CN109723785B - Two-gear transmission based on pure electric automobile - Google Patents
Two-gear transmission based on pure electric automobile Download PDFInfo
- Publication number
- CN109723785B CN109723785B CN201910199746.2A CN201910199746A CN109723785B CN 109723785 B CN109723785 B CN 109723785B CN 201910199746 A CN201910199746 A CN 201910199746A CN 109723785 B CN109723785 B CN 109723785B
- Authority
- CN
- China
- Prior art keywords
- gear
- assembly
- parking
- shaft assembly
- worm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 34
- 210000000078 claw Anatomy 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims 2
- 238000007493 shaping process Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 230000004323 axial length Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Landscapes
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a two-gear transmission based on a pure electric automobile, which consists of a gear shifting assembly, an intermediate shaft assembly, an input shaft assembly, an output gear, a differential mechanism shell, a parking ratchet wheel, bolts and a parking assembly, wherein the gear shifting assembly changes the output power of the intermediate shaft assembly, the input shaft assembly drives the intermediate shaft assembly, the output gear is driven by the intermediate shaft assembly, the differential mechanism transmits torques with different magnitudes to different wheels, the parking ratchet wheel is fixedly connected to the output gear by the bolts, the parking assembly is started to clamp the parking ratchet wheel, the braking of the output gear is realized, and the parking ratchet wheel is prevented from being densely arranged around the intermediate shaft assembly, so that the axial length of the transmission is reduced, and the effect of integral arrangement is facilitated.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a two-gear transmission based on a pure electric automobile.
Background
The pure electric automobile is a clean energy automobile, and along with the great promotion of energy conservation and emission reduction, the pure electric automobile becomes a great development trend, and the electric automobile needs a parking system to meet the automobile parking requirement, but the brake ratchet wheel of the existing electric automobile is arranged on an intermediate shaft on a gearbox, and gears and synchronizers at the position of the intermediate shaft are arranged, so that the axial length of a transmission is increased, and the problem of being unfavorable for overall arrangement is solved.
Disclosure of Invention
The invention aims to provide a two-gear transmission based on a pure electric automobile, and aims to solve the problems that the axial length of the transmission is increased due to the ratchet layout in the prior art, and the integral arrangement is not facilitated.
In order to achieve the above purpose, the two-gear transmission based on the pure electric vehicle comprises a gear shifting assembly, an intermediate shaft assembly, an input shaft assembly, an output gear, a differential mechanism shell, a parking ratchet wheel, a bolt and a parking assembly, wherein the intermediate shaft assembly is clamped with the gear shifting assembly, the input shaft assembly is in transmission connection with the intermediate shaft, the output gear is externally meshed with the intermediate shaft assembly, the differential mechanism shell is internally meshed with the output gear, the parking ratchet wheel is fixedly connected with the differential mechanism shell, a fixing hole is formed in the side face of the output gear, a matching hole is formed in the side face of the parking ratchet wheel, the bolt is in interference fit with the parking ratchet wheel and is in interference fit with the output gear, the bolt penetrates through the matching hole and penetrates into the fixing hole, and the parking assembly is clamped with the parking ratchet wheel.
Wherein an outer circumference of the parking ratchet is outside an outer circumference of the output gear.
The parking assembly comprises a pawl, a pawl pin, a spring, a cam, a toothed bar, a worm wheel, a worm and a motor, wherein one end of the pawl is clamped with the parking ratchet wheel and is located at the outer side of the pawl, the pawl pin is rotationally connected with the other end of the pawl, one end of the spring is fixedly connected with the pawl pin, the other end of the spring is fixedly connected with the pawl, the cam is propped against one end of the pawl away from the pawl pin and is located on one side of the pawl away from the parking ratchet wheel, the toothed bar is in interference fit with the cam, the worm wheel is in transmission connection with the toothed bar, the worm is in transmission connection with the worm wheel, and the motor is fixedly connected with the worm.
The parking ratchet is characterized in that the parking ratchet is provided with a groove, the groove is located on the outer circumference of the parking ratchet, the pawl comprises an annular section and a protruding block, one end of the annular section is rotationally connected with the cam claw pin, the protruding block is integrally formed with the other end of the annular section, is located on one side, facing the parking ratchet, of the annular section, and is clamped into the groove.
The annular section is provided with a sliding groove on one side facing the cam, and the cam is abutted against the annular section and positioned in the sliding groove.
The intermediate shaft assembly comprises an intermediate shaft body, a first-stage driven gear, a second-stage driven gear and a synchronizer, wherein the intermediate shaft body is externally meshed with the output gear, the first-stage driven gear is connected with an intermediate shaft body bearing and is positioned on the outer side of the intermediate shaft body, the second-stage driven gear is connected with the intermediate shaft body bearing and is positioned on the outer side of the intermediate shaft body, and the synchronizer is fixedly connected with the intermediate shaft body and is positioned between the first-stage driven gear and the second-stage driven gear and is clamped with the gear shifting assembly.
The input shaft assembly comprises a primary driving gear, a secondary driving gear and an input shaft body, wherein the primary driving gear is externally meshed with the primary driven gear, the secondary driving gear is externally meshed with the secondary driven gear, and the input shaft body is fixedly connected with the primary driving gear and the secondary driving gear.
The gear shifting assembly comprises a gear shifting fork, a gear shifting shaft, a worm wheel shaft, a second worm and a gear shifting motor, wherein the gear shifting fork is clamped with the synchronizer, the gear shifting shaft is in sliding connection with the gear shifting fork, the worm wheel shaft is externally meshed with the gear shifting shaft, the second worm is in rotary connection with the worm wheel shaft, and the gear shifting motor is fixedly connected with the second worm.
The synchronizer comprises a gear hub, a support column, a sleeve and a synchronizing ring, wherein the gear hub is fixedly connected with the intermediate shaft body and is positioned on the outer side of the intermediate shaft body, a notch is formed in the outer surface of the gear hub, the support column is slidably connected with the gear hub and is positioned in the notch, the sleeve is slidably connected with the support column and is positioned on the outer side of the gear hub and is engaged with a gear shifting fork, the number of the synchronizing rings is two, the synchronizing rings are in transmission connection with the gear hub and are in interference with the support column, and the sliding directions of the synchronizing rings face to the primary driven gear and the secondary driven gear respectively.
The support column comprises a rectangular plate and a trapezoid plate, the rectangular plate is in sliding connection with the gear hub and is located in the notch, the trapezoid plate is integrally formed with the rectangular plate and located on one side, away from the gear hub, of the rectangular plate and is in interference with the sleeve, and the longest axis of the trapezoid plate is perpendicular to the axis of the intermediate shaft body.
The two-gear transmission based on the pure electric automobile is composed of a gear shifting assembly, an intermediate shaft assembly, an input shaft assembly, an output gear, a differential case, a parking ratchet wheel, bolts and a parking assembly, wherein the gear shifting assembly changes the output power of the intermediate shaft assembly, the input shaft assembly drives the intermediate shaft assembly, the output gear is driven by the intermediate shaft assembly to drive the differential mechanism to act so as to transfer torques with different magnitudes to different wheels, the parking ratchet wheel is fixedly connected to the output gear by the bolts, the parking assembly is started to clamp the parking ratchet wheel, the output gear is braked, the parking ratchet wheel is prevented from being densely arranged around the intermediate shaft assembly, and therefore the axial length of the transmission is reduced, and the effect of integral arrangement is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a two speed transmission of the present invention;
FIG. 2 is a schematic structural view of a shift assembly of the present invention;
FIG. 3 is a schematic illustration of the construction of the parking assembly of the present invention;
FIG. 4 is a connection diagram of the park pawl and the output gear of the present invention;
FIG. 5 is a schematic view of the construction of the pawl of the present invention;
FIG. 6 is a schematic diagram of the structure of the synchronizer of the present invention;
FIG. 7 is a schematic view of the structure of the hub of the present invention;
Fig. 8 is a schematic view of the structure of the hub and the strut of the present invention.
In the figure: 100-two speed transmission, 10-shift assembly, 11-shift fork, 12-shift shaft, 13-worm wheel shaft, 14-second worm, 15-shift motor, 20-intermediate shaft assembly, 21-intermediate shaft body, 22-primary driven gear, 23-secondary driven gear, 24-synchronizer, 241-hub, 2411-notch, 242-strut, 2421-rectangular plate, 2422-trapezoidal plate, 243-sleeve, 244-synchronizer ring, 30-input shaft assembly, 31-primary drive gear, 32-secondary drive gear, 33-input shaft body, 40-output gear, 41-fixed hole, 50-differential housing, 60-parking ratchet, 61-mating hole, 62-groove, 70-bolt, 80-parking assembly, 81-pawl, 811-annular segment, 8111-sliding groove, 812-bump, 82-pawl pin, 83-spring, 84-cam, 85-tooth bar, 86-worm gear, 87-worm, 88-motor.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, in the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 8, the present invention provides a two-speed transmission based on a pure electric vehicle, where the two-speed transmission 100 includes a gear shifting assembly 10, an intermediate shaft assembly 20, an input shaft assembly 30, an output gear 40, a differential case 50, a parking ratchet 60, a bolt 70, and a parking assembly 80, the intermediate shaft assembly 20 is engaged with the gear shifting assembly 10, the input shaft assembly 30 is in driving connection with the intermediate shaft, the output gear 40 is in external engagement with the intermediate shaft assembly 20, the differential case 50 is in internal engagement with the output gear 40, the parking ratchet 60 is fixedly connected with the differential case 50, a fixing hole 41 is formed on a side surface of the output gear 40, a mating hole 61 is formed on a side surface of the parking ratchet 60, the bolt 70 is in interference fit with the parking ratchet 60, and is in interference fit with the output gear 40, and the bolt 70 passes through the mating hole 61 and penetrates into the fixing hole 41, and the parking assembly 80 is engaged with the parking ratchet 60.
In a conventional transmission with only one gear reduction, the parking ratchet 60 is generally arranged on the input shaft assembly 30, the input shaft assembly 30 is directly connected with the automobile engine, if no gear is engaged, the braking effect and the non-braking effect on the input shaft assembly 30 are consistent, and the gears on the intermediate shaft assembly 20 are in idle states, so that the braking effect is only achieved when the parking ratchet 60 is arranged on the input shaft assembly 30 and is engaged in the gear, but when the parking ratchet 60 is engaged in the gear reduction for a long time, the gear is engaged with the gears on the input shaft assembly 30 to reduce the service life of the transmission; the parking ratchet 60 can then only be arranged on the intermediate shaft assembly 20 or on the output gear 40; however, the intermediate shaft assembly 20 is formed by the gears and synchronizer 24, and the placement of the park ratchet 60 on the intermediate shaft assembly 20 will further increase the axial length of the transmission. In the present embodiment, the parking ratchet 60 is disposed on the output gear 40, the parking ratchet 60 is fixedly connected to the parking assembly 80 by the bolt 70 being simultaneously interference-fitted with the parking ratchet 60 and the parking assembly 80, and the parking ratchet 60 is not in contact with the differential case 50, so that the axial length of the transmission is reduced, which is advantageous for the overall arrangement.
Further, an outer circumference of the parking ratchet 60 is outside an outer circumference of the output gear 40. In the example of the present embodiment, when the parking assembly 80 acts on the parking ratchet 60, the occurrence of the tooth forming phenomenon with the output gear 40 can be avoided.
Further, the parking assembly 80 includes a pawl 81, a pawl pin 82, a spring 83, a cam 84, a toothed bar 85, a worm gear 86, a worm 87 and a motor 88, one end of the pawl 81 is engaged with the parking ratchet 60 and located at the outer side of the pawl 81, the pawl pin 82 is rotationally connected with the other end of the pawl 81, one end of the spring 83 is fixedly connected with the pawl pin 82, the other end of the spring 83 is fixedly connected with the pawl 81, the cam 84 is abutted to one end of the pawl 81 away from the pawl pin 82 and located at one side of the pawl 81 away from the parking ratchet 60, the toothed bar 85 is in interference fit with the cam 84, the worm gear 86 is in transmission connection with the toothed bar 85, the worm 87 is in transmission connection with the worm gear 86, and the motor 88 is fixedly connected with the worm gear 87. In the embodiment, the motor 88 rotates to further drive the worm 87 welded to the motor to rotate, the worm wheel 86 is driven by the worm 87, the axis of the worm wheel 86 is perpendicular to the axis of the worm 87, the toothed bar 85 is driven by the worm wheel 86 to further drive the cam 84 in clearance fit with the worm wheel 86 to rotate, the long radius of the cam 84 abuts against the pawl 81 to push one end of the pawl 81 close to the cam 84 to rotate towards the parking ratchet 60, the other end of the pawl 81 rotates around the pawl pin 82, and the pawl pin 82 is fixed on the gearbox shell until the pawl 81 is pushed by the long radius of the cam 84 to be clamped with the parking ratchet 60, so that the parking ratchet 60 is braked, and when a braking state is required to be released, only reverse rotation of the motor 88 is required to be realized, and the pawl is reset by the spring 83 in a matching manner, so that an automatic braking effect is achieved.
Further, the parking ratchet 60 has a groove 62, the groove 62 is located on the outer circumference of the parking ratchet 60, the pawl 81 includes an annular section 811 and a protrusion 812, one end of the annular section 811 is rotatably connected with the pawl pin 82 of the cam 84, the protrusion 812 is integrally formed with the other end of the annular section 811, and is located on a side of the annular section 811 facing the parking ratchet 60 and is snapped into the groove 62. In this embodiment, the annular section 811 drives the protruding block 812 to rotate toward the parking ratchet 60, and the width of the groove 62 is consistent with the width of the protruding block 812, so as to ensure that the protruding block 812 can be clamped into the groove 62, and braking of the parking ratchet 60 is achieved.
Further, the side of the annular segment 811 facing the cam 84 has a sliding groove 8111, and the cam 84 abuts against the annular segment 811 and is positioned in the sliding groove 8111. In the example of the present embodiment, the width of the sliding groove 8111 is identical to the width of the cam 84, so that the cam 84 can be restricted by the inner side wall of the sliding groove 8111 to generate excessive relative sliding when the annular segment 811 is abutted.
Further, the intermediate shaft assembly 20 includes an intermediate shaft body 21, a primary driven gear 22, a secondary driven gear 23 and a synchronizer 24, wherein the intermediate shaft body 21 is externally meshed with the output gear 40, the primary driven gear 22 is in bearing connection with the intermediate shaft body 21 and is positioned at the outer side of the intermediate shaft body 21, the secondary driven gear 23 is in bearing connection with the intermediate shaft body 21 and is positioned at the outer side of the intermediate shaft body 21, and the synchronizer 24 is fixedly connected with the intermediate shaft body 21, is positioned between the primary driven gear 22 and the secondary driven gear 23 and is clamped with the gear shifting assembly 10; the input shaft assembly 30 comprises a primary driving gear 31, a secondary driving gear 32 and an input shaft body 33, wherein the primary driving gear 31 is externally meshed with the primary driven gear 22, the secondary driving gear 32 is externally meshed with the secondary driven gear 23, and the input shaft body 33 is fixedly connected with the primary driving gear 31 and the secondary driving gear 32.
In this embodiment, the input shaft 33 is in driving connection with the output shaft of the automobile engine, and transmits the rotational torque to the primary driving gear 31 and the secondary driving gear 32, the primary driving gear 31 is externally meshed with the primary driven gear 22, and transmits the torque to the primary driven gear 22, meanwhile, the secondary driving gear is externally meshed with the secondary driven gear 23, and the torque is transmitted to the secondary driven gear 23, the primary driven gear 22 and the secondary driven gear 23 are both in bearing connection with the intermediate shaft 21, in the neutral state, the primary driven gear 22 and the secondary driven gear 23 are both idle relatively with the intermediate shaft 21, no torque is transmitted until the synchronizer 24 is driven by the gear shifting assembly 10 to generate a gear-in and gear-out action, and the transmission ratio between the primary driven gear 22 and the primary driving gear 23 and the transmission ratio between the secondary driven gear 23 and the secondary driving gear 32 are connected with the intermediate shaft 21, and the output ratio between the two driven gears 23 and 32 are different, and the output speeds are different.
Further, the gear shifting assembly 10 includes a gear shifting fork 11, a gear shifting shaft 12, a worm wheel shaft 13, a second worm 14 and a gear shifting motor 15, the gear shifting fork 11 is clamped with the synchronizer 24, the gear shifting shaft 12 is slidably connected with the gear shifting fork 11, the worm wheel shaft 13 is externally meshed with the gear shifting shaft 12, the second worm 14 is rotatably connected with the worm wheel shaft 13, and the gear shifting motor 15 is fixedly connected with the second worm 14. In the embodiment, the gear shifting motor 15 is rotated, the motor 88 rotates to drive the second worm 14 to rotate, the second worm 14 rotates to drive the worm wheel shaft 13 to rotate, the worm wheel shaft 13 drives the gear shifting fork 11 to move along the axial direction of the gear shifting shaft 12, a connection part of the turbine shaft and the gear shifting fork 11 adopts sector gear connection, the sliding distance of the gear shifting fork 11 is fixed, the gear shifting fork 11 pulls the synchronizer 24, and the effect of automatically shifting and reversing the synchronizer 24 is achieved.
Further, the synchronizer 24 includes a gear hub 241, a supporting column 242, a sleeve 243, and a synchronizing ring 244, where the gear hub 241 is fixedly connected to the intermediate shaft 21 and is located at the outer side of the intermediate shaft 21, the outer surface of the gear hub 241 is provided with a notch 2411, the supporting column 242 is slidably connected to the gear hub 241 and is located in the notch 2411, the sleeve 243 is slidably connected to the supporting column 242 and is located at the outer side of the gear hub 241 and is engaged with the shift fork 11, the number of synchronizing rings 244 is two, the synchronizing ring 244 is in transmission connection with the gear hub 241 and is in sliding connection with the gear hub 241 and is in interference with the supporting column, and the sliding directions of the synchronizing rings 244 face to the primary driven gear 22 and the secondary driven gear 23 respectively. In the example of the present embodiment, the sleeve 243 is driven by the shift fork 11 to slide along the axial direction of the intermediate shaft 21, so as to push the strut 242, the strut 242 pushes the synchronizing ring 244 to move toward the primary driven gear 22 or the secondary driven gear 23, the synchronizing ring 244 is meshed with the gear hub 241 until the synchronizing ring 244 is meshed with the primary driven gear 22 or the secondary driven gear 23, and the torque of the primary driven gear 22 or the secondary driven gear 23, which is relatively idle with respect to the intermediate shaft 21, is transferred to the synchronizing ring 244, and then transferred to the gear hub 241, and finally transferred to the intermediate shaft 21, and the two pushed synchronizing rings 244 are different, and finally the gears meshed therewith are also different, so as to realize the gear shifting function.
Further, the supporting post 242 includes a rectangular plate 2421 and a trapezoid plate 2422, the rectangular plate 2421 is slidably connected with the gear hub 241 and is located in the notch 2411, the trapezoid plate 2422 is integrally formed with the rectangular plate 2421, and is located at a side of the rectangular plate 2421 away from the gear hub 241 and is abutted against the sleeve 243, and the longest axis of the trapezoid plate 2422 is perpendicular to the axis of the intermediate shaft 21. In the example of the present embodiment, the rectangular plate 2421 serves to connect the gear hub 241 and the synchronizing ring 244 and push the synchronizing ring 244, the upper surface of the trapezoid plate 2422 is located outside the outer surface of the gear hub 241, and the longest axis of the trapezoid plate 2422 is perpendicular to the axis of the intermediate shaft body 21, thereby achieving the effect of avoiding the engagement of the trapezoid plate 2422 with the sleeve 243.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will understand that all or part of the above-described embodiments may be implemented and equivalents thereof may be modified according to the scope of the appended claims.
Claims (4)
1. Two-gear transmission based on pure electric vehicles, its characterized in that:
The gear shifting device comprises a gear shifting assembly, a middle shaft assembly, an input shaft assembly, an output gear, a differential mechanism shell, a parking ratchet wheel, a bolt and a parking assembly, wherein the middle shaft assembly is clamped with the gear shifting assembly, the input shaft assembly is in transmission connection with the middle shaft assembly, the output gear is in external engagement with the middle shaft assembly, the differential mechanism shell is in internal engagement with the output gear, the parking ratchet wheel is fixedly connected with the differential mechanism shell, a fixing hole is formed in the side face of the output gear, a matching hole is formed in the side face of the parking ratchet wheel, the bolt is in interference fit with the parking ratchet wheel and is in interference fit with the output gear, the bolt penetrates through the matching hole, the parking assembly is clamped with the parking ratchet wheel, the parking assembly comprises a pawl, a claw pin, a spring, a cam, a tooth bar, a worm and a motor, one end of the pawl is clamped with the parking ratchet wheel and is located on the outer side of the pawl, one end of the spring is in rotation connection with the other end of the pawl, one end of the worm wheel is in interference connection with the worm wheel, the other end of the pawl is in interference connection with the worm wheel and the cam is far away from one end of the annular boss, the annular boss is connected with one end of the annular boss is far away from the boss, and is connected with the boss, cam sliding fit is in the sliding tray, jackshaft subassembly includes jackshaft body, one-level driven gear, second grade driven gear and synchronous ware, the synchronous ware includes tooth hub, pillar, sleeve and synchronizer ring, tooth hub with jackshaft body fixed connection is located the outside of jackshaft body, have the notch on the surface of tooth hub, the pillar with tooth hub sliding connection, and be located in the notch, the sleeve with pillar sliding connection, and be located the outside of tooth hub, and with the shift fork block of shifting unit, the quantity of synchronizer ring is two, two the synchronizer ring with tooth hub transmission is connected, and with tooth hub sliding connection, and with the pillar contradicts, two the slip direction of synchronizer ring is oriented respectively one-level driven gear and second grade driven gear, the pillar includes rectangular plate and trapezoidal plate, the pillar with tooth hub sliding connection is located notch, the trapezoidal plate with rectangular plate an organic whole shaping is located and is kept away from to the pillar axis one side perpendicular to the rectangular plate with the jackshaft.
2. The two speed transmission as defined in claim 1, wherein: an outer circumference of the parking ratchet is outside an outer circumference of the output gear.
3. The two speed transmission as defined in claim 1, wherein: the input shaft assembly comprises a primary driving gear, a secondary driving gear and an input shaft body, wherein the primary driving gear is externally meshed with the primary driven gear, the secondary driving gear is externally meshed with the secondary driven gear, and the input shaft body is fixedly connected with the primary driving gear and the secondary driving gear.
4. A two speed transmission as in claim 3, wherein: the gear shifting assembly further comprises a gear shifting shaft, a worm wheel shaft, a second worm and a gear shifting motor, the gear shifting fork is clamped with the synchronizer, the gear shifting shaft is in sliding connection with the gear shifting fork, the worm wheel shaft is externally meshed with the gear shifting shaft, the second worm is in rotary connection with the worm wheel shaft, and the gear shifting motor is fixedly connected with the second worm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199746.2A CN109723785B (en) | 2019-03-15 | 2019-03-15 | Two-gear transmission based on pure electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199746.2A CN109723785B (en) | 2019-03-15 | 2019-03-15 | Two-gear transmission based on pure electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109723785A CN109723785A (en) | 2019-05-07 |
| CN109723785B true CN109723785B (en) | 2024-09-20 |
Family
ID=66302575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910199746.2A Active CN109723785B (en) | 2019-03-15 | 2019-03-15 | Two-gear transmission based on pure electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109723785B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203614727U (en) * | 2013-11-04 | 2014-05-28 | 重庆青山工业有限责任公司 | Parking system of automobile gearbox |
| CN206571926U (en) * | 2017-01-23 | 2017-10-20 | 重庆蓝黛动力传动机械股份有限公司 | The speed changer of electric car or hybrid vehicle |
| CN210371891U (en) * | 2019-03-15 | 2020-04-21 | 重庆青山工业有限责任公司 | Two-gear transmission based on pure electric vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4836664B2 (en) * | 2006-05-23 | 2011-12-14 | 本田技研工業株式会社 | Vehicle driving force transmission device |
| JP2008008444A (en) * | 2006-06-30 | 2008-01-17 | Ntn Corp | Reversing mechanism |
| JP2010007823A (en) * | 2008-06-30 | 2010-01-14 | Aisin Seiki Co Ltd | Gear locking device |
| KR20120138193A (en) * | 2011-06-14 | 2012-12-24 | 현대자동차주식회사 | Two-step transmission unit for electric vehicle |
| CN102720834B (en) * | 2012-06-20 | 2015-08-05 | 浙江吉利汽车研究院有限公司杭州分公司 | For the parking lock device in transmission for vehicles |
| CN104482137B (en) * | 2014-12-18 | 2017-06-23 | 重庆隆旺机电有限责任公司 | Double clutch speed-changing differential assemblies |
| CN208364772U (en) * | 2018-04-23 | 2019-01-11 | 株洲齿轮有限责任公司 | A kind of halting mechanism and automotive transmission |
-
2019
- 2019-03-15 CN CN201910199746.2A patent/CN109723785B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203614727U (en) * | 2013-11-04 | 2014-05-28 | 重庆青山工业有限责任公司 | Parking system of automobile gearbox |
| CN206571926U (en) * | 2017-01-23 | 2017-10-20 | 重庆蓝黛动力传动机械股份有限公司 | The speed changer of electric car or hybrid vehicle |
| CN210371891U (en) * | 2019-03-15 | 2020-04-21 | 重庆青山工业有限责任公司 | Two-gear transmission based on pure electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109723785A (en) | 2019-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7340973B2 (en) | Twin-clutch transmission | |
| US7097584B2 (en) | Synchronization device for a dual clutch gearbox based on at least one planetary gear set, and corresponding dual clutch gearbox | |
| US10539235B2 (en) | Internal electronic park actuator | |
| US5715901A (en) | Reduction gearset for electric vehicle | |
| CN101480940B (en) | Torque based park lock assembly | |
| CN108317247B (en) | Parking mechanism and car | |
| EP4063680B1 (en) | Two-speed transmission system and vehicle | |
| US4462274A (en) | Shiftable planetary gear train | |
| JP4127286B2 (en) | Parking lock device for transmission | |
| CN110219980B (en) | Gear shifting parking integrated system | |
| CN210371891U (en) | Two-gear transmission based on pure electric vehicle | |
| CN109723785B (en) | Two-gear transmission based on pure electric automobile | |
| CN107255123B (en) | Cantilever type planetary transmission one-way clutch | |
| JP7486844B2 (en) | Parking/clutch shared control device, operation method thereof, and vehicle | |
| CN210637494U (en) | Integrated system for gear shifting and parking | |
| CN111577889B (en) | Clutch and shared parking control device | |
| CN113915299B (en) | Transmission coupling/uncoupling device, electric drive device, and axle device | |
| CN114953985A (en) | Axle assembly with shift collar | |
| CN107314086B (en) | Multifunctional engine with anti-backward-sliding function and motor tricycle | |
| CN107416122B (en) | Transmission with backward slip prevention function and motor tricycle | |
| CN201027926Y (en) | Gear box | |
| JPH0140739Y2 (en) | ||
| CN213981863U (en) | Automobile speed changer | |
| CN221665212U (en) | Fixing mechanism, center shaft transmission and middle motor | |
| JP3132209B2 (en) | Spline shaft coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |