CN208872452U - A kind of Portable wind power unit bolt pretightening detection device - Google Patents
A kind of Portable wind power unit bolt pretightening detection device Download PDFInfo
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- CN208872452U CN208872452U CN201920027912.6U CN201920027912U CN208872452U CN 208872452 U CN208872452 U CN 208872452U CN 201920027912 U CN201920027912 U CN 201920027912U CN 208872452 U CN208872452 U CN 208872452U
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- fastening
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Abstract
The utility model discloses a kind of Portable wind power unit bolt pretightening detection devices, including mounting cylinder, fastening assembly and ultrasonic probe, mounting cylinder inner wall is equipped with mounting groove, connection bearing is installed in mounting groove, fastening assembly includes fastening cylinder, and fasten cylinder lateral wall and the sliding contact of mounting cylinder inner wall, drive rod is fixedly installed at the top of fastening cylinder, and mounting cylinder upper side is passed through at the top of drive rod and is fixedly installed with driving tube, six pieces of detent fastening blocks are connected with by fastening spring on fastening cylinder inner wall, limited support pipe is equipped with inside fastening spring, and limited support pipe both ends are connected on fastening cylinder inner wall and detent fastening block lateral surface, limited support pipe includes inner connection tube and outer support pipe, the structure design of the utility model is reasonable, the utility model can not only carry out the bolt of different sizes pre- Clamp force detection, while the result accuracy detected is high, has the characteristics that structure is simple, measurement is accurate, easy to carry.
Description
Technical field
The utility model relates to technical field of wind power generation more particularly to a kind of Portable wind power unit bolt pretightenings
Detection device.
Background technique
Pretightning force is a very common term of the profession such as mechanical building.More common generality description are as follows: connecting
In (mode and purposes of connection are various), before by service load, in order to enhance the reliability and compactness of connection,
To prevent by the power for occurring gap or Relative sliding between load rear connectors and adding in advance.
It being fastened when threaded connection in order to achieve the purpose that reliable, it is necessary to assure screw thread pair has certain moment of friction,
After applying screw-down torque when this moment of friction is by connecting, screw thread pair produces pretightning force and obtains.The size of pretightning force with
Part material and the diameter of thread etc. are related.To the device for having preload force request after connection, pretightning force (or screw-down torque) data
It can be found from assembly technique file.The method of control threaded pre-tightening power can utilize dedicated assembly tool: such as torque-indicating wrencg, turn round
Square wrench, electronic, pneumatic wrench etc..
In bolt pretightening measurement, bolt is measured after bolt elongate method is exactly in rundown process or tightens
Extended length controls a kind of method of bolt pretightening using the relationship of pretightning force and bolt length variable quantity.Bolt elongate method
The advantages of be due to bolt elongation only it is related with the stress of bolt, do not have to consider friction factor, juxtaposition metamorphose, connected compcnent become
The influence of the variable factors such as shape；The disadvantage is that the elongation for measuring bolt is very inconvenient due in Practical Project problem, this side
Method is commonly used in the occasion for needing strict control precision.So very high control precision can be obtained by the method.
But existing bolt pretightening detection device, when carrying out bolt pretightening measurement, the Bolt sizes of detection are solid
It is fixed, need different matching detection equipment to measure on the bolt of different sizes, the scope of application is small, and in addition detection is set
Standby volume is larger, not readily portable, haves the defects that certain.
For this purpose, we have proposed a kind of Portable wind power unit bolt pretightening detection devices.
Utility model content
The utility model provides a kind of Portable wind power unit bolt pretightening detection device, it is therefore intended that can be right
The bolt of different sizes carries out pretightning force measurement, while also having the characteristics that measurement accuracy is high, easy to carry.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions:
A kind of Portable wind power unit bolt pretightening detection device, including mounting cylinder, it is movably arranged on the installation
Fastening assembly on cylinder and the ultrasonic probe being resiliently arranged on the mounting cylinder, the mounting cylinder inner wall are equipped with installation
Slot, connection bearing is fixedly installed in the mounting groove, and the fastening assembly includes being fixedly mounted on the connection bearing inner race
On fastening cylinder, and the fastening cylinder lateral wall and the mounting cylinder inner wall sliding contact, fixed installation at the top of the fastening cylinder
There is drive rod, and passes through the mounting cylinder upper side at the top of the drive rod and be fixedly installed with driving tube, the fastening cylinder
Six pieces of detent fastening blocks being circumferentially distributed are connected with by fastening spring on inner wall, limit branch is equipped with inside the fastening spring
Stay tube, and limited support pipe both ends are respectively fixedly connected in the fastening cylinder inner wall and the detent fastening block lateral surface
On, the limited support pipe includes inner connection tube and the outer support pipe being socketed on the inner connection tube.
Preferably, above-mentioned Portable wind power unit is in bolt pretightening detection device, and wherein one end is living for the driving tube
It is dynamic to be equipped with sealing cover, and the center of the sealing cover medial surface is equipped with detent slot, passes through storage spring in the driving tube
It is connected with torque tube, and the torque tube outer end and the detent slot inner wall sliding contact.
It can will be located at the torque tube in driving tube by rotary seal lid based on above-mentioned technical characteristic and take out, increase
The driving torque of cylinder is fastened, convenient for fastening to the bolt on Wind turbines, while torque tube is hidden and is arranged in driving tube,
Storage space is reduced, it is easy to carry.
Preferably, in bolt pretightening detection device, six pieces of detent fastening blocks close above-mentioned Portable wind power unit
The detent chamber of regular hexagonal prism shape is formed after holding together, detent fastening block section is in the shape of a right-angled ladder.
Based on above-mentioned technical characteristic, by the cooperation of six pieces of detent fastening blocks, the fixation to bolt is realized, passes through rotation
The fastening that can carry out bolt, measures convenient for the pretightning force to bolt.
Preferably, in bolt pretightening detection device, the ultrasonic probe passes through slow above-mentioned Portable wind power unit
It rushes spring to be connected on the fastening cylinder inner top surface, and to be located at the detent intracavitary for the ultrasonic probe.
Based on above-mentioned technical characteristic, realized by the elastic force of buffer spring between ultrasonic probe and bolt to be detected
Compactness, while ultrasonic wave-coupled agent is added, ultrasound examination waveform can be clearly obtained, the inspection of bolt pretightening is improved
Survey precision.
Preferably, above-mentioned Portable wind power unit is fixed on the mounting cylinder bottom surface in bolt pretightening detection device
Absorption magnet ring is installed.
Based on above-mentioned technical characteristic, mounting cylinder can be fixed on device to be installed, be convenient for by adsorbing magnet ring
The fastening of bolt, and then facilitate the measurement of bolt pretightening.
Preferably, above-mentioned Portable wind power unit is in bolt pretightening detection device, the ultrasonic probe output end
It is electrically connected with digital signal processor by analog-digital converter, the digital signal processor output end is electrically connected by decoder
There is display charactron.
Based on above-mentioned technical characteristic, bolt to be detected is carried out by ultrasonic probe and does not apply external force and application external force item
Measurement of length under part, ultrasonic probe acquisition length electric signal are transmitted to number after analog-digital converter is converted into digital signal
Word signal processor, digital signal processor carry out the meter of bolt elongate amount to be measured according to the time difference of ultrasonic reflections twice
Calculate, calculate the pretightning force of bolt at this time according to the linear relationship between elongation and pretightning force, and by display charactron into
Row display.
The beneficial effects of the utility model are:
The structure design of the utility model is reasonable, and the utility model is realized pair by the expansion fit between detent fastening block
The bolt of different sizes carries out pretightning force detection, and the accuracy of result is substantially increased by ultrasonic detecting technology, is had
The feature that structure is simple, measurement is accurate, easy to carry.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is present invention looks up structural representation inside the fastening cylinder of the utility model；
Fig. 3 is the operating circuit structural schematic diagram of the utility model.
In attached drawing, parts list represented by the reference numerals are as follows:
1- mounting cylinder；2- fastening assembly；3- ultrasonic probe；4- mounting groove；5- connection bearing；6- fastens cylinder；7- transmission
Bar；8- driving tube；9- fastening spring；10- detent fastening block；11- limited support pipe；12- inner connection tube；13- outer support pipe；
14- sealing cover；15- detent slot；16- stores spring；17- torque tube；18- detent chamber；19- buffer spring；20- analog-to-digital conversion
Device；21- digital signal processor；22- decoder；23- shows charactron；24- adsorbs magnet ring.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
It please referring to shown in Fig. 1-3, the present embodiment is a kind of Portable wind power unit bolt pretightening detection device, including
Mounting cylinder 1, the fastening assembly 2 being movably arranged on mounting cylinder 1 and the ultrasonic probe 3 being resiliently arranged on mounting cylinder 1, peace
It is fixedly installed with absorption magnet ring 24 on 1 bottom surface of fitted tube, mounting cylinder 1 can be fixed on device to be installed by adsorbing magnet ring 24
On, it is convenient for the fastening of bolt, and then facilitate the measurement of bolt pretightening, 1 inner wall of mounting cylinder is equipped with mounting groove 4, peace
Connection bearing 5 is fixedly installed in tankage 4, fastening assembly 2 includes the fastening cylinder 6 being fixedly mounted on connection 5 inner ring of bearing, and
6 lateral wall of cylinder and 1 inner wall sliding contact of mounting cylinder are fastened, fastens and is fixedly installed with drive rod 7 at the top of cylinder 6, and 7 top of drive rod
Across 1 upper side of mounting cylinder and it is fixedly installed with driving tube 8, wherein one end is movably equipped with sealing cover 14 to driving tube 8, and seals
The center of 14 medial surface of lid is equipped with detent slot 15, passes through storage spring 16 in driving tube 8 and is connected with torque tube 17, and torque
17 outer end of bar and the 15 inner wall sliding contact of detent slot can will be located at the torque tube in driving tube 8 by rotary seal lid 14
17 take out, and increase the driving torque of fastening cylinder 6, convenient for fastening to the bolt on Wind turbines, while torque tube 17 is hidden
Hiding is arranged in driving tube 8, reduces storage space, easy to carry, fastens and is connected with six by fastening spring 9 on 6 inner wall of cylinder
The detent fastening block 10 that block is circumferentially distributed, six pieces of detent fastening blocks 10 form the detent chamber 18 of regular hexagonal prism shape, card after closing up
Position 10 section of fastening block is in the shape of a right-angled ladder, by the cooperation of six pieces of detent fastening blocks 10, realizes the fixation to bolt, passes through
Rotation can carry out the fastening of bolt, measure convenient for the pretightning force to bolt, and limited support pipe is equipped with inside fastening spring 9
11, and 11 both ends of limited support pipe are respectively fixedly connected on fastening 6 inner wall of cylinder and 10 lateral surface of detent fastening block, limit branch
Stay tube 11 passes through buffering elastic including inner connection tube 12 and the outer support pipe 13 being socketed on inner connection tube 12, ultrasonic probe 3
Spring 19 is connected on fastening 6 inner top surface of cylinder, and ultrasonic probe 3 is located in detent chamber 18, by the elastic force of buffer spring 19 come
It realizes the compactness between ultrasonic probe 3 and bolt to be detected, while adding ultrasonic wave-coupled agent, can clearly obtain super
Sonic detection waveform, improves the detection accuracy of bolt pretightening, and 3 output end of ultrasonic probe is electrically connected by analog-digital converter 20
It is connected to digital signal processor 21,21 output end of digital signal processor is electrically connected with display charactron 23 by decoder 22,
The measurement of length under the conditions of bolt to be detected does not apply external force and application external force, ultrasonic wave are carried out by ultrasonic probe 3
3 acquisition length electric signals of popping one's head in are transmitted to digital signal processor 21 after analog-digital converter 20 is converted into digital signal, number
Signal processor 21 carries out the calculating of bolt elongate amount to be measured according to the time difference of ultrasonic reflections twice, according to elongation with
Linear relationship between pretightning force calculates the pretightning force of bolt at this time, and by showing that charactron 23 is shown, in order to just
In using outdoors, lithium battery can be used and be powered.
Detent fastening block 10 is directed at bolt to be measured simultaneously first when in use by a kind of specific implementation of the utility model
It gently presses down, so that bolt to be detected snaps onto six pieces of detent fastening blocks 10, adsorbs magnet ring 24 at this time and be adsorbed on device to be detected
The fixation of detection device is completed on part surface, and at the same time, ultrasonic probe 3 is contacted with bolt upper surface to be detected fitting, then
Ultrasonic probe 3 carries out linear measure longimetry to the bolt to be detected for not applying external force, obtains the initial length of bolt to be detected, then
Rotate driving pipe 8, to bolt to be detected apply external force fastened, after the completion of fastening, ultrasonic probe 3 to bolt to be detected into
The secondary linear measure longimetry of row, and detected according to the pretightning force that the elongation of bolt to be detected carries out bolt, final pretightning force numerical value exists
It is shown on digital display tube 23.The structure design of the utility model is reasonable, and the utility model passes through between detent fastening block
Expansion fit, which is realized, carries out pretightning force detection to the bolt of different sizes, greatly improves and finishes by ultrasonic detecting technology
The accuracy of fruit has the characteristics that structure is simple, measurement is accurate, easy to carry.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, does not limit the specific embodiment that the utility model is only yet.Obviously, according to this specification
Content, can make many modifications and variations.These embodiments are chosen and specifically described to this specification, be in order to preferably explain
The principles of the present invention and practical application, so that skilled artisan be enable to better understand and utilize this practical
It is novel.The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. a kind of Portable wind power unit bolt pretightening detection device, it is characterised in that: including mounting cylinder (1), activity peace
Fastening assembly (2) on the mounting cylinder (1) and the ultrasonic probe (3) being resiliently arranged on the mounting cylinder (1),
Mounting cylinder (1) inner wall is equipped with mounting groove (4), and connection bearing (5) is fixedly installed in the mounting groove (4), described tight
Gu component (2) is including being fixedly mounted on the fastening cylinder (6) connected on bearing (5) inner ring, and fastening cylinder (6) lateral wall
With the mounting cylinder (1) inner wall sliding contact, fastening cylinder (6) top is fixedly installed with drive rod (7), and the drive rod
(7) top passes through the mounting cylinder (1) upper side and is fixedly installed with driving tube (8), passes through on fastening cylinder (6) inner wall
Fastening spring (9) is connected with six pieces of detent fastening blocks (10) being circumferentially distributed, and limit branch is equipped with inside the fastening spring (9)
Stay tube (11), and the limited support pipe (11) both ends are respectively fixedly connected in fastening cylinder (6) inner wall and the detent
On fastening block (10) lateral surface, the limited support pipe (11) includes inner connection tube (12) and is socketed in the inner connection tube
(12) the outer support pipe (13) on.
2. a kind of Portable wind power unit bolt pretightening detection device according to claim 1, it is characterised in that: institute
Stating driving tube (8), wherein one end is movably equipped with sealing cover (14), and the center of the sealing cover (14) medial surface is equipped with card
Position slot (15), the driving tube (8) is interior to be connected with torque tube (17) by storing spring (16), and the torque tube (17) outer end
Portion and detent slot (15) the inner wall sliding contact.
3. a kind of Portable wind power unit bolt pretightening detection device according to claim 1, it is characterised in that: six
Detent fastening block (10) described in block forms the detent chamber (18) of regular hexagonal prism shape after closing up, detent fastening block (10) section is in
Right-angled trapezium shape.
4. a kind of Portable wind power unit bolt pretightening detection device according to claim 3, it is characterised in that: institute
It states ultrasonic probe (3) to be connected on fastening cylinder (6) inner top surface by buffer spring (19), and the ultrasonic probe
(3) it is located in the detent chamber (18).
5. a kind of Portable wind power unit bolt pretightening detection device according to claim 1, it is characterised in that: institute
It states and is fixedly installed with absorption magnet ring (24) on mounting cylinder (1) bottom surface.
6. a kind of Portable wind power unit bolt pretightening detection device according to claim 1, it is characterised in that: institute
It states ultrasonic probe (3) output end to be electrically connected with digital signal processor (21) by analog-digital converter (20), the number letter
Number processor (21) output end is electrically connected with display charactron (23) by decoder (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920027912.6U CN208872452U (en) | 2019-01-08 | 2019-01-08 | A kind of Portable wind power unit bolt pretightening detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920027912.6U CN208872452U (en) | 2019-01-08 | 2019-01-08 | A kind of Portable wind power unit bolt pretightening detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208872452U true CN208872452U (en) | 2019-05-17 |
Family
ID=66471810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920027912.6U Expired - Fee Related CN208872452U (en) | 2019-01-08 | 2019-01-08 | A kind of Portable wind power unit bolt pretightening detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208872452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179020A (en) * | 2021-12-10 | 2022-03-15 | 航天精工股份有限公司 | Automatic installation tool capable of measuring pre-tightening force of intelligent fastener |
| JP7444257B2 (en) | 2020-07-02 | 2024-03-06 | 株式会社島津製作所 | Defect inspection equipment |
-
2019
- 2019-01-08 CN CN201920027912.6U patent/CN208872452U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7444257B2 (en) | 2020-07-02 | 2024-03-06 | 株式会社島津製作所 | Defect inspection equipment |
| CN114179020A (en) * | 2021-12-10 | 2022-03-15 | 航天精工股份有限公司 | Automatic installation tool capable of measuring pre-tightening force of intelligent fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20200108 |