CN202674246U - Multi-speed transmission driving device for electric vehicle - Google Patents
Multi-speed transmission driving device for electric vehicle Download PDFInfo
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- CN202674246U CN202674246U CN2012203577318U CN201220357731U CN202674246U CN 202674246 U CN202674246 U CN 202674246U CN 2012203577318 U CN2012203577318 U CN 2012203577318U CN 201220357731 U CN201220357731 U CN 201220357731U CN 202674246 U CN202674246 U CN 202674246U
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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
Abstract
The utility model discloses a multi-speed transmission driving device for an electric vehicle. A multi-speed transmission mechanism and a driving motor are arranged in a sealing cavity of a box body together; a main shaft, a sub shaft and a variable-speed hub of the multi-speed transmission mechanism as well as a motor shaft of the driving motor are rotatably supported on a left end cover and a right end cover of the box body respectively; the right ends of the motor shaft and the main shaft are meshed with a primary driven gear through a primary driving gear; the left end of the sub shaft is used for outputting power; a rotating speed sensor is arranged at the left end of the motor shaft; a multi-gear contact switch is arranged at the left end of the variable-speed hub; and the right end of the variable-speed hub is connected with a shift driving device. According to the multi-speed transmission driving device disclosed by the utility model, the multi-speed transmission mechanism and the driving motor are fixedly together and designed integrally, so that the multi-speed transmission driving device has the capabilities of realizing the multi-speed transmission of the electric vehicle, increasing the running speed of the electric vehicle, improving the climbing capability of the electric vehicle, enhancing the endurance of the electric vehicle, enhancing the heat dissipation of the driving motor, improving the working efficiency of the driving motor, prolonging the service life of the driving motor, realizing the automatic speed variation through program control simultaneously, lowering the labor intensity of drivers and improving the safety.
Description
Technical field
The utility model relates to the transmission of vehicle field, particularly a kind of many grades of speed-changing driving devices of electric motor car.
Background technique
The drive unit of existing electric motor car has following kind usually:
A kind of for drive motor adds primary speed-down mechanism, the drive motor constant power adjustable-speed of this drive unit is low, needs the more margin of power for actual applying working condition excursion, and this is very uneconomic.The shortcoming of itself has: when 1, going up a slope and heavy duty when accelerating, electric current is larger, and power consumption is large and be short of power to being suitable for when going up a slope.During upward slope and heavy duty when accelerating, cause that easily electric current sharply increases, the drive motor inefficiency, and easily burn controller and motor, heavy-current discharge also directly affects the life-span of storage battery simultaneously; 2, the overall efficiency that travels under various road conditions is lower, and course continuation mileage is shorter; 3, acceleration performance poor, the climbing energy a little less than.
A kind ofly add two grades of gears for drive motor adds clutch, this drive unit must arrange clutch configuration, and transmission loss is larger, and system effectiveness is low, and complex structure, needs periodic replacement zero clutch parts, and cost is high; Although adopted two grades of speed changes, speed ratio differs larger between two grades, impact excessively in the shift process, riding comfort reduces.
The drive unit of two kinds of above-mentioned electric motor cars travel under the various road conditions that overall efficiency is lower, a little less than the grade ability, the poor situation of acceleration performance, cause the flying power of electric motor car relatively poor.And the drive motor of drive unit, transmission device and electric machine controller respectively are integrated, drive motor and transmission device must pass through assembly connection, electric machine controller is arranged on usually from the place of drive motor away from, by transmission line to the drive motor transmission of control signals, cause primary resistor to increase, Efficiency Decreasing, and when the design electric motor car, need consider respectively mounting point and the footprint of drive motor, transmission device, electric machine controller, cause the comprehensive Design difficulty of electric motor car integral body to increase, be unfavorable for the electric motor car global design.And, the drive motor of existing electric motor car is because of the reason of working environment, all adopt enclosed motor, motor is by airtight housings close, and the idle space of motor cavity is covered with air, and the heat transmitting medium is air, heat conduction path by air conduction to electric machine casing, its heat dissipation is relatively poor, has a strong impact on motor working efficiency and working life, causes equally course continuation mileage shorter.
Summary of the invention
The utility model purpose is the deficiency that exists for prior art, a kind of many grades of speed-changing driving devices of electric motor car are provided, it is by being co-located on described many grades of gears and drive motor in the Seal cage of a casing, the right-hand member of motor shaft and main shaft respectively extend through right end cap is positioned at the right lid of casing, connect by elementary driving gear pair, the overhanging left end cap that goes out casing of the left end of countershaft is used for outputting power, the motor shaft left end stretches out left end cap speed probe is installed, the left end of described speed change hub is installed many gears contact switch, the right-hand member of speed change hub connects the gearshift drive unit, form many grades of gears, the structure that drive motor is fixed together, and electric machine controller can also be fixedly mounted on the casing left end cap and form integrated design; It is simple and compact for structure, low cost of manufacture, can simply realize many grades of speed changes of electric motor car, the maximum gradeability that makes the highest speed of electric motor car travel and promote and satisfy electric motor car increases the flying power of electric motor car, can strengthen again the heat dissipation potential of drive motor, improve the drive motor working efficiency and increase the service life, simultaneously can also realize automatic speed changing by program control, reduce driver's labor intensity, Security also is improved.
The purpose of this utility model is achieved in that and comprises variable transmission mechanism, drive motor, described variable transmission mechanism adopts and comprises main shaft, countershaft, speed change hub and many many grades of gears to change gear pair, main shaft, respectively there is gear to be connected by shift fork with the speed change hub on the countershaft, described many grades of gears and drive motor are co-located in the Seal cage of a casing, the main shaft of described many grades of gears, countershaft, the motor shaft of speed change hub and drive motor is supported in the left side of casing rotationally, right end cap, the stator module of drive motor is fixed in a left side, right end cap, the three-phase winding leading-out wire of stator module stretches out left end cap, the rotor of drive motor is fixed on the motor shaft, the right-hand member of motor shaft and main shaft respectively extend through right end cap is positioned at the right lid of casing, on the extending end of motor shaft primary drive gear is installed, elementary driven gear is installed on the extending end of main shaft, primary drive gear and the engagement of elementary driven gear, the overhanging left end cap that goes out casing of the left end of countershaft is used for outputting power, the motor shaft left end stretches out left end cap speed probe is installed, the left end of described speed change hub is installed many gears contact switch, and the right-hand member of speed change hub connects the gearshift drive unit.
Described many grades of gears are four-speed gear shift mechanism, major and minor axle links to each other by four pairs of change gear pairs, wherein main shaft is provided with one grade of spline tooth, second gear master gear, fourth gear master gear difference axially locating empty set are on main shaft, the third gear master gear cooperates with main spindle multiple spline between second gear, fourth gear master gear, and can move axially with second gear or fourth gear master gear and circumferentially be fixedly connected with transmitting torque; Axially locating is set with one grade of pinion, third gear pinion on the countershaft, the second gear pinion between one grade, third gear pinion with the countershaft spline fitted, and can move axially with one grade or third gear pinion and circumferentially be fixedly connected with transmitting torque, the fourth gear pinion is fixed on the countershaft by spline, described one grade, second gear, third gear, fourth gear pinion often mesh with corresponding master gear respectively, the third gear master gear is connected with the speed change hub by the first shift fork, and the second gear pinion is connected with the speed change hub by the second shift fork.
The outside of described left end cap fixedly mounts an electric machine controller, electric machine controller covers with the controller shell that is fixedly connected on the left end cap, electric machine controller is electrically connected with three-phase winding leading-out wire, many gears contact switch of speed probe, stator module respectively, and electric machine controller is provided with for the lighting outlet that connects the travelling state signaling switch and the lighting outlet that is connected connecting the output power of motor regulator.
Described gearshift drive unit adopts the second motor, this second motor is installed on the casing, circumferentially fix the gearshift driven gear on the described speed change hub, one gearshift driving gear and the engagement of gearshift driven gear, the gearshift driving gear stretches out casing and is fixedly connected with the second motor output shaft, and the tie-in line of the second motor is electrically connected with electric machine controller.
Described the second motor is turbine and worm motor or stepper motor, and the output shaft of this turbine and worm motor or stepper motor circumferentially is fixedly connected with the axle of gearshift driving gear.
Manual control shift switch is set between described the second motor and the electric machine controller, and the second motor is electrically connected with electric machine controller by manually controlling shift switch.
Described gearshift drive unit adopts the manual shift rotating shaft, and described manual shift rotating shaft support is in left and right end cap, and its right-hand member is connected with the speed change hub by link arm, and its left end stretches out left end cap, is used for connecting shifting operating device.
The rotor of described drive motor adopts cast-aluminum rotor, and the axial end of cast-aluminum rotor is provided with some axially extended blades.
The terminal respectively soldering copper screw column of the three-phase winding leading-out wire of described stator module, the phase line hole by copper screw column and electric machine controller is fastenedly connected, and the gap between the left end cap of copper screw column and casing seals with insulating bush.
Described many gears contact switch comprises a moving contact and is provided with the fixed contact of a plurality of gears contact, described moving contact is eccentrically set on the left side of speed change hub, fixed contact is fixed on the left end cap, each gear contact on moving contact and the fixed contact is electrically connected with electric machine controller, rotates the speed change hub moving contact is contacted with a gear contact on the fixed contact respectively.
Adopt technique scheme, make to the utlity model has following advantage:
1. many grades of gears of the many grades of speed-changing driving devices of this electric motor car and drive motor are co-located in the Seal cage of a casing, the main shaft of described many grades of gears, countershaft, the motor shaft of speed change hub and drive motor is supported in the left side of casing rotationally, right end cap, the stator module of drive motor is fixed in a left side, right end cap, the three-phase winding leading-out wire of stator module stretches out left end cap, the rotor of drive motor is fixed on the motor shaft, the right-hand member of motor shaft and main shaft respectively extend through right end cap is positioned at the right lid of casing, on the extending end of motor shaft primary drive gear is installed, elementary driven gear is installed on the extending end of main shaft, the engagement of primary drive gear and elementary driven gear, the overhanging left end cap that goes out casing of the left end of countershaft is used for outputting power.Adopt many grades of gears the power of drive motor can be exported by the different shelves levels of conversion, realize many grades of speed changes of electric motor car, the maximum gradeability that makes the highest speed of electric motor car travel and promote and satisfy electric motor car, solve the traditional electrical motor-car and usually adopted one grade of speed reducing driving device, travel under the various road conditions that overall efficiency is lower, a little less than the grade ability, the poor situation of acceleration performance, thereby cause the relatively poor present situation of electric motor car flying power.Be co-located in the Seal cage of a casing because of described many grades of gears and drive motor simultaneously, can utilize being used for of injecting in the sealing chamber to lubricate the machine oil of many grades of gears as the heat eliminating medium of drive motor, by the gear rotation of many grades of gears and the effect of drive motor rotor, machine oil is splashed on the drive motor stator module surface, take away the heat that drive motor work produces, make the radiating efficiency of drive motor obtain larger raising, guarantee the working efficiency of drive motor and the working life of prolongation drive motor, improve the flying power of electric motor car.
2. described motor shaft left end stretches out left end cap installation speed probe, and the left end of described speed change hub is installed many gears contact switch, and the right-hand member of speed change hub connects the gearshift drive unit.By with speed probe, many gears contact switch, and the three-phase winding leading-out wire of the stator module of drive motor is electrically connected with electric machine controller, make the electric machine controller can be from speed probe, the rotating speed of the drive motor that three phase windings of stator module collect, the data such as drive motor real time execution phase current are processed, the real-time output torque of control drive motor, the driving electric motor car travels, and according to various road conditions and travelling state, drive many grades of gear shifts by the gearshift drive unit, the grade ability of the travelling speed of control electric motor car and enhancing electric motor car is improved the flying power of electric motor car.
3. the rotor of described drive motor adopts cast-aluminum rotor, and the axial end of cast-aluminum rotor is provided with some axially extended blades.These blades can be splashed to machine oil on the box body wall when rotor, take away the heat of casing, increased heat diffusion area, and electric machine controller is conducted to the heat of casing left end cap take away simultaneously, can effectively reduce the heat of electric machine controller, the normal operation of assurance electric machine controller, the operating life that prolongs electric machine controller.
4. described gearshift drive unit adopts the second motor, this second motor is installed on the casing, circumferentially fix the gearshift driven gear on the described speed change hub, one gearshift driving gear and the engagement of gearshift driven gear, the shaft extension of gearshift driving gear goes out casing and links to each other with the second motor, and the second motor is electrically connected with electric machine controller.Adopt motor as the gearshift drive unit, by motor controller controls the second motor operation, drive thus many grades of gears of speed change hub control and finish the gearshift action, can realize the automatic gear shifting speed changing of electric motor car.
The utility model with variable transmission mechanism, drive motor, electric machine controller integrated design together, and do not need clutch, transmission loss reduces, transmission efficiency is improved, and effectively reduce the cost of speed-change driving device of electric bicycle, reduced the speed-change driving device of electric bicycle footprint, for the comprehensive Design of electric motor car integral body provides advantage.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is plan view of the present utility model;
Fig. 3 is side view of the present utility model;
Fig. 4 is that the A-A of Fig. 3 is to sectional drawing;
Fig. 5 is that the B-B of Fig. 3 is to sectional drawing;
Fig. 6 is that the F-F of Fig. 3 is to sectional drawing;
Fig. 7 is that of the present utility model another implemented illustration;
Fig. 8 is the another enforcement illustration of gearshift drive unit of the present utility model.
In the accompanying drawing, 1 is regulator, and 2 is the progress signal switch, 3 are the signaling switch that falls back, and 4 is stop signal switch, and 5 is manually to control shift switch, 6 is many grades of gears, and 7 is moving contact, and 8 is the fourth gear pinion, 9 is the third gear pinion, and 10 is the second gear pinion, and 11 is one grade of pinion, 12 is countershaft, and 13 is the second gear master gear, and 14 is main shaft, 15 is the third gear master gear, and 16 is the fourth gear master gear, and 17 is elementary driven gear, 18 is primary drive gear, and 19 is drive motor, and 20 is one grade of spline tooth, 23 is controller shell, 24 is fixed contact, and 26 is left end cap, and 27 are the right lid, 28 is right end cap, 29 is box base, and 30 is speed probe, and 33 is the first shift fork, 34 is electric machine controller, 36 is three phase windings, and 37 is blade, and 38 is rotor, 39 is stator module, 40 is flat key, and 43 is motor shaft, and 47 is the second shift fork, 51 is insulating bush, 52 is the copper screw column, and 55 is the manual shift rotating shaft, and 56 is Returnning spring, 57 is the speed change hub, 68 are the gearshift driven gear, and 69 are the gearshift driving gear, and 70 is connecting plate, 71 is the second motor
Embodiment
Referring to Fig. 1 to Fig. 6, a kind of embodiment of many grades of speed-changing driving devices of electric motor car comprises variable transmission mechanism, drive motor 19 and is used for installing the casing of variable transmission mechanism, drive motor 19.Described casing comprises box base 29, left end cap 26, right end cap 28, the right lid 27, described left end cap 26, right end cap 28 lay respectively at box base about 29 and are fixedly connected with box base 29 by bolt, the right lid 27 is fixedly connected with right end cap 28 by bolt, between left end cap 26, right end cap 28 and the box base 29, be equipped with the sealing gasket sealing between the right lid 27 and the right end cap 28, make box base and left and right end cap, and Seal cage of the common formation of the right lid.Described variable transmission mechanism adopts and comprises main shaft 14, countershaft 12, speed change hub 57 and many many grades of gears 6 to change gear pair, respectively has gear and speed change hub 57 to be connected by shift fork on described main shaft 14, the countershaft 12.The many grades of gears 6 of the present embodiment are four-speed gear shift mechanism, main shaft 14, countershaft 12 links to each other by four pairs of change gear pairs, wherein main shaft 14 is provided with one grade of spline tooth 20, one grade of spline tooth 20 is structure as a whole with main shaft 14, by machine shaping on main shaft, second gear master gear 13, fourth gear master gear 16 difference axially locating empty sets are on main shaft 14, second gear master gear 13, fourth gear master gear 16 is respectively by packing ring and the spacing formation axially locating of jump ring, third gear master gear 15 is positioned at second gear master gear 13, with main shaft 14 spline fitted, and can move axially with second gear or fourth gear master gear and circumferentially be fixedly connected with transmitting torque between the fourth gear master gear 16; Axially locating is set with one grade of pinion 11 on the countershaft 12, third gear pinion 9, one grade of pinion 11, third gear pinion 9 is respectively by packing ring and the spacing formation axially locating of jump ring, second gear pinion 10 is positioned at one grade, between the third gear pinion with countershaft 12 spline fitted, and can move axially with one grade or third gear pinion and circumferentially be fixedly connected with transmitting torque, fourth gear pinion 8 circumferentially is fixed on the countershaft 12 by spline or singly-bound, fourth gear pinion 8 is provided with packing ring with third gear pinion 9, described one grade, second gear, third gear, the fourth gear pinion often meshes with corresponding master gear respectively, third gear master gear 15 is connected with speed change hub 57 by the first shift fork 33, the jaw of the first shift fork 33 is stuck in the circular groove of third gear master gear 15 and forms Spielpassung, the fork-tail empty set of the first shift fork 33 is on speed change hub 57, form in the cam path by guide finger insertion speed change hub 57 and be slidingly matched, second gear pinion 10 is connected with speed change hub 57 by the second shift fork 47, the jaw of the second shift fork 47 is stuck in the circular groove of second gear pinion 10 and forms Spielpassung, the fork-tail empty set of the second shift fork 47 is inserted by guide finger to form in the cam path of speed change hub 57 and is slidingly matched on speed change hub 57.Described many grades of gears and drive motor are co-located in the Seal cage of a casing, are used for the machine oil of the lubricated many grades of gears of perfusion in the sealing chamber.The motor shaft 43 of the main shaft 14 of described many grades of gears, countershaft 12, speed change hub 57 and drive motor is supported in left end cap 26, the right end cap 28 of casing rotationally, the two ends of main shaft 14, countershaft 12, motor shaft 43 cooperate with left end cap 26, right end cap 28 by bearing respectively, gap oil sealing sealing between countershaft 12 and motor shaft 43 and the left end cap 26, speed change hub 57 two ends directly are slidingly matched with left and right end cap.The stator module 39 of described drive motor is fixed in left and right end cap, left end cap 26, right end cap 28 are provided with seam, stator module 39 is fixed by the seam location and with bolt, and the three-phase lighting outlet of three phase windings 36 of stator module stretches out left end cap 26, is used for being electrically connected with electric machine controller 34.The rotor 38 of drive motor is fixed on the motor shaft 43, rotor 38 and motor shaft 43 can be circumferentially fixing with flat key 40, also available spline is circumferentially fixing, also can adopt interference fit or be welded and fixed, the rotor 38 of the drive motor of the present embodiment adopts cast-aluminum rotor, and the axial end of cast-aluminum rotor is provided with some axially extended blades 37, during rotor 38 rotation, these blades 37 can be splashed to machine oil on stator and the box body wall and take away heat, improve the cooling-down effect of motor.Perhaps, the rotor 38 of drive motor also can adopt the rotor that is provided with permanent magnet, and permanent magnet is fixed on the cylindrical of rotor.The right-hand member of described motor shaft 43 and main shaft 14 respectively extend through right end cap 28 is positioned at the right lid 27 of casing, primary drive gear 18 is installed on the extending end of motor shaft 43, elementary driven gear 17 is installed on the extending end of main shaft 14, primary drive gear 18 and elementary driven gear 17 engagements, the moment of torsion of drive motor output is passed to the main shaft 14 of many grades of gears, main shaft 14 passes to countershaft 12 by gear pair with moment of torsion, and the overhanging left end cap 26 that goes out casing of the left end of countershaft 12 is used for outputting power.Motor shaft 43 left ends stretch out left end cap 26 speed probe 30 are installed, the speed probe 30 of the present embodiment adopts photoelectric encoder, the code-disc of photoelectric encoder is installed on the motor shaft 43 and rotates with motor shaft, and the signal supervisory instrument of photoelectric encoder is installed in and is used on the left end cap 26 being electrically connected with electric machine controller 34; Perhaps speed probe 30 adopts magnetism encoder also can reach effect same.The left end of described speed change hub 57 is installed many gears contact switch, and many gears contact switch is used for being electrically connected with electric machine controller.Many gears contact switch of the present embodiment comprises a moving contact 7 and is provided with the fixed contact 24 of a plurality of gears contact, described moving contact 7 is eccentrically set on the left side of speed change hub 57, fixed contact 24 is fixed on the left end cap 26, corresponding with the left side of speed change hub 57, gap between fixed contact 24 and the left end cap 26 seals with seal ring, each gear contact on moving contact 7 and the fixed contact 24 is electrically connected with electric machine controller 34, because the many grades of gears of the present embodiment are four-speed gear shift mechanism, therefore on the fixed contact 24 four gear contacts are set, namely one to the contact of fourth gear, rotate speed change hub 57 and can make moving contact 7 mobile positions contact connection circuit with a gear contact on the fixed contact 24, transmit these gear signal to electric machine controller 34.The right-hand member of described speed change hub 57 connects the gearshift drive unit, the gearshift drive unit of the present embodiment adopts the second motor 71, this second motor 71 is fixed on the casing by connecting plate 70, the right-hand member of speed change hub 57 is fixing gearshift driven gear 68 circumferentially, one gearshift driving gear 69 and 68 engagements of gearshift driven gear, gearshift driving gear 69 is fixedly connected with the second motor 71 output shafts, and the second motor 71 is electrically connected with electric machine controller 34.For the installation of convenient the second motor 71 with to speed change hub 57 outputting powers, described the second motor 71 adopts the turbine and worm motor, the worm gear shaft of this turbine and worm motor circumferentially is fixedly connected with the axle of gearshift driving gear 69, it is circumferentially fixed and usually adopts spline to fix, and also can adopt singly-bound to fix.Perhaps the second motor 71 also can adopt stepper motor, and the output shaft of this whirlpool stepper motor circumferentially is fixedly connected with the axle of gearshift driving gear.Collect the tach signal of drive motor 19 when electric machine controller 34, send instruction by processing backward the second motor 71, the second motor 71 is accepted to carry out work after the instruction, drives 57 rotations of speed change hub and carries out self shifter.The outside of the left end cap 26 of the present embodiment fixedly mounts an electric machine controller 34, electric machine controller 34 is fixedly connected with left end cap 26 by bolt, the controller shell 23 that electric machine controller 34 usefulness are bolted to connection on left end cap 26 covers, and makes the integral body of electric machine controller 34 and being integrally formed of casing that variable transmission mechanism, drive motor 19 have been installed.Electric machine controller 34 is electrically connected with three phase windings, 36 lighting outlets, many gears contact switch of speed probe 30, stator module 39 respectively, and electric machine controller 34 is provided with for the lighting outlet that connects the travelling state signaling switch and the lighting outlet that is connected connecting output power of motor regulator 1.Three phase windings 36 of described stator module 39 are drawn the terminal respectively soldering copper screw column 52 of triple line, be fastenedly connected by the phase line hole of copper screw column 52 with electric machine controller 34, and use nut check, gap between the left end cap 26 of copper screw column 52 and casing seals with insulating bush 51, described travelling state signaling switch comprises progress signal switch 2, signaling switch 3 falls back, stop signal switch 4, three signaling switches are electrically connected with electric machine controller 34 respectively, by opening progress signal switch 2, or the signaling switch 3 that falls back, or stop signal switch 4 is set sense of rotation or the no work of drive motor.Described electric machine controller 34 is electrically connected with a regulator 1 that is used for the regulating electric machine output power, regulates the size of drive motor 19 output powers by this regulator 1 regulating voltage or resistance.
The utility model is not limited to above-described embodiment, can be according to user's supporting needs, assembling many grades of gears 6, drive motor 19, speed probe 30, on the casing of many grades of speed-changing driving devices of the electric motor car of many gears contact switch, reserve three phase windings, 36 lighting outlets of drive motor 19 stator modules 39, the lighting outlet of speed probe 30, the signaling line of many gears contact switch, for being electrically connected with electric machine controller 34, the user can be according to the needs of oneself, electric machine controller 34 is installed on the casing, perhaps electric machine controller 34 is installed in other place of electric motor car.
Referring to Fig. 7, the utility model not only is confined to above-described embodiment, manual control shift switch 5, the second motor 71 can also be set between described the second motor 71 and the electric machine controller 34 be electrically connected with electric machine controller 34 by manually controlling shift switch 5.Change the sense of rotation of the second motor 71 by handling manual control shift switch 5, drive 57 actions of speed change hub, realize gearshift.
Referring to Fig. 8, the utility model not only is confined to above-described embodiment, described gearshift drive unit also can adopt manual shift rotating shaft 55, described manual shift rotating shaft 55 is supported in left end cap 26, right end cap 28, adopt the usual link arm that uses to be connected between the right-hand member of manual shift rotating shaft 55 and the speed change hub 57, driving 57 actions of speed change hub by rotation manual gearshift rotating shaft 55 shifts gears, the right-hand member of manual shift rotating shaft 55 is equipped with Returnning spring 56, can reset after making manual shift rotating shaft 55 finish the gearshift action, the left end of manual shift rotating shaft 55 stretches out left end cap 26, be used for connecting shifting operating device, the matching gap oil sealing sealing of manual shift rotating shaft 55 and left end cap 26.
When the utility model uses, by the progress signal switch of operational drive state signal switch, or the signaling switch that falls back, or stop signal switch, determine that vehicle is in the state of forward gear, reverse gear or parking shift.When electric motor car stops to travel, the speed change hub rotates, stir the third gear master gear and move to not position with second gear master gear and the engagement of fourth gear master gear, stir the second gear pinion and move to not position with one grade of pinion and the engagement of third gear pinion, main shaft can not be to the countershaft transferring power.When vehicle advances, motor turns clockwise, when electric motor car adopts one grade to travel, the speed change hub rotates, stir the third gear master gear and move to not position with second gear master gear and the engagement of fourth gear master gear, stir second gear pinion and one grade of pinion engagement, drive motor power passes through primary drive gear, elementary driven gear, main shaft, one grade of spline tooth, one grade of pinion, second gear pinion pass to countershaft, one grade of rotating speed of countershaft output.When electric motor car adopts second gear to travel, the speed change hub rotates, stirring the third gear master gear moves with the second gear master gear and meshes, stir the second gear pinion and move to not position with one grade of pinion and the engagement of third gear pinion, drive motor power is through primary drive gear, elementary driven gear, main shaft, third gear master gear, second gear master gear, second gear pinion pass to countershaft, countershaft output second gear rotating speed.When electric motor car adopts third gear to travel, the speed change hub rotates, stir the third gear master gear and move to not position with second gear master gear and the engagement of fourth gear master gear, stirring the second gear pinion moves with the third gear pinion and meshes, drive motor power is through primary drive gear, elementary driven gear, main shaft, third gear master gear, third gear pinion, second gear pinion pass to countershaft, countershaft output third gear rotating speed.When electric motor car adopts fourth gear to travel, the speed change hub rotates, stir the engagement of third gear master gear and fourth gear master gear, the second gear pinion does not mesh with one grade of pinion and third gear pinion, drive motor power is through primary drive gear, elementary driven gear, main shaft, third gear master gear, fourth gear master gear, fourth gear pinion pass to countershaft, countershaft output fourth gear rotating speed.During vehicle backing, when electric motor car adopts one grade to travel, the speed change hub rotates, stir the third gear master gear and move to not position with second gear master gear and the engagement of fourth gear master gear, stir second gear pinion and one grade of pinion engagement, drive motor is rotated counterclockwise, and power is through primary drive gear, elementary driven gear, main shaft, one grade of spline tooth, one grade of pinion, second gear pinion pass to countershaft, and one grade of rotating speed of countershaft output is realized reversing.
Claims (10)
1. many grades of speed-changing driving devices of an electric motor car, comprise variable transmission mechanism, drive motor, it is characterized in that: described variable transmission mechanism adopts and comprises main shaft, countershaft, speed change hub and many many grades of gears to change gear pair, main shaft, respectively there is gear to be connected by shift fork with the speed change hub on the countershaft, described many grades of gears and drive motor are co-located in the Seal cage of a casing, the main shaft of described many grades of gears, countershaft, the motor shaft of speed change hub and drive motor is supported in the left side of casing rotationally, right end cap, the stator module of drive motor is fixed in a left side, right end cap, the three-phase winding leading-out wire of stator module stretches out left end cap, the rotor of drive motor is fixed on the motor shaft, the right-hand member of motor shaft and main shaft respectively extend through right end cap is positioned at the right lid of casing, on the extending end of motor shaft primary drive gear is installed, elementary driven gear is installed on the extending end of main shaft, primary drive gear and the engagement of elementary driven gear, the overhanging left end cap that goes out casing of the left end of countershaft is used for outputting power, the motor shaft left end stretches out left end cap speed probe is installed, the left end of described speed change hub is installed many gears contact switch, and the right-hand member of speed change hub connects the gearshift drive unit.
2. many grades of speed-changing driving devices of electric motor car according to claim 1, it is characterized in that: described many grades of gears are four-speed gear shift mechanism, major and minor axle links to each other by four pairs of change gear pairs, wherein main shaft is provided with one grade of spline tooth, second gear master gear, fourth gear master gear difference axially locating empty set are on main shaft, the third gear master gear cooperates with main spindle multiple spline between second gear, fourth gear master gear, and can move axially with second gear or fourth gear master gear and circumferentially be fixedly connected with transmitting torque; Axially locating is set with one grade of pinion, third gear pinion on the countershaft, the second gear pinion between one grade, third gear pinion with the countershaft spline fitted, and can move axially with one grade or third gear pinion and circumferentially be fixedly connected with transmitting torque, the fourth gear pinion is fixed on the countershaft by spline, described one grade, second gear, third gear, fourth gear pinion often mesh with corresponding master gear respectively, the third gear master gear is connected with the speed change hub by the first shift fork, and the second gear pinion is connected with the speed change hub by the second shift fork.
3. many grades of speed-changing driving devices of electric motor car according to claim 1, it is characterized in that: the outside of described left end cap fixedly mounts an electric machine controller, electric machine controller covers with the controller shell that is fixedly connected on the left end cap, electric machine controller is electrically connected with three-phase winding leading-out wire, many gears contact switch of speed probe, stator module respectively, and electric machine controller is provided with for the lighting outlet that connects the travelling state signaling switch and the lighting outlet that is connected connecting the output power of motor regulator.
4. many grades of speed-changing driving devices of electric motor car according to claim 1, it is characterized in that: described gearshift drive unit adopts the second motor, this second motor is installed on the casing, circumferentially fix the gearshift driven gear on the described speed change hub, one gearshift driving gear and the engagement of gearshift driven gear, the gearshift driving gear stretches out casing and is fixedly connected with the second motor output shaft, and the tie-in line of the second motor is electrically connected with electric machine controller.
5. many grades of speed-changing driving devices of electric motor car according to claim 4, it is characterized in that: described the second motor is turbine and worm motor or stepper motor, and the output shaft of this turbine and worm motor or stepper motor circumferentially is fixedly connected with the axle of gearshift driving gear.
6. according to claim 4 or many grades of speed-changing driving devices of 5 described electric motor cars, it is characterized in that: manual control shift switch is set between described the second motor and the electric machine controller, and the second motor is electrically connected with electric machine controller by manually controlling shift switch.
7. many grades of speed-changing driving devices of electric motor car according to claim 1, it is characterized in that: described gearshift drive unit adopts the manual shift rotating shaft, described manual shift rotating shaft support is in left and right end cap, its right-hand member is connected with the speed change hub by link arm, its left end stretches out left end cap, is used for connecting shifting operating device.
8. many grades of speed-changing driving devices of electric motor car according to claim 1 is characterized in that: the rotor of described drive motor adopts cast-aluminum rotor, and the axial end of cast-aluminum rotor is provided with some axially extended blades.
9. many grades of speed-changing driving devices of electric motor car according to claim 1, it is characterized in that: the terminal respectively soldering copper screw column of the three-phase winding leading-out wire of described stator module, phase line hole by copper screw column and electric machine controller is fastenedly connected, and the gap between the left end cap of copper screw column and casing seals with insulating bush.
10. many grades of speed-changing driving devices of electric motor car according to claim 1, it is characterized in that: described many gears contact switch comprises a moving contact and is provided with the fixed contact of a plurality of gears contact, described moving contact is eccentrically set on the left side of speed change hub, fixed contact is fixed on the left end cap, each gear contact on moving contact and the fixed contact is electrically connected with electric machine controller, rotates the speed change hub moving contact is contacted with a gear contact on the fixed contact respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203577318U CN202674246U (en) | 2012-07-23 | 2012-07-23 | Multi-speed transmission driving device for electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203577318U CN202674246U (en) | 2012-07-23 | 2012-07-23 | Multi-speed transmission driving device for electric vehicle |
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| CN202674246U true CN202674246U (en) | 2013-01-16 |
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| CN2012203577318U Expired - Fee Related CN202674246U (en) | 2012-07-23 | 2012-07-23 | Multi-speed transmission driving device for electric vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286725A (en) * | 2015-05-27 | 2017-01-04 | 向永川 | Automatic transmission |
| CN106545619A (en) * | 2017-01-11 | 2017-03-29 | 江苏泰隆减速机股份有限公司 | Steel mill's milling train steep curling reductor |
| CN107650655A (en) * | 2017-07-10 | 2018-02-02 | 楼建良 | A kind of high speed electric power train in vehicle application device of new structure |
| CN108702040A (en) * | 2016-01-15 | 2018-10-23 | 法雷奥电机设备公司 | Electric rotating machine with improved cooling |
-
2012
- 2012-07-23 CN CN2012203577318U patent/CN202674246U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286725A (en) * | 2015-05-27 | 2017-01-04 | 向永川 | Automatic transmission |
| CN106286725B (en) * | 2015-05-27 | 2018-12-21 | 高利央 | Automatic transmission |
| CN108702040A (en) * | 2016-01-15 | 2018-10-23 | 法雷奥电机设备公司 | Electric rotating machine with improved cooling |
| CN106545619A (en) * | 2017-01-11 | 2017-03-29 | 江苏泰隆减速机股份有限公司 | Steel mill's milling train steep curling reductor |
| CN107650655A (en) * | 2017-07-10 | 2018-02-02 | 楼建良 | A kind of high speed electric power train in vehicle application device of new structure |
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