WO2016082791A1 - Vehicle and transversely-stabilizing device thereof - Google Patents

Vehicle and transversely-stabilizing device thereof Download PDF

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Publication number
WO2016082791A1
WO2016082791A1 PCT/CN2015/095770 CN2015095770W WO2016082791A1 WO 2016082791 A1 WO2016082791 A1 WO 2016082791A1 CN 2015095770 W CN2015095770 W CN 2015095770W WO 2016082791 A1 WO2016082791 A1 WO 2016082791A1
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WIPO (PCT)
Prior art keywords
hydraulic cylinder
lateral stabilizer
rod
vehicle
oil passage
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PCT/CN2015/095770
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French (fr)
Chinese (zh)
Inventor
郭耀华
汤望
秦涛
海辰光
刘万备
严斌
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郑州宇通客车股份有限公司
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Publication of WO2016082791A1 publication Critical patent/WO2016082791A1/en

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    • 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
    • B60G21/04—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 mechanically
    • B60G21/05—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 mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • 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
    • B60G21/04—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 mechanically
    • B60G21/05—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 mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/055—Stabiliser bars
    • 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
    • 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
    • B60G21/073—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 between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected

Definitions

  • the invention relates to a vehicle and its lateral stabilizer.
  • the existing vehicle includes a vehicle body, an axle, and front and rear lateral stabilizer bars.
  • the two ends of the lateral stabilizer bar are respectively hingedly connected with the left and right sides of the vehicle body.
  • the lateral stabilizer can provide a small anti-roll stiffness to Improve the ride comfort of the vehicle, and improve the vehicle's grip performance when driving on slippery roads, reduce the tire side slip, improve the vehicle's steering stability and passability, when the vehicle enters a corner or makes an emergency turn
  • the vehicle body will generate a large roll angle.
  • the lateral stabilizer can provide a large anti-roll stiffness for the vehicle, thereby effectively suppressing the vehicle body roll, reducing the occurrence of the vehicle rollover accident, and improving the vehicle.
  • Driving safety when the vehicle is running, when the vehicle body produces a small roll angle (such as driving at a high speed on a sandy road with small protrusions)
  • the torsional stiffness of the conventional stabilizer bar has little to do with the roll angle of the vehicle body.
  • the lateral stabilizer bar is directly connected to the vehicle body, even if the vehicle body roll angle is small, the lateral stabilizer bar is provided for the vehicle.
  • the large anti-rolling moment makes the car generate a large roll angle vibration, which affects the ride comfort.
  • the technical solution of the lateral stabilizer in the present invention is:
  • the lateral stabilizer of the vehicle comprises front and rear lateral stabilizer bars, and the first hydraulic cylinder and the second hydraulic cylinder are respectively disposed on the left and right sides of the front lateral stabilizer bar, and the third hydraulic cylinder is respectively disposed on the left and right sides of the rear lateral stabilizer bar
  • the fourth hydraulic cylinder, the piston rods of the first hydraulic cylinder and the second hydraulic cylinder are respectively connected with the left and right ends of the front lateral stabilizer rod, and the piston rods of the third hydraulic cylinder and the fourth hydraulic cylinder are respectively respectively connected to the left and right lateral stabilizer rods
  • the end drive connection the rod cavity of the first hydraulic cylinder is connected to the rodless cavity of the fourth hydraulic cylinder through the first oil passage, and the rodless cavity of the first hydraulic cylinder passes through the second oil passage and the fourth hydraulic cylinder
  • the rod chamber is connected, the rod chamber of the second hydraulic cylinder is connected to the rodless chamber of the third hydraulic cylinder through the third oil passage, and the rodless chamber of the second hydraulic cylinder passes through the
  • Each hydraulic cylinder is respectively connected to a corresponding lateral stabilizer bar through a link mechanism.
  • the link mechanism includes a power output arm extending in a lateral direction of the rotation axis and a power fixed on the power output arm
  • the input arm, the power output arm and the power input arm form a V-shaped structure, and the left and right ends of each lateral stabilizer bar are respectively connected with the corresponding power output arm through corresponding transmission links, and the piston rods of the respective hydraulic cylinders respectively correspond to the power
  • the input arm is hingedly connected.
  • the vehicle including the vehicle body and the axle, further includes a lateral stabilizer disposed between the vehicle body and the axle, the lateral stabilizer includes front and rear stabilizer bars, and the first hydraulic pressure is respectively disposed on the left and right sides of the front stabilizer bar a cylinder and a second hydraulic cylinder, and a third hydraulic cylinder and a fourth hydraulic cylinder are respectively disposed on the left and right sides of the rear lateral stabilizer, and the piston rods of the first hydraulic cylinder and the second hydraulic cylinder are respectively driven to the left and right ends of the front lateral stabilizer Connecting, the piston rods of the third hydraulic cylinder and the fourth hydraulic cylinder are respectively connected to the left and right ends of the rear lateral stabilizer rod, and the rod chamber of the first hydraulic cylinder passes through the first oil passage and the rodless cavity of the fourth hydraulic cylinder Connected, the rodless cavity of the first hydraulic cylinder is connected to the rod cavity of the fourth hydraulic cylinder through the second oil passage, and the rod cavity of the second hydraulic cylinder is connected to the rodless cavity of the
  • Each hydraulic cylinder is respectively connected to a corresponding lateral stabilizer bar through a link mechanism.
  • the link mechanism comprises a power output arm extending in a lateral direction of the rotation axis and a power input arm fixed on the power output arm.
  • the power output arm and the power input arm form a V-shaped structure, and the left and right sides of each lateral stabilizer bar The ends are respectively connected to the corresponding power output arm through corresponding transmission links, and the piston rods of each hydraulic cylinder are respectively hingedly connected with the corresponding power input arm.
  • the invention has the beneficial effects that when the vehicle runs on an uneven road surface, the vehicle will generate a small roll motion, and the compression or extension movement between the vehicle body and the axle will be transmitted to the piston rod of the corresponding hydraulic cylinder, corresponding to the hydraulic pressure.
  • the thrust of the piston rod of the cylinder can provide the vehicle with anti-rolling moment. Under this condition, the piston rod of the corresponding hydraulic cylinder generates a small movement.
  • the oil generated by the movement of the piston rod of the hydraulic cylinder The volume change is small, the gas volume in the accumulator does not change significantly, and the pressure in the oil path is close to the initial value, so that the lateral stabilizer provides a small anti-roll moment, thereby effectively reducing the roll angle vibration of the vehicle, and effectively Improve ride comfort and ride comfort.
  • FIG. 1 is a schematic view showing the structure of an embodiment of a vehicle according to the present invention, and is also a state of use of an embodiment of the lateral stabilizer of the present invention.
  • the vehicle is implemented as shown in FIG. 1 : a vehicle body, an axle, and a lateral stabilizer disposed between the vehicle body and the axle.
  • the axle includes a front axle 3 and a rear axle 15
  • the lateral stabilizer includes a front stabilizer.
  • the third hydraulic cylinder 9 and the fourth hydraulic cylinder 8 are respectively disposed on the left and right sides of the rear horizontal stabilizer bar 16 of the cylinder 1 and the second hydraulic cylinder 5, and the piston rods of the first hydraulic cylinder 1 and the second hydraulic cylinder 5 respectively pass corresponding
  • the connecting rod mechanism is connected to the left and right ends of the front lateral stabilizer bar 4, and the piston rods of the third hydraulic cylinder 9 and the fourth hydraulic cylinder 8 are respectively connected to the left and right ends of the rear lateral stabilizer bar 16 through the corresponding link mechanism,
  • the rod chamber of a hydraulic cylinder 1 is connected to the rodless chamber of the fourth hydraulic cylinder 8 through the first oil passage 11, and the rodless chamber of the first hydraulic cylinder 1 passes through the second oil passage 12 and the fourth hydraulic cylinder 8
  • the rod chamber is connected, and the rod chamber of
  • the rods are connected to the rod chamber, and the first, second, third and fourth oil passages are respectively provided with a first accumulator 7, a second accumulator 2, a third accumulator 10 and a fourth accumulator 6 .
  • the structure of each link mechanism is the same.
  • the link mechanism includes a power output arm extending in the lateral direction of the rotation axis and a power input arm fixed on the power output arm.
  • the power output arm and the power input arm form a V shape.
  • the V-shaped rocker arm 18 of the structure is connected to the corresponding power output arm through the transmission link 17 corresponding to the left and right ends of the lateral stabilizer bar, and the two ends of the transmission link are respectively hingedly connected with the lateral stabilizer bar and the corresponding power output arm.
  • the piston rods of the hydraulic cylinders are respectively hingedly connected with the corresponding power input arm, and each of the hydraulic cylinders is horizontally arranged in the front-rear direction, and the transmission links are vertically arranged.
  • the car body When the vehicle is running on uneven road surface, the car body will produce less roll motion, that is, the roll angle of the car body is smaller, and the compression or extension movement between the car body and the axle will be driven laterally through the transmission link.
  • the rod generates a twist, which will be reversed by the transmission link to the V-shaped rocker arm, the V-shaped rocker arm rotates about its own hinge axis, and the V-shaped rocker arm converts the motion into a linear motion corresponding to the hydraulic cylinder, and the hydraulic cylinder
  • the thrust of the piston rod can provide the vehicle with anti-roll moment. Under this condition, the piston rod of each hydraulic cylinder produces a small movement.
  • the lateral stabilizer provides a small anti-rolling moment, thereby effectively reducing the roll angle vibration of the vehicle and improving ride comfort.
  • the V-shaped rocker arms on the right side respectively compress the piston rods of the second and fourth hydraulic cylinders.
  • the rodless cavity of the fourth hydraulic cylinder is a high pressure chamber, and the rod cavity is a low pressure chamber.
  • the working principle of the left side of the lateral stabilizer is similar to the right side, and the rod chamber of the first and third hydraulic cylinders is high pressure.
  • the cavity and the rodless cavity are low pressure chambers, because the rodless cavity and the rod cavity of the fourth hydraulic cylinder are respectively crosslinked with the rod cavity and the rodless cavity of the first hydraulic cylinder respectively through the corresponding oil passage, and the second hydraulic cylinder is not
  • the rod cavity and the rod cavity are respectively connected to the rod cavity and the rodless cavity of the third hydraulic cylinder through the corresponding oil passage, and the second and fourth hydraulic cylinders compress the gas in the first and fourth accumulators to make the first and the first
  • the oil pressure in the four oil passages rises rapidly, and the movement of each hydraulic cylinder to the right side is subject to a large hydraulic pressure. Force, thereby generating a large anti-roll moment, to prevent the roll of the vehicle body.
  • the V-shaped rocker arm can change the direction of force transmission from
  • the hydraulic cylinder can be conveniently arranged, and the hydraulic cylinder is horizontally arranged on the side of the vehicle body, so that the layout of the hydraulic cylinder can be made more compact; the roll stiffness of the lateral stabilizer can be adjusted by the gas pressure in the accumulator to achieve rigidity.
  • the adjustment is convenient for debugging, disassembly and maintenance; at the same time, the lateral stabilizer can automatically adjust the stiffness of the stabilizer bar according to the operating conditions of the vehicle, effectively reduce the roll of the vehicle body, and improve the stability and comfort of the operation.
  • the cross-linking lateral stabilizer can also improve the anti-pitch stiffness of the vehicle during the large pitching motion, thereby improving the anti-braking head and anti-driving performance of the vehicle.
  • the link mechanism may not be provided.
  • the piston rod of the hydraulic cylinder may be directly connected to the stabilizer bar, and the cylinder of the hydraulic cylinder is hinged to the vehicle body.
  • lateral stabilizer The embodiment of the lateral stabilizer is shown in Fig. 1.
  • the specific structure of the lateral stabilizer is the same as that of the lateral stabilizer described in the above vehicle embodiments, and will not be described in detail herein.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A vehicle and a transversely-stabilizing device thereof. The transversely-stabilizing device comprises a front transversely-stabilizing rod (4) and a rear transversely-stabilizing rod (16), and further comprises a first hydraulic cylinder (1), a second hydraulic cylinder (5), a third hydraulic cylinder (9) and a fourth hydraulic cylinder (8). The first hydraulic cylinder (1) and the second hydraulic cylinder (5) are in transmission connection to the left end and the right end of the front transversely-stabilizing rod (4). The third hydraulic cylinder (9) and the fourth hydraulic cylinder (8) are separately in transmission connection to the left end and the right end of the rear transversely-stabilizing rod (16). A rod port of the first hydraulic cylinder (1) is connected to a head port of the fourth hydraulic cylinder (8) through a first channel (11). A head port of the first hydraulic cylinder (1) is connected to a rod port of the fourth hydraulic cylinder (8) through a second oil channel (12). A rod port of the second hydraulic cylinder (5) is connected to a head port of the third hydraulic cylinder (9) through a third oil channel (13). A head port of the second hydraulic cylinder (5) is connected to a rod port of the third hydraulic cylinder (9) through a fourth oil channel (14). An energy accumulator is disposed on each oil channel. The transversely-stabilizing device and the vehicle that uses the transversely-stabilizing device can reduce vehicle roll angle vibration when the vehicle has a relatively small roll angle.

Description

车辆及其横向稳定装置Vehicle and its lateral stabilizer 技术领域Technical field
本发明涉及一种车辆及其横向稳定装置。The invention relates to a vehicle and its lateral stabilizer.
背景技术Background technique
现有的车辆包括车体、车桥及前、后横向稳定杆，横向稳定杆的两端分别与车体的左右两侧铰接相连，当车辆在不平整道路上行走或者需要拐弯时，车体会产生侧倾，车体的侧倾使得横向稳定杆产生扭转，从而增大车桥的抗侧倾刚度，减小车体侧倾。然而在车辆行驶过程中，当车体产生较小的侧倾角(如高速行驶于有较小突起的沙石路面)，此时，人们期望横向稳定装置能够提供较小的抗侧倾刚度，以提高车辆的乘坐舒适性，并且车辆在湿滑路面行驶时，可提高车辆的抓地性能，减小轮胎侧滑，提高车辆的操纵稳定性和通过性，当车辆进入弯道行驶或紧急转弯时，车体将产生较大的侧倾角，此时期望横向稳定装置能为车辆提供较大的抗侧倾刚度，从而可有效抑制车体侧倾，减小车辆侧翻事故的发生，提高车辆的行驶安全性。然而传统横向稳定杆的扭转刚度与车体侧倾角关系不大，当车辆通过不平整路面时，因为横向稳定杆直接与车体相连，即使车体侧倾角较小，横向稳定杆也为车辆提供较大的抗侧倾力矩，使得汽车产生较大的侧倾角振动，影响乘坐舒适性。The existing vehicle includes a vehicle body, an axle, and front and rear lateral stabilizer bars. The two ends of the lateral stabilizer bar are respectively hingedly connected with the left and right sides of the vehicle body. When the vehicle walks on an uneven road or needs to turn, the vehicle body will be When the roll is generated, the roll of the vehicle body causes the lateral stabilizer bar to twist, thereby increasing the anti-roll stiffness of the axle and reducing the roll of the vehicle body. However, when the vehicle is running, when the vehicle body produces a small roll angle (such as driving at a high speed on a sandy road with small protrusions), it is expected that the lateral stabilizer can provide a small anti-roll stiffness to Improve the ride comfort of the vehicle, and improve the vehicle's grip performance when driving on slippery roads, reduce the tire side slip, improve the vehicle's steering stability and passability, when the vehicle enters a corner or makes an emergency turn The vehicle body will generate a large roll angle. At this time, it is expected that the lateral stabilizer can provide a large anti-roll stiffness for the vehicle, thereby effectively suppressing the vehicle body roll, reducing the occurrence of the vehicle rollover accident, and improving the vehicle. Driving safety. However, the torsional stiffness of the conventional stabilizer bar has little to do with the roll angle of the vehicle body. When the vehicle passes through the uneven road surface, because the lateral stabilizer bar is directly connected to the vehicle body, even if the vehicle body roll angle is small, the lateral stabilizer bar is provided for the vehicle. The large anti-rolling moment makes the car generate a large roll angle vibration, which affects the ride comfort.
发明内容Summary of the invention
本发明的目的在于提供一种在车体产生较小侧倾角时可以减小车辆侧倾角振动的横向稳定装置；本发明的目的还在于提供一种使用该横向稳定装置的车辆。It is an object of the present invention to provide a lateral stabilizer that can reduce vehicle roll angle vibration when the vehicle body produces a small roll angle; it is also an object of the present invention to provide a vehicle using the lateral stabilizer.
为了解决上述问题，本发明中横向稳定装置的技术方案为：In order to solve the above problems, the technical solution of the lateral stabilizer in the present invention is:
车辆的横向稳定装置，包括前、后横向稳定杆，前横向稳定杆的左右两侧分别设置有第一液压缸和第二液压缸，后横向稳定杆的左右两侧分别设置有第三液压缸和第四液压缸，第一液压缸、第二液压缸的活塞杆分别与前横向稳定杆的左右端传动连接，第三液压缸、第四液压缸的活塞杆分别与后横向稳定杆的左右端传动连接，第一液压缸的有杆腔通过第一油路与所述第四液压缸的无杆腔相连，第一液压缸的无杆腔通过第二油路与第四液压缸的有杆腔相连，第二液压缸的有杆腔通过第三油路与第三液压缸的无杆腔相连，第二液压缸的无杆腔通过第四油路与第三液压缸的有杆腔相连，第一、第二、第三和第四油路上分别设置有第一、第二、第三和第四蓄能器。The lateral stabilizer of the vehicle comprises front and rear lateral stabilizer bars, and the first hydraulic cylinder and the second hydraulic cylinder are respectively disposed on the left and right sides of the front lateral stabilizer bar, and the third hydraulic cylinder is respectively disposed on the left and right sides of the rear lateral stabilizer bar And the fourth hydraulic cylinder, the piston rods of the first hydraulic cylinder and the second hydraulic cylinder are respectively connected with the left and right ends of the front lateral stabilizer rod, and the piston rods of the third hydraulic cylinder and the fourth hydraulic cylinder are respectively respectively connected to the left and right lateral stabilizer rods The end drive connection, the rod cavity of the first hydraulic cylinder is connected to the rodless cavity of the fourth hydraulic cylinder through the first oil passage, and the rodless cavity of the first hydraulic cylinder passes through the second oil passage and the fourth hydraulic cylinder The rod chamber is connected, the rod chamber of the second hydraulic cylinder is connected to the rodless chamber of the third hydraulic cylinder through the third oil passage, and the rodless chamber of the second hydraulic cylinder passes through the rod chamber of the fourth oil passage and the third hydraulic cylinder Connected, the first, second, third and fourth oil passages are respectively provided with first, second, third and fourth accumulators.
各液压缸分别通过连杆机构与对应横向稳定杆传动连接。Each hydraulic cylinder is respectively connected to a corresponding lateral stabilizer bar through a link mechanism.
连杆机构包括转动轴线沿横向延伸的动力输出拐臂和固设于动力输出拐臂上的动力 输入拐臂，动力输出拐臂、动力输入拐臂构成V形结构，各横向稳定杆的左右两端分别通过对应传动连杆与对应动力输出拐臂相连，各液压缸的活塞杆分别与对应动力输入拐臂铰接相连。The link mechanism includes a power output arm extending in a lateral direction of the rotation axis and a power fixed on the power output arm The input arm, the power output arm and the power input arm form a V-shaped structure, and the left and right ends of each lateral stabilizer bar are respectively connected with the corresponding power output arm through corresponding transmission links, and the piston rods of the respective hydraulic cylinders respectively correspond to the power The input arm is hingedly connected.
本发明中车辆的技术方案为：The technical solution of the vehicle in the invention is:
车辆，包括车体和车桥，还包括设置于车体与车桥之间的横向稳定装置，横向稳定装置包括前、后横向稳定杆，前横向稳定杆的左右两侧分别设置有第一液压缸和第二液压缸，后横向稳定杆的左右两侧分别设置有第三液压缸和第四液压缸，第一液压缸、第二液压缸的活塞杆分别与前横向稳定杆的左右端传动连接，第三液压缸、第四液压缸的活塞杆分别与后横向稳定杆的左右端传动连接，第一液压缸的有杆腔通过第一油路与所述第四液压缸的无杆腔相连，第一液压缸的无杆腔通过第二油路与第四液压缸的有杆腔相连，第二液压缸的有杆腔通过第三油路与第三液压缸的无杆腔相连，第二液压缸的无杆腔通过第四油路与第三液压缸的有杆腔相连，第一、第二、第三和第四油路上分别设置有第一、第二、第三和第四蓄能器。The vehicle, including the vehicle body and the axle, further includes a lateral stabilizer disposed between the vehicle body and the axle, the lateral stabilizer includes front and rear stabilizer bars, and the first hydraulic pressure is respectively disposed on the left and right sides of the front stabilizer bar a cylinder and a second hydraulic cylinder, and a third hydraulic cylinder and a fourth hydraulic cylinder are respectively disposed on the left and right sides of the rear lateral stabilizer, and the piston rods of the first hydraulic cylinder and the second hydraulic cylinder are respectively driven to the left and right ends of the front lateral stabilizer Connecting, the piston rods of the third hydraulic cylinder and the fourth hydraulic cylinder are respectively connected to the left and right ends of the rear lateral stabilizer rod, and the rod chamber of the first hydraulic cylinder passes through the first oil passage and the rodless cavity of the fourth hydraulic cylinder Connected, the rodless cavity of the first hydraulic cylinder is connected to the rod cavity of the fourth hydraulic cylinder through the second oil passage, and the rod cavity of the second hydraulic cylinder is connected to the rodless cavity of the third hydraulic cylinder through the third oil passage. The rodless chamber of the second hydraulic cylinder is connected to the rod chamber of the third hydraulic cylinder through the fourth oil passage, and the first, second, third and fourth oil passages are respectively provided with the first, second, third and third Four accumulators.
各液压缸分别通过连杆机构与对应横向稳定杆传动连接。Each hydraulic cylinder is respectively connected to a corresponding lateral stabilizer bar through a link mechanism.
连杆机构包括转动轴线沿横向延伸的动力输出拐臂和固设于动力输出拐臂上的动力输入拐臂，动力输出拐臂、动力输入拐臂构成V形结构，各横向稳定杆的左右两端分别通过对应传动连杆与对应动力输出拐臂相连，各液压缸的活塞杆分别与对应动力输入拐臂铰接相连。The link mechanism comprises a power output arm extending in a lateral direction of the rotation axis and a power input arm fixed on the power output arm. The power output arm and the power input arm form a V-shaped structure, and the left and right sides of each lateral stabilizer bar The ends are respectively connected to the corresponding power output arm through corresponding transmission links, and the piston rods of each hydraulic cylinder are respectively hingedly connected with the corresponding power input arm.
本发明的有益效果为：当车辆行驶于不平整路面时，车辆将产生较小的侧倾运动，车体与车桥之间的压缩或者伸张运动将传递给对应液压缸的活塞杆，对应液压缸的活塞杆所受到的推力可为车辆提供抗侧倾力矩，该工况下，对应液压缸的活塞杆产生较小的运动，此时，由于液压缸的活塞杆的运动产生的油液体积变化量小，对应蓄能器内气体体积未显著变化，油路内的压力接近初始值，使得该横向稳定装置提供较小的抗侧倾力矩，从而有效降低车辆的侧倾角振动，有效提高行驶平顺性和乘坐舒适性。The invention has the beneficial effects that when the vehicle runs on an uneven road surface, the vehicle will generate a small roll motion, and the compression or extension movement between the vehicle body and the axle will be transmitted to the piston rod of the corresponding hydraulic cylinder, corresponding to the hydraulic pressure. The thrust of the piston rod of the cylinder can provide the vehicle with anti-rolling moment. Under this condition, the piston rod of the corresponding hydraulic cylinder generates a small movement. At this time, the oil generated by the movement of the piston rod of the hydraulic cylinder The volume change is small, the gas volume in the accumulator does not change significantly, and the pressure in the oil path is close to the initial value, so that the lateral stabilizer provides a small anti-roll moment, thereby effectively reducing the roll angle vibration of the vehicle, and effectively Improve ride comfort and ride comfort.
附图说明DRAWINGS
图1是本发明中车辆的一个实施例的结构示意图，同时也是本发明中横向稳定装置的一个实施例的使用状态图。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of an embodiment of a vehicle according to the present invention, and is also a state of use of an embodiment of the lateral stabilizer of the present invention.
具体实施方式detailed description
车辆的实施例如图1所示：包括车体、车桥及设置于车体与车桥之间的横向稳定装置，车桥包括前车桥3和后车桥15，横向稳定装置包括设置于前车桥3上的前横向稳定杆4和设置于后车桥15上的后横向稳定杆16，前横向稳定杆4的左右两侧分别设置有第一液压 缸1和第二液压缸5，后横向稳定杆16的左右两侧分别设置有第三液压缸9和第四液压缸8，第一液压缸1、第二液压缸5的活塞杆分别通过对应连杆机构与前横向稳定杆4的左右两端传动连接，第三液压缸9、第四液压缸8的活塞杆分别通过对应连杆机构与后横向稳定杆16的左右两端传动连接，第一液压缸1的有杆腔通过通过第一油路11与第四液压缸8的无杆腔相连，第一液压缸1的无杆腔通过第二油路12与第四液压缸8的有杆腔相连，第二液压缸5的有杆腔通过第三油路13与第三液压缸9的无杆腔相连，第二液压缸5的无杆腔通过第四油路14与第三液压缸的有杆腔相连，第一、第二、第三和第四油路上分别设置有第一蓄能器7、第二蓄能器2、第三蓄能器10和第四蓄能器6。各连杆机构的结构均相同，连杆机构包括转动轴线沿横向延伸的动力输出拐臂和固设于动力输出拐臂上的动力输入拐臂，动力输出拐臂、动力输入拐臂构成V形结构的V型摇臂18，对应横向稳定杆的左右两端分别通过传动连杆17与对应动力输出拐臂相连，传动连杆的两端分别与横向稳定杆和对应动力输出拐臂铰接相连，各液压缸的活塞杆分别与对应动力输入拐臂铰接相连，各液压缸均沿前后方向水平布置，传动连杆竖向布置。The vehicle is implemented as shown in FIG. 1 : a vehicle body, an axle, and a lateral stabilizer disposed between the vehicle body and the axle. The axle includes a front axle 3 and a rear axle 15 , and the lateral stabilizer includes a front stabilizer. a front stabilizer bar 4 on the axle 3 and a rear stabilizer bar 16 disposed on the rear axle 15, and a first hydraulic pressure is respectively disposed on the left and right sides of the front stabilizer bar 4 The third hydraulic cylinder 9 and the fourth hydraulic cylinder 8 are respectively disposed on the left and right sides of the rear horizontal stabilizer bar 16 of the cylinder 1 and the second hydraulic cylinder 5, and the piston rods of the first hydraulic cylinder 1 and the second hydraulic cylinder 5 respectively pass corresponding The connecting rod mechanism is connected to the left and right ends of the front lateral stabilizer bar 4, and the piston rods of the third hydraulic cylinder 9 and the fourth hydraulic cylinder 8 are respectively connected to the left and right ends of the rear lateral stabilizer bar 16 through the corresponding link mechanism, The rod chamber of a hydraulic cylinder 1 is connected to the rodless chamber of the fourth hydraulic cylinder 8 through the first oil passage 11, and the rodless chamber of the first hydraulic cylinder 1 passes through the second oil passage 12 and the fourth hydraulic cylinder 8 The rod chamber is connected, and the rod chamber of the second hydraulic cylinder 5 is connected to the rodless chamber of the third hydraulic cylinder 9 through the third oil passage 13, and the rodless chamber of the second hydraulic cylinder 5 passes through the fourth oil passage 14 and the third hydraulic pressure. The rods are connected to the rod chamber, and the first, second, third and fourth oil passages are respectively provided with a first accumulator 7, a second accumulator 2, a third accumulator 10 and a fourth accumulator 6 . The structure of each link mechanism is the same. The link mechanism includes a power output arm extending in the lateral direction of the rotation axis and a power input arm fixed on the power output arm. The power output arm and the power input arm form a V shape. The V-shaped rocker arm 18 of the structure is connected to the corresponding power output arm through the transmission link 17 corresponding to the left and right ends of the lateral stabilizer bar, and the two ends of the transmission link are respectively hingedly connected with the lateral stabilizer bar and the corresponding power output arm. The piston rods of the hydraulic cylinders are respectively hingedly connected with the corresponding power input arm, and each of the hydraulic cylinders is horizontally arranged in the front-rear direction, and the transmission links are vertically arranged.
当车辆行驶于不平整路面时，车体将产生较小的侧倾运动，即车体的侧倾角度较小，车体与车桥之间的压缩或者伸张运动将通过传动连杆驱动横向稳定杆产生扭转，这种扭转运动将通过传动连杆反作用于V型摇臂，V型摇臂绕自身的铰接轴线转动，V型摇臂将该运动转化为对应液压缸的线性运动，而液压缸的活塞杆所受到的推力可以为车辆提供抗侧倾力矩。该工况下，各液压缸的活塞杆产生较小的运动，此时由于液压缸运动而产生的油液体积变化量较少，对应蓄能器内体积未显著变化，对应油路中的压力接近初始值，该横向稳定装置提供较小的抗侧倾力矩，从而有效降低车辆的侧倾角振动，提高行驶平顺性。当车辆向左转弯时，车体向右侧倾斜，车桥右侧受压，左侧受拉，横向稳定杆的扭转力矩通过传动连杆反作用于V型摇臂，使得V型摇臂绕自身轴线转动，车体会产生较大的侧倾角，车体与车桥间的压缩量加大，右侧的各V型摇臂分别压缩第二、第四液压缸的活塞杆动作，此时第二、第四液压缸的无杆腔为高压腔，有杆腔为低压腔，该横向稳定装置的左侧的工作原理与右侧相似，此时第一、第三液压缸的有杆腔为高压腔，无杆腔为低压腔，由于第四液压缸的无杆腔和有杆腔分别与第一液压缸的有杆腔和无杆腔分别通过对应油路交联，第二液压缸的无杆腔和有杆腔分别通过对应油路与第三液压缸的有杆腔和无杆腔相连，第二、第四液压缸压缩第一、第四蓄能器中的气体使得第一、第四油路中的油压迅速升高，此时各液压缸向右侧的运动均受到较大的液压阻力，进而产生较大的抗侧倾力矩，阻止车体的侧倾。当车辆向右转弯时，工作过程与上述相似，在此不再赘述。V型摇臂可以改变力的传递方向，从 而可以方便的设置液压缸，将液压缸水平布置于车体的侧面上，可以使液压缸的布局更加紧凑；横向稳定装置的侧倾刚度可以通过蓄能器内气体压力的调节来实现刚度可调，方便调试、拆卸维护方便；同时本横向稳定装置可根据车辆的运行工况自动调整横向稳定杆的刚度，有效减小车体侧倾，提高操纵的稳定性和舒适性。该交联式横向稳定装置除具备上述优势外，还可以提高车辆较大俯仰运动时的抗俯仰刚度，从而提高车辆的抗制动点头及抗驱动后蹲性能。When the vehicle is running on uneven road surface, the car body will produce less roll motion, that is, the roll angle of the car body is smaller, and the compression or extension movement between the car body and the axle will be driven laterally through the transmission link. The rod generates a twist, which will be reversed by the transmission link to the V-shaped rocker arm, the V-shaped rocker arm rotates about its own hinge axis, and the V-shaped rocker arm converts the motion into a linear motion corresponding to the hydraulic cylinder, and the hydraulic cylinder The thrust of the piston rod can provide the vehicle with anti-roll moment. Under this condition, the piston rod of each hydraulic cylinder produces a small movement. At this time, the volume change of the oil due to the movement of the hydraulic cylinder is small, and the volume in the corresponding accumulator does not change significantly, corresponding to the pressure in the oil passage. Close to the initial value, the lateral stabilizer provides a small anti-rolling moment, thereby effectively reducing the roll angle vibration of the vehicle and improving ride comfort. When the vehicle turns to the left, the car body is tilted to the right, the right side of the axle is pressed, and the left side is pulled. The torsional moment of the stabilizer bar is reversed by the transmission link to the V-shaped rocker arm, so that the V-shaped rocker arm surrounds itself. When the axis rotates, the car body will have a large roll angle, and the compression between the car body and the axle will increase. The V-shaped rocker arms on the right side respectively compress the piston rods of the second and fourth hydraulic cylinders. The rodless cavity of the fourth hydraulic cylinder is a high pressure chamber, and the rod cavity is a low pressure chamber. The working principle of the left side of the lateral stabilizer is similar to the right side, and the rod chamber of the first and third hydraulic cylinders is high pressure. The cavity and the rodless cavity are low pressure chambers, because the rodless cavity and the rod cavity of the fourth hydraulic cylinder are respectively crosslinked with the rod cavity and the rodless cavity of the first hydraulic cylinder respectively through the corresponding oil passage, and the second hydraulic cylinder is not The rod cavity and the rod cavity are respectively connected to the rod cavity and the rodless cavity of the third hydraulic cylinder through the corresponding oil passage, and the second and fourth hydraulic cylinders compress the gas in the first and fourth accumulators to make the first and the first The oil pressure in the four oil passages rises rapidly, and the movement of each hydraulic cylinder to the right side is subject to a large hydraulic pressure. Force, thereby generating a large anti-roll moment, to prevent the roll of the vehicle body. When the vehicle turns to the right, the working process is similar to the above, and will not be described here. The V-shaped rocker arm can change the direction of force transmission from The hydraulic cylinder can be conveniently arranged, and the hydraulic cylinder is horizontally arranged on the side of the vehicle body, so that the layout of the hydraulic cylinder can be made more compact; the roll stiffness of the lateral stabilizer can be adjusted by the gas pressure in the accumulator to achieve rigidity. The adjustment is convenient for debugging, disassembly and maintenance; at the same time, the lateral stabilizer can automatically adjust the stiffness of the stabilizer bar according to the operating conditions of the vehicle, effectively reduce the roll of the vehicle body, and improve the stability and comfort of the operation. In addition to the above advantages, the cross-linking lateral stabilizer can also improve the anti-pitch stiffness of the vehicle during the large pitching motion, thereby improving the anti-braking head and anti-driving performance of the vehicle.
在本车辆的其它实施例中：连杆机构还可以不设，此时液压缸的活塞杆可以直接与横向稳定杆铰接相连，液压缸的缸体铰接于车体上。In other embodiments of the vehicle, the link mechanism may not be provided. At this time, the piston rod of the hydraulic cylinder may be directly connected to the stabilizer bar, and the cylinder of the hydraulic cylinder is hinged to the vehicle body.
横向稳定装置的实施例如图1所示：横向稳定装置的具体结构与上述各车辆实施例中所述的横向稳定装置相同，在此不再详述。 The embodiment of the lateral stabilizer is shown in Fig. 1. The specific structure of the lateral stabilizer is the same as that of the lateral stabilizer described in the above vehicle embodiments, and will not be described in detail herein.

Claims (6)

  1. 车辆的横向稳定装置，其特征在于：包括前、后横向稳定杆，前横向稳定杆的左右两侧分别设置有第一液压缸和第二液压缸，后横向稳定杆的左右两侧分别设置有第三液压缸和第四液压缸，第一液压缸、第二液压缸的活塞杆分别与前横向稳定杆的左右端传动连接，第三液压缸、第四液压缸的活塞杆分别与后横向稳定杆的左右端传动连接，第一液压缸的有杆腔通过第一油路与所述第四液压缸的无杆腔相连，第一液压缸的无杆腔通过第二油路与第四液压缸的有杆腔相连，第二液压缸的有杆腔通过第三油路与第三液压缸的无杆腔相连，第二液压缸的无杆腔通过第四油路与第三液压缸的有杆腔相连，第一、第二、第三和第四油路上分别设置有第一、第二、第三和第四蓄能器。The lateral stabilizer of the vehicle is characterized in that: the front and rear lateral stabilizer bars are arranged, and the first hydraulic cylinder and the second hydraulic cylinder are respectively disposed on the left and right sides of the front lateral stabilizer bar, and the left and right sides of the rear lateral stabilizer bar are respectively disposed The third hydraulic cylinder and the fourth hydraulic cylinder, the piston rods of the first hydraulic cylinder and the second hydraulic cylinder are respectively connected with the left and right ends of the front lateral stabilizer bar, and the piston rods of the third hydraulic cylinder and the fourth hydraulic cylinder are respectively respectively and the rear lateral direction. The left and right ends of the stabilizer bar are connected to each other, and the rod cavity of the first hydraulic cylinder is connected to the rodless cavity of the fourth hydraulic cylinder through the first oil passage, and the rodless cavity of the first hydraulic cylinder passes through the second oil passage and the fourth The rod chamber of the hydraulic cylinder is connected, the rod chamber of the second hydraulic cylinder is connected to the rodless chamber of the third hydraulic cylinder through the third oil passage, and the rodless chamber of the second hydraulic cylinder passes through the fourth oil passage and the third hydraulic cylinder The rod chambers are connected, and the first, second, third and fourth oil passages are respectively provided with first, second, third and fourth accumulators.
  2. 根据权利要求1所述的横向稳定装置，其特征在于：各液压缸分别通过连杆机构与对应横向稳定杆传动连接。The lateral stabilizer according to claim 1, wherein each of the hydraulic cylinders is separately coupled to the corresponding stabilizer bar via a link mechanism.
  3. 根据权利要求2所述的横向稳定装置，其特征在于：连杆机构包括转动轴线沿横向延伸的动力输出拐臂和固设于动力输出拐臂上的动力输入拐臂，动力输出拐臂、动力输入拐臂构成V形结构，各横向稳定杆的左右两端分别通过对应传动连杆与对应动力输出拐臂相连，各液压缸的活塞杆分别与对应动力输入拐臂铰接相连。The lateral stabilizer according to claim 2, wherein the link mechanism comprises a power output arm extending in a lateral direction of the rotation axis, and a power input arm fixed on the power output arm, the power output arm, and the power The input arm forms a V-shaped structure, and the left and right ends of each lateral stabilizer bar are respectively connected to the corresponding power output arm through corresponding transmission links, and the piston rods of each hydraulic cylinder are respectively hingedly connected with the corresponding power input arm.
  4. 车辆，包括车体和车桥，其特征在于：还包括设置于车体与车桥之间的横向稳定装置，横向稳定装置包括前、后横向稳定杆，前横向稳定杆的左右两侧分别设置有第一液压缸和第二液压缸，后横向稳定杆的左右两侧分别设置有第三液压缸和第四液压缸，第一液压缸、第二液压缸的活塞杆分别与前横向稳定杆的左右端传动连接，第三液压缸、第四液压缸的活塞杆分别与后横向稳定杆的左右端传动连接，第一液压缸的有杆腔通过第一油路与所述第四液压缸的无杆腔相连，第一液压缸的无杆腔通过第二油路与第四液压缸的有杆腔相连，第二液压缸的有杆腔通过第三油路与第三液压缸的无杆腔相连，第二液压缸的无杆腔通过第四油路与第三液压缸的有杆腔相连，第一、第二、第三和第四油路上分别设置有第一、第二、第三和第四蓄能器。The vehicle, including the vehicle body and the axle, is characterized in that it further comprises a lateral stabilizer disposed between the vehicle body and the axle, the lateral stabilizer comprises front and rear lateral stabilizer bars, and the left and right sides of the front lateral stabilizer bar are respectively disposed There is a first hydraulic cylinder and a second hydraulic cylinder. The left and right sides of the rear lateral stabilizer bar are respectively provided with a third hydraulic cylinder and a fourth hydraulic cylinder. The piston rods of the first hydraulic cylinder and the second hydraulic cylinder respectively and the front lateral stabilizer rod The left and right end drive connections, the piston rods of the third hydraulic cylinder and the fourth hydraulic cylinder are respectively connected with the left and right ends of the rear lateral stabilizer rod, and the rod chamber of the first hydraulic cylinder passes through the first oil passage and the fourth hydraulic cylinder The rodless chamber is connected, the rodless chamber of the first hydraulic cylinder is connected to the rod chamber of the fourth hydraulic cylinder through the second oil passage, and the rod chamber of the second hydraulic cylinder passes through the third oil passage and the third hydraulic cylinder without The rod chamber is connected, and the rodless chamber of the second hydraulic cylinder is connected to the rod chamber of the third hydraulic cylinder through the fourth oil passage, and the first, second, third and fourth oil passages are respectively provided with the first and second Third and fourth accumulators.
  5. 根据权利要求4所述的车辆，其特征在于：各液压缸分别通过连杆机构与对应横向稳定杆传动连接。The vehicle according to claim 4, wherein each of the hydraulic cylinders is separately coupled to the corresponding stabilizer bar via a link mechanism.
  6. 根据权利要求5所述的车辆，其特征在于：连杆机构包括转动轴线沿横向延伸的动力输出拐臂和固设于动力输出拐臂上的动力输入拐臂，动力输出拐臂、动力输入拐臂构成V形结构，各横向稳定杆的左右两端分别通过对应传动连杆与对应动力输出拐臂相连，各液压缸的活塞杆分别与对应动力输入拐臂铰接相连。 The vehicle according to claim 5, wherein the link mechanism comprises a power output arm extending in a lateral direction of the rotation axis, and a power input arm fixed on the power output arm, the power output arm, and the power input The arms form a V-shaped structure, and the left and right ends of each of the lateral stabilizer bars are respectively connected to the corresponding power output arm by corresponding transmission links, and the piston rods of the respective hydraulic cylinders are respectively hingedly connected with the corresponding power input arm.
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