CN203248626U - Multi-clutch speed changing device - Google Patents
Multi-clutch speed changing device Download PDFInfo
- Publication number
- CN203248626U CN203248626U CN 201320231103 CN201320231103U CN203248626U CN 203248626 U CN203248626 U CN 203248626U CN 201320231103 CN201320231103 CN 201320231103 CN 201320231103 U CN201320231103 U CN 201320231103U CN 203248626 U CN203248626 U CN 203248626U
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Abstract
The utility model relates to a multi-clutch speed changing device which can meet the requirements for multiple gears. The multi-clutch speed changing device comprises a main input shaft, a main output shaft, multiple clutches and a planet row converging mechanism. Input parts for inputting torque are arranged on any two of a sun gear, a planet carrier and a gear ring of the planet row converging mechanism, and the remaining one is in transmission connection with the main output shaft coaxially. The multiple clutches comprise an input end in transmission connection with the main input shaft coaxially, at least two clutch output shafts and a clutch mechanism. The clutch output shafts comprise a first clutch output shaft and a second clutch output shaft which respectively correspond to two power input parts. More than two gear changing gear sets used for transmitting power between the corresponding power input parts and the multiple clutches are arranged between the first clutch output shaft and the second clutch output shaft and the corresponding power input parts. Each gear changing gear set comprises a hollow sleeve gear. A synchronizer is arranged between the two hollow sleeve gears which are paired and arrayed adjacently.
Description
Technical field
The utility model relates to a kind of multi-clutch speed change gear.
Background technique
At present speed changer technical development is rapid, double-clutch automatic gearbox particularly, and its technology is comparative maturity and because it has solved the problem that power transmission interrupts preferably, recently uses more and more.For example application number is 20082009555.6, notification number is disclosed a kind of double clutch five gear automatic speed variators of the Chinese patent of CN201265630Y, comprise that for the primary input axle that connects power source, double clutch, jack shaft and the main output shaft that is connected with primary input shaft drive double clutch comprises the input end, odd number shelves transmission shaft, the even number shelves transmission shaft that are connected with primary input axle coaxial transmission, reaches the clutch mechanism that is connected with odd number shelves transmission shaft or even number shelves transmission shaft driven for the selection input end.Be equipped with between the corresponding section of described odd number shelves transmission shaft and even number shelves transmission shaft and jack shaft corresponding strange, even number shelves gear train and corresponding very, even number shelves synchronizer, very, even number shelves gear train includes the free gear that on the corresponding axle of its transmitting torque empty set is rotated assembling, free gear that can be in paired odd number shelves gear train or the even number shelves gear train during corresponding synchronizer action and place axle another continuation maintenance empty set with transmitting torque that is connected.Because the corresponding odd number shelves of a clutch in the double clutch, the corresponding even number shelves of another clutch, when vehicle is hung into a gear, another clutch and corresponding next gear are in readiness by corresponding synchronizer, as long as separating, current gear just can engage at once next gear, therefore two clutch gearboxes select switching speed very fast, solved preferably the problem that power transmission interrupts.
But, gear complicated at applying working condition requires in the more situation, the speed changer that for example uses on the microtractor, and existing dual-clutch transmission can't satisfy demand for control.
The model utility content
The purpose of this utility model provides a kind of a kind of multi-clutch speed change gear that can satisfy many gears demand.
The technical solution adopted in the utility model is: a kind of multi-clutch speed change gear, comprise the primary input axle for the power input, the main output shaft of outputting power, also comprise multi-clutch and the planet row mechanism of confluxing, the described planet row mechanism of confluxing comprises sun gear, planet wheel, planet carrier and gear ring, described sun gear, planet carrier is connected with the gear ring three any two be provided with for the input block of moment of torsion input and to remain one be to be connected with described main output shaft coaxial transmission, described multi-clutch comprises the input end that is connected with primary input axle coaxial transmission, the clutch mechanism that at least two clutch output shafts and being used for select input end and corresponding clutch output shaft to be in transmission connection, described clutch output shaft comprises the first clutch output shaft and the second clutch output shaft that respectively corresponding two power input parts arrange, be provided with the plural change gear group of selecting for transferring power between corresponding power input part and multi-clutch between described the first clutch output shaft and the second clutch output shaft and each self-corresponding power input part, each described free gear that includes empty set rotation assembling on the corresponding axle of its transferring power in the change gear group that selects, corresponding with same clutch output shaft plural to select the free gear in the change gear group be to select the gear shift gear with one to one in couples adjacent arrangement of relation by what set, is provided with the synchronizer that for selecting this one of them right free gear and place axle to be connected another free gear continues the maintenance empty set between the two paired free gears.
Described input block comprise that the sun gear upper driving connects to the sun gear input shaft of sun gear input torque and be connected in the gear ring external tooth to the gear ring input torque on the outer circumferential face of gear ring, described planet carrier is to be connected with described main output shaft coaxial transmission.
The described change gear group of selecting comprises that the empty set rotation is assemblied in forward gears driving gear and the reverse driving gear on described the first clutch output shaft, described forward gears driving gear and reverse driving gear is arranged in juxtaposition and be provided with between the two that another continues to keep the handoff synchronizer that turns to that the switching gear ring turns to that is used for of empty set with the first clutch output shaft fixed connection for selecting both one, described forward gears driving gear and gear ring directly mesh, and are provided with the reverse idler gear that turns to for changing gear ring between described reverse driving gear and the gear ring external tooth.
Described clutch output shaft also comprises the 3rd clutch output shaft that corresponding sun gear input shaft arranges, be provided with the plural change gear group of selecting for transferring power between sun gear input shaft and multi-clutch between described the 3rd clutch output shaft and the sun gear input shaft, respectively select the change gear group to include the free gear of empty set rotation assembling on the corresponding axle of its transferring power, each free gear is to select the gear shift gear with one to one in couples adjacent arrangement of relation by what set, is provided with the synchronizer of another free gear continuation maintenance empty set for selecting this one of them right free gear and place axle to be connected between the two paired free gears.
The change gear group of selecting between described the 3rd clutch output shaft and the sun gear input shaft comprises that the first odd number shelves that select the process of power shift setting according to setting select change gear group and the second odd number shelves to select the change gear group, the change gear group of selecting between described the second clutch output shaft and the sun gear input shaft comprises that the first even number shelves that select the process of power shift setting according to setting select change gear group and the second even number shelves to select the change gear group, respectively select the change gear group to include driving gear and the driven gear of pair of meshing transmission.
The multi-clutch speed change gear is provided be used to controlling described clutch mechanism by the clutch operation of setting the rule action, for the selector device that selects of controlling each described synchronizer action.
Described reverse idler gear is that the reverse gear shaft by correspondence rotates and is assemblied on the multi-clutch speed change gear, the multi-clutch speed change gear also comprises corresponding described primary input axle, main output shaft, the speed probe for detection of the rotating speed of each root axle that sun gear input shaft and each clutch output shaft arrange, also comprise be used to the rotary speed information that obtains described speed probe and according to rotary speed information and control described clutch operation and the electronic control unit that selects the selector device action, the signal output part of speed probe is connected with the signal input part of electronic control unit, electronic control unit and described clutch operation and select the selector device control connection.
Adopt the technique scheme in the utility model, the power that is input to the multi-clutch input end by the primary input axle can pass through the first clutch output shaft, the second clutch output shaft, corresponding change gear group and the microsyn output of selecting is to conflux input block in the mechanism of planet row, then export to sun gear, on any two among planet carrier and the gear ring three, planet row is confluxed, and two corresponding parts all can obtain kind of the number rotating speed identical with selecting change gear group group number in the mechanism, conflux and export by main output shaft by one of the residue among the three by the planet row mechanism of confluxing again, the kind number of output speed equals the product of the group number that selects the change gear group corresponding to the group number that select change gear group corresponding with the first clutch output shaft and the second clutch output shaft, thereby can satisfy many gears demand.
Description of drawings
Fig. 1 a: embodiment's of a kind of multi-clutch speed change gear of the utility model drive mechanism schematic diagram.
The name of each reference character is called among the figure: 1-the first clutch output shaft, 2-housing, 3-reverse driving gear, 4-turns to handoff synchronizer, 5-forward gears driving gear, 6-IV shelves driving gear, 7-II shelves driving gear, 8-the second clutch output shaft, 9-III shelves driving gear, 10-I shelves driving gear, 11-the 3rd clutch output shaft, 12-clutch operation, the 13-clutch housing, 14-primary input axle, 15-motor, the 16-first clutch, 17-second clutch, 18-three-clutch, 19-I shelves driven gear, 20-speed probe, 21-sun gear input shaft, 22-odd number shelves synchronizer, 23-III shelves driven gear, 24-II shelves driven gear, 25-even number shelves synchronizer, 26-IV shelves driven gear, 27-gear ring, 28-selects selector device, the 29-planet wheel, 30-planet carrier, 31-sun gear, the 32-main output shaft, the 33-electronic control unit.
Embodiment
An embodiment of a kind of multi-clutch speed change gear of the utility model as shown in Figure 1, it is the multi-clutch speed change gear that uses in a kind of microtractor, the primary input axle 14 that comprises housing 2, is in transmission connection with the output shaft of motor 15, be used for outside speed changer main output shaft 32, multi-clutch and the planet row of the output torque mechanism of confluxing, also comprise by the clutch operation 12 of correspondence, the control system of speed variator that selects selector device 28, speed probe 20 and electronic control unit 33 etc. to consist of.
The clutch mechanism that input end, three clutch output shafts that multi-clutch comprises clutch housing 13, connect with primary input axle 14 coaxial transmissions and being used for select input end and corresponding clutch output shaft to be in transmission connection.Input end, corresponding clutch output shaft, clutch mechanism are equivalent to a clutch, in the present embodiment, multi-clutch comprises that first clutch 16, second clutch 17 and 18, three clutch output shafts of three-clutch are respectively the first clutch output shaft 1, the second clutch output shaft 8 and the 3rd clutch output shaft 11 that corresponding each clutch arranges.Wherein first clutch 16 is odd number shelves clutches, and second clutch 17 is even number shelves clutches, and both are equivalent to double clutch of the prior art, can cooperate realization to select fast gear shift with corresponding select change gear group and synchronizer.Wherein the 3rd clutch output shaft 11 is the odd number shelves output shaft of axle sleeve form, the second clutch output shaft 8 is the even number shelves output shaft of axle sleeve form, the 3rd even number shelves output shaft is the switching shaft that turns to of solid shaft form, being used for switching gear ring 27 turns to, the 3rd clutch output shaft 11 coaxial sleeves are located on the second clutch output shaft 8, and the second clutch output shaft 8 coaxial sleeves are located on the first clutch output shaft 1.
Each clutch all with on-off control mechanism control connection accordingly, described clutch operation 12 and electronic control unit 33 control connections, thereby optionally the input end of multi-clutch is in transmission connection with corresponding clutch output shaft at synchronization according to the rule of setting, makes the transmission of power of motor 15 to the clutch output shaft of correspondence.
Be equipped with between the corresponding section of described the 3rd clutch output shaft 11 and the second clutch output shaft 8 and sun gear input shaft 21 for sun gear input shaft 21 with accordingly between the clutch output shaft two of transferring power select the change gear group, the change gear group of selecting between described the 3rd clutch output shaft 11 and the sun gear input shaft 21 comprises that the first odd number shelves that select the process of power shift setting according to setting select change gear group and the second odd number shelves to select the change gear group, the change gear group of selecting between described the second clutch output shaft 8 and the sun gear input shaft 21 comprises that the first even number shelves that select the process of power shift setting according to setting select change gear group and the second even number shelves to select the change gear group, respectively select the change gear group to include driving gear and the driven gear of pair of meshing transmission, be respectively I shelves driving gear 10, II shelves driving gear 7, III shelves driving gear 9, the I shelves driven gear 19 of IV shelves driving gear 6 and corresponding engagement, II shelves driven gear 24, III shelves driven gear 23, IV shelves driven gear 26.Wherein I, II, III, IV shelves driven gear are that empty set is rotated the free gear that is assemblied on the sun gear input shaft 21.Select the gear shift gear according to what set, I shelves driven gear 19, III shelves driven gear 23 are corresponding in couples adjacent arrangements and are provided with for selecting this right one of them to be connected with sun gear input shaft 21 another between the two to continue to keep the odd number shelves synchronizer 22 of empty set, II, IV shelves driven gear be corresponding in couples adjacent arrangement and be provided with between the two for selecting this right one of them to be connected and the even number shelves synchronizer 25 of another continuation maintenance empty set with sun gear input shaft 21.Certainly, more than respectively to select the velocity ratio of change gear group be to select the process of power shift setting according to what set, different, change to realize different rotating speeds.
The described planet row mechanism of confluxing comprises the sun gear 31 that is connected with described sun gear input shaft 21 coaxial transmissions, planet wheel 29, the planet carrier 30 that is connected with main output shaft 32 coaxial transmissions, and gear ring 27, be installed with on the outer circumferential face of gear ring 27 to the gear ring external tooth of gear ring 27 input torques, empty set is rotatably equipped with a forward gears driving gear 5 and a reverse driving gear 3 on described the first clutch output shaft 1, described forward gears driving gear 5 and reverse driving gear 3 be arranged in juxtaposition and be provided with between the two for selecting both one to be connected with the first clutch output shaft 1 another continue to keep empty set be used for that switching gear ring 27 turns to turn to handoff synchronizer 4, described forward gears driving gear 5 directly meshes with the gear ring external tooth, is provided with the reverse idler gear that turns to for changing gear ring 27 between described reverse driving gear 3 and the gear ring external tooth.
Odd number shelves synchronizer 22, even number shelves synchronizer 25, turn to handoff synchronizer 4 all with corresponding selector device 28 control connections of selecting, described clutch operation 12 and electronic control unit 33 control connections, wherein electronic control unit 33 is ECU, be that related domain is used to control the conventional means that selects selector device and clutch operation action, concrete structure corresponding in the utility model repeats no more herein.Described reverse idler gear is that the reverse gear shaft by correspondence rotates and is assemblied on the multi-clutch speed change gear, the speed probe 20 for detection of the rotating speed of each root axle that described a kind of multi-clutch speed change gear comprises that corresponding described primary input axle 14, main output shaft 32, sun gear input shaft 21, three clutch output shafts and reverse gear shaft arrange, electronic control unit 33 can obtain the rotary speed information of each speed probe 20.During work, electronic control unit 33 carries out Discern and judge according to the tach signal that each speed probe 20 transmits to the running state of speed changer, and according to the process of power shift that selects of setting, when needs select gear-change operation, by clutch operation 12 with select selector device 28 to control respectively each clutch and select gear shift to move with each synchronizer, by first clutch 16, second clutch 17, odd number shelves synchronizer 22, the rotating speed of even number shelves synchronizer 25 co-controlling sun gear input shafts 21 and sun gear 31, by three-clutch 18, turn to turning to and rotating speed of handoff synchronizer 4 control gear rings 27, then conflux by planet carrier 30 to main output shaft 32 output by the planet row mechanism of confluxing, realize speed change.
A kind of multi-clutch speed change gear of the utility model can be realized 4 forward gearss and 4 reverse gears.Turn to handoff synchronizer 4 according to the left side of figure in conjunction with the time, first clutch 16 combinations, second clutch 17 combinations, exportable 2 forward gearss of even number shelves synchronizer 25 left and right engagements, three-clutch 18 combinations, exportable 2 of odd number shelves synchronizer 22 left and right engagements are advanced.In like manner, turn to handoff synchronizer 4 according to the right side of figure in conjunction with the time, first clutch 16 combinations, second clutch 17 combinations, exportable 2 reverse gears of even number shelves synchronizer 25 left and right engagements, three-clutch 18 combinations, exportable 2 reverse gears of odd number shelves synchronizer 22 left and right engagements realize the gear output of 4+4.When selecting gear shift, only need to change second clutch 17, three-clutch 18 and odd number shelves synchronizer 22, even number shelves synchronizer 25, turn to the state of handoff synchronizer 4 just can realize selecting gear shift.
During speed changer work, the transfer route of each grade is similar, and transfer principle is identical.Tell about specifically hereinafter that reverse gear is the most high-grade, reverse gear lowest order and forward gears is the most high-grade, state and the power transmission line of each parts during four kinds of situations of forward gears lowest gear, the rest may be inferred for all the other gears, no longer specifically narration.
The forward gears lowest gear: first clutch 16 combinations, turn to handoff synchronizer 4 left side combinations, three-clutch 18 combinations, odd number shelves synchronizer 22 is according to the left side combination of figure.Power transmission line is: a route primary input axle 14 reaches the 3rd clutch output shaft 11, engagement through the driving and driven gear of I shelves reaches sun gear input shaft 21, one route primary input axle 14 reaches the first clutch output shaft 1, engagement through forward gears driving gear 5 and gear ring 27 reaches gear ring 27, and two-way power confluxes and reaches main output shaft 32 outputs by planet carrier 30 by the planet row mechanism of confluxing.
Forward gears is the most high-grade: first clutch 16 combinations, turn to handoff synchronizer 4 left side combinations, and second clutch 17 combinations, even number shelves synchronizer 25 is according to the right side combination of figure.Power transmission line is: a route primary input axle 14 reaches the second clutch output shaft 8, engagement through the driving and driven gear of IV shelves reaches sun gear input shaft 21, one route primary input axle 14 reaches the first clutch output shaft 1, engagement through forward gears driving gear 5 and gear ring 27 reaches gear ring 27, and two-way power confluxes and reaches main output shaft 32 outputs by planet carrier 30 by the planet row mechanism of confluxing.
The reverse gear lowest gear: first clutch 16 combinations, turn to handoff synchronizer 4 right side combinations, second clutch 17 combinations, even number shelves synchronizer 25 is according to the right side combination of figure.Power transmission line is: a route primary input axle 14 reaches the second clutch output shaft 8, engagement through the driving and driven gear of IV shelves reaches sun gear input shaft 21, one route primary input axle 14 reaches the first clutch output shaft 1, engagement through reverse driving gear 3 and reverse idler gear and reverse idler gear and gear ring 27 reaches gear ring 27, and two-way power confluxes and reaches main output shaft 32 by planet carrier 30 and export by the planet row mechanism of confluxing.
Reverse gear is the most high-grade: first clutch 16 combinations, turn to handoff synchronizer 4 right side combinations, and three-clutch 18 combinations, odd number shelves synchronizer 22 is according to the left side combination of figure.Power transmission line is: a route primary input axle 14 reaches the 3rd clutch output shaft 11, engagement through the driving and driven gear of I shelves reaches sun gear input shaft 21, one route primary input axle 14 reaches the first clutch output shaft 1, engagement through reverse driving gear 3 and reverse idler gear and reverse idler gear and gear ring 27 reaches gear ring 27, and two-way power confluxes and reaches main output shaft 32 by planet carrier 30 and export by the planet row mechanism of confluxing.
A kind of multi-clutch speed change gear in above-described embodiment is for microtractor, and certainly, this speed change gear also can be used for waiting on other vehicles on the automobile or similar transmission occasion.Strange, even number shelves synchronizer in above-described embodiment is that each driven gear that corresponding empty set rotation is assemblied on the sun gear input shaft 21 is arranged on the sun gear input shaft 21, in other embodiments of the present utility model, the corresponding driving gear that also can be arranged on first and second clutch output shaft is set to the empty set form, and corresponding driven gear is fixed on the sun gear input shaft 21, at this moment, strange, even number shelves synchronizer can be separately positioned on first and second corresponding clutch output shaft.And each clutch also can be arranged to the form of split, for example first clutch 16 and second clutch 17 is arranged separately, and three-clutch 18 separates separately setting, and is in transmission connection by clutch input end and the primary input axle 14 of correspondence.In addition, sun gear input shaft 21 is provided with two groups with the change gear group of selecting between the corresponding clutch output shaft in above-described embodiment, in other embodiments, selects the change gear group also can be arranged to more than two groups, increase simultaneously corresponding synchronizer and get final product, to adapt to the gear demand of varying number.
Claims (7)
1. multi-clutch speed change gear comprises for the primary input axle of power input, the main output shaft of outputting power, it is characterized in that: also comprise multi-clutch and the planet row mechanism of confluxing; The described planet row mechanism of confluxing comprises sun gear, planet wheel, planet carrier and gear ring, described sun gear, planet carrier and gear ring three are connected any two be provided with for the input block of moment of torsion input and to remain one be to be connected with described main output shaft coaxial transmission; The clutch mechanism that described multi-clutch comprises input end, at least two the clutch output shafts that connect with primary input axle coaxial transmission and is used for selecting input end and corresponding clutch output shaft to be in transmission connection; Described clutch output shaft comprises the first clutch output shaft and the second clutch output shaft that respectively corresponding two power input parts arrange, be provided with the plural change gear group of selecting for transferring power between corresponding power input part and multi-clutch between described the first clutch output shaft and the second clutch output shaft and each self-corresponding power input part, each described free gear that includes empty set rotation assembling on the corresponding axle of its transferring power in the change gear group that selects, corresponding with same clutch output shaft plural to select the free gear in the change gear group be to select the gear shift gear with one to one in couples adjacent arrangement of relation by what set, is provided with the synchronizer that for selecting this one of them right free gear and place axle to be connected another free gear continues the maintenance empty set between the two paired free gears.
2. a kind of multi-clutch speed change gear according to claim 1, it is characterized in that: described input block comprise that the sun gear upper driving connects to the sun gear input shaft of sun gear input torque and be connected in the gear ring external tooth to the gear ring input torque on the outer circumferential face of gear ring, described planet carrier is to be connected with described main output shaft coaxial transmission.
3. a kind of multi-clutch speed change gear according to claim 2, it is characterized in that: the described change gear group of selecting comprises that the empty set rotation is assemblied in forward gears driving gear and the reverse driving gear on described the first clutch output shaft, described forward gears driving gear and reverse driving gear is arranged in juxtaposition and be provided with between the two that another continues to keep the handoff synchronizer that turns to that the switching gear ring turns to that is used for of empty set with the first clutch output shaft fixed connection for selecting both one, described forward gears driving gear and gear ring directly mesh, and are provided with the reverse idler gear that turns to for changing gear ring between described reverse driving gear and the gear ring external tooth.
4. according to claim 2 or 3 described a kind of multi-clutch speed change gears, it is characterized in that: described clutch output shaft also comprises the 3rd clutch output shaft that corresponding sun gear input shaft arranges, be provided with the plural change gear group of selecting for transferring power between sun gear input shaft and multi-clutch between described the 3rd clutch output shaft and the sun gear input shaft, respectively select the change gear group to include the free gear of empty set rotation assembling on the corresponding axle of its transferring power, each free gear is to select the gear shift gear with one to one in couples adjacent arrangement of relation by what set, is provided with the synchronizer of another free gear continuation maintenance empty set for selecting this one of them right free gear and place axle to be connected between the two paired free gears.
5. a kind of multi-clutch speed change gear according to claim 4, it is characterized in that: the change gear group of selecting between described the 3rd clutch output shaft and the sun gear input shaft comprises that the first odd number shelves that select the process of power shift setting according to setting select change gear group and the second odd number shelves to select the change gear group, the change gear group of selecting between described the second clutch output shaft and the sun gear input shaft comprises that the first even number shelves that select the process of power shift setting according to setting select change gear group and the second even number shelves to select the change gear group, respectively select the change gear group to include driving gear and the driven gear of pair of meshing transmission.
6. a kind of multi-clutch speed change gear according to claim 3 is characterized in that: the multi-clutch speed change gear be provided be used to control described clutch mechanism by the clutch operation of setting the rule action, be used for the selector device that selects of each described synchronizer action of control.
7. a kind of multi-clutch speed change gear according to claim 6, it is characterized in that: described reverse idler gear is that the reverse gear shaft by correspondence rotates and is assemblied on the multi-clutch speed change gear, the multi-clutch speed change gear also comprises corresponding described primary input axle, main output shaft, the speed probe for detection of the rotating speed of each root axle that sun gear input shaft and each clutch output shaft arrange, also comprise be used to the rotary speed information that obtains described speed probe and according to rotary speed information and control described clutch operation and the electronic control unit that selects the selector device action, the signal output part of speed probe is connected with the signal input part of electronic control unit, electronic control unit and described clutch operation and select the selector device control connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320231103 CN203248626U (en) | 2013-04-28 | 2013-04-28 | Multi-clutch speed changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320231103 CN203248626U (en) | 2013-04-28 | 2013-04-28 | Multi-clutch speed changing device |
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| Publication Number | Publication Date |
|---|---|
| CN203248626U true CN203248626U (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320231103 Withdrawn - After Issue CN203248626U (en) | 2013-04-28 | 2013-04-28 | Multi-clutch speed changing device |
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| CN (1) | CN203248626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256351A (en) * | 2013-04-28 | 2013-08-21 | 河南科技大学 | Multi-clutch speed variator |
-
2013
- 2013-04-28 CN CN 201320231103 patent/CN203248626U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256351A (en) * | 2013-04-28 | 2013-08-21 | 河南科技大学 | Multi-clutch speed variator |
| CN103256351B (en) * | 2013-04-28 | 2015-08-19 | 河南科技大学 | Multi-clutch speed change gear |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131023 Effective date of abandoning: 20150819 |
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| RGAV | Abandon patent right to avoid regrant |