CN105460084B - A kind of low-floor vehicle body bottom frame central structure - Google Patents

A kind of low-floor vehicle body bottom frame central structure Download PDF

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Publication number
CN105460084B
CN105460084B CN201610001483.6A CN201610001483A CN105460084B CN 105460084 B CN105460084 B CN 105460084B CN 201610001483 A CN201610001483 A CN 201610001483A CN 105460084 B CN105460084 B CN 105460084B
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China
Prior art keywords
seat
plate
riser
passageway
floor
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CN201610001483.6A
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CN105460084A (en
Inventor
刘旭
陈赞平
黎宏飞
刘永强
岳译新
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CRRC Zhuzhou Locomotive Co Ltd
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CRRC Zhuzhou Locomotive Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention discloses a kind of low-floor vehicle body bottom frame central structure, including being separately positioned on the pedestal at both ends, the gang way floor being overlapped among the pedestal of both ends, the symmetrically arranged passageway riser fixed with gang way floor both sides edge, the seat installing plate and seat lower cover being connected with passageway riser, the seat installing plate is connected composition concave shape structure with seat lower cover；Also include the bottom cover plate fixed with passageway riser and base bottom, three is fixedly connected to form box-structure；The bottom cover plate is provided with shape of chinese word Ji backstop；The gang way floor lower surface is fixed with traction seat and the towing plate parallel with passageway riser, and traction seat is fixedly connected by traction seat connecting plate with towing plate.The low-floor vehicle body bottom frame central structure of the present invention has the advantages of intensity is good, rigidity is big, simple in construction.The structure leaves enough spaces with the installation of domestic bogie, ensures not interfere with bogie under various operating loadings, and ensure traffic safety.

Description

A kind of low-floor vehicle body bottom frame central structure
Technical field
The invention belongs to rail vehicle body technique, more particularly to a kind of low-floor vehicle body bottom frame central structure.
Background technology
At present, low floor vehicle mainly uses import bogie, and price is higher.In order to promote low floor vehicle domesticize into Journey is, it is necessary to develop the low-floor car body central structure supporting with domestic bogie.
Because domestic bogie and import bogie are distinct, just need to make phase in matched body construction The improvement answered, to meet not produce interference with bogie under the various works such as traction, steering and unwheeling, and various operating modes need to be met Under bearing requirements.The manufacturability of structure is considered simultaneously, can preferably be controlled welding deformation and be met that bogie installation accuracy will Ask.
In addition, the low floor vehicle space utilization of prior art is unreasonable, seat is longitudinally arranged, it is impossible to sharp to greatest extent More people are taken with space.
The content of the invention
In view of the above-mentioned problems, the present invention is intended to provide in the middle part of a kind of low-floor vehicle body bottom frame that can adapt to domestic bogie Structure.
The technical scheme of the present invention that solves the problems, such as is：A kind of low-floor vehicle body bottom frame central structure, including be separately positioned on The pedestal at both ends, the gang way floor being overlapped among the pedestal of both ends, the symmetrically arranged mistake fixed with gang way floor both sides edge Road riser, the seat installing plate and seat lower cover being connected with passageway riser, the seat installing plate are connected with seat lower cover Form concave shape structure；
Also include the bottom cover plate fixed with passageway riser and base bottom, three is fixedly connected to form box-structure；
The bottom cover plate is provided with shape of chinese word Ji backstop；
The gang way floor lower surface is fixed with traction seat and the towing plate parallel with passageway riser, and traction seat is by leading Introduction connecting plate is fixedly connected with towing plate.
Further, the traction seat is hatch frame, including symmetrically arranged left support abutment and right support abutment, and left and right branch Gap is left between seat；Left and right bearing is provided with the screw being connected with draw bar.
In the further improved scheme, traction seat does not use traditional totally enclosed type to design, and its purpose is to save Space.
Further, the traction seat connecting plate has two pieces, and one of and towing plate vertical connection, another piece with drawing The oblique connection of plate；
Two pieces of traction seat connecting plates surround to form triangle box-structure with towing plate.
In such scheme, the strength and stiffness that box-structure is favorably improved traction seat are formed.Meanwhile tractive force is by leading Introduction is delivered to traction seat connecting plate, then is delivered to towing plate and bottom cover plate, forms integrated carrying.Diagonally disposed traction seat Connecting plate undertakes longitudinal stretching and compressive load in traction.
The shape of chinese word Ji backstop is hollow structure, including vertical horizontal stop surface and the vertical stop surface of level, is hung down It is fixedly connected to stop surface with bottom cover plate.The backstop of this kind of structure is in light weight, simple in construction, it is only necessary to which one can solve to hang down To the spacing problem with transverse direction, and traditional backstop at least needs to set two.
The gang way floor both ends are bent with the gradient.Design grade can raise gang way floor, increase gang way floor and bottom The space of portion's cover plate, so as to improve the rigidity of this structure.
The passageway riser tilts towards seat installing plate, and angle is left in passageway riser opposed vertical face.So that gang way floor It may be provided over more spacious space.
The seat lower cover bottom, which is fixed, free spring installing plate, fixed on empty spring installing plate to be free spring mounting pin, the two Installed by shaft hole matching；Reinforcement is provided between empty spring installing plate and passageway riser.
In such scheme, empty spring installing plate is connected with turning to aerial spring, bears vertical load.Empty spring mounting pin is used for empty spring Installation positioning.Reinforcement plays booster action, avoids sky spring installing plate from producing fatigue failure.
Lateral arrangement has seat on the seat installing plate.Bogie superjacent air space is made full use of, this central structure can cloth Put 16 seats.Each relatively conventional arrangement of central structure adds 4 seats.
The gang way floor back side and the junction of bottom cover plate are fixed with crane seat, meet crane need during with bogie Ask.
The seat lower cover is provided with the mounting hole for installing bogie anti-rolling device, installation bogie anti-side rolling dress Put and suppress car body and lateral displacement during bogie operation.
Low-floor vehicle body bottom frame central structure intensity of the invention is good, rigidity is big, simple in construction.With vehicle group postwelding, Vehicle 400KN compressions and 300KN tensile loads can be met.The structure leaves enough spaces with the installation of domestic bogie, ensures Do not interfered under various operating loadings with bogie, and be designed with while there is the backstop knot of horizontal and vertical stop function Structure, it is ensured that traffic safety.The structure can promote low-floor tramcar localization process, have good social benefit and Economic benefit.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is central structure top view of the present invention.
Fig. 2 is central structure upward view of the present invention.
Fig. 3 is zoomed-in view I in Fig. 2（Eliminate bottom cover plate）.
Fig. 4 is empty spring mounting pin sectional view.
Fig. 5 is central structure longitudinal direction of the present invention sectional drawing.
Fig. 6 is gang way floor structure.
Fig. 7 is zoomed-in view II in Fig. 2.
In figure：1- pedestals, 2- seat installing plates, 3- seat lower covers, 4- passageways riser, 5- gang way floors, 6- bottom covers Plate, 7- stops, the vertical stop surfaces of 7a-, 7b- transverse direction stop surfaces, 8- traction seats, 81- left support abutments, 82- right support abutments, the installation of 9- skies spring Plate, 10- sky spring mounting pins, 11- traction seat connecting plates, 12- towing plates, 13- traction seat connecting plates, 14- reinforcements, 15- cranes Seat, 16- mounting holes.
Embodiment
As shown in Fig. 1~7, a kind of low-floor vehicle body bottom frame central structure, including be separately positioned on the pedestal 1 at both ends, take The symmetrically arranged passageway riser 4 of be connected on the gang way floor 5 among both ends pedestal 1, fixing with the both sides edge of gang way floor 5, with The seat installing plate 2 and seat lower cover 3 that passageway riser 4 connects, the seat installing plate 2 are connected composition with seat lower cover 3 Concave shape structure.
Also include the bottom cover plate 6 fixed with passageway riser 4 and the bottom of pedestal 1, three is fixedly connected to form box knot Structure.
The bottom cover plate 6 is provided with shape of chinese word Ji backstop 7.The shape of chinese word Ji backstop 7 is hollow structure, including vertical horizontal stroke It is fixedly connected to stop surface 7b and the vertical stop surface 7a of level, vertical stop surface 7a with bottom cover plate 6.This kind of structure only Keep off it is 7 in light weight, it is simple in construction.
The lower surface of gang way floor 5 is fixed with traction seat 8 and the towing plate 12 parallel with passageway riser 4, traction seat 8 It is fixedly connected by traction seat connecting plate with towing plate 12.
The traction seat 8 is hatch frame, including symmetrically arranged left support abutment 81 and right support abutment 82, and left and right bearing it Between leave gap；Left and right bearing is provided with the screw being connected with draw bar.
The traction seat connecting plate has two pieces, one of traction seat connecting plate 11 and the vertical connection of towing plate 12, another Block traction seat connecting plate 13 and 12 oblique connection of towing plate；Two pieces of traction seat connecting plates surround to form triangle case with towing plate 12 Type structure.
The bottom of seat lower cover 3, which is fixed, free spring installing plate 9, fixed on empty spring installing plate 9 to be free spring mounting pin 10, The two is installed by shaft hole matching；Reinforcement 14 is provided between empty spring installing plate 9 and passageway riser 4.
The both ends of gang way floor 5 are bent with the gradient.
The passageway riser 4 tilts towards seat installing plate, and angle is left in the opposed vertical face of passageway riser 4.It is so that excessively genuine Plate 5 may be provided over more spacious space.
Lateral arrangement has seat on the seat installing plate 2.Bogie superjacent air space is made full use of, this central structure can cloth Put 16 seats.
The back side of gang way floor 5 and the junction of bottom cover plate 6 are fixed with crane seat 15, meet hanging during with bogie Car demand.
The seat lower cover 3 is provided with the mounting hole 16 for installing bogie anti-rolling device.

Claims (8)

  1. A kind of 1. low-floor vehicle body bottom frame central structure, it is characterised in that：Including being separately positioned on the pedestal at both ends, being overlapped on two The symmetrically arranged passageway riser and passageway riser that gang way floor and gang way floor both sides edge among end group seat are fixed connect The seat installing plate and seat lower cover connect, the seat installing plate are connected composition concave shape structure with seat lower cover；
    Also include the bottom cover plate fixed with passageway riser and base bottom, three is fixedly connected to form box-structure；
    The bottom cover plate is provided with shape of chinese word Ji backstop, and the shape of chinese word Ji backstop is hollow structure, including vertical horizontal backstop Face and the vertical stop surface of level, vertical stop surface are fixedly connected with bottom cover plate；
    The gang way floor lower surface is fixed with traction seat and the towing plate parallel with passageway riser, traction seat pass through traction seat Connecting plate is fixedly connected with towing plate；
    The seat lower cover bottom, which is fixed, free spring installing plate, and fixed on empty spring installing plate to be free spring mounting pin, the two passes through Shaft hole matching is installed；Reinforcement is provided between empty spring installing plate and passageway riser.
  2. 2. low-floor vehicle body bottom frame central structure according to claim 1, it is characterised in that：The traction seat is opening knot Structure, including symmetrically arranged left support abutment and right support abutment, and leave gap between left and right bearing；Left and right bearing is provided with and traction The screw of bar connection.
  3. 3. low-floor vehicle body bottom frame central structure according to claim 2, it is characterised in that：The traction seat connecting plate has Two pieces, one of and towing plate vertical connection, another piece and the oblique connection of towing plate；
    Two pieces of traction seat connecting plates surround to form triangle box-structure with towing plate.
  4. 4. low-floor vehicle body bottom frame central structure according to claim 1, it is characterised in that：The gang way floor both ends folding It is curved to have the gradient.
  5. 5. low-floor vehicle body bottom frame central structure according to claim 1, it is characterised in that：The passageway riser is towards seat Installing plate tilts, and angle is left in passageway riser opposed vertical face.
  6. 6. low-floor vehicle body bottom frame central structure according to claim 1, it is characterised in that：The gang way floor back side with The junction of bottom cover plate is fixed with crane seat.
  7. 7. low-floor vehicle body bottom frame central structure according to claim 1, it is characterised in that：It is horizontal on the seat installing plate To being disposed with seat.
  8. 8. low-floor vehicle body bottom frame central structure according to claim 1, it is characterised in that：The seat lower cover is provided with For installing the mounting hole of bogie anti-rolling device.
CN201610001483.6A 2016-01-05 2016-01-05 A kind of low-floor vehicle body bottom frame central structure Active CN105460084B (en)

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CN201610001483.6A CN105460084B (en) 2016-01-05 2016-01-05 A kind of low-floor vehicle body bottom frame central structure

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109178009B (en) * 2018-11-08 2020-07-31 中车株洲电力机车有限公司 100% low-floor rail vehicle underframe and 100% low-floor rail vehicle
CN110481584B (en) * 2019-09-11 2020-08-21 中车株洲电力机车有限公司 Low-floor vehicle body underframe structure and tramcar
CN111252102B (en) * 2020-03-17 2021-04-20 中铁轨道交通装备有限公司 Low-floor tramcar underframe structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203460872U (en) * 2013-08-20 2014-03-05 长春轨道客车股份有限公司 Broad gauge subway end bottom frame
CN203681567U (en) * 2013-10-23 2014-07-02 南车株洲电力机车有限公司 Primary bidirectional stopping seat structure of bogie
CN203920759U (en) * 2014-06-27 2014-11-05 成都市新筑路桥机械股份有限公司 A kind of 100% modern city tramway train vehicle body bottom frame
CN104649131A (en) * 2014-12-30 2015-05-27 唐山轨道客车有限责任公司 Low-floor vehicle transportation method and system thereof
CN105015571A (en) * 2015-08-21 2015-11-04 广州电力机车有限公司 Chassis of low-floor trailer body

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4364858B2 (en) * 2005-09-29 2009-11-18 近畿車輌株式会社 Car body for railway vehicles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203460872U (en) * 2013-08-20 2014-03-05 长春轨道客车股份有限公司 Broad gauge subway end bottom frame
CN203681567U (en) * 2013-10-23 2014-07-02 南车株洲电力机车有限公司 Primary bidirectional stopping seat structure of bogie
CN203920759U (en) * 2014-06-27 2014-11-05 成都市新筑路桥机械股份有限公司 A kind of 100% modern city tramway train vehicle body bottom frame
CN104649131A (en) * 2014-12-30 2015-05-27 唐山轨道客车有限责任公司 Low-floor vehicle transportation method and system thereof
CN105015571A (en) * 2015-08-21 2015-11-04 广州电力机车有限公司 Chassis of low-floor trailer body

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