CN105090421A - Bow cone type two-gear self-adaptation automatic variable speed driving assembly for external rotor motor of electric motorcycle - Google Patents
Bow cone type two-gear self-adaptation automatic variable speed driving assembly for external rotor motor of electric motorcycle Download PDFInfo
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- CN105090421A CN105090421A CN201510572233.3A CN201510572233A CN105090421A CN 105090421 A CN105090421 A CN 105090421A CN 201510572233 A CN201510572233 A CN 201510572233A CN 105090421 A CN105090421 A CN 105090421A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
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Abstract
The invention discloses a bow cone type two-gear self-adaptation automatic variable speed driving assembly for an external rotor motor of an electric motorcycle. The bow cone type two-gear self-adaptation automatic variable speed driving assembly comprises a driving motor, a box body and a transmission shaft. The box body is provided with an installation part used for being laterally hung and installed on the side of a hub. The bow cone type two-gear self-adaptation automatic variable speed driving assembly further comprises a slow-gear transmission mechanism and a mechanical intelligent self-adaptation variable speed assembly arranged on the transmission shaft. An annular concave part is formed in the axial end face of the outer ring of an overrunning clutch of the slow-gear transmission mechanism; the inner ring is rotationally arranged in the annular concave part in a matched manner; and a meshed space is formed between the outer circle of the inner ring and the inner wall of the radial outer side of the annular concave part. According to the bow cone type two-gear self-adaptation automatic variable speed driving assembly, the structure that an inner ring is directly supported by a transmission shaft traditionally is avoided, the problem that a transmission error is amplified on the overrunning clutch is also solved, the overall stability of the overrunning clutch can be ensured, stable supporting of a speed changer can still be ensured, when operating for a long term, the operation noise is lowered, the operation comfort and the transmission efficiency are ensured, and therefore energy consumption is reduced; and in addition, the service life is prolonged, the operation precision is improved, and the bow cone type two-gear self-adaptation automatic variable speed driving assembly is suitable for heavy-load and high-speed using environments.
Description
Technical field
The present invention relates to a kind of vehicle transmission, particularly a kind of battery-operated motor cycle external rotor electric machine bow bevel-type two grades of self-adapting automatic gear shifts drive assembly.
Background technique
In prior art, automobile, motorcycle, electric bicycle are all directly control closure or Current Control speed by speed-regulating handle or accelerator pedal substantially, or adopt hand-control mechanical automatic automatic transmission mode to realize speed change.The operation of driver is depended in the operation of handle or accelerator pedal completely, operation usually can be caused not mate with garage situation, cause motor fluctuation of service, occur stall phenomenon.
Motor Vehicle when by rider when not knowing running resistance, only rule of thumb operate the speed change gear of control, there is following problem unavoidably: 1. start, go up a slope and heavy load time, due to running resistance increase, force motor speed decline work in inefficient district.2., owing to not having mechanical transmission to adjust moment of torsion and speed, can only promote the use of in plains region, use under mountain area, hills and heavy load conditions can not be met, reduce using scope; 3. driving wheel place installing space is little, is difficult to hold automatic transmission and other new technology again after having installed motor or motor; 4. do not possess adaptive function, automatically can not detect, revise and get rid of the error in operation of driver; 5., when speed of a motor vehicle change is unexpected, power of motor and running resistance must be caused to be difficult to mate.6. continue apart from short, grade ability is poor, accommodation is little.
In order to overcome the above problems, present inventor has invented a series of cam self-adapting automatic gear shifting device, utilize running resistance driving cam, reach self shifter and the object according to running resistance Adaptive matching speed of a motor vehicle output torque, there is good effect; Although aforesaid cam self-adapting automatic gear shifting device has above-mentioned advantage, stability and high efficiency comparatively prior art improve a lot, but parts thereof structure is comparatively complicated, speed changer volume is larger, the distortion of long-term operation component obviously, does not have stable support, causes running noises larger, affect running comfort and affect transmission efficiency, thus energy consumption is higher.
Therefore, one is needed to improve above-mentioned cam self-adapting automatic gear shifting device, not only self adaption automatically can carry out shift speed change with travelling when change in resistance does not cut off driving force, solving the little problem that can not meet complex condition road occupation of moment of torsion-rotation speed change; Long-term operation still ensures stable support, reduces running noises, ensures running comfort and improves transmission efficiency, thus reduces energy consumption.
Summary of the invention
In view of this, the object of this invention is to provide a kind of battery-operated motor cycle external rotor electric machine bow bevel-type two grades of self-adapting automatic gear shifts and drive assembly, not only self adaption automatically can carry out shift speed change with travelling when change in resistance does not cut off driving force, solving the little problem that can not meet complex condition road occupation of moment of torsion-rotation speed change; Long-term operation still ensures stable support, reduces running noises, ensures running comfort and improves transmission efficiency, thus reduces energy consumption.
Battery-operated motor cycle external rotor electric machine bow bevel-type of the present invention two grades of self-adapting automatic gear shifts drive assembly, comprise drive motor, casing and coordinate with body pivot and the transmission shaft outputed power, described casing has hangs for side the assembly department being installed on hub side, the mechanical intelligent adaptive rate assembly also comprising slow gear driving mechanism and be arranged on transmission shaft;
Mechanical intelligent adaptive rate assembly comprises the axial external conical sleeve of cirque body, the axial inner conical drogue of cirque body and speed change elastic element;
The axial inner conical drogue inner circle of cirque body is the axial conical surface, and the axial external conical sleeve cylindrical of cirque body is the axial conical surface, and the axial inner conical drogue of cirque body is enclosed within the axial external conical sleeve excircle of cirque body in the mode that the conical surface is worked in coordination and forms the conical surface transmission transmitting fast shelves; Speed change elastic element applies to make the inner conical surface of its male cone (strobilus masculinus) and the axial inner conical drogue of cirque body to fit the pretightening force of transmission to the axial external conical sleeve of cirque body; During described transmission shaft Power output, main transmission cam is secondary applies the axial thrust load contrary with speed change elastic element pretightening force to the axial external conical sleeve of cirque body; The axial external conical sleeve of described cirque body is coated at transmission shaft and is coordinated by the auxiliary driving of main transmission cam with it;
Described slow gear driving mechanism comprises free wheel device and intermediate reduction gear driving mechanism, described free wheel device comprises outer ring, inner ring and rolling element, the engagement space being used for being engaged by rolling element or being separated is formed between described outer ring and inner ring, described outer ring axial end forms ring-shaped depression, and described inner ring is set in rotation with in this ring-shaped depression and engagement space is formed between the inwall of inner ring cylindrical and ring-shaped depression radial outside; Power is inputed to free wheel device outer ring by intermediate reduction gear mechanism by the axial inner conical drogue of described cirque body, and slow shelves transmission of power is exported to the axial external conical sleeve of cirque body by described free wheel device inner ring;
Described drive motor is external rotor electric machine, and the stator of external rotor electric machine is fixed on casing, and external rotor coordinates with the axial inner conical drogue transmission of cirque body.
Further, the external rotor of described drive motor is coordinated by the axial inner conical drogue transmission of transmission bracket and cirque body, and described transmission bracket forms the supporting portion coordinated with body pivot by bearing;
Further, be rotatably assorted and be coated at transmission shaft and be at least provided with an intermediate cam cover, described intermediate cam is overlapped the axial external conical sleeve of one end and cirque body and is coordinated by cam secondary I transmission, and the other end to be coordinated with the transmission of free wheel device inner ring by cam secondary II and is passed to cirque body axis external conical sleeve by keeping off the clutch end of power by intermediate reduction gear driving mechanism slowly; The inner ring of described free wheel device surmounts in Power output sense of rotation and between outer ring, and the axial inner conical drogue of described cirque body is coordinated with the outer ring transmission of free wheel device by intermediate reduction gear driving mechanism;
Further, described free wheel device also comprises Support roller assembly, described supporting roller assembly at least comprises and is parallel to free wheel device axis and support roll spaced with rolling element, described support roll cylindrical contacts with adjacent rolling element cylindrical, and described support roll is to arrange in the movable mode of the circumferencial direction of free wheel device;
Further, described inner ring axially extends the ring-shaped depression of outer ring and extension part inner circle has the inner ring supporting portion that can coordinate with transmission shaft, and described outer ring inner circle has the supporting portion, outer ring that can coordinate with transmission shaft; The cylindrical of described inner ring supporting portion forms external spiral cam I, and intermediate cam is arranged with internal spiral cam I, and this internal spiral cam I complements each other to form spiral prominence wheel set I with external spiral cam I, and described cam secondary II is spiral prominence wheel set I;
Further, described supporting roller assembly also comprises supporting roller support, and described support roll is with between the inwall that can slide and be supported in by supporting roller support around the mode of own axis the ring-shaped depression radial outside of outer ring along free wheel device circumferencial direction and inner ring cylindrical;
Further, described supporting roller support comprises the pushing out ring I and pushing out ring II that arrange corresponding to support roll two ends, described pushing out ring I and pushing out ring II are respectively equipped with the circular groove along pushing out ring I and pushing out ring II circumferencial direction for penetrating for support roll two ends, and described support roll two ends are slidably matched with corresponding circular groove; The ring-shaped depression of described outer ring is axially provided with for the oil-through hole by lubricant oil in bottom, and described pushing out ring I is positioned at the axial bottom of ring-shaped depression and the circular groove bottom land of pushing out ring I is provided with axial hole;
Further, the external spiral cam II that the secondary internal spiral cam II that is provided with by the axial external conical sleeve inner circle of described cirque body of described main transmission cam and transmission shaft are provided with complements each other to form;
Further, transmission bracket one end is connected with the axial inner conical drogue of cirque body and transmission coordinates, one end away from the axial inner conical drogue of cirque body is rotatably assorted and is supported in gearbox casing, the space of described speed change elastic element between transmission bracket and transmission shaft and be coated at transmission shaft.
The invention has the beneficial effects as follows: battery-operated motor cycle external rotor electric machine bow bevel-type of the present invention two grades of self-adapting automatic gear shifts drive assembly, there is all advantages of existing cam self-adapting automatic gear shifting device, if detect driving torque-rotating speed and running resistance-vehicle speed signal according to running resistance, output power of motor and traveling state of vehicle is made to be in optimum Match state all the time, the balance realizing vehicle traction moment and comprehensive running resistance controls, and when not cutting off driving force, self adaption carries out shift speed change automatically with traveling change in resistance; Use under can meeting mountain area, hills and heavy load conditions, make motor load change mild, motor vehicle operate steadily, and improve Security;
Simultaneously, the free wheel device of the slow shelves driving mechanism of this speed changer adopts inner ring to be positioned at the structure of the ring-shaped depression that inner ring is formed, inner ring embeds outer ring from structure, make between inner ring and outer ring, to form the impact mutually supported, inner ring on conventional construction is avoided directly to be supported in the structure of transmission shaft, it also avoid the problem that driving error is exaggerated on free wheel device, not only ensure the global stability of free wheel device, speed changer long-term operation is also made still to ensure stable support, reduce running noises, ensure running comfort and improve transmission efficiency, thus reduction energy consumption, also improve working life and running precision, be applicable to heavy duty and Environmental Conditions at a high speed.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is axial section structural representation of the present invention;
Fig. 2 is overrun clutch structure schematic diagram;
Fig. 3 is free wheel device circumference sectional view.
Embodiment
Fig. 1 is axial section structural representation of the present invention, Fig. 2 is overrun clutch structure schematic diagram, Fig. 3 is free wheel device circumference sectional view, as shown in the figure: battery-operated motor cycle external rotor electric machine bow bevel-type of the present invention two grades of self-adapting automatic gear shifts drive assembly, comprise drive motor 8, casing 3 and be rotatably assorted and the transmission shaft outputed power with casing 3, described casing 3 has hangs for side the assembly department being installed on hub side, the mechanical intelligent adaptive rate assembly also comprising slow gear driving mechanism and be arranged on transmission shaft;
Mechanical intelligent adaptive rate assembly comprises the axial external conical sleeve 6 of cirque body, the axial external conical sleeve 6 of cirque body and speed change elastic element;
Axial external conical sleeve 6 inner circle of cirque body is the axial conical surface, and axial external conical sleeve 6 cylindrical of cirque body is the axial conical surface, and the axial external conical sleeve 6 of cirque body is enclosed within axial external conical sleeve 6 excircle of cirque body in the mode that the conical surface is worked in coordination and forms the conical surface transmission transmitting fast shelves; Speed change elastic element applies to make the inner conical surface of its male cone (strobilus masculinus) and the axial external conical sleeve 6 of cirque body to fit the pretightening force of transmission to the axial external conical sleeve 6 of cirque body; During described transmission shaft Power output, main transmission cam is secondary applies the axial thrust load contrary with speed change elastic element pretightening force to the axial external conical sleeve 6 of cirque body; The axial external conical sleeve 6 of described cirque body is coated at transmission shaft and is coordinated by the auxiliary driving of main transmission cam with it;
Described slow gear driving mechanism comprises free wheel device and intermediate reduction gear driving mechanism, described free wheel device comprises outer ring 15, inner ring 14 and rolling element, the engagement space being used for being engaged by rolling element or being separated is formed between described outer ring 15 and inner ring 14, described outer ring 15 axial end forms ring-shaped depression, and described inner ring 14 is set in rotation with in this ring-shaped depression and engagement space is formed between the inwall of inner ring 14 cylindrical and ring-shaped depression radial outside; Power is inputed to free wheel device outer ring 15 by intermediate reduction gear mechanism by the axial external conical sleeve 6 of described cirque body, and slow shelves transmission of power is exported to the axial external conical sleeve 6 of cirque body by described free wheel device inner ring 14; The rolling element of free wheel device and the structure in engagement space belong to prior art, do not repeat them here; Because outer ring 15 axial end forms ring-shaped depression, its warp-wise sectional view is then formed and is similar to arching, forms radial support after installing inner ring 14 to inner ring 14; Inner ring 14 is adopted to be positioned at the structure of the ring-shaped depression that outer ring 15 is formed, inner ring 14 embeds outer ring 15 from structure, make between inner ring 14 and outer ring 15, to form the impact mutually supported, inner ring 14 on conventional construction is avoided directly to be supported in the structure of transmission shaft, it also avoid the problem that driving error is exaggerated on free wheel device, not only ensure the global stability of free wheel device, also improve working life and running precision, be applicable to heavy duty and Environmental Conditions at a high speed; Intermediate reduction gear driving mechanism can be primary gear speed reducing transmission or other reducing transmission structures, and this intermediate reduction gear driving mechanism can ensure that the axial external conical sleeve 6 of cirque body is passed to the rotating speed of rotating speed lower than the axial external conical sleeve 6 of cirque body of the outer ring 15 of free wheel device; For realizing goal of the invention of the present invention, the inner ring 14 of described free wheel device exports in sense of rotation at power output member and surmounts between outer ring 15; As shown in the figure, described intermediate reduction gear driving mechanism comprises slow shelves jack shaft, be arranged at first slow grade of gear and second slow grade of gear that slow shelves jack shaft coordinates with its transmission, and slow shelves jack shaft is rotatably assorted in mission case 3 by annular bearing with rolling contact; Coordinate drive mechanisms such as () splines to be provided with slow shelves driving gear 13 with axial external conical sleeve 6 transmission of described cirque body, described slow shelves driving gear coordinates with first slow grade of gear 10 engagement driving, outer ring 15 engagement driving of second slow grade of gear 12 and free wheel device; Simple and compact for structure, realize the transmission of power of slow shelves;
Described drive motor is external rotor electric machine, and the stator of external rotor electric machine is fixed on casing 3, and external rotor 9 coordinates with axial external conical sleeve 6 transmission of cirque body.
In the present embodiment, the external rotor 9 of described drive motor is coordinated by axial external conical sleeve 6 transmission of transmission bracket and cirque body, and described transmission bracket forms the supporting portion be rotatably assorted by bearing and casing 3; This structure is beneficial to and forms stable support transmission, and meanwhile, compact structure, is convenient to install and use; As shown in the figure, transmission bracket 5 one end forms the supporting portion be rotatably assorted by bearing and casing 3, and the other end coordinates with axial external conical sleeve 6 transmission of cirque body, and forms support.
In the present embodiment, be rotatably assorted and be coated at transmission shaft and be at least provided with intermediate cam cover 17, described intermediate cam is overlapped the axial external conical sleeve 6 of 17 one end and cirque body and is coordinated by cam secondary I transmission, and the other end to be coordinated with free wheel device inner ring 14 transmission by cam secondary II and is passed to cirque body axis external conical sleeve 6 by keeping off the clutch end of power by intermediate reduction gear driving mechanism slowly; The inner ring 14 of described free wheel device surmounts in Power output sense of rotation and between outer ring 15, and the axial external conical sleeve 6 of described cirque body is coordinated with outer ring 15 transmission of free wheel device by intermediate reduction gear driving mechanism; In the present embodiment, internal spiral cam II 6a that described main transmission cam pair is provided with by axial external conical sleeve 6 inner circle of described cirque body and external spiral cam II 1a that transmission shaft 1 is provided with complements each other to form, form spiral prominence wheel set II, equally, internal spiral cam II and external spiral cam II are spiral prominence race, and embedded ball 18 forms spiral prominence wheel set II; The shaft part transmission that described transmission shaft 1 extends casing 3 coordinates the driving component be provided with for coordinating with hub drive, and as shown in the figure, this driving component is the drive plate structure for being connected with wheel hub; As shown in the figure, axial external conical sleeve 6 outer rim of cirque body coordinates with transmission bracket transmission; When the axial external conical sleeve 6 of cirque body rotates, by spiral prominence wheel set, axis and circumferencial direction two component are produced to transmission shaft 1, wherein circumferencial direction component drives transmission shaft 1 to rotate and outputting power, the mounting structure that axial thrust load is transmitted axle 1 is offset, and its reaction force acts is in the axial external conical sleeve 6 of cirque body and put on speed change elastic element; When axial thrust load reaches setting numerical value, compression is formed to elastic element, the axial external conical sleeve 6 of cirque body is separated with the axial external conical sleeve 6 of cirque body, forms the condition of speed change, belong to the structure of prior art, do not repeat them here; Certainly, spiral prominence wheel set is the preferred structure of the present embodiment, and other cam pair existing also can be adopted to drive, such as end cam etc., but spiral prominence wheel set can make this structure more compact, manufactures, installs and keep in repair more convenient, and helix structure stable drive, uniform force, there is unrivaled stability and smoothness, increase work efficiency further, there is better energy conservation and consumption reduction effects, larger control vehicular discharge, is more suitable for the roadsters such as light two-wheel vehicle and uses.
As shown in the figure, slow shelves driving gear is rotatably assorted and is coated at supporting portion that free wheel device inner ring 14 formed and the axle sleeve position that the axial external conical sleeve 6 of cirque body is formed, the cam auxiliary driving position namely between free wheel device inner ring 14 and the axial external conical sleeve 6 of cirque body; And grade driving gear of waiting a moment coordinates with axial external conical sleeve 6 transmission of cirque body; General structure is simply compact, is beneficial to assembling, is suitable for the structure of inner rotor motor transmission.
In the present embodiment, free wheel device also comprises Support roller assembly, described supporting roller assembly at least comprises and is parallel to free wheel device axis and support roll 20 spaced with rolling element, described support roll cylindrical contacts with adjacent rolling element 21 cylindrical, and described support roll is to arrange in the movable mode of the circumferencial direction of free wheel device; Independent of the supporting roller structure of outer ring 15 and inner ring 14, and adopt servo-actuated structure, for keeping the spacing between rolling element, cancel elastic element and the position limit socket of prior art, avoid directly processing position limit socket on outer ring 15 or inner ring 14, simplify course of working, increase work efficiency, cut down finished cost, ensure processing and assembly precision, increase the service life and ensure transmission effect, and associated components is easily changed after damaging, and reduces maintenance and use cost; Owing to adopting support roll 4 structure, do not adopt independent elastic element, theory unlimited can extend the axial length of free wheel device and rolling element, increase length of action, that is, can need according to load-bearing the axial length increasing free wheel device, thus increase the bearing capacity of free wheel device, and reduce, compared with the free wheel device radial dimension under high bearing capacity, to extend the working life of free wheel device; Simultaneously, because support roll directly contacts with rolling element, when particularly adopting roller construction, the unbalanced possibility that the applying of the point cantact to the roller pretightening force eliminating prior art produces, ensure the spacing balance to rolling element under the prerequisite of longer axial dimension, what make it not depart from inner ring 14 axis is parallel, thus ensures the stable operation of free wheel device, avoids mechanical failure; Adopt back-up roll structure, rolling element generally adopts roller construction;
Described supporting roller assembly also comprises supporting roller support, and described support roll is with between the inwall that can slide and be supported in by supporting roller support around the mode of own axis the ring-shaped depression radial outside of outer ring 15 along free wheel device circumferencial direction and inner ring 14 cylindrical; This structure ensures rotation or the free sliding degree of support roll, thus ensures the trackability of support roll further, makes to form rolling friction when free wheel device runs between rolling element and support roll, reduces power consumption, and makes the stability of free wheel device better;
In the present embodiment, described supporting roller support comprises the pushing out ring I 19 and pushing out ring II 22 that arrange corresponding to support roll two ends, the circular groove along pushing out ring I 19 and pushing out ring II 22 circumferencial direction that described pushing out ring I 19 and pushing out ring II 22 are respectively equipped with for penetrating for support roll 20 two ends (indicates the circular groove 19a on pushing out ring I 19 in figure, circular groove 22a on pushing out ring II 22 and the ring channel structures on pushing out ring I similar and all inside), described support roll two ends are slidably matched with corresponding circular groove, namely one end of support roll penetrates the circular groove on pushing out ring I, the other end penetrates the circular groove on pushing out ring II, adopt the mounting structure of circular groove, structure is simple, and assembling easily, makes the designs simplification of free wheel device further, reduces costs.
In the present embodiment, the ring-shaped depression of described outer ring 15 is axially provided with for the oil-through hole 15a by lubricant oil in bottom, and described pushing out ring I is positioned at the axial bottom of ring-shaped depression and the circular groove bottom land of pushing out ring I is provided with axial hole 19b; Can be introduced and removal of lubricant by oil-through hole, together form grease channel with the opening of ring-shaped depression, realize lubrication and cleaning preferably, thus ensure the running of free wheel device.
In the present embodiment, described engagement space is formed by between the wedge slot of inner ring 14 Excircle machining and the inwall of the ring-shaped depression radial outside of outer ring 15; Simplified processing process, improves work efficiency, and cuts down finished cost.
In the present embodiment, the distribution of the axial hole of the circular groove bottom land of described pushing out ring I 19 is corresponding with support roll and rolling element; Comparatively directly can provide lubrication preferably.
In the present embodiment, the diameter of described support roll 20 is less than 1/3rd of the diameter of rolling element, and rolling element is roller.
In the present embodiment, described inner ring 14 axially extends the ring-shaped depression of outer ring 15 and extension part inner circle has inner ring 14 supporting portion that can coordinate with transmission shaft 1, and described outer ring 15 inner circle has the supporting portion, outer ring 15 that can coordinate with transmission shaft 1; The cylindrical of described inner ring 14 supporting portion forms external spiral cam I 14a, and intermediate cam cover 17 is provided with internal spiral cam I 17a, and this internal spiral cam I complements each other to form spiral prominence wheel set I with external spiral cam I; Namely supporting portion, outer ring 15 and inner ring 14 supporting portion are all set in rotation with transmission shaft 1; The whole free wheel device of this structure, by inner ring 14 and outer ring 15 common support, increases global stability, ensures working life and transmission accuracy; The end of described inner ring 14 supporting portion forms end cam, and the axial external conical sleeve 6 of cirque body to be coordinated with the end cam of inner ring 14 supporting portion by end cam and forms cam pair; As shown in the figure, slow shelves driving gear is coated at the axial external conical sleeve 6 of inner ring 14 supporting portion and cirque body for coordinating with inner ring 14 supporting portion and the axle sleeve position that formed; As shown in the figure, be beneficial to elimination matching gap, ensure quality of fit, meanwhile, be beneficial to and eliminate transmission pause and transition in rhythm or melody sense; In the present embodiment, described cam secondary II is the spiral prominence wheel set I formed between free wheel device inner ring 14 and intermediate cam are overlapped; As shown in the figure, intermediate cam cover 17 is fixedly connected with and is provided with a major diameter axle sleeve, this major diameter axle sleeve inner circle is provided with internal spiral cam I, the cylindrical that free wheel device inner ring 14 axially extends the part of outer ring 15 is provided with the external spiral cam I coordinated with the internal spiral cam I of major diameter axle sleeve patio, certain spiral cam be spiral prominence race and in be provided with ball, to ensure that two spiral cam grooves form engagement; Adopt the drive mechanism of spiral prominence wheel set I, be beneficial to elimination radial clearance, ensure quality of fit, meanwhile, eliminate axial fit clearance, thus be beneficial to elimination transmission pause and transition in rhythm or melody sense.In the present embodiment, inner ring 14 supporting portion of described inner ring 14 is provided with inner ring 14 needle bearing (not indicating in figure) for being rotatably assorted with transmission shaft 1, and the supporting portion, outer ring 15 of described outer ring 15 is provided with outer ring 15 needle bearing 9 for being rotatably assorted with transmission shaft 1; Adopt the structure of needle bearing, be applicable to be installed to transmission shaft 1, whole drive mechanism adaptability is stronger.
In the present embodiment, transmission bracket one end is connected with the axial external conical sleeve 6 of cirque body and transmission coordinates, one end away from the axial external conical sleeve 6 of cirque body is rotatably assorted and is supported in gearbox casing 3, the space of described speed change elastic element between transmission bracket and transmission shaft 1 and be coated at transmission shaft 1; As shown in the figure, transmission shaft 1 is provided with free wheel device outer ring 15, intermediate cam cover, the axial external conical sleeve 6 of cirque body and speed change elastic element (the present embodiment adopts speed change disc spring) by left-to-right, the transmission bracket of tubular structure forms stable support to the axial external conical sleeve 6 of cirque body, ensure transmission accuracy, simultaneously, speed change elastic element is in the space of transmission bracket between transmission shaft 1 and be coated at transmission shaft 1, compact structure.
Above embodiment is optimum structure of the present invention, is not limiting the scope of the present invention; The scheme that Placement adjusts to some extent, and do not affect the realization of this goal of the invention.
The fast gear power transmission line of the present embodiment:
External spiral cam → transmission shaft the outputting power of the internal spiral cam → transmission shaft 1 of the axial external conical sleeve 6 of the axial external conical sleeve 6 → cirque body of the axial external conical sleeve 6 → cirque body of power → cirque body;
Now free wheel device surmounts, and resistance transfer route: internal spiral cam → cirque body axial external conical sleeve 6 → compression speed change butterfly spring of the axial external conical sleeve 6 of external spiral cam → cirque body of transmission shaft → transmission shaft; Transmission shaft is applied axial force by the external spiral cam of transmission shaft to the internal spiral cam of the axial external conical sleeve 6 of cirque body and the axial external conical sleeve 6 of cirque body and compresses speed change butterfly spring, when running resistance is increased to a timing, this axial force speed change butterfly spring, the axial external conical sleeve 6 of cirque body is separated with the axial external conical sleeve 6 of cirque body, power is transmitted by following route, namely keeps off power transmission line slowly:
External spiral cam → transmission shaft the outputting power of the axial external conical sleeve of power → cirque body 6 → keep off slowly driving gear → the first gear gear 10 → slow gear jack shaft 11 → the second internal spiral cam → transmission shaft 1 of the axial external conical sleeve 6 of the axial external conical sleeve 6 → cirque body of outer ring 15 → free wheel device inner ring, 14 → cam pair → cirque body of gear gear 12 → free wheel device slowly slowly.
Slow gear power transmission line is simultaneously also through following route: cam pair → cirque body axial external conical sleeve 6 → compression speed change butterfly spring, prevent from keeping off slowly in transmission process and occur compression speed change butterfly spring reciprocating compression, thus when preventing slow shelves transmission, the axial external conical sleeve 6 of cirque body and the axial external conical sleeve 6 of cirque body are fitted.
Above-mentioned transfer route is had to find out, the present invention operationally, the inner conical surface of the axial external conical sleeve 6 of cirque body and the male cone (strobilus masculinus) of the axial external conical sleeve 6 of cirque body fit tightly under the effect of speed change butterfly spring, form the automatic transmission that keeps certain pressure, and the required pressure of clutch engagement can be adjusted by the axial thickness increasing speed change axle sleeve, reach transmission object, now, power drives the axial external conical sleeve 6 of cirque body, cirque body axial external conical sleeve 6, transmission shaft, and transmission shaft outputting power is rotated counterclockwise; Now keep off free wheel device to be slowly in and to surmount state.
During motor vehicle starting, resistance is greater than driving force, and resistance forces transmission shaft 1 to rotate clockwise several angle, and under the effect of the external spiral cam 1a of transmission shaft 1, the axial external conical sleeve 6 of cirque body compresses speed change butterfly spring; The axial external conical sleeve 6 of cirque body is separated with the axial external conical sleeve 6 of cirque body, synchronously, slow gear free wheel device engagement, power drives the axial external conical sleeve 6, first of cirque body slow gear gear 10, slow gear jack shaft 11, second keeps off gear 12, the outer ring 1515 of free wheel device, inner ring 1431, the axial external conical sleeve 6 of cirque body and transmission shaft 1 slowly, and transmission shaft 1 outputting power is rotated to keep off speed slowly; Therefore, automatically achieve bottom gear and start, shorten the starting time, decrease starting force.Meanwhile, speed change butterfly spring absorbs movement resistor moment energy, stores standby potential energy for recovering gear transferring power soon.
Start successfully, running resistance reduces, when component is reduced to less than the pressure that speed change butterfly spring produces, produce under speed change butterfly spring pressure discharges promotion rapidly because the compression of passive movement resistance, the inner conical surface of the male cone (strobilus masculinus) and the axial external conical sleeve 6 of cirque body that complete the axial external conical sleeve 6 of cirque body recovers to fit tightly state, and slow gear free wheel device is in and surmounts state.
In running process, along with the change self shifter principle of resistance to motion is the same, realizing variable block when not needing to cut off driving force, make whole locomotive operation steady, safe and low consumption, and transfer route being simplified, improving transmission efficiency.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (9)
1. a battery-operated motor cycle external rotor electric machine bow bevel-type two grades of self-adapting automatic gear shifts drive assembly, it is characterized in that: comprise drive motor, casing and coordinate with body pivot and the transmission shaft outputed power, described casing has hangs for side the assembly department being installed on hub side, the mechanical intelligent adaptive rate assembly also comprising slow gear driving mechanism and be arranged on transmission shaft;
Mechanical intelligent adaptive rate assembly comprises the axial external conical sleeve of cirque body, the axial inner conical drogue of cirque body and speed change elastic element;
The axial inner conical drogue inner circle of cirque body is the axial conical surface, and the axial external conical sleeve cylindrical of cirque body is the axial conical surface, and the axial inner conical drogue of cirque body is enclosed within the axial external conical sleeve excircle of cirque body in the mode that the conical surface is worked in coordination and forms the conical surface transmission transmitting fast shelves; Speed change elastic element applies to make the inner conical surface of its male cone (strobilus masculinus) and the axial inner conical drogue of cirque body to fit the pretightening force of transmission to the axial external conical sleeve of cirque body; During described transmission shaft Power output, main transmission cam is secondary applies the axial thrust load contrary with speed change elastic element pretightening force to the axial external conical sleeve of cirque body; The axial external conical sleeve of described cirque body is coated at transmission shaft and is coordinated by the auxiliary driving of main transmission cam with it;
Described slow gear driving mechanism comprises free wheel device and intermediate reduction gear driving mechanism, described free wheel device comprises outer ring, inner ring and rolling element, the engagement space being used for being engaged by rolling element or being separated is formed between described outer ring and inner ring, described outer ring axial end forms ring-shaped depression, and described inner ring is set in rotation with in this ring-shaped depression and engagement space is formed between the inwall of inner ring cylindrical and ring-shaped depression radial outside; Power is inputed to free wheel device outer ring by intermediate reduction gear mechanism by the axial inner conical drogue of described cirque body, and slow shelves transmission of power is exported to the axial external conical sleeve of cirque body by described free wheel device inner ring;
Described drive motor is external rotor electric machine, and the stator of external rotor electric machine is fixed on casing, and external rotor coordinates with the axial inner conical drogue transmission of cirque body.
2. battery-operated motor cycle external rotor electric machine bow bevel-type according to claim 1 two grades of self-adapting automatic gear shifts drive assembly, it is characterized in that: the external rotor of described drive motor is coordinated by the axial inner conical drogue transmission of transmission bracket and cirque body, and described transmission bracket forms the supporting portion coordinated with body pivot by bearing.
3. battery-operated motor cycle external rotor electric machine bow bevel-type according to claim 1 two grades of self-adapting automatic gear shifts drive assembly, it is characterized in that: being rotatably assorted is coated at transmission shaft and is at least provided with an intermediate cam cover, described intermediate cam is overlapped the axial external conical sleeve of one end and cirque body and is coordinated by cam secondary I transmission, and the other end to be coordinated with the transmission of free wheel device inner ring by cam secondary II and is passed to cirque body axis external conical sleeve by keeping off the clutch end of power by intermediate reduction gear driving mechanism slowly; The inner ring of described free wheel device surmounts in Power output sense of rotation and between outer ring, and the axial inner conical drogue of described cirque body is coordinated with the outer ring transmission of free wheel device by intermediate reduction gear driving mechanism.
4. battery-operated motor cycle external rotor electric machine bow bevel-type according to claim 3 two grades of self-adapting automatic gear shifts drive assembly, it is characterized in that: described free wheel device also comprises Support roller assembly, described supporting roller assembly at least comprises and is parallel to free wheel device axis and support roll spaced with rolling element, described support roll cylindrical contacts with adjacent rolling element cylindrical, and described support roll is to arrange in the movable mode of the circumferencial direction of free wheel device.
5. battery-operated motor cycle external rotor electric machine bow bevel-type according to claim 4 two grades of self-adapting automatic gear shifts drive assembly, it is characterized in that: described inner ring axially extends the ring-shaped depression of outer ring and extension part inner circle has the inner ring supporting portion that can coordinate with transmission shaft, and described outer ring inner circle has the supporting portion, outer ring that can coordinate with transmission shaft; The cylindrical of described inner ring supporting portion forms external spiral cam I, and intermediate cam is arranged with internal spiral cam I, and this internal spiral cam I complements each other to form spiral prominence wheel set I with external spiral cam I, and described cam secondary II is spiral prominence wheel set I.
6. battery-operated motor cycle external rotor electric machine bow bevel-type according to claim 5 two grades of self-adapting automatic gear shifts drive assembly, it is characterized in that: described supporting roller assembly also comprises supporting roller support, described support roll is with between the inwall that can slide and be supported in by supporting roller support around the mode of own axis the ring-shaped depression radial outside of outer ring along free wheel device circumferencial direction and inner ring cylindrical.
7. battery-operated motor cycle external rotor electric machine bow bevel-type according to claim 6 two grades of self-adapting automatic gear shifts drive assembly, it is characterized in that: described supporting roller support comprises the pushing out ring I and pushing out ring II that arrange corresponding to support roll two ends, described pushing out ring I and pushing out ring II are respectively equipped with the circular groove along pushing out ring I and pushing out ring II circumferencial direction for penetrating for support roll two ends, and described support roll two ends are slidably matched with corresponding circular groove; The ring-shaped depression of described outer ring is axially provided with for the oil-through hole by lubricant oil in bottom, and described pushing out ring I is positioned at the axial bottom of ring-shaped depression and the circular groove bottom land of pushing out ring I is provided with axial hole.
8. battery-operated motor cycle external rotor electric machine bow bevel-type according to claim 1 two grades of self-adapting automatic gear shifts drive assembly, it is characterized in that: the internal spiral cam II that described main transmission cam pair is provided with by the axial external conical sleeve inner circle of described cirque body and the external spiral cam II that transmission shaft is provided with complement each other to form.
9. battery-operated motor cycle external rotor electric machine bow bevel-type according to claim 1 two grades of self-adapting automatic gear shifts drive assembly, it is characterized in that: transmission bracket one end is connected with the axial inner conical drogue of cirque body and transmission coordinates, one end away from the axial inner conical drogue of cirque body is rotatably assorted and is supported in gearbox casing, the space of described speed change elastic element between transmission bracket and transmission shaft and be coated at transmission shaft.
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| CN201510572233.3A CN105090421A (en) | 2015-09-08 | 2015-09-08 | Bow cone type two-gear self-adaptation automatic variable speed driving assembly for external rotor motor of electric motorcycle |
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| CN201510572233.3A CN105090421A (en) | 2015-09-08 | 2015-09-08 | Bow cone type two-gear self-adaptation automatic variable speed driving assembly for external rotor motor of electric motorcycle |
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| CN201510572233.3A Pending CN105090421A (en) | 2015-09-08 | 2015-09-08 | Bow cone type two-gear self-adaptation automatic variable speed driving assembly for external rotor motor of electric motorcycle |
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| CN110985627A (en) * | 2019-12-04 | 2020-04-10 | 西南大学 | Mechanical double-overrunning self-adaptive automatic transmission adopting multi-row floating overrunning clutch |
| CN111043256A (en) * | 2019-12-04 | 2020-04-21 | 西南大学 | Full-mechanical self-adaptive automatic speed change system |
| CN112901728A (en) * | 2019-12-04 | 2021-06-04 | 西南大学 | Double-overrunning self-adaptive automatic speed change system adopting multi-row floating overrunning clutch |
| CN112901729A (en) * | 2019-12-04 | 2021-06-04 | 西南大学 | Self-adaptive automatic speed change assembly adopting multi-row combined overrunning clutch |
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| CN112901729A (en) * | 2019-12-04 | 2021-06-04 | 西南大学 | Self-adaptive automatic speed change assembly adopting multi-row combined overrunning clutch |
| CN110985627B (en) * | 2019-12-04 | 2022-03-04 | 西南大学 | Mechanical double-overrunning self-adaptive automatic transmission adopting multi-row floating overrunning clutch |
| CN112901729B (en) * | 2019-12-04 | 2022-04-08 | 西南大学 | Self-adaptive automatic speed change assembly adopting multi-row combined overrunning clutch |
| CN112901728B (en) * | 2019-12-04 | 2022-04-12 | 西南大学 | Double-overrunning self-adaptive automatic speed change system adopting multi-row floating overrunning clutch |
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Application publication date: 20151125 |