CN102734441A - Novel dual-intermediate shaft gearbox - Google Patents
Novel dual-intermediate shaft gearbox Download PDFInfo
- Publication number
- CN102734441A CN102734441A CN2012102146121A CN201210214612A CN102734441A CN 102734441 A CN102734441 A CN 102734441A CN 2012102146121 A CN2012102146121 A CN 2012102146121A CN 201210214612 A CN201210214612 A CN 201210214612A CN 102734441 A CN102734441 A CN 102734441A
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- CN
- China
- Prior art keywords
- gear
- odd
- roller bearing
- endoporus
- main tank
- 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.)
- Pending
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Classifications
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- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/043—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion
Abstract
The invention discloses a novel dual-intermediate shaft gearbox. The novel dual-intermediate shaft gearbox comprises a primary box and a secondary box, wherein the primary body is connected with the secondary box through an intermediate shell; an inner hole is formed in the intermediate shell; dual-intermediate shafts are respectively arranged in the primary box and the secondary box; transmission gears which are engaged with each other are respectively arranged on the dual-intermediate shafts of the primary box and the secondary box; a drive gear of the secondary box is matched with the inner hole of the intermediate shell through a bearing; an inner hole is formed in the drive gear; a cylindrical roller bearing is arranged in the inner hole of the drive gear; the cylindrical roller bearing is matched with an output shaft; the back shell of the secondary box is provided with an inner hole; a tapered roller bearing is arranged in the inner hole of the back shell; the tapered roller bearing is matched with the output shaft; and the transmission gears adopt helical gears. The gear engagement stability is improved, the engagement noise is reduced, the bearing capacity of the gearbox is improved, and the service life is prolonged.
Description
Technical field
The present invention relates to automobile technical field, relate in particular to the new type double jack shaft gearbox that a kind of heavy-duty car uses.
Background technique
Generally adopt the twin countershaft transmission structure in the heavy-duty automotive speed changer technology of existing technology; This structure has power dividing, big, the reliability advantages of higher of simple in structure, bearing capacity; But require the coherence request of two countershaft-gear circumferencial directions running high during twin countershaft transmission work, gear generally adopts straight-tooth simultaneously, the shortcoming that particularly gear engagement impact was big when running up, noise is higher when the straight-tooth gear engagement existed running; And along with the development of society; Increasingly high to the automobile noise requirement, speed changer reduces transmission noise and has important function to reducing the car load noise as the important noise source in the car load.Therefore be under the situation of two jack shaft structures at main tank, odd-side, the bearing capacity that has not only reduced the transmission assembly noise but also improved transmission assembly is a problem that presses for solution.
Summary of the invention
The present invention is exactly for solving the shortcoming that gear engagement impact was big, noise is higher when two jack shaft gearboxes that existing technology exists ran up; A kind of new type double jack shaft gearbox is provided; Improve the gear engagement stationarity, reduced gearing noise, the bearing capacity and the working life of having improved gearbox.
The present invention adopts technological scheme to be:
A kind of new type double jack shaft gearbox comprises main tank, odd-side, and main tank is connected through mesochite with odd-side; Mesochite is provided with endoporus, is respectively equipped with two jack shafts in main tank, the odd-side, is respectively equipped with the driving gear of engagement on the two jack shafts in main tank, the odd-side; The actuation gear of said odd-side cooperates with the endoporus of mesochite through bearing, and actuation gear is provided with endoporus, is provided with roller bearing in the endoporus of actuation gear; Roller bearing cooperates with output shaft; The back cover of odd-side is provided with endoporus, is provided with tapered roller bearing in the endoporus of back cover, and tapered roller bearing cooperates with output shaft.
Said driving gear adopts helical gear.The helical gear structure has improved the bearing capacity and the life-span of main tank and odd-side.
Forward gear gear in the said main tank adopts the thin and tall profile of tooth helical teeth of standard of little modulus, big tooth depth coefficient.
Working principle of the present invention: the present invention includes main tank, odd-side, main tank is connected through mesochite with odd-side, and mesochite is provided with endoporus; Be respectively equipped with two jack shafts in main tank, the odd-side, be respectively equipped with the driving gear of engagement on the two jack shafts in main tank, the odd-side, the actuation gear of said odd-side cooperates with the endoporus of mesochite through bearing; Actuation gear is provided with endoporus; Be provided with roller bearing in the endoporus of actuation gear, roller bearing cooperates with output shaft, and the back cover of odd-side is provided with endoporus; Be provided with tapered roller bearing in the endoporus of back cover, tapered roller bearing cooperates with output shaft.The output shaft tapered roller bearing through the rear end respectively supports and the supplemental support of the roller bearing of front end, and this dual-support structure has reduced the influence of external factor to gearbox inside proper functioning, improves the working life of odd-side.The driving gear of said engagement adopts helical gear, the bearing capacity and the life-span of having improved main tank and odd-side.Forward gear gear in the said main tank adopts the thin and tall profile of tooth helical teeth of standard of little modulus, big tooth depth coefficient; Through rationally choosing to design parameters such as helical gear modulus, pressure angle, tooth depth coefficient, modification coefficient, helix angles; Improve accuracy of manufacturing to guarantee the strength of gear teeth; Improve the gear engagement stationarity, reduce gearing noise.
The invention has the beneficial effects as follows:
Output shaft respectively the tapered roller bearing through the rear end support and the supplemental support of the roller bearing of front end, reduced the influence of external factor to gearbox inside proper functioning, improve the working life of odd-side;
2. adopt helical gear structure, the bearing capacity and the life-span of having improved main tank and odd-side;
3. the forward gear gear in the said main tank adopts the thin and tall profile of tooth helical teeth of standard of little modulus, big tooth depth coefficient, improves accuracy of manufacturing to guarantee the strength of gear teeth, improves the gear engagement stationarity, reduces gearing noise.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an output shaft front end auxiliary support structure partial view;
Wherein, 1, mesochite; 2, odd-side actuation gear; 3, roller bearing; 4, output shaft; 5, tapered roller bearing; 6, back cover, 7. main tank, 8. odd-side.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further as follows:
A kind of new type double jack shaft gearbox comprises main tank 7, odd-side 8, and main tank 7 is connected through mesochite 1 with odd-side 8; Mesochite 1 is provided with endoporus, is respectively equipped with two jack shafts in main tank 7, the odd-side 8, is respectively equipped with the driving gear of engagement on the two jack shafts in main tank 7, the odd-side 8; The actuation gear 2 of said odd-side cooperates with the endoporus of mesochite 1 through bearing, and actuation gear 2 is provided with endoporus, is provided with roller bearing 3 in the endoporus of actuation gear 2; Roller bearing 3 cooperates with output shaft 4; The back cover 6 of odd-side 8 is provided with endoporus, is provided with tapered roller bearing 5 in the endoporus of back cover 6, and tapered roller bearing 5 cooperates with output shaft 4.The tapered roller bearing 5 of output shaft 4 through the rear end supports and the supplemental support of the roller bearing 3 of front end has realized the dual-support structure of output shaft 4 having reduced the influence of external factor to gearbox inside proper functioning, improves the working life of odd-side 8.Said driving gear adopts helical gear.The helical gear structure has improved the bearing capacity and the life-span of main tank 7 and odd-side 8.Forward gear gear in the said main tank 7 adopts the thin and tall profile of tooth helical teeth of standard of little modulus, big tooth depth coefficient.The design key of accurate thin and tall profile of tooth helical teeth design gear is rationally choosing of design parameters such as modulus, pressure angle, tooth depth coefficient, modification coefficient, helix angle, improves accuracy of manufacturing to guarantee the strength of gear teeth, improves the gear engagement stationarity, reduces gearing noise.
Though the above-mentioned accompanying drawing specific embodiments of the invention that combines is described; But be not restriction to protection domain of the present invention; One of ordinary skill in the art should be understood that; On the basis of technological scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (3)
1. a new type double jack shaft gearbox comprises main tank, odd-side, and main tank is connected through mesochite with odd-side; Mesochite is provided with endoporus, is respectively equipped with two jack shafts in main tank, the odd-side, is respectively equipped with the driving gear of engagement on the two jack shafts in main tank, the odd-side; It is characterized in that the actuation gear of said odd-side cooperates with the endoporus of mesochite through bearing, actuation gear is provided with endoporus; Be provided with roller bearing in the endoporus of actuation gear, roller bearing cooperates with output shaft, and the back cover of odd-side is provided with endoporus; Be provided with tapered roller bearing in the endoporus of back cover, tapered roller bearing cooperates with output shaft.
2. new type double jack shaft gearbox as claimed in claim 1 is characterized in that, said driving gear adopts helical gear.
3. new type double jack shaft gearbox as claimed in claim 1, its characteristic, the forward gear gear in the said main tank adopts the thin and tall profile of tooth helical teeth of standard of little modulus, big tooth depth coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102146121A CN102734441A (en) | 2012-06-27 | 2012-06-27 | Novel dual-intermediate shaft gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102146121A CN102734441A (en) | 2012-06-27 | 2012-06-27 | Novel dual-intermediate shaft gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102734441A true CN102734441A (en) | 2012-10-17 |
Family
ID=46990486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102146121A Pending CN102734441A (en) | 2012-06-27 | 2012-06-27 | Novel dual-intermediate shaft gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102734441A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185431A (en) * | 2018-09-30 | 2019-01-11 | 厦门南超机械有限公司 | A kind of transmission device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1249701A (en) * | 1968-01-25 | 1971-10-13 | Caterpillar Tractor Co | Mechanical drive transmission |
| US5921137A (en) * | 1996-08-19 | 1999-07-13 | Zf Friedrichshafen Ag | Axial support for vehicle gearboxes with helical gear |
| CN200985988Y (en) * | 2006-12-12 | 2007-12-05 | 陕西法士特齿轮有限责任公司 | Secondary box helical teeth double middle shafts automobile speed variator |
| EP1998080A2 (en) * | 2007-06-01 | 2008-12-03 | Fuji Jukogyo Kabushiki Kaisha | Final reduction gear device |
| CN201198893Y (en) * | 2008-05-30 | 2009-02-25 | 陕西法士特齿轮有限责任公司 | Double-middle shaft helical teeth speed variator |
| CN201547192U (en) * | 2009-12-15 | 2010-08-11 | 中国重汽集团大同齿轮有限公司 | Ten-gear gearbox for heavy-duty vehicle |
| CN102401093A (en) * | 2011-11-11 | 2012-04-04 | 中国重汽集团济南动力有限公司 | Dual-intermediate-shaft gearbox |
| CN202195012U (en) * | 2011-08-11 | 2012-04-18 | 中国重汽集团济南动力有限公司 | Novel double intermediate shaft thin-tooth gear box |
| CN202629025U (en) * | 2012-06-27 | 2012-12-26 | 中国重汽集团济南动力有限公司 | Novel double-middle shaft gearbox |
-
2012
- 2012-06-27 CN CN2012102146121A patent/CN102734441A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1249701A (en) * | 1968-01-25 | 1971-10-13 | Caterpillar Tractor Co | Mechanical drive transmission |
| US5921137A (en) * | 1996-08-19 | 1999-07-13 | Zf Friedrichshafen Ag | Axial support for vehicle gearboxes with helical gear |
| CN200985988Y (en) * | 2006-12-12 | 2007-12-05 | 陕西法士特齿轮有限责任公司 | Secondary box helical teeth double middle shafts automobile speed variator |
| EP1998080A2 (en) * | 2007-06-01 | 2008-12-03 | Fuji Jukogyo Kabushiki Kaisha | Final reduction gear device |
| CN201198893Y (en) * | 2008-05-30 | 2009-02-25 | 陕西法士特齿轮有限责任公司 | Double-middle shaft helical teeth speed variator |
| CN201547192U (en) * | 2009-12-15 | 2010-08-11 | 中国重汽集团大同齿轮有限公司 | Ten-gear gearbox for heavy-duty vehicle |
| CN202195012U (en) * | 2011-08-11 | 2012-04-18 | 中国重汽集团济南动力有限公司 | Novel double intermediate shaft thin-tooth gear box |
| CN102401093A (en) * | 2011-11-11 | 2012-04-04 | 中国重汽集团济南动力有限公司 | Dual-intermediate-shaft gearbox |
| CN202629025U (en) * | 2012-06-27 | 2012-12-26 | 中国重汽集团济南动力有限公司 | Novel double-middle shaft gearbox |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185431A (en) * | 2018-09-30 | 2019-01-11 | 厦门南超机械有限公司 | A kind of transmission device |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20121017 |