CN206845872U - A kind of electric automobile automatic gear-shifting two-stage gear engaging device - Google Patents
A kind of electric automobile automatic gear-shifting two-stage gear engaging device Download PDFInfo
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- CN206845872U CN206845872U CN201720491041.4U CN201720491041U CN206845872U CN 206845872 U CN206845872 U CN 206845872U CN 201720491041 U CN201720491041 U CN 201720491041U CN 206845872 U CN206845872 U CN 206845872U
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Abstract
The utility model discloses a kind of electric automobile automatic gear-shifting two-stage gear engaging device, including driven tooth and ring gear, multiple one-level external splines have been evenly arranged on the composition surface of the driven tooth, two level external splines is additionally provided between the adjacent one-level external splines of each two, and the length of two level external splines is less than one-level external splines, quantity and one-level external splines identical and the internal spline that can be mutually twisted with one-level external splines, the beneficial effects of the utility model are uniformly provided with the inner ring of ring gear is：Both ensured in the case of gear is nonsynchronous can gearing in, increase the stability of a system, ensure to hang again and reduce gear clearance after shelves, increase the comfortableness of driving.
Description
Technical field
A kind of shifting apparatus is the utility model is related to, specifically a kind of electric automobile automatic gear-shifting two-stage gear engaging device.
Background technology
The shifting gear of the popular electric automobile (automobile containing low-speed electronic) of in the market has three kinds of schemes.
The first scheme, gear clearance is small (no synchronizer), such as Figure 10：Ring gear (3) is under the promotion of shift fork along-x sides
To being moved to the left, the parallel internal spline of single gap (4) external splines (2) parallel with the single gap of driven tooth (1) of ring gear (3) is engaged,
After extension shelves finish, in terms of-x directions, we can obtain profile 11.In fig. 11, the parallel internal spline of single gap (4) is to the left
The parallel external splines of single gap (2) on the left side is encountered in rotation, and the parallel external splines of single gap (2) on the right is equally encountered to right rotation,
It will be seen that the space very little that the parallel internal spline of single gap (4) can move freely, spline occlusion are very tight from Figure 11
It is close.This scheme is widely used in the manual gearbox of electric three-wheel, four-wheel at present.Its disadvantage is,
It must stop and hang shelves.If hanging shelves in traveling, because the rotating speed of driven tooth (1) and ring gear (3) before shelves are hung in Figure 10 is not
Unanimously, the parallel internal spline of single gap (4) in Figure 11 cannot be introduced into narrow between the parallel external splines (2) of two adjacent single gaps
Small space, cause cannot hang up on file, it may appear that the continuous shock sound rattled away.And automatic transmission is must to be carried out in traveling
, so automatic transmission can not take this scheme；
Second scheme, gear clearance is big (no synchronizer), such as Figure 12：The parallel external splines of double gap (5) and double gap are put down
Row internal spline (6) all reduces quantity to equal proportion, increases the distance between adjacent spline.When ring gear (3) pushing away in shift fork
Under dynamic, it is moved to the left along-x directions, the parallel internal spline of double gap (6) the outer flower parallel with the double gap of driven tooth (1) of ring gear (3)
Key (5) is engaged.After the completion of hanging shelves, in terms of-x directions, profile 13 can be obtained.In fig. 13, it may be seen that double gap
Free gap of the parallel internal spline (6) between the parallel external splines (5) of two adjacent double gaps is very big.So in fig. 12
In the case that driven tooth (1) and ring gear (3) rotating speed are inconsistent, the parallel internal spline of double gap (6) in Figure 13 can also enter calmly
Enter between the parallel external splines (5) of two adjacent double gaps, easily hang shelves.This scheme is adopted by the gearbox of automatic transmission at present
Receive, ensureing can be with gearing in traveling.Its shortcomings that, is, in low speed driving conditions, when stepping on the gas with accelerator releasing, and figure
In the parallel internal spline of double gap (6) in 13 gap larger between the parallel external splines (5) of two adjacent double gaps back and forth
Strike note must can be heard than more serious by hitting, and gear is easily damaged, and driver can feel obvious pause and transition in rhythm or melody
Sense；
The third scheme, gear clearance is small, while increases synchronizer.Below figure 14：Ring gear (3) is with synchronous ring (8) one
Rise and rotate, each other without relative angular speed, when ring gear (3) is under the promotion of shift fork, with synchronous ring (8) along-x directions
When being moved to the left, synchronous ring (8) contacts the composition surface (9) of driven tooth (1), the inner surface of synchronous ring (8) and engagement first
Face produces powerful frictional force and forces driven tooth (1) consistent with the rotating speed of synchronous ring (8) between (9), that is, with ring gear (3)
Rotating speed it is consistent.At this moment ring gear (3) crosses synchronous ring (8) and continues to be moved to the left, the single gap taper internal spline (10) of ring gear (3)
It is engaged with the single gap taper external splines (7) of driven tooth (1).After extension shelves finish, in terms of-x directions, we can obtain section
Figure 15.In fig.15, it may be seen that single gap taper internal spline (10) is just outside two adjacent single gap tapers
In gap between spline (7).This scheme is widely used in manual transmission and the parallel axes fluid drive of oil firing automobile
In case.The gearbox of automobile is because there is clutch, and engine and gear completely disengage, synchronous ring (8) and composition surface in Figure 14
(9) frictional force between simply overcomes the inertia of gear in itself, thus damage less, it is necessary to thrust it is also little.But it is used in
When on electric car, because without clutch, the frictional force between synchronous ring (8) and composition surface (9) in Figure 14 will overcome
The inertia of the rotor to be connected together with gear, it is necessary to frictional force it is very big.This not only easily wears synchronous ring, more important
, promote the strength of ring gear (3) very big, otherwise will result in ring gear (3) and push away not in place, then cause the list in Figure 15
Be engaged between gap taper internal spline (10) and single gap taper external splines (7) it is bad, cause hang shelves failure, vehicle can not be forward
Traveling.
The shortcomings that present technology is：The first above-mentioned scheme, can not use in automatic gear-box, cannot hang up on file；It is above-mentioned
Second scheme, gear clearance is big, and gear shift pause and transition in rhythm or melody sense is strong, and gear shift noise is big, and gear is easily damaged and driver comfort lacks；
What the third above-mentioned scheme, easily extension shelves failure, that is, the big daily life of a family were said loses rank, and vehicle can not travel.
Utility model content
The purpose of this utility model is to provide a kind of electric automobile automatic gear-shifting two-stage gear engaging device, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of electric automobile automatic gear-shifting two-stage gear engaging device, including driven tooth and ring gear, the composition surface of the driven tooth
On be evenly arranged multiple one-level external splines, be additionally provided with two level external splines, and two level between the adjacent one-level external splines of each two
The length of external splines is less than one-level external splines, quantity and one-level external splines identical is uniformly provided with the inner ring of ring gear and can be with one
The internal spline that level external splines is mutually twisted.
As further program of the utility model：The length of the two level external splines is smaller than the length of one-level external splines
3mm。
As the utility model further scheme：A kind of electric automobile automatic gear-shifting two-stage gear engaging device, including from
Moving teeth, ring gear and synchronous ring, multiple taper one-level external splines have been evenly arranged on the composition surface of the driven tooth, each two is adjacent
Taper one-level external splines between be additionally provided with taper two level external splines, and the length of taper two level external splines is less than outside taper one-level
Spline, synchronous ring be placed in ring gear and with ring gear synchronous axial system, the inner ring of synchronous ring and the composition surface CONTACT WITH FRICTION of driven tooth, tooth
The inner ring of ring is provided with taper internal spline that is equal with taper one-level external splines quantity and being mutually twisted.
As the utility model further scheme：The length of the taper two level external splines is than taper one-level external splines
The small 3mm of length.
As the utility model further scheme：A kind of electric automobile automatic gear-shifting two-stage gear engaging device, including from
Moving teeth, ring gear and synchronous ring, multiple taper external splines have been evenly arranged on the composition surface of the driven tooth, synchronous ring is placed in ring gear
Interior and synchronous rotation, the quantity one-level internal spline equal with taper external splines, each two are uniformly provided with the inner ring of ring gear
Two two level internal splines being equally spaced are provided between adjacent one-level internal spline, the length of each two level internal spline is respectively less than
One-level internal spline, and the both ends of two level internal spline at the both ends open of ring gear apart from equal.
As the utility model further scheme：The unilateral length of the two level internal spline is shorter than one-level internal spline
4mm, the short 8mm of overall length.
As the utility model further scheme：Flower outside the one-level internal spline, two level internal spline, taper one-level
Key, taper two level external splines, single gap taper external splines, single gap taper internal spline, taper external splines and taper internal spline are equal
In pyramidal structure wide outside and narrow inside.
Compared with prior art, the beneficial effects of the utility model are：There is no the gear of synchronizer, although cheap,
But can not ensure to hang the reliability and comfortableness of shelves simultaneously, part is easily damaged；And after improving, extension shelves are easy, hang flower after shelves
Key free gap is small, and part is less likely to be damaged, and driver comfort increase, the gear that high-end vehicle uses has synchronizer, once together
Step failure, gear cannot hang up on file, and vehicle can not travel, and after improving, even if synchronization failure, gear can also hang up one step,
Ensure vehicle energy normally travel, after hanging up one step, gear can continue to hang two level gear, ensure that gear clearance is small, increase is driven
The comfortableness sailed.
Brief description of the drawings
Fig. 1 is a kind of structural representation of electric automobile automatic gear-shifting two-stage gear engaging device in embodiment 1.
Fig. 2 is the structural representation that one-level external splines is engaged with internal spline in embodiment 1.
Fig. 3 is the structural representation that two level external splines is engaged with internal spline in embodiment 1.
Fig. 4 is a kind of structural representation of electric automobile automatic gear-shifting two-stage gear engaging device in embodiment 2
Fig. 5 is the structural representation that taper one-level external splines is engaged with taper internal spline in embodiment 2.
Fig. 6 is the structural representation of taper two level external splines and taper internal spline in embodiment 2.
Fig. 7 is a kind of structural representation of electric automobile automatic gear-shifting two-stage gear engaging device in embodiment 3.
Fig. 8 is the structural representation that one-level internal spline is engaged with taper external splines in embodiment 3.
Fig. 9 is the structural representation that two level internal spline is engaged with taper external splines in embodiment 3.
Figure 10 is the structural representation of the first scheme in background technology.
Figure 11 is that the first the parallel internal spline of scheme single gap external splines parallel with single gap is mutually twisted in background technology
Structural representation.
Figure 12 is the structural representation of second scheme in background technology.
Figure 13 is that the parallel external splines of second scheme double gap internal spline parallel with double gap is mutually twisted in background technology
Structural representation.
Figure 14 is the structural representation of the third scheme in background technology.
Figure 15 is that the third scheme single gap taper external splines and single gap taper internal spline are mutually twisted in background technology
Structural representation.
In figure：1-- driven tooths, the parallel external splines of 2- single gaps, 3- ring gears, the parallel internal spline of 4- single gaps, 5- double gaps
Parallel external splines, the parallel internal spline of 6- double gaps, 7- single gap tapers external splines, 8- synchronizations ring, 9- composition surfaces, 10- single gaps
Taper internal spline, 11- one-levels external splines, 12- two levels external splines, 13- internal splines, 14- taper one-levels external splines, 15- tapers two
Level external splines, 16- tapers internal spline, 17- tapers external splines, 18- one-levels internal spline, 19- two level internal splines.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment 1
Refer to Fig. 1~3, in the utility model embodiment, a kind of electric automobile automatic gear-shifting two-stage gear engaging device, including
Driven tooth 1 and ring gear 3, multiple one-level external splines 11 have been evenly arranged on the composition surface 9 of the driven tooth 1, each two is adjacent
Two level external splines 12 is additionally provided between one-level external splines 11, and the length of two level external splines 12 is less than one-level external splines 11, ring gear 3
Inner ring on the internal spline 13 that is uniformly provided with quantity and the identical of one-level external splines 11 and can be mutually twisted with one-level external splines 11,
When ring gear 3 is moved to the left, internal spline 13 is engaged with one-level external splines 11 first, because between adjacent one-level external splines 11
Gap is larger, and internal spline 13 is easy for entering between two adjacent one-level external splines 11, easily hangs up first order gear,
Ensure the normally travel of vehicle, when ring gear 3 continues to be moved to the left, internal spline 13 is engaged with two level external splines 12, is thus hung
Upper second level gear, and the gap that internal spline 13 is engaged with two level external splines 12 is small, ensures the comfortableness driven.
The length of the two level external splines 12 is smaller 3mm than the length of one-level external splines 11.
Embodiment 2
Refer to Fig. 4~6, a kind of electric automobile automatic gear-shifting two-stage gear engaging device, including driven tooth 1, ring gear 3 and synchronization
Ring 8, multiple taper one-level external splines 14, the adjacent taper one-level of each two have been evenly arranged on the composition surface 9 of the driven tooth 1
Taper two level external splines 15 is additionally provided between external splines 14, and the length of taper two level external splines 15 is less than taper one-level external splines
14, synchronous ring 8 is placed in ring gear 3 and connect with the synchronous axial system of ring gear 3, the inner ring of synchronous ring 8 with the composition surface friction of driven tooth 1
Touch, the inner ring of ring gear 3 is provided with taper internal spline 16 that is equal with taper one-level 14 quantity of external splines and being mutually twisted, works as ring gear
When the synchronous ring 8 of 3 drives is moved to the left, taper internal spline 16 is engaged with taper one-level external splines 14 first, because adjacent two
Gap between taper one-level external splines 14 is big, and taper internal spline 16 is easily advanced into two adjacent taper one-level external splines
Between 14, first order gear is easily hung up, when then ring gear 3 continues to be moved to the left, taper internal spline 16 can be with taper two level
External splines 15 is engaged, and interocclusal clearance is smaller, ensures the comfortableness driven.
The length of the taper two level external splines 15 is smaller 3mm than the length of taper one-level external splines 14.
Embodiment 3
Refer to Fig. 7~9, a kind of electric automobile automatic gear-shifting two-stage gear engaging device, including driven tooth 1, ring gear 3 and synchronization
Ring 8, has been evenly arranged multiple taper external splines 17 on the composition surface of the driven tooth 1, synchronous ring 8 be placed in ring gear 3 and and its
Synchronous axial system, the quantity one-level internal spline 18 equal with taper external splines 17 is uniformly provided with the inner ring of ring gear 3, each two is adjacent
One-level internal spline 18 between be provided with two two level internal splines 19 being equally spaced, the length of each two level internal spline 19 is small
In one-level internal spline 18, and the both ends of two level internal spline 19 at the both ends open of ring gear 3 apart from equal, when ring gear 3 drives
When synchronous ring 8 is moved to the left, the taper external splines 17 in driven tooth 1 is engaged with one-level internal spline 18 first, because adjacent two
Gap between individual one-level internal spline 18 is larger, taper external splines 17 be easily advanced into two adjacent one-level internal splines 18 it
Between, first order gear is easily hung up, ensures the normally travel of vehicle, when then ring gear 3 is continued to left movement, taper external splines 17
It is engaged with two level internal spline 19, hangs up second level gear, because between is engaged between taper external splines 17 and two level internal spline 19
Gap is small, ensures the comfortableness driven.
The unilateral length of the two level internal spline 19 is than 18 short 4mm of one-level internal spline, the short 8mm of overall length.
The one-level internal spline 18, two level internal spline 19, taper one-level external splines 14, taper two level external splines 15, separate room
Gap taper external splines 7, single gap taper internal spline 10, taper external splines 17 and taper internal spline 16 are in taper wide outside and narrow inside
Structure, it is not easy after occlusion out of supply.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of electric automobile automatic gear-shifting two-stage gear engaging device, including driven tooth and ring gear, it is characterised in that the driven tooth
Composition surface on be evenly arranged multiple one-level external splines, flower outside two level is additionally provided between the adjacent one-level external splines of each two
Key, and the length of two level external splines is less than one-level external splines, it is identical with one-level external splines to be uniformly provided with quantity on the inner ring of ring gear
And the internal spline that can be mutually twisted with one-level external splines.
A kind of 2. electric automobile automatic gear-shifting two-stage gear engaging device according to claim 1, it is characterised in that the two level
The length of external splines is smaller 3mm than the length of one-level external splines.
3. a kind of electric automobile automatic gear-shifting two-stage gear engaging device according to claim 1, it is characterised in that including driven
Tooth, ring gear and synchronous ring, multiple taper one-level external splines have been evenly arranged on the composition surface of the driven tooth, each two is adjacent
Taper two level external splines is additionally provided between taper one-level external splines, and the length of taper two level external splines is less than flower outside taper one-level
Key, synchronous ring be placed in ring gear and with ring gear synchronous axial system, the inner ring of synchronous ring and the composition surface CONTACT WITH FRICTION of driven tooth, ring gear
Inner ring be provided with and the taper internal spline that is mutually twisted equal with taper one-level external splines quantity.
A kind of 4. electric automobile automatic gear-shifting two-stage gear engaging device according to claim 3, it is characterised in that the taper
The length of two level external splines is smaller 3mm than the length of taper one-level external splines.
5. a kind of electric automobile automatic gear-shifting two-stage gear engaging device according to claim 3, it is characterised in that including driven
Tooth, ring gear and synchronous ring, multiple taper external splines have been evenly arranged on the composition surface of the driven tooth, synchronous ring is placed in ring gear
And synchronous rotation, the quantity one-level internal spline equal with taper external splines, each two phase are uniformly provided with the inner ring of ring gear
Two two level internal splines being equally spaced are provided between adjacent one-level internal spline, the length of each two level internal spline is respectively less than one
Level internal spline, and the both ends of two level internal spline at the both ends open of ring gear apart from equal.
A kind of 6. electric automobile automatic gear-shifting two-stage gear engaging device according to claim 5, it is characterised in that the two level
The unilateral length of internal spline is shorter 4mm than one-level internal spline, the short 8mm of overall length.
A kind of 7. electric automobile automatic gear-shifting two-stage gear engaging device according to claim 1 or 3 or 5, it is characterised in that institute
State one-level internal spline, two level internal spline, taper one-level external splines, taper two level external splines, single gap taper external splines, single gap
Taper internal spline, taper external splines and taper internal spline are in pyramidal structure wide outside and narrow inside.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720491041.4U CN206845872U (en) | 2017-05-05 | 2017-05-05 | A kind of electric automobile automatic gear-shifting two-stage gear engaging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720491041.4U CN206845872U (en) | 2017-05-05 | 2017-05-05 | A kind of electric automobile automatic gear-shifting two-stage gear engaging device |
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| CN206845872U true CN206845872U (en) | 2018-01-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027214A (en) * | 2018-08-17 | 2018-12-18 | 清华大学 | A kind of no-clutch is without synchronizer mechanical automatic gearbox shifting system and method |
-
2017
- 2017-05-05 CN CN201720491041.4U patent/CN206845872U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027214A (en) * | 2018-08-17 | 2018-12-18 | 清华大学 | A kind of no-clutch is without synchronizer mechanical automatic gearbox shifting system and method |
| CN109027214B (en) * | 2018-08-17 | 2020-09-08 | 清华大学 | Clutch-free synchronizer-free mechanical automatic gearbox gear shifting system and method |
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