WO2018036036A1

WO2018036036A1 - Mounting structure and mounting method for cab bow cap

Info

Publication number: WO2018036036A1
Application number: PCT/CN2016/110690
Authority: WO
Inventors: 闵阳春; 杨小荣; 金希红; 刘丰芹; 张兴
Original assignee: 中车株洲电力机车有限公司
Priority date: 2016-08-26
Filing date: 2016-12-19
Publication date: 2018-03-01
Also published as: MY201348A; CN106314460A; CN106314460B; SG11201810041PA

Abstract

A mounting structure and a mounting method for a cab bow cap. The mounting structure for a cab bow cap comprises a center positioning structure and a side positioning structure that are disposed between the bow cap (1) and a vehicle body (2). The center positioning structure comprises a bow cap positioning element and a vehicle body positioning element. The vehicle body positioning element and the bow cap positioning element cooperate to perform positioning in the transverse direction of the cab. The side positioning structure comprises multiple positioning holes formed in a mounting surface of the bow cap (1), and comprises positioning plates (5) fixed to a side wall of the vehicle body (2). The positioning plates (5) and the positioning holes in the mounting surface of the bow cap (1) are fixedly connected by means of fasteners, and adjustment elements are disposed between the positioning plates (5) and the positioning holes in the mounting surface of the bow cap (1). The mounting structure for a cab bow cap thoroughly resolves the problem of positioning difficulty in the mounting of the bow cap, and the problem of failure to align molded lines of the bow cap and the vehicle body of a metal structure due to the deformation of the bow cap and the vehicle body of the metal structure, and the problems of long mounting time, rubber layer cracking and the like.

Description

Installation structure and installation method of cab hood

Technical field

The invention relates to a mounting structure and a mounting method of a driver's cab head cover, and is particularly suitable for the head cover installation of a rail vehicle.

Background technique

With the dramatic increase in rail traffic and the increased user requirements for the appearance of the vehicle, the axle load requirements for the vehicle are becoming lighter and the requirements for streamlined surface modeling of the cab are more complicated.

In order to adapt to the above changes, it is difficult to satisfy the driver's cab if it uses all the traditional metal materials. Therefore, it can only be replaced by a glass fiber reinforced plastic or a carbon fiber hood and a metal structure bearing body. However, the problems caused by the use of FRP and carbon fiber hoods are as follows:

First, the hood is difficult to locate when it is installed in cooperation with the metal body. There is currently no solution;

Second, the deformation of the FRP and carbon fiber hood is difficult to control, and the metal structure body is also deformed after welding, which results in the hood and the metal structure body line can not be aligned.

There are two main solutions to this problem: the first is to adjust the misalignment between the hood and the metal structure, but the disadvantage of this method is that there is still a gap between the hood and the body. The height difference has an impact on the aerodynamic performance of the train when the train is running at high speed. The second is to use the struts to correct the sides of the hood, so that the hood is aligned with the body line and then glued, but the glue cures for a long time (about 48h), waiting for the glue layer to fully cure before withdrawing. The effect of the struts is that when the hood is corrected, other processes in the driver's cab cannot be operated, which prolongs the production cycle. At the same time, after the hood is finished, due to the pre-stress, the hood will still rebound after the struts are removed, and the rubber layer is subjected to shear stress for a long time, and there is a risk of cracking. At the same time, the pole adjuster The method can only be used when the size of the hood is smaller than the size of the metal body. If the size of the hood is larger than the size of the metal body, the struts cannot be adjusted.

Summary of the invention

The invention aims to provide a mounting structure and a mounting method for a driver's cab head cover, which can completely solve the problem of positioning when the head cover is installed, and the two types of line pairs caused by the deformation of the head cover and the metal structure body. Qi, long installation time, cracking of the rubber layer and so on.

In order to achieve the above object, the technical solution adopted by the present invention is:

A mounting structure of a cab hood, the structural feature comprising: a central positioning structure and a side positioning structure disposed between the hood and the vehicle body;

The central positioning structure includes a hood positioning member disposed at a head end and a tail end of the hood respectively, and a body positioning member disposed on the vehicle body, the body positioning member and the hood positioning member are coupled to the hood and the vehicle body in a lateral direction of the driver's cab Orientation;

The side positioning structure includes a plurality of positioning holes preset on the hood mounting surface and a plurality of positioning plates having holes formed in the side walls of the vehicle body, the positioning plates corresponding to the hood mounting surface The positioning hole is fixedly connected by a fastener to fix the side wall of the hood and the vehicle body together, and an adjusting component is disposed between the positioning plate and the positioning hole on the mounting surface of the hood for making two hoods The side surfaces are flush with the body.

Thereby, the center positioning restricts the displacement of the head cover in the front-rear direction, and the side positioning restricts the displacement of the head cover in the left-right direction. Among them, the central positioning structure solves the problem of central positioning when the hood is installed, and fixes the positioning hole and the positioning plate by fasteners, thereby solving the problem of side positioning when the hood is installed.

According to an embodiment of the present invention, the present invention can be further optimized, and the following is a technical solution formed after optimization:

In order to better achieve the centering of the head cover, the head cover positioning element and the body positioning element are both disposed along the front and rear sides of the longitudinal centerline of the cab, thereby limiting the displacement of the head cover relative to the front and rear direction of the vehicle body.

In order to ensure positioning accuracy, the hood positioning element and the body positioning element are staggered in a cross arrangement.

According to an embodiment of the invention, the hood positioning element and the body positioning element are locating pins or positioning blocks.

Preferably, the hood mounting surface is pre-embedded with a screw hole plate, and the threaded hole of the screw hole plate forms the positioning hole.

According to an embodiment of the invention, the positioning plate extends upwardly with respect to the vehicle body, the fastener is a bolt, and the screw of the bolt sequentially passes through the hole and the adjusting component of the positioning plate, and is fixed to the positioning hole. Connected. The positioning plate can be welded to the body.

Preferably, the lower surface of the positioning plate is a slope adapted to the lower surface of the hood.

In order to facilitate the addition and subtraction of the adjustment element, the adjustment element is an adjustment pad having a U-shaped slot.

In order to further improve the fixing effect of the hood and the vehicle body, an adhesive layer is disposed between the hood mounting surface and the vehicle body. Thereby, a double fixing structure is formed between the hood and the vehicle body, which completely solves the safety risk brought by the opening of the rubber layer.

Based on the same inventive concept, the present invention also provides a method of installing a cab hood using the cab hood mounting structure, comprising the steps of:

S1, a lifting hood, centrally positioning the hood and the vehicle body through a hood positioning component disposed on the hood and a body positioning component disposed on the vehicle body;

S2, the positioning plate on the side wall of the vehicle body is fixedly connected with the positioning hole on the hood through the fastener;

S3, by adjusting the gap between the side wall of the component body and the hood, so that the two sides of the hood are kept flush with the body;

i. When the lateral dimension of the two sides of the hood is smaller than the lateral dimension of the vehicle body, the two side walls of the hood are topped by increasing the thickness of the adjusting component, and the two sides of the hood are fastened by fasteners when they are flush with the vehicle body. Preferably, the glue is applied between the hood mounting surface and the body after the fastener is fastened;

Ii. When the lateral dimension of the hood is greater than the lateral dimension of the vehicle body, by reducing the thickness of the adjustment pad, the two side walls of the hood are pulled inwardly by fastener fastening until the two sides of the hood are kept with the body Flush; preferably, the two sides of the hood are flush with the body and then glued between the hood mounting surface and the body.

With the above structure, the present invention first positions the center, and secondly positions the two sides.

The central positioning method of the hood is to adopt a positioning block on the front and rear sides of the longitudinal center line of the cab of the metal structure, and the two positioning blocks are staggered and arranged at the same time, and the positioning block is also arranged at the same position before and after the center of the hood, and the positioning blocks are also arranged at the same time. When the hood is hoisted, it can quickly and accurately limit each other through the staggered positioning blocks. The positioning block solves the problem of center positioning when the hood is installed.

Positioning on both sides of the hood: positioning plates are arranged on the hood mounting surfaces on both sides of the metal structure driver's cab, and the positioning plate is provided with holes, and the screw holes are pre-buried at corresponding positions on both sides of the hood, when the hood is installed, The deformation of both sides of the hood can be adjusted by using the positioning plate and the screw plate and the adjustment pad between them. When the size of the sides of the hood is smaller than the size of the metal body, the thickness of the adjusting pad can be increased to make the hoods lie on the sides until the hoods are flush with the metal body; when the hoods are larger than the metal body, the hood can be reduced. Smallly adjust the thickness of the pad, and then pull the sides of the hood inward by tightening the bolt until the sides of the hood are flush with the metal body. This method replaces the original strut adjustment, and also solves the problem that the size of both sides of the hood is larger than the size of the metal body.

Compared with the prior art, the beneficial effects of the present invention are:

1. The positioning block and the positioning plate of the invention have simple structure and high positioning reliability;

2. The hood installation method of the invention is fast, convenient and easy to operate;

3. The hood manufacturing method of the present invention cancels the original struts and does not affect the subsequent operation.

4. The adjustable mounting hood method of the present invention is not only feasible when the size of both sides of the hood is smaller than the size of the metal body, but also when the size of both sides of the hood is larger than the size of the metal body;

5. The hood installation method of the invention avoids the risk of cracking of the glue layer, and at the same time shares the force of the glue layer, so that the hood is safer and more reliable during operation.

DRAWINGS

Figure 1 is a side elevational view of one embodiment of the present invention;

Figure 2 is a plan view of Figure 1;

Figure 3 is a schematic structural view of the lateral positioning of the present invention;

Figure 4 is an outline view of the positioning plate of the present invention;

Figure 5 is an outline view of the adjustment pad of the present invention;

Figure 6 is a view taken along line A of Figure 2;

Figure 7 is a B-direction view of Figure 2 .

In the picture

1-head cover; 2-body; 3-head cover positioning block; 4-body positioning block; 5-body positioning plate; 6-adjusting pad; 7-pre-embedded screw hole plate; 8-bolt;

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present invention and the features in the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left", and "right" appear below, and only indicate the same as the upper, lower, left, and right directions of the drawing itself, and do not limit the structure.

A mounting structure of a cab hood, as shown in Figures 1, 6 and 7, using a central quick positioning structure The center of the row is positioned, that is, the center of the metal structure body 2 is welded to the center of the joint area of the hood 1 to form a positioning block, and the front and rear positioning blocks are staggered along the center line. Similarly, a positioning block as a positioning member is embedded in the center of the joint region of the metal cover body 2 at the front and rear positions of the head cover 1, and the front and rear positioning blocks are arranged opposite to the positioning block on the metal structure along the center line. When the hood 1 is hoisted, the corresponding positioning blocks are constrained to each other, thereby ensuring that the hood 1 is centered with the center of the metal structure body 2.

As shown in Figure 3-5, the two-side positioning structure is such that the positioning plate 5 is evenly arranged on the connection area between the two sides of the metal structure body 2 and the head cover 1 (the number is set as needed), the positioning plate 5 and the metal structure body 2 The welding is fixed to ensure the strength of the positioning plate 5, and the waist plate-shaped hole is opened on the positioning plate 5, so that the head cover 1 can be adjusted up and down and front and rear. A screw hole plate is pre-buried at a position corresponding to the head cover 1, and an adjustment pad of different thickness is disposed between the screw hole plate and the positioning plate 5. The positioning plate 5 and the screw hole plate are connected by bolts. When the lateral dimension of the two sides of the head cover 1 is smaller than the lateral dimension of the metal structure body 2, the sides of the head cover 1 can be externally topped by increasing the thickness of the adjustment pad, and the bolts are tightened after being adjusted, and then the glue is applied. When the lateral dimension of the two sides of the hood 1 is larger than the lateral dimension of the metal structure body 2, the thickness of the adjusting pad can be reduced, and the two sides of the hood 1 can be pulled inward by fastening bolts, and then the glue is adjusted. After the glue is dry, the bolts are not cancelled, and the head cover 1 is also fastened.

As an alternative, the central positioning block of the invention as a positioning element can also be a locating pin.

The above-described embodiments are to be understood as being illustrative only and are not intended to limit the scope of the present invention. Modifications are intended to fall within the scope defined by the appended claims.

Claims

A cab hood mounting structure, characterized by comprising a central positioning structure and a side positioning structure disposed between the head cover (1) and the vehicle body (2);

The central positioning structure includes a hood positioning member disposed at a head end and a tail end of the hood (1), respectively, and a body positioning member disposed on the vehicle body (2), the body positioning member and the hood positioning member are coupled to the hood (1) and the body (2) are positioned in the lateral direction of the cab;

The side positioning structure includes a plurality of positioning holes preset on the mounting surface of the head cover (1) and a plurality of positioning plates (5) fixed to the side walls of the vehicle body (2), the positioning plate ( 5) fixedly connecting the positioning hole of the hood (1) to the mounting surface of the hood (1) by fixing the side wall of the hood (1) and the body (2) together, and in the positioning plate (5) Adjustment elements are arranged between the positioning holes on the mounting surface of the head cover (1) for keeping both side surfaces of the head cover (1) flush with the vehicle body (2).
The cab hood mounting structure according to claim 1, wherein the hood positioning member and the vehicle body locating member are disposed along the front and rear sides of the longitudinal centerline of the cab.
The cab hood mounting structure according to claim 2, wherein the hood positioning member and the vehicle body locating member are staggered in an intersecting arrangement.
A cab hood mounting structure according to any one of claims 1 to 3, wherein the hood positioning member and the body positioning member are positioning pins or positioning blocks.
The mounting structure of the driver's cab head cover according to any one of claims 1 to 3, characterized in that the mounting surface of the head cover (1) is pre-embedded with a screw hole plate (7), and the screw hole plate (7) The threaded holes form the positioning holes.
The cab hood mounting structure according to any one of claims 1 to 3, characterized in that the positioning plate (5) extends upwardly with respect to the vehicle body, and the fastener is a bolt (8), the bolt ( The screw of 8) sequentially passes through the hole and the adjusting element on the positioning plate (5), and is fixed with the positioning hole even.
A cab hood mounting structure according to any one of claims 1 to 3, characterized in that the lower surface of the positioning plate (5) is a slope adapted to the lower surface of the hood (1).
A cab hood mounting structure according to any one of claims 1 - 3, characterized in that the adjusting element is an adjusting pad (6) having a U-shaped slot.
A cab hood mounting structure according to any one of claims 1 to 3, characterized in that an adhesive layer is provided between the head cover (1) mounting surface and the vehicle body (2).
A method for installing a cab hood by using a cab hood mounting structure according to any one of claims 1-8, comprising the steps of:

S1, the lifting head cover (1), centrally positioning the head cover (1) and the vehicle body (2) by a hood positioning component disposed on the head cover (1) and a body positioning component disposed on the vehicle body (2);

S2, the positioning plate (5) on the side wall of the body (2) is fixedly connected with the positioning hole on the head cover (1) through a fastener;

S3, by adjusting the gap between the side wall of the component body (2) and the hood (1), so that the two sides of the hood (1) are flush with the body;

i. When the lateral dimension of the two sides of the hood (1) is smaller than the lateral dimension of the body (2), the two side walls of the hood (1) are topped by increasing the thickness of the adjusting element, and both sides of the hood (1) When the surface is flush with the body, it is fastened by fasteners; preferably, after the fastener is fastened, glue is applied between the mounting surface of the hood (1) and the body (2);

Ii. When the lateral dimension of the hood (1) is larger than the lateral dimension of the vehicle body (2), by reducing the thickness of the adjustment pad, the two side walls of the hood are pulled inwardly by fastener fastening until the hood ( 1) Both sides of the surface are kept flush with the body; preferably, the sides of the head cover (1) are flush with the body and then glued between the mounting surface of the head cover (1) and the body (2).