CN2772877Y - Power transmission system of high-performance cross-country vehicle with four-wheels - Google Patents
Power transmission system of high-performance cross-country vehicle with four-wheels Download PDFInfo
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- CN2772877Y CN2772877Y CN 200420057643 CN200420057643U CN2772877Y CN 2772877 Y CN2772877 Y CN 2772877Y CN 200420057643 CN200420057643 CN 200420057643 CN 200420057643 U CN200420057643 U CN 200420057643U CN 2772877 Y CN2772877 Y CN 2772877Y
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Abstract
The utility model relates to a power transmission system of cross-country vehicles with four-wheels, which is composed of a speed variator, a transfer differential mechanism, a cross driving mechanism and a driver, wherein the transfer differential mechanism and the driver are divided into two independent cases. The utility model enables vehicles to have good cross country capability under the conditions that the roads are bumpy and no roads are available. Even when two vehicle wheels of one opposite angle of the vehicles leave land, two vehicle wheels of the other opposite angle, which touch the land can also transfer the whole driving force of the vehicles. In addition, drivers do not need to carry out extra operation during the function realizing process, and meanwhile, the vehicles can be steered and run on adverse road surfaces.
Description
Technical field
The utility model relates to a kind of power driven driving system of four-wheel overland vehicle.
Background technology
The differential system of orthodox car is to arrange box of tricks between two wheels on the same axle.Its reason is: last two wheel velocities of same axle differ greatly during motor turning, and inter-wheel differential must be installed.To the all-wheel drive overland vehicle, two wheel velocity sums when motor turning on the not same axle differ greatly, and interaxle differential must be installed.When the tradition 4Wdvehicle travelled in rugged and rough location, if a tyre skidding, the adhesive ability of wheel was reduced to kinetic force of friction; Because the effect of differential between shaft space difference speed and wheel, the propulsive effort of other three wheels and the kinetic force of friction the same big (little more many) of slip wheel than normal value, vehicle just can not advance.In this case, if use differential locking-device between between centers, wheel simultaneously, all wheels all with direct rigidly connected driving of change-speed box, vehicle just can advance; But this moment, all vehicle wheel rotational speeds were synchronous, and the possibility that has parasitic horsepower is arranged, and vehicle can not turn to simultaneously.
The tradition overland vehicle is in that rugged ground is up when sailing, if a wheel is liftoff, because vehicle's center of gravity is near two diagonal angle wheel line intersection points, another vertical antagonistic force in wheel ground of relative angle reduces with it, and adhesive ability is also along with reducing; And a pair of wheel at another diagonal angle bears big weight of vehicle, adhesive ability is very big, because the effect of differential locking-device, big two the diagonal angle wheels of this adhesive ability can only constant speed rotate, and actually because landform is different require two incomplete constant speed of wheel, therefore will cause parasitic horsepower between this a pair of wheel, cause transmission device stress to strengthen, mechanical efficiency reduces, and the degree of utilization of traction reduces, on the contrary this location of impassabitity; Simultaneously, turning at all of vehicle can not be realized in this case.Therefore the high efficiency that will solve complicated location travels, and must arrange box of tricks between the diagonal angle wheel.The vehicle of arranging box of tricks between the diagonal angle wheel is by complicated location the time, box of tricks between the diagonal angle wheel does not need locked, because the weight of vehicle is born by two wheels that land basically, one in these two wheels can temporarily skid, but still keep very big adhesive ability, the particularly important is this to there not being parasitic horsepower between wheel, adhesive ability can be fully used; As long as vehicle has bigger power, these power can obtain sufficient utilization, the overall driving efficiency height of vehicle; Therefore can reduce the power of vehicle and pass through same complicated location.
The utility model content
Disadvantage in view of traditional overland vehicle transmission, the utility model adopts new power drive system: the common box of tricks in the messenger chain is moved forward in part-time case, and implementing differentia transmission between the diagonal angle wheel: adopt the power through-coupling between two groups of diagonal angle wheel power transmission; The main gear device is after box of tricks, and each main gear device is only to a wheel transmission; Unnecessary layout diff between two coaxial wheels no longer includes direct power transmission chain transitive relation between them.
On flat road, turn to when travelling, automobile is around instantaneous rotation, because the linear velocity sum of two groups of diagonal angle wheels of vehicle is close substantially, on movement relation, need between two groups of diagonal angle wheel transmissions, not arrange diff yet, can use the output gear of change-speed box simultaneously to two groups of diagonal angle wheel direct drives.Owing between every group of diagonal angle wheel, be furnished with box of tricks, promptly can differential between the wheel of diagonal angle wheel, the speed that can make the diagonal angle wheel is different and realize turning to of vehicle; Also can keep above-mentioned relation on abominable road surface, although the fluctuation of the vertical reaction of tire is big, adhesive ability is random variation, and wheel can trackslip the part, still keeps above-mentioned movement relation and realizes turning to and travel.
Because two pairs of boxs of tricks of gearbox output power transmission simultaneously, power is delivered to the size of power on each diff by the resistance automatic compensation of these two difies.When vehicle travels on rugged and rough ground and during the unsettled idle running of wheel, because vehicle's center of gravity is near two diagonal angle wheel line intersection points, so reduce thereupon with another wheel ground normal force of liftoff wheel relative angle, cause this diagonal angle wheel to lose adhesive ability, by application force and antagonistic force equal principle, the outputting power of change-speed box also reduces this propulsive effort to wheel thereupon automatically; In like manner, the a pair of adhesion of wheels that lands simultaneously is big, the outputting power of change-speed box also strengthens this propulsive effort to wheel thereupon automatically, this process is fully by the mechanical characteristic of machinery own, do not need electronic control system, therefore present technique can reach and the cooresponding off-road capability of electronic control technology, and the structural reliability decline that raises the cost.
The diff that the utility model adopts reduces because rotating speed increases transferring power, so the reliability raising, and with low cost, implements easily; Each wheel is only born the load of half the time by an independently main gear device driving in the load time history of cross-country condition, the life-span of main gear device has improved.Therefore generally speaking, this technology is to inherit and developed the advantage of traditional scheme, and is easy to implement, good reliability, and cost is low; And performance obviously surpasses the off-road capability of conventional truck.
The utility model can make vehicle have excellent cross country power under rugged no travel permit spare, even two wheels at vehicle diagonal angle are under the liftoff condition, the a pair of wheel that lands also can transmit whole propulsive efforts of automobile automatically, and realizes that the process of this function does not need chaufeur to carry out any operation bidirectional; Simultaneously, this car can be realized turning to travelling on abominable road surface.Even because landform difference, if any one tyre skidding, the distribution of vehicle automatic compensation propulsive effort still can be advanced, and between all non-slip wheel, can not cause parasitic horsepower yet, therefore vehicle has used this technology, be easy to by complicated location, this is impossible realize on conventional truck.
The utility model is applicable to the independent suspension vehicle, also is applicable to the dependent suspension vehicle.Adopt the vehicle of present technique can on highway, realize various travelling, as run at high speed, high speed steering, low speed tight turn radius turn to etc., all can not produce movement interference such as parasitic horsepower circulates.
The vehicle of use present technique must use the tire of same model, notes the air pressure that maintenance is suitable, and carries out interchanging of tires on time, makes wear on tyres even.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing 1 is a structure principle chart of the present utility model.
In Fig. 1: 1, transmission output shaft; 2, transmission shaft; 3, input shaft; 4, gear; 5, driven wheel; 6, driven wheel; 7, diff; 8, diff; 9, axle; 10, axle; 11, axle; 12, axle; 13, intersection transmission device; 14, axle; 15, axle; 16, idle pulley group.
The specific embodiment
Transfer box of tricks and main gear device are separated into two independently casings in Fig. 1.By transmission output shaft (1) through transmission shaft (2) with the input shaft (3) of transmission of power to the transfer box of tricks, with driven wheel (5) and (6) of transmission of torque to diff arranged side by side, gear (4) depends on the resisting moment size of gear (5), (6) to the size of gear (5), (6) transmitting torque through gear (4).Diff (7) transmits next torque mean allocation to axle (9) and axle (10) with gear (5), and the torque of axle (9) is arrived off front wheel through main converyer with transmission of power; The torque of axle (10) is arrived left rear wheel through intersection transmission device (13) and main gear device with transmission of power.Like this power transmission chain that constitutes by diff (7) be right front a group of left rear wheel of taking turns to angle transmission, can differential between these two wheels.In like manner, the power transmission chain that is made of diff (8) is left front to take turns to a group of off hind wheel to angle transmission, also can differential between these two wheels.Two groups of diagonal angle wheel velocity sums equate that the rotating speed of gear (5) and gear (6) also equates thereupon, does not therefore need to arrange diff between gear (5) and (6).Diff (7) and diff (8) are arranged in before four main gear devices, and two output shafts of each diff link to each other with the main gear device.The transfer differential gear is made up of with the transmission device (13) that intersects that is positioned at diff one side two difies arranged side by side (7) and diff (8).The transmission device (13) that intersects is made up of the cylindrical wheel group, and it is realized the intersection transmission of power by one group of coaxial idle pulley group (16).
When vehicle ' in rugged and rough location, suppose that off front wheel is liftoff because vehicle's center of gravity is near the intersection point of diagonal angle wheel line, then the vertical antagonistic force in the ground of left rear wheel reduces, this moment, the resisting moment on diff (5) reduced; On the contrary, the vertical antagonistic force in the ground of the near front wheel and off hind wheel strengthens and adhesive ability also strengthens, and can transmit bigger torque on diff (6); To can torque transmitted be distributed automatically according to gear (5), (6) to gear (4) by the change-speed box transferring power, obviously the torque of the distribution of gear (5) is little, and the torque that gear (6) distributes is big; This can move on vehicle.
Claims (4)
1, the power driven driving system of High Performance four-wheel overland vehicle is characterized in that two difies arranged side by side (7) and diff (8) are arranged in before four main gear devices, and two output shafts of each diff with intersect the main gear device of transmission and link to each other.
2, the power driven driving system of High Performance four-wheel overland vehicle according to claim 1 is characterized in that the transfer differential gear is made up of with the transmission device (13) that intersects that is positioned at diff one side two difies arranged side by side (7) and diff (8).
3, the power driven driving system of High Performance four-wheel overland vehicle according to claim 1, it is characterized in that power passes through the end outfit intersection transmission device (13) of diff arranged side by side (7) and diff (8), to one group of wheel at vehicle diagonal angle, diff is directly by the output shaft gear transmission of change-speed box side by side with the power transmission of each diff for it.
4, the power driven driving system of High Performance four-wheel overland vehicle according to claim 1, the transmission device (13) that it is characterized in that intersecting is made up of the cylindrical wheel group, and it is realized the intersection transmission of power by one group of coaxial idle pulley group (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420057643 CN2772877Y (en) | 2004-12-13 | 2004-12-13 | Power transmission system of high-performance cross-country vehicle with four-wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420057643 CN2772877Y (en) | 2004-12-13 | 2004-12-13 | Power transmission system of high-performance cross-country vehicle with four-wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2772877Y true CN2772877Y (en) | 2006-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420057643 Expired - Fee Related CN2772877Y (en) | 2004-12-13 | 2004-12-13 | Power transmission system of high-performance cross-country vehicle with four-wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2772877Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427557A (en) * | 2015-08-05 | 2017-02-22 | 武汉科荣车业有限公司 | Driving chassis of four-wheel driving automobile |
| CN106864262A (en) * | 2017-03-09 | 2017-06-20 | 哈尔滨蒙鹰科技有限公司 | The drive method of 8 × 8 offroad vehicle transmission devices |
-
2004
- 2004-12-13 CN CN 200420057643 patent/CN2772877Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427557A (en) * | 2015-08-05 | 2017-02-22 | 武汉科荣车业有限公司 | Driving chassis of four-wheel driving automobile |
| CN106864262A (en) * | 2017-03-09 | 2017-06-20 | 哈尔滨蒙鹰科技有限公司 | The drive method of 8 × 8 offroad vehicle transmission devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060419 Termination date: 20131213 |