CN114044017B

CN114044017B - Embrace rail formula rail vehicle and turn to structure, rail vehicle

Info

Publication number: CN114044017B
Application number: CN202111325180.7A
Authority: CN
Inventors: 杨超; 苗蕾; 董士琦; 严君; 邝勇; 曹先敏; 樊文逸
Original assignee: Dongfeng Motor Corp; Dongfeng Yuexiang Technology Co Ltd
Current assignee: Dongfeng Motor Corp; Dongfeng Yuexiang Technology Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2023-03-10
Anticipated expiration: 2041-11-10
Also published as: CN114044017A

Abstract

The invention solves the problems of rail attachment and steering of the railway vehicle by the rail-holding type support and the guide wheel structure aiming at the problems of rail attachment and steering in the design process of the railway vehicle bogie. Meanwhile, the front bogie and the rear bogie are respectively hinged through a vertical shaft and a horizontal shaft, so that the vehicle has certain yaw and roll freedom degrees, and the vehicle can smoothly run on the track. Aiming at the difficult problem of tire burst maintenance on the empty rail vehicle rail, the explosion-proof stabilizing wheel is arranged to ensure that the tire burst vehicle has certain driving capacity and can drive to a maintenance station.

Description

Embrace rail formula rail vehicle and turn to structure, rail vehicle

Technical Field

The invention relates to a steering and safety control technology of a rail holding type railway vehicle, in particular to a steering structure of the rail holding type railway vehicle and a railway vehicle suitable for the steering structure.

Background

The rail vehicle refers to a type of transportation means or transportation system in which an operating vehicle needs to run on a specific rail, and the rail vehicle refers to a special vehicle running on a single rail. Due to the special driving scene, the steering mechanism of the rail car needs to meet the steering requirement of the car, and also needs to ensure the good rail attaching capability of the car, so that the car can be prevented from derailing, and the design difficulty of the rail car is always difficult.

There are 2 related patents in the prior art as follows: a bogie (202110369339.9) for ultra light rail transit vehicles has the following disadvantages: in a non-rail-clamping structure, the bogies are hinged by vertical shafts, and the vehicle does not have certain yaw freedom degree; a bogie structure of PRT suspension train and operation system (CN 207617731U) containing the bogie structure, its shortcoming is: the non-rail holding structure, the bogie and the vehicle beam are in a single hinge structure.

Disclosure of Invention

The invention solves the problems of rail attachment and steering of the railway vehicle by the rail-holding type support and the guide wheel structure aiming at the problems of rail attachment and steering in the design process of the railway vehicle bogie. Meanwhile, the front bogie and the rear bogie are respectively hinged through a vertical shaft and a horizontal shaft, so that the vehicle has certain yaw and roll freedom degrees, and the vehicle can smoothly run on the track. Aiming at the difficult problem of tire burst maintenance on the empty rail vehicle rail, the anti-explosion stabilizing wheels are arranged to ensure that the tire burst vehicle has certain driving capacity and can be driven to a maintenance station.

The technical problems solved by the invention are as follows:

the rail holding type structure solves the problem of rail attaching stability of the monorail vehicle;

the front and the back respectively use a vertical shaft structure and a transverse shaft structure, and the vehicle has certain yaw and roll freedom degrees in the running process of the railway vehicle;

the wheel stabilizing device solves the problem of driving capability of the inflated wheel type railway vehicle after tire burst.

The specific technical scheme of the invention is as follows:

the invention provides a rail holding type railway vehicle steering structure as a first aspect, which comprises a vehicle frame, a front steering frame and a rear steering frame. The frame provides the connection for whole steering structure and chassis, and preceding, back bogie provides the support for steering mechanism.

3 guide wheels are respectively arranged on the inner sides of the left side and the right side of the bottom end of the front bogie and the rear bogie, and the guide wheels are fixed with the front bogie and the rear bogie by elastic tensioning devices. The guide wheel is contacted with the track and clamps the track under the action of the elastic tensioning device.

The top end of the front bogie is coaxially hinged with the middle beam of the frame through a vertical shaft mechanism, and the top end of the rear bogie is coaxially hinged with the middle beam of the frame through a horizontal shaft mechanism, so that the front bogie and the rear bogie have the freedom degrees in the yaw direction and the roll direction.

And the hinged parts of the top ends of the front bogie and the rear bogie and the middle beam of the frame are respectively provided with a driving wheel for driving the vehicle to run on the track.

At least two explosion-proof stable wheels are arranged on the bottom surface of the middle beam, the explosion-proof stable wheels are symmetrically arranged at the central point of the middle beam, and the lowest tread of each explosion-proof stable wheel is higher than the lowest tread of each driving wheel. The wheels have certain clearance with the track under the normal running state and are not in direct contact. When the driving wheel is flat due to tire burst and empty, the explosion-proof stable wheel device can support the vehicle and prevent the vehicle from rolling at a large angle.

With reference to the first aspect, in a first case of any one of the possible cases, the 3 guide wheels have a structure that 2 transverse guide wheels are arranged at two ends of one of the bottom ends of the front and rear bogies, and 1 vertical guide wheel is arranged in the middle of one of the bottom ends of the front and rear bogies. Can play a clamping action to the track transversely and vertically, guarantee vehicle stability.

With reference to the first aspect or the first case mentioned above, in a second case in any one of the possible cases, the anti-explosion stabilizing wheels are respectively arranged at the bottom of the middle beam part coaxial with the hinged parts of the front bogie and the rear bogie and the frame.

With reference to the first aspect or the first and second cases, a third case in any possible case is that the method further includes: the front end and the rear end of the frame are provided with anti-collision beam devices, and the front end and the rear end of the frame are provided with suspension devices.

With reference to the first aspect or the first, second, and third aspects, a fourth aspect under any one of the possible situations is that the driving wheel is an inflatable tire, the driving wheel is configured with an electrically controlled valve, the electrically controlled valve includes a valve, a pneumatic control unit, and a tire pressure sensor installed in the pneumatic control unit, and the pneumatic control unit and the tire pressure sensor are in data communication connection with the electronic control unit. And monitoring the tire pressures of all driving wheels of the vehicle in real time, and deflating the driving wheels according to instructions, so that the whole vehicle stably descends until all the explosion-proof stable wheel devices are in contact with the track.

With reference to the first aspect or one of the first to the fourth aspects, in a fifth aspect, the wheel of the explosion-proof and stable wheel is a solid tire made of rubber.

With reference to the first aspect or one of the first to fifth aspects described above, a sixth aspect in any one of its possible cases is that the drive wheel is a double-wheel set.

With reference to the first aspect or one of the first to sixth aspects described above, in a seventh aspect of any one of the possible aspects, the drive wheel is provided with a central tire inflation system device including the electronically controlled valve.

As a second aspect, the invention discloses a rail holding type railway vehicle, which is equipped with a rail holding type railway vehicle steering structure as described in the first aspect and any one of the possible cases.

The beneficial effects of the invention are:

the rail holding type bogie and the self-tensioning guide wheel ensure the stable rail attaching capability and good steering performance of the vehicle.

The front and rear steering frames are hinged with the frame through a vertical shaft and a transverse shaft respectively, so that the chassis has freedom degrees in the yaw and roll directions, the chassis is ensured not to be directly transmitted to the frame (and a carriage) during running on a curve and a ramp, and good stability is achieved.

The explosion-proof stable wheel structure ensures that the vehicle body does not incline at a large angle under the condition of tire burst of the driving shaft, and the vehicle has certain driving capability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic illustration of a railway vehicle steering mechanism configuration;

FIG. 2 is a schematic view of a bogie and a guide wheel;

FIG. 3 is a schematic view of the vertical axle connection of the front truck to the frame rail;

FIG. 4 is a schematic view of a cross-axle connection of the rear truck to the frame rails;

fig. 5 is a schematic structural view of the explosion-proof stabilizing wheel.

The attached drawings are as follows: the anti-explosion steering system comprises a frame 1, a front steering frame 2, a rear steering frame 3, a guide wheel 4, a vertical shaft 5, a transverse shaft 6, a driving wheel 7 and an anti-explosion stabilizing wheel 8.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. It is obvious that the described embodiments are only some of the embodiments of the invention.

Example 1:

as shown in figure 1, the invention provides a rail holding type rail vehicle steering structure which comprises a vehicle frame 1, a front bogie 2 and a rear bogie 3. The frame 1 provides the connection for the whole steering structure and the chassis, and the front and the rear steering frames provide the support for the steering mechanism.

As shown in fig. 2, 3 guide wheels 4 are respectively installed on the inner sides of the left and right sides of the bottom ends of the front and rear bogies, and the guide wheels 4 are fixed with the front and rear bogies by elastic tensioning devices. The structure of the 3 guide wheels 4 is as follows: two ends of one of the sides of the bottom ends of the front and rear bogies are provided with 2 transverse guide wheels 4, and the middle of one of the sides of the bottom ends of the front and rear bogies is provided with 1 vertical guide wheel 4. The structure gives 2 horizontal guide wheels 4 horizontal clamping force and 1 vertical guide wheel 4 vertical clamping force through the elastic tensioning device. Thereby realize horizontal, vertical ascending two-way centre gripping, guaranteed the fastness of 3 leading wheels 4 and track combination to the rail ability of attaching of vehicle has been ensured.

As shown in figure 3, the top end of the front steering frame 2 is coaxially hinged with the center sill of the frame 1 through a vertical shaft 5 mechanism.

As shown in fig. 4, the top end of the rear bogie 3 is coaxially hinged to the center sill of the vehicle frame 1 via a cross shaft 6 mechanism.

The front and rear steering frames are hinged with the frame 1 through a vertical shaft 5 and a horizontal shaft 6 respectively, so that the steering frames have the freedom degrees in the yaw and roll directions, and the vehicles can stably pass through the turning positions of the tracks. The technique of articulation with the frame 1 by means of vertical 5 and horizontal 6 axes is well known in the automotive field.

As shown in fig. 3 and 4, the hinged joints of the top ends of the front and rear bogies and the middle beam of the frame 1 are respectively provided with a double-wheel and parallel-mounted driving wheel 7. The driving wheel 7 is placed above the track, and the vehicle is driven to run on the track through the driving wheel 7.

As shown in fig. 5, two double-wheel solid tires made of rubber are arranged on the bottom surface of the middle beam as the explosion-proof and stable wheels 8, the explosion-proof and stable wheels 8 are respectively arranged at the bottom of the middle beam part coaxial with the hinged parts of the front bogie and the rear bogie and the frame 1, and the lowest tread of the explosion-proof and stable wheels 8 is higher than the lowest tread of the driving wheel 7. In a normal running state, the driving wheel 7 runs on the track, so that the anti-explosion stable wheel 8 has a certain gap with the track and is not in direct contact with the track. When the driving wheel 7 is flat when the tire is burst and the tire is empty, the explosion-proof stabilizing wheel 8 can play a role in supporting the vehicle, so that the vehicle is prevented from heeling at a large angle, and the safety of the vehicle is ensured.

Further, still include on its frame 1: the anti-collision device comprises anti-collision beam devices arranged at the front end and the rear end of the frame 1 and elastic suspension devices arranged at the front end and the rear end of the frame 1. Thereby ensuring the safety and stability of the vehicle in the process of running.

Example 2

On the basis of embodiment 1, the driving wheel 7 is a pneumatic tire, the driving wheel 7 is provided with a central tire inflation system device including an electrically controlled valve, the electrically controlled valve comprises a valve, a pneumatic control unit and a tire pressure sensor installed in the pneumatic control unit, and the pneumatic control unit and the tire pressure sensor are in data communication connection with the electronic control unit.

The central tire inflation system is a system for improving the driving performance of an automobile on different road surfaces by controlling the air pressure in each tire, and is called CTIS for short. The central tire inflation system includes a pneumatic control unit, an Electronic Control Unit (ECU), a wheel valve, a tire pressure sensor installed in the pneumatic control unit, and the like. The electronic control unit instructs the pneumatic control unit to check the current pressure and to inflate or deflate the tyre according to the instructions of the electronic control unit. If the system determines that deflation of the tire is required, the system will apply a slight air pressure to the wheel valve to initiate deflation. When the pneumatic control unit finds that the proper air pressure has been reached, the valve will close.

For example, when the driving wheels 7 of the rear bogie 3 are deflated due to a burst, the burst-proof stable wheels 8 of the rear bogie 3 are in contact with the track, but the tire pressure of the driving wheels 7 of the front bogie 2 is still in a normal state. At this time, the gravity center of the vehicle is shifted toward the rear bogie 3, so that the gravity center of the vehicle is unstable, and the driving safety is affected.

The central tyre inflation system is matched with the run-flat wheel, so that the stability and the safety of the vehicle can be further ensured when the drive wheel 7 is flat due to tyre burst and air shrinkage.

As described above, when the driving wheels 7 of the rear bogie 3 are deflated due to a burst and the central tire inflation system detects that the air pressure of the driving wheels 7 is continuously decreased, the air valves of all the driving wheels 7 are controlled to release air, and the explosion-proof stabilizing wheels 8 of the front and rear bogies are all lowered to be in contact with the track. Thereby ensuring that the center of gravity of the vehicle does not shift.

After the vehicle enters the maintenance station for maintenance, all the driving wheels 7 can be inflated by the central tire inflation system until the tire pressure reaches a preset value.

The embodiment 3 discloses a rail holding type railway vehicle, which is provided with the rail holding type railway vehicle steering structure.

In embodiment 4, the invention discloses a PRT rail transit system, which includes the rail-embracing type rail vehicle of the invention.

It should be understood that the above examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should also be understood that various changes and modifications can be made by one skilled in the art after reading the disclosure of the present invention, and equivalents fall within the scope of the invention as defined by the appended claims.

Claims

1. A rail holding type rail vehicle steering structure comprises a frame (1), a front steering frame (2) and a rear steering frame (3), wherein the frame (1) provides connection for the whole steering structure and a chassis, the front steering frame and the rear steering frame provide support for a steering mechanism, the inner sides of the left and right edges of the bottom end of the front steering frame and the inner sides of the left and right edges of the bottom end of the rear steering frame are respectively provided with 3 guide wheels (4), and the guide wheels (4) are fixed with the front steering frame and the rear steering frame through elastic tensioning devices;

the top end of the front bogie (2) is coaxially hinged with a middle beam of the frame (1) through a vertical shaft (5) mechanism, and the top end of the rear bogie (3) is coaxially hinged with the middle beam of the frame (1) through a transverse shaft (6) mechanism;

the hinged parts of the top ends of the front and rear bogies and the middle beam of the frame (1) are respectively provided with a driving wheel (7);

at least two explosion-proof stabilizing wheels (8) are arranged on the bottom surface of the middle beam, the at least two explosion-proof stabilizing wheels (8) are symmetrically arranged by the central point of the middle beam, and the lowest tread of the explosion-proof stabilizing wheels (8) is higher than the lowest tread of the driving wheel (7);

the structure of 3 leading wheels (4) is that the both ends department of one of them limit of preceding, back bogie bottom sets up 2 horizontal leading wheels (4), its characterized in that, the middle department of one of them limit of preceding, back bogie bottom sets up 1 vertical leading wheel (4), leading wheel (4) are fixed with preceding, back bogie by elastic tensioning device.

2. The rail holding type railway vehicle steering structure according to claim 1, wherein the explosion-proof stabilizer wheels (8) are respectively arranged at the bottoms of the middle beam parts which are coaxial with the hinged parts of the front bogie and the rear bogie and the vehicle frame (1).

3. The structure of any one of claims 1-2, further comprising: the front end and the rear end of the frame (1) are provided with anti-collision beam devices, and the front end and the rear end of the frame (1) are provided with suspension devices.

4. The structure according to any one of claims 1-2, wherein the driving wheel (7) is a pneumatic tire, the driving wheel (7) is provided with an electrically controlled valve, the electrically controlled valve comprises a valve, a pneumatic control unit and a tire pressure sensor installed in the pneumatic control unit, and the pneumatic control unit and the tire pressure sensor are in data communication connection with the electronic control unit.

5. A track-embracing rail vehicle steering structure according to any one of claims 1-2, wherein the wheels of the explosion-proof stabilizer wheels (8) are solid tires made of rubber.

6. A track-embracing rail vehicle steering structure according to any one of claims 1-2, wherein the driving wheels (7) are two-wheeled and assembled.

7. A track-embracing railway vehicle steering arrangement according to any one of claims 1-2, wherein the driving wheels (7) are provided with a central tyre inflation device comprising an electrically controlled valve.

8. A rail holding type railway vehicle, characterized in that the vehicle is provided with a rail holding type railway vehicle steering structure as claimed in any one of claims 1 to 7.