CN102529629B - Vehicle chassis height regulating suspension and vehicle with same - Google Patents
Vehicle chassis height regulating suspension and vehicle with same Download PDFInfo
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- CN102529629B CN102529629B CN201110457954.1A CN201110457954A CN102529629B CN 102529629 B CN102529629 B CN 102529629B CN 201110457954 A CN201110457954 A CN 201110457954A CN 102529629 B CN102529629 B CN 102529629B
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Abstract
The invention relates to the technical field of vehicle parts, in particular to a vehicle chassis height regulating suspension and a vehicle with the suspension. The vehicle chassis height regulating suspension comprises a vehicle frame fixedly connected with a vehicle chassis and support rods (4) which are fixedly connected with wheel shafts (6) of the vehicle in vertical direction, and a parallelogram connecting rod mechanism is connected between the vehicle frame and the support rods (4); and the vehicle frame can adjust the height in the vertical direction relative to the positions of wheels. According to the vehicle chassis height regulating suspension and the vehicle, provided by the invention, the height of the vehicle chassis can be actively adjusted, an adjustment range exceeds the diameter of tires of the wheels, the height of the vehicle chassis is increased, the passing ability of the vehicle is greatly changed so as to adapt to the operation requirements of crops during the middle and late growth stages and long-stalked crops on farmland machinery, and the height of the vehicle chassis can be further reduced to adapt to the requirements of the crops during the early growth stage and short crops on farm work.
Description
Technical field
The present invention relates to vehicle part technical field, particularly a kind of vehicle chassis height adjustable suspension and the vehicle with this suspension.
Background technology
Along with the development of Tendency of Agricultural Machinery in China and the raising day by day of living standards of the people, people have higher requirement to farm working machinery.After field crops plantation, intertillage, weeding, spray insecticide and the field management operation such as fertilising has higher requirement to field machine crossing ability, therefore need more urgently significantly active accommodation vehicle chassis height to improve trafficability, along with highly increasing in process of crop growth and the field management operations of long-stalked crops, conventionally require setting range to surpass diameter of tyres.There are at present a variety of modes to realize the adjustment to vehicle chassis height, application number is that 200610018159.1 patent of invention has comprised a kind of air suspension, by the inflation/deflation of air bellow, realize the variation of chassis clearance, but adjustment amount is less, far can not meet the requirement of field vehicle chassis height.Application number is 200510084634.0 patent of invention, by height controller, change suspension support with respect to the height of vehicle body, can indirectly adjust within the specific limits passenger-car chassis height, improve certain traveling comfort and stability, but complex structure, cost are high, poor rigidity, mainly be used on car, and because structural limitations makes adjustment amount less, still can not meet field management operation in the whole growth course of field-crop and can realize to vehicle chassis height the requirement of significantly adjusting.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is to provide a kind of vehicle chassis height adjustable suspension and vehicle, and significantly variation and the setting range of realizing vehicle chassis height surpass wheel tyre diameter, to adapt to the requirement to farm working machinery in process of crop growth.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of vehicle chassis height adjustable suspension, it comprises: the vehicle frame being fixedly connected with vehicle chassis, with the strut bar that wheel of vehicle axle is fixedly connected with at vertical direction, is connected parallelogram linkage between described vehicle frame and described strut bar; Described vehicle frame is adjustable with respect to the height of wheel position in the vertical direction.
Further, described vehicle frame comprise be fixedly connected on vehicle chassis upper plate, with base plate middle part two symmetrically arranged rectilinear orbits connected vertically, on described two rectilinear orbits, be installed with respectively the slide block that can slide up and down along it;
Described parallelogram linkage comprises: the upper rocking bar and the lower rocking bar that be vertically fixed on the support arm at base plate two ends, are articulated and connected respectively with upper point of connection and the lower point of connection of described support arm, and the articulated position of the upper point of connection of described upper rocking bar and described support arm is positioned at the middle part of described upper rocking bar; The other end of described lower rocking bar and upper rocking bar is hinged with described strut bar respectively, and described lower rocking bar and upper rocking bar are for be arrangeding in parallel;
The opposite end of described upper rocking bar and described strut bar coupling end is hinged with connecting rod, and described rod hinge connection is to the fixed connection point with described slide block homonymy.
Further, described vehicle chassis height adjustable suspension is symmetrical with the line of centers between described two rectilinear orbits.
Further, the bottom of described two slide blocks connects respectively elastomeric element, slides together with the slide block of described elastomeric element and homonymy.
Further, also comprise a pressing plate, described pressing plate is laterally positioned at the bottom of two elastomeric elements and is connected on two rectilinear orbits, for compressing described elastomeric element.
Further, described pressing plate is connected with actuating device.
Further, described actuating device is hydraulic efficiency gear.
Further, described pressing plate is provided with position locking mechanism, for locking described pressing plate with respect to the height and position of described rectilinear orbit.
Further, described position locking mechanism is fluid control valve.
On the other hand, the present invention also provides a kind of vehicle with this suspension, comprises above-mentioned vehicle chassis height adjustable suspension, and described vehicle chassis height adjustable suspension is arranged on the left and right sides of vehicle chassis.
Further, when vehicle is positioned on broken terrain, four slide blocks of vehicle chassis height adjustable suspension that are arranged in the vehicle chassis left and right sides are in differing heights position on rectilinear orbit separately, and described vehicle chassis keeps level constant.
(3) beneficial effect
The vehicle chassis height adjustable suspension that technique scheme provides, can active accommodation vehicle chassis height and setting range surpass wheel tyre diameter, increase vehicle chassis height, change significantly trafficability, to adapt to plant growth middle and later periods and the long-stalked crops job requirements to farmland machinery, can be by reducing vehicle chassis height, to adapt to the farm work requirement of plant growth initial stage and short crop.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention vehicle chassis height adjustable suspension;
Fig. 2 is the vehicle chassis fundamental diagram that the embodiment of the present invention can active accommodation height;
Fig. 3 is the fundamental diagram that the embodiment of the present invention increases vehicle chassis height;
Fig. 4 is the fundamental diagram that the embodiment of the present invention reduces vehicle chassis height;
Fig. 5 be embodiment of the present invention vehicle chassis height fixedly time wheel to ground profile modeling figure.
Wherein, 1: slide block; 2: connecting rod; 3: upper rocking bar; 4: strut bar; 5: lower rocking bar; 6: axletree; 7: vehicle frame; 71: base plate; 72: rectilinear orbit; 73: support arm; 8: spring; 9: pressing plate; 11: chassis; 12: wheel.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, a kind of vehicle chassis height adjustable suspension providing for the embodiment of the present invention, comprise: the vehicle frame 7 being fixedly connected with vehicle chassis 11, the strut bar 4 being fixedly connected with at vertical direction with wheel of vehicle axle 6, is connected with parallelogram linkage between vehicle frame and strut bar 4; Vehicle frame is adjustable with respect to the height of wheel position in the vertical direction.The arranging of parallelogram linkage can be realized vehicle frame with respect to significantly the swinging in short transverse of wheel position, thereby realizes the adjusting of the height between vehicle chassis 11 and wheel.
Vehicle frame (in accompanying drawing vehicle frame be shaped as inverted T shape) comprises base plate 71 and the symmetrically arranged rectilinear orbit 72 of perpendicular two of being fixedly connected with, and is installed with respectively the slide block 1 that can slide up and down along it on rectilinear orbit 72.Wherein, parallelogram linkage comprises: the upper rocking bar 3 and the lower rocking bar 5 that be vertically fixed on the support arm 73 of base plate 71 ends, are articulated and connected respectively with upper point of connection and the lower point of connection of support arm 73, and upper rocking bar 3 and the articulated position of the upper point of connection E of support arm 73 are positioned at the middle part of rocking bar 3; The other end of lower rocking bar 5 and upper rocking bar 3 is hinged with strut bar 4 respectively, and lower rocking bar 5 and upper rocking bar 3 are for be arrangeding in parallel; Upper rocking bar 3 is hinged with connecting rod 2 with the opposite end of strut bar 4 coupling ends, and connecting rod 2 is hinged to the fixed connection point with slide block 1 homonymy.
The vehicle chassis height adjustable suspension that the present embodiment provides can be to be both connected with independent wheel 7, also can be arranged to symmetrically, was connected with the wheel of its both sides simultaneously, and realization is integrally-regulated to vehicle chassis 11 1 sides.
Preferably, vehicle chassis height adjustable suspension is symmetric with the line of centers MN between two rectilinear orbits, and concrete structure is referring to the annexation between slide block 1, connecting rod 2, upper rocking bar 3, strut bar 4, lower rocking bar 5, axletree 6, wheel 12 and vehicle frame and each parts in accompanying drawing 1.On vehicle frame 7, be provided with base plate 71 and and symmetrically arranged two rectilinear orbits 72 vertical with base plate 71, the two ends of this base plate 71 are two support arms 73 of vertical connection respectively, these two support arms 73 are provided with upper left point of connection E, lower-left point of connection F, upper right point of connection G, bottom right point of connection H, two arm length equate, E, F, G, 4 of H are positioned on four summits of a rectangle, left and right support arm 73 is symmetrical about the line of centers MN between two rectilinear orbits 72, two rectilinear orbits 72 are positioned at vehicle central plane, and with support arm 73 in same plane, rectilinear orbit 72 length are greater than the length of support arm 73 conventionally, slide block 1 is mobile link on the rectilinear orbit 72 of homonymy respectively, the upper extreme point of connecting rod 2 is articulated with the left point of connection of slide block 1, lower extreme point is articulated with the right endpoint of rocking bar 3, the right endpoint of lower rocking bar 5 is articulated with the lower-left point of connection F on vehicle frame, the middle part of upper rocking bar 3 is articulated with the upper left point of connection E of vehicle frame, and its left end point is equal in length to the distance of middle part hinge-point and lower rocking bar 5, the upper extreme point of strut bar 4 is articulated with the left end point of rocking bar 3, its middle part is articulated with the left end point of lower rocking bar 5, and its upper extreme point is equal in length to the distance of middle part hinge-point and the support arm that is positioned at left end 73 on vehicle frame, upper rocking bar 3, lower rocking bar 5, strut bar 4 forms parallel-crank mechanism with the support arm that is positioned at left end 73 on vehicle frame at same plane, the lower extreme point of axletree 6 and strut bar 4 is vertical be connected and its axis perpendicular in parallel-crank mechanism plane of movement, spring members is connected in the bottom of slide block 1, elastomeric element in the present embodiment adopts spring 8, but also can adopt other to have elastically-deformable elastomeric element.This spring 8 can slide along rectilinear orbit 72 with slide block 1 always, and forming left half actuating device of car is 1-2-3-4-12-8, and in like manner, right half actuating device is the same and symmetrical with the result of left half actuating device.Left and right half actuating device shares same vehicle frame 7, forms vehicle chassis height adjustable suspension.When the distance between the base plate 71 on pressing plate 9 and vehicle frame 7 is S, base plate 71 on vehicle frame is h apart from the height on ground, by outside force, change the distance S between pressing plate 9 and base plate 71, by parallel-crank mechanism, can change base plate 71 apart from the height h on ground.
For realizing the adjusting to vehicle chassis height adjustable suspension, pressing plate 9 is connected with actuating device, and pressing plate 9 is also provided with position locking mechanism (attached not shown), for locking described pressing plate with respect to the height and position of described rectilinear orbit.Preferably, actuating device is hydraulic efficiency gear, and position locking mechanism is fluid control valve.
In conjunction with shown in Fig. 2 to 5, the embodiment of the present invention also provides a kind of vehicle, comprises the vehicle chassis height adjustable suspension of foregoing description, and this vehicle chassis height adjustable suspension is arranged on relative both sides, chassis 11.Preferably, vehicle chassis height adjustable suspension is positioned at the two ends, left and right on chassis 11.
Be illustrated in figure 2 vehicle chassis height adjustable suspension fundamental diagram, two groups of vehicle chassis height adjustable suspensions are arranged on the left and right sides on same chassis 11 according to given axletree distance, share same vehicle central plane, by two groups of hydraulic rams, produce two pressing plates 9 in the vehicle chassis height adjustable suspension that propulsive efforts change the left and right sides simultaneously and the distance between the base plate 71 on vehicle frame, keep the pressing plate 9 of the left and right sides to equate with the distance between base plate 71, pass through parallel-crank mechanism, make base plate 71 apart from the Level Change on ground, realize the adjustment of vehicle chassis 11 height, after adjusting, pass through fluid control valve or mechanical locking device, the distance being fixed between left and right sides pressing plate 9 and base plate 71 is constant, can keep one of vehicle chassis 11 to determine height.In the process of moving, locking is arranged in the pressing plate 9 of vehicle chassis height adjustable suspension and the relative motion of rectilinear orbit 72 of the left and right sides, so that evenly in the face of the vertical load of wheel 12 is delivered to the pressure on pressing plate 9 by parallel-crank mechanism, slide block 1 and spring 8, the vehicle chassis 11 that formation can active accommodation height.In chassis height adjustment process, because the strut bar 4 of parallel-crank mechanism is parallel with the support arm 73 on vehicle frame, and support arm 73 is vertical with the base plate 71 on vehicle frame, so strut bar 4 is vertical with base plate 71 all the time, again because of wheel 12 pivots center and axletree 6 conllinear, cause the plane of rotation of wheel 12 parallel with strut bar 4, so wheel 12 is vertical with the base plate 71 on vehicle frame all the time, at vehicle chassis, travel, in operation process, four wheels all can remain that and wheelbase vertical with base plate 71 on vehicle frame remains constant.In chassis height adjustment process, continuous setup two pressing plates 9 equidistantly move simultaneously, can realize the step-less adjustment of vehicle chassis height.
The fundamental diagram of increase vehicle chassis height as shown in Figure 3, when vehicle chassis is smooth ground is up while sailing, the suffered vertical load of four wheels is identical, and the base plate on vehicle frame equates apart from the distance of each wheel rotation axis.By two groups of hydraulic rams, produce propulsive effort and increase a left side simultaneously, two sliding pressure plates 9 in right vehicle chassis height adjustable suspension and the distance between the base plate 71 on vehicle frame, keep left and right pressing plate 9 to equate with the distance between base plate 71, by spring 8, slide block 1 and parallel-crank mechanism, can make base plate 71 increase apart from the height on ground, after adjusting, pass through fluid control valve or mechanical locking device, the pressing plate 9 and the distance between base plate 71 that are fixed in the chassis left and right sides are constant, obtain a higher vehicle chassis height, improve the performance of passing through of vehicle chassis, to meet the farm work requirement of plant growth middle and later periods and long-stalked crops, in adjustment process, when connecting rod 2 and upper rocking bar 3 conllinear, reach the highest carrying capacity of vehicle chassis.
The fundamental diagram of reduction vehicle chassis height as shown in Figure 4, by two groups of hydraulic rams, produce propulsive effort reduces in the pressing plate 9 of the chassis left and right sides and the distance between the base plate 71 on vehicle frame simultaneously, keep pressing plate 9 to equate with the distance between base plate 71, by spring 8, slide block 1 and parallel-crank mechanism, can make base plate 71 reduce apart from the height on ground, after adjusting, pass through fluid control valve or mechanical locking device, distance between fixation clip 9 and base plate 71 is constant, obtain a lower vehicle chassis 11 height, to adapt to the farm work requirement of plant growth initial stage and short crop.As shown in Figure 3 can active accommodation height vehicle chassis in compared with cross-country traveling ability energy mode of operation, shown in comparison diagram 4 can active accommodation height vehicle chassis 11 in lower by performance mode of operation, chassis 11 height adjustment range are greater than wheel 12 diameter of tyres, can adapt to the farm work requirement in the whole growth course of crop.
Vehicle chassis height is as shown in Figure 5 the fundamental diagram of wheel to ground profiling fixedly time.When vehicle chassis travels on broken terrain, during operation, four vertical load differences that wheel is suffered, the pressure that wheel is faced on ground passes on spring by parallel-crank mechanism and slide block, deflection of spring is to absorb the pressure of facing wheel, slide block fluctuates along rectilinear orbit, guarantee wheel close proximity to ground, profiling is carried out in irregular ground; In vehicle chassis driving process, locking is positioned at the relative motion of two pressing plates and the rectilinear orbit of chassis both sides, so that the vertical load in the face of wheel is delivered to the pressure on pressing plate by parallel-crank mechanism, slide block and spring evenly, keeps vehicle chassis normal operation, travel.
The vehicle chassis height adjustable suspension that technique scheme provides, can active accommodation vehicle chassis height and setting range surpass wheel tyre diameter, increase vehicle chassis height, change significantly trafficability, to adapt to plant growth middle and later periods and the long-stalked crops job requirements to farmland machinery, can be by reducing vehicle chassis height, to adapt to the farm work requirement of plant growth initial stage and short crop.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (10)
1. a vehicle chassis height adjustable suspension, it is characterized in that, comprise: the vehicle frame being fixedly connected with vehicle chassis, the strut bar (4) being fixedly connected with at vertical direction with wheel of vehicle axle (6), is connected parallelogram linkage between described vehicle frame and described strut bar (4); Described vehicle frame is adjustable with respect to the height of wheel position in the vertical direction; Wherein,
Described vehicle frame comprise be fixedly connected on vehicle chassis upper plate, with base plate middle part two symmetrically arranged rectilinear orbits connected vertically, on described two rectilinear orbits, be installed with respectively the slide block (1) that can slide up and down along it;
Described parallelogram linkage comprises: the upper rocking bar (3) and the lower rocking bar (5) that be vertically fixed on the support arm at base plate two ends, are articulated and connected respectively with upper point of connection and the lower point of connection of described support arm, and described upper rocking bar (3) and the articulated position of the upper point of connection of described support arm are positioned at the middle part of described upper rocking bar (3); The other end of described lower rocking bar (5) and upper rocking bar (3) is hinged with described strut bar (4) respectively, and described lower rocking bar (5) and upper rocking bar (3) are for be arrangeding in parallel;
Described upper rocking bar (3) is hinged with connecting rod (2) with the opposite end of described strut bar (4) coupling end, and described connecting rod (2) is hinged to the fixed connection point with described slide block (1) homonymy.
2. vehicle chassis height adjustable suspension as claimed in claim 1, is characterized in that, described vehicle chassis height adjustable suspension is symmetrical with the line of centers between described two rectilinear orbits.
3. vehicle chassis height adjustable suspension as claimed in claim 1, is characterized in that, the bottom of described two slide blocks connects respectively elastomeric element (8), slides together with the slide block (1) of described elastomeric element (8) and homonymy.
4. vehicle chassis height adjustable suspension as claimed in claim 3, it is characterized in that, also comprise a pressing plate (9), described pressing plate (9) is laterally positioned at the bottom of two elastomeric elements (8) and is connected on two rectilinear orbits, for compressing described elastomeric element (8).
5. vehicle chassis height adjustable suspension as claimed in claim 4, is characterized in that, described pressing plate (9) is connected with actuating device.
6. vehicle chassis height adjustable suspension as claimed in claim 5, is characterized in that, described actuating device is hydraulic efficiency gear.
7. vehicle chassis height adjustable suspension as claimed in claim 4, is characterized in that, described pressing plate (9) is provided with position locking mechanism, for locking described pressing plate (9) with respect to the height and position of described rectilinear orbit.
8. vehicle chassis height adjustable suspension as claimed in claim 7, is characterized in that, described position locking mechanism is fluid control valve.
9. a vehicle, is characterized in that, comprises the vehicle chassis height adjustable suspension described in claim 1-8 any one, and described vehicle chassis height adjustable suspension is arranged on the left and right sides of vehicle chassis.
10. vehicle as claimed in claim 9, it is characterized in that, when vehicle is positioned on broken terrain, four slide blocks of vehicle chassis height adjustable suspension that are arranged in the vehicle chassis left and right sides are in differing heights position on rectilinear orbit separately, and described vehicle chassis keeps level constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110457954.1A CN102529629B (en) | 2011-12-30 | 2011-12-30 | Vehicle chassis height regulating suspension and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110457954.1A CN102529629B (en) | 2011-12-30 | 2011-12-30 | Vehicle chassis height regulating suspension and vehicle with same |
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| CN102529629A CN102529629A (en) | 2012-07-04 |
| CN102529629B true CN102529629B (en) | 2014-04-02 |
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| CN201110457954.1A Expired - Fee Related CN102529629B (en) | 2011-12-30 | 2011-12-30 | Vehicle chassis height regulating suspension and vehicle with same |
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| CN114430966B (en) * | 2022-02-22 | 2024-03-29 | 新疆农业大学 | Profiling seeder |
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