阅读说明：本技术 一种轻量化的高速磁浮车辆走行部装置 (Lightweight high-speed magnetic levitation vehicle running gear device ) 是由 刘建新 郭峰 谢鸣 赵春发 朱瑞 于 2019-12-23 设计创作，主要内容包括：本发明公开了一种轻量化的高速磁浮车辆走行部装置,其包括主纵梁单元和悬浮框单元,所述悬浮框单元包括电磁铁托臂、横向止挡装置、空气弹簧和主横梁,所述电磁铁托臂安装在主横梁两端,所述横向止挡装置和空气弹簧安装在主横梁上；所述主纵梁单元包括Z字形牵引拉杆装置、增强解耦能力的主纵梁和主纵梁连接梁,主纵梁连接梁与主纵梁相连。本发明采用了工作行程能满足高速磁浮车辆线路适应性要求的大尺寸空气弹簧,取代了现有高速磁浮车辆走行部设计方案中由连接座、摇动台、吊杆、摇枕和小尺寸空气弹簧等零部件所构成的摇枕机构,形成了无摇枕的轻量化高速磁浮车辆走行部。故既减少了零部件的数量,便于装配和维护,又提高了二系悬挂装置的可靠性和经济性。(The invention discloses a light high-speed magnetic levitation vehicle running part device which comprises a main longitudinal beam unit and a suspension frame unit, wherein the suspension frame unit comprises an electromagnet support arm, a transverse stopping device, an air spring and a main cross beam, the electromagnet support arm is arranged at two ends of the main cross beam, and the transverse stopping device and the air spring are arranged on the main cross beam; the main longitudinal beam unit comprises a Z-shaped traction pull rod device, a main longitudinal beam for enhancing decoupling capacity and a main longitudinal beam connecting beam, and the main longitudinal beam connecting beam is connected with the main longitudinal beam. The invention adopts the large-size air spring with the working stroke capable of meeting the line adaptability requirement of the high-speed magnetic levitation vehicle, replaces a swing bolster mechanism which is formed by parts such as a connecting seat, a swing platform, a suspender, a swing bolster, a small-size air spring and the like in the design scheme of the traveling part of the high-speed magnetic levitation vehicle, and forms the lightweight high-speed magnetic levitation vehicle traveling part without the swing bolster. Therefore, the number of parts is reduced, the assembly and the maintenance are convenient, and the reliability and the economical efficiency of the secondary suspension device are improved.)

1. The utility model provides a high-speed maglev vehicle running gear device of lightweight which characterized in that: the suspension frame unit is connected with two ends of the main longitudinal beam unit to form a whole;

the suspension frame unit comprises an electromagnet support arm, a transverse stopping device, an air spring and a main cross beam, the electromagnet support arm is arranged at two ends of the main cross beam, and the transverse stopping device and the air spring are arranged on the main cross beam;

the main longitudinal beam unit comprises a Z-shaped traction pull rod device, a main longitudinal beam for enhancing decoupling capacity and a main longitudinal beam connecting beam, the main longitudinal beam connecting beam is connected with the main longitudinal beam, and the Z-shaped traction pull rod device is arranged on a mounting plate connected with the main longitudinal beam connecting beam;

the main longitudinal beam is connected with the suspension frame unit through the longitudinal beam connecting piece.

2. The running gear device of a lightweight high-speed magnetic levitation vehicle as recited in claim 1, wherein: the suspension frame unit further comprises a lower supporting arm connecting piece, an upper supporting arm connecting piece, an air spring mounting beam, a transverse stopping mounting beam and a transverse stopping mounting seat, a skid device is mounted on the lower surface of the air spring mounting beam through a high-strength bolt, an air spring is mounted on the upper surface of the air spring mounting beam through a high-strength bolt, the air spring is mounted on a vehicle body chassis through a high-strength bolt, supporting and vibration damping effects are achieved, certain relative displacement is allowed to be generated between a vehicle body and a walking part, and the requirements of stable running and curve passing of a high-speed magnetic levitation vehicle are met.

3. A lightweight high-speed magnetic levitation vehicle running gear according to claim 2, characterized in that: each suspension frame unit comprises two main cross beams, four electromagnet support arms and two air springs, the two electromagnet support arms are in a group and are respectively connected to two ends of the main cross beams, and each group of electromagnet support arms are connected with each other through a support arm lower connecting piece and a support arm upper connecting piece.

4. The running gear device of a lightweight high-speed magnetic levitation vehicle as recited in claim 1, wherein: the two main longitudinal beams are connected through the longitudinal beam connecting beam, the traction pull rod mounting plate and the rubber connecting piece, and the Z-shaped traction pull rod device is mounted on the mounting plate connected with the main longitudinal beam connecting beam.

5. The running gear device of a lightweight high-speed magnetic levitation vehicle as recited in claim 1, wherein: the transverse stopping device comprises a transverse stopping mounting beam, a transverse stopping mounting seat, a transverse stopping rubber element and a transverse traction device, wherein the transverse stopping rubber element is symmetrically mounted on the inner side of the transverse stopping mounting beam through the transverse stopping mounting seat, and a transverse stopping nylon element is mounted on the transverse traction device; through the arrangement of the stopping gap, the transverse stopping device can ensure that the transverse displacement between the vehicle body and the walking part does not exceed the maximum transverse working stroke of the air spring, and provides additional transverse force when the high-speed magnetic suspension vehicle passes through a difficult line with a small-radius curve.

6. The running gear device of a lightweight high-speed magnetic levitation vehicle as recited in claim 5, wherein: the transverse stopping device is arranged at the central axis position of the transverse stopping mounting beam in the suspension frame unit, the acting point of the transverse load is close to the mass center of the walking part, and the length of the force arm of the transverse load on the stopping is reduced.

7. A lightweight high-speed magnetic levitation vehicle running gear according to claim 2, characterized in that: all parts of the suspension frame unit are connected through high-strength bolts.

8. The running gear device of the lightweight high-speed magnetic levitation vehicle as recited in claim 4, wherein: the lateral stopper rubber element cooperates with a lateral stopper nylon element.

9. The running gear device of a lightweight high-speed magnetic levitation vehicle as recited in claim 1, wherein: the effective diameter of the air spring is larger than or equal to 465mm, the vertical effective working stroke is larger than or equal to 37.5mm, and the radial effective working stroke is larger than or equal to 80mm, so that the requirements of stability indexes and line adaptability of vehicles are met.

Technical Field

The invention relates to the technical field of high-speed magnetic levitation vehicles, in particular to a light-weight running part device of a high-speed magnetic levitation vehicle and a magnetic levitation vehicle with the running part.

Background

The running part is the most important bearing part of the high-speed magnetic suspension vehicle and plays an important role in supporting, guiding, drawing and buffering. On the premise of meeting the functions, the structure light design of the running part is realized as much as possible, the power action between the vehicle and the rail is reduced, and the high-speed magnetic levitation vehicle has important significance for prolonging the service life, riding comfort and energy utilization rate of the high-speed magnetic levitation vehicle.

The conventional high-speed maglev vehicle running part supports a vehicle body through 4 air springs and provides displacement between the vehicle body and the running part, but the air springs have small diameters (360mm) and limited working strokes, so that the required transverse and vertical relative displacement between the vehicle body and the running part when the high-speed maglev vehicle passes through a difficult line cannot be met. In addition, as the transverse stopping block is arranged at the end part of the swing bolster, the vertical distance between the transverse load action point and the mass center of the walking part is larger, the transverse load force is long in arm, and the walking part can generate larger side rolling moment when passing through a difficult curve road section, so that the curve passing performance of the high-speed magnetic suspension vehicle is influenced. In order to solve the problems, a complex secondary suspension device which comprises a connecting seat, a shaking table, a suspender, a swing bolster, a transverse stopper, a small-size air spring and other parts is designed between a vehicle body and a walking part of the conventional high-speed magnetic suspension vehicle to compensate the defect of the working stroke of the small-size air spring, and an anti-rolling rubber pile is arranged between two swing bolsters of the same suspension frame unit to resist the side rolling moment caused by transverse load.

Although the design scheme of the running part with the complex secondary suspension device ensures the line adaptability of the high-speed magnetic levitation vehicle, the design scheme has the following defects:

1. the running part has a heavy self weight, so that the problems of large power action between the vehicle and the rail and poor operation comfort and economy are caused, and the design requirement of light weight of the structure is not met.

2. The walking part mechanism is complex in design, so that the problems of high manufacturing cost and poor reliability are caused, and the principle of simplified design of the mechanism is not satisfied.

3. The running part has a plurality of parts, which causes the problems of poor function centralization and difficult assembly and disassembly, and does not meet the principle of easy use of maintenance and repair.

4. In actual operation, the suspension rod and the shaking table bear complex alternating load, fatigue failure is easy to cause, and potential safety hazards exist.

Disclosure of Invention

The invention provides a lightweight high-speed maglev vehicle running gear device which is a simple and reliable lightweight running gear design scheme of a secondary suspension device through long-term exploration and trial, multiple experiments and efforts, continuous innovation and innovation for overcoming the defects of the design scheme of the existing high-speed maglev vehicle running gear.

On the basis of ensuring that the high-speed magnetic levitation vehicle has good line adaptability, riding comfort and stability, the design scheme of the running part is simplified from two aspects of mechanism and structure, the reliability and maintainability of the running part are improved, the high-speed magnetic levitation vehicle is ensured to run better and more safely, the structural lightweight design of the running part is realized as far as possible, and the operation economy of the high-speed magnetic levitation vehicle is improved.

In order to achieve the purpose, the invention adopts the technical scheme that:

a lightweight high-speed magnetic levitation vehicle running gear device comprises a main longitudinal beam unit and a suspension frame unit, wherein the suspension frame unit is connected with two ends of the main longitudinal beam unit to form a whole;

the suspension frame unit comprises an electromagnet support arm, a transverse stopping device, an air spring and a main cross beam, the electromagnet support arm is arranged at two ends of the main cross beam, and the transverse stopping device and the air spring are arranged on the main cross beam;

the main longitudinal beam unit comprises a Z-shaped traction pull rod device, a main longitudinal beam for enhancing decoupling capacity and a main longitudinal beam connecting beam, the main longitudinal beam connecting beam is connected with the main longitudinal beam, and the Z-shaped traction pull rod device is arranged on the main longitudinal beam;

the main longitudinal beam is connected with the suspension frame unit through the longitudinal beam connecting piece.

According to the invention, the light high-speed magnetic suspension vehicle running gear device further preferably adopts the technical scheme that: the suspension frame unit further comprises a lower supporting arm connecting piece, an upper supporting arm connecting piece, an air spring mounting beam, a transverse stopping mounting beam and a transverse stopping mounting seat, a skid device is mounted on the lower surface of the air spring mounting beam through a high-strength bolt, an air spring is mounted on the upper surface of the air spring mounting beam through a high-strength bolt, the air spring is mounted on a vehicle body chassis through a high-strength bolt, supporting and vibration damping effects are achieved, certain relative displacement is allowed to be generated between a vehicle body and a walking part, and the requirements of stable running and curve passing of a high-speed magnetic levitation vehicle are met.

According to the invention, the light high-speed magnetic suspension vehicle running gear device further preferably adopts the technical scheme that: each suspension frame unit comprises two main cross beams, four electromagnet support arms and two air springs, the two electromagnet support arms are in a group and are respectively connected to two ends of the main cross beams, and each group of electromagnet support arms are connected with each other through a support arm lower connecting piece and a support arm upper connecting piece.

According to the invention, the light high-speed magnetic suspension vehicle running gear device further preferably adopts the technical scheme that: the two main longitudinal beams are connected through the longitudinal beam connecting beam and the rubber connecting piece, and the Z-shaped traction pull rod device is installed on the installation plate connected with the main longitudinal beam connecting beam.

According to the invention, the light high-speed magnetic suspension vehicle running gear device further preferably adopts the technical scheme that: the transverse stopping device comprises a transverse stopping mounting beam, a transverse stopping mounting seat, a transverse stopping rubber element and a transverse traction device, the transverse stopping rubber element is symmetrically mounted on the inner side of the transverse stopping mounting beam through the transverse stopping mounting seat, the transverse stopping nylon element is mounted on the transverse traction device, and through the arrangement of a stopping gap, the transverse stopping device can ensure that the transverse displacement between the vehicle body and the traveling part does not exceed the maximum transverse working stroke of the air spring and provides extra transverse force when the high-speed maglev vehicle passes through a difficult line with a small radius curve.

According to the invention, the light high-speed magnetic suspension vehicle running gear device further preferably adopts the technical scheme that: the transverse stopping device is arranged at the central axis position of the transverse stopping mounting beam in the suspension frame unit, the acting point of the transverse load is close to the mass center of the walking part, and the length of the force arm of the transverse load on the stopping is reduced.

According to the invention, the light high-speed magnetic suspension vehicle running gear device further preferably adopts the technical scheme that: all parts of the suspension frame unit are connected through high-strength bolts.

According to the invention, the light high-speed magnetic suspension vehicle running gear device further preferably adopts the technical scheme that: the lateral stopper rubber element cooperates with a lateral stopper nylon element.

According to the invention, the light high-speed magnetic suspension vehicle running gear device further preferably adopts the technical scheme that: the effective diameter of the air spring is larger than or equal to 465mm, the vertical effective working stroke is larger than or equal to 37.5mm, and the radial effective working stroke is larger than or equal to 80mm, so that the requirements of stability indexes and line adaptability of vehicles are met.

Existing air springs are typically within 360mm in diameter (referred to herein as small size air springs); when the standard height of the air spring is 250mm, the effective diameter is not less than 465mm, the vertical effective working stroke is not less than 37.5mm, the radial effective working stroke is not less than 80mm, and the air spring meeting the requirements of stability indexes and line adaptability of vehicles is called as a large-size air spring.

The invention has the beneficial effects that:

1. the invention adopts the large-size air spring with the working stroke capable of meeting the line adaptability requirement of the high-speed magnetic suspension vehicle to replace a swing bolster mechanism consisting of parts such as a connecting seat, a swing platform, a suspender, a swing bolster, a small-size air spring and the like in the design scheme of the traditional running part, thereby forming the running part of the high-speed magnetic suspension vehicle without the swing bolster. Therefore, the design scheme of the running part is simplified from two aspects of mechanism and structure, the number of parts is reduced, the assembly and maintenance are convenient, and the reliability and the economical efficiency of the secondary suspension device are improved.

2. Different from the design scheme of the conventional running part, the transverse stopping device is arranged at the central axis position of the small longitudinal beam of the suspension frame unit, so that the acting point of a transverse load is closer to the centroid of the running part, the arm length of the transverse load on the stopping device is reduced, and the side rolling moment of the running part when passing through a difficult curve road section is effectively reduced, so that the side rolling resistant rubber pile in the conventional design scheme is not needed, the secondary suspension device of the running part is further simplified, and the running stability of the magnetic suspension vehicle can be improved.

3. The invention inherits the design mode of a semi-suspension frame of the running part of the existing high-speed magnetic suspension vehicle, and the front and the rear suspension frame units are connected through the main longitudinal beam arranged in the middle, but the invention reduces the torsional rigidity of the main longitudinal beam through the main longitudinal beam with enhanced decoupling capacity, enhances the motion decoupling capacity of the front and the rear suspension frame units, and leads the high-speed magnetic suspension vehicle to have better shock resistance and line adaptability.

4. Compared with the running gear of the existing high-speed maglev vehicle, the lightweight running gear device provided by the invention can reduce the dead weight by 10%.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is a schematic top view of the present invention.

Figure 4 is a schematic view of an air spring mounting arrangement.

Fig. 5 is a schematic view of a lateral stop arrangement.

Fig. 6 is a schematic structural view of a main longitudinal beam unit.

In the figure: 100 suspension frame units, 1 electromagnet supporting arm, 2 supporting arm lower connecting pieces, 3 supporting arm upper connecting pieces, 4 air spring mounting beams, 5 main cross beams, 200 main longitudinal beam units, 300 transverse stopping devices, 6 transverse stopping mounting beams, 7 transverse stopping mounting seats, 8 skid devices, 9 air springs, 10 transverse traction devices, 11Z-shaped traction pull rod devices, 12 main longitudinal beams, 13 main longitudinal beam connecting beams, 14 skid mounting seats, 15 transverse stopping rubber elements, 16 transverse stopping nylon elements, 17 longitudinal beam connecting pieces and 18 rubber connecting pieces.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.