CN209495792U - A kind of pressure sensor - Google Patents
A kind of pressure sensor Download PDFInfo
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- CN209495792U CN209495792U CN201822121179.2U CN201822121179U CN209495792U CN 209495792 U CN209495792 U CN 209495792U CN 201822121179 U CN201822121179 U CN 201822121179U CN 209495792 U CN209495792 U CN 209495792U
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Abstract
A kind of pressure sensor, including elastomer, strain gauge, the elastomer is cylinder, the elasticity body side surface is equipped with four groups of stress slots, correspondence is equipped with strain gauge inside stress slot described in every group, strain gauge described in four groups constitutes Wheatstone bridge and external cable is electrically connected, and the Wheatstone bridge that the strain gauge is constituted is fixed on inside corresponding stress slot by protective rubber, and described elastomer one end end point is equipped with two groups of mounting holes.The utility model structure is simple, and sensor bulk is small, including outer diameter is small, height is low, however the range of its test is big；It is easy for installation, it is not shifted after only sensor need to be installed, structure is reliable, the elastomer of de-stress groove outer sensor belongs to solid construction, can detect larger overload-resistant pressure, therefore the sensor is not only hardly damaged, long service life, and anti-side, to, global reliability height strong with offset load resistance, performance is stable.
Description
Technical field
The utility model relates to sensor fields, and in particular to a kind of pressure sensor.
Background technique
During Industry Control Application, some components in equipment are frequently necessary to installation connection, when applying between component
When pressure, this needs a kind of sensor just to detect this size for pressing to force value, so as to reach equipment to the size of power into
Row detection, control.This novel sensor requirement: compact structure, easy for installation, sensors stabilizability, high reliablity
Feature.
The prior art usually passes through face contact transmission force to the connection between the force and stressed member of equipment, to the two it
Between power detection be substantially all and completed using installing force snesor.However, conventional force sensors used at present, structure have column
Formula, spoke type, cartridge type and shear-beam type, although these types of type sensor can be used to detect the size of power, they exist
The problem of be:
1. structure is complicated, volume is larger, and height is higher, and the complexity of its structure is increased after equipment installation；
2. pair installation requirement is stringent, difficulty is big；
3. the status requirement of pair stress point is tighter, therefore stablizes poor, poor reliability.
Utility model content
The above problem present in the utility model prior art of being solved, it is therefore an objective to a kind of pressure sensor is provided,
It can be conveniently mounted between force application part and stressed member, by simple installation or simply be fixedly connected, realization is to pressure
Force value, which is made, accurately to be detected.
A kind of pressure sensor, including elastomer, strain gauge, the elastomer are cylinder, and the elasticity body side surface is set
There are four groups of stress slots, corresponding inside stress slot described in every group to be equipped with strain gauge, strain gauge described in four groups constitutes Wheatstone bridge
It is electrically connected with external cable, the Wheatstone bridge that the strain gauge is constituted is fixed in corresponding stress slot by protective rubber
Portion, described elastomer one end end point are equipped with two groups of mounting holes.
Further, stress slot described in four groups is equiangularly arranged in the middle part of elastic outside.
Further, it is provided with guide groove between the elastic outside connection stress slot, connected between the adjacent strain gauge
The s-shape conductor curve connect is arranged in inside guide groove, and protective rubber is filled with inside the guide groove.
Further, the elastomer is solid cylinder structure.
The beneficial effects of the utility model are:
The utility model structure is simple, and sensor bulk is small, including outer diameter is small, height is low, however the range of its test is big；
It is easy for installation, it is not shifted after only sensor need to be installed, structure is reliable, the elastomer category of de-stress groove outer sensor
In solid construction, larger overload-resistant pressure can be detected, therefore the sensor is not only hardly damaged, long service life, and anti-side
To, global reliability height strong with offset load resistance, performance is stable.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the top view of the utility model；
Fig. 3 is the cross-sectional view of the utility model；
In figure: 1. elastomers；2. strain gauge；12. stress slot；13. external cable；14. protective rubber；15. mounting hole；21.
Guide groove.
Specific embodiment
It is easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with being specifically illustrating, the utility model is further described.
Embodiment 1
In conjunction with shown in Fig. 1, Fig. 2, Fig. 3；A kind of pressure sensor, including elastomer 1, strain gauge 2, elastomer 1 are cylinder
Shape, 1 side of elastomer are equipped with four groups of stress slots 12, and correspondence is equipped with strain gauge 2, four groups of strain gauges 2 inside every group of stress slot 12
It constitutes Wheatstone bridge and external cable 13 is electrically connected, the Wheatstone bridge that strain gauge 2 is constituted is fixed on by protective rubber 14
Inside corresponding stress slot 12,1 one end end point of elastomer is equipped with two groups of mounting holes 15.
Four groups of stress slots 12 are equiangularly arranged in the middle part of 1 lateral surface of elastomer.
Guide groove 21, the s-shape conductor connected between adjacent strain gauge 2 are provided between 1 lateral surface of elastomer connection stress slot 12
Curve is arranged in inside guide groove 21, and protective rubber 14, the line use of strain gauge 2 and Wheatstone bridge are filled with inside guide groove 21
14 seal protection of protective rubber.
Elastomer 1 is solid cylinder structure.
A kind of pressure sensor, working principle:
In the elastomer 1 of sensor pacify design stress slot 12, one end have installable mounting hole 15, when upper and lower side by
When power, the stress area in stress slot 12 will occur to deform accordingly, the size of overall deformation and the size of exerted forces
Linear proportionate relationship, meanwhile, the resistance value for the strain gauge 2 pasted in the 12 internal strain area of stress slot of sensor changes,
Be made up of strain gauge 2 Wheatstone bridge and cable 13 output electric signal, finally come realize sensor detection power size.
Embodiment 2
In conjunction with shown in Fig. 1, Fig. 2, Fig. 3；A kind of pressure sensor, including elastomer 1, strain gauge 2, elastomer 1 are cylinder
Shape, 1 side of elastomer are equipped with four groups of stress slots 12, and correspondence is equipped with strain gauge 2, four groups of strain gauges 2 inside every group of stress slot 12
It constitutes Wheatstone bridge and external cable 13 is electrically connected, the Wheatstone bridge that strain gauge 2 is constituted is fixed on by protective rubber 14
Inside corresponding stress slot 12,1 one end end point of elastomer is equipped with two groups of mounting holes 15.
Four groups of stress slots 12 are equiangularly arranged in the middle part of 1 lateral surface of elastomer.
Guide groove 21, the s-shape conductor connected between adjacent strain gauge 2 are provided between 1 lateral surface of elastomer connection stress slot 12
Curve is arranged in inside guide groove 21, and protective rubber 14, the line use of strain gauge 2 and Wheatstone bridge are filled with inside guide groove 21
14 seal protection of protective rubber.
Elastomer 1 is solid cylinder structure.
A kind of pressure sensor, working principle:
In the elastomer 1 of sensor pacify design stress slot 12, one end have installable mounting hole 15, when upper and lower side by
When power, the stress area in stress slot 12 will occur to deform accordingly, the size of overall deformation and the size of exerted forces
Linear proportionate relationship, meanwhile, the resistance value for the strain gauge 2 pasted in the 12 internal strain area of stress slot of sensor changes,
Be made up of strain gauge 2 Wheatstone bridge and cable 13 output electric signal, finally come realize sensor detection power size.
The utility model pressure sensor is installed between the force application part and stressed member of its adaptation, sensor installation
Mode includes but is not limited to threaded upper ends connection, is also possible to upper and lower ends and inlays installation, is also possible to upper end or lower end
Any end inlays installation, such as threaded one end is fixed or inlayed, as long as that is, sensor is radial in axially loaded does not generate cunning
Shifting.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (4)
1. a kind of pressure sensor, it is characterised in that: including elastomer (1), strain gauge (2), the elastomer (1) is cylinder
Shape, elastomer (1) side are equipped with four groups of stress slots (12), and correspondence is equipped with strain gauge inside stress slot (12) described in every group
(2), strain gauge described in four groups (2) constitutes Wheatstone bridge and external cable (13) are electrically connected, what the strain gauge (2) was constituted
Wheatstone bridge is fixed on corresponding stress slot (12) inside by protective rubber (14), and elastomer (1) one end end point is set
There are two groups of mounting holes (15).
2. a kind of pressure sensor according to claim 1, it is characterised in that: stress slot (12) described in four groups is angularly set
It sets in the middle part of elastomer (1) lateral surface.
3. a kind of pressure sensor according to claim 1, it is characterised in that: elastomer (1) the lateral surface connection is answered
It is provided between power slot (12) guide groove (21), the s-shape conductor curve connected between the adjacent strain gauge (2) is arranged in guide groove (21)
Inside, the guide groove (21) is internal to be filled with protective rubber (14).
4. a kind of pressure sensor according to claim 1, it is characterised in that: the elastomer (1) is solid cylinder
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822121179.2U CN209495792U (en) | 2018-12-18 | 2018-12-18 | A kind of pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822121179.2U CN209495792U (en) | 2018-12-18 | 2018-12-18 | A kind of pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209495792U true CN209495792U (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822121179.2U Active CN209495792U (en) | 2018-12-18 | 2018-12-18 | A kind of pressure sensor |
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| Country | Link |
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| CN (1) | CN209495792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117629476A (en) * | 2024-01-26 | 2024-03-01 | 中车齐齐哈尔车辆有限公司 | Pressure sensor and method for detecting brake shoe pressure |
-
2018
- 2018-12-18 CN CN201822121179.2U patent/CN209495792U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117629476A (en) * | 2024-01-26 | 2024-03-01 | 中车齐齐哈尔车辆有限公司 | Pressure sensor and method for detecting brake shoe pressure |
| CN117629476B (en) * | 2024-01-26 | 2024-04-16 | 中车齐齐哈尔车辆有限公司 | Pressure sensor and method for detecting brake shoe pressure |
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