WO2020077727A1 - 车体主动升降平衡系统 - Google Patents

车体主动升降平衡系统 Download PDF

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Publication number
WO2020077727A1
WO2020077727A1 PCT/CN2018/116295 CN2018116295W WO2020077727A1 WO 2020077727 A1 WO2020077727 A1 WO 2020077727A1 CN 2018116295 W CN2018116295 W CN 2018116295W WO 2020077727 A1 WO2020077727 A1 WO 2020077727A1
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Prior art keywords
oil
lifting
oil chamber
balancing
chamber
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PCT/CN2018/116295
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English (en)
French (fr)
Inventor
池君臣
赖胜利
习兴明
陈亮军
曾龙
王保利
易三念
徐珺梁
Original Assignee
湖北火鑫消防车辆装备有限公司
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Publication of WO2020077727A1 publication Critical patent/WO2020077727A1/zh

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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
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • 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
    • 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
    • B60G17/06—Characteristics of dampers, e.g. mechanical dampers
    • B60G17/08—Characteristics of fluid dampers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/06—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid
    • 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
    • B60G2202/20—Type of damper
    • B60G2202/24—Fluid damper

Definitions

  • the invention belongs to the field of vehicle body balancing devices, in particular, it is a vehicle body active lifting balance system.
  • each wheel is provided with shock absorption to reduce the bumps of the vehicle body during driving. happensing.
  • each damping is an independent structure, and the length of the damping is a fixed value in a free state, and cannot be adjusted, nor can it adjust itself according to the change of road conditions.
  • the purpose of the present invention is to provide a vehicle body active lifting balance system that overcomes the deficiencies in the prior art.
  • a vehicle body active lifting balance system includes a plurality of support springs, a plurality of shock absorption and oil supply mechanisms, the plurality of support springs and the plurality of shock absorptions are arranged in groups corresponding to each other, and the upper ends of the plurality of support springs are all
  • An upper mounting seat is fixedly connected, and a lower mounting seat is fixedly connected to the lower ends of the plurality of support springs, an upper end surface of the upper mounting seat is provided with a first cylindrical piston extending upward, and the first cylindrical piston jacket has a first balance An oil chamber, the outer wall of the first cylindrical piston is tightly connected to the inner wall of the first balanced oil chamber, and two pipeline interfaces are provided at the bottom of the first balanced oil chamber;
  • the plurality of first balancing oil chambers are connected in series to form a closed annular oil passage
  • the lower mounting base includes a first lifting oil chamber and a base, the first lifting oil chamber extends into the support spring, the bottom of the outer wall of the first lifting oil chamber is fixedly connected to the lower end of the support spring, and the upper end surface of the base
  • a second cylindrical piston extending upward is provided, the second cylindrical piston is inserted into the first lifting oil chamber, an oil injection hole is opened on the second cylindrical piston, and the oil injection hole extends axially through the second cylindrical piston;
  • the first lifting oil chambers on the plurality of support springs are arranged in parallel;
  • a second balancing oil chamber is sleeved at the end of the damping piston rod, the outer wall of the end of the damping piston rod is tightly connected to the inner wall of the second balancing oil chamber, and two pipeline connections are provided at the bottom of the second balancing oil chamber ;
  • the plurality of second balancing oil chambers are connected in series to form a closed annular oil passage
  • a second lifting oil chamber is sleeved on the end of the damping hydraulic cylinder, the outer wall of the end of the damping hydraulic cylinder is tightly connected with the inner wall of the second lifting oil chamber, and a pipeline interface is provided at the bottom of the second lifting oil chamber;
  • the oil supply mechanism is used to supply oil to the first lifting oil chamber and the second lifting oil chamber.
  • the oil supply mechanism is used to supply hydraulic oil and other media into each of the first lifting oil chamber and the second lifting oil chamber, and through the medium supply to extend the length of the support spring and shock absorption; when the vehicle is traveling When one or more wheels are vacated during the process, the first lifting oil chamber and the second lifting oil chamber corresponding to each vacant wheel will be supplied with oil through the oil supply mechanism, so that the length of the support spring and shock absorption will be extended to push the wheel away from the car To make the wheels approach the road, reduce the height difference between the wheels and the road when they fall back, and reduce the impact after landing; at the same time, when one or more wheels are in the pit suspended state, by raising to the first lifting oil chamber and the second lifting
  • the oil injection in the oil chamber can also extend the length of the support spring and shock absorption, which can make the floating wheel contact with the road surface and make the floating wheel out of the floating state; at the same time, when a certain wheel or multiple wheels are emptied, the load of the floating wheel will increase, will The
  • first lifting oil chamber on the support spring and the second lifting oil chamber on the shock absorber arranged in groups are arranged in parallel, and multiple groups of the first lifting oil chamber and the second lifting oil chamber are connected in parallel Connect to the oil outlet of the oil supply mechanism.
  • the supporting springs and shock absorbers arranged in groups are respectively arranged in parallel with the first lifting oil chamber and the second lifting oil chamber in groups, which is convenient for synchronous control by the oil supply mechanism.
  • the lifting mechanism includes an oil storage tank and an oil pump.
  • the oil inlet of the oil pump is connected to the liquid level of the oil storage tank once, and the oil outlet of the oil pump is connected in parallel with multiple sets of the first lifting oil chamber and the second lifting oil chamber. Connected.
  • a plurality of sets of the first lifting oil chamber and the second lifting oil chamber are provided with electromagnetic sub-control valves before being connected in parallel.
  • the opening and closing state of the independent pipelines after the parallel connection of the first lifting oil chamber and the second lifting oil chamber of each group is controlled.
  • the electromagnetic branch control valves corresponding to the first lifting oil chamber and the second lifting oil chamber of each group are The normally closed state facilitates the supply of hydraulic oil to the oil chambers of the first lift oil chamber and the second lift oil chamber of each group.
  • an electromagnetic main control valve is provided on the outlet pipe of the oil pump.
  • the oil output of the oil pump can be controlled by setting the electromagnetic main control valve, and the oil output of the oil pump can be controlled by the electromagnetic main control valve.
  • each group of the first lifting oil chamber and the second lifting oil chamber is connected with an electromagnetic return valve and an oil return line is connected to the oil storage tank through the oil return line, and the oil return line is provided with a shunt pressure relief valve.
  • An oil return line is provided to facilitate the return of hydraulic oil from each of the first lift oil chamber and the second lift oil chamber into the oil storage tank, and the shunt pressure relief valve on the oil return line is normally closed to prevent the oil pump from supplying oil When the oil path is relieved, it is convenient for each group of the first lifting oil chamber and the second lifting oil chamber to release pressure, and the length of the support spring and the shock absorption are restored by the pressure relief.
  • the oil outlet of the oil pump is connected with an oil return line and communicates with an oil storage tank through the oil return line, and a main pressure relief valve is provided on the oil return line.
  • the oil outlet of the oil pump is connected to the oil storage tank through the oil return line and a main pressure relief valve is provided on the oil return line.
  • the main pressure relief valve is normally open. After the oil pump pumps out the oil, the oil return line returns to the oil storage tank. When a group of first lifting oil chamber and second lifting oil chamber needs to be supplied with oil, the main pressure relief valve will be closed to open the corresponding electromagnetic sub-control valve, and the corresponding first lifting oil chamber and second lifting oil chamber will be supplied with oil. .
  • a balance lock is provided between two adjacent first balance oil chambers and between two adjacent second balance oil chambers, the balance lock includes a housing and a movable slider, the The movable slider is provided in the casing, and the outer wall of the movable slider is hermetically connected to the inner wall of the casing, and the two ends of the casing are respectively connected to the interface provided at the bottom of the oil chambers of the two adjacent balancing units through pipes.
  • two sides of the movable slider are provided with return springs, and the two ends of the two return springs respectively abut the end surfaces on both sides of the movable slider and the inner walls on both sides of the housing.
  • the movable slider is arranged in the casing and the outer wall of the movable slider is tightly connected with the inner wall of the casing.
  • the two sides of the movable slider abut against the two ends of the casing through two return springs.
  • the pipeline interface of the adjacent first balancing oil chamber or second balancing oil chamber, the media in the two first balancing oil chambers or the second balancing oil chamber are respectively connected between the two sides of the movable slider and the housing, when one of them
  • the medium in the first balancing oil chamber or the second balancing oil chamber flows into the housing, it will push the movable slider to move.
  • the movable slider moves, it will overcome the elastic force of the return spring on one side, reducing the respective first balancing oil chamber or the second balance Sensitivity of force transmission between oil chambers.
  • an adjustment assembly is provided on both sides of the housing, the adjustment assembly includes a push plate, a push rod, a pressure plate, a screw, and a compression nut, the push plate is provided between the inner wall of the housing and the end of the return spring , One end of the push rod penetrates the side wall of the casing and is fixedly connected to the push plate, the other end of the push rod is connected to the pressure plate, the screw penetrates the pressure plate and is fixedly connected to the outer wall of the casing, and the extrusion nut is sleeved on the screw It is arranged outside and on the side of the pressing plate facing away from the casing.
  • the squeeze nut is sleeved on the screw.
  • the squeeze nut moves axially on the screw, it will push the pressure plate to move, and then the push plate will move the push plate inward to squeeze the end of the return spring, which can initially retract the return spring. Adjust the degree, and then adjust the movable slider to overcome the critical value of the return spring elasticity.
  • the present invention can supply oil to the first lifting oil chamber and the second lifting oil chamber through the oil supply mechanism to extend the length of the support spring and shock absorption, and reduce the height difference from the road surface when the wheels fall after emptying. Reduce the impact after landing; at the same time, it can also make the corresponding multiple first balancing oil chambers and multiple second balancing oil chambers squeeze each other through the pressure difference of multiple wheels to balance the load between the wheels.
  • FIG. 1 is a schematic structural diagram of an active lifting balance system of a vehicle body of the present invention
  • Figure 2 is a schematic diagram of the structure of the balance lock
  • FIG. 3 is a schematic diagram of the installation structure of the present invention in an independent suspension application
  • FIG. 4 is a schematic view of the installation structure of the present invention in the application of torsion beam suspension
  • FIG. 5 is a schematic diagram of the installation structure of the present invention in the rear axle application
  • Support spring 100 upper mount 110, first cylindrical piston 111, first balance oil chamber 112, lower mount 120, first lifting oil chamber 121, base 122, second cylindrical piston 123, shock absorber 200, second Balance oil chamber 210, second lift oil chamber 220, electromagnetic sub-control valve 230, electromagnetic main control valve 240, shunt pressure relief valve 250, main circuit pressure relief valve 260, single-stage pressure limiting valve 270, oil supply mechanism 300, oil pump 310, an oil storage tank 320, a balance lock 400, a housing 410, a movable slider 420, a return spring 430, an adjustment assembly 440, a push plate 441, a push rod 442, a pressure plate 443, a screw 444, a compression nut 445, and an oil injection hole 450.
  • a vehicle body active lifting balance system includes a plurality of support springs 100, a plurality of shock absorbers 200 and a fuel supply mechanism 300, the plurality of support springs 100 and a plurality of shock absorbers 200- One set is corresponding to each other.
  • the upper ends of the plurality of support springs 100 are fixedly connected to the upper mounting base 110, the lower ends of the plurality of support springs 100 are fixedly connected to the lower mounting base 120, and the upper end surface of the upper mounting base 110 is provided with An upwardly extending first cylindrical piston 111, the first cylindrical piston 111 is coated with a first balancing oil chamber 112, the outer wall of the first cylindrical piston 111 is tightly connected with the inner wall of the first balancing oil chamber 112, the first balancing oil
  • the bottom of the chamber 112 is provided with two pipeline interfaces; the plurality of first balancing oil chambers 112 are connected in series to form a closed annular oil passage; the lower mounting base 120 includes a first lifting oil chamber 121 and a base 122, the first The lifting oil chamber 121 extends into the support spring 100.
  • the bottom of the outer wall of the first lifting oil chamber 121 is fixedly connected to the lower end of the support spring 100.
  • the upper end surface of the base 122 is provided with a second cylindrical piston 123 extending upward.
  • the two cylindrical piston 123 is inserted into the first lifting oil chamber 121
  • the second cylindrical piston 123 is provided with an oil injection hole, and the oil injection hole axially penetrates the second cylindrical piston 123;
  • the first lifting oil chambers 121 on the plurality of support springs 100 are arranged in parallel;
  • a second balancing oil chamber 210 is sleeved at the end of the rod, the outer wall of the end of the piston rod of the shock absorber 200 is tightly connected to the inner wall of the second balancing oil chamber 210, and two pipeline interfaces are provided at the bottom of the second balancing oil chamber 210;
  • the plurality of second balancing oil chambers 210 are connected in series to form a closed annular oil path; the end of the shock absorbing 200
  • the first lifting oil chamber 121 on the support spring 100 and the second lifting oil chamber 220 on the shock absorber 200 arranged in groups are arranged in parallel, and multiple groups of the first lifting oil chamber 121 and the second lifting oil chamber After 220 is connected in parallel, it is connected to the oil outlet of the oil supply mechanism 300.
  • the lifting mechanism includes an oil storage tank 320 and an oil pump 310, the oil inlet of the oil pump 310 communicates with the liquid level of the oil storage tank 320, the oil outlet of the oil pump 310 and multiple sets of the first lifting oil chamber 121 and the second lifting oil
  • the chambers 220 are connected in parallel.
  • an electromagnetic sub-control valve 230 is provided before multiple sets of the first lifting oil chamber 121 and the second lifting oil chamber 220 are connected in parallel.
  • An electromagnetic main control valve 240 is provided on the outlet pipeline of the oil pump 310.
  • Each group of the first lifting oil chamber 121 and the second lifting oil chamber 220 and the electromagnetic sub-control valve 230 is connected with an oil return line and communicates with the oil storage tank 320 through the oil return line.
  • the oil return line is provided with a shunt drain ⁇ ⁇ 250 ⁇ Pressure valve 250.
  • An oil return line is connected to the oil outlet of the oil pump 310 and communicates with the oil storage tank 320 through the oil return line.
  • a main pressure relief valve 260 is provided on the oil return line.
  • a balance lock 400 is provided between two adjacent first balance oil chambers 112 and two adjacent second balance oil chambers 210, and the balance lock 400 includes a housing 410 and a movable slider 420 ,
  • the movable slider 420 is provided in the housing 410, the outer wall of the movable slider 420 is hermetically connected with the inner wall of the housing 410, and the two ends of the housing 410 are connected to each other on two adjacent balancing units through pipes Interface at the bottom of the oil compartment.
  • the two sides of the movable slider 420 are provided with return springs 430, and the two ends of the two return springs 430 respectively abut the end surfaces on both sides of the movable slider 420 and the inner walls on both sides of the housing 410.
  • the adjustment assembly 440 is provided on both sides of the housing 410.
  • the adjustment assembly 440 includes a push plate 441, a push rod 442, a pressure plate 443, a screw 444, and an extrusion nut 445.
  • the push plate 441 is provided on the inner wall of the housing 410 Between the end of the return spring 430, one end of the push rod 442 penetrates the side wall of the housing 410 and is fixedly connected to the push plate 441, the other end of the push rod 442 is connected to the pressing plate 443, and the screw 444 penetrates the pressing plate 443 and It is fixedly connected to the outer wall of the housing 410.
  • the extrusion nut 445 is sleeved on the screw 444 and is disposed on the side of the pressing plate 443 facing away from the housing 410.
  • the oil supply mechanism 300 is used to supply hydraulic fluid and other media into each of the first lifting oil chamber 121 and the second lifting oil chamber 220, and is supplied through the medium to extend the length of the support spring 100 and the shock absorber 200 ;
  • the first lifting oil chamber 121 and the second lifting oil chamber 220 corresponding to each vacant wheel will be supplied with oil through the oil supply mechanism 300, so that the support spring 100 and the shock absorber
  • the length extension of 200 pushes the wheels away from the car body, bringing the wheels closer to the road surface, reducing the difference in height from the road surface when the wheels fall back, and lowering the impact after landing;
  • the oil filling in the first lifting oil chamber 121 and the second lifting oil chamber 220 can also extend the length of the support spring 100 and the shock absorber 200, which can bring the floating wheel into contact with the road surface and make the floating wheel out of the suspended state;
  • the load for the suspended wheels will increase, which will press the corresponding first
  • the support spring 100 and the shock absorber 200 arranged in groups are respectively provided with a first lifting oil chamber 121 and a second lifting oil chamber 220 connected in parallel in groups, which is convenient for synchronous control by the oil supply mechanism 300.
  • the electromagnetic sub-control valve 230 By controlling the electromagnetic sub-control valve 230, the opening and closing state of the independent pipelines after each group of the first lifting oil chamber 121 and the second lifting oil chamber 220 are connected in parallel are controlled.
  • the electromagnetic sub-control valve 230 is normally closed, so as to facilitate the supply of hydraulic oil to the oil chambers of the first lift oil chamber 121 and the second lift oil chamber 220 of each group.
  • the electromagnetic main control valve 240 can control the oil output of the oil pump 310, and the electromagnetic main control valve 240 can control the oil output of the oil pump 310.
  • An oil return line is provided to facilitate the return of the hydraulic oil in each group of the first lifting oil chamber 121 and the second lifting oil chamber 220 into the oil storage tank 320, and the shunt pressure relief valve 250 on the oil return line is normally closed. It can prevent the oil channel 310 from releasing pressure when supplying oil, and it is convenient for each group of the first lifting oil chamber 121 and the second lifting oil chamber 220 to release pressure and restore the length of the support spring 100 and the shock absorber 200 by the pressure relief.
  • the oil outlet of the oil pump 310 is connected to the oil storage tank 320 through an oil return line and a main pressure relief valve 260 is provided on the oil return line.
  • the main pressure relief valve 260 is normally open.
  • the oil pump 310 returns the oil return line after returning the oil pump 310
  • the main pressure relief valve 260 is closed and the corresponding electromagnetic sub-control valve 230 is opened to the corresponding first The lift oil chamber 121 and the second lift oil chamber 220 supply oil.
  • the movable slider 420 is disposed in the housing 410 and the outer wall of the movable slider 420 is hermetically connected to the inner wall of the housing 410.
  • Both sides of the movable slider 420 abut two ends of the housing 410 through two return springs 430, respectively, and the movable slider 420
  • the two sides are connected to the pipeline interface of two adjacent first balancing oil chambers 112 or second balancing oil chambers 210 through pipelines, and the media in the two first balancing oil chambers 112 or second balancing oil chambers 210 are respectively connected
  • the movable slider 420 and the housing 410 when the medium in one of the first balancing oil chamber 112 or the second balancing oil chamber 210 flows into the housing 410, the movable slider 420 is pushed to move, and the movable slider 420 moves Will overcome the elastic force of the return spring 430 on one side, reducing the sensitivity of force transmission between each first balancing oil chamber 112 or the second balancing oil chamber 210.
  • the compression nut 445 is sleeved on the screw 444.
  • the compression nut 445 moves axially on the screw 444, it will push the pressure plate 443 to move, and then move the push plate 441 inward through the push rod 442 to squeeze the end of the return spring 430
  • the initial expansion and contraction of the return spring 430 can be adjusted, and then the critical value of the movable slider 420 to overcome the elastic force of the return spring 430 can be adjusted.
  • a single-stage pressure limiting valve 270 is connected in parallel with the shunt pressure relief valve 250.
  • the single-stage pressure limiting valve 270 can assist the shunt pressure relief valve 250 to return oil, and when the shunt pressure relief valve 250 fails, the hydraulic pressure in the oil chamber 120 can be normally released under the pressure of the vehicle body;
  • the pipeline connected to the lock 400 is filled with hydraulic oil, and both ends of the housing 410 are provided with normally closed oil injection holes 450.
  • FIGs 3, 4, and 5 are schematic views of the installation structure of the design scheme in the independent suspension system, torsion beam suspension system, and rear axle, respectively.
  • the present invention can supply oil into the first lifting oil chamber 121 and the second lifting oil chamber 220 through the oil supply mechanism 300 to extend the lengths of the support spring 100 and the shock absorber 200, and reduce when the wheels are emptied and fall back
  • the height difference with the road surface reduces the impact after landing; at the same time, it can also make the corresponding plurality of first balancing oil chambers 112 and the plurality of second balancing oil chambers 210 squeeze each other to balance each other through the pressure difference between multiple wheels The load between the wheels.

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  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

一种车体主动升降平衡系统，属于车体平衡装置领域，该车体主动升降平衡系统包括多个支撑弹簧（100）、多个减震（200）和供油机构（300），多个支撑弹簧（100）和多个减震（200）一一对应呈组设置，供油机构（300）向第一升降油室（121）和第二升降油室（220）内供油以延伸支撑弹簧（100）和减震（200）的长度，降低车轮腾空后落地冲击，同时，还能够通过多个第一平衡油室（112）和多个第二平衡油室（210）相互挤压，平衡各个车轮之间的负载。

Description

车体主动升降平衡系统 技术领域
本发明属于车体平衡装置领域，具体来说，是一种车体主动升降平衡系统。
背景技术
车辆通过车轮行驶，行驶过程中各个车辆与底面之间由于路况不同，其所受到的反作用力也将不同，易出现颠簸，为此，各个车轮均设置减震，降低车体在行驶过程中的颠簸情况。
但是，目前的减震系统中各个减震均为独立结构，且减震的长度为在自由状态下固定值，不能进行调节，也不能随路况变化自行调节。
发明内容
本发明目的是旨在提供一种克服现有技术中不足的车体主动升降平衡系统。
为实现上述技术目的，本发明采用的技术方案如下：
一种车体主动升降平衡系统，包括多个支撑弹簧、多个减震和供油机构，所述多个支撑弹簧和多个减震一一对应呈组设置，所述多个支撑弹簧上端均固定连接有上安装座，所述多个支撑弹簧下端均固定连接有下安装座，所述上安装座上端面设有向上延伸的第一柱状活塞，所述第一柱状活塞外套有第一平衡油室，所述第一柱状活塞外壁与第一平衡油室内壁密闭连接，所述第一平衡油室底部设有两个管路接口；
所述多个第一平衡油室串联呈闭合环形油路；
所述下安装座包括第一升降油室和基座，所述第一升降油室向支撑弹簧内延伸，所述第一升降油室外壁底部与支撑弹簧下端固定连接，所述基座上端面设有向上延伸的第二柱状活塞，所述第二柱状活塞插入第一升降油室内，所述第二柱状活塞上开有注油孔，所述注油孔轴向贯穿第二柱状活塞；
所述多个支撑弹簧上的第一升降油室并联设置；
所述减震活塞杆端部套有第二平衡油室，所述减震活塞杆端部外壁与第二平衡油室内壁密闭连接，所述第二平衡油室底部设有两个管路接口；
所述多个第二平衡油室串联呈闭合环形油路；
所述减震液压缸端部套有第二升降油室，所述减震液压缸端部外壁与第二升降油室内壁密闭连接，所述第二升降油室底部设有管路接口；
所述供油机构用于向第一升降油室和第二升降油室内供油。
采用上述技术方案的发明，供油机构用于将液压油等介质供入各个第一升降油室和第二升降油室内，且通过介质供入以延伸支撑弹簧和减震的长度；当车辆行驶过程中某一轮或多轮腾空时，将通过供油机构向各个腾空轮对应的第一升降油室和第二升降油室供油，使支撑弹簧和减震的长度延伸将车轮推离车体，使车轮向路面靠近，降低车轮回落时与路面的高度差，降低腾空后落地冲击；同时，当某一轮或多轮处于陷坑悬空状态使，通过向第一升降油室和第二升降油室内注油也能够延伸支撑弹簧和减震的长度，可以使悬空轮与路面接触，使悬空轮脱离悬空状态；同时，当某一轮或多轮腾空时，为悬空轮的负载将增加，将使对应的第一平衡油室和第二平衡油室受压，受压轮对应的第一平衡油室和第二平衡油室内的液压油将向腾空轮对应的第一平衡油室和第二平衡油室注入，也能够使支撑弹簧和减震的长度延伸，进一步提高支撑弹簧和减震长度延伸效果。
进一步限定，呈组设置的所述支撑弹簧上的第一升降油室和减震上的第二升降油室并联呈组设置，多组所述第一升降油室和第二升降油室并联后连通供油机构出油端。
呈组设置的支撑弹簧和减震上分别设置第一升降油室与第二升降油室并联呈组设置，便于通过供油机构进行同步控制。
进一步限定，所述升降机构包括储油箱和油泵，所述油泵进油端连通储油箱液面一下，所述油泵出油端与多组所述第一升降油室和第二升降油室并联后连通。
进一步限定，多组所述第一升降油室和第二升降油室并联前均设置有电磁分控阀。
通过控制电磁分控阀控制各组第一升降油室和第二升降油室并联后独立管路的开合状态，各组第一升降油室和第二升降油室对应的电磁分控阀为常闭状态，便于分别向各组第一升降油室和第二升降油室的油室内供入液压油。
进一步限定，所述油泵出口管路上设置有电磁主控阀。
通过设置电磁主控阀能够将油泵的出油进行控制，通过电磁主控阀控制油泵的出油量。
进一步限定，各组所述第一升降油室与第二升降油室与电磁分控阀之间连接有回油管路且通过回油管路连通储油箱，所述回油管路上设置有分路泄压阀。
设置回油管路便于将各组所述第一升降油室与第二升降油室内的液压油回流入储油箱内，且回油管路上的分路泄压阀为常闭状态，能够防止油泵供油时油路泄压，且便于各组所述第一升降油室与第二升降油室泄压且通过泄压使支撑弹簧和减震的长度回复。
进一步限定，所述油泵出油端连接有回油管路且通过回油管路连通储油箱，所述回油管路上设置有主路泄压阀。
油泵出油端通过回油管路连接储油箱且在回油管路上设置主路泄压阀，主路泄压阀为常 开状态，油泵将油泵出后将油回油管路回流至储油箱内，当需要向某一组第一升降油室与第二升降油室供油时将关闭主路泄压阀打开对应的电磁分控阀，向对应的第一升降油室与第二升降油室供油。
进一步限定，两个相邻的所述第一平衡油室之间和两个相邻的第二平衡油室之间均设置有平衡锁，所述平衡锁包括壳体和活动滑块，所述活动滑块设于壳体内，所述活动滑块外壁与壳体内壁密闭连接，所述壳体两端分别通过管路连通设于相邻两个平衡单元上油室底部的接口。
进一步限定，所述活动滑块两侧均设有复位弹簧，两个所述复位弹簧两端分别抵靠活动滑块两侧端面和壳体两侧内壁。
活动滑块设于壳体内且活动滑块外壁与壳体内壁密闭连接，活动滑块两侧分别通过两个复位弹簧与壳体两端抵靠，活动滑块两侧通过管路连通两个相邻的第一平衡油室或第二平衡油室的管路接口，两个第一平衡油室或第二平衡油室内的介质分别接入活动滑块两侧与壳体之间，当其中一个第一平衡油室或第二平衡油室内的介质流入壳体时将推动活动滑块移动，活动滑块移动的时候将克服一侧复位弹簧弹力，降低了各个第一平衡油室或第二平衡油室之间力传递的敏感度。
进一步限定，所述壳体两侧均设有调节组件，所述调节组件包括推板、推杆、压板、螺杆和挤压螺母，所述推板设于壳体内壁与复位弹簧端部之间，所述推杆一端穿透壳体侧壁与推板固定连接，所述推杆另一端与压板连接，所述螺杆穿透压板且与壳体外壁固定连接，所述挤压螺母套于螺杆外且设于压板背离壳体一侧。
挤压螺母套于螺杆外，挤压螺母在螺杆上轴向移动的时候将推动压板移动，进而通过推杆将推板向内移动对复位弹簧端部进行挤压，可以对复位弹簧的初始伸缩度进行调节，进而调节活动滑块克服复位弹簧弹力移动的临界值。
本发明相比现有技术，能够通过供油机构向第一升降油室和第二升降油室内供油以延伸支撑弹簧和减震的长度，在车轮腾空后回落时降低与路面的高度差，降低腾空后落地冲击；同时，还能够通过多个车轮相互压力差使对应设置的多个第一平衡油室和多个第二平衡油室，相互挤压，平衡各个车轮之间的负载。
附图说明
本发明可以通过附图给出的非限定性实施例进一步说明；
图1为本发明车体主动升降平衡系统的结构示意图；
图2为平衡锁的结构示意图；
图3为本发明在独立悬挂应用中的安装结构示意图；
图4为本发明在扭力梁悬挂应用中的安装结构示意图；
图5为本发明在后桥应用中的安装结构示意图；
主要元件符号说明如下：
支撑弹簧100、上安装座110、第一柱状活塞111、第一平衡油室112、下安装座120、第一升降油室121、基座122、第二柱状活塞123、减震200、第二平衡油室210、第二升降油室220、电磁分控阀230、电磁主控阀240、分路泄压阀250、主路泄压阀260、单项限压阀270、供油机构300、油泵310、储油箱320、平衡锁400、壳体410、活动滑块420、复位弹簧430、调节组件440、推板441、推杆442、压板443、螺杆444、挤压螺母445、注油孔450。
具体实施方式
为了使本领域的技术人员可以更好地理解本发明，下面结合附图和实施例对本发明技术方案进一步说明。
如图1、图2所示，一种车体主动升降平衡系统，包括多个支撑弹簧100、多个减震200和供油机构300，所述多个支撑弹簧100和多个减震200一一对应呈组设置，所述多个支撑弹簧100上端均固定连接有上安装座110，所述多个支撑弹簧100下端均固定连接有下安装座120，所述上安装座110上端面设有向上延伸的第一柱状活塞111，所述第一柱状活塞111外套有第一平衡油室112，所述第一柱状活塞111外壁与第一平衡油室112内壁密闭连接，所述第一平衡油室112底部设有两个管路接口；所述多个第一平衡油室112串联呈闭合环形油路；所述下安装座120包括第一升降油室121和基座122，所述第一升降油室121向支撑弹簧100内延伸，所述第一升降油室121外壁底部与支撑弹簧100下端固定连接，所述基座122上端面设有向上延伸的第二柱状活塞123，所述第二柱状活塞123插入第一升降油室121内，所述第二柱状活塞123上开有注油孔，所述注油孔轴向贯穿第二柱状活塞123；所述多个支撑弹簧100上的第一升降油室121并联设置；所述减震200活塞杆端部套有第二平衡油室210，所述减震200活塞杆端部外壁与第二平衡油室210内壁密闭连接，所述第二平衡油室210底部设有两个管路接口；所述多个第二平衡油室210串联呈闭合环形油路；所述减震200液压缸端部套有第二升降油室220，所述减震200液压缸端部外壁与第二升降油室220内壁密闭连接，所述第二升降油室220底部设有管路接口；所述供油机构300用于向第一升降油室121和第二升降油室220内供油。呈组设置的所述支撑弹簧100上的第一升降油室121和减震200上的第二升降油室220并联呈组设置，多组所述第一升降油室121和第二升降油 室220并联后连通供油机构300出油端。所述升降机构包括储油箱320和油泵310，所述油泵310进油端连通储油箱320液面一下，所述油泵310出油端与多组所述第一升降油室121和第二升降油室220并联后连通。多组所述第一升降油室121和第二升降油室220并联前均设置有电磁分控阀230。所述油泵310出口管路上设置有电磁主控阀240。各组所述第一升降油室121与第二升降油室220与电磁分控阀230之间连接有回油管路且通过回油管路连通储油箱320，所述回油管路上设置有分路泄压阀250。所述油泵310出油端连接有回油管路且通过回油管路连通储油箱320，所述回油管路上设置有主路泄压阀260。两个相邻的所述第一平衡油室112之间和两个相邻的第二平衡油室210之间均设置有平衡锁400，所述平衡锁400包括壳体410和活动滑块420，所述活动滑块420设于壳体410内，所述活动滑块420外壁与壳体410内壁密闭连接，所述壳体410两端分别通过管路连通设于相邻两个平衡单元上油室底部的接口。所述活动滑块420两侧均设有复位弹簧430，两个所述复位弹簧430两端分别抵靠活动滑块420两侧端面和壳体410两侧内壁。所述壳体410两侧均设有调节组件440，所述调节组件440包括推板441、推杆442、压板443、螺杆444和挤压螺母445，所述推板441设于壳体410内壁与复位弹簧430端部之间，所述推杆442一端穿透壳体410侧壁与推板441固定连接，所述推杆442另一端与压板443连接，所述螺杆444穿透压板443且与壳体410外壁固定连接，所述挤压螺母445套于螺杆444外且设于压板443背离壳体410一侧。
本实施例中，供油机构300用于将液压油等介质供入各个第一升降油室121和第二升降油室220内，且通过介质供入以延伸支撑弹簧100和减震200的长度；当车辆行驶过程中某一轮或多轮腾空时，将通过供油机构300向各个腾空轮对应的第一升降油室121和第二升降油室220供油，使支撑弹簧100和减震200的长度延伸将车轮推离车体，使车轮向路面靠近，降低车轮回落时与路面的高度差，降低腾空后落地冲击；同时，当某一轮或多轮处于陷坑悬空状态使，通过向第一升降油室121和第二升降油室220内注油也能够延伸支撑弹簧100和减震200的长度，可以使悬空轮与路面接触，使悬空轮脱离悬空状态；同时，当某一轮或多轮腾空时，为悬空轮的负载将增加，将使对应的第一平衡油室112和第二平衡油室210受压，受压轮对应的第一平衡油室112和第二平衡油室210内的液压油将向腾空轮对应的第一平衡油室112和第二平衡油室210注入，也能够使支撑弹簧100和减震200的长度延伸，进一步提高支撑弹簧100和减震200长度延伸效果。呈组设置的支撑弹簧100和减震200上分别设置第一升降油室121与第二升降油室220并联呈组设置，便于通过供油机构300进行同步控制。通过控制电磁分控阀230控制各组第一升降油室121和第二升降油室220并联后独立管路的开合状态，各组第一升降油室121和第二升降油室220对应的电磁分控阀230为常闭状态，便于分别向各组第一升降油室121和第二升降油室220的油室内供入液压油。通过设置 电磁主控阀240能够将油泵310的出油进行控制，通过电磁主控阀240控制油泵310的出油量。设置回油管路便于将各组所述第一升降油室121与第二升降油室220内的液压油回流入储油箱320内，且回油管路上的分路泄压阀250为常闭状态，能够防止油泵310供油时油路泄压，且便于各组所述第一升降油室121与第二升降油室220泄压且通过泄压使支撑弹簧100和减震200的长度回复。油泵310出油端通过回油管路连接储油箱320且在回油管路上设置主路泄压阀260，主路泄压阀260为常开状态，油泵310将油泵310出后将油回油管路回流至储油箱320内，当需要向某一组第一升降油室121与第二升降油室220供油时将关闭主路泄压阀260打开对应的电磁分控阀230，向对应的第一升降油室121与第二升降油室220供油。活动滑块420设于壳体410内且活动滑块420外壁与壳体410内壁密闭连接，活动滑块420两侧分别通过两个复位弹簧430与壳体410两端抵靠，活动滑块420两侧通过管路连通两个相邻的第一平衡油室112或第二平衡油室210的管路接口，两个第一平衡油室112或第二平衡油室210内的介质分别接入活动滑块420两侧与壳体410之间，当其中一个第一平衡油室112或第二平衡油室210内的介质流入壳体410时将推动活动滑块420移动，活动滑块420移动的时候将克服一侧复位弹簧430弹力，降低了各个第一平衡油室112或第二平衡油室210之间力传递的敏感度。挤压螺母445套于螺杆444外，挤压螺母445在螺杆444上轴向移动的时候将推动压板443移动，进而通过推杆442将推板441向内移动对复位弹簧430端部进行挤压，可以对复位弹簧430的初始伸缩度进行调节，进而调节活动滑块420克服复位弹簧430弹力移动的临界值。所述分路泄压阀250并联有单项限压阀270。单项限压阀270能够辅助分路泄压阀250回油，且当分路泄压阀250出现故障后，油室120内的液压有在车体的挤压下能够正常泄压；为方便对平衡锁400连接的管路加注液压油，在壳体410两端均设置有常态封闭的注油孔450。
图3、图4、图5分别为本设计方案在独立悬挂系统、扭力梁悬挂系统和后桥中的安装结构示意图。
本发明相比现有技术，能够通过供油机构300向第一升降油室121和第二升降油室220内供油以延伸支撑弹簧100和减震200的长度，在车轮腾空后回落时降低与路面的高度差，降低腾空后落地冲击；同时，还能够通过多个车轮相互压力差使对应设置的多个第一平衡油室112和多个第二平衡油室210，相互挤压，平衡各个车轮之间的负载。
以上对本发明提供的车体主动升降平衡系统进行了详细介绍。具体实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种车体主动升降平衡系统，包括多个支撑弹簧、多个减震和供油机构，所述多个支撑弹簧和多个减震一一对应呈组设置，其特征在于：所述多个支撑弹簧上端均固定连接有上安装座，所述多个支撑弹簧下端均固定连接有下安装座，所述上安装座上端面设有向上延伸的第一柱状活塞，所述第一柱状活塞外套有第一平衡油室，所述第一柱状活塞外壁与第一平衡油室内壁密闭连接，所述第一平衡油室底部设有两个管路接口；
    所述多个第一平衡油室串联呈闭合环形油路；
    所述下安装座包括第一升降油室和基座，所述第一升降油室向支撑弹簧内延伸，所述第一升降油室外壁底部与支撑弹簧下端固定连接，所述基座上端面设有向上延伸的第二柱状活塞，所述第二柱状活塞插入第一升降油室内，所述第二柱状活塞上开有注油孔，所述注油孔轴向贯穿第二柱状活塞；
    所述多个支撑弹簧上的第一升降油室并联设置；
    所述减震的活塞杆端部套有第二平衡油室，所述减震活塞杆端部外壁与第二平衡油室内壁密闭连接，所述第二平衡油室底部设有两个管路接口；
    所述多个第二平衡油室串联呈闭合环形油路；
    所述减震的液压缸端部套有第二升降油室，所述减震液压缸端部外壁与第二升降油室内壁密闭连接，所述第二升降油室底部设有管路接口；
    所述供油机构用于向第一升降油室和第二升降油室内供油。
  2. 根据权利要求1所述的车体主动升降平衡系统，其特征在于：呈组设置的所述支撑弹簧上的第一升降油室和减震上的第二升降油室并联呈组设置，多组所述第一升降油室和第二升降油室并联后连通供油机构出油端。
  3. 根据权利要求2所述的车体主动升降平衡系统，其特征在于：所述升降机构包括储油箱和油泵，所述油泵进油端连通储油箱液面一下，所述油泵出油端与多组所述第一升降油室和第二升降油室并联后连通。
  4. 根据权利要求3所述的车体主动升降平衡系统，其特征在于：多组所述第一升降油室和第二升降油室并联前均设置有电磁分控阀。
  5. 根据权利要求4所述的车体主动升降平衡系统，其特征在于：所述油泵出口管路上设置有电磁主控阀。
  6. 根据权利要求5所述的车体主动平衡系统，其特征在于：各组所述第一升降油室与第二升降油室与电磁分控阀之间连接有回油管路且通过回油管路连通储油箱，所述回油管路上设置有分路泄压阀。
  7. 根据权利要求6所述的车体主动平衡系统，其特征在于：所述油泵出油端连接有回油管路且通过回油管路连通储油箱，所述回油管路上设置有主路泄压阀。
  8. 根据权利要求1至7任一项所述的车体主动平衡系统，其特征在于：两个相邻的所述第一平衡油室之间和两个相邻的第二平衡油室之间均设置有平衡锁，所述平衡锁包括壳体和活动滑块，所述活动滑块设于壳体内，所述活动滑块外壁与壳体内壁密闭连接，所述壳体安装在相邻两个平衡单元之间的管路上。
  9. 根据权利要求8所述的车体自行平衡系统，其特征在于：所述活动滑块两侧均设有复位弹簧，两个所述复位弹簧两端分别抵靠活动滑块两侧端面和壳体两侧内壁。
  10. 根据权利要求9所述的车体自行平衡系统，其特征在于：所述壳体两侧均设有调节组件，所述调节组件包括推板、推杆、压板、螺杆和挤压螺母，所述推板设于壳体内壁与复位弹簧端部之间，所述推杆一端穿透壳体侧壁与推板固定连接，所述推杆另一端与压板连接，所述螺杆穿透压板且与壳体外壁固定连接，所述挤压螺母套于螺杆外且设于压板背离壳体一侧。
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CN117360150A (zh) * 2022-06-30 2024-01-09 比亚迪股份有限公司 一种横向稳定杆的控制方法及相关装置
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