CN112249044B

CN112249044B - Skeleton-free cab of railway vehicle

Info

Publication number: CN112249044B
Application number: CN202011088788.8A
Authority: CN
Inventors: 李明; 邓锐; 肖飞; 高永海; 欧士玺; 李帅; 刘英博
Original assignee: CRRC Nanjing Puzhen Co Ltd
Current assignee: CRRC Nanjing Puzhen Co Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2023-05-16
Anticipated expiration: 2040-10-13
Also published as: CN112249044A

Abstract

The invention relates to a frameless cab of a railway vehicle, which is formed by welding a honeycomb skin, a rear end connecting beam, a cab door frame, an observation window frame, a front illumination lamp frame, an emergency escape door frame and a front window frame, wherein the components are connected through profile welding, a vehicle body underframe extends to the front end of the frameless cab, and the frameless cab is located above the vehicle body underframe and is connected through continuous welding seams. The invention adopts a framework-free cab structure, the cab skin is entirely composed of welded aluminum honeycombs and honeycomb connecting beams, the welded aluminum honeycomb plates are formed by compression molding, and the cab skin is welded with other parts. The sound insulation device has the characteristics of simple structure, small welding workload, short production period, excellent sound insulation performance, low cost and the like. In the airtight vehicle body structure adopting the frameless cab, the cab underframe extends to the front end of the cab, the cab is located above the underframe, and the welding seams among the cab, the vehicle body underframe, the roof and the side walls are continuous welding seams, so that the air tightness of the vehicle body is ensured.

Description

Skeleton-free cab of railway vehicle

Technical Field

The invention relates to a body structure of a railway vehicle, in particular to a frameless cab of the railway vehicle.

Background

In the 90 th century of the 20 th century, demands for urban rail transit products are becoming urgent as the progress of urban China is accelerated, and cabins of vehicles introduced from abroad mostly adopt a scheme of welding frameworks and glass fiber reinforced plastics. With the improvement of urban rail transit operation speed, the requirement on vehicle air tightness is higher and higher, and the scheme of welding a framework and adding a glass fiber reinforced plastic mask can not meet the requirement on vehicle air tightness.

In the beginning of the 21 st century, high-speed motor train units began to be introduced into China, and in order to solve the problem of air tightness, the high-speed motor train units adopt the scheme of aluminum alloy plate beam splice welding or plate beam torsion beam. But the structure is complex, the design difficulty is high, the welding workload is high, and the cost is high.

In 2019, the Qingdao square rolling stock limited company of China invented a cab structure which adopts aluminum plates and aluminum honeycomb splice welding, the cab adopts a modularized design scheme, roof and side wall parts adopt aluminum honeycomb plates, and front ends and underframe parts still adopt aluminum plate splice welding structures. The structure is still relatively complex and the sound insulation performance is limited.

Disclosure of Invention

The invention aims to provide a frameless cab of a railway vehicle mainly aiming at the problems in the prior art.

In order to solve the technical problems, the invention provides a frameless cab for a railway vehicle, which is characterized in that: the automobile body chassis extends to the front end of the frameless cab, and the frameless cab is located above the automobile body chassis and is connected through continuous welding seams.

Furthermore, the invention also relates to a rail vehicle, which is characterized in that: the frameless cab of the railway vehicle is provided.

The invention adopts a framework-free cab structure, which mainly comprises a cab skin, a rear end connecting beam, an emergency evacuation door frame, a cab door frame, a front window frame, an observation window frame and a headlamp frame. The cab skin is composed of welded aluminum honeycombs and honeycomb connecting beams, the welded aluminum honeycombs are formed by compression molding, and the cab skin is welded with other parts. The sound insulation device has the characteristics of simple structure, small welding workload, short production period, excellent sound insulation performance, low cost and the like.

In the airtight vehicle body structure adopting the frameless cab, the cab underframe extends to the front end of the cab, the cab is located above the underframe, and the welding seams among the cab, the vehicle body underframe, the roof and the side walls are continuous welding seams, so that the air tightness of the vehicle body is ensured.

Drawings

FIG. 1 is a schematic view of a vehicle body employing the frameless cab structure of the present invention.

FIG. 2 is a schematic view of the structure of the frameless cab of the present invention.

FIG. 3 is a schematic illustration of the welded honeycomb skin of the present invention connected to a back end connection beam.

FIG. 4 is a schematic illustration of the welded honeycomb skin to cab door frame connection of the present invention.

Fig. 5 is a schematic illustration of the welded honeycomb skin of the present invention attached to an observation window frame or a headlamp frame.

Fig. 6 is a schematic view of the welded honeycomb skin to emergency escape door frame connection of the present invention.

FIG. 7 is a schematic illustration of the welded honeycomb skin to skin connection beam connection of the present invention.

The reference numerals in the figures are shown below:

1-a frameless cab structure; 1 a-welding a honeycomb skin; 1a 1-aluminum honeycomb panel and 1a 2-skin connecting beam; 1 b-a rear end connection beam; 1 c-cab door frame; 1 d-observing the window frame; 1 e-front lighting lamp frame; 1 f-emergency escape door frame; 1 g-front window frame; 2-a vehicle body chassis; 3 a-a side wall of the vehicle body; 3 b-two-position side walls of the vehicle body; 4-vehicle body roof.

Detailed Description

Embodiments of the present invention will be explained below with reference to the drawings.

As shown in fig. 1, the vehicle body structure adopting the frameless cab mainly comprises a frameless cab 1, a vehicle body underframe 2, a vehicle body one-position side wall 3a, a vehicle body two-position side wall 3b, a vehicle body roof 4 and the like. The chassis 2 extends to the front end of the frameless cab 1, and the frameless cab 1 is located above the chassis 2 and is connected by continuous welding seams. The rear connecting beam 1b in the frameless cab 1 is connected with the vehicle body roof 4 through continuous welding seams, and the cab door frame 1c in the frameless cab 1 is connected with the vehicle body one-position side wall 3a and the vehicle body two-position side wall 3b through continuous welding seams. The continuous welding seams among the frameless cab 1, the vehicle underframe 2, the vehicle one-position side wall 3a, the vehicle two-position side wall 3b and the vehicle roof 4 ensure the air tightness of the vehicle.

As shown in fig. 2, the frameless cab 1 mainly comprises a welded honeycomb skin 1a, a rear end connecting beam 1b, a cab door frame 1c, an observation window frame 1d, a front illumination lamp frame 1e, an emergency escape door frame 1f and a front window frame 1g, which are connected by welding. The welding honeycomb skin 1a is divided into different modules according to cab modeling, and the modules of the welding honeycomb skin 1a are connected through welding with the sectional materials. Specifically, the welded honeycomb skin 1a is connected with the rear-end connecting beam 1b, the cab door frame 1c, the observation window frame 1d, the front-light lamp frame 1e, the emergency escape door frame 1f, and the front window frame 1g by continuous welds. The continuous weld between the components ensures the air tightness of the vehicle body.

As shown in fig. 3 to 6, the rear end connecting beam 1b, the cab door frame 1C, the emergency escape door frame 1f and the front window frame 1g are formed by stretch bending of profiles and are provided with lap joint grooves, and form a lap joint structure with the welded honeycomb skin 1a, and are connected by continuous welding seams. The observation window frame 1d and the headlamp frame 1e are formed by machining a thick aluminum plate and provided with lap joint grooves, and form lap joint structures with the welded honeycomb skin 1a, and are connected through continuous welding seams.

As shown in fig. 7, the welded honeycomb skin is welded by an aluminum honeycomb panel 1a1 and a skin connecting beam 1a2, which are molded by compression molding.

In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.

Claims

1. The utility model provides a rail vehicle does not have skeleton cab which characterized in that: the automobile body chassis (2) extends to the front end of the frameless cab (1), and the frameless cab (1) is located above the automobile body chassis (2) and is connected through continuous welding seams; the welded honeycomb skin (1 a) is formed by welding an aluminum honeycomb plate (1 a 1) and a skin connecting beam (1 a 2), and the aluminum honeycomb plate is formed by compression molding, and the honeycomb skin is welded with other parts.

2. The rail vehicle frameless cab of claim 1, wherein: the rear connecting beam (1 b) is connected with the vehicle roof (4) through a continuous welding seam, and the cab door frame (1 c) is connected with the vehicle one-position side wall (3 a) and the vehicle two-position side wall (3 b) through continuous welding seams.

3. The rail vehicle frameless cab of claim 1, wherein: the rear end connecting beam (1 b), the cab door frame (1C), the emergency escape door frame (1 f) and the front window frame (1 g) are formed by stretch bending of profiles and are provided with lap joint grooves, and form a lap joint structure with the welded honeycomb skin (1 a) and are connected through continuous welding seams.

4. The rail vehicle frameless cab of claim 1, wherein: the observation window frame (1 d) and the front lighting lamp frame (1 e) are provided with lap joint grooves by adopting thick aluminum plate machining and forming lap joint structures with the welded honeycomb skin (1 a) and are connected through continuous welding seams.

5. A rail vehicle, characterized in that: comprising the frameless cab (1) according to claim 1, as well as a vehicle body underframe (2), a vehicle body one-position side wall (3 a), a vehicle body two-position side wall (3 b) and a vehicle body roof (4).

6. The rail vehicle frameless cab of claim 1, wherein: the frameless cab (1) is welded with the chassis (2), the one-position side wall (3 a), the two-position side wall (3 b) and the roof (4) of the vehicle body through continuous welding seams.