CN203384303U - Double-jack-shaft speed reducer with function of axial self adaption and helical tooth transmission structure - Google Patents
Double-jack-shaft speed reducer with function of axial self adaption and helical tooth transmission structure Download PDFInfo
- Publication number
- CN203384303U CN203384303U CN201320486020.5U CN201320486020U CN203384303U CN 203384303 U CN203384303 U CN 203384303U CN 201320486020 U CN201320486020 U CN 201320486020U CN 203384303 U CN203384303 U CN 203384303U
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- gear
- helical teeth
- jack
- shaft
- speed reducer
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 title abstract 6
- 230000003044 adaptive effect Effects 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000011324 bead Substances 0.000 claims description 5
- 239000000446 fuel Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model relates to a double-jack-shaft speed reducer with the function of axial self adaption and a helical tooth transmission structure. Jack shafts are installed in a shell of the speed reducer on one side of an input shaft. A helical tooth on an input shaft gear is meshed with helical teeth on jack shaft gears. The helical teeth on the jack shaft gears are meshed with a helical tooth on the output shaft gear. The helical tooth on the input shaft gear is meshed with a helical tooth on a two-shaft gear. The helical tooth on the two-shaft drive gear is meshed with the output shaft gear. Axial fluctuation of the jack shafts and the self-adaption principle are adopted to achieve the purpose that loads are evenly distributed on the double jack shafts. The speed reducer has larger load capacity, higher fuel economy and higher efficiency and the axial size of the speed reducer is short. The speed reducer is compact in layout, low in manufacturing cost, capable of prolonging the service life of a synchronizer, good in gear-shift quality, low in gear-shift noise and suitable for being applied to overload automobiles, heavy container motor tractors, dumpers, crane trucks, all sorts of special vehicles, large coaches and urban buses in a matched mode.
Description
Technical field
The utility model belongs to the auto parts machinery technical field, relate to a kind of heavy-load automobile, heavy container tractor, dumping car, truck crane, various special car and special vehicle of not only being adapted to, more can be for the axial adaptive twin countershaft transmission that has of motorbus and the matching used employing helical teeth of city bus drive mechanism.
Background technique
The load that existing twin countershaft transmission adopts the radial floating principle to reach two jack shafts because main shaft and its cog distributes, brought the life problems of synchronizer, adopt collar shift therefore most, be unfavorable for that gear shift, noise are high, if employing synchronizer shift, due to the radial floating principle, must cause synchronizer and synchronous cone part to contact, therefore synchronising torque is inadequate, the synchronizer serious wear, and the life-span is short, premature failure, shift quality is poor, gear shift is difficult, and the gear shift noise is high, becomes global problem.
The model utility content
In order to overcome the above-mentioned shortcoming of prior art, it is uniform that the utility model provides a kind of employing jack shaft axial float and adaptive principle to reach two jack shaft load, improved the working life of synchronizer, shift quality is good, the employing helical teeth drive mechanism that the gear shift noise is low there is axial adaptive twin countershaft transmission.
The utility model solves the technological scheme that its technical problem adopts: a kind of axial adaptive twin countershaft transmission of having of helical teeth drive mechanism that adopts, comprise input shaft and output shaft, in the gear box casing of input shaft one side, jack shaft is housed, helical teeth on input shaft gear is meshed with the helical teeth on countershaft-gear, and the helical teeth on countershaft-gear is meshed with the helical teeth on output shaft gear; Helical teeth on input shaft gear is meshed with the helical teeth on two shaftgears, and the helical teeth on the actuation gear of two axles is meshed with output shaft gear.
Low speed gear is housed on output shaft.
Be provided with cap assembly on the top of input shaft and output shaft.
In the bottom of output shaft, one side is provided with bonnet.
A side at jack shaft is equipped with clutch housing.
Bead is equipped with in end at output shaft.
The beneficial effects of the utility model are: the master of speed changer, odd-side all adopts two middle shaft helical teeth drive mechanisms, the seriation degree is high, higher specific power is arranged, speed changer has higher load bearing capacity, fuel economy and efficiency, the speed changer axial dimension is short, compact in design, low cost of manufacture, adopt jack shaft axial float and adaptive principle to reach two jack shaft load uniform, improved the working life of synchronizer, shift quality is good, the gear shift noise is low, it not only is adapted to heavy-load automobile, heavy container tractor, dumping car, truck crane, various special cars and special vehicle, more can support the use for motorbus and city bus.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: the upper cap assembly of 1-, 2-actuation gear, 3-low speed gear, 4-bead, 5-output shaft, 6-bonnet, 7-bis-axles, 8-clutch housing, 9-jack shaft, 10-input shaft.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Referring to Fig. 1, a kind of axial adaptive twin countershaft transmission of having of helical teeth drive mechanism that adopts, comprise input shaft 10 and output shaft 5, in the gear box casing 8 of input shaft 10 1 sides, jack shaft 9 is housed, helical teeth on input shaft 10 gears is meshed with the helical teeth on jack shaft 9 gears, and the helical teeth on jack shaft 9 gears is meshed with the helical teeth on output shaft 5 gears; Helical teeth on input shaft 10 gears is meshed with the helical teeth on two axle 7 gears, helical teeth on the actuation gear 2 of two axles 7 is meshed with output shaft 5 gears, low speed gear 3 is housed on output shaft 5, top at input shaft 10 and output shaft 5 is provided with cap assembly 1, in the bottom of output shaft 5, a side is provided with bonnet 6, a side at jack shaft 9 is equipped with clutch housing 8, in the end of output shaft 5, bead 4 is housed.
The master of speed changer of the present utility model, odd-side all adopts two middle shaft helical teeth drive mechanisms, the seriation degree is high, higher specific power is arranged, speed changer has higher load bearing capacity, fuel economy and efficiency, the speed changer axial dimension is short, compact in design, low cost of manufacture, adopt jack shaft axial float and adaptive principle to reach two jack shaft load uniform, improved the working life of synchronizer, shift quality is good, the gear shift noise is low, it not only is adapted to heavy-load automobile, heavy container tractor, dumping car, truck crane, various special cars and special vehicle, more can support the use for motorbus and city bus.
Claims (7)
1. adopt the axial adaptive twin countershaft transmission that has of helical teeth drive mechanism, comprise input shaft and output shaft, it is characterized in that: in the gear box casing of input shaft one side, jack shaft is housed, helical teeth on input shaft gear is meshed with the helical teeth on countershaft-gear, and the helical teeth on countershaft-gear is meshed with the helical teeth on output shaft gear; Helical teeth on input shaft gear is meshed with the helical teeth on two shaftgears, and the helical teeth on the actuation gear of two axles is meshed with output shaft gear.
2. adopt as claimed in claim 1 the axial adaptive twin countershaft transmission of having of helical teeth drive mechanism, it is characterized in that: low speed gear is housed on output shaft.
3. adopt as claimed in claim 1 the axial adaptive twin countershaft transmission of having of helical teeth drive mechanism, it is characterized in that: on the top of input shaft and output shaft, be provided with cap assembly.
4. as the axial adaptive twin countershaft transmission that has of employing helical teeth drive mechanism as described in claim 1 or 2 or 3, it is characterized in that: in the bottom of output shaft, one side is provided with bonnet.
5. adopt as claimed in claim 1 the axial adaptive twin countershaft transmission of having of helical teeth drive mechanism, it is characterized in that: the side at jack shaft is equipped with clutch housing.
6. as the axial adaptive twin countershaft transmission that has of employing helical teeth drive mechanism as described in claim 1 or 2 or 3, it is characterized in that: bead is equipped with in the end at output shaft.
7. adopt as claimed in claim 4 the axial adaptive twin countershaft transmission of having of helical teeth drive mechanism, it is characterized in that: bead is equipped with in the end at output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486020.5U CN203384303U (en) | 2013-08-10 | 2013-08-10 | Double-jack-shaft speed reducer with function of axial self adaption and helical tooth transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486020.5U CN203384303U (en) | 2013-08-10 | 2013-08-10 | Double-jack-shaft speed reducer with function of axial self adaption and helical tooth transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384303U true CN203384303U (en) | 2014-01-08 |
Family
ID=49872798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486020.5U Expired - Fee Related CN203384303U (en) | 2013-08-10 | 2013-08-10 | Double-jack-shaft speed reducer with function of axial self adaption and helical tooth transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758947A (en) * | 2014-01-28 | 2014-04-30 | 綦江大力神齿轮有限公司 | Mechanical three-shaft type high-speed-ratio automobile gearbox |
-
2013
- 2013-08-10 CN CN201320486020.5U patent/CN203384303U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758947A (en) * | 2014-01-28 | 2014-04-30 | 綦江大力神齿轮有限公司 | Mechanical three-shaft type high-speed-ratio automobile gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 |