CN2821280Y - Full synchronous mechanical speed changer - Google Patents
Full synchronous mechanical speed changer Download PDFInfo
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- CN2821280Y CN2821280Y CN 200520009954 CN200520009954U CN2821280Y CN 2821280 Y CN2821280 Y CN 2821280Y CN 200520009954 CN200520009954 CN 200520009954 CN 200520009954 U CN200520009954 U CN 200520009954U CN 2821280 Y CN2821280 Y CN 2821280Y
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- jack shaft
- shaft
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Abstract
The utility model discloses a full synchronous mechanical speed changer which comprises a box body, an input shaft, two middle shafts, an output shaft, synchronizer components, a gear shift shifting fork, a reverse gear shifting fork, a bearing, a needle bearing and differential components, wherein the input shaft, the two middle shafts and the output shaft are arranged in parallel in the box body. The utility model is characterized in that the box body is composed of a right box body and a right box body, which are connected orderly, the synchronizer components are respectively arranged on the two middle shafts, cause an engaged sleeve with inner teeth to slide through the gear shift shifting fork and consequently respectively realize the synchronous engagement with tooth rings of two gears of the corresponding shafts to realize shifting and power transmission. The reverse gear of the utility model adopts a first-gear driving gear for driving and uses a first-gear driven gear having larger safety allowance to act as a reverse gear idle wheel to enhance the total reliability of the speed changer. The utility model has the advantages of easy manufacturing, convenient installation, compact structure, high 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 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; The many employings of casing divide box structure up and down, processing technology complexity, cleaning inconvenience, and assembly process process is poor.Existing 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 speed changer that cost is low.
The purpose of this utility model is achieved in that a kind of all synchro tool speed changer, comprise: two jack shafts of casing, input shaft, band constant mesh gear, 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 first jack shaft, and between the one grade of driven gear and second gear driven gear on first jack shaft, with one, second gear reverse shift fork control connection; Three, the fourth gear synchronizer is arranged on described first jack shaft, and between the third gear driven gear and fourth gear driven gear on first jack shaft, 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.
Above-mentioned 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, third gear driven gear, fourth gear the driven gear needle bearing by separately respectively are placed on described first jack shaft, respectively with described input shaft on one grade of driving gear, second gear driving gear, third speed drive gear, the engagement of fourth gear driving gear; Described five grades of driven gears, the reverse gear needle bearing by separately respectively are placed on described second jack shaft, described reverse gear and one grade of driven gear engagement; Be positioned on described first jack shaft on described one grade of driven gear right side the first differential driving gear is arranged, being positioned on described second jack shaft on described reverse gear right side has the second differential driving gear, and these two differential driving gears often mesh 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 one grade of driving gear to drive, the one grade driven gear bigger by safety allowance serves as reverse idler gear, saved the demanding reverse idler gear of accuracy of manufacturing, reduced manufacture cost effectively, simultaneously, overcome the two-sided stand under load of existing speed variator reverse gear idle pulley, strength deficiency, the defective of bearing capacity difference, reverse gear vibrations and noise performance have been improved greatly, it is more reasonable that each grade of speed changer strength of gear teeth is distributed, improved the overall reliability of speed changer, avoided unnecessary roll flute simultaneously, strengthened shot peening technology, 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 speed changer, comprise: two jack shafts 2,3 of casing, input shaft 1, band constant mesh gear, output shaft 4, three synchronizer assemblies 5,6,7, reverse shift fork, reverse speed fork, bearing, needle bearing, differential assembly 22, 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 32, right case 31; One, second gear synchronizer 5 is arranged on described first jack shaft 2, and between the one grade of driven gear 9 and second gear driven gear 11 on first jack shaft 2, with one, second gear reverse shift fork control connection; Three, fourth gear synchronizer 6 is arranged on described first jack shaft 2, and between the third gear driven gear 13 and fourth gear driven gear 15 on first jack shaft 2, with three, fourth gear reverse shift fork control connection; Five reverse gear synchronizers 7 are arranged on described second jack shaft 3, and between the five grades of driven gears 17 and reverse gear 18 on second jack shaft 3, with five reverse gear reverse shift fork control connections.
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, adjacent with described synchronizer assembly 5,6,7 gear 9,11,13,15,17,18 1 ends all have the synchromesh gear ring.
Above-mentioned input shaft 1 is installed on the described left and right casing 32,31 by input shaft right bearing 23, input shaft left bearing 4, described first jack shaft 2 is installed on the described left and right casing 32,31 by the first jack shaft right bearing 25, the first jack shaft left bearing 26, described second jack shaft 3 is installed on the described left and right casing 32,31 by the second jack shaft right bearing 27, the second jack shaft left bearing 28, and described differential assembly 22, output shaft 4 are installed on the described left and right casing 32,31 by differential mechanism right bearing 29, differential left bearing 30; Described one grade of driven gear 9, second gear driven gear 11, third gear driven gear 13, fourth gear driven gear 15 are placed on described first jack shaft 2 by needle bearing respectively, respectively with described input shaft 1 on 14 engagements of one grade of driving gear 8, second gear driving gear 10, third speed drive gear 12, fourth gear driving gear; Described five grades of driven gears 17, reverse gear 18 are placed on described second jack shaft 3 by needle bearing respectively, described reverse gear 18 and one grade of driven gear 9 engagement; Be positioned on described first jack shaft 2 on described one grade of driven gear 9 right side the first differential driving gear 19 is arranged, being positioned on described second jack shaft 3 on described reverse gear 18 right sides has the second differential driving gear 20, and these two differential driving gears 20 often mesh with the differential driven gear 21 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, three, four and five grade is the secondary transmission, and reverse gear is driven by one grade of driving gear, and one grade of driven gear serves as idle pulley, and concrete gear is achieved in that
In the time of one grade: one, the second gear reverse shift fork makes one, the engagement of the band internal tooth of second gear synchronizer 5 cover slides to the right engages synchronously with the synchromesh gear ring realization 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 by one, second gear synchronizer 5 passes to first jack shaft 2 with power, pass to differential side gear 21, differential assembly 22 by the differential mechanism driving gear 19 on it again, reach the purpose of one grade of rotating speed of output at last by output shaft 4 outputs.
During second gear: one, the second gear reverse shift fork makes one, the engagement of the band internal tooth of second gear synchronizer 5 cover slides left engages synchronously with the synchromesh gear ring realization 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 by one, second gear synchronizer 5 passes to first jack shaft 2 with power, pass to differential side gear 21, differential assembly 22 by the differential mechanism driving gear 19 on it again, reach the purpose of output second gear rotating speed at last by output shaft 4 outputs.
During third gear: three, the fourth gear reverse shift fork makes three, the engagement of the band internal tooth of fourth gear synchronizer 6 cover slides to the right engages synchronously with the synchromesh gear ring realization of third gear driven gear 13, by three, fourth gear synchronizer 6, power is passed to first jack shaft 2 with the third gear driven gear 13 on first jack shafts 2 of third speed drive gear 12 normal engagements, pass to differential side gear 21, differential assembly 22 by the differential mechanism driving gear 19 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 6 cover slides left engages synchronously with the synchromesh gear ring realization of fourth gear driven gear 15, by three, fourth gear synchronizer 6, power is passed to first jack shaft 2 with the fourth gear driven gear 15 on first jack shafts 2 of fourth gear driving gear 14 normal engagements, pass to differential side gear 21, differential assembly 22 by the differential mechanism driving gear 19 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 7 left and realize engaging synchronously with the synchromesh gear ring of five grades of driven gears 17, power is by passing to five grades of driven gears 17 with five grades of driving gears 16 of five grades of driven gears, 17 normal engagements on the input shaft 1, five grades of driven gears 17 are passed to second jack shaft 3 by five reverse gear synchronizers 7 with power, pass to differential side gear 21, differential assembly 22 by the differential mechanism driving gear 20 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 7 to the right and realize engaging synchronously with the synchromesh gear ring of reverse gear 18, 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 passed to the reverse gear 18 of normal engagement with it with power, pass to second jack shaft 3 by five reverse gear synchronizers 7 then, pass to differential side gear 21 by the differential mechanism driving gear 20 on it again, differential assembly 22 reaches the purpose of exporting the reverse gear rotating speed by output shaft 4 outputs at last.
Claims (4)
1, a kind of all synchro tool speed changer, comprise: two jack shafts (2,3), output shaft (4), three synchronizer assemblies (5,6,7), reverse shift fork, reverse speed fork, bearing, needle bearing, the differential assembly (22) 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 (32), right case (31); One, second gear synchronizer (5) is arranged on described first jack shaft (2), and is positioned between the one grade of driven gear (9) and second gear driven gear (11) on first jack shaft (2), with one, second gear reverse shift fork control connection; Three, fourth gear synchronizer (6) is arranged on described first jack shaft (2), and is positioned between the third gear driven gear (13) and fourth gear driven gear (15) on first jack shaft (2), with three, fourth gear reverse shift fork control connection; Five reverse gear synchronizers (7) are arranged on described second jack shaft (3), and are positioned between the five grades of driven gears (17) and reverse gear (18) on second jack shaft (3), with five reverse gear reverse shift fork control connections.
2, all synchro tool 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.
3, all synchro tool speed changer as claimed in claim 1 is characterized in that: gear (9,11,13,15,17, a 18) end adjacent with described synchronizer assembly (5,6,7) all has the synchromesh gear ring.
4, as claim 1,2 or 3 described all synchro tool speed changers, it is characterized in that: described input shaft (1) is by input shaft right bearing (23), input shaft left bearing (24) is installed on a described left side, right case (32,31) on, described first jack shaft (2) is by the first jack shaft right bearing (25), the first jack shaft left bearing (26) is installed on a described left side, right case (32,31) on, described second jack shaft (3) is by the second jack shaft right bearing (27), the second jack shaft left bearing (28) is installed on a described left side, right case (32,31) on, described differential assembly (22), output shaft (4) is by differential mechanism right bearing (29), differential left bearing (30) is installed on a described left side, right case (32,31) on; Described one grade of driven gear (9), second gear driven gear (11), third gear driven gear (13), fourth gear driven gear (15) are placed on described first jack shaft (2) by needle bearing respectively, respectively with described input shaft (1) on one grade of driving gear (8), second gear driving gear (10), third speed drive gear (12), fourth gear driving gear (14) engagement; Described five grades of driven gears (17), reverse gear (18) are placed on described second jack shaft (3) by needle bearing respectively, described reverse gear (18) and one grade of driven gear (9) engagement; Be positioned on described first jack shaft (2) on described one grade of driven gear (9) right side the first differential driving gear (19) is arranged, being positioned on described second jack shaft (3) on described reverse gear (18) right side has the second differential driving gear (20), this this two differential mechanism driving gears (19,20) and the normal engagement of differential driven gear (21) that is arranged on the described output shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009954 CN2821280Y (en) | 2005-09-14 | 2005-09-14 | Full synchronous mechanical speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009954 CN2821280Y (en) | 2005-09-14 | 2005-09-14 | Full synchronous mechanical speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821280Y true CN2821280Y (en) | 2006-09-27 |
Family
ID=37017834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520009954 Expired - Lifetime CN2821280Y (en) | 2005-09-14 | 2005-09-14 | Full synchronous mechanical speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821280Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644260A (en) * | 2013-12-05 | 2014-03-19 | 重庆钟华机械有限责任公司 | Transmission assembly of fuel tricycle |
-
2005
- 2005-09-14 CN CN 200520009954 patent/CN2821280Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644260A (en) * | 2013-12-05 | 2014-03-19 | 重庆钟华机械有限责任公司 | Transmission assembly of fuel tricycle |
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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, walled hill 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 |