CN202379046U - Transmission system of intermediate motor of coil sensing torque transducer - Google Patents
Transmission system of intermediate motor of coil sensing torque transducer Download PDFInfo
- Publication number
- CN202379046U CN202379046U CN2011205612275U CN201120561227U CN202379046U CN 202379046 U CN202379046 U CN 202379046U CN 2011205612275 U CN2011205612275 U CN 2011205612275U CN 201120561227 U CN201120561227 U CN 201120561227U CN 202379046 U CN202379046 U CN 202379046U
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- coil
- torque sensor
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- bracing ring
- transmission system
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Abstract
The utility model relates to a transmission system of an intermediate motor of a coil sensing torque transducer. The transmission system is characterized by comprising a motor, a motor shell, a reduction gearbox, a chain wheel, a first one-way ratchet wheel clutch, a second one-way ratchet wheel clutch, a hollow shaft, a middle shaft and a middle shaft torque sensor, wherein the middle shaft torque sensor is fixed relative to the motor shell; an inner ring of the second one-way ratchet wheel clutch is fixedly connected with the middle shaft; and the hollow shaft is sleeved on the middle shaft and is connected with the motor shell through the bearing. Through the transmission system of the intermediate motor of the coil sensing torque transducer, disclosed by the utility model, a controller sets a proportion according to the speed of treading a pedal by manpower to output a signal to realize motor drive force output according to the proportion, thus the higher the the manual treading speed is, the larger the drive force output by a motor according to the proportion is, and a purpose of power assistance is realized.
Description
Technical field
The utility model belongs to the Electrical Bicycle field, is specifically related to the mid-motor transmission system of a kind of coil-induced torque sensor.
Background technology
Electrical Bicycle (motorized bicycle/electric bicycle); Be commonly called as and be battery-driven car, storage battery car; Be a kind of be a kind of vehicle of main energy sources with the storage battery; Its outward appearance is similar with Bicycles and Motorcycles, and outward appearance is similar with bicycle generally all has stretcher, chain, and the masterpiece of can choosing is an auxiliary power.
Electric bicycle motor has mainly adopted brush DC machine drive system and brshless DC motor drive system, also has few part to adopt AC induction motor drive system, switched reluctance machines drive system etc.But this type systematic is difficult to trample according to manpower the big or small preset proportion output signal of the speed of stretcher, realizes output motor propulsive effort in proportion.
The utility model content
The purpose of the utility model is to provide a kind of coil-induced torque sensor mid-motor transmission system, tramples the big or small preset proportion output signal of the speed of stretcher according to manpower through controller, realizes output motor propulsive effort in proportion.
The mid-motor transmission system of the described a kind of coil-induced torque sensor of the utility model; Comprise motor, motor housing, drop-gear box, sprocket wheel, the first single direction ratchet power-transfer clutch, the second single direction ratchet power-transfer clutch, hollow shaft, axis and axis torque sensor; Wherein, said axis torque sensor and said motor housing relative fixed; The inner ring of the said second single direction ratchet power-transfer clutch is captiveed joint with said axis; Said hollow shaft sleeve is contained on the said axis, is connected with said motor housing through bearing.
Further; Said axis torque sensor comprises Zuo Gai, You Gai, five-way, compression spring, chain drum, driven skewback, initiatively skewback, the displacement detector decide bracing ring, moving bracing ring, keyway, steel ball and being used to detect the longitudinal travel that moves bracing ring; Wherein, said axis covers on a said left side through bearing installation; Said left side lid and said right lid are fixedly mounted on the said five-way; Said moving bracing ring is socketed on the said axis; On the medial surface of said moving bracing ring and the lateral surface of said axis a plurality of said keyways can be set evenly respectively, the movable row's steel ball of placing in said keyway; Said driven skewback is fixedly mounted on saidly to be decided on the bracing ring; A said end of deciding bracing ring is connected to said right lid through bearing, and the lateral surface of the other end is installed on the medial surface of the said second single direction ratchet power-transfer clutch, and this medial surface passes through bearing fixing on said axis; Said active skewback is resisted against on the said driven skewback; The lateral surface of the said second single direction ratchet power-transfer clutch is connected on the said chain drum; Decide at said moving bracing ring and said to be placed with said compression spring between the end face of bracing ring; Said displacement detector is installed near the moving bracing ring.
Further, said displacement detector comprises coil and induction coil, and wherein, said coil stationary is installed on the said five-way; One end of said moving bracing ring fixedly mounts said active skewback, and the other end fixedly mounts said induction coil.
Further, said active skewback and said driven skewback contact surface are set to helical structure.
Further, the cross section of said keyway is semicircle.
Further, the keyway length on the lateral surface of said axis is greater than the keyway length on the medial surface of said moving bracing ring.
Further, at the keyway two ends of the medial surface of said moving bracing ring baffle plate is set.
Further, said drop-gear box is made up of center external gear, center inner gear, dual gear, pinion carrier, and wherein, said center external gear is the input link of said drop-gear box, is fixed on the said hollow shaft; Said center inner gear is the output link of said drop-gear box, is connected with said motor housing through bearing, and captives joint with the outer ring and the said sprocket wheel of the said second single direction ratchet power-transfer clutch; Said dual gear its center of gyration line relatively is rotationally connected, and is engaged between said center external gear and the said center inner gear; Said pinion carrier is captiveed joint with said motor housing.
Further, said dual gear number is 1-3.
Further, said motor comprises motor coil and rotor, and wherein, said hollow shaft is connected through the said first single direction ratchet power-transfer clutch with said rotor.
The mid-motor transmission system of the described coil-induced torque sensor of the utility model is trampled the big or small preset proportion output signal of the speed of stretcher according to manpower through controller, realize output motor propulsive effort in proportion.Thereby the speed that manpower is trampled is high more, and the propulsive effort that motor is exported in proportion is big more, realizes power-assisted purpose.
Description of drawings
The mid-motor transmission system scheme drawing of coil-induced torque sensor that Fig. 1 proposes for the utility model;
The torque sensor structural representation that Fig. 2 proposes for the utility model;
Fig. 3 a, Fig. 3 b and Fig. 3 c are under the mid-motor transmission system mode of operation of coil-induced torque sensor that proposes of the utility model, the scheme drawing of different position relations between the magnet steel on the rotating disk and the Hall element.
The specific embodiment
Below in conjunction with specific embodiment, the mid-motor transmission system of the described a kind of coil-induced torque sensor of the utility model is done further to specify.
As shown in Figure 1; The mid-motor transmission system of the described a kind of coil-induced torque sensor of the utility model; Comprise motor, motor housing 5, drop-gear box, sprocket wheel 8, the first single direction ratchet power-transfer clutch 1, the second single direction ratchet power-transfer clutch 10, hollow shaft 9, axis 11 and axis torque sensor; Wherein, said axis torque sensor and said motor housing 5 relative fixed; The inner ring of the said second single direction ratchet power-transfer clutch 10 is captiveed joint with said axis 11; Said hollow shaft 9 is sleeved on the said axis 11, is connected with said motor housing 5 through bearing.
As shown in Figure 2; Said axis torque sensor comprises left side lid 21, right lid 23, five-way 22, compression spring 16, chain drum 24, driven skewback 14, active skewback 13, decides bracing ring 15, moving bracing ring 17, keyway and steel ball 12; Wherein, said axis 11 covers on 21 on a said left side through bearing installation; Said left side lid 21 is fixedly mounted on the said five-way 22 with said right lid 23; Said moving bracing ring 17 is socketed on the said axis 11; The medial surface of said moving bracing ring 17 and said axis 11 lateral surface on a plurality of said keyways can evenly be set, the movable row's steel ball 12 of placing in said keyway respectively; Said driven skewback 14 is fixedly mounted on saidly to be decided on the bracing ring 15; A said end of deciding bracing ring 15 is connected to said right lid 23 through bearing, and the lateral surface of the other end is installed on the medial surface of the said second single direction ratchet power-transfer clutch 10, and this medial surface passes through bearing fixing on said axis 11; Said active skewback 13 is resisted against on the said driven skewback 14; The lateral surface of the said second single direction ratchet power-transfer clutch 10 is connected on the said chain drum 24; Decide at said moving bracing ring 17 and said to be placed with said compression spring 16 between the end face of bracing ring 15.
In the present embodiment, the displacement detector that is used to detect the longitudinal travel of moving bracing ring is induction coil 19 and coil 18, and wherein, said coil 18 is fixedly mounted on the said five-way 22; One end of said moving bracing ring 17 fixedly mounts said active skewback 13, and the other end fixedly mounts said induction coil 19.
As shown in Figure 2, the preferred mode of operation of said axis torque sensor is: eye left from the right side of said axis 11, establishing clockwise direction is forward, and just the manpower driving direction is a forward.Under the situation of nobody's power effect, said compression spring 16 in the raw.When the manpower cw is stepped on stretcher, the said axis 11 of captive joint rotates with it, and said active skewback 13 is and then rotation also, causes the contact surface generation slide relative of said active skewback 13 and said driven skewback 14,
Preferably, said active skewback 13 is set to helical structure with said driven skewback 14 contact surfaces.Under the effect of helical structure; Add the effect of the above steel ball; Longitudinal travel takes place again with respect to both having rotated motion from said moving skewback 14 in said active skewback 13, causes said moving bracing ring 17 to produce radial and axial moving; According to contact surface design-calculated hand of spiral between said active skewback 13 and the said driven skewback 14; This moment, said moving bracing ring 17 overcame the tension force of said compression spring 16, and said relatively axis 11 moves axially to the right, and said induction coil 19 moves to said coil 18 directions.Fig. 3 shows under the unlike signal intensity, the position relation of said induction coil 19 and said coil 18.Three kinds of situation that Fig. 3 a, 3b, 3c are respectively in weak, the signal of expression signal, signal is strong.
As a kind of preferred version, the cross section of said keyway is set to semicircle.
Preferably, the keyway length on the lateral surface of said axis 11 is greater than the keyway length on the medial surface of said moving bracing ring 17, so that moving bracing ring 17 relative axis 11 axially move.
In order to be enclosed in described row's steel ball in the keyway, at the keyway two ends of the medial surface of said moving bracing ring 17 baffle plate is set, the distance between two end-stopping plates just in time can be held described row's steel ball 12, has constituted a cover ball spline mechanism.
As shown in Figure 1, as a kind of preferred version, said drop-gear box is made up of center external gear 2, center inner gear 7, dual gear 6, pinion carrier 20, and wherein, said center external gear 2 is the input link of said drop-gear box, is fixed on the said hollow shaft 9; Said center inner gear 7 is the output link of said drop-gear box, is connected with said motor housing 5 through bearing, and captives joint with the outer ring and the said sprocket wheel 8 of the said second single direction ratchet power-transfer clutch 10; Said dual gear 6 relative its center of gyration lines are rotationally connected, and are engaged between said center external gear 2 and the said center inner gear 7; Said pinion carrier 20 is captiveed joint with said motor housing 5.
As a kind of preferred version, said dual gear number is 1-3.Certainly, those skilled in the art also can be provided with gear-type and quantity according to design demand flexibly.
Preferably, said motor comprises motor coil 3 and rotor 4, and wherein, said hollow shaft 9 is connected through the said first single direction ratchet power-transfer clutch 1 with said rotor 4.
The utility model mode of operation is preferably: as long as a certain moment cw is stepped on bicycle pedal; Propulsive effort is delivered to said axis 11; The torsion of said axis 11 is delivered to said active skewback 13, behind the tension force that overcomes said compression spring 16 through the effect of ball spline mechanism; The spiral contact surface generation slide relative of said active skewback 13 and said driven skewback 14; Pass to torsion on the said driven skewback 14 on the one hand, through said second pawl clutch, 10 output manpowers, the said relatively axis 11 of said on the other hand moving bracing ring 17 moves right; Driven said induction coil 19 and got into said coil 18 to the right, be directly proportional with manpower cw pedal force so said induction coil 19 moves right.
For clearer elaboration the utility model; Suppose that manpower driving this moment remains unchanged; The spiral contact surface of so said active skewback 13 and said driven skewback 14 is static after slide relative; Directly transmit torsion and give the said bracing ring 15 of deciding, again through the said second single direction ratchet power-transfer clutch, 10 output manpowers.Also static after the said relatively axis 11 of said moving bracing ring 17 this moment slides, said compression spring 16 is also static after compression.That is to say; When manpower drives; Said moving bracing ring 17, induction coil 19, initiatively skewback 13, driven skewback 14, decide the relative five-way 22 of parts such as bracing ring 15 and the said coil 18 that is fixedly mounted on the five-way is high speed revolutions; Though said induction coil 19 is with respect to said coil 18 high speed revolutions, the depth that this moment, said induction coil 19 got into said coil 18 is that the power of collapsing of stepping on the people is directly proportional, and measures signal that this change in location causes changes of magnetic field and just can control motor and produce propulsive effort in proportion; Order about Electrical Bicycle jointly and move ahead, thereby realized power-assisted purpose.
Those skilled in the art are to be appreciated that; Measure this change in location and cause the signal of changes of magnetic field can use other displacement detectors, such as through linear Hall position transduser or other forms of pressure sensor, position transduser, opto-electronic pickup or other in good time acquisition testing go out the axial displacement of said moving bracing ring and export device of corresponding signal etc.
In sum, the mid-motor transmission system of the described coil-induced torque sensor of the utility model can be realized power-assisted purpose along with foot-operated speed output motor propulsive effort in proportion.
The preferred embodiment that the above is merely the utility model is not the practical range that is used for limiting the utility model; If do not break away from the spirit and the scope of the utility model, the utility model is made amendment or is equal to replacement, all should be encompassed in the middle of the protection domain of claim of the utility model.
Claims (10)
1. mid-motor transmission system of coil-induced torque sensor; It is characterized in that; Comprise motor, motor housing, drop-gear box, sprocket wheel, the first single direction ratchet power-transfer clutch, the second single direction ratchet power-transfer clutch, hollow shaft, axis and axis torque sensor, wherein
Said axis torque sensor and said motor housing relative fixed;
The inner ring of the said second single direction ratchet power-transfer clutch is captiveed joint with said axis;
Said hollow shaft sleeve is contained on the said axis, is connected with said motor housing through bearing.
2. the mid-motor transmission system of coil-induced torque sensor according to claim 1; It is characterized in that; Said axis torque sensor comprises Zuo Gai, You Gai, five-way, compression spring, chain drum, driven skewback, initiatively skewback, the displacement detector decide bracing ring, moving bracing ring, keyway, steel ball and being used to detect the longitudinal travel that moves bracing ring; Wherein
Said axis covers on a said left side through bearing installation;
Said left side lid and said right lid are fixedly mounted on the said five-way;
Said moving bracing ring is socketed on the said axis;
On the medial surface of said moving bracing ring and the lateral surface of said axis a plurality of said keyways can be set evenly respectively, the movable row's steel ball of placing in said keyway;
Said driven skewback is fixedly mounted on saidly to be decided on the bracing ring;
A said end of deciding bracing ring is connected to said right lid through bearing, and the lateral surface of the other end is installed on the medial surface of the said second single direction ratchet power-transfer clutch, and this medial surface passes through bearing fixing on said axis;
Said active skewback is resisted against on the said driven skewback;
The lateral surface of the said second single direction ratchet power-transfer clutch is connected on the said chain drum;
Decide at said moving bracing ring and said to be placed with said compression spring between the end face of bracing ring;
Said displacement detector is installed near the moving bracing ring.
3. the mid-motor transmission system of coil-induced torque sensor according to claim 2 is characterized in that said displacement detector comprises coil and induction coil, wherein,
Said coil stationary is installed on the said five-way;
One end of said moving bracing ring fixedly mounts said active skewback, and the other end fixedly mounts said induction coil.
4. the mid-motor transmission system of coil-induced torque sensor according to claim 2 is characterized in that, said active skewback and said driven skewback contact surface are set to helical structure.
5. the mid-motor transmission system of coil-induced torque sensor according to claim 2 is characterized in that, the cross section of said keyway is semicircle.
6. the mid-motor transmission system of coil-induced torque sensor according to claim 2 is characterized in that the keyway length on the lateral surface of said axis is greater than the keyway length on the medial surface of said moving bracing ring.
7. the mid-motor transmission system of coil-induced torque sensor according to claim 2 is characterized in that, at the keyway two ends of the medial surface of said moving bracing ring baffle plate is set.
8. the mid-motor transmission system of coil-induced torque sensor according to claim 1 is characterized in that said drop-gear box is made up of center external gear, center inner gear, dual gear, pinion carrier, wherein,
Said center external gear is the input link of said drop-gear box, is fixed on the said hollow shaft;
Said center inner gear is the output link of said drop-gear box, is connected with said motor housing through bearing, and captives joint with the outer ring and the said sprocket wheel of the said second single direction ratchet power-transfer clutch;
Said dual gear its center of gyration line relatively is rotationally connected, and is engaged between said center external gear and the said center inner gear;
Said pinion carrier is captiveed joint with said motor housing.
9. the mid-motor transmission system of coil-induced torque sensor according to claim 7 is characterized in that, said dual gear number is 1-3.
10. the mid-motor transmission system of coil-induced torque sensor according to claim 1 is characterized in that said motor comprises motor coil and rotor, wherein,
Said hollow shaft is connected through the said first single direction ratchet power-transfer clutch with said rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205612275U CN202379046U (en) | 2011-12-29 | 2011-12-29 | Transmission system of intermediate motor of coil sensing torque transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205612275U CN202379046U (en) | 2011-12-29 | 2011-12-29 | Transmission system of intermediate motor of coil sensing torque transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202379046U true CN202379046U (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205612275U Withdrawn - After Issue CN202379046U (en) | 2011-12-29 | 2011-12-29 | Transmission system of intermediate motor of coil sensing torque transducer |
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| Country | Link |
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| CN (1) | CN202379046U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514679A (en) * | 2011-12-29 | 2012-06-27 | 苏州博菲利电动科技有限公司 | Motor drive system in coil sensing torque sensor |
| WO2013097283A1 (en) * | 2011-12-29 | 2013-07-04 | 苏州博菲利电动科技有限公司 | Signal-collecting apparatus for electric bicycle |
| WO2013097282A1 (en) * | 2011-12-29 | 2013-07-04 | 苏州博菲利电动科技有限公司 | Magnetron torque-induction transmission system |
| WO2016065501A1 (en) * | 2014-10-31 | 2016-05-06 | 太仓市悦博电动科技有限公司 | Central shaft torque sensing system for electric bicycle having centre-mounted motor |
| EP3480102A4 (en) * | 2016-07-01 | 2019-07-24 | Wuhan Ttium Motor Technology Co., Ltd. | Built-in motor for bicycle and electric powered bicycle |
-
2011
- 2011-12-29 CN CN2011205612275U patent/CN202379046U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514679A (en) * | 2011-12-29 | 2012-06-27 | 苏州博菲利电动科技有限公司 | Motor drive system in coil sensing torque sensor |
| WO2013097283A1 (en) * | 2011-12-29 | 2013-07-04 | 苏州博菲利电动科技有限公司 | Signal-collecting apparatus for electric bicycle |
| WO2013097281A1 (en) * | 2011-12-29 | 2013-07-04 | 苏州博菲利电动科技有限公司 | Coil inductance torque sensor center-mounted motor transmission system |
| WO2013097282A1 (en) * | 2011-12-29 | 2013-07-04 | 苏州博菲利电动科技有限公司 | Magnetron torque-induction transmission system |
| CN102514679B (en) * | 2011-12-29 | 2014-01-01 | 太仓市悦博电动科技有限公司 | Motor drive system in coil sensing torque sensor |
| WO2016065501A1 (en) * | 2014-10-31 | 2016-05-06 | 太仓市悦博电动科技有限公司 | Central shaft torque sensing system for electric bicycle having centre-mounted motor |
| US10308314B2 (en) | 2014-10-31 | 2019-06-04 | Taicang Yuebo Electric Technology Co., Ltd. | Central shaft torque sensing for electric bicycle having centre-mounted motor |
| EP3480102A4 (en) * | 2016-07-01 | 2019-07-24 | Wuhan Ttium Motor Technology Co., Ltd. | Built-in motor for bicycle and electric powered bicycle |
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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: 20120815 Effective date of abandoning: 20140101 |
|
| RGAV | Abandon patent right to avoid regrant |