CN113291343B

CN113291343B - Rubber wheel train and bogie system thereof

Info

Publication number: CN113291343B
Application number: CN202010112654.9A
Authority: CN
Inventors: 肖磊; 张陈林; 杨勇; 肖化友; 付建朝; 周承明; 李俊义; 李岩
Original assignee: CRRC Zhuzhou Institute Co Ltd
Current assignee: CRRC Zhuzhou Institute Co Ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2023-06-30
Anticipated expiration: 2040-02-24
Also published as: CN113291343A

Abstract

The invention relates to the field of urban public transportation equipment, in particular to a rubber-tyred train and a bogie system thereof. The invention proposes a rubber-tyred train bogie system comprising: the driving braking system is used for driving or braking the rubber wheel; the wheel edge structure provides an installation position for the rubber wheel and drives the rubber wheel to rotate and turn; the suspension system is used for buffering and damping the vibration of the vehicle body and connecting the vehicle body and the bogie frame; the bogie frames comprise a left bogie frame and a right bogie frame, are of a C-shaped low-floor structure, and are connected with and support a suspension system, a driving braking system and a wheel rim structure; the steering pull rod is connected with the left bogie frame and the right bogie frame, and the steering of the rubber wheels is ensured to meet the set relation in a mechanical way; and the driving guide system drives the steering pull rod to move so as to drive the bogie frame and the wheel edge structure, thereby realizing the steering of the rubber wheels. The invention meets the requirements of train power dispersion and low floor, and can flexibly configure the vehicle and the bogie according to actual requirements.

Description

Rubber wheel train and bogie system thereof

Technical Field

The invention relates to the field of urban public transportation equipment, in particular to a rubber-tyred train and a bogie system thereof.

Background

In recent years, urban rail transit in China has been rapidly developed, and the urban rail transit refers to a special line public transportation system with continuous guiding capability, and is characterized by having specific rails along which vehicles run. Common urban rail transit has subways, light rails, trams and the like. The subway and the light rail are built on the ground or a viaduct, and free running in a special track is realized by using an occlusion mode, and the subway and the light rail have strong transportation capacity, but have larger purchase cost of an early-stage infrastructure and vehicles, so that the subway and the light rail cannot be widely applied to small and medium cities. Tramcars require specialized power system and track designs, whether they are relatively expensive to design and construct or maintain, and subject to operating environments.

At present, rubber-tyred trains are favored in large and medium-sized cities by virtue of energy conservation, economy, green and environmental protection. The rubber-tyred train with the low floor is popular because no platform is needed to be arranged, and passengers can get on or off the train conveniently.

The rubber-tyred train bogie system is a main component of a railway vehicle and has a critical influence on the running safety and stability of the vehicle. The bogie system of the rubber-tyred train plays roles of bearing, guiding and restraining in the rubber-tyred train, mainly bears the load of the train body, and transmits traction force and braking force so as to ensure the safe running of the train and smooth passing through curves, and simultaneously improve the running stability, safety and reliability of the train.

When the rubber-tyred train needs to realize rail-like operation, all bogies are required to be guided. Existing truck systems have the following three typical configurations.

Fig. 1 discloses a schematic view of a mechanically guided rubber-tyred power bogie system according to the prior art, which bogie system as shown in fig. 1 mainly consists of a mechanical guiding system 101, a driving shaft 102, rubber wheels 103, etc.

The bogie system has the following problems:

1) Because the mechanical guiding system 101 is passively guided, special rails or auxiliary guiding devices are required to be paved on the ground, and high construction cost and long construction period are brought;

2) The driving shaft 102 is of a structure with a speed reducer, so that the driving shaft is difficult to achieve low floor, and therefore, the driving shaft can only be arranged on the forefront or the last bogie on a long-grouped rubber-tyred vehicle, and the power distribution is difficult to achieve.

Fig. 2a and 2b disclose a top view and a front view, respectively, of a prior art active steering rubber wheel power bogie system, such as the bogie system shown in fig. 2a and 2b consisting essentially of an active steering system 201, a drive shaft 202, rubber wheels 203, etc.

The bogie system shown in fig. 2a and 2b has the following features:

the active steering system 201 solves the problem of the mechanical steering system 101 shown in fig. 1 driving the bogie system to steer, and the road adaptability is high.

The bogie system shown in fig. 2a and 2b has the following problems:

the driving shaft 202 is also a high-low plate, so that the requirement of power dispersion of the rubber-tyred train is difficult to meet.

Fig. 3a and 3b disclose a top view and a front view, respectively, of a prior art active steering rubber-tyred truck system, such as the truck system shown in fig. 3a and 3b consisting essentially of an active steering system 301, a non-drive shaft 302, rubber-tyred 303, etc.

The bogie system shown in fig. 3a and 3b has the following features:

the active steering system 301 solves the problem of the mechanical steering system 101 shown in fig. 1 driving the bogie system to steer, and the road adaptability is high.

The bogie system shown in fig. 3a and 3b has the following problems:

1) The adopted non-driving shaft 302 is a low floor, so that the requirement of the passing performance in the passenger room of the rubber-tyred vehicle is met;

2) Because the power is not provided, the power dispersion requirement of the rubber-tyred train is difficult to meet.

Disclosure of Invention

The invention aims to provide a rubber-tyred train and a bogie system thereof, which solve the problems of insufficient power, high floor height and poor dynamic performance caused by long marshalling of the rubber-tyred train in the prior art.

In order to achieve the above object, the present invention provides a rubber-tired train bogie system comprising an active guiding system, a driving braking system, a suspension system, a bogie frame, a steering rod, a wheel rim structure and rubber wheels:

the driving braking system is connected with the wheel edge structure and used for driving or braking the rubber wheel;

the wheel edge structure is connected with the rubber wheel and provides an installation position for the rubber wheel to drive the rubber wheel to rotate and turn;

the suspension system is connected with the bogie frame and the vehicle body, is used for buffering and damping the vibration of the vehicle body and is connected with the vehicle body and the bogie frame;

the bogie frame is of a C-shaped low-floor structure and is connected with and supports the suspension system, the driving braking system and the wheel edge structure;

the bogie frames comprise a left bogie frame and a right bogie frame, the steering pull rod is connected with the left bogie frame and the right bogie frame, and the steering of the rubber wheels is ensured to meet the set relation in a mechanical way;

the driving guide system is connected with the steering pull rod and drives the steering pull rod to move so as to drive the bogie frame and the wheel edge structure to realize rubber wheel steering.

In one embodiment, the drive brake system includes a motor controller and a drive motor:

the motor controller is connected with the driving motor and used for controlling the output torque of the driving motor to realize driving or braking;

and the driving motor is connected with the wheel edge structure and drives or brakes the rubber wheel to rotate.

In one embodiment, the motor controller electronically differentially controls the drive motor.

In one embodiment, the suspension system is comprised of an air spring and a shock absorber that meet set stiffness and damping requirements.

In one embodiment, the active steering system is a controllable hydraulic ram.

In one embodiment, the active guidance system is an electric motor.

In one embodiment, the tie rod connects the knuckle arms of the left and right bogie frames, and the steering of the left and right rubber wheels satisfies the geometric law of ackerman steering.

In one embodiment, the rubber-tyred train bogie system further comprises a vehicle body connection interface providing connection locations between the left bogie frame, the right bogie frame and the vehicle body for transmitting longitudinal, transverse and vertical forces.

In order to achieve the above object, the present invention provides a rubber-tyred train comprising a head car and an intermediate car, at least one of the truck systems of the head car and the intermediate car being adapted as described above.

In an embodiment, the number of head vehicles is 2, wherein one head vehicle is used as a head and the other head vehicle is used as a tail.

The rubber-tyred train and the bogie system thereof provided by the invention meet the requirements of power dispersion and low floor of the train, and can flexibly configure the vehicle and the bogie according to actual requirements.

The rubber-tyred train and the bogie system thereof provided by the invention have the following beneficial effects:

1) The bogie system has traction power, meets the power dispersion requirement of the rubber-tyred train, and has high vehicle energy utilization efficiency; the plurality of bogie systems can perform electric braking, and abrasion of basic braking is reduced; the redundancy of the vehicle is high, and the influence of the failure of the individual traction units on the traction index of the whole train is not great; the power can be flexibly increased and reduced in grouping, the bearing capacity is good, and the market popularization capability is wider;

2) The bogie system is a low floor, the floor of the main passage area from front to back of the rubber-tyred train is a stepping-free area, the floor height is not more than 350mm, the boarding and alighting of disabled people are greatly facilitated, the boarding and alighting speeds of common passengers are improved, the time for entering and exiting the vehicle can be saved to a certain extent, and the system transportation capacity is increased.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description of embodiments taken in conjunction with the accompanying drawings in which like reference characters designate like features throughout the drawings, and in which:

FIG. 1 discloses a schematic diagram of a mechanically guided rubber-tyred power truck system according to the prior art;

FIG. 2a discloses a top view of an active steering rubber-tyred power truck system according to the prior art;

FIG. 2b discloses a front view of an active steering rubber-tyred power truck system according to the prior art;

FIG. 3a discloses a top view of an active steering wheel follower truck system according to the prior art;

FIG. 3b discloses a front view of an active steering wheel follower truck system according to the prior art;

FIG. 4a discloses a front view of a rubber-tyred train bogie system according to one embodiment of the invention;

FIG. 4b discloses a top view of a rubber-tyred train bogie system according to one embodiment of the invention;

FIG. 5 discloses a close-up view of a rubber-tyred train bogie system according to one embodiment of the present invention;

FIG. 6a discloses a first head gear schematic of a rubber tyer train in accordance with an embodiment of the present invention;

FIG. 6b discloses a second head gear schematic of a rubber tyer train in accordance with an embodiment of the present invention;

FIG. 7a discloses a third head gear schematic of a rubber tyer train in accordance with an embodiment of the present invention;

FIG. 7b discloses a fourth head gear schematic of a rubber tyer train in accordance with an embodiment of the present invention;

FIG. 8a discloses a schematic view of a first intermediate car of a rubber-tyred train in accordance with one embodiment of the invention;

FIG. 8b discloses a schematic view of a second intermediate car of a rubber tyer train in accordance with an embodiment of the present invention;

FIG. 9a discloses a third intermediate car schematic of a rubber tyer train in accordance with an embodiment of the present invention;

FIG. 9b discloses a fourth intermediate car schematic of a rubber tyer train in accordance with an embodiment of the present invention;

fig. 10 discloses a schematic diagram of an exemplary power dispersion configuration of a three-consist rubber-tyred train in accordance with one embodiment of the invention.

The meaning of the reference numerals in the figures is as follows:

101. a mechanical guidance system;

102. a drive shaft;

103. a rubber wheel;

201. an active guidance system;

202. a drive shaft;

203. a rubber wheel;

301. an active guidance system;

302. a non-drive shaft;

303. a rubber wheel;

401. an active guidance system;

402. a motor controller;

403. a suspension system;

404. a wheel edge structure;

405. a driving motor;

406. a rubber wheel;

407. a left bogie frame;

408. a right bogie frame;

409. a steering tie rod;

410. a vehicle body connection interface;

411. direction of kingpin

501. A power bogie system;

502. a non-power bogie system.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The bogie system of the novel rubber-tyred train and the bogie system thereof provided by the invention can be a non-driving structure, a wheel-side driving structure or a wheel hub driving structure, so that the rubber-tyred train with various bogie system structural forms is formed, and the problems of insufficient power, low floor height, poor dynamic performance and the like caused by long marshalling of the rubber-tyred train are solved.

Fig. 4a and 4b disclose a front view and a top view, respectively, of a rubber-tyred train bogie system according to an embodiment of the present invention, in the embodiment shown in fig. 4a and 4b, a rubber-tyred train bogie system according to the present invention comprises an active guiding system 401, a suspension system 403, a rim structure 404, a driving brake system, rubber wheels 406, a bogie frame, a steering tie 409 and a car body connection interface 410.

The active guiding system 401 is connected with a steering pull rod 409 and is used for driving the steering pull rod 409 on the bogie frame to move, and then driving the wheel rim structure 404 to rotate around the master pin, so as to realize steering of the rubber wheels 406. Fig. 5 is an enlarged view of a portion of the encircled portion of fig. 4a, with the rim structure 404 rotated about the kingpin direction 411 as shown in fig. 5.

In the embodiment shown in fig. 4a and 4b, the active steering system 401 is a controllable hydraulic cylinder, but in other embodiments it may be implemented as a motor control or other means for moving the steering linkage 409.

The rim structure 404 is connected with the rubber wheel 406, and provides an installation position for the rubber wheel 406, and is used for installing the rubber wheel 406, and driving the rubber wheel 406 to rotate and turn together.

The suspension system 403 is connected with the bogie frame and the car body, and is used for buffering and damping the vibration of the car body and ensuring the running stability and comfort of the rubber-tyred train.

In the embodiment shown in fig. 4a and 4b, the suspension system 403 consists of an air spring, a shock absorber, with a certain stiffness and damping.

A driving braking system connected with the rim structure 404 for driving or braking the rubber wheel 406

In the embodiment shown in fig. 4a and 4b, the drive brake system comprises a motor controller 402 and a drive motor 405.

The motor controller 402 is connected with the driving motor 405, and is used for controlling the output torque of the driving motor 405 to realize driving or electric braking.

In one embodiment, the motor controller 402 has an electronic differential function, and performs electronic differential control on the driving motor 405.

The driving motor 405 further includes a gearbox, which is connected to the rim structure 404 and is used for driving the rubber wheel 406 to rotate.

The rubber tyre 406 is composed of wheels and tires and is used for bearing the load of the vehicle.

The bogie frames comprise a left bogie frame 407 and a right bogie frame 408. Bogie frames are divided into cast steel frames and welded frames in terms of design and manufacturing processes, and are applicable in embodiments of the present invention.

The left bogie frame 407 is a C-shaped low floor structure, and is connected to and supports the suspension system 403, the driving motor 405, the wheel rim structure 404, etc. of the left bogie system.

The right bogie frame 408 is a C-shaped low floor structure, and is connected to and supports the suspension system 403, the driving motor 405, the wheel rim structure 404, etc. of the right bogie system.

The steering tie rod 409 is used to connect the left bogie frame 407 and the right bogie frame 408, and mechanically ensures that the steering of the left and right rubber wheels 406 satisfies a set relationship.

In one embodiment, the steering tie rods 409, the knuckle arms connecting the left and right bogie frames 407, 408, steer the left and right rubber wheels 406 to satisfy the geometric laws of ackerman steering.

The Ackerman steering geometry (English: ackermann steering geometry) is a geometry that aims to solve the problem that the centers of the directions of the paths of the inner steering wheel and the outer steering wheel are different when the vehicle turns. According to the vehicle with the Ackerman steering geometry design, when the vehicle turns along a curve, the equal crank of the four connecting rods is utilized to enable the steering angle of the inner side wheel to be about 2-4 degrees larger than that of the outer side wheel, so that the circle centers of the four wheel paths are approximately intersected with the instantaneous steering center on the extension line of the rear axle, and the vehicle can smoothly turn.

In the embodiment shown in fig. 4a and 4b, the body connection interface 410 is used for connection between the left bogie frame 407, the right bogie frame 408 and the body, providing a connection location between the left bogie frame 407, the right bogie frame 408 and the body, transmitting longitudinal, lateral and vertical forces.

In general, the vehicle longitudinal direction is set to be the longitudinal direction, the vehicle width direction is set to be the lateral direction, and the vehicle height direction is set to be the vertical direction.

The power bogie system of the rubber-tyred train provided by the invention has traction power, and a low-floor structure is arranged between the left bogie frame and the right bogie frame, so that the requirements of power dispersion and low floor of the rubber-tyred train are met.

Low floors are the most attractive trend for rubber-tyred trains. The low-floor rubber-tyred train has the characteristics of no steps in a door area, no transverse steps in the train, large space in the train and the like, the center of gravity of the whole train is reduced, the running stability and the running comfort are improved, and the low-floor rubber-tyred train is popular with passengers.

Based on the power bogie system, the invention provides a novel rubber-tyred train which consists of a head car and a middle carriage.

The truck has a cab, and the walking system comprises two bogie systems, wherein the two bogie systems can be the power bogie systems, or one is the power bogie systems, one is a non-power bogie system, or both bogie systems are unpowered bogie systems. When the bidirectional running is considered, the head car can be used as a head car or a tail car. Fig. 6 a-7 b disclose 4 head car schematic views of different bogie systems, respectively.

Fig. 6a discloses a schematic view of a first truck of a rubber-tyred train according to an embodiment of the invention, in which embodiment shown in fig. 6a both truck systems of the first truck's track system are the power truck systems 501 described above.

Fig. 6b discloses a schematic diagram of a second truck of a rubber-tyred train according to an embodiment of the invention, in which in the embodiment shown in fig. 6b two truck systems of the travelling system of the second truck are the above-mentioned power truck system 501 on the side close to the cab and the non-power truck system 502 on the side remote from the cab.

Fig. 7a discloses a schematic diagram of a third head of a rubber-tyred train according to an embodiment of the invention, in which in the embodiment shown in fig. 7a, two bogie systems in the travelling system of the third head are non-power bogie systems 502 on the side close to the cab and the above-mentioned power bogie systems 501 on the side remote from the cab.

Fig. 7b discloses a fourth head of a rubber-tyred train according to an embodiment of the invention, in which embodiment shown in fig. 7b both bogie systems in the running system of the fourth head are non-power bogie systems 502.

The middle carriage belongs to an extensible structural form, and the shape moving system comprises two bogie systems, wherein the two bogie systems can be the power bogie systems, or one of the bogie systems is the power bogie system, the other bogie system is the non-power bogie system, or the two bogie systems are all the unpowered bogie systems. Fig. 8 a-9 b disclose 4 intermediate car schematic diagrams of different bogie systems, respectively.

Fig. 8a discloses a schematic view of a first intermediate car of a rubber-tyred train according to an embodiment of the invention, in which embodiment shown in fig. 8a both bogie systems in the travelling system of the first intermediate car are the power bogie systems 501 described above.

Fig. 8b discloses a schematic diagram of a second intermediate car of a rubber-tyred train according to an embodiment of the invention, in which in the embodiment shown in fig. 8b two bogie systems in the travelling system of the second intermediate car are shown, the power bogie system 501 described above on the left and the non-power bogie system 502 on the right.

Fig. 9a discloses a schematic diagram of a third intermediate car of a rubber-tyred train according to an embodiment of the invention, in which in the embodiment shown in fig. 9a two bogie systems in the travelling system of the third intermediate car are on the left side a non-power bogie system 502 and on the right side the power bogie system 501 described above.

Fig. 9b discloses a schematic view of a fourth intermediate car of a rubber-tyred train according to one embodiment of the invention, in which embodiment shown in fig. 9b both bogie systems in the running system of the fourth intermediate car are non-power bogie systems 502.

The invention provides a novel rubber-tyred train, wherein a head train and intermediate carriages can be flexibly combined according to actual needs, and the number of the intermediate carriages can be increased or reduced according to the actual needs. Considering the bidirectional running, 2 head vehicles can be adopted, one head vehicle is used as a head, and the other head vehicle is used as a tail. When one-way driving is considered, 1 head car can be adopted as the head car.

Fig. 10 discloses a schematic diagram of a typical power dispersion configuration of a three-consist rubber-tyred train according to one embodiment of the present invention, in which the rubber-tyred train is composed of two head cars and one middle car, one head car being the head and the other head car being the tail, in the embodiment shown in fig. 10. Wherein, two bogie systems in the shape moving system of the head car are non-power bogie systems 502 on the side close to the cab, the power bogie systems 501 on the side far away from the cab, and the two bogie systems in the shape moving system of the middle carriage are the power bogie systems 501.

The rubber wheel train provided by the invention adopts the power bogie system to solve the technical problems of insufficient power, high floor height and poor dynamic performance of the rubber wheel bogie system in the prior art, has various power configurations, can be matched according to actual needs, and solves the problem of long marshalling of vehicles.

While, for purposes of simplicity of explanation, the methodologies are shown and described as a series of acts, it is to be understood and appreciated that the methodologies are not limited by the order of acts, as some acts may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, as would be understood and appreciated by those skilled in the art.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.

The embodiments described above are intended to provide those skilled in the art with a full range of modifications and variations to the embodiments described above without departing from the inventive concept thereof, and therefore the scope of the invention is not limited by the embodiments described above, but is to be accorded the broadest scope consistent with the innovative features recited in the claims.

Claims

1. The rubber-tired train bogie system is characterized by comprising an active guiding system, a driving braking system, a suspension system, a bogie frame, a steering pull rod, a wheel edge structure and rubber wheels:

the active guiding system is connected with the steering pull rod and drives the steering pull rod to move so as to drive the bogie frame and the wheel edge structure to realize rubber wheel steering;

wherein, the drive braking system includes motor controller and driving motor:

2. The rubber-tyred train bogie system of claim 1, wherein the motor controller electronically differentially controls the drive motor.

3. The rubber-tyred train bogie system of claim 1, wherein the suspension system consists of air springs and shock absorbers, meeting set stiffness and damping requirements.

4. The rubber-tyred train bogie system of claim 1, wherein the active guidance system is a controllable hydraulic ram.

5. The rubber-tyred train bogie system of claim 1, wherein the active guidance system is an electric motor.

6. The rubber-tyred train bogie system of claim 1, wherein the steering tie rod, the knuckle arm connecting the left bogie frame and the right bogie frame, the steering of the left and right rubber-tyred wheel satisfies the geometric law of ackerman steering.

7. The rubber-tyred train truck system of claim 1 further comprising a body connection interface providing a connection location between the left truck frame, the right truck frame and the body to transmit longitudinal, lateral, and vertical forces.

8. A rubber-tyred train comprising a head car and an intermediate car, wherein at least one of the truck systems of the head car and intermediate car employs the truck system of any one of claims 1-7.

9. The rubber-tyred train of claim 8, wherein the number of head cars is 2, one head car being a head and the other head car being a tail.