CN108316069A - Hanging type aerial track girder and its processing method - Google Patents
Hanging type aerial track girder and its processing method Download PDFInfo
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- CN108316069A CN108316069A CN201810281430.3A CN201810281430A CN108316069A CN 108316069 A CN108316069 A CN 108316069A CN 201810281430 A CN201810281430 A CN 201810281430A CN 108316069 A CN108316069 A CN 108316069A
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- track girder
- epiplastron
- pedal
- web
- bottom web
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/22—Tracks for railways with the vehicle suspended from rigid supporting rails
- E01B25/24—Supporting rails; Auxiliary balancing rails; Supports or connections for rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to field of track traffic, and in particular to a kind of hanging type aerial track girder and its processing method.Present invention seek to address that piece is set to track girder poor mechanical property, the problem of safety difference and rolling difficulty in the middle part of top plate in the prior art, the track girder of the present invention includes top plate, top plate both sides are respectively arranged with web, web includes epiplastron and bottom web, it is provided with pedal below bottom web, top plate and epiplastron are integrated roll forming, and the pedal of bottom web and corresponding side is integrated roll forming, and epiplastron is fixedly connected with the bottom web of corresponding side.Preferably, epiplastron and bottom web are fixed by welding manner.The stress of such structure, edge joint position is minimum, and piece is arranged in the middle part of web, reduces the size of track girder rollformed section, reduces the requirement to production equipment ability, reduces rolling difficulty.Therefore, solve the problems, such as that the poor mechanical property of track girder, safety difference and rolling are difficult in the prior art.
Description
Technical field
The invention belongs to field of track traffic, and in particular to a kind of hanging type aerial track girder and its processing method.
Background technology
Currently used for the track girder of hanging type aerial track train walking, majority is welded by the steel plate splicing of different size
Made of.The steel plate of different size first carries out cutting stock on monoblock steel plate, and the steel plate of well cutting is stitched together progress again
It is welded and fixed and forms track girder.In different size blanking process, leftover pieces waste is serious, and stock utilization is low, and spells
Welding seam quantity is more, and wlding consumption is big, and different size steel plate cutting, splicing process process are complicated, and the production cycle is long, and
And deflection is big after piece welding, needs a large amount of anti-deformation tool during welding, needs largely to be corrected after welding
Work, therefore manufacturing cost is higher.In addition, splicing welding joint is excessive, the welding residual stress of track girder itself is larger, track girder
Strength and stability is relatively poor, and there are some potential safety problemss.
As an improvement patent (CN 106812035A) discloses a kind of combined type overhead monorail traffic track beam, it
Including the first track beam body and the second track beam body, the first track beam body and the second track girder body combination are whole at one
Track beam body；The first track beam body and the second track beam body includes track beam web, track girder top
The edge of a wing outside the edge of a wing and track girder bottom in the interior edge of a wing, track girder bottom；The first track beam body and the second track girder master
Body is all made of roll forming.As can be seen that track girder is divided into two parts by the program distinguishes roll forming, two-part splice bits
Install and be placed on the top plate of track girder, due to the design feature of overhead monorail track girder, track beam section at stitching position by
Power is complicated, and stress concentration is linearly distributed in commissure, poor mechanical property, and it is broken that track girder has larger unstability in the operating condition
Bad risk, safety are poor.In addition, the two-part size in left and right that track girder is divided by piece is larger, due to production equipment energy
Power is limited, and there are bigger difficulty for two parts rolling of program track girder.
Correspondingly, this field needs a kind of new technical solution to solve the above problems.
Invention content
In order to solve the above problem in the prior art, in order to solve the track girder mechanics that piece is set in the middle part of top plate
The problem of poor performance, safety difference and rolling difficulty, the present invention provides a kind of hanging type aerial track girder, the track girders
Including top plate, the both sides of the top plate are respectively arranged with web, and the web includes epiplastron and bottom web, the bottom web
Lower section is provided with pedal, wherein the top plate and the epiplastron are integrated roll forming, the institute of the bottom web and corresponding side
It states pedal and is integrated roll forming, the epiplastron is fixedly connected with the bottom web of corresponding side.
In the optimal technical scheme of above-mentioned track girder, the bottom web of the epiplastron and corresponding side passes through welding
Mode is fixedly connected.
In the optimal technical scheme of above-mentioned track girder, the docking site of the epiplastron and the bottom web is respectively set
There are the first groove face and the second groove face, first groove face and described the after the epiplastron and bottom web assembling
Two groove faces form groove, wherein first groove face and second groove face roll the epiplastron and it is described under
Straight forming during web.
In the optimal technical scheme of above-mentioned track girder, the groove is double groove, the interior side slope of the double groove
Bicker degree is more than outside bevel angle.
In the optimal technical scheme of above-mentioned track girder, the track girder further includes ribs unit, the ribs list
Member is set on the outside of the welding point formed after the bottom web welding of the epiplastron and corresponding side, the ribs unit
Including several ribs, several described ribs are evenly or unevenly distributed along the length direction of the track girder.
In the optimal technical scheme of above-mentioned track girder, the bottom of the pedal is arranged along the length direction of the track girder
There are pedal ribbed panel, the pedal ribbed panel, the pedal and the bottom web of corresponding side to be integrated roll forming.
In the optimal technical scheme of above-mentioned track girder, the track girder further includes rib hoop unit, the rib hoop unit packet
It includes the top plate ribbed stiffener being set on the outside of the top plate, be set to the web ribbed stiffener of the web outside and pedal is put more energy into
Rib, wherein the pedal ribbed stiffener includes being respectively arranged at ribbed stiffener and setting on the outside of the pedal on the outside of the pedal ribbed panel
Ribbed stiffener on the inside of pedal on the inside of the pedal ribbed panel.
It will be appreciated to those of skill in the art that in the preferred embodiment of the present invention, due to the stress model of track girder
Neutral line for freely-supported beam model, track girder is located at web central region, and stress is minimum herein, by the web of track girder from middle part
It is divided into epiplastron and bottom web, top plate and the epiplastron one roll forming for being set to top plate both sides, bottom web and corresponding side
Pedal one roll forming, epiplastron are fixedly connected with bottom web by welding manner.It is arranged through this structure, makes track
The piece of beam is in the position of track girder upper stress minimum, the risk that unstable failure occurs herein is reduced, to solve rail
Piece is arranged in the middle part of top plate road beam and the poor mechanical property, the problem of safety difference that generate.In addition, weld seam is set to abdomen
In the middle part of plate, the size of rollformed section in the track girder operation of rolling is reduced, to reduce rolling difficulty and to rolling
The requirement of equipment rolling power, thereby reduces manufacturing cost.It is applied in addition, the track girder of splicing form transports to convenient for assembled part
Work scene carries out assembly, can reduce the difficulty of whole Transporting.
On the other hand, the present invention provides a kind of processing method of hanging type aerial track girder, the method includes such as
Lower step：There is provided the first component of integrated roll forming, the first component includes top plate and is respectively arranged at the top plate
The epiplastron of both sides；The second component of integrated roll forming is provided, the second component include with the epiplastron it is matched under
Web and the pedal being set to below the bottom web；The epiplastron is fixedly connected with the bottom web of corresponding side.
It is described " by the bottom web of the epiplastron and corresponding side in the optimal technical scheme of above-mentioned processing method
Be fixedly connected " the step of be specially：The epiplastron is fixedly connected by welding with the bottom web of corresponding side.
In the optimal technical scheme of above-mentioned processing method, the method further includes following steps：The epiplastron with
The outside setting ribs unit of the welding point formed after the bottom web welding of corresponding side；In the top plate, the abdomen
The rib hoop unit is arranged in the outside of plate and the pedal.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, first by first component (including
Top plate and the epiplastron for being set to top plate both sides) and second component (including bottom web and pedal for being set to below bottom web)
Epiplastron, is then fixedly connected by integrated roll forming respectively by welding with bottom web.Preferably, epiplastron with
The outside setting ribs unit of the welding point formed after the bottom web welding of corresponding side.Spelling is welded afterwards by using first rolling
The manufacturing method of dress, simplifies the manufacturing process of track girder, while reducing welding job amount, to reduce manufacturing cost.
Assembly is carried out in addition, splicing the track girder of form and transporting construction site to convenient for assembled part, the difficulty of whole Transporting can be reduced.
Description of the drawings
The preferred implementation of the present invention is described with reference to the accompanying drawings and in conjunction with by welding manner assembled fixed track girder
Mode, in attached drawing：
Fig. 1 is the cross-sectional view of existing track girder and suspension arrangement assembling structure；
Fig. 2 is status diagram of the existing track girder under load effect；
Fig. 3 is the direct stress analysis chart that existing track girder acts on bottom web in load；
Fig. 4 is the Bending Moment Analysis figure that existing track girder acts on bottom web in load；
Fig. 5 is the Analysis of Shearing figure that existing track girder acts on bottom web in load；
Fig. 6 is the cross-sectional view before assembly after the track beam body of an embodiment of the present invention is assembled；
Fig. 7 is the enlarged diagram of part A in Fig. 6；
Fig. 8 is the cross-sectional view of the track girder of an embodiment of the present invention；
Fig. 9 is the exploded view of the track girder of an embodiment of the present invention；
Figure 10 A be an embodiment of the present invention track girder in ribs the first structural schematic diagram；
Figure 10 B be an embodiment of the present invention track girder in ribs second of structural schematic diagram；
Figure 10 C be an embodiment of the present invention track girder in ribs the third structural schematic diagram；
Figure 10 D be an embodiment of the present invention track girder in ribs the 4th kind of structural schematic diagram；
Figure 11 is the step flow chart of the manufacturing method of the track girder of an embodiment of the present invention.
Reference numerals list：
11, top plate；12, web；121, epiplastron；122, bottom web；13, pedal；14, pedal ribbed panel；15, groove；
151, the first groove face；152, the second groove face；16, weld seam；17, ribs；171, welding hole is crossed；181, top ribbed stiffener；
182, web ribbed stiffener；183, ribbed stiffener on the outside of pedal；184, ribbed stiffener on the inside of pedal；2, bogie；3, traveling wheel；4, neutral
Layer.
Specific implementation mode
It will be apparent to a skilled person that this section embodiment is used only for explaining the technical principle of the present invention,
It is not intended to limit protection scope of the present invention.For example, although the present invention is with by the assembled fixed track girder of welding manner
Explanation is introduced, but the mode that is fixedly connected of track girder assembly part can also be other suitable modes, this field
Technical staff can as needed make adjustment to it, and to adapt to specific application scenario, such as part to be assembled can pass through
It the forms such as is bolted, rivets to be fixedly connected, the technical solution after adjustment will fall into protection scope of the present invention.
It should be noted that in the description of the present invention, the instructions such as term "upper", "lower", "left", "right", "inner", "outside"
The term of direction or position relationship is direction based on ... shown in the drawings or position relationship, this is intended merely to facilitate description, without
It is instruction or implies that described device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as limitation of the present invention.Also, term " first ", " second ", " third " are used for description purposes only, and should not be understood as
Instruction implies relative importance.
In addition it is also necessary to explanation, in the description of the present invention unless specifically defined or limited otherwise, term " peace
Dress ", " setting ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection；Can be straight
Connect it is connected, can also be indirectly connected through an intermediary.To those skilled in the art, on can understanding as the case may be
State the concrete meaning of term in the present invention.
Referring to Figure 1 to Figure 7, Fig. 1 is the cross-sectional view of existing track girder and suspension arrangement assembling structure, and Fig. 2 is existing
It is the direct stress analysis that existing track girder acts on bottom web in load to have status diagram of the track girder under load effect, Fig. 3
Figure, Fig. 4 are the Bending Moment Analysis figures that existing track girder acts on bottom web in load, and Fig. 5 is that existing track girder acts on lower abdomen in load
The Analysis of Shearing figure of plate, Fig. 6 are the cross-sectional view before assembly, figure after the track beam body of an embodiment of the present invention is assembled
7 be the enlarged diagram of part A in Fig. 6.As depicted in figs. 1 and 2, track girder in practical applications, hanging type aerial track column
Traveling wheel 3 is provided on the bogie 2 of vehicle, traveling wheel 3 is walked on the pedal 13 of track girder.The load of track train in the air
Under the collective effect of track girder dead weight, it is bent downwardly in the middle part of track girder.At this point, will be generated inside track girder more complicated
Internal stress.In order to improve the mechanical property and bearing capacity of track girder, extends its service life, needed in the design phase of track girder
It will be according to internal stress situation of the track girder under load and the collective effect of dead weight come the structure of reasonable design.Fig. 3 to Fig. 5 is analyzed
Show the stress distribution situation of the web 12 of track girder.As shown in figure 3, web 12 is answered in the compression of 4 above section of neutral line
Power, neutral line 4 deviate neutral line 4 with lower part tension stress, and on web 12 and are answered apart from bigger position compression and drawing
Power is bigger；As shown in figure 4, the moment of flexure that the middle part of web 12 is subject to is maximum；As shown in figure 5, at the middle part of vertical direction web 12
Shearing it is also minimum；Therefore, the internal stress at 12 middle part of web is minimum.As shown in fig. 6, the track girder of the present invention is in web 12
Piece is arranged in middle part, to which track girder is divided into first part, second part and Part III.First part includes 11 He of top plate
It is set to the epiplastron 121 of 11 both sides of top plate, second part is identical with Part III, including corresponding with epiplastron 121
Bottom web 122, the pedal ribbed panel 14 positioned at the pedal 13 of 122 lower section of bottom web and positioned at 13 lower section of pedal, first
Divide, second part and Part III pass through welding manner by roll forming, epiplastron 121 and bottom web 122 respectively and fix company
It connects, to which first part, second part are fixedly connected with Part III and form track girder.It should be noted that web 12
Middle part refers to neutral line 4 and its nearby position in small range region.
It is arranged through this structure, the piece on track girder is located at the smaller position of stress, reduces track girder and is spelling
The risk that unstable failure occurs at seam, to improve mechanical property and the safety of track girder.In addition, piece is arranged in abdomen
The middle part of plate 12 reduces the size of rollformed section in track girder, and difficulty is rolled and to rolling equipment to reduce
The requirement of rolling power, thereby reduces manufacturing cost.Epiplastron 121 and bottom web 122 are fixed by welding manner, it can
So that the splicing part of track girder is formed as stable integral structure, improves the integral rigidity of track girder.In addition, due to welding material
The mechanical property of material is better than base material, and therefore, the good mechanical properties of piece, intensity is higher, is splicing to reduce track girder
The risk of unstable failure occurs for position, extends the service life of track girder.In addition, the pedal ribbed panel of 13 bottom of pedal setting
14, the strength and stiffness of pedal 13 are enhanced, the bending resistance of pedal 13 is enhanced on the length direction of pedal 13.This field
For technical staff it is understood that the quantity of pedal ribbed panel 14 is not limited solely to one, the bottom of each pedal 13 can be with
It is needed that two or a plurality of pedal ribbed panel 14 is arranged according to intensity.Those skilled in the art will also be appreciated that track girder
It can also be not provided with pedal ribbed panel 14 according to actual needs, second part and Part III include bottom web 122 and step at this time
Plate 13.
Preferably, as shown in fig. 7, epiplastron 121 divides before being fixedly connected by welding manner with bottom web 122 in connecting pin
It is not provided with the first groove face 151 and the second groove face 152, the first groove face 151 after epiplastron 121 and bottom web 122 assemble
Groove 15 is formed with the second groove face 152.In first part, second part and the Part III operation of rolling, the first groove face
151 and 152 direct rolling and forming of the second groove face.By 152 direct rolling and forming of the first groove face 151 and the second groove face,
Reduce first part, second part and Part III to be also needed to after roll forming through edge planer, edge milling machines, beveling machine etc.
The process that machining process processes the first groove face 151 and the second groove face 152, so as to avoid a large amount of processing is occupied
Equipment and human and material resources, shorten the manufacturing cycle, create a further reduction manufacturing cost.In addition, in epiplastron 121 and lower abdomen
Groove 15 can make welding arc go deep into welding point root in 122 welding process of plate, ensure weldment root through welding to ensure
Welding quality；Meanwhile playing the role of adjusting base metal and filling metal ratio, the mechanical property of weld seam is improved, into
Improve welding quality to one step.
With further reference to Fig. 7, groove 15 is double groove, and specifically, groove 15 is double V grooves, the interior side slope of groove 15
Mouth angle [alpha] 1 is more than outside bevel angle α 2.Preferably, the inside groove depth h1 of groove 15 is more than outside groove depth h2.
In welding process, first groove 15 inside bevel angle be α 1 side carry out first layer welding, then from bevel angle be α 2
Side carry out back chipping, the groove depth of both sides is almost the same after back chipping, then carries out alternately welding in the both sides of groove 15.
Divided edge structure design in this way, reduces the depth difference of 15 both sides of groove in alternately welding process, makes the welding of both sides
Shrinkage and radiating efficiency reach unanimity, and cause both sides to be welded because radiating efficiency difference is larger so as to avoid in alternately welding process
It connects shrinkage unevenness and larger angular deformation situation occurs, follow-up a large amount of correction work is avoided, to further reduce
Production cost.In addition, the weld metal volume of filling inside groove is more than the weld metal of filling outside groove, weld metal
Mechanical property be better than base material, therefore improve welding point resist the outside lateral bend of web ability.Those skilled in the art
It is understood that groove 15 can also use double U grooves, UV grooves etc. or other suitable groove types.
It is the cross-sectional view of the track girder of an embodiment of the present invention with reference to Fig. 8, Fig. 9, Figure 10 A to Figure 10 D, Fig. 8,
Fig. 9 is the exploded view of the track girder of an embodiment of the present invention, Figure 10 A be an embodiment of the present invention track girder in ribs
The first structural schematic diagram, Figure 10 B be an embodiment of the present invention track girder in ribs second of structural schematic diagram,
Figure 10 C be an embodiment of the present invention track girder in ribs the third structural schematic diagram, Figure 10 D are of the invention a kind of
4th kind of structural schematic diagram of ribs in the track girder of embodiment.Preferably, as shown in Figure 8 and Figure 9,15 quilt of groove after welding
Welding metal fills and is formed as weld seam 16, and ribs unit is provided on the outside of welding point, if ribs unit includes
Dry ribs 17, several ribs 17 are uniformly distributed along the length direction of track girder, several ribs 17 are welded and fixed
To web 12.By the setting of ribs 17, the strength and stiffness of edge joint position are further enhanced, rail can be effectively prevented
In edge joint position unstable failure occurs for road beam.Preferably, track girder further includes rib hoop unit, and rib hoop unit includes being set to top plate 11
The top plate ribbed stiffener 181 in outside, the web ribbed stiffener 182 and pedal ribbed stiffener for being set to 12 outside of web, pedal ribbed stiffener
Including being respectively arranged at ribbed stiffener 183 on the outside of the pedal in 14 outside of pedal ribbed panel and being set to stepping on for 14 inside of pedal ribbed panel
Ribbed stiffener 184 on the inside of plate, top plate ribbed stiffener 181, web ribbed stiffener 182, ribbed stiffener on the inside of ribbed stiffener 183 and pedal on the outside of pedal
184 are welded and fixed on track girder.
By the setting of rib hoop unit, the rigidity of top plate 11, web 12, pedal 13 is improved, and then improves track girder
Overall stiffness and intensity, to prevent track girder from creeping in the long-term use, the service life of advancing the track beam.
Meanwhile the setting of rib hoop unit also improves web 12 and integrally resists the ability to flip to the outside with pedal 13, avoids piece
The increased generation because of web 12 and whole flip to the outside of pedal 13 of the torque at place, further improves the mechanical property of track girder
Energy.It will be appreciated by persons skilled in the art that several ribs 17 can also be along uneven point of the length direction of track girder
Cloth.
As shown in Figure 10 A, ribs 17 was provided with welding hole 171 with 16 contact site of weld seam.Ribs 17 and excessively welding hole
171 profile is rectangle.Preferably, as shown in Figure 10 B, it is fallen with the rectangle sharp corner for crossing welding hole 171 in ribs 17
Angle transition.Further preferably, as illustrated in figure 10 c, by the outer profile of ribs 17 further rounding off and form circular arc
Shape.Further preferably, as shown in Figure 10 D, by cross welding hole 171 profile further rounding off and form arc-shaped.It is logical
It crosses on ribs 17 and welding hole 171 was set, avoid to be formed after ribs 17 is welded and fixed and intersect weld seam and intersection weld seam
Caused by stress concentration, and then improve the weld strength and mechanical property of track girder.Transition is carried out by chamfering, circular arc, it is weak
The stress concentration on ribs 17 is changed, to improve the intensity of ribs 17.
The manufacturing method of track girder is introduced with reference to Figure 11.Figure 11 is the system of the track girder of an embodiment of the present invention
Make the step flow chart of method.
As shown in figure 11, the manufacturing method of hanging type aerial track girder of the invention includes mainly：Step S100, rolls respectively
First component processed and second component；Epiplastron and bottom web are welded and fixed connection by step S200；Step S300, the weldering of web
Ribs unit is welded on the outside of connector；Step S400 welds rib hoop unit on track girder.
In the step s 100, first component includes top plate 1 and is set to two epiplastrons 121 of 1 both sides of top plate, the second structure
Part includes with 121 matched bottom web 122 of epiplastron and being set to the pedal 13 of 122 lower part of bottom web.The first structure is rolled respectively
The process of part and second component is specially：Steel billet for rolling first component is sent into the milling train of rolling first component, is rolled
The steel billet of first component processed forms first component after mill milling；Steel billet for rolling second component is sent into rolling the
In the milling train of two components, the steel billet for rolling second component forms second component after rolling.Those skilled in the art can manage
Solution is sent into steel billet before milling train rolled, and can first will again be sent after heating steel billet to the temperature for meeting hot rolling to rolling
It is rolled in machine.Those skilled in the art will also be appreciated that the operation of rolling can be that steel billet is first passed through shape after roughing
At semi-finished product, final finished is formed using finish rolling, can also be that steel billet is passed through into roll forming of milling train.
In step s 200, first the first component of roll forming and second component are assembled to weld, so
The bottom web in the epiplastron and second component in first component is welded and fixed together using welding equipment afterwards.Preferably,
It is formed with the first groove face 151 and the second groove face 152, the first groove face in the connecting portion of epiplastron 121 and bottom web 122
151 and second straight forming during step S100 rolling first component and second component of groove face 152.Art technology
Personnel can assemble anti-deformation tool as needed it is understood that in first component and second component assembling process,
Corresponding anti-deformation tool is removed after the completion of welding, by the assembly of anti-deformation tool, welding deformation amount can be reduced.It is preferred that
Ground, epiplastron 121 and bottom web 122 can also increase stress release process after being welded and fixed.Those skilled in the art can be with
Understand, stress may be used the methods of heat treatment, vibration stress relief treatment, long-time ageing treatment and carry out stress release.
In step S300, track girder further includes ribs unit, and ribs unit is set to epiplastron and corresponding side
On the outside of the welding point formed after bottom web welding, ribs unit includes several ribs 17, several ribs are along rail
The length direction of road beam is evenly distributed.After epiplastron 121 and bottom web 122 are welded and fixed, assembled on the outside of welding point
And weld ribs 17.
In step S400, track girder further includes rib hoop unit, and rib hoop unit includes the top for being set to 11 outside of top plate
Ribbed stiffener 181, the web ribbed stiffener 182 for being set to 12 outside of web, the pedal outside being set on the outside of pedal ribbed panel 14 add
Strength rib 183 and the pedal inside ribbed stiffener 184 for being set to 14 inside of pedal ribbed panel.First top ribbed stiffener 181, web are put more energy into
Ribbed stiffener 183 and pedal inside ribbed stiffener 184 are fixed to the corresponding position of track girder on the outside of rib 182, pedal, then securely by it
It is welded on track girder.
It can be seen from the above description that in the preferred technical solution of the present invention, track girder passes through in web 12
Portion is arranged piece and track girder is made to be divided into first part, second part and Part III, and first part includes top plate 11 and setting
Epiplastron 121 in 11 both sides of top plate, second part is identical with Part III, including lower abdomen corresponding with epiplastron 121
Plate 122, the pedal ribbed panel 14 positioned at the pedal 13 of 122 lower section of bottom web and positioned at 13 lower section of pedal, epiplastron 121 is under
Web 122 forms track girder by so that first part is connect integral with second part and Part III respectively by being welded and fixed.
The position for avoiding that stress is larger in track girder at the middle part of web 12 is arranged in piece, to improve the mechanical property of track girder
Energy and safety solve track girder and piece are arranged to the poor mechanical property, safety difference generated at 11 middle part of top plate
Problem；Meanwhile the size of rollformed section in track girder is reduced, the difficulty of roll forming is reduced, to reduce system
Cause this.Preferably, the first groove face 151 and the second slope are respectively arranged in the docking site of epiplastron 121 and bottom web 122
Mouthful face 152 and form groove 15, the first groove face 151 and the second groove face 152 are in first part, second part and Part III
Straight forming in the operation of rolling reduces the manufacturing procedure of the first groove face 151 and the second groove face 152, so as to avoid accounting for
With a large amount of process equipment and human and material resources, the manufacturing cycle is shortened, reduces manufacturing cost.
In the optimal technical scheme of the manufacturing method of the track girder of the present invention, first component and second component are first rolled；It will
The bottom web 122 in epiplastron 121 and second component in first component is welded and fixed connection.Preferably, in the weldering of web 12
Welding ribs unit is to improve the intensity of edge joint position between epiplastron 121 and bottom web 122 on the outside of connector.By using elder generation
Assembled manufacturing method is welded after rolling, the manufacturing process of track girder is simplified, while reducing welding job amount, to reduce
Manufacturing cost.
Therefore above example only expresses embodiments of the present invention, the description thereof is more specific and detailed, but can not be
And it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art, not
Under the premise of being detached from present inventive concept, various modifications and improvements can be made, these are all within the scope of protection of the present invention.Cause
This, protection scope of the present invention should be subject to attached claim.
Claims (10)
1. a kind of hanging type aerial track girder, which is characterized in that the track girder includes top plate, and the both sides of the top plate are set respectively
It is equipped with web, the web includes epiplastron and bottom web, and pedal is provided with below the bottom web,
Wherein, the top plate and the epiplastron are integrated roll forming, and the pedal of the bottom web and corresponding side is one
The bottom web of body roll forming, the epiplastron and corresponding side is fixedly connected.
2. track girder according to claim 1, which is characterized in that the epiplastron and the bottom web of corresponding side pass through
The mode of welding is fixedly connected.
3. track girder according to claim 2, which is characterized in that the docking site of the epiplastron and the bottom web point
Be not provided with the first groove face and the second groove face, the epiplastron and the bottom web assembling after first groove face and
Second groove face forms groove,
Wherein, first groove face and second groove face are straight during rolling the epiplastron and the bottom web
It is connected into type.
4. track girder according to claim 3, which is characterized in that the groove is double groove, the double groove
Inside bevel angle is more than outside bevel angle.
5. track girder according to any one of claim 2 to 4, which is characterized in that the track girder further includes ribs
Unit, the ribs unit are set to outside the welding point formed after the bottom web welding of the epiplastron and corresponding side
Side,
The ribs unit includes several ribs, several described ribs are uniform along the length direction of the track girder
Or it is unevenly distributed.
6. track girder according to claim 1, which is characterized in that the bottom of the pedal is along the length side of the track girder
To pedal ribbed panel is provided with, the pedal ribbed panel, the pedal and the bottom web of corresponding side are integrated roll forming.
7. track girder according to claim 6, which is characterized in that the track girder further includes rib hoop unit, the rib hoop
Unit includes the web ribbed stiffener and pedal for being set to top plate ribbed stiffener on the outside of the top plate, being set to the web outside
Ribbed stiffener,
Wherein, the pedal ribbed stiffener includes being respectively arranged at ribbed stiffener and setting on the outside of the pedal on the outside of the pedal ribbed panel
Ribbed stiffener on the inside of pedal on the inside of the pedal ribbed panel.
8. a kind of processing method of hanging type aerial track girder, which is characterized in that described method includes following steps：
There is provided the first component of integrated roll forming, the first component includes top plate and is respectively arranged at the top plate both sides
Epiplastron；
Two second components of integrated roll forming are provided, the second component include with the matched bottom web of the epiplastron with
And it is set to the pedal below the bottom web；
The epiplastron is fixedly connected with the bottom web of corresponding side.
9. processing method according to claim 8, which is characterized in that described " described in the epiplastron and corresponding side
Bottom web is fixedly connected " the step of be specially：
The epiplastron is fixedly connected by welding with the bottom web of corresponding side.
10. processing method according to claim 9, which is characterized in that the method further includes following steps：
Ribs unit is arranged in the outside of the welding point formed after the epiplastron and the welding of the bottom web of corresponding side；
In the outside of the top plate, the web and the pedal, rib hoop unit is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810281430.3A CN108316069A (en) | 2018-04-02 | 2018-04-02 | Hanging type aerial track girder and its processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281430.3A CN108316069A (en) | 2018-04-02 | 2018-04-02 | Hanging type aerial track girder and its processing method |
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| CN108316069A true CN108316069A (en) | 2018-07-24 |
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| CN201810281430.3A Pending CN108316069A (en) | 2018-04-02 | 2018-04-02 | Hanging type aerial track girder and its processing method |
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| CN109653039A (en) * | 2018-12-28 | 2019-04-19 | 中车长江车辆有限公司 | A kind of track girder, its box assembly and cabinet reinforcement structure |
| CN110385563A (en) * | 2019-07-16 | 2019-10-29 | 中国五冶集团有限公司 | Empty iron rectangular rail beam and its processing technology |
| CN112241562A (en) * | 2020-09-14 | 2021-01-19 | 中铁宝桥集团有限公司 | Design method for main welding line of suspension type air rail track beam |
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Address after: Room 19 and 20, floor 7, building 5, zone 4, No. 186, South Fourth Ring Road West, Fengtai District, Beijing 100070 Applicant after: Beijing Zhongjian Air Group Co., Ltd. Address before: 100094 No. 290, No. 115, No. 115, Shang Zhuang Road, Shang Zhuang Town, Haidian District, Beijing. Applicant before: Beijing Zhongjian Air Group Co., Ltd. |