CN203836093U - One-way sliding differential motor assembly for electric vehicle - Google Patents
One-way sliding differential motor assembly for electric vehicle Download PDFInfo
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- CN203836093U CN203836093U CN201420281786.4U CN201420281786U CN203836093U CN 203836093 U CN203836093 U CN 203836093U CN 201420281786 U CN201420281786 U CN 201420281786U CN 203836093 U CN203836093 U CN 203836093U
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- driving gear
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Abstract
The utility model discloses a one-way sliding differential motor assembly for an electric vehicle. The one-way sliding differential motor assembly comprises a motor and a gearbox, wherein a driving shaft, a driven shaft, a shifting fork and a differential are arranged in the gearbox; a forward gear driving gear and a backward gear driving gear are arranged on the driving shaft; a forward gear driven gear, a backward gear driven gear and a transmission gear are arranged on the driven shaft; a one-way rotating mechanism is arranged between the forward gear driven gear and the driven shaft; the driving shaft is sleeved with a sliding gear; the sliding gear sleeves the driving shaft through matching of spiral spline teeth; a shifting fork groove is formed in the peripheral face of the sliding gear; the fork head of the shifting fork is forked in the shifting fork groove; the side wall of the gearbox is provided with a sliding chute; one end, which is far away from the fork head, of the shifting fork is positioned in the sliding chute. The one-way sliding differential motor assembly has the advantages of simple structure, low energy consumption, capability of sliding freely and reversing, and higher cruising ability of a storage battery.
Description
Technical field
The utility model relates to electric motor car, relates in particular to a kind of electric motor car one-way sliding differential speed motor assembly.
Background technique
The driving power of common electric motor car is mainly inputted the electric current and voltage of motor by adjusting, the rotating speed that changes motor carries out speed change.Conventionally, the motor of electric motor car is connected with differential mechanism by driving gear, thereby realizes output.But because differential mechanism input gear engages with driving gear, and driving gear is by driven by motor, make after motor quits work, electric motor car continues to move ahead to effect at inertia, oppositely drive motor rotates, thereby the formation resistance that moves ahead to electric motor car makes electric motor car after motor quits work, continue the distance that moves ahead very short, cause energy dissipation, make energy consumption high.
Model utility content
For prior art above shortcomings, technical problem to be solved in the utility model is how to provide a kind of simple in structure, energy consumption is low, can either free sliding, can realize again the electric motor car one-way sliding differential speed motor assembly of reverse gear, thereby use conveniently, and the flying power of electromobile battery is stronger.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is such: a kind of electric motor car one-way sliding differential speed motor assembly, comprise motor and gearbox, described motor is installed on gearbox one side, in gearbox, be provided with driving shaft, driven shaft, shift fork and differential mechanism, on driving shaft, be rotatably arranged with forward gears driving gear and reverse driving gear, on driven shaft, be provided with forward gears driven gear, reverse gear driven gear and driving gear, forward gears driven gear and reverse gear driven gear engage with forward gears driving gear and reverse driving gear respectively, wherein, reverse gear driven gear is all fixedly connected with driven shaft with driving gear, and this driving gear engages with the input gear of differential mechanism, it is characterized in that: described driving shaft is connected with motor output shaft coaxial inner conductor, and motor can drive driving shaft to rotate, between described forward gears driven gear and driven shaft, be provided with one-way turning mechanism,
On driving shaft, be arranged with a sliding gear, this sliding gear is between forward gears driving gear and reverse driving gear; Described sliding gear is located on driving shaft by the engage sleeves of helical spline tooth and helical spline tooth, makes the sliding gear can axially moving around along driving shaft; Be respectively equipped with several claws in the both sides of sliding gear, forward gears driving gear and reverse driving gear are respectively equipped with the draw-in groove corresponding with claw near a side of sliding gear, in the time that sliding gear moves along driving shaft, can combine with forward gears driving gear or reverse driving gear by the cooperation of claw and draw-in groove;
On the side face of sliding gear, be provided with a fork slot, the jaw fork of described shift fork is located in fork slot, and can clamp by sliding gear, makes can form friction between jaw and sliding gear; On the sidewall of gearbox, be provided with a chute, the length direction of described chute is axial consistent with driving shaft, and described shift fork is positioned at this chute away from one end of jaw.
Further, be provided with shift fork limit structure in chute, this limit structure is positioned at chute one end near forward gears driving gear, and after motor stops operating, this limit structure can stop shift fork to move towards reverse driving gear direction along chute.
Further, described one-way turning mechanism is unilateral bearing or single direction ratchet mechanism.
Further, described shift fork comprises jaw and fork handle, and described jaw is resilient clamp structure, makes the jaw can be all the time and the laminating of fork slot bottom surface, and can and sliding gear between can form friction.
Compared with prior art, the utlity model has following advantage:
1, simple in structure, carry out clockwise and anticlockwise and can realize and advance and fall back by controlling motor, use convenient.
2, in the process of advancing, when after unpowered input, driven shaft is rotated further under the drive of wheel, now, due to the existence of one-way turning mechanism, driven shaft cannot drive forward gears driven gear to rotate, thereby realizes the free sliding of electric motor car, and then reduce greatly energy consumption, make the endurance of storage battery of electric motor car stronger.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is a kind of mode of execution schematic diagram of shift fork in the utility model;
Fig. 3 is a kind of mode of execution schematic diagram of limit structure;
Fig. 4 is the another kind of mode of execution schematic diagram of limit structure.
In figure: 1-motor, 2-gearbox, 3-driving shaft, 4-driven shaft, 5-shift fork, 51-jaw, 52-fork handle, 6-differential mechanism, 7-forward gears driving gear, 8-reverse driving gear, 9-forward gears driven gear, 10-reverse gear driven gear, 11-sliding gear, 12-one-way turning mechanism, 13-chute, 14-groove, 15-U-shaped plate.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment: referring to Fig. 1, a kind of electric motor car one-way sliding differential speed motor 1 assembly, comprises motor 1 and gearbox 2, and described motor 1 is installed on gearbox 2 one sides.In gearbox 2, be provided with driving shaft 3, driven shaft 4, shift fork 5 and differential mechanism 6, on driving shaft 3, be rotatably arranged with forward gears driving gear and reverse driving gear 8, on driven shaft 4, be provided with forward gears driven gear 9, reverse gear driven gear 10 and driving gear, forward gears driven gear 9 and reverse gear driven gear 10 engage with forward gears driving gear and reverse driving gear 8 respectively.Wherein, reverse gear driven gear 10 is all fixedly connected with driven shaft 4 with driving gear, and this driving gear engages with the input gear of differential mechanism 6.Described driving shaft 3 is connected with motor 1 output shaft coaxial inner conductor, and motor 1 can drive driving shaft 3 to rotate.Between described forward gears driven gear 9 and driven shaft 4, be provided with one-way turning mechanism 12.Described one-way turning mechanism 12 is unilateral bearing or single direction ratchet mechanism; Simple in structure, processing and fabricating is convenient.
On driving shaft 3, be arranged with a sliding gear 11, this sliding gear 11 is between forward gears driving gear and reverse driving gear 8; Described sliding gear 11 is located on driving shaft 3 by the engage sleeves of helical spline tooth and helical spline tooth, makes the sliding gear 11 can axially moving around along driving shaft 3; When concrete enforcement, on driving shaft, be provided with Turbo Flora keyway, on the endoporus of sliding gear, be provided with Turbo Flora keyway to the Turbo Flora keyway mating.For make sliding gear can be better, slide quickly, described Turbo Flora keyway adopts bull outside thread, helical spline tooth adopts multiple-internal screw thread; Thereby can reduce the axial friction being subject in sliding gear moving process.Be respectively equipped with several claws in the both sides of sliding gear 11, forward gears driving gear and reverse driving gear 8 are respectively equipped with the draw-in groove corresponding with claw near a side of sliding gear 11, in the time that sliding gear 11 moves along driving shaft 3, can combine with forward gears driving gear or reverse driving gear 8 by the cooperation of claw and draw-in groove.
On the side face of sliding gear 11, be provided with a fork slot, the jaw fork of described shift fork 5 is located in fork slot, and can clamp by sliding gear 11, makes can form friction between jaw and sliding gear 11; When concrete making, described shift fork 5 comprises jaw and fork handle, and described jaw is resilient clamp structure, makes the jaw can be all the time and the laminating of fork slot bottom surface, and can and sliding gear 11 between can form friction; Even if so in use, jaw or sliding gear 11 have wearing and tearing, also can ensure clamped condition, make to exist and rub all the time between jaw and sliding gear 11.As a kind of mode, this jaw adopts jump ring, and structure is simpler, processes convenient.As another kind of mode of execution, referring to Fig. 2, described fork handle 52 is v-shaped structure, its two ends are bent to form jaw 51 to the direction deviating from mutually, and fork handle 52 is made up of elasticity (metal) material, makes shift fork 5 entirety there is elasticity, thereby can all the time sliding gear 11 be clamped.
On the sidewall of gearbox 2, be provided with a chute 13, the length direction of described chute 13 is axial consistent with driving shaft 3, and described shift fork 5 is positioned at this chute 13 away from one end of jaw.Like this, in the time that driving shaft drives sliding gear to rotate, sliding gear drives shift fork to rotate, but because the fork handle of shift fork is positioned at chute 13, what therefore shift fork rotated is limited in scope, in the time that shift fork is blocked by the both sides of chute 13 and cannot rotate, frictional force between shift fork and sliding gear acts on sliding gear, force between sliding gear and driving shaft and form speed discrepancy, thereby sliding gear is moved towards forward gears driving gear direction or reverse driving gear direction, until sliding gear combines with forward gears driving gear or reverse driving gear, thereby carry out power output by forward gears driving gear or reverse driving gear, realize advancing or falling back of electric motor car.
In chute 13, be provided with shift fork limit structure, this limit structure is positioned at chute 13 one end near forward gears driving gear, in the time that electric machine rotation driving electric car advance, sliding gear is combined with forward gears driving gear, and now the fork handle of shift fork is positioned at this limit structure; After motor stops operating, this limit structure can stop shift fork to move towards reverse driving gear direction along chute 13.When concrete enforcement, as a kind of mode of execution, referring to Fig. 3, described limit structure is the groove 14 of being located at chute 13 1 sidewalls, makes this sidewall of chute 13 be ledge structure; In the time that electric machine rotation driving electric car advance, the fork handle of shift fork is positioned at this groove 14.Like this, after motor stops operating, electric motor car continues to move ahead, and its wheel rotates by differential mechanism band nutating gear, and forward gears driven gear is rotated under the effect of (one-way turning mechanism inside) frictional force, and then drives forward gears driving gear to rotate; Thereby make forward gears driving gear drive sliding gear to rotate, and drive driving shaft to rotate by the frictional force between itself and driving shaft, thereby sliding gear is moved towards reverse driving gear direction along driving shaft; Now, because the fork handle of shift fork is positioned at groove 14, and the suffered frictional force of forward gears driving gear is very little, be not enough to drive sliding gear to turn to and make the fork handle of shift fork depart from groove 14, thereby stop shift fork and sliding gear to continue to move towards reverse driving gear direction by this groove 14, and then avoid moving to and combining with reverse driving gear and cause free sliding to be obstructed at the sliding gear that advances in the process of sliding.As another kind of mode of execution, referring to Fig. 4, described limit structure is a U-shaped plate 15, the closed end of this U-shaped plate 15 is fixedly connected with near one end of forward gears driving gear with chute 13, a side at U-shaped plate 15 is provided with to spacing section of U-shaped plate 15 outside protuberances near closed end place, in the time that electric machine rotation driving electric car advance, the fork handle of shift fork is positioned at this spacing section.
Electric motor car advances in process, motor 1 forward rotation, because sliding gear 11 is clamped by shift fork 5, make to form and rub between sliding gear 11 and shift fork 5, cause between sliding gear 11 and driving shaft 3 and form speed discrepancy, sliding gear 11 is moved, until be combined with forward gears driving wheel towards forward gears driving gear 7 directions; Now, forward gears driving gear 7 drives driven shaft 4 to rotate by forward gears driven gear 9, and driven shaft 4 drives the input gear of differential mechanism 6 to rotate by driven gear again, exports and drives motorcycle to advance thereby realize.
Electric motor car falls back in process, motor 1 rotates backward, now, sliding gear 11 moves towards reverse driving gear 8 directions under the effect of shift fork 5, until the claw on sliding gear 11 combines with the draw-in groove on reverse driving gear 8, make sliding gear 11 drive reverse driving gear 8 to rotate, thereby make that reverse gear is driven drives the input gear of differential mechanism 6 oppositely to export by driving gear, fall back thereby realize electric motor car.
In the process of advancing, when after unpowered input, driven shaft 4 is rotated further under the drive of wheel, now, due to the existence of one-way turning mechanism 12, driven shaft 4 cannot drive forward gears driven gear 9 to rotate, thereby realizes the free sliding of electric motor car, and then reduce greatly energy consumption, make the endurance of storage battery of electric motor car stronger.
Finally it should be noted that, above embodiment is only in order to the technical solution of the utility model to be described but not restriction technologies scheme, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or are equal to replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. an electric motor car one-way sliding differential speed motor assembly, comprise motor and gearbox, described motor is installed on gearbox one side, in gearbox, be provided with driving shaft, driven shaft, shift fork and differential mechanism, on driving shaft, be rotatably arranged with forward gears driving gear and reverse driving gear, on driven shaft, be provided with forward gears driven gear, reverse gear driven gear and driving gear, forward gears driven gear and reverse gear driven gear engage with forward gears driving gear and reverse driving gear respectively; Wherein, reverse gear driven gear is all fixedly connected with driven shaft with driving gear, and this driving gear engages with the input gear of differential mechanism; It is characterized in that: described driving shaft is connected with motor output shaft coaxial inner conductor, and motor can drive driving shaft to rotate; Between described forward gears driven gear and driven shaft, be provided with one-way turning mechanism;
On driving shaft, be arranged with a sliding gear, this sliding gear is between forward gears driving gear and reverse driving gear; Described sliding gear is located on driving shaft by the engage sleeves of helical spline tooth and helical spline tooth, makes the sliding gear can axially moving around along driving shaft; Be respectively equipped with several claws in the both sides of sliding gear, forward gears driving gear and reverse driving gear are respectively equipped with the draw-in groove corresponding with claw near a side of sliding gear, in the time that sliding gear moves along driving shaft, can combine with forward gears driving gear or reverse driving gear by the cooperation of claw and draw-in groove;
On the side face of sliding gear, be provided with a fork slot, the jaw fork of described shift fork is located in fork slot, and can clamp by sliding gear, makes can form friction between jaw and sliding gear; On the sidewall of gearbox, be provided with a chute, the length direction of described chute is axial consistent with driving shaft, and described shift fork is positioned at this chute away from one end of jaw.
2. electric motor car one-way sliding differential speed motor assembly according to claim 1, it is characterized in that: in chute, be provided with shift fork limit structure, this limit structure is positioned at chute one end near forward gears driving gear, after motor stops operating, this limit structure can stop shift fork to move towards reverse driving gear direction along chute.
3. electric motor car one-way sliding differential speed motor assembly according to claim 1, is characterized in that: described one-way turning mechanism is unilateral bearing or single direction ratchet mechanism.
4. electric motor car one-way sliding differential speed motor assembly according to claim 1, it is characterized in that: described shift fork comprises jaw and fork handle, described jaw is resilient clamp structure, makes the jaw can be all the time and the laminating of fork slot bottom surface, and can and sliding gear between can form friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281786.4U CN203836093U (en) | 2014-05-29 | 2014-05-29 | One-way sliding differential motor assembly for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281786.4U CN203836093U (en) | 2014-05-29 | 2014-05-29 | One-way sliding differential motor assembly for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836093U true CN203836093U (en) | 2014-09-17 |
Family
ID=51513937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420281786.4U Expired - Fee Related CN203836093U (en) | 2014-05-29 | 2014-05-29 | One-way sliding differential motor assembly for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836093U (en) |
-
2014
- 2014-05-29 CN CN201420281786.4U patent/CN203836093U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20160529 |