CN202195012U - Novel double intermediate shaft thin-tooth gear box - Google Patents
Novel double intermediate shaft thin-tooth gear box Download PDFInfo
- Publication number
- CN202195012U CN202195012U CN 201120290722 CN201120290722U CN202195012U CN 202195012 U CN202195012 U CN 202195012U CN 201120290722 CN201120290722 CN 201120290722 CN 201120290722 U CN201120290722 U CN 201120290722U CN 202195012 U CN202195012 U CN 202195012U
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- CN
- China
- Prior art keywords
- box
- gear
- auxiliary
- odd
- 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.)
- Expired - Lifetime
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a novel double intermediate shaft thin-tooth gear box which comprises a main box and an auxiliary box. Double intermediate shafts are arranged in the main box and the auxiliary box; a thin-tooth gear is arranged in the main box; a thin-tooth gear and a skew-tooth gear are arranged in the auxiliary box; a cylindrical roller bearing is sleeved at the front end of an output shaft in the auxiliary box; and a tapered roller bearing is sleeved at the rear end of the output shaft. The novel double intermediate shaft thin-tooth gear box has the benefits that as auxiliary supporting is designed at the front end of the output shaft of the auxiliary box, front and rear supports of the output shaft can reduce the influence of vehicle factors on the normal operation inside the gear box, such as the influence of an unbalanced transmission shaft on the normal operation inside the gear box; and as the auxiliary box gear adopts the design of auxiliary tooth and skew tooth, the bearing capability of the auxiliary box is improved, the service life of the auxiliary box is prolonged, and simultaneously the noise of a gear box assembly is greatly reduced.
Description
Technical field
The utility model relates to a kind of new type double jack shaft serration gearbox.
Background technique
The modern heavy-duty automobile mechanical manually and the automatic transmission case design of gears all adopt the profile of tooth of low noise, high bearing capacity, be the requirement that the straight-tooth serration tooth Shape Design of representative has satisfied above-mentioned development with EATON.EATON company is for reducing two jack shaft straight-tooth gear gearbox noises; Reach needs with similar single countershaft helical teeth gearbox competition; Began development " serration " gearbox in 1978; Go out to have " serration " gearbox of large end face contact ratio through the development test of 4 years, reach and reduce noise significantly, and satisfy the double requirements of fatigue life.
It is big that two jack shaft structures have a transmitting torque; The characteristics of long service life; If scope shelves odd-side also adopts two jack shaft structures; Want to reach enough big velocity ratio the gear diameter on the odd-side jack shaft is differed greatly, its life-span can be mutually far short of what is expected, had a strong impact on the working life of whole gearbox.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
Be technical deficiency more than solving, the utility model provides a kind of new type double jack shaft serration gearbox, has not only improved the gearbox bearing capacity but also reduced the transmission assembly noise significantly.
The utility model is realized through following measure:
A kind of new type double jack shaft serration gearbox of the utility model; Comprise main tank and odd-side; Be provided with two jack shafts in said main tank and the odd-side, be provided with the entomodont gear in the said main tank, be provided with entomodont and plagiodont gear in the said odd-side; Output shaft front end sleeve in the said odd-side is connected to roller bearing, and the output shaft rear end is socketed with tapered roller bearing.
Preferably, the transverse contact ratio of above-mentioned main tank internal serration type gear is greater than 2.
The beneficial effect of the utility model is:
The output shaft Front-end Design supplemental support of odd-side; Dual-gripper can reduce the influence of car load factor to gearbox inside proper functioning before and after the output shaft; For example the transmission shaft imbalance is to the influence of gearbox inside proper functioning; The odd-side gear adopts serration to add the helical teeth design, has improved odd-side bearing capacity and life-span, reduces the transmission assembly noise simultaneously significantly.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is an output shaft dual-support structure schematic representation in the odd-side;
Wherein, A main tank, B odd-side, 1 mesochite, 2 odd-side actuation gears, 3 roller bearings, 4 output shafts, 5 tapered roller bearings, 6 back covers.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
Like Fig. 1, shown in 2, a kind of new type double jack shaft transmission assembly of the utility model, main tank A is two jack shaft structures; Main tank A forward gear gear adopts the entomodont gear, and the design key of serration gear is rationally choosing of design parameters such as modulus, pressure angle, modification coefficient, and design guarantees that the gear engagement contact ratio is greater than 2; Reduce noise; Improve accuracy of manufacturing and particularly reduce circular pitch error,, improve the gear engagement stationarity to guarantee the strength of gear teeth.
Odd-side B is two jack shaft structures; Adopt entomodont and plagiodont gear; For further improving odd-side B bearing capacity and life-span; On the basis of serration tooth Shape Design, increase the strength of gear teeth that helix angle improves odd-side B, and the low retaining gear in the odd-side B structure is adopted next bearing capacity and the life-span of further improving odd-side B of reinforcement design.
Odd-side actuation gear 2 is supported in mesochite 1 endoporus, and roller bearing 3 is supported in odd-side actuation gear 1 endoporus, and tapered roller bearing 5 is supported in back cover 6 endoporus.Output shaft 4 is designed to dual-support structure; Output shaft 4 rear ends are supported by tapered roller bearing 5; Front-end Design roller bearing 3 plays the supplemental support effect; The dual-support structure of output shaft 4 has reduced the influence of car load factor (for example transmission shaft is uneven) to gearbox inside proper functioning, the working life of improving odd-side B.
The foregoing description is said to be in order to specify this patent; Though describe through specific term in the literary composition; But can not limit the protection domain of this patent with this; The personage who is familiar with this technical field can change or revise it after the spirit of understanding this patent and principle and reach equivalent purpose, and this equivalence change and modification all should be covered by the claim scope and define in the category.
Claims (2)
1. new type double jack shaft serration gearbox; Comprise main tank and odd-side; Be provided with two jack shafts in said main tank and the odd-side, it is characterized in that: be provided with the entomodont gear in the said main tank, be provided with entomodont and plagiodont gear in the said odd-side; Output shaft front end sleeve in the said odd-side is connected to roller bearing, and the output shaft rear end is socketed with tapered roller bearing.
2. according to the said new type double jack shaft of claim 1 serration gearbox, it is characterized in that: the transverse contact ratio of said main tank internal serration type gear is greater than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120290722 CN202195012U (en) | 2011-08-11 | 2011-08-11 | Novel double intermediate shaft thin-tooth gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120290722 CN202195012U (en) | 2011-08-11 | 2011-08-11 | Novel double intermediate shaft thin-tooth gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202195012U true CN202195012U (en) | 2012-04-18 |
Family
ID=45949924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120290722 Expired - Lifetime CN202195012U (en) | 2011-08-11 | 2011-08-11 | Novel double intermediate shaft thin-tooth gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202195012U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734441A (en) * | 2012-06-27 | 2012-10-17 | 中国重汽集团济南动力有限公司 | Novel dual-intermediate shaft gearbox |
| CN107120254A (en) * | 2017-06-26 | 2017-09-01 | 中车北京南口机械有限公司 | Drilling equipment |
-
2011
- 2011-08-11 CN CN 201120290722 patent/CN202195012U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734441A (en) * | 2012-06-27 | 2012-10-17 | 中国重汽集团济南动力有限公司 | Novel dual-intermediate shaft gearbox |
| CN107120254A (en) * | 2017-06-26 | 2017-09-01 | 中车北京南口机械有限公司 | Drilling equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |
|
| CX01 | Expiry of patent term |