CN203335799U - Novel preposed auxiliary gear box assembly - Google Patents
Novel preposed auxiliary gear box assembly Download PDFInfo
- Publication number
- CN203335799U CN203335799U CN2013204063439U CN201320406343U CN203335799U CN 203335799 U CN203335799 U CN 203335799U CN 2013204063439 U CN2013204063439 U CN 2013204063439U CN 201320406343 U CN201320406343 U CN 201320406343U CN 203335799 U CN203335799 U CN 203335799U
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- gear
- axle
- sliding
- ring
- sliding gear
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Abstract
The utility model relates to a novel preposed auxiliary gear box assembly which is simple in structure and capable of avoiding oil leakage. The novel preposed auxiliary gear box assembly comprises a shell body, a first main shaft and a first auxiliary shaft. The first main shaft and the first auxiliary shaft are respectively installed on the shell body through a radial ball bearing in a supported mode. The first main shaft is coaxially arranged on the first auxiliary shaft through a needle bearing in a sleeved mode. A frame-type oil seal is arranged between the first main shaft and the shell body and at the inner side of one radial ball bearing and a frame-type oil seal is arranged between the first auxiliary shaft and the shell body and at the inner side of the other radial ball bearing. The first auxiliary shaft is provided with a low-gear gear wheel through a needle bearing. A fixing gear block is fixedly arranged on the first auxiliary shaft and is sleeved with a sliding gear sleeve. Outer teeth are arranged at one side, close to the low-gear gear wheel, of the outer ring of the sliding gear sleeve. The sliding gear sleeve can slide left and right on the fixing gear block in the axial direction of the first auxiliary shaft, a gear ring capable of allowing the sliding gear sleeve to enter in a matched mode and being meshed with the sliding gear sleeve is formed in one end, close to the sliding gear sleeve, of the low-gear gear wheel, and the gear ring comprises an outer gear ring and an inner gear ring.
Description
Technical field
The utility model relates to a kind of novel front auxiliary gear box assembly.
Background technique
China Patent No.: ZL 200920138990.X discloses a kind of front auxiliary gear box assembly; comprise housing, selector fork, input shaft and output shaft; wherein; one end of input shaft extend in housing; on it, cover has bootom gear and gear shift tooth part, and fixedly toothholder and the input shaft of gear shift tooth part are fixed with one; Gear on output shaft is that high speed gear is arranged in housing, and the output shaft the other end stretches out in outside housing; The shift fork end of selector fork extend into housing and coordinates and drive sliding gear collar to horizontally slip with the sliding gear collar of gear shift tooth part; The sliding gear collar of described gear shift tooth part is provided with internal tooth, and can horizontally slip and respectively with the spline engagement of bootom gear and high speed gear, above-mentioned bootom gear and high speed gear are by being arranged at the duplicate gear engagement driving of both homonymies.This front auxiliary gear box assembly, be by the engagement of sliding gear collar internal tooth while using the high, low speed shelves, simple and compact for structure, is convenient to shift control, not easy to trip over stop.But when reality is used, owing between a main axle and housing, having gap, the oil body in auxiliary transmission easily spills, and causes environmental pollution, the oil body waste; And also there is gap between a secondary axle and housing, and because the oil level of gearbox is usually high than the oil level of auxiliary transmission, this just makes when gearbox moves, oil body can produce motion, thereby enter auxiliary transmission between a secondary axle and housing, oil body easily oozes out from the joint of a main axle and housing again, causes oil leakage phenomenon.Existing bootom gear due to wearing and tearing, has some plaies after being that the sliding gear collar cooperation time grown, and affects the stability of whole transmission, can produce the harmful effects such as vibrations.
Summary of the invention
Therefore, for above-mentioned problem, the utility model proposes a kind of simple in structure, novel front auxiliary gear box assembly that can prevent leakage of oil.
For achieving the above object, the utility model has adopted following technological scheme: a kind of novel front auxiliary gear box assembly, comprise housing, a main axle, a secondary axle, described master's one axle, a secondary axle supports and is loaded on housing by radial ball bearing respectively, described master's one axle is located on a secondary axle by the needle bearing coaxial sleeve, described master's one axle, be positioned at two radial ball bearing inboards between a secondary axle and housing and be provided with skeleton-type oil seal, be provided with bootom gear by needle bearing on a described secondary axle, be installed with fixedly toothholder on a described secondary axle, be arranged with sliding gear collar on described fixedly toothholder, a side near bootom gear on the outer ring of described sliding gear collar is provided with external tooth, described sliding gear collar can be along the axial direction of a secondary axle in the fixedly upper left right slip of toothholder, described bootom gear is near offering the gear ring that coordinates sliding gear collar to enter and mesh on an end of sliding gear collar, described gear ring comprises external toothing and ring gear.
By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: with existing front auxiliary gear box assembly, compare, the utility model has increased skeleton-type oil seal in the joint of main an axle, a secondary axle and housing respectively, make the better tightness of novel front auxiliary gear box, played the effect that prevents leakage of oil.Increased external toothing and sliding gear collar engagement, the intensity of bootom gear is larger, and better with coordinating of sliding gear collar, practicability is stronger.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged view at A place in Fig. 1.
Embodiment
Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.
With reference to figure 1, Fig. 2, the present embodiment provides a kind of novel front auxiliary gear box assembly, due to the structure of novel front auxiliary gear box assembly in China Patent No.: in ZL 200920138990.X, be described in detail, at this, do not repeated, comprise housing 1, a main axle 2, a secondary axle 3, described master's one axle 2, a secondary axle 3 support and are loaded on housing 1 by radial ball bearing 4 respectively, described master's one axle 2 is located on a secondary axle 3 by needle bearing 5 coaxial sleeves, is positioned at two radial ball bearing 4 inboards between described master's one axle 2, a secondary axle 3 and housing 1 and is provided with skeleton-type oil seal 9.Be provided with bootom gear 6 by needle bearing on a described secondary axle 3, be installed with fixedly toothholder 7 on a described secondary axle 3, be arranged with sliding gear collar 8 on described fixedly toothholder 7, a side near bootom gear 6 on the outer ring of described sliding gear collar 8 is provided with external tooth 81, described sliding gear collar 8 can fixedly horizontally slip on toothholder 7 along the axial direction of a secondary axle 3, described bootom gear 6 is near offering the gear ring 61 that coordinates sliding gear collar 8 to enter and mesh on an end of sliding gear collar 8, described gear ring 61 comprises external toothing 611 and ring gear 612.
With existing front auxiliary gear box assembly, compare, the utility model has increased skeleton-type oil seal in the joint of main an axle, a secondary axle and housing respectively, makes the better tightness of novel front auxiliary gear box, has played the effect that prevents leakage of oil.Increased external toothing and sliding gear collar engagement, the intensity of bootom gear is larger, and better with coordinating of sliding gear collar, practicability is stronger.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (1)
1. a novel front auxiliary gear box assembly, it is characterized in that: comprise housing, a main axle, a secondary axle, described master's one axle, a secondary axle supports and is loaded on housing by radial ball bearing respectively, described master's one axle is located on a secondary axle by the needle bearing coaxial sleeve, described master's one axle, be positioned at two radial ball bearing inboards between a secondary axle and housing and be provided with skeleton-type oil seal, be provided with bootom gear by needle bearing on a described secondary axle, be installed with fixedly toothholder on a described secondary axle, be arranged with sliding gear collar on described fixedly toothholder, a side near bootom gear on the outer ring of described sliding gear collar is provided with external tooth, described sliding gear collar can be along the axial direction of a secondary axle in the fixedly upper left right slip of toothholder, described bootom gear is near offering the gear ring that coordinates sliding gear collar to enter and mesh on an end of sliding gear collar, described gear ring comprises external toothing and ring gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204063439U CN203335799U (en) | 2013-07-09 | 2013-07-09 | Novel preposed auxiliary gear box assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204063439U CN203335799U (en) | 2013-07-09 | 2013-07-09 | Novel preposed auxiliary gear box assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335799U true CN203335799U (en) | 2013-12-11 |
Family
ID=49704475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204063439U Expired - Fee Related CN203335799U (en) | 2013-07-09 | 2013-07-09 | Novel preposed auxiliary gear box assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335799U (en) |
-
2013
- 2013-07-09 CN CN2013204063439U patent/CN203335799U/en not_active Expired - Fee Related
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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: 20131211 Termination date: 20160709 |