CN110553768A - Novel shear beam tension and compression force measuring sensor - Google Patents
Novel shear beam tension and compression force measuring sensor Download PDFInfo
- Publication number
- CN110553768A CN110553768A CN201910918870.XA CN201910918870A CN110553768A CN 110553768 A CN110553768 A CN 110553768A CN 201910918870 A CN201910918870 A CN 201910918870A CN 110553768 A CN110553768 A CN 110553768A
- Authority
- CN
- China
- Prior art keywords
- strain gauge
- resistance strain
- flange plate
- overload protection
- shaped groove
- 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.)
- Pending
Links
- 238000007906 compression Methods 0.000 title claims abstract description 15
- 230000006835 compression Effects 0.000 title abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 24
- 238000010008 shearing Methods 0.000 claims description 17
- 230000008859 change Effects 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2218—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/225—Measuring circuits therefor
- G01L1/2262—Measuring circuits therefor involving simple electrical bridges
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to the technical field of sensors, and discloses a novel shear beam tension and compression force measuring sensor which comprises an upper flange plate, a lower flange plate, a shear beam, an upper U-shaped groove, a lower U-shaped groove, an upper overload protection groove, a lower overload protection groove, a sleeve, a line pressing nut, a cable and a Wheatstone bridge for measuring stress change, wherein the cable is connected with an external power supply so as to supply power to the Wheatstone bridge, U is power supply voltage, when the upper flange plate and the lower flange plate are stressed, the resistance of a resistance strain gauge R1 and the resistance of a resistance strain gauge R3 are increased, the resistance of the resistance strain gauge R2 and the resistance strain gauge R4 are reduced, the bridge generates voltage difference to generate an output signal voltage U 0, the stress change condition is calculated according to the output signal voltage U 0, the stress measurement precision is high, the upper flange plate, the lower flange plate and the shear beam are parallel and vertical to each other, and the overload protection groove and the U-shaped groove between the upper flange plate and the lower flange plate are machined by wire cutting.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to a novel tension and compression force measuring sensor for a shear beam.
Background
A small-sized hydraulic machine tool device is used for press mounting of shaft and shaft sleeve parts and pressing of non-fine powder and plastic products, and is mainly suitable for assembly in a flowing water manner in the industries of bearings, washing machines, electric appliances, automobiles, motors and the like. Along with the increasing competition of market environment, the product competition is more and more fierce, the assembly efficiency and the cost reduction of a bearing and a shaft need to be improved, the size of the press-mounting force cannot be controlled by the existing bearing press-mounting machine, the press-mounting force is too large, parts such as a small shaft, a bearing, a shaft sleeve and the like are often pressed to deform or directly damage, the shaft cannot be completely pressed into the shaft sleeve and the bearing due to the too small press-mounting force, and a novel high-precision pressure sensor is urgently needed to assist the bearing press-mounting machine to accurately control the size of the press-mounting force so as to improve the production efficiency and the product qualification.
In the prior art, the accuracy of the force sensor is not high.
Disclosure of Invention
The invention aims to provide a novel shear beam tension-compression force transducer, aiming at solving the problem that the force transducer in the prior art is low in precision.
The invention is realized in this way, a new shear beam tension-compression force cell sensor, including the upper flange, lower flange, shear beam, upper U-shaped groove, lower U-shaped groove, upper pressure to overload protective groove, lower pressure to overload protective groove, bush, line ball nut, cable conductor and Wheatstone bridge used for measuring the stress variation; the upper flange plate is provided with four threaded holes, the right side of the upper flange plate is connected with the shearing beam, an upper U-shaped groove is formed below the upper flange plate, an upper pressing overload protection groove is formed between the left side of the upper flange plate and the shearing beam, and the upper pressing overload protection groove is connected with the upper U-shaped groove; the lower flange plate is provided with four threaded holes, the left side of the lower flange plate is connected with the shearing beam, a lower U-shaped groove is formed above the lower flange plate, a downward pressing overload protection groove is formed between the right side of the lower flange plate and the shearing beam, and the downward pressing overload protection groove is connected with the lower U-shaped groove; the sleeve is provided with a threaded hole, the pressing line nut is arranged on the sleeve, the cable is fixed through the pressing line nut, one end of the cable is connected with the Wheatstone bridge, and the other end of the cable is electrically connected with a power supply; the wheatstone bridge comprises a resistance strain gauge R1, a resistance strain gauge R2, a resistance strain gauge R3 and a resistance strain gauge R4, wherein a first end of the resistance strain gauge R1 is coupled to a positive power supply, a first end of the resistance strain gauge R4 is coupled to a second end of the resistance strain gauge R1, a second end of the resistance strain gauge R4 is coupled to a negative power supply, a first end of the resistance strain gauge R2 is coupled to a first end of the resistance strain gauge R1, a first end of the resistance strain gauge R3 is coupled to a second end of the resistance strain gauge R2, and a second end of the resistance strain gauge R3 is coupled to a negative power supply; the resistance strain gauge R1, the resistance strain gauge R2, the resistance strain gauge R3, and the resistance strain gauge R4 are provided on the shear beam.
Furthermore, the shearing beam, the upper flange plate and the lower flange plate are integrally formed.
Compared with the prior art, the cable is connected with an external power supply to supply power to a Wheatstone bridge, U is a power supply voltage, when the upper flange plate and the lower flange plate are stressed, the resistances of the resistance strain gauge R1 and the resistance strain gauge R3 are increased, the resistances of the resistance strain gauge R2 and the resistance strain gauge R4 are reduced, the bridge generates a voltage difference to generate an output signal voltage U 0, the stress change condition is calculated according to the output signal voltage U 0, the stress measurement precision is high, the upper flange plate and the lower flange plate are parallel and vertical to the shearing beam, and the overload protection groove and the U-shaped groove between the upper flange plate and the lower flange plate are processed by wire cutting, so that the sensor is low in overall height, simple and compact in structure, convenient to install and disassemble, small in installation space and low in economic cost.
Drawings
FIG. 1 is a schematic perspective view of a novel shear beam tension-compression load cell provided in an embodiment of the present invention;
FIG. 2 is an exploded view of a novel shear beam tension/compression load cell provided by an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a novel shear beam tension/compression load cell provided by an embodiment of the present invention;
Fig. 4 is a schematic circuit diagram of a wheatstone bridge for a novel shear beam tension-compression load cell according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
Referring to fig. 1-4, preferred embodiments of the present invention are provided.
A novel tension-compression force measuring sensor for a shearing beam 4 comprises an upper flange plate 2, a lower flange plate 3, the shearing beam 4, an upper U-shaped groove 6, a lower U-shaped groove 7, an upper compression overload protection groove 8, a lower compression overload protection groove 9, a sleeve 10, a line pressing nut 11, a cable 12 and a Wheatstone bridge for measuring stress variation; the upper flange 2 is provided with four threaded holes, the right side of the upper flange 2 is connected with the shearing beam 4, an upper U-shaped groove 6 is formed below the upper flange 2, an upper pressing overload protection groove 8 is formed between the left side of the upper flange 2 and the shearing beam 4, and the upper pressing overload protection groove 8 is connected with the upper U-shaped groove 6; the lower flange plate 3 is provided with four threaded holes, the left side of the lower flange plate 3 is connected with the shearing beam 4, a lower U-shaped groove 7 is formed above the lower flange plate 3, a downward pressing overload protection groove 9 is formed between the right side of the lower flange plate 3 and the shearing beam 4, and the downward pressing overload protection groove 9 is connected with the lower U-shaped groove 7; a threaded hole is formed in the sleeve 10, a line pressing nut 11 is arranged on the sleeve 10, a cable 12 is fixed through the line pressing nut 11, one end of the cable 12 is connected with the Wheatstone bridge, and the other end of the cable 12 is electrically connected with a power supply; the wheatstone bridge comprises a resistance strain gauge R1, a resistance strain gauge R2, a resistance strain gauge R3 and a resistance strain gauge R4, wherein a first end of the resistance strain gauge R1 is coupled to the positive pole of a power supply, a first end of the resistance strain gauge R4 is coupled to a second end of the resistance strain gauge R1, a second end of the resistance strain gauge R4 is coupled to the negative pole of the power supply, a first end of the resistance strain gauge R2 is coupled to a first end of the resistance strain gauge R1, a first end of the resistance strain gauge R3 is coupled to a second end of the resistance strain gauge R2, and a second end of the resistance strain gauge R36; the resistance strain gauge R1, the resistance strain gauge R2, the resistance strain gauge R3, and the resistance strain gauge R4 are provided on the shear beam 4.
The cable 12 is connected with an external power supply to supply power to a Wheatstone bridge, U is a power supply voltage, when the upper flange plate 2 and the lower flange plate 3 are stressed, the resistances of the resistance strain gauge R1 and the resistance strain gauge R3 are increased, the resistances of the resistance strain gauge R2 and the resistance strain gauge R4 are reduced, the bridge generates a voltage difference at the moment, an output signal voltage U 0 is generated, the stress change condition is calculated according to the output signal voltage U 0, the stress measurement precision is high, the upper flange plate 2 and the lower flange plate 3 are parallel and vertical to the shearing beam 4, and an overload protection groove and a U-shaped groove between the upper flange plate 2 and the lower flange plate are processed by wire cutting, so that the sensor is low in overall height, simple and compact in structure, convenient to install and disassemble, small in installation space and low in economic cost.
specifically, the shear beam 4, the upper flange 2 and the lower flange 3 are integrally formed; thus, the whole product is convenient to process and produce.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. a novel shear beam tension-compression force measuring sensor is characterized by comprising an upper flange (2), a lower flange (3), a shear beam (4), an upper U-shaped groove (6), a lower U-shaped groove (7), an upper pressing overload protection groove (8), a lower pressing overload protection groove (9), a sleeve (10), a line pressing nut (11), a cable (12) and a Wheatstone bridge for measuring stress variation; the upper flange plate (2) is provided with four threaded holes, the right side of the upper flange plate (2) is connected with the shearing beam (4), an upper U-shaped groove (6) is formed below the upper flange plate (2), an upper pressing overload protection groove (8) is formed between the left side of the upper flange plate (2) and the shearing beam (4), and the upper pressing overload protection groove (8) is connected with the upper U-shaped groove (6); the lower flange plate (3) is provided with four threaded holes, the left side of the lower flange plate (3) is connected with the shearing beam (4), a lower U-shaped groove (7) is formed above the lower flange plate (3), a downward pressing overload protection groove (9) is formed between the right side of the lower flange plate (3) and the shearing beam (4), and the downward pressing overload protection groove (9) is connected with a lower U-shaped groove (10); a threaded hole is formed in the sleeve (10), the line pressing nut (11) is arranged on the sleeve, the cable (12) is fixed through the line pressing nut (13), one end of the cable is connected with the Wheatstone bridge, and the other end of the cable is electrically connected with a power supply; the wheatstone bridge comprises a resistance strain gauge R1, a resistance strain gauge R2, a resistance strain gauge R3 and a resistance strain gauge R4, wherein a first end of the resistance strain gauge R1 is coupled to a positive power supply, a first end of the resistance strain gauge R4 is coupled to a second end of the resistance strain gauge R1, a second end of the resistance strain gauge R4 is coupled to a negative power supply, a first end of the resistance strain gauge R2 is coupled to a first end of the resistance strain gauge R1, a first end of the resistance strain gauge R3 is coupled to a second end of the resistance strain gauge R2, and a second end of the resistance strain gauge R3 is coupled to a negative power supply; the resistance strain gauge R1, the resistance strain gauge R2, the resistance strain gauge R3, and the resistance strain gauge R4 are provided on the shear beam (4).
2. A novel shear beam tension-compression load cell as claimed in claim 1, wherein said shear beam (4), upper flange (2) and lower flange (3) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910918870.XA CN110553768A (en) | 2019-09-26 | 2019-09-26 | Novel shear beam tension and compression force measuring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910918870.XA CN110553768A (en) | 2019-09-26 | 2019-09-26 | Novel shear beam tension and compression force measuring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110553768A true CN110553768A (en) | 2019-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910918870.XA Pending CN110553768A (en) | 2019-09-26 | 2019-09-26 | Novel shear beam tension and compression force measuring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110553768A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067185A (en) * | 2020-10-15 | 2020-12-11 | 深圳市鑫精诚科技有限公司 | Shaft seat type sensor for sensing tension |
| CN112082685A (en) * | 2020-10-15 | 2020-12-15 | 深圳市鑫精诚科技有限公司 | Strain seat type tension sensor |
| CN112284613A (en) * | 2020-10-27 | 2021-01-29 | 深圳市鑫精诚科技有限公司 | Calibration method of force sensor |
| CN113358268A (en) * | 2021-06-07 | 2021-09-07 | 中国工程物理研究院总体工程研究所 | Pressure sensor |
| CN116197475A (en) * | 2023-02-06 | 2023-06-02 | 青岛高测科技股份有限公司 | Feed control method, medium, control device of feed assembly and wire cutting machine |
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| CN2643295Y (en) * | 2003-07-25 | 2004-09-22 | 广州电测仪器厂 | Thin plate type weighing sensor |
| CN201255654Y (en) * | 2008-09-05 | 2009-06-10 | 宁波柯力电气制造有限公司 | Double-range weighing sensor |
| CN101710007A (en) * | 2009-12-10 | 2010-05-19 | 陈新 | Concrete wall body expansion internal stress measuring sensor and measuring method |
| CN104931166A (en) * | 2015-06-30 | 2015-09-23 | 安徽智敏电气技术有限公司 | Tension sensor |
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| CN208688624U (en) * | 2018-08-24 | 2019-04-02 | 霍丁格包尔文(苏州)电子测量技术有限公司 | A kind of tension compression bidirectional low capacity weighing sensor |
| CN210426837U (en) * | 2019-09-26 | 2020-04-28 | 深圳市鑫精诚科技有限公司 | Novel shear beam tension and compression force measuring sensor |
-
2019
- 2019-09-26 CN CN201910918870.XA patent/CN110553768A/en active Pending
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| CN2643295Y (en) * | 2003-07-25 | 2004-09-22 | 广州电测仪器厂 | Thin plate type weighing sensor |
| CN201255654Y (en) * | 2008-09-05 | 2009-06-10 | 宁波柯力电气制造有限公司 | Double-range weighing sensor |
| CN101710007A (en) * | 2009-12-10 | 2010-05-19 | 陈新 | Concrete wall body expansion internal stress measuring sensor and measuring method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067185A (en) * | 2020-10-15 | 2020-12-11 | 深圳市鑫精诚科技有限公司 | Shaft seat type sensor for sensing tension |
| CN112082685A (en) * | 2020-10-15 | 2020-12-15 | 深圳市鑫精诚科技有限公司 | Strain seat type tension sensor |
| CN112284613A (en) * | 2020-10-27 | 2021-01-29 | 深圳市鑫精诚科技有限公司 | Calibration method of force sensor |
| CN113358268A (en) * | 2021-06-07 | 2021-09-07 | 中国工程物理研究院总体工程研究所 | Pressure sensor |
| CN116197475A (en) * | 2023-02-06 | 2023-06-02 | 青岛高测科技股份有限公司 | Feed control method, medium, control device of feed assembly and wire cutting machine |
| CN116197475B (en) * | 2023-02-06 | 2024-05-17 | 青岛高测科技股份有限公司 | Feed control method, medium, control device of feed assembly and wire cutting machine |
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