CN201679920U - Multi-gear differential speed changer - Google Patents
Multi-gear differential speed changer Download PDFInfo
- Publication number
- CN201679920U CN201679920U CN2009202741258U CN200920274125U CN201679920U CN 201679920 U CN201679920 U CN 201679920U CN 2009202741258 U CN2009202741258 U CN 2009202741258U CN 200920274125 U CN200920274125 U CN 200920274125U CN 201679920 U CN201679920 U CN 201679920U
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- Prior art keywords
- differential gear
- gear
- gear train
- shaft
- differential
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Abstract
The utility model discloses a multi-gear differential speed changer enabling a driver to shift gears without cutting off the clutch while providing ceaseless power and widely applicable to vehicles or various systems requiring the change of the transmission ratio. The speed changer further includes a speed changer shell (8), two sets of differential gear trains (3) as well as two sets of multi-gear toothed gear graduation systems with fixed axis (1) (2). The two sets of multi-gear toothed gear graduation systems with fixed axis are twin-shaft multi-gear speed changer, wherein the first set consists of odd number gears (1) and the second set consists of even number gears (2); one differential gear train is input differential gear train and the other is output differential gear train; the input shaft of an odd number gear is the shaft of a sun wheel axis of input differential gear train and the even number gear is the shaft of the other sun wheel axis of input differential gear train; the output shaft of an odd number gear is the shaft of a sun wheel axis of output differential gear train and the even number gear is the shaft of the other sun wheel axis of output differential gear train; the driving power is inputted by a planetary rack of one differential gear train and outputted by another of the differential gear train.
Description
Affiliated technical field
The present invention is a kind of many shift gears speed changer, can be widely used in the various systems that need the conversion velocity ratio such as automobile.
Technical background
Existing various multispeed manual transmission all exists power to be interrupted in shift process, needs to cut off the problem of clutch.Existing many shift gears speed changer exists when realizing many gears that the speed changer volume is big, gear is many, baroque shortcoming.
Summary of the invention
(1) technical problem
The present invention is a kind of many shift gears speed changer, need not cut off clutch, uninterruptible power in shift process.Simultaneously, the volume of speed changer dwindles greatly, and length has only 1/4th of existing speed changer, does not need complicated combinatory transmission when realizing many gears, only just can with single-stage.Can be widely used in the various systems that need the conversion velocity ratio such as automobile.
(2) technological scheme
The present invention is a kind of gear differential speed variator of many gears, comprise case of transmission (8), two groups of differential gear trains (3), keep off variable-speed gear system (1) (2) with two groups of dead axles constitutes more, two groups of fixed shaft gear train variable-speed gear systems are two-axis multi-gear transmission systems, wherein one group is odd number retaining (1), another group is an even number retaining (2), two groups of differential gear trains are that another group of input differential gear train is the output differential gear train for one group, the input shaft of odd number retaining is coaxial with a sun wheel shaft of input differential gear train, the input shaft of even number retaining is coaxial with another sun gear of input differential gear train, the output shaft of odd number retaining is coaxial with a sun wheel shaft of output differential gear train, and the output shaft of even number retaining is coaxial with another sun gear of output differential gear train; Power is by the planet carrier input of a differential gear train, by the planet carrier output of another differential gear train; Two groups of differential gear trains or wherein one group of differential gear train two sun wheel shaft respectively and be connected to break (4) (5) between the case of transmission, two groups of differential gear trains or wherein be connected to break (6) (7) between two sun wheel shaft of one group of differential gear train and the planet carrier separately.
Break between even number shift transmission input shaft and output shaft and case of transmission is in braking state, the even number shift transmission quit work when the break between odd number shift transmission input shaft and output shaft and the case of transmission was in open mode, power is transmitted by the odd number retaining, break between odd number shift transmission input shaft and output shaft and case of transmission is in braking state, when the break between even number shift transmission input shaft and output shaft and the case of transmission is in open mode, the odd number shift transmission quits work, power is transmitted by the even number retaining, break between even number retaining and odd number retaining and case of transmission all is in separated state, when two sun wheel shaft of one group of differential gear train and the break between the planet carrier master are in braking state, power is transmitted simultaneously by odd number retaining and even number retaining, its gear ratio is between odd number retaining and even number retaining, two sun wheel shaft of the differential gear train that closure is different and the break between its planet carrier, velocity ratio can be slightly different.
Power is during by odd number shift transmission transferring power, the even number retaining is in the lock state, the gear of even number retaining that at this moment can chosen in advance will change to when odd number keeps off transferring power, power is during by even number shift transmission transferring power, the odd number retaining is in the lock state, the gear of odd number retaining that at this moment can chosen in advance will change to when even number keeps off transferring power is because the gear rotational speed of selected gear is zero when selecting the gear that will change to, so do not need synchronizer.
For many gears differential speed variator that n odd number retaining and m even number retaining are arranged, except having n odd number retaining and m even number keep off, gear in the middle of also having two between each odd number retaining and the even number retaining, gear in the middle of having 2 * n * m, add and have 2 * n * m+n+m gear together, what wherein meet most gear velocity ratio rule is middle apron between each odd number retaining and even number retaining and adjacent odd number retaining and the even number retaining, sum has 2 * n * m-1, and other each retaining can be in special circumstances: use when quickening the anxious reduction of income as anxious.Odd number retaining and even number keep off gear stressed half of planet carrier arranged, so the axial dimension of gear can reduce by half, simultaneously under the situation that realizes identical gear number, the number of gear reduces half, respectively keeping off gear without synchronizer can closely arrange, synthesis result, the axial dimension of speed changer can shorten to 1/4th of former common manual speed changer.
Uninterrupted in order to realize the shift process medium power, break (11) (12) between odd number retaining and even number retaining and the case of transmission also connects its function of a free wheel device (13) (14) and is, when break (11) (12) locking, the speed changer transmission shaft can not rotate, when break (11) (12) when opening, the speed changer transmission shaft can only rotate to a direction, that also can substitute break and free wheel device and connect with other mechanical structure with identical function, as long as can realize identical functions; Two sun wheel shaft of differential gear train are connected in series a free wheel device (15) (16) with break (9) (10) between the planet carrier separately, its function is, when break (9) (10) locking, the rotating speed of speed changer transmission shaft can only be more than or equal to the rotating speed of planet carrier, break (9) (10) when opening the speed changer transmission shaft free to rotate, also can substitute the serial connection of break and free wheel device with other mechanical structure, as long as can realize identical functions with identical function.Because the effect of free wheel device is arranged, the midfeather time internally-powered of opening corresponding actuator and locking corresponding actuator in shift process still can power can not occur by the speed changer transmission and be interrupted.
Impact when making the smooth-going minimizing of shift process gearshift can substitute break with clutch, utilize the slip of clutch to reduce shift impact in shift process; Can also insert torsion vibration absorber or have other structure of identical function in the appropriate location of break, utilize the elasticity of torsion vibration absorber to reduce shift impact; Can also utilize the rotation speed change and the automatic locking linking mechanism of prime mover to realize no crash change of speed, open corresponding actuator during upshift earlier, reduce the rotating speed of prime mover afterwards, because of corresponding actuator is opened, the velocity ratio of speed changer can descend automatically, when the rotating speed of prime mover drops to when being complementary with the gear that will rise up into, because the effect of free wheel device, velocity ratio can be locked on the gear that will rise up into automatically, at this moment can finish the upshift operation by mechanical self-latching linking mechanism or electronics and the pneumatic automechanism locking corresponding actuator that triggers automatically.Open the rotating speed of the prime mover that raises after the corresponding actuator during downshift earlier, because of corresponding actuator is opened, the velocity ratio of speed changer can rise automatically, when the rotating speed of prime mover rises to when being complementary with the gear that will fall, because the effect of free wheel device, velocity ratio can be locked on the gear that will fall into automatically, at this moment can be by the mechanical self-latching linking mechanism that triggers automatically, or electronics and pneumatic automechanism locking corresponding actuator, finish downshift operation, more than three kinds of methods can integrated application to reach better effect.In the process of upshift and downshift, after corresponding actuator is opened, and break that accordingly should locking does not have before the locking, when prime mover quickens, the gear ratio of speed changer becomes low gear automatically, and when prime mover slowed down, the gear ratio of speed changer became high gear automatically, utilize this function of speed changer can realize the specific function that low gear acceleration high gear slides, be used in the performance that to improve automobile on the automobile.
Description of drawings
Fig. 1 is the schematic diagram of many retaining differential gear speed changers, and Fig. 2 is one seven forward gear, a many retainings differential gear speed changer example that reverses gear.
Embodiment
Fig. 1 is a specific embodiment, this is one seven forward gears and a speed changer that reverses gear, power is exported by output shaft (18) by input shaft (17) input, between input two solar shafts of differential gear train and the case of transmission and be connected to free wheel device (13) (14), break (11) (12), with be connected in series free wheel device (15) (16) and break (9) (10) between planet carrier, first gear break (20), second gear break (21), three retaining gear breaks (19), reverse gear break (22).
Each brake status such as following table when speed changer is in different gear:
√ represents that break opens in the table, the braking of * expression break, and the expression break promptly can be opened and can lock
When speed changer is in low gear and quickens state that high gear slides, make the gear ratio of speed changer be in low gear or high shifting state automatically by the rotating speed that changes prime mover, utilize again afterwards and trigger linkage self-locking mechanical mechanism or electronics and pneumatic mechanism locking corresponding actuator automatically, so just finished by the operation of low gear to high gear or the moving low gear gearshift of high gear, the impact the when method of this gearshift can be eliminated gearshift.
All breaks in this speed changer can partly or entirely substitute with clutch, gearshift mode like this is more versatile and flexible, function is more, such as break is changed into clutch at a retaining and between reversing gear or three retainings and reverse gear between can realize unpowered interruption level and smooth seamless excessively.
Claims (3)
1. the gear differential speed variator of gear more than a kind, comprise case of transmission (8), two groups of differential gear trains (3), keep off variable-speed gear system (1) (2) with two groups of dead axles constitutes more, it is characterized in that: two groups of fixed shaft gear train variable-speed gear systems are two-axis multi-gear transmission systems, wherein one group is odd number retaining (1), another group is an even number retaining (2), two groups of differential gear trains are that another group of input differential gear train is the output differential gear train for one group, the input shaft of odd number retaining is coaxial with a sun wheel shaft of input differential gear train, the input shaft of even number retaining is coaxial with another sun gear of input differential gear train, the output shaft of odd number retaining is coaxial with a sun wheel shaft of output differential gear train, and the output shaft of even number retaining is coaxial with another sun gear of output differential gear train; Power is by the planet carrier input of a differential gear train, by the planet carrier output of another differential gear train; Two groups of differential gear trains or wherein one group of differential gear train two sun wheel shaft respectively and be connected to break (4) (5) between the case of transmission, two groups of differential gear trains or wherein be connected to break (6) (7) between two sun wheel shaft of one group of differential gear train and the planet carrier separately.
2. the gear differential speed variator of many gears according to claim 1 is characterized in that: the break (11) (12) between odd number retaining and even number retaining and the case of transmission also connects a free wheel device (13) (14); Two sun wheel shaft of differential gear train are connected in series a free wheel device (15) (16) with break (9) (10) between the planet carrier separately.
3. according to claim 1 or the described many shift gears speed changer of claim 2, it is characterized in that: can substitute break (9) (10) (11) (12) with clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202741258U CN201679920U (en) | 2009-12-25 | 2009-12-25 | Multi-gear differential speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202741258U CN201679920U (en) | 2009-12-25 | 2009-12-25 | Multi-gear differential speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201679920U true CN201679920U (en) | 2010-12-22 |
Family
ID=43344964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202741258U Expired - Fee Related CN201679920U (en) | 2009-12-25 | 2009-12-25 | Multi-gear differential speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201679920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219958A (en) * | 2019-05-28 | 2019-09-10 | 刘云虹 | A kind of technical solution of double differectial three-step gear shift transmission system unit |
-
2009
- 2009-12-25 CN CN2009202741258U patent/CN201679920U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219958A (en) * | 2019-05-28 | 2019-09-10 | 刘云虹 | A kind of technical solution of double differectial three-step gear shift transmission system unit |
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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: 20101222 Termination date: 20131225 |