CN109203896B - Suspension system for realizing height adjustment of vehicle body - Google Patents
Suspension system for realizing height adjustment of vehicle body Download PDFInfo
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- CN109203896B CN109203896B CN201811403567.8A CN201811403567A CN109203896B CN 109203896 B CN109203896 B CN 109203896B CN 201811403567 A CN201811403567 A CN 201811403567A CN 109203896 B CN109203896 B CN 109203896B
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- oil
- damper
- blade
- vehicle body
- shock absorber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/13—Torsion spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
Abstract
The invention discloses a suspension system for realizing height adjustment of a vehicle body, which comprises a mandrel and an adjusting cavity, wherein two ends of the mandrel are fixed on the vehicle body, the adjusting cavity is sleeved on the mandrel, the left side and the right side of the adjusting cavity are both connected with blade dampers, the outer ends of the left side and the right side blade dampers are both connected with longitudinal arms, the blade dampers and the longitudinal arms are both sleeved on the mandrel, torsion bar springs are respectively connected between the left side blade damper and the right side longitudinal arm and between the right side blade damper and the left side longitudinal arm, the lower end of the longitudinal arm is used for being connected with a vehicle wheel, the adjusting cavity drives the two side blade dampers to rotate, and the two side blade dampers drive the corresponding longitudinal arms to rotate. The automatic height adjustment of the vehicle body is realized, the vibration reduction function of the vehicle body is realized, the vehicle body platform can adapt to various complex terrains, and the functions of climbing, ditch crossing, mountain driving and the like are realized.
Description
Technical Field
The invention relates to the technical field of vehicle suspensions, in particular to a suspension system for realizing vehicle height adjustment.
Background
At present, a cylindrical hydraulic shock absorber and a spiral spring are mainly adopted in a suspension system of most vehicles, and the height of a vehicle body is fixed due to the suspension structure; for example, the chassis of the passenger car is low, the passenger car is suitable for flat roads and highways, and the off-road performance of the passenger car is insufficient; while the conventional all terrain vehicle has a certain field driving capability due to the improved height of the chassis, the driving performance on a flat road is reduced due to the higher height of the chassis.
In some areas with harsh environments, such as mountainous regions, deserts and the like, the height of a vehicle body is often required to be adjusted to improve the trafficability of the vehicle, and the traditional suspension system cannot realize the function. The blade damper has the advantage that a height adjustment of the vehicle body can be achieved. This patent therefore proposes a suspension system with a blade damper and a torsion bar spring as basic components.
Therefore, the method has wide prospect in the aspect of improving the trafficability of the vehicle in complex terrain.
Disclosure of Invention
The invention aims to solve the technical problem that the suspension system for realizing the height adjustment of the vehicle body is provided aiming at the defects in the prior art, realizes the automatic adjustment of the height of the vehicle body, has the function of vibration reduction of the vehicle body, enables a vehicle body platform to adapt to various complex terrains, and realizes the functions of climbing, passing through ditches, running in mountainous regions and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a suspension system for realizing height adjustment of a vehicle body comprises a mandrel and an adjusting cavity, wherein two ends of the mandrel are fixed on the vehicle body, the adjusting cavity is sleeved on the mandrel, the left side and the right side of the adjusting cavity are both connected with blade dampers, the outer ends of the left side and the right side blade dampers are both connected with longitudinal arms, the blade dampers and the longitudinal arms are both sleeved on the mandrel, torsion bar springs are respectively connected between the left side blade damper and the right side longitudinal arm and between the right side blade damper and the left side longitudinal arm, the lower end of the longitudinal arm is used for being connected with a vehicle wheel, the adjusting cavity drives the two side blade dampers to rotate, and the two side blade dampers drive the corresponding longitudinal arms to rotate around; the height change between the wheel and the mandrel is adjusted by controlling the rotation of the longitudinal arm, the automatic adjustment of the height of the vehicle body is realized, the function of bearing and buffering the impact of a road surface on the vehicle body is realized by the matching of the first torsion bar spring and the second torsion bar spring as well as the first blade shock absorber and the second blade shock absorber, and the function of damping the vehicle body is realized; when the vehicle passes through the terrain obstacle, the height of the vehicle body is changed by using the height adjusting function to cross the obstacle, and the vibration of the vehicle body can be reduced by the vibration damping system when the road surface jolts. The vehicle body platform can adapt to various complex terrains and realize the functions of climbing, ditch crossing, mountain driving and the like.
According to the technical scheme, the longitudinal arms, the blade dampers and the torsion bar springs on the left side and the right side are symmetrically arranged on the mandrel by taking the adjusting cavity as the center.
According to the technical scheme, the torsion bar spring is used as an important structure which plays an important role in both the height adjusting module and the damping module. One suspension system is arranged in front of and behind the other suspension system, one end of the suspension system is connected to the trailing arm, and the other end of the suspension system is connected to a support of the shock absorber shell. The torsion bar spring has good mechanical property, can convert the rotation of adjusting the cavity into the rotation of the longitudinal arm when adjusting the height, realizes height adjustment, and can continuously generate elastic deformation when the longitudinal arm vibrates when passing through a complex pavement, thereby playing a role in buffering pavement impact.
According to the technical scheme, the adjusting cavity is connected with an oil pressure control system, the adjusting cavity comprises an adjusting cavity shell, an inner core sleeve, an adjusting cavity blade and an adjusting cavity partition plate, an inner core sleeve fixing sleeve is arranged in the adjusting cavity shell, the adjusting cavity blade is connected with the inner core sleeve, the inner core sleeve is fixedly sleeved on the mandrel, the adjusting cavity partition plate is connected with the adjusting cavity shell, the adjusting cavity blade and the adjusting cavity partition plate divide the inner cavity of the adjusting cavity shell into two parts of cavities together, the two parts of cavities are respectively provided with an oil inlet and an oil outlet, the oil inlet and the oil outlet are respectively connected with the oil pressure control system, the oil pressure control system adjusts the oil pressure in the two parts of cavities through the oil inlet and the oil outlet, so that pressure difference is formed between the two parts of cavities in the adjusting cavity.
According to the technical scheme, the inner core sleeve and the core shaft are integrally manufactured.
According to the technical scheme, the oil inlet and the oil outlet are connected with the oil pressure control system through the oil pipe, when the height adjusting module does not work, the adjusting cavity is locked through oil and is kept relatively fixed with the position of the mandrel, and when the oil pressure control system works, the two cavities generate pressure difference to drive the adjusting cavity shell to rotate.
According to the technical scheme, the two ends of the mandrel are fixedly connected with the automobile body to provide a foundation for assembly connection of the shock absorber and the adjusting cavity, the mandrel is designed to be in a step shape, the diameter of the part, penetrating through the adjusting cavity, of the mandrel is larger than that of the part, penetrating through the blade shock absorbers on the two sides, of the mandrel, so that the limiting effect on each module is achieved through change of the shaft diameter, the diameter enlarging parts mainly provide limiting effects for the sealing covers on the two sides, and meanwhile, the two ends of the shaft are thinned to process threads on the two ends of the shaft, and therefore left.
According to the technical scheme, the blade damper comprises a damper shell and a damper sleeve, the damper sleeve is sleeved in the damper shell, the damper sleeve is sleeved on the mandrel, the damper shell is fixedly connected with the adjusting cavity shell, the outer end of the damper sleeve is connected with the longitudinal arm on the same side, the damper shell is connected with the longitudinal arm on the different side through the torsion bar spring, and damping oil is filled in a cavity between the damper shell and the damper sleeve.
According to the technical scheme, the outer ring of the shock absorber sleeve is provided with the shock absorption blades, and the shock absorption blades are provided with a plurality of damping holes.
According to the technical scheme, the number of the vibration reduction blades is 2, and the vibration reduction blades are respectively a first vibration reduction blade and a second vibration reduction blade.
According to the technical scheme, a shock absorber partition plate is arranged between the shock absorber shell and the shock absorber sleeve, and the shock absorber partition plate is fixedly connected with the shock absorber shell.
According to the technical scheme, the number of the shock absorber partition plates is 2, and the shock absorber partition plates are respectively a first shock absorber partition plate and a second shock absorber partition plate.
According to the technical scheme, the sealing cover is connected between the shock absorber shell and the adjusting cavity shell, and oil isolation between the adjusting cavity and the shock absorber cavity is achieved through the sealing cover.
According to the technical scheme, the inner end of the shock absorber sleeve is connected with the mandrel through the bearing, the outer end of the shock absorber sleeve is connected with the corresponding longitudinal arm through the spline, and the longitudinal arm is sleeved with the mandrel through the bearing.
According to the technical scheme, the inner end of the shock absorber is provided with a diameter expansion end, and the inner ring of the diameter expansion end is connected with the mandrel through a tapered roller bearing; a gap is reserved between the inner end face of the shock absorber sleeve and the sealing cover, the tapered roller bearing can bear the action of axial force, and a sealing ring is arranged between the outer surface of the diameter expansion end and the inner surface of the shock absorber shell, so that shock absorbing oil can be prevented from flowing outwards. The lower part of the longitudinal arm is connected with a wheel, and can transmit the torque borne by the wheel and the vibration of the wheel to a suspension system; the upper opening passes through the mandrel, and a tapered roller bearing is arranged in the upper opening and can rotate around the mandrel; meanwhile, the upper part of the shock absorber is connected with a sleeve of the shock absorber through a spline, and a mandrel is sleeved in the sleeve. The front of one longitudinal arm is fixedly connected with a torsion bar spring, and the rear of the other longitudinal arm is fixedly connected with the torsion bar spring. The tapered roller bearing has the function of bearing the axial force generated by a road surface on a suspension system. Each damping module has two tapered roller bearings. One of the bearings is arranged between the longitudinal arm and the mandrel, one side of the bearing is limited by the longitudinal arm, and the other side of the bearing is limited by a nut sleeved on the mandrel. The other bearing is arranged between the inner end of the sleeve with the enlarged end part and the mandrel, and the sleeve and the end cover are limited at two sides of the sleeve.
According to the technical scheme, the shock absorber shell is fixedly connected with the adjusting cavity shell through a flange, two partition plates are arranged inside the shock absorber shell and are rigidly connected to the shell, a framework oil seal is arranged on the shaft part of a shock absorber end cover, a sealing ring is arranged on an outer ring of the shock absorber end cover, a shock absorber sleeve is sleeved on a mandrel, two blades which are rigidly connected are arranged on the sleeve, a shock absorber cavity is formed between each blade and each partition plate, and the shock absorber cavity is filled with. Certain gaps are formed between the partition plate fixedly connected with the inner wall of the shock absorber shell and the inner sleeve and between the blades on the sleeve and the inner wall of the shock absorber shell, and the gaps can eliminate friction and can generate damping force when the shock absorber works. Meanwhile, the blades of the shock absorber sleeve are provided with a certain number of small holes which are used as main damping holes, so that the damping effect on oil is realized, and the shock absorption effect of the blade shock absorber can be changed by setting a proper number of holes. The trailing arm drives the sleeve and rotates when the road surface vibrates, and the oil pressure difference between blade and the baffle can make the inside liquid of shock absorber flow through from above-mentioned hole when rotating, produces the damping effect, and fluid makes a round trip to pass through the damping gap, and the heat energy that constantly turns into the inside liquid of shock absorber with vibration energy scatters and disappears, realizes the damping effect.
According to the technical scheme, the oil pressure control system comprises an oil pump and an oil tank, the oil outlet of the oil pump is respectively connected with two oil inlets of the adjusting cavity through a solenoid valve, the two oil inlets of the adjusting cavity are controlled to be opened and closed through the solenoid valve, a pressure release valve is connected between the oil inlet of the oil tank and the oil outlet of the oil pump, the oil inlet of the oil tank is respectively connected with the two oil outlets of the adjusting cavity through the solenoid valve, the two oil outlets of the adjusting cavity are controlled to be opened and closed through the solenoid valve, and the.
According to the technical scheme, the oil pressure control system further comprises a power supply, a single chip microcomputer and an angle sensor, wherein the power supply is respectively connected with the single chip microcomputer and the oil pump, the angle sensor is arranged on the adjusting cavity shell, the single chip microcomputer is respectively connected with the oil pump, the angle sensor and each electromagnetic valve, and the single chip microcomputer detects the rotating angle of the adjusting cavity shell through the angle sensor to control the operation of each electromagnetic valve and the oil pump; when the vehicle body is adjusted to a preset height, namely the adjusting cavity shell rotates for a preset angle, the angle sensor on the adjusting cavity shell transmits a signal to the single chip microcomputer, and the single chip microcomputer controls the electromagnetic valves to be closed and the oil pump to stop working.
The invention has the following beneficial effects:
1. the height change between the wheels and the mandrel is adjusted by controlling the rotation of the longitudinal arm, so that the automatic adjustment of the height of the vehicle body is realized, the function of bearing and buffering the impact of a road surface on the vehicle body is realized by the matching of a torsion bar spring and a blade shock absorber, and the vehicle body shock absorption function is realized; when the vehicle passes through the terrain obstacle, the height of the vehicle body is changed by using the height adjusting function to cross the obstacle, and the vibration of the vehicle body can be reduced by the vibration damping system when the road surface jolts. The vehicle body platform can adapt to various complex terrains and realize the functions of climbing, ditch crossing, mountain driving and the like.
2. The suspension system for realizing the height adjustment of the vehicle body is compact in arrangement, and the space utilization rate is improved; the longitudinal arm is connected with the shock absorber sleeve through a spline, so that the longitudinal arm and the shock absorber are integrated, the shock absorber shell and the adjusting cavity shell are connected into a whole, and all the separating modules are effectively combined into a whole, so that the blade shock absorber is more flexible to use. The arrangement mode of the mandrel outer sleeve adjusting cavity shell also enables the adjusting cavity to be integrated with the suspension, and the adjusting cavity is prevented from being arranged on a vehicle body. The whole suspension structure takes a mandrel as a core, and main structures such as an adjusting cavity, a blade shock absorber, a torsion bar spring, a longitudinal arm and the like are integrally arranged. The space of the vehicle body is greatly saved, so that the integration level of a suspension system is higher, the structure is compact, and the space utilization rate is higher; the torsion bar spring and the blade damper are innovatively and comprehensively designed, and the functions of the torsion bar spring and the blade damper are effectively improved. The torsion bar spring has the functions of driving the longitudinal arm to rotate in the vehicle body height adjusting module and damping in the damping module. The use of blade dampers allows the suspension system to have the new ability to change the height of the vehicle body without losing damping performance. The adjustable height of the vehicle body means that the trafficability of the vehicle under complex road conditions of various road conditions is greatly improved. The novel matching structure design of the torsion bar spring and the blade damper improves the effect of the torsion bar spring and the blade damper on the suspension.
Drawings
FIG. 1 is a schematic structural diagram of a suspension system for achieving body height adjustment in an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the connection of the vane of the adjustment chamber to the spindle in an embodiment of the present invention;
FIG. 4 is a schematic view of the connection of the regulation chamber to the oil pressure control system in the embodiment of the present invention;
FIG. 5 is a schematic structural view of a shell of a blade damper according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a vane damper sleeve in an embodiment of the present invention;
FIG. 7 is a schematic structural view of a blade damper according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a vehicle body having a suspension system for effecting height adjustment of the vehicle body in an embodiment of the present invention;
in the figure, 1-mandrel, 2-first trailing arm, 3-second trailing arm, 4-first torsion bar spring, 5-second torsion bar spring, 6-first blade damper, 7-second blade damper, 8-adjusting cavity, 9-adjusting cavity blade, 10-oil pump, 11-oil tank, 12-power supply, 13-single chip microcomputer, 14-angle sensor, 15-first oil inlet, 16-second oil inlet, 17-first oil outlet, 18-second oil outlet, 19-pressure relief valve, 20-first electromagnetic valve, 21-second electromagnetic valve, 22-third electromagnetic valve, 23-fourth electromagnetic valve, 24-adjusting cavity shell, 25-adjusting cavity clapboard, 26-first sealing cover, 27-second sealing cover, 28-first shock absorber housing, 29-first shock absorber end cap, 30-first shock absorber sleeve, 31-second shock absorber housing, 32-second shock absorber end cap, 33-second shock absorber sleeve, 34-first shock absorber diaphragm, 35-second shock absorber diaphragm, 36-first shock absorber blade, 37-second shock absorber blade, 38-damping hole, 39-enlarged diameter end, 40-spline, 41-suspension system for achieving height adjustment of vehicle body, 42-vehicle body, 43-wheel.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 8, a suspension system for adjusting a height of a vehicle body according to an embodiment of the present invention includes a spindle 1, two ends of the spindle 1 are fixed to the vehicle body, the spindle 1 is sequentially sleeved with a first trailing arm 2, a first blade damper 6, an adjustment cavity 8, a second blade damper 7 and a second trailing arm 3 to form a height adjustment module, output ends of two ends of the adjustment cavity 8 are respectively connected to the first blade damper 6 and the second blade damper 7, the first blade damper 6 and the second trailing arm 3 are connected to a first torsion bar spring 4, a second torsion bar spring 5 is connected between the second blade damper 7 and the first trailing arm 2, lower ends of the first trailing arm 2 and the second trailing arm 3 are used for being connected to a vehicle wheel, the adjustment cavity 8 drives the first blade damper 6 and the second blade damper 7 to rotate, the first blade damper 6 and the second blade damper 7 drive the second trailing arm 3 and the first torsion bar spring 5 to rotate respectively The longitudinal arm 2 rotates around the mandrel 1; the height difference between the wheel at the lower end of the first longitudinal arm 2 and the wheel at the lower end of the second longitudinal arm 3 and the mandrel 1 is adjusted, the automatic adjustment of the height of the vehicle body is realized, the function of bearing and buffering the impact of a road surface on the vehicle body is realized through the matching of the first torsion bar spring 4 and the second torsion bar spring 5 and the first blade shock absorber 6 and the second blade shock absorber 7, the vibration damping module has the function of damping the vehicle body, and in the running process of the vehicle, the blade shock absorbers and the torsion bar springs jointly form a vibration damping module to play a role of damping the vibration.
The adjusting cavity 8 consists of a shell and sealing covers at two ends, the shell of the adjusting cavity is sleeved on the mandrel 1,
the adjusting cavity 8 consists of an adjusting cavity shell 24, a first sealing cover 26, a second sealing cover 27 and a part of the mandrel 1; the adjusting cavity shell 24 is sleeved on the mandrel 1, and a first sealing cover 26 and a second sealing cover 27 are arranged on two sides of the adjusting cavity shell; both ends are connected with the shock absorber shell through flanges. The shaft parts of the sealing covers at two sides are provided with framework oil seals, the outer ring is provided with a sealing ring to realize the sealing of the cavity body and realize the sealing between the adjusting cavity 8 and the first blade vibration absorber 6 and the second blade vibration absorber 7; a framework oil seal and a sealing ring are arranged on a first sealing cover 26 and a second sealing cover 27 to realize a sealing effect, an adjusting cavity partition plate 25 on an adjusting cavity shell 24 and an adjusting cavity blade 9 on a mandrel 1 divide the inner part of the adjusting cavity into two cavities, good sealing performance is realized between the two cavities, oil is filled in the two cavities, and a first oil inlet 15, a second oil inlet 16, a first oil outlet 17 and a second oil outlet 18 are arranged on the shells corresponding to the two cavities; the oil inlet and the oil outlet are connected with an oil pressure control system through an oil pipe; when the height adjusting module does not work, the adjusting cavity 8 is locked by oil liquid and is kept relatively fixed with the position of the mandrel 1; when the oil pressure control system works, the two cavities generate pressure difference, so that the adjusting cavity shell 24 is driven to rotate.
The oil pressure control system comprises an oil circuit unit and a circuit unit, wherein the oil circuit unit comprises an oil pump 10, an oil tank 11, a pressure release valve 19, a first electromagnetic valve 20, a second electromagnetic valve 21, a third electromagnetic valve 22 and a fourth electromagnetic valve 23; the oil pump 10 is connected with a first oil inlet 15 and a second oil inlet 16 of the adjusting cavity 8 through oil pipes, a first electromagnetic valve 20 is connected between the first oil inlet 15 and the oil outlet of the oil pump 10, a second electromagnetic valve 21 is connected between the second oil inlet 16 and the oil outlet of the oil pump 10, and the first electromagnetic valve 20 and the second electromagnetic valve 21 are respectively used for controlling the opening and closing of the first oil inlet 15 and the second oil inlet 16; meanwhile, a pressure release valve 19 is connected between an oil inlet of the oil tank and an oil outlet of the oil pump, and the oil outlet of the oil tank is connected with an oil inlet of the oil pump; the first oil outlet 17 and the second oil outlet 18 of the adjusting cavity 8 are connected to an oil inlet of the oil tank 11, a third electromagnetic valve 22 is connected between the first oil outlet 17 of the adjusting cavity 8 and the oil inlet of the oil tank, a fourth electromagnetic valve 23 is connected between the second oil outlet 18 of the adjusting cavity 8 and the oil inlet of the oil tank, and the third electromagnetic valve 22 and the fourth electromagnetic valve 23 are used for controlling the opening and closing of the first oil outlet 17 and the second oil outlet 18; after the oil pump 10 works, a pair of electromagnetic valves on the oil inlet and the oil outlet are opened, and the interior of the adjusting cavity is divided into two cavities by the adjusting cavity blade 9 rigidly connected to the mandrel 1 and the adjusting cavity partition plate 25 rigidly connected to the adjusting cavity shell 24, so that pressure difference is formed. And since the spindle 1 is fixed, the adjustment chamber housing 24 rotates about the spindle 1. After the vehicle body is adjusted to a preset height, the electromagnetic valve is closed; the oil pump 10 is still in operation at this time, and the excess oil flows to the oil tank 11 through the relief valve 19; eventually, the oil pump 10 stops operating. After the oil pump works, the electromagnetic valve is opened, the oil pump injects oil into the adjusting cavity, the shell rotates by utilizing the oil pressure difference and the good sealing performance of the adjusting cavity, the electromagnetic valve is closed after the automobile body is adjusted to the preset height, the oil quantity in the adjusting cavity is locked, and the automobile body is locked in height. The oil pump continues to work, and pump oil flows to the oil tank through the pressure relief valve. And finally the oil pump stops working.
The circuit unit comprises a power supply, a single chip microcomputer and an angle sensor, wherein the power supply is respectively connected with the single chip microcomputer and the oil pump, the angle sensor is arranged on the adjusting cavity shell, the single chip microcomputer is respectively connected with the oil pump, the angle sensor and each electromagnetic valve, and the single chip microcomputer detects the rotating angle of the adjusting cavity shell through the angle sensor and controls the operation of each electromagnetic valve and the oil pump; when the vehicle body is adjusted to a preset height, namely the adjusting cavity shell rotates for a preset angle, the angle sensor on the adjusting cavity shell transmits a signal to the single chip microcomputer, and the single chip microcomputer controls the electromagnetic valves to be closed and the oil pump to stop working; the singlechip 13 transmits signals to control the opening and closing of the electromagnetic valve and the working state of the oil pump. When the vehicle body is adjusted to a preset height, namely the adjusting cavity shell 24 rotates for a preset angle, the angle sensor 14 on the adjusting cavity shell 24 transmits a signal to the single chip microcomputer 13, and the single chip microcomputer 13 controls the electromagnetic valve to be closed and the oil pump to stop working.
Further, in the height adjusting module, the oil pressure pushes the adjusting cavity shell 24 to rotate, so as to drive the first blade damper 6 and the second blade damper 7 to rotate, and then drive the first torsion bar spring 4 and the second torsion bar spring 5 to rotate, so that the first longitudinal arm 2 and the second longitudinal arm 3 rotate, and finally the height of the vehicle body is adjusted; the torsion bar spring comprises a first torsion bar spring 5 and a second torsion bar spring 6, and two sections of each torsion bar spring are respectively connected with the shock absorber shell and the trailing arm. When the trailing arm is vibrated, the torsion bar spring is twisted back and forth to generate elastic deformation so as to buffer the ground impact. When the roadblock disappears and the trailing arm does not bear resistance any more, the torsion bar spring restores to the original state.
Further, the first blade damper and the second blade damper have the same structure, and each of the first blade damper and the second blade damper comprises a damper shell, a damper sleeve and a damper end cover, namely a first damper shell 28, a second damper shell 31, a first damper sleeve 30, a second damper sleeve 33, a first damper end cover 29 and a second damper end cover 32; the first damper sleeve 30 and the second damper sleeve 33 are fixedly connected to the first trailing arm 2 and the second trailing arm 3, respectively, by a spline 40. The first damper shell 28 and the second damper shell 31 are both rigidly connected with a first damper partition 34 and a second damper partition 35; the first damper sleeve 30 and the second damper sleeve 33 are rigidly connected with a first damper blade 36 and a second damper blade 37; the first damper end cover 29 and the second damper end cover 32 ensure that oil in the blade damper cannot leak; when the vehicle runs and encounters an obstacle, the first trailing arm 2 and the second trailing arm 3 rotate in a reciprocating mode to drive the first shock absorber sleeve 30 and the second shock absorber sleeve 33 to rotate, at the moment, oil passes through the damping holes 38 in the first shock absorber blade 36 and the second shock absorber blade 37 to generate damping force, and finally the shock absorption effect is achieved.
Further, the inner end of the first damper sleeve is enlarged to an enlarged diameter end 39, and the outer end is connected to the first trailing arm 2 by a spline 40. A tapered roller bearing is arranged in the diameter expansion end 39, and a gap is reserved between the inner end surface of the first shock absorber sleeve 30 and the first sealing cover 26, so that the tapered roller bearing can bear the axial force; and a seal ring is installed between the outer surface of the enlarged diameter end 39 and the inner surface of the first damper housing 28 to prevent the damping oil from flowing out. The second damper sleeve 33 is of identical construction to the first damper sleeve 30.
Further, the lower ends of the first trailing arm 2 and the second trailing arm 3 are connected to the wheel, and transmit wheel vibrations to the suspension system.
Furthermore, an adjusting cavity in the height adjusting module is sleeved in the middle of the mandrel, the oil circuit unit and the circuit unit are placed on the platform of the automobile body, the whole shell is controlled to rotate around the mandrel by changing oil pressure in the adjusting cavity, and the whole shell drives the longitudinal arm to rotate through a torsion bar spring fixedly connected with the shell, so that the height of the automobile body is adjusted.
The working principle of the invention is as follows: the height adjusting module controls the adjusting cavity shell to rotate through the control system in the figure 3, so that the longitudinal arm is driven to rotate, and finally the height of the vehicle body is adjusted. The vibration reduction module adopts a blade vibration reducer and a torsion bar spring for vibration reduction.
The suspension system for realizing the height adjustment of the vehicle body in the first embodiment provided by the invention comprises a height adjusting module and a damping module. The height adjusting module comprises a part of core shaft, an adjusting cavity, an oil circuit unit and a circuit unit. The damping module comprises a blade damper, a torsion bar spring and a trailing arm.
When the vehicle runs, the height of the vehicle body needs to be adjusted when complex road conditions occur, and the running stability and the trafficability characteristic are improved. In fig. 3, in the case that the adjustment chamber housing needs to rotate counterclockwise, the single chip 13 controls the oil pump 10 to start pumping oil, and in order to ensure that the adjustment chamber housing 24 does not rotate due to gravity after the solenoid valve is opened, the oil pump 10 starts pumping oil before the solenoid valve is opened. Before the solenoid valve is opened, excess oil flows into the tank through the relief valve 19. Then, the second solenoid valve 21 at the second oil inlet 16 and the third solenoid valve 22 at the first oil outlet 17 are opened, and the pressure of the right side chamber is greater than the pressure of the left side chamber at this time, so that the adjustment chamber housing 24 starts to rotate counterclockwise, and the first torsion bar spring 4 and the second torsion bar spring 5 are driven to rotate, so that the first trailing arm 2 and the second trailing arm 3 are driven to rotate, and the height of the vehicle body is adjusted. After the rotation to the required angle, the angle sensor 14 on the adjusting cavity shell transmits a signal to the single chip microcomputer 13, and the single chip microcomputer 13 controls the second electromagnetic valve 21 on the second oil inlet 16 and the third electromagnetic valve 22 on the first oil outlet 17 to be closed. In order to pump oil sufficiently in the adjusting cavity, the oil pump needs to continue to operate after the electromagnetic valve is closed. After the electromagnetic valve is closed and before the oil pump 10 stops running, the pressure in the oil pipe rises, when the pressure of the oil pipe reaches the set value of the pressure relief valve 19, the pressure relief valve 19 is opened, and redundant oil pumped by the oil pump 10 flows to the oil tank 11 through the oil path. The height reverse adjustment can be realized only by opening the other pair of electromagnetic valves.
When a vehicle runs in an obstacle, taking the first vibration damping module as an example, because the first vibration damping sleeve 30 is fixedly connected with the first trailing arm 2, the first trailing arm 2 rotates when encountering the obstacle to drive the first vibration damping sleeve 30 to rotate. The first damper housing 28 is fixed to the adjustment chamber housing 24, and the adjustment chamber housing 24 is locked by oil, so that the first damper housing 28 is fixed, and the first damper partition 34 and the second damper partition 35, which are rigidly connected to each other inside thereof, are also fixed. When the first damper sleeve 30 rotates, damping oil in the first blade damper 6 generates a damping force through the damping hole 38, and a damping action is performed. Meanwhile, the first longitudinal arm 2 rotates when encountering obstacles, and the first torsion rod spring 4 fixedly connected with the first longitudinal arm 2 and the second blade damper 7 generates elastic deformation to realize a damping function. When the vehicle runs flat, the first trailing arm 2 is not subjected to resistance, and the first torsion bar spring 4 is restored to the original state. The damping principle of the second damping module is the same as the damping principle described above.
The above is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereby, and therefore, the present invention is not limited by the scope of the claims.
Claims (10)
1. The utility model provides a realize suspension system of automobile body altitude mixture control, including two shock absorbers and torsion bar spring, arrange about two shock absorbers are, the outer end of the left and right sides shock absorber all is connected with the trailing arm, the lower extreme of trailing arm is used for being connected with the wheel, a serial communication port, it still includes dabber and regulation chamber, the both ends of dabber are fixed in on the automobile body, it locates on the dabber to adjust the chamber cover, the shock absorber is the blade shock absorber, the left and right sides in regulation chamber is connected with two blade shock absorbers respectively, blade shock absorber and trailing arm all overlap and locate on the dabber, all be connected with torsion bar spring between left side blade shock absorber and the right side trailing arm and between right side blade shock absorber and the left side trailing arm, it drives both sides blade shock absorber and rotates to adjust the chamber.
2. The suspension system for achieving vehicle body height adjustment according to claim 1, wherein the trailing arms on the left and right sides, the blade dampers, and the torsion bar springs are symmetrically arranged on the spindle centering on the adjustment chamber.
3. The suspension system for realizing the height adjustment of the vehicle body as claimed in claim 1, wherein an oil pressure control system is connected to the adjusting chamber, the adjusting chamber comprises an adjusting chamber shell and an inner core sleeve, the adjustable blade-oil pressure regulating device comprises a regulating cavity blade and a regulating cavity partition plate, wherein the regulating cavity blade is arranged in a regulating cavity shell in a sleeved mode, the regulating cavity blade is connected with an inner core sleeve, the inner core sleeve is fixedly sleeved on a core shaft, the regulating cavity partition plate is connected with the regulating cavity shell, the regulating cavity blade and the regulating cavity partition plate divide an inner cavity of the regulating cavity shell into two parts of cavities together, the two parts of cavities are respectively provided with an oil inlet and an oil outlet, the oil inlet and the oil outlet are respectively connected with an oil pressure control system, the oil pressure control system regulates oil pressure in the two parts of cavities through the oil inlet and the oil outlet, so that pressure difference is formed between the two parts of cavities in the.
4. The suspension system for realizing the height adjustment of the vehicle body according to claim 3, wherein the blade damper comprises a damper housing and a damper sleeve, the damper sleeve is sleeved in the damper housing, the damper sleeve is sleeved on the mandrel, the damper housing is fixedly connected with the adjustment chamber housing, the outer end of the damper sleeve is connected with the trailing arm on the same side, the damper housing is connected with the trailing arm on the opposite side through a torsion bar spring, and a chamber between the damper housing and the damper sleeve is filled with damping oil.
5. The suspension system for realizing the height adjustment of the vehicle body as claimed in claim 4, wherein the outer ring of the damper sleeve is provided with a damper blade, and the damper blade is provided with a plurality of damper holes.
6. The suspension system for achieving vehicle body height adjustment according to claim 4, wherein a shock absorber partition is arranged between the shock absorber casing and the shock absorber sleeve, and the shock absorber partition is fixedly connected with the shock absorber casing.
7. The suspension system for achieving vehicle body height adjustment according to claim 4, wherein a sealing cover is connected between the damper housing and the adjustment chamber housing, and oil isolation between the adjustment chamber housing and the damper chamber is achieved through the sealing cover.
8. The suspension system for achieving vehicle body height adjustment according to claim 4, wherein the inner end of the damper sleeve is connected to the spindle through a bearing, the outer end of the damper sleeve is connected to the corresponding trailing arm through a spline, and the trailing arm is sleeved to the spindle through a bearing.
9. The suspension system for realizing vehicle body height adjustment according to claim 3, wherein the oil pressure control system comprises an oil pump and an oil tank, an oil outlet of the oil pump is respectively connected with two oil inlets of the adjustment cavity through a solenoid valve, the opening and closing of the two oil inlets of the adjustment cavity are controlled through the solenoid valve, a pressure release valve is connected between an oil inlet of the oil tank and an oil outlet of the oil pump, an oil inlet of the oil tank is respectively connected with the two oil outlets of the adjustment cavity through the solenoid valve, the opening and closing of the two oil outlets of the adjustment cavity are controlled through the solenoid valve, and the oil outlet of the.
10. The suspension system for realizing vehicle body height adjustment according to claim 9, wherein the oil pressure control system further comprises a power supply, a single chip microcomputer and an angle sensor, the power supply is respectively connected with the single chip microcomputer and the oil pump, the angle sensor is arranged on the adjustment cavity housing, the single chip microcomputer is respectively connected with the oil pump, the angle sensor and each electromagnetic valve, and the single chip microcomputer detects the rotation angle of the adjustment cavity housing through the angle sensor to control the operation of each electromagnetic valve and the oil pump.
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| CN201811403567.8A CN109203896B (en) | 2018-11-23 | 2018-11-23 | Suspension system for realizing height adjustment of vehicle body |
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| CN201811403567.8A CN109203896B (en) | 2018-11-23 | 2018-11-23 | Suspension system for realizing height adjustment of vehicle body |
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| CN109203896B true CN109203896B (en) | 2020-06-09 |
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| CN109591533B (en) * | 2019-01-17 | 2021-03-16 | 武汉市炫能清洁能源科技有限公司 | Arm type torsion type active suspension |
| CN110329026B (en) * | 2019-06-26 | 2021-05-04 | 武汉理工大学 | Active energy feedback type suspension with two independently-adjusted arms and postures |
| CN110562001A (en) * | 2019-08-30 | 2019-12-13 | 武汉理工大学 | Walking type height intelligent adjusting carrier |
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| GB740153A (en) * | 1949-12-28 | 1955-11-09 | Ferguson Res Ltd Harry | Improvements in or relating to engine driven vehicles |
| JPS58209605A (en) * | 1982-05-31 | 1983-12-06 | Mazda Motor Corp | Rear suspension for car |
| US4962834A (en) * | 1989-06-14 | 1990-10-16 | Walter K. Napoleon | Threaded removable end mount system for shock absorbers |
| FR2961783B1 (en) * | 2010-06-23 | 2012-08-03 | Veleance | DEVICE FOR MONITORING THE INCLINATION OF A FRAME MOUNTED ON A RECLINING BEARING TRAIN |
| CN202463501U (en) * | 2011-11-29 | 2012-10-03 | 南京农业大学 | Torsion bar spring suspension |
| CN104029578B (en) * | 2014-07-02 | 2016-08-24 | 南京工程学院 | A kind of automobile suspension system |
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