CN201923142U - Stainless steel vehicle body structure of subway driver cab - Google Patents

Abstract

The utility model relates to a stainless steel subway driver's cab car body structure, which comprises a driver's cab steel skeleton and a glass fiber reinforced plastic head cover. , the car body structure also includes a one-piece end wall installation assembly, the driver's cab body is fixedly connected with one end wall installation assembly, and the one-side end wall installation assembly is fixedly connected with the vehicle body frame of the vehicle body. The car body structure effectively avoids the mutual interference between the glass fiber reinforced plastic hood and the steel frame in the prior art during assembly. Problems such as installation position deviation, so as to ensure the accuracy and synchronization of the connection between the front and the car body. In addition, the manufacturing process of the car body structure is simple, which can greatly reduce manufacturing costs and improve work efficiency.

Description

Stainless steel subway cab body structure

technical field

The utility model relates to a subway car body structure, in particular to a stainless steel subway driver's cab car body structure, which belongs to the technical field of subway vehicle manufacturing.

Background technique

In the past, the structure of the stainless steel subway cab car body, including the steel frame of the driver's cab and the glass fiber reinforced plastic hood, the steel frame of the driver's cab and the glass fiber reinforced plastic hood were all manufactured separately, and finally assembled in the tire position of the car body. The studs are fixedly connected together to form a complete driver's cab body structure, and the assembled driver's cab body structure is then fixedly connected to the body frame of the body through bolts, so that the driver's cab and the car body are fixedly connected.

This type of cab body structure will cause large installation errors during assembly, and the interference between the FRP hood and the steel frame requires on-site grinding, which not only has low work efficiency and high manufacturing costs, but also produces a large number of Dust has caused great environmental pollution and brought great harm to the health of operators.

Contents of the invention

The main purpose of the utility model is to solve the above problems and provide a stainless steel subway driver's cab car body structure with simple assembly process, low manufacturing cost, no need for existing car grinding, and no environmental pollution.

In order to achieve the above object, a stainless steel subway cab car body structure includes a cab steel skeleton and a fiberglass hood, the cab steel skeleton and the fiberglass hood are directly pasted as a whole to form a complete cab car body, the car body structure also includes a one-piece end wall installation assembly, the driver's cab body is fixedly connected with one end wall installation assembly, and the one-side end wall installation assembly is fixedly connected with the vehicle body frame of the vehicle body.

Wherein, the overall flatness of the rear end surface of the cab body is not greater than 3 mm.

A plurality of installation holes are arranged on the rear end surface of the vehicle body of the driver's cab, and the installation holes are a cross structure composed of two oblong holes intersecting.

A gap of 3-5mm is reserved between the chassis mounting seat at the bottom of the driver's cab and the chassis of the vehicle body.

The one-end installation assembly is a frame structure, its shape and installation size match the driver's cab body and the vehicle body frame fixedly connected with it, and one side of the one-end installation assembly is welded and fixed to the vehicle body frame connected, and the other side is a mounting surface that is fixedly connected with the rear end surface of the cab body through fasteners.

The overall flatness of the installation surface of the one-end installation component is not greater than 3mm.

The perpendicularity between the one-end installation component and the chassis of the vehicle body is not more than 3mm outward, and the diagonal is not more than 4mm.

The deviation between the center line of the upper beam of the one-end installation component and the center of the vehicle body chassis is not greater than 2mm.

To sum up, the stainless steel subway driver's cab car body structure described in the utility model directly pastes the glass fiber reinforced plastics with the steel skeleton to form a whole, and then connects the car body frame through an end wall installation component, which effectively avoids the existing technology. The problem of mutual interference between the glass fiber reinforced plastic hood and the steel frame eliminates the need for research and grinding of the existing vehicle, which greatly reduces the environmental pollution caused by grinding, and also effectively avoids problems such as installation position deviation, thereby ensuring the connection between the front and the body accuracy and synchronization. In addition, the manufacturing process of the car body structure is simple, which can greatly reduce manufacturing costs and improve work efficiency.

Description of drawings

Fig. 1 schematic diagram of steel frame structure of driver's cab of the present utility model;

Fig. 2 structural representation of the utility model FRP hood;

Figure 3 is a schematic diagram of the structure of the driver's cab of the utility model:

Fig. 4 is a schematic diagram of the structure of an end wall installation component of the utility model.

As shown in Figures 1 to 4, the cab steel frame 1, the cab body 2, the rear end surface 3, the mounting seat 4, a side wall mounting assembly 5, the mounting surface 6, and the glass fiber reinforced plastic hood 7.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

As shown in Figures 1 to 3, a stainless steel subway driver's cab car body structure includes a driver's cab steel frame 1 and a fiberglass hood 7, and the driver's cab steel frame 1 and fiberglass hood 7 are directly pasted into one body through a special mold. As a whole, a complete driver's cab body 2 is formed.

As shown in Figure 4, the driver's cab car body structure also includes a one-end wall installation assembly 5, a one-end installation assembly 5 is a frame structure, adopts stainless steel material, its shape and installation size and the driver fixedly connected with it The compartment body 2 is matched with the body frame (not shown in the figure) of the vehicle body, and one side of the one-end installation assembly 5 is welded and fixedly connected with the vehicle body frame by spot welding, and the other side of the one-end installation assembly 5 It is the installation surface 6, and the installation surface 6 is fixedly connected with the rear end surface 3 of the driver's cab body 2 through fasteners such as bolts, so that the driver's cab body 2 and the body frame of the vehicle body are fixedly connected together.

In order to effectively avoid installation errors and avoid regrinding of the existing vehicle, the overall flatness of the rear end surface 3 of the cab body 2 is required to be no greater than 3 mm, and the overall flatness of the mounting surface 6 of the one-end mounting component 5 is not greater than 3 mm. It is used to solve the problems of uneven rear end face gap and mismatched profile that often occurred during cab installation in the past. This is the most important function of setting up an end wall installation component 5 to ensure the connection between the installation surface 6 and the cab body 2. The rear end face 3 fits perfectly.

When performing assembly welding of one end wall mounting component 5, it is required to adjust the verticality between one end wall mounting component 5 and the chassis of the vehicle body to be no more than 3mm outward, and the diagonal line not be greater than 4mm. 5. The deviation between the centerline of the upper beam and the centerline of the underframe of the vehicle body is not greater than 2mm.

A plurality of mounting holes (not shown) are set on the rear end face 3 of the driver's cab body 2. The mounting holes are a cross structure formed by two oblong holes intersecting. This structure makes the driver's cab body 2 There is a large adjustment space in both horizontal and vertical directions, and it is easy to install.

A gap of 3-5 mm is reserved between the chassis mounting seat 4 at the bottom of the cab body 2 and the chassis of the vehicle body, preferably a gap of 5 mm is reserved to offset the welding deformation of the side beams of the chassis and the overall structure of the vehicle body. The installation error generated when grouping.

The assembly process steps of the cab body structure are described in detail below:

(1) Assembling and welding the steel skeleton of the driver's cab:

As shown in FIG. 1 , each single piece forming the steel frame is welded into a complete steel frame 1 for the driver's cab by using a special welding tool for the overall assembly of the driver's cab. The driver's cab general assembly welding tool is prior art, no longer described in detail here.

When assembling and welding the steel frame 1, strictly control the width and height of the driver's cab steel frame 1, the profile of each column and beam, and the flatness and installation dimensions of each installation surface; After completion, in order to prevent deformation of the steel frame 1, a plurality of process beams (not shown) are welded on the steel frame 1 for support.

The assembled and welded steel frame 1 is shipped to the glass fiber reinforced plastic factory as a whole by a dedicated transporter.

(2) Paste FRP:

As shown in Figure 2, the special built-in glass fiber reinforced plastic head cover 7 is used to produce the mold when the glass fiber reinforced plastic is pasted. A complete cab body 2.

During this process, it is necessary to detect that the gap between the steel frame 1 and the mold meets the design requirements, and to align the center line of the steel frame 1 and the mold to ensure that the rear end surface 3 and the chassis of the driver's cab body 2 are pasted. The flatness and installation dimensions of the mounting seat 4 can reduce installation errors in subsequent processes.

(3) Assembling and welding one end wall installation component:

As shown in FIG. 4 , an end wall installation component 5 is the same as the steel framework 1 , and is also formed by welding together a plurality of single pieces.

When assembling and welding one end wall mounting assembly 5, special tooling is used to control the width, height, diagonal difference and most importantly the flatness of the mounting surface 6 of one end wall mounting assembly 5.

At the same time, after the assembly welding is completed, in order to ensure that one end wall installation component 5 is not deformed, a plurality of process beams are welded for support, and finally it is shipped to the tire position of the general assembly process of the car body by special transport.

(4) Assemble with the car body frame:

First, one side of the end wall mounting assembly 5 is fixedly connected to the body frame of the vehicle body by spot welding.

Then, the installation surface 6 of the end wall installation assembly 5 is fixedly connected with the rear end surface 3 of the complete driver's cab body 2 after pasting the glass fiber reinforced plastics by a plurality of bolts, and the bolts pass through the rear end surface 3 during installation. The installation hole, and the adjustment of the installation position in the vertical and horizontal directions.

The underframe mounting seat 4 is also fixedly connected together with the underframe of the vehicle body and the side beam of the underframe by bolts.

Remove the process beams in the steel skeleton 3 and one end wall installation assembly 5 in the above-mentioned process.

Finally, the driver's cab vehicle body 2 and the vehicle body frame are fixedly connected together to complete the assembly of the driver's cab vehicle body 2 .

As mentioned above, a similar technical solution can be derived in combination with the solutions presented in the drawings and the embodiments. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the utility model still belong to the scope of the technical solution of the utility model.

Claims (9)

1. corrosion-resistant steel subway driver's cab body construction, comprise a driver's cab steel frame and a glass-felt plastic head-shield, it is characterized in that: described driver's cab steel frame and glass-felt plastic head-shield directly paste as a whole, form complete driver's cab car body, this body construction also comprises a headwall installation component, described driver's cab car body is captiveed joint with a headwall installation component, and a described headwall installation component is captiveed joint with the vehicle body frame of vehicle body again.

2. corrosion-resistant steel subway driver's cab body construction according to claim 1, it is characterized in that: the integral planar degree of described driver's cab car body aft end face is not more than 3mm.

3. corrosion-resistant steel subway driver's cab body construction according to claim 2 is characterized in that: on the described driver's cab car body aft end face a plurality of mounting holes are set.

4. corrosion-resistant steel subway driver's cab body construction according to claim 3 is characterized in that: described mounting hole is two cross structures that the slotted holes intersection is formed.

5. corrosion-resistant steel subway driver's cab body construction according to claim 2 is characterized in that: the gap that is reserved with 3-5mm between underframe mount pad bottom the described driver's cab car body and car body underframe.

6. corrosion-resistant steel subway driver's cab body construction according to claim 1, it is characterized in that: a described end installation component is a framed structure, its shape is complementary with the driver's cab car body and the vehicle body frame of captiveing joint with it with installation dimension, the one side of a described end installation component is captiveed joint with described vehicle body frame welding, and another side is the attachment face of captiveing joint by fastener with the aft end face of described driver's cab car body.

7. corrosion-resistant steel subway driver's cab body construction according to claim 6 is characterized in that: the integral planar degree of the attachment face of a described end installation component is not more than 3mm.

8. corrosion-resistant steel subway driver's cab body construction according to claim 6 is characterized in that: the squareness of a described end installation component and car body underframe outwards is not more than 3mm, and diagonal line is not more than 4mm.

9. corrosion-resistant steel subway driver's cab body construction according to claim 6 is characterized in that: the entablatrance line of centers and the car body underframe centre deviation of a described end installation component are not more than 2mm.

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