阅读说明：本技术 一种司机室头罩结构、轨道车辆及制备工艺 (Cab hood structure, railway vehicle and preparation process ) 是由 吴佩芳 释加才让 丁存光 李发长 于勇智 刘家鑫 肖云健 惠鹏 于 2020-05-21 设计创作，主要内容包括：本发明涉及车辆工程技术领域,具体涉及一种司机室头罩结构、轨道车辆及制备工艺,其中头罩结构包括至少两块罩板,所述罩板至少采用树脂制成,任意相邻两块所述罩板之间至少通过粘接剂连接,所述粘接剂为高分子聚合物粘接剂；所有所述罩板围合形成头罩,所述头罩具有至少一个一开口的头罩腔。此结构的司机室头罩结构中,通过将头罩结构分成至少两块罩板,且两块罩板分体成型后,在进行固定头罩时,利用高分子聚合物粘接剂作为粘接剂将相邻的两块罩板进行粘接固定,其安全性能能够达到将司机室头罩应用到轨道上进行固定安装与实际使用时所需求的安全性能标准,实现与将一体式成型罩板应用到轨道上进行固定安装与实际使用的安全性能相同的效果。(The invention relates to the technical field of vehicle engineering, in particular to a cab hood structure, a rail vehicle and a preparation process, wherein the hood structure comprises at least two cover plates, the cover plates are at least made of resin, any two adjacent cover plates are at least connected through an adhesive, and the adhesive is a high-molecular polymer adhesive; all the cover plates are enclosed to form a hood, and the hood is provided with at least one open hood cavity. In the cab hood structure of this structure, through dividing into two piece at least cover plates with the hood structure, and two cover plate components of a whole that can function independently shaping backs, when fixing the hood, utilize the high molecular polymer adhesive to bond two adjacent cover plates fixedly as the adhesive, its security performance can reach and carry out the required security performance standard when fixed mounting and in-service use on using the track with the cab hood, realize and carry out the same effect of fixed mounting and in-service use security performance on using the track with integral type shaping cover plate.)

1. The cab hood structure is characterized by comprising at least two cover plates, wherein the cover plates are at least made of resin, any two adjacent cover plates are at least connected through an adhesive, and the adhesive is a high-molecular polymer adhesive; all the cover plates are enclosed to form the hood.

2. The cab hood structure according to claim 1, wherein the hood plate is three, the three hood plates are a main hood plate (2), and a left hood plate (3) and a right hood plate (4) which are arranged on both sides of the main hood plate (2);

the main cover plate (2), the left cover plate (3) and the right cover plate (4) at least enclose a first opening (5) at the tail parts of the main cover plate, the left cover plate and the right cover plate.

3. Cab hood structure according to claim 2, wherein the main hood panel (2) is a curved hood panel having a top cover,

left side cover plate (3) with right side cover plate (4) include plane portion (6), and the shaping is in curved surface portion (7) of plane portion (6) one side, curved surface portion (7) are adjacent and smooth transition with the edge of curved surface cover plate.

4. The cab hood structure according to claim 2 or 3, wherein the high polymer adhesive is an epoxy adhesive or a polyurethane adhesive.

5. The cab hood structure according to any one of claims 2 to 4, wherein two adjacent hood panels are further fixedly connected by at least one fastener, and an outer periphery of the fastener is surrounded by the adhesive.

6. The cab hood structure according to claim 5, wherein the fastener is a rivet.

7. Cab hood structure according to any of claims 2-6, characterized in that the head of the hood is provided with a through opening (8), said through opening (8) being arranged opposite to said first opening (5);

hood structure still including establishing installation roof beam (9) on opening (8), be equipped with on installation roof beam (9) with opening (8) syntropy extends's installing port (10), installing port (10) are used for supplying the door body to install.

8. Cab hood structure according to claim 7, characterized in that the mounting beam (9) is "inverted" and is shaped on the inside of the edge of the through opening (8).

9. The cab hood structure according to any one of claims 1 to 8, wherein the cover plate is a composite structure including at least one carbon fiber layer, and a body filled in pores of the carbon fiber layer and wrapped outside all the carbon fiber layers, the body being made of resin.

10. The cab hood structure of claim 9, further comprising at least one layer of toughening layers, the toughening layers and the carbon fiber layers being alternately laid down and wrapped by the body.

11. A rail vehicle, comprising:

a chassis;

the cab hood structure of any one of claims 1-10, a bottom of the cab hood structure being mounted on the chassis.

12. A preparation process of a cab hood structure is characterized by comprising the following steps:

s1: respectively preparing each cover plate by adopting an injection molding process;

s2: any two adjacent cover plates are bonded and fixed by adopting an adhesive to form a hood structure with a hood cavity (1);

wherein, the adhesive is a high molecular polymer adhesive, and the cover plate is at least made of resin materials.

13. The process for preparing a headgear structure according to claim 12, further comprising, prior to step S1

S0：

Firstly, laying a carbon fiber layer on the inner wall surface of a lower die of the die, and then closing the die to form a cavity between the carbon fiber layers on the upper die and the lower die;

in the step S1, a resin material is injected into the cavity.

14. The process for preparing a hood structure according to claim 13, wherein, in the step S0,

and alternately paving toughening layers and carbon fiber layers on the inner wall surface of the lower die of the die.

15. A process for preparing a hood structure according to any one of claims 12-14, further comprising the following step after the step of S2:

s3: and fixedly connecting the end parts of the two adjacent cover plates which are bonded with each other by using at least one fastener.

Technical Field

The invention relates to the technical field of vehicle engineering, in particular to a cab hood structure, a rail vehicle and a preparation process.

Background

In recent years, the urban rail vehicle pays attention to each country by the characteristics of rapidness, punctuality, safety and convenience, and is greatly popularized and developed. As an important core control part of an urban rail vehicle, the design and production of a cab gradually matures, a complete structural system is gradually formed through development and improvement, the cab space is used as an independent system, drivers and passengers need to be ensured to complete driving more comfortably and effectively, equipment arrangement in the cab needs to meet relevant requirements of industrial standards, and meanwhile, the basic principle of ergonomics is combined.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is the defects of high difficulty in forming the cab hood and high rejection rate in the prior art.

Therefore, the invention provides a cab hood structure which comprises at least two cover plates, wherein the cover plates are at least made of resin, any two adjacent cover plates are at least connected through an adhesive, and the adhesive is a high-molecular polymer adhesive; all the cover plates are enclosed to form the hood.

Optionally, in the cab hood structure, three cover plates are provided, where the three cover plates are a main cover plate, and a left cover plate and a right cover plate are provided on two sides of the main cover plate;

the main cover plate, the left cover plate and the right cover plate at least enclose a first opening at the tail parts of the main cover plate, the left cover plate and the right cover plate.

Optionally, in the cab hood structure, the main hood panel is a curved hood panel with a top cover,

the left side cover plate with the right side cover plate includes plane portion, and the shaping is in the curved surface portion of plane portion one side, the edge of curved surface portion and curved surface cover plate is adjacent and smooth transition.

Optionally, in the cab hood structure, the polymer adhesive is an epoxy adhesive or a polyurethane adhesive.

Optionally, in the cab hood structure, two adjacent cover plates are further fixedly connected by at least one fastener, and the periphery of the fastener is surrounded by the adhesive.

Optionally, in the cab hood structure, the fastener is a rivet.

Optionally, in the cab hood structure, a head of the hood is provided with a through opening, and the through opening is arranged opposite to the first opening;

the hood structure is characterized by further comprising an installation beam arranged on the opening, wherein an installation opening extending in the same direction as the opening is formed in the installation beam, and the installation opening is used for installing a door body.

Optionally, in the cab hood structure, the mounting beam is shaped like a Chinese character ji and is formed on an inner side of an edge of the through opening.

Optionally, in the cab hood structure, the cover plate is a composite structure, the composite structure includes at least one carbon fiber layer, and a body filled in the hole of the carbon fiber layer and wrapped around all the carbon fiber layers, and the body is made of resin.

Optionally, in the cab hood structure, the composite structure further includes at least one toughening layer, and the toughening layer and the carbon fiber layer are alternately laid and arranged and are wrapped by the body.

A rail vehicle, comprising:

a chassis;

the cab hood structure as described above, wherein the bottom of the cab hood structure is mounted on the underframe.

A preparation process of a cab hood structure comprises the following steps:

s1: respectively preparing each cover plate by adopting an injection molding process;

s2: adopting an adhesive to bond and fix any two adjacent cover plates so as to form a hood structure with a hood cavity;

wherein, the adhesive is a high molecular polymer adhesive, and the cover plate is at least made of resin materials.

Optionally, the process for preparing the hood structure further comprises before the step of S1

S0：

Firstly, laying a carbon fiber layer on the inner wall surface of a lower die of the die, and then closing the die to form a cavity between the carbon fiber layers on the upper die and the lower die;

in the step S1, a resin material is injected into the cavity.

Alternatively, in the above process for manufacturing the hood structure, in the step S0,

and alternately paving toughening layers and carbon fiber layers on the inner wall surface of the lower die of the die.

Optionally, in the process for preparing the head covering structure, after the step S2, the method further includes the following steps:

s3: and fixedly connecting the end parts of the two adjacent cover plates which are bonded with each other by using at least one fastener.

The technical scheme of the invention has the following advantages:

1. the invention provides a cab hood structure, which comprises at least two cover plates, wherein the cover plates are at least made of resin, any two adjacent cover plates are at least connected through an adhesive, and the adhesive is a high-molecular polymer adhesive; all the cover plates are enclosed to form the hood.

In the cab hood structure with the structure, the hood structure is divided into at least two hood plates, after the two hood plates are formed in a split mode, when two adjacent hood plates are fixed, the high molecular polymer adhesive is used for bonding and fixing the two adjacent hood plates by taking the high molecular polymer adhesive as the adhesive, wherein when the adhesive is coated on bonding surfaces of the adjacent hood plates, adhesive molecules can penetrate into gaps of the hood plates, the hood plates are made of resin, after the adhesive is fixed between the bonding surfaces of the hood plates made of the resin, a firm joint can be formed between the adjacent hood plates, the fixed connection between the hood plates formed in a split mode is completed, and when the hood plates are applied to a rail for fixed mounting and practical use, the safety performance of the hood plates can reach the safety performance standard required when the cab is applied to the rail for fixed mounting and practical use, the hood structure is formed in a split mode, if one or two hood plates have defects in the injection molding process, only the hood plate with the defects needs to be replaced, the whole hood structure does not need to be scrapped, the manufacturing cost and the rejection rate of finished products of the hood are effectively reduced, the yield is improved, and the problem of high injection molding difficulty caused by large depth of the hood structure in the front-back direction is effectively solved; further, the original integrally formed cover plate is divided into two or more cover plates for forming, and the depth of each cover plate head cavity after being separated is small relative to the depth of the head cavity of the integrally formed cover plate, so that the forming difficulty of the cover plate is reduced relative to the forming difficulty of the cover plate of an integrally formed head cover structure, and the rejection rate is effectively reduced.

2. In the cab hood structure provided by the invention, the number of the cover plates is three, the three cover plates are respectively a main cover plate, and a left cover plate and a right cover plate which are arranged on two sides of the main cover plate; the main cover plate, the left cover plate and the right cover plate at least enclose a first opening at the tail parts of the main cover plate, the left cover plate and the right cover plate.

In the cab hood structure with the structure, the hood plates are divided into the main hood plate, the left hood plate and the right hood plate, the three hood plates are enclosed to form the hood structure, the hood structure formed by the three hood plates is more practical, and the areas of the three hood plates are suitable for the operation that workers assemble the hood plates and install the hood plates on the underframe.

3. In the cab hood structure provided by the invention, two adjacent cover plates are fixedly connected through at least one fastener, and the periphery of the fastener is surrounded by the adhesive.

In the cab hood structure with the structure, after the cover plates are bonded by the adhesive, the fastening pieces are arranged between the two adjacent cover plates for fixed connection, so that the fixing strength between the two cover plates is improved, and the hood structure formed by the cover plates is ensured to meet the use safety performance.

4. In the cab hood structure provided by the invention, the head part of the hood is provided with the through hole, and the through hole is arranged opposite to the first opening; the hood structure is characterized by further comprising an installation beam arranged on the opening, wherein an installation opening extending in the same direction as the opening is formed in the installation beam, and the installation opening is used for installing a door body.

In the cab hood structure of this structure, set up the installation roof beam on the opening, locate the escape door on this installation roof beam, be convenient for install the escape door after on the installation roof beam, combine as an organic whole with the hood, the bottom of installation roof beam links together with the chassis, through this structure, the welding step of installation roof beam and automobile body steel construction has been reduced, the potential safety hazard has been avoided, and can make the escape door can install before the chassis in hood structure and can install structurally at the hood, then install on the chassis as whole part together with the hood structure, the staff's of being convenient for operation.

5. The invention provides a preparation process of a cab hood structure, which comprises the following steps: s1: respectively preparing each cover plate by adopting an injection molding process; s2: adopting an adhesive to bond and fix any two adjacent cover plates so as to form a hood structure with a hood cavity; wherein, the adhesive is a high molecular polymer adhesive, and the cover plate is at least made of resin materials.

In the manufacturing process of the cab hood structure, the hood structure is divided into at least two hood plates and is formed in a split mode, in the forming process, the depth of each hood plate in the front-back direction of a hood cavity is lower than the depth of an integrally formed hood in the front-back direction of the hood cavity, the difficulty of injection molding of the hood plates can be effectively reduced, the hood plates are fixedly bonded by adopting an adhesive processing procedure, when an adhesive is coated on the bonding surfaces of adjacent hood plates, adhesive molecules can penetrate into gaps of the hood plates, the hood plates are made of resin materials, after the adhesive is fixed between the bonding surfaces of the resin material hood plates, firm joints can be formed between the adjacent hood plates, the safety performance of the hood plates can meet the safety performance standard required when the cab hood is fixedly mounted on a rail and is actually used, and the service life of the cab hood plate can also meet the use requirement, make the cover plate structure of hood accord with the security performance requirement, hood structure after the shaping, its product quality is stable good, size precision is high, and because the cover plate adopts resin material and adhesive to adopt the high molecular polymer adhesive, adopt to carry out resin injection again after the compound die simultaneously, avoid volatilizing in the air and being inhaled the internal condition by the staff in the VOC that produces in the shaping process, it leads to VOC to volatilize in the air to have overcome traditional hand and paste the technology with resin exposure shaping in the air, the problem of production process non-environmental protection, make the VOC that the production process produced discharge great reduction, the pollution to the environment has been reduced, and the health to the staff has played the guard action.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a hood construction provided in a first embodiment of the present invention;

FIG. 2 is a schematic structural view of a hood chamber surrounded by the main, left and right hood panels shown in FIG. 1;

FIG. 3 is a schematic view of the left shroud shown in FIG. 1;

FIG. 4 is a schematic structural view of the mounting beam shown in FIG. 1;

FIG. 5 is a schematic view of the location of the ports on the main shield shown in FIG. 1;

description of reference numerals:

1-head cover cavity; 2-a main cover plate; 3-left cover plate; 4-right cover plate; 5-a first opening; 6-plane part; 7-curved face; 8-through opening; 9-mounting a beam; 10-mounting port.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.