CN114321198A - Gear rack type dog clutch mechanism - Google Patents
Gear rack type dog clutch mechanism Download PDFInfo
- Publication number
- CN114321198A CN114321198A CN202111571096.3A CN202111571096A CN114321198A CN 114321198 A CN114321198 A CN 114321198A CN 202111571096 A CN202111571096 A CN 202111571096A CN 114321198 A CN114321198 A CN 114321198A
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- gear
- dog
- rack
- planet
- shaft
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- 230000007246 mechanism Effects 0.000 title claims abstract description 40
- 240000005002 Erythronium dens canis Species 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims description 4
- 241000282472 Canis lupus familiaris Species 0.000 claims 23
- 210000003464 cuspid Anatomy 0.000 abstract description 14
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 241000239290 Araneae Species 0.000 description 2
- 241000282465 Canis Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention discloses a gear rack type dog clutch mechanism, which comprises a planet wheel assembly, a dog mechanism, a gear condition and a rack driving assembly, wherein the planet wheel assembly is arranged on a gear rack; the planet gear component comprises a planet gear ring, a bearing, a planet carrier and a sun gear shaft, the bearing is arranged between the planet gear ring and the planet carrier, the planet gear is arranged on the planet carrier, a shaft of the gear box and the planet carrier rotate synchronously, and the sun gear shaft is connected with the driving motor; the dog tooth mechanism comprises a dog tooth gear ring, the dog tooth gear ring is fixedly connected with a rack piece, the rack driving assembly comprises a gear shaft, a gear shaft motor and a conversion driving mechanism, the gear shaft motor is used for driving the gear shaft to rotate, the rotating gear shaft drives the gear to move through the conversion driving mechanism, and then the separation and meshing of the dog tooth gear ring and the planet gear ring are controlled. The gear shaft motor is used for controlling the gear shaft and the rack component, so that the separation and the meshing of the canine tooth gear ring and the planetary gear ring are controlled, and the conversion of the driving mode of the gearbox is realized.
Description
Technical Field
The invention belongs to the technical field of gearboxes, and particularly relates to a rack and pinion type dog clutch mechanism.
Background
In the hybrid transmission, in order to increase the output torque of the driving motor, a set of planetary gear structures needs to be integrated. In order to realize various driving modes of fuel oil driving, pure electric driving and the like of the gearbox, a clutch is required to be adopted to control a gear ring of the planetary assembly. Most of the currently adopted clutches are traditional wet-type multi-plate clutches or multi-mode clutches, no synchronizing mechanism is arranged in the traditional wet-type multi-plate clutches or the multi-mode clutches, and when the traditional wet-type multi-plate clutches or the multi-mode clutches are combined, a control strategy is needed to limit the difference of the rotating speeds at two ends of the traditional wet-type multi-plate clutches or the multi-mode clutches within a small range to ensure the correct meshing of teeth, so that the response time of gear shifting is influenced, and the probability of vehicle shaking is increased.
Disclosure of Invention
In order to solve the technical problems, the invention provides a rack and pinion type dog clutch mechanism, which controls a gear shaft and a rack piece through a gear shaft motor, further controls the separation and the meshing of a dog gear ring and a planet gear ring, and realizes the conversion of the driving mode of a gearbox.
The technical scheme of the invention is as follows:
a gear rack type dog clutch mechanism comprises a planet wheel assembly, a dog mechanism, a gear rack and a rack driving assembly;
the planet gear assembly comprises a planet gear ring, a bearing, a planet carrier and a sun gear shaft, the bearing is arranged between the planet gear ring and the planet carrier, a planet gear mounting hole is formed in the planet carrier, a planet gear is mounted in the planet gear mounting hole, the planet carrier is connected with a first shaft of a gear box in a spline fit mode, the first shaft of the gear box and the planet carrier rotate synchronously, and the sun gear shaft is connected with a driving motor;
the dog tooth mechanism comprises a dog tooth gear ring, the dog tooth gear ring is fixedly connected with the rack piece, the rack driving assembly comprises a gear shaft, a gear shaft motor and a conversion driving mechanism, the gear shaft motor is used for driving the gear shaft to rotate, and the gear shaft rotates and drives the gear to move through the conversion driving mechanism, so that the dog tooth gear ring is controlled to be separated from and meshed with the planet gear ring.
Preferably, dog mechanism still includes dog integral key shaft, dog integral key shaft locates the inside of dog ring gear, dog ring gear is equipped with the internal spline, be equipped with the external spline on the dog integral key shaft, dog ring gear with dog integral key shaft passes through internal spline and external spline sliding fit.
Preferably, the dog tooth gear ring is provided with first dog teeth with long teeth and short teeth staggered at intervals in sequence, and the planet gear ring is provided with second dog teeth meshed with the first dog teeth.
Preferably, the tooth condition is fixedly connected with the canine tooth ring gear through a fastener, and the canine tooth system further comprises a position sensor, wherein the position sensor is used for detecting the moving distance of the canine tooth ring gear.
Preferably, the conversion driving mechanism includes a gear and a rack, the gear is disposed on the gear shaft, the rack is disposed on the gear condition, the gear is engaged with the rack, the rotation of the gear shaft drives the rotation of the gear, and the gear condition moves in a direction approaching or departing from the planetary gear ring along the axial direction under the action of the rack.
Preferably, the planet ring gear and the planet carrier are supported by the bearing, and the relative movement of the planet ring gear and the planet carrier can be ensured.
Preferably, the driving motor comprises a rotor bracket, and the sun gear shaft is connected with the rotor bracket in a spline fit mode.
The invention has the beneficial effects that:
the invention provides a gear and rack type dog clutch mechanism, which controls a gear shaft and a rack piece through a gear shaft motor, further controls the separation and the meshing of a dog gear ring and a planet gear ring, realizes the conversion of the driving mode of a gearbox, and has the advantages of simple structure, compact layout, high reliability, timely conversion response and the like.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the planetary gear assembly and the dog mechanism of the present invention.
Labeled as: 1. a planet wheel assembly; 2. a canine mechanism; 3. tooth condition; 4. a planetary gear ring; 5. a bearing; 6. a planet carrier; 7. a sun gear shaft; 8. a planet wheel; 9. a first shaft of the gearbox; 10. a canine tooth ring gear; 11. a gear shaft; 12. a gear shaft motor; 13. a canine spline shaft; 14. a position sensor; 15. a gear; 16. a rack.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 and 2, a rack and pinion type dog clutch mechanism includes a planetary wheel assembly 1, a dog mechanism 2, a rack member 3, a rack drive assembly, and a position sensor 14.
The planet wheel assembly 1 comprises a planet gear ring 4, a bearing 5, a planet carrier 6 and a sun wheel shaft 7, wherein the bearing 5 is arranged between the planet gear ring 4 and the planet carrier 6, the planet gear ring 4 and the planet carrier 6 are supported by the bearing 5, and the relative motion of the planet gear ring 4 and the planet carrier 6 can be ensured. Be equipped with planet wheel 8 mounting hole on the planet carrier 6, planet wheel 8 is installed to planet wheel 8 mounting hole, and planet carrier 6 links to each other with a gearbox 9 through spline fit's mode, and a gearbox 9 rotates with planet carrier 6 synchronous, and sun gear axle 7 links to each other with driving motor, and driving motor includes the spider, and sun gear axle 7 passes through spline fit with the spider and is connected.
The rack driving assembly comprises a gear shaft 11, a gear shaft motor 12 and a conversion driving mechanism, the gear shaft motor 12 is used for driving the gear shaft 11 to rotate, the conversion driving mechanism comprises a gear 15 and a rack 16, the gear 15 is arranged on the gear shaft 11, the rack 16 is arranged on a gear condition 3, the gear 15 is meshed with the rack 16, the rotation of the gear shaft 11 drives the gear 15 to rotate, the rack 3 moves towards the direction close to or far away from the planet gear ring 4 along the axial direction under the action of the rack 16, and then the dog gear ring 10 is controlled to be meshed with or separated from the planet gear ring 4. A position sensor 14 is also installed at the junction of the gear shaft 11 and the gear shaft drive motor 12, and the position sensor 14 is used for detecting the moving distance of the dog ring gear 10.
When the driving motor does not work, the canine tooth ring gear 10 needs to be disengaged, and the specific implementation process is as follows: the gear shaft motor 12 starts to drive the gear shaft 11 to rotate after receiving the controller signal, pushes the rack component 3 to do linear movement along the axial direction, the rack component 3 drives the canine tooth ring gear 10 to move towards the direction far away from the planetary gear ring 4, the second canine tooth of the planetary gear ring 4 is separated from the first canine tooth of the canine tooth ring gear 10, and the planetary gear ring 4 is in a free rotation state; at the moment, a shaft 9 of the gearbox has power output and can drive the planet carrier 6 to rotate, and because the planet gear ring 4 is in a free rotation state, the planet gear ring 4 also rotates along with the planet carrier 6, but the sun gear shaft 7 is in a static state and can not drive the rotor of the driving motor to rotate, and the whole driving motor can not generate rotating speed and is unpowered.
When the driving motor is required to work, the dog tooth gear ring 10 needs to be meshed, and the specific implementation process is as follows: the gear shaft motor 12 receives a controller signal and starts to drive the gear shaft 11 to rotate, so that the rack member 3 is pushed to linearly move along the axial direction, the rack member 3 drives the canine tooth ring 10 to move towards the direction close to the planetary gear ring 4, the second canine tooth of the planetary gear ring 4 is meshed with the first canine tooth of the canine tooth ring 10, and the planetary gear ring 4 is in a fixed locking state; at the moment, the position sensor 14 sends a signal, the driving motor starts to work, the rotor rotates, so that the sun gear shaft 7 is driven to rotate, at the moment, the sun gear, the planet gear 8, the planet gear ring 4 and the planet carrier 6 form a complete NGW planetary reducer structure, power output is realized, a shaft 9 of the transmission is driven, and the driving requirement of the whole vehicle is met.
The gear box driving mechanism has the advantages of simple structure, compact layout, high reliability, timely switching response and the like.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. A rack and pinion type dog clutch mechanism is characterized by comprising a planet wheel assembly, a dog mechanism, a rack condition and a rack driving assembly;
the planet gear assembly comprises a planet gear ring, a bearing, a planet carrier and a sun gear shaft, the bearing is arranged between the planet gear ring and the planet carrier, a planet gear mounting hole is formed in the planet carrier, a planet gear is mounted in the planet gear mounting hole, the planet carrier is connected with a first shaft of a gear box in a spline fit mode, the first shaft of the gear box and the planet carrier rotate synchronously, and the sun gear shaft is connected with a driving motor;
the dog tooth mechanism comprises a dog tooth gear ring, the dog tooth gear ring is fixedly connected with the rack piece, the rack driving assembly comprises a gear shaft, a gear shaft motor and a conversion driving mechanism, the gear shaft motor is used for driving the gear shaft to rotate, and the gear shaft rotates and drives the gear to move through the conversion driving mechanism, so that the dog tooth gear ring is controlled to be separated from and meshed with the planet gear ring.
2. The rack and pinion type dog clutch mechanism according to claim 1, wherein the dog mechanism further comprises a dog spline shaft, the dog spline shaft is arranged inside the dog gear ring, the dog gear ring is provided with an internal spline, the dog spline shaft is provided with an external spline, and the dog gear ring and the dog spline shaft are in sliding fit through the internal spline and the external spline.
3. The rack and pinion type dog clutch mechanism according to claim 1, wherein the dog gear ring is provided with first dogs having long teeth and short teeth which are sequentially staggered at intervals, and the planet gear ring is provided with second dogs which are engaged with the first dogs.
4. The rack and pinion dog clutch mechanism according to claim 1, wherein the rack member is fixedly connected to the dog gear ring by a fastener.
5. The rack and pinion dog clutch mechanism according to claim 1, further comprising a position sensor for detecting a moving distance of the dog ring gear.
6. The rack and pinion type dog clutch mechanism according to claim 1, wherein said conversion drive mechanism includes a gear and a rack, said gear is provided on said gear shaft, said rack is provided on said rack, said gear is engaged with said rack, rotation of said gear shaft drives rotation of said gear, and said rack is moved in a direction of approaching or separating from said planetary gear ring in an axial direction by said rack.
7. The rack and pinion dog clutch mechanism according to claim 1, wherein said planet ring gear and said carrier are supported by said bearing, and relative movement of said planet ring gear and said carrier is ensured.
8. The rack and pinion dog clutch mechanism according to claim 1, wherein the driving motor includes a rotor support, and the sun gear shaft is connected with the rotor support through spline fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111571096.3A CN114321198A (en) | 2021-12-21 | 2021-12-21 | Gear rack type dog clutch mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111571096.3A CN114321198A (en) | 2021-12-21 | 2021-12-21 | Gear rack type dog clutch mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114321198A true CN114321198A (en) | 2022-04-12 |
Family
ID=81054679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111571096.3A Pending CN114321198A (en) | 2021-12-21 | 2021-12-21 | Gear rack type dog clutch mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114321198A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102573445A (en) * | 2009-09-30 | 2012-07-11 | 法国传动装置公司 | Transmission between an engine input shaft and an output shaft of a motor vehicle |
| US20130226421A1 (en) * | 2010-09-15 | 2013-08-29 | Jtekt Corporation | Four-wheel-drive vehicle and control unit |
| US20130240317A1 (en) * | 2012-03-14 | 2013-09-19 | Aisin Seiki Kabushiki Kaisha | Dog clutch for automated transmission |
| US20130333503A1 (en) * | 2012-06-15 | 2013-12-19 | Brent Peura | Power transfer unit straddle mount ring gear disconnect |
| CN103968065A (en) * | 2013-01-31 | 2014-08-06 | 爱信精机株式会社 | Automatic shift apparatus |
| CN203868251U (en) * | 2014-05-09 | 2014-10-08 | 承田汽车配件工业（浙江）有限公司 | Planetary gear of planetary gear type clutch |
| CN104565101A (en) * | 2013-10-22 | 2015-04-29 | E-Aam传动系统公司 | Actuator with face dog clutch |
| WO2021222940A1 (en) * | 2020-04-30 | 2021-11-04 | Allison Transmission, Inc. | Clutch configurations for a multiple motor mixed-speed continuous power transmission |
| CN216642867U (en) * | 2021-12-21 | 2022-05-31 | 清华大学苏州汽车研究院（吴江） | Gear and rack type dog tooth clutch mechanism |
-
2021
- 2021-12-21 CN CN202111571096.3A patent/CN114321198A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102573445A (en) * | 2009-09-30 | 2012-07-11 | 法国传动装置公司 | Transmission between an engine input shaft and an output shaft of a motor vehicle |
| US20130226421A1 (en) * | 2010-09-15 | 2013-08-29 | Jtekt Corporation | Four-wheel-drive vehicle and control unit |
| US20130240317A1 (en) * | 2012-03-14 | 2013-09-19 | Aisin Seiki Kabushiki Kaisha | Dog clutch for automated transmission |
| US20130333503A1 (en) * | 2012-06-15 | 2013-12-19 | Brent Peura | Power transfer unit straddle mount ring gear disconnect |
| CN103968065A (en) * | 2013-01-31 | 2014-08-06 | 爱信精机株式会社 | Automatic shift apparatus |
| CN104565101A (en) * | 2013-10-22 | 2015-04-29 | E-Aam传动系统公司 | Actuator with face dog clutch |
| CN203868251U (en) * | 2014-05-09 | 2014-10-08 | 承田汽车配件工业（浙江）有限公司 | Planetary gear of planetary gear type clutch |
| WO2021222940A1 (en) * | 2020-04-30 | 2021-11-04 | Allison Transmission, Inc. | Clutch configurations for a multiple motor mixed-speed continuous power transmission |
| CN216642867U (en) * | 2021-12-21 | 2022-05-31 | 清华大学苏州汽车研究院（吴江） | Gear and rack type dog tooth clutch mechanism |
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