CN202326940U - Unidirectional synchronizer automated mechanical transmission (AMT) - Google Patents
Unidirectional synchronizer automated mechanical transmission (AMT) Download PDFInfo
- Publication number
- CN202326940U CN202326940U CN 201120519216 CN201120519216U CN202326940U CN 202326940 U CN202326940 U CN 202326940U CN 201120519216 CN201120519216 CN 201120519216 CN 201120519216 U CN201120519216 U CN 201120519216U CN 202326940 U CN202326940 U CN 202326940U
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- CN
- China
- Prior art keywords
- gear
- synchronizer
- overrun clutch
- mono
- directional overrun
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Abstract
The utility model discloses a unidirectional synchronizer automated mechanical transmission (AMT), which comprises an input shaft, an output shaft, an intermediate shaft, a reverse gear shaft, a synchronizer I, a synchronizer II, a unidirectional overrun clutch F1 and a unidirectional overrun clutch F2, wherein driving gears for various gears are arranged on the input shaft; driven gears meshed with the driving gears for various gears are arranged on the intermediate shaft; the synchronizer I is arranged between a first-gear driven gear and a second-gear driven gear; the synchronizer II is arranged between a third-gear driving gear and a fourth-gear driving gear; the unidirectional overrun clutch F1 is sleeved on the input shaft, an outer ring is fixed on the fourth-gear driving gear, and an inner ring is fixedly connected with the synchronizer II; and the unidirectional overrun clutch F2 is sleeved on the intermediate shaft, an outer ring is fixed on the second-gear driven gear, and an inner ring is fixedly connected with the synchronizer I. The unidirectional synchronizer AMT only controls one synchronizer, and off-gear and gear selection are avoided; and therefore, the time of taking a neutral gear and selecting gears is reduced, the gear shift process is stable, and the control process is simpler than the prior art.
Description
Technical field
The utility model relates to a kind of automatic transmission, relates in particular to a kind of one-way synchronization device AMT.
Background technique
Automatic mechanical transmission (AMT) is that conventional dry clutch and manual gear speed changer are carried out the new-type speed changer that electronic control realizes automaitc shfit.The shortcoming that the application of AMT has improved not only that AT automatic transmission transmission efficiency is low, complex structure, cost are high but also the application of modern electronic technology have kept the advantage of AT and gear type transmission, have improved the efficient and the power performance of gearshift to a great extent.
The AMT automatic transmission of existing technology has still been continued to use the characteristics of conventional synchronizer engagement driving.Exist among the present AMT when adjacent shifting gear is not synchronizer of common use, this moment, the switching of gear just need make a synchronizer break away from, thereby another synchronizer engagement transferring power will be controlled moving of two synchronizers like this; The AMT automatic transmission of existing technology the time will be passed through the clutch separation time in gearshift, plucked the neutral time, block selecting time, gearshift time and clutch time, so the gearshift time is long and control procedure is loaded down with trivial details.
The model utility content
To deficiency of the prior art; The utility model provides a kind of one-way synchronization device AMT that two synchronizers move that controls simultaneously when avoiding switching grade; This one-way synchronization device AMT can guarantee that not only the transmission of power but also gearshift the time only need control a synchronizer; Shorten the gearshift time, thereby shift process is easier, quick.
In order to solve the problems of the technologies described above, the utility model has adopted following technological scheme: one-way synchronization device AMT comprises input shaft, output shaft, jack shaft, reverse gear shaft, synchronizer I, synchronizer II, mono-directional overrun clutch F
1With mono-directional overrun clutch F
2Said input shaft is provided with the driving gear of each gear, and the driving gear of each gear comprises one grade of driving gear, second gear driving gear, third speed drive gear and fourth gear driving gear; Said jack shaft is provided with the driven gear that is meshed with each gear driving gear, and the driven gear of each gear comprises first speed driven gear, second gear driven gear, third gear driven gear and fourth gear driven gear; Said synchronizer I is arranged between first speed driven gear and the second gear driven gear, and said synchronizer II is arranged between third speed drive gear and the fourth gear driving gear; Said mono-directional overrun clutch F
1Be enclosed within on the input shaft mono-directional overrun clutch F
1The outer ring be fixed on the fourth gear driving gear mono-directional overrun clutch F
1Inner ring be fixedly connected with the synchronizer II; Said mono-directional overrun clutch F
2Be enclosed within on the jack shaft mono-directional overrun clutch F
2The outer ring be fixed on the second gear driven gear mono-directional overrun clutch F
2Inner ring be fixedly connected with the synchronizer I.
Compared with prior art, the one-way synchronization device AMT of the utility model has following advantage:
1, one-way synchronization device AMT only controls a synchronizer, has avoided the process of off-gear and block selecting, plucks neutral time and block selecting time thereby reduced; Make in the process of powershift shifting power reduce break period, shift process is steady, and control procedure is compared with prior art simpler simultaneously.
When 2, the speed changer of the utility model was operated in second gear and fourth gear, throttle unclamped, and vehicle gets into sliding state automatically, can save oil consumption; And the shortcoming that can not instead drag motor when the braking with respect to existing technological scheme through the mono-directional overrun clutch fuel-economizing, the utility model when braking, can through reduce or avoid hanging second gear, fourth gear realizes anti-dragged brake.
3, the one-way synchronization device AMT of the utility model only needs on jack shaft second gear driven gear and input shaft fourth gear driving gear, a mono-directional overrun clutch to be installed respectively; Need not on the structure of original AMT automatic transmission, to make big change; Therefore; Kept the favourable layout of original AMT automatic transmission, helped the technology upgrading of state internal speed changer manufacturer again, so the utility model has been realized a kind of AMT automatic transmission of being convenient to control.
Description of drawings
Fig. 1 is the structural representation of five retaining one-way synchronization device AMT.
In the accompanying drawing: 1-input shaft; 2-output shaft; 3-jack shaft; 4-reverse gear shaft; 5-synchronizer I; 6-one grade of driving gear; 7-second gear driving gear; 8-third speed drive gear; 9-synchronizer II; 10-mono-directional overrun clutch F
111-fourth gear driving gear; 12-reverse idler gear; 13-reverse driving gear; 14-synchronizer III; 15-output shaft output gear; 16-jack shaft output gear; 17-reverse gear output gear; 18-fourth gear driven gear; 19-third gear driven gear; 20-second gear driven gear; 21-mono-directional overrun clutch F
222-first speed driven gear.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done explanation in further detail.
As shown in Figure 1, one-way synchronization device AMT comprises input shaft 1, output shaft 2, jack shaft 3, reverse gear shaft 4, synchronizer I 5, synchronizer II 9, synchronizer III 14, mono-directional overrun clutch F
110 with mono-directional overrun clutch F
221.Input shaft 1 is provided with the driving gear of each gear, and the driving gear of each gear comprises one grade of driving gear 6, second gear driving gear 7, third speed drive gear 8, fourth gear driving gear 11 and reverse driving gear 13.Reverse gear shaft 4 is located between input shaft 1 and the jack shaft 3, and reverse gear shaft 4 is provided with reverse idler gear 12, and reverse idler gear 12 is meshed with reverse driving gear 13.Jack shaft 3 is provided with driven gear that is meshed with each gear driving gear and the reverse gear output gear 17 that is meshed with reverse idler gear 12, and the driven gear of each gear comprises first speed driven gear 22, second gear driven gear 20, third gear driven gear 19 and fourth gear driven gear 18.Output shaft 2 is with input shaft 1 coaxial distribution and can directly mesh five grades of power of transmission through synchronizer III 14 with input shaft 1; Output shaft 2 is provided with output shaft output gear 15; Also be provided with jack shaft output gear 16 on the jack shaft 3, jack shaft output gear 16 is meshed with output shaft output gear 15.Synchronizer I 5 is arranged on the jack shaft 3, and between first speed driven gear 22 and second gear driven gear 20.Synchronizer II 9 is arranged on the input shaft 1, and between third speed drive gear 8 and fourth gear driving gear 11.Synchronizer III 14 is arranged on the input shaft 1, and between reverse driving gear 13 and output shaft output gear 15.Synchronizer I 5, synchronizer II 9 and synchronizer III 14 respectively corresponding motors (or oil hydraulic cylinder) are controlled its pairing shift fork through motor (or oil hydraulic cylinder), thereby synchronizer are moved axially.Mono-directional overrun clutch F
110 are enclosed within on the input shaft 1 mono-directional overrun clutch F
110 outer ring is fixed on the fourth gear driving gear 11, mono-directional overrun clutch F
110 inner ring is fixedly connected with synchronizer II 9.Mono-directional overrun clutch F
221 are enclosed within on the jack shaft 3 mono-directional overrun clutch F
221 outer ring is fixed on the second gear driven gear 20, mono-directional overrun clutch F
221 inner ring is fixedly connected with synchronizer I 5.Mono-directional overrun clutch F
110 are outer ring drive inner ring rotation transmitting torque, mono-directional overrun clutch F
221 for rotating transmitting torque in inner ring drive outer ring.
When using the gear switch of two synchronizers respectively, only need to control a synchronizer, promptly throw off the directly mobile synchronizer that promptly will change gear of control of back at mono-directional overrun clutch, need not control the synchronizer that moves original gear again.This is because when going with high tap position, originally than the existence owing to mono-directional overrun clutch of the synchronizer of low-grade location, surmounts disengagement, thereby inner ring speed is trackslipped transmitting torque not automatically greater than outer ring speed.
Specify the power transmission of one-way synchronization device AMT on forward gear of the utility model below:
One grade rise second gear, third gear rises its principle of fourth gear and third gear falls in fourth gear, one grade of principle and existing technology principle basically identical fall in second gear, below brief account
Rising two retainings with a retaining is example:
When one-way synchronization device AMT puts in the first speed; Engine speed constantly increases; The clutch (not shown) is separated when automobile driving speed arrives the switching speed of two retainings, synchronizer I 5 move right under the drive of shift fork with second gear driven gear 20 on mono-directional overrun clutch F
2The engagement of 21 inner rings, after the control start clutch combined, engine power was delivered to mono-directional overrun clutch F through second gear driven gear 20
221 outer rings are when the outer ring rotating speed is increased to inner ring when identical with rotating speed, mono-directional overrun clutch F
221 wedgings, inner ring rotate under the drive of outer ring and transferring power, and gearshift is accomplished.
Falling third gear with fourth gear is example:
When one-way synchronization device AMT hangs fourth gear; Engine speed reduces gradually; Speed clutch separation when reaching the third gear shifting points is sailed in craspedodrome, and synchronizer II 9 breaks away from the fourth gear driving gear under the drive of shift fork that engagement is moved to the left and third speed drive gear engagement, mono-directional overrun clutch F thereupon
110 engage; The third gear gearshift is accomplished.
Highlighting two retainings below
rises five grades, five grades of third gear, fourth gear liters and falls the shift process that second gear falls in fourth gear, third gear.
Think that two retainings rise the third gear example:
When one-way synchronization device AMT hung second gear, engine speed constantly increased, when the automobile running rotating speed reaches the third gear gearshift and requires; Clutch (not shown) temporarily disconnected power; At this moment, need not to throw off second gear synchronizer I 5, directly synchronizer II 9 is moved to the left under the drive of shift fork and third speed drive gear 8 engagements; Because second gear principal and subordinate gear ratio is greater than the three-range transmission velocity ratio, so mono-directional overrun clutch F
221 outer ring speed are less than inner ring speed, mono-directional overrun clutch F
221 throw off automatically, and then control start clutch and combine, and accomplish the powershift of second gear to third gear, throw off the second gear synchronizer subsequently, and gearshift finishes.
In above-mentioned shift process, only need synchronizer of control, another synchronizer is because the existence of mono-directional overrun clutch and throwing off automatically so makes gear shift operation more simple and convenient, and power interruption time can reduce to shift gears the time.
In like manner, five grades of its principles of fourth gear liter are consistent with above-mentioned principle.
Falling fourth gear with five grades is example:
When needs when five grades are reduced to fourth gear, in advance the synchronizer II on the input shaft 19 is hung the fourth gear position, at this moment, the rotating speed of fourth gear driving gear 11 is higher than input shaft 1 rotating speed, mono-directional overrun clutch F
110 are in disengaged condition, and power remains through five grades of transmission, when speed reaches the fourth gear shifting points; Start clutch (not shown) temporarily disconnected power; After synchronizer III 14 is thrown off, control start clutch immediately and combine, engine power is delivered to mono-directional overrun clutch F through synchronizer II 9
110 inner rings are as mono-directional overrun clutch F
110 inner ring rotating speeds are increased to when identical with the outer ring rotating speed, mono-directional overrun clutch F
110 wedgings, outer ring rotate under the drive of inner ring and transferring power, and gearshift is accomplished.
In like manner, to fall its principle of second gear consistent with above-mentioned principle for third gear.
In automatic over-drive gear transmission AMT because the existence of mono-directional overrun clutch; When high tap position goes; Synchronizer during low-grade location can hang in advance into, throw off the transmission of low-grade location gear by mono-directional overrun clutch, directly the high tap position synchronizer is thrown off when lowering category; Can fall transmission and switch to low one-level gear, make the shift process that lowers category simpler and more direct efficient.
Explanation is at last; Above embodiment is only unrestricted in order to the technological scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technological scheme of the utility model; And not breaking away from the aim and the scope of the utility model technological scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (1)
1. one-way synchronization device AMT comprises input shaft (1), output shaft (2), jack shaft (3), reverse gear shaft (4), synchronizer I (5) and synchronizer II (9); Said input shaft (1) is provided with the driving gear of each gear, and the driving gear of each gear comprises one grade of driving gear (6), second gear driving gear (7), third speed drive gear (8) and fourth gear driving gear (11); Said jack shaft (3) is provided with the driven gear that is meshed with each gear driving gear, and the driven gear of each gear comprises first speed driven gear (22), second gear driven gear (20), third gear driven gear (19) and fourth gear driven gear (18); Said synchronizer I (5) is arranged between first speed driven gear (22) and the second gear driven gear (20), and said synchronizer II (9) is arranged between third speed drive gear (8) and the fourth gear driving gear (11); It is characterized in that: also comprise mono-directional overrun clutch F
1(10) and mono-directional overrun clutch F
2(21), said mono-directional overrun clutch F
1(10) be enclosed within on the input shaft (1) mono-directional overrun clutch F
1(10) outer ring is fixed on the fourth gear driving gear (11), mono-directional overrun clutch F
1(10) inner ring is fixedly connected with synchronizer II (9); Said mono-directional overrun clutch F
2(21) be enclosed within on the jack shaft (3) mono-directional overrun clutch F
2(21) outer ring is fixed on the second gear driven gear (20), mono-directional overrun clutch F
2(21) inner ring is fixedly connected with synchronizer I (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120519216 CN202326940U (en) | 2011-12-13 | 2011-12-13 | Unidirectional synchronizer automated mechanical transmission (AMT) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120519216 CN202326940U (en) | 2011-12-13 | 2011-12-13 | Unidirectional synchronizer automated mechanical transmission (AMT) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326940U true CN202326940U (en) | 2012-07-11 |
Family
ID=46438920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120519216 Expired - Fee Related CN202326940U (en) | 2011-12-13 | 2011-12-13 | Unidirectional synchronizer automated mechanical transmission (AMT) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494086A (en) * | 2011-12-13 | 2012-06-13 | 重庆市科学技术研究院 | Automatic overdrive transmission |
-
2011
- 2011-12-13 CN CN 201120519216 patent/CN202326940U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494086A (en) * | 2011-12-13 | 2012-06-13 | 重庆市科学技术研究院 | Automatic overdrive transmission |
| CN102494086B (en) * | 2011-12-13 | 2015-04-15 | 重庆市科学技术研究院 | Automatic overdrive transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131213 |