CN103465962A - Vehicle wheel track adjusting linkage turning mechanism - Google Patents
Vehicle wheel track adjusting linkage turning mechanism Download PDFInfo
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- CN103465962A CN103465962A CN2013103952505A CN201310395250A CN103465962A CN 103465962 A CN103465962 A CN 103465962A CN 2013103952505 A CN2013103952505 A CN 2013103952505A CN 201310395250 A CN201310395250 A CN 201310395250A CN 103465962 A CN103465962 A CN 103465962A
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Abstract
The invention relates to the field of vehicle traveling and discloses a vehicle wheel track adjusting linkage turning mechanism. The vehicle wheel track adjusting linkage turning mechanism comprises a frame, a drive rod, a turning slideway, a turning rod, a front and rear connecting rods in left and right symmetry, a guide rod, a rotary arm, a turning section and wheels. By a linkage turning isosceles trapezoid ABFE along with wheel track adjusting, traveling turning of a vehicle can be adapted to during wheel track adjusting and optional wheel track is set. The invention further provides a vehicle wheel track stepless adjusting mechanism which is characterized in that a wheel track adjusting in the vehicle wheel track adjusting linkage turning mechanism is reserved and a linkage turning part is omitted. A group of wheel track adjusting linkage turning mechanisms and a group of vehicle wheel track stepless adjusting mechanisms form a front wheel turning chassis adaptive to wheel track adjusting vehicles. Two groups of same wheel track adjusting linkage turning mechanisms form a four-wheel turning chassis adaptive to wheel track adjusting vehicles, and crop mechanical operation requirements of different line spacing can be satisfied.
Description
Technical field
The present invention relates to a kind of car gage and adjust linkage steering mechanism, belong to the vehicle chassis technical field, particularly the Vehicular turn technical scope under vehicle chassis flexible wheel base condition.
Background technology
China is a large agricultural country vast in territory, and the proportion of crop planting scope is wide, and southern and northern proportion of crop planting kind is many and difference is large, and the line-spacing of different crops is generally different, and the line-spacing of crops zones of different of the same race or Different Ways of Planting is general not identical yet.In the growth period of crops, the field management machinery equalization such as weeding, spray medicine and fertilising require working truck to walk along the crops line-spacing, therefore require the wheelspan of agricultural vehicle chassis to change and regulated with the crops line-spacing, need the significantly agricultural vehicle chassis of adjusting knurl distance.After the wheelspan of agricultural vehicle chassis changes, steering hardware also needs to adapt to the variation of wheelspan.At present, the steering hardware on domestic trac., farm power chassis is generally the Ackermam Ackerman steering mechanism, can not meet in the adjustable chassis of wheelspan and turn to mechanism and wheelspan to regulate the requirement adapted.And in existing public technology, have multiple steering hardware can adapt to the adjusting of wheelspan, application number is " 201110000166.X ", name is called the pull that the patent of invention of " flexible wheel base becomes ground gap front steering device " moves castellated shaft and right interlock castellated shaft by the Left-wing Federation and carrys out the adjusting knurl distance, bearing circle adapts to the variation of relative position between bearing circle and wheel by the steering power transfer device, can meet the requirement that turns on the adjustable chassis of wheelspan.Current research both at home and abroad, application concentrate on front-wheel independent steering and four-wheel independent steering, adopt hydraulic-driven, servocontrol steered wheel to meet the Ackermann steering condition, or servomotor control steered wheel meets the Ackermann steering condition; The self-propelled spraying machine that external model is AIRONE2000, adopt hydraulic-driven, servocontrol four-wheel independent steering, can adapt to wheelspan and change the Turning travel in forward and backward and wheelspan adjustment process.
Summary of the invention
The present invention seeks to provide a kind of car gage to adjust linkage steering mechanism, be applied to the steering swivel system of capable of regulating wheelspan vehicle, the motion of the relative vehicle central plane symmetry of left and right wheel, realize the stepless adjustment of wheelspan, in the wheelspan adjustment process and set up after wheelspan the normal direction of rotation that all can adapt to vehicle and travel.
In order to reach the technical scheme that purpose of the present invention takes, comprise: be provided with longitudinal slipway 151 on vehicle frame 15, right sideslipway 152 and left sideslipway 153, right sideslipway 152 and left sideslipway 153 be axis of movement vertical with the axis of movement of longitudinal slipway 151 and be arranged symmetrically with altogether, right front connecting rod 4 is rotationally connected with the C point with right guide rod 8, right guide rod 8 moves and connects by right sideslipway 152 constraints with vehicle frame 15, the other end of right guide rod 8 and right steering arm 10 are rotationally connected with the A point, right back connecting rod 6 is rotationally connected with the B point with the other end of right steering arm 10, getting right steering arm 10 long is L
10, right guide rod 8 is long is L
8, craspedodrome base angle g
0, right steering arm 10 is g with the angle of right guide rod 8
0the time wheel straight-line travelling, right steering joint 12 and 10 one-tenth 180 °-g of right steering arm
0angle is connected, jointly rotates around the A point, and right steering joint 12 connects right wheel 14 and controls its direction, and right front connecting rod 4 is isometric with right back connecting rod 6, left front connecting rod 3 is rotationally connected with the G point with left guide rod 7, left guide rod 7 moves and connects by left sideslipway 153 constraints with vehicle frame 15, the other end of left guide rod 7 and left steering arm 9 are rotationally connected with the E point, left back connecting rod 5 is rotationally connected with the F point with the other end of left steering arm 9, left steering joint 11 and 9 one-tenth 180 °-g of left steering arm
0angle is connected, jointly rotates around the E point, left steering joint 11 connects left wheel 13 and controls its direction, left front connecting rod 3 is isometric with right front connecting rod 4, left guide rod 7 is isometric with right guide rod 8, left steering arm 9 is isometric with right steering arm 10, left back connecting rod 5 is isometric with right back connecting rod 6, and it is 12 isometric that left steering joint 11 and right steering save, be provided with on driving lever 1 and turn to slideway 101, driving lever 1 front end is rotationally connected with the N point with the other end of right front connecting rod 4, left front connecting rod 3 respectively, point of connection N with turn to slideway 101 axis of movements apart from K=L
10* sing
0, driving lever 1 moves and connects by longitudinal slipway 151 constraints with vehicle frame 15, and deflecting bar 2 is long is L
2=2 (L
8-L
10* cosg
0), deflecting bar 2 two-end-points are rotationally connected with D, H point with the other end of right back connecting rod 6, left back connecting rod 5 respectively, deflecting bar 2 moves and connects by turning to slideway 101 constraints with driving lever 1, forms the craspedodrome Left-wing Federation and meets parallelogram FGNH and right connection parallelogram BCND, driving lever 1 moves relative to the longitudinal slipway 151 of vehicle frame 15, the wheelspan of left and right wheel changes, deflecting bar 2 moves relative to the slideway 101 that turns to of driving lever 1, interlock isosceles steering trapezium ABFE two base angles are unequal, realize turning to of left and right wheel, when deflecting bar 2 mid points are positioned at driving lever 1 axis, interlock isosceles steering trapezium ABFE two base angles equate, left and right wheel straight-line travelling.Form car gage of the present invention and adjust linkage steering mechanism (as shown in Figure 1).
External force drives driving lever 1 to move relative to the longitudinal slipway 151 of vehicle frame 15, and the wheelspan of left and right wheel changes, when the longitudinal slipway 151 of driving lever 1 relative vehicle frame 15 move forward, when large apart from change, the wheelspan of left and right wheel reduces (as shown in Figure 2); When driving lever 1, relative to the longitudinal slipway 151 of vehicle frame 15, move backward, distance is while diminishing, the wheelspan of left and right wheel increases (as shown in Figure 3); The relative driving lever 1 axis symmetric motion of left and right wheel, the stepless adjustment of wheelspan, be maximum wheelspan when right front connecting rod 4 during with right guide rod 8 conllinear, meet parallelogram FGNH by the Left-wing Federation under wheel straight-line travelling state and right connection parallelogram BCND keeps the wheelspan adjustment for the not impact of left and right wheel turning angle.For in the wheelspan adjustment process and after setting up any wheelspan, external force drives deflecting bar 2 to move relative to the slideway 101 that turns to of driving lever 1, and interlock isosceles steering trapezium ABFE two base angles are unequal, realize turning to of left and right wheel; Turn to when deflecting bar 2 relative driving levers 1 that slideway 101 moves right, f
1<f
0the time, left and right wheel turnon left (as shown in Figure 4); Turn to when deflecting bar 2 relative driving levers 1 that slideway 101 is moved to the left, f
2f
0the time, left and right wheel right-hand corner (as shown in Figure 5); When deflecting bar 2 mid points are positioned on driving lever 1 axis, apart from f
0the time, interlock isosceles steering trapezium ABFE two base angles equate, left and right wheel straight-line travelling; Turn to and adjust for the not impact of left and right Wheel centre distance.
Above-mentioned car gage is adjusted in linkage steering mechanism, when interlock isosceles steering trapezium ABFE two base angles equate, and left and right wheel straight-line travelling, car gage is adjusted linkage steering mechanism left-half driving lever 1 axis symmetry relative to right half part.
It is double freedom mechanism that above-mentioned car gage is adjusted linkage steering mechanism, and the wheelspan adjustment turns to and can also can carry out by complete independently simultaneously with travelling, so in the wheelspan adjustment process and set up after any wheelspan and all can adapt to travelling of vehicle and turn to.
Above-mentioned car gage is adjusted in linkage steering mechanism, and driving lever 1 moves relative to the longitudinal slipway 151 of vehicle frame 15, and the wheelspan of left and right wheel changes, and the long interlock in the upper and lower end of interlock isosceles steering trapezium ABFE changes; When longitudinal slipway 151 distance of driving lever 1 relative vehicle frame 15 is S
0the time, the wheelspan of left and right wheel is h
0, now stub is apart from m
0, interlock isosceles steering trapezium ABFE is set and meets the Ackermann steering condition; Wheelspan h
0for basic wheelspan, now steering hardware meets the Ackermam condition, adapts in Vehicle Driving Cycle under any road surface, arbitrary speed condition, operation and turns to; Along with the adjustment stub of wheelspan, apart from respective change, steering hardware is approximate meets the Ackermam condition, and the Vehicle Driving Cycle adapted under field Ground Operation or low-speed conditions turns to.Turning error is close when making steering hardware for maximum wheelspan and minimum wheelspan, chooses basic wheelspan h
0=(maximum wheelspan+minimum wheelspan)/2; For full size vehicle, in order to reduce the non-operating condition width of vehicle, can choose basic wheelspan h
0=minimum wheelspan, therefore basic wheelspan span is set as: h
0=minimum wheelspan～(maximum wheelspan+minimum wheelspan)/2.
A kind of car gage stepless adjusting mechanism, adjust in linkage steering mechanism and retain the wheelspan adjustment member by car gage, removing linked steering partly forms, comprise: be provided with longitudinal slipway 151 on vehicle frame 15, right sideslipway 152 and left sideslipway 153, right sideslipway 152 and left sideslipway 153 be axis of movement vertical with the axis of movement of longitudinal slipway 151 and be arranged symmetrically with altogether, driving lever 1 moves and connects by longitudinal slipway 151 constraints with vehicle frame 15, driving lever 1 front end respectively with right front connecting rod 4, left front connecting rod 3 is rotationally connected with the N point, the other end of right front connecting rod 4 is rotationally connected with the head end of right guide rod 8, right guide rod 8 moves and connects by right sideslipway 152 constraints with vehicle frame 15, the end of right guide rod 8 connects right wheel 14, the other end of left front connecting rod 3 is rotationally connected with the head end of left guide rod 7, left guide rod 7 moves and connects by left sideslipway 153 constraints with vehicle frame 15, the end of left guide rod 7 connects left wheel 13, left front connecting rod 3 is isometric with right front connecting rod 4, left guide rod 7 is isometric with right guide rod 8, driving lever 1 moves relative to the longitudinal slipway 151 of vehicle frame 15, and the wheelspan of left and right wheel continuously changes, and forms a kind of car gage stepless adjusting mechanism (as shown in Figure 6).
Arrange, share same vehicle central plane according to given axletree by one group of car gage adjustment linkage steering mechanism and one group of car gage stepless adjusting mechanism before and after L on same vehicle frame, car gage is set, and to adjust in linkage steering mechanism and car gage stepless adjusting mechanism two right front connecting rods 4 isometric, and have same basic wheelspan h
0, form and adapt to the front-wheel steering chassis (as shown in Figure 7) that wheelspan is adjusted vehicle; Simultaneously continuous equidistant change car gage adjust linkage steering mechanism with on two relative vehicle frames 15 of driving lever 1 in the car gage stepless adjusting mechanism separately longitudinal slipway 151 apart from the time, the relative vehicle central of each wheel plane apart from symmetry change, the vehicle chassis wheel base equates, realize the stepless adjustment of vehicle chassis wheelspan, deflecting bar 2 moves relative to the slideway 101 that turns to of driving lever 1 front-wheel steering of realizing vehicle chassis, in the wheelspan adjustment process and set up after any wheelspan and all can adapt to travelling of vehicle and turn to.
By two groups of identical car gages adjust linkage steering mechanisms on same vehicle frame according to given axletree apart from incorgruous layout before and after L, share same vehicle central plane, form and adapt to the four-wheel steering chassis (as shown in Figure 8) that wheelspan is adjusted vehicle.The forward and backward car gage of simultaneously continuous equidistant change adjust in linkage steering mechanism on two relative vehicle frames 15 of driving lever 1 longitudinal slipway 151 separately apart from the time, the relative vehicle central of each wheel plane apart from symmetry change, the vehicle chassis wheel base equates, realize the stepless adjustment of vehicle chassis wheelspan, former and later two deflecting bars 2 move relative to the slideway 101 that turns to of driving lever 1 separately the four-wheel steering of realizing vehicle chassis respectively, in the wheelspan adjustment process and set up after any wheelspan and all can adapt to travelling of vehicle and turn to.
Beneficial effect of the present invention is, a kind of car gage proposed is adjusted linkage steering mechanism, be applied to the steering swivel system of capable of regulating wheelspan vehicle, the motion of the relative vehicle central plane symmetry of left and right wheel, the stepless adjustment of wheelspan have been realized, in the wheelspan adjustment process and set up after wheelspan the normal direction of rotation that all can adapt to vehicle and travel.Can adjust Wheel centre distance for the crops line-spacing, adapt to the crops do mechanization operation requirement of different spacings.
The accompanying drawing explanation
Fig. 1 is that car gage is adjusted the linkage steering mechanism sketch;
Fig. 2 is that car gage adjustment linkage steering mechanism reduces the wheelspan fundamental diagram;
Fig. 3 is that car gage is adjusted linkage steering mechanism increase wheelspan fundamental diagram;
Fig. 4 is that car gage is adjusted linkage steering mechanism turnon left fundamental diagram;
Fig. 5 is that car gage is adjusted linkage steering mechanism right-hand corner fundamental diagram;
Fig. 6 is car gage stepless adjusting mechanism sketch;
Fig. 7 adjusts the front-wheel steering chassis fundamental diagram of vehicle for adapting to wheelspan;
Fig. 8 adjusts the four-wheel steering chassis fundamental diagram of vehicle for adapting to wheelspan.
In figure: the 1--driving lever, 101-turn to slideway, 2--deflecting bar, the left front connecting rod of 3--, the right front connecting rod of 4--, the left back connecting rod of 5--, the right back connecting rod of 6--, the left guide rod of 7--, the right guide rod of 8--, 9--left steering arm, 10--right steering arm, 11--left steering joint, 12--right steering joint, the 13--left wheel, the right wheel of 14--, 15--vehicle frame, the 151--longitudinal slipway, the right sideslipway of 152--, the left sideslipway of 153--.
The specific embodiment
Below with reference to the accompanying drawings embodiments of the invention are described.
Car gage shown in Fig. 1 is adjusted the linkage steering mechanism sketch, comprises driving lever 1, turns to slideway 101, longitudinal slipway 151, right sideslipway 152, the left sideslipway 153 of deflecting bar 2, left front connecting rod 3, right front connecting rod 4, left back connecting rod 5, right back connecting rod 6, left guide rod 7, right guide rod 8, left steering arm 9, right steering arm 10, left steering joint 11, right steering joint 12, left wheel 13, right wheel 14, vehicle frame 15 and upper setting thereof form; Be provided with longitudinal slipway 151, right sideslipway 152 and left sideslipway 153 on vehicle frame 15, right sideslipway 152 and left sideslipway 153 be axis of movement vertical with the axis of movement of longitudinal slipway 151 and be arranged symmetrically with altogether, right front connecting rod 4 is rotationally connected with the C point with right guide rod 8, right guide rod 8 moves and connects by right sideslipway 152 constraints with vehicle frame 15, the other end of right guide rod 8 and right steering arm 10 are rotationally connected with the A point, right back connecting rod 6 is rotationally connected with the B point with the other end of right steering arm 10, and getting right steering arm 10 long is L
10, right guide rod 8 is long is L
8, craspedodrome base angle g
0, right steering arm 10 is g with the angle of right guide rod 8
0the time wheel straight-line travelling, right steering joint 12 and 10 one-tenth 180 °-g of right steering arm
0angle is connected, jointly rotates around the A point, and right steering joint 12 connects right wheel 14 and controls its direction, and right front connecting rod 4 is isometric with right back connecting rod 6; Left front connecting rod 3 is rotationally connected with the G point with left guide rod 7, left guide rod 7 moves and connects by left sideslipway 153 constraints with vehicle frame 15, the other end of left guide rod 7 and left steering arm 9 are rotationally connected with the E point, left back connecting rod 5 is rotationally connected with the F point with the other end of left steering arm 9, left steering joint 11 and 9 one-tenth 180 °-g of left steering arm
0angle is connected, jointly rotates around the E point, left steering joint 11 connects left wheel 13 and controls its direction, left front connecting rod 3 is isometric with right front connecting rod 4, left guide rod 7 is isometric with right guide rod 8, left steering arm 9 is isometric with right steering arm 10, left back connecting rod 5 is isometric with right back connecting rod 6, and it is 12 isometric that left steering joint 11 and right steering save; Be provided with on driving lever 1 and turn to slideway 101, driving lever 1 front end is rotationally connected with the N point with the other end of right front connecting rod 4, left front connecting rod 3 respectively, point of connection N with turn to slideway 101 axis of movements apart from K=L
10* sing
0, driving lever 1 moves and connects by longitudinal slipway 151 constraints with vehicle frame 15, and deflecting bar 2 is long is L
2=2 (L
8-L
10* cosg
0), deflecting bar 2 two-end-points are rotationally connected with D, H point with the other end of right back connecting rod 6, left back connecting rod 5 respectively, deflecting bar 2 moves and connects by turning to slideway 101 constraints with driving lever 1, forms the craspedodrome Left-wing Federation and meets parallelogram FGNH and right connection parallelogram BCND; Hydraulic ram provides external force to drive driving lever 1 to move relative to the longitudinal slipway 151 of vehicle frame 15, the wheelspan of left and right wheel changes, the long interlock in the upper and lower end of interlock isosceles steering trapezium ABFE changes, deflector provides external force to drive deflecting bar 2 to move relative to the slideway 101 that turns to of driving lever 1, interlock isosceles steering trapezium ABFE two base angles are unequal, realize turning to of left and right wheel, deflecting bar 2 mid points are positioned on driving lever 1 axis, apart from f
0the time, interlock isosceles steering trapezium ABFE two base angles equate, left and right wheel straight-line travelling.It is double freedom mechanism that car gage is adjusted linkage steering mechanism, the wheelspan adjustment turns to and can also can carry out by complete independently simultaneously with travelling, therefore in the wheelspan adjustment process and set up after any wheelspan and all can adapt to travelling of vehicle and turn to, in the Vehicle Driving Cycle process, can carry out the wheelspan adjustment.
Car gage shown in Fig. 1 is adjusted in linkage steering mechanism, and driving lever 1 moves relative to the longitudinal slipway 151 of vehicle frame 15, and the wheelspan of left and right wheel changes, and the long interlock in the upper and lower end of interlock isosceles steering trapezium ABFE changes; When longitudinal slipway 151 distance of driving lever 1 relative vehicle frame 15 is S
0the time, the wheelspan of left and right wheel is h
0, now stub is apart from m
0, interlock isosceles steering trapezium ABFE is set and meets the Ackermann steering condition: cot (e
0)-cot (a
0)=m
0/ L, in formula: outer wheel turning angle e
0, interior wheel turning angle a
0, wheelbase L; Wheelspan h
0for basic wheelspan, now steering hardware meets the Ackermam condition, adapts in Vehicle Driving Cycle under any road surface, arbitrary speed condition, operation and turns to; Along with the adjustment stub of wheelspan, apart from respective change, steering hardware is approximate meets the Ackermam condition, and the Vehicle Driving Cycle adapted under field Ground Operation or low-speed conditions turns to.Turning error is close when making steering hardware for maximum wheelspan and minimum wheelspan, chooses basic wheelspan h
0=(maximum wheelspan+minimum wheelspan)/2; For full size vehicle, in order to reduce the non-operating condition width of vehicle, can choose basic wheelspan h
0=minimum wheelspan, therefore basic wheelspan span is set as: h
0=minimum wheelspan～(maximum wheelspan+minimum wheelspan)/2.Deflecting bar 2 mid points are positioned on driving lever 1 axis, apart from f
0the time, interlock isosceles steering trapezium ABFE two base angles equate, left and right wheel straight-line travelling, and car gage is adjusted linkage steering mechanism left-half driving lever 1 axis symmetry relative to right half part; The longitudinal slipway 151 that continuously changes driving lever 1 relative vehicle frame 15 apart from the time, relative driving lever 1 axis of left and right wheel apart from symmetry change, realize the stepless adjustment of wheelspan of left and right wheel.
Car gage shown in Fig. 2 is adjusted linkage steering mechanism and is reduced the wheelspan fundamental diagram, and when the longitudinal slipway 151 of driving lever 1 relative vehicle frame 15 moves forward, the distance change is when large, the wheelspan of left and right wheel reduces, and relative movement distance is S
1the time, S
1s
0, wheelspan is h
1, h now
1<h
0; The relative driving lever 1 axis symmetric motion of left and right wheel, the stepless adjustment of wheelspan.
Car gage shown in Fig. 3 is adjusted linkage steering mechanism and is increased the wheelspan fundamental diagram, when driving lever 1, relative to the longitudinal slipway 151 of vehicle frame 15, moves backward, distance is while diminishing, and the wheelspan increase of left and right wheel, relative movement distance is S
2the time, S
2<S
0, wheelspan is h
2, h now
2h
0; The relative driving lever 1 axis symmetric motion of left and right wheel, the stepless adjustment of wheelspan.When right front connecting rod 4, being maximum wheelspan during with right guide rod 8 conllinear, is maximum wheelspan when NC and CA conllinear; Meeting parallelogram FGNH and right connection parallelogram BCND by the Left-wing Federation under wheel straight-line travelling state keeps the wheelspan adjustment for the not impact of left and right wheel turning angle.
Car gage shown in Fig. 4 is adjusted linkage steering mechanism turnon left fundamental diagram, and external force drives deflecting bar 2 to move relative to the slideway 101 that turns to of driving lever 1, and interlock isosceles steering trapezium ABFE two base angles are unequal, realize turning to of left and right wheel; Turn to when deflecting bar 2 relative driving levers 1 that slideway 101 moves right, f
1<f
0the time, left and right wheel turnon left, during the vehicle turnon left: interior wheel turning angle is a
1, outer wheel turning angle is e
1; For in the wheelspan adjustment process and set up after any wheelspan and all can adapt to travelling of vehicle and turn to.
Car gage shown in Fig. 5 is adjusted linkage steering mechanism right-hand corner fundamental diagram, when deflecting bar 2 relative driving levers 1, turns to that slideway 101 is moved to the left, f
2f
0the time, left and right wheel right-hand corner, during the vehicle right-hand corner: interior wheel turning angle is a
2, outer wheel turning angle is e
2; When deflecting bar 2 mid points are positioned on driving lever 1 axis, apart from f
0the time, interlock isosceles steering trapezium ABFE two base angles are equal, and now right steering arm 10 equals same craspedodrome base angle g with angle and the left steering arm 9 of right guide rod 8 with the angle of left guide rod 7
0, left and right wheel straight-line travelling; Due to driving lever 1 with vehicle frame 15 without relative motion, turn to and adjust for the not impact of left and right Wheel centre distance.For in the wheelspan adjustment process and set up after any wheelspan and all can adapt to travelling of vehicle and turn to.
Car gage stepless adjusting mechanism sketch shown in Fig. 6, adjust in linkage steering mechanism and retain the wheelspan adjustment member, remove linked steering and partly form by car gage, comprise that longitudinal slipway 151, right sideslipway 152, the left sideslipway 153 of driving lever 1, left front connecting rod 3, right front connecting rod 4, left guide rod 7, right guide rod 8, left wheel 13, right wheel 14, vehicle frame 15 and upper setting thereof forms, be provided with longitudinal slipway 151 on vehicle frame 15, right sideslipway 152 and left sideslipway 153, right sideslipway 152 and left sideslipway 153 be axis of movement vertical with the axis of movement of longitudinal slipway 151 and be arranged symmetrically with altogether, driving lever 1 moves and connects by longitudinal slipway 151 constraints with vehicle frame 15, driving lever 1 front end respectively with right front connecting rod 4, left front connecting rod 3 is rotationally connected with the N point, the other end of right front connecting rod 4 is rotationally connected with the head end of right guide rod 8, right guide rod 8 moves and connects by right sideslipway 152 constraints with vehicle frame 15, the end of right guide rod 8 connects right wheel 14, the other end of left front connecting rod 3 is rotationally connected with the head end of left guide rod 7, left guide rod 7 moves and connects by left sideslipway 153 constraints with vehicle frame 15, the end of left guide rod 7 connects left wheel 13, left front connecting rod 3 is isometric with right front connecting rod 4, left guide rod 7 is isometric with right guide rod 8, external force drives driving lever 1 to move relative to the longitudinal slipway 151 of vehicle frame 15, the wheelspan of left and right wheel continuously changes, car gage stepless adjusting mechanism left-half driving lever 1 axis symmetry relative to right half part, left and right wheel symmetric motion while carrying out the wheelspan adjustment.
Adaptation wheelspan shown in Fig. 7 is adjusted the front-wheel steering chassis fundamental diagram of vehicle, comprise: by one group of car gage adjustment linkage steering mechanism and one group of car gage stepless adjusting mechanism, on same vehicle frame, according to given axletree, before and after L, arrange, share same vehicle central plane, car gage is set, and to adjust in linkage steering mechanism and car gage stepless adjusting mechanism two right front connecting rods 4 isometric, and have same basic wheelspan h
0; Simultaneously continuous equidistant change car gage adjust linkage steering mechanism with on two relative vehicle frames 15 of driving lever 1 in the car gage stepless adjusting mechanism separately longitudinal slipway 151 apart from the time, the relative vehicle central of each wheel plane apart from symmetry change, the vehicle chassis wheel base equates, realize the stepless adjustment of vehicle chassis wheelspan, deflecting bar 2 moves relative to the slideway 101 that turns to of driving lever 1 front-wheel steering of realizing vehicle chassis, in the wheelspan adjustment process and set up after any wheelspan and all can adapt to travelling of vehicle and turn to, the wheelbase on chassis remains constant.
Adaptation wheelspan shown in Fig. 8 is adjusted the four-wheel steering chassis fundamental diagram of vehicle, comprising: by two groups of identical car gages adjust linkage steering mechanisms on same vehicle frame according to given axletree apart from incorgruous layout before and after L, share same vehicle central plane, before continuous equidistant change simultaneously, rear car gage adjust in linkage steering mechanism on two relative vehicle frames 15 of driving lever 1 longitudinal slipway 151 separately apart from the time, the relative vehicle central of each wheel plane apart from symmetry change, the vehicle chassis wheel base equates, realize the stepless adjustment of vehicle chassis wheelspan, before, latter two deflecting bar 2 moves relative to the slideway 101 that turns to of driving lever 1 separately the four-wheel steering of realizing vehicle chassis, in the wheelspan adjustment process and set up after any wheelspan and all can adapt to travelling of vehicle and turn to, the wheelbase on chassis remains constant, four-wheel steering is conducive to reduce the field turn radius.
Regulate by wheelspan, can adapt to the mechanization farm work requirement of walking across the Different Crop line number under crop of the same race, identical line-spacing, also can adapt to the mechanization farm work requirement of Different Crop, different spacings.
Claims (8)
1. car gage is adjusted linkage steering mechanism, it is characterized in that, be provided with longitudinal slipway (151) on vehicle frame (15), right sideslipway (152) and left sideslipway (153), right sideslipway (152) and left sideslipway (153) be axis of movement vertical with the axis of movement of longitudinal slipway (151) and be arranged symmetrically with altogether, right front connecting rod (4) is rotationally connected with the C point with right guide rod (8), right guide rod (8) retrained with mobile the connection by right sideslipway (152) of vehicle frame (15), the other end of right guide rod (8) and right steering arm (10) are rotationally connected with the A point, right back connecting rod (6) is rotationally connected with the B point with the other end of right steering arm (10), getting right steering arm (10) long is L
10, right guide rod (8) is long is L
8, craspedodrome base angle g
0, right steering arm (10) is g with the angle of right guide rod (8)
0the time wheel straight-line travelling, right steering joint (12) becomes 180 °-g with right steering arm (10)
0angle is connected, jointly rotates around the A point, right steering joint (12) connects right wheel (14) and controls its direction, right front connecting rod (4) is isometric with right back connecting rod (6), left front connecting rod (3) is rotationally connected with the G point with left guide rod (7), left guide rod (7) retrained with mobile the connection by left sideslipway (153) of vehicle frame (15), the other end of left guide rod (7) and left steering arm (9) are rotationally connected with the E point, left back connecting rod (5) is rotationally connected with the F point with the other end of left steering arm (9), and left steering joint (11) becomes 180 °-g with left steering arm (9)
0angle is connected, jointly around the E point, rotate, left steering joint (11) connects left wheel (13) and controls its direction, left front connecting rod (3) is isometric with right front connecting rod (4), left guide rod (7) is isometric with right guide rod (8), left steering arm (9) is isometric with right steering arm (10), left back connecting rod (5) is isometric with right back connecting rod (6), left steering joint (11) is isometric with right steering joint (12), be provided with on driving lever (1) and turn to slideway (101), driving lever (1) front end respectively with right front connecting rod (4), the other end of left front connecting rod (3) is rotationally connected with the N point, point of connection N with turn to slideway (101) axis of movement apart from K=L
10* sing
0, driving lever (1) connects by longitudinal slipway (151) constraint with vehicle frame (15) is mobile, and deflecting bar (2) is long is L
2=2 (L
8-L
10* cosg
0), deflecting bar (2) two-end-point respectively with right back connecting rod (6), the other end of left back connecting rod (5) is rotationally connected with D, the H point, deflecting bar (2) connects by turning to slideway (101) constraint with driving lever (1) is mobile, driving lever (1) moves relative to the longitudinal slipway (151) of vehicle frame (15), left, the wheelspan of right wheel changes, deflecting bar (2) moves relative to the slideway (101) that turns to of driving lever (1), interlock isosceles steering trapezium ABFE two base angles are unequal, realize left, turning to of right wheel, when deflecting bar (2) mid point is positioned at driving lever (1) axis, interlock isosceles steering trapezium ABFE two base angles equate, left, right wheel straight-line travelling.
2. car gage according to claim 1 is adjusted linkage steering mechanism, it is characterized in that, when interlock isosceles steering trapezium ABFE two base angles equate, car gage is adjusted linkage steering mechanism left-half driving lever relative to right half part (1) axis symmetry.
3. car gage according to claim 1 is adjusted linkage steering mechanism, it is characterized in that, it is double freedom mechanism that car gage is adjusted linkage steering mechanism, and the wheelspan adjustment turns to and can also can carry out by complete independently simultaneously with travelling.
4. car gage according to claim 1 is adjusted linkage steering mechanism, it is characterized in that, when driving lever (1) relatively longitudinal slipway (151) distance of vehicle frame (15) be S
0, the wheelspan h of left and right wheel
0during for basic wheelspan, interlock isosceles steering trapezium ABFE is set and meets the Ackermann steering condition.
5. car gage according to claim 4 is adjusted linkage steering mechanism, it is characterized in that, basic wheelspan h
0=minimum wheelspan～(maximum wheelspan+minimum wheelspan)/2.
6. car gage stepless adjusting mechanism, adjust in linkage steering mechanism and retain the wheelspan adjustment member by car gage, removing linked steering partly forms, it is characterized in that, be provided with longitudinal slipway (151) on vehicle frame (15), right sideslipway (152) and left sideslipway (153), right sideslipway (152) and left sideslipway (153) be axis of movement vertical with the axis of movement of longitudinal slipway (151) and be arranged symmetrically with altogether, driving lever (1) retrained with mobile the connection by longitudinal slipway (151) of vehicle frame (15), driving lever (1) front end respectively with right front connecting rod (4), left front connecting rod (3) is rotationally connected with the N point, the other end of right front connecting rod (4) is rotationally connected with the head end of right guide rod (8), right guide rod (8) retrained with mobile the connection by right sideslipway (152) of vehicle frame (15), the end of right guide rod (8) connects right wheel (14), the other end of left front connecting rod (3) is rotationally connected with the head end of left guide rod (7), left guide rod (7) retrained with mobile the connection by left sideslipway (153) of vehicle frame (15), the end of left guide rod (7) connects left wheel (13), left front connecting rod (3) is isometric with right front connecting rod (4), left guide rod (7) is isometric with right guide rod (8), driving lever (1) moves relative to the longitudinal slipway (151) of vehicle frame (15), left, the wheelspan of right wheel continuously changes.
7. adapt to the front-wheel steering chassis that wheelspan is adjusted vehicle, it is characterized in that, arrange, share same vehicle central plane according to given axletree by one group of car gage adjustment linkage steering mechanism and one group of car gage stepless adjusting mechanism before and after L on same vehicle frame, car gage is set, and to adjust in linkage steering mechanism and car gage stepless adjusting mechanism two right front connecting rods (4) isometric, and have same basic wheelspan h
0simultaneously continuous equidistant change car gage adjust linkage steering mechanism with on the relative vehicle frames of two driving levers (1) (15) in the car gage stepless adjusting mechanism separately longitudinal slipway (151) apart from the time, the relative vehicle central of each wheel plane apart from symmetry change, the vehicle chassis wheel base equates, realize the stepless adjustment of vehicle chassis wheelspan, deflecting bar (2) moves relative to the slideway (101) that turns to of driving lever (1) front-wheel steering of realizing vehicle chassis, in the wheelspan adjustment process and set up after any wheelspan and all can adapt to travelling of vehicle and turn to.
8. adapt to the four-wheel steering chassis that wheelspan is adjusted vehicle, it is characterized in that, by two groups of identical car gages adjust linkage steering mechanisms on same vehicle frame according to given axletree apart from incorgruous layout before and after L, share same vehicle central plane, before continuous equidistant change simultaneously, rear car gage adjust two driving levers (1) in linkage steering mechanism relatively on vehicle frame (15) separately longitudinal slipway (151) apart from the time, the relative vehicle central of each wheel plane apart from symmetry change, the vehicle chassis wheel base equates, realize the stepless adjustment of vehicle chassis wheelspan, before, latter two deflecting bar (2) respectively moves relative to the slideway (101) that turns to of driving lever (1) separately the four-wheel steering of realizing vehicle chassis, in the wheelspan adjustment process and set up after any wheelspan and all can adapt to travelling of vehicle and turn to.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310395250.5A CN103465962B (en) | 2013-09-03 | 2013-09-03 | Car gage adjustment linkage steering mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310395250.5A CN103465962B (en) | 2013-09-03 | 2013-09-03 | Car gage adjustment linkage steering mechanism |
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| CN103465962A true CN103465962A (en) | 2013-12-25 |
| CN103465962B CN103465962B (en) | 2015-08-12 |
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| CN104149851A (en) * | 2014-08-22 | 2014-11-19 | 青岛理工大学 | Steering system and steering method of variable-wheel-tread vehicle |
| CN107458463A (en) * | 2016-06-03 | 2017-12-12 | 比亚迪股份有限公司 | The steering of vehicle and with the vehicle steering vehicle |
| CN108216362A (en) * | 2018-01-16 | 2018-06-29 | 北京汽车股份有限公司 | The trapezoidal control method of Ackermann steering, device, mechanism, system and automobile |
| CN109625086A (en) * | 2018-12-13 | 2019-04-16 | 王亚 | Vehicular turn rolls linkage and active roll vehicle |
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| CN104149851A (en) * | 2014-08-22 | 2014-11-19 | 青岛理工大学 | Steering system and steering method of variable-wheel-tread vehicle |
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| CN108216362A (en) * | 2018-01-16 | 2018-06-29 | 北京汽车股份有限公司 | The trapezoidal control method of Ackermann steering, device, mechanism, system and automobile |
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| CN109625086A (en) * | 2018-12-13 | 2019-04-16 | 王亚 | Vehicular turn rolls linkage and active roll vehicle |
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