CN103840604A - Electric vehicle variable speed drive hub - Google Patents
Electric vehicle variable speed drive hub Download PDFInfo
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- CN103840604A CN103840604A CN201410119255.XA CN201410119255A CN103840604A CN 103840604 A CN103840604 A CN 103840604A CN 201410119255 A CN201410119255 A CN 201410119255A CN 103840604 A CN103840604 A CN 103840604A
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- wheel hub
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 63
- 239000010959 steel Substances 0.000 claims abstract description 63
- 230000009467 reduction Effects 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 20
- 230000008901 benefit Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 4
- 230000008859 change Effects 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 11
- 239000000428 dust Substances 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0061—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electrical machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2072—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for drive off
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2072—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for drive off
- B60L15/2081—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for drive off for drive off on a slope
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/425—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/60—Navigation input
- B60L2240/64—Road conditions
- B60L2240/642—Slope of road
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/10—Emission reduction
- B60L2270/14—Emission reduction of noise
- B60L2270/142—Emission reduction of noise acoustic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention provides an electric vehicle variable speed drive hub, and belongs to the technical field of machine engineering. The electric vehicle variable speed drive hub solves the problem that an existing electric vehicle variable speed drive hub is poor in heat dissipation performance, loud in noise and low in output efficiency. The electric vehicle variable speed drive hub comprises a fixing shaft, a hub steel ring, a motor and a speed reducer, wherein the hub steel ring is positioned on the fixing shaft; the speed reducer is located in the hub steel ring, and the motor is located on one side of the speed reducer and located outside the hub steel ring; the motor is composed of a stator and a rotor, the stator is fixedly connected with the fixing shaft, and the rotor is positioned on the fixing shaft; the speed reducer comprises a box body, an input gear shaft, an output gear shaft and an overrun clutch, the box is fixedly connected with the fixing shaft, the input gear shaft is connected with the rotor, and the output gear shaft is fixedly connected with the hub steel ring; the rotor and the hub steel ring are connected through the overrun clutch. The electric vehicle variable speed drive hub has the advantages of being good in heat dissipation effect, high in universality and low in noise.
Description
Technical field
The invention belongs to mechanical engineering technical field, relate to a kind of driving wheel hub of electric vehicle, particularly a kind of electric motor car variable speed drives wheel hub.
Background technology
Electric motor car be exactly in brief electricity consumption masterpiece be drive locomotive.As electric bicycle and battery-operated motor cycle.
Battery-operated motor cycle comprises vehicle body, drive hub and power supply etc.; Wherein drive hub is driving element.
At present, drive hub speed change gear used mainly contains two kinds, and one is electronic type stepless controller speed change, and another kind is mechanical type speed change.Electronic type stepless controller speed change can obtain from 0 maximum speed to motor, has good speed change curve, but the level of torque that it is exported is directly consistent with the input current size variation of motor; In the time that voltage is constant, the larger required electric current of motor load is also just larger.Mechanical type speed change is divided into step speed change formula and stepless speed change type.Mechanical type speed change can obtain the output torque of different sizes; In the time that input current is constant, by mechanical type deceleration energy, torque is increased, or torque is reduced when speedup.
In Chinese patent literature, record electrically-propelled vehicle shifting driving hub [application number: 201110217964.8; Application publication number: CN102410317A], this drive hub is the drive hub of mechanical type step speed change.It comprises motor, freewheel clutch, centrifugal clutch and multiple gear trains etc.The motor of this drive hub is positioned at hub body, thereby exists the problem of poor radiation, and then can cause temp. of gear-shifting box to raise, the series of problems such as parts reduction in useful life.Motor is high-speed electric expreess locomotive, and drive hub adopts two-stage reduction of speed, and then exists the problem that delivery efficiency is low.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, proposed a kind of electric motor car variable speed drives wheel hub, the technical problem to be solved in the present invention is how to improve the thermal diffusivity of motor.
Object of the present invention can realize by following technical proposal: a kind of electric motor car variable speed drives wheel hub, comprise fixed axis, wheel hub steel ring, motor and reduction box, and wheel hub steel ring is positioned on fixed axis; It is characterized in that, described reduction box is positioned at wheel hub steel ring, and described motor is positioned at a side of reduction box and is positioned at outside wheel hub steel ring; Motor comprises stator and rotor, and stator is fixedly connected with fixed axis, and rotor is positioned on fixed axis; Reduction box comprises casing, input gear axle, output gear shaft and freewheel clutch, and casing is fixedly connected with fixed axis, and input gear axle is connected with rotor, and output gear shaft is fixedly connected with wheel hub steel ring; Between rotor and wheel hub steel ring, be connected by centrifugal clutch.
Centrifugal clutch in this electric motor car variable speed drives wheel hub has the engagement of setting rotating speed.When motor running speed is set engagement rotating speed lower than centrifugal clutch, centrifugal clutch is in released state, and between motor and wheel hub steel ring, by reduction box transmission, reduction box has reduction of speed and increases the effect of turning round, under lower-speed state, improve output torque, be conducive to electric motor car starting and climbing.
When motor running speed is set engagement rotating speed higher than centrifugal clutch, centrifugal clutch, in engagement, by centrifugal clutch transmission, is realized equispeed output between motor and wheel hub steel ring, is conducive to electric motor car and runs at high speed.
Motor is positioned at wheel hub steel ring outside, and motor is fully contacted with air, is conducive to motor radiating, effectively improves the thermal diffusivity of motor; Meanwhile, motor separates with reduction box, stops motor heat and is passed in reduction box, and then ensure that reduction box normally moves.
Motor is slowspeed machine; By side cover and the fixed axis of removal reduction box, replacing wheel hub steel ring, just can make this electric motor car variable speed drives wheel hub become common slowspeed machine.In other words, can be easily from common electric motor car slowspeed machine drive hub repacking cost electric motor car variable speed drives wheel hub, therefore, this electric motor car variable speed drives wheel hub has advantages of that versatility is high.
In above-mentioned electric motor car variable speed drives wheel hub, input gear axle and output gear shaft in described reduction box penetrate in casing; Freewheel clutch comprises star-wheel and the second outer ring, is fixed with the first gear being meshed with the tooth portion of input gear axle on the second outer ring, is fixed with the second gear being meshed with the tooth portion of output gear shaft on star-wheel; The second gear is positioned on casing.In the time that input gear axle rotating speed is greater than output gear shaft rotating speed, freewheel clutch is in engagement, and this state is electric motor car variable speed drives wheel hub low cruise state.In the time that output gear shaft rotating speed is greater than input gear axle rotating speed, freewheel clutch is in released state, and this state is electric motor car variable speed drives wheel hub high-speed cruising state or reversing state.
In above-mentioned electric motor car variable speed drives wheel hub, the output gear shaft in described reduction box and input gear axle rotating speed ratio are 0.7～0.8.Above-mentioned numerical value can ensure to slow down to increase and turn round effect and contribute to low speed driving, can avoid again between motor and wheel hub steel ring by reduction box transmission with poor compared with affecting greatly road-ability by centrifugal clutch transmission speed; Can make smooth transition between reduction box transmission and centrifugal clutch transmission.
In above-mentioned electric motor car variable speed drives wheel hub, between described input gear axle and output gear shaft, be provided with fixed head, described fixed head is fixedly connected with fixed axis, and described casing is fixedly connected with fixed head.This structure makes casing be fixedly connected with fixed axis, and this structure has simple in structure, the advantage of fixation.As preferably, fixed head and fixed axis are by spline joint, and casing is connected by bolt with fixed head, make like this reduction box assemble and convenient disassembly.
In above-mentioned electric motor car variable speed drives wheel hub, described rotor comprises a side cover that is enclosed within the first outer ring on stator and two and lays respectively at stator both sides, and side cover is connected with fixed axis by bearing, and side cover is fixedly connected with the first outer ring.Said structure is realized rotor and is positioned on fixed axis.The side cover of this rotor and the first outer ring can be changed according to actual conditions, and as the first outer ring is replaced by steel ring, this motor is common slowspeed machine.
In above-mentioned electric motor car variable speed drives wheel hub, between described side cover and fixed axis, be provided with the first sealing ring, the first sealing ring is positioned at bearing outside.The first sealing ring makes to form and seal between side cover and fixed axis, and then avoids rainwater and dust and other impurities to enter in motor.
In above-mentioned electric motor car variable speed drives wheel hub, described wheel hub steel ring comprises steel ring, is positioned at the end cap that covers and be positioned at steel ring opposite side that rouses of steel ring one side, input gear axle is through end cap, input gear axle sleeve is on fixed axis, between input gear axle sleeve and fixed axis, be connected by bearing, between input gear axle and end cap, be connected by bearing, between drum lid and fixed axis, be connected by bearing.Said structure is realized wheel hub steel ring and is positioned on fixed axis.This wheel hub steel ring can be changed steel ring or drum lid or end cap according to actual needs, makes wheel hub steel ring more general, and then can form the electric motor car variable speed drives wheel hub of Multiple Type.
In above-mentioned electric motor car variable speed drives wheel hub, between the end cap of described wheel hub steel ring and the side cover of motor, be provided with the second sealing ring.Sealing circle avoids rainwater and dust and other impurities to enter between end cap and side cover, so between above-mentioned end cap and fixed axis and between side cover and fixed axis without sealing ring is set again.Maximum speed between end cap and side cover is far below maximum speed between maximum speed and side cover and fixed axis between end cap and fixed axis, therefore, sealing ring is arranged on and between end cap and side cover, there is the installation of convenience, simplified structure, raising sealing and useful life.
Compared with prior art, the motor of this electric motor car variable speed drives wheel hub and wheel hub steel ring left and right arrange, and have highly versatile, reequip convenient and dismounting and advantage easy to maintenance.Motor directly contacts with air, has advantages of good heat dissipation effect.This electric motor car variable speed drives wheel hub adopts slowspeed machine, has output speed low, the advantage that moment of torsion is large, and drive hub only passes through a speed change in the time of low cruise; When high-speed cruising, equal proportion transmission, therefore has advantages of that transmission efficiency is high; In a word, this electric motor car variable speed drives wheel hub has advantages of that noise is little.The performance that the variable speed drives of this electric motor car simultaneously wheel hub can also improve electric motor car starting, climb and run at high speed.
Brief description of the drawings
Fig. 1 is the perspective view of this electric motor car variable speed drives wheel hub.
Fig. 2 is the perspective view at another visual angle of this electric motor car variable speed drives wheel hub.
Fig. 3 is that this electric motor car variable speed drives wheel hub removes the perspective view after wheel hub steel ring and reduction box.
Fig. 4 is the side-looking structural representation of Fig. 3.
Fig. 5 is that this electric motor car variable speed drives wheel hub removes the perspective view after wheel hub steel ring and Gearbox.
Fig. 6 is the sectional structure schematic diagram of this electric motor car variable speed drives wheel hub.
In figure, 1, fixed axis; 2, wheel hub steel ring; 2a, steel ring; 2b, drum lid; 2c, end cap; 3, motor; 3a, stator; 3b, rotor; 3c, the first outer ring; 3d, side cover; 4, centrifugal clutch; 4a, connecting plate; 4b, ratchet; 4c, ratchet; 4d, spring; 5, reduction box; 5a, casing; 5b, input gear axle; 5c, output gear shaft; 5d, freewheel clutch; 5d1, star-wheel; 5d2, the second outer ring; 5e, fixed head; 5f, the first gear; 5g, the second gear; 6, bearing; 7, the first sealing ring; 8, the second sealing ring; 9, the 3rd sealing ring.
Embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figures 1 to 6, this electric motor car variable speed drives wheel hub comprises fixed axis 1, wheel hub steel ring 2, motor 3, centrifugal clutch 4 and reduction box 5.
With shown in Fig. 6, wheel hub steel ring 2, motor 3 and reduction box 5 are all enclosed within on fixed axis 1 as shown in Figure 1, Figure 2.Motor 3 is positioned at a side of reduction box 5, and the motor 3 that the present embodiment provides is positioned at the left side of reduction box 5.According to actual conditions, motor 3 also can be positioned at the right side of reduction box 5.Reduction box 5 is positioned at wheel hub steel ring 2, and motor 3 is positioned at outside wheel hub steel ring 2.
Reduction box 5 comprises casing 5a, input gear axle 5b, output gear shaft 5c and freewheel clutch 5d, and casing 5a is fixedly connected with fixed axis 1; Input gear axle 5b and output gear shaft 5c pass casing 5a.Output gear shaft 5c in reduction box 5 and input gear axle 5b rotating speed ratio are 0.7～0.8.Specifically, input gear axle 5b and output gear shaft 5c are all enclosed within on fixed axis 1, between input gear axle 5b and fixed axis 1 and between output gear shaft 5c and fixed axis 1, are all connected by bearing 6.
Between input gear axle 5b and output gear shaft 5c, be provided with fixed head 5e, fixed axis 1 is through fixed head 5e, between fixed head 5e and fixed axis 1, by spline joint, the two ends of fixed head 5e and bearing 6 lean, and realize being thus fixedly connected with of fixed head 5e and fixed axis 1.Casing 5a is fixedly connected with fixed head 5e, realizes thus casing 5a and is fixedly connected with fixed axis 1.Casing 5a comprises left box body 5a and right case 5a, and the present embodiment provides fixed head 5e and left box body 5a is bolted.
Between input gear axle 5b and casing 5a and between output gear shaft 5c and casing 5a, be all connected by bearing 6, this structure improves the stability that casing 5a is fixing effectively, and then improves the stability of freewheel clutch 5d operation.
Wheel hub steel ring 2 is positioned on fixed axis 1; Specifically, wheel hub steel ring 2 comprises steel ring 2a, the drum that is positioned at steel ring 2a mono-side covers 2b and be positioned at the end cap 2c of steel ring 2a opposite side.The present embodiment provides end cap 2c and is positioned at the left side of steel ring 2a, and drum covers 2b and be positioned at the right side of steel ring 2a; Be that end cap 2c and above-mentioned right cap 3d are adjacent, there is gap between the two.Input gear axle 5b is through end cap 2c; Between input gear axle 5b and end cap 2c, be connected by bearing 6, drum covers between 2b and fixed axis 1 and is connected by bearing 6; Thus, wheel hub steel ring 2 can stably rotate around fixed axis 1.
Between input gear axle 5b and fixed axis 1, be provided with multiple bearings 6, the quantity that the present embodiment provides is three, for carrying the pressure of end cap 2c to input gear axle 5b, and then the useful life of guarantee drive hub.
The input gear axle 5b of reduction box 5 is connected with rotor 3b, and output gear shaft 5c covers 2b with the drum of wheel hub steel ring 2 and is fixedly connected with; Between rotor 3b and wheel hub steel ring 2, be connected by centrifugal clutch 4.Specifically, centrifugal clutch 4 comprises connecting plate 4a and is set in the ratchet 4b on connecting plate 4a, is hinged with ratchet 4c on ratchet 4b, between ratchet 4c and connecting plate 4a, is also provided with spring 4d.Connecting plate 4a is fixedly connected with right cap 3d, and input gear axle 5b and connecting plate 4a, by spline joint, realize being in transmission connection between input gear axle 5b and rotor 3b thus, have advantages of easy accessibility simultaneously.Ratchet 4b is fixedly connected with end cap 2c.
Enter in drive hub for fear of rainwater and dust, between the left cap 3d of motor 3 and fixed axis 1, be provided with the first sealing ring 7, the first sealing rings 7 and be positioned at bearing 6 outsides.Between the end cap 2c of wheel hub steel ring 2 and the right cap 3d of motor 3, be provided with the outside that the second sealing ring 8, the second sealing rings 8 are positioned at centrifugal clutch 4.The drum of wheel hub steel ring 2 covers and between 2b and fixed axis 1, is provided with the 3rd sealing ring 9, the three sealing rings 9 and is positioned at bearing 6 outsides.
When electric motor car starting or climbing or low speed driving, motor 3 rotor 3b rotating speeds are set engagement rotating speed lower than centrifugal clutch 4, ratchet 4c in centrifugal clutch 4 is under the effect of spring 4d elastic force, and ratchet 4c and ratchet 4b are in released state, and centrifugal clutch 4 is in released state; Under this state, between motor 3 and wheel hub steel ring 2, pass through reduction box 5 transmissions.Specifically, rotor 3b drives connecting plate 4a, input gear axle 5b, freewheel clutch 5d, output gear shaft 5c and the wheel hub steel ring 2 of centrifugal clutch 4 successively.
When electric motor car high speed traveling, motor 3 rotor 3b rotating speeds are set engagement rotating speed higher than centrifugal clutch 4; Ratchet 4c overcomes spring 4d elastic force under centrifugal action, and ratchet 4c is meshed with ratchet 4b, and centrifugal clutch 4 is in engagement; Under this state, between motor 3 and wheel hub steel ring 2, pass through centrifugal clutch 4 transmissions.Specifically, rotor 3b drives the connecting plate 4a of centrifugal clutch 4, the star-wheel 5d1 of input gear axle 5b, freewheel clutch 5d successively; Rotor 3b drives connecting plate 4a, ratchet 4b, the wheel hub steel ring 2 of centrifugal clutch 4, the second outer ring 5d2 of output gear shaft 5c, freewheel clutch 5d successively simultaneously.The second outer ring 5d2 rotating speed of freewheel clutch 5d is greater than star-wheel 5d1 rotating speed, and therefore, freewheel clutch 5d is in released state.
Claims (10)
1. an electric motor car variable speed drives wheel hub, comprises fixed axis (1), wheel hub steel ring (2), motor (3), centrifugal clutch (4) and reduction box (5), and wheel hub steel ring (2) is positioned on fixed axis (1); It is characterized in that, described reduction box (5) is positioned at wheel hub steel ring (2), and described motor (3) is positioned at a side of reduction box (5) and is positioned at outside wheel hub steel ring (2); Motor (3) comprises stator (3a) and rotor (3b), and stator (3a) is fixedly connected with fixed axis (1), and rotor (3b) is positioned on fixed axis (1); Reduction box (5) comprises casing (5a), input gear axle (5b), output gear shaft (5c) and freewheel clutch (5d), casing (5a) is fixedly connected with fixed axis (1), input gear axle (5b) is connected with rotor (3b), and output gear shaft (5c) is fixedly connected with wheel hub steel ring (2); Between rotor (3b) and wheel hub steel ring (2), be connected by centrifugal clutch (4).
2. electric motor car variable speed drives wheel hub according to claim 1, is characterized in that, described motor (3) is slowspeed machine (3).
3. electric motor car variable speed drives wheel hub according to claim 1, is characterized in that, the input gear axle (5b) in described reduction box (5) and output gear shaft (5c) penetrate in casing (5a); Freewheel clutch (5d) comprises star-wheel (5d1) and the second outer ring (5d2), on the second outer ring (5d2), be fixed with the first gear (5f) being meshed with the tooth portion of input gear axle (5b), on star-wheel (5d1), be fixed with the second gear (5g) being meshed with the tooth portion of output gear shaft (5c); The second gear (5g) is positioned on casing (5a).
4. electric motor car variable speed drives wheel hub according to claim 3, is characterized in that, the output gear shaft (5c) in described reduction box (5) is 0.7～0.8 with input gear axle (5b) rotating speed ratio.
5. electric motor car variable speed drives wheel hub according to claim 3, it is characterized in that, between described input gear axle (5b) and output gear shaft (5c), be provided with fixed head (5e), described fixed head (5e) is fixedly connected with fixed axis (1), and described casing (5a) is fixedly connected with fixed head (5e).
6. according to the electric motor car variable speed drives wheel hub described in any one in claim 1 to 5, it is characterized in that, described rotor (3b) comprises a side cover (3d) that is enclosed within the first outer ring (3c) on stator (3a) and two and lays respectively at stator (3a) both sides, side cover (3d) is connected with fixed axis (1) by bearing (6), and side cover (3d) is fixedly connected with the first outer ring (3c).
7. electric motor car variable speed drives wheel hub according to claim 6, is characterized in that, between described side cover (3d) and fixed axis (1), is provided with the first sealing ring (7), and the first sealing ring (7) is positioned at bearing (6) outside.
8. electric motor car variable speed drives wheel hub according to claim 6, it is characterized in that, described wheel hub steel ring (2) comprises steel ring (2a), be positioned at the end cap (2c) that rousing of steel ring (2a) side covered (2b) and be positioned at steel ring (2a) opposite side, input gear axle (5b) is through end cap (2c), input gear axle (5b) is enclosed within on fixed axis (1), between input gear axle (5b) cover and fixed axis (1), be connected by bearing (6), between input gear axle (5b) and end cap (2c), be connected by bearing (6), between drum lid (2b) and fixed axis (1), be connected by bearing (6).
9. electric motor car variable speed drives wheel hub according to claim 8, is characterized in that, between the end cap (2c) of described wheel hub steel ring (2) and the side cover (3d) of motor (3), is provided with the second sealing ring (8).
10. electric motor car variable speed drives wheel hub according to claim 6, it is characterized in that, described centrifugal clutch (4) comprises connecting plate (4a) and is set in the ratchet (4b) on connecting plate (4a), on ratchet (4b), be hinged with ratchet (4c), between ratchet (4c) and connecting plate (4a), be also provided with spring (4d); Connecting plate (4a) is fixedly connected with motor side cover (3d), and input gear axle (5b) passes through spline joint with connecting plate (4a); Ratchet (4b) is fixedly connected with end cap (2c).
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| CN201410119255.XA CN103840604B (en) | 2014-03-27 | 2014-03-27 | Electric motor car variable speed drives wheel hub |
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| CN201410119255.XA CN103840604B (en) | 2014-03-27 | 2014-03-27 | Electric motor car variable speed drives wheel hub |
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| CN104482075A (en) * | 2014-12-15 | 2015-04-01 | 李跃岩 | Clutch and variable speed driving hub |
| CN107244377A (en) * | 2017-07-04 | 2017-10-13 | 李燊 | Electric car variable speed drive motor, wheel hub electric motor of electric vehicle and motor control method |
| CN107707074A (en) * | 2017-10-11 | 2018-02-16 | 江苏东航空机械有限公司 | A kind of motorcycle high-speed electric expreess locomotive |
| CN107804162A (en) * | 2016-09-08 | 2018-03-16 | 罗伯特·博世有限公司 | Variable speed drive system |
| CN108923580A (en) * | 2017-03-10 | 2018-11-30 | 蒋先正 | Gear-shifting wheel hub driving motor |
| CN111016629A (en) * | 2019-12-31 | 2020-04-17 | 西南大学 | Central driven double-motor integrated power system |
| CN111016626A (en) * | 2019-12-31 | 2020-04-17 | 西南大学 | Multi-motor driven integrated central driving system |
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| CN111016626A (en) * | 2019-12-31 | 2020-04-17 | 西南大学 | Multi-motor driven integrated central driving system |
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| CN103840604B (en) | 2016-09-28 |
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Effective date of registration: 20160520 Address after: 317000, Zhejiang, Linhai City, Jiangnan street, Xia Pu village, Chun Road Applicant after: Linhai Heshili Electric Technology Co.,Ltd. Address before: 318020 No. 76, Xintang garden, Huangyan District, Zhejiang, Taizhou Applicant before: Li Yueyan |
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