CN201129448Y - Allterrain vehicle self-locking type parking mechanism - Google Patents
Allterrain vehicle self-locking type parking mechanism Download PDFInfo
- Publication number
- CN201129448Y CN201129448Y CNU2007201919061U CN200720191906U CN201129448Y CN 201129448 Y CN201129448 Y CN 201129448Y CN U2007201919061 U CNU2007201919061 U CN U2007201919061U CN 200720191906 U CN200720191906 U CN 200720191906U CN 201129448 Y CN201129448 Y CN 201129448Y
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- CN
- China
- Prior art keywords
- gear
- shift
- shift fork
- parking
- main shaft
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- 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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Abstract
The utility model belongs to the technology of vehicle speed-change and parking brake, in particular to a self-locking type parking mechanism of an all-terrain vehicle, which comprises a shift drum, a shift fork shaft, a main shaft and an auxiliary shaft, a shifting gear is in rigid connection with the main shaft, and a shifting gear corresponding to the main shaft is in float connection with the auxiliary shaft, slide tracks are arranged on the shift drum, and the shift fork shaft is equipped with shift forks and shift fork springs which are engaged with the slide tracks. By rotating the shift drum, the self-locking type parking mechanism drives two shift forks to axially move respectively to enable a shift fork sliding sleeve to engage with two gears simultaneously, thereby realizing self-locking of driving and achieving the purpose of parking, and furthermore a shift and speed-change mechanism is fully utilized to realize the parking function without adding a complex auxiliary parking mechanism, thereby reducing complexity of production and operation, simultaneously reducing manufacturing cost, and being safe and reliable for parking.
Description
Technical field
The utility model relates to the technology of vehicle speed variation and stopping brake, particularly about the halting mechanism of all-terrain vehicle (AllTerrain Vehicle is hereinafter to be referred as ATV), belongs to mechanical design field.
Background technique
The ATV vehicle all has the parking halting mechanism usually, to guarantee stopping Shi Buhui because road gradient and from line slip when engine stoping operation and vehicle.Current halting mechanism mainly contains following several form:
1. braking halting mechanism.Utilize the vehicle braked dish, during parking one cover is clamped the lever that mechanism manually controls by pull-up, brake disc is clamped, reach the purpose that prevents that vehicle from sliding.This mechanism is identical with hand brake mechanism principle on the automobile, and its shortcoming is to set up a cover mechanism separately; Another shortcoming is when vehicle launch, unclamps the hand brake if the driver has forgotten, will cause the heavy wear of brake disc or binding clasp.
2. transmission shaft external force locking mechanism is as U. S. Patent (patent No. US6725962B1), U. S. Patent (patent No. US6691815B2) and Chinese patent (number of patent application 200510065919).This halting mechanism is normally installed a Parking gear on the change gear shaft in gearbox specially, by other the custom-designed mechanisms in the gear-box Parking gear is blocked during parking, reach the locking output shaft of gear-box, and then prevent the purpose that vehicle slides.Common motor generally all is to have only a pair of gear pair or chain wheel pair transferring power at a certain gear (selector gear control), by selector gear the operator is selected at the low speed that advances, the gears such as high speed, neutral gear, reversing, Parking that advance.At the Parking gear, the variable transmission mechanism quilt is locking securely, thereby all-terrain vehicle also can not be rotated by locking.
Above-mentioned Parking method all needs independent halting mechanism, makes car load or gearbox internal structure complexity, and part increases, and the cost of vehicle increases.
The model utility content
The purpose of this utility model is to provide a kind of all-terrain vehicle self-locking halting mechanism simple in structure that is installed on the CVT (continuously variable transmission) (CVT).
The utility model self-locking halting mechanism.Comprise shift drum, declutch shift shaft, main shaft, countershaft, the gear that it is characterized in that being rigidly connected on main shaft wheel, countershaft come-up be dynamically connected with main shaft on corresponding gear take turns, the shift drum is provided with slideway and slideway, and declutch shift shaft is provided with shift fork, shift fork spring, the shift fork that cooperates with slideway and the shift fork spring that cooperates with slideway.
Rigidly connected gear wheel is respectively reverse gear sprocket wheel, high gear and low speed gear on the described main shaft.
Described countershaft come-up be dynamically connected with main shaft on the gear of corresponding engagement take turns and be respectively reverse gear sprocket wheel, high gear, low speed gear.
Suit shift fork gear slide sleeve between reverse gear sprocket wheel and high gear, suit shift fork sliding sleeve between high gear and low speed gear.
Main shaft is connected by Transmitted chains with reverse gear sprocket wheel on the countershaft, and both turn to identical.
The all-terrain vehicle that the utility model provides (ATV) self-locking halting mechanism, its principle is: by being rigidly connected of the gear on the motion realization countershaft of shift drum and shift fork or sprocket wheel and countershaft, make the gear or the sprocket wheel of two groups of different drive ratios on engine mission internal speed-changing main shaft and the countershaft not have the work of skidding simultaneously, it is by selector gear the shift drum to be rotated that the gear of control different drive ratios or sprocket wheel are worked simultaneously, drive again 2 shift forks separately axial motion make the shift fork sliding sleeve hang up two gears simultaneously, realize the self-locking of transmission, reach the purpose of Parking.The utility model has made full use of shift and gear has been realized parking function, need not increase complicated auxiliary halting mechanism, has reduced the complexity of making and operating, and also reduced manufacture cost simultaneously, and Parking is safe and reliable.
Description of drawings
Fig. 1 is the side view that all-terrain vehicle (ATV) motor does not have left cap, and dotted line inside is divided into Parking and gear position among the figure.
Fig. 2 is the A-A sectional stretch-out view of Fig. 1
Parking and gear part side projection figure when Fig. 3 is neutral gear.
The partial enlarged view at B place among Fig. 2 when Fig. 4 is the Parking shelves.
Fig. 5 is shift drum slideway unfolded drawing.
Embodiment
The utility model is applicable to and uses CVT (continuously variable transmission) CVT) all-terrain vehicle (ATV), also claim beach buggy.This car is the four-wheel structure, is divided into two wheels of two wheels in front and back.
With reference to Fig. 1, Fig. 2, CVT (continuously variable transmission) (CVT) links to each other with engine crankshaft by centrifugal clutch.CVT driving disc 6 and driven disc 7, V-shape belt 8, Weight type clutch 5 (free wheel device) are arranged in the gearbox of motor, be used for changing the transmission gear of transmission direction (Fig. 1 dotted line is inner to be divided) when, comprise shift drum 3, declutch shift shaft 4, main shaft 1, countershaft 2, function such as this gear can be realized the advancing of vehicle, falls back, neutral gear, Parking.The power output of motor 25 is passed to CVT driving disc 6 by Weight type clutch 5, is connected by V-shape belt 8 between driving disc 6 and the driven disc 7, and velocity ratio changes by the friction radius of V-shape belt 8 with driving disc 6 and driven disc 7.The rotating shaft of CVT driven disc 7 (main shaft 1) is given gear as pto with transmission of power.The shift function of vehicle is by the control of the Joystick of selector gear, and Joystick has the bottom gear of advancing, the top gear that advances, neutral gear, reverse gear, five positions of parking Parking shelves.
With reference to Fig. 3, Fig. 4, reverse gear sprocket wheel 23, high gear 22 and low speed gear 21 are being rigidly connected on the input shaft of CVT (continuously variable transmission) (CVT) (main shaft 1).Countershaft 2 come-up be dynamically connected reverse gear sprocket wheel 13, shift fork gear slide sleeve 12, high gear 11, shift fork sliding sleeve 10 and low speed gear 9, suit shift fork gear slide sleeve 12 between countershaft 2 reverse gear sprocket wheels 13 and high gear 11 wherein, suit shift fork sliding sleeve 10 between high gear 11 and low speed gear 9, shift fork gear slide sleeve 12 and shift fork sliding sleeve 10 can endwisely slip on countershaft 2, but can not rotate relative to countershaft 2, the degrees of freedom that endwisely slips is only arranged; Reverse gear sprocket wheel 13, high gear 11 and low speed gear 9 only have a rotational freedom with respect to countershaft 2; Reverse gear sprocket wheel 23 on main shaft 1 and the countershaft 2 is connected by Transmitted chains with 13, turns to identical; Shift fork gear slide sleeve 12 arrives wheel with its subordinate's driving gear engagement and final transferring power all the time.Shift drum slideway 15 and 18 control shift fork 14 and 17 axial motions on declutch shift shaft 4, and drive shift fork gear slide sleeve 12 and shift fork sliding sleeve 10 axial motion on countershaft 2.Selector gear is provided with 5 gears, is respectively advance low speed G, the high speed of advancing F, neutral gear E, reversing D, Parking C.The shift fork slideway 15 and 18 that shift drum 3 is corresponding with selector gear also is designed to corresponding five positions, as shown in Figure 5.Selector gear rotates shift drum 3 by driving tooth sector 19 rotations, shift drum slideway 15 and 18 control shift fork 14 and 17 axial motions on declutch shift shaft 4, and drive shift fork gear slide sleeve 12 and shift fork sliding sleeve 10 axial motion on countershaft 2.
Vehicle is when forward gears, and shift fork gear slide sleeve 12 breaks away from reverse gear sprocket wheel 13, and shift fork sliding sleeve 10 engages with high gear 11 or low speed gear 9; Vehicle is when neutral gear, and shift fork gear slide sleeve 12 breaks away from reverse gear sprocket wheel 13, and shift fork sliding sleeve 10 breaks away from forward gear 11 and forward gear 9; Vehicle is when reverse gear, and shift fork gear slide sleeve 12 engages with reverse gear sprocket wheel 13, and shift fork sliding sleeve 10 breaks away from forward gear 11 and forward gear 9; Vehicle is when the Parking shelves, and shift fork gear slide sleeve 12 engages with reverse gear sprocket wheel 13, and shift fork sliding sleeve 10 engages with high gear 11 or low speed gear 9.
Behind vehicle parking and the engine misses, when the manipulator pushes the Joystick of selector gear the Parking gear and puts, shift fork gear slide sleeve 12 engages with reverse gear sprocket wheel 13 in the gear, and shift fork sliding sleeve 10 engages with high gear 11 or low speed gear 9 simultaneously.This moment is because countershaft 2 is accepted two velocity ratio transferring power simultaneously, in theory will be with two kinds of different rotational speed, this obviously is impossible, in fact these two kinds of rotating speeds mutually restriction and after making countershaft 2 rotate very little angle self-locking motionless, again because shift fork gear slide sleeve 12 arrives wheel with its subordinate's driving gear engagement and final transferring power all the time, thereby wheel can not rotate, and has so just reached the purpose that the restriction vehicle slides, and has realized parking function.
Structure on accompanying drawing and the accompanying drawing mainly is in order to explain and describe the utility model, is not in order to limit the utility model.Those skilled in the art can change and change example according to the above description.Interest field of the present utility model is determined by claims.
Claims (5)
1, a kind of all-terrain vehicle self-locking halting mechanism, comprise shift drum (3), declutch shift shaft (4), main shaft (1), countershaft (2), the gear that it is characterized in that being rigidly connected on the main shaft (1) wheel, countershaft (2) come-up be dynamically connected with main shaft on corresponding gear take turns, shift drum (3) is provided with slideway (18) and slideway (15), and declutch shift shaft (4) is provided with shift fork (17), shift fork spring (20), the shift fork (14) that cooperates with slideway (15) and the shift fork spring (16) that cooperates with slideway (18).
2, all-terrain vehicle self-locking halting mechanism according to claim 1 is characterized in that the upward rigidly connected gear wheel of main shaft (1) is respectively reverse gear sprocket wheel (23), high gear (22) and low speed gear (21).
3, all-terrain vehicle self-locking halting mechanism according to claim 1, it is characterized in that countershaft (2) come-up is dynamically connected with main shaft on corresponding gear take turns and be respectively reverse gear sprocket wheel (13), high gear (11), low speed gear (9).
4, all-terrain vehicle self-locking halting mechanism according to claim 3, it is characterized in that suit shift fork gear slide sleeve (12) between reverse gear sprocket wheel (13) and high gear (11), suit shift fork sliding sleeve (10) between high gear (11) and low speed gear (9).
5,, it is characterized in that the reverse gear sprocket wheel (23) of main shaft (1) is connected by Transmitted chains with reverse gear sprocket wheel (13) on the countershaft (2), turns to identical according to claim 2 or 3 described all-terrain vehicle self-locking halting mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201919061U CN201129448Y (en) | 2007-10-31 | 2007-10-31 | Allterrain vehicle self-locking type parking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201919061U CN201129448Y (en) | 2007-10-31 | 2007-10-31 | Allterrain vehicle self-locking type parking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129448Y true CN201129448Y (en) | 2008-10-08 |
Family
ID=40017292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201919061U Expired - Lifetime CN201129448Y (en) | 2007-10-31 | 2007-10-31 | Allterrain vehicle self-locking type parking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129448Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763535A (en) * | 2016-12-28 | 2017-05-31 | 綦江齿轮传动有限公司 | A kind of automotive transmission |
| CN112368164A (en) * | 2018-06-29 | 2021-02-12 | Gkn汽车有限公司 | Transmission device with parking lock and electric drive device with transmission device |
| CN113417973A (en) * | 2021-06-30 | 2021-09-21 | 王飞 | Speed change mechanism |
-
2007
- 2007-10-31 CN CNU2007201919061U patent/CN201129448Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763535A (en) * | 2016-12-28 | 2017-05-31 | 綦江齿轮传动有限公司 | A kind of automotive transmission |
| CN112368164A (en) * | 2018-06-29 | 2021-02-12 | Gkn汽车有限公司 | Transmission device with parking lock and electric drive device with transmission device |
| CN113417973A (en) * | 2021-06-30 | 2021-09-21 | 王飞 | Speed change mechanism |
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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: 20081008 |
|
| CX01 | Expiry of patent term |