CN109178022B - A distributed drive new wheel-rail high-speed train system - Google Patents

Abstract

The invention relates to a distributed drive new wheel-rail high-speed train system in the field of rail transit technology, which includes a plurality of bogie bodies and a pair of track assemblies. Each track assembly includes a load-bearing track and a guide track; each bogie body They all include carriage connecting frames, load-bearing frames, load-bearing wheels, guide wheels, transverse telescopic linkages, spring damping components, shock-absorbing components, and motor mounting brackets; each bogie body has two load-bearing wheels, each on two Rolling on the load-bearing track; each bogie body has two sets of guide wheels that roll on the two guide tracks respectively; each load-bearing wheel is equipped with a power unit, which includes a load-bearing wheel drive motor and a load-bearing wheel drive motor. It is installed on the motor mounting frame, and the output spindle of the load-bearing wheel drive motor is drivingly connected to the wheel shaft of the load-bearing wheel. Each load-bearing wheel is equipped with an independent power source.

Description

A distributed drive new wheel-rail high-speed train system

Technical field

The present invention relates to the technical field of rail transportation, specifically, to a new wheel-rail high-speed train system.

Background technique

Wheel-rail trains and maglev trains are the two main technical forms of rail transportation. Among them, the wheel-rail train adopts the mode of wheels meshing on the track, and the wheels and the track are in direct contact. It is widely used in some special occasions such as railways, urban transportation, and mines. It is a commonly used method for rail transportation. It has mature technology and safety. It has the advantages of reliability, strong transportation capacity, punctuality, speed, and high comfort.

The limitations of traditional wheel-rail trains are mainly reflected in two points: (1) The load-bearing and guiding functions of the system composed of wheels and rails (referred to as the wheel-rail system) are coupled. When the speed reaches more than 400km/h, the dynamic performance of the wheel-rail contact drops sharply. At the same time, maintaining high speeds imposes strict requirements on the wheel-rail system, resulting in a significant decrease in safety and reliability, and a corresponding significant decrease in economic performance. The traditional wheel-rail system limits the increase in the maximum speed of the train; (2) It relies on wheel-rail rolling friction to operate, which is the so-called sticking operation. The degree of friction utilization not only determines but also limits the traction capacity of the system. In order to achieve higher speeds, it is required to use as much of the weight of the train as possible to generate friction. Ultimately, the entire weight of the train is used to generate friction, and all axles are moving axles. This is the basic principle of the current EMU. The limitation of traction hinders the improvement of train acceleration performance and maximum speed.

Contents of the invention

The purpose of the present invention is to provide a distributed drive new wheel-rail high-speed train system to get rid of the limitation of traction force generated by gravity.

The object of the present invention is achieved as follows: a distributed drive new wheel-rail high-speed train system, including a plurality of bogie bodies and a pair of track assemblies rollingly matched with the bogie bodies. Each track assembly includes a load-bearing track. , guide rail, the working surface of the load-bearing rail is set horizontally, and the working surface of the guide rail is set vertically;

Each bogie body includes a carriage connecting frame, a load-bearing frame, a load-bearing wheel, a guide wheel, a transverse telescopic linkage, a spring damping component, a shock-absorbing component, and a motor mounting frame installed on the carriage connecting frame, wherein the carriage The connecting frame is installed on the bottom side of the carriage in a horizontally rotating manner, and the shock-absorbing component is arranged between the carriage connecting frame and the load-bearing frame and is connected to both at the same time;

Each bogie body is provided with two load-bearing wheels. The two load-bearing wheels are respectively installed at the left and right ends of the load-bearing frame and roll on two load-bearing tracks respectively;

The guide wheels of each bogie body are provided with two sets, each set has two guide wheels. The two sets of guide wheels are respectively provided at the left and right ends of the transverse telescopic link mechanism and roll on two guide rails respectively. The transverse telescopic link mechanism The rod mechanism can telescope in both left and right directions, and the telescopic direction is perpendicular to the center line of the carriage. The spring damping assembly is combined with the transverse telescopic linkage mechanism so that the transverse telescopic linkage mechanism is always in a state of stretching to the left and right sides;

Each load-bearing wheel is equipped with a power unit. The power unit includes a load-bearing wheel drive motor. The load-bearing wheel drive motor is installed on the motor mounting frame. The output spindle of the load-bearing wheel drive motor is drivingly connected to the wheel shaft of the load-bearing wheel.

Further, each guide wheel is configured with a drive unit, which includes a guide wheel drive motor installed on the motor mounting frame, and the output spindle of the guide wheel drive motor is drivingly connected to the axle of the guide wheel.

Furthermore, the above-mentioned driving unit matched with the guide wheel also includes a gear transmission mechanism. The gear transmission mechanism is installed on the transverse telescopic link mechanism. The guide wheel drive motor, the gear transmission mechanism, and the axle of the guide wheel are connected in sequence.

Further, the gear transmission mechanism includes a gear box, and also includes a driving bevel gear and a driven bevel gear located in the gear box. The driving bevel gear and the driven bevel gear mesh with each other. The driving bevel gear drives the guide wheel. The output shaft of the motor forms a transmission matching relationship, and the driven bevel gear is coaxially mounted on the axle of the guide wheel.

Furthermore, the power unit matched with each load-bearing wheel also includes a pair of load-bearing part universal joints and a load-bearing part linkage shaft. Both ends of the load-bearing part linkage shaft pass through the load-bearing part universal joints and the wheel axles of the load-bearing wheel respectively. , the output shaft of the load-bearing wheel drive motor forms a connection relationship.

Further, the above-mentioned driving unit matched with the guide wheel also includes a pair of guide universal joints and a guide linkage shaft. Both ends of the guide linkage shaft pass through the guide universal joints and the axle of the drive bevel gear respectively. , the output shaft of the guide wheel drive motor forms a connection relationship.

Further, the transverse telescopic linkage is a scissor-fork link structure, the central hinge point of the transverse telescopic linkage is on the rotation center axis of the carriage connecting frame, and the transverse telescopic linkage is slidingly connected to the load-bearing frame. and form a sliding pair.

The beneficial effects of the present invention are: each load-bearing wheel and guide wheel is equipped with an independent power source, so that the train traction force is freed from the limitation of traction force generated by gravity, and the system has strong dynamic performance; it is convenient to realize modular design, later installation and It is easy to maintain; it can realize the recovery of train braking energy, making the system more energy-saving; the braking force can also get rid of the limitation of the braking force generated by gravity, making the system safer.

Description of drawings

Figure 1 is a schematic diagram of the system layout of the present invention.

FIG. 2 is a cross-sectional view along line A-A in FIG. 1 .

FIG. 3 is an enlarged view of part B in FIG. 2 .

In the picture, 1 carriage connecting frame, 2 load-bearing frame, 3 load-bearing wheels, 4 load-bearing wheel drive motor, 5 guide wheels, 6 gear transmission mechanism, 601 gear box, 602 drive bevel gear, 603 driven bevel gear, 7 guide wheel drive Motor, 8 load-bearing part universal joint, 9 load-bearing part linkage shaft, 10 load-bearing rail, 11 guide rail, 12 shock-absorbing component, 13 transverse telescopic linkage mechanism, 14 spring damping component, 15 guide part universal joint, 16 guide part Linkage shaft.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1-3, a distributed drive new wheel-rail high-speed train system includes multiple bogie bodies and a pair of track assemblies that are rollingly matched with the bogie bodies.

Each track assembly includes a load-bearing rail 10 and a guide rail 11. The working surface of the load-bearing rail 10 is set horizontally, and the working surface of the guide rail 11 is set vertically.

Each bogie body includes a carriage connecting frame 1, a load-bearing frame 2, a load-bearing wheel 3, a guide wheel 5, a transverse telescopic linkage 13, a spring damping component 14, a shock absorbing component 12, and a motor installed on the carriage connecting frame 1 Mounting frame 17, in which the carriage connecting frame 1 is installed on the bottom side of the carriage in a horizontally rotating manner, and the shock absorbing assembly 12 is arranged between the carriage connecting frame 1 and the load-bearing frame 2 and is connected to both at the same time.

Each bogie main body is provided with two load-bearing wheels 3. The two load-bearing wheels 3 are respectively arranged at the left and right ends of the load-bearing frame 2 and roll on the two load-bearing rails 10 respectively.

Each bogie body is provided with two sets of guide wheels 5, each set has two guide wheels 5. The two sets of guide wheels 5 are respectively provided at the left and right ends of the transverse telescopic linkage 13 and roll on the two guide rails 11 respectively. The transverse telescopic linkage mechanism 13 can telescope in both left and right directions, and the telescopic direction is perpendicular to the center line of the vehicle compartment. The spring damping assembly 14 is combined with the transverse telescopic linkage mechanism 13 so that the transverse telescopic linkage mechanism 13 is always in a state of stretching to the left and right sides. .

The above-mentioned transverse telescopic linkage 13 is a scissor-fork link structure. The central hinge point of the transverse telescopic linkage 13 is on the rotation center axis of the carriage connecting frame 1. The transverse telescopic linkage 13 is slidingly connected with the load-bearing frame 2 to form a sliding Vice; the transverse telescopic linkage mechanism 13 can telescope in both directions left and right, and the telescopic direction is perpendicular to the center line of the car. The spring damping assembly 14 is combined with the transverse telescopic linkage mechanism 13 so that the transverse telescopic linkage mechanism 13 is always stretched to the left and right sides. state, so that the two sets of guide wheels 5 are in close contact with the working surfaces of the two guide rails 11 respectively.

Each load-bearing wheel 3 is equipped with a power unit. The power unit includes a load-bearing wheel drive motor 4. The load-bearing wheel drive motor 4 is installed on the motor mounting frame 17. The output main shaft of the load-bearing wheel drive motor 4 is drivingly connected to the wheel shaft of the load-bearing wheel 3. .

Each guide wheel 5 is equipped with a drive unit, which includes a guide wheel drive motor 7 installed on the motor mounting bracket 17 . The output spindle of the guide wheel drive motor 7 is drivingly connected to the wheel shaft of the guide wheel 5 .

When the train is running, the load-bearing wheel drive motor 4 drives the load-bearing wheel 3 to roll on the load-bearing track 10, and the guide wheel drive motor 7 drives the guide wheel 5 to roll on the guide track 11, forming a dual driving effect so that the train can move forward quickly.

The above-mentioned driving unit matched with the guide wheel 5 also includes a gear transmission mechanism 6. The gear transmission mechanism 6 is installed on the transverse telescopic linkage 13. The guide wheel drive motor 7, the gear transmission mechanism 6, and the axle of the guide wheel 5 are connected in sequence.

The above-mentioned gear transmission mechanism 6 includes a gear box 601, and also includes a driving bevel gear 602 and a driven bevel gear 603 located in the gear box 601. The driving bevel gear 602 and the driven bevel gear 603 mesh with each other, and the driving bevel gear 602 drives the guide wheel. The output shaft of the motor 7 forms a transmission matching relationship, and the driven bevel gear 603 is coaxially mounted on the axle of the guide wheel 5 . This enables the power of the guide wheel drive motor 7 to be smoothly transmitted to the guide wheel 5 .

The power unit matched with each load-bearing wheel 3 also includes a pair of load-bearing part universal joints 8 and a load-bearing part linkage shaft 9. Both ends of the load-bearing part linkage shaft 9 pass through the load-bearing part universal joints 8 and the load-bearing wheel 3 respectively. The wheel axle and the output shaft of the load-bearing wheel drive motor 4 form a connection relationship. The impact of vibration on the output shaft of the load-bearing wheel drive motor 4 can be overcome.

The above-mentioned driving unit matched with the guide wheel 5 also includes a pair of guide universal joints 15 and a guide linkage shaft 16. Both ends of the guide linkage shaft 16 pass through the guide universal joints 15 and the drive bevel gear 602 respectively. The wheel shaft and the output shaft of the guide wheel drive motor 7 form a connection relationship. The flexible characteristics of the guide universal joint 15 itself can be used to overcome the impact of vibration on the output shaft of the guide wheel drive motor 7. Considering that the actual telescopic amount of the transverse telescopic linkage 13 is small, that is, the shaft offset of the guide wheel 5 The amount is small and within the bearing range of the guide universal joint 15. Therefore, the expansion and contraction of the transverse telescopic linkage 13 will not be violent and will not affect the output shaft of the guide wheel drive motor 7.

The above are the preferred embodiments of the present invention. Those skilled in the art can also make various transformations or improvements on this basis. Without departing from the general concept of the present invention, these transformations or improvements should all belong to the protection claimed by the present invention. within the range.

Claims (1)

1. A distributed drive new wheel-rail high-speed train system, including a plurality of bogie bodies and a pair of track assemblies rollingly matched with the bogie bodies, characterized in that: each track assembly includes a load-bearing track (10) , guide track (11), the working surface of the load-bearing track (10) is set horizontally, and the working surface of the guide track (11) is set vertically; each bogie body includes a carriage connecting frame (1), a load-bearing frame (2), load-bearing wheel (3), guide wheel (5), transverse telescopic linkage (13), spring damping component (14), shock absorbing component (12), motor installed on the carriage connecting frame (1) Mounting frame (17), wherein the carriage connecting frame (1) is installed on the bottom side of the carriage in a horizontally rotating manner, and the shock absorbing assembly (12) is arranged between the carriage connecting frame (1) and the load-bearing frame (2). Connected to both at the same time; each bogie main body is provided with two load-bearing wheels (3), and the two load-bearing wheels (3) are respectively provided at the left and right ends of the load-bearing frame (2) and respectively on the two load-bearing rails (10) scroll; The guide wheels (5) of each bogie body are provided with two groups, and each group has two guide wheels (5). The two sets of guide wheels (5) are respectively arranged at the left and right ends of the transverse telescopic linkage mechanism (13) and are respectively located at Rolling on two guide rails (11), the transverse telescopic linkage mechanism (13) can telescope left and right in two directions and the telescopic direction is perpendicular to the center line of the carriage. The spring damping assembly (14) and the transverse telescopic linkage mechanism (13) ) are combined so that the transverse telescopic link mechanism (13) is always in a state of stretching to the left and right sides; Each load-bearing wheel (3) is equipped with a power unit. The power unit includes a load-bearing wheel drive motor (4). The load-bearing wheel drive motor (4) is installed on the motor mounting frame (17). The load-bearing wheel drive motor The output spindle of (4) is drivingly connected to the wheel shaft of the load-bearing wheel (3); Each guide wheel (5) is configured with a drive unit, which includes a guide wheel drive motor (7) installed on the motor mounting bracket (17). The output spindle of the guide wheel drive motor (7) is connected to the guide wheel. (5) Axle transmission connection; The above-mentioned driving unit matched with the guide wheel (5) also includes a gear transmission mechanism (6). The gear transmission mechanism (6) is installed on the transverse telescopic linkage mechanism (13). The guide wheel drive motor (7), The gear transmission mechanism (6) and the axles of the guide wheel (5) are connected in sequence; The gear transmission mechanism (6) includes a gear box (601), a driving bevel gear (602) and a driven bevel gear (603) located in the gear box (601). The driving bevel gear (602) and the driven bevel gear (603) are The moving bevel gears (603) mesh with each other, the driving bevel gear (602) forms a transmission matching relationship with the output shaft of the guide wheel drive motor (7), and the driven bevel gear (603) is coaxially mounted on the guide wheel (5 ) on the axle; The power unit matched with each load-bearing wheel (3) also includes a pair of load-bearing part universal joints (8) and a load-bearing part linkage shaft (9). Both ends of the load-bearing part linkage shaft (9) pass through the load-bearing part respectively. The universal joint (8) forms a connection relationship with the axle of the load-bearing wheel (3) and the output shaft of the load-bearing wheel drive motor (4); The above-mentioned driving unit matched with the guide wheel (5) also includes a pair of guide universal joints (15) and a guide linkage shaft (16). Both ends of the guide linkage shaft (16) pass through the guide portion respectively. The universal joint (15) forms a connection relationship with the wheel shaft of the driving bevel gear (602) and the output shaft of the guide wheel driving motor (7); The transverse telescopic linkage (13) is a scissor-fork link structure, and the central hinge point of the transverse telescopic linkage (13) is on the rotation center axis of the carriage connecting frame (1). The transverse telescopic linkage The mechanism (13) is slidingly connected with the load-bearing frame (2) to form a sliding pair.