CN104057969B - A kind of 100% modern city tramcar floats car vehicle body bottom frame - Google Patents

Abstract

The invention discloses a 100% modern urban tram floating car body chassis, which includes a lower hinge assembly and a floor, the lower hinge assembly is riveted with the floor, the lower hinge assembly is welded by weather-resistant steel, and the floor The intermediate profile, side beams and end beams are welded, and the material of the intermediate profile, left and right side beams, and end beams is aluminum alloy. The underframe of the floating vehicle not only achieves the ideal effect of reducing the weight of the vehicle body through reasonable structural layout and selection of aluminum profiles, but also makes the connection between the underframe and the modules of the floating vehicle closely connect the vehicle body into a whole, which plays an effective role. The function of bearing and transmitting load, buffering and shock absorption and keeping the car body running smoothly.

Description

A 100% modern urban tram floating car body underframe

technical field

The invention belongs to the technical field of urban rail transit, and in particular relates to an underframe for a 100% modern urban tram floating car body.

Background technique

At present, the floating body of 100% low-floor modern urban trams mainly adopts an integrated frame-type welded steel structure, which not only has a large weight and consumes a lot of energy, but also its components are intertwined with each other, and each component cannot be independently synchronized during production. , affecting production efficiency, the versatility and interchangeability of parts are not good, any part of the car body is damaged and cannot be replaced separately, and the whole car body needs to be scrapped, causing great waste. Therefore, how to design the floating car body of a kind of new 100% low-floor modern urban tram has become a problem to be solved urgently by those skilled in the art. Among them, the bottom frame of the floating car constitutes an important part of the body module of the floating car, which plays the roles of connecting the side wall module and the end wall module, carrying passengers, bearing and transmitting loads, etc. It requires light weight, good strength and rigidity, convenient installation and maintenance equipment, and good versatility and interchangeability. The 100% modern urban tram floating car body chassis is proposed under this background condition.

Contents of the invention

The object of the present invention is to provide a kind of 100% modern urban tram floating car body underframe for the problems referred to above.

The purpose of the present invention is achieved through the following technical solutions:

A 100% modern urban trolley floating car body chassis, including a lower hinge assembly 1 and a floor 2, the lower hinge assembly 1 is riveted with the floor 2, the lower hinge assembly 1 is welded by weather-resistant steel, the floor 2. It is welded by the middle profile, side beams and end beams, and the material of the middle profile, left and right side beams, and end beams is aluminum alloy.

As an optional mode, the above-mentioned 100% modern urban tram floating car body chassis, the intermediate profile includes a first floor side panel 3, a floor middle panel 4, and a second floor side panel 5; The beam comprises a first floor edge beam 6 and a second floor edge beam 7; the end beam comprises a first floor end beam 8 and a second floor end beam 9; One long side of the middle plate 4 is welded, the other long side of the floor middle plate 4 is welded to a long side of the second floor side plate 5, the other long side of the first floor side plate 3 is welded to the first floor The side beam 6 is welded, the other long side of the second floor side panel 5 is welded to the second floor side beam 7, the first floor end beam 8 is connected to the first floor side panel 3, the floor middle panel 4, One short side of the second floor side plate 5 is welded, and the second floor end beam 9 is welded to the other short side of the first floor side plate 3 , the floor middle plate 4 , and the second floor side plate 5 .

As an optional way, the above-mentioned lower hinge assembly 1 is riveted with the end beam of the floor 2 , and the lower hinge assembly 1 is riveted with the side beam of the floor 2 .

As an optional way, the contact surface of the above-mentioned end beam and the lower hinge assembly 1 is made into a stepped shape that cooperates with each other, and the rivet passes through the contact surface of the end beam and the lower hinge assembly 1 to realize riveting; The contact surface of the side beam is made into a right-angle shape, the right-angle shape contact surface of the lower hinge assembly 1 cooperates with the right-angle side of the side beam, and the rivet passes through the contact surface of the lower hinge assembly 1 and the side beam to realize riveting.

As an optional mode, the contact surfaces between the lower hinge assembly 1 and the end beams and side beams are steel and aluminum contact surfaces, and the steel and aluminum contact surfaces are coated with insulating primer, insulating topcoat and sealant in sequence.

As an optional manner, the paint layer thickness of the insulating primer, epoxy primer, and insulating topcoat is 30±5 μm.

All features disclosed in this specification, or steps in all methods or processes disclosed, can be combined in any way, except for mutually exclusive features and/or steps.

In summary, owing to adopting above-mentioned technical scheme, the beneficial effect of the present invention is:

The underframe of the floating car in the present invention achieves the ideal effect of reducing the weight of the car body through reasonable structural arrangement and selection of aluminum profiles, and is more conducive to acceleration and deceleration during use and driving, saving energy. As an important part of the body module, the chassis of the floating car body plays the role of connecting the side wall module, the end wall module, carrying passengers, bearing and transmitting loads, etc., through the riveting of the aluminum alloy profile floor and the lower hinge assembly, so that The chassis of the whole floating car body has good versatility and interchangeability, and at the same time, it has achieved the necessary strength and rigidity. The underframe is used as the foundation of the vehicle body to realize the connection between the underframe and the modules of the floating vehicle, and the vehicle body is tightly connected into a whole, which plays the role of effectively bearing and transmitting loads, buffering shock absorption and maintaining the smooth operation of the vehicle body.

Description of drawings

The invention will be illustrated by way of example with reference to the accompanying drawings, in which:

Fig. 1 is the structure exploded schematic diagram of floating car body underframe;

Fig. 2 is the structural diagram after the chassis of the floating car body is completed;

Fig. 3 is a riveting structure diagram of the lower hinge assembly and the floor end beam;

Fig. 4 is a riveting structure diagram of the lower hinge assembly and the floor side beam;

Fig. 5 is a structural diagram of the lower hinge assembly;

Fig. 6 is a structural view of the other side of the lower hinge assembly.

Reference numerals: 1 is the lower hinge assembly, 2 is the floor, 3 is the first floor side panel, 4 is the middle panel of the floor, 5 is the second floor side panel, 6 is the first floor edge beam, 7 is the second floor edge Beam, 8 is the first floor end beam, 9 is the second floor end beam, 10 is a rivet, 11 is a base, 12 is a stepped shape or a Z-shaped plate, 13 is a right-angled shape or an L-shaped plate, and 14 is a damping mounting seat , 15 is a hinged panel, and 16 is a threaded connecting plate.

detailed description

All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and/or steps.

As shown in Figure 1, a 100% modern urban tram floating car body chassis includes a lower hinge assembly 1 and a floor 2, the lower hinge assembly 1 is riveted with the floor 2, and the lower hinge assembly 1 is welded by weather-resistant steel The floor 2 is welded by intermediate profiles, side beams, and end beams, and the material of the intermediate profiles, left and right side beams, and end beams is aluminum alloy.

As shown in Figures 1 and 2, the above-mentioned 100% modern urban tram floating car body chassis, the intermediate profile includes a first floor side panel 3, a floor middle panel 4, and a second floor side panel 5 The side beams include the first floor side beams 6 and the second floor side beams 7; the end beams include the first floor end beams 8 and the second floor end beams 9; one of the first middle floor side panels 3 The long side is welded to one long side of the floor middle plate 4, the other long side of the floor middle plate 4 is welded to a long side of the second floor side plate 5, and the other long side of the first floor side plate 3 Welded with the first floor side beam 6, the other long side of the second floor side panel 5 is welded with the second floor side beam 7, the first floor end beam 8 is connected with the first floor side panel 3, the floor One short side of the middle plate 4 and the second floor side plate 5 is welded, and the second floor end beam 9 is welded with the other short side of the first floor side plate 3 , the floor middle plate 4 , and the second floor side plate 5 .

As shown in FIG. 3 , the contact surface between the end beam and the lower hinge assembly 1 is made into a stepped or Z-shape that cooperates with each other, and the rivet passes through the contact surface of the end beam and the lower hinge assembly 1 to realize riveting.

As shown in Figure 4, the contact surface between the lower hinge assembly 1 and the side beam of the floor 2 is made into a right angle shape or an L shape, and the right angle shape or L shape contact surface of the lower hinge assembly 1 is matched with the right angle side of the side beam, and the rivets Pass through the contact surface of the lower hinge assembly 1 and the edge beam to realize riveting. The contact surfaces between the lower hinge assembly 1 and the end beams and side beams are steel and aluminum contact surfaces, and the steel and aluminum contact surfaces are coated with insulating primer, insulating topcoat and sealant in sequence. The paint layer thickness of the insulating primer, epoxy primer and insulating topcoat is 30±5 μm.

As shown in Figures 5 and 6, the lower hinge assembly includes a base 11, a stepped or Z-shaped plate 12 for riveting, a right-angled or L-shaped plate 13 for riveting, a damper mounting seat 14, a hinge Panel 15, a threaded connecting plate 16 for connecting the lug assembly, the hinged panel 15 is welded on the front end of the base 11, the stepped shape or Z-shaped plate 12 is welded on the rear end of the base 1, the right angle Shaped or L-shaped plates 13 are welded on both sides of the base 1, and a threaded connecting plate 15 and a damping mounting seat 14 are also welded on the base.

When assembling the underframe of the floating car body, clamp and fix the new floor 2 of the aluminum alloy profile and the lower hinge assembly 1 to maintain a good riveting fit position; rivet the lower hinge assembly and the floor end beam, as shown in Figure 3; rivet the lower hinge Components and floor edge beams, as shown in Figure 4; ultimately form the chassis.

After the bottom frame is formed, the bottom frame is riveted together with the side wall and the thin end wall through the lower hinge assembly 1 to form a stable and reliable lower structure of the floating car body. Among them, the lower hinge assembly is welded by weather-resistant steel, and cooperates with the longitudinal damper and other components to mainly play the roles of articulation between the motor car and the floating car body, transmission of traction force, buffering and shock absorption, etc., ensuring the smooth operation of the car body.

The present invention is not limited to the foregoing specific embodiments. The present invention extends to any new feature or any new combination disclosed in this specification, and any new method or process step or any new combination disclosed.

Claims (4)

1. A 100% modern urban tram floating car body chassis, comprising a lower hinge assembly (1) and a floor (2), characterized in that the lower hinge assembly (1) is welded by weather-resistant steel, said The floor (2) is welded by intermediate profiles, side beams, and end beams. The material of the intermediate profiles, edge beams, and end beams is aluminum alloy. The lower hinge assembly (1) is riveted with the floor (2). The lower hinge assembly (1) is riveted to the end beam of the floor (2), the lower hinge assembly (1) is riveted to the side beam of the floor (2), and the contact surface between the end beam and the lower hinge assembly (1) is made The step shape of mutual cooperation, the rivet passes through the contact surface of the end beam and the lower hinge assembly (1) to realize riveting; the contact surface of the lower hinge assembly (1) and the side beam of the floor (2) is made into a right angle shape, and the lower hinge The right-angled contact surface of the component (1) cooperates with the right-angled edge of the side beam, and the rivet passes through the contact surface of the lower hinge component (1) and the side beam to realize riveting. 2. A 100% modern urban tram floating car body underframe as claimed in claim 1, characterized in that: the intermediate profile includes a first floor side panel (3), a floor middle panel (4), The second floor side panel (5); the side beam includes the first floor side beam (6) and the second floor side beam (7); the end beam includes the first floor end beam (8), the second floor end beam beam (9); one long side of the first floor side plate (3) is welded to one long side of the floor middle plate (4), the other long side of the floor middle plate (4) is welded to the second floor side One long side of the panel (5) is welded, the other long side of the first floor side panel (3) is welded to the first floor side beam (6), and the other long side of the second floor side panel (5) The edge is welded to the second floor side beam (7), the first floor end beam (8) is connected to the first floor side panel (3), the floor middle panel (4), and the second floor side panel (5) One short side is welded, the second floor end beam (9) is welded to the other short side of the first floor side plate (3), the floor middle plate (4) and the second floor side plate (5). 3. A 100% modern urban trolley car floating car body chassis as claimed in claim 2, characterized in that: the contact surface between the lower hinge assembly (1) and the end beams and side beams is made of steel or aluminum For the contact surface, the steel and aluminum contact surfaces are coated with insulating primer, insulating topcoat and sealant in sequence. 4. A kind of 100% modern urban tram floating car body underframe as claimed in claim 3, characterized in that: the thickness of the paint layer of the insulating primer, epoxy primer, and insulating topcoat is 30 ± 5 μm.