CN102950984B - Intelligent balance suspension system - Google Patents
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- CN102950984B CN102950984B CN201210437820.8A CN201210437820A CN102950984B CN 102950984 B CN102950984 B CN 102950984B CN 201210437820 A CN201210437820 A CN 201210437820A CN 102950984 B CN102950984 B CN 102950984B
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- 239000003381 stabilizer Substances 0.000 claims description 8
- 239000000446 fuel Substances 0.000 abstract description 10
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G5/00—Resilient suspensions for a set of tandem wheels or axles having interrelated movements
- B60G5/04—Resilient suspensions for a set of tandem wheels or axles having interrelated movements with two or more pivoted arms, the movements of which are resiliently interrelated, e.g. the arms being rigid
- B60G5/053—Resilient suspensions for a set of tandem wheels or axles having interrelated movements with two or more pivoted arms, the movements of which are resiliently interrelated, e.g. the arms being rigid a leafspring being used as equilibration unit between two axle-supporting units
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Abstract
一种智能平衡悬架系统，包括中桥、后桥、钢板弹簧、平衡轴壳、承载支座、气囊与托臂梁，所述钢板弹簧的两端分别与中、后桥连接，中部与平衡轴壳连接，平衡轴壳与承载支座上的平衡轴相铰连，中、后桥的顶部分别与中、后桥上推力杆相铰连，与后桥底部相连的后桥下推力杆与承载支座底部的一侧相铰连，承载支座底部的另一侧与托臂梁的一端相铰连，托臂梁的另一端通过横向稳定杆与气囊的底部固定连接，气囊的顶部与车架的底部固定连接，托臂梁的中部与中桥的底部相铰连。本设计不仅能改善中重型汽车在空载或轻载时轮胎的摩擦与燃油消耗量、自控调整能力较强，而且零部件数量较少、占用空间较小、应用范围较广。
An intelligent balanced suspension system, including a middle axle, a rear axle, a leaf spring, a balance shaft housing, a bearing support, an air bag and a support beam, the two ends of the leaf spring are respectively connected to the middle and rear axles, and the middle part is connected to the balance The shaft housing is connected, the balance shaft housing is hinged with the balance shaft on the bearing support, the tops of the middle and rear axles are respectively hinged with the upper thrust rods of the middle and rear axles, and the lower thrust rods of the rear axle connected with the bottom of the rear axle are connected with the One side of the bottom of the bearing support is hinged, and the other side of the bottom of the bearing support is hinged with one end of the support arm beam. The bottom of the vehicle frame is fixedly connected, and the middle part of the support beam is hinged with the bottom of the middle bridge. This design can not only improve the tire friction and fuel consumption of medium and heavy vehicles when they are empty or lightly loaded, and has a strong self-control adjustment ability, but also has fewer parts, occupies less space, and has a wider range of applications.
Description
技术领域 technical field
本发明涉及一种平衡悬架系统，尤其涉及一种智能平衡悬架系统，具体适用于自动分配中重型汽车中、后桥的负荷，改善中重型汽车在空载或轻载时轮胎的摩擦与燃油消耗量。 The invention relates to a balanced suspension system, in particular to an intelligent balanced suspension system, which is particularly suitable for automatically distributing the loads of the middle and rear axles of medium and heavy vehicles, and improving the friction and friction of tires when medium and heavy vehicles are empty or lightly loaded. Fuel consumption.
背景技术 Background technique
目前，为改善中重型汽车在空载或轻载时轮胎的摩擦与燃油消耗量，现有技术一般将后桥设计为可提升支承桥，该可提升支承桥在空载或轻载时可通过后支撑轴提起后桥，从而减少轮胎摩擦与燃油消耗量。常见的可提升支承桥一般包括两种，分别为空气悬架与摆臂式平衡悬架，其中：空气悬架对路况要求较高，成本较高，限制了应用范围，而且超载能力较差；摆臂式平衡悬架通过油缸将后支撑轴提起，需要采用独立的电动泵作为动力源，使用时，电动泵产生的压力油进入油缸以提起后支撑轴，但该设计不仅需要增加电动泵，成本较高，而且需要单独布置储油箱，结构复杂，零部件较多，不利于整车的总布置，同时，它对轮胎的改变只有提升与下降两种状态，即摩擦与不摩擦，不存在中间状态，难以根据实际负载对中、后桥的负荷进行自动调整，调整方式硬化，改善效果有限，自控调整能力较弱。 At present, in order to improve the tire friction and fuel consumption of medium and heavy vehicles when they are unloaded or lightly loaded, the prior art generally designs the rear axle as a liftable support bridge, which can pass through The rear support shaft lifts the rear axle, reducing tire friction and fuel consumption. Common liftable support bridges generally include two types, namely air suspension and swing arm balance suspension. Among them: air suspension has high requirements on road conditions, high cost, limited application range, and poor overload capacity; The swing arm type balance suspension lifts the rear support shaft through the oil cylinder, and needs to use an independent electric pump as the power source. When in use, the pressure oil generated by the electric pump enters the oil cylinder to lift the rear support shaft, but this design not only needs to increase the electric pump, The cost is high, and the oil storage tank needs to be arranged separately. The structure is complex and there are many parts, which is not conducive to the overall layout of the vehicle. At the same time, it only changes the tires in two states of lifting and lowering, that is, friction and non-friction. In the intermediate state, it is difficult to automatically adjust the load on the center and rear axles according to the actual load, the adjustment method is hardened, the improvement effect is limited, and the self-control adjustment ability is weak.
美国专利公开号为US5522469A，公开日为1996年6月4日的发明专利公开了一种车辆牵引力增强装置，并具体公开了如下技术特征：车辆牵引力增强装置包括中桥、后桥、钢板弹簧、气囊与平衡轴壳，所述钢板弹簧的前部与中桥相连接，后部与后桥相连接，中部与平衡轴壳相连接，该平衡轴壳与承载支座上的平衡轴相铰连，相邻的承载支座之间通过车架横梁相连接，车架横梁的中部与中桥上推力杆、后桥上推力杆的一端相铰连，中桥上推力杆的另一端与中桥的顶部相铰连，后桥上推力杆的另一端与后桥的顶部相铰连，后桥的底部与后桥下推力杆的一端相铰连，后桥下推力杆的另一端与承载支座底部的一侧相铰连，所述气囊的顶部与车架固定连接，底部与托架固定连接。虽然该发明能通过对气囊充气的方式以驱使中桥压向地面，从而增强地面与中桥轮胎之间的压力，进而提高地面、轮胎之间的驱动力，但它在空载或轻载时，中桥、后桥上的轮胎均与地面相接触，易加剧后桥轮胎的磨损，增加了燃油消耗量，无法改善中重型汽车在空载或轻载时轮胎的摩擦与燃油消耗量。 The U.S. Patent Publication No. is US5522469A, and the invention patent disclosed on June 4, 1996 discloses a vehicle traction enhancement device, and specifically discloses the following technical features: the vehicle traction enhancement device includes a middle axle, a rear axle, a leaf spring, The airbag is connected to the balance shaft housing, the front part of the leaf spring is connected to the middle bridge, the rear part is connected to the rear axle, and the middle part is connected to the balance shaft housing, and the balance shaft housing is hinged to the balance shaft on the bearing support , the adjacent bearing supports are connected by the frame beam, the middle part of the frame beam is hinged with the thrust rod on the middle bridge and one end of the thrust rod on the rear axle, and the other end of the thrust rod on the middle bridge is connected with the middle bridge The top of the rear axle is hinged, the other end of the thrust rod on the rear axle is hinged to the top of the rear axle, the bottom of the rear axle is hinged to one end of the lower thrust rod of the rear axle, and the other end of the lower thrust rod of the rear axle is connected to the bearing support One side of the bottom of the seat is hinged, the top of the airbag is fixedly connected with the vehicle frame, and the bottom is fixedly connected with the bracket. Although this invention can drive the mid-axle to the ground by inflating the airbag, thereby increasing the pressure between the ground and the mid-axle tires, and then improving the driving force between the ground and the tires, it cannot , the tires on the middle axle and the rear axle are all in contact with the ground, which will easily aggravate the wear of the rear axle tires and increase the fuel consumption. It is impossible to improve the friction and fuel consumption of the tires of medium and heavy vehicles when they are unloaded or lightly loaded.
发明内容 Contents of the invention
本发明的目的是克服现有技术中存在的自控调整能力较弱、零部件数量较多、占用空间较大、应用范围较窄的缺陷与问题，提供一种自控调整能力较强、零部件数量较少、占用空间较小、应用范围较广的智能平衡悬架系统。 The purpose of the present invention is to overcome the defects and problems of weak self-control adjustment ability, large number of parts, large space occupation and narrow application range in the prior art, and provide a self-control adjustment ability with strong self-control adjustment ability and low number of parts. An intelligent balanced suspension system with fewer, smaller footprints and a wider range of applications.
为实现以上目的，本发明的技术解决方案是：一种智能平衡悬架系统，包括中桥、后桥、钢板弹簧、气囊与平衡轴壳，所述钢板弹簧的前部与中桥相连接，后部与后桥相连接，中部与平衡轴壳相连接，该平衡轴壳与承载支座上的平衡轴相铰连，相邻的承载支座之间通过车架横梁相连接，车架横梁的中部与中桥上推力杆、后桥上推力杆的一端相铰连，中桥上推力杆的另一端与中桥的顶部相铰连，后桥上推力杆的另一端与后桥的顶部相铰连，后桥的底部与后桥下推力杆的一端相铰连，后桥下推力杆的另一端与承载支座底部的一侧相铰连，所述气囊与车架相连接； In order to achieve the above object, the technical solution of the present invention is: an intelligent balanced suspension system, including a middle bridge, a rear axle, a leaf spring, an air bag and a balance axle housing, the front part of the leaf spring is connected with the middle bridge, The rear part is connected with the rear axle, and the middle part is connected with the balance shaft shell. The balance shaft shell is hinged with the balance shaft on the bearing support. The adjacent load bearing supports are connected by the frame crossbeam. The middle part of the middle bridge is hinged with the thrust rod on the middle bridge and one end of the thrust rod on the rear bridge, the other end of the thrust rod on the middle bridge is hinged with the top of the middle bridge, and the other end of the thrust rod on the rear bridge is connected with the top of the rear bridge The bottom of the rear axle is hinged to one end of the lower thrust rod of the rear axle, the other end of the lower thrust rod of the rear axle is hinged to one side of the bottom of the bearing support, and the airbag is connected to the vehicle frame;
所述智能平衡悬架系统还包括托臂梁与横向稳定杆；所述托臂梁的中部与中桥的底部相铰连，托臂梁的一端与承载支座底部的另一侧相铰连，托臂梁的另一端通过横向稳定杆与气囊的底部固定连接，气囊的顶部与车架的底部固定连接。 The intelligent balance suspension system also includes a support arm beam and a stabilizer bar; the middle part of the support arm beam is hinged with the bottom of the middle bridge, and one end of the support arm beam is hinged with the other side of the bottom of the bearing support , the other end of the bracket beam is fixedly connected to the bottom of the airbag through the stabilizer bar, and the top of the airbag is fixedly connected to the bottom of the vehicle frame.
所述托臂梁由中桥下推力杆朝气囊方向刚性延伸而成；所述中桥下推力杆的一端与承载支座底部的另一侧相铰连，中桥下推力杆的另一端与中桥的底部相铰连。 The supporting arm beam is formed by rigidly extending the lower thrust rod of the middle bridge towards the direction of the air bag; one end of the lower thrust rod of the middle bridge is hinged with the other side of the bottom of the bearing support, and the other end of the lower thrust rod of the middle bridge is connected with the middle bridge The bottom is hinged.
所述钢板弹簧的中部通过U型螺栓与平衡轴壳相连接。 The middle part of the leaf spring is connected with the balance shaft housing through U-shaped bolts.
所述智能平衡悬架系统包括三种承载模式，分别为： The intelligent balance suspension system includes three bearing modes, which are:
4×2模式：整车后部的负荷由气囊、中桥承载，中桥驱动，后桥提升； 4×2 mode: the load at the rear of the vehicle is carried by the airbag and the middle axle, the middle axle is driven, and the rear axle is lifted;
6×2模式：整车后部的负荷由气囊、中桥、后桥承载，中桥、后桥承载的负荷相同，中桥、后桥承载的负荷之和加上气囊承载的负荷等于整车后部的负荷，中桥驱动，后桥随动； 6×2 mode: the load on the rear of the vehicle is carried by the airbag, the middle axle and the rear axle, the loads carried by the middle axle and the rear axle are the same, and the sum of the loads carried by the middle axle and the rear axle plus the load carried by the airbag is equal to the whole vehicle The load at the rear is driven by the middle axle and followed by the rear axle;
6×4模式：整车后部的负荷由中桥、后桥承载，气囊释放气压不再承载，中桥驱动，后桥驱动。 6×4 mode: the load at the rear of the vehicle is carried by the middle axle and the rear axle, and the airbag release pressure is no longer carried, the middle axle is driven, and the rear axle is driven.
所述6×4模式下，中桥、后桥为差速或等速驱动。 In the 6×4 mode, the middle axle and the rear axle are driven by differential speed or constant speed.
与现有技术相比，本发明的有益效果为： Compared with prior art, the beneficial effect of the present invention is:
1、本发明一种智能平衡悬架系统中增加了气囊与托臂梁，该托臂梁的中部与中桥的底部相铰连，托臂梁的一端与承载支座底部的另一侧相铰连，托臂梁的另一端通过横向稳定杆与气囊的底部固定连接，使用中共包括三种承载模式，分别为：4×2模式，整车后部的负荷由气囊、中桥承载；6×2模式，整车后部的负荷由气囊、中桥、后桥承载；6×4模式，整车后部的负荷由中桥、后桥承载，气囊释放气压不再承载。在整个过程中，中桥、后桥承载的负荷处于自动分配状态，可根据整车后部负荷的变化而不断调整，而不是只有全部承担与不承担这两种状态，不仅可以改善中重型汽车在空载或轻载时轮胎的摩擦与燃油消耗量，而且承载模式多样，自控调整能力强大。因此本发明不仅能改善中重型汽车在空载或轻载时轮胎的摩擦与燃油消耗量，而且自控调整能力较强。 1. An airbag and a support beam are added to an intelligent balanced suspension system of the present invention. The middle part of the support beam is hinged to the bottom of the middle bridge, and one end of the support beam is connected to the other side of the bottom of the bearing support. Hinged connection, the other end of the support arm beam is fixedly connected to the bottom of the airbag through the stabilizer bar. There are three load-bearing modes in use, namely: 4×2 mode, the load at the rear of the vehicle is carried by the airbag and the middle bridge; 6 In the ×2 mode, the load at the rear of the vehicle is carried by the airbag, the middle axle, and the rear axle; in the 6×4 mode, the load at the rear of the vehicle is carried by the middle axle and the rear axle, and the airbag release air pressure is no longer carried. During the whole process, the load carried by the middle axle and the rear axle is in the state of automatic distribution, which can be continuously adjusted according to the change of the load on the rear of the vehicle, instead of only being fully borne or not borne, which can not only improve the performance of medium and heavy vehicles The friction and fuel consumption of tires under no-load or light-load conditions, as well as various loading modes, have strong self-control and adjustment capabilities. Therefore, the invention can not only improve the friction and fuel consumption of the tires of medium and heavy vehicles when they are unloaded or lightly loaded, but also has strong self-control adjustment ability.
2、本发明一种智能平衡悬架系统中通过增加气囊、托臂梁来改善中重型汽车在空载或轻载时轮胎的摩擦与燃油消耗量，该设计的优点如下：首先，零部件数量较少，只包括气囊与托臂梁这两个零部件，而且托臂梁还可由中桥下推力杆刚性延伸而成；其次，占用空间很小，其中，气囊可设置在车架下方，占用空间很小，而托臂梁可由中桥下推力杆朝气囊方向刚性延伸而成，占用空间也很小；再次，改装时，本设计只需在现有技术的基础上安装气囊与延伸中桥下推力杆即可，操作简易，便于改装，有利于扩大本设计的应用范围，增加市场效益。因此本发明不仅零部件数量较少、占用空间较小，而且应用范围较广、市场效益较好。 2. In an intelligent balanced suspension system of the present invention, the friction and fuel consumption of the tires of medium- and heavy-duty vehicles can be improved by adding airbags and support beams when they are unloaded or lightly loaded. The advantages of this design are as follows: First, the number of parts It only includes two parts, the airbag and the supporting arm beam, and the supporting arm beam can also be rigidly extended by the thrust rod under the middle axle; secondly, it occupies very little space, among which the airbag can be set under the frame, occupying The space is very small, and the supporting arm beam can be formed by rigidly extending the thrust rod of the middle bridge towards the direction of the air bag, and the occupied space is also very small; again, when refitting, this design only needs to install the air bag and extend the middle bridge on the basis of the existing technology Just lower the thrust rod, which is easy to operate and easy to refit, which is conducive to expanding the application range of this design and increasing market benefits. Therefore, the present invention not only has fewer components and occupies less space, but also has a wider application range and better market benefits.
附图说明 Description of drawings
图1是本发明的主视图。 Fig. 1 is a front view of the present invention.
图2是图1的俯视图。 FIG. 2 is a top view of FIG. 1 .
图中：中桥1、后桥2、钢板弹簧3、平衡轴壳4、平衡轴41、承载支座5、气囊6、托臂梁7、车架8、车架横梁81、中桥上推力杆9、后桥上推力杆10、后桥下推力杆11、中桥下推力杆12、横向稳定杆13、U型螺栓14。 In the figure: middle axle 1, rear axle 2, leaf spring 3, balance shaft shell 4, balance shaft 41, bearing support 5, air bag 6, supporting arm beam 7, vehicle frame 8, vehicle frame beam 81, upper thrust of the middle bridge Bar 9, thrust bar 10 on the rear axle, thrust bar 11 under the rear axle, thrust bar 12 under the middle bridge, stabilizer bar 13, U-bolt 14.
具体实施方式 detailed description
以下结合附图说明和具体实施方式对本发明作进一步详细的说明。 The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
参见图1–图2，一种智能平衡悬架系统，包括中桥1、后桥2、钢板弹簧3、气囊6与平衡轴壳4，所述钢板弹簧3的前部与中桥1相连接，后部与后桥2相连接，中部与平衡轴壳4相连接，该平衡轴壳4与承载支座5上的平衡轴41相铰连，相邻的承载支座5之间通过车架横梁81相连接，车架横梁81的中部与中桥上推力杆9、后桥上推力杆10的一端相铰连，中桥上推力杆9的另一端与中桥1的顶部相铰连，后桥上推力杆10的另一端与后桥2的顶部相铰连，后桥2的底部与后桥下推力杆11的一端相铰连，后桥下推力杆11的另一端与承载支座5底部的一侧相铰连，所述气囊6与车架8相连接； Referring to Fig. 1-Fig. 2, an intelligent balance suspension system includes a middle axle 1, a rear axle 2, a leaf spring 3, an airbag 6 and a balance shaft housing 4, and the front part of the leaf spring 3 is connected to the middle axle 1 , the rear part is connected with the rear axle 2, the middle part is connected with the balance shaft housing 4, the balance shaft housing 4 is hinged with the balance shaft 41 on the bearing support 5, and the adjacent bearing supports 5 pass through the vehicle frame The crossbeam 81 is connected, the middle part of the vehicle frame crossbeam 81 is hinged with the thrust rod 9 on the middle bridge and one end of the thrust rod 10 on the rear bridge, and the other end of the thrust rod 9 on the middle bridge is hinged with the top of the middle bridge 1, The other end of the thrust rod 10 on the rear axle is hinged to the top of the rear axle 2, the bottom of the rear axle 2 is hinged to one end of the lower thrust rod 11 of the rear axle, and the other end of the lower thrust rod 11 of the rear axle is connected to the bearing support 5. One side of the bottom is hinged, and the air bag 6 is connected with the vehicle frame 8;
所述智能平衡悬架系统还包括托臂梁7与横向稳定杆13；所述托臂梁7的中部与中桥1的底部相铰连，托臂梁7的一端与承载支座5底部的另一侧相铰连，托臂梁7的另一端通过横向稳定杆13与气囊6的底部固定连接，气囊6的顶部与车架8的底部固定连接。 The intelligent balance suspension system also includes a support arm beam 7 and a stabilizer bar 13; the middle part of the support arm beam 7 is hinged with the bottom of the middle bridge 1, and one end of the support arm beam 7 is connected with the bottom of the bearing support 5. The other side is hinged, and the other end of the bracket beam 7 is fixedly connected to the bottom of the airbag 6 through the stabilizer bar 13 , and the top of the airbag 6 is fixedly connected to the bottom of the vehicle frame 8 .
所述托臂梁7由中桥下推力杆12朝气囊6方向刚性延伸而成；所述中桥下推力杆12的一端与承载支座5底部的另一侧相铰连，中桥下推力杆12的另一端与中桥1的底部相铰连。 The supporting arm beam 7 is formed by rigidly extending the lower thrust rod 12 of the middle bridge towards the direction of the air bag 6; The other end of bar 12 is hinged with the bottom of middle bridge 1 .
所述钢板弹簧3的中部通过U型螺栓14与平衡轴壳4相连接。 The middle part of the leaf spring 3 is connected with the balance shaft housing 4 through a U-bolt 14 .
所述智能平衡悬架系统包括三种承载模式，分别为： The intelligent balance suspension system includes three bearing modes, which are:
4×2模式：整车后部的负荷由气囊6、中桥1承载，中桥1驱动，后桥2提升； 4×2 mode: the load at the rear of the vehicle is carried by the airbag 6 and the middle axle 1, driven by the middle axle 1, and lifted by the rear axle 2;
6×2模式：整车后部的负荷由气囊6、中桥1、后桥2承载，中桥1、后桥2承载的负荷相同，中桥1、后桥2承载的负荷之和加上气囊6承载的负荷等于整车后部的负荷，中桥1驱动，后桥2随动； 6×2 mode: the load on the rear of the vehicle is carried by the airbag 6, the middle axle 1, and the rear axle 2. The loads carried by the middle axle 1 and the rear axle 2 are the same, and the sum of the loads carried by the middle axle 1 and the rear axle 2 plus The load carried by the airbag 6 is equal to the load at the rear of the vehicle, the middle axle 1 drives, and the rear axle 2 follows;
6×4模式：整车后部的负荷由中桥1、后桥2承载，气囊6释放气压不再承载，中桥1驱动，后桥2驱动。 6×4 mode: the load on the rear of the vehicle is carried by the middle axle 1 and the rear axle 2, the airbag 6 releases the air pressure and no longer bears the load, the middle axle 1 is driven, and the rear axle 2 is driven.
所述6×4模式下，中桥1、后桥2为差速或等速驱动。 In the 6×4 mode, the middle axle 1 and the rear axle 2 are driven by differential speed or constant speed.
本发明的原理说明如下： Principle of the present invention is described as follows:
参见图1与图2，本设计中当气囊6充气时，托臂梁7在承载支座5上不仅负责传递动力，同时还传递载荷，因而可通过控制气囊6的压力来转移、分配中桥1、后桥2上的负荷。具体过程如下： Referring to Fig. 1 and Fig. 2, when the airbag 6 is inflated in this design, the supporting arm beam 7 is not only responsible for transmitting the power but also the load on the bearing support 5, so the pressure of the airbag 6 can be controlled to transfer and distribute the mid-bridge 1. The load on the rear axle 2. The specific process is as follows:
气囊6充气逐渐增长，气囊6的底部相对于车架8向下移动，从而带动托臂梁7下移，下移的托臂梁7拉动中桥1下移，中桥1下移导致钢板弹簧3传递给中、后桥的载荷减少（气囊悬架承受了载荷），钢板弹簧3上载荷的减少使钢板弹簧3前部、后部的应变位移相应减小，应变位移的减小在形状上直接反应为：钢板弹簧3的前部、后部从相对中部在受载下趋于平直的状态转为相对中部趋于原始弓形（即前部、后部相对中部上翘）的状态。此时，与中桥1相关联的钢板弹簧3的前部被中桥1拉下，使平衡悬架上的钢板弹簧3的后部上翘以带动后桥2提升。本设计一共包括以下三种承载模式： The airbag 6 is inflated gradually, and the bottom of the airbag 6 moves downward relative to the frame 8, thereby driving the supporting arm beam 7 to move downward, and the downwardly moving supporting arm beam 7 pulls the middle bridge 1 to move down, and the downward movement of the middle bridge 1 causes the leaf spring 3 The load transmitted to the middle and rear axles is reduced (the airbag suspension bears the load), and the reduction of the load on the leaf spring 3 reduces the strain displacement of the front and rear parts of the leaf spring 3 correspondingly, and the reduction of the strain displacement is reflected in the shape The direct reaction is: the front and rear parts of the leaf spring 3 turn from a state where the relative middle part tends to be straight under load to a state where the relative middle part tends to the original bow shape (that is, the front and rear parts are upturned relative to the middle part). At this time, the front portion of the leaf spring 3 associated with the middle axle 1 is pulled down by the middle axle 1, so that the rear portion of the leaf spring 3 on the balance suspension is upturned to drive the rear axle 2 to lift. This design includes the following three bearing modes:
4×2模式：空载或载荷不超过气囊6、中桥1的设定负荷时：此时，整车后部的负荷完全由气囊6、中桥1承载，钢板弹簧3不产生应变位移，中桥1驱动，后桥2提升； 4×2 mode: when there is no load or the load does not exceed the set load of the airbag 6 and the middle axle 1: at this time, the load on the rear of the vehicle is completely carried by the airbag 6 and the middle axle 1, and the leaf spring 3 does not produce strain displacement. Middle axle 1 drives, rear axle 2 lifts;
6×2模式：载荷逐渐增大，并超过气囊6、中桥1的设定负荷时：此时，后桥2协助中桥1承担设定载荷溢出后的载荷，平衡悬架逐渐承载，平衡悬架发生作用，在钢板弹簧3上中桥1、后桥2承载的负荷相同，它们的承载之和加上气囊6的承载就等于整车后部的负荷，钢板弹簧3产生应变位移，中桥1驱动，后桥2随动； 6×2 mode: when the load gradually increases and exceeds the set load of the airbag 6 and the middle axle 1: at this time, the rear axle 2 assists the middle axle 1 to bear the load after the set load overflows, and the balance suspension gradually bears the load, and the balance When the suspension works, the loads carried by the middle axle 1 and the rear axle 2 on the leaf spring 3 are the same. The sum of their loads plus the load of the airbag 6 is equal to the load on the rear of the vehicle. Axle 1 drives, rear axle 2 follows;
6×4模式：载荷继续增大，已经满载或需要更大的驱动力时：需要实施双桥驱动，此时，气囊6释放气压不再承载，托臂梁7仅承担推力杆功能，恢复平衡悬架基本状态，由中桥1、后桥2共同承载整车后部的负荷，且相应调整驱动输出方式，实现中桥1、后桥2差速或等速驱动。 6×4 mode: the load continues to increase, when the load is already full or a greater driving force is required: double-axle drive is required. At this time, the airbag 6 releases the air pressure and no longer bears the load, and the supporting arm beam 7 only assumes the function of the thrust rod to restore balance In the basic state of the suspension, the middle axle 1 and the rear axle 2 jointly bear the load on the rear of the vehicle, and the drive output mode is adjusted accordingly to realize the differential or constant speed drive of the middle axle 1 and rear axle 2.
本设计可在现有技术上直接改装而成，气囊6可在车架8的下方直接安装，托臂梁7可由传统平衡悬架中的中桥下推力杆12朝气囊6方向刚性延伸而成。 This design can be directly modified from the existing technology. The airbag 6 can be directly installed under the frame 8. The support arm beam 7 can be formed by rigidly extending the lower thrust rod 12 of the middle bridge in the traditional balanced suspension toward the airbag 6. .
车上有共用气源，该共用气源通过气路对车上所有用气设备充气，待汽车启动完毕后，所有用气设备都充足气，气囊6也是如此，气囊6具体由共用气源经储气筒（起缓冲作用）对其进行充气。在后续使用过程中，当需要通过气囊6对中后桥轴荷进行分配调整时，车辆需要先处于静止状态，再通过手闸对气囊6进行放气或充气，但是，当在特殊路况出现气囊6过载时，为保证行车和系统安全，此时不需要停车，本发明即可快速释放气囊6中的所有气体，从而恢复重载状态时的平衡悬架状态，即平衡悬架的原始状态。 There is a shared air source on the car, and the shared air source inflates all the gas-consuming equipment on the car through the air circuit. After the car is started, all the gas-consuming equipment is fully inflated, and the same is true for the airbag 6. The airbag 6 is specifically provided by the shared air source through the The air reservoir (which acts as a cushion) inflates it. In the subsequent use process, when it is necessary to adjust the distribution and adjustment of the axle load of the middle and rear axles through the airbag 6, the vehicle needs to be in a stationary state first, and then deflate or inflate the airbag 6 through the hand brake. 6. When overloaded, in order to ensure the safety of driving and system, the present invention can quickly release all the gas in the airbag 6, thereby restoring the balanced suspension state during the heavy load state, i.e. the original state of the balanced suspension.
实施例： Example:
一种智能平衡悬架系统，包括中桥1、后桥2、钢板弹簧3、平衡轴壳4、承载支座5、气囊6与托臂梁7，所述钢板弹簧3的前部与中桥1相连接，后部与后桥2相连接，中部通过U型螺栓14与平衡轴壳4相连接，该平衡轴壳4与承载支座5上的平衡轴41相铰连，相邻的承载支座5之间通过车架横梁81相连接，车架横梁81的中部与中桥上推力杆9、后桥上推力杆10的一端相铰连，中桥上推力杆9的另一端与中桥1的顶部相铰连，后桥上推力杆10的另一端与后桥2的顶部相铰连，后桥2的底部与后桥下推力杆11的一端相铰连，后桥下推力杆11的另一端与承载支座5底部的一侧相铰连，承载支座5底部的另一侧与托臂梁7的一端相铰连，托臂梁7的另一端通过横向稳定杆13与气囊6的底部固定连接，气囊6的顶部与车架8的底部固定连接，托臂梁7的中部与中桥1的底部相铰连；所述托臂梁7可由中桥下推力杆12朝气囊6方向刚性延伸而成，该中桥下推力杆12的一端与承载支座5底部的另一侧相铰连，中桥下推力杆12的另一端与中桥1的底部相铰连。 An intelligent balanced suspension system, comprising a middle bridge 1, a rear axle 2, a leaf spring 3, a balance shaft housing 4, a bearing support 5, an air bag 6 and a support beam 7, the front part of the leaf spring 3 is connected to the middle bridge 1, the rear part is connected with the rear axle 2, and the middle part is connected with the balance shaft housing 4 through U-shaped bolts 14. The balance shaft housing 4 is hinged with the balance shaft 41 on the bearing support 5, and the adjacent bearing The bearings 5 are connected by a vehicle frame crossbeam 81, the middle part of the vehicle frame crossbeam 81 is hinged with the thrust rod 9 on the middle bridge and one end of the thrust rod 10 on the rear bridge, and the other end of the thrust rod 9 on the middle bridge is connected with the middle bridge. The top of the bridge 1 is hinged, the other end of the upper thrust rod 10 of the rear axle is hinged with the top of the rear axle 2, the bottom of the rear axle 2 is hinged with one end of the lower thrust rod 11 of the rear axle, and the lower thrust rod of the rear axle is hinged. The other end of 11 is hinged to one side of the bottom of bearing support 5, and the other side of the bottom of bearing support 5 is hinged to one end of support arm beam 7, and the other end of support arm beam 7 is connected to The bottom of the airbag 6 is fixedly connected, the top of the airbag 6 is fixedly connected with the bottom of the vehicle frame 8, and the middle part of the supporting arm beam 7 is hinged with the bottom of the middle bridge 1; The air bag 6 is rigidly extended, and one end of the lower thrust rod 12 of the middle bridge is hinged with the other side of the bottom of the bearing support 5, and the other end of the lower thrust rod 12 of the middle bridge is hinged with the bottom of the middle bridge 1.
上述智能平衡悬架系统包括三种承载模式，分别为： The above-mentioned intelligent balance suspension system includes three loading modes, which are:
4×2模式：空载或载荷不超过气囊6、中桥1的设定负荷时：此时，整车后部的负荷完全由气囊6、中桥1承载，中桥1驱动，后桥2提升； 4×2 mode: when there is no load or the load does not exceed the set load of airbag 6 and middle axle 1: at this time, the load on the rear of the vehicle is completely carried by airbag 6 and middle axle 1, driven by middle axle 1, and rear axle 2 promote;
6×2模式：载荷逐渐增大，并超过气囊6、中桥1的设定负荷时：此时，后桥2协助中桥1承担设定载荷溢出后的载荷，平衡悬架逐渐承载，平衡悬架发生作用，在钢板弹簧3上中桥1、后桥2承载的负荷相同，它们的承载之和加上气囊6的承载就等于整车后部的负荷，中桥1驱动，后桥2随动； 6×2 mode: when the load gradually increases and exceeds the set load of the airbag 6 and the middle axle 1: at this time, the rear axle 2 assists the middle axle 1 to bear the load after the set load overflows, and the balance suspension gradually bears the load, and the balance When the suspension works, the loads carried by the middle axle 1 and the rear axle 2 on the leaf spring 3 are the same. The sum of their loads plus the load of the airbag 6 is equal to the load on the rear of the vehicle. Follow up;
6×4模式：载荷继续增大，已经满载或需要更大的驱动力时：需要实施双桥驱动，此时，气囊6释放气压不再承载，托臂梁7仅承担推力杆功能，恢复平衡悬架基本状态，由中桥1、后桥2共同承载整车后部的负荷，且相应调整驱动输出方式，实现中桥1、后桥2差速或等速驱动。 6×4 mode: the load continues to increase, when the load is already full or a greater driving force is required: double-axle drive is required. At this time, the airbag 6 releases the air pressure and no longer bears the load, and the supporting arm beam 7 only assumes the function of the thrust rod to restore balance In the basic state of the suspension, the middle axle 1 and the rear axle 2 jointly bear the load on the rear of the vehicle, and the drive output mode is adjusted accordingly to realize the differential or constant speed drive of the middle axle 1 and rear axle 2.
由上可见，本设计实现了4×2、6×2、6×4模式下的承载转换，不仅能够有效减少中重型卡车在空载或轻载时不必要的燃油消耗，而且不影响原平衡悬架的承载和驱动性能，在6×2模式时，中桥1驱动，能保证整车在合理载荷下获取最佳驱动力，在需要6×4双桥驱动模式时，只需释放气囊6压力和改变驱动模式，即可完全恢复至原平衡悬架特性。因而，本设计结构简单，自控调整能力强大，安全性高，可靠性好，便于运用推广，特别适合高空驶率的油罐车、混凝土搅拌车等专用车辆的普及和使用。 It can be seen from the above that this design realizes load conversion in 4×2, 6×2, and 6×4 modes, which can not only effectively reduce unnecessary fuel consumption of medium and heavy trucks when they are empty or lightly loaded, but also do not affect the original balance The load-carrying and driving performance of the suspension, in the 6×2 mode, the mid-axle 1 drive can ensure that the vehicle can obtain the best driving force under a reasonable load, and when the 6×4 double-axle drive mode is required, only the airbag 6 needs to be released The original balanced suspension characteristics can be fully restored by simply pressing and changing the drive mode. Therefore, the design has a simple structure, strong self-control adjustment ability, high safety, good reliability, and is easy to use and popularize. It is especially suitable for the popularization and use of special vehicles such as oil tank trucks and concrete mixer trucks with high empty driving rates.
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| BR112015010233A BR112015010233A2 (en) | 2012-11-06 | 2012-12-18 | intelligent balanced suspension system |
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|---|---|---|---|---|
| US20090072505A1 (en) * | 2007-09-13 | 2009-03-19 | Tuthill Corporation | Vehicle suspension with trailing arm and axle assembly and method |
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2012
- 2012-11-06 CN CN201210437820.8A patent/CN102950984B/en active Active
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| US5522469A (en) * | 1995-03-30 | 1996-06-04 | Isuzu Motors Limited | Vehicle traction enhancement device |
| DE29612129U1 (en) * | 1996-04-05 | 1996-10-02 | BPW Bergische Achsen Kommanditgesellschaft, 51674 Wiehl | Axis integration |
| JPH10166825A (en) * | 1996-12-16 | 1998-06-23 | Fukoku Co Ltd | Air suspension mechanism |
| JP3619482B2 (en) * | 2001-09-28 | 2005-02-09 | 日野自動車株式会社 | Front axle structure of lift axle |
| CN1984789A (en) * | 2004-06-17 | 2007-06-20 | 霍兰集团公司 | Trailing beam suspension with alignment adjustment assembly |
| CN2832570Y (en) * | 2005-08-09 | 2006-11-01 | 中国重型汽车集团有限公司 | Multiple axes heavy load-carrying vehicle chassis |
| CN201099156Y (en) * | 2007-08-22 | 2008-08-13 | 安徽江淮汽车股份有限公司 | An Air Suspension Applicable to Heavy Truck Floating Bridge |
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| CN201863674U (en) * | 2010-01-26 | 2011-06-15 | 简式国际汽车设计（北京）有限公司 | Improved balanced suspension bracket of heavy truck |
| CN201745405U (en) * | 2010-07-26 | 2011-02-16 | 河北万众汽车零部件制造有限公司 | Air suspension of lift bridge |
| CN202896205U (en) * | 2012-11-06 | 2013-04-24 | 东风汽车有限公司 | Intelligent balance suspension system |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112015010233A2 (en) | 2017-07-11 |
| CN102950984A (en) | 2013-03-06 |
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