CN102803913B - Torque sensor - Google Patents
Torque sensor Download PDFInfo
- Publication number
- CN102803913B CN102803913B CN200980159788.8A CN200980159788A CN102803913B CN 102803913 B CN102803913 B CN 102803913B CN 200980159788 A CN200980159788 A CN 200980159788A CN 102803913 B CN102803913 B CN 102803913B
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- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000007935 neutral effect Effects 0.000 claims description 60
- 238000005452 bending Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 230000002153 concerted effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/14—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/14—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft
- G01L3/1464—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving screws and nuts, screw-gears or cams
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- General Physics & Mathematics (AREA)
- Retarders (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A torque sensor capable of highly accurately detecting low torque. A torque sensor (1) is provided with an input shaft (4) rotating when driven by a drive source, an output shaft (8) rotating as the input shaft (4) is rotationally driven, a rotation transmitting means (7) capable of transmitting rotation and drive of the input shaft (4) to the output shaft (8), a deforming body (2) for rotationally supporting the rotation transmitting means (7) and deforming according to rotational resistance of the output shaft (8) which resistance acts on the deforming body (2) through the rotation transmitting means (7), and strain detecting means (16, 17, 18, 19) for detecting strain or deformation of the deforming body (2). When rotational resistance of the output shaft (8) acts on the rotation transmitting means (7), the deforming body (2) deforms. Detection of the deformation of the deforming body (2) by the strain detecting means (16, 17, 18, 19) allows detection of torque. In addition, because the toque sensor does not require a planetary gear mechanism, output torque is not amplified, so that rotational resistance is not increased. Accordingly, low torque can be detected.
Description
Technical field
The present invention relates to detect accurately the torque sensor of low torque.
Background technology
In the past, as being configured to deformable body because the rotational resistance acting on gear produces the torque sensor of strain, there is the torque sensor shown in patent documentation 1.This torque sensor is configured to, and has the planetary gears between input shaft and output shaft, and the rotary actuation of the input shaft of following the driving of motor and rotate is passed to output shaft by this planetary gears.This planetary gears comprises: be arranged on the central gear on above-mentioned input shaft; Engage with this central gear and revolution around it, and multiple planet wheels of rotation; And annular wheel, this annular wheel in the form of a ring, possesses internal tooth in inner side, and by engaging and with inner ring side, planet wheel is guided with this planet wheel.In addition, planet wheel is supported on bracket with axle, and above-mentioned output shaft is installed on this bracket.In addition, the deformable body of having pasted strain measurement part in side is installed in the outer ring of above-mentioned annular wheel side, this deformable body other end is fixed on housing.By this structure, in the time that rotational resistance acts on output shaft, this rotational resistance acts on annular wheel along the circumferencial direction of annular wheel, and bending moment acts on deformable body.Deformable body, because this bending moment produces strain, detects this distortion by distorting measuring piece, can detect torque.
Prior art document
Patent documentation 1: No. 3659748 communique of Jap.P.
In above-mentioned torque sensor, planetary gears is necessary structure important document.But by the decelerating effect of planetary gears, output torque is amplified, the rotational resistance acting on output shaft also increases thereupon.Therefore the bending moment that, passes to deformable body by annular wheel also increases.Therefore, the torque that can detect is limited to the torque larger than input torque, cannot detect low torque.And, act on the inertia of the motor on output shaft by square increase of moderating ratio.Therefore,, in the torque sensor that possesses planetary gears, the inertia that acts on the motor on output shaft increases.Therefore, the impact torque of output shaft increases, and has variety of issues such as producing noise, vibration.
Summary of the invention
Torque sensor of the present invention completes in view of above-mentioned problem, it is characterized in that possessing: follow the driving of drive source and the input shaft that rotates; The output shaft of following the rotary actuation of this input shaft and rotate; The rotary actuation of this input shaft can be passed to the rotary transfer machine of output shaft; Deformable body, this rotary transfer machine is supported in this deformable body rotation freely, and because the rotational resistance of the output shaft by this rotary transfer machine effect produces strain; And for detection of the strain detecting mechanism of the strain of this deformable body.
In addition, above-mentioned rotary transfer machine is neutral gear, on above-mentioned input shaft can with one of ground input gear is installed rotatably, and output gear also can be integrally rotatably installed with it on above-mentioned output shaft, neutral gear is engaged and can be by the rotary actuation of input shaft to output shaft transmission with these input gears and output gear, and neutral gear rotation is supported on above-mentioned deformable body freely.
In addition, above-mentioned rotary transfer machine is intermediate chain wheel, on above-mentioned input shaft, input sprocket can be integrally rotatably installed with it, output chain gear also can be integrally rotatably installed with it on above-mentioned output shaft, chain roll is hung on these sprocket wheels and can be by the rotary actuation of input shaft to output shaft transmission, and intermediate chain wheel rotation is supported on above-mentioned deformable body freely, and this intermediate chain wheel is engaged with this chain.
In addition, on above-mentioned deformable body, be equipped with the cavity bore of Luo Baiwaer (roberval) type.
In addition, in the cavity bore of above-mentioned deformable body, configure input gear or input sprocket, and form the notch being communicated with cavity bore on this deformable body, in this notch, configure above-mentioned neutral gear or intermediate chain wheel.
Effect of the present invention is as follows.
In torque sensor of the present invention, rotary transfer machine rotation is supported on deformable body freely.Therefore, in the time that rotational resistance acts on output shaft, rotary transfer machine and this rotational resistance correspondingly move to the direction of the side that pushes deformable body, and bending moment acts on deformable body.By this structure, this deformable body produces strain, utilizes testing agency to detect this strain and can detect torque.And by making the structure that does not need planetary gears, because output torque can not be amplified, thereby rotational resistance also can not increase, and therefore can detect low torque.
Brief description of the drawings
Fig. 1 is the figure that represents the structure of the torque sensor of the first embodiment.
Fig. 2 is the elevational cross-sectional view of the torque sensor of the first embodiment.
Fig. 3 be the first embodiment torque sensor overlook major part amplification view.
Fig. 4 is the figure that represents the structure of the torque sensor of the second embodiment.
Fig. 5 is that the master of the torque sensor of the second embodiment looks cut-open view.
Fig. 6 be the second embodiment torque sensor overlook major part amplification view, Fig. 6 (a) represents the engagement of input gear and the first neutral gear, the engagement of Fig. 6 (b) expression the second neutral gear and output gear.
Fig. 7 is the vertical view cutaway drawing of the torque sensor of the 3rd embodiment.
Fig. 8 is that the master of the torque sensor of the 4th embodiment looks cut-open view.
Embodiment
The first embodiment
According to Fig. 1 to Fig. 3, the first embodiment of the present invention is described below.
In Fig. 1 and Fig. 2, label 1 is torque sensor, has the deformable body (straining body) 2 of the cavity bore 2a that is formed with Luo Baiwaer (ロ バ mono-バ Le) type.This deformable body 2 is contained in the housing 3 being made up of upper cover 3a and lower cover 3b.The upper surface of this deformable body 2 is covered by upper cover 3a, and the lower surface of this deformable body 2 is covered by lower cover 3b on the other hand.In addition, be formed with stiff end 2b in one end of this deformable body 2, utilize screw S to be fixed on lower cover 3b.In addition, as shown in Figure 1, on this stiff end 2b, be equipped with the patchhole 2f that can allow pin (not shown) insert, and on upper cover 3a, be also equipped with the patchhole (not shown) that can allow this pin insert.And, by pin being inserted to these patchholes 2f, deformable body 2 is fixed with upper cover 3a.And, this deformable body 2 is configured to, and except its stiff end 2b, is also provided with predetermined gap to be contained in above-mentioned housing 3 with respect to the inside surface of above-mentioned housing 3, in order to avoid in the time that the rotational resistance of the output shaft 8 owing to hereinafter describing in detail produces strain, contact with the inside surface of this housing 3.
In addition, above-mentioned torque sensor 1 has the input gear 5 of the inside of the cavity bore 2a that is configured in above-mentioned deformable body 2, and this input gear 5 can integrally rotatably be arranged on input shaft 4 with input shaft 4.This input shaft 4 is followed as the driving of the motor (not shown) of an example of drive source and is rotated, and its two ends remain on the upper cover 3a and lower cover 3b of housing 3 freely by bearing 10,11 rotations.
In addition, on above-mentioned deformable body 2, be formed with the notch 2c that cuts its other end and be communicated with above-mentioned cavity bore 2a, in this notch 2c, dispose the neutral gear 7 engaging with above-mentioned input gear 5.As shown in Figure 2, this neutral gear 7 is configured to, can with rotate by bearing 12,13 intermediate shaft 6 remaining on freely on above-mentioned deformable body 2 and be integrally rotatably arranged on intermediate shaft 6, follow the rotary actuation of above-mentioned input shaft 4 and rotate.In addition, on this intermediate shaft 6, upper cover 3a and the lower cover 3b of housing 3 given prominence to and extends at its two ends from the notch 2c of deformable body 2.Therefore, on the upper cover 3a of this housing 3 and lower cover 3b, be equipped with diameter than the diameter of this intermediate shaft 6 large have bottom outlet 3c, a 3d, in order to avoid due to the rotational resistance of the output shaft 8 hereinafter describing in detail, in the time that this intermediate shaft 6 moves integratedly with deformable body 2, contact with housing 3.
And, in the inside of above-mentioned housing 3, have output gear 9 in the position configuration engaging with above-mentioned neutral gear 7.This output gear 9 is configured to, and can integrally rotatably be arranged on output shaft 8 with the output shaft 8 remaining on freely by bearing 14,15 rotation on upper cover 3a and the lower cover 3b of above-mentioned housing 3, follows the rotary actuation of above-mentioned input shaft 4 and rotates.,, in torque sensor 1, above-mentioned input shaft 4 departs from center configuration with output shaft 8, and the rotary actuation of input shaft 4 is delivered to output shaft 8 by above-mentioned neutral gear 7.At this, above-mentioned input gear 5, neutral gear 7 and output gear 9 are teeth directional spur gears parallel with turning axle, by these gears are changed to the gear that the number of teeth is different, the rotary actuation that is output to output shaft 8 can be set rotary actuation speedup or the deceleration with respect to input shaft 4 freely.In addition, in torque sensor 1, be configured to, the number of teeth of input gear 5 and output gear 9 is identical, can not increase and decrease speed.
On above-mentioned deformable body 2, be pasted with the strain measurement part 16,17,18,19 as an example of strain detecting mechanism, on the side of extending along its length, paste respectively two.
The effect of the torque sensor 1 of the first embodiment then, is described according to Fig. 3.First,, when following the driving of motor, when input shaft 4 rotates with torque T1, input gear 5 is rotation integratedly with it also.Then, accept the rotation of this input gear 5, neutral gear 7 rotates integratedly with intermediate shaft 6.Then, accept the rotation of this neutral gear 7, output gear 9 also rotates integratedly with output shaft 8.
At this, in the time that rotational resistance T2 is applied on output shaft 8, this rotational resistance T2 transmits to engagement neutral gear 7 from output gear 9.Thus, the flank of tooth of the neutral gear 7 engaging with output gear 9 is pushed by this output gear 9, and pushing force F1 acts in the direction orthogonal with this flank of tooth.On the other hand, the flank of tooth of the neutral gear 7 engaging with input gear 5 is pushed by this input gear 5, and pushing force F2 acts in the direction orthogonal with this flank of tooth.Therefore, the F1+F2 that makes a concerted effort of pushing force F1 and pushing force F2 acts on neutral gear 7, and the F1+F2 that makes a concerted effort also acts on the intermediate shaft 6 that keeps this neutral gear 7.
In addition, the central point of above-mentioned input gear 5, neutral gear 7 and output gear 9 be configured in the length direction parallel sided of deformable body 2 on the line of the straight line L that extends, above-mentioned neutral gear 7 is also positioned on the line of this straight line L with the meshing point of output gear 9 and the meshing point of neutral gear 7 and input gear 5., the application point of pushing force F1 and pushing force F2 is positioned on the line of this straight line L.And neutral gear 7 is configured to, the active line of pushing force F1 equates with this straight line L angulation with the active line of this straight line L angulation and pushing force F2.Therefore, F1+F2 acts in the direction orthogonal with the length direction side of deformable body 2 with joint efforts.Therefore, the F1+F2 that makes a concerted effort acts on deformable body 2 as bending moment, and this deformable body 2 is taking stiff end 2b as fulcrum strain.By utilizing strain measurement part 16,17,18,19 to detect the strain of this deformable body 2, thereby can detect torque.
In the torque sensor 1 of above-mentioned the first embodiment, the existing torque sensor of the amplification output torque of having to from having planetary gears is different, and because output torque can not be amplified, therefore rotational resistance also can not increase.Therefore,, owing to acting on deformable body 2 with the corresponding rotational resistance of torque of not exporting enlargedly, therefore can detect low torque.And, be configured to F1+F2 with joint efforts and act in the direction orthogonal with the length direction side of deformable body 2.Therefore,, even little bending moment also can make deformable body 2 strains, therefore can detect accurately low torque.In addition, be a gear mechanism that is row by three gear arrangement, compared with possessing the torque sensor of planetary gears, can reduce parts number of packages.In addition, because input gear 5 and output gear 9 are configured to be built in deformable body 2, therefore can make torque sensor 1 miniaturization.
The second embodiment
According to Fig. 4 to Fig. 6, the second embodiment of the present invention is described below.At this, the torque sensor 21 of the second embodiment longitudinally configures the deformable body 2 of the torque sensor 1 of the first above-mentioned embodiment, and the configuration of the various structure members of corresponding change.
As shown in Figures 4 and 5, above-mentioned torque sensor 21 has the deformable body 22 of the cavity bore 22a that is formed with Luo Baiwaer type, and the mode that this deformable body 22 extends with its edge, length direction side and the same direction of intermediate shaft 26 hereinafter describing in detail configures.In addition, be formed with stiff end 22b in the upper end of this deformable body 22, thereby be fixed on housing 23.
In addition, torque sensor 21 has to follow as the driving of the motor (not shown) of an example of drive source and rotates, and along the input shaft 24 extending with the same direction in length direction side of deformable body 22.The input gear 25 that can rotate integratedly is with it installed on this input shaft 24.
Dispose the first neutral gear 27a engaging with above-mentioned input gear 25 in the upper end of above-mentioned deformable body 22, and dispose the second neutral gear 27b in lower end.These neutral gears 27a, 27b are configured to, can with connect upper end and the lower end of deformable body 22, and rotate by bearing 30,31 intermediate shaft 26 remaining on freely on this deformable body 22 and be integrally rotatably arranged on intermediate shaft 26, follow the rotary actuation of above-mentioned input shaft 24 and rotate.
In addition, output gear 29 engages with above-mentioned the second neutral gear 27b.This output gear 29 is configured to, can with rotate by bearing 32,33 output shaft 28 remaining on freely on housing 23 and be integrally rotatably arranged on output shaft 28, follow the rotary actuation of above-mentioned input shaft 24 and rotate.By this structure, the rotary actuation of above-mentioned input shaft 24 outputs to output shaft 28 by the first neutral gear 27a and the second neutral gear 27b.At this, these input gears 25, the first neutral gear 27a, the second neutral gear 27b and output gear 29 are teeth directional spur gears parallel with turning axle, by these gears are changed into the gear that the number of teeth is different, the rotary actuation outputing on output shaft 28 can be set rotary actuation speedup or the deceleration with respect to input shaft 24 freely.In addition, in torque sensor 21, be configured to, the number of teeth of input gear 25 and output gear 29 is identical, can not increase and decrease speed.
As shown in Figures 4 and 5, on above-mentioned deformable body 22, be pasted with the strain measurement part 34,35,36,37 as an example of strain detecting mechanism, paste respectively two in the side of extending along its length.
The effect of the torque sensor 21 of the second embodiment then, is described according to Fig. 6 (a), Fig. 6 (b).First, as shown in Fig. 6 (a), follow the driving of motor, input shaft 24 is with torque T1 forward, and input gear 25 is rotation integratedly with it also.Then, accept the rotation of this input gear 25, the first neutral gear 27a and the second neutral gear 27b and intermediate shaft 26 rotate integratedly.In addition, as shown in Fig. 6 (b), accept the rotation of this second neutral gear 27b, output gear 29 also rotates integratedly with output shaft 28.
At this, as shown in Fig. 6 (b), in the time that rotational resistance T2 is applied on output shaft 28, this rotational resistance T2 from output gear 29 to the first neutral gear 27a and the second neutral gear 27b transmit.Now, the flank of tooth of the second neutral gear 27b engaging with output gear 29 is pushed by this output gear 29, and pushing force F1 acts in the direction orthogonal with this flank of tooth.On the other hand, as shown in Fig. 6 (a), the flank of tooth of the first neutral gear 27a engaging with input gear 25 is pushed by this input gear 25, and pushing force F2 acts in the direction orthogonal with this flank of tooth.Therefore, the F1+F2 that makes a concerted effort of pushing force F1 and pushing force F2 acts on the intermediate shaft 26 that keeps the first neutral gear 27a and the second neutral gear 27b.
In addition, the central point of above-mentioned input gear 25 and the first neutral gear 27a and the second neutral gear 27b and the central point of output gear 29 are configured on the line of the straight line L parallel with the Width of the length direction side of deformable body 22.Therefore, the meshing point of above-mentioned the second neutral gear 27b and output gear 29 and the meshing point of the first neutral gear 27a and input gear 25 are also positioned on the line of this straight line L., the application point of pushing force F1 and pushing force F2 is positioned on the line of this straight line L.And these the first neutral gear 27a and the second neutral gear 27b are configured to, the acute angle that the active line of pushing force F1 becomes with this straight line and the active line of pushing force F2 equate with the acute angle that this straight line L becomes.Therefore, F1+F2 acts in the direction orthogonal with the length direction side of deformable body 22 with joint efforts.Therefore, the F1+F2 that makes a concerted effort acts on deformable body 22 as bending moment, and this deformable body 22 is taking stiff end 22b as fulcrum strain.By utilizing strain measurement part 34,35,36,37 to detect the strain of this deformable body 22, thereby can detect torque.
The 3rd embodiment
According to Fig. 7, the 3rd embodiment of the present invention is described below.At this, the torque sensor 41 of the 3rd embodiment be replace in the torque sensor 1 of the first embodiment use input gear 5, neutral gear 7 and output gear 9 and use sprocket wheel 45,47,49.
In Fig. 7, label 41 is torque sensors, on input shaft 44, can sprocket wheel 45 be integrally rotatably installed with input shaft 44.On the other hand, output chain gear 49 also can be integrally rotatably installed with it on output shaft 48.On these sprocket wheels 45,49, volume hangs with chain 50, is configured to and the rotary actuation of input shaft 44 can be transmitted to output shaft 48.In addition, dispose and can integrally rotatably be arranged on the intermediate chain wheel 47 on intermediate shaft 46 with intermediate shaft 46 in the outer ring of above-mentioned chain 50 side, engage in the mode that guides this chain 50.
In the torque sensor 41 of the 3rd embodiment, as shown in Figure 7, when following the driving of motor, when input shaft 44 rotates with torque T1, input sprocket 45 is rotation integratedly with it also.Accept this rotation, chain 50 loopy movings, and output chain gear 49 is driven.Now, the intermediate chain wheel 47 that is configured in the outer ring side of chain 50 is also followed the loopy moving of chain 50 and rotates.At this, in the time that output shaft 48 is applied to rotational resistance T2, this rotational resistance passes to intermediate chain wheel 47 by chain 50.Now, pushing force F1 acts on the flank of tooth of intermediate chain wheel 47.In addition, this retroaction acts on another flank of tooth of intermediate chain wheel 47 by chain 50, and pushing force F2 acts on this flank of tooth.Therefore, the F1+F2 that makes a concerted effort of pushing force F1 and F2 acts on the intermediate shaft 46 that keeps intermediate chain wheel 47.Therefore, the F1+F2 that makes a concerted effort acts on deformable body 2 as bending moment, and this deformable body 2 is taking stiff end as fulcrum strain.By utilizing strain measurement part 16,17,18,19 to detect the strain of this deformable body 2, thereby can detect torque.
The 4th embodiment
In the torque sensor 1,21,41 of first, second and third above-mentioned embodiment, neutral gear 7,27a, 27b or intermediate chain wheel 47 can integrally rotatably be arranged on intermediate shaft 6,26 with the intermediate shaft 6,26 remaining on freely by bearing rotary on deformable body 2,22.At this, in the torque sensor 81 of the 4th embodiment, as shown in Figure 8, intermediate shaft 86 is fixed on deformable body 2, and with this, neutral gear 87 is arranged on this intermediate shaft 86 freely by bearing 88,89 rotations.Even so form, also can obtain the effect identical with the torque sensor 1 of the first embodiment.
In addition, in the torque sensor 1,21 of first and second embodiment, also can be configured to, omit input shaft 4,24 and input gear 5,25 and utilize motor directly to drive intermediate shaft 6 or intermediate shaft 26.In this occasion, the pushing force F2 shown in Fig. 3 and Fig. 6 does not act on intermediate shaft 6,26, but pushing force F1 works as bending moment.Therefore,, because deformable body 2,22 produces strain, therefore can detect torque by this strain detecting.
Symbol description
1-torque sensor, 2-deformable body, 2a-cavity bore, 2b-stiff end, 2c-notch, 2d-upper shaft installation portion, 2e-lower shaft installation portion, 2f-pin insertion hole, 3-housing, 3a-upper cover, 3b-lower cover, 3c-has bottom outlet, and 3d-has bottom outlet, 4-input shaft, 5-input gear, 6-intermediate shaft, 7-neutral gear, 8-output shaft, 9-output gear, 10, 11, 12, 13, 14, 15-bearing, 16, 17, 18, 19-strain measurement part, 21-torque sensor, 22-deformable body, 22a-cavity bore, 22b-stiff end, 23-housing, 24-input shaft, 25-input gear, 26-intermediate shaft, 27a-the first neutral gear, 27b-the second neutral gear, 28-output shaft, 29-output gear, 30, 31, 32, 33-bearing, 34, 35, 36, 37-strain measurement part, 41-torque sensor, 44-input shaft, 45-input sprocket, 46-intermediate shaft, 47-intermediate chain wheel, 48-output shaft, 49-output chain gear, 50-chain, 81-torque sensor, 86-intermediate shaft, 87-neutral gear, 88, 89-bearing.
Claims (4)
1. a torque sensor, is characterized in that, possesses:
The input gear of following the rotation of input shaft and rotate;
Transmit the rotation of this input gear, and to be positioned at output shaft on the axis different from the above-mentioned input shaft output gear as turning axle;
Engage and transmit one or more neutral gears of rotation with these input gears and output gear;
Deformable body, this deformable body wears cavity bore and is Luo Baiwaer type on single part, and supports the turning axle of above-mentioned neutral gear; And
Stick on the side of this deformable body, the strain detecting mechanism of the strain producing for detection of deformable body.
2. a torque sensor, is characterized in that, possesses:
The input gear of following the rotation of input shaft and rotate;
Transmit the output gear of the output shaft side of the rotation of this input gear;
Engage and transmit one or more neutral gears of rotation with these input gears and output gear;
Deformable body, this deformable body wears cavity bore and is Luo Baiwaer type on single part, and only supports the turning axle of above-mentioned neutral gear; And
Stick on the side of this deformable body, the strain detecting mechanism of the strain producing for detection of deformable body.
3. torque sensor according to claim 1 and 2, is characterized in that,
On above-mentioned deformable body, form the notch being communicated with cavity bore, in this notch, configure above-mentioned neutral gear.
4. torque sensor according to claim 1 and 2, is characterized in that,
Above-mentioned neutral gear is made up of the first neutral gear and the second neutral gear, on the other hand, above-mentioned deformable body is longitudinally being configured to along the direction extension identical with input shaft and output shaft, the mode that turning axle connects this deformable body with its top and bottom is supported on this deformable body, the first neutral gear be installed in the upper end of this turning axle and engaged with above-mentioned input gear, and the second neutral gear be installed in the lower end of this turning axle and engaged with above-mentioned output gear.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2009/060613 WO2010143285A1 (en) | 2009-06-10 | 2009-06-10 | Torque sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102803913A CN102803913A (en) | 2012-11-28 |
| CN102803913B true CN102803913B (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980159788.8A Expired - Fee Related CN102803913B (en) | 2009-06-10 | 2009-06-10 | Torque sensor |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4677043B2 (en) |
| KR (1) | KR101306639B1 (en) |
| CN (1) | CN102803913B (en) |
| SG (1) | SG176279A1 (en) |
| WO (1) | WO2010143285A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20130096823A (en) | 2012-02-23 | 2013-09-02 | 엘지전자 주식회사 | Solar cell module |
| DE102015201577A1 (en) | 2015-01-29 | 2016-08-04 | Robert Bosch Gmbh | Sensor arrangement for the indirect detection of a torque of a rotatably mounted shaft |
| TW201723448A (en) * | 2015-12-23 | 2017-07-01 | Prodrives & Motions Co Ltd | Axial rotation torque sensor allows one end of the elastic piece to sensitively produce bending and deformation under state of force received |
| TWI640756B (en) * | 2016-11-30 | 2018-11-11 | 健騰精密機電股份有限公司 | Axial rotation type torque sensor |
| WO2024134789A1 (en) * | 2022-12-20 | 2024-06-27 | ミネベアミツミ株式会社 | Sensor device |
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| JP3581179B2 (en) * | 1994-10-18 | 2004-10-27 | 大和製衡株式会社 | Mass or weight measuring device |
| JP3659748B2 (en) * | 1996-08-26 | 2005-06-15 | 日本電産シンポ株式会社 | Load torque detection device for planetary gear type transmission |
| JP3072481B2 (en) * | 1998-05-25 | 2000-07-31 | 本田技研工業株式会社 | Bicycle with drive assist device |
| JP4092459B2 (en) * | 2002-04-16 | 2008-05-28 | ティアック株式会社 | Torque detection device |
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2009
- 2009-06-10 CN CN200980159788.8A patent/CN102803913B/en not_active Expired - Fee Related
- 2009-06-10 KR KR1020117027495A patent/KR101306639B1/en not_active Expired - Fee Related
- 2009-06-10 SG SG2011088051A patent/SG176279A1/en unknown
- 2009-06-10 WO PCT/JP2009/060613 patent/WO2010143285A1/en active Application Filing
- 2009-06-10 JP JP2009529335A patent/JP4677043B2/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337569A (en) * | 2000-08-09 | 2002-02-27 | 株式会社百利达 | Balance with load sensing device having stopper mechanism |
| CN1401973A (en) * | 2001-08-29 | 2003-03-12 | 株式会社岛津制作所 | Electronic balance |
| CN1806161A (en) * | 2003-06-17 | 2006-07-19 | 旋转动力公司 | Transmission system, and method for measuring a drive force therein |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2010143285A1 (en) | 2010-12-16 |
| SG176279A1 (en) | 2012-01-30 |
| CN102803913A (en) | 2012-11-28 |
| JPWO2010143285A1 (en) | 2012-11-22 |
| KR101306639B1 (en) | 2013-09-10 |
| JP4677043B2 (en) | 2011-04-27 |
| KR20120018330A (en) | 2012-03-02 |
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