CN2839100Y - Gear-reversing device for three-wheel or four-wheel motorcycle - Google Patents
Gear-reversing device for three-wheel or four-wheel motorcycle Download PDFInfo
- Publication number
- CN2839100Y CN2839100Y CN 200520010244 CN200520010244U CN2839100Y CN 2839100 Y CN2839100 Y CN 2839100Y CN 200520010244 CN200520010244 CN 200520010244 CN 200520010244 U CN200520010244 U CN 200520010244U CN 2839100 Y CN2839100 Y CN 2839100Y
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- gear
- reverse gear
- shift fork
- wheel
- 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 - Fee Related
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Abstract
The utility model relates to a gear-reversing device for a three-wheel motorcycle or a four-wheel motorcycle. A gear-advancing bevel gear (2) and a gear-reversing bevel gear (5) are actively sheathed on an output shaft (1) of a spline. A clutch (4) is arranged on the output shaft (1) of the spline through a spline sleeve and is positioned between the gear-advancing bevel gear (2) and the gear-reversing bevel gear (5). The gear-advancing bevel gear (2) and the gear-reversing bevel gear (5) are all engaged with a driving bevel gear. One end of a shifting fork arm (17) is fixedly sheathed on a gear-shifting shaft (9), and the other end is hinged with a shifting fork (8). The shifting fork (8) is limited in a radial groove of the clutch (4). The utility model gets rid of a shifting fork shaft and uses the gear-shifting shaft (9) to directly drive the shifting fork arm (17) to do the rotary motion. The utility model has the advantages of low position of the gear-shifting shaft (9), small rotating angle, convenient and comfortable operation, compact structure, small size, few parts and low cost.
Description
Technical field
The utility model relates to the self-propelled vehicle gear reversing device, specifically, relates to a kind of reverse gear that is used for three-wheel or four-wheel motor cycle.
Background technology
Drive for convenience, existing three-wheel or four-wheel motor cycle are equipped with reverse gear usually, and navigating mate need not be got off, and directly operate reverse gear control mechanism onboard and just can realize reversing.At present the mechanical control mechanism of reverse gear has hand to pull with pin to step on two kinds, making steering unit drive the gearshift axle with hand or pin rotates, the gearshift axle drives the declutch shift shaft moving linearly, declutch shift shaft is stirred clutch part sway and suitable shelves finishing bevel gear cuter or the engagement of reverse gear finishing bevel gear cuter on output shaft by the shift fork on it again, thereby the realization vehicle advances or retreats.There is following deficiency in the reverse gear of this structure: 1, owing to be provided with declutch shift shaft between shift fork and gearshift axle, distance between gearshift axle and the output shaft is bigger, makes the position of gearshift axle higher, when adopting when tramping with one's feet mode, the position of stretcher is higher relatively, inconvenient operation; 2, because the shift fork moving linearly, the rotational angle that its rectilinear path is transformed into stretcher is big (greater than 62 °), and the rotatable angle greater than people's ankle joint has increased operation easier; 3, complex structure, used part is many, and the gearshift axle can not be directly installed on the reverse gear casing cost height.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of compact conformation is provided, the reverse gear that is used for three-wheel or four-wheel motor cycle easy to operate, that cost is low.
For achieving the above object, the technical solution adopted in the utility model is: a kind of reverse gear that is used for three-wheel or four-wheel motor cycle, comprise shift shaft, the spline output shaft, drive bevel gear, along the shelves finishing bevel gear cuter, the reverse gear finishing bevel gear cuter, the shift fork arm, clutch part and casing, be enclosed within on the spline output shaft along shelves finishing bevel gear cuter and reverse gear finishing bevel gear cuter sky, clutch part by spline package on the spline output shaft and between along shelves finishing bevel gear cuter and reverse gear finishing bevel gear cuter, all mesh along shelves finishing bevel gear cuter and reverse gear finishing bevel gear cuter with drive bevel gear, one end of shift fork arm is solidly set on the shift shaft, the other end is hinged with shift fork, and the shift fork lower end is spacing in the radial groove of clutch part.
A link side of end of above-mentioned shift fork arm and shift shaft is provided with locating dowel pin, and an end of this locating dowel pin matches with pit hole on the shift fork arm, the other end be arranged in steel bushing and with steel bushing in the stage clip butt, described steel bushing is installed on the casing.
Above-mentioned shift fork arm is respectively equipped with on the two sides of rotation direction along shelves positive stop lug boss and reverse gear positive stop lug boss.
Above-mentioned shift fork is hinged on the shift fork arm by pivot pin, and the spacing part in the clutch part radial groove in lower end is an arc fork structure.
The utility model is compared with traditional reverse gear, removed declutch shift shaft, one end of shift fork arm directly is solidly set on the shift shaft, the other end links by shift fork and clutch part, thereby shift shaft directly drives the axial line rotation of shift fork arm around shift shaft when rotating, the other end of shift fork arm is stirred clutch part sway on the spline output shaft by shift fork, the angle that the shift fork arm rotates during gear shift is exactly the angle that shift shaft need rotate, the distance of shift shaft and spline output shaft is reduced, and, turning over identical chord length because the radius of gyration of shift fork arm is bigger, angle is also less, thereby the rotational angle that makes shift shaft also reduces (being about 31 °), when adopting when tramping with one's feet mode, the position of stretcher reduces, and the rotational angle of stretcher also reduces greatly, make navigating mate easy to operate, feel comfortable, because the reduction of shift shaft position, thereby can be directly installed on the reverse gear casing, thereby reduce the volume of whole reverse gear, cost-cutting.
The beneficial effects of the utility model are: easy to operate, comfortable, and compact conformation, volume is little, and used part is few, low cost of manufacture.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 1;
Fig. 4 is the B-B cutaway view of Fig. 1.
Among the figure: spline output shaft 1 is along the suitable shelves of grade finishing bevel gear cuter 2 drive bevel gear 3 clutch parts 4 radial groove 4a reverse gear finishing bevel gear cuters 5 pivot pins 6 collars 7 shift forks 8 shift shafts 9 packing rings 10 O-ring seals 11 linings 12 linings 13 O-ring seals 14 packing rings 15 screws 16 shift fork arms 17 pit hole 17a positive stop lug boss 17b reverse gear positive stop lug boss 17c locating dowel pin 18 steel bushings 19 stage clips 20 bearing cap shims 21 stretchers 22 casings 23 spline housings 24
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figures 1 to 4, spline output shaft 1 by bearing installation on casing 23, one of spline output shaft 1 is stretched out bearing cap shim 21, in casing 23, be enclosed within on the spline output shaft 1 with reverse gear finishing bevel gear cuter 5 skies along shelves finishing bevel gear cuter 2, clutch part 4 by spline package on the spline output shaft 1 and between along shelves finishing bevel gear cuter 2 and reverse gear finishing bevel gear cuter 5, clutch part 4 can horizontally slip on spline output shaft 1, all mesh along shelves finishing bevel gear cuter 2 and reverse gear finishing bevel gear cuter 5 with drive bevel gear 3, one end of shift fork arm 17 is solidly set on the shift shaft 9 by the screw 16 of spline and radially setting, the other end is hinged with shift fork 8 by pivot pin 6, shift fork 8 lower ends are spacing in the radial groove 4a of clutch part 4, shift fork 8 can rotate around pivot pin 6 under shift fork arm 17 drives relatively, horizontally slips as straight line on spline output shaft 1 thereby stir clutch part 4.
Fig. 3 illustrates a link side of end of shift fork arm 17 and shift shaft 9 and is provided with locating dowel pin 18, one end of this locating dowel pin 18 matches with pit hole 17a on the shift fork arm 17, two pit hole 17a are arranged on the shift fork arm 17,2 spacing points of corresponding shift fork arm 17 rotational travel of difference, the other end be arranged in steel bushing 19 and with stage clip 20 butts of 19 li of steel bushings, steel bushing 19 is installed on the casing 23, after shift fork arm 17 rotate in place, locating dowel pin 18 enters one of them pit hole among two pit hole 17a respectively, prevents the backward rotation of shift fork arm 17.Thereby reach positioning action.
Fig. 1 and Fig. 3 illustrate shift fork arm 17 and are respectively equipped with on the two sides of rotation direction along shelves positive stop lug boss 17b and reverse gear positive stop lug boss 17c; excessive to prevent shift fork arm 17 rotational angle under the drive of shift shaft 9; surpass range; avoid shift fork 8 that clutch part 4 is compressed; when clutch part 4 rotation and produce undue wear, shift fork 8, clutch part 4 are played a protective role thereby reach.The spacing part in clutch part 4 radial groove 4a in shift fork 8 lower ends is an arc fork structure, with the contact surface of increase with clutch part 4, prevents that shift fork 8 landings in use from going out the radial groove 4a of clutch part 4.
It is the inside and outside invoice serration tooth that matches that Fig. 3, Fig. 4 also illustrate between the interface along shelves finishing bevel gear cuter 2 and reverse gear finishing bevel gear cuter 5 and clutch part 4.Shift shaft 9 is directly installed on the casing 23 by two linings 12 and 13, the outside of lining 12 is provided with O-ring seals 11 and packing ring 10, the outside of lining 13 is provided with O-ring seals 14 and packing ring 15, and the outer end of shift shaft 9 links by spline housing 24 and stretcher 22, and the outside of spline housing 24 is provided with collar 7.Certainly, the steering unit of shift shaft 9 outer ends also can adopt hand to pull mode, and promptly shift shaft 9 outer ends connect the reverse gear torque arm by Transmission.
Principle of work: when the needs reverse gear, stretcher 22 tramps with one's feet, making stretcher 22 drive shift shaft 9 rotates, shift shaft 9 drives shift fork arm 17 and rotates around the axial line of shift shaft 9, the other end of shift fork arm 17 is stirred clutch part 4 by slide block 8 and is slided to reverse gear finishing bevel gear cuter 5 directions on spline output shaft 1, locating dowel pin 18 withdraws from from one of them pit hole 17a simultaneously, when sliding, clutch part 4 puts in place and 5 engagements of reverse gear finishing bevel gear cuter are after shift fork arm 17 rotate in place, locating dowel pin 18 reenters among another pit hole 17a, shift fork arm 17 is positioned, so power is through drive bevel gear 3, reverse gear finishing bevel gear cuter 5, clutch part 4 is delivered on the spline output shaft 1, and spline output shaft 1 reverses and realizes reversing.The gear-change operation that will recover to advance after the reversing is opposite with above-mentioned action.
Claims (6)
1, a kind of reverse gear that is used for three-wheel or four-wheel motor cycle, comprise shift shaft (9), spline output shaft (1), drive bevel gear (3), along shelves finishing bevel gear cuter (2), reverse gear finishing bevel gear cuter (5), shift fork arm (17), clutch part (4) and casing (23), be enclosed within on the spline output shaft (1) along shelves finishing bevel gear cuters (2) and reverse gear finishing bevel gear cuter (5) sky, clutch part (4) by spline package between spline output shaft (1) is gone up and is positioned at along shelves finishing bevel gear cuter (2) and reverse gear finishing bevel gear cuter (5), all mesh along shelves finishing bevel gear cuter (2) and reverse gear finishing bevel gear cuter (5) with drive bevel gear (3), it is characterized in that: an end of described shift fork arm (17) is solidly set on the shift shaft (9), the other end is hinged with shift fork (8), in the spacing radial groove in clutch part (4) in shift fork (8) lower end (4a).
2, a kind of reverse gear that is used for three-wheel or four-wheel motor cycle according to claim 1, it is characterized in that: a link side of end of described shift fork arm (17) and shift shaft (9) is provided with locating dowel pin (18), one end of this locating dowel pin (18) matches with pit hole (17a) on the shift fork arm (17), the other end be arranged in steel bushing (19) and with stage clip (20) butt of steel bushing (19) lining, described steel bushing (19) is installed on the casing (23).
3, a kind of reverse gear that is used for three-wheel or four-wheel motor cycle according to claim 1 and 2 is characterized in that: described shift fork arm (17) is respectively equipped with on the two sides of rotation direction along shelves positive stop lug boss (17b) and reverse gear positive stop lug boss (17c).
4, a kind of reverse gear that is used for three-wheel or four-wheel motor cycle according to claim 3, it is characterized in that: described shift fork (8) is hinged on the shift fork arm (17) by pivot pin (6), and the spacing part in clutch part (4) radial groove (4a) in lower end is an arc fork structure.
5, a kind of reverse gear that is used for three-wheel or four-wheel motor cycle according to claim 3 is characterized in that: between the described interface along shelves finishing bevel gear cuter (2) and reverse gear finishing bevel gear cuter (5) and clutch part (4) is the inside and outside invoice serration tooth that matches.
6, a kind of reverse gear that is used for three-wheel or four-wheel motor cycle according to claim 3, it is characterized in that: described shift shaft (9) is directly installed on the casing (23) by two linings (12,13), and the outer end of shift shaft (9) links by spline housing (24) and stretcher (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010244 CN2839100Y (en) | 2005-11-03 | 2005-11-03 | Gear-reversing device for three-wheel or four-wheel motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010244 CN2839100Y (en) | 2005-11-03 | 2005-11-03 | Gear-reversing device for three-wheel or four-wheel motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2839100Y true CN2839100Y (en) | 2006-11-22 |
Family
ID=37427085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010244 Expired - Fee Related CN2839100Y (en) | 2005-11-03 | 2005-11-03 | Gear-reversing device for three-wheel or four-wheel motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2839100Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387152A (en) * | 2015-12-09 | 2016-03-09 | 重庆先友科技开发有限公司 | Reverse gear assembly with anti-gear-skipping mechanism |
-
2005
- 2005-11-03 CN CN 200520010244 patent/CN2839100Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387152A (en) * | 2015-12-09 | 2016-03-09 | 重庆先友科技开发有限公司 | Reverse gear assembly with anti-gear-skipping mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |