WO2017054551A1 - 一种橡胶轮胎低地板转向架 - Google Patents

一种橡胶轮胎低地板转向架 Download PDF

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Publication number
WO2017054551A1
WO2017054551A1 PCT/CN2016/090032 CN2016090032W WO2017054551A1 WO 2017054551 A1 WO2017054551 A1 WO 2017054551A1 CN 2016090032 W CN2016090032 W CN 2016090032W WO 2017054551 A1 WO2017054551 A1 WO 2017054551A1
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Prior art keywords
rubber
bogie
frame
motor
gearbox
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PCT/CN2016/090032
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English (en)
French (fr)
Inventor
钟敏
金伟
梁小强
楚永萍
冯遵委
徐力
赵旭东
陈德强
贾小平
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中车南京浦镇车辆有限公司
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Publication of WO2017054551A1 publication Critical patent/WO2017054551A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F3/00—Types of bogies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies

Definitions

  • the utility model relates to a novel bogie for urban public transportation vehicles, in particular to a rubber tire low floor bogie.
  • low-floor bogies such as the Chinese patent CN101979266 “100% low-floor light rail car independent wheel power bogie”
  • frame the frame side beam is a cantilever type that protrudes outward, and its convex cantilever Part of the motor suspension seat, the second spring mounting seat is arranged on the motor hanger.
  • the frame beam is connected to the bottom end of the middle part of the two frame side beams by a square frame structure.
  • the frame end beam adopts a U-shaped structure, and the bottom part is the same as the frame beam.
  • axle bridge mechanism two short shafts are supported by bearing units, each of which is respectively connected with an elastic wheel, the bearing unit is fixed on the short shaft through the bearing gland, and the bending shaft and the bearing unit are located on the short shaft There is a dustproof ring on the elastic wheel, a back cover is installed on the elastic wheel and a labyrinth seal is formed between the elastic ring and the bearing gland; (3) axle structure: the axle is composed of two The short shaft is composed of a bearing unit comprising two tapered roller bearings of different sizes, one of which is fitted in the inner hole of the wheel; (4) two wheels on the same side of the bogie are fixed on the motor drive shaft, the motor and the two gears Connection.
  • the vehicle with such a structure bogie has a large volume and a long body, and the prepared streamline performance of the vehicle is not good, and the traffic speed of the urban area with a large population and a large number of vehicles cannot be guaranteed.
  • the utility model provides a rubber tire low floor bogie, which adopts a rubber tire and an improved position and control mode of the motor gear box device, so that the rail vehicle can be driven on both the trackless road and the high flow. Line performance.
  • a rubber tire low floor bogie comprising an independent wheel set, a frame, a motor gearbox transmission, a secondary suspension device, and a traction device, the frame being composed of two side beams, two beams and two end beams;
  • the second suspension device is located at four corners of the bogie;
  • the traction device is mounted at an intermediate position outside the frame cross member;
  • the independent wheel pair includes a rubber wheel, a brake device, a shaft bridge and a transmission device, the brake device Located on the inner side of the rubber wheel;
  • the axle bridge includes a main body having a U-shaped structure in the middle and a connecting portion on both sides of the main body; the connecting portion is a hollow structure;
  • the transmission device includes a bearing axle box, and the transmission To the transmission gear box and the drive shaft, the drive shaft runs through the connection portion of the hollow structure, and the drive shaft is located at one end of the main body of the axle bridge to connect the reverse direction transmission gear box, and the reverse direction transmission gear box drives the drive shaft to rotate, and the
  • the motor gearbox transmission device is installed in the middle of the side frame of the frame, and comprises a motor and a gear box.
  • the motor and the gear box are designed as one body, the motor is arranged in a lateral direction, the gear box is arranged in a longitudinal direction and the gear box is output to both ends at the same time;
  • the gearbox drive is connected to the two variable direction gearboxes on the same side of the motor gearbox drive via two universal joints.
  • the secondary suspension device comprises four secondary springs, two transverse dampers, four vertical dampers, four lateral elastic stops; the four secondary springs and four vertical reductions
  • the vibrators are correspondingly distributed at the four corners of the bogie, and the vertical dampers are located outside the two-springs; the two lateral dampers and the four lateral elastic stops respectively correspond to the vertical damper at right angles Installed and the two lateral dampers are located diagonally to the bogie.
  • the frame is a welded or integrally cast frame structure.
  • the traction device is selected from a traction rubber pile.
  • the rubber tire is a solid rubber tire.
  • the two-spring is a spiral steel spring or an air spring or a rubber pile spring or an hourglass rubber spring.
  • U-shaped axle bridge is adopted to reduce the height of the vehicle body and improve the safety performance of the rail vehicle; at the same time, the connecting portion at both ends of the axle bridge is a hollow structure, and the driving shaft penetrates the connecting portion of the hollow structure, and the rear ends are respectively connected with the variable-direction transmission gear Box and bearing axleboxes save space for independent wheelsets compared to prior art gearboxes mounted on the outside of the tire.
  • Each wheel has a variable direction gearbox, each of which is independent of each other and not connected in the middle, and the left and right wheels are independently rotated by the drive shaft, which is more than the existing car.
  • the advantage of the structure of the front and rear axles is that the wheel pair can be controlled to travel in a straight line or curve by actively controlling the difference in rotational speed between the left and right wheels, so that the vehicle can realize automatic tracking control.
  • the bogie is used on a low-floor vehicle with a steering control system.
  • the steering control system controls the two motor gearbox devices of the bogie.
  • the two motor gearboxes have different rotational speeds, thereby enabling the vehicle to Automatically proceeding along the preset line, the driver does not need to participate in the normal steering operation, only responsible for acceleration and deceleration; and the use of rubber tires enables the rail vehicle to run on urban roads without laying rails.
  • the utility model has two corners of the two-spring distribution bogie, which is arranged in the middle of the bogie compared with the existing bogie two-spring, which can uniformly support the weight of the vehicle body and better maintain the balance of the vehicle body.
  • Vehicles with new rubber tire low-floor bogies can be compatible with existing bus pavements, and have the characteristics of large volume, low carbon and environmental protection like traditional rail vehicles. It is an ideal city ground public. Traffic vehicles can gradually replace buses as the main ground public transport in the city, and the market prospect is very good.
  • Figure 1 is a three-dimensional schematic view of a rubber tire low floor vehicle
  • Figure 2 is a front view of a rubber tire low floor vehicle
  • Figure 3 is a side view of the shaft of the independent wheelset of the rubber tire low floor vehicle
  • Figure 4 is a cross-sectional view of an independent wheel pair of a rubber tire low floor vehicle
  • a rubber tire low floor bogie as shown in Figures 1-2 includes an independent wheel set 1, a frame 2, two motor gearbox transmissions 3, a two-line suspension device, and a traction device, and the frame 2 is composed of two One side beam, two beams and two end beams;
  • the motor gearbox transmission 3 is installed in the middle of the side beam of the frame 2, including the motor and the gear box, the motor and the gear box are designed as one body, and the motor is horizontal Arrangement, the gear box is longitudinally arranged and output to both ends, which can shorten the wheelbase of the bogie, making the bogie lighter and the curve passing performance better;
  • one motor gearbox transmission 3 passes through two universal joints 4 respectively
  • Two variable direction gearboxes 1-4 are located on the same side of the motor gearbox transmission 3.
  • the independent wheel set 1 (shown in Figures 3-4) includes a rubber wheel 1-1, a brake device, a axle bridge 1-2, a transmission, and the axle bridge 1-2 includes a centrally concave U-shaped a connecting portion of the hollow body of the main body of the structure and the two ends of the body on the same axis;
  • the transmission device comprises a bearing axle box 1-3, a direction changing gear box 1-4 and a driving shaft 1-5;
  • the driving shaft 1 -5 is inserted through the connection portion of the hollow structure, the drive shaft 1-5 is located at one end of the main body of the axle bridge 1-2 and is connected to the reverse direction transmission gear box 1-4, and the other end of the drive shaft 1-5 is fixedly connected to the bearing shaft box 1-3
  • the inner surface of the bearing axle box 1-3 is fixed to the outer surface of the hollow structure connecting portion, and the outer surface of the bearing shaft box 1-3 is mounted with the rubber wheel 1-1.
  • variable-direction transmission gear box 1-4 When the vehicle is running, the longitudinal driving force of the drive system is transmitted to the variable-direction transmission gear box 1-4, and the spiral-transparent bevel gear is used inside the variable-direction transmission gear box 1-4 to change the driving force direction into the lateral direction, and then through the driving shaft 1 - 5 is transmitted to the bearing axle box 1-3, and the bearing axle box 1-3 drives the rubber wheel 1-1 to operate.
  • variable direction transmission gear box 1-4 can convert the longitudinal driving torque transmitted from the vehicle driving system into the lateral driving torque; in addition, the independent wheel pair two left and right variable direction transmission gear boxes 1-4 are independent of each other, and the middle is not connected.
  • the advantage of the structure of the front and rear axles of the existing automobile is that the floor surface of the vehicle body can be lowered, and the axle bridge 1-2 is matched with the foregoing, so that the floor surface of the vehicle body can lower the center plane of the wheel, so that the floor surface ratio of the vehicle The prior art is lower; each rubber wheel 1 is equipped with a variable direction gearbox 1-4, which is independent of each other.
  • the advantage of this structure is that the rotational speeds of the left and right rubber wheels 1-1 on the same wheel pair can be independent. Control, you can control the wheel pair to travel in a straight line or curve by actively controlling the difference between the left and right rubber wheels 1-1, so that the vehicle can realize automatic tracking control.
  • the control system on the train will control the difference in the rotational speed of the rubber tires on the left and right sides of the bogie by controlling the difference between the left and right motors, so that the bogie can run along a preset straight line or curve, which can be realized.
  • the frame 2 is a welded frame structure.
  • the traction device is mounted in the middle of the cross member of the frame 2.
  • the traction device adopts a parallel rod stretching traction system.
  • the rubber tire is a hollow rubber tire.
  • the secondary suspension device comprises four secondary springs 5, two transverse dampers 9, four vertical dampers 7, four transverse elastic stops 8; the four secondary springs 5 are distributed in the steering Four corners of the frame; the four vertical dampers 7 are distributed on the four corners of the bogie and on one side of the four two-springs 5; the two lateral dampers 9 and four lateral directions
  • the elastic stops 8 are distributed on the other side of the four secondary springs 5 at the four corners of the bogie and are at right angles to the vertical damper 7; and the two transverse dampers 9 are located on the bogie pair Corner position.
  • the two springs 5 distribute the four corners of the bogie.
  • the frame 2 is a welded or integrally cast frame structure.
  • the traction rubber pile 10 is mounted at an intermediate position outside the cross member of the frame 2.
  • the rubber tire is solid Heart rubber tires.
  • the two-spring spring 5 is a spiral steel spring or an air spring or a rubber stack spring or an hourglass rubber spring.

Abstract

一种橡胶轮胎低地板转向架，包括独立轮对（1）、构架（2）、电机齿轮箱传动装置（3）、二系悬挂装置、牵引装置，构架（3）由两个侧梁、两个横梁和两个端梁组成；独立轮对（1）包括四个橡胶轮胎（1-1）和四个变向传动齿轮箱（1-4），每个橡胶轮胎（1-1）上配备一个变向传动齿轮箱（1-4）；电机齿轮箱传动装置（3）安装于构架（2）侧梁的中部，包括电机和齿轮箱，电机和齿轮箱设计为一体式，电机为横向布置，齿轮箱为纵向布置并且齿轮箱同时向两端输出；电机齿轮箱传动装置通过两个万向节分别连接位于电机齿轮箱传动装置同侧的两个变向传动齿轮箱。因此，该橡胶轮胎低地板转向架实现了轨道车辆可在无轨道路面行驶，实现了具备该转向架的车辆完全低地板、高流线性能。

Description

一种橡胶轮胎低地板转向架 技术领域
本实用涉及一种新型的城市公共交通车辆用转向架，具体为一种橡胶轮胎低地板转向架。
背景技术
传统的轨道车辆(如现代有轨电车)有着车辆编组场运量大、采用电力牵引噪音低、无尾气排放，入口低便于上下车等优点，是一种广受青睐的城市公共交通车辆，但其采用的转向架均采用钢轮，且需要行驶在专门铺设在钢轨上。而铺设钢轨会带来较高的造价、破坏路面等不利影响，因此有轨电车只能在郊区或高新区等新规划的区域，不适用于市区内地面交通，使得有轨电车难以大量普及。现已有很多低地板转向架，如中国专利CN101979266“100％低地板轻轨车独立轮动力转向架”，其(1)构架：构架侧梁为向外凸出的悬臂式，其凸出的悬臂部分作为电机吊座，二系弹簧安装座设在电机吊座上，构架横梁采用方形框架结构连接在两个构架侧梁中部的底端，构架端梁采用U形结构，其底部与构架横梁同在一个平面；(2)轴桥机构：两根短轴通过轴承单元支撑，各自分别连接一个弹性车轮，轴承单元通过轴承压盖固定在短轴上，在短轴上位于弯轴和轴承单元之间设有防尘圈，弹性车轮上安装有后盖并与防尘圈之间形成迷宫密封，弹性车轮与轴承压盖之间设有叠片密封环；(3)车轴结构：车轴由两根短轴组成，轴承单元包括两大小不同的圆锥滚子轴承，其中一个轴承装配在车轮内孔中；(4)转向架同一侧的两个车轮固定在电机驱动轴上，电机与两个齿轮箱联接。这种具有这种结构转向架的车辆体积较大，车身较长，所制备的车辆流线性能不佳，应用于人口较多、车辆较多的市区通行速度得不到保证。
实用新型内容
为了解决上述技术问题，本实用提供一种橡胶轮胎低地板转向架，其通过采用橡胶轮胎及改进电机齿轮箱装置的位置及控制方式，使得轨道车辆既可于无轨道路面行驶，又具备高流线性能。
本实用所采取的具体技术手段为：
一种橡胶轮胎低地板转向架，包括独立轮对、构架、电机齿轮箱传动装置、二系悬挂装置、牵引装置，所述构架由两个侧梁、两个横梁和两个端梁组成；所述二系悬挂装置位于转向架的四个角；所述牵引装置安装于构架横梁外侧的中间位置；所述独立轮对包括橡胶车轮、制动装置、轴桥和传动装置，所述制动装置位于橡胶车轮的内侧；所述轴桥包括中间下凹呈U形结构的主体和主体两端位于同一轴线上的连接部；所述连接部为空心结构；所述传动装置包括轴承轴箱、变向传动齿轮箱和驱动轴，所述驱动轴贯穿于空心结构的连接部，驱动轴位于轴桥主体的一端连接变向传动齿轮箱，变向传动齿轮箱带动驱动轴转动，驱动轴的另一端固定连接轴承轴箱，轴承轴箱在驱动轴的传动下转动；所述轴承轴箱的内表面固定于空心结构连接部的外表面，轴承轴箱的外表面安装有橡胶车轮；所述橡胶车轮在轴承轴箱的带动下运行；
所述电机齿轮箱传动装置安装于构架侧梁的中部，包括电机和齿轮箱，电机和齿轮箱设计为一体式，电机为横向布置，齿轮箱为纵向布置并且齿轮箱同时向两端输出；电机齿轮箱传动装置通过两个万向节分别连接位于电机齿轮箱传动装置同侧的两个变向传动齿轮箱。
其中，所述二系悬挂装置包括四个二系簧、两个横向减振器、四个垂向减振器、四个横向弹性止挡；所述四个二系簧和四个垂向减振器对应分布于转向架的四个角，并且垂向减震器位于二系簧的外侧；所述两个横向减振器和四个横向弹性止挡分别对应与垂向减震器呈直角安装，并且两个横向减振器位于转向架对角线位置。
其中，所述构架为焊接或者整体铸造的框架结构。
其中，所述牵引装置选用牵引橡胶堆。
其中，所述橡胶轮胎为实心橡胶轮胎。
其中，所述二系簧为螺旋钢弹簧或空气弹簧或橡胶堆弹簧或沙漏橡胶弹簧。
本实用的有益效果：
(1)采用U形轴桥，实现降低车体高度，提高轨道车辆的安全性能；同时轴桥两端的连接部为空心结构，驱动轴贯穿空心结构的连接部后两端分别连接变向传动齿轮箱和轴承轴箱，相比现有技术中传动装置安装于轮胎的外部，节省了独立轮对的空间。
(2)每个车轮上均带有变向传动齿轮箱，每个变向传动齿轮箱之间相互独立，中间不连通，其左右两车轮各自在驱动轴带动下独立旋转，比现有的汽车前后桥的结构的优势是，可以通过主动控制左右两个车轮之间的转速差来控制轮对按直线或者曲线行驶，便于车辆实现自动循迹控制。
(3)该种转向架用于带有导向控制系统的低地板车辆上，导向控制系统通过控制转向架的两个电机齿轮箱装置，是两个电机齿轮箱具备不同的转速，进而使得车辆可以自动地沿着预设的线路前进，司机不需参与正常的转向操作，只负责加速和减速；而选用橡胶轮胎则使得轨道车辆能够不铺设轨道就能运行于市区路面。
(4)本实用的二系簧分布转向架四个角，相比现有转向架二系簧布置在转向架中部，此方案可以均匀地的支撑车体重量，更好地保持车体平衡。
(5)采用新型橡胶轮胎低地板转向架的车辆可以兼容现有公共汽车路面，又能像传统的轨道车辆一样具有运量大、低碳环保的特点，是一种较为理想的市内地面公共交通车辆，可逐步取代公共汽车成为主要的市内地面公共交通工具，市场前景非常好。
附图说明
附图1橡胶轮胎低地板车辆的三维示意图；
附图2橡胶轮胎低地板车辆的前视图；
附图3橡胶轮胎低地板车辆的独立轮对的轴侧视图；
附图4橡胶轮胎低地板车辆的独立轮对的剖视图；
图中独立轮对1、构架2、电机齿轮箱传动装置3、轴桥装置4、二系簧5、垂向减振器7、横向弹性止挡8、横向减振器9、牵引橡胶堆10、橡胶车轮1-1、轴桥1-2、轴承轴箱1-3、变向传动齿轮箱1-4、驱动轴1-5、车体1-6。
具体实施方式
为了更好的解释本实用的技术方案，下面结合附图1-4和实施例进行详细说明。
实施例
如附图1-2所示的一种橡胶轮胎低地板转向架，包括独立轮对1、构架2、两个电机齿轮箱传动装置3、二系悬挂装置、牵引装置，所述构架2由两个侧梁、两个横梁和两个端梁组成；所述电机齿轮箱传动装置3安装于构架2侧梁的中部，包括电机和齿轮箱，电机和齿轮箱设计为一体式，并且电机为横向布置，齿轮箱为纵向布置同时向两端输出，这样可以缩短转向架的轴距，使得转向架重量更轻，曲线通过性能更优；一个电机齿轮箱传动装置3通过两个万向节4分别连接位于电机齿轮箱传动装置3同侧的两个变向传动齿轮箱1-4。所述独立轮对1(如附图3-4所示)包括橡胶车轮1-1、制动装置、轴桥1-2、传动装置，所述轴桥1-2包括中间下凹呈U形结构的主体和主体两端位于同一轴线上的空心结构的连接部；所述传动装置包括轴承轴箱1-3、变向传动齿轮箱1-4和驱动轴1-5；所述驱动轴1-5贯穿于空心结构的连接部，驱动轴1-5位于轴桥1-2主体的一端连接变向传动齿轮箱1-4，驱动轴1-5的另一端固定连接轴承轴箱1-3；所述轴承轴箱1-3的内表面固定于空心结构连接部的外表面，轴承轴箱1-3的外表面安装有橡胶车轮1-1。
车辆运行时，驱动系统的纵向驱动力传递到变向传动齿轮箱1-4上，变向传动齿轮箱1-4内部采用螺伞齿轮，将驱动力方向变换为横向，再经过驱动轴1-5传递到轴承轴箱1-3上，轴承轴箱1-3带动橡胶车轮1-1运行。
其中，变向传动齿轮箱1-4可将从车辆驱动系统传递过来的纵向驱动扭矩变换成横向驱动扭矩；另外独立轮对左右两个变向传动齿轮箱1-4相互独立，中间不连通，比现有的汽车前后桥的结构的优势是，可以降低车体内的地板面，与前面所述的轴桥1-2配合，使得车体地板面可以降低车轮中心面以下，使得车辆地板面比现有技术更低；每个橡胶车轮1均配有一个变向传动齿轮箱1-4，相互独立，这种结构的优势在于同一轮对上的左右两个橡胶车轮1-1的转速可以独立控制，可以通过主动控制左右两个橡胶车轮1-1之间的转速差来控制轮对按直线或者曲线行驶，便于车辆实现自动循迹控制。
在实际运营过程中，列车上的控制系统将通过控制左右两个电机的转速差来控制转向架左右两侧的橡胶轮胎的转速差，使得转向架沿着预设的直线或者曲线运行，可实现车辆的自动循迹行驶。所述构架2为焊接框架结构。所述牵引装置安装于构架2横梁的中间位置。作为本实用的进一步改进，所述牵引装置选用平行杆拉伸牵引系统。所述橡胶轮胎为空心橡胶轮胎。
所述二系悬挂装置包括四个二系簧5、两个横向减振器9、四个垂向减振器7、四个横向弹性止挡8；所述四个二系簧5分布于转向架的四个角；所述四个垂向减振器7分布于转向架的四个角上并位于四个二系簧5的一侧；所述两个横向减振器9和四个横向弹性止挡8对应分布于转向架的四个角上位于四个二系簧5的另一侧，并与垂向减振器7呈直角关系；并且两个横向减振器9位于转向架对角线位置。在这里二系簧5分布转向架四个角，相比现有转向架二系簧5布置在转向架中部，此方案可以均匀地的支撑车体重量，更好地保持车体平衡。所述构架2为焊接或者整体铸造的框架结构。牵引橡胶堆10安装于构架2横梁外侧的中间位置。为了提高车辆轮胎的承受力和耐摩擦性能，所述橡胶轮胎为实 心橡胶轮胎。所述二系簧5为螺旋钢弹簧或空气弹簧或橡胶堆弹簧或沙漏橡胶弹簧。
应当理解的是，本实用的上述具体实施方式仅仅用于示例性说明或解释本实用的原理，而不构成对本实用的限制。因此，在不偏离本实用的精神和范围的情况下所做的任何修改、等同替换、改进等，均应包含在本实用的保护范围之内。此外，本实用所附权利要求旨在涵盖落入所附权利要求范围和边界、或者这种范围和边界的等同形式内的全部变化和修改例。

Claims (6)

  1. 一种橡胶轮胎低地板转向架，包括独立轮对、构架、电机齿轮箱传动装置、二系悬挂装置、牵引装置，所述构架由两个侧梁、两个横梁和两个端梁组成；所述二系悬挂装置位于转向架的四个角；所述牵引装置安装于构架横梁外侧的中间位置；其特征在于：
    所述独立轮对包括橡胶车轮、制动装置、轴桥和传动装置，所述制动装置位于橡胶车轮的内侧；所述轴桥包括中间下凹呈U形结构的主体和主体两端位于同一轴线上的连接部；所述连接部为空心结构；所述传动装置包括轴承轴箱、变向传动齿轮箱和驱动轴，所述驱动轴贯穿于空心结构的连接部，驱动轴位于轴桥主体的一端连接变向传动齿轮箱，变向传动齿轮箱带动驱动轴转动，驱动轴的另一端固定连接轴承轴箱，轴承轴箱在驱动轴的传动下转动；所述轴承轴箱的内表面固定于空心结构连接部的外表面，轴承轴箱的外表面安装有橡胶车轮；所述橡胶车轮在轴承轴箱的带动下运行；
    所述电机齿轮箱传动装置安装于构架侧梁的中部，包括电机和齿轮箱，电机和齿轮箱设计为一体式，电机为横向布置，齿轮箱为纵向布置并且齿轮箱同时向两端输出；电机齿轮箱传动装置通过两个万向节分别连接位于电机齿轮箱传动装置同侧的两个变向传动齿轮箱。
  2. 根据权利要求1所述一种橡胶轮胎低地板转向架，其特征在于，所述二系悬挂装置包括四个二系簧、两个横向减振器、四个垂向减振器、四个横向弹性止挡；所述四个二系簧和四个垂向减振器对应分布于转向架的四个角，并且垂向减震器位于二系簧的外侧；所述两个横向减振器和四个横向弹性止挡分别对应与垂向减震器呈直角安装，并且两个横向减振器位于转向架对角线位置。
  3. 根据权利要求1所述的一种橡胶轮胎低地板转向架，其特征在于，所述构架为焊接或者整体铸造的框架结构。
  4. 根据权利要求1所述的一种橡胶轮胎低地板转向架，其特征在于，所述牵引装置选用牵引橡胶堆。
  5. 根据权利要求1所述的一种橡胶轮胎低地板转向架，其特征在于：所述橡胶轮胎为实心橡胶轮胎。
  6. 根据权利要求1所述的一种橡胶轮胎低地板转向架，其特征在于：所述二系簧为螺旋钢弹簧或空气弹簧或橡胶堆弹簧或沙漏橡胶弹簧。
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