A 200 km / h low-floor motor train unit non-powered bogie

Abstract

The utility model discloses a kind of 200 kilometers per hour low-floor motor train unit non-power bogies, belong to rail transit vehicle bogie technical field, the utility model includes framework, wheelset axle box positioning device, secondary suspension device, central traction device, basic braking device, axle end device, wherein, central traction device is connected with car body by contact pillow beam, and Z type traction pull rod is formed by being used;Framework is H type welded structure box body framework, round brake beam is welded on the top of the both sides of crossbeam of framework, for connecting basic braking device, the longitudinal beam of framework is welded with magnetic rail brake seat at the both ends of brake beam, for hoisting magnetic rail brake unit, the connecting mode connection of the utility model bogie framework through contact pillow beam and car body, meet train low-floor requirement simultaneously, and vehicle limit satisfies TSI standard, basic braking device is provided with a set of magnetic rail brake unit, magnetic rail brake seat is welded on the side of framework side beam, magnetic rail brake system installation is realized.

Description

Technical Field

[0001] This utility model relates to the field of rail transit vehicle bogie technology, and in particular to a non-powered bogie for a low-floor EMU with a speed of 200 km / h. Background Technology

[0002] For rail vehicles to enter the EU market, they must pass the EU Rail Interoperability Technical Specification (TSI) certification. Obtaining EU recognition is essentially obtaining a passport for rail products to enter the EU market, which is highly beneficial for markets outside the EU. To meet TSI certification requirements, product design, manufacturing, testing, and verification must fully comply with European technical standards systems such as TSI, EN, UIC, IEC, and ISO.

[0003] Currently, the design, manufacturing, and testing of various types of high-speed trains operating in China are based on GB and TB standards, which do not meet TSI certification and therefore cannot be imported into the European Union.

[0004] Therefore, it is necessary to develop a non-powered bogie for a 200 km / h low-floor EMU that fully complies with European technical standards such as TSI, EN, UIC, IEC, and ISO, and meets European standard clearances and platform height requirements. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the existing technology and provide a non-powered bogie for a 200 km / h low-floor EMU, which meets the European standard clearance and platform height requirements for low-floor car bogies and obtains TSI certification.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a non-powered bogie for a low-floor EMU with a speed of 200 km / h, comprising: a frame mounted on two wheel axle box positioning devices, a secondary suspension device disposed on the upper part of the frame, and a central traction device mounted on the secondary suspension device; further comprising:

[0008] The basic braking device installed under the frame, and the axle end device at the end of the axle where the wheel set axle box positioning device is installed;

[0009] The central traction device is connected to the car body via a connecting bolster beam and is composed of Z-shaped traction rods.

[0010] The frame is an H-shaped welded box frame. Circular brake beams are welded above the crossbeams on both sides of the frame to connect the foundation braking device. Magnetic rail brake seats are welded to both ends of the brake beams on the longitudinal beams of the frame for hoisting the magnetic rail brake unit.

[0011] Furthermore, the brake beam, magnetic rail brake seat, secondary vertical stop, torsion bar seat, and swing arm positioning seat on the frame are all made of integral forgings.

[0012] Furthermore, the wheelset axle box positioning device adopts a swing arm structure.

[0013] Furthermore, the axle of the wheelset axle box positioning device is a hollow axle, the wheel is a curved web plate structure, and the bearing is an integral self-sealing roller bearing.

[0014] Furthermore, the anti-roll torsion bar of the secondary suspension system adopts an integral torsion bar structure, and the torsion bar of the anti-roll torsion bar is connected to the frame through an adjustable link.

[0015] Furthermore, the connecting pillow beams are all made of cast aluminum and serve as air chambers for the air springs.

[0016] Furthermore, the basic braking device adopts a two-axle disc braking method with four-point suspension installation. The braking unit can have a parking function and is equipped with a manual release brake line, and is also equipped with a magnetic rail braking unit.

[0017] In the above technical solution, the non-powered bogie for a low-floor EMU with a speed of 200 km / h provided by this utility model has the following advantages:

[0018] The bogie frame is connected to the car body via a connecting bolster beam, which simultaneously meets the requirements for a low floor and the vehicle clearance meets the TSI standard. The basic braking device is equipped with a magnetic rail braking unit, and magnetic rail braking seats are welded to the side of the frame side beam, realizing the installation of the magnetic rail braking system. Under track conditions that meet the TSI standard, the dynamic performance is performed in accordance with the EN14363 standard. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the non-powered bogie disclosed in this utility model;

[0021] Figure 2 This is a schematic diagram of the non-powered steering frame structure disclosed in this utility model;

[0022] Figure 3 This is a schematic diagram of the non-powered bogie wheelset axle box positioning device disclosed in this utility model;

[0023] Figure 4This is a schematic diagram of the structure of the secondary suspension device for the non-powered bogie disclosed in this utility model;

[0024] Figure 5 This is a schematic diagram of the non-powered bogie traction device disclosed in this utility model;

[0025] Figure 6 This is a schematic diagram of the non-powered bogie basic braking device disclosed in this utility model. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] See Figure 1 As shown;

[0028] A non-powered bogie for a low-floor EMU with a speed of 200 km / h includes a frame 1, a wheelset axle box positioning device 2, a secondary suspension device 3, a central traction device 4, a basic braking device 5, and an axle end device 6.

[0029] The bogie is connected to the car body via the connecting bolster beam 4-1. The frame 1 adopts an H-type welded box structure. The wheel set axle box positioning device 2 is a swing arm type axle box positioning. The primary suspension device 2-5 adopts a parallel connection of double-circle spiral steel springs and vertical dampers. The secondary suspension device 3 adopts a high-flexibility air spring 3-1, a secondary vertical damper 3-7, a lateral damper 3-4, a lateral buffer 3-3, and a single-sided anti-hunting damper 3-6. The central traction device 4 adopts a Z-type traction rod 4-3. The basic braking device 5 adopts a two-axle disc braking method and a set of magnetic rail braking unit 5-2.

[0030] See Figure 2 As shown:

[0031] All of the frame 1 are H-type welded frames, which are mainly composed of side beams 1-1, side beams 1-2, cross beams 1-3 and various hangers. Both the horizontal and side beams adopt a steel plate welded box structure. The horizontal and side beams are welded together by variable cross-section connecting seats. The upper part of the horizontal beam 1-3 of the frame 1 is provided with the secondary vertical stop 1-6. The torsion bar seat 1-7 is provided on the outside of the longitudinal beams 1-1 and 1-2. The lower part of the ends of the longitudinal beams 1-1 and 1-2 is provided with the swing arm positioning seat 1-8. The frame 1 is welded with a circular brake beam 1-4 on both sides above the horizontal beam 1-3. The foundation brake device 5 is connected through the brake beam 1-4. The longitudinal beams 1-1 and 1-2 of the frame 1 are welded with magnetic rail brake seats 1-5 at both ends of the brake beam 1-4. The magnetic rail brake unit 5-2 is hoisted through the magnetic rail brake seat 1-5. The brake beam 1-4, magnetic rail brake seat 1-8, secondary vertical stop 1-6, torsion bar seat 1-7, and swing arm positioning seat 1-8 are all made of integral forging structure. By embedding the integral forging into the frame, the overall welding strength of the frame is improved.

[0032] See Figure 3 As shown:

[0033] The wheelset axle box positioning device 2 adopts a swing arm structure, including a wheel 2-1, an axle 2-2, an axle-mounted brake disc 2-3, an axle box swing arm device 2-4, a primary suspension device 2-5, and a primary vertical shock absorber 2-6. The axle box device 2-4 integrates a primary suspension device mounting seat, and the primary rubber pad and steel spring assembly are mounted on the primary suspension device mounting seat.

[0034] Axle 2-2 is a hollow axle, and wheel 2-1 has a curved web structure. The bearings are integral self-sealing roller bearings. The primary suspension system 2-5 consists of a helical steel spring assembly, rubber laminated springs, primary vertical stops, and a vertical hydraulic damper. The helical steel spring assembly consists of an inner and outer coil spring with opposite rotation directions. The helical steel spring assembly is used to buffer wheel-rail impact vibration. The lower part of the helical steel spring assembly is equipped with rubber laminated springs, which mainly absorb relative motion and bending motion in the vertical and horizontal directions, and also absorb and mitigate high-frequency vibrations and provide insulation between frame 1 and axle box. The helical steel spring assembly contains stops, which can prevent the springs from being crushed and also provide support in emergency situations. A primary hydraulic damper is installed between the front end of the axle box and frame 1 to absorb the impact vibration energy between the wheel and rail. The damper contains a lifting stop to realize the overall lifting function of the wheelset and bogie.

[0035] See Figure 4 As shown:

[0036] The secondary suspension device 3 includes an air spring 3-1, an anti-roll torsion bar assembly 3-2, a lateral buffer 3-3, a lateral damper 3-4, an air spring control device 3-5, an anti-hunting damper 3-6, and a secondary vertical damper 3-7. These parts work together to complete the secondary suspension function of the bogie. The anti-roll torsion bar assembly 3-2 adopts an integral torsion bar structure, and the torsion bar is connected to the frame 1 through an adjustable link.

[0037] See Figure 5 As shown:

[0038] Each bogie is equipped with a central traction device 4, which adopts a "Z" type tie rod structure. The central traction device 4 includes a connecting bolster beam 4-1, a center pin 4-2, a traction tie rod assembly 4-3, and a traction beam 4-4.

[0039] The connecting bolster beam 4-1 is a transitional connecting element between the bogie and the car body. It can transmit various forces and torques between the car body and the bogie. It can also be used as an additional air chamber for the air spring system. The connecting bolster beam 4-1 consists of the connecting bolster beam body, anti-hunting damper seat, anti-roll torsion bar seat, positioning pin, grounding seat, etc. The connecting bolster beam body and the anti-hunting damper seat are made of cast aluminum.

[0040] The upper end of the center pin 4-2 is bolted to the connecting bolster beam 4-1, and the lower end is embedded in the traction beam. The traction beam and the bogie are connected by two traction rods arranged in a "Z" shape. A center pin sleeve is fixed inside the traction beam. The center pin 4-2 sleeve is a rubber-metal part. This structure eliminates the gap between the center pin, the center pin sleeve, and the traction beam, achieving gapless traction. The deformation of the rubber layer in the center pin sleeve can also accommodate the relative rotation between the car body and the bogie, thereby eliminating wear. The fit between the center pin, the traction beam, and the center pin sleeve is a metal-part fit, eliminating the influence of rubber creep and ensuring stable performance.

[0041] See Figure 6 As shown:

[0042] The basic braking device 5 adopts a two-axle disc braking method, the brake caliper 5-1 adopts a four-point suspension installation, the braking unit can have a parking function, and a magnetic rail braking unit 5-2 is also provided. The bogie with parking braking function is equipped with a manual release brake line 5-3.

[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A non-powered bogie of a 200 km / h low-floor motor train unit, characterized in that, include: The frame (1) is mounted on two wheelset axle box positioning devices (2), the secondary suspension device (3) is installed on the upper part of the frame (1), and the central traction device (4) is installed on the secondary suspension device (3); it also includes The basic braking device (5) is installed under the frame (1), and the axle end device (6) is installed at the end of the axle where the wheel set axle box positioning device (2) is installed. Among them, the central traction device (4) is connected to the car body through the connecting bolster beam (4-1) and is composed of Z-type traction rods (4-3). The frame (1) is an H-shaped welded box frame. Circular brake beams (1-4) are welded on both sides of the frame (1-3) to connect the basic brake device (5). Magnetic rail brake seats (1-5) are welded on both ends of the longitudinal beams (1-1, 1-2) of the frame (1) to the brake beams (1-4) for hoisting the magnetic rail brake unit (5-2).

2. The non-powered bogie for a 200 km / h low-floor EMU according to claim 1, characterized in that: The brake beam (1-4), magnetic rail brake seat (1-5), secondary vertical stop (1-6), torsion bar seat (1-7), and swing arm positioning seat (1-8) on the frame (1) are all integral forging structures.

3. The non-powered bogie for a 200 km / h low-floor EMU according to claim 1, characterized in that: The wheelset axle box positioning device (2) adopts a rotating arm structure.

4. A non-powered bogie for a 200 km / h low-floor EMU according to claim 1 or 3, characterized in that: The axle (2-2) of the wheelset axle box positioning device (2) is a hollow axle, the wheel (2-1) is a curved web plate structure, and the bearing is an integral self-sealing roller bearing.

5. The non-powered bogie for a 200 km / h low-floor EMU according to claim 1, characterized in that: The anti-roll torsion bar component (3-2) of the secondary suspension device (3) adopts an integral torsion bar structure. The torsion bar of the anti-roll torsion bar component (3-2) is connected to the frame (1) through an adjustable link.

6. The non-powered bogie for a 200 km / h low-floor EMU according to claim 1, characterized in that: The connecting pillow beam (4-1) is made of cast aluminum, and the connecting pillow beam (4-1) serves as an additional air chamber for the air spring.

7. A non-powered bogie for a 200 km / h low-floor EMU according to claim 1, characterized in that: The basic braking device (5) adopts a two-axis disc braking method and is installed with four-point suspension. The braking unit can have a parking function and is equipped with a manual release brake line (5-3). At the same time, a magnetic rail braking unit (5-2) is also provided.

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