CN206171488U - Low -floor light rail vehicle driver bogie frame - Google Patents

Abstract

The utility model discloses a low-floor light rail vehicle driving bogie frame. The driving bogie frame of the low-floor light rail vehicle includes two side beams, two end beams and a cross beam fixedly connected to form a "day"-shaped frame structure; A secondary spring mounting seat is provided at the lower plane of the vehicle body, and the secondary spring mounting seat is used to install the secondary spring connected with the vehicle body; the side beam includes a vertical plate and an upper cover plate fixedly connected with the vertical plate, wherein The end of the vertical plate is provided with a motor mounting hole, and at the same time, a motor mounting seat is arranged at the upper cover directly above the vertical plate. The bogie frame of the utility model has simple structure, good manufacturability, and structural strength meets actual requirements.

Description

A low-floor light rail vehicle driving bogie frame

technical field

The utility model relates to a low-floor light rail vehicle driving bogie frame, which belongs to the field of rail vehicles.

Background technique

100% low-floor light rail vehicles do not require platforms, making it easy for passengers to get on and off. If it is equipped with supercapacitor technology, it can realize no catenary. Due to the above advantages, low-floor trams are being used more and more widely.

For the convenience of passengers getting on and off, the floor height of 100% low-floor light rail vehicles is generally about 350mm. Since the distance between the carriage and the track is very small, the design space of the bogie is very limited, and the frame is used as the frame of the bogie. The design becomes very important.

100% low-floor light rail vehicle bogies can be divided into transverse coupling drive, longitudinal coupling drive, motor hub direct drive and other forms. The bogie frame that adopts longitudinal coupling drive is generally provided with a cantilever beam for suspending the motor and supporting the secondary spring.

Chinese patent CN201010520466.5 discloses a 100% low-floor light rail vehicle bogie frame, which is composed of a box-shaped beam structure with complex structure, large amount of welding, and difficult to control welding deformation. Moreover, the weight of the motor and the weight of the car body are all borne by the cantilevered side beams, which requires extremely high structural strength.

Chinese patent CN201420078494.0 discloses a 100% low-floor tram power bogie frame, which is equipped with four cantilevered motor suspension seats, and the side beams are also box-shaped beams, which require extremely high structural strength .

Utility model content

The utility model aims to provide a low-floor light rail vehicle driving bogie frame, which has a simple structure, good manufacturability, and structural strength meeting actual requirements.

In order to achieve the above object, the technical solution adopted in the utility model is:

A low-floor light rail vehicle driving bogie frame, including two side beams, two end beams and a cross beam fixedly connected to form a "day"-shaped frame structure; the structural feature is that the side beams are bow-shaped as a whole , and at the lower plane of the middle part of the side beam, there is a secondary spring mounting seat, which is used to install the secondary spring connected to the vehicle body; the side beam includes a vertical plate and is fixedly connected with the vertical plate The upper cover plate, wherein the end of the vertical plate is provided with a motor mounting hole, and at the same time, a motor mounting seat is provided at the upper cover plate directly above the vertical plate.

According to the embodiments of the present invention, the present invention can also be further optimized, and the following is the technical scheme formed after optimization:

In order to realize lightweight design, the side beam is a T-shaped cross-section single vertical plate structure, which is simple in structure and reduces weight.

A vertical shock absorber mounting seat is provided on the upper cover above the middle part of the vertical plate.

In order to meet various installation requirements in a limited space, the lower part of the vertical plate is provided with a tie spring mounting seat. Thus, the structure of the utility model is more compact.

Two U-shaped magnetic track brake installation seats are arranged on the outer side of the upper cover plate of the side beam. As a result, the mounting seat of the magnetic rail brake is integrated with the side beam, which improves the structural strength of the mounting seat.

The middle part of the side beam is a box beam, and one side of the middle part of the side beam is connected with the cross beam.

In order to meet various installation requirements in a limited space, the beam is a box-shaped beam structure, and the lower cover of the beam is hollowed out for installing vertical stoppers and lateral stoppers. Thus, the structure of the utility model is more compact.

In order to meet various installation requirements in a limited space, one side of the beam is a drawbar mounting seat, and the other side is provided with an anti-rolling mounting seat. Thus, the structure of the utility model is more compact.

In order to realize lightweight design, the end beam has an I-shaped cross-section structure, the end of the end beam is connected to the end of the side beam, and an anti-bending shock absorber mounting seat is provided in the middle of the end beam. Therefore, the I-shaped section has a simple structure and is easy to weld.

The frame is 100% low-floor light rail vehicle bogie frame.

Compared with the prior art, the beneficial effects of the utility model are: the frame structure of the utility model is simpler, the number of weld seams is reduced, the welding deformation can be better controlled, the partition is reduced, the weight is reduced, and the lightweight requirements. In addition, the framework of the utility model has good manufacturability, and the structural strength can meet the actual requirements.

Description of drawings

Fig. 1 is the structure schematic diagram of an embodiment of the utility model;

Fig. 2 is the structural representation of side beam described in the utility model;

Fig. 3 is the structural representation of beam described in the utility model;

Fig. 4 is a structural schematic diagram of the end beam of the present invention.

detailed description

The utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. For the convenience of description, if the words "up", "down", "left" and "right" appear in the following, it only means that the directions of up, down, left and right are consistent with the drawings themselves, and do not limit the structure.

A 100% low-floor light rail vehicle driving bogie frame, as shown in Figures 1 to 4, mainly consists of two side beams 1, two end beams 2 and a cross beam 3 through welding to form a "day"-shaped frame structure.

The end of the side beam is a T-shaped cross-section single vertical plate structure, which is welded by a formed vertical plate and the upper cover plate, and the side beam is in the shape of a "bow" as a whole. The end of the vertical plate is provided with a motor mounting hole, and at the same time, another motor mounting seat is provided at the upper cover directly above it. A vertical shock absorber installation seat is arranged on the upper cover plate in the middle part of the vertical plate. The middle part of the side beam is a box beam, and the upper plane is a secondary spring mounting seat. One side of the middle part of the side beam is connected with the cross beam. Two U-shaped magnetic track brake installation seats are arranged on the outer side of the upper cover plate of the side beam. The lower part of the vertical plate is provided with a cylindrical spring mounting seat.

The beam is a box beam structure, and the lower cover plate of the beam is hollowed out for installing vertical stoppers and horizontal stoppers. The beam has a drawbar mount on one side and an anti-roll mount on the other. The end beam is a welded structure with "I"-shaped cross-section, which is connected with the end of the side beam. An anti-bending shock absorber mounting seat in the middle of the end beam.

As shown in Figure 2, the side beam is in the shape of a "bow" as a whole. The lower plane of the middle part of the side beam is provided with a secondary spring mounting seat 4, which is used to install the secondary steel spring and connect it with the vehicle body. Since the plane here is low, the height of the secondary spring mounting surface of the vehicle body can be reduced, giving There is space in the compartment to install the seats.

Both ends adopt a single vertical plate structure, which is composed of an upper cover plate and a side beam vertical plate. Compared with the box girder, the side girder adopts the form of a single vertical plate, which has a simpler structure, reduces the number of welds, can better control the welding deformation, reduces the partition, reduces the weight, and better meets the lightweight requirements.

As shown in Figure 3, the beam is box-shaped, but there are a lot of hollows in it. On the one hand, it meets the installation requirements of the interface of each component, and on the other hand, each weld has a good welding orientation, which can improve the quality of the weld.

As shown in Figure 4, the end beam is an "I"-shaped section beam, which is connected to the side beam through a butt weld.

According to the structural requirements of the bogie, the side beams and beams are assembled and welded first. The process of assembling and welding the side beams: first assemble the side beam vertical plate and the lower cover plate, and then assemble and weld with the upper cover plate. The process of welding the beam: First, weld the traction seat and the vertical plate through the butt weld, then weld the other partitions and the upper and lower cover plates, and finally connect the anti-roll torsion bar mounting seat and the upper and lower cover plates of the beam through the butt joint The seam is welded on one side of the beam. Frame assembly: assemble the welded beam body through special tooling to assemble the frame together for assembly and welding.

The above-mentioned embodiments should be understood that these embodiments are only used to illustrate the utility model more clearly, and are not intended to limit the scope of the utility model. After reading the utility model, those skilled in the art will understand each aspect of the utility model Modifications in various equivalent forms all fall within the scope defined by the appended claims of this application.

Claims (10)

1. A low-floor light rail vehicle driving bogie frame, including two side beams (1), two end beams (2) and a beam (3) fixedly connected to form a "day"-shaped frame structure; its characteristics That is, the side beam (1) is bow-shaped as a whole, and a secondary spring mounting seat is provided at a lower plane in the middle of the side beam (1), and the secondary spring mounting seat is used to install the secondary The side beam (1) includes a vertical plate and an upper cover fixedly connected with the vertical plate, wherein the end of the vertical plate is provided with a motor installation hole, and at the same time, a Motor mount. 2. The low-floor light rail vehicle driving bogie frame according to claim 1, characterized in that the side beam (1) is a T-shaped cross-section single vertical plate structure. 3. The low-floor light rail vehicle driving bogie frame according to claim 1, wherein two U-shaped magnetic rail brake mounting seats are arranged on the outer side of the upper cover plate of the side beam. 4. The low-floor light rail vehicle drive bogie frame according to claim 1, characterized in that, a vertical shock absorber mounting seat is provided on the upper cover above the middle part of the vertical plate. 5. The low-floor light rail vehicle driving bogie frame according to claim 1, wherein a tie spring mounting seat is provided at the lower part of the vertical plate. 6. The drive bogie frame for low-floor light rail vehicles according to any one of claims 1-5, wherein the middle part of the side beam is a box-shaped beam, and one side of the middle part of the side beam is connected to the cross beam. 7. The low-floor light rail vehicle driving bogie frame according to any one of claims 1-5, characterized in that the beam is a box-shaped beam structure, and the lower cover of the beam is hollowed out for installing vertical stops and horizontal stops. 8. The low-floor light rail vehicle driving bogie frame according to any one of claims 1-5, wherein one side of the beam is a drawbar mounting seat, and the other side is provided with an anti-rolling mounting seat. 9. The low-floor light rail vehicle driving bogie frame according to any one of claims 1-5, wherein the end beam is an I-shaped cross-section structure, and the end of the end beam is connected to the end of the side beam, And there is an anti-bending shock absorber mounting seat in the middle of the end beam. 10. The low-floor light rail vehicle drive bogie frame according to any one of claims 1-5, characterized in that the frame is a 100% low-floor light rail vehicle bogie frame.