover；
The escape port is opened in respectively on the upper end cover and the lower cover, and is connected to the accommodating cavity.
3. bolt loaded state test device according to claim 2, which is characterized in that the load transmission device, described
Stress section and the main controller are mounted in the accommodating cavity.
4. bolt loaded state test device according to claim 2, which is characterized in that the stress section is multiple；
Multiple stress sections are around the load transmission device circle distribution, and the stress section is installed on the inside of the retainer plate
On wall.
5. bolt loaded state test device according to claim 4, which is characterized in that the load transmission device includes can
Gear shift circle and with the one-to-one connector of the stress section；
The middle part of the adjustable retaining ring is equipped with the cavity；
Multiple connector circle distributions are on the retaining ring lateral wall, and one end is connect with the adjustable retaining ring lateral wall,
The other end is connect with the stress section.
6. bolt loaded state test device according to claim 5, which is characterized in that the connector is specially to be equipped with
The elastic component of preset decrement.
7. bolt loaded state test device according to claim 4, which is characterized in that further include in soft limiting block
Circle, the adjustable retaining ring with the one-to-one multiple arcs block of the stress section by forming；
Multiple connectors are installed in the limit stop ring, and one end is connect with the inner sidewall of the limit stop ring, another
End is connect with the lateral wall of the arc block；
The cavity is surrounded between the inner sidewall of multiple arc blocks.
8. bolt loaded state test device according to claim 7, which is characterized in that the connector is specially electronic
Push rod；
The main controller is also used to, and is controlled the arc block edge by the connector and is moved towards bolt direction.
9. bolt loaded state test device according to claim 2, which is characterized in that further include and the main controller electricity
The communication module of connection；
The communication module is installed on the retainer plate.
10. bolt loaded state test device according to claim 2, which is characterized in that further include and the stress section
The multiple alarm modules for corresponding and being electrically connected with the main controller；
The alarm modules are respectively arranged on the stress section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910866361.7A CN110487472B (en) | 2019-09-12 | 2019-09-12 | Bolt loading state testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910866361.7A CN110487472B (en) | 2019-09-12 | 2019-09-12 | Bolt loading state testing device |
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| CN110487472A true CN110487472A (en) | 2019-11-22 |
| CN110487472B CN110487472B (en) | 2024-04-19 |
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| CN201910866361.7A Active CN110487472B (en) | 2019-09-12 | 2019-09-12 | Bolt loading state testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014023A (en) * | 2020-08-31 | 2020-12-01 | 湖北文理学院 | Hub bolt torque detection device |
| CN113380013A (en) * | 2021-06-09 | 2021-09-10 | 重庆大学 | Bolt pre-tightening force alarm ring piece with installation prompting function and installation method thereof |
| CN113380012B (en) * | 2021-06-09 | 2023-11-07 | 重庆大学 | Contact type fixed-load intelligent early warning nut and installation method thereof |
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