CN101244747B - Automatic speed changing electric driven hub - Google Patents
Automatic speed changing electric driven hub Download PDFInfo
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- CN101244747B CN101244747B CN200810069420XA CN200810069420A CN101244747B CN 101244747 B CN101244747 B CN 101244747B CN 200810069420X A CN200810069420X A CN 200810069420XA CN 200810069420 A CN200810069420 A CN 200810069420A CN 101244747 B CN101244747 B CN 101244747B
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Abstract
The invention discloses an automatic speed-change electrical wheel hub, comprising a left wheel hub frame, a right wheel hub frame, a housing, a motor, a transmission shaft, a wheel, a brake device arranged on the transmission shaft, and a self-adaptive two-speed automatic speed-change assembly driven by the motor rotor via a transmission device. The transmission device is arranged in the intracavity of the motor stator. The automatic speed-change electrical wheel hub has the advantages that the motor transmission device is arranged reasonably, the consumption of the manufacture materials of the housing is lowered, the whole wheel hub has a compact size and a light weight, the manufacturing cost is reduced, and the invention can enable the output power of the motor and the driving status of vehicles to always be in an optimum matching status to achieve the balancing control of the driving moment of the vehicles and the synthesized driving resistance; the speed change can be operated automatically along with the change of the driving resistance by the self adaptive without cutting off the driving force, so that the invention is beneficial to the energy-efficiency of the vehicles and the mechanical power equipment, and can satisfy the usage under the conditions of mountain areas, hills and heavy loads; and the transmission of the invention has a light weight and a compact structure.
Description
Technical field
The present invention relates to the wheel hub of a kind of self-propelled vehicle or mechanical and power equipment, particularly a kind of automatic speed-changing electric wheel hub.
Background technology
In the prior art, the wheel hub of battery-driven car such as battery-operated motor cycle, Electrical Bicycle all designs the position that motor is installed, and design has the driving system of a series of complexity, therefore, the casing volume is bigger, has increased the material of making casing, has also increased the weight of wheel hub simultaneously, therefore also increase the manufacturing cost of wheel hub, also increased consumption of power.Consider that the bending that reduces line with guardwire, needs box house that bigger space is arranged when having again, also increased the casing volume, increased manufacturing cost and weight exactly owing to cloth power lead and signal wire (SW).Battery-driven cars such as existing battery-operated motor cycle, Electrical Bicycle all are by governor handle or acceleration pedal direct control current control speed basically, or adopt manual mechanical automatic transmission mode to realize speed change.The operation of navigating mate is depended in the operation of handle or acceleration pedal fully, usually can cause operation and garage's situation not to match, and causes the engine installation fluctuation of service.
Self-propelled vehicle need realize the intellectuality of electric current control control, and load, moment of torsion or rotating speed be important parameters.Generally adopt multiple sensors to obtain correlation parameter respectively to the measurement of this index, judge again.The patent No. is that the utility model patent that ZL200510009329.0, name are called " motor bike Hall differential type auto-adaptive driving and sensing device " discloses a kind of auto-adaptive driving and sensing device, this device can be when participating in transmission directly, synchronous detection moment of torsion and speed signal, for the motor bike controller provides data, make control system possess adaptive function.But this device does not possess the self shifter function.
By rider under the situation of not knowing resistance to motion, only rule of thumb operate the transmission system of control, have following problem unavoidably: 1. when startup, upward slope and heavy load, since resistance to motion increase, forcing motor speed to descend works in the low efficiency district, cause battery to increase under the supply current operating mode, motor rotation blockage, heating even stop operating.2. owing to there is not mechanical transmission to adjust moment of torsion and speed, can only promote the use of, can not satisfy under mountain area, hills and the heavy load conditions and use, dwindle range of use at region of no relief; 3. drive wheel place installing space is little, has installed to be difficult to hold automatic transmission with hydraulic torque converter and other up-to-date technology behind the motor again; 4. do not possess adaptive function, can not detect, revise and get rid of the operation mistake of chaufeur automatically; 5. change when unexpected in the speed of a motor vehicle, motor is under the unstable state operating mode turns round, must cause power of motor and resistance to motion to be difficult to coupling.6. continuing, distance is short, hill climbing ability is poor, and applicable area is little.
Therefore; need transform electric vehicle hub; can reduce volume and weight; installation footprint is less; save manufacturing cost, less consumption of power, and effective guardwire and improve lead service life; self adaptation is not cut off with the change in resistance of travelling under the situation of propulsive effort and is carried out shift speed change automatically, solves the little problem that can not satisfy road usage under the complex conditions of moment of torsion-rotation speed change.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of automatic speed-changing electric wheel hub, can reduce volume and weight, installation footprint is less, saves manufacturing cost, less consumption of power, and effective guardwire and improve lead service life, can detect driving torque-rotating speed and resistance to motion-vehicle speed signal according to resistance to motion, make power plant horsepower output and traveling state of vehicle be in the optimum matching state all the time, realize the balance control of vehicular drive moment and comprehensive resistance to motion; Can carry out shift speed change automatically with the change in resistance of travelling not needing to cut off under the situation of propulsive effort self adaptation, can satisfy under mountain area, hills and the heavy load conditions and use, the speed of a motor vehicle changes steady slow; Simultaneously, little, in light weight, the compact conformation of change-speed box volume of the present invention is suitable for wheel hub and installs.
Automatic speed-changing electric wheel hub of the present invention, comprise the left wheel hub frame, right wheel hub frame, casing, motor, transmission shaft, wheel and the brake gear that is arranged on the transmission shaft, described left wheel hub frame is captiveed joint with casing with right wheel hub frame, transmission shaft is arranged in the casing and its normal-running fit, the part of transmission shaft is stretched out casing and wheel heavy keying fit, left wheel hub frame and right wheel hub frame divide the Train Wheel left and right sides, also comprise the self-adaption two-gear automatic speed changing assembly that is arranged on the transmission shaft, described self-adaption two-gear automatic speed changing assembly is the taper disc type self-adaption two-gear automatic speed changing assembly, described taper disc type self-adaption two-gear automatic speed changing assembly is driven by rotor by driving device, described driving device comprises initiatively drive sleeve and driven drive sleeve, described active drive sleeve is captiveed joint with rotor, driven drive sleeve is enclosed within transmission shaft excircle and its normal-running fit and drives the self-adaption two-gear automatic speed changing assembly, initiatively drive sleeve be enclosed within driven drive sleeve excircle and with its heavy keying fit; Be vertically arranged with the fixing bucket of motor stator in the described casing, motor stator is enclosed within motor stator fixing bucket excircle and its heavy keying fit, and described active drive sleeve and driven drive sleeve are arranged on fixedly barrel cavity of motor stator.
Further, the corresponding end face of described casing with motor stator be provided with power cord location corresponding power lead hole and with the corresponding signal wire (SW) of signal wire (SW) extraction location hole, corresponding with power lead hole and signal wire (SW) hole at casing end face arranged outside cavity, described cavity sidewalls and casing are wholely set, cavity is provided with removable end cap, end cap is provided with comprehensive fairlead, and described power lead and signal wire (SW) are drawn by comprehensive fairlead;
Further, also comprise change gear shaft, described change gear shaft and transmission shaft be arranged in parallel; On the described change gear shaft speed-change gear is set;
A. speed-change gear comprises one-level variable gear and the two stage speed change gear that is arranged on the change gear shaft; Carry out transmission by clutch transmission between described one-level variable gear and the two stage speed change gear;
B. the taper disc type self-adaption two-gear automatic speed changing assembly comprises speed change spring cone disk type adaptive power-transfer clutch and keeps off overriding clutch slowly;
I. speed change spring cone disk type adaptive power-transfer clutch comprises and one-level variable gear ingear inner conical surface clutch gear ring, male cone (strobilus masculinus) drive sleeve, described transmission shaft and speed change spring;
Described transmission shaft is the uniform camshaft that is processed with at least one spiral prominence race on the excircle, and it is opposite with the camshaft hand of rotation that the expansion direction of spiral prominence race is seen from left to right; Uniform being processed with and the identical radial direction through hole of spiral prominence race quantity on the male cone (strobilus masculinus) drive sleeve circumference, male cone (strobilus masculinus) drive sleeve free-running fit is enclosed within the camshaft excircle, and pin inserts the spiral prominence race of camshaft by radial direction through hole; Inner conical surface clutch gear ring is enclosed within male cone (strobilus masculinus) drive sleeve excircle, and the inner conical surface of inner conical surface clutch gear ring and the male cone (strobilus masculinus) of male cone (strobilus masculinus) drive sleeve fit tightly under the speed change action of the spring;
Described rotor is captiveed joint with driven drive sleeve by drive sleeve initiatively, initiatively drive sleeve be enclosed within driven drive sleeve excircle and with its heavy keying fit, active drive sleeve and driven drive sleeve are arranged on fixedly barrel cavity of motor stator; The described active drive sleeve position of matching with driven drive sleeve is an inner conical surface, the driven drive sleeve position of matching with drive sleeve initiatively is a male cone (strobilus masculinus), described active drive sleeve and driven drive sleeve circumferencial direction are by the flat key heavy keying fit, axially by the conical surface and the push bolt heavy keying fit that is spun on the driven drive sleeve; Driven drive sleeve is connected with inner conical surface clutch gear ring relative fixed;
II. keep off overriding clutch slowly and speed change spring cone disk type adaptive power-transfer clutch is set up in parallel, comprise with the two stage speed change gear mesh keep off slowly the overdrive clutch gear ring, with keep off the overdrive clutch gear ring slowly and keep surmounting the overdrive clutch roller of retaining slowly that meshes contact condition and keeping off the overriding clutch inner ring slowly;
Slowly keep off overriding clutch inner ring free-running fit and be enclosed within the transmission shaft excircle, keep off overriding clutch inner ring cylindrical slowly and withstand and keep off the overdrive clutch roller slowly;
The male cone (strobilus masculinus) drive sleeve with keep off radially heavy keying fit of overriding clutch inner ring slowly;
Further, described clutch transmission comprises holddown spring, Drive ratchet, disengaging yoke, declutch shift shaft, return torsion spring and is fixedly installed on driven ratchet on the two stage speed change gear face, described change gear shaft and casing normal-running fit, described one-level variable gear radially heavy keying fit is enclosed within on the change gear shaft, two stage speed change gear clearance engage sleeves is on change gear shaft, and two stage speed change gear nominal diameter is less than the one-level variable gear; Drive ratchet radially heavy keying fit is enclosed within on the change gear shaft under the effect of holddown spring and driven ratchet engaged; Described Drive ratchet excircle is provided with circumferential groove in its end portion, disengaging yoke one end is from radially stretching into circumferential groove in its end portion, the other end and declutch shift shaft heavy keying fit, declutch shift shaft can rotate and perpendicular to change gear shaft relative to casing, and the return torsion spring is arranged on and acts on disengaging yoke on the change gear shaft and make it do return behind the separating action; Described disengaging yoke setting prevents the limiting stopper of disengaging yoke and circumferential groove in its end portion friction;
Further, described speed change spring is a butterfly spring group, and in the cavity that forms between driven drive sleeve and camshaft, the right side is near male cone (strobilus masculinus) drive sleeve left side, and the left side is near on the setscrew nut that is spun on the camshaft;
Further, the described overriding clutch that keeps off slowly comprises that also axial cross section is the slow gear shaft retainer ring in a left side and the right slow gear shaft retainer ring of T shape; Slowly keep off overriding clutch inner ring excircle and be provided with and keep off the inner ring annular boss slowly, inner ring annular boss cylindrical withstands and keeps off the overdrive clutch roller slowly; Slowly keeping off overriding clutch is the out star wheel overriding clutch, keeps off the round groove that is embedded with voussoir in the overdrive clutch gear ring slowly, and the spring that keeps off the overdrive clutch roller slowly is near voussoir;
Slow gear shaft retainer ring in a left side and right slow gear shaft retainer ring are arranged at the inner ring annular boss that keeps off the overriding clutch inner ring slowly respectively, keep off overdrive clutch roller and keep off the overdrive clutch gear ring left and right sides slowly slowly in the inside mode of T shape end face, slowly keep off overdrive clutch gear ring, the slow gear shaft retainer ring in a left side and right slow gear shaft retainer ring the relative pin-and-hole of radial position is set respectively, insert set pin in the pin-and-hole;
Circle and keeping off slowly is positioned at the inner ring annular boss left and right sides and is provided with respectively that a left side keeps off the speed change roller slowly and the right side keeps off the speed change roller slowly in slow gear shaft retainer ring in a left side and the right slow gear shaft retainer ring between the overriding clutch inner ring cylindrical;
Further, described spiral prominence race be six uniform on the circumference of camshaft, cross-sectional plane is a rectangle;
Further, described casing is captiveed joint with the left wheel hub frame, and brake gear is provided with outside support, and outside support is captiveed joint with right wheel hub frame, and camshaft stretches out casing part and wheel heavy keying fit, and with the outside support of brake gear in the circle normal-running fit;
Further, mesh by spline or flat being good between described wheel inner ring and the camshaft cylindrical; Male cone (strobilus masculinus) drive sleeve and keeping off slowly between the overriding clutch inner ring is all passed through spline engagement between one-level variable gear and Drive ratchet and the change gear shaft; Driven drive sleeve is respectively arranged with the relative column pin hole in position with inner conical surface clutch gear ring, and passing through radially between the two, transmission pin connects;
Further, described driven drive sleeve left end passes through the 7th radial bearing normal-running fit by second radial bearing and camshaft normal-running fit between right-hand member and the male cone (strobilus masculinus) drive sleeve excircle; Described camshaft left end cylindrical cooperates with the casing left side by first radial bearing, and camshaft right-hand member cylindrical cooperates with the casing right side by the 5th radial bearing; Change gear shaft left end cylindrical cooperates with casing by the 3rd radial bearing, and change gear shaft right-hand member cylindrical cooperates with casing by the 4th radial bearing; Circle cooperates by the 6th radial bearing with the camshaft right-hand member in the brake gear support; Be positioned on the camshaft and keep off the overriding clutch right-hand axis slowly, keep off slowly between overriding clutch inner ring and the locating piece surface bearing is set to fixedly installing locating piece.
The invention has the beneficial effects as follows: automatic speed-changing electric wheel hub driving device of the present invention is arranged on the motor stator inner chamber, and transmission gear for electric motor of the present invention is provided with rationally, saves the consumption of casing manufactured materials, and whole wheel hub volume is little, in light weight, saves manufacturing cost; With signal wire (SW) and power lead extraction location corresponding section fairlead is set, and draw simultaneously by cavity, make the wiring arrangement rule compact, effectively protect and prevent power lead generation bending, prolong power lead service life greatly, simultaneously, reduce the gap of casing end face and motor stator, save manufactured materials, further save integral vehicle cost in the time of expendable weight; The present invention can detect driving torque-rotating speed and resistance to motion-vehicle speed signal according to resistance to motion, makes engine installation horsepower output and traveling state of vehicle be in the optimum matching state all the time, realizes the balance control of vehicular drive moment and comprehensive resistance to motion; Can under the situation of not cutting off propulsive effort, self adaptation carry out shift speed change automatically with the change in resistance of travelling, not only help vehicle and mechanical and power equipment is energy-efficient, can also the control vehicle emission abatement, improve dynamic property, economy, drive safety and the traveling comfort of vehicle greatly; Adopt the taper disc type self-adaption two-gear automatic speed changing device, simple and compact for structure, volume is little, saves manufacturing cost; Owing to can under the situation of not cutting off propulsive effort, self adaptation carry out shift speed change automatically with the change in resistance of travelling, can satisfy under mountain area, hills and the heavy load conditions and use, make the engine installation load variations mild, power actuated vehicle operates steadily, and improves safety; Little, in light weight, the compact conformation of change-speed box volume of the present invention is suitable for wheel hub and installs, and is fit to the little light characteristics of Electrical Bicycle volume.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is an axial section structural representation of the present invention;
Fig. 2 be Fig. 1 along A-A to cutaway view;
Fig. 3 be Fig. 1 along B-B to cutaway view;
Fig. 4 be Fig. 1 along C-C to cutaway view;
Fig. 5 be Fig. 1 along D-D to cutaway view;
Fig. 6 is a camshaft structure scheme drawing of the present invention;
Fig. 7 be Fig. 6 along E-E to cutaway view;
Fig. 8 is a male cone (strobilus masculinus) drive sleeve structural representation of the present invention;
Fig. 9 is an inner conical surface clutch gear ring structure scheme drawing of the present invention;
Figure 10 is a Drive ratchet structural representation of the present invention;
Figure 11 is a two stage speed change gear structure scheme drawing of the present invention.
The specific embodiment
Fig. 1 is an axial section structural representation of the present invention, as shown in the figure: see that from left to right left-hand revolution, motor are external rotor electric machine when the transmission shaft 1 of present embodiment is worked.
Automatic speed-changing electric wheel hub, comprise left wheel hub frame 22, right wheel hub frame 18, casing 14, motor, transmission shaft 1, wheel 20 and be arranged on brake gear 23 on the transmission shaft, by the spline heavy keying fit, left wheel hub frame 22 and right wheel hub frame 18 and casing 14 are captiveed joint by bolt of rear end plate between wheel 20 inner rings and camshaft 1 cylindrical; Casing 14 is captiveed joint with left wheel hub frame 22, brake gear 23 is provided with outside support, outside support and right wheel hub frame 18 are captiveed joint by spline, camshaft 1 stretches out casing 14 parts and wheel 20 by the spline heavy keying fit, and with the outside support of brake gear 23 in flexible mistake the 6th radial bearing 24 normal-running fiies; Transmission shaft 1 is arranged in the casing 14, two ends, left and right sides cylindrical Tong Guo first radial bearing 3 and the 5th radial bearing 25 and casing 14 left sides 2 and right side 2a normal-running fit, the part of transmission shaft 1 stretches out casing 14 right sides and wheel 20 passes through spline heavy keying fit, 18 fens Train Wheel 20 left and right sides of left wheel hub frame 22 and right wheel hub frame.
Also comprise change gear shaft 15, change gear shaft 15 be arranged in parallel with transmission shaft 1; On the change gear shaft 15 speed-change gear is set, the taper disc type self-adaption two-gear automatic speed changing assembly is set on the transmission shaft 1, drive by rotor 13 by driving device; Driving device comprises initiatively drive sleeve 11 and driven drive sleeve 7, described active drive sleeve 11 is captiveed joint with rotor 13, driven drive sleeve 7 is enclosed within transmission shaft 1 excircle and its normal-running fit and drives the self-adaption two-gear automatic speed changing assembly, initiatively drive sleeve 11 be enclosed within driven drive sleeve 7 excircles and with its heavy keying fit; Be vertically arranged with the fixing bucket 8 of motor stator in the described casing 14, motor stator 12 is enclosed within motor stator fixing bucket 8 excircles and its heavy keying fit, and initiatively drive sleeve 11 is arranged on the fixing bucket of motor stator 8 inner chambers with driven drive sleeve 7.
Speed-change gear comprises change gear shaft 15, is arranged on one-level variable gear 17 and two stage speed change gear 19 on the change gear shaft 15, and two stage speed change gear 19 nominal diameters are less than one-level variable gear 17; Carry out transmission by clutch transmission 39 between described one-level variable gear 17 and the two stage speed change gear 19, pass through the 3rd radial bearing 16 and the 4th radial bearing 21 normal-running fiies between described change gear shaft 15 left and right sides two ends cylindrical and the casing 14;
The taper disc type self-adaption two-gear automatic speed changing assembly comprises speed change spring cone disk type adaptive power-transfer clutch and keeps off overriding clutch slowly;
I. speed change spring cone disk type adaptive power-transfer clutch comprises and one-level variable gear 17 ingear inner conical surface clutch gear rings 34, male cone (strobilus masculinus) drive sleeve 36, transmission shaft 1 and speed change butterfly spring group 5;
Transmission shaft 1 is the camshaft of the uniform spiral prominence race 1a that to be processed with six cross-sectional planes be rectangle on the excircle, and it is opposite with camshaft 1 hand of rotation that the expansion direction of spiral prominence race 1a is seen from left to right, is that clockwise direction launches; Uniformly on male cone (strobilus masculinus) drive sleeve 36 circumference be processed with just six radial direction through hole 36as identical with spiral prominence race 1a quantity, male cone (strobilus masculinus) drive sleeve 36 free-running fits are enclosed within camshaft 1 excircle, and pin 35 inserts the spiral prominence race 1a of camshaft 1 by radial direction through hole 36a; Inner conical surface clutch gear ring 34 is enclosed within male cone (strobilus masculinus) drive sleeve 36 excircles, and the inner conical surface of inner conical surface clutch gear ring 34 and the male cone (strobilus masculinus) of male cone (strobilus masculinus) drive sleeve 36 fit tightly under 5 effects of speed change butterfly spring group;
Initiatively drive sleeve 11 position of matching with driven drive sleeve 7 is an inner conical surface, driven drive sleeve 7 position of matching with drive sleeve 11 initiatively is a male cone (strobilus masculinus), initiatively drive sleeve 11 and driven drive sleeve 7 circumferencial directions are by flat key 10 heavy keying fit, axially by the conical surface and push bolt 6 heavy keying fit that are spun on the driven drive sleeve 7; Driven drive sleeve 7 is connected with inner conical surface clutch gear ring 34 relative fixed;
Flexible mistake second radial bearing 4 and camshaft 1 normal-running fit passes through the 7th radial bearing 9 normal-running fiies in driven drive sleeve 7 left ends between circle and male cone (strobilus masculinus) drive sleeve 36 excircles in the right-hand member; Its normal-running fit, driven gear 6 cooperates by the spline relative fixed with driven drive sleeve 7 left ends, and driven drive sleeve 7 right sides are respectively arranged with the relative column pin hole in position with inner conical surface clutch gear ring 34 left sides, and passing through radially between the two, transmission pin 49 connects; In the cavity that butterfly spring group 5 forms between driven drive sleeve 7 and camshaft 1, the right side is near male cone (strobilus masculinus) drive sleeve 36 left sides, and the left side is near on the setscrew nut 37 that is spun on the camshaft 1.
II. keep off overriding clutch slowly and speed change spring cone disk type adaptive power-transfer clutch is set up in parallel, comprise with two stage speed change gear 19 ingears keep off slowly overdrive clutch gear ring 31, with keep off overdrive clutch gear ring 31 slowly and keep surmounting the overdrive clutch of the retaining slowly roller 30 that meshes contact condition and keeping off overriding clutch inner ring 28 slowly;
Slowly keep off overriding clutch inner ring 28 free-running fits and be enclosed within transmission shaft 1 excircle, male cone (strobilus masculinus) drive sleeve 36 with keep off slowly overriding clutch inner ring 28 by spline diameter to heavy keying fit;
Slowly keep off overriding clutch and comprise that also axial cross section is the slow gear shaft retainer ring 32 in a left side and the right slow gear shaft retainer ring 29 of T shape; Slowly keep off overriding clutch inner ring 28 excircles and be provided with and keep off inner ring annular boss 28a slowly, inner ring annular boss 28a cylindrical withstands and keeps off overdrive clutch roller 30 slowly; Slowly keeping off overriding clutch is the out star wheel overriding clutch, keeps off the round groove that is embedded with voussoir 51 in the overdrive clutch gear ring 31 slowly, and the spring that keeps off overdrive clutch roller 30 slowly is near voussoir 51;
Slow gear shaft retainer ring 32 in a left side and right slow gear shaft retainer ring 29 are arranged at the inner ring annular boss 28a that keeps off overriding clutch inner ring 28 slowly respectively, keep off overdrive clutch roller 30 and keep off overdrive clutch gear ring 31 left and right sides slowly slowly in the inside mode of T shape end face, slowly keep off overdrive clutch gear ring 31, the slow gear shaft retainer ring 32 in a left side and right slow gear shaft retainer ring 29 the relative pin-and-hole of radial position is set respectively, insert set pin 52 in the pin-and-hole;
Circle and keeping off slowly is positioned at the inner ring annular boss 28a left and right sides and is provided with respectively that a left side keeps off speed change roller 33 slowly and the right side keeps off speed change roller 27 slowly in slow gear shaft retainer ring 32 in a left side and the right slow gear shaft retainer ring 29 between overriding clutch inner ring 28 cylindricals;
Be positioned on the camshaft 1 and keep off the overriding clutch right-hand axis slowly, keep off slowly between overriding clutch inner ring 28 and the locating piece 38 surface bearing 26 is set to fixedly installing locating piece 38.
In the present embodiment, second radial bearing 4 and the 7th radial bearing 9 are the slip graphite oilless sintered-metal bearing, first radial bearing 3, the 3rd radial bearing 16, the 4th radial bearing 21, the 5th radial bearing 25, the 6th radial bearing 24 are antifriction-bearing box, and surface bearing 26 is the plane rolling bearing.
The fast retaining power transmission line of present embodiment:
Slowly keep off power transmission line:
Fast retaining of the present invention transmits the resistance transfer route:
Slowly retaining transmits the resistance transfer route:
Simultaneously, resistance also passes through following route: wheel 20 → camshaft 1 → spiral prominence race 1a → pin 35 → male cone (strobilus masculinus) drive sleeve 36 → compression butterfly spring group 5.
This change-speed box is when operation, butterfly spring group 5 makes male cone (strobilus masculinus) drive sleeve 36 along the axial straight-line motion to the right of camshaft 1, male cone (strobilus masculinus) drive sleeve 36 and inner conical surface clutch gear ring 34 fit tightly, and at this moment, advance according to fast retaining power transmission line rotor drive and wheel 20.Slowly keeping off overriding clutch this moment is in and surmounts state.
Resistance is greater than propulsive effort during motor vehicle starting, resistance forces camshaft 1 to rotate to opposite with direct of travel, spiral prominence race 1a forces pin 35 to be moved to the left, driving male cone (strobilus masculinus) drive sleeve 36 is moved to the left, male cone (strobilus masculinus) drive sleeve 36 is separated with inner conical surface clutch gear ring 34, synchronously, keep off the overriding clutch engaged transmission slowly, advance according to drive of slow motion power transfer route rotor and wheel 20.
Therefore, realize the bottom gear starting automatically, shortened cranking time, reduced starting power.Meanwhile, resistance absorbs movement resistor moment energy by male cone (strobilus masculinus) drive sleeve 36 compression butterfly spring groups 5, holds potential energy fully for recovering soon the gear transferring power.
After starting successfully, resistance to motion reduces, when component is reduced to less than in the speed change butterfly spring automatic transmission that speed change butterfly spring group 5 produced pressure, because of producing butterfly spring group 5 pressure, the compression of passive movement resistance discharges promotion rapidly down, finish male cone (strobilus masculinus) drive sleeve 36 and inner conical surface clutch gear ring 34 and recover to fit tightly state, keep off overriding clutch slowly and be in and surmount state.
In the driving process,, realize variable block not needing to cut off under the situation of propulsive effort, make whole locomotive operation steady, safe and low consumption along with the variation self shifter principle of resistance of motion is the same.
Fig. 2 be Fig. 1 along A-A to cutaway view, be the engaging structure figure of inner conical surface clutch gear ring 34 and one-level variable gear 17, as shown in the figure: in the casing 14: one-level variable gear 17 and change gear shaft 15 by spline diameter to heavy keying fit, and with inner conical surface clutch gear ring 34 engagement, male cone (strobilus masculinus) drive sleeve 36 is enclosed within on the camshaft 1 and inner conical surface clutch gear ring 34 fits tightly; Casing 14 and motor stator 12 corresponding end faces be provided with corresponding three power lead holes 41, three power lead 40 positions and with the corresponding signal wire (SW) of signal wire (SW) 43 extraction locations hole 42, corresponding at casing 14 end face arranged outside cavitys 50 with power lead hole 41 and signal wire (SW) hole 42, cavity 50 sidewalls and casing 14 are wholely set.
Fig. 3 be Fig. 1 along B-B to cutaway view; For keeping off overriding clutch and two stage speed change gear 19 engaging structure figure slowly, as shown in the figure: two stage speed change gear 19 and change gear shaft 1 by spline diameter to heavy keying fit, and with keep off overdrive clutch gear ring 31 engagement slowly, the retaining overriding clutch is the out star wheel overriding clutch, comprise keep off slowly overdrive clutch gear ring 31, with keep off overdrive clutch gear ring 31 slowly and keep surmounting the overdrive clutch of the retaining slowly roller 30 that meshes contact condition and keeping off overriding clutch inner ring 28 slowly; Slowly keep off overriding clutch inner ring 28 free-running fits and be enclosed within transmission shaft 1 cylindrical, keep off overriding clutch inner ring 28 excircles slowly and be provided with and keep off inner ring annular boss 28a slowly, inner ring annular boss 28a cylindrical withstands and keeps off overdrive clutch roller 30 slowly.
Fig. 4 be Fig. 1 along C-C to cutaway view, be the clutch transmission structural representation, as shown in the figure: in conjunction with Fig. 1, clutch transmission 39 comprises holddown spring 43, Drive ratchet 44, disengaging yoke 45, declutch shift shaft 46 and return torsion spring 47; Drive ratchet 44 is enclosed within on the change gear shaft 15 to heavy keying fit by spline diameter, and mesh with driven ratchet 19a under the effect of holddown spring 43 in the left side, and holddown spring 43 left ends are near one-level variable gear 17; Drive ratchet 44 excircles are provided with circumferential groove in its end portion 44a, disengaging yoke 45 1 ends stretch into from circumferential groove in its end portion 44a radially, the other end and declutch shift shaft 46 heavy keying fit, declutch shift shaft 46 can rotate and perpendicular to change gear shaft 15 relative to casing, and return torsion spring 47 is arranged on and acts on disengaging yoke 45 on the change gear shaft 15 and make it do return behind the separating action; Disengaging yoke 45 is provided with the limiting stopper 48 that prevents that disengaging yoke 45 and circumferential groove in its end portion 44a from rubbing.
Fig. 5 be Fig. 1 along D-D to cutaway view, as shown in the figure: the uniform spiral prominence race 1a that to be processed with six cross-sectional planes be rectangle on camshaft 1 excircle, uniformly on male cone (strobilus masculinus) drive sleeve 36 circumference be processed with six radial direction through hole 36a, male cone (strobilus masculinus) drive sleeve 36 free-running fits are enclosed within camshaft 1 excircle, and pin 35 inserts the spiral prominence race 1a of camshaft 1 by radial direction through hole 36a; Driven drive sleeve 7 is enclosed within driven drive sleeve 36 excircles by the 7th radial bearing 9 and its normal-running fit.
Fig. 6 is a camshaft structure scheme drawing of the present invention, Fig. 7 be Fig. 6 along E-E to cutaway view, as shown in the figure: transmission shaft 1 is the camshaft of the uniform spiral prominence race 1a that to be processed with six cross-sectional planes be rectangle on the excircle, it is opposite with camshaft 1 hand of rotation that the expansion direction of spiral prominence race 1a is seen from left to right, for clockwise direction launches.
Fig. 8 is a male cone (strobilus masculinus) drive sleeve structural representation of the present invention, and as shown in the figure: uniformly on male cone (strobilus masculinus) drive sleeve 36 circumference be processed with six radial direction through hole 36a, the conical surface is positioned at the right-hand member cylindrical, and right-hand member is processed with and is used for and keeps off overriding clutch inner ring 28 ingear splines slowly.
Fig. 9 is an inner conical surface clutch gear ring structure scheme drawing of the present invention, and as shown in the figure: inner conical surface clutch gear ring 34 excircles are processed with gear ring, and left end is provided with and is used for the pin-and-hole of captiveing joint with driven drive sleeve 7.
Figure 10 is a Drive ratchet structural representation of the present invention, and as shown in the figure: circle is provided with spline in the Drive ratchet 44, and left end face is provided with spline, and excircle is provided with circumferential groove in its end portion 44a.
Figure 11 is a two stage speed change gear structure scheme drawing of the present invention, and as shown in the figure: driven ratchet 19a and two stage speed change gear 19 are made one, are arranged on the left side of two stage speed change gear 19.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. automatic speed-changing electric wheel hub, comprise left wheel hub frame (22), right wheel hub frame (18), casing (14), motor, transmission shaft (1), wheel (20) and be arranged on brake gear (23) on the transmission shaft (1), described left wheel hub frame (22) is captiveed joint with casing (14) with right wheel hub frame (18), transmission shaft (1) is arranged in the casing (14) and its normal-running fit, the part of transmission shaft (1) is stretched out casing (14) and wheel (20) heavy keying fit, left wheel hub frame (22) and right wheel hub frame (18) divide Train Wheel (20) left and right sides, it is characterized in that: also comprise the self-adaption two-gear automatic speed changing assembly that is arranged on the transmission shaft (1), described self-adaption two-gear automatic speed changing assembly is the taper disc type self-adaption two-gear automatic speed changing assembly, described taper disc type self-adaption two-gear automatic speed changing assembly is driven by rotor (13) by driven drive sleeve (7), and driven drive sleeve (7) is enclosed within transmission shaft (1) excircle and its normal-running fit; Be vertically arranged with the fixing bucket of motor stator (8) in the described casing (14), motor stator (12) is enclosed within motor stator fixing bucket (8) excircle and its heavy keying fit, and driven drive sleeve (7) is arranged on the fixing bucket of motor stator (8) inner chamber;
Also comprise change gear shaft (15), described change gear shaft (15) be arranged in parallel with transmission shaft (1); Described change gear shaft is provided with speed-change gear on (15);
A. speed-change gear comprises one-level variable gear (17) and the two stage speed change gear (19) that is arranged on the change gear shaft (15); Carry out transmission by clutch transmission (39) between described one-level variable gear (17) and the two stage speed change gear (19);
B. the taper disc type self-adaption two-gear automatic speed changing assembly comprises speed change spring cone disk type adaptive power-transfer clutch and keeps off overriding clutch slowly;
I. speed change spring cone disk type adaptive power-transfer clutch comprises and one-level variable gear (17) ingear inner conical surface clutch gear ring (34), male cone (strobilus masculinus) drive sleeve (36), described transmission shaft (1) and speed change spring (5);
Described transmission shaft (1) is the uniform camshaft that is processed with at least one spiral prominence race (1a) on the excircle, and it is opposite with camshaft (1) hand of rotation that the expansion direction of spiral prominence race (1a) is seen from left to right; Uniformly on male cone (strobilus masculinus) drive sleeve (36) circumference be processed with the radial direction through hole (36a) identical with spiral prominence race (1a) quantity, male cone (strobilus masculinus) drive sleeve (36) free-running fit is enclosed within camshaft (1) excircle, and pin (35) inserts the spiral prominence race (1a) of camshaft (1) by radial direction through hole (36a); Inner conical surface clutch gear ring (34) is enclosed within male cone (strobilus masculinus) drive sleeve (36) excircle, and the male cone (strobilus masculinus) of the inner conical surface of inner conical surface clutch gear ring (34) and male cone (strobilus masculinus) drive sleeve (36) fits tightly under speed change spring (5) effect;
Described rotor is captiveed joint with driven drive sleeve (7) by active drive sleeve (11), initiatively drive sleeve (11) be enclosed within driven drive sleeve (7) excircle and with its heavy keying fit, initiatively drive sleeve (11) and driven drive sleeve (7) are arranged on fixing barrel (8) inner chamber of motor stator; Described active drive sleeve (11) position of matching with driven drive sleeve (7) is an inner conical surface, driven drive sleeve (7) position of matching with drive sleeve (11) initiatively is a male cone (strobilus masculinus), described active drive sleeve (11) and driven drive sleeve (7) circumferencial direction are by flat key (10) heavy keying fit, axially by the conical surface and push bolt (6) heavy keying fit that is spun on the driven drive sleeve (7); Driven drive sleeve (7) is connected with inner conical surface clutch gear ring (34) relative fixed;
II. keep off overriding clutch slowly and speed change spring cone disk type adaptive power-transfer clutch is set up in parallel, comprise with two stage speed change gear (19) ingear keep off slowly overdrive clutch gear ring (31), with keep off overdrive clutch gear ring (31) slowly and keep surmounting the overdrive clutch of the retaining slowly roller (30) that meshes contact condition and keeping off overriding clutch inner ring (28) slowly;
Slowly keep off overriding clutch inner ring (28) free-running fit and be enclosed within transmission shaft (1) excircle, keep off overriding clutch inner ring (28) cylindrical slowly and withstand and keep off overdrive clutch roller (30) slowly;
Male cone (strobilus masculinus) drive sleeve (36) with keep off radially heavy keying fit of overriding clutch inner ring (28) slowly.
2. automatic speed-changing electric wheel hub according to claim 1, it is characterized in that: described casing (14) and the corresponding end face of motor stator (12) be provided with corresponding power lead hole, power lead (40) position (41) and with signal wire (SW) (43) extraction location corresponding signal wire (SW) hole (42), corresponding with power lead hole (41) and signal wire (SW) hole (42) at casing (14) end face arranged outside cavity (50), described cavity (50) sidewall and casing (14) are wholely set, cavity (50) is provided with removable end cap (53), end cap (53) is provided with comprehensive fairlead (33), and described power lead (40) and signal wire (SW) (43) are drawn by comprehensive fairlead (33).
3. automatic speed-changing electric wheel hub according to claim 2, it is characterized in that: described clutch transmission (39) comprises holddown spring (43), Drive ratchet (44), disengaging yoke (45), declutch shift shaft (46), return torsion spring (47) and be fixedly installed on driven ratchet (19a) on two stage speed change gear (19) end face, described change gear shaft (15) and casing (14) normal-running fit, described one-level variable gear (17) radially heavy keying fit is enclosed within on the change gear shaft (15), two stage speed change gear (19) free-running fit is enclosed within on the change gear shaft (15), and two stage speed change gear (19) nominal diameter is less than one-level variable gear (17); Drive ratchet (44) radially heavy keying fit is enclosed within change gear shaft (15) and goes up under the effect of holddown spring (43) and mesh with driven ratchet (19a); Described Drive ratchet (44) excircle is provided with circumferential groove in its end portion (44a), disengaging yoke (45) one ends are from radially stretching into circumferential groove in its end portion (44a), the other end and declutch shift shaft (46) heavy keying fit, declutch shift shaft (46) can rotate and perpendicular to change gear shaft (15) relative to casing, and return torsion spring (47) is arranged on and acts on disengaging yoke (45) on the change gear shaft (15) and make it do return behind the separating action; Described disengaging yoke (45) setting prevents the limiting stopper (48) that disengaging yoke (45) and circumferential groove in its end portion (44a) rub.
4. automatic speed-changing electric wheel hub according to claim 3, it is characterized in that: described speed change spring (5) is butterfly spring group, be positioned at the cavity that forms between driven drive sleeve (7) and the camshaft (1), the right side is near male cone (strobilus masculinus) drive sleeve (36) left side, and the left side is near on the setscrew nut (37) that is spun on the camshaft (1).
5. automatic speed-changing electric wheel hub according to claim 4 is characterized in that: the described overriding clutch that keeps off slowly comprises that also axial cross section is the slow gear shaft retainer ring (32) in a left side and the right slow gear shaft retainer ring (29) of T shape; Slowly keep off overriding clutch inner ring (28) excircle and be provided with and keep off inner ring annular boss (28a) slowly, inner ring annular boss (28a) cylindrical withstands and keeps off overdrive clutch roller (30) slowly; Slowly keeping off overriding clutch is the out star wheel overriding clutch, keeps off the round groove that is embedded with voussoir (51) in the overdrive clutch gear ring (31) slowly, and the spring that keeps off overdrive clutch roller (30) slowly is near voussoir (51);
Slow gear shaft retainer ring (32) in a left side and right gear shaft retainer ring (29) slowly are arranged at the inner ring annular boss (28a) that keeps off overriding clutch inner ring (28) slowly respectively, keep off overdrive clutch roller (30) and keep off overdrive clutch gear ring (31) left and right sides slowly slowly in the inside mode of T shape end face, slowly keep off overdrive clutch gear ring (31), the slow gear shaft retainer ring (32) in a left side and right slow gear shaft retainer ring (29) the relative pin-and-hole of radial position is set respectively, insert set pin (52) in the pin-and-hole;
Round and keep off slowly and be positioned at inner ring annular boss (28a) left and right sides between overriding clutch inner ring (28) cylindrical and be provided with respectively that a left side keeps off speed change roller (33) slowly and the right side keeps off speed change roller (27) slowly in slow gear shaft retainer ring (32) in a left side and the right slow gear shaft retainer ring (29).
6. automatic speed-changing electric wheel hub according to claim 5 is characterized in that: described spiral prominence race (1a) be six uniform on the circumference of camshaft (1), cross-sectional plane is a rectangle.
7. automatic speed-changing electric wheel hub according to claim 6, it is characterized in that: described casing (14) is captiveed joint with left wheel hub frame (22), brake gear (23) is provided with outside support, outside support is captiveed joint with right wheel hub frame (18), camshaft (1) stretches out casing (14) part and wheel (20) heavy keying fit, and with the outside support of brake gear (23) in the circle normal-running fit.
8. automatic speed-changing electric wheel hub according to claim 7 is characterized in that: mesh by spline or flat key between described wheel (20) inner ring and camshaft (1) cylindrical; Male cone (strobilus masculinus) drive sleeve (36) and keeping off slowly between the overriding clutch inner ring (28) is all passed through spline engagement between one-level variable gear (17) and Drive ratchet (44) and the change gear shaft (15); Driven drive sleeve (7) is respectively arranged with the relative column pin hole in position with inner conical surface clutch gear ring (34), and passing through radially between the two, transmission pin (49) connects.
9. automatic speed-changing electric wheel hub according to claim 8, it is characterized in that: described driven drive sleeve (7) left end passes through the 7th radial bearing (9) normal-running fit by second radial bearing (4) and camshaft (1) normal-running fit between right-hand member and male cone (strobilus masculinus) drive sleeve (36) excircle; Described camshaft (1) left end cylindrical cooperates with casing (14) left side by first radial bearing (3), and camshaft (1) right-hand member cylindrical cooperates with casing (14) right side by the 5th radial bearing (25); Change gear shaft (15) left end cylindrical cooperates with casing (14) by the 3rd radial bearing (16), and change gear shaft (15) right-hand member cylindrical cooperates with casing (14) by the 4th radial bearing (21); Circle cooperates by the 6th radial bearing (24) with camshaft (1) right-hand member in brake gear (23) support; Be positioned on the camshaft (1) and keep off the overriding clutch right-hand axis slowly, keep off slowly between overriding clutch inner ring (28) and the locating piece (38) surface bearing (26) is set to fixedly installing locating piece (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810069420XA CN101244747B (en) | 2008-03-03 | 2008-03-03 | Automatic speed changing electric driven hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810069420XA CN101244747B (en) | 2008-03-03 | 2008-03-03 | Automatic speed changing electric driven hub |
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| Publication Number | Publication Date |
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| CN101244747A CN101244747A (en) | 2008-08-20 |
| CN101244747B true CN101244747B (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810069420XA Expired - Fee Related CN101244747B (en) | 2008-03-03 | 2008-03-03 | Automatic speed changing electric driven hub |
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| CN (1) | CN101244747B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2216241B1 (en) | 2007-08-31 | 2016-04-06 | Southwest University | A cam self-adapting automatic speed-varying hub |
| JP5328736B2 (en) * | 2010-08-31 | 2013-10-30 | 本田技研工業株式会社 | Control device for electric motorcycle |
| CN102180089B (en) * | 2011-04-14 | 2013-07-17 | 西南大学 | Shifting block type automatic variable speed hub |
| JP2013126859A (en) * | 2011-11-15 | 2013-06-27 | Yamaha Motor Co Ltd | Wheel for saddle-ride type electric vehicle, wheel-driving electric motor for saddle-ride type electric vehicle, and saddle-ride type electric vehicle |
| CN102582738B (en) * | 2011-12-01 | 2013-08-07 | 北京邮电大学 | Variable-structure self-balancing two-wheeled vehicle |
| CN102431620A (en) * | 2011-12-27 | 2012-05-02 | 路海燕 | Electric bicycle |
| CN102537265B (en) * | 2012-01-20 | 2015-06-03 | 西南大学 | Mechanical intelligent self-adaption two-gear automatic speed change driving assembly |
| CN102815366B (en) * | 2012-09-17 | 2013-10-23 | 贵州兴国新动力科技有限公司重庆分公司 | Integral planet gear coaxial third-gear variable speed electric driving system |
| CN103036354B (en) * | 2012-11-23 | 2015-03-11 | 朱幕松 | Ultra-thin multi-drive brushless hub motor with high speed and high efficiency |
| CN103457406A (en) * | 2013-04-22 | 2013-12-18 | 台州立马电动车科技有限公司 | Driving motor for electric car |
| CN104554601A (en) * | 2013-10-18 | 2015-04-29 | 无锡爱奇克发动机有限公司 | Bottom fork and motor connection structure of electric bicycle |
| CN105691184B (en) * | 2014-11-24 | 2019-12-17 | 舍弗勒技术有限两合公司 | Hub drive assembly |
| CN105599591B (en) * | 2014-11-24 | 2019-12-17 | 舍弗勒技术有限两合公司 | hub drive assembly |
| CN105221734B (en) * | 2015-09-09 | 2018-04-03 | 梁稚子 | Battery-operated motor cycle external rotor electric machine pendulum-type self-adapting automatic gear shift drive assembly |
| CN105932823B (en) * | 2016-05-17 | 2018-01-26 | 朱幕松 | Microminiature iron-core-free brushless efficient wheel hub motor |
| CN106090167A (en) * | 2016-07-14 | 2016-11-09 | 立马车业集团有限公司 | Power take off actuating device |
| CN106160336A (en) * | 2016-07-14 | 2016-11-23 | 立马车业集团有限公司 | motor power follower |
| CN111371247B (en) * | 2018-12-25 | 2020-12-29 | 永顺通科技有限公司 | Hub variable speed motor |
| CN111016630B (en) * | 2019-12-31 | 2022-04-22 | 西南大学 | Coaxial self-adaptive electric drive assembly adopting central drive form |
| CN111016626A (en) * | 2019-12-31 | 2020-04-17 | 西南大学 | Multi-motor driven integrated central driving system |
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2008
- 2008-03-03 CN CN200810069420XA patent/CN101244747B/en not_active Expired - Fee Related
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Granted publication date: 20100721 |