CN108468761B - Reversible speed reducer - Google Patents
Reversible speed reducer Download PDFInfo
- Publication number
- CN108468761B CN108468761B CN201810517523.1A CN201810517523A CN108468761B CN 108468761 B CN108468761 B CN 108468761B CN 201810517523 A CN201810517523 A CN 201810517523A CN 108468761 B CN108468761 B CN 108468761B
- Authority
- CN
- China
- Prior art keywords
- driven
- differential
- gear
- shaft
- output shaft
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/14—Gearings for reversal only
- F16H3/145—Gearings for reversal only with a pair of coaxial bevel gears, rotatable in opposite directions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
- F16H55/0806—Involute profile
- F16H55/0813—Intersecting-shaft arrangement of the toothed members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a reversible speed reducer, which comprises a hollow shell, wherein a driving gear, two driven gears, two driven shafts and two driving bevel gears are arranged in the shell, two driven bevel gears, the sleeve, the differential shaft, differential mechanism, drive gear fixes the output shaft tip at the gearbox, drive gear's the left and right sides sets up two driven gear respectively, two driven gear's number of teeth all is greater than drive gear's number of teeth, two driven gear are fixed the front end of adorning at two driven shafts respectively, be equipped with the clutch on every driven shaft, two drive bevel gear are fixed the rear end of adorning at two driven shafts respectively, every driven bevel gear's number of teeth is greater than corresponding drive bevel gear's number of teeth, two driven bevel gear fix on same sleeve, differential mechanism sets up inside the sleeve, the fixed differential shaft that sets up in the inside left end of sleeve, two planet wheel rotation. The invention has the advantages that: the integration of the power transmission system is realized while multiple reverse gears are provided.
Description
Technical Field
The invention relates to the field of power transmission systems of engineering vehicles and off-road vehicles, in particular to a reversible speed reducer.
Background
At present, the reverse gear of most of vehicles is realized through an idler gear in a gearbox, the reverse gear number generally does not exceed two gears, and for certain off-road automobiles and engineering vehicles with special functions, multiple reverse gear positions cannot be realized, and the expected power performance cannot be achieved. And the integration level of the main speed reducer and the differential is not high enough, and the volume of a power transmission system is large, so that the vibration noise is large.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a reversible speed reducer, so that the integration of a power transmission system is realized while multiple reverse gears are provided, and the transmission efficiency is improved.
The invention is realized by the following technical scheme:
the reversible speed reducing device takes an output shaft of a gearbox as a driving shaft, the speed reducing device comprises a hollow shell, a driving gear, two driven gears, two driven shafts, two driving bevel gears, two driven bevel gears, a sleeve, a differential shaft and a differential mechanism are arranged in the shell, the output shaft of the gearbox extends along the front-back direction and extends into the shell, the driving gear is fixed at the end part of the output shaft of the gearbox, the left side and the right side of the driving gear are respectively provided with two driven gears meshed with the driving gear, the number of teeth of the two driven gears is greater than that of the driving gear, the two driven gears are respectively fixedly sleeved at the front ends of the two driven shafts, the axis of each driven shaft extends along the front-back direction, the two driven shafts are arranged in parallel left and right directions, each driven shaft is provided with a clutch, and the two, two driven bevel gears mesh with two drive bevel gears respectively, and the number of teeth of every driven bevel gear is greater than the number of teeth of the drive bevel gear that meshes with it, and the axial lead of drive bevel gear and driven bevel gear is mutually perpendicular, and two driven bevel gears are fixed on same sleeve, differential mechanism sets up inside the sleeve, the inside left end of sleeve is fixed and is set up the differential axle, the axial lead of differential axle is mutually perpendicular with driven bevel gear's axial lead, two planet wheel rotation suits of differential mechanism are in on the differential axle, the left and right output shaft of differential mechanism extends along left and right directions, the left output shaft of differential mechanism stretches out the left end of casing to the left, the right output shaft of differential mechanism stretches out the right-hand member of casing after passing the sleeve center.
Two planet wheels of the differential are respectively sleeved on the differential shaft through a first bearing in a rotating mode.
The sleeve is rotatably sleeved on the right output shaft of the differential through a second bearing.
And the two driven shafts are respectively and rotatably arranged on the bearing support.
An output shaft of the gearbox is rotatably supported on the shell through a third bearing, and a left output shaft and a right output shaft of the differential are rotatably supported on the shell through fourth bearings respectively.
The differential mechanism is arranged at the left section inside the sleeve, and the inner diameter of the left section inside the sleeve is larger than that of the right section.
Compared with the prior art, the invention has the following advantages:
1. the reversible speed reducer provided by the invention adopts the integrated design of the structure of the power transmission system, realizes the high integration of the secondary speed reducer and the differential mechanism, effectively reduces the mass and the volume of the transmission system, greatly reduces the axial size of the transmission system and the total volume of the shell, has a more compact structure, improves the available space of the whole vehicle and reduces the production cost.
2. The reversible speed reducing device provided by the invention is connected with an output shaft of the gearbox, the forward gear and the reverse gear of the vehicle can be switched by changing the combination state of the two clutches, and the forward gear and the reverse gear are the same in number. Through canceling the gearbox idler of backing a gear, reduced gearbox volume and weight and increased the number of the fender that backs simultaneously, provide stronger dynamic nature for the vehicle to deal with various operating modes.
3. The reversible speed reducing device provided by the invention can realize different transmission ratios of the same forward gear and the reverse gear corresponding to the gear number by reasonably adjusting the gear number of the two driven gears, the modulus and the gear number of the two driving bevel gears and the modulus and the gear number of the two driven bevel gears according to different vehicle types and actual requirements, thereby meeting the actual requirements of vehicles.
4. According to the reversible speed reducer, the inner diameter of the left section of the inner part of the sleeve is larger than that of the right section of the inner part of the sleeve, so that the size and the mass of the device are reduced as much as possible, and meanwhile, enough space is provided for the differential mechanism to be arranged in the sleeve, and the high integration of a transmission system is realized.
5. According to the reversible speed reducer provided by the invention, the two clutches are arranged, so that the vehicle starts more stably, and the gear shifting is smoother.
6. According to the reversible speed reducer, the driving gear and the two driven gears are simultaneously meshed to realize primary speed reduction, the two driving bevel gears and the two driven bevel gears are respectively meshed to realize secondary speed reduction, the phenomenon that the number of teeth of a single tooth is too large and the diameter is too large to realize larger speed reduction ratio is avoided compared with a primary speed reducer, and compared with a straight gear secondary speed reducer, due to the fact that the driving bevel gear and the driven bevel gears are added to change the transmission direction, the overall transverse size of the speed reducer can be reduced by reasonably reducing the speed reduction ratio of the driving gear and the driven gears and reasonably increasing the speed reduction ratio of the driving bevel gears and the driven bevel gears, and the structure is.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the sleeve structure of the present invention.
Reference numbers in the figures: 1 a gearbox output shaft; 2, a shell; 3 driving the gear; 4 a first driven gear; 5 a second driven gear; 6 a first driven shaft; 7 a second driven shaft; 8 a first drive bevel gear; 9 a second drive bevel gear; 10 a first driven bevel gear; 11 a second driven bevel gear; 12 a sleeve; 13 differential shafts; 14 a differential; 15 a first clutch; 16 a second clutch; 17 a second bearing; 18 a fourth bearing; 19 a first bearing; 20 a third bearing; 21 left output shaft; 22 right output shaft.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
The embodiment discloses a reversible speed reducer, which takes a gearbox output shaft 1 as a driving shaft, and comprises a hollow shell 2, wherein the shell 2 is internally provided with a driving gear 3, two driven gears, two driven shafts, two driving bevel gears, two driven bevel gears, a sleeve 12, a differential shaft 13 and a differential 14, the two driven gears are respectively a first driven bevel gear 10 and a second driven bevel gear 11, the two driven shafts are respectively a first driven shaft 6 and a second driven shaft 7, the two driving bevel gears are respectively a first driving bevel gear 8 and a second driving bevel gear 9, the two driven bevel gears are respectively a first driven bevel gear 10 and a second driven bevel gear 11, the gearbox output shaft 1 extends along the front-back direction and extends into the shell 2, the driving gear 3 is fixed at the end part of the gearbox output shaft 1, the left side and the right side of the driving gear 3 are respectively provided with two driven gears meshed with the driving gear 3, the number of teeth of the two driven gears is larger than the number of teeth of the driving gear 3, the two driven gears are fixedly sleeved at the front ends of the two driven shafts respectively, the axis of each driven shaft extends along the front-back direction, the two driven shafts are arranged in parallel left and right, a clutch is arranged on each driven shaft and is respectively a first clutch 15 and a second clutch 16, the two driving bevel gears are fixedly sleeved at the rear ends of the two driven shafts respectively, the two driven bevel gears are respectively meshed with the two driving bevel gears, namely the first driven bevel gear 10 is meshed with the first driving bevel gear 8, the second driven bevel gear 11 is meshed with the second driving bevel gear 9, the number of teeth of each driven bevel gear is larger than the number of teeth of the driving bevel gear meshed with the driven bevel gear, the driving bevel gear is vertical to the axis of the driven bevel gears, the two driven bevel gears are fixed on the same sleeve 12, the differential shaft 13 is fixedly arranged at the left end inside the sleeve 12, the axial lead of the differential shaft 13 is perpendicular to the axial lead of the driven bevel gear, two planet wheels of the differential 14 are rotatably sleeved on the differential shaft 13, the left output shaft 22 and the right output shaft 22 of the differential 14 extend in the left-right direction, the left output shaft 21 of the differential 14 extends out of the left end of the shell 2 leftwards, and the right output shaft 22 of the differential 14 extends out of the right end of the shell 2 after penetrating through the center of the sleeve 12.
The two planetary wheels of the differential 14 are rotatably mounted on the differential shaft 13 via first bearings 19. The sleeve 12 is rotatably sleeved on a right output shaft 22 of the differential 14 through a second bearing 17. The two driven shafts are respectively and rotatably arranged on the bearing support. The transmission output shaft 1 is rotatably supported on the housing 2 by a third bearing 20, and the left and right output shafts 22 of the differential 14 are rotatably supported on the housing 2 by fourth bearings 18, respectively. The differential 14 is arranged in the left section inside the sleeve 12, and the inner diameter of the left section inside the sleeve 12 is larger than that of the right section.
The working process of the reversible speed reducer disclosed by the embodiment is as follows:
when the forward gear is engaged: the driving gear 3 is meshed with the first driven gear 4 and the second driven gear 5 simultaneously, the number of teeth of the first driven gear 4 is larger than that of teeth of the driving gear 3, when the output shaft 1 of the gearbox rotates at a certain rotating speed, the rotating speed of the first driven gear 4 is smaller than that of the driving gear 3 according to a gear meshing principle, and primary speed reduction is achieved; at this time, the first clutch 15 is engaged, the second clutch 16 is disengaged, the first drive bevel gear 8 obtains the same rotating speed as the first driven gear 4, the first drive bevel gear 8 is engaged with the first driven bevel gear 10, the number of teeth of the first driven bevel gear 10 is set to be greater than that of the first drive bevel gear 8, and according to the gear engagement principle, the rotating speed is reduced to realize two-stage speed reduction. The sleeve 12 drives the differential shaft 13 to rotate, the differential shaft 13 drives the differential 14 to rotate, and the left output shaft 21 and the right output shaft 22 of the differential 14 rotate to complete power output;
when the reverse gear is engaged: the driving gear 3 is meshed with the first driven gear 4 and the second driven gear 5 simultaneously, the number of teeth of the second driven gear 5 is larger than that of the driving gear 3, when the output shaft 1 of the gearbox rotates at a certain rotating speed, according to the gear meshing principle, the rotating speed of the second driven gear 5 is smaller than that of the driving gear 3, and primary speed reduction is achieved; at this time, the second clutch 16 is engaged, the first clutch 15 is disengaged, the second drive bevel gear 9 obtains the same rotating speed as the second driven gear 5, the second drive bevel gear 9 is engaged with the second driven bevel gear 11, the number of teeth of the second driven bevel gear 11 is set to be greater than that of the second drive bevel gear 9, and according to the gear engagement principle, the rotating speed is reduced to realize two-stage speed reduction. The sleeve 12 drives the differential shaft 13 to rotate, the differential shaft 13 drives the differential 14 to rotate, and the left output shaft 21 and the right output shaft 22 of the differential 14 complete power output.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. Reversible decelerator, the decelerator is with the output shaft of gearbox as the drive shaft, the decelerator includes hollow casing, its characterized in that: the transmission comprises a shell, a transmission shaft, a driving gear, two driven gears, two driven shafts, two driving bevel gears, two driven bevel gears, a sleeve, a differential shaft and a differential mechanism, wherein the output shaft of the transmission extends along the front-back direction and extends into the shell, the driving gear is fixed at the end part of the output shaft of the transmission, the left side and the right side of the driving gear are respectively provided with two driven gears meshed with the driving gear, the number of teeth of the two driven gears is greater than that of the driving gear, the two driven gears are respectively fixedly sleeved at the front ends of the two driven shafts, the axis of each driven shaft extends along the front-back direction, the two driven shafts are arranged in parallel left and right, each driven shaft is provided with a clutch, the two driving bevel gears are respectively fixedly sleeved at the rear ends of the two driven shafts, the two driven bevel gears are respectively meshed with the, the differential mechanism is arranged in the sleeve, a differential shaft is fixedly arranged at the left end in the sleeve, the axial lead of the differential shaft is perpendicular to the axial lead of the driven bevel gear, two planet wheels of the differential mechanism are rotatably sleeved on the differential shaft, the left output shaft and the right output shaft of the differential mechanism extend in the left-right direction, the left output shaft of the differential mechanism extends out of the left end of the shell leftwards, and the right output shaft of the differential mechanism extends out of the right end of the shell after penetrating through the center of the sleeve.
2. A reversible deceleration device according to claim 1, characterized in that: two planet wheels of the differential are respectively sleeved on the differential shaft through a first bearing in a rotating mode.
3. A reversible deceleration device according to claim 1, characterized in that: the sleeve is rotatably sleeved on the right output shaft of the differential through a second bearing.
4. A reversible deceleration device according to claim 1, characterized in that: and the two driven shafts are respectively and rotatably arranged on the bearing support.
5. A reversible deceleration device according to claim 1, characterized in that: an output shaft of the gearbox is rotatably supported on the shell through a third bearing, and a left output shaft and a right output shaft of the differential are rotatably supported on the shell through fourth bearings respectively.
6. A reversible deceleration device according to claim 1, characterized in that: the differential mechanism is arranged at the left section inside the sleeve, and the inner diameter of the left section inside the sleeve is larger than that of the right section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810517523.1A CN108468761B (en) | 2018-05-25 | 2018-05-25 | Reversible speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810517523.1A CN108468761B (en) | 2018-05-25 | 2018-05-25 | Reversible speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108468761A CN108468761A (en) | 2018-08-31 |
| CN108468761B true CN108468761B (en) | 2020-04-14 |
Family
ID=63261356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810517523.1A Active CN108468761B (en) | 2018-05-25 | 2018-05-25 | Reversible speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108468761B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219457A (en) * | 2020-03-07 | 2020-06-02 | 西北工业大学 | Gear transmission device for rapid reversing |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6062360A (en) * | 1998-05-13 | 2000-05-16 | Brunswick Corporation | Synchronizer for a gear shift mechanism for a marine propulsion system |
| CN2522673Y (en) * | 2002-01-28 | 2002-11-27 | 许战争 | Regular tricyle motorcycle transmission mechanism |
| CN202251744U (en) * | 2011-09-28 | 2012-05-30 | 江苏省无锡探矿机械总厂有限公司 | Reverser |
| DE102013012947A1 (en) * | 2013-08-02 | 2015-02-05 | Audi Ag | Powertrain of a motor vehicle |
| CN103791047B (en) * | 2014-02-25 | 2016-02-24 | 合肥工业大学 | A kind of helicopter speed variable transmission system |
| CN106218383A (en) * | 2016-07-21 | 2016-12-14 | 北京新能源汽车股份有限公司 | Automobile and transmission system thereof |
| CN205951715U (en) * | 2016-08-26 | 2017-02-15 | 苏州凯博易控驱动技术有限公司 | Two grades of variable speed systems and be equipped with these two grades variable speed systems car |
| CN207393863U (en) * | 2017-06-27 | 2018-05-22 | 重庆先友科技开发有限公司 | The master that a kind of band reverses gear subtracts assembly |
-
2018
- 2018-05-25 CN CN201810517523.1A patent/CN108468761B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108468761A (en) | 2018-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11780328B2 (en) | Drive device for an electrically driven axle of a motor vehicle | |
| US8562476B2 (en) | Manual transmission using chain and planetary gear set as final drive | |
| CN218777398U (en) | Three-gear electric drive bridge structure | |
| CN115972896B (en) | Multi-gear electric drive bridge transmission system | |
| CN108468761B (en) | Reversible speed reducer | |
| CN213291964U (en) | Two grades of transaxles of bi-motor | |
| CN213291965U (en) | Pure electric vehicles bi-motor drive axle assembly | |
| KR101033858B1 (en) | Gear set for continuously variable transmission | |
| CN211918383U (en) | Longitudinally-arranged two-gear integrated electric drive bridge behind motor | |
| KR20220141450A (en) | Power transmission device for vehicle having electric-axle | |
| CN218777396U (en) | Three-gear electric axle system | |
| JP2015105012A (en) | Drive device of electric vehicle | |
| JP2003291670A5 (en) | ||
| CN217574828U (en) | Two-gear electric drive axle power system with motor placed on single side | |
| CN216545693U (en) | Compact double-motor double-gear electric drive axle system | |
| CN114435106A (en) | Electric drive axle structure for hybrid new energy automobile | |
| CN114962569A (en) | Power train for electric vehicle | |
| JP2012101606A (en) | Vehicle drive device | |
| CN218777399U (en) | Single-motor-driven integrated drive axle system | |
| CN219115245U (en) | Speed reducing bridge | |
| CN219600920U (en) | Motor drive assembly, automobile transmission system and automobile | |
| CN218112337U (en) | Single electromechanical bridge | |
| CN218777400U (en) | Single-motor two-gear electric drive axle structure of central integrated bilateral planet row | |
| CN218761210U (en) | Shaft transmission output mechanism for four-wheel drive | |
| CN215521844U (en) | Mechanical gearbox capable of realizing left-right forward and reverse rotation |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220119 Address after: 230001 floor 6, block B, blue diamond Shangjie, No. 335, Suixi Road, Bozhou road street, Luyang District, Hefei City, Anhui Province Patentee after: Hefei Luyang Technology Innovation Group Co.,Ltd. Address before: Tunxi road in Baohe District of Hefei city of Anhui Province, No. 193 230009 Patentee before: Hefei University of Technology |
|
| TR01 | Transfer of patent right |