CN110220620A - A kind of torsion sensor of built-in motor - Google Patents
A kind of torsion sensor of built-in motor Download PDFInfo
- Publication number
- CN110220620A CN110220620A CN201910631787.4A CN201910631787A CN110220620A CN 110220620 A CN110220620 A CN 110220620A CN 201910631787 A CN201910631787 A CN 201910631787A CN 110220620 A CN110220620 A CN 110220620A
- Authority
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- China
- Prior art keywords
- axle sleeve
- axis
- interconnecting piece
- connector
- built
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000011888 foil Substances 0.000 abstract description 8
- 230000002146 bilateral effect Effects 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of torsion sensors of built-in motor, including axis, axle sleeve, sensing elements and setting and the connector on axle sleeve, axle sleeve and axis are socketed, axis is fixedly connected and rotates synchronously with axle sleeve, boss surfaces are provided with sensing elements, connector and axle sleeve are socketed, and connector is fixed on one end of axle sleeve and rotates synchronously with axle sleeve.By using the mode that Y-axis is socketed, the acquisition of bilateral torsion is realized.By using interconnecting piece, realizes that motor is separated with sensor, guarantee safety in utilization.By improving integrated level using interconnecting piece as a part of isolator.Torsion signal is acquired using foil gauge, precision is high, and sensitivity is good.
Description
Technical field
The present invention relates to sensor field more particularly to a kind of torsion sensors of built-in motor.
Background technique
With the development of economy and technology, it is several that bicycle trade also experienced bicycle, electric vehicle and moped
In the stage, wherein moped also starts to turn to the driving of built-in motor power-assisted from front and back power-assisted wheel drive, wherein torsion sensor
The important component of built-in motor, the design quality of torsion sensor, directly affect built-in motor driving effect and
Reliability, existing torsion sensor generallys use the mode of measurement deformation under torsion or heat treatment to measure torsion, and exists
Can not bilateral measurement the shortcomings that, while the device should also be separated when no manpower is inputted with motor, to guarantee riding for personnel
Safety.
Summary of the invention
For the above defect of the existing technology, it is a primary object of the present invention to overcome the deficiencies in the prior art it
Place, disclose a kind of torsion sensor of built-in motor, including axis, axle sleeve, sensing elements and setting with axle sleeve on connector,
The axle sleeve and axis are socketed, and the axis is fixedly connected and rotates synchronously with axle sleeve, and boss surfaces are provided with sensing elements, the company
Fitting and axle sleeve are socketed, and connector is fixed on one end of axle sleeve and rotates synchronously with axle sleeve.
Further, one end of the axis is provided with first connecting portion, is provided with second connecting portion on the inside of the axle sleeve, institute
The second connecting portion connection of the first connecting portion and axle sleeve of stating axis cooperates, and is integrally formed.
Further, it is provided with third interconnecting piece on the outside of the axle sleeve, is provided with the 4th interconnecting piece on the inside of the connector,
The third interconnecting piece of the axle sleeve is integrally formed with the connection of the 4th interconnecting piece of connector with merging.
Further, the sensing elements are foil gauge, optical strain inductor, magnetic strain sensor or location sensitive
Device.
Further, the first connecting portion of the axis and the second connecting portion of axle sleeve are that spline fitted or key cooperation or pin are matched
It closes.
Further, in matching for the second connecting portion of the first connecting portion and axle sleeve of the axis is combined into interference fit or zero
Cooperation.
Further, the 4th interconnecting piece of the third interconnecting piece of the axle sleeve and the connector is spline fitted, key is matched
It closes or pin cooperates.
Further, in matching for the 4th interconnecting piece of the third interconnecting piece and connector of the axle sleeve is combined into interference
Cooperation or zero cooperation.
Further, institute's axle sleeve is additionally provided with slip ring, and slip ring is socketed on axis, and the other end and sensing elements of slip ring connect
It connects.
Further, the connector is additionally provided with the 5th interconnecting piece, and the connector is by the 5th interconnecting piece and unidirectionally
Device is connected and is exported outward, and the isolator is unilateral bearing, roller bearing or ratchet, and the 5th interconnecting piece can be with isolator
It is fixedly connected or the 5th interconnecting piece can be directly as a part for constituting isolator.
The invention has the benefit that
1) mode being socketed by using Y-axis, realizes the acquisition of bilateral torsion.
2) it by using interconnecting piece, realizes that motor is separated with sensor, guarantees safety in utilization.
3) by improving integrated level using interconnecting piece as a part of isolator.
4) torsion signal is acquired using foil gauge, precision is high, and sensitivity is good.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the torsion sensor of built-in motor of the present invention；
Fig. 2 is a kind of band slip ring structure schematic diagram of torsion sensor of built-in motor of the present invention；
Fig. 3 is a kind of torsion sensor band protective cover structure diagram of built-in motor of the present invention；
Fig. 4 is the schematic diagram of the section structure of Fig. 3；
Fig. 5 is axis-sleeve combination structural schematic diagram；
Fig. 6 is the structural schematic diagram of axle sleeve；
Fig. 7 is the schematic diagram of the section structure of axle sleeve.
Fig. 8 is the structural schematic diagram of axis；
Fig. 9 is the structural schematic diagram of connector；
Appended drawing reference is as follows:
1, axis；2, axle sleeve；3, sensing elements；4, connector；5, first connecting portion；6, second connecting portion；7, third connects
Portion；8, the 4th interconnecting piece；9, the 5th interconnecting piece；10, slip ring；11, protective case, 71, limiting section.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention is described in further detail.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to
It is of the invention in limiting.
A kind of torsion sensor of built-in motor, comprising: axis 1, axle sleeve 2, sensing elements 3 and setting and the company on axle sleeve 2
Fitting 4, axle sleeve 2 and axis 1 are socketed, and axis 1 is fixedly connected and rotates synchronously with axle sleeve 2, and 2 surface of axle sleeve is provided with sensing elements 3, even
Fitting 4 and axle sleeve 2 are socketed, and connector 4 is fixed on one end of axle sleeve 2 and rotates synchronously with axle sleeve 2.Specifically,
A kind of torsion sensor of built-in motor, as shown in figs 1-9, comprising: axis 1, axle sleeve 2, sensing elements 3 and setting with
Connector 4 on axle sleeve 2, wherein one end of axis 1 is provided with first connecting portion 5, and the inside of axle sleeve 2 is provided with second connecting portion
6, the outside of axle sleeve 2 is provided with third interconnecting piece 7, and axle sleeve 2 can connect with axle sleeve 2, the first connecting portion 5 and axle sleeve 2 of the axis 1 of axis 1
Second connecting portion 6 cooperate constitute connection be integrally formed and can rotate synchronously so that axis 1 is fixedly connected with axle sleeve 2.
Wherein, the first connecting portion 5 of axis 1 and the second connecting portion 6 of axle sleeve 2 are spline fitted, key cooperation or sell cooperation, and
Interference fit or zero cooperation can be used in the first connecting portion 5 of axis 1 and the second connecting portion 6 of axle sleeve 2, particularly, in the present embodiment,
The first connecting portion 5 of axis 1 and the second connecting portion 6 of axle sleeve 2 use spline fitted.
As a preferred embodiment, the first connecting portion 5 of axis 1 is matched with the second connecting portion 6 of axle sleeve 2 using slight interference
It closes, in above-mentioned fit system, spline fitted can effectively realize the mutual transmitting of power, and interference fit then ensure that the biography of torsion
Passing will not cause to interrupt because of gap, and make axis 1 and axle sleeve 2 will not delamination.
It should be noted that when axis 1 is connect with axle sleeve 2, axis 1 is arranged with axle sleeve 2 coaxial 1 in the present embodiment, constitute concentric
Structure, the part Chong Die with axle sleeve 2 of axis 1 only relies on first connecting portion 5 and second connecting portion 6 is cooperatively connected, the portion of remaining overlapping
Point there are gaps, it may be assumed that and the inner wall of axle sleeve 2 is not contacted with the outer wall of axis 1, and, unilateral gap is greater than 0.05mm, preferable as one
Embodiment, the gap control in 0.05-1mm.
Connector 4 and axle sleeve 2 are socketed, wherein the inside of connector 4 is provided with the 4th interconnecting piece 8, and the third of axle sleeve 2 connects
4th interconnecting piece 8 of socket part 7 and connector 4, which cooperates, constitutes connection, so that connector 4 is integrally formed with axle sleeve 2 and can be same
Step rotation, special connector 4 are fixed on one end of axle sleeve 2, and the other end of axle sleeve 2 can be connect with input mechanisms such as cranks.
Wherein, the 4th interconnecting piece 8 of the third interconnecting piece 7 of axle sleeve 2 and connector 4 is that spline fitted, key cooperation or pin are matched
It closes, and the 4th interconnecting piece 8 of the third interconnecting piece 7 of axle sleeve 2 and connector 4 is that interference fit or zero cooperate, in the present embodiment, set
Third interconnecting piece 7 and connector 4 the 4th interconnecting piece 8 be spline fitted.
As a preferred embodiment, the third interconnecting piece 7 of axle sleeve 2 is using small with the 4th interconnecting piece 8 of connector 4
Interference fit.
Certainly, above-mentioned cooperation bayonet fittings can also be used guarantee power transmitting and two components axis 1 to fixation.
Particularly, above-mentioned connector 4 is also set up limited with the connection cooperation of axle sleeve 2 in the third interconnecting piece 7 of axle sleeve 2
Position portion 71, so that good axially position may be implemented in the cooperation of connector 4 and axle sleeve 2.Connector 4 is prevented to be arranged to axle sleeve 2
The other end of third interconnecting piece 7 is mobile.
2 surface of axle sleeve is provided with sensing elements 3, and sensing elements 3 are foil gauge, optical strain inductor, magnetic strain sensing
Device or position sensor.
In the present embodiment, sensing elements 3 are foil gauge, in addition, axle sleeve 2 is additionally provided with slip ring 10, slip ring 10 is socketed in axis 1
On, one end of slip ring 10 and foil gauge are electrically connected.
To protect sensing elements 3, avoids the substances such as sensing elements 3 and lubricating oil in motor from contacting, cause sensing elements 3
The problems such as failure, also settable protective case 11, in the present embodiment, which is circular plastic sheath, one end of plastic sheath
It is contacted with slip ring 10, the other end of plastic sheath is directly or indirectly contacted with connector 4, to guarantee good leakproofness, plastic sheath
Contacting one end with connector 4 can be used fluorine rubber ring, silica gel ring or circle containing asphalt felt, to guarantee protective case 11 and connector 4
It is tightly connected and adapts to the operating condition of this two components slow rotation friction.
Particularly, connector 4 is additionally provided with the 5th interconnecting piece 9, and connector 4 is connect by the 5th interconnecting piece 9 with isolator
And export outward, isolator is unilateral bearing, roller bearing or ratchet, and the 5th interconnecting piece 9 can be fixedly connected with isolator, Gu
Determining mode can be, key connection, spline connection, interference fit, alternatively, the 5th interconnecting piece 9 can be directly as composition isolator
One part.
In the present embodiment, the 5th interconnecting piece 9 of connector 4 is directly as a part for constituting isolator, wherein connection
It is socketed with roller bearing on the outside of 5th interconnecting piece 9 of part 4, is provided with output precision on the outside of roller bearing, when axis 1 rotates in the forward direction,
Band follower link 4 rotates in the forward direction, and at this time due to friction, the 5th interconnecting piece 9 of connector 4 will drive thousand an ancient unit of weight to eject outward, with sieve
Pulling shaft holds the outer ring dieback of connection, and when axis 1 is stalled or rotated backward, the 5th interconnecting piece 9 of connector 4 will drive thousand an ancient unit of weight reversed
Rotation, makes its contraction, at this point, roller bearing is separated with outer ring, realizes clutch.
The working principle of the present apparatus is, when axle sleeve 2 has positive force input, the other end of axle sleeve 2 is due to being connected with connection
The other end of part 4, axle sleeve 2 will become load end, at this point, axle sleeve 2 generates deformation under force, the strain being affixed on axis 1
Piece can acquire this deformation and be converted into the electric signal for analysis.When axis 1 has positive force input, since axis 1 and axle sleeve 2 are same
Axle sleeve 2 connects, and axis 1 and axle sleeve 2 connects by interconnecting piece so that the rotation transmitting beaming of axis 1 covers on 2, the interconnecting piece with connect
Part 4 is respectively at the two sides of axle sleeve 2, so that axle sleeve 2 can generate wrench deformation under force, the foil gauge being affixed on axis 1
This deformation can be acquired and be converted into the electric signal for analysis.
When axis 1 or axle sleeve 2 input opposite force or motor work and axis 1 stop operating when, one way component will guarantee axis 1 with
Output par, c and/or motor separation, avoid axis 1 dragged, cause accident, when axis 1 inputs positive force, the engagement of individual event component,
Power exports outward by connector 4.
A kind of torsion sensor of built-in motor of the invention has the beneficial effect that
1) mode being socketed by using Y-axis, realizes the acquisition of bilateral torsion.
2) it by using interconnecting piece, realizes that motor is separated with sensor, guarantees safety in utilization.
3) by improving integrated level using interconnecting piece as a part of isolator.
4) torsion signal is acquired using foil gauge, precision is high, and sensitivity is good.
The foregoing is merely a prefered embodiment of the invention, practical range not for the purpose of limiting the invention；If not departing from this
The spirit and scope of invention, modify or equivalently replace the present invention, and should all cover the protection in the claims in the present invention
In range.
Claims (10)
1. a kind of torsion sensor of built-in motor, which is characterized in that including on axis, axle sleeve, sensing elements and setting and axle sleeve
Connector, the axle sleeve and axis be socketed, and the axis is fixedly connected and rotates synchronously with axle sleeve, and boss surfaces are provided with sensing original
Part, the connector and axle sleeve are socketed, and connector is fixed on one end of axle sleeve and rotates synchronously with axle sleeve.
2. a kind of torsion sensor of built-in motor according to claim 1, which is characterized in that one end of the axis is arranged
There is first connecting portion, second connecting portion, the first connecting portion of the axis and the second connection of axle sleeve are provided on the inside of the axle sleeve
Portion's connection cooperation, and be integrally formed.
3. a kind of torsion sensor of built-in motor according to claim 1, which is characterized in that setting on the outside of the axle sleeve
There is a third interconnecting piece, is provided with the 4th interconnecting piece on the inside of the connector, the of the third interconnecting piece of the axle sleeve and connector
The connection of four interconnecting pieces is integrally formed with merging.
4. a kind of torsion sensor of built-in motor according to claim 1, which is characterized in that the sensing elements are to answer
Become piece, optical strain inductor, magnetic strain sensor or position sensor.
5. a kind of torsion sensor of built-in motor according to claim 2, which is characterized in that the first connection of the axis
The second connecting portion of portion and axle sleeve is spline fitted or key cooperation or pin cooperation.
6. a kind of torsion sensor of built-in motor according to claim 2 or 5, which is characterized in that the first of the axis
Matching for the second connecting portion of interconnecting piece and axle sleeve is combined into interference fit or zero cooperation.
7. a kind of torsion sensor of built-in motor according to claim 3, which is characterized in that the third of the axle sleeve connects
4th interconnecting piece of socket part and the connector is that spline fitted, key cooperation or pin cooperate.
8. a kind of torsion sensor of built-in motor according to claim 3 or 7, which is characterized in that the of the axle sleeve
Matching for 4th interconnecting piece of three interconnecting pieces and the connector is combined into interference fit or zero cooperation.
9. a kind of torsion sensor of built-in motor according to claim 1, which is characterized in that institute's axle sleeve is additionally provided with cunning
Ring, slip ring are socketed on axis, and the other end of slip ring is connect with sensing elements.
10. a kind of torsion sensor of built-in motor according to claim 1, which is characterized in that the connector is also set
It is equipped with the 5th interconnecting piece, the connector connect with isolator and exports outward by the 5th interconnecting piece, and the isolator is single
To bearing, roller bearing or ratchet, the 5th interconnecting piece can be fixedly connected with isolator or the 5th interconnecting piece can be directly as
Constitute a part of isolator.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910631787.4A CN110220620A (en) | 2019-07-12 | 2019-07-12 | A kind of torsion sensor of built-in motor |
| PCT/CN2020/095641 WO2021008281A1 (en) | 2019-07-12 | 2020-06-11 | Torque sensor of central motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910631787.4A CN110220620A (en) | 2019-07-12 | 2019-07-12 | A kind of torsion sensor of built-in motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110220620A true CN110220620A (en) | 2019-09-10 |
Family
ID=67812465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910631787.4A Pending CN110220620A (en) | 2019-07-12 | 2019-07-12 | A kind of torsion sensor of built-in motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110220620A (en) |
| WO (1) | WO2021008281A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021008281A1 (en) * | 2019-07-12 | 2021-01-21 | 太仓市悦博电动科技有限公司 | Torque sensor of central motor |
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| CN203020503U (en) * | 2012-12-31 | 2013-06-26 | 中华汽车工业股份有限公司 | Torsion sensing device of electronic bicycle |
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| CN104724244A (en) * | 2014-10-31 | 2015-06-24 | 太仓市悦博电动科技有限公司 | Built-in-motor electric-bicycle middle axle force moment sensing system |
| CN108163128A (en) * | 2018-02-27 | 2018-06-15 | 宋文平 | A kind of bilateral chain wheel axle torsion sensor of moped based on counter magnetostriction effect |
| CN108791681A (en) * | 2017-05-05 | 2018-11-13 | 捷安特电动车（昆山）有限公司 | A kind of device measuring axis double-side torque, position angle, rotating speed and power |
| CN210123317U (en) * | 2019-07-12 | 2020-03-03 | 太仓市悦博电动科技有限公司 | Torsion sensor of middle-placed motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2374854Y (en) * | 1999-03-22 | 2000-04-19 | 中国轻骑集团有限公司 | Pedal moment testing device for electric cycle |
| CN102297736B (en) * | 2010-06-22 | 2013-12-04 | 宇泉能源科技股份有限公司 | Crank torsion sensing device |
| WO2013030089A1 (en) * | 2011-08-27 | 2013-03-07 | Schaeffler Technologies AG & Co. KG | Bottom bracket |
| CN103879506B (en) * | 2014-02-11 | 2016-01-20 | 苏州工业园区同盛车业有限公司 | Electrical bicycle middle shaft moment sensor |
| CN103879505B (en) * | 2014-02-11 | 2016-04-20 | 苏州工业园区同盛车业有限公司 | Electric bicycle motor |
| CN110220620A (en) * | 2019-07-12 | 2019-09-10 | 太仓市悦博电动科技有限公司 | A kind of torsion sensor of built-in motor |
-
2019
- 2019-07-12 CN CN201910631787.4A patent/CN110220620A/en active Pending
-
2020
- 2020-06-11 WO PCT/CN2020/095641 patent/WO2021008281A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203020503U (en) * | 2012-12-31 | 2013-06-26 | 中华汽车工业股份有限公司 | Torsion sensing device of electronic bicycle |
| CN104369832A (en) * | 2014-10-31 | 2015-02-25 | 太仓市荣驰电机有限公司 | Conductive sliding ring used for electric bicycle and assisting power control method for electric bicycle provided with conductive sliding ring |
| CN104724244A (en) * | 2014-10-31 | 2015-06-24 | 太仓市悦博电动科技有限公司 | Built-in-motor electric-bicycle middle axle force moment sensing system |
| CN108791681A (en) * | 2017-05-05 | 2018-11-13 | 捷安特电动车（昆山）有限公司 | A kind of device measuring axis double-side torque, position angle, rotating speed and power |
| CN108163128A (en) * | 2018-02-27 | 2018-06-15 | 宋文平 | A kind of bilateral chain wheel axle torsion sensor of moped based on counter magnetostriction effect |
| CN210123317U (en) * | 2019-07-12 | 2020-03-03 | 太仓市悦博电动科技有限公司 | Torsion sensor of middle-placed motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021008281A1 (en) * | 2019-07-12 | 2021-01-21 | 太仓市悦博电动科技有限公司 | Torque sensor of central motor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021008281A1 (en) | 2021-01-21 |
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