CN202886037U - Torque sensor - Google Patents
Torque sensor Download PDFInfo
- Publication number
- CN202886037U CN202886037U CN 201220521806 CN201220521806U CN202886037U CN 202886037 U CN202886037 U CN 202886037U CN 201220521806 CN201220521806 CN 201220521806 CN 201220521806 U CN201220521806 U CN 201220521806U CN 202886037 U CN202886037 U CN 202886037U
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- sleeve
- stress plate
- stress
- sides
- resistance strain
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Abstract
The present utility model provides a torque sensor. The sensor is composed of a supporting pedestal, stress plates, a sleeve, a thin wall plate and resistance strain sheets; the supporting pedestal, the stress plate and the sleeve are integrally molded, the sleeve is coaxially and fixedly connected with the supporting pedestal through the tangential stress plates of two sides; the stress plates of the two sides are symmetrical about a central axis of the sleeve, the external side surface of the stress plates of the two sides is a tangential plane of the edge of the sleeve, the thickness of each stress plate is 2 to 5mm; resistance strain sheets are pasted on internal and external side surfaces of the stress plates, and the resistance strain sheet of the stress plate of one side is symmetrical about the center of the stress plate; the sleeve and the supporting pedestal are connected through the thin wall plate along the sleeve normal. The sensor can be used for directly measuring torque of a transmission shaft without dismounting a to-be-measured device; the symmetrically arranged resistance strain sheets of two sides of the stress plates can be used for eliminating influences of temperature on a measuring result; and torque of a to-be-measured object in the stationary condition can be measured.
Description
Technical field
The utility model relates to the experimental measurement technical field, is specially a kind of torque sensor, measures moment of torsion according to the strain gage testing principle.
Background technology
A kind of clamp ring type torque sensor that obtains the torque transmission shaft signal is disclosed in publication number is the Chinese invention patent of CN1752725A.This sensor adopts semi-circular design, only the need bolt/nut can be with the sensor quick-clamping to transmission shaft, when transmission shaft bears moment of torsion, the detrusion that is directly proportional with moment of torsion on the transmission shaft, be passed on the sensor elastomer, adhering resistance strain sheets on sensor elastomer, thus the torque signal of this transmission shaft obtained.But the moment of torsion that this sensor is measured transmission shaft by the mode of clamp ring obtains the moment of torsion of object under test, and measurement mechanism needs dismounting, and measuring accuracy can't guarantee and can't measure the moment of torsion of object under test in static situation, such as residual torque etc.
Summary of the invention
The technical matters that solves
Problem to be solved in the utility model is: when measuring the moment of torsion of transmission shaft by the mode of clamp ring and then obtaining the moment of torsion of object under test, measuring accuracy can't guarantee and can't measure the moment of torsion of object under test in static situation, the utility model proposes a kind of torque sensor for this reason.
Technical scheme
The technical solution of the utility model is:
Described a kind of torque sensor is characterized in that: be comprised of supporting base, stress plate, sleeve, thin-walled part and resistance strain gage; Supporting base, stress plate and sleeve are integral forming structure, and sleeve is fixedly connected with supporting base is coaxial by the tangential stress plate in both sides; The stress plate of both sides is symmetrical with respect to the sleeve central axis line, and the lateral surface of both sides stress plate is the tangential plane at sleeve edge, stress plate thickness at 2mm between the 5mm; Post resistance strain gage at stress plate medial surface and lateral surface, and the resistance strain gage on the lateral stress plate distributes with respect to the stress plate Central Symmetry; Also have along the thin-walled part of sleeve normal direction between sleeve and the supporting seat and be connected.
Beneficial effect
The beneficial effects of the utility model are: can directly measure the moment of torsion of transmission shaft, not need measurement mechanism is dismantled; The resistance strain gage that the stress plate symmetria bilateralis is placed can be got rid of temperature to the impact of measurement result; Can measure the moment of torsion of object under test under quiescent conditions.
Description of drawings
Fig. 1: structural representation of the present utility model;
Fig. 2: partial sectional view of the present utility model;
Fig. 3: scheme of installation of the present utility model.
Wherein: 1. supporting base; 2. stress plate; 3. resistance strain gage; 4. sleeve; 5. thin-walled part; 6. angular contact ball bearing; 7. transmission shaft.
Embodiment
Below in conjunction with specific embodiment the utility model is described:
Torque sensor in the present embodiment is comprised of supporting base 1, stress plate 2, sleeve 4, thin-walled part 5 and resistance strain gage 3.
With reference to accompanying drawing 1, supporting base 1, stress plate 2 and sleeve 4 are integral forming structure.Sleeve 4 is by both sides tangential stress plate 2 and supporting base 1 coaxial being fixedly connected with.Stress plate 2 vertically is located at the two ends, the left and right sides of sleeve 4 in the present embodiment, and sleeve 4 and supporting base 1 are fixed together.The stress plate of both sides is symmetrical with respect to the sleeve central axis line, and the lateral surface of both sides stress plate is the tangential plane at sleeve edge, and between the 5mm, with the precision that guarantees to measure, stress plate thickness is 2mm to stress plate thickness in the present embodiment at 2mm.
With reference to accompanying drawing 1 and accompanying drawing 2., respectively post two sheet resistance foil gauges at medial surface and the lateral surface of a lateral stress plate, and the resistance strain gage on the lateral stress plate distributes with respect to this stress plate Central Symmetry.Also have along the thin-walled part 5 of sleeve normal direction between sleeve and the supporting seat to be connected, sleeve is played fixation.
At sleeve 4 interior established angle contact ball bearings 6, transmission shaft passes sleeve 4 is connected connection with angular contact ball bearing, when transmission shaft 7 output torque, moment of torsion is delivered on the sleeve 4 by angular contact ball bearing 6, the detrusion that sleeve 4 is directly proportional with moment of torsion is passed to makes stress plate 2 that corresponding deformation occur on the stress plate 2 at two ends, the left and right sides, can record torque signal on the sleeve 4 at the resistance strain gage 3 on the stress plate 2.
In the present embodiment, shown in Figure 1, the mean value of the strain gage testing value absolute value of the strain gage testing value absolute value of stress plate upper left side and left stress plate upper right side on the left of calculating, obtain stress plate top, left side and measure average, in like manner can obtain stress plate below, left side and measure that average, right stress plate top are measured average, average is measured in right stress plate below, and then this four measuring average be averaged what obtain is exactly the measured torque value of this sensor.
Claims (1)
1. a torque sensor is characterized in that: be comprised of supporting base, stress plate, sleeve, thin-walled part and resistance strain gage; Supporting base, stress plate and sleeve are integral forming structure, and sleeve is fixedly connected with supporting base is coaxial by the tangential stress plate in both sides; The stress plate of both sides is symmetrical with respect to the sleeve central axis line, and the lateral surface of both sides stress plate is the tangential plane at sleeve edge, stress plate thickness at 2mm between the 5mm; Post resistance strain gage at stress plate medial surface and lateral surface, and the resistance strain gage on the lateral stress plate distributes with respect to the stress plate Central Symmetry; Also have along the thin-walled part of sleeve normal direction between sleeve and the supporting seat and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521806 CN202886037U (en) | 2012-10-12 | 2012-10-12 | Torque sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521806 CN202886037U (en) | 2012-10-12 | 2012-10-12 | Torque sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886037U true CN202886037U (en) | 2013-04-17 |
Family
ID=48077451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220521806 Withdrawn - After Issue CN202886037U (en) | 2012-10-12 | 2012-10-12 | Torque sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865958A (en) * | 2012-10-12 | 2013-01-09 | 西北工业大学 | Torque sensor |
| CN110998265A (en) * | 2017-08-14 | 2020-04-10 | 阿自倍尓株式会社 | Torque detector and method for manufacturing torque detector |
-
2012
- 2012-10-12 CN CN 201220521806 patent/CN202886037U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865958A (en) * | 2012-10-12 | 2013-01-09 | 西北工业大学 | Torque sensor |
| CN110998265A (en) * | 2017-08-14 | 2020-04-10 | 阿自倍尓株式会社 | Torque detector and method for manufacturing torque detector |
| CN110998265B (en) * | 2017-08-14 | 2021-12-21 | 阿自倍尓株式会社 | Torque detector and method for manufacturing torque detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130417 Effective date of abandoning: 20140820 |
|
| RGAV | Abandon patent right to avoid regrant |