CN2821279Y - Full synchronous mechanical speed changer - Google Patents
Full synchronous mechanical speed changer Download PDFInfo
- Publication number
- CN2821279Y CN2821279Y CN 200520009952 CN200520009952U CN2821279Y CN 2821279 Y CN2821279 Y CN 2821279Y CN 200520009952 CN200520009952 CN 200520009952 CN 200520009952 U CN200520009952 U CN 200520009952U CN 2821279 Y CN2821279 Y CN 2821279Y
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- gear
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- jack shaft
- reverse
- bearing
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- Expired - Lifetime
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Abstract
The utility model discloses a full synchronous mechanical speed changer which comprises a box body, an input shaft, two intermediate shafts, an output shaft, synchronizer components, a shifting fork for gear shift, a shifting fork for back action, a bearing, a needle bearing and differential mechanism components, wherein the input shaft, two intermediate shafts and the output shafts are arranged in parallel in the box body. The utility model is characterized in that the box body is composed of a left box body and a right box body, which are connected orderly, and the synchronizer components are respectively arranged on the two intermediate shafts, cause an engaging sleeve with internal teeth to slide through the a shifting fork for gear shift thereby, respectively realize the synchronous engagement the gear rings of two gears of the corresponding shaft to realize gear shift and power transmission. The back action of the utility model adopts a second-gear driving gear to drive, the second gear driving gear having larger safety allowance is used as an input gear for back action, so the defect of insufficient strength of a first-gear is greatly improved, and the total reliability of the speed changer is enhanced. The utility model has the advantages of easy manufacturing, convenient installation, compact structure, high transmission efficiency and strong adapting performance.
Description
Technical field
The utility model relates to a kind of automobile mechanical transmission, particularly a kind of all synchro tool formula speed changer.
Background technique
At present, traditional car is longer with the axial dimension of all synchro tool speed changer, is difficult to arrange in car load, and has shortcomings such as volume is big, complex structure, processing technology complexity, inconvenient maintenance, cost height.Full synchrom esh transmission commonly used comprises casing, input shaft, jack shaft, output shaft, reverse idler gear, reverse gear, differential assembly, several gear pairs, synchronizer assembly, reverse shift fork and release bearing operating mechanism, wherein, input shaft is the power input, the gear that can pivot is arranged on the axle, the gear that can pivot is accordingly arranged on the jack shaft, and output shaft is power output; Casing adopts integrated type more and divides box structure up and down, processing technology complexity, cleaning inconvenience, and assembly process process is poor.Existing similar automotive transmission is when reverse gear is worked, one grade of driving gear, reverse idler gear and reverse gear transferring power of intermeshing, the two-sided stand under load of idle pulley, the intensity of reverse idler gear is generally not enough, therefore its intensity, bearing capacity are all very poor, vibration during the reverse gear transmission and noise are also bigger, and three tooth engagement driving are not steady, and transmission error is big; Simultaneously, because the speed ratio of one grade of driving gear is big, true stress is also big, and it goes back double as reverse gear input gear, so the intensity variation, and is therefore very high to manufacture process requirement, often needs special process such as roll flute, strengthened shot peening, and cost is higher; In addition, since life-span of automotive transmission mainly be subject to one grade of gear pair and reverse gear pair, and the raising that relatively poor one grade of gear of intensity and reverse gear will restrict the speed changer life-span.
Summary of the invention
The purpose of this utility model is to provide a kind of compact structure, stable drive, easy to manufacture, all synchro tool formula speed changer that cost is low.
The purpose of this utility model is achieved in that a kind of all synchro tool formula speed changer, comprise: first jack shaft of casing, input shaft, band constant mesh gear, second jack shaft, output shaft, three synchronizer assemblies, reverse shift fork, reverse speed fork, bearing, needle bearing, differential assembly, described input shaft, two jack shafts, output shaft are set in parallel in the described casing, it is characterized in that: described casing is made up of left box body, right case, and is linked in sequence; One, the second gear synchronizer is arranged on described second jack shaft, and between the one grade of driven gear and second gear driven gear on second jack shaft, with one, second gear reverse shift fork control connection; Three, the fourth gear synchronizer is arranged on the described input shaft, and between third speed drive gear on the input shaft and fourth gear driving gear, with three, fourth gear reverse shift fork control connection; Five reverse gear synchronizers are arranged on described second jack shaft, and between the five grades of driven gears and reverse gear on second jack shaft, with five reverse gear reverse shift fork control connections.
The left side of above-mentioned second gear driven gear is provided with a reverse idler gear, this reverse idler gear and the described second gear driven gear composition duplicate gear that is connected as a single entity.
Last synchronizer assembly is made up of engagement cover, slide block, the spring along the slip of tooth hub external tooth of the band internal tooth of circular groove by the tooth hub that has external tooth, outer ring.
Gear one end that the utility model is adjacent with described synchronizer assembly all has the synchromesh gear ring.
Above-mentioned input shaft is installed on the described left and right casing by input shaft right bearing, input shaft left bearing, described first jack shaft is installed on the described left and right casing by the first jack shaft right bearing, the first jack shaft left bearing, described second jack shaft is installed on the described left and right casing by the second jack shaft right bearing, the second jack shaft left bearing, and described differential assembly, output shaft pass through differential mechanism right bearing, differential left Bearing Installation on described left and right casing; Described one grade of driven gear, second gear driven gear, reverse idler gear are placed on described second jack shaft by needle bearing respectively, respectively with described input shaft on the engagement of one grade of driving gear, second gear driving gear; Described five grades of driven gears, reverse gear are placed on described first jack shaft by needle bearing respectively, five grades of driving gear engagements on described five grades of driven gears and the input shaft; Described third speed drive gear, fourth gear driving gear are placed on the described input shaft by needle bearing respectively, and respectively with described first jack shaft on the engagement of third gear driven gear, fourth gear driven gear, described fourth gear driving gear also with described second jack shaft on the input gear engagement; The described first jack shaft upper spline that is positioned at described five grades of driven gear right sides is connected with the differential driving gear, and this differential driving gear often meshes with the differential driven gear that is arranged on the described output shaft.
The utility model is owing to be divided into left and right sides two-part with casing and be linked in sequence, easy processing not only, and also easy for installation; The utility model is because the layout that adopts a power input shaft, two jack shafts, a pto and be parallel to each other, thereby the general structure compactness, assembly space is little, suitability is strong; Reverse gear of the present utility model adopts the second gear driving gear to drive, and serves as reverse gear input gear by the bigger second gear driving gear of safety allowance, has significantly improved one grade of strength of gear teeth defect of insufficient, and it is more reasonable that each strength of gear teeth of speed changer is distributed; Reverse idler gear of the present utility model is formed duplicate gear with the second gear driven gear, increased substantially the intensity of idle pulley, overcome the defective of the two-sided stand under load of existing speed variator reverse gear idle pulley, strength deficiency, bearing capacity difference, reverse gear vibrations and noise performance have been improved greatly, improved the overall reliability of speed changer, avoided unnecessary roll flute, strengthened shot peening technology simultaneously, cost is reduced and performance is more stable, is more suitable for requirement of mass production.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Embodiment
Referring to Fig. 1, a kind of all synchro tool of the utility model formula speed changer, comprise: first jack shaft 2 of casing, input shaft 1, band constant mesh gear, second jack shaft 3, output shaft 4, three synchronizer assemblies 5,6,7, reverse shift fork, reverse speed fork, bearing, needle bearing, differential assembly 23, described input shaft 1, two jack shafts 2,3, output shaft 4 are set in parallel in the described casing, it is characterized in that: described casing is formed, and is linked in sequence by left box body 33, right case 32; One, second gear synchronizer 5 is arranged on described second jack shaft 3, and between the one grade of driven gear 9 and second gear driven gear 11 on second jack shaft 3, with one, second gear reverse shift fork control connection; Three, fourth gear synchronizer 7 is arranged on the described input shaft 1, and between third speed drive gear on the input shaft 1 13 and fourth gear driving gear 15, with three, fourth gear reverse shift fork control connection; Five reverse gear synchronizers 6 are arranged on described second jack shaft 3, and between the five grades of driven gears 18 and reverse gear 20 on the second two jack shafts 3, with five reverse gear reverse shift fork control connections.
The left side of above-mentioned second gear driven gear 11 is provided with a reverse idler gear 19, this reverse idler gear 19 and the described second gear driven gear 11 composition duplicate gear that is connected as a single entity.
Above-mentioned synchronizer assembly 5,6,7 is made up of engagement cover, slide block, the spring along the slip of tooth hub external tooth of the band internal tooth of circular groove by the tooth hub that has external tooth, outer ring.
In this example, gear 9,11,13,15,18,20 one ends adjacent with described synchronizer assembly 5,6,7 all have the synchromesh gear ring.
Above-mentioned input shaft 1 is installed on the described left and right casing 33,32 by input shaft right bearing 24, input shaft left bearing 25, described first jack shaft 2 is installed on the described left and right casing 33,32 by the first jack shaft right bearing 26, the first jack shaft left bearing 27, described second jack shaft 3 is installed on the described left and right casing 33,32 by the second jack shaft right bearing 28, the second jack shaft left bearing 29, and described differential assembly 23, output shaft 4 are installed on the described left and right casing 33,32 by differential mechanism right bearing 30, differential left bearing 31; Described one grade of driven gear 9, second gear driven gear 11, reverse idler gear 19 are placed on described second jack shaft 3 by needle bearing respectively, respectively with described input shaft 1 on 10 engagements of one grade of driving gear 8, second gear driving gear; Described five grades of driven gears 18, reverse gear 20 are placed on described first jack shaft 2 by needle bearing respectively, five grades of driving gears, 17 engagements on described five grades of driven gears 18 and the input shaft 1; Described third speed drive gear 13, fourth gear driving gear 15 are placed on the described input shaft 1 by needle bearing respectively, and respectively with described first jack shaft 2 on 16 engagements of third gear driven gear 14, fourth gear driven gear, described fourth gear driving gear 15 also with described second jack shaft 3 on 12 engagements of input gear; Described first jack shaft, 2 upper splines that are positioned at described five grades of driven gear 18 right sides are connected with differential driving gear 21, and this differential driving gear 21 often meshes with the differential driven gear 22 that is arranged on the described output shaft 4.
The utility model embodiment comprises five forward gearss and a reverse gear, and wherein one, two second gears are the level Four transmission, and three, four and five grades is the secondary transmission, and reverse gear is driven by the second gear driving gear, and reverse idler gear is formed duplicate gear with the second gear driven gear.Concrete gear is achieved in that
In the time of one grade: one, the second gear reverse shift fork makes one, the engagement cover of the band internal tooth of second gear synchronizer 5 slides to the right and realizes engaging synchronously with the synchromesh gear ring of one grade of driven gear 9, power is by passing to one grade of driven gear 9 with one grade of driving gear 8 of one grade of driven gear, 9 normal engagements on the input shaft 1, one grade of driven gear 9 is by one, second gear synchronizer 5 is passed to second jack shaft 3 with power, pass to the fourth gear driving gear 15 of normal engagement with it by the input gear 12 on it again, again by power being passed to first jack shaft 2 with the fourth gear driven gear 16 of fourth gear driving gear 15 normal engagements, pass to differential side gear 22 by the differential mechanism driving gear 21 on first jack shaft 2 then, differential assembly 23 reaches the purpose of exporting one grade of rotating speed by output shaft 4 outputs at last.
During second gear: one, the second gear reverse shift fork makes one, the engagement cover of the band internal tooth of second gear synchronizer 5 slides left and realizes engaging synchronously with the synchromesh gear ring of second gear driven gear 11, power is by passing to second gear driven gear 11 with the second gear driving gear 10 of second gear driven gear 11 normal engagements on the input shaft 1, second gear driven gear 11 is by one, second gear synchronizer 5 is passed to second jack shaft 3 with power, pass to the fourth gear driving gear 15 of normal engagement with it by the input gear 12 on it again, again by power being passed to first jack shaft 2 with the fourth gear driven gear 16 of fourth gear driving gear 15 normal engagements, pass to differential side gear 22 by the differential mechanism driving gear 21 on first jack shaft 2 then, differential assembly 23 reaches the purpose of exporting the second gear rotating speed by output shaft 4 outputs at last.
During third gear: three, the fourth gear reverse shift fork makes three, the engagement of the band internal tooth of fourth gear synchronizer 7 cover slides to the right engages synchronously with the synchromesh gear ring realization of third speed drive gear 13, by three, fourth gear synchronizer 7, power is passed to first jack shaft 2 with the third gear driven gear 14 on first jack shafts 2 of third speed drive gear 13 normal engagements, pass to differential side gear 22, differential assembly 23 by the differential mechanism driving gear 21 on first jack shaft 2, reach the purpose of output third gear rotating speed at last by output shaft 4 outputs.
During fourth gear: three, the fourth gear reverse shift fork makes three, the engagement of the band internal tooth of fourth gear synchronizer 7 cover slides left engages synchronously with the synchromesh gear ring realization of fourth gear driving gear 15, by three, fourth gear synchronizer 7, power is passed to first jack shaft 2 with the fourth gear driven gear 16 on first jack shafts 2 of fourth gear driving gear 15 normal engagements, pass to differential side gear 22, differential assembly 23 by the differential mechanism driving gear 21 on first jack shaft 2, reach the purpose of output fourth gear rotating speed at last by output shaft 4 outputs.
In the time of five grades: five reverse gear reverse shift forks slide the engagement cover of the band internal tooth of five reverse gear synchronizers 6 to the right and realize engaging synchronously with the synchromesh gear ring of five grades of driven gears 18, power is by passing to five grades of driven gears 18 with five grades of driving gears 17 of five grades of driven gears, 18 normal engagements on the input shaft 1, five grades of driven gears 18 are passed to first jack shaft 2 by five reverse gear synchronizers 7 with power, pass to differential side gear 22, differential assembly 23 by the differential mechanism driving gear 21 on it again, reach the purpose of five grades of rotating speeds of output at last by output shaft 4 outputs.
During reverse gear: five reverse gear reverse shift forks slide the engagement cover of the band internal tooth of five reverse gear synchronizers 6 left and realize engaging synchronously with the synchromesh gear ring of reverse gear 20, power is by passing to second gear driven gear 11 with the second gear driving gear 10 of second gear driven gear 11 normal engagements on the input shaft 1, pass to reverse gear 20 by reverse idler gear on the duplicate gear 19 again, reverse gear 20 is passed to first jack shaft 2 by five reverse gear synchronizers 7 with power, pass to differential side gear 22 by the differential mechanism driving gear 21 on it again, differential assembly 23 reaches the purpose of exporting the reverse gear rotating speed by output shaft 4 outputs at last.
Claims (5)
1, a kind of all synchro tool formula speed changer, comprise: first jack shaft (2), second jack shaft (3), output shaft (4), three synchronizer assemblies (5,6,7), reverse shift fork, reverse speed fork, bearing, needle bearing, the differential assembly (23) of casing, input shaft (1), band constant mesh gear, described input shaft (1), two jack shafts (2,3), output shaft (4) are set in parallel in the described casing, it is characterized in that: described casing is formed, and is linked in sequence by left box body (33), right case (32); One, second gear synchronizer (5) is arranged on described second jack shaft (3), and is positioned between the one grade of driven gear (9) and second gear driven gear (11) on second jack shaft (3), with one, second gear reverse shift fork control connection; Three, fourth gear synchronizer (7) is arranged on the described input shaft (1), and is positioned between the third speed drive gear (13) and fourth gear driving gear (15) on the input shaft (1), with three, fourth gear reverse shift fork control connection; Five reverse gear synchronizers (6) are arranged on described second jack shaft (3), and are positioned between the five grades of driven gears (18) and reverse gear (20) on second jack shaft (3), with five reverse gear reverse shift fork control connections.
2, all synchro tool formula speed changer as claimed in claim 1, it is characterized in that: the left side of described second gear driven gear (11) is provided with a reverse idler gear (19), this reverse idler gear (19) and described second gear driven gear (11) the composition duplicate gear that is connected as a single entity.
3, all synchro tool formula speed changer as claimed in claim 1 is characterized in that: described synchronizer assembly (5,6,7) is made up of engagement cover, slide block, the spring along the slip of tooth hub external tooth of the band internal tooth of circular groove by the tooth hub that has external tooth, outer ring.
4, all synchro tool formula speed changer as claimed in claim 1 is characterized in that: gear (9,11,13,15,18, a 20) end adjacent with described synchronizer assembly (5,6,7) all has the synchromesh gear ring.
5, as claim 1,2,3 or 4 described all synchro tool formula speed changers, it is characterized in that: described input shaft (1) is by input shaft right bearing (24), input shaft left bearing (25) is installed on a described left side, right case (33,32) on, described first jack shaft (2) is by the first jack shaft right bearing (26), the first jack shaft left bearing (27) is installed on a described left side, right case (33,32) on, described second jack shaft (3) is by the second jack shaft right bearing (28), the second jack shaft left bearing (29) is installed on a described left side, right case (33,32) on, described differential assembly (23), output shaft (4) is by differential mechanism right bearing (30), differential left bearing (31) is installed on a described left side, right case (33,32) on; Described one grade of driven gear (9), second gear driven gear (11), reverse idler gear (19) are placed on described second jack shaft (3) by needle bearing respectively, respectively with described input shaft (1) on the normal engagement of one grade of driving gear (8), second gear driving gear (10); Described five grades of driven gears (18), reverse gear (20) are placed on described first jack shaft (2) by needle bearing respectively, described five grades of driven gears (18) and the normal engagement of the five grades of driving gears (17) on the input shaft (1); Described third speed drive gear (13), fourth gear driving gear (15) are placed on the described input shaft (1) by needle bearing respectively, and respectively with described first jack shaft (2) on the engagement of third gear driven gear (14), fourth gear driven gear (16), described fourth gear driving gear (15) also with described second jack shaft (3) on input gear (12) engagement; Described first jack shaft (2) upper spline that is positioned at described five grades of driven gears (18) right side is connected with differential driving gear (21), this differential driving gear (21) and the normal engagement of differential driven gear (22) that is arranged on the described output shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009952 CN2821279Y (en) | 2005-09-14 | 2005-09-14 | Full synchronous mechanical speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009952 CN2821279Y (en) | 2005-09-14 | 2005-09-14 | Full synchronous mechanical speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821279Y true CN2821279Y (en) | 2006-09-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520009952 Expired - Lifetime CN2821279Y (en) | 2005-09-14 | 2005-09-14 | Full synchronous mechanical speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821279Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354076A (en) * | 2007-07-23 | 2009-01-28 | Jcb转播公司 | Vehicle transmission |
| CN102192283A (en) * | 2010-03-05 | 2011-09-21 | 通用汽车环球科技运作有限责任公司 | Transmission for a car |
| CN102734459A (en) * | 2011-04-07 | 2012-10-17 | 长江大学 | Sliding table cylinder type multi-position fork shifting device |
| CN103671756A (en) * | 2012-09-12 | 2014-03-26 | 通用汽车环球科技运作有限责任公司 | Multi-speed transmission |
| CN105283690A (en) * | 2013-05-01 | 2016-01-27 | 捷豹路虎有限公司 | Transmission |
| CN111098648A (en) * | 2020-01-09 | 2020-05-05 | 大连浦州航空科技有限公司 | High-speed amphibious vehicle transmission system with double water-jet propellers |
-
2005
- 2005-09-14 CN CN 200520009952 patent/CN2821279Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354076A (en) * | 2007-07-23 | 2009-01-28 | Jcb转播公司 | Vehicle transmission |
| CN101354076B (en) * | 2007-07-23 | 2013-08-07 | Jcb转播公司 | Vehicle transmission |
| CN102192283A (en) * | 2010-03-05 | 2011-09-21 | 通用汽车环球科技运作有限责任公司 | Transmission for a car |
| CN102192283B (en) * | 2010-03-05 | 2016-08-03 | 通用汽车环球科技运作有限责任公司 | Transmission for a vehicle |
| CN102734459A (en) * | 2011-04-07 | 2012-10-17 | 长江大学 | Sliding table cylinder type multi-position fork shifting device |
| CN103671756A (en) * | 2012-09-12 | 2014-03-26 | 通用汽车环球科技运作有限责任公司 | Multi-speed transmission |
| CN103671756B (en) * | 2012-09-12 | 2016-08-17 | 通用汽车环球科技运作有限责任公司 | Multiple-speed gear-box |
| CN105283690A (en) * | 2013-05-01 | 2016-01-27 | 捷豹路虎有限公司 | Transmission |
| CN105283690B (en) * | 2013-05-01 | 2018-01-23 | 捷豹路虎有限公司 | Speed changer |
| US10054196B2 (en) | 2013-05-01 | 2018-08-21 | Jaguar Land Rover Limited | Transmission |
| CN111098648A (en) * | 2020-01-09 | 2020-05-05 | 大连浦州航空科技有限公司 | High-speed amphibious vehicle transmission system with double water-jet propellers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA SOUTHERN INDUSTRIAL AUTOMOTIVE COMPANY Free format text: FORMER OWNER: QINGSHAN IND CO LTD, CHONGQING Effective date: 20061208 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20061208 Address after: Beijing City, Haidian District Zizhuyuan Road 100089 Lane West Ditch Building No. 10 hospital - 4 Patentee after: China Southern Industrial automobile Limited by Share Ltd Address before: 402761 651 mailbox, green bar town, Bishan County, Chongqing Patentee before: Qingshan Industry Co., Ltd., Chongqing |
|
| CX01 | Expiry of patent term |
Granted publication date: 20060927 |
|
| EXPY | Termination of patent right or utility model |