CN203544280U - Center shaft type torque sensor - Google Patents
Center shaft type torque sensor Download PDFInfo
- Publication number
- CN203544280U CN203544280U CN201320483272.2U CN201320483272U CN203544280U CN 203544280 U CN203544280 U CN 203544280U CN 201320483272 U CN201320483272 U CN 201320483272U CN 203544280 U CN203544280 U CN 203544280U
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- China
- Prior art keywords
- axis
- elastic connector
- flange
- torque sensor
- center shaft
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a center shaft type torque sensor which comprises a tooth disk, a center shaft, cranks, a left pedal component, a right pedal component, an elastic connector, a shaft sleeve, a left end cover and a flange. The cranks are arranged at two ends of the center shaft, the elastic connector is sleeved on the center shaft, the shaft sleeve is sleeved on the elastic connector, the left end cover is sleeved on the left side of the center shaft and matched with the shaft sleeve, the flange is sleeved on the right side of the center shaft and rotatably matched with the center shaft, the left end of the elastic connector is fixedly connected with the center shaft, the right end of the elastic connector is fixedly matched with the flange, the tooth disk is fixedly matched with the flange, magnetic rings are sleeved at two ends of a deformation position of the elastic connector respectively, and one side of the shaft sleeve is provided with two groups of Hall elements opposite to the two magnetic rings. When the left pedal component and/or the right pedal component applies stress, the center shaft rotates, the elastic connector is stressed to twist and then drives the flange and the tooth disk to generate angular displacement relative to the center shaft, the two groups of Hall elements detect torque signals of foot steps through signals of the angular difference between the two magnetic rings after the elastic connector deforms, so that the output power of a motor is controlled, and corresponding assisting power is provided.
Description
Technical field
the utility model relates to a kind of central-axis type torque sensor.
Background technology
it is American-European and Japanese the most popular at present a kind of vehicle that pin is stepped on assistance type Electrical Bicycle, this car only when people's pin is stepped on, detects that people's pin is stepped on the size of moment and corresponding drive motor is afterburning, the mode that gathers moment has a variety of, wherein torque sensor being placed in to axis (B.B.PART) is the popular mode in current Europe, its advantage is the little good concealment highly versatile of volume, owing to being the standard form parts of bicycle, be therefore conducive to batch manufacturing.The world-renowned bearing of the FAG(maker of current Germany), THUN company has all released the torque sensor of central-axis type, the assistance type Electrical Bicycle of releasing after doctor (BOCHS) company is improved has had the market share in Europe 25%, but they have the monolateral force mode that adds of output by current product when mainly still left foot is trampled, according to left foot, step on to such an extent that signal is simulated right crus of diaphragm reinforcing.
Summary of the invention
the utility model object is: provide a kind of simple in structure, can the afterburning central-axis type torque sensor of both feet.
the technical solution of the utility model is: a kind of central-axis type torque sensor, comprise fluted disc, two cranks and axis, described torque sensor also comprises the elastic connector being sheathed on axis, be sheathed on elastic connector and can with axis and elastic connector axle sleeve in relative rotation, the left end cap that is sheathed on axis left side and is fixed with axle sleeve, and be sheathed on axis right side and with the flange of axis normal-running fit, the left end of described elastic connector is fixedly connected with axis, right-hand member and the flange of described elastic connector are fixed, the centre hole of described fluted disc and the outer ring of this flange are fixed, described two cranks are installed on respectively the two ends of axis and are connected with accordingly a left side, right step assembly, the two ends of described elastic connector deformation place are arranged with respectively magnet ring, described axle sleeve one side has a left side, right two groups of Hall elements relative with two magnet rings, when having condition of loading bottom left and/or right step assembly afterburning, axis rotates, elastic connector is stressed drives after being distorted flange and the relative axis of fluted disc to produce angular transposition, two groups of Hall elements are out of shape the size of differential seat angle signal between rear two magnet rings by elastic connector simultaneously, the torque signals that people's pin is stepped on detected, to control the horsepower output of motor, corresponding power-assisted is provided.
the concrete structure of described elastic connector is: described elastic connector comprises resilient deformation section and is located at a resilient deformation section left side, the left canned paragraph of right both sides and right canned paragraph, in described resilient deformation section, there is at least one H type groove, described H type groove has two deep-slotted chip breakers that circumferentially extend and is communicated in the axial groove between two deep-slotted chip breakers, the circumferential lengths of above-mentioned deep-slotted chip breaker is less than the periphery length of resilient deformation section, described two magnet rings are sheathed on respectively a left side, right canned paragraph is near the position of resilient deformation section, socket connection pin between the adjustment hole in described right canned paragraph left side and the pin-and-hole of axis, described connecting pin can be in adjustment hole circumferential movement, aperture by adjustment hole reaches rotary stopper object.The preferred technical scheme of the utility model is, described resilient deformation section has two or more H type grooves that axially staggers and circumferentially stagger, and in described H type groove, the outer end of at least one deep-slotted chip breaker is stretched between two deep-slotted chip breakers of adjacent H type groove.
further, between described axle sleeve left side and axis, be respectively equipped with clutch shaft bearing and the second bearing between axle sleeve right side and the right canned paragraph of elastic connector, between the right side of described right canned paragraph, flange and axis, be provided with the 3rd bearing.The setting of above-mentioned clutch shaft bearing and the second bearing, make axle sleeve under motionless state, axis, elastic connector right side can be rotated relative to axle sleeve, and the setting of the 3rd bearing, have realized between elastic connector right side and axis, relatively rotating between flange and axis.
concrete connection mode between the right-hand member of described elastic connector and flange is: the circumferential interval of right-hand member of described right canned paragraph is furnished with several draw-in grooves, described flange endoporus perisporium is provided with several fixture blocks corresponding with draw-in groove, and the right-hand member of right canned paragraph and flange are fixed by the clamping realization of draw-in groove and fixture block.
the left end of described elastic connector with the concrete fixed form between axis is: the left canned paragraph of described elastic connector and axis be by key be connected realize relatively-stationary.In the utility model, above-mentioned key connects preferred spline joint.
the concrete mounting means of described Hall element is: described axle sleeve one side has axially extended opening, is provided with PBC plate in this opening, and described two groups of Hall elements are arranged on this PBC plate.
the utility model has the advantages that:
1. the utility model is simple in structure and can both feet afterburning, when left step assembly and/or the reinforcing of right step assembly, axis rotates, after elastic connector stress deformation, drive flange and fluted disc to rotate, differential seat angle after while two groups of Hall elements are out of shape by elastic connector between two magnet rings detects the torque signals that people's pin is stepped on, to control the horsepower output of motor, provide power-assisted.
. the elastic connector in the utility model, its structure is comparatively novel, compares with parallel slot elastic connector with traditional plug helix elastic connector, has that deformation angle is large, stress relief is even, easy to process, good linearity feature.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is further described:
fig. 1 is cutaway view of the present utility model;
fig. 2 is one of lateral plan of the present utility model; (not drawing axle sleeve)
fig. 3 is the cutaway view of Fig. 2;
fig. 4 is two of lateral plan of the present utility model; (not drawing axle sleeve)
fig. 5 is the cutaway view of Fig. 4;
fig. 6, Fig. 7 are the block diagram of the utility model Elastic adaptor union;
fig. 8 is the lateral plan of flange in the utility model.
wherein: 1 fluted disc; 2 axis; 3 elastic connectors; 31 resilient deformation section; 32 right canned paragraphs; 321 adjustment holes; 322 draw-in grooves; 33H type groove; 331 deep-slotted chip breakers; 332 axial grooves; 34 left canned paragraphs; 4 axle sleeves; 5 left end caps; 6 flanges; 61 fixture blocks; 7 magnet rings; 8 PBC plates; 9 Hall elements; 10 connecting pins; 11 clutch shaft bearings; 12 second bearings; 13 the 3rd bearings.
The specific embodiment
embodiment: as shown in Figures 1 to 8, a kind of central-axis type torque sensor, comprise fluted disc 1, two cranks, axis 2, be sheathed on the elastic connector 3 on axis 2, be sheathed on elastic connector 3 and can with axis 2 and elastic connector 3 axle sleeve 4 in relative rotation, the left end cap 5 that is sheathed on axis 2 left sides and is fixed with axle sleeve 4, and be sheathed on axis 2 right sides and with the flange 6 of axis 2 normal-running fiies, the left end of described elastic connector 3 is fixedly connected with axis 2, the right-hand member of described elastic connector 3 and flange 6 are fixed, the outer ring of the centre hole of described fluted disc 1 and this flange 6 is fixed, described two cranks are installed on respectively the two ends of axis 2 and are connected with accordingly a left side, right step assembly, the two ends of described elastic connector 3 deformation places are arranged with respectively magnet ring 7, described axle sleeve 4 one sides have axially extended opening, in this opening, be provided with PBC plate 8, on PBC plate 8, there is a left side, right two groups of Hall elements 9 relative with two magnet rings 7.
further, elastic connector 3 left sides in the utility model are fixing with axis, are equivalent to input end, and elastic connector 3 right sides are unfixed with axis and are connected fluted disc by flange, are equivalent to mouth.
in the present embodiment, the concrete structure of described elastic connector 3 is: described elastic connector 3 comprises resilient deformation section 31 and is located at resilient deformation section 31 left sides, the left canned paragraph 35 of right both sides and right canned paragraph 32, in described resilient deformation section 31, there are two H type grooves 33 that axially stagger and circumferentially stagger, described H type groove 33 has two deep-slotted chip breakers 331 that circumferentially extend and is communicated in the axial groove 332 between two deep-slotted chip breakers 331, the circumferential lengths of above-mentioned deep-slotted chip breaker 331 is less than the periphery length of resilient deformation section 31, in described H type groove 33, the both ends of a deep-slotted chip breaker 331 are stretched into respectively between two deep-slotted chip breakers 331 of another H type groove 33, described two magnet rings 7 are sheathed on respectively a left side, right canned paragraph 34, 32 positions near resilient deformation section 31, socket connection pin 10 between the adjustment hole 321 in described right canned paragraph 32 left sides and the pin-and-hole of axis 2, described connecting pin 10 can be in the interior circumferential movement of adjustment hole 321.The setting of this connecting pin 10, has not only played position-limiting action, and has avoided elastic connector 3 excessive distortion and explosion occurs.The structure of above-mentioned elastic connector 3 is comparatively novel, compares with parallel slot elastic connector with traditional plug helix elastic connector, has that deformation angle is large, stress relief is even, easy to process, good linearity feature.
concrete connection mode between the right-hand member of described elastic connector 3 and flange 6 is: the circumferential interval of right-hand member of described right canned paragraph 32 is furnished with several draw-in grooves 322, described flange 6 endoporus perisporiums are provided with several fixture blocks corresponding with draw-in groove 322 61, and the right-hand member of right canned paragraph 32 and flange 6 are fixed by draw-in groove 322 and the clamping realization of fixture block 61.
the left end of described elastic connector 3 with the concrete fixed form between axis 2 is: the left canned paragraph 34 of described elastic connector 3 and axis 2 be by key be connected realize relatively-stationary.In the present embodiment, above-mentioned key connects preferred spline joint.
between described axle sleeve 4 left sides and axis 2, be respectively equipped with clutch shaft bearing 11 and the second bearing 12 between axle sleeve 4 right sides and the right canned paragraph 32 of elastic connector 3, between the right side of described right canned paragraph 32, flange 6 and axis 2, be provided with the 3rd bearing 13.The setting of above-mentioned clutch shaft bearing 11 and the second bearing 12, make axle sleeve 4 under motionless state, axis 2, elastic connector 3 right sides can be rotated relative to axle sleeve 4, and the setting of the 3rd bearing 13, have realized between elastic connector 3 right sides and axis 2, relatively rotating between flange 6 and axis 2.
principle of work of the present utility model is: when having condition of loading bottom left and/or right step assembly afterburning, axis 2 rotates, elastic connector 3 is stressed drives after being distorted flange 6 and the relative axis of fluted disc 1 to produce angular transposition, two groups of Hall elements 9 are by the size of rear 7 the differential seat angle signals of two magnet rings of elastic connector 3 distortion simultaneously, the torque signals that people's pin is stepped on detected, to control the horsepower output of motor, provide corresponding power-assisted.
the utility model substitutes existing Middle shaft assembly and the torque signals that people's pin is stepped on can be detected, and reaches collection people pin and steps on the power-assisted effect after torque signals.Integral structure is comparatively novel, has the monolateral force mode that adds of output to compare while trampling with traditional left foot, and it can be double-legged afterburning, and practicality is stronger.
below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.In addition to the implementation, the utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, within all dropping on the utility model scope required for protection.
Claims (7)
1. a central-axis type torque sensor, comprise fluted disc (1), two cranks and axis (2), it is characterized in that: described torque sensor also comprises the elastic connector (3) being sheathed on axis (2), be sheathed on elastic connector (3) upper and can with axis (2) and elastic connector (3) axle sleeve (4) in relative rotation, the left end cap (5) that is sheathed on axis (2) left side and is fixed with axle sleeve (4), and be sheathed on axis (2) right side and with the flange (6) of axis (2) normal-running fit, the left end of described elastic connector (3) is fixedly connected with axis (2), the right-hand member of described elastic connector (3) and flange (6) are fixed, the outer ring of the centre hole of described fluted disc (1) and this flange (6) is fixed, described two cranks are installed on respectively the two ends of axis (2) and are connected with accordingly a left side, right step assembly, the two ends of described elastic connector (3) deformation place are arranged with respectively magnet ring (7), described axle sleeve (4) one sides have a left side, right two groups of Hall elements (9) relative with two magnet rings (7), when having condition of loading bottom left and/or right step assembly afterburning, axis (2) rotates, after stressed being distorted of elastic connector (3), drive flange (6) and fluted disc (1) axis generation angular transposition relatively, two groups of Hall elements (9) are by the size of differential seat angle signal between rear two magnet rings (7) of elastic connector (3) distortion simultaneously, the torque signals that people's pin is stepped on detected, to control the horsepower output of motor, corresponding power-assisted is provided.
2. a kind of central-axis type torque sensor according to claim 1, it is characterized in that: described elastic connector (3) comprises resilient deformation section (31) and is located at resilient deformation section (31) left side, the left canned paragraph (34) of right both sides and right canned paragraph (32), in described resilient deformation section (31), there is at least one H type groove (33), described H type groove (33) has two deep-slotted chip breakers (331) that circumferentially extend and is communicated in the axial groove (332) between two deep-slotted chip breakers (331), the circumferential lengths of above-mentioned deep-slotted chip breaker (331) is less than the periphery length of resilient deformation section (31), described two magnet rings (7) are sheathed on respectively a left side, right canned paragraph (34, 32) position of close resilient deformation section (31), socket connection pin (10) between the adjustment hole (321) in described right canned paragraph (32) left side and the pin-and-hole of axis (2), described connecting pin (10) can be in adjustment hole (321) circumferential movement.
3. a kind of central-axis type torque sensor according to claim 2, it is characterized in that: described resilient deformation section (31) has two or more H type grooves (33) that axially staggers and circumferentially stagger, and in described H type groove (33), the outer end of at least one deep-slotted chip breaker (331) is stretched between two deep-slotted chip breakers (331) of adjacent H type groove (33).
4. a kind of central-axis type torque sensor according to claim 2, it is characterized in that: between described axle sleeve (4) left side and axis (2), be respectively equipped with clutch shaft bearing (11) and the second bearing (12) between axle sleeve (4) right side and the right canned paragraph (32) of elastic connector (3), between the right side of described right canned paragraph (32), flange (6) and axis (2), be provided with the 3rd bearing (13).
5. according to a kind of central-axis type torque sensor described in claim 2 or 3 or 4, it is characterized in that: the circumferential interval of right-hand member of described right canned paragraph (32) is furnished with several draw-in grooves (322), described flange (6) endoporus perisporium is provided with several fixture blocks (61) corresponding with draw-in groove (322), and the right-hand member of right canned paragraph (32) and flange (6) are fixed by draw-in groove (322) and the clamping realization of fixture block (61).
6. according to a kind of central-axis type torque sensor described in claim 2 or 3 or 4, it is characterized in that: the left canned paragraph (34) of described elastic connector (3) and axis (2) be by key connect realize relatively-stationary.
7. according to a kind of central-axis type torque sensor described in claim 1 or 2 or 3 or 4, it is characterized in that: described axle sleeve (4) one sides have axially extended opening, in this opening, be provided with PBC plate (8), described two groups of Hall elements (9) are arranged on this PBC plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483272.2U CN203544280U (en) | 2013-08-08 | 2013-08-08 | Center shaft type torque sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483272.2U CN203544280U (en) | 2013-08-08 | 2013-08-08 | Center shaft type torque sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203544280U true CN203544280U (en) | 2014-04-16 |
Family
ID=50462434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320483272.2U Withdrawn - After Issue CN203544280U (en) | 2013-08-08 | 2013-08-08 | Center shaft type torque sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203544280U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381876A (en) * | 2013-08-08 | 2013-11-06 | 苏州捷诚科技有限公司 | Central shaft type torque sensor |
| CN104709430A (en) * | 2014-10-31 | 2015-06-17 | 太仓市悦博电动科技有限公司 | Treading force output device which is used for middle shaft torque sensing system of electric bike and is in two-stage spline connection |
| CN115610569A (en) * | 2022-11-02 | 2023-01-17 | 杭州辰控智能控制技术有限公司 | Torque sensor, power-assisted bicycle, torque detection method and processor |
-
2013
- 2013-08-08 CN CN201320483272.2U patent/CN203544280U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381876A (en) * | 2013-08-08 | 2013-11-06 | 苏州捷诚科技有限公司 | Central shaft type torque sensor |
| CN104709430A (en) * | 2014-10-31 | 2015-06-17 | 太仓市悦博电动科技有限公司 | Treading force output device which is used for middle shaft torque sensing system of electric bike and is in two-stage spline connection |
| CN115610569A (en) * | 2022-11-02 | 2023-01-17 | 杭州辰控智能控制技术有限公司 | Torque sensor, power-assisted bicycle, torque detection method and processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20151223 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |