CN202424399U - Mechanical gear shifting hub motor with double clutches - Google Patents
Mechanical gear shifting hub motor with double clutches Download PDFInfo
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- CN202424399U CN202424399U CN201120500498XU CN201120500498U CN202424399U CN 202424399 U CN202424399 U CN 202424399U CN 201120500498X U CN201120500498X U CN 201120500498XU CN 201120500498 U CN201120500498 U CN 201120500498U CN 202424399 U CN202424399 U CN 202424399U
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Abstract
The utility model discloses a mechanical gear shifting hub motor with double clutches, which comprises a motor, a spindle, a hub and a gear changing arrangement. The spindle is connected with the motor, the hub is disposed on the spindle, the gear changing arrangement is arranged on the spindle, transmits power of the motor to the hub, leads the hub to rotate at different rotation speeds and consists of a first-gear change gear set, a second-gear change gear set and a gear shifting connector, the gear shifting connector can move on the spindle to be combined with the first-gear change gear set, the first-gear change gear set is close to the hub, the second-gear change gear set is close to the motor, the first overrunning clutch is disposed in the first-gear change gear set, and the second overrunning clutch is arranged in the second-gear change set. When a vehicle is reversed, the two gear sets cannot be interfered mutually under the effects of the two clutches, so that the vehicle can be reversed. In addition, the vehicle can be reversed when at a high gear and a low gear, clutch lubrication and protection are better, and cost is low.
Description
Technical field
The utility model relates to the hub technology field of mechanical and power equipment, relates in particular to a kind of mechanical shift wheel hub motor with two clutches.
Background technology
Social now, electric motor cars such as battery-operated motor cycle, electric bicycle are widely used because of easy to use, quick, laborsaving.The wheel hub of existing electric motor car is equipped with the motor installation position, motor is set, through the rotation of motor-driven wheel hub on it.Motor in the running, during its load variations, its working point efficient changes thereupon, and every motor all has a maximal efficiency interval; Motor vehicle is in advancing; With load-carrying and road condition change, load torque must change, the variable effect motor working efficiency of this load torque; And final influence continuation of the journey mileage; Under the situation of climbing or heavy load, motor output torque is not enough, and motor stall can occur, generate heat even stop operating.The prior electric car, can not use under mountain area, hills or heavy duty situation so only can promote the use of in the plains region because mechanical transmission adjustment moment of torsion and speed are not set, and therefore, continuing, distance is short, the scope of application is little.And if add mechanical transmission, can cause volume to strengthen again, use inconvenience.
In order to solve above technical problem, the someone develops mechanical shift wheel hub motor, through two pairs of change-speed gearing groups and other supplementary structures are set, makes it possible to realize mechanical speed change with compact structure, makes motor under different working conditions, all can efficiently move.But because electric motor car in use often need move back car, the mechanical shift wheel hub of said structure two groups of gear trains when moving back car can interfere with each other, and can't realize reversing.
The utility model content
The utility model purpose is, a kind of mechanical shift wheel hub motor with two clutches is provided, and can realize reversing.
For solving the problems of the technologies described above; The mechanical shift wheel hub motor of the two clutches of the band of the utility model; Comprise motor, the main shaft that is connected with motor, be arranged on the wheel hub on the main shaft; Also comprise the speed change gear that is arranged on the said main shaft, motor power is passed to wheel hub and wheel hub is rotated with different rotating speeds; Said speed change gear comprises first grade of change-speed gearing group, second grade of change-speed gearing group and can on main shaft, move the shift connecting piece to realize combining with first grade of change-speed gearing group, and first grade of change-speed gearing group is near the wheel hub setting, and second grade of change-speed gearing group is near the motor setting; Be provided with first freewheel clutch in first grade of change-speed gearing group, second grade of change-speed gearing group is provided with second freewheel clutch.
Preferably; Said shift connecting piece comprises that one has the main body of axis hole and is arranged on the some convexities on the main body lateral wall; Said protruding axis direction setting along said main body; One distal process of said convexity is started from an end face of said main body and is extended on this end face, forms one and connects platform, and the connection platform of said shift connecting piece combines with first grade of change-speed gearing group or separates.
Preferably; The driven change-speed gearing of second speed change in second grade of change-speed gearing group extends a support portion along the axis hole sidewall; Said support portion is stretched in the axis hole of the first speed change driven gear of first grade of adjacent with it change-speed gearing group; Said support portion is provided with link slot, and said connection platform and link slot are suitable.
Preferably; Said speed change gear also comprises output sleeve, shift assembly; Said output sleeve one end is connected with wheel hub; The other end is connected with the first speed change driven gear in first grade of change-speed gearing group through first freewheel clutch, and said shift assembly is arranged on and also can promotes the shift connecting piece on the said main shaft and move, conducting cut off first grade of change-speed gearing group or second grade of change-speed gearing group to the transmission of power of output sleeve.
Preferably, said shift assembly comprises speed change thimble, shelves key, and said main shaft is provided with passage along its axis direction, and the sidewall of said main shaft is provided with the fluting with said passage conducting, and said shelves key one end stretches in the passage, and the other end stretches out from fluting; Said shift connecting piece is set on the said main shaft, and its inwall is provided with protruding circle, and said shift thimble stretches in the passage and can promote a grade key and moves, and said shelves protruding circle of key contacts and then promotion shift connecting piece move.
Preferably, said shift assembly also comprises the return elastic component that is arranged on the said main shaft, between motor and shift connecting piece.
Preferably; The second speed change driving gear in the first speed change driving gear of first grade of change-speed gearing group and the second grade of change-speed gearing group all connects firmly through same countershaft and motor, and the second speed change driven gear in the first speed change driven gear of first grade of change-speed gearing group and the second grade of change-speed gearing group all is connected with main shaft through bearing.
Preferably, said speed change gear also comprises intermeshing reduction gearing and pinion, and said reduction gearing is arranged on the countershaft regularly; The hollow shaft of said pinion and rotor is structure as a whole.
Preferably; Said second grade of change-speed gearing group comprises the second speed change driving gear, the second speed change driven gear that is meshed; Be arranged with hollow pinion in the second speed change driving gear, said hollow pinion periphery is provided with ratchet, jump ring, and jump ring blocks an end of ratchet; Ratchet is under the effect of jump ring elastic force, and an end can freely open, and opens an end and can inwardly be reduced to original position under external force, and the axis hole of the second speed change driving gear is provided with along the unidirectional tooth of same direction inclination, and ratchet and unidirectional tooth constitute second freewheel clutch.
Preferably; Output sleeve one end is connected through first freewheel clutch with the first speed change driven gear in first grade of change-speed gearing group; The other end is connected with wheel hub through spline, and outer wall one end of said output sleeve is provided with ratchet, jump ring, and jump ring blocks an end of ratchet; Ratchet is under the elastic force effect of jump ring; One end can freely open; Open the end original position of can inwardly withdrawing under external force, the end that output sleeve is provided with ratchet stretches in the first speed change driven gear, constitutes first freewheel clutch with unidirectional tooth in the first speed change driven gear axis hole.
Compared with prior art, the mechanical shift wheel hub motor of the two clutches of the band of the utility model has following advantage:
Owing to be provided with first grade of change-speed gearing group, second grade of change-speed gearing group in the speed change gear, be equipped with freewheel clutch in these two grades of change-speed gearing groups, thereby when reversing; Play a role through two freewheel clutches; And make two grades of change-speed gearing groups can not interfere, make reversing to realize, and the speed shelves can be moveed backward; Better to the lubricated and protection of clutch simultaneously, cost is lower.
Description of drawings
Fig. 1 be the two clutches of the utility model band mechanical shift wheel hub motor one preferred embodiment the decomposition texture sketch map;
Fig. 2 is the combination sketch map among Fig. 1.
Embodiment
For the technical scheme that makes the utility model is clearer,, the mechanical shift wheel hub motor of the two clutches of band of the utility model is elaborated through concrete embodiment below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, the mechanical shift wheel hub motor of the two clutches of the band in the present embodiment comprises motor 1, main shaft 2, wheel hub 3, is arranged on the speed change gear between motor 1 and the wheel hub 3.
In the present embodiment, wheel hub 3 is an one chip, in the prior art biplate symmetry combine and motor is enclosed in wheel hub, heat radiation is better, long service life, simultaneously, the wheel hub of one chip is convenient to install, dismounting, maintenance.Wheel hub 3 in the present embodiment adopts the high material of intensity to process, and because the difference that inner speed change gear is provided with, even be one chip, can satisfy instructions for use too.
Wherein, speed change gear comprise shell 4, be arranged on reduction gearing in the shell 4, pinion and first grade of change-speed gearing group, second grade of change-speed gearing group, shift assembly, shift connecting piece, output sleeve.Wherein:
Reduction gearing 5 is meshing with each other with pinion 6, and pinion 6 is structure as a whole with the hollow shaft of motor, and reduction gearing 5 connects firmly with motor 1 through a countershaft 7, and motor 1 is provided with bearing pedestal 1a, and countershaft 7 is fixing through bearing and motor 1;
First grade of change-speed gearing group comprises the intermeshing first speed change driving gear 8, the first speed change driven gear 9; Second grade of change-speed gearing group comprises the intermeshing second speed change driving gear 10, the second speed change driven gear 11; Reduction gearing 5, the first speed change driving gear 8 and hollow pinion 27 connect firmly with countershaft 7, and the periphery of hollow pinion 27 is provided with pawl slot, jump ring groove, is provided with ratchet 26 in the pawl slot, are provided with jump ring 28 in the corresponding jump ring groove, and jump ring 28 blocks an end of ratchet 26; Ratchet 26 is under jump ring 28 elastic force effects, and an end can freely open, and opens the end original position of can inwardly withdrawing under external force.
The axis hole of the second speed change driving gear 10 is provided with along the unidirectional tooth 10a of same direction inclination; And be inserted in hollow pinion 27; Under the rotation of ratchet 26 and hollow pinion 27, constitute second freewheel clutch; The second speed change driven gear 11 connects through bearing and main shaft 2, under the second speed change driving gear 10 drives, can rotate around main shaft 2;
The axis hole of the first speed change driven gear 9 is provided with along the unidirectional tooth 9a of same direction inclination, and the diameter of the first speed change driven gear 9 is greater than the diameter of the second speed change driven gear 11.A support portion is extended along axis direction by the axis hole place of the second speed change driven gear 11, and this support portion is stretched in the first speed change driven gear 9, and bearing is set on it, is used for supporting the end that output sleeve 16 stretches into the first speed change driven gear 9.This kind set-up mode can make the length of main shaft reduce, thereby reduce overall volume.The end of this support portion is provided with a plurality of protruding 11a, forms link slot 11b between the adjacent protrusion 11a.
Wherein, the shift assembly comprises shift thimble 12, shelves key 13, back-moving spring 14.Main shaft 2 is provided with a passage 2a, supplies shift thimble 12 to stretch into, and the sidewall of main shaft 2 is provided with fluting 2b; This fluting 2b is communicated with passage 2a; Shelves key 13 is among the passage 2a and is protruding from fluting 2b, and under the promotion of shift thimble 12, shelves key 13 can move along passage 2a and fluting 2b; Back-moving spring 14 is set on the main shaft 2, is arranged between the second speed change driven gear 11 and the shelves key 13.
Be provided with internal spline in the axis hole of wheel hub 3, the end that output sleeve 16 is provided with external splines stretches among the internal spline 3a of wheel hub 3, makes that working as wheel hub 3 rotates under the drive of output sleeve 16.The inwall of output sleeve 16 is provided with some splines; The end that shift connecting piece 15 is provided with spline 15b stretches in the output sleeve 16, and spline 15b combines with spline in the output sleeve, makes output sleeve 16 to be driven and to rotate thereupon by shift connecting piece 15.
Below the course of work and the principle of the mechanical speed change electric wheel hub in the present embodiment described.
Mechanical speed change electric wheel hub in the present embodiment can be realized two grades of speed changes: promptly shelves reach shelves fast at a slow speed.Be shelves at a slow speed under the normality,, can adjust to quick shelves through speed change.
1, with shelves work at a slow speed:
Under the normality, the spline 15b of shift connecting piece 15 and the splined engagement in the output sleeve 16, an end of shift connecting piece 15 connects platform 15a and separates with the second speed change driven gear, 11 support portion side upper groove 11a.When motor 1 rotated, pinion 6 drove reduction gearing 5 and rotates, and 5 pairs of motors 1 of reduction gearing slow down.Because reduction gearing 5, the first speed change driving gear 8 and hollow pinion 27 all connect firmly with countershaft 7, therefore, reduction gearing 5 drives the first speed change driving gear 8 when rotating and hollow pinion 27 rotates simultaneously.The first speed change driving gear 8 drives the first speed change driven gear 9 and rotates; The first speed change driven gear, 9 unidirectional tooth 9a combine with the ratchet 18 of output sleeve 16; The first speed change driven gear 9 that is driven by the first speed change driving gear 8 drives output sleeve 16 rotations; Output sleeve 16 drives wheel hub 3 and rotates, thereby realizes the power output of shelves at a slow speed.Hollow pinion 27 drove the second speed change driving gear 10, drove the first speed change driven gear 11 equally and rotate through ratchet 26 this moment; Link slot 11b separates on the side, support portion of 15a and the second speed change driven gear 11 because an end of shift connecting piece 15 connects, and the second speed change driven gear 11 does not have output speed.
2, with quick shelves work:
When the speed of a motor vehicle acquires a certain degree when not needing too big torsion, at this moment, promote shift thimble 12; Shift thimble 12 moves forward, and then promotes a shelves key 13 and move, and shelves key 13 acts on the inner protruding circle of shift connecting piece 15; Shift connecting piece 15 is pushed forward, and the connection platform 15a in the shift connecting piece 15 is combined with the second speed change driven gear, 11 support portion side upper groove 11a, and the second speed change driven gear 11 rotates and drives 15 rotations of shift connecting piece; Shift connecting piece 15 rotates and drives output sleeve 16 rotations; Output sleeve 16 drives wheel hub 3 and rotates, thereby the realization power output of shelves fast realizes by grade switching to quick shelves at a slow speed.This moment, the first speed change driving gear, the 8 same first speed change driven gears 9 that drive rotated, because the relation of gear ratio, the rotating speed of the first speed change driven gear 9 is slower than the rotating speed of output sleeve 16, and 9 pairs of output sleeves 16 of the first speed change driven gear do not have induced effect.
When being in climbing or load-carrying when big, need to increase torsion, at this moment; Cancel thrust to shift thimble 12; Under back-moving spring 14 effect, shift connecting piece 15 is got back to the normality position, and link slot 11b separates on the connection platform 15a on it and the side, the second speed change driven gear, 11 support portion; The first speed change driven gear 9 recovers output sleeve 16 transferring power, comes back to shelves at a slow speed.
3. move back car at shelves at a slow speed
Electric motor car in use often need move back car.Wheel hub 3 reversing drives output sleeves 16 when moving back car, through ratchet 18, the first speed change driven gear 9, the first speed change driving gear 8, reduction gearing 5, pinion 6, thereby drives the motor reversing.The shift connecting piece 15 and the second speed change driven gear 11 are in released state at this moment, and the second speed change driven gear 11 is idle running under the second speed change driving gear 10 drives equally.
4. move back car at quick shelves
At a slow speed shelves slide
When motor does not have the electricity supply, the motor stall, wheel hub 3 also has inertia to be rotated further at this moment; Wheel hub 3 drives output sleeve 16; First freewheel clutch is had an effect, and can not drive the first speed change driven gear 9 and rotate, and shift connecting piece 15 separates state with the second speed change driven gear, 11 places; Can not drive the second speed change driven gear 11 equally and rotate, slide purpose thereby realization separates to reach with motor.
6. slide at quick shelves
Only be the preferred implementation of the utility model below, should be pointed out that above-mentioned preferred implementation should not be regarded as the restriction to the utility model, the protection range of the utility model should be as the criterion with the determined scope of claim.For the technical staff in present technique field, in spirit that does not break away from the utility model and scope, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection range of the utility model.
Claims (10)
1. the mechanical shift wheel hub motor of the two clutches of band; Comprise motor, the main shaft that is connected with motor, be arranged on the wheel hub on the main shaft; It is characterized in that; Also comprise the speed change gear that is arranged on the said main shaft, motor power is passed to wheel hub and wheel hub is rotated with different rotating speeds; Said speed change gear comprises first grade of change-speed gearing group, second grade of change-speed gearing group and can on main shaft, move the shift connecting piece to realize combining with first grade of change-speed gearing group, and first grade of change-speed gearing group is near the wheel hub setting, and second grade of change-speed gearing group is near the motor setting; Be provided with first freewheel clutch in first grade of change-speed gearing group, second grade of change-speed gearing group is provided with second freewheel clutch.
2. the mechanical shift wheel hub motor of the two clutches of band as claimed in claim 1; It is characterized in that; Said shift connecting piece comprises that one has the main body of axis hole and is arranged on the some convexities on the main body lateral wall, said protruding axis direction setting along said main body, and a distal process of said convexity is started from an end face of said main body and is extended on this end face; Form one and connect platform, the connection platform of said shift connecting piece combines with first grade of change-speed gearing group or separates.
3. the mechanical shift wheel hub motor of the two clutches of band as claimed in claim 1; It is characterized in that; The driven change-speed gearing of second speed change in second grade of change-speed gearing group extends a support portion along the axis hole sidewall; Said support portion is stretched in the axis hole of the first speed change driven gear of first grade of adjacent with it change-speed gearing group, and said support portion is provided with link slot, and said connection platform and link slot are suitable.
4. the mechanical shift wheel hub motor of the two clutches of band as claimed in claim 1; It is characterized in that; Said speed change gear also comprises output sleeve, shift assembly; Said output sleeve one end is connected with wheel hub; The other end is connected with the first speed change driven gear in first grade of change-speed gearing group through first freewheel clutch, and said shift assembly is arranged on and also can promotes the shift connecting piece on the said main shaft and move, conducting cut off first grade of change-speed gearing group or second grade of change-speed gearing group to the transmission of power of output sleeve.
5. the mechanical shift wheel hub motor of the two clutches of band as claimed in claim 4; It is characterized in that; Said shift assembly comprises speed change thimble, shelves key, and said main shaft is provided with passage along its axis direction, and the sidewall of said main shaft is provided with the fluting with said passage conducting; Said shelves key one end stretches in the passage, and the other end stretches out from fluting; Said shift connecting piece is set on the said main shaft, and its inwall is provided with protruding circle, and said shift thimble stretches in the passage and can promote a grade key and moves, and said shelves protruding circle of key contacts and then promotion shift connecting piece move.
6. the mechanical shift wheel hub motor of the two clutches of band as claimed in claim 4 is characterized in that said shift assembly also comprises the return elastic component that is arranged on the said main shaft, between motor and shift connecting piece.
7. the mechanical shift wheel hub motor of the two clutches of band as claimed in claim 4; It is characterized in that; The second speed change driving gear in the first speed change driving gear of first grade of change-speed gearing group and the second grade of change-speed gearing group all connects firmly through same countershaft and motor, and the second speed change driven gear in the first speed change driven gear of first grade of change-speed gearing group and the second grade of change-speed gearing group all is connected with main shaft through bearing.
8. the mechanical shift wheel hub motor of the two clutches of band as claimed in claim 7 is characterized in that said speed change gear also comprises intermeshing reduction gearing and pinion, and said reduction gearing is arranged on the countershaft regularly; The hollow shaft of said pinion and rotor is structure as a whole.
9. the mechanical shift wheel hub motor of the two clutches of band as claimed in claim 1; It is characterized in that; Said second grade of change-speed gearing group comprises the second speed change driving gear, the second speed change driven gear that is meshed; Be arranged with hollow pinion in the second speed change driving gear, said hollow pinion periphery is provided with ratchet, jump ring, and jump ring blocks an end of ratchet; Ratchet is under the effect of jump ring elastic force, and an end can freely open, and opens an end and can inwardly be reduced to original position under external force, and the axis hole of the second speed change driving gear is provided with along the unidirectional tooth of same direction inclination, and ratchet and unidirectional tooth constitute second freewheel clutch.
10. the mechanical shift wheel hub motor of the two clutches of band as claimed in claim 4; It is characterized in that; Output sleeve one end is connected through first freewheel clutch with the first speed change driven gear in first grade of change-speed gearing group; The other end is connected with wheel hub through spline, and outer wall one end of said output sleeve is provided with ratchet, jump ring, and jump ring blocks an end of ratchet; Ratchet is under the elastic force effect of jump ring; One end can freely open; Open the end original position of can inwardly withdrawing under external force, the end that output sleeve is provided with ratchet stretches in the first speed change driven gear, constitutes first freewheel clutch with unidirectional tooth in the first speed change driven gear axis hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120500498XU CN202424399U (en) | 2011-12-05 | 2011-12-05 | Mechanical gear shifting hub motor with double clutches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120500498XU CN202424399U (en) | 2011-12-05 | 2011-12-05 | Mechanical gear shifting hub motor with double clutches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202424399U true CN202424399U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120500498XU Expired - Fee Related CN202424399U (en) | 2011-12-05 | 2011-12-05 | Mechanical gear shifting hub motor with double clutches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202424399U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595428A (en) * | 2014-12-26 | 2015-05-06 | 北京航空航天大学 | Automatic two-gear transformer for pure electric automobile |
| CN108799422A (en) * | 2018-08-16 | 2018-11-13 | 深圳市睿腾车辆制造有限公司 | A kind of automatically controlled two speed transmission |
| CN109910602A (en) * | 2019-04-10 | 2019-06-21 | 西南大学 | Adaptive automatic shifting electric hub with mechanical double overrunning clutch main shaft output |
| CN111244897A (en) * | 2018-11-28 | 2020-06-05 | 安徽美芝精密制造有限公司 | Detection method, detection device, motor and storage medium |
-
2011
- 2011-12-05 CN CN201120500498XU patent/CN202424399U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595428A (en) * | 2014-12-26 | 2015-05-06 | 北京航空航天大学 | Automatic two-gear transformer for pure electric automobile |
| CN108799422A (en) * | 2018-08-16 | 2018-11-13 | 深圳市睿腾车辆制造有限公司 | A kind of automatically controlled two speed transmission |
| CN111244897A (en) * | 2018-11-28 | 2020-06-05 | 安徽美芝精密制造有限公司 | Detection method, detection device, motor and storage medium |
| CN111244897B (en) * | 2018-11-28 | 2022-09-13 | 安徽美芝精密制造有限公司 | Detection method, detection device, motor and storage medium |
| CN109910602A (en) * | 2019-04-10 | 2019-06-21 | 西南大学 | Adaptive automatic shifting electric hub with mechanical double overrunning clutch main shaft output |
| CN109910602B (en) * | 2019-04-10 | 2021-09-28 | 西南大学 | Mechanical type double-overrunning clutch spindle output self-adaptive automatic speed change electric hub |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20131205 |