CN101504057B - Mechanical synchronous transmission - Google Patents
Mechanical synchronous transmission Download PDFInfo
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- CN101504057B CN101504057B CN 200910119830 CN200910119830A CN101504057B CN 101504057 B CN101504057 B CN 101504057B CN 200910119830 CN200910119830 CN 200910119830 CN 200910119830 A CN200910119830 A CN 200910119830A CN 101504057 B CN101504057 B CN 101504057B
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Abstract
The invention discloses a mechanical synchronous transmission, which mainly comprises a box body, an input shaft, an output shaft, a middle shaft, a gear pair, a synchronizer and a release bearing operating mechanism. The gear pair comprises a first-shift gear pair, a second-shift gear pair, a third-shift gear pair, a fourth-shift gear pair, a fifth-shift gear pair, a reverse gear pair and a box body; and the middle shaft and the output shaft are additionally provided with sixth-shift gear pairs. The mechanical synchronous transmission increases the sixth-shift gears with less transmission ratio; the transmission is matched with an engine to reduce the oil consumption of an integral vehicle so that the integral vehicle achieves the requirements of national discharge and oil consumption; and the mechanical synchronous transmission has reasonable transmission ratio, enough strength and reliability, and higher transmission efficiency and gear shifting comfort, and becomes the development tendency of future manual transmissions.
Description
Technical field
The present invention relates to automotive transmission, exactly is mechanical synchronous transmission.
Background technique
Automotive transmission is the parts that change engine speed and moment of torsion according to the different driving conditions of automobile, can make automobile have suitable tractive force, acceleration and realization reversing, makes motor remain on work under the best work condition environment simultaneously.Along with the more enforcement of strict fuel economy regulation of country; Having proposed speed changer cooperates motor, car load to reduce the requirement of oil consumption together; Engine cruising speed is further reduced; The scope of transmission ratio is bigger, and all there is the not good shortcoming of fuel economy in Light-duty Vehicle widely used five (5+R) gear gearbox (like Fig. 1, shown in 2) at present.
Summary of the invention
To the deficiency that existing five (5+R) gear gearbox exists, the present invention aims to provide a kind of six (6+R) shelves mechanical synchronous transmission.
The technological scheme that the present invention adopts is:
A kind of mechanical synchronous transmission; Mainly constitute by casing, input shaft, output shaft, jack shaft, gear pair, synchronizer, release bearing and operating mechanism; Wherein gear pair comprises one grade of gear pair, intermediate gear is secondary, three-range transmission is secondary, constant mesh gear is secondary, five grades of gear pairs, reverse gear pair and casings, and increasing on said jack shaft or the output shaft has six grades of synchronizers and gear pair.
The six step tooth wheel set of said increase is between five grades of gear pairs and reverse gear pair.
The secondary independent synchronizer of said reverse gear.
Said five, the shared synchronizer of six step tooth wheel set.
Synchronizer said five, the six step tooth wheel set is arranged on the output shaft.
Synchronizer said five, the six step tooth wheel set is arranged on the jack shaft.
The secondary selector fork axis hole of said reverse gear only is designed with advancing slip space.
The present invention improves Economy for not reducing power character, makes the speed changer fastest ratio become littler; So increase six grades of close steps more, cooperate motor to reducing the oil consumption of car load through speed changer, make car load reach the requirement of country's discharging and oil consumption; Have rational velocity ratio, enough intensity, reliability; Also have higher transmission efficiency and shifting comfort, former speed changer component are had good inheritance, will become the development trend of following manual transmission.
Description of drawings
Fig. 1 is the structural representation of existing five (5+R) gear gearbox;
Fig. 2 is the secondary selector fork axis hole structural drawing of existing reverse gear;
Fig. 3 is the structural representation of first embodiment of the invention;
Fig. 4 is the structural representation of second embodiment of the invention;
Fig. 5 is the secondary selector fork axis hole structural drawing of reverse gear of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is done further detailed explanation.
Description of reference numerals is following:
1---one grade of gear 2 of output shaft---output shaft intermediate gear
3---output shaft three-range transmission 4---input shaft constant mesh gear
5---five grades of gears 6 of output shaft---output shaft six shift of gears
7---output shaft reverse gears 8---second gear synchronizer
Five or six grades of synchronizers of 9---three fourth gear synchronizers 10---
11--- reverse gear synchronizer 12,13---output shaft bearing
14---bearing of input shaft 15---input shaft
16---jack shaft 17---output shaft
18, one grade of gear of 19---midship shaft bearing 20---jack shaft
21---secondary gear of intermediate shaft 22---third-speed gear of intermediate shaft
23---jack shaft constant mesh gear 24---counter 5th gear
25---jack shaft six shift of gears 26---countershaft reverse gear
The preceding casing of 27---reverse gears 28---
29---rear box 30---midship shaft bearing
31---reverse gear selector fork axis hole
Embodiment one
As shown in Figure 3; This mechanical synchronous transmission mainly constitutes the triple axle speed changer by preceding casing 28, rear box 29, input shaft 15, output shaft 17, jack shaft 16, gear pair, synchronizer and release bearing operating mechanism, and wherein gear pair has one grade of gear 1,20, intermediate gear 2,21; Three-range transmission 3,22; 4,23, five grades of gears 5,24 of constant mesh gear, reverse gear 7,26,27.Between five grades of gears and reverse gear, increase on jack shaft 16 and the output shaft 17 six shift of gears 6,25 is arranged; The secondary independent synchronizer 11 of reverse gear; Five, shared one of six step tooth wheel set is arranged in synchronizer 10 on the output shaft, and 31 secondary of selector fork axis holes of reverse gear are designed with advancing slip space (see figure 5).Input shaft is a shaftgear; As the power input, its power intake is equipped with a bearing and positions, gear position hollow; Be provided with the needle bearing hole is installed; Needle bearing is packed in the end of output shaft, and the input and output axle takes place to connect and transmission through synchronizer on same axis but do not connect mutually when hanging direct high.The axis of jack shaft is parallel with input and output shaft, and fixed gear is arranged on the jack shaft, carries out transmission of power.The tooth hub of synchronizer is contained between output shaft two adjacent teeth wheel, and synchronizer sleeve can engage, separate under the shift fork effect with the synchronous gear ring of adjacent gear.
This structure has overdirve gear, and 4 grades of velocity ratio=1.0,5,6 grade are overdirve gear, and concrete velocity ratio is as shown in the table:
| Gear | Velocity ratio |
| One grade of velocity ratio | 3.769 |
| The second gear velocity ratio | 2.045 |
| The third gear velocity ratio | 1.339 |
| The fourth gear velocity ratio | 1.000 |
| Five grades of velocity ratios | 0.838 |
| Six grades of velocity ratios | 0.63 |
| Reverse gear ratio | 4.128 |
Working principle is following:
When putting in the first speed, a second gear synchronizer 8 engages gear ring (all the other synchronizers are neutral gear) backward, and input shaft 15 power are delivered to jack shaft by normal meshed gears 4,23, are delivered to output shaft gear 1 via countershaft-gear 20 again.
When hanging second gear; One second gear synchronizer 8 engages gear ring (all the other synchronizers are neutral gear) forward; Input shaft 15 power are delivered to jack shaft by normal meshed gears 4,23, are delivered to output shaft gear 2 and synchronizer 8 to output shaft 17 outputting powers via countershaft-gear 21 again.
When hanging third gear; Three fourth gear synchronizers 9 engage gear ring (all the other synchronizers are neutral gear) backward; Input shaft 15 power are delivered to jack shaft by normal meshed gears 4,23, are delivered to output shaft gear 3 and synchronizer 9 to output shaft 17 outputting powers via countershaft-gear 22 again.
When hanging fourth gear, three fourth gear synchronizers 9 engage gear ring (all the other synchronizers are neutral gear) forward, and the power of input shaft 15 is directly delivered to output shaft 17 outputting powers through synchronizer 9.
When hanging five grades; Five or six grades of synchronizers 10 engage gear ring (all the other synchronizers are neutral gear) backward; Input shaft 15 power are delivered to jack shaft by normal meshed gears 4,23, are delivered to output shaft gear 5 and synchronizer 10 to output shaft 17 outputting powers via countershaft-gear 24 again.
When hanging six grades; Five or six grades of synchronizers 10 engage gear ring (all the other synchronizers are neutral gear) forward; Input shaft 15 power are delivered to jack shaft by normal meshed gears 4,23, are delivered to output shaft gear 6 and synchronizer 10 to output shaft 17 outputting powers via countershaft-gear 25 again.
When hanging reverse gear; Reverse gear synchronizer 11 engages gear ring (all the other synchronizers are neutral gear) forward; Input shaft 15 power are delivered to jack shaft by normal meshed gears 4,23; Be delivered to reverse gear shaft gear 27 via countershaft-gear 26 again, be delivered to output shaft gear 7 and synchronizer 11 then to output shaft 17 outputting powers.
Embodiment two
As shown in Figure 4, this mechanical synchronous transmission places five or six grades of synchronizers 10 on the jack shaft 16, and the rotary inertia that can effectively reduce this synchronizer is big, improves synchronizing capacity and operation comfort, and all the other shelves are identical with embodiment one.
Working principle is following:
When hanging five grades; Five or six grades of synchronizers 10 engage gear ring (all the other synchronizers are neutral gear) backward; Input shaft 15 power are delivered to jack shaft by normal meshed gears 4,23, are delivered to output shaft gear 5 to output shaft 17 outputting powers via synchronizer 10 and countershaft-gear 24 again.
When hanging six grades; Five or six grades of synchronizers 10 engage gear ring (all the other synchronizers are neutral gear) forward; Input shaft 15 power are delivered to jack shaft by normal meshed gears 4,23, are delivered to output shaft gear 6 to output shaft 17 outputting powers via synchronizer 10 and countershaft-gear 24 again.
Claims (6)
1. mechanical synchronous transmission; Mainly constitute by casing, input shaft, output shaft, jack shaft, gear pair, synchronizer, release bearing and operating mechanism; Wherein gear pair comprises that one grade of gear pair, intermediate gear are secondary, three-range transmission is secondary, constant mesh gear is secondary, five grades of gear pairs, reverse gear be secondary; Said jack shaft or output shaft are provided with six step tooth wheel set and synchronizer; It is characterized in that said six step tooth wheel set is between five grades of gear pairs and reverse gear pair, said constant mesh gear pair is that fourth gear is secondary; The velocity ratio of said six step tooth wheel set arranges that to clutch end fourth gear is secondary, three-range transmission is secondary, intermediate gear is secondary, one grade of gear pair, reverse gear pair, six step tooth wheel set and five grades of gear pairs from power intake less than five grades of gear pairs on the said jack shaft successively.
2. mechanical synchronous transmission according to claim 1 is characterized in that, the secondary independent synchronizer of said reverse gear.
3. mechanical synchronous transmission according to claim 1 is characterized in that, said five, the shared synchronizer of six step tooth wheel set.
4. mechanical synchronous transmission according to claim 3 is characterized in that, synchronizer said five, the six step tooth wheel set is arranged on the output shaft.
5. mechanical synchronous transmission according to claim 3 is characterized in that, synchronizer said five, the six step tooth wheel set is arranged on the jack shaft.
6. mechanical synchronous transmission according to claim 1 is characterized in that, the secondary selector fork axis hole of said reverse gear only is designed with advancing slip space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910119830 CN101504057B (en) | 2009-03-19 | 2009-03-19 | Mechanical synchronous transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910119830 CN101504057B (en) | 2009-03-19 | 2009-03-19 | Mechanical synchronous transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101504057A CN101504057A (en) | 2009-08-12 |
| CN101504057B true CN101504057B (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910119830 Active CN101504057B (en) | 2009-03-19 | 2009-03-19 | Mechanical synchronous transmission |
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| Country | Link |
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| CN (1) | CN101504057B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216585B (en) * | 2013-04-16 | 2016-03-02 | 重庆大学 | mechanical transmission |
| CN105221681A (en) * | 2015-10-14 | 2016-01-06 | 重庆华陵工业有限公司 | Shift gear drive |
| CN107420497A (en) * | 2017-08-15 | 2017-12-01 | 十堰戎马汽车特种传动有限公司 | Low noise mechanical transmission |
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2009
- 2009-03-19 CN CN 200910119830 patent/CN101504057B/en active Active
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| Publication number | Publication date |
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| CN101504057A (en) | 2009-08-12 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20090812 Assignee: China Changan Automobile Group Assignor: Qingshan Industry Co., Ltd., Chongqing Contract record no.: 2012990000939 Denomination of invention: Mechanical synchronous transmission Granted publication date: 20120704 License type: Exclusive License Record date: 20121227 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |