阅读说明：本技术 一种设备舱、设备舱的上边梁及其成型工艺 (Equipment cabin, upper edge beam of equipment cabin and forming process of upper edge beam ) 是由 田爱琴 陈东方 苏超 王刚 肖鹏 于 2021-01-07 设计创作，主要内容包括：本发明公开了一种设备舱、设备舱的上边梁及其成型工艺,该上边梁包括中空管体和延伸段,中空管体由多层织物通过铺层工艺形成,并且各织物层通过胶层形成一体,中空管体的最内侧织物层围合形成环形结构,至少形成所述中空管体外表面的最外侧织物层部分向外延伸形成所述延伸段；本发明中设备舱的上边梁通过铺层工艺形成,在铺层过程中至少形成上边梁中空管体的外壁的织物层部分向外延伸形成延伸段,该延伸段能够满足上边梁与设备舱相应部件的配合装配。通过铺层工艺形成的上边梁可以通过选取合适的材料成型,能够降低上边梁重量,在保证上边梁具有足够抗弯和抗扭性能的前提下,本发明中复合材料铺层形成的上边梁重量要降低至少百分之三十。(The invention discloses an equipment cabin, an upper edge beam of the equipment cabin and a forming process of the upper edge beam, wherein the upper edge beam comprises a hollow pipe body and an extension section, the hollow pipe body is formed by multilayer fabrics through a layering process, all fabric layers are integrated through glue layers, the innermost fabric layer of the hollow pipe body is enclosed to form an annular structure, and at least the outermost fabric layer part forming the outer surface of the hollow pipe body extends outwards to form the extension section; the upper edge beam of the equipment compartment is formed through a layering process, and the fabric layer part at least forming the outer wall of the hollow pipe body of the upper edge beam extends outwards to form an extension section in the layering process, wherein the extension section can meet the matching assembly of the upper edge beam and corresponding parts of the equipment compartment. The roof side rail formed by the layering process can be formed by selecting proper materials, the weight of the roof side rail can be reduced, and on the premise that the roof side rail has enough bending resistance and torsion resistance, the weight of the roof side rail formed by the composite material layering in the invention is reduced by at least thirty percent.)

1. The upper edge beam of the equipment compartment is characterized by comprising a hollow pipe body (10) and an extension section (12) protruding outwards from the outer surface of the hollow pipe body (10), wherein the extension section (12) extends along the longitudinal direction of the hollow pipe body (10), the hollow pipe body (10) is formed by multiple layers of fabrics through a layering process, the fabric layers are integrated through a glue layer, the innermost fabric layer of the hollow pipe body (10) surrounds to form an annular structure, and at least the outermost fabric layer part forming the outer surface of the hollow pipe body (10) extends outwards to form the extension section (12).

2. The roof side rail of an equipment compartment according to claim 1, characterised in that the hollow tubular body (10) comprises a first lay-up (11) comprising a plurality of nested closed loop structures laid one behind the other and a second lay-up (14) laid on the outside of the first lay-up (11), and each fabric layer forming the second lay-up (14) extends outwards to form the extension (12).

3. The roof side rail of an equipment shelter according to claim 2, characterized in that each closed loop structure of the first deck part (11) comprises at least two fabric sections, and a longitudinally extending first fiber thread (15) is arranged between adjacent fabric sections, and each fabric section and each first fiber thread (15) enclose to form a complete closed loop structure.

4. The upper edge beam of the equipment compartment as claimed in claim 2, wherein the innermost fabric of the second lay-up (14) extends outwards to form a root area of the extension (12) and the outer wall of the first lay-up, the root area being provided with at least one second fibre thread (13) extending in the longitudinal direction, each second fibre thread (13) being integrated with the first and second lay-up (14) by means of a bonding glue filled in the root area.

5. The roof side rail of an equipment shelter according to claim 2, wherein the ring-shaped structure is a polygon, the extension section (12) is formed at one corner of the polygon, the cross section of the extension section (12) comprises a straight line section, one side wall of the extension section (12) is positioned on the same plane with the outer wall of the hollow pipe body (10) adjacent to the extension section, and the other side wall of the extension section (12) is connected with the outer wall of the hollow pipe body (10) adjacent to the extension section through a turning section.

6. The equipment compartment roof side rail of claim 1, wherein the fabric layer comprises one or a combination of multiaxial carbon fiber fabric, bidirectional twill carbon fiber fabric, textured carbon fiber fabric, or ± 45 ° carbon fiber fabric.

7. An equipment compartment roof side rail according to any one of claims 2-6, characterised in that the layers of fabric in the second lay-up (14) are each one-piece.

8. A method of forming a roof side rail for an equipment compartment according to any one of claims 1 to 7, characterised in that the method includes an internal lay-up step and an external lay-up step, the external lay-up step being located downstream of the internal lay-up step,

the internal layering process comprises the following steps: when laying, under the action of traction force, a first part of fabric firstly passes through a first preforming station and then enters a first gum dipping station for gum dipping, and the gum dipped fabric is extruded and laid on the surface of a core mold to form an annular structure;

the external layering process comprises the following steps: and the first part of fabric laid on the surface of the core mold is dragged to enter a second impregnation station, meanwhile, a preset tension is applied to the second part of fabric, the second part of fabric is dragged to enter the second impregnation station after passing through a second preforming station for impregnation, meanwhile, the second part of fabric is laid on the surface of the first part of fabric, and the impregnated first part of fabric and the impregnated second part of fabric are extruded again under the action of the traction force to form a whole and enter the lower process.

9. The method of forming a roof side rail for an equipment compartment of claim 8, wherein the first portion of fabric comprises at least two sets, and the internal layering process comprises: when the fabric is laid, under the action of traction force, a first group of first partial fabrics enter a first group of first gum dipping stations through a first group of first preforming stations for gum dipping, and the gum dipped fabrics are extruded and laid on the surface of a core mold to form an annular structure; when the first group of first partial fabrics laid on the surface of the core mold enters a second group of first glue dipping stations, the second group of first partial fabrics are molded through a second group of first preforming stations, then enter a second group of first glue dipping stations for glue dipping, are laid on the surface of the first group of first partial fabrics and form an annular structure;

alternatively, the second portion of fabric comprises a first set of second portion of fabric and a second set of second portion of fabric, and the external layering process comprises: and applying a preset tension to a first group of second partial fabrics, drawing the first group of second partial fabrics to enter a first group of second preforming stations, then entering a first group of second glue dipping stations for glue dipping, extruding the glued first partial fabrics and the first group of second partial fabrics into a whole under the action of the traction force, forming the first partial fabrics by a second group of second preforming stations, then entering a second group of second glue dipping stations for glue dipping, simultaneously applying a preset tension to the second group of second partial fabrics, drawing the second group of second partial fabrics by the second group of second preforming stations, entering the second group of second glue dipping stations for glue dipping, positioning the second group of second partial fabrics at the periphery of the first group of second partial fabrics, and simultaneously extruding the second partial fabrics out of the second group of second glue dipping stations to form a whole.

10. An equipment bay comprising a transom and a roof side rail, wherein the roof side rail is a roof side rail of an equipment bay according to any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of parts of railway vehicles, in particular to an equipment compartment, an upper edge beam of the equipment compartment and a forming process of the upper edge beam.

Background

Rail vehicles have become an important way to alleviate congestion on highways, water and air traffic in industrially developed countries, and the development of high-speed trains has been an important goal for future train development in many countries of the world, including china. At present, high speed, safety and comfort become the key points of the technical development of the high-speed railway at present, and the aims of reducing the dead weight of a motor train unit train and improving the speed of the motor train unit train are the targets of the development of the railway industry.

The equipment cabin is an important component for forming the railway vehicle and is mainly arranged at the lower part of a carriage, a lower side beam structure of the equipment cabin is connected with structures such as a bent beam and a cross beam, the number of connecting matching surfaces is large, and the structure is relatively complex correspondingly. At present, the rocker is usually an aluminum alloy part, and the rocker is complex in structure and high in weight.

Therefore, how to optimize the rocker structure of the equipment compartment, and reduce the weight of the equipment compartment while satisfying the requirement of matching and connecting with the peripheral components is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a lower side beam of a light equipment compartment on the premise of ensuring that the upper side beam has enough bending resistance and torsion resistance. The invention also provides a forming process and an equipment cabin of the lower edge beam.

The invention provides an upper edge beam of an equipment cabin, which comprises a hollow pipe body and an extension section protruding outwards from the outer surface of the hollow pipe body, wherein the extension section extends along the longitudinal direction of the hollow pipe body, the hollow pipe body is formed by multiple layers of fabrics through a layering process, all fabric layers are integrated through glue layers, the innermost fabric layer of the hollow pipe body is encircled to form an annular structure, and at least the outermost fabric layer part forming the outer surface of the hollow pipe body extends outwards to form the extension section.

The upper edge beam of the equipment compartment is formed through a layering process, and the fabric layer part at least forming the outer wall of the hollow pipe body of the upper edge beam extends outwards to form an extension section in the layering process, wherein the extension section can meet the matching assembly of the upper edge beam and corresponding parts of the equipment compartment. Meanwhile, the structure of the hollow pipe body can meet the assembly requirements of other parts. The roof side rail formed by the layering process can be formed by selecting proper materials, the weight of the roof side rail can be reduced, and compared with the existing aluminum alloy roof side rail, the weight of the roof side rail formed by the composite material layering in the invention is reduced by at least thirty percent on the premise of ensuring that the roof side rail has enough bending resistance and torsion resistance. In addition, in the roof side rail having a plurality of mating surfaces, the formation process of each mating surface can be reduced by the mat.

Optionally, the hollow pipe body includes a first laying portion and a second laying portion, the first laying portion includes a plurality of sequentially laid nested closed loop structures, the second laying portion is laid outside the first laying portion, and each fabric layer forming the second laying portion extends outward to form the extending section.

Optionally, each closed loop structure of the first lay-up portion includes at least two fabric sections, first fibers extending longitudinally are further disposed between adjacent fabric sections, and each fabric section and each first fiber form a complete closed loop structure in an enclosing manner.

Optionally, the innermost fabric of the second ply part extends outwards to form a root region of the extension section and the outer wall of the first ply part, the root region is provided with at least one second fiber filament extending along the longitudinal direction, and each second fiber filament is integrated with the first ply part and the second ply part through the bonding glue filled in the root region.

Optionally, the annular structure is a polygon, the extension section is formed at one corner of the polygon, the cross section of the extension section includes a straight line segment, one side wall of the extension section and the outer wall of the hollow pipe body adjacent to the side wall are located on the same plane, and the other side wall of the extension section is connected to the outer wall of the hollow pipe body adjacent to the side wall of the extension section through a turning section.

Optionally, the fabric layer includes one or a combination of multiaxial carbon fiber fabric, bidirectional twill carbon fiber fabric, patterned carbon fiber fabric or ± 45 ° carbon fiber fabric.

Optionally, each layer of fabric in the second ply portion is a whole piece.

In addition, the invention provides a molding method of the roof side rail of the equipment cabin, which comprises an internal layering process and an external layering process, wherein the external layering process is positioned at the downstream of the internal layering process,

the internal layering process comprises the following steps: when laying, under the action of traction force, a first part of fabric firstly passes through a first preforming station and then enters a first gum dipping station for gum dipping, and the gum dipped fabric is extruded and laid on the surface of a core mold to form an annular structure;

the external layering process comprises the following steps: and the first part of fabric laid on the surface of the core mold is dragged to enter a second impregnation station, meanwhile, a preset tension is applied to the second part of fabric, the second part of fabric is dragged to enter the second impregnation station after passing through a second preforming station for impregnation, meanwhile, the second part of fabric is laid on the surface of the first part of fabric, and the impregnated first part of fabric and the impregnated second part of fabric are extruded again under the action of the traction force to form a whole and enter the lower process.

Optionally, the first part of the fabric comprises at least two groups, and the internal layering process specifically comprises: when the fabric is laid, under the action of traction force, a first group of first partial fabrics enter a first group of first gum dipping stations for gum dipping after passing through a first group of first preforming stations, and the gum dipped fabrics are extruded and laid on the surface of a core mold to form an annular structure; when the first group of first partial fabrics laid on the surface of the core mold enters a second group of first glue dipping stations, the second group of first partial fabrics are molded through a second group of first preforming stations, then enter a second group of first glue dipping stations for glue dipping, are laid on the surface of the first group of first partial fabrics and form an annular structure;

alternatively, the second portion of fabric comprises a first set of second portion of fabric and a second set of second portion of fabric, and the external layering process comprises: and applying a preset tension to a first group of second partial fabrics, drawing the first group of second partial fabrics to enter a first group of second preforming stations, then entering a first group of second glue dipping stations for glue dipping, extruding the glued first partial fabrics and the first group of second partial fabrics into a whole under the action of the traction force, entering a second group of second glue dipping stations for glue dipping through a second stage of second preforming stations, simultaneously applying a preset tension to the second group of second partial fabrics, forming the second group of second partial fabrics through the second group of second preforming stations, then entering the second group of second glue dipping stations for glue dipping, positioning the second group of second partial fabrics at the periphery of the first group of second partial fabrics, and simultaneously extruding the second partial fabrics out of the second group of second glue dipping stations to form a whole.

In addition, the invention also provides an equipment cabin, which comprises a cross beam and a roof side rail, wherein the roof side rail is the roof side rail of any one of the equipment cabins.

The forming method is implemented on the basis of the equipment cabin, and the equipment cabin comprises the upper edge beam, so the forming method and the equipment cabin comprise the technical effects of the upper edge beam.

Drawings

FIG. 1 is a schematic structural view of an upper edge beam of an equipment bay in accordance with an embodiment of the present invention;

FIG. 2 is a three-dimensional schematic view of an equipment bay roof side rail according to one embodiment of the present disclosure;

fig. 3 is a schematic layout of preforming and dipping in the roof side rail process of the equipment compartment according to an embodiment of the present invention.

Wherein, in fig. 1 to 3:

10-a hollow pipe body, 101-an outer wall, 11-a first laying part, 12-an extension section, 121-a side wall, 13-a second fiber yarn, 14-a second laying part and 15-a first fiber yarn; 31-a first group of first glue dipping stations, 32-a second group of first glue dipping stations, 33-a first group of second glue dipping stations, 34-a second group of second glue dipping stations, 21-a first group of first preforming stations, 22-a second group of first preforming stations, 41-a first felt guide, 42-a second felt guide, 50-a core mold and 60-a framework.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 3, the present invention provides an equipment compartment roof side rail, which includes a hollow tube 10 and an extension 12 protruding outward from an outer surface of the hollow tube 10, wherein a length of the extension 12 is appropriately set according to an environment of a vehicle in which the roof side rail is used, for example, a length of the extension 12 protruding out of the surface of the hollow tube 10 is selected according to a length of the extension 12 matching with a corresponding component of the equipment compartment. The extension 12 extends in the longitudinal direction of the hollow tubular body 10. The outer wall of the hollow tubular body 10 may include a plurality of mating surfaces for mating engagement with a camber beam, a cross beam, or other component of the equipment bay in a connecting mating relationship with the roof side rail.

The hollow pipe 10 is formed by a layering process of multiple layers of fabrics, the fabric layers are integrated by a glue layer, and the glue layer between the fabric layers can be formed by glue dipping, glue coating or glue spraying. The innermost fabric layer of the hollow tube 10 surrounds to form a ring structure, and at least the outermost fabric layer part forming the outer surface of the hollow tube 10 extends outwards to form an extension 12.

It should be noted that the side close to the central axis of the hollow tubular body 10 is defined as inner, and correspondingly, the side away from the axis close to the surface is defined as outer.

The cross section of the roof side rail in the invention is approximately Q-shaped.

The upper edge beam of the equipment compartment is formed through a layering process, at least the fabric layer part forming the outer wall of the hollow pipe body 10 of the upper edge beam extends outwards to form an extension section 12 in the layering process, and the extension section 12 can meet the matching assembly of the upper edge beam and corresponding parts of the equipment compartment. Meanwhile, the structure of the hollow pipe body 10 can meet the assembly requirements of other components. The roof side rail formed by the layering process can be formed by selecting proper materials, the weight of the roof side rail can be reduced, and compared with the existing aluminum alloy roof side rail, the weight of the roof side rail formed by the composite material layering in the invention is reduced by at least thirty percent on the premise of ensuring that the roof side rail has enough bending resistance and torsion resistance. In addition, in the roof side rail having a plurality of mating surfaces, the formation process of each mating surface can be reduced by the mat.

In one embodiment, the hollow pipe 10 comprises a first layer portion 11 and a second layer portion 14, and the first layer portion 11 comprises a plurality of closed loop structures which are sequentially nested, that is, the closed loop structures are sequentially nested, that is, the fabric layers forming the closed loop structures are sequentially laid on the inner layer surface. The number of the annular structure layers of the first paving part 11 can be set according to the use requirement. The second lay-up 14 is laid on the outside of the first lay-up 11 and each fabric layer forming the second lay-up 14 extends outwardly to form an extension 12.

The cross section of the second layup part 14 after the fabric layer is layered is different from the cross section of the first layup part 11, the cross section formed after the fabric layer of the second layup part 14 is layered is approximately formed with a side similar to the first layup part 11, and is also extended outwards to form an extended length section, and the extended section 12 can be a straight section.

In this embodiment, the roof side rail includes that the first shop of the portion 11 that is loop configuration and the second shop of the portion 14 that is located the first shop of the portion 11 outside and partly forms extension 12, first shop of the portion 11 can the shape of accurate shaping cavity body 10 like this, in order to do benefit to the outer wall shape after second shop of the portion 14 lays and satisfy the cooperation demand, and the intensity of closed loop configuration is also higher, can satisfy the service strength who satisfies the roof side rail with less thickness, and then reduce the weight of roof side rail.

In the above embodiments, each closed loop structure of the first lay-up portion 11 includes at least two fabric segments, and the first fiber filaments 15 extending longitudinally are further disposed between adjacent fabric segments, and each fabric segment and each first fiber filament 15 are enclosed to form a complete closed loop structure.

While a closed loop structure is shown with two fabric sections, it is understood that the fabric sections that enclose a loop structure are not limited to those shown and can be three or four or more. As shown in the figure, the cross section of the roof side rail comprises two fabric sections and the first fiber yarns 15 positioned at the splicing positions of the two fabric sections, the deformation of the cross section of the roof side rail can be reduced by the two or more fabric sections, and meanwhile, the strength of the connecting position of the two fabric sections is enhanced by the first fiber yarns 15.

In order to reinforce the strength of the root of the extension 12, in a specific embodiment, the innermost fabric of the second lay-up 14 extends outward to form the root of the extension 12 and form a root region with the outer wall of the first lay-up 11, the root region is provided with at least one second fiber 13 extending along the longitudinal direction, and each second fiber 13 is integrated with the first lay-up 11 and the second lay-up 14 through the bonding glue filled in the root region.

In the above embodiments, the annular structure may be a polygon, the extension section 12 is formed at one corner of the polygon, one sidewall 121 of the extension section 12 is located on the same plane as the outer wall 101 of the adjacent hollow tube 10, and the other sidewall of the extension section 12 is connected to the outer wall of the adjacent hollow tube 10 through a corner section.

The roof side rail structure of this structure does not change the position and the basis of structure of each spare part in former equipment cabin, can satisfy the user demand, can satisfy assembly needs and simple structure again.

In order to have both the use strength and the bending strength of the roof side rail, the fabric layer can comprise one or a combination of multiaxial carbon fiber fabric, bidirectional twill carbon fiber fabric, patterned carbon fiber fabric or +/-45-degree carbon fiber fabric.

In each of the above embodiments, each layer of fabric in the second lay-up portion 14 is a unitary piece. Thus, the appearance can be improved while the longitudinal use strength is satisfied.

On the basis of the above-mentioned roof side rail embodiments of each equipment compartment, the invention further provides a molding method of the roof side rail, the molding method comprises an internal paving process and an external paving process, the external paving process is located at the downstream of the internal paving process, namely, the roof side rail enters the external paving process after the internal paving process is completed.

Specifically, the internal layering process comprises the following steps: when laying, under the action of traction force, a first part of fabric firstly passes through a first preforming station and then enters a first glue dipping station for glue dipping, and the fabric after glue dipping is extruded and laid on the surface of a core mold to form an annular structure and then enters a second glue dipping station. The first part of the fabric lay-up forms a first lay-up portion 11.

The external layering process comprises the following steps: and simultaneously applying a preset tension to a second part of fabric, drawing the second part of fabric to pass through a second preforming station and then enter a second impregnation station for impregnation, laying the second part of fabric on the surface of the first part of fabric, extruding the impregnated first part of fabric and the second part of fabric again under the action of traction force to form a whole, and then entering the lower process.

The second portion of fabric is laid to form a second lay-up portion 14.

When the number of the first fabric part layers in the first lay-up part 11 is relatively large, the internal lay-up process can be further divided into a first internal lay-up process, a second internal lay-up process, … … and an nth internal lay-up process, and the first group of the first fabric part, the second group of the first fabric part, … … and the nth group of the first fabric part are preformed and dipped in glue and are extruded step by step into a whole.

The first part of the fabric comprises at least two groups, and the internal layering process specifically comprises the following steps: during layering, under the action of traction force, a first group of first partial fabrics are preformed through a first group of first preforming stations 21 and then enter a first group of first gumming stations 31 for gumming, and the gummed fabrics are extruded and laid on the surface of a core mold 50 to form an annular structure; while the first group of first partial fabrics laid on the surface of the core mold 50 enters the second group of first impregnation stations 32, the second group of first partial fabrics enters the second group of first impregnation stations 32 through the second group of first preforming stations 22 to be impregnated and are laid on the surface of the first group of first partial fabrics and form a ring-shaped structure.

Similarly, when the second fabric part is two or more layers, one or more layers of the fabric may be pre-tensioned, pre-formed, dipped and extruded separately as a whole onto the surface of the formed first laying part 11 or the formed second fabric part of the previous stage.

Given the embodiment wherein the second portion of fabric comprises two portions, namely the second portion of fabric comprises a first set of second portion fabrics and a second set of second portion fabrics, the external ply process comprises: and applying a preset tension to a first group of second partial fabrics, drawing the first group of second partial fabrics to enter a first group of second preforming stations, then entering a first group of second dipping stations 33 for dipping, extruding the dipped first partial fabrics and the first group of second partial fabrics into a whole under the action of the traction force, entering a second group of second dipping stations 34 for dipping through a second group of second preforming stations, simultaneously applying a preset tension to the second group of second partial fabrics, entering the second group of second dipping stations 34 for dipping through the second group of second preforming stations, positioning the second group of second partial fabrics at the periphery of the first group of second partial fabrics, and simultaneously drawing the second partial fabrics out of the second group of second dipping stations 34 and extruding the second partial fabrics into a whole.

The forming structures in the first group of second preforming stations and the second group of second preforming stations can be formed at the inlet position formed on the wall of the glue dipping tank. It is of course also possible to provide a profiled sheet, the forming of the preformed structure with the wall of the dip tank being shown in fig. 2.

The predetermined tension in the above process may be applied by felt guides, such as a first felt guide 41 and a second felt guide 42, shown in fig. 2, for applying tension to the first set of second portions of fabric and the second set of second portions of fabric, respectively. The felt guide is a commonly used member in the art and will not be described herein.

The core mold 50 is supported by the frame 60, the core mold 50 longitudinally penetrates through each preforming station and gum dipping station, the size of each section corresponding to the core mold 50 can be designed according to practical application, and the longitudinally extending core mold has a function of axially positioning each part to a certain extent.

In addition, the invention also provides an equipment compartment, which comprises a cross beam and a roof side rail, wherein the roof side rail is the roof side rail of the equipment compartment in any embodiment.

The forming method is implemented on the basis of the equipment cabin, and the equipment cabin comprises the upper edge beam, so the forming method and the equipment cabin comprise the technical effects of the upper edge beam.

The equipment compartment, the roof side rail of the equipment compartment and the forming process thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.