CN209512823U - A kind of reusable bolt load sensor - Google Patents
A kind of reusable bolt load sensor Download PDFInfo
- Publication number
- CN209512823U CN209512823U CN201822144247.7U CN201822144247U CN209512823U CN 209512823 U CN209512823 U CN 209512823U CN 201822144247 U CN201822144247 U CN 201822144247U CN 209512823 U CN209512823 U CN 209512823U
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- Prior art keywords
- bolt
- load
- sensor
- reusable
- centre bore
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Abstract
The utility model discloses a kind of reusable bolt load sensor, including bolt, the centre bore of perforation is offered at the center of the bolt, runs through in the centre bore and is connected with load transducer.The reusable bolt load sensor, it is simple and reasonable, it is easy for installation, and repeatable disassembly uses, and has the characteristics that at low cost, scalability is strong, versatility is good, in addition to the fields such as installation detection, the experimental test that can be used for plain bolt, it is also particularly well suited for the load detection of hollow bolt, solve the problems, such as that existing ultrasonic technology can not detect hollow bolt load, in addition to this, additionally it is possible to be obviously improved the application range and using effect of existing strain-type bolt load measuring technique.
Description
Technical field
The utility model relates to field of mechanical technique, specially a kind of reusable bolt load sensor.
Background technique
In engineering structure, the installation pretightening force of bolt is quite important, and due to the particularity of bolt arrangement, pretightning force is difficult
Directly measure.Traditionally, usually measured indirectly with torque spanner, but the precision of this method is poor, be difficult to meet aircraft, automobile,
The technical need of the high-end equipment such as high-speed rail.
Utility model content
The purpose of this utility model is to provide a kind of reusable bolt load sensors, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of reusable bolt load biography
Sensor, including bolt, offer the centre bore of perforation at the center of the bolt, through being connected with load biography in the centre bore
Sensor.
Preferably, the load transducer includes a sensor, is socketed with protection pipe, the guarantor on the outside of the sensor
One end of pillar is connected with fixing head.
Preferably, the end of the protection pipe is connect with bolt thread, and one end of the bolt is equipped with mutually fits with fixing head
The deep gouge matched.
Preferably, the both ends of the centre bore are threaded with spacing head and fastener head, one end of the load transducer
It is screwed with spacing head and/or fastener head.
Preferably, the sensor can be fiber grating strain meter, metallic resistance strain gauge or semiconductor strain gauge.
Compared with prior art, the utility model has the beneficial effects that the reusable bolt load sensor, knot
Structure advantages of simple, it is easy for installation, and repeatable disassembly uses, and has the characteristics that at low cost, scalability is strong, versatility is good, removing can
Outside for fields such as the installation detection of plain bolt, experimental tests, it is also particularly well suited for the load detection of hollow bolt, is solved
Existing ultrasonic technology can not detect the problem of hollow bolt load, in addition to this, additionally it is possible to be obviously improved existing strain-type spiral shell
The application range and using effect of bolt load measurement technology.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the deep gouge structural schematic diagram of the utility model；
Fig. 3 is the spacing head and fastener head and bolt fastening structure schematic diagram of the utility model；
Fig. 4 is the load transducer structural schematic diagram of the utility model.
In figure: 1, bolt, 2, centre bore, 3, load transducer, 301, fixing head, 302, sensor, 303, protection pipe, 4,
Deep gouge, 5, spacing head, 6, fastener head.
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 making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1: please referring to Fig. 1,4, a kind of reusable bolt load sensor, including bolt 1, bolt 1
The centre bore 2 of perforation is offered at center, runs through in centre bore 2 and is connected with load transducer 3, and load transducer 3 includes a biography
Sensor 302, sensor 302 are fiber grating strain meter, and the outside of sensor 302 is socketed with protection pipe 303, protection pipe 303
One end is connected with fixing head 301；
Load transducer 3 is mounted in the centre bore 2 in bolt 1, is made after sensor 302 is placed in protection pipe 303
It is perfused and is fixed with glue, protection pipe 303 is socketed in after 302 outer fix of sensor for protecting sensor 302, by protection pipe
303 are fixed in fixing head 301, for perceiving bolt deformation after installed load sensor 3；
Embodiment 2: Fig. 1,2 and 4, a kind of reusable bolt load sensor, including bolt 1, bolt 1 are please referred to
Center at offer the centre bore 2 of perforation, through load transducer 3 is connected in centre bore 2, load transducer 3 includes one
Sensor 302, sensor 302 are metallic resistance strain gauge, and the outside of sensor 302 is socketed with protection pipe 303, protection pipe 303
One end be connected with fixing head 301, the end of protection pipe 303 is threadedly coupled with bolt 1, and one end of bolt 1 is equipped with and fixing head
301 compatible deep gouges 4；
Load transducer 3 is mounted in the centre bore 2 in bolt 1, and load transducer 3 is put into centre bore 2 by when installation
The end of protection pipe 303 screws on bolt 1 afterwards, and fixing head 301 is set in deep gouge 4, makes load sensing in this way
It is more adapted to after in the centre bore 2 that device 3 is mounted in bolt 1, fixed effect is more stable.
Embodiment 3: Fig. 1,3 and 4, a kind of reusable bolt load sensor, including bolt 1, bolt 1 are please referred to
Center at offer the centre bore 2 of perforation, through load transducer 3 is connected in centre bore 2, load transducer 3 includes one
Sensor 302, sensor 302 are semiconductor strain gauge, and the outside of sensor 302 is socketed with protection pipe 303, protection pipe 303
One end is connected with fixing head 301, and the both ends of centre bore 2 are threaded with spacing head 5 and fastener head 6, one end of load transducer 3
It is screwed with spacing head 5 or fastener head 6；
After spacing head 5 is fixed on load transducer 3 first when installation, after load transducer 3 is plugged into centre bore 2
It is fixed on bolt 1 by spacing head 5, while the other end of load transducer 3 being screwed on fastener head 6, using spacing head 5
Design with fastener head 6 carries out Bidirectional clamping to load transducer 3 and fixes, and greatly enhances the fixation after load transducer 3 is installed
Effect.
In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in
The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is construed as a limitation of the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu
Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of reusable bolt load sensor, including bolt (1), it is characterised in that: the center of the bolt (1)
Place offers the centre bore (2) of perforation, runs through in the centre bore (2) and is connected with load transducer (3).
2. a kind of reusable bolt load sensor according to claim 1, it is characterised in that: the load passes
Sensor (3) includes a sensor (302), is socketed with protection pipe (303), the protection pipe on the outside of the sensor (302)
(303) one end is connected with fixing head (301).
3. a kind of reusable bolt load sensor according to claim 2, it is characterised in that: the protection pipe
(303) end is threadedly coupled with bolt (1), and one end of the bolt (1) is equipped with fixing head (301) compatible deep gouge
(4)。
4. a kind of reusable bolt load sensor according to claim 1, it is characterised in that: the centre bore
(2) both ends are threaded with spacing head (5) and fastener head (6), one end and spacing head (5) of the load transducer (3) and/
Or fastener head (6) screws.
5. a kind of reusable bolt load sensor according to claim 1, it is characterised in that: the sensor
(302) fiber grating strain meter, metallic resistance strain gauge or semiconductor strain gauge be can be.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822144247.7U CN209512823U (en) | 2018-12-21 | 2018-12-21 | A kind of reusable bolt load sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822144247.7U CN209512823U (en) | 2018-12-21 | 2018-12-21 | A kind of reusable bolt load sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209512823U true CN209512823U (en) | 2019-10-18 |
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ID=68195917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822144247.7U Active CN209512823U (en) | 2018-12-21 | 2018-12-21 | A kind of reusable bolt load sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209512823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556562A (en) * | 2018-12-21 | 2019-04-02 | 沈阳智航智能系统有限公司 | A kind of reusable bolt load sensor |
-
2018
- 2018-12-21 CN CN201822144247.7U patent/CN209512823U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556562A (en) * | 2018-12-21 | 2019-04-02 | 沈阳智航智能系统有限公司 | A kind of reusable bolt load sensor |
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| GR01 | Patent grant |