CN107878483B - A kind of 100% low-floor tramcar body construction - Google Patents

A kind of 100% low-floor tramcar body construction Download PDF

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Publication number
CN107878483B
CN107878483B CN201711066988.1A CN201711066988A CN107878483B CN 107878483 B CN107878483 B CN 107878483B CN 201711066988 A CN201711066988 A CN 201711066988A CN 107878483 B CN107878483 B CN 107878483B
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China
Prior art keywords
roof
side wall
welded
plate
mounting base
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CN201711066988.1A
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Chinese (zh)
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CN107878483A (en
Inventor
赵子豪
王万静
林鹏
王晓军
展旭和
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CRRC Qingdao Sifang Co Ltd
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CRRC Qingdao Sifang Co Ltd
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Priority to CN201711066988.1A priority Critical patent/CN107878483B/en
Publication of CN107878483A publication Critical patent/CN107878483A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00Construction details of vehicle bodies
    • B61D17/04Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures

Abstract

The present invention relates to a kind of 100% low-floor tramcar body constructions, for stainless steel car body, including roof, side wall, headwall, chassis, upper hinged mounting base and lower hinged mounting base, roof is by car roof skeleton, roof panels and covering for roofs board group at, roof panels are fixed on car roof skeleton, covering for roofs plate is mounted on the two sides of roof panels, headwall is made of the headwall column of two sides and the end wall panel of centre, the top and bottom of headwall column are connect with roof and welding of underframe respectively, end wall panel is welded between two headwall columns, side wall is by outer cover plate, side wall panel and side wall skeleton composition, side wall panel is fixed on side wall skeleton, outer cover plate is fixed in side wall panel, it is welded to connect by several reinforcing ribs between roof and headwall and between roof and side wall, lightening hole is provided on reinforcing rib.The overall structure of car body of the present invention is simple, and while improving car body overall structural strength and rigidity property, also substantially alleviates the weight of car body, meet vehicle lightweight requirements.

Description

A kind of 100% low-floor tramcar body construction
Technical field
The invention belongs to technical field of rail traffic, in particular to a kind of 100% low-floor tramcar body construction.
Background technique
100% low-floor tramcar is one of the important tool of modern city rail traffic, facilitates passenger to take with it, The features such as organizing into groups multiplicity, flexible operation and existing bus platform and road surface resource-sharing is welcome by each city deeply.Car body is The important component of 100% low-floor railroad vehicle is the primary load bearing structure of vehicle, intensity, rigidity, weight isostructuralism energy Superiority and inferiority have large effect to vehicle runnability.Therefore, design that a kind of structure is simple, intensity is good, rigidity is big, light-weight Body construction be of great significance.
Summary of the invention
Present invention is primarily aimed at solving the above problems, provide that a kind of overall structure is simple, and intensity is good, rigidity is big, and 100% low-floor tramcar body construction of vehicle lightweight requirements at the higher level can be met.
To achieve the above object, the technical scheme is that
A kind of 100% low-floor tramcar body construction, is stainless steel car body, including roof, side wall, headwall, chassis, Upper hinged mounting base and lower hinged mounting base, the roof is by car roof skeleton, roof panels and covering for roofs board group at the roof Plate is fixed on car roof skeleton, and the covering for roofs plate is mounted on the two sides of roof panels, the headwall by two sides headwall column And intermediate end wall panel composition, the top and bottom of the headwall column are connect with roof and welding of underframe respectively, the headwall Plate is welded between two headwall columns, and the side wall is made of side wall outer cover plate, side wall panel and side wall skeleton, the side wall panel It is fixed on side wall skeleton, the side wall outer cover plate is fixed in side wall panel, between the roof and headwall and roof and side wall Between be welded to connect by several reinforcing ribs, be provided with lightening hole on the reinforcing rib.
Further, the headwall column and end wall panel are formed by stainless steel plate bending.
Further, it is L-shaped body that the headwall column, which includes cross section, is all had inwardly in the two sides of L shape main body The L shape flanging of bending, is provided with several strip reinforcing ribs in L-shaped body.
Further, multiple stiffener plates are welded in parallel from top to bottom on the headwall column, in the stiffener plate On be provided with lightening hole.
Further, it is welded to connect by stiffening plate at the window angle of the side wall skeleton, the stiffening plate and side wall bone It is fixedly connected between frame by plug welding technique.
Further, the covering for roofs plate is fixedly connected by several brackets with car roof skeleton, and the bracket is L shape, At least one first sliding groove extended along vehicle body longitudinal direction is provided on the inner surface of the covering for roofs plate, in the vehicle The bracket is corresponded on parietal bone frame and is provided with second sliding slot, and the two sides of the bracket are bolted to connection respectively first On sliding slot and second sliding slot.
Further, the car roof skeleton is by the car roof side-beam of two sides and the roof cross beam among car roof side-beam and roof Stringer splicing is welded, and is equipped with multiple installations for being used to fix roof apparatus by bolt between two car roof side-beams Beam, the reinforcing rib are correspondingly arranged at the end of roof cross beam and roof rail.
Further, the upper hinged mounting base is welded by level board and vertical panel, in the level board and vertical panel Between weld multiple vertical stiffener plates, the level board is weldingly fixed on the car roof skeleton.
Further, the chassis includes the end carriage of rear and front end, the edge beam of underframe of two sides, two stringers and two groups of cover board groups At the two sides of the end carriage are weldingly fixed on the edge beam of underframe of two sides, and two stringers are arranged in parallel in two chassis sides Between beam, the both ends of the stringer are respectively welded on the end carriage for being fixed on rear and front end, and the composition of cover board described in two groups is respectively welded It is fixed on the stringer and edge beam of underframe of respective side, lower hinged mounting base is respectively welded on two end carriages.
Further, the cover board composition is formed by stainless steel plate bending.
Further, the section of the stringer is " II " shape, is welded by upper plate, lower plate and two side plate splicings.
Further, the stringer is integrally in " several " character form structure that middle section is bent upwards along vehicle body longitudinal direction.
Further, the centre of the end carriage is provided with c-shaped opening, and the end insertion of the lower hinged mounting base is mounted on institute It states in c-shaped opening and is welded to connect.
Further, the lower hinged mounting base is seperated structure, is made of preceding mounting base and rear mounting base butt welding, Multiple cant boards are welded between the preceding mounting base and rear mounting base, are provided with mounting hole in the rear mounting base.
Further, the cover board composition includes cover board stringer composition and the first cover board for installing seat and the second lid Plate, first cover board are symmetrical arranged two along vehicle body longitudinal direction, and second cover board is mounted in two the first cover boards Between, cover board stringer composition is fixedly connected with side wall, first cover board, the second cover board side be weldingly fixed on cover board and indulge On beam composition.
In conclusion a kind of 100% low-floor tramcar body construction provided by the invention, the main body of car body is by stainless Steel material is welded, and by the rational design to body construction, not only makes the overall structure of car body simple, and is improving vehicle While body overall structural strength and rigidity property, the weight of car body is also substantially alleviated, it is light-weighted higher to meet vehicle It is required that.
Detailed description of the invention
Fig. 1 is body construction figure of the present invention;
Fig. 2 is the structure chart after body construction of the present invention is inverted;
Fig. 3 is headwall three-dimensional structure diagram of the present invention;
Fig. 4 is I partial enlarged view of Fig. 1;
Fig. 5 is II partial enlarged view of Fig. 1;
Fig. 6 is the structure chart of vehicle body bottom frame of the present invention;
Fig. 7 is end carriage local structural graph of the present invention;
Fig. 8 is longitudinal beam structure figure of the present invention;
Fig. 9 is hinged mounting base structure chart under the present invention.
As shown in Figures 1 to 9, roof 1, side wall 2, headwall 3, chassis 4, upper hinged mounting base 5, lower hinged mounting base 6, vehicle Parietal bone frame 7, roof panels 8, covering for roofs plate 10, car roof side-beam 11, roof cross beam 12, roof rail 13, mounting rail 14, bracket 15, first sliding groove 16, second sliding slot 17, headwall column 18, main body 18a, flanging 18b, end wall panel 19, windscreen mounting base 20, put down Plate 20a, flanging 20b, side wall outer cover plate 21, side wall column 22, stiffening plate 24, window crossbeam 23, reinforcing rib 25, lightening hole 26, end Beam 27, edge beam of underframe 28, stringer 29, cover board composition 30, the first needle beam 31, the second needle beam 32, third needle beam 33, the Four needle beams 34, damper mounting base 35, c-shaped opening 36, preceding mounting base 37, rear mounting base 38, cant board 39, mounting hole 40, Cover board stringer composition 41, the first cover board 42, the second cover board 43, the first vertical beam 44, the second vertical beam 45, third vertical beam 46, stiffening plate 47, panting beam 48, lateral damper mounting base 49, drawing pull bar mounting base 50, lateral backstop mounting base 51, third sliding slot 52, Stiffener plate 53, strip reinforcing rib 54, lightening hole 55.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
As depicted in figs. 1 and 2, a kind of 100% low-floor tramcar body construction provided by the invention is stainless steel vehicle Body, including roof 1, side wall 2, headwall 3, chassis 4.It is welded with upper hinged mounting base 5 in roof 1, lower hinge is welded on chassis 4 Connect mounting base 6.In order to guarantee the structural strength and rigidity requirement of car body, the main part of car body, roof 1, side wall 2,3 and of headwall Chassis 4 is welded using stainless steel material, and the upper hinged mounting base 5 and lower hinged mounting base 6 of part then use carbon steel material Material is welded, to reinforce the structural strength of partial structurtes, the traction property of hinged mounting base 5 and lower hinged mounting base 6 in raising Energy.
Wherein, roof 1 is made of car roof skeleton 7, roof panels 8 and covering for roofs plate 10, and roof panels 8 are weldingly fixed on roof On skeleton 7, covering for roofs plate 10 is mounted on the two sides of roof panels 8, and covering for roofs plate 10 is mounted on above roof for blocking Equipment.
Car roof skeleton 7 is whole to be made of stainless steel material, by the car roof side-beam 11 of two sides and among car roof side-beam 11 Roof cross beam 12 and roof rail 13 splicing be welded, car roof side-beam 11, roof cross beam 12 and roof rail 13 have connection Place is welded to connect by L shape, T shape and criss-cross reinforcement connector, for improving the bonding strength of junction, is dropped simultaneously The stress level of low junction.It is equipped between two car roof side-beams 11 by bolt multiple for fixing roof apparatus (such as Pantograph etc.) mounting rail 14, mounting rail 14 along cross-car be arranged.Multiple third sliding slots are welded on car roof side-beam 11 52, the end of mounting rail 14 is bolted on third sliding slot 52.For the structural strength and rigidity for guaranteeing roof, subtract simultaneously Light weight, car roof side-beam 11, roof cross beam 12, roof rail 13 and mounting rail 14 are all made of stainless steel " mouth " ellbeam.
Glass-reinforced plastic material of the covering for roofs plate 10 using strength and stiffness function admirable and lighter in weight, covering for roofs plate 10 along car body length direction extend.As shown in figure 5, covering for roofs plate 10 is fixed by several brackets 15 and car roof skeleton 7 Connection, the generally L-shaped structure of bracket 15 are formed by stainless steel plate bending, and the cross section of bracket 15 is similarly L shape.In roof At least one first sliding groove 16 extended along vehicle body longitudinal direction is provided on the inner surface of outer cover plate 10, in the present embodiment, if Two first sliding grooves 16 up and down are equipped with, first sliding groove 16 is made with 10 one of covering for roofs plate of glass reinforced plastic, in car roof skeleton 7 Each bracket 15 is corresponded on car roof side-beam 11 and is provided with second sliding slot 17, and it is sliding that two side-by-side second is arranged in corresponding each bracket 15 Slot 17, second sliding slot 17 are welded on car roof side-beam 11.The vertical side of bracket 15 is fixedly connected on two by two bolts In first sliding groove 16, the horizontal side of bracket 15 is fixedly connected in two second sliding slots 17 by two bolts, to guarantee Bonding strength between bracket 15 and first sliding groove 16 and second sliding slot 17.
As shown in Figure 1, headwall 3 is welded by the headwall column 18 and end wall panel 19 of two sides, the top of headwall column 18 It is welded to connect respectively with car roof skeleton 7 and chassis 4 with bottom, end wall panel 19 is welded between two headwall columns 18, and headwall is vertical Column 18 and end wall panel 19, which surround, passes through region between two section compartments.3 structure of headwall is divided into headwall column 18 and end wall panel 19 Two parts are welded to connect again with headwall column 18 after can welding end wall panel 19 with roof panels 8, are conducive to during installation Simplify the production technology of headwall 3.
In the present embodiment, headwall column 18 and end wall panel 19 are formed by stainless steel plate bending, guarantee structural strength and Under the premise of rigidity, it can substantially mitigate the total weight of headwall 3.As shown in figure 3, it is L-shaped master that headwall column 18, which includes cross section, Body 18a all has the L shape flanging 18b of inside bending in the two sides of L shape main body 18a, puts down from top to bottom on L shape main body 18a Row is provided with several horizontally extending strip reinforcing ribs 54, strip reinforcing rib 54 and 18 integrated punching of headwall column at Type, for substantially reinforcing the structural strength and rigidity of headwall column 18 while meeting lightweight requirements.The present embodiment In, it is arranged in parallel with multiple stiffener plates 53 from top to bottom on headwall column 18, stiffener plate 53 is welded on headwall column 18 On, it is additionally provided with lightening hole in stiffener plate 53, it can be with loss of weight headwall 3 while guaranteeing 18 structural strength of headwall column Total weight.
Windscreen mounting base 20 also is stretched out to car body center position in the bottom of headwall column 18, for installing windscreen, windscreen Mounting base 20 is also formed by stainless steel plate bending, is made of a plate 20a and L-shaped flanging 20b, the side and end of plate 20a Wall column 18 is welded to connect.The main body of end wall panel 19 is a plate, has flanging, the flanging headwall with two sides respectively in its surrounding Column 18, roof panels 8 are welded to connect, and the flanging of 19 bottom of end wall panel is L shape, to increase its structural strength.
As depicted in figs. 1 and 2, side wall 2 is made of side wall outer cover plate 21, side wall panel (not shown) and side wall skeleton. Side wall panel is fixed on side wall skeleton, and side wall outer cover plate 21 uses glass epoxy, and side wall panel is fixed on by way of gluing knot On.
As shown in figure 4, side wall skeleton includes three side wall columns 22, vehicle window is provided on side wall, the top of vehicle window is under Fenestrate crossbeam 23 is arranged in side, and window crossbeam 23 is fixedly connected with three side wall columns 22.In the present embodiment, the window angle of side wall skeleton Place, the junction of especially side wall column 22 and window crossbeam 23 pass through stiffening plate 24 and are welded to connect, and stiffening plate 24 is according to installation The needs of position can be L shape or T shape, be both provided with stiffening plate 24, stiffening plate 24 and side wall column in the seam crossing of each connection It is fixedly connected by plug welding technique between 22 and window crossbeam 23, this structure is not only able to reduce the highest stress water at window angle It is flat, also side wall is made to meet requirement of strength design.
As shown in Fig. 2, in order to improve the overall structural strength of car body and rigidity, in the present embodiment, roof 1 and headwall 3 it Between and roof 1 and side wall 2 between by several reinforcing ribs 25 be welded to connect.The structure triangular in shape of reinforcing rib 25, and along vertical Histogram is provided with lightening hole 26 to setting on reinforcing rib 25, to mitigate car body total weight.Reinforcing rib 25 is correspondingly arranged at roof The end of crossbeam 12 and roof rail 13 is both provided with a reinforcement in the end of each roof cross beam 12 and roof rail 13 Muscle 25, reinforcing rib 25 are fixedly connected by welding with roof panels 8, car roof skeleton 7, end wall panel 19 or side wall panel simultaneously.Each Lightening hole 26 on reinforcing rib 25 can also provide the space of wiring while playing the role of loss of weight for the equipment of roof, both It can guarantee entire car body strength, rigidity and wiring space requirement, and be able to achieve the lightweight purpose of body construction.Body construction tool Have that intensity is good, rigidity is big, structure is simple.
Upper hinged mounting base 5 is welded by level board 5a and vertical panel 5b, is being stated between level board 5a and vertical panel 5b Multiple vertical stiffener plate 5c are welded, level board 5a is weldingly fixed on car roof skeleton 7.
The car body is installed on the top of bogie, in order to drop under the premise of guaranteeing chassis overall structural strength and rigidity The total weight of low chassis, meets the light-weighted requirement of vehicle, in the present embodiment, chassis 4 it is whole using stainless steel material welding and At.
As shown in Figure 2 and Figure 6, chassis 4 includes end carriage 27, the edge beam of underframe positioned at cross-car two sides of rear and front end 28, two stringers 29 and two groups of cover board compositions 30 being mounted among two edge beam of underframe 28.The two sides of end carriage 27 are welded and fixed On the edge beam of underframe 28 of two sides, in order to improve the transmission force property of chassis, in the present embodiment, two stringers are set in chassis 4 29, the preceding thing both ends of two stringers 29 are respectively welded on the end carriage 27 for being fixed on rear and front end.Two groups of cover board compositions 30 weld respectively It connects the stringer 29 for being fixed on respective side, on edge beam of underframe 28, is compartment gang way floor between two stringers 29, with adjacent compartment Floor is concordant.The stringer 29 of edge beam of underframe 28, two of end carriage 27, two and two groups of cover board compositions 30 longitudinally (refer to that car body is long with car body Spend direction) it is symmetrical arranged centered on center line.The part of the chassis 4 in bogie region uses modularized design, can be with it The corresponding region of its intermediate vehicle realizes that structure is exchanged, the versatility for simplifying production technology, improving maintenance.
As shown in Fig. 2, Fig. 6 and Fig. 8, in the present embodiment, stringer 29 is integrally in that middle section is upward along vehicle body longitudinal direction Curved " several " character form structures, to meet the space requirement of lower part bogie.In order to improve the structural strength and power transmission of stringer 29 Performance, the section of stringer 29 preferably use " II " shape, are welded by upper plate 29a, lower plate 29b and two side plate 29c splicings.On The end of plate 29a, lower plate 29b and two side plate 29c are welded to connect with former and later two end carriages 27 respectively, and preferably, upper plate 29a It at both ends is respectively in the "eight" shape structure extended out, to increase the welding between stringer 29 and end carriage 27 with lower plate 29b Area improves the bonding strength of stringer 29, further increases transmission force property.
Edge beam of underframe 28 includes former and later two parts, and the side rail configuration of two parts is identical, is all made of bar section of stainless steel knot Structure has profile cavity among it, and section is inverted L-shaped, to improve the structural strength and rigidity of edge beam of underframe 28, reduces welding Stress.
Multiple needle beams are respectively set between two stringers 29 and between stringer 29 and edge beam of underframe 28, further to increase Add the overall structural strength and rigidity of chassis 4.One is welded to connect between the edge beam of underframe 28 in stringer 29 and ipsilateral front First needle beam 31 is also welded to connect second needle beam 32 between the edge beam of underframe 28 at stringer 29 and ipsilateral rear, There are four needle beams for welding between two stringers 29, and the two sides positioned at the third needle beam 33 of front-end and back-end are respectively welded On the side surface of the stringer 29 of two sides, it is located in the middle the lower surface that two the 4th needle beams 34 are welded on the stringer 29 of two sides On, it is provided with sliding slot on the 4th needle beam 34, damper mounting base 35, the 4th needle beam have been bolted on the chute 34 are weldingly fixed on the lower surface of stringer 29 while can also offset the difference in height for being bent upwards and being formed among stringer 29, so that two Floor between a stringer 29 is concordant.First needle beam 31, the second needle beam 32, third needle beam 33 are all made of stainless steel bending Structure, section are U-shaped or Z-shaped.4th needle beam 34 by two L shape stainless steel plates and centre connecting plate welding form, with into One step improves the structural strength and rigidity of the 4th needle beam 34.4th needle beam 34 can also weld reinforcement with 29 junction of stringer Gusset is to further increase bonding strength.
As shown in Figure 2 and Figure 7, in the present embodiment, end carriage 27 preferably uses degree of lip-rounding beam, by upper and lower two U-shaped bending parts pair It connects and is welded, to improve the structural strength and transmission force property of end carriage 27, while increasing the company between lower hinged mounting base 6 Connect intensity.
The centre of end carriage 27 is provided with a c-shaped opening 36, the front end insertion of lower hinged mounting base 6 is mounted on C-shaped It in opening 36 and connects, the EDGE CONTACT of c-shaped opening 36 and lower hinged mounting base 6 cooperates, and is welded using border and realizes connection.Under Hinged mounting base 6 is whole trapezoidal, and the end portion width connecting with c-shaped opening 36 is greater than the end portion width of the other end, to increase Bonding area between hinged mounting base 6 and end carriage 27 down increases bonding strength.
As shown in figures 7 and 9, the assembling of lower hinged mounting base 6 for convenience, lower hinged mounting base 6 is using seperated knot Structure is made of preceding mounting base 37 and 38 butt welding of rear mounting base, is welded with two between preceding mounting base 37 and rear mounting base 38 A cant board 39 is provided with the mounting hole 40 for installing articulated mounting in rear mounting base 38.In lower hinged mounting base 6 Between there is opening up and down to facilitate installation articulated mounting while mitigating weight, two cant boards 39, which set up separately, to be open Two sides.
Preceding mounting base 37 generally I-shaped after welding, the horizontal sides and vertical edges of the front end of I-shaped and end The edge border of the c-shaped opening 36 of beam 27 is welded to connect.The assembling of lower hinged mounting base 6 for convenience, preceding mounting base 37 is by upper Lower two " T " shape structures part butt welding forms, and the vertical section of rear mounting base 38 is substantially U-shaped, preceding mounting base 37 and rear peace Dress seat 38 is provided with welding groove at the position of docking.
In the present embodiment, lower hinged mounting base 6 is made of carbon steel material, with the whole knot of hinged mounting base 6 under raising Structure strength and stiffness.The two " T " shape structure parts and rear mounting base 38 of preceding mounting base 37 are respectively adopted cast carbon steel and form, and guarantee Intensity and raising power transmission performance.Lower hinged 6 simple process of mounting base has good stiffness and strength, meets carrying It is required that and requirements of installation space.
As shown in Figure 2 and Figure 6, cover board composition 30 is to be simultaneously to provide suitable working space to bogie composition The seat installation of upper part provides enough strength and stiffness.Every group of cover board 30 structures of composition are identical, include cover board stringer group At 41 and the first cover board 42 and the second cover board 43 for installing seat.First cover board 42 is symmetrical arranged two along vehicle body longitudinal direction It is a, cross seat is installed, the second cover board 43 is mounted on the centre of two the first cover boards 42, the second cover board 43 on the first cover board 42 It is installed higher than the first cover board 42, longitudinal seat is installed on the second cover board 43.Cover board stringer composition 41 is used for chassis and car body side Wall skeleton connects, the first cover board 42, the second cover board 43 side be weldingly fixed on cover board stringer composition 41 on.
Cover board stringer composition 41 is made of stringer 41a under cover board upper longitudinal beam (not shown) and cover board, cover board upper longitudinal beam It is arranged in parallel with stringer 41a under cover board, is provided with multiple first vertical beams 44 between stringer 41a under stringer and cover board on the cover board, The rear and front end of stringer 41a passes through the second vertical beam 45 respectively and is welded to connect with edge beam of underframe 28 under cover board.
Stringer 29a is formed by stainless steel plate bending under cover board upper longitudinal beam and cover board, and the section of cover board upper longitudinal beam is inverted L-shaped, The section of stringer 29a is U-shaped under cover board.The section of first vertical beam 44 is U-shaped.While mitigating weight, cover board can be improved The structural strength and rigidity of stringer composition 41.
First cover board 42 is made of upper cover plate 42a, first end plate, the second end plate 42b, side plate 42c, first end plate, second The corresponding rear and front end that upper cover plate 42a is set end plate 42b, upper cover plate 42a, first end plate, the second end plate 42b, side plate 42c is formed by stainless steel plate bending, upper cover plate 42a be integrally in it is step-like, with cooperate lower section each component of bogie installation.Side The bottom of plate 42c is weldingly fixed on the upper plate 29a of stringer 29, and the rear and front end of side plate 42c is respectively welded with third vertical beam 46, the The bottom of three vertical beams 46 is also welded on the upper plate 29a of stringer 29.Another side of first end plate and the welding of the second vertical beam 45 connect It connects, the side of upper cover plate 42a, which is welded to connect, on stringer 29a, meets seat bearing requirements under cover board.
Second cover board 43 is made of cover board 43a, forward and backward end plate 43b, side plate 43c and bottom plate 43d, cover board 43a, forward and backward End plate 43b, side plate 43c, bottom plate 43d formed by stainless steel plate bending.The bottom of forward and backward end plate 43b and the first cover board 42 Upper cover plate 42a be welded to connect, the side of forward and backward end plate 43b and the first vertical beam 44 are welded to connect, forward and backward end plate 43b's Stiffening plate 47 is also welded between the other side and upper cover plate 42a.The side of cover board 43a and the first vertical beam 44 and cover board upper longitudinal beam are welded It connects in succession.Side plate 43c is T shape, is welded to connect with upper cover plate 42a, the second end plate 42b.Bottom plate 43d and the second end plate 42b and vertical Beam 29 is welded to connect, and bottom plate 43d is concordant with gang way floor.It is additionally provided on the upper surface of cover board 43a by crossbeam and stringer group At be in netted panting beam 48, improve the vertical stiffness of the second cover board 43, meet seat bearing requirements.
The side towards car body longitudinal centre line of stringer 29 is provided with lateral backstop mounting base 51, in opposite side It is provided with lateral damper mounting base 49, is provided with drawing pull bar mounting base 50 on the lower surface thereof.
Undercarriage structure of the invention integrally uses high-strength stainless steel material, and structure is light sheet bending part, not only ensure that The installation space of bogie, meets the space requirement of the seating posture of passenger, also light-weight, intensity is high, rigidity is big, transmission force property Good advantage.The Undercarriage structure can guarantee that all floor levels of car body area are not higher than 350mm, and passability is strong.
As described above, the plan content in conjunction with given by attached drawing, can derive similar technical solution.But it is all not take off Content from technical solution of the present invention, according to the technical essence of the invention it is to the above embodiments it is any it is simple modification, etc. With variation and modification, all of which are still within the scope of the technical scheme of the invention.

Claims (14)

  1. Be stainless steel car body 1. a kind of 100% low-floor tramcar body construction, including roof, side wall, headwall, chassis, on Hinged mounting base and lower hinged mounting base, it is characterised in that: the roof is by car roof skeleton, roof panels and covering for roofs board group At the roof panels are fixed on car roof skeleton, and the covering for roofs plate is mounted on the two sides of roof panels, and the headwall is by two sides Headwall column and centre end wall panel composition, the top and bottom of the headwall column connect with roof and welding of underframe respectively It connects, the end wall panel is welded between two headwall columns, and the side wall is by side wall outer cover plate, side wall panel and side wall skeleton group At the side wall panel is fixed on side wall skeleton, and the side wall outer cover plate is fixed in side wall panel, between the roof and headwall And be welded to connect by several reinforcing ribs between roof and side wall, lightening hole, the bottom are provided on the reinforcing rib Frame includes the end carriage of rear and front end, the edge beam of underframe of two sides, two stringers and two groups of cover board compositions, the two sides welding of the end carriage It is fixed on the edge beam of underframe of two sides, two stringers are arranged in parallel between two edge beam of underframe, the both ends of the stringer It is respectively welded on the end carriage for being fixed on rear and front end, the stringer for being fixed on respective side is respectively welded in the composition of cover board described in two groups On edge beam of underframe, lower hinged mounting base is respectively welded on two end carriages.
  2. 2. a kind of 100% low-floor tramcar body construction according to claim 1, it is characterised in that: the headwall Column and end wall panel are formed by stainless steel plate bending.
  3. 3. a kind of 100% low-floor tramcar body construction according to claim 2, it is characterised in that: the headwall Column includes that cross section is L-shaped body, the L shape flanging of inside bending is all had in the two sides of L shape main body, in L-shaped master Several strip reinforcing ribs are provided on body.
  4. 4. a kind of 100% low-floor tramcar body construction according to claim 3, it is characterised in that: at the end It is welded with multiple stiffener plates on wall column in parallel from top to bottom, is provided with lightening hole in the stiffener plate.
  5. 5. a kind of 100% low-floor tramcar body construction according to claim 1, it is characterised in that: in the side It is welded to connect by stiffening plate at the window angle of wall skeleton, is connected between the stiffening plate and side wall skeleton by the way that plug welding technique is fixed It connects.
  6. 6. a kind of 100% low-floor tramcar body construction according to claim 1, it is characterised in that: the roof Outer cover plate is fixedly connected by several brackets with car roof skeleton, and the bracket is L shape, in the inner surface of the covering for roofs plate On be provided at least one first sliding groove extended along vehicle body longitudinal direction, the bracket correspond on the car roof skeleton and is arranged There is second sliding slot, the two sides of the bracket are bolted to connection in first sliding groove and second sliding slot respectively.
  7. 7. a kind of 100% low-floor tramcar body construction according to claim 1, it is characterised in that: the roof Skeleton is welded by the car roof side-beam of two sides and the splicing of the roof cross beam among car roof side-beam and roof rail, at two Multiple mounting rails for being used to fix roof apparatus are equipped with by bolt between car roof side-beam, the reinforcing rib is correspondingly arranged at vehicle The end of head piece and roof rail.
  8. 8. a kind of 100% low-floor tramcar body construction according to claim 1, it is characterised in that: the upper hinge It connects mounting base to be welded by level board and vertical panel, multiple vertical reinforcing ribs is welded between the level board and vertical panel Plate, the level board are weldingly fixed on the car roof skeleton.
  9. 9. a kind of 100% low-floor tramcar body construction according to claim 1, it is characterised in that: the cover board Composition is formed by stainless steel plate bending.
  10. 10. a kind of 100% low-floor tramcar body construction according to claim 1, it is characterised in that: the stringer Section be " II " shape, be welded by upper plate, lower plate and the splicing of two side plates.
  11. 11. a kind of 100% low-floor tramcar body construction according to claim 1, it is characterised in that: the stringer It is integrally in " several " character form structure that middle section is bent upwards along vehicle body longitudinal direction.
  12. 12. a kind of 100% low-floor tramcar body construction according to claim 1, it is characterised in that: the end carriage Centre be provided with c-shaped opening, the end insertion of the lower hinged mounting base, which is mounted in the c-shaped opening, to be welded to connect.
  13. 13. a kind of 100% low-floor tramcar body construction according to claim 12, it is characterised in that: under described Hinged mounting base is seperated structure, is made of preceding mounting base and rear mounting base butt welding, in the preceding mounting base and rear peace Multiple cant boards are welded between dress seat, are provided with mounting hole in the rear mounting base.
  14. 14. a kind of 100% low-floor tramcar body construction according to claim 1, it is characterised in that: the cover board Composition includes cover board stringer composition and the first cover board and the second cover board for installing seat, and first cover board is along length over ends of body Direction is symmetrical arranged two, and second cover board is mounted on the centre of two the first cover boards, the cover board stringer composition and side wall Be fixedly connected, first cover board, the second cover board side be weldingly fixed on cover board stringer composition on.
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CN108791338B (en) * 2018-05-23 2020-01-10 中车唐山机车车辆有限公司 Rail vehicle
CN109383552B (en) * 2018-09-06 2020-04-14 中车青岛四方机车车辆股份有限公司 Rail vehicle
CN109263670B (en) * 2018-11-16 2021-02-05 中车株洲电力机车有限公司 Low-floor rail vehicle roof and low-floor rail vehicle
CN110667628B (en) * 2019-10-28 2020-09-18 中铁高新工业股份有限公司 Car body chassis and have its tram
CN110773896B (en) * 2019-11-12 2020-11-17 河北京车轨道交通车辆装备有限公司 Method for controlling deformation of 100% low-floor modern tramcar aluminum alloy body
CN110789549B (en) * 2019-11-13 2020-10-27 中铁高新工业股份有限公司 End wall structure and tramcar with same
CN115123322A (en) * 2022-08-16 2022-09-30 中车唐山机车车辆有限公司 Low-floor train, modular wheel cover and processing technology thereof

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