CN201003598Y - Motorcycle speed transmission thrust augmentor - Google Patents
Motorcycle speed transmission thrust augmentor Download PDFInfo
- Publication number
- CN201003598Y CN201003598Y CNU2007201245745U CN200720124574U CN201003598Y CN 201003598 Y CN201003598 Y CN 201003598Y CN U2007201245745 U CNU2007201245745 U CN U2007201245745U CN 200720124574 U CN200720124574 U CN 200720124574U CN 201003598 Y CN201003598 Y CN 201003598Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- input shaft
- speed change
- lower box
- seal ring
- 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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- General Details Of Gearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a motor cycle transmission power increaser comprising an upper box body(6), a lower box body(8) fixedly connected with the upper box body, an internal bearing(7) arranged at the middle part of one head face of the upper box body(6) and the lower box body(8); an intermediate shaft positioning bearing(9) arranged at the lower part of the head face of the lower box body(8), and an input shaft whose one end is positioned through the internal bearing(7), and whose another end sticks outwards. The utility model is characterized in that: a fixing sealing device is arranged at the end of the input shaft(1) which sticks outwards. The transmission power increaser for a normal motor tricycle regarding the utility model comes in reasonable structure, fixed and reliable input shaft, stable running working, and long life expectancy.
Description
Technical field
The utility model relates to a kind of motorcycle speed change booster, is specifically related to a kind of speed change booster of motor tricycle.
Background technique
Present motor tricycle speed change booster, be to adopt a deep groove ball bearing that is installed in the upper and lower casing end face of speed change booster middle part that an end that has drive wheel of input shaft is fixed in the speed change booster casing, then unsettled the stretching out outside the casing of the other end is connected with motor, this structure also makes input shaft reliability of fixation on speed change booster casing poor, poor stability during running, fixedly the deep groove ball bearing of input shaft damages easily, even cause the gear in the speed change booster to be damaged, thereby make whole speed change booster very short working life.
Summary of the invention
The purpose of this utility model provides a kind of rational in infrastructure, and input shaft is fixing reliable, the motor tricycle speed change booster of long service life.
The purpose of this utility model is achieved in that a kind of motorcycle speed change booster, comprise upper box, the lower box of fixedlying connected with upper box, be installed in the inner bearing at upper box, lower box one end face middle part, be installed in the jack shaft positioning bearing of this end face bottom of lower box, and one end through inner bearing location, the outwardly directed input shaft of the other end, it is characterized in that: the external part at described input shaft has additional the fixing seal device.
The said fixing seal arrangement comprises bearing support, outer bearing and seal ring, wherein said bearing support is fixedlyed connected with the end face of described upper box and described lower box, described outer bearing and described seal ring are separately fixed in the step in the inboard of described bearing support and the outside, and the external part of described input shaft passes the endoporus of described outer bearing and described seal ring.
Above-mentioned inner bearing and described outer bearing can be rolling bearing, but are good with deep groove ball bearing; Described seal ring can be lip-type packing; Described input shaft and described outer bearing are drive fit or little Spielpassung, with described seal ring for being sealed and matched.
Can be at the arranged outside jack shaft cover plate of described jack shaft positioning bearing, described jack shaft cover plate is fixedlyed connected with the end face of described lower box.
The motorcycle speed change booster that the utility model provides, owing to set up a bearing support at the external part place of the end face of speed change booster, input shaft and the zanjon bulbi externusaxis holds, make and be with two deep groove ball bearings on the input shaft, two deep groove ball bearings are stabilized in input shaft on the speed change booster casing reliably, have guaranteed stability, the reliability of input shaft in operation process; Running shaft is arranged on the lubricant oil in the speed change booster of to seal in the bearing support outside with lip-type packing, can also allow the outer bearing of oil lubrication in the bearing support in the speed change booster, thereby increase the working life of two bearings, more can guarantee the stability of input shaft when running up, avoid the gear in the speed change booster to be damaged, increased whole speed change booster working life.In addition, owing to change the former nonmetal end cap that is fixed on the jack shaft positioning bearing outside that snaps on the speed change booster into the lower box fixed seal connection cover plate, strengthened the reliability of the sealing at this position.
In sum, the motor tricycle speed change booster that the utility model provides is rational in infrastructure, and input shaft is fixing reliable, and running is stable, long service life.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is that the A of Fig. 1 is to structural representation.
Embodiment
Embodiment: referring to Fig. 1, Fig. 2, a kind of motorcycle speed change booster, comprise upper box 6, the lower box 8 of fixedlying connected with upper box 6, be installed in the inner bearing 7 at upper box 6, lower box 8 one end faces middle part, be installed in the jack shaft positioning bearing 9 of lower box 8 these end face bottoms, and an end is through inner bearing 7 location, the outwardly directed input shaft 1 of the other end, it is characterized in that: the external part at described input shaft 1 has additional the fixing seal device.
Described fixing seal device comprises bearing support 4, outer bearing 5 and seal ring 2, wherein said bearing support 4 is fixedlyed connected with the end face of described lower box 8 with described upper box 6 through bolt 3, described outer bearing 5 and described seal ring 2 are separately fixed in the step in the inboard of described bearing support 4 and the outside, and the external part of described input shaft 1 passes the endoporus of described outer bearing 5 and described seal ring 2.
Described inner bearing 7 and described outer bearing 5 are deep groove ball bearing; Described seal ring 2 is lip-type packing; Described input shaft 1 and described outer bearing 5 be for drive fit cooperates, with described seal ring 2 for being sealed and matched.
At the arranged outside jack shaft cover plate 10 of described jack shaft positioning bearing 9, described jack shaft cover plate 10 is fixedlyed connected with the end face of described lower box 8 through bolt; The side on described jack shaft cover plate 10 tops matches with the side of described bearing support 4 bottoms.
In the present embodiment, other structure of motorcycle speed change booster is conventional the setting.
Claims (4)
1, a kind of motorcycle speed change booster, comprise upper box (6), the lower box (8) of fixedlying connected with upper box (6), be installed in the inner bearing (7) at upper box (6), lower box (8) one end faces middle part, be installed in the jack shaft positioning bearing (9) of this end face bottom of lower box (8), and one end through inner bearing (7) location, the outwardly directed input shaft of the other end (1), it is characterized in that: the external part at described input shaft (1) has additional the fixing seal device.
2, motorcycle speed change booster as claimed in claim 1, it is characterized in that: described fixing seal device comprises bearing support (4), outer bearing (5) and seal ring (2), wherein said bearing support (4) is fixedlyed connected with the end face of described lower box (8) with described upper box (6), described outer bearing (5) and described seal ring (2) are separately fixed in the step in the inboard of described bearing support (4) and the outside, and the external part of described input shaft (1) passes the endoporus of described outer bearing (5) and described seal ring (2).
3, motorcycle speed change booster as claimed in claim 2 is characterized in that: described inner bearing (7) and described outer bearing (5) are rolling ball bearing; Described seal ring (2) is lip-type packing; Described input shaft (1) and described outer bearing (5) are drive fit or little Spielpassung, with described seal ring (2) for being sealed and matched.
4, motorcycle speed change booster as claimed in claim 1 or 2 is characterized in that: at the arranged outside jack shaft cover plate (10) of described jack shaft positioning bearing (9), described jack shaft cover plate (10) is fixedlyed connected with the end face of described lower box (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201245745U CN201003598Y (en) | 2007-06-26 | 2007-06-26 | Motorcycle speed transmission thrust augmentor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201245745U CN201003598Y (en) | 2007-06-26 | 2007-06-26 | Motorcycle speed transmission thrust augmentor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201003598Y true CN201003598Y (en) | 2008-01-09 |
Family
ID=39039135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201245745U Expired - Lifetime CN201003598Y (en) | 2007-06-26 | 2007-06-26 | Motorcycle speed transmission thrust augmentor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201003598Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122993A (en) * | 2012-11-09 | 2013-05-29 | 重庆隆旺机电有限责任公司 | Speed changer gear shift drive assembly |
-
2007
- 2007-06-26 CN CNU2007201245745U patent/CN201003598Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122993A (en) * | 2012-11-09 | 2013-05-29 | 重庆隆旺机电有限责任公司 | Speed changer gear shift drive assembly |
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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: 20080109 |
|
| CX01 | Expiry of patent term |