WO2019100719A1

WO2019100719A1 - Control car chassis and control car

Info

Publication number: WO2019100719A1
Application number: PCT/CN2018/093562
Authority: WO
Inventors: 侯亚辉; 张国栋; 郭金城; 贾志言; 孟林林; 王智群; 李志申
Original assignee: 中车唐山机车车辆有限公司
Priority date: 2017-11-22
Filing date: 2018-06-29
Publication date: 2019-05-31
Also published as: CN109808725B; CN109808725A

Abstract

A control car chassis, said control car comprising an end wall, and a cab; the end wall and the cab are respectively arranged at a front end and a rear end of said chassis; a towing beam (1) is fixed on a bottom surface of both the front end and the rear end of the chassis; the towing beam (1) is shaped by bending a steel plate. The towing beam uses a steel plate bending shaping structure to replace an existing tailor welded structure, thus having a better processing moldability, reducing an amount for welding and improving the bearing capability of the towing beam. Further comprised is a control car comprising the chassis.

Description

Control vehicle undercarriage and control car

Technical field

The present application relates to rail transit technology, and in particular to a vehicle undercarriage and a control vehicle.

Background technique

The Type 25 bus has been in operation for many years, and many technologies have been gradually upgraded. Many new structures and design concepts have been applied to the design, which has greatly improved the stability and comfort of the vehicle.

The car body underframe is the key bearing component of the car body steel structure, which plays a vital role in the safe operation of the whole vehicle. The design needs to pay attention to the lightweight requirements under the premise of ensuring the strength is reliable. The existing car body chassis design is shown in the figure. As shown in Fig. 1, in order to meet the needs of the installation of large components such as the under-car battery box and the brake cylinder, the vehicle body underframe is designed with a mounting hanger such as a battery box hanger and a brake hanger, and the hanger is welded in the pillow. On the outer beam, the sling provides a mounting interface for large components such as battery boxes and brake cylinders. However, at present, the large parts such as the battery compartment and the brake cylinder have been universalized, so the installation interface of the vehicle body has been basically unified. For the current car body underframe structure, each design of a new car chassis requires redesigning the sling and re-labeling the dimensions, welding and technical requirements associated with the sling. Repeated work is more error-prone and less efficient.

In addition, the traction frame is designed on the underframe, and the coupler is connected to carry most of the power of the vehicle. It belongs to the key component of the chassis. The existing traction beam structure is shown in Figure 2 and Figure 3. At present, the traction beam components of the 25-type undercarriage are welded by 300X85X7.5 channel steel, and the channel steel is Q235B, and the material yield strength is relatively low. The channel steel is a section steel. As shown in Fig. 2 and Fig. 3, the channel steel needs to be cut into 3 parts and then welded together. The forming process is poor and a lot of waste is caused. The tailor welding increases the workload of the manufacturing, and since the traction beam carries the key components for the chassis, the welding requirements for the welded joint are high. A mounting bracket is mounted on the traction beam for mounting the coupler. At present, the fixing method of the mounting bracket on the traction beam is riveting, and an operation space needs to be reserved for the riveting of the rivet. The design operation space also needs to be considered. Increase the design difficulty.

In addition, there are iron floors in the underframe pillows, mostly corrugated floors, and the corrugated floor extends to the bolster webs. The connection between the corrugated floor and the bolster is shown in Figure 4. According to the existing connection method, the assembly process is as follows: firstly, the upper cover of the bolster and the web of the bolster are welded, and then the welded corrugated floor is assembled. Since the height of the corrugated floor is not easy to control, when assembling the corrugated floor, the corrugated floor end needs to be adjusted and inserted under the upper cover of the bolster, which requires higher assembly precision and increased workload.

Summary of the invention

To solve one of the above technical problems, the present application provides a control vehicle undercarriage including an end wall and a driver's cab, the end wall and the driver's cab being respectively located at front and rear ends of the chassis, the chassis A traction beam is fixed on the bottom surfaces of the front and rear ends, and the traction beam is formed by bending a steel plate.

In some alternative implementations, a coupler mount is mounted to the draw beam adjacent to the side wall of the control vehicle by rivets.

In some alternative implementations, a coupler mount is welded to the draw beam adjacent the driver's cab side of the control vehicle.

In some optional implementations, the chassis further includes a reinforcing plate and a U-shaped rib, and the reinforcing plate is fixed to the left and right sides of the traction beam near the end wall side and near the cab side, One end of the U-shaped rib is connected to one of the reinforcing plates, the other end of the U-shaped rib is connected to the other reinforcing plate, and the inner side of the bottom surface of the U-shaped rib is connected to the coupler mounting.

In some optional implementations, the front side of the traction beam adjacent to the cab side is provided with a front end structure, the front end structure is a closed cavity, and the bottom of the front end structure is equipped with a damper.

In some optional implementations, the chassis includes a passenger compartment side beam and a cab side beam, the driver room side beam is higher than the passenger compartment side beam, and the driver room side beam and the passenger compartment side beam A connecting beam is fixed between them.

In some optional implementations, the connecting beam is internally provided with ribs, and the two ends of the rib are respectively connected to the driver's side sill and the passenger compartment side sill.

In some optional implementations, the control vehicle includes mutually symmetric vehicle doors, and the passenger compartment side beams are divided into left and right parts, wherein the left portion is fixed to the left side of the control vehicle door, and the right portion is fixed to the control vehicle door. On the right side.

In some optional implementations, a cross-shaped frame structure is disposed on the chassis between the mutually symmetrical doors, and an end of the cross-shaped frame structure extends toward and is coupled to the passenger compartment side rail.

In some optional implementations, the chassis further includes a pillow outer beam disposed on the end wall side, and the toilet outer sling module is welded to the outer beam.

In some optional implementations, the chassis further includes an intra-pillar beam disposed in the passenger compartment, and the battery box hoisting module and the brake cylinder hoisting are welded on the pillow inner beam Module.

In some optional implementations, the chassis further includes a bolster upper cover and a bolster web, the bolster webs are fixed at the front and rear ends of the inner beam of the pillow, and the top of the bolster web is disposed a bolster upper cover plate, a corrugated floor is disposed in an area between the bolster upper cover plate and the bolster web disposed at the front and rear ends of the occipital beam, and the upper surface of the corrugated floor and the bolster upper cover The lower surface is joined and the side walls of the corrugated floor are joined to the inner side walls of the bolster web.

In some optional implementations, the chassis further includes a connection blocking plate, the connection blocking plate is an inverted T-shape, the connection blocking plate includes a flat plate and a vertical plate, and the vertical plate is vertically fixed on the flat plate. Upper side of the riser is fixedly connected to the end surface of the upper cover of the bolster, and the end surface of the flat plate facing the one side of the riser is fixedly connected with the web of the bolster, and the other side of the riser And an upper surface of the flat plate that is in the same direction as the other side of the riser is connected to the side wall and the lower surface of the corrugated floor, respectively.

In order to solve the above technical problems, the present application also proposes a control vehicle comprising the above-described control vehicle undercarriage.

In some optional implementations, the outer side wall of the cab, the outer side wall of the driver's cab side rail fixed to the bottom of the cab, and the outer side wall of the skirt fixed to the bottom of the cab side beam are located on the same curved surface.

In some optional implementations, the cab, the driver's side sill, and the outer sidewall of the skirt are covered with a curved skin.

The beneficial effects of the application are as follows:

The utility model adopts a universal hanging seat installation interface on the outer beam of the pillow and the inner beam of the pillow, so that it can be directly used as a standardized module in the design of the subsequent new model, thereby improving the design efficiency and reducing the error rate. At the same time, the traction beam structure formed by sheet bending is used to replace the existing tailor-welded beam structure, which has better process formability, reduces the welding amount and improves the bearing capacity of the traction beam. In addition, changes have been made in the mounting method of the coupler mount and the traction beam, and the welding method is adopted to solve the problem of limited space when riveting. At the same time, the ribs are placed on the mount to ensure the strength of the mount. In addition, the present application relates to the structure of connecting the blocking plate when the corrugated floor is connected with the bolster, which facilitates the welding assembly of the corrugated floor and reduces the amount of maintenance work.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the present application, and are intended to be a part of this application. In the drawing:

1 is a schematic structural view of a conventional control vehicle underframe;

2 is a front view showing the structure of a conventional traction beam;

Figure 3 is a top plan view of the traction beam of Figure 2;

Figure 4 is a schematic view showing the installation of a conventional corrugated floor;

Figure 5 is a front view showing the structure of the traction beam 1 according to the embodiment;

Figure 6 is a top plan view of Figure 5;

7 is a schematic structural view of a bottom surface of the chassis according to the embodiment;

8 is a schematic structural view of a top surface of a bottom surface according to the embodiment;

Figure 9 is a partial enlarged view of a portion A of Figure 8;

Figure 10 is a schematic view showing the installation of the reinforcing plate 4 and the U-shaped rib 5;

Figure 11 is a view taken along line A-A of Figure 10;

Figure 12 is a schematic structural view of the reinforcing plate 4;

Figure 13 is a schematic structural view of a U-shaped rib 5;

Figure 14 is a schematic cross-sectional view of the passenger compartment side rail 6;

Figure 15 is a schematic cross-sectional view of the driver's cab side beam 7;

Figure 16 is a schematic view showing the structure of the passenger compartment side beam 6 and the driver's cab side beam 7 fixed by the connecting beam 8;

Figure 17 is a plan view of Figure 16;

Figure 18 is a schematic view showing the structure of a well type frame according to the embodiment;

Figure 19 is a schematic structural view of the outer beam of the pillow;

Figure 20 is a plan view of Figure 19;

Figure 21 is a view taken along line A-A of Figure 19;

Figure 22 is a view taken along line A in Figure 21;

Figure 23 is a B-direction view of Figure 21;

Figure 24 is a B-B arrow view of Figure 19;

Figure 25 is a cross-sectional view taken along line C-C of Figure 19;

Figure 26 is a schematic structural view of the inner beam of the pillow;

Figure 27 is a view taken along line A-A of Figure 26;

Figure 28 is a B-B arrow view of Figure 26;

Figure 29 is a C-C arrow view of Figure 26;

Figure 30 is a D-D arrow view of Figure 26;

Figure 31 is a cross-sectional view taken along line E-E of Figure 26;

Figure 32 is a cross-sectional view taken along the line F-F of Figure 26;

Figure 33 is a schematic structural view showing the installation of the corrugated floor panel 14 according to the embodiment;

Figure 34 is a perspective view showing the three-dimensional structure of the driver's cab, the cab side beam 7 and the skirt 16;

Figure 35 is a plan view showing the structure of the driver's cab, the driver's cab side beam 7 and the skirt 16.

Reference number:

1. Traction beam, 2, coupler mount, 3, front end structure, 4, reinforcing plate, 5, U-shaped rib plate, 6, passenger room side beam, 7, driver room side beam, 8, connecting beam, 9, Rib board, 10, bolster upper cover, 11, bolster web, 12, riser, 13, flat, 14, corrugated floor, 15, the outer side of the cab, 16, skirt.

Detailed ways

The exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Not all embodiments are exhaustive. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

As shown in FIG. 5 to FIG. 7 , the embodiment provides a control vehicle underframe. The control vehicle includes an end wall and a driver's cab. The end wall and the driver's cab are respectively located at front and rear ends of the chassis. A traction beam 1 is fixed on the bottom surfaces of the front and rear ends of the chassis, and the traction beam 1 is formed by bending a steel plate.

Specifically, the traction beam 1 of the present embodiment has a thickness of 8 mm, and the material is bent and formed by the Q345E steel plate, which reduces the welding amount of the tailor welding and improves the strength.

Further, as shown in FIG. 8 and FIG. 9 , the hook mounting brackets 2 are disposed on the traction beams 1 at both ends, wherein the space near the side wall of the control vehicle is large, and the auxiliary installation is relatively small, so The traction beam 1 on this side can still be mounted with the coupler mount 2 by means of rivets. However, the traction beam 1 near the driver's cab side of the control vehicle has a limited space on the side of the end wall, and an auxiliary member such as a damper is also installed in the lower portion. If the coupler mount 2 on the side is still riveted, the subsequent The rivet is disassembled and inspected, so that the coupler mount 2 on the traction beam 1 near the driver's side of the control vehicle is fixedly connected by welding. At the same time, in order to ensure the installation of the damper, a front end structure 3 of a closed cavity is arranged on both sides of the traction beam 1.

In order to ensure the connection strength between the coupler mount 2 and the traction beam 1, as shown in FIGS. 10 and 11, the chassis further includes a reinforcing plate 4 and a U-shaped rib 5, and the structure of the reinforcing plate 4 is as shown in FIG. The structure of the U-shaped rib 5 is as shown in FIG. 13, and the reinforcing plate 4 is fixed to the left and right sides of the traction beam 1 near the end wall side and near the cab side, and one end of the U-shaped rib 5 is One reinforcing plate 4 is connected, the other end of the U-shaped rib 5 is connected to the other reinforcing plate 4, and the inner side of the bottom surface of the U-shaped rib 5 is connected to the coupler mount 2.

Further, as shown in FIG. 14 to FIG. 17, the chassis of the present embodiment includes a passenger compartment side beam 6 and a driver's cab side beam 7, and the driver's cab side beam 7 is higher than the passenger compartment side rail 6, and A connecting beam 8 is fixed between the driver's cab side beam 7 and the passenger compartment side rail 6.

Specifically, the passenger room side beam 6 and the driver's room side beam 7 have a height difference in the height direction. In order to ensure the smooth connection of the two and the continuity of the stress transmission, the connecting beam 8 structure is arranged on the connecting faces of the two side beams. A rib 9 is provided inside the connecting beam 8, and the rib 9 is connected to the cross section of the passenger compartment side rail 6 and the driver's side sill 7, ensuring continuity of stress transmission.

Further, as shown in FIG. 18, the control vehicle includes mutually symmetric vehicle doors, and the passenger compartment side beam 6 is divided into left and right parts, wherein the left part is fixed on the left side of the control vehicle door, and the right part is fixed on the control vehicle. The right side of the door.

Specifically, in order to facilitate the installation of the door-related plug door and the pedal flap, the passenger compartment side rail 6 at the door position is disconnected, which also facilitates the passage of the passenger. However, due to the breakage of the side beam, the strength of the underframe at the door is affected. To this end, a cross-shaped frame structure is disposed on the chassis between the mutually symmetrical doors, and the well-shaped frame structure is The end point extends toward and is connected to the passenger compartment side rail 6. The frame structure ensures the continuity of the chassis. In addition to the well-type frame structure described in this embodiment, it can also be realized by designing a middle beam scheme, and the middle beam can be a long-length structure connecting two bolster beams.

Further, the chassis of the embodiment further includes a pillow outer beam and an inner pillow beam. As shown in FIG. 19 to FIG. 25, the external beam is disposed on the side of the end wall, and the toilet hoisting module is welded to the external beam. As shown in FIGS. 26 to 32, the intra-pillow beam is disposed in a passenger compartment, and the battery box lifting module and the brake cylinder lifting module are welded to the inner beam.

Specifically, the toilet seat hanger is welded by welding on the outer beam of the underframe pillow, and the battery box hanger and the brake cylinder hanger seat are welded by welding on the inner beam of the pillow, because of the toilet assembly equipment under the vehicle and The equipment parts such as the battery box and the brake air cylinder have been generalized, so the hanger mounting interface is also universal. In the design of the chassis drawing, the toilet hoisting module, the battery box hoisting module and the brake hoisting module are designed. As a result, each of the mounts is standardized and modularized, and can be used directly for the design of subsequent new models to improve design efficiency.

Further, the chassis further includes a bolster upper cover 10 and a bolster web 11 fixed to the front and rear ends of the inner beam of the pillow, and the top of the bolster web 11 is provided with a bolster The upper cover 10, a corrugated floor 14 is disposed in a region between the bolster upper cover 10 and the bolster web 11 disposed at the front and rear ends of the intra-pillar beam, and the upper surface of the corrugated floor 14 and the bolster The lower surface of the upper cover 10 is joined, and the side wall of the corrugated floor 14 is connected to the inner side wall of the bolster web 11.

Specifically, the connection manner of the corrugated floor 14 is not different from the prior art, and there is still a problem that the installation is difficult. Therefore, the present embodiment is between the corrugated floor 14 and the bolster web 11 and the bolster upper cover 10 . A connection blocking plate is provided. As shown in FIG. 33, the connection blocking plate is an inverted T-shape, and the connecting blocking plate comprises a flat plate 13 and a vertical plate 12, and the vertical plate 12 is vertically fixed on the flat plate 13 One side of the riser 12 is fixedly connected to the end surface of the bolster upper cover 10, and the end surface of the flat plate 13 in the same direction as one side of the riser 12 is fixedly connected with the bolster web 11, the riser 12 The other side and the upper surface of the flat plate 13 which is in the same direction as the other side of the riser 12 are connected to the side walls and the lower surface of the corrugated floor 14, respectively.

Taking the side of the end wall as an example, the left side surface of the vertical plate 12 connecting the blocking plates is connected with the bolster upper cover 10, and the left side wall of the flat plate 13 is connected with the bolster web 11 so that the connecting blocking plate and the bolster are connected. A rectangular space is formed between the cover 10 and the bolster web 11, and the right side of the riser 12 connecting the blocking plates is connected to the corrugated floor 14 such that the corrugated floor 14 and the bolster upper cover 10 are provided. The positions are relatively independent and do not affect each other's installation and welding.

This embodiment also proposes a control vehicle comprising the above-described control vehicle undercarriage.

Further, as shown in FIGS. 34 and 35, the outer side wall 15 of the cab, the outer side wall of the driver's cab side beam 7 fixed to the bottom of the driver's cab, and the outer side of the skirt 16 fixed to the bottom of the cab side beam 7 are shown. The walls are on the same surface.

Specifically, the driver's cab, the side rails, and the skirt 16 can be smoothly transitioned to form a streamlined shape structure, which not only increases the appearance but also reduces the wind resistance. At the same time, the driver's cab, the cab side beam 7 and the outer side wall of the skirt 16 are covered with a curved skin.

It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims

A control vehicle chassis includes an end wall and a driver's cab, wherein the end wall and the driver's cab are respectively located at front and rear ends of the chassis, wherein the bottom and bottom ends of the chassis are fixed on the bottom surface There is a traction beam, and the traction beam is formed by bending a steel plate.
The control vehicle underframe of claim 1 wherein a coupler mount is mounted to the draw beam adjacent to the side wall of the control vehicle by rivets.
A control undercarriage according to claim 1 or 2, wherein a coupler mount is welded to the draw beam adjacent to the driver's cab side of the control vehicle.
The control vehicle underframe according to claim 3, wherein the chassis further comprises a reinforcing plate and a U-shaped rib, the left and right sides of the outer surface of the traction beam near the end wall side and near the cab side A reinforcing plate is fixed on both sides of the mounting bracket, and a U-shaped rib is fixed on the inner surface of the traction beam, and the left and right side walls of the U-shaped rib are fixedly connected with the traction beam, and the U-shaped rib The bottom surface is fixedly connected to the coupler mount.
The control vehicle underframe according to claim 4, wherein the front side of the traction beam adjacent to the cab side is provided with a front end structure, the front end structure is a closed cavity, and the bottom end of the front end structure is installed Discharger.
The control vehicle underframe of claim 1 , the chassis comprising a passenger compartment side rail and a cab side rail, the cab side rail being higher than the passenger compartment side rail, and the driver cab side beam and passenger compartment A connecting beam is fixed between the side beams.
The control vehicle underframe according to claim 6, wherein the connecting beam is internally provided with a rib, and the two ends of the rib are respectively connected to the driver's side sill and the passenger compartment side sill.
The control vehicle underframe according to claim 6 or 7, wherein the control vehicle comprises mutually symmetrical door members, wherein the passenger compartment side beam is divided into left and right parts, wherein the left part is fixed to the left of the control vehicle door The side and right parts are fixed to the right side of the control car door.
The control undercarriage according to claim 8, wherein a cross-shaped frame structure is disposed on the chassis between the mutually symmetrical doors, and an end point of the well-shaped frame structure faces the passenger compartment The beam extends and is connected to it.
The control vehicle underframe according to claim 1, wherein the chassis further comprises a pillow outer beam, the outer beam is disposed on the end wall side, and the toilet outer lifting module is welded to the outer beam.
The control vehicle underframe according to claim 10, wherein the chassis further comprises an intra-pillar beam, the intra-pillar beam is disposed in a passenger compartment, and the battery box lifting module is welded to the inner beam of the pillow Brake cylinder lifting module.
The control vehicle underframe according to claim 11, wherein the chassis further comprises a bolster upper cover and a bolster web, wherein the bolster web is fixed at the front and rear ends of the inner beam of the pillow, and the pillow The top of the beam web is provided with a bolster upper cover plate, and a corrugated floor is arranged in a region between the bolster upper cover plate and the bolster web disposed at the front and rear ends of the occipital beam, and the corrugated floor is The surface is connected to the lower surface of the upper cover of the bolster, and the side wall of the corrugated floor is connected to the inner side wall of the web of the bolster.
The control vehicle underframe according to claim 12, wherein the chassis further comprises a connecting blocking plate, the connecting blocking plate is an inverted T-shape, and the connecting blocking plate comprises a flat plate and a vertical plate, The riser is vertically fixed on the flat plate, one side of the riser is fixedly connected with the end surface of the upper cover of the bolster, and the end surface of the flat plate facing the one side of the riser is fixedly connected with the web of the bolster, The other side of the riser and the upper surface of the flat plate in the same direction as the other side of the riser are respectively connected to the side walls and the lower surface of the corrugated floor.
A control vehicle, characterized in that the control vehicle comprises the control vehicle underframe according to any one of claims 1 to 13.
The control vehicle according to claim 14, wherein an outer side wall of the cab, an outer side wall of a driver's cab side rail fixed to a bottom of the cab, and an outer side wall of a skirt fixed to a bottom of the driver's side beam are located. On the same surface.
A control vehicle according to claim 14 or 15, wherein the driver's cab, the cab side rails and the outer side walls of the skirt are covered with a curved skin.