CN101639392B - Non-plug-in shaft torque measuring device - Google Patents
Non-plug-in shaft torque measuring device Download PDFInfo
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- CN101639392B CN101639392B CN2009101841164A CN200910184116A CN101639392B CN 101639392 B CN101639392 B CN 101639392B CN 2009101841164 A CN2009101841164 A CN 2009101841164A CN 200910184116 A CN200910184116 A CN 200910184116A CN 101639392 B CN101639392 B CN 101639392B
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- gage beam
- subsidiary arm
- main gage
- inner edge
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Abstract
The invention relates to a non-plug-in shaft torque measuring device which is formed by the combination of two semicircular main measuring arms, two auxiliary measuring arms, two main conducting rings, two auxiliary conducting rings and four pressure rings. Two ends of a measuring disc are affixed to the outer surfaces at the joints of the inner edges inside the two main measuring arms, and the measuring disc is affixed on a strain disc. The measuring device has the advantages of simple structure and convenient installation. Because of the semicircular structure of each component, the non-plug-in measurement of a shaft torque can be realized without disconnecting the installation structure of a measured shaft and changing the installation state of a measured system, and the accuracy of the measurement can be improved. The structure is compact after the components are installed, and the annular symmetric system has little effect on the quality eccentricity of the measured shaft, thereby similarly improving the accuracy of the measurement. The strain disc is affixed to the measuring disc to perform the measurement, only one resistance strain disc is needed to realize the measurement and can be used repeatedly, thus the cost is reduced.
Description
Technical field
The present invention relates to a kind of measurement mechanism, especially relate to a kind of non-plug-in shaft torque measuring device.
Background technology
At present, the measurement of torque transmission shaft mainly adopts dynamometer motor or digital torductor to measure, when measuring, these two kinds of measurement mechanisms all need to pack in the tested system, that is to say and transmission shaft will be connected with dynamometer motor or digital torductor, the process of installing, measuring is very loaded down with trivial details, also higher to the accuracy requirement of installing, otherwise can influence the result of measurement, and these two kinds of methods are adapted under testing laboratory's condition torque transmission shaft being tested, and can't monitor in real time the moment of torsion of the transmission shaft of actual motion equipment.At present there is testing tool company to develop the non-insertion measurement mechanism of measurement axis moment of torsion abroad, it measures the shearing strain that produces on the axle surface because of torsional interaction by strain rosette of being made up of 4 resistance strain gages, according to the radius of axle, shearing strain, spool calculation of parameter such as modulus of shearing obtain moment of torsion.This device has been realized the non-insertion measurement of moment of torsion, but have following point: 1. foil gauge is directly installed on the axle surface, if the shearing strain of axle is less, then the sensitivity of foil gauge is had relatively high expectations, and foil gauge can only use once, and each the measurement needs to use a strain rosette of being made up of 4 foil gauges, and the cost of measurement is higher.2. device adopts powered battery and signal wireless transmission, but battery and signal wireless transmitter etc. all need to be fixed on the axle, must cause mass eccentricity, and the degree of accuracy of measuring is impacted.
Summary of the invention
The applicant is at above-mentioned problem, carried out research and improved, and a kind of simple in structure, easy for installation, non-plug-in shaft torque measuring device that measuring accuracy is high is provided, under the installment state that does not change measured axis, but the moment of torsion of measurement axis.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of non-plug-in shaft torque measuring device comprises:
Two main gage beams and two subsidiary arms, make by insulating material, be semi-round ring shape, the inboard of main gage beam and subsidiary arm is respectively equipped with the inner edge that accounts for circumference 1/4th, the outside is provided with outer rim, the outside surface of outer rim is a circular conical surface, the a plurality of cannelures of outer cause are divided into profile of tooth, the outside surface of main gage beam and subsidiary arm is provided with circumferential recess, during user mode, the inner edge of two main gage beam inboards docks and is fastened in a side of measured axis, and the inner edge of two subsidiary arm inboards docks and be fastened in the opposite side of measured axis, and main gage beam band inner edge side end face contacts with subsidiary arm band inner edge side end face;
Two main conducting rings and two additional conductive rings are semi-round ring shape, and two ends are provided with flanging, are inlaid in respectively in the groove on the outside surface of main gage beam and subsidiary arm, and flanging is stuck in the seam between main gage beam and the subsidiary arm;
Four pressure rings, be semi-round ring shape, inside surface is a circular conical surface, pressure ring makes up on the outer rim that is set in described main gage beam and subsidiary arm in twos, seam between two pressure rings and the interlaced setting of seam between main gage beam and subsidiary arm, pressure ring is connected with main gage beam and subsidiary arm respectively by axial bolt and main gage beam and subsidiary arm is pressed on the measured axis;
Measure sheet, be laminar, two ends stick on the outside surface of inner edge joint of two main gage beam inboards;
Foil gauge sticks on and measures on the sheet, and its lead connects two main conducting rings respectively.
Further:
One side of described main conducting ring and additional conductive ring is respectively equipped with terminal strip.
Described foil gauge is a resistance strain gage.
Technique effect of the present invention is:
A kind of non-plug-in shaft torque measuring device disclosed by the invention, simple in structure, easy for installation, the semi-round ring shape structure of each assembly, need not to take apart the mounting structure of measured axis, the non-insertion that can realize a moment of torsion is measured and do not changed the installment state of system under test (SUT), and is less to the influence of mechanical propertys such as the power transmission of system under test (SUT), vibration noise, improves the degree of accuracy of measuring; Assembly mounted configuration compactness of the present invention, quality is less, and circular symmetrical structure makes the influence of the mass eccentricity of measured axis lessly, can improve the degree of accuracy of measurement equally; Foil gauge is mounted on to measure on the sheet and measures, and only needs a resistance strain gage can realize measuring, and can be repeatedly used, and reduces the cost of test; Adopt main conducting ring and additional conductive ring to constitute the structure of galvanic circle, can be foil gauge power supply and image data by carbon brush, utility appliance such as the power supply of test macro, signal transmission line need not be installed on the measured axis, simplify utility appliance such as test macro must be powered, signal transmission line, improved measuring reliability.
Description of drawings
Fig. 1 is a three-dimensional structure synoptic diagram of the present invention.
Fig. 2 is a central cross-sectional view of the present invention.
Fig. 3 is the A place enlarged drawing of Fig. 2.
Fig. 4 is the three-dimensional structure synoptic diagram of main gage beam.
Fig. 5 is the three-dimensional structure synoptic diagram of subsidiary arm.
Fig. 6 takes the three-dimensional structure synoptic diagram of electricity ring as the leading factor.
Fig. 7 is the three-dimensional structure synoptic diagram of additional conductive ring.
Fig. 8 is the three-dimensional structure synoptic diagram of pressure ring.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Shown in Fig. 1 to 8, the present invention includes two main gage beams 1 and two subsidiary arms 2, they are made by insulating material, as engineering plastics or nylon, main gage beam 1 and subsidiary arm 2 are semi-round ring shape, and main gage beam 1 inboard is provided with the inner edge 101 that accounts for circumference 1/4th, the inboard of subsidiary arm 2 is provided with the inner edge 201 that accounts for circumference 1/4th, the main gage beam 1 and subsidiary arm 2 outsides are provided with outer rim 3, and the outside surface of outer rim 3 is a circular conical surface, and outer rim 3 is divided into profile of tooth by a plurality of cannelures 301.During user mode, the side that the inner edge 101 of two main gage beam 1 inboards docked and be fastened in measured axis 12, the inner edge 201 of two subsidiary arm 2 inboards docks and is fastened in the opposite side of measured axis 12, main gage beam 1 band inner edge 101 side end faces contact (the wide end of promptly main gage beam 1 and the wide end in contact of subsidiary arm 2) with subsidiary arm 2 band inner edges 201 side end faces, and the outside surface of main gage beam 1 and subsidiary arm 2 is provided with circumferencial direction groove 4.Two main conducting rings 5 and two additional conductive rings 6 are made by conductive metallic material, main conducting ring 5 and additional conductive ring 6 are semi-round ring shape, two ends are provided with flanging 7, two main conducting rings 5 are inlaid in the circumferential recess 4 on main gage beam 1 outside surface, two additional conductive rings 6 are inlaid in the circumferential recess 4 on the outside surface of subsidiary arm 2, flanging 7 is stuck in the seam 102 of main gage beam 1 and subsidiary arm 2, makes two pairs of main conducting rings 5 and additional conductive ring 6 constitute two galvanic circles respectively.Four pressure rings 8 are semi-round ring shape, inside surface is a circular conical surface, pressure ring 8 makes up on the outer rim 3 that is set in main gage beam 1 and subsidiary arm 2 in twos, seam 801 between two pressure rings 8 and the seam 102 interlaced settings between main gage beam 1 and the subsidiary arm 2, pressure ring 8 is provided with axial screw hole, pressure ring 8 is connected with main gage beam 1 and subsidiary arm 2 respectively by a plurality of axial bolt 9, like this, main gage beam 1 and subsidiary arm 2 by having circular conical surface outer rim 3 and the effect of the pressure ring 8 that has circular conical surface under hold tightly on measured axis 12.Measure sheet 10 and be laminar, two ends stick on the outside surface of inner edge 101 joints of two main gage beam 1 inboards, usually measure sheet 10 and can select the rigidity materials with smaller, foil gauge 11 sticks on to be measured on the sheet 10, the lead of foil gauge 11 connects two galvanic circles that are made of main conducting ring 5 and additional conductive ring 6 respectively, in the present embodiment, one side of main conducting ring 5 is provided with terminal strip 501, one side of additional conductive ring 6 is provided with terminal strip 601, the lead of foil gauge 11 can connect terminal strip 501 or terminal strip 601 respectively, and foil gauge 11 is a resistance strain gage.
When measured axis 12 is carried out torque measurement, do not need measured axis 12 is dismantled, directly with two main gage beams 1, two subsidiary arms 2, two main conducting rings 5, two additional conductive rings 6 and four pressure rings 8 by being installed on the measured axis 12 shown in Fig. 1,2,3, the outside surface that sheet 10 two ends stick on inner edge 101 joints of two main gage beam 1 inboards will be measured, and measuring stickup foil gauge 11 on the sheet 10, the lead of foil gauge 11 connects two galvanic circles that are made of main conducting ring 5 and additional conductive ring 6 respectively.The carbon brush that will be connected with strain measurement system abuts on two galvanic circles to foil gauge 11 power supplies and carries out signals collecting, and is good for guaranteeing contact, also can use the mode of a plurality of carbon brush group parallel connection.Two spacings are between the L xsect on the measured axle 12 because two main gage beams 1 are fixed on by the pressure ring 8 of both sides, when measured axle 12 reverses, torsional deflection between two main gage beam 1 constant cross-section is delivered on two main gage beams 1, small relatively moving takes place in two main gage beams 1, make the measurement sheet 10 of inner edge 101 joints that are installed in two main gage beams 1 produce strain, strain measurement system is by the strain data of carbon brush collection foil gauge 11, by this strain data, the radius of spacing L between two main gage beam 1 constant cross-section and measured axle 12 can converse the actual torque (these computing method are prior art) of measured axle 12.
Claims (3)
1. non-plug-in shaft torque measuring device is characterized in that comprising:
Two main gage beams and two subsidiary arms, make by insulating material, be semi-round ring shape, the inboard of main gage beam and subsidiary arm is respectively equipped with the inner edge that accounts for circumference 1/4th, the outside is provided with outer rim, the outside surface of outer rim is a circular conical surface, the a plurality of cannelures of outer cause are divided into profile of tooth, the outside surface of main gage beam and subsidiary arm is provided with circumferential recess, during user mode, the inner edge of two main gage beam inboards docks and is fastened in a side of measured axis, and the inner edge of two subsidiary arm inboards docks and be fastened in the opposite side of measured axis, and main gage beam band inner edge side end face contacts with subsidiary arm band inner edge side end face;
Two main conducting rings and two additional conductive rings are semi-round ring shape, and two ends are provided with flanging, are inlaid in respectively in the groove on the outside surface of main gage beam and subsidiary arm, and flanging is stuck in the seam between main gage beam and the subsidiary arm;
Four pressure rings, be semi-round ring shape, inside surface is a circular conical surface, pressure ring makes up on the outer rim that is set in described main gage beam and subsidiary arm in twos, seam between two pressure rings and the interlaced setting of seam between main gage beam and subsidiary arm, pressure ring is connected with main gage beam and subsidiary arm respectively by axial bolt and main gage beam and subsidiary arm is pressed on the measured axis;
Measure sheet, be laminar, two ends stick on the outside surface of inner edge joint of two main gage beam inboards;
Foil gauge sticks on and measures on the sheet, and its lead connects two main conducting rings respectively.
2. according to the described non-plug-in shaft torque measuring device of claim 1, it is characterized in that: a side of described main conducting ring and additional conductive ring is respectively equipped with terminal strip.
3. according to the described non-plug-in shaft torque measuring device of claim 1, it is characterized in that: described foil gauge is a resistance strain gage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101841164A CN101639392B (en) | 2009-08-18 | 2009-08-18 | Non-plug-in shaft torque measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101841164A CN101639392B (en) | 2009-08-18 | 2009-08-18 | Non-plug-in shaft torque measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101639392A CN101639392A (en) | 2010-02-03 |
| CN101639392B true CN101639392B (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101841164A Expired - Fee Related CN101639392B (en) | 2009-08-18 | 2009-08-18 | Non-plug-in shaft torque measuring device |
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| CN (1) | CN101639392B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115112277B (en) * | 2019-06-06 | 2024-09-03 | 日本电产新宝株式会社 | Torque detection sensor, power transmission device and robot |
| CN114459650A (en) * | 2021-12-24 | 2022-05-10 | 中国航空工业集团公司北京长城计量测试技术研究所 | Non-intrusive torque sensor and torque measurement structure with same |
| CN114608733B (en) * | 2022-03-25 | 2024-11-08 | 合肥工业大学 | Wireless torque sensor for realizing in-situ measurement of torque of high-speed rotating shaft system |
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2009
- 2009-08-18 CN CN2009101841164A patent/CN101639392B/en not_active Expired - Fee Related
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| CN101639392A (en) | 2010-02-03 |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi Oriental Changfeng Marine Propulsion Co., Ltd. Assignor: The 702th Research Institute of China Shipbuilding Industry Corporation Contract record no.: 2012320000688 Denomination of invention: Non-plug-in shaft torque measuring device Granted publication date: 20110216 License type: Exclusive License Open date: 20100203 Record date: 20120601 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20170818 |
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| CF01 | Termination of patent right due to non-payment of annual fee |