CN109305180B

CN109305180B - Tunnel detects car body steel construction

Info

Publication number: CN109305180B
Application number: CN201810952741.8A
Authority: CN
Inventors: 杜彦品; 牛永刚; 王潇雨; 辛志斌; 高健飞; 王小霞; 徐诗亚
Original assignee: CRRC Nanjing Puzhen Co Ltd
Current assignee: CRRC Nanjing Puzhen Co Ltd
Priority date: 2018-08-21
Filing date: 2018-08-21
Publication date: 2020-07-07
Anticipated expiration: 2038-08-21
Also published as: CN109305180A

Abstract

The invention relates to a vehicle body steel structure of a tunnel detection vehicle, which comprises: the vehicle body of the detection equipment area is of an open structure suitable for mounting a protective cover, the area is provided with a partition wall welded with the underframe, the underframe is provided with a center sill, side sills, cross beams welded between the center sill and the side sills, a traction and bolster buffer structure and an iron floor, and the side sills are provided with reinforcing beams positioned in the detection equipment area to provide mounting surfaces for slideways of the protective cover; the lower part of the iron floor is welded with a longitudinal beam close to the side beam, a sealing plate is arranged between the longitudinal beam and the lower wing surface of the side beam, and the reinforcing beam and the iron floor are welded and fixed at the upper wing surface of the longitudinal beam. The invention is a brand new car body steel structure with the coexistence of integral bearing and underframe bearing, can be used for installing large-scale detection equipment, can bear larger vertical concentrated load interception, and can meet the requirements of integral movement and installation of a protective cover.

Description

Tunnel detects car body steel construction

Technical Field

The invention relates to the technical field of railway passenger car bodies, in particular to a high-speed rail tunnel detection car body steel structure.

Background

By 2016, 2906 railway tunnels with the speed grade of 200 km/h and above in China exist, 1331 high-speed railway tunnels are built, the quality of tunnel engineering sometimes has defects, such as cracking, falling, block falling and water leakage, seriously threatens the running safety of trains, and the quality of the tunnels needs to be detected regularly.

The existing general-speed railway tunnel detection vehicle body is mainly of a thin-wall cylindrical integral bearing structure and comprises an underframe steel structure, a side wall steel structure, a roof steel structure, an outer end wall steel structure and a partition wall steel structure. The detection equipment is provided with a group of protective covers (two symmetrical pieces) outside one end pillow, and one end of each protective cover is arranged on an outer end wall steel structure and a partition wall steel structure, and the two protective covers can be opened and closed in the middle. The underframe steel structure has no center sill, the iron floor between two sleeper beams is a corrugated floor, and an installation beam and a reinforcing beam are arranged above the side beam of the underframe in the equipment area. In order to install the protective cover, the cross section of the side wall steel structure is reduced within the range of 750mm on the left side of the two-position end equipment area, namely the size of the side wall from the center of the vehicle is reduced by 40mm compared with that of the one-position end, the side wall at the position of the variable cross section is a square upright column, and the partition wall steel structure is a C-shaped corner column.

The prior art scheme is designed for a common-speed railway tunnel detection vehicle, and only meets the requirements that detection equipment is arranged outside a sleeper, the quantity of the equipment is small, the weight of the equipment is light, for the vehicle with more detection equipment and a larger equipment area (about 7500mm, for example), the structural strength and the rigidity of the existing vehicle body can not meet the standard requirements of TB/T1335 from the sleeper to the vehicle type in the sleeper in an open area of the vehicle body. The prior art scheme can only meet the installation mode of the two ends of the protective cover, and can not meet the installation requirements of protective covers (such as an integral movable protective cover) with other installation modes.

High-speed railway tunnel detects car check out test set quantity many, and weight is big, needs bigger equipment district. The protective cover and the mounting manner on the vehicle body are not applicable. The existing vehicle body structure of the common-speed railway tunnel vehicle can not meet the requirements of the high-speed railway tunnel detection vehicle from the aspects of strength, rigidity, installation mode of a protective cover, stability and the like.

Disclosure of Invention

The invention mainly aims to: aiming at the defects in the prior art, the vehicle body steel structure of the tunnel detection vehicle is provided, and the tunnel detection vehicle for the high-speed rail, which can meet the requirements of large-size open type detection equipment areas and large concentrated loads, can be used. In addition, a reliable structure is provided for the installation and the opening and closing of the protective cover, and the good sealing of the installation interface can be ensured. .

In order to solve the technical problems, the invention provides a steel structure of a vehicle body of a tunnel detection vehicle, which comprises: chassis, side wall, roof and outer end wall, its characterized in that: the side of the vehicle close to the two-position end is provided with a detection equipment area, the vehicle body of the detection equipment area is of an open structure suitable for mounting a protective cover, the area is provided with a partition wall welded with an underframe, the underframe is provided with a center sill, a side sill, a cross beam welded between the center sill and the side sill, a traction and bolster buffer structure and an iron floor, and the side sill is provided with a reinforcing beam positioned in the detection equipment area and provides a mounting surface for a slide way of the protective cover; the lower part of the iron floor is welded with a longitudinal beam close to the side beam, a sealing plate is arranged between the longitudinal beam and the lower wing surface of the side beam, and the reinforcing beam and the iron floor are welded and fixed at the upper wing surface of the longitudinal beam.

The steel structure of the vehicle body adopts a structure that one end of the steel structure is integrally supported and the other end of the steel structure is supported by a chassis, and the chassis is provided with a middle beam. The car body steel structure is formed by assembling and welding an underframe steel structure, a side wall steel structure, a roof steel structure, an outer end wall steel structure and a partition wall steel structure (3). The vehicle body in the detection equipment area is of an open structure, namely, the side wall and the vehicle roof are not arranged (a protective cover is arranged in the area to form a closed space for the equipment area). In order to improve the overall rigidity and the stability of the protective cover, the protective cover is divided into two groups, a partition wall steel structure with certain thickness is arranged between the protective cover, and when the protective cover is closed, the protective cover can be clamped and sealed through the partition wall steel structure. The partition steel structure is welded on the underframe reinforcing beam. In order to provide a moving space for opening the protective cover, the two ends of the equipment area adopt variable cross-section design, namely, the cross section formed by the side wall and the roof is smaller than the outline of the vehicle body. The high and low roofs of the variable cross section area at one end are connected through end tops, the side walls are connected through a 'B' -shaped upright post, and the roof and the side walls at the other end are respectively connected with the end tops and the end corner posts of the outer end wall steel structure; the end top is provided with a thick sealing plate which is welded with the end top bent beam and the upright post. The end corner post adopts a rectangular section. In order to improve the strength of the variable cross section, rectangular and P-shaped section reinforcing beams are welded on the side beams of the underframe in the open area of the car body, the reinforcing beams are long in the equipment area and the variable cross section area, and a water baffle is welded on the upper plane to prevent rainwater from entering the car; a groove-shaped reinforcing beam is arranged in the lower pillow. The end part of the rectangular reinforcing beam is welded with the side wall U-shaped stand column and the steel structure end corner column of the outer end wall. Rectangular cross beams are welded between the roof side beams at the two sides of the variable cross section. In the variable cross-section area of the vehicle body, the side wall is welded on the rectangular reinforcing beam above the side beam of the underframe; the side walls and the top end part of the car are provided with partition wall steel structures to be connected with the side walls and the top end part of the car so as to improve the anti-torsion performance of the car body.

The underframe steel structure consists of a traction and bolster buffer, a cross beam, a longitudinal beam, a middle beam, a side beam, a reinforcing beam and a floor. The middle beam, the side beam, the cross beam and the longitudinal beam adopt groove-shaped sections, and the floor adopts a thick flat floor. The middle beam adopts two back-to-back channel beams, the two channel beams are connected by a rib plate, and the channel beams and the rib plate are provided with lightening holes, so that the weight of the vehicle body can be lightened. The upper cover plate is welded on the upper plane of the middle beam, and the lower cover plate is welded on the lower plane near the sleeper beam, so that the bearing capacity of the middle beam is improved. In the open area of the car body in the equipment area, a groove-shaped or angular longitudinal beam is welded below the iron floor at the position of the near side beam, the lower wing surface of the longitudinal beam in the sleeper is flush with the lower wing surface of the side beam, and a sealing plate is welded below the longitudinal beam in the sleeper, so that the longitudinal load can be transferred conveniently, and the vertical bending resistance can be improved. And the reinforced beam and the iron floor are butt-welded on the upper wing surface of the longitudinal beam. Be equipped with check out test set platform cell type mount pad on the equipment district floor, there is the gusset support in the cell type section, increases the intensity of mount pad, and the vertical bearing capacity of chassis is improved to groove shape or rectangle longeron and crossbeam that is equipped with under mount pad department floor.

The side wall steel structure consists of a side door frame, an upright post, a longitudinal beam, an upper side beam and a wallboard. A large-section groove-shaped upright post is arranged at the variable cross section of one end, a segmented sealing plate and a rib plate are arranged in the groove shape to locally seal the upright post into a section shaped like a Chinese character ri, and the side walls at the two ends are connected.

The roof steel structure consists of a flat top and a dome, wherein the dome consists of a camber beam, a longitudinal beam, an upper edge beam and a top plate. At the variable cross section of the vehicle body at one end, the high dome and the low dome are connected through the end top, and a fish-bellied longitudinal beam is arranged between the high dome and the low dome for connection, so that the strength of the variable cross section is improved. The bent beam at the end part of the low dome is made of angle steel and is welded with the bent beam at the lower part of the end top, so that the water leakage risk is reduced. The two-position end is provided with a low dome.

The outer end wall steel structure is divided into a one-position outer end wall steel structure and a two-position outer end wall steel structure. The two-position outer end wall steel structure consists of beam columns, wall plates and rectangular end corner columns, and the inner sides of the end tops are welded with arc sealing plates which are connected with the corner-shaped end top bent beams and the end top upright columns so as to be conveniently welded with the low domes.

The partition wall steel structure has three kinds, comprises beam column, wallboard and corner post. The partition wall A provided with the detection equipment has a structure like a Chinese character ri or a Chinese character mu formed by a groove beam on a back framework, a hole is formed in a wallboard, and a mounting seat is welded with the groove beam. Partition wall steel construction corner post is the rectangle section of tailor-welding, and the camber beam is the tailor-welding cell type, and the tailor-welding position is the right angle, and protrusion side wall and roof 20mm provide the foundation of installation for the clamping device after the protection casing is closed, can provide good waterproof seal structure simultaneously. The profile of the steel structure section of the arch partition wall between the two protective covers is consistent with the section of the vehicle body, and the appearance attractiveness of the closed protective covers is improved. The partition wall has two layers of frameworks, the lower part of the framework is welded on the rectangular reinforcing beam, and the framework has a certain width, so that the rigidity and the stability of the partition wall steel structure can be improved.

In addition, the invention also protects a tunnel detection vehicle which is provided with the vehicle body steel structure.

The invention is a brand new car body steel structure with the coexistence of integral bearing and underframe bearing, can be used for installing large-scale detection equipment, can bear larger vertical concentrated load interception, can meet the requirements of integral movement and installation of a protective cover, and can meet the requirements of TB/T1335-1996 railway vehicle strength design and test identification standard.

Drawings

FIG. 1 is a schematic view of the steel structure of the vehicle body according to the present invention.

Fig. 2 is a schematic view of the structure of the chassis of the present invention.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a sectional view a-a of fig. 3.

Fig. 5 is a schematic view of the sidewall structure of the present invention.

Fig. 6 is a schematic view of the roof structure of the present invention.

Fig. 7 is a top view of fig. 6.

Fig. 8 is a cross-sectional view taken along line D-D of fig. 7.

Fig. 9 is a schematic view of the partition wall of the present invention.

Fig. 10 is a cross-sectional view C-C of fig. 9.

Fig. 11 is a schematic view of the partition wall of the present invention.

Fig. 12 is a schematic view of a partition wall of the present invention.

Detailed Description

The following explains an embodiment of the present invention with reference to the drawings.

As shown in fig. 1, the tunnel inspection vehicle body steel structure of the embodiment includes: the automobile protection cover comprises an underframe 1, side walls 2, an automobile roof 3, a first outer end wall 4 and a second outer end wall 5, wherein a detection equipment area is arranged on one side of the automobile close to a second end, the automobile body of the detection equipment area is of an open structure suitable for mounting a protection cover, and a first partition wall 6, a second partition wall 7 and a third partition wall 8 which are welded with the underframe are arranged in the area.

As shown in fig. 2 to 4, the underframe has a center sill 11, side sills 12, cross members 10 welded between the center sill 11 and the side sills 12, a draft structure 9, and an iron floor 13. The center sill is provided with two channel steels (the height is 240 mm) with openings facing the side beams and rib plates welded between the two channel steels, an upper cover plate with the thickness of 4mm is welded on the upper plane of the channel steels, a lower cover plate with the thickness of 8mm is welded on the lower plane of the channel steels near the sleeper beam, and lightening holes are formed in the channel steels and the rib plates. In order to increase the strength and rigidity of the vehicle body in the open area of the equipment area, reinforcing beams 18 are welded on the upper surfaces of the two side beams 12 within the range of 5310mm from the two-position end to the interior of the pillow (in the detection equipment area), installation surfaces are provided for the slide way of the protective cover, and the reinforcing beams are rectangular sections and P-shaped sections with variable sections. Between the first partition wall 6 and the third partition wall 8, a water baffle plate 19 is welded on the upper plane of the reinforcing beam 18 to prevent rainwater from entering the vehicle. And groove-shaped reinforcing beams 20 with the length of about 4000mm are welded below the side beams at two sides within the range of 6000mm in the two-position end pillow. A longitudinal beam 14 close to the side beam is welded below the iron floor 13, a sealing plate 16 is arranged between the longitudinal beam 14 and the lower wing surface of the side beam 12, and a reinforcing beam 18 and the iron floor 13 are welded and fixed at the upper wing surface of the longitudinal beam 14. Be equipped with the check out test set platform mount pad 17 on the iron floor in check out test set district, the iron floor below of mount pad department is equipped with stiffening beam 15, improves the vertical bearing capacity of chassis.

As shown in fig. 5, the side wall includes a side wall a close to the detection device area and a side wall B far from the detection area and consistent with the vehicle body outline, a lateral distance for accommodating the protective cover is provided between the side wall a and the vehicle body outline, the side wall a and the side wall B are respectively provided with an upright column 23, a longitudinal beam 22, an upper side beam 24 and a wall plate 25, the bottom of the side wall a is provided with a reinforcing beam 27, and the side wall B is provided with a side door frame 21 at one end of the vehicle. A large-section groove-shaped upright post is arranged at the variable section of the vehicle body, and a segmented sealing plate and a rib plate are arranged in the large-section groove-shaped upright post to locally seal the upright post into a 'ri' -shaped section.

As shown in fig. 6 to 8, the roof comprises a flat top 28 and a high dome 29 connected above the side wall B, and a low dome 32 connected to the side wall a, the flat top 28 and the high dome 29 being connected by a middle end top 31, and the high dome 29 and the low dome 30 being connected by a small end top 32. The low dome is composed of camber beams 34, longitudinal beams 35, roof side beams and roof plates 36, and the high dome has the same structure. The end part of the low dome is welded with the end top lower camber beam 38 through the angle-shaped camber beam 34 ', the end top plate 39 is welded with the end top lower camber beam 38, the top plate of the low dome is welded with the angle-shaped camber beam 34 ', the distance between the end top plate 39 and the lower edge of the end top lower camber beam 38 is 30mm, and the distance between the top plate 36 and the inner edge of the angle-shaped camber beam 34 ' is 30 mm.

As shown in fig. 9 and 10, the first partition wall 6 for mounting equipment has a beam column 40, a door frame 41 and a wall plate 42, and has a cross-sectional profile smaller by 193.5mm than the cross-sectional profile of the vehicle body. The first partition wall 6 is provided with equipment installation seats 43 and groove-shaped beams 45 which are respectively positioned at two ends of the partition wall, the groove-shaped beams form a structure like a Chinese character ri or a Chinese character mu, and the equipment installation seats 43 are fixedly welded with the groove-shaped beams 45, so that the strength and the rigidity of the partition wall are improved. The lower part of the mounting seat 43 is provided with a reinforcing rib, the partition wall is also provided with a bolt seat 44 for mounting detection equipment, the outer surfaces of the beam columns on two sides of the partition wall protrude outwards from the outer surface of the side wall A by 20mm, and the top of the partition wall protrudes outwards from the lower dome by 20mm for realizing sealing by matching with rubber in the protective cover.

As shown in fig. 11, the second partition wall 7 for fixing the protective cover is composed of a framework 46 and a skin 47, and the outer contour of the section is consistent with that of the section of the vehicle body, so that the appearance attractiveness of the closed protective cover is ensured. The partition wall steel construction is equipped with two-layer skeleton and covering, has welded the crossbeam between two-layer skeleton and connects, improves the stability of partition wall steel construction. The thickness of the partition steel structure is 300mm, and the width of each side is 350 mm.

As shown in fig. 12, the third partition wall 8 is composed of a framework 49 and a wall plate 50, and is formed by welding rectangular corner posts and groove-shaped bent beams, wherein the welding positions are right angles and protrude 20mm from the side wall a and the roof of the vehicle, and the welding positions are used for being matched with rubber in the protective cover to realize sealing.

The two-position outer end wall steel structure consists of an end wall and an end top, wherein the inner side of the end top is welded with an arc sealing plate which is connected with an end top bent beam and an end top upright post, and the end corner post is a rectangular section.

In addition, the invention also relates to a tunnel detection vehicle which is provided with the vehicle body steel structure in the embodiment and a split type protective cover, wherein the protective cover and the partition wall A are sealed through a rubber strip arranged in the protective cover, and the protective cover is fixed on the partition wall B after being closed.

In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims

1. A tunnel inspection vehicle automobile body steel construction includes: chassis, side wall, roof and outer end wall, its characterized in that: the side of the vehicle close to the two-position end is provided with a detection equipment area, the vehicle body of the detection equipment area is of an open structure suitable for mounting a protective cover, the area is provided with a partition wall welded with an underframe, the underframe is provided with a center sill, a side sill, a cross beam welded between the center sill and the side sill, a traction and bolster buffer structure and an iron floor, and the side sill is provided with a reinforcing beam positioned in the detection equipment area and provides a mounting surface for a slide way of the protective cover; the lower part of the iron floor is welded with a longitudinal beam close to the side beam, a sealing plate is arranged between the longitudinal beam and the lower wing surface of the side beam, and the reinforcing beam and the iron floor are welded and fixed at the upper wing surface of the longitudinal beam.

2. The tunnel inspection vehicle body steel structure of claim 1, characterized in that: the middle beam comprises two channel steels facing the side beam, an upper cover plate and a lower cover plate which are respectively welded on the upper plane and the lower plane of the channel steels, and a rib plate welded between the two channel steels.

3. The tunnel inspection vehicle body steel structure of claim 1, characterized in that: the plane on the reinforcing beam is welded with a water baffle to prevent rainwater from entering the vehicle.

4. The tunnel inspection vehicle body steel structure of claim 1, characterized in that: be equipped with the check out test set platform mount pad on the iron floor in check out test set district, the iron floor below of mount pad department is equipped with the stiffening beam, improves the vertical bearing capacity of chassis.

5. The tunnel inspection vehicle body steel structure of claim 1, characterized in that: the side wall includes that the side wall A who is close to the check out test set district and the side wall B who keeps away from the check out test district and the automobile body outline unanimity, has the lateral distance who holds the protection casing between side wall A and the automobile body outline, and side wall A and side wall B all have stand, roof beam and wallboard, and side wall A's bottom is provided with the reinforcement roof beam, and side wall B has the side door frame in vehicle one end department.

6. The tunnel inspection vehicle body steel structure of claim 5, characterized in that: the partition wall is including the partition wall A who is used for erection equipment, partition wall A has beam column, door frame and wallboard, and partition wall A is equipped with the equipment fixing seat and the groove beam that are located the partition wall both ends respectively, equipment fixing seat and this groove beam welded fastening, the mount pad lower part is equipped with the strengthening rib, and partition wall A still is equipped with the bolt seat that is used for installing check out test set, and the surface evagination in side wall A surface 15-25mm of the beam column of partition wall A both sides, partition wall top evagination in low calotte 20mm for realize sealedly with the rubber cooperation in the protection casing.

7. The tunnel inspection vehicle body steel structure of claim 6, characterized in that: the partition wall also comprises a partition wall B for fixing the protective cover, and the section outline of the partition wall B is consistent with that of the section of the vehicle body and consists of a framework and a skin.

8. The utility model provides a tunnel detects car which characterized in that: a steel structure for a vehicle body according to any one of claims 1 to 7.

9. The tunnel inspection vehicle of claim 8, wherein: the novel protective cover is provided with a split protective cover, the protective cover and the partition wall A are sealed through a rubber strip installed in the protective cover, and the protective cover is fixed on the partition wall B after being closed.