CN204828629U - Selection shelves mechanism of electric motor car two speed transmission - Google Patents
Selection shelves mechanism of electric motor car two speed transmission Download PDFInfo
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- CN204828629U CN204828629U CN201520515177.5U CN201520515177U CN204828629U CN 204828629 U CN204828629 U CN 204828629U CN 201520515177 U CN201520515177 U CN 201520515177U CN 204828629 U CN204828629 U CN 204828629U
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Abstract
The utility model discloses a selection shelves mechanism of electric motor car two speed transmission, dial including the selection shelves and insert (15), selection shelves pull rod (16), selection shelves gear (17), selection shelves subassembly (18), gear position cam (19) and apical tooth spring (25), selection shelves pull rods (16) are equipped with the selection shelves in proper order along the axial and dial and insert locating hole (164), first spacing gasket (30), spacing draw -in groove (161), helical pitch groove (162), spacing hole (163), gear position cam (19) along helical pitch groove (162) axial motion, and its extreme position who deviates from apical tooth spring (25) motion is for spacing draw -in groove (161), selection shelves gears (17) and the one end fixed connection who selects shelves subassemblies (18), just selection shelves gears (17) are along selecting 16 rotations in a circumferential direction on the shelves pull rod. The utility model discloses a gearshift can realize that two grades are shifted convenient to use.
Description
Technical field
Can be used for a gear selection mechanism for electric motor car two speed transmission, belong to electric motor car variable speed drives and drive technology field.
Background technique
For making motor be operated in efficient district as much as possible, the application of the electric motor car of equipment speed changer is just increasing.But the electric automobiles such as existing electro-tricycle, electric vehicle, take hand-pulling type shifting apparatus more.This will cause following several problem:
1, existing electric motor car hand-pulling type shifting apparatus, without synchronization motion in gearshift procedure, this will cause occurring in gearshift procedure beating the problems such as tooth, impact, pause and transition in rhythm or melody, noise, and easily cause the damage of gear or gearbox.
2, existing electric motor car hand-pulling type shifting apparatus, gear-shifting actuating mechanism is made up of the mechanism such as bracing wire, spring, and cannot judge whether gear shift puts in place, and time one length will cause, the pure mechanical mechanism such as bracing wire, spring is aging or loosening, causes out of supply in running process or changes and do not perform.
3, existing electric motor car hand-pulling type shifting apparatus, needs by brute spring to realize locking gear level, in the process of moving, easily occurs hanging motionless shelves, or miss Shift gear moment in upward slope process.
4, existing electric motor car hand-pulling type shifting apparatus, does not have clutch device, cannot accomplish that power interruption or power are connected in gearshift procedure.Therefore, in During manual operation, need more manual strength, this affects car load handling and driving experience undoubtedly.
Model utility content
Model utility object: in order to overcome the deficiencies in the prior art, the utility model provides a kind of gear selection mechanism of electric motor car two speed transmission, and the electric motor car having installed this speed changer can realize gear shift more easily, and improves the working life of speed changer.
Technological scheme: for achieving the above object, the technical solution adopted in the utility model is:
A gear selection mechanism for electric motor car two speed transmission, described speed changer comprises driving mechanism, reducing gear, gearshift, gear selection mechanism, gear-shifting actuating mechanism, signals collecting mechanism and control module, wherein:
Described driving mechanism is used for controlling electric motor car rotating speed according to control module, and this rotating speed is passed to reducing gear;
Described reducing gear is used for the reduction to driving mechanism rotating speed, and the rotating speed after reducing is passed to gearshift;
Described control module is for controlling the operation of gear-shifting actuating mechanism and driving mechanism;
Described gear-shifting actuating mechanism, according to the control of control module, drives gear selection mechanism to carry out high and low shift gear selecting;
Described gear selection mechanism is used for carrying out high and low shift gear selecting according to the driving of gear-shifting actuating mechanism, and institute's gear selecting is passed to gearshift;
The shelves that described gearshift is chosen according to gear selection mechanism, pass to output terminal tire by the rotating speed of reducing gear transmission.
Described gear selection mechanism comprises gear selecting and dials slotting (15), gear selecting pull bar (16), gear selecting gear (17), gear selecting assembly (18), gear positions cam (19) and apical tooth spring (25), and described gear selecting pull bar (16) is provided with gear selecting vertically successively and dials plug in positioning hole (164), the first spacing shim (30), spacing draw-in groove (161), helical pitch groove (162), spacing hole (163); Described gear selecting is dialled slotting (15) and is dialled plug in positioning hole (164) and gear selecting pull bar (16) by gear selecting and be connected to a fixed, described gear selecting is dialled between slotting (15) and the first spacing shim (30) and is provided with gear shift spring (24) simultaneously, and described gear shift spring (24) is enclosed within gear selecting pull bar 16, and described first spacing shim (30) is fixedly connected on shell (1); Described gear selecting gear (17), gear selecting assembly (18), gear positions cam (19) and apical tooth spring (25) are enclosed within the gear selecting pull bar (16) of the first spacing shim (30) opposite side successively; And cotter pin (29) is installed in the spacing hole (163) of described gear selecting pull bar (16), be provided with the second spacing shim (28) between described apical tooth spring (25) and cotter pin (29); Described gear positions cam (19) is along helical pitch groove (162) axial motion, and its limit position deviating from that apical tooth spring (25) moves is spacing draw-in groove (161); Described gear selecting gear (17) is fixedly connected with one end of gear selecting assembly (18), and described gear selecting gear (17) rotates in a circumferential direction along gear selecting pull bar 16; The other end of described gear selecting assembly (18) is rotationally connected along gear positions cam (19) circumference simultaneously.
Preferred: described gear positions cam (19) to be provided with high-grade position (191), neutral position (192), low gear position (193), and described gear positions cam (19) is slidably connected by helical pitch hole (194) and helical pitch groove (162).
Preferred: described gear selecting is dialled slotting (15) and is provided with and dials plug in positioning hole (151), described gear selecting is dialled slotting (15) and is dialled plug in positioning hole (164) by the first bearing pin gear selecting dialled slotting (15) and gear selecting pull bar (16) is connected to a fixed through dialling plug in positioning hole (151) and gear selecting.
Beneficial effect: the gear selection mechanism of a kind of electric motor car two speed transmission that the utility model provides, compared to existing technology, has following beneficial effect:
Gearshift of the present utility model dials slotting (15), gear selecting pull bar (16), gear selecting gear (17), gear selecting assembly (18), gear positions cam (19) and apical tooth spring (25) because described gear selection mechanism comprises gear selecting, and described gear selecting pull bar (16) is provided with gear selecting vertically successively and dials plug in positioning hole (164), the first spacing shim (30), spacing draw-in groove (161), helical pitch groove (162), spacing hole (163); Described gear selecting is dialled slotting (15) and is dialled plug in positioning hole (164) and gear selecting pull bar (16) by gear selecting and be connected to a fixed, described gear selecting is dialled between slotting (15) and the first spacing shim (30) and is provided with gear shift spring (24) simultaneously, and described gear shift spring (24) is enclosed within gear selecting pull bar 16, and described first spacing shim (30) is fixedly connected on shell (1); Described gear selecting gear (17), gear selecting assembly (18), gear positions cam (19) and apical tooth spring (25) are enclosed within the gear selecting pull bar (16) of the first spacing shim (30) opposite side successively; And cotter pin (29) is installed in the spacing hole (163) of described gear selecting pull bar (16), be provided with the second spacing shim (28) between described apical tooth spring (25) and cotter pin (29); Described gear positions cam (19) is along helical pitch groove (162) axial motion, and its limit position deviating from that apical tooth spring (25) moves is spacing draw-in groove (161); Described gear selecting gear (17) is fixedly connected with one end of gear selecting assembly (18), and described gear selecting gear (17) rotates in a circumferential direction along gear selecting pull bar 16; The other end of described gear selecting assembly (18) is rotationally connected along gear positions cam (19) circumference simultaneously, therefore, dials pulling of slotting (15) realize choosing of high and low shift by gear selecting.
The utility model adopts electric gear to instead of gear shift manually, makes gear shift more convenient.The shift pattern cam structure that design adopts, the position of each gear of accurate location, makes gear rest on active position exactly, prevent out of supply, engage a gear is not in place; The signal pickup assembly that design adopts, can Real-time Obtaining speed changer output speed, coordinates motor input speed, judges Shift gear moment by controller, can accomplish in gearshift procedure, not play tooth, not pause and transition in rhythm or melody, do not impact.
Accompanying drawing explanation
Fig. 1 Fig. 1 is structural representation of the present utility model.
Fig. 2 is each exploded perspective erection drawing of the present utility model.
Fig. 3 is the decomposition chart of gear position male wheel 19 in Fig. 1.
Fig. 4 is the three-dimensional assembling exploded view of shift shaft 5 in Fig. 1.
Fig. 5 is the three-dimensional assembly structure figure of vehicle speed signal 23, gear positions signal 26, signal receiving circuit plate 27.
Fig. 6, be low grade, neutral gear, high-grade three-dimensional assembly structure figure.
Fig. 7 is low grade, neutral gear, high-grade three-dimensional assembly structure figure.
Fig. 8 is low grade, neutral gear, high-grade three-dimensional assembly structure figure.
Wherein, 1-shell, 2-differential mechanism, 3-differential mechanism output gear, 4-shift shaft output gear, 5-shift shaft, 6-high speed gear, 7-top gear input gear, 8-bootom gear, 9-bottom gear input gear, 10-deboost axle input gear, 11-drive motor input gear, 12-deboost axle, 13-drive motor input shaft, 14-gear selecting spline, 141-spline tooth, 142-spline tooth, 15-gear selecting is dialled slotting, 151-positioning hole, 16-gear selecting pull bar, the spacing draw-in groove of 161-, 162-helical pitch groove, 163-spacing hole, 17-gear selecting gear, 171-gear hole, 18-gear selecting assembly, 181-selection lever, 19-gear positions cam, the high-grade position of 191-, 192-neutral position, 193-low gear position, 194-helical pitch hole, 20-step electric machine output gear, 21-speed reducer, 22-step electric machine, 23-vehicle speed signal, 231-positioning hole, 232-vehicle speed signal magnet steel, 24-gear shift spring, 25-apical tooth spring, 26-gear positions signal, 261-gear positions magnet steel, 262-positioning hole, 27-signal receiving circuit plate, 271-speed of a motor vehicle Hall, 272-neutral gear Hall, 273-high and low shift Hall, 28-spacing shim, 29-cotter pin, 30-spacing shim, 31-drive motor.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of electric motor car two speed transmission, as Figure 1-5, described speed changer comprises shell 1, driving mechanism, reducing gear, gearshift, gear selection mechanism, gear-shifting actuating mechanism, signals collecting mechanism and control module, reducing gear, gearshift, gear selection mechanism, gear-shifting actuating mechanism, signals collecting mechanism and control module are installed in described shell 1, wherein:
Described driving mechanism is used for controlling electric motor car rotating speed according to control module, and this rotating speed is passed to reducing gear;
Described reducing gear is used for the reduction to driving mechanism rotating speed, and the rotating speed after reducing is passed to gearshift;
Described control module is for controlling the operation of gear-shifting actuating mechanism and driving mechanism;
Described gear-shifting actuating mechanism, according to the control of control module, drives gear selection mechanism to carry out high and low shift gear selecting;
Described gear selection mechanism is used for carrying out high and low shift gear selecting according to the driving of gear-shifting actuating mechanism, and institute's gear selecting is passed to gearshift;
The shelves that described gearshift is chosen according to gear selection mechanism, pass to output terminal tire by the rotating speed of reducing gear transmission.
Driving mechanism comprises drive motor 31, drive motor input shaft 13 and drive motor input gear 11, is in transmission connection between described drive motor 31 and drive motor input gear 11 by drive motor input shaft 13; Described drive motor input shaft 13 one end is fixed in shell 1 by bearing, and one end is connected with drive motor 31.
Described reducing gear comprises deboost axle input gear 10, deboost axle 12, bottom gear input gear 9 and top gear input gear 7, described deboost axle input gear 10 is fixedly mounted on deboost axle 12, and described drive motor input gear 11 and deboost axle input gear 10 are often connected with a joggle; Described bottom gear input gear 9 is fixedly connected with deboost axle 12 by the first spline, and top gear input gear 7 and deboost axle 12 one link and be fixed together; Or described top gear input gear 7 is fixedly connected with deboost axle 12 by the first spline, and bottom gear input gear 9 and deboost axle 12 one link and are fixed together;
Described gearshift comprises gear selecting spline 14, shift shaft 5, high speed gear 6 and bootom gear 8, described shift shaft 5 is provided with shift shaft output gear 4, and described high speed gear 6 and bootom gear 8 are connected also rotatably by jump ring pad is spacing with shift shaft 5, simultaneously described gear selecting spline 14 to be placed between high speed gear 6 and bootom gear 8 and to be connected with shift shaft 5 by spline, and top gear input gear 7 and high speed gear 6 are often connected with a joggle; Bottom gear input gear 9 and bootom gear 8 are often connected with a joggle; Gear selecting spline 14 to be placed between high speed gear 6 and bootom gear 8 and to be connected with shift shaft 5 by spline, and can slide axially; Drive gear selection mechanism by gear-shifting actuating mechanism, and pull gear selecting to dial slotting 15 gear selecting spline 14 is engaged with high speed gear 6, or gear selecting spline 14 is taken turns 8 with bottom gear and engaged.
Described gear selection mechanism comprises gear selecting and dials slotting 15, gear selecting pull bar 16, gear selecting gear 17, gear selecting assembly 18, gear positions cam 19 and apical tooth spring 25, and described gear selecting pull bar 16 is provided with gear selecting vertically successively and dials plug in positioning hole 164, first spacing shim 30, spacing draw-in groove 161, helical pitch groove 162, spacing hole 163; Described gear selecting is dialled slotting 15 and is dialled plug in positioning hole 164 by gear selecting and be connected to a fixed with gear selecting pull bar 16, simultaneously described gear selecting is dialled slotting 15 and first and is provided with gear shift spring 24 between spacing shim 30, and described gear shift spring 24 is enclosed within gear selecting pull bar 16, and described first spacing shim 30 is fixedly connected on shell 1; Described gear selecting gear 17, gear selecting assembly 18, gear positions cam 19 and apical tooth spring 25 are enclosed within the gear selecting pull bar 16 of the first spacing shim 30 opposite side successively; And cotter pin 29 is installed in the spacing hole 163 of described gear selecting pull bar 16, be provided with the second spacing shim 28 between described apical tooth spring 25 and cotter pin 29; Described gear positions cam 19 is along helical pitch groove 162 axial motion, and its limit position deviating from apical tooth spring 25 motion is spacing draw-in groove 161; Described gear selecting gear 17 is fixedly connected with one end of gear selecting assembly 18, and described gear selecting gear 17 rotates in a circumferential direction along gear selecting pull bar 16; The other end of described gear selecting assembly 18 does circumferential movement along gear positions cam 19 simultaneously; Gear selecting gear 17 is connected with gear selecting pull bar 16, and gear selecting gear 17 is along gear selecting pull bar 16 clockwise movement when gear selecting; Gear selecting assembly 18 and gear selecting gear 17 compact siro spinning technology; Gear positions cam 19 and bottom gear apical tooth spring 25, spacing shim 28 are connected to the spacing hole less than 163 of gear selecting pull bar 16 by cotter pin 29.By spacing draw-in groove 161, helical pitch groove 162, gear positions cam 19 carries out the axial motion be limited in scope on gear selecting pull bar 16 along helical pitch groove 162.
By vehicle speed signal 23, drive gear-shifting actuating mechanism to pass to gear selecting gear 17 by gear shifting motor output gear 20, contacted with gear positions cam 19 rotational slide by gear selecting assembly 18; Gear selecting assembly 18 is when gear positions cam 19 surface, and gear positions cam 19 drives gear selecting pull bar 16 to axially move along gear hole 171.
Described gear-shifting actuating mechanism comprises the step electric machine 22, speed reducer 21 and the gear shifting motor output gear 20 that are in transmission connection successively, and described gear shifting motor output gear 20 and gear selecting gear 17 are connected by meshing transmission;
Described signals collecting mechanism comprises rate signal magnet steel 232, gear positions magnet steel 261 and signal acquisition circuit plate 27, and described rate signal magnet steel 232 Negotiation speed signal magnet steel positioning hole 231 is connected with shift shaft 5; Gear positions magnet steel 261 is connected with gear selecting gear 17 by gear positions magnet steel positioning hole 262; Signal acquisition circuit plate 27 comprises speed of a motor vehicle Hall 271, neutral gear Hall 272, high and low shift Hall 273, and described neutral gear Hall 272, high and low shift Hall 273 are oppositely arranged with gear positions magnet steel 261, and speed of a motor vehicle Hall 271 and rate signal magnet steel 232 are oppositely arranged; Signal acquisition circuit plate 27 Negotiation speed signal magnet steel 232 gathers vehicle speed signal, gathers gear positions signal by gear positions magnet steel 261;
Described control module controls step electric machine 22 according to gear shifting signal and passes to gear selecting gear 17 by gear shifting motor output gear 20, and gear selecting gear 17 drives gear selecting assembly 18 to rotate clockwise; Gear selecting assembly 18 is along gear positions cam 19 apparent motion, contacted with gear positions cam 19 rotational slide by gear selecting assembly 18, when gear selecting assembly 18 moves to gear positions cam 19 corresponding gear positions, gear shift release, gear positions cam 19 drives gear selecting pull bar 16 to axially move along gear selecting gear 17 simultaneously, gear selecting pull bar 16 drives gear selecting to dial slotting 15, pulls gear selecting spline 14 to be close to high gear 8; The signal that described control module is collected by signals collecting mechanism judges, then drives gear-shifting actuating mechanism to drive the gear selecting gear selecting spline 14 dialled on slotting 15 that shift shaft 5 is exchanged with high, low speed gear and engages.
Described gear positions cam 19 is provided with high-grade position 191, neutral position 192, low gear position 193, and described gear positions cam 19 is slidably connected by helical pitch hole 194 and helical pitch groove 162.Gear positions cam (19) is connected with helical pitch groove 162 by helical pitch hole 194, and can only axially move, and can not move in a circle.
Described gear selecting is dialled slotting 15 and is provided with and dials plug in positioning hole 151, described gear selecting dial slotting 15 by the first bearing pin through dial plug in positioning hole 151 and gear selecting dial plug in positioning hole 164 gear selecting dialled slotting 15 and gear selecting pull bar 16 be connected to a fixed.
The utility model by the input of drive motor 24, then by slow down step by step the most at last transmission of power to output terminal tire.Drive motor 31 is connected with drive motor input shaft 13, and power is passed to drive motor input gear 11 by drive motor input shaft 13, by passing to deboost axle input gear 10 by drive motor input gear 11 again; Bottom gear input gear 9 and deboost axle input gear 10 are fixed on deboost axle 12 in the mode of spline, and top gear input gear 7 and deboost axle 12 are integrated interlock.When deboost axle input gear 10 rotates, drive deboost axle 12, top gear input gear 7, bottom gear input gear 9 synchronous axial system; Top gear input gear 9 often engages with high speed gear 8, and bottom gear input gear 7 often engages with bootom gear 6; It is spacing that high speed gear 6 and bootom gear 8 pass through jump ring pad, is connected also rotatable with shift shaft 5.Gear selecting spline 14 is placed between high speed gear 6 and bootom gear 8, is connected with shift shaft 5 by spline, and can lower slider vertically; Drive gear selection mechanism by gear-shifting actuating mechanism, and pull gear shift to dial to insert gear selecting spline 14 is engaged with high speed gear 6, or gear selecting spline 14 is taken turns 8 with bottom gear and engaged, two kinds of different engagement systems, by output speed ratios different for acquisition two kinds; Output gear 4 links with shift shaft 5 one, and two kinds of different speed ratios finally pass to differential gear 3 by output gear 4, finally pass to output terminal tire.
As Fig. 1,2.Shown in, as mentioned above, drive gear selection mechanism by gear-shifting actuating mechanism, and pull gear shift to dial to insert and gear selecting spline 14 is engaged with high speed gear 8 or bootom gear 6, to obtain two kinds of different speed ratios
-gear shift is dialled to insert and is comprised: gear selecting dials slotting 15, gear selecting pull bar 16; Gear selecting is dialled slotting 15 and is fixed on gear selecting pull bar 16 by screw by positioning hole 151 and positioning hole 164.When pull bar moves up and down, gear selecting dials slotting passive interlock.
-gear selection mechanism comprises: gear selecting gear 17, gear selecting assembly 18, gear positions cam 19, cotter pin 29, spacing shim 28, apical tooth spring 25, spacing shim 30, gear shift spring 24; Gear selecting gear 17 is connected with gear selecting pull bar 16 by gear hole 171, and gear selecting gear 17 is fixed on casing, rotates clockwise along gear selecting pull bar 16; Gear selecting assembly 18 is fixedly connected with gear selecting gear 17; Gear positions cam 19 is enclosed within gear selecting pull bar 16 by helical pitch hole 194, helical pitch groove 162; Cotter pin 29 is fixed in positioning hole 163, and spacing shim 28, apical tooth spring 25 are enclosed within gear selecting pull bar 16, and are limited in positioning hole less than 163 by cotter pin 29; Apical tooth spring 25 lower end presses to gear positions cam 19, makes gear positions cam 19 produce downward pressure all the time and finally be limited on the position of spacing draw-in groove 161; In sum, gear positions cam 19 and gear selecting pull bar 16 in tilt fixing, and can do upwards, limited sliding axially along gear selecting pull bar 16; Gear shift spring 24 is enclosed within gear selecting pull bar 16, and is limited in gear selecting and dials between slotting 15 and spacing shim 30; Spacing shim 30 is fixed on housing 1.
-gear-shifting actuating mechanism comprises: step electric machine 22, speed reducer 21, step electric machine output gear 20; During gear shift, step electric machine 22 drives speed reducer 21, passes to gear selecting gear 17 by step electric machine output gear 20.
Of the present utility model transfer the files as described below:
One, low-grade
As shown in Fig. 6,3, as mentioned above.When CPU (control module) sends shift command, step electric machine 22 finally drives step electric machine output gear 20 to pass to again and drives gear selecting gear 17; Gear selecting gear 17 drives gear selecting assembly 18 to rotate clockwise; Gear selecting assembly 18 is along gear positions cam 19 apparent motion, and when gear selecting assembly 18 moves to cam low gear position 193, gear shift release, is characterized in that:
When gear selecting assembly 18 is along gear positions cam 19 apparent motion, gear positions cam 19, by continuous upwards jack-up, after apical tooth spring 25 is stressed, drives gear selecting pull bar 16 to move upward; Gear selecting pull bar 16 drives gear selecting to dial slotting 15, pulls gear selecting spline 14 to be close to high gear 8, and final spline tooth 141 injects in high gear 8; In this process, because spacing shim 30 maintains static, gear shift spring 24 is dialled in the process that moves upward of slotting 15 in gear shift and is compressed continuously; Therefore, in low-grade process, gear shift spring 24 is in compressive state all the time; The elastic force of apical tooth spring 25 is greater than the power under the compressive state of gear shift spring 24 all the time, and therefore when not there is apical tooth, apical tooth spring 25 remains range and do not compressed.
Two, neutral gear
As shown in Fig. 7,3, as mentioned above.When CPU sends shift command, step electric machine 22 finally drives step electric machine output gear 20 to drive gear selecting gear 17; Gear selecting gear 17 drives gear selecting assembly 18 to rotate clockwise; Gear selecting assembly 18, along gear positions cam 19 apparent motion, when gear selecting assembly 18 moves to cam low gear position 192, is neutral state, it is characterized in that:
Gear selecting assembly 18 leaves low gear position 193 when arriving neutral position 192, and gear shift spring 24 release portion pressure, pulls certain distance downwards by gear selection position cam 19; As mentioned above, gear selecting pull bar 16 and the interlock of gear selection position cam 19, drive gear selecting to dial slotting 15 and then drive the spline tooth 141 of gear selecting spline 14 to leave low regime clutch 8; Spline tooth 141,142 and low regime clutch 8, high-grade gear 6 mutual noninterference, this is neutral state.
Three, high-grade
As shown in Fig. 8,3, as mentioned above.When CPU sends shift command, step electric machine 22 finally drives step electric machine output gear 20 to drive gear selecting gear 17; Gear selecting gear 17 drives gear selecting assembly 18 to rotate clockwise; Gear selecting assembly 18 is along gear positions cam 19 apparent motion, and when gear selecting assembly 18 moves to cam low gear position 191, gear shift release is high-grade state, it is characterized in that:
Gear selecting assembly 18 leaves low gear position 192 when arriving neutral position 191, and gear shift spring 24 discharges whole pressure, and gear selection position cam 19 is pulled certain distance downwards again; As mentioned above, gear selecting pull bar 16 and the interlock of gear selection position cam 19, drive gear selecting to dial slotting 15 and then drive gear selecting spline 14 to slide to high-grade gear 6, spline tooth 141 is engaged with high-grade gear 6; In the process, if there is apical tooth phenomenon, be obstructed during gear shift spring 24 retracting spring stroke, when spline tooth 142 staggers and finally injects in high-grade gear 6, gear shift spring 24 stroke is all discharged, then gearshift procedure terminates, and is now high-grade state.
The utility model is judged by the signal collected, and then drives gear-shifting actuating mechanism to drive gear shift to dial the spline plugged and shift shaft is exchanged with high low speed gear engage; Switched by high low speed, make electric motor car in various road conditions running process, all the time drive motor is remained on efficient district.In low speed driving process, produce high pulling torque, reduce electric motor car inrush current.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a gear selection mechanism for electric motor car two speed transmission, described speed changer comprises driving mechanism, reducing gear, gearshift, gear selection mechanism, gear-shifting actuating mechanism, signals collecting mechanism and control module, wherein:
Described driving mechanism is used for controlling electric motor car rotating speed according to control module, and this rotating speed is passed to reducing gear;
Described reducing gear is used for the reduction to driving mechanism rotating speed, and the rotating speed after reducing is passed to gearshift;
Described control module is for controlling the operation of gear-shifting actuating mechanism and driving mechanism;
Described gear-shifting actuating mechanism, according to the control of control module, drives gear selection mechanism to carry out high and low shift gear selecting;
Described gear selection mechanism is used for carrying out high and low shift gear selecting according to the driving of gear-shifting actuating mechanism, and institute's gear selecting is passed to gearshift;
The shelves that described gearshift is chosen according to gear selection mechanism, pass to output terminal tire by the rotating speed of reducing gear transmission,
It is characterized in that: described gear selection mechanism comprises gear selecting and dials slotting (15), gear selecting pull bar (16), gear selecting gear (17), gear selecting assembly (18), gear positions cam (19) and apical tooth spring (25), and described gear selecting pull bar (16) is provided with gear selecting vertically successively and dials plug in positioning hole (164), the first spacing shim (30), spacing draw-in groove (161), helical pitch groove (162), spacing hole (163); Described gear selecting is dialled slotting (15) and is dialled plug in positioning hole (164) and gear selecting pull bar (16) by gear selecting and be connected to a fixed, described gear selecting is dialled between slotting (15) and the first spacing shim (30) and is provided with gear shift spring (24) simultaneously, and described gear shift spring (24) is enclosed within gear selecting pull bar 16, and described first spacing shim (30) is fixedly connected on shell (1); Described gear selecting gear (17), gear selecting assembly (18), gear positions cam (19) and apical tooth spring (25) are enclosed within the gear selecting pull bar (16) of the first spacing shim (30) opposite side successively; And cotter pin (29) is installed in the spacing hole (163) of described gear selecting pull bar (16), be provided with the second spacing shim (28) between described apical tooth spring (25) and cotter pin (29); Described gear positions cam (19) is along helical pitch groove (162) axial motion, and its limit position deviating from that apical tooth spring (25) moves is spacing draw-in groove (161); Described gear selecting gear (17) is fixedly connected with one end of gear selecting assembly (18), and described gear selecting gear (17) rotates in a circumferential direction along gear selecting pull bar 16; The other end of described gear selecting assembly (18) is rotationally connected along gear positions cam (19) circumference simultaneously.
2. the gear selection mechanism of electric motor car two speed transmission according to claim 1, it is characterized in that: described gear positions cam (19) is provided with high-grade position (191), neutral position (192), low gear position (193), and described gear positions cam (19) is slidably connected by helical pitch hole (194) and helical pitch groove (162).
3. the gear selection mechanism of electric motor car two speed transmission according to claim 2, it is characterized in that: described gear selecting is dialled slotting (15) and is provided with and dials plug in positioning hole (151), described gear selecting is dialled slotting (15) and is dialled plug in positioning hole (164) by the first bearing pin gear selecting dialled slotting (15) and gear selecting pull bar (16) is connected to a fixed through dialling plug in positioning hole (151) and gear selecting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520515177.5U CN204828629U (en) | 2015-07-15 | 2015-07-15 | Selection shelves mechanism of electric motor car two speed transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520515177.5U CN204828629U (en) | 2015-07-15 | 2015-07-15 | Selection shelves mechanism of electric motor car two speed transmission |
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| CN204828629U true CN204828629U (en) | 2015-12-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065653A (en) * | 2015-07-15 | 2015-11-18 | 徐州南普机电科技有限公司 | Gear-selection mechanism for electric vehicle two-gear transmission |
| CN106763719A (en) * | 2016-12-09 | 2017-05-31 | 汽-大众汽车有限公司 | One kind rotation gearshift |
| CN110409580A (en) * | 2019-07-27 | 2019-11-05 | 蔡庆财 | A kind of novel intelligent toilet lid |
| CN111870025A (en) * | 2020-09-07 | 2020-11-03 | 浙江工贸职业技术学院 | Manual lifting table |
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- 2015-07-15 CN CN201520515177.5U patent/CN204828629U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065653A (en) * | 2015-07-15 | 2015-11-18 | 徐州南普机电科技有限公司 | Gear-selection mechanism for electric vehicle two-gear transmission |
| CN106763719A (en) * | 2016-12-09 | 2017-05-31 | 汽-大众汽车有限公司 | One kind rotation gearshift |
| CN106763719B (en) * | 2016-12-09 | 2019-04-09 | 一汽-大众汽车有限公司 | A kind of rotation gearshift |
| CN110409580A (en) * | 2019-07-27 | 2019-11-05 | 蔡庆财 | A kind of novel intelligent toilet lid |
| CN111870025A (en) * | 2020-09-07 | 2020-11-03 | 浙江工贸职业技术学院 | Manual lifting table |
| CN117148021A (en) * | 2023-10-30 | 2023-12-01 | 华能新能源股份有限公司山西分公司 | Wind-powered electricity generation sliding ring brush testing arrangement |
| CN117148021B (en) * | 2023-10-30 | 2024-01-02 | 华能新能源股份有限公司山西分公司 | Wind-powered electricity generation sliding ring brush testing arrangement |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20170901 |