CN105156663A - Inner rotor motor wave-shaped friction transmission self-adaption automatic variable speed drive assembly of electric motor car - Google Patents
Inner rotor motor wave-shaped friction transmission self-adaption automatic variable speed drive assembly of electric motor car Download PDFInfo
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- CN105156663A CN105156663A CN201510572195.1A CN201510572195A CN105156663A CN 105156663 A CN105156663 A CN 105156663A CN 201510572195 A CN201510572195 A CN 201510572195A CN 105156663 A CN105156663 A CN 105156663A
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- transmission
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- friction
- inner rotor
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Classifications
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
- F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
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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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
- F16H2057/02065—Gearboxes for particular applications for vehicle transmissions for motorcycles or squads
Abstract
The invention discloses an inner rotor motor wave-shaped friction transmission self-adaption automatic variable speed drive assembly of an electric motor car. The inner rotor motor wave-shaped friction transmission self-adaption automatic variable speed drive assembly comprises an inner rotor drive motor, a box body and a transmission shaft and further comprises a slow gear transmission mechanism and a mechanical intelligent self-adaption variable speed assembly which is arranged on the transmission shaft. A wave-shaped friction surface friction transmission pair is adopted for the friction surface of a drive friction disc and the friction surface of a driven friction disc of the mechanical intelligent self-adaption variable speed assembly. A separation and combination structure is formed through the friction discs, and the automatic variable speed drive assembly has the advantages of being flexible in reaction and small in axial size; meanwhile, the structure that the radial sections of the friction surfaces are in a wave shape, and annular protrusions and annular grooves are embedded to one another is adopted, joint of the friction surfaces is scattered, guarantee of the coaxiality of the drive friction disc and the driven friction disc is facilitated, increase of the friction surfaces is further facilitated, and it is guaranteed that good transmission is kept under the condition of limited elastic force; guarantee of sensitivity of separation and combination is further facilitated, transmission accuracy is improved, and the automatic variable speed drive assembly is applicable to the field of electric vehicles.
Description
Technical field
The present invention relates to a kind of vehicle transmission, particularly a kind of battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift drives 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; Further, speed shelves engage, separating mechanism axial engagement face stroke is long, and Detaching and Lapping is thorough not, and be unfavorable for improving transmission accuracy, long period can affect overall form and position tolerance after using, thus affects the stability of transmission.
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; Change the present situation that speed shelves engage, separating mechanism axial engagement face stroke is long, Detaching and Lapping fast and thoroughly, is beneficial to raising transmission accuracy, and long period still can ensure overall form and position tolerance after using, thus ensures the stability of transmission.
Summary of the invention
In view of this, the object of this invention is to provide a kind of side-hanging type self-adapting automatic gear shift device of waveform friction driving, 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; Change the present situation that speed shelves engage, separating mechanism axial engagement face stroke is long, Detaching and Lapping fast and thoroughly, is beneficial to raising transmission accuracy, and long period still can ensure overall form and position tolerance after using, thus ensures the stability of transmission.
Battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift of the present invention drives assembly, comprise drive motor, casing and coordinate with body pivot and the transmission shaft outputed power, the mechanical intelligent adaptive rate assembly also comprising slow gear driving mechanism and be arranged on transmission shaft;
Mechanical intelligent adaptive rate assembly comprises driven friction disk, active friction disk and speed change elastic element;
Active friction disk and driven friction disk form the disk-type friction transmission transmitting fast shelves in the mode that rubbing surface cooperatively interacts, the mode adopting annular protrusion radially arranged side by side to embed circular groove radially arranged side by side between the rubbing surface of active friction disk and the rubbing surface of driven friction disk forms the disk-type friction transmission that transmits fast shelves and annular protrusion and circular groove make the radial cross section of the rubbing surface of active friction disk and the rubbing surface of driven friction disk be waveform; Speed change elastic element applies to make driven friction disk and active friction disk to fit the pretightening force of transmission; Described driven friction disk is coated at transmission shaft and is coordinated by the auxiliary driving of main transmission cam with it; Described drive motor is inner rotor motor, and the stator of inner rotor motor is fixed on casing, and internal rotor coordinates with active friction disk transmission.
Further, the internal rotor of described drive motor is coordinated with active friction disk transmission by transmission bracket, 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 described active friction disk, and described free wheel device inner ring exports slow shelves transmission of power to driven friction disk;
Further, speed change elastic element applies to make itself and active friction disk to fit the pretightening force of transmission to driven friction disk; 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 driven friction disk;
Further, free wheel device inner ring and driven friction disk are coordinated by cam auxiliary driving and are passed to driven friction disk by keeping off the clutch end of power by intermediate reduction gear driving mechanism slowly;
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;
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 internal spiral cam that described main transmission cam pair is provided with by described driven friction disk integrated driven disc axle sleeve inner circle and the internal spiral cam that transmission shaft is provided with complement each other to form, and described active friction disk is mode can be coated at driven disc axle sleeve formation disk-type friction transmission in axial sliding;
Further, transmission bracket one end and active friction disk are connected to form transmission and coordinate, and the one end away from active friction disk 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 inner rotor motor waveform friction driving self-adapting automatic gear shift of the present invention drives 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; Adopt friction disk to form the structure being separated and combining, there is sensitive advantage, and axial dimension is less; Simultaneously, adopt the structure that the annular protrusion of the radial cross section undulate of rubbing surface and annular groove are fitted together to mutually, the joint in Decentralized Friction face, not only be beneficial to the coaxality ensureing active friction disk and driven friction disk, also be beneficial to increase rubbing surface, ensure to keep good transmission under limited elastic force condition; Also be beneficial to ensure be separated, engage sensitive, improve transmission accuracy, be applicable to electric automobiles.
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 inner rotor motor waveform friction driving self-adapting automatic gear shift of the present invention drives assembly, two grades of self-adapting automatic gear shifts of inner rotor motor of the present invention drive assembly, comprise drive motor, casing and coordinating with body pivot and the transmission shaft 1 outputed power, described casing has hangs for side the assembly department being installed on hub side, or for directly forming the assembly department of wheel hub, do not repeat them here, the mechanical intelligent adaptive rate assembly also comprising slow gear driving mechanism and be arranged on transmission shaft 1,
Mechanical intelligent adaptive rate assembly comprises driven friction disk 6, active friction disk 9 and speed change elastic element;
Active friction disk 9 and driven friction disk 6 form the disk-type friction transmission transmitting fast shelves in the mode that rubbing surface cooperatively interacts, the mode adopting annular protrusion radially arranged side by side to embed circular groove radially arranged side by side between the rubbing surface of active friction disk 9 and the rubbing surface of driven friction disk 6 forms the disk-type friction transmission that transmits fast shelves and annular protrusion and circular groove make the radial cross section of the rubbing surface of active friction disk 9 and the rubbing surface of driven friction disk 6 be waveform; Speed change elastic element applies to make driven friction disk 6 and active friction disk 9 to fit the pretightening force of transmission; Described driven friction disk 6 is coated at transmission shaft 1 and is coordinated by the auxiliary driving of main transmission cam with it; Disk-type friction transmission refers to be formed between driven friction disk 6, active friction disk 9 and can be separated or the structure of couple drive; In the present invention, the rubbing surface of active friction disk 9 and the rubbing surface of driven friction disk 6 are respectively equipped with corresponding annular protrusion (around active friction disk 9 and driven friction disk 6 axis) and annular groove, and side annular protrusion (active friction disk 9) is relative with the annular groove (driven friction disk 6) of opposite side and form embedded structure when using, reaches joint and rub and the effect be separated; The cross section of annular protrusion and annular groove can be triangle, trapezoidal, arc, all can realize object of the present invention, and the present embodiment adopts arc; Do not repeat them here; Speed change elastic element applies to make driven friction disk 6 and active friction disk 9 to fit the pretightening force of transmission; Described driven friction disk 6 is coated at transmission shaft 1 and is coordinated by the auxiliary driving of main transmission cam with it; Described drive motor is inner rotor motor, and the stator of inner rotor motor is fixed on casing, and internal rotor coordinates with active friction disk 9 transmission.
In the present embodiment, the internal rotor of described drive motor is coordinated with active friction disk 9 transmission by transmission bracket, and certainly, transmission bracket forms the supporting portion coordinated with body pivot by bearing, 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 one end forms the supporting portion coordinated with body pivot by bearing, and the other end coordinates with active friction disk 9 transmission, and forms support, 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 described active friction disk 9, and described free wheel device inner ring 14 exports slow shelves transmission of power to driven friction disk 6, 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 1, 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 active friction disk 9 is passed to the rotating speed of rotating speed lower than active friction disk 9 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 11 and second slow grade of gear 12 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 mechanism such as spline) to be provided with slow shelves driving gear with the external toothing transmission of described active friction disk 9, described slow shelves driving gear coordinates with first slow grade of meshed transmission gear, outer ring 15 engagement driving of second slow grade of gear and free wheel device, simple and compact for structure, realize the transmission of power of slow shelves, the free wheel device of the slow shelves driving mechanism of this speed changer adopts inner ring 14 to be positioned at the structure of the ring-shaped depression that inner ring 14 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 1, 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.
In the present embodiment, speed change elastic element applies to make itself and active friction disk 9 to fit the pretightening force of transmission to driven friction disk 6; During described transmission shaft 1 Power output, main transmission cam pair applies the axial thrust load contrary with speed change elastic element pretightening force to driven friction disk 6.
In the present embodiment, free wheel device inner ring 14 and driven friction disk 6 are coordinated by cam auxiliary driving and are passed to driven friction disk 6 by keeping off the clutch end of power by intermediate reduction gear driving mechanism slowly, certainly, centre also can arrange intermediate cam cover and form multiple cam auxiliary driving; As shown in the figure, the internal spiral cam that described main transmission cam pair is provided with by described driven friction disk 6 integrated driven disc axle sleeve inner circle and the external spiral cam that transmission shaft 1 is provided with complement each other to form, and described active friction disk 9 is mode can be coated at driven disc axle sleeve formation disk-type friction transmission in axial sliding; Simple and compact for structure, be easy to install, and be beneficial to stable drive; When slow shelves form transmission, utilize the axial thrust load compression elastic element of cam pair, main transmission cam pair to form locking, and form slow shelves transmission; In the present embodiment, the internal spiral cam that described main transmission cam pair is provided with by described driven friction disk 6 inner circle and the external spiral cam that transmission shaft 1 is provided with complement each other to form, and form spiral prominence wheel set; The shaft part transmission that described transmission shaft 1 extends casing coordinates the driving component 2 be provided with for coordinating with hub drive, and as shown in the figure, this driving component 2 is the drive plate structure for being connected with wheel hub; As shown in the figure, active friction disk 9 outer rim coordinates with transmission bracket transmission; Described driven friction disk 6 is coated at transmission shaft 1 and inner circle is provided with internal spiral cam 10, and transmission shaft 1 is provided with the external spiral cam 16 matched with internal spiral cam and jointly forms spiral prominence wheel set; Spiral prominence wheel set is the worm structure cooperatively interacted, and the two is spiral chute, and embedded ball 17 forms meshing transmission structure; When driven friction disk 6 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 driven friction disk 6 and put on speed change elastic element; When axial thrust load reaches setting numerical value, compression is formed to elastic element, driven friction disk 6 is separated with active friction disk 9, form 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 be rotatably assorted be coated at free wheel device inner ring 14 formed supporting portion and driven friction disk 6 formed axle sleeve position, the cam auxiliary driving position namely between free wheel device inner ring 14 and driven friction disk 6; And grade driving gear of waiting a moment coordinates with active friction disk 9 transmission; 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 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; Independent of support roll 19 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 ensure the trackability of support roll 19 further, make to form rolling friction when free wheel device runs between rolling element and support roll, reduce power consumption, and make the stability of free wheel device better;
In the present embodiment, described supporting roller support comprises the pushing out ring I 18 and pushing out ring II 21 that arrange corresponding to support roll two ends, the circular groove along pushing out ring I 18 and pushing out ring II 21 circumferencial direction that described pushing out ring I 18 and pushing out ring II 21 are respectively equipped with for penetrating for support roll two ends (indicates the circular groove 18a on pushing out ring I 18 in figure, circular groove 21a on pushing out ring II 21 and the ring channel structures on pushing out ring I 18 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 18, the other end penetrates the circular groove on pushing out ring II 21, 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 by lubricant oil in bottom, and described pushing out ring I 18 is positioned at the axial bottom of ring-shaped depression and the circular groove bottom land of pushing out ring I 18 is provided with axial hole; 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 18b of the circular groove 18a bottom land of described pushing out ring I 18 is corresponding with support roll 19 and rolling element 20; Comparatively directly can provide lubrication preferably.
In the present embodiment, the diameter of described support roll 19 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; 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 driven friction disk 6 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 inner ring 14 supporting portion and driven friction disk 6 for coordinating with inner ring 14 supporting portion and the axle sleeve position formed; As shown in the figure, be beneficial to elimination matching gap, ensure quality of fit, meanwhile, 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 (representing 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 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 to form transmission with active friction disk 9 and coordinates, one end away from active friction disk 9 is rotatably assorted and is supported in gearbox casing, 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, driven friction disk 6 and speed change elastic element (the present embodiment adopts speed change disc spring) by left-to-right, transmission bracket forms stable support to active friction disk 9, 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 16 → transmission shaft 1 outputting power of the internal spiral cam 10 → transmission shaft 1 of power → active friction disk 9 → driven friction disk 6 → driven friction disk 6;
Now free wheel device surmounts, and resistance transfer route: internal spiral cam → driven friction disk 6 → compression speed change butterfly spring of the external spiral cam → driven friction disk 6 of transmission shaft 1 → transmission shaft 1; Transmission shaft 1 applies axial force by the external spiral cam of transmission shaft 1 to the internal spiral cam of driven friction disk 6 and driven friction disk 6 and compresses speed change butterfly spring, when running resistance is increased to a timing, this axial force speed change butterfly spring, active friction disk 9 is separated with driven friction disk 6, power is transmitted by following route, namely keeps off power transmission line slowly:
Power → active friction disk 9 → keep off slowly driving gear → the first keeps off gear → keep off external spiral cam 16 → transmission shaft 1 outputting power that jack shaft → the second keeps off the internal spiral cam 10 → transmission shaft 1 of outer ring 15 → free wheel device inner ring, 14 → cam pair → driven friction disk 6 → driven friction disk 6 of gear → free wheel device slowly slowly slowly.
Slow gear power transmission line is simultaneously also through following route: cam pair → driven friction disk 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, active friction disk 9 and driven friction disk 6 are fitted.
Above-mentioned transfer route is had to find out, the present invention operationally, active friction disk 9 and driven friction disk 6 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 active friction disk 9, driven friction disk 6, transmission shaft 1, and transmission shaft 1 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, driven friction disk 6 compresses speed change butterfly spring; Driven friction disk 6 is separated with active friction disk 9, synchronously, slow gear free wheel device engagement, power drive active friction disk 9, first slowly gear gear 11, keep off jack shaft, second outer ring 15 of gear gear 12, free wheel device, inner ring 14, driven friction disk 6 and transmission shaft 1 slowly slowly, 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, complete driven friction disk 6 and active friction disk 9 to recover to fit tightly state, 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 (10)
1. a battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift drives assembly, it is characterized in that: comprise drive motor, casing and coordinate with body pivot and the transmission shaft outputed power, the mechanical intelligent adaptive rate assembly also comprising slow gear driving mechanism and be arranged on transmission shaft;
Mechanical intelligent adaptive rate assembly comprises driven friction disk, active friction disk and speed change elastic element;
Active friction disk and driven friction disk form the disk-type friction transmission transmitting fast shelves in the mode that rubbing surface cooperatively interacts, the mode adopting annular protrusion radially arranged side by side to embed circular groove radially arranged side by side between the rubbing surface of active friction disk and the rubbing surface of driven friction disk forms the disk-type friction transmission that transmits fast shelves and annular protrusion and circular groove make the radial cross section of the rubbing surface of active friction disk and the rubbing surface of driven friction disk be waveform; Speed change elastic element applies to make driven friction disk and active friction disk to fit the pretightening force of transmission; Described driven friction disk is coated at transmission shaft and is coordinated by the auxiliary driving of main transmission cam with it; Described drive motor is inner rotor motor, and the stator of inner rotor motor is fixed on casing, and internal rotor coordinates with active friction disk transmission.
2. battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift according to claim 1 drives assembly, it is characterized in that: the internal rotor of described drive motor is coordinated with active friction disk transmission by transmission bracket; 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 described active friction disk, and described free wheel device inner ring exports slow shelves transmission of power to driven friction disk.
3. battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift according to claim 1 drives assembly, it is characterized in that: speed change elastic element applies to make itself and active friction disk to fit the pretightening force of transmission to driven friction disk; 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 driven friction disk.
4. battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift according to claim 3 drives assembly, it is characterized in that: free wheel device inner ring and driven friction disk are coordinated by cam auxiliary driving and be passed to driven friction disk by keeping off the clutch end of power by intermediate reduction gear driving mechanism slowly.
5. battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift according to claim 4 drives 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.
6. battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift according to claim 5 drives 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.
7. battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift according to claim 6 drives 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.
8. battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift according to claim 7 drives 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.
9. battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift according to claim 1 drives assembly, it is characterized in that: the internal spiral cam that described main transmission cam pair is provided with by described driven friction disk integrated driven disc axle sleeve inner circle and the internal spiral cam that transmission shaft is provided with complement each other to form, described active friction disk is mode can be coated at driven disc axle sleeve formation disk-type friction transmission in axial sliding.
10. battery-operated motor cycle inner rotor motor waveform friction driving self-adapting automatic gear shift according to claim 2 drives assembly, it is characterized in that: described transmission bracket one end is connected to form transmission with active friction disk and coordinates, one end away from active friction disk 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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| CN201510572195.1A CN105156663A (en) | 2015-09-08 | 2015-09-08 | Inner rotor motor wave-shaped friction transmission self-adaption automatic variable speed drive assembly of electric motor car |
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| CN201510572195.1A CN105156663A (en) | 2015-09-08 | 2015-09-08 | Inner rotor motor wave-shaped friction transmission self-adaption automatic variable speed drive assembly of electric motor car |
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