CN203880023U - Electric vehicle sliding differential motor assembly - Google Patents
Electric vehicle sliding differential motor assembly Download PDFInfo
- Publication number
- CN203880023U CN203880023U CN201420245196.6U CN201420245196U CN203880023U CN 203880023 U CN203880023 U CN 203880023U CN 201420245196 U CN201420245196 U CN 201420245196U CN 203880023 U CN203880023 U CN 203880023U
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- gear
- sliding
- driving shaft
- sliding gear
- fork
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Abstract
The utility model discloses an electric vehicle sliding differential motor assembly which comprises a motor and a gearbox. A driving shaft, a sliding gear, a transmission gear and a differential mechanism are arranged in the gearbox. The transmission gear is fixed onto the driving shaft, the driving shaft is provided with a spiral spline groove, and the sliding gear is installed on the driving shaft through a one-way rotating mechanism. A shifting fork comprises a fork head and a fork handle, the fork head is arranged in a shifting fork groove of the sliding gear in a forked mode, a sliding groove is formed in the side wall of the gearbox, the end, away from the fork head, of the fork handle is located in the sliding groove, an output shaft of the motor stretches into the gearbox to be connected with a power output gear, and the transmission gear is meshed with a power input gear of the differential mechanism. The electric vehicle sliding differential motor assembly is simple in structure and low in energy consumption, can slide freely, can also achieve gear reversing and is more convenient to use, and the runtime of a storage battery of an electric vehicle is longer.
Description
Technical field
The utility model relates to electric motor car, relates in particular to a kind of electric motor vehicle 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.Also have by gearbox and carry out speed change, and current gearbox mainly drives sliding gear by shift fork, and sliding gear is coordinated with driving gear, then by driving gear, drive output gear to export.Such structure, in gearshift procedure, easily causes collision, thereby makes rate of fault higher between sliding gear and driving gear, and it is also higher to produce noise.Simultaneously, the electric motor car of existing gearbox, due to output gear and driving gear engagement, and driving gear is by driven by motor, 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.Although some electric vehicle gear boxes have also possessed reverse gear structure, but its structure is comparatively complicated, and in operating process, need to drive shift fork by operation shifting fork bar, and then drive sliding gear to move, to carry out the rotation of forward gears and reverse gear, will increase the step of operation like this, thereby make troubles to driving.
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 vehicle 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 vehicle sliding differential speed motor assembly, comprise motor and gearbox, described motor is fixedly installed in gearbox one side, in gearbox, be provided with driving shaft, sliding gear, driving gear and differential mechanism, described driving gear is fixed on driving shaft, it is characterized in that: on described driving shaft, have Turbo Flora keyway, sliding gear is arranged on driving shaft by one-way turning mechanism; Described one-way turning mechanism have with driving shaft on the helical spline tooth that matches of Turbo Flora keyway, make the sliding gear can axially moving around along driving shaft; At sliding gear, near a side of driving gear, be provided with several claws, at driving gear, near a side of sliding gear, be provided with the draw-in groove corresponding with claw; On driving shaft, be provided with one for limiting the barrier structure of sliding gear mobile position, this barrier structure is positioned at the side that sliding gear deviates from driving gear; Described shift fork comprises jaw and fork handle, and described jaw fork is located in the fork slot of sliding gear, and is close to fork slot bottom surface, 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 fork handle is positioned at this chute away from one end of jaw, and can move along chute;
The output shaft of described motor is connected with a power output gear after stretching into gearbox, this power output gear and sliding gear engagement, the length of described power output gear is greater than the length of sliding gear, and sliding gear is meshed with power output gear all the time in driving shaft moves around process;
Described driving gear is meshed with the power input tooth of differential mechanism.
Further, in a side of chute, have a limit structure, after power input stops, this limit structure can stop sliding gear to move to driving gear direction along driving shaft.
Further, described one-way turning mechanism comprises unilateral bearing and slide bushing, described unilateral bearing is set on slide bushing and with slide bushing and fixes, described slide bushing has the helical spline tooth matching with Turbo Flora keyway, described sliding gear is set on unilateral bearing, and fixes with this unilateral bearing.
Further, a side that deviates from driving gear at sliding gear is provided with a prong for coaxial line with it, and described fork slot is positioned on this prong and around circumferential a week of prong.
Further, 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, sliding gear is connected with driving shaft by one-way turning mechanism, and when motor forward rotation, sliding gear drives driving shaft to rotate, and by driving shaft band nutating gear, rotates, and makes driving gear carry out power output by differential mechanism, and realization is advanced.
2, when motor rotates backward, sliding gear produces frictional force under the effect of shift fork, that slide teeth race driving gear direction moves, until the claw on sliding gear combines with the draw-in groove on driving gear, now, sliding gear is directly with nutating gear to rotate backward, thereby makes driving gear carry out reverse power output by differential mechanism, and realization falls back.
3,, after unpowered input, driving shaft is rotated further under the drive of wheel, now, due to the existence of one-way turning mechanism, driving shaft cannot drive movable pulley 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.
4, one-way turning mechanism is connected together by helical spline tooth and coordinating of helical spline tooth with driving shaft, like this, by the forward and backward of motor, just can control sliding gear moves around on driving shaft, thereby can by the forward and backward of motor, realize the switching of forward gears and reverse gear, more convenient to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 be Fig. 1 along A-A to sectional view;
Fig. 3 is the structural representation of shift fork in the utility model.
In figure: 1-motor, 2-gearbox, 3-driving shaft, 4-sliding gear, 5-driving gear, 6-differential mechanism, 7-barrier structure, 81-jaw, 82-fork handle, 91-unilateral bearing, 92-slide bushing, 10-power output gear.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment: referring to Fig. 1, Fig. 2, a kind of electric motor vehicle sliding differential speed motor 1 assembly, comprise motor 1 and gearbox 2, described motor 1 is fixedly installed in gearbox 2 one sides, in gearbox 2, be provided with driving shaft 3, sliding gear 4, driving gear 5 and differential mechanism 6, described driving gear 5 is fixed on driving shaft 3.
On described driving shaft 3, have Turbo Flora keyway, sliding gear 4 is arranged on driving shaft 3 by one-way turning mechanism; A side that deviates from driving gear 5 at sliding gear 4 is provided with a prong for coaxial line with it, described fork slot is positioned on this prong and around circumferential a week of prong, thereby make the jaw 81 of shift fork larger with the surface of contact of sliding gear 4, can guarantee better the frictional force between shift fork and sliding gear 4.Described one-way turning mechanism have with driving shaft 3 on the helical spline tooth that matches of Turbo Flora keyway, make the sliding gear 4 can axially moving around along driving shaft 3.Actually add man-hour, described one-way turning mechanism can be realized towards a direction locked, has to another way frictional rotation; Described screw thread spline and helical spline tooth adopt respectively multiple thread groove and multiple thread, driving shaft and one-way turning mechanism in mating connection by multiple thread together with; Can make like this one-way turning mechanism mobile more smooth and easy on driving shaft, though at one-way turning mechanism in rotation work process, also can under the effect of the frictional force of one-way turning mechanism inside, realize and moving axially along driving shaft.Described one-way turning mechanism comprises unilateral bearing 91 and slide bushing 92, described unilateral bearing 91 is set on slide bushing 92 and with slide bushing 92 and fixes, in rotation process, between its outer ring, ball and inner ring, all there is friction in this unilateral bearing 91, by this friction energy, drive inner ring to rotate, and then drive slide bushing to rotate; Described slide bushing 92 has the helical spline tooth matching with Turbo Flora keyway, and described sliding gear 4 is set on unilateral bearing 91, and fixing with this unilateral bearing 91; Adopt in this way, assembling processing is convenient, quick, can effectively enhance productivity.
At sliding gear 4, near a side of driving gear 5, be provided with several claws, at driving gear 5, near a side of sliding gear 4, be provided with the draw-in groove corresponding with claw; When sliding gear 4 moves towards driving gear 5 directions, can be connected with driving gear 5 with the cooperation of draw-in groove by claw, thereby make power through the laggard line output of driving gear 5.On driving shaft 3, be provided with one for limiting the barrier structure 7 of sliding gear 4 mobile positions, this barrier structure 7 is positioned at the side that sliding gear 4 deviates from driving gear 5.When motor 1 drives sliding gear 4 (during motor 1 forward rotation) when deviating from driving gear 5 directions and move, by this barrier structure 7, undertaken spacing, force sliding gear 4 to stop moving axially, only under the drive of motor 1, rotate, thereby realize power, after sliding gear 4 and driving shaft 3, by driving gear 5, export.During concrete enforcement, this barrier structure 7 is the protruding structure on jump ring, baffle ring, baffle plate or driving shaft 3, easy to process, quick.
Described shift fork comprises jaw 81 and fork handle 82, and described jaw 81 forks are located in the fork slot of sliding gear 4, and are close to fork slot bottom surface, make can form friction between jaw 81 and sliding gear 4; Described jaw 81 is resilient clamp structure, makes the jaw 81 can be all the time and the laminating of fork slot bottom surface, and can and sliding gear 4 between can form friction; Even if so in use, jaw 81 or sliding gear 4 have wearing and tearing, also can guarantee clamped condition, make to exist and rub all the time between jaw 81 and sliding gear 4.As a kind of mode, this jaw 81 adopts jump ring, and structure is simpler, processes convenient.As another kind of mode of execution, referring to Fig. 3, described fork handle 82 is v-shaped structure, its two ends are bent to form jaw 81 to the direction deviating from mutually, and fork handle 82 is made by elasticity (metal) material, makes shift fork integral body have elasticity, thereby can all the time sliding gear 4 be clamped.
On the sidewall of gearbox 2, be provided with a chute, the length direction of described chute is axial consistent with driving shaft 3, and described fork handle 82 is positioned at this chute away from one end of jaw 81, and can move along chute.Like this, when motor 1 drives sliding gear 4 to rotate, sliding gear 4 moves axially along driving shaft, simultaneously, sliding gear 4 drives shift forks rotate and move along chute, but because the fork handle 82 of shift fork is positioned at chute, so being limited in scope of rotating of shift fork, when shift fork is blocked by the both sides of chute and cannot rotate, shift fork only carries out along chute moving; Until sliding gear 4 and driving gear 5 in conjunction with or by barrier structure 7, stopped, make sliding gear 4 directly band nutating gear rotate, or drive nutating gear to rotate by driving shaft, thereby carry out power output.
A side at chute has a limit structure, and sliding gear 4 stops by barrier structure and drive in the process that driving shaft rotates, and after power input stops, this limit structure can stop sliding gear 4 to move to driving gear 5 directions along driving shaft 3.During concrete enforcement, this limit structure adopts is located at the limited step on chute one sidewall, and the convex portion of this limited step is near driving gear 5,, thus at chute, near barrier structure place, form depression.During dynamic input, the fork handle 82 of shift fork is positioned at the depressed part of limited step, after power input stops, driving shaft 3 is rotated further, now movable pulley is to counter-rotation, and drive shift fork to move, and rotate, but the effect due to one-way turning mechanism, driving shaft 3 is also little to the power of sliding gear 4 by one-way turning mechanism transmission, therefore be not enough to drive shift fork to depart from the depression position of limited step, thereby make sliding gear 4 stop moving towards driving gear 5 directions, thereby avoid sliding gear to move to and driving gear structure along driving shaft, cause electric motor car cannot continue free sliding, further reduce the energy consumption of electric motor car.
The output shaft of described motor 1 is connected with a power output gear 10 after stretching into gearbox 2, this power output gear 10 and sliding gear 4 engagements, the length of described power output gear 10 is greater than the length of sliding gear 4, and sliding gear 4 is meshed with power output gear 10 all the time in driving shaft 3 moves around process; Described driving gear 5 is meshed with the power input tooth of differential mechanism 6.
In working procedure, when motor 1 forward rotation, power input gear 10 drives sliding gear 4 forward rotation, now one-way turning mechanism is in locking state, (be that unilateral bearing is in locking state, thereby drive slide bushing to rotate), make sliding gear 4 bands court under the effect of shift fork deviate from the reverse movement of driving gear, until no longer move after contacting with barrier structure, thereby make sliding gear 4 drive driving shaft 3 to rotate, by driving shaft 3 band nutating gears 5, rotate, make driving gear 5 carry out power output by differential mechanism 6, realization is advanced; When motor 1 rotates backward, power input gear 10 drives sliding gear 4 to rotate backward, now one-way turning mechanism is in rotary state, and because sliding gear 4 is connected with driving shaft 3 by one-way turning mechanism, so sliding gear 4 can not directly drive driving shaft 3 to rotate; But unilateral bearing can drive slide bushing to rotate by interior friction, realizing slide bushing moves axially along driving shaft, (because adopting multiple thread to coordinate, driving shaft and one-way turning mechanism be connected, the axial resistance that one-way turning mechanism is subject in moving process is very little, even if therefore the frictional force of one-way turning mechanism inside is very little, also can drive one-way turning mechanism to move along driving shaft); Like this, sliding gear moves towards driving gear direction under the drive of one-way turning mechanism, until the claw on sliding gear 4 combines with the draw-in groove on driving gear 5, now, sliding gear 4 directly band nutating gear 5 rotates backward, thereby make driving gear 5 carry out reverse power output by differential mechanism 6, realization falls back.After unpowered input, driving shaft 3 is rotated further under the drive of wheel, now, due to one-way turning mechanism, have that (its internal friction power is very little, be not enough to drive sliding gear to rotate), so driving shaft 3 cannot drive movable pulley to rotate, thus realize the free sliding of electric motor car.
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 (5)
1. an electric motor vehicle sliding differential speed motor assembly, comprise motor and gearbox, described motor is fixedly installed in gearbox one side, in gearbox, be provided with driving shaft, sliding gear, driving gear, shift fork and differential mechanism, described driving gear is fixed on driving shaft, it is characterized in that: on described driving shaft, have Turbo Flora keyway, sliding gear is arranged on driving shaft by one-way turning mechanism; Described one-way turning mechanism have with driving shaft on the helical spline tooth that matches of Turbo Flora keyway, make the sliding gear can axially moving around along driving shaft; At sliding gear, near a side of driving gear, be provided with several claws, at driving gear, near a side of sliding gear, be provided with the draw-in groove corresponding with claw; On driving shaft, be provided with one for limiting the barrier structure of sliding gear mobile position, this barrier structure is positioned at the side that sliding gear deviates from driving gear; Described shift fork comprises jaw and fork handle, and described jaw fork is located in the fork slot of sliding gear, and is close to fork slot bottom surface, 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 fork handle is positioned at this chute away from one end of jaw, and can move along chute;
The output shaft of described motor is connected with a power output gear after stretching into gearbox, this power output gear and sliding gear engagement, the length of described power output gear is greater than the length of sliding gear, and sliding gear is meshed with power output gear all the time in driving shaft moves around process;
Described driving gear is meshed with the power input tooth of differential mechanism.
2. electric motor vehicle sliding differential speed motor assembly according to claim 1, is characterized in that: the side at chute has a limit structure, and after power input stops, this limit structure can stop sliding gear to move to driving gear direction along driving shaft.
3. electric motor vehicle sliding differential speed motor assembly according to claim 1, it is characterized in that: described one-way turning mechanism comprises unilateral bearing and slide bushing, described unilateral bearing is set on slide bushing and with slide bushing and fixes, described slide bushing has the helical spline tooth matching with Turbo Flora keyway, described sliding gear is set on unilateral bearing, and fixes with this unilateral bearing.
4. electric motor vehicle sliding differential speed motor assembly according to claim 1, is characterized in that: a side that deviates from driving gear at sliding gear is provided with a prong for coaxial line with it, and described fork slot is positioned on this prong and around circumferential a week of prong.
5. electric motor vehicle sliding differential speed motor assembly according to claim 1, is characterized in that: 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 |
|---|---|---|---|
| CN201420245196.6U CN203880023U (en) | 2014-05-14 | 2014-05-14 | Electric vehicle sliding differential motor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245196.6U CN203880023U (en) | 2014-05-14 | 2014-05-14 | Electric vehicle sliding differential motor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880023U true CN203880023U (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420245196.6U Expired - Fee Related CN203880023U (en) | 2014-05-14 | 2014-05-14 | Electric vehicle sliding differential motor assembly |
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| Country | Link |
|---|---|
| CN (1) | CN203880023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443428A (en) * | 2018-04-26 | 2018-08-24 | 罗刚 | A kind of electronic automobile-used multi gear position gearbox |
| CN110319154A (en) * | 2019-08-06 | 2019-10-11 | 臧宏 | The gearbox of electric vehicle |
-
2014
- 2014-05-14 CN CN201420245196.6U patent/CN203880023U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443428A (en) * | 2018-04-26 | 2018-08-24 | 罗刚 | A kind of electronic automobile-used multi gear position gearbox |
| CN108443428B (en) * | 2018-04-26 | 2023-06-16 | 罗刚 | Multi-gear gearbox for electric vehicle |
| CN110319154A (en) * | 2019-08-06 | 2019-10-11 | 臧宏 | The gearbox of electric vehicle |
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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: 20141015 Termination date: 20160514 |