CN106374673A - Two-shift variable speed hub motor driving device - Google Patents
Two-shift variable speed hub motor driving device Download PDFInfo
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- CN106374673A CN106374673A CN201610842890.XA CN201610842890A CN106374673A CN 106374673 A CN106374673 A CN 106374673A CN 201610842890 A CN201610842890 A CN 201610842890A CN 106374673 A CN106374673 A CN 106374673A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention belongs to the technical field of electric transmission, and in particular relates to a two-shift variable speed hub motor driving device. Compared with the prior art, the two-shift variable speed hub motor driving device has the advantages that the power of a driving motor is transmitted to a rim by a speed reduction mechanism and a variable speed mechanism to drive a wheel to rotate, and a vehicle has good dynamic property by a stepless speed adjustment function of the motor; and the driving motor, the speed reduction mechanism, the variable speed mechanism and a braking mechanism are integrated in the rim. The switching of two shifts is achieved by manipulating a hydraulic actuating cylinder and combining a gear sleeve to move along an axial direction, and the transmission efficiency is improved; with an integrated design of structures such as the driving motor, a planet speed reduction mechanism, a planet variable speed mechanism and a brake, on one hand, a support element can be shared, the size is reduced, and on the other hand, integral disassembly and maintenance are facilitated.
Description
Technical field
The invention belongs to electric transmission technical field is and in particular to a kind of two grades of shift wheel hub motor driving means.
Background technology
Under New military transform background, based on the army material thought of " lighter, more motor-driven, more flexible " has become
Stream.React the fast reserve operations such as the urban operation tackled with the faster Vehicle De L'Avant Blinde By Creussot of deployment speed, peacekeeping in following ground force
Very important effect will be played in fighting with increasing low-intensity.Cross-country traveling ability is another of wheeled battlebus of new generation
Key technical feature, with the increase of universe mobility demand, the particularly operational need in plateau, mountain region, tableland, to wheeled
The all-terrain demand of battlebus is greatly improved.Various new running gears, the technological innovation of suspension system, substantially increase wheel
Formula battlebus by performance.Wheel hub drives possesses clear superiority: 1, can to replace traditional power total for In-wheel motor driving system
Become, simplify chassis structure, realize the maximization of interior space, make car load flexible layout;2nd, wheel motor unsprung mass is less, puts down
Pliable maneuverability more preferably, but takies partly internal space;3rd, driving-chain can be shortened, transmission efficiency is greatly improved, lift vehicle
Fuel economy and dynamic property;4th, real entirely driving in real time can be realized, by the Based Intelligent Control to driving force, be capable of leading
The function such as gravitation control and stability control;5th, possess speed difference turning function, can have more with all-wheel control system cooperation realization
" double control surface " of advantage controls, and realizes vehicle composite turning.In-wheel motor driving system is a new generation of China Vehicle De L'Avant Blinde By Creussot
Provide high performance driven Design scheme a focus.
Either in civil area still in military domain, abroad all carry out the long period around In-wheel motor driving
R&D work.The U.S. just have developed 6 × 6 electric vehicle test platforms, Sweden, Britain, Germany, South Africa, method early in 1986
State, Japan etc. have also successively carried out the research of hub drive system.China's In-wheel motor driving technical research starting is than abroad more relatively
Evening, but my army notices the potential advantages of wheel hub motor very early, continuously all arrange special topic in several five-year plans and give emphasis and prop up
Hold.Through early-stage Study, China's wheel hub (wheel side) motor-drive technique has had been provided with certain Research foundation, but with advanced abroad
Level is compared still certain gap, and technical scheme is one of them.In the confined space within wheel rim, integrated motor, speed change/
Reducing gear, brake, it is also desirable to considering radiating and lubricating, and the suspension between electric driving wheel and car body is connected, wheel
The selection of hub Motor drive overall plan directly determines the follow-up implementation of each subsystem component, also contributes to the property of system
Energy, reliability and manufacturing cost.
Content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is: how to provide a kind of two grades of speed-variating hub driving means, by driving electricity
The function of stepless speed regulation of machine, through reducing gear and two grades of gears, makes vehicle possess good dynamic property.The present invention solves
Another technical problem be using hydraulic actuation cylinder manipulate conjunction gear set be axially moveable, make conjunction gear set be in three differences
Position, corresponding one grade, two grades and three gears of neutral gear, realize gear switch, this gearshift structure is simple, integrated level is high,
Decrease fretting wear.The present invention solve the 3rd technical problem be how to realize planetary gear speed reducing mechanism, planet speed change mechanism,
The integrated design such as arrestment mechanism, one side support member shares, and is reduced in size, is on the other hand easy to integral demounting and dimension
Shield.
(2) technical scheme
For solving above-mentioned technical problem, the present invention provides a kind of two grades of shift wheel hub motor driving means, comprising: supporting
Axle 20;Along the support shaft 20 sequentially motor 1 of setting, planetary gear speed reducing mechanism 2, planet speed change mechanism 3, brake 21;And
It is arranged at the outside wheel rim 22 for forming driving means external frame profile;
Described planetary gear speed reducing mechanism 2 includes: the first sun gear 7, the first row carrier 8, the first gear ring 13b, the first row star-wheel
Group 9;
Described planet speed change mechanism 3 is used for two grades of speed changes, comprising: the first common planetary row 4, the second common planetary row 5
With hydraulic gear-shifting mechanism 6;First common planetary row 4 includes: the second sun gear 10, the second planet carrier 11, the second planetary gear set 12,
Second gear ring 13c;Second common planetary row 5 includes: the 3rd sun gear 16, the third line carrier 17, the 3rd gear ring 19, third planet
Wheel group 18;Gearshift 6 includes: hydraulic actuation mechanism 14, conjunction gear set 15;
The stator 1a of described motor 1 is connected with electric machine casing 25, and rotor 1b is connected with motor output shaft 26;
In described planetary gear speed reducing mechanism 2, the first sun gear 7 is connected with motor output shaft 26;The first row carrier 8 and second is too
Sun wheel 10 connection;First gear ring 13b of described planetary gear speed reducing mechanism 2 with described first common planetary row 4 the second gear ring 13c with
And first external toothing 13a constitute gear member 13;Gear member 13 is connected with hydraulic actuation mechanism rack 24, hydraulic actuation machine
Structure support 24 is connected with electric machine casing 25, maintains static;The first row star-wheel group 9 respectively with the first sun gear 7, the first gear ring 13b
Engagement;
In described planet speed change mechanism 3, the second sun gear 10 is connected with the first row carrier 8;Second planet carrier 11 and one end
3rd sun gear 16 connects, and the second planet carrier 11 other end is provided with the second external toothing 11a;3rd gear ring 19 has the 3rd external toothing
19a, it is often combined with the right tooth set 15b being in brake side in conjunction gear set 15;The third line carrier 17 and support shaft 20 and wheel
Rim 22 connects, output, and driving moment rotates;Second planetary gear set 12 is nibbled with the second sun gear 10, the second gear ring 13c respectively
Close;The third line star-wheel group 18 is engaged with the 3rd sun gear 16, the 3rd gear ring 19 respectively;
The hydraulic actuation mechanism 14 of described hydraulic gear-shifting mechanism 6 includes hydraulic cylinder 14a and push rod 14b, and push rod 14b promotes knot
Close tooth set 15 to be axially moveable, make the left tooth set 15a being in motor side in conjunction gear set 15 can be at three in the course of the work
Diverse location:
To motor Slideslip, left tooth set 15a is combined with the first external toothing 13a;
Centre position, left tooth set 15a is connectionless;
To brake Slideslip, left tooth set 15a is combined with the second external toothing 11a;
When described conjunction gear set 15 is to motor side shifting, left tooth covers 15a when the first external toothing 13a is combined, the 3rd gear ring
19 are braked, and planet speed change mechanism 3 is in one grade, realize vehicle low-grade location and travel;When described conjunction gear set 15 is to brake side
Mobile, when the second external toothing 11a is combined, the second common planetary arranges 5 the 3rd sun gear 16 and the 3rd gear ring 19 to left tooth set 15a
Connect, the overall revolution of the second common planetary row 5, planet speed change mechanism 3 is in two grades, realizes vehicle high gear and travel;When described
When conjunction gear set 15 is in an intermediate position, set 15a is connectionless for left tooth, and planet speed change mechanism 3 is in neutral gear;
Inner attrition piece in described brake 21 is connected with wheel hub frame 26 and transmission case body respectively with outside friction disc;
Described motor 1, planetary gear speed reducing mechanism 2, planet speed change mechanism 3 are coaxially arranged.
Wherein, described planetary gear speed reducing mechanism 2, the first common planetary row 4 and the second common planetary row 5 are common row
Star is arranged, and each includes a sun gear, a gear ring, a planet carrier and several planetary gears;Sun gear, gear ring and planet carrier
There is a common fixing rotary shaft, planetary gear is bearing in the planetary gear shaft being fixed on planet carrier, and sun gear external toothing,
Simultaneously with gear ring internal messing;Planetary gear set at least includes three planetary gears;When planet row operates, the row in empty set planet carrier
Star-wheel revolves round the sun around sun gear together also as planet carrier while around planetary gear shaft rotation.
Wherein, described motor 1 provides driving force, through planetary gear speed reducing mechanism 2 and planet speed change mechanism 3 driving moment
Rotate;Described brake 21 provides brake force, brakes wheel rim 22.
Wherein, described brake 21 is dry type side friction brake, no-clutch
Wherein, in work process, under a certain gear, motor 1 is in motoring condition, through planetary gear speed reducing mechanism 2
With planet speed change mechanism 3, impart power to wheel rim 22, driving moment rotates.
Wherein, the speed-change process of this device is: the hydraulic cylinder 14a of hydraulic gear-shifting mechanism 6 utilizes hydraulic drive push rod 14b,
Push rod 14b promotes conjunction gear set 15 to be axially moveable, and when described conjunction gear set 15 is moved to the left, left tooth covers 15a and the first external tooth
When circle 13a combines, the 3rd gear ring 19 is braked, and planet speed change mechanism 3 is in one grade, realizes vehicle low-grade location and travels;When described
Conjunction gear set 15 moves right, and when the second external toothing 11a is combined, the second common planetary arranges 5 the 3rd sun gear to left tooth set 15a
16 are connected with the 3rd gear ring 19, the overall revolution of the second common planetary row 5, and planet speed change mechanism 3 is in two grades, realizes vehicle high gear
Position travels;When described conjunction gear set 15 is in an intermediate position, set 15a is connectionless for left tooth, and planet speed change mechanism 3 is in neutral gear,
Unpowered output;The third line carrier 17 is connected with support shaft 20 and wheel rim 22, output, and driving moment rotates.
(3) beneficial effect
Compared with prior art, the function of stepless speed regulation by motor for the present invention, through reducing gear and speed change
Mechanism, makes vehicle possess good dynamic property;The present invention manipulates conjunction gear set using hydraulic actuation cylinder and is axially moveable, and makes combination
Tooth set is in three different positions, corresponding one grade, two grades and three gears of neutral gear, realizes gear switch, this gearshift is tied
Structure is simple, integrated level is high, decreases fretting wear.Additionally, the present invention is successfully realized planetary gear speed reducing mechanism, planetary speed-changing machine
The integrated design such as structure, brake, one side support member shares, and is reduced in size, is on the other hand easy to integral demounting and dimension
Shield.
Brief description
Fig. 1 is two grades of shift wheel hub motor driving means sketches of one kind of the present invention.
Fig. 2 is two grades of shift wheel hub motor driving means cross-sectional view of one kind of the present invention.
Specific embodiment
For making the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to the present invention's
Specific embodiment is described in further detail.
For solving problem of the prior art, the present invention provides a kind of two grades of shift wheel hub motor driving means, such as Fig. 1-Fig. 2
Shown, comprising: support shaft 20;Along the support shaft 20 sequentially motor 1 of setting, planetary gear speed reducing mechanism 2, planet speed change mechanism
3rd, brake 21;And it is arranged at the outside wheel rim 22 for forming driving means external frame profile;
Described planetary gear speed reducing mechanism 2 includes: the first sun gear 7, the first row carrier 8, the first gear ring 13b, the first row star-wheel
Group 9;
Described planet speed change mechanism 3 is used for two grades of speed changes, comprising: the first common planetary row 4, the second common planetary row 5
With hydraulic gear-shifting mechanism 6;First common planetary row 4 includes: the second sun gear 10, the second planet carrier 11, the second planetary gear set 12,
Second gear ring 13c;Second common planetary row 5 includes: the 3rd sun gear 16, the third line carrier 17, the 3rd gear ring 19, third planet
Wheel group 18;Gearshift 6 includes: hydraulic actuation mechanism 14, conjunction gear set 15;
The stator 1a of described motor 1 is connected with electric machine casing 25, and rotor 1b is connected with motor output shaft 26;
In described planetary gear speed reducing mechanism 2, the first sun gear 7 is connected with motor output shaft 26;The first row carrier 8 and second is too
Sun wheel 10 connection;First gear ring 13b of described planetary gear speed reducing mechanism 2 with described first common planetary row 4 the second gear ring 13c with
And first external toothing 13a constitute gear member 13;Gear member 13 is connected with hydraulic actuation mechanism rack 24, hydraulic actuation machine
Structure support 24 is connected with electric machine casing 25, maintains static;The first row star-wheel group 9 respectively with the first sun gear 7, the first gear ring 13b
Engagement;
In described planet speed change mechanism 3, the second sun gear 10 is connected with the first row carrier 8;Second planet carrier 11 and one end
3rd sun gear 16 connects, and the second planet carrier 11 other end is provided with the second external toothing 11a;3rd gear ring 19 has the 3rd external toothing
19a, it is often combined with the right tooth set 15b being in brake side in conjunction gear set 15;The third line carrier 17 and support shaft 20 and wheel
Rim 22 connects, output, and driving moment rotates;Second planetary gear set 12 is nibbled with the second sun gear 10, the second gear ring 13c respectively
Close;The third line star-wheel group 18 is engaged with the 3rd sun gear 16, the 3rd gear ring 19 respectively;
The hydraulic actuation mechanism 14 of described hydraulic gear-shifting mechanism 6 includes hydraulic cylinder 14a and push rod 14b, and push rod 14b promotes knot
Close tooth set 15 to be axially moveable, make the left tooth set 15a being in motor side in conjunction gear set 15 can be at three in the course of the work
Diverse location:
To motor Slideslip, left tooth set 15a is combined with the first external toothing 13a;
Centre position, left tooth set 15a is connectionless;
To brake Slideslip, left tooth set 15a is combined with the second external toothing 11a;
When described conjunction gear set 15 is to motor side shifting, left tooth covers 15a when the first external toothing 13a is combined, the 3rd gear ring
19 are braked, and planet speed change mechanism 3 is in one grade, realize vehicle low-grade location and travel;When described conjunction gear set 15 is to brake side
Mobile, when the second external toothing 11a is combined, the second common planetary arranges 5 the 3rd sun gear 16 and the 3rd gear ring 19 to left tooth set 15a
Connect, the overall revolution of the second common planetary row 5, planet speed change mechanism 3 is in two grades, realizes vehicle high gear and travel;When described
When conjunction gear set 15 is in an intermediate position, set 15a is connectionless for left tooth, and planet speed change mechanism 3 is in neutral gear;
Inner attrition piece in described brake 21 is connected with wheel hub frame 26 and transmission case body respectively with outside friction disc;
Described motor 1, planetary gear speed reducing mechanism 2, planet speed change mechanism 3 are coaxially arranged.
Wherein, described planetary gear speed reducing mechanism 2, the first common planetary row 4 and the second common planetary row 5 are common row
Star is arranged, and each includes a sun gear, a gear ring, a planet carrier and several planetary gears;Sun gear, gear ring and planet carrier
There is a common fixing rotary shaft, planetary gear is bearing in the planetary gear shaft being fixed on planet carrier, and sun gear external toothing,
Simultaneously with gear ring internal messing;Planetary gear set at least includes three planetary gears;When planet row operates, the row in empty set planet carrier
Star-wheel revolves round the sun around sun gear together also as planet carrier while around planetary gear shaft rotation.
Wherein, described motor 1 provides driving force, through planetary gear speed reducing mechanism 2 and planet speed change mechanism 3 driving moment
Rotate;Described brake 21 provides brake force, brakes wheel rim 22.
Wherein, described brake 21 is dry type side friction brake, no-clutch
Wherein, in work process, under a certain gear, motor 1 is in motoring condition, through planetary gear speed reducing mechanism 2
With planet speed change mechanism 3, impart power to wheel rim 22, driving moment rotates.
Wherein, the speed-change process of this device is: the hydraulic cylinder 14a of hydraulic gear-shifting mechanism 6 utilizes hydraulic drive push rod 14b,
Push rod 14b promotes conjunction gear set 15 to be axially moveable, and when described conjunction gear set 15 is moved to the left, left tooth covers 15a and the first external tooth
When circle 13a combines, the 3rd gear ring 19 is braked, and planet speed change mechanism 3 is in one grade, realizes vehicle low-grade location and travels;When described
Conjunction gear set 15 moves right, and when the second external toothing 11a is combined, the second common planetary arranges 5 the 3rd sun gear to left tooth set 15a
16 are connected with the 3rd gear ring 19, the overall revolution of the second common planetary row 5, and planet speed change mechanism 3 is in two grades, realizes vehicle high gear
Position travels;When described conjunction gear set 15 is in an intermediate position, set 15a is connectionless for left tooth, and planet speed change mechanism 3 is in neutral gear,
Unpowered output;The third line carrier 17 is connected with support shaft 20 and wheel rim 22, output, and driving moment rotates.
To describe the present invention with reference to specific embodiment in detail.
Embodiment
A kind of two grades of shift wheel hub motor driving means, as depicted in figs. 1 and 2, comprising: motor 1, planetary reduction gear
Mechanism 2, planet speed change mechanism 3, brake 21, support shaft 20, wheel rim 22;
Described planetary gear speed reducing mechanism 2, the first common planetary row 4 and the second common planetary row 5 are common planetary row, each
Including a sun gear, a gear ring, a planet carrier and several planetary gears;Sun gear, gear ring and planet carrier have one altogether
With fixing rotary shaft, planetary gear is bearing in the planetary gear shaft being fixed on planet carrier, and sun gear external toothing, simultaneously with tooth
Circle internal messing;Planetary gear set at least includes three planetary gears;When planet row operates, the planetary gear in empty set planet carrier around
Revolve round the sun around sun gear together also as planet carrier while planetary gear shaft rotation;
Described motor 1 provides driving force, rotates through planetary gear speed reducing mechanism 2 and planet speed change mechanism 3 driving moment;
Described brake 21 provides brake force, brakes wheel rim 22;
Described planetary gear speed reducing mechanism 2 includes: the first sun gear 7, the first row carrier 8, the first gear ring 13b, the first row star-wheel
Group 9;
Described planet speed change mechanism 3 is used for two grades of speed changes, and it mainly includes the first common planetary row 4, the second common planetary
Row 5 and hydraulic gear-shifting mechanism 6;First common planetary row 4 includes: the second sun gear 10, the second planet carrier 11, the second planetary gear set
12nd, the second gear ring 13c;Second common planetary row 5 includes: the 3rd sun gear 16, the third line carrier 17, the 3rd gear ring the 19, the 3rd
Planetary gear set 18;Gearshift 6 includes: hydraulic actuation mechanism 14, conjunction gear set 15;
The stator 1a of described motor 1 is connected with electric machine casing 25, and rotor 1b is connected with motor output shaft 26;
In described planetary gear speed reducing mechanism 2, the first sun gear 7 is connected with motor output shaft 26;The first row carrier 8 and second is too
Sun wheel 10 connection;First gear ring 13b of described planetary gear speed reducing mechanism 2 with described first common planetary row 4 the second gear ring 13c with
And first external toothing 13a be gear member 13 different piece;Gear member 13 is connected with hydraulic actuation mechanism rack 24, hydraulic pressure
Actuation mechanism support 24 is connected with electric machine casing 25, maintains static;The first row star-wheel group 9 respectively with the first sun gear 7, the first tooth
Circle 13b engagement;
In described planet speed change mechanism 3, the second sun gear 10 is connected with the first row carrier 8;Second planet carrier 11 and the 3rd
Sun gear 16 connects, and the second planet carrier 11 other end has the second external toothing 11a;3rd gear ring 19 has the 3rd external toothing 19a, its
Often be combined with the right tooth set 15b of conjunction gear set 15;The third line carrier 17 is connected with support shaft 20 and wheel rim 22, output, drives
Motor car wheel rotates;Second planetary gear set 12 is engaged with the second sun gear 10, the second gear ring 13c respectively;18 points of the third line star-wheel group
Do not engage with the 3rd sun gear 16, the 3rd gear ring 19;
The hydraulic actuation mechanism 14 of described hydraulic gear-shifting mechanism 6 includes hydraulic cylinder 14a and push rod 14b, and push rod 14b promotes knot
Close tooth set 15 to be axially moveable, make conjunction gear cover 15 and be in three diverse locations:
Slide to the left, left tooth set 15a is combined with the first external toothing 13a
Centre position, left tooth set 15a is connectionless
Slide to the right, left tooth set 15a is combined with the second external toothing 11a
When described conjunction gear set 15 is moved to the left, left tooth covers 15a when the first external toothing 13a is combined, the 3rd gear ring 19 quilt
Braking, planet speed change mechanism 3 is in one grade, realizes vehicle low-grade location and travels;When described conjunction gear set 15 moves right, left tooth set
When the second external toothing 11a is combined, the 3rd sun gear 16 of the second common planetary row 5 is connected 15a with the 3rd gear ring 19, and second is general
Logical planet row 5 is overall to turn round, and planet speed change mechanism 3 is in two grades, realizes vehicle high gear and travels;At described conjunction gear set 15
When centre position, left tooth set 15a is connectionless, and planet speed change mechanism 3 is in neutral gear;
Inner attrition piece in described brake 21 is connected with wheel hub frame 26 and transmission case body respectively with outside friction disc;
Described motor 1, planetary gear speed reducing mechanism 2, planet speed change mechanism 3 are coaxially arranged;
Described brake 21 is dry type side friction brake, no-clutch;
In work process, under a certain gear, motor 1 is in motoring condition, through planetary gear speed reducing mechanism 2 and planet
Gear 3, imparts power to wheel rim 22, and driving moment rotates;
The transmission principle of the present invention is that the hydraulic cylinder 14a of hydraulic gear-shifting mechanism 6 utilizes hydraulic drive push rod 14b, push rod
14b promotes conjunction gear set 15 to be axially moveable, and when described conjunction gear set 15 is moved to the left, left tooth covers 15a and the first external toothing 13a
In conjunction with when, the 3rd gear ring 19 is braked, and planet speed change mechanism 3 is in one grade, realize vehicle low-grade location travel;When described conjunction gear
Set 15 moves right, and with the second external toothing 11a is combined when, the second common planetary arranges 5 the 3rd sun gear 16 and the to left tooth set 15a
Three gear rings 19 connect, the overall revolution of the second common planetary row 5, and planet speed change mechanism 3 is in two grades, realizes vehicle high gear row
Sail;When described conjunction gear set 15 is in an intermediate position, set 15a is connectionless for left tooth, and planet speed change mechanism 3 is in neutral gear, no dynamic
Power exports;The third line carrier 17 is connected with support shaft 20 and wheel rim 22, output, and driving moment rotates.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, on the premise of without departing from the technology of the present invention principle, some improvement can also be made and deform, these improve and deform
Also should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of two grades of shift wheel hub motor driving means are it is characterised in that comprising: support shaft (20);Along support shaft (20)
The motor (1) of order setting, planetary gear speed reducing mechanism (2), planet speed change mechanism (3), brake (21);And it is arranged at outer
Portion is used for forming the wheel rim (22) of driving means external frame profile;
Described planetary gear speed reducing mechanism (2) includes: the first sun gear (7), the first row carrier (8), the first gear ring (13b), the first row
Star-wheel group (9);
Described planet speed change mechanism (3) is used for two grades of speed changes, comprising: the first common planetary row (4), the second common planetary row
And hydraulic gear-shifting mechanism (6) (5);First common planetary row (4) include: the second sun gear (10), the second planet carrier (11), second
Planetary gear set (12), the second gear ring (13c);Second common planetary row (5) includes: the 3rd sun gear (16), the third line carrier
(17), the 3rd gear ring (19), the third line star-wheel group (18);Gearshift (6) includes: hydraulic actuation mechanism (14), conjunction gear set
(15);
The stator (1a) of described motor (1) is connected with electric machine casing (25), and rotor (1b) is connected with motor output shaft (26);
In described planetary gear speed reducing mechanism (2), the first sun gear (7) is connected with motor output shaft (26);The first row carrier (8) and the
Two sun gears (10) connect;First gear ring (13b) of described planetary gear speed reducing mechanism (2) and described first common planetary row (4)
Second gear ring (13c) and the first external toothing (13a) constitute gear member (13);Gear member (13) and hydraulic actuation mechanism
Support (24) connects, and hydraulic actuation mechanism rack (24) is connected with electric machine casing (25), maintains static;The first row star-wheel group (9)
Engage with the first sun gear (7), the first gear ring (13b) respectively;
In described planet speed change mechanism (3), the second sun gear (10) is connected with the first row carrier (8);Second planet carrier (11) with
One end the 3rd sun gear (16) connects, and the second planet carrier (11) other end is provided with the second external toothing (11a);3rd gear ring (19) tool
Have the 3rd external toothing (19a), its with conjunction gear set (15) in be in the right tooth set (15b) of brake side and often combine;Third planet
Frame (17) is connected with support shaft (20) and wheel rim (22), output, and driving moment rotates;Second planetary gear set (12) is respectively
Engage with the second sun gear (10), the second gear ring (13c);The third line star-wheel group (18) respectively with the 3rd sun gear (16), the 3rd
Gear ring (19) engages;
The hydraulic actuation mechanism (14) of described hydraulic gear-shifting mechanism (6) includes hydraulic cylinder (14a) and push rod (14b), push rod (14b)
Promote conjunction gear set (15) to be axially moveable, make to be in the left tooth set (15a) of motor side in conjunction gear set (15) in work process
In can be at three diverse locations:
To motor Slideslip, left tooth set (15a) is combined with the first external toothing (13a);
Centre position, left tooth set (15a) is connectionless;
To brake Slideslip, left tooth set (15a) is combined with the second external toothing (11a);
When described conjunction gear set (15) is to motor side shifting, when left tooth set (15a) and the first external toothing (13a) combine, the 3rd tooth
Circle (19) is braked, and planet speed change mechanism (3) is in one grade, realizes vehicle low-grade location and travels;When described conjunction gear set (15) to
Brake side shifting, when left tooth set (15a) and the second external toothing (11a) combine, the 3rd sun gear of the second common planetary row (5)
(16) it is connected with the 3rd gear ring (19), the second common planetary row (5) integrally turns round, and planet speed change mechanism (3) is in two grades, realizes
Vehicle high gear travels;When described conjunction gear set (15) is in an intermediate position, left tooth set (15a) is connectionless, planetary speed-changing machine
Structure (3) is in neutral gear;
Inner attrition piece in described brake (21) is connected with wheel hub frame (26) and transmission case body respectively with outside friction disc;
Described motor (1), planetary gear speed reducing mechanism (2), planet speed change mechanism (3) are coaxially arranged.
2. two grades of shift wheel hub motor driving means as claimed in claim 1 are it is characterised in that described planetary reducer
Structure (2), the first common planetary row (4) and the second common planetary row (5) are common planetary and arrange, respective one sun gear of inclusion,
One gear ring, a planet carrier and several planetary gears;Sun gear, gear ring and planet carrier have a common fixing rotary shaft,
Planetary gear is bearing in the planetary gear shaft being fixed on planet carrier, and sun gear external toothing, simultaneously with gear ring internal messing;Planet
Wheel group at least includes three planetary gears;When planet row operates, the planetary gear in empty set planet carrier is around planetary gear shaft certainly
Revolve round the sun around sun gear together also as planet carrier while turning.
3. two grades of shift wheel hub motor driving means as claimed in claim 1 are it is characterised in that described motor (1) carries
For driving force, rotate through planetary gear speed reducing mechanism (2) and planet speed change mechanism (3) driving moment;Described brake (21) provides
Brake force, braking wheel rim (22).
4. two grades of shift wheel hub motor driving means as claimed in claim 1 are it is characterised in that described brake (21) is dry
Formula side friction brake, no-clutch.
5. two grades of shift wheel hub motor driving means as claimed in claim 1 are it is characterised in that in work process, a certain
Under gear, motor (1) is in motoring condition, through planetary gear speed reducing mechanism (2) and planet speed change mechanism (3), power is passed
Pass wheel rim (22), driving moment rotates.
6. two grades of shift wheel hub motor driving means as claimed in claim 1 are it is characterised in that the speed-change process of this device
For: the hydraulic cylinder (14a) of hydraulic gear-shifting mechanism (6) utilizes hydraulic drive push rod (14b), and push rod (14b) promotes conjunction gear set
(15) it is axially moveable, when described conjunction gear set (15) is moved to the left, when left tooth set (15a) and the first external toothing (13a) combine,
3rd gear ring (19) is braked, and planet speed change mechanism (3) is in one grade, realizes vehicle low-grade location and travels;When described conjunction gear set
(15) move right, when left tooth set (15a) and the second external toothing (11a) combine, the 3rd sun gear of the second common planetary row (5)
(16) it is connected with the 3rd gear ring (19), the second common planetary row (5) integrally turns round, and planet speed change mechanism (3) is in two grades, realizes
Vehicle high gear travels;When described conjunction gear set (15) is in an intermediate position, left tooth set (15a) is connectionless, planetary speed-changing machine
Structure (3) is in neutral gear, unpowered output;The third line carrier (17) is connected with support shaft (20) and wheel rim (22), output, drives
Motor car wheel rotates.
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CN108361328A (en) * | 2018-01-25 | 2018-08-03 | 北京长城华冠汽车科技股份有限公司 | Drive axle speed change system |
CN109606736A (en) * | 2018-12-06 | 2019-04-12 | 哈尔滨工业大学 | A kind of single-motor double swing rod swing mechanism, celestial body vehicle and moving method |
CN109681620A (en) * | 2019-01-03 | 2019-04-26 | 江麓机电集团有限公司 | A kind of electrically driven speed change device integrating heat radiation lubricating electric control braking |
CN110855073A (en) * | 2019-11-20 | 2020-02-28 | 山东理工大学 | Outer rotor electric wheel integrated structure based on non-pneumatic tire and assembling method |
CN116803729A (en) * | 2023-08-25 | 2023-09-26 | 北京理工大学 | Multi-gear speed-changing hub driving system |
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CN108361328A (en) * | 2018-01-25 | 2018-08-03 | 北京长城华冠汽车科技股份有限公司 | Drive axle speed change system |
CN109606736A (en) * | 2018-12-06 | 2019-04-12 | 哈尔滨工业大学 | A kind of single-motor double swing rod swing mechanism, celestial body vehicle and moving method |
CN109606736B (en) * | 2018-12-06 | 2020-11-06 | 哈尔滨工业大学 | Single-motor double-swing-rod slewing mechanism, planet vehicle and moving method |
CN109681620A (en) * | 2019-01-03 | 2019-04-26 | 江麓机电集团有限公司 | A kind of electrically driven speed change device integrating heat radiation lubricating electric control braking |
CN110855073A (en) * | 2019-11-20 | 2020-02-28 | 山东理工大学 | Outer rotor electric wheel integrated structure based on non-pneumatic tire and assembling method |
CN110855073B (en) * | 2019-11-20 | 2021-07-20 | 山东理工大学 | Outer rotor electric wheel integrated structure based on non-pneumatic tire and assembly method |
CN116803729A (en) * | 2023-08-25 | 2023-09-26 | 北京理工大学 | Multi-gear speed-changing hub driving system |
CN116803729B (en) * | 2023-08-25 | 2023-11-21 | 北京理工大学 | Multi-gear speed-changing hub driving system |
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