CN215338660U - Shaft pin type pressure sensor structure - Google Patents
Shaft pin type pressure sensor structure Download PDFInfo
- Publication number
- CN215338660U CN215338660U CN202121610764.4U CN202121610764U CN215338660U CN 215338660 U CN215338660 U CN 215338660U CN 202121610764 U CN202121610764 U CN 202121610764U CN 215338660 U CN215338660 U CN 215338660U
- Authority
- CN
- China
- Prior art keywords
- elastic body
- annular groove
- pressure sensor
- shaft pin
- sensor structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Measurement Of Force In General (AREA)
Abstract
The utility model belongs to the field of sensor structures, and discloses a shaft pin type pressure sensor structure which comprises a cylindrical elastic body, wherein a joint is arranged on one side of the elastic body, and the elastic body consists of a stress section in the middle and support sections at two ends; an annular groove is formed between the stress section and the support section, and the elastic body is provided with a strain gauge at the annular groove; the radial cross-sectional area of the annular groove is 0.4-0.6 times of the radial cross-sectional area of the elastic body; the utility model can ensure the measuring precision of the sensor on the premise of meeting a large measuring range, has simple structure and convenient installation, leads the strain to be close to a stress point, leads the pressure to be better transmitted to the strain gauge, simultaneously improves the deformation capability of the shaft pin and further improves the detection precision.
Description
Technical Field
The utility model belongs to the field of sensor structures, and particularly relates to a shaft pin type pressure sensor structure.
Background
The shaft pin type sensor reflects the development direction of miniaturization, modularization, integration and intellectualization of the electronic weighing apparatus, is an integrated structure which combines a loader and a weighing sensor into a whole, is a special sensor for measuring the radial load of components such as bearing shearing force, bearings, pulleys and the like or the tension of a steel wire rope, and mainly replaces a bearing shaft, a balance pulley, a shaft of a fixed pulley or other pin shafts to be arranged in the structure for measuring the radial force.
However, in the existing pin-type sensor, under the condition of meeting the specification of larger stress, the precision of the sensor cannot be synchronously improved; therefore, in the process of carrying out large-range weighing pressure sensing, a radial over-thick shaft pin type sensor is required, and the production processing or test environment with increasingly strict precision requirements in the field of weighing sensors cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems, and provides a shaft pin type pressure sensor structure which can simultaneously ensure the measurement accuracy of the sensor on the premise of meeting a large range, has a simple structure and convenient installation, enables the strain to be close to a stress point, enables the pressure to be better transmitted to a strain gauge, simultaneously improves the deformation capacity of a shaft pin, and further ensures the detection accuracy on the premise of improving the range.
In order to realize the purpose, the utility model adopts the technical scheme that: a shaft pin type pressure sensor structure comprises a cylindrical elastic body, wherein a joint is arranged on one side of the elastic body, and the elastic body consists of a stress section in the middle and support sections at two ends; an annular groove is formed between the stress section and the support section, and a strain gauge is arranged on the elastic body at the annular groove; the radial cross-sectional area of the annular groove is 0.4-0.6 times of the radial cross-sectional area of the elastic body.
As a further improvement of the technical scheme, the elastic body is a cylinder or a prism
As a further improvement of the above technical solution, one side of the elastic body is provided with a fixing hole.
As a further improvement of the technical scheme, the end face of the elastic body is provided with a jack which is matched with the joint and is used for plugging.
Has the advantages that: the utility model discloses a device is become by atress section, support section and the annular groove after the improvement design, and the radial range and the precision of having decided whole sensor of atress axle in the annular groove, and this sensor simple structure, simple to operate, it is close to the stress point to meet an emergency, makes the better transmission of pressure give the foil gage, has also improved the deformability of pivot simultaneously, and then has guaranteed the detection precision under the prerequisite that improves the range.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a left side view structural diagram of the present invention.
In the figure: 1. an elastomer; 2. a stress section; 3. a support section; 4. a strain gauge; 5. an annular groove; 6. a fixing hole; 7. a joint; 8. and (4) inserting the jack.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
As shown in fig. 1-2, the specific structure of the present invention is: a shaft pin type pressure sensor structure comprises a cylindrical elastic body 1, wherein a joint 7 is arranged on one side of the elastic body 1, and the elastic body 1 consists of a stress section 2 in the middle and support sections 3 at two ends; an annular groove 5 is formed between the stress section 2 and the support section 3, and a strain gage 4 is arranged on the elastic body 1 at the annular groove 5; the radial section area of the annular groove 5 is 0.4-0.6 times of the radial section area of the elastic body 1, wherein the radial section of the annular groove 5 is in an annular section shape formed by cutting along the radial direction.
In the above embodiment, the elastic body 1 is a cylinder.
Further optimized in the above embodiment, the elastic body 1 is a polygonal prism.
In the above embodiment, the elastic body 1 is a high-carbon steel metal cylinder.
In order to stably fix the device, a fixing hole 6 is drilled on one side of the elastic body 1.
In order to dismantle and overhaul the device more flexibly, the end face of the elastic body 1 is provided with a jack 8 which is matched with the joint 7 in a clamping manner and is used for plugging.
The working principle of the device is that when the stress section 2 is stressed and weighed, the sensor can calculate the stress numerical value according to the deformation of the strain gauge 4, and when the section of the elastic body at the annular groove is thin, the sensor is easily irreversibly damaged by excessive deformation, so that the sensing range of the sensor is limited; when the cross-sectional dimension of the elastomer at the annular groove is thick, the strain gauge cannot accurately sense small deformation at all, so that a high error is easily formed, the accuracy of the sensor is reduced, and when the cross-sectional radius of the annular groove is 0.4-0.6 times of that of the elastomer, the strain gauge can meet the minimum standard of measurement accuracy while the stress upper limit borne by the whole dimension of the elastomer can be ensured to be reached in the measuring range.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the utility model using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the utility model.
Claims (4)
1. The shaft pin type pressure sensor structure comprises a cylindrical elastic body (1), wherein one side of the elastic body (1) is provided with a joint (7), and the shaft pin type pressure sensor structure is characterized in that the elastic body (1) consists of a stress section (2) in the middle and support sections (3) at two ends; an annular groove (5) is formed between the stress section (2) and the support section (3), and a strain gauge (4) is arranged on the elastic body (1) at the annular groove (5); the radial cross-sectional area of the annular groove (5) is 0.4-0.6 times of the radial cross-sectional area of the elastomer (1).
2. The spindle-pin pressure sensor structure according to claim 1, characterized in that the elastomer body (1) is a cylinder or a prism.
3. The axle-pin pressure sensor structure according to claim 1, characterized in that the elastomer (1) is provided with a fixing hole (6) on one side.
4. The axial pin pressure sensor structure according to claim 1, wherein the end face of the elastic body (1) is provided with a plug hole (8) which is matched with the joint (7) and is used for plugging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121610764.4U CN215338660U (en) | 2021-07-15 | 2021-07-15 | Shaft pin type pressure sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121610764.4U CN215338660U (en) | 2021-07-15 | 2021-07-15 | Shaft pin type pressure sensor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215338660U true CN215338660U (en) | 2021-12-28 |
Family
ID=79567492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121610764.4U Active CN215338660U (en) | 2021-07-15 | 2021-07-15 | Shaft pin type pressure sensor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215338660U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526802A (en) * | 2022-01-25 | 2022-05-24 | 奥佳华智能健康科技集团股份有限公司 | Massage chair weight detection module |
| CN115683407A (en) * | 2022-11-22 | 2023-02-03 | 松诺盟科技有限公司 | Force sensitive core and pressure sensor |
-
2021
- 2021-07-15 CN CN202121610764.4U patent/CN215338660U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526802A (en) * | 2022-01-25 | 2022-05-24 | 奥佳华智能健康科技集团股份有限公司 | Massage chair weight detection module |
| CN114526802B (en) * | 2022-01-25 | 2024-01-30 | 奥佳华智能健康科技集团股份有限公司 | Massage armchair weight detection module |
| CN115683407A (en) * | 2022-11-22 | 2023-02-03 | 松诺盟科技有限公司 | Force sensitive core and pressure sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215338660U (en) | Shaft pin type pressure sensor structure | |
| CN105588669B (en) | Axle pin type three-way force cell sensor | |
| CN102410923B (en) | Rigid and non-linear relation testing device and method of cylindrical fit joint surface | |
| CN101793574B (en) | Piezoelectric type six-dimensional force sensor with adjustable load sharing ratio and test method thereof | |
| CN203053702U (en) | Dynamic and static stiffness testing device for angular contact ball bearing | |
| CN205981523U (en) | Answer variant tension sensor | |
| CN102323058A (en) | Device and method for identifying bearing load of turbo generator set based on strain signal of rotating shaft | |
| CN106197816A (en) | A kind of A seating sensor measuring boom support member stress | |
| CN115539145A (en) | Axial load measurement integrated squirrel cage elastic support and measurement method | |
| CN102650556A (en) | Bearing load identification method based on strain signals of three cross sections of rotating shaft | |
| ATE390622T1 (en) | DEVICE FOR MEASURING LOADS ON ROTATING COMPONENTS | |
| CN2755578Y (en) | Hydraulic comparing force standard instrument | |
| CN100410641C (en) | Pure torque loader for integral flexible structural component | |
| CN108534939A (en) | A kind of cable tension sensor | |
| CN109781321B (en) | Split cylinder type torque sensor | |
| CN209214817U (en) | A kind of uniaxial radial load cell of axial pin type | |
| CN104634508A (en) | Pressure sensor calibration device | |
| CN203534767U (en) | Pressure sensor calibration device | |
| CN110823122A (en) | Bending curvature measuring device and method based on fiber bragg grating and elastic body | |
| CN2521580Y (en) | Roller bearing external diameter pulsation detecting apparatus | |
| CN211651416U (en) | Smooth limit gauge with grouping function | |
| CN209802546U (en) | Wide-range three-dimensional force sensor | |
| CN200947062Y (en) | Digital circular extension-compression bidirectional dynamometer | |
| CN113319132A (en) | Method for measuring rolling force of bar mill based on remote data measurement and control module | |
| CN114878053B (en) | Novel high-precision cable force device of piezoelectric type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |