CN111674413A

CN111674413A - Double-deck train upper floor structure

Info

Publication number: CN111674413A
Application number: CN202010555525.7A
Authority: CN
Inventors: 谈源; 陈浩; 汤娟; 王小清; 钱亚刚; 王瑞
Original assignee: Jiangsu Huafu Rail Transit Technology Co ltd
Current assignee: Jiangsu Huafu Rail Transit Technology Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2020-09-18

Abstract

The invention provides a double-layer train upper floor structure, which comprises an upper skin, a lower skin, a frame and a square tube, wherein the upper skin, the lower skin, the frame and the square tube are made of fiber composite materials; the frame is arranged between the upper skin and the lower skin and comprises an outer frame which is arranged in the circumferential direction and seals the edges of the upper skin and the lower skin, and a plurality of cross beams and longitudinal beams which are arranged in the outer frame in a crossed manner; and the square tubes are vertically arranged in the cavity formed by the upper skin, the lower skin and the frame so as to increase the overall compression resistance. Compared with the prior art, the double-layer train upper floor structure has the advantages that the traditional metal floor is replaced by the fiber composite floor, the strength is improved, the self weight is reduced, the whole pressure resistance is improved by arranging the square pipes in the double-layer train upper floor structure, and finally, the sound insulation and shock absorption effects are achieved by arranging the square pipes into the honeycomb structure.

Description

Double-deck train upper floor structure

Technical Field

The invention relates to the technical field of rail transit, in particular to a double-layer train upper floor structure.

Background

Double-deck train is as a vehicle that improves passenger traffic ability, because its deciding the personnel more, consequently, the rigidity requirement under the vertical load effect to upper floor is very high, and current double-deck train mostly forms for the aluminum alloy ex-trusions tailor-welded, passes through the haake rivet with the stainless steel automobile body and is connected, leads to whole weight big on the large side, is unfavorable for lightweight speed-raising, simultaneously, because metal material, the passenger steps on and sends out the noise easily on, influences passenger's of lower floor experience by bus.

In view of the above-mentioned drawbacks, the present designer has made active research and innovation to create a double-layer train upper floor structure, which is more practical.

Disclosure of Invention

In view of this, the invention provides a double-layer train upper floor structure, and aims to solve the technical problem that in the prior art, a metal floor is heavy and is not beneficial to light weight and speed increase of a train.

The invention provides a double-layer train upper floor structure, which comprises an upper skin, a lower skin, a frame and a square tube, wherein the upper skin, the lower skin, the frame and the square tube are made of fiber composite materials;

the frame is arranged between the upper skin and the lower skin and comprises an outer frame which is arranged in the circumferential direction and seals the edges of the upper skin and the lower skin, and a plurality of cross beams and longitudinal beams which are arranged in the outer frame in a crossed manner;

and the square tubes are vertically arranged in the cavity formed by the upper skin, the lower skin and the frame so as to increase the overall compression resistance.

Furthermore, the cross beam and the longitudinal beam are alternately provided with upper clamping grooves and lower clamping grooves along the length direction of the cross beam and the longitudinal beam.

Furthermore, the upper clamping groove of the cross beam, the lower clamping groove of the longitudinal beam, the lower clamping groove of the cross beam and the upper clamping groove of the longitudinal beam are mutually embedded to form a reinforcing beam structure which is staggered transversely and longitudinally.

Furthermore, the side wall parts of the square pipes are jointed to form a honeycomb structure.

Furthermore, the inner side of the outer frame is alternately provided with an upper clamping groove and a lower clamping groove which are used for being clamped with the end parts of the cross beam and the longitudinal beam.

Furthermore, one side of the frame is provided with a C groove, and the opposite side is provided with a boss for side lapping.

Further, the cross sections of the transverse beams and the longitudinal beams are in a shape of a Chinese character 'ri'.

Compared with the prior art, the double-layer train upper floor structure has the advantages that the traditional metal floor is replaced by the fiber composite floor, the strength is improved, the self weight is reduced, the whole pressure resistance is improved by arranging the square pipes in the double-layer train upper floor structure, and finally, the sound insulation and shock absorption effects are achieved by arranging the square pipes into the honeycomb structure.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic view of the position of an upper floor on a double-deck train;

FIG. 2 is a schematic structural diagram of an upper floor provided in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a frame according to an embodiment of the present invention;

FIG. 4 is a schematic view for illustrating a connection relationship between a cross beam and a longitudinal beam according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an outer frame according to an embodiment of the present invention;

FIG. 6 is a side view of an upper floor panel provided by an embodiment of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6;

FIG. 8 is a partial enlarged view of B in FIG. 6;

FIG. 9 is a schematic view of two upper floor boards when they are overlapped;

FIG. 10 is a schematic longitudinal cross-sectional view of a frame provided in accordance with an embodiment of the present invention;

reference numerals: 1. covering the skin; 2. a lower skin; 3. a frame; 31. an outer frame; 32. a cross beam; 33. a stringer; 34. an upper clamping groove; 35. a lower clamping groove; 4. a square tube; 5. c, groove; 6. and (4) a boss.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 2 to 10, it can be seen that the double-layer train upper floor structure provided by the embodiment of the invention comprises an upper skin 1, a lower skin 2, a frame 3 and a square pipe 4, wherein the upper skin 1, the lower skin 2, the frame 3 and the square pipe 4 are made of fiber composite materials, the frame 3 is arranged between the upper skin 1 and the lower skin 2, the frame 3 comprises an outer frame 31 which is arranged in the circumferential direction and seals edges of the upper skin 1 and the lower skin 2, and a plurality of cross beams 32 and longitudinal beams 33 which are arranged in the outer frame 31 in a crossed manner; a plurality of square pipes 4 are vertically arranged in a cavity formed by the upper skin 1, the lower skin 2 and the frame 3 so as to increase the overall compression resistance. Compared with the prior art, the double-layer train upper floor structure has the advantages that the traditional metal floor is replaced by the fiber composite floor, the strength is improved, the self weight is reduced, the whole pressure resistance is improved by arranging the square pipes in the double-layer train upper floor structure, and finally, the sound insulation and shock absorption effects are achieved by arranging the square pipes into the honeycomb structure.

As a preferred embodiment, in order to further enhance the sound insulation effect, sound absorbing materials, such as sound absorbing cotton, foam, etc., may be further disposed inside the square pipe 4.

In this embodiment, because crossbeam 32 and longeron 33 are fibre composite material finished piece, can't adopt the welding form to connect, consequently, adopt the sticky form that connects, in order to guarantee bulk strength, crossbeam 32 and longeron 33 are provided with last draw-in groove 34 and lower draw-in groove 35 along self length direction in turn. The upper clamping groove 34 of the cross beam 32, the lower clamping groove 35 of the longitudinal beam 33, the lower clamping groove 35 of the cross beam 32 and the upper clamping groove 34 of the longitudinal beam 33 are mutually embedded to form a reinforcing beam structure which is staggered transversely and longitudinally, and the structure has good stability.

In this embodiment, in order to increase the rigidity of the upper floor under the vertical action, the side wall portions of the plurality of square tubes 4 are attached to form a honeycomb structure, and those skilled in the art can understand that the square tubes 4 in this embodiment may also have other structures, such as a circle, a triangle, a quadrangle, and the like, and meanwhile, the arrangement mode may also be adjusted.

In this embodiment, the inner side of the outer frame 31 is alternately provided with an upper clamping groove 34 and a lower clamping groove 35 for clamping with the end portions of the cross beam 32 and the longitudinal beam 33, and the stability of the whole structure is ensured by limiting each other in a clamping manner.

In the present embodiment, the cross member 32 and the longitudinal member 33 are formed in a single piece and have good deformation resistance, and the cross member 32 and the longitudinal member 33 may be formed in a segmented structure, so that although the overall weight is reduced, the overall stability is deviated.

In the practical application process, the upper floor needs to be lapped along the length direction of the rail train, for this reason, the frame 3 of the embodiment is provided with the C-shaped groove 5 on one side and the boss 6 on the opposite side, and the two can be mutually embedded, so that the lapping in the length direction is facilitated.

As a preferred embodiment, the cross section of the cross beam 32 and the cross beam 33 is in a shape of a Chinese character ri, and the cross beam 32 and the cross beam 33 in the shape can obtain better torsional strength and rigidity, meanwhile, the cross section is not easy to deform at the junction when the cross beam 32 and the cross beam 33 are embedded, and the lap joint is convenient.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The double-layer train upper floor structure is characterized by comprising an upper skin (1), a lower skin (2), a frame (3) and a square tube (4), wherein the upper skin, the lower skin, the frame and the square tube are made of fiber composite materials;

the frame (3) is arranged between the upper skin (1) and the lower skin (2), and the frame (3) comprises an outer frame (31) which is arranged in the circumferential direction and seals edges of the upper skin (1) and the lower skin (2), and a plurality of cross beams (32) and longitudinal beams (33) which are arranged in the outer frame (31) in a crossed manner;

a plurality of square pipes (4) are vertically arranged in a cavity formed by the upper skin (1), the lower skin (2) and the frame (3) so as to increase the overall compression resistance.

2. The double-deck train upper floor structure according to claim 1, wherein the cross beams (32) and the longitudinal beams (33) are alternately provided with upper catching grooves (34) and lower catching grooves (35) along the length direction thereof.

3. The double-deck train upper floor structure according to claim 2, wherein the upper locking grooves (34) of the cross beams (32) and the lower locking grooves (35) of the longitudinal beams (33), and the lower locking grooves (35) of the cross beams (32) and the upper locking grooves (34) of the longitudinal beams (33) are mutually embedded to form a reinforcing beam structure which is staggered transversely and longitudinally.

4. The double-deck train upper floor structure according to claim 1, wherein side wall portions of the plurality of square pipes (4) are fitted to form a honeycomb structure.

5. The double-deck train upper floor structure according to any one of claims 1 to 4, wherein upper locking grooves (34) and lower locking grooves (35) are alternately provided on the inner side of the outer frame (31) for locking with the ends of the cross beams (32) and the longitudinal beams (33).

6. Double-deck train upper floor structure according to claim 5, characterized in that the frame (3) is provided with a C-channel (5) on one side and a boss (6) on the opposite side for side lap joint.

7. Double-deck train superstructure floor structure according to claim 6, characterized in that said cross-beams (32) and said longitudinal beams (33) are "sun" -shaped in cross-section.