CN112519817A - Vehicle body chassis structure of medium-low speed magnetic levitation vehicle - Google Patents
Vehicle body chassis structure of medium-low speed magnetic levitation vehicle Download PDFInfo
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- CN112519817A CN112519817A CN202011354647.6A CN202011354647A CN112519817A CN 112519817 A CN112519817 A CN 112519817A CN 202011354647 A CN202011354647 A CN 202011354647A CN 112519817 A CN112519817 A CN 112519817A
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- 238000005339 levitation Methods 0.000 title claims abstract description 21
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 19
- 241001669679 Eleotris Species 0.000 claims description 164
- 230000035939 shock Effects 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 12
- 239000000725 suspension Substances 0.000 description 34
- 239000006096 absorbing agent Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F1/00—Underframes
- B61F1/08—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F1/00—Underframes
- B61F1/08—Details
- B61F1/10—End constructions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F1/00—Underframes
- B61F1/08—Details
- B61F1/14—Attaching or supporting vehicle body-structure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a vehicle body underframe structure of a medium-low speed magnetic levitation vehicle, and relates to the field of magnetic levitation vehicle body structures. Chassis frame boundary beam and preceding, the chassis crossbeam and the floor that the rear end set up that contain the left and right sides setting, its characterized in that, chassis structure is last from front end to rear end along longitudinal extension side interval installation in proper order first corbel slip table, second corbel slip table, third corbel slip table, fourth corbel slip table and fifth corbel slip table, both ends overlap joint about corbel slip table contains corbel crossbeam on the chassis boundary beam and the corbel longeron that is used for supporting the corbel crossbeam on the floor with chassis boundary beam parallel arrangement, the tip corbel longeron that first corbel slip table, fifth corbel slip table contain extends to chassis structure's tip, tip corbel longeron is used for erection bracing chassis end structure.
Description
Technical Field
The invention relates to the field of magnetic levitation vehicle body structures, in particular to a vehicle body underframe structure of a medium-low speed magnetic levitation vehicle.
Background
The magnetic-levitation train utilizes the principle that electromagnets attract ferromagnetic materials to support the train to float above a track through electromagnetic force, and the train is pushed to move forwards through a moving electromagnetic field and the electromagnetic force generated by a linear motor, so that the train and the track run in a non-contact mode. Medium-low speed maglev transportation compares the urban rail train that the tradition was based on wheel rail is adhered as a more neotype track traffic mode of transportation, has that climbing ability is strong, turn radius is little, the structure is succinct, maintain advantages such as easier, noise is low. At present, the development of the field of medium and low speed maglev trains in China is rapid.
The chassis structure of the vehicle body of the medium-low speed maglev vehicle is a connection transition mechanism of the vehicle body and a suspension frame, and the suspension frame is connected through the arrangement of a sleeper beam sliding table. The chassis is used for bearing the vehicle body and can be used for installing part of electrical equipment. The front end and the rear end of a vehicle body underframe structure of the medium-low speed magnetic levitation vehicle need to be provided with end structures, and the end structures are used for mounting vehicle hooks and bearing impact load when the vehicle body collides.
Disclosure of Invention
As shown in fig. 6, the first generation of suspension rack, i.e. the square suspension rack, is installed in the existing vehicle body underframe structure, in the layout of the vehicle body underframe structure, the distance between the sleeper beam sliding table of the square suspension rack installed on the existing underframe body and the existing end structure is short, and the existing end structure is directly installed and supported by the sleeper beam sliding table of the square suspension rack.
As shown in fig. 7, the schematic view of the chassis structure using the second generation suspension frame is shown, the second generation suspension frame uses an i-shaped suspension frame, and the use of the i-shaped suspension frame can make the strength of the maglev train higher and the weight of the maglev train lighter. But compared with the traditional first generation suspension frame, the I-shaped suspension frame sleeper beam matched with the I-shaped suspension frame is far away from the end structure.
Therefore, in the field of magnetic levitation vehicle body structures, a supporting underframe structure for a second generation levitation frame, which can provide enough strength for an end structure, needs to be provided. Therefore, the invention provides a vehicle body underframe structure of a medium-low speed magnetic levitation vehicle, which solves the problems by the following technical key points:
the automobile body chassis structure of well low-speed maglev vehicle contains chassis boundary beam and preceding, chassis crossbeam and the floor that the rear end set up that the left and right sides set up, its characterized in that, chassis structure is last from front end to rear end along longitudinal extension side interval in proper order to install first sleeper beam slip table, second sleeper beam slip table, third sleeper beam slip table, fourth sleeper beam slip table and fifth sleeper beam slip table, both ends overlap joint about the sleeper beam slip table contains sleeper beam crossbeam on the chassis boundary beam and the sleeper beam longeron that is used for supporting the sleeper beam crossbeam on the floor with chassis boundary beam parallel arrangement, the tip sleeper beam longeron that first sleeper beam slip table, fifth sleeper beam slip table contain extends to chassis structure's tip, the tip sleeper beam longeron is used for the erection bracing chassis end structure.
Compared with the prior art, the vehicle body underframe structure provided by the invention has the advantages that the left underframe edge beam, the right underframe edge beam, the front underframe crossbeam and the rear underframe crossbeam are sequentially connected to enclose a square boundary, the middle of the floor is provided with a floor, the interfaces of the floor, the underframe edge beams and the underframe crossbeams are in lap welding forms, and the left underframe edge beam and the right underframe edge beam are used for transmitting and bearing the tension and pressure in the longitudinal direction on the underframe. The difference lies in that, in this scheme, the quantity that is used for connecting the sleeper beam slip table of installation suspension frame is five, because of the structural feature of I-shaped suspension frame, two sleeper beam slip tables of head and the tail, first sleeper beam slip table, fifth sleeper beam slip table and chassis structure head tip have kept certain distance. For making two sleeper beam slip tables of head and the tail can effectively support the chassis end structure after the installation, set up to, the tip sleeper beam longeron that first sleeper beam slip table, fifth sleeper beam slip table contained extends to chassis structure's tip: for mounting the supporting chassis end structure. Because the sleeper beam longitudinal beams for supporting the sleeper beam cross beams are arranged in parallel with the underframe boundary beams, the extending direction of the sleeper beam longitudinal beams is consistent with the direction of longitudinal tension and compression load applied to the underframe of the car body, so that longitudinal force flow transmitted by the front end structure can be transmitted more stably, and the front end structure is supported more firmly. Compared with the existing chassis structure for connecting and installing the first-generation suspension frame, the chassis structure is provided with less five sleeper beam sliding tables, so that the weight is reduced, the layout of the chassis structure is simplified, and more spaces are provided for the installation layout of equipment on the chassis structure. Meanwhile, the arrangement of the end sleeper beam longitudinal beam can be used for supporting a sleeper beam cross beam and also can be used for supporting an end structure of the underframe, so that the underframe structure has enough longitudinal strength.
The further technical scheme is as follows:
the quantity of the tip sleeper beam longeron that first sleeper beam slip table contained is two, and two tip sleeper beam longerons use chassis structure longitudinal center line to be the symmetry axis and be symmetrical arrangement, the quantity of the tip sleeper beam longeron that fifth sleeper beam slip table contained is two, and two tip sleeper beam longerons use chassis structure longitudinal center line to be symmetrical arrangement as the symmetry axis. In the technical characteristic, the underframe structures of the maglev trains are symmetrically arranged, and the front end structures of the maglev trains are also symmetrically arranged by taking the longitudinal center line of the underframe structures as a symmetric axis. Therefore, the number of the end sleeper beam for mounting and supporting the end structure is two, and the end sleeper beam is symmetrically arranged with the longitudinal center line of the underframe structure, so that the longitudinal force flow borne by the end sleeper beam is positioned in the center of the overall underframe structure, the transmission of the longitudinal force flow is more stable, and the longitudinal strength of the underframe structure is increased.
The end sleeper beam longitudinal beam is provided with a front end part and a rear end part, wherein the free end which is not used for installing the end structure of the underframe is provided with a sleeper beam longitudinal beam fillet. In the technical characteristics, the rounded corners of the sleeper beam longitudinal beams are arranged at the joint of the end part sleeper beam longitudinal beam and the floor, and the end part sleeper beam longitudinal beam needs to support the end part structure and bear the load of the chassis of the vehicle body in the longitudinal direction, so the stress concentration phenomenon can be reduced by the arrangement of the rounded corners of the sleeper beam longitudinal beam, and the bearing capacity of the end part sleeper beam longitudinal beam is further improved.
The first sleeper beam sliding table, the third sleeper beam sliding table and the fifth sleeper beam sliding table are linear bearing type sleeper beam sliding tables, and the second sleeper beam sliding table and the fourth sleeper beam sliding table are fixed sleeper beam sliding tables. Fixed sleeper beam slip table is split type structure, the sleeper beam crossbeam that fixed sleeper beam slip table contains divide into independent left and right sub sleeper beam crossbeam, both ends overlap joint respectively on chassis boundary beam and sleeper beam longeron about the sub sleeper beam crossbeam. In the technical characteristics, the fixed sleeper beam sliding table in split type design can further reduce the weight of the vehicle body structure under the condition of meeting the installation requirement, and meanwhile, more spaces are provided for the installation of large-scale underframe equipment.
The utility model discloses a fixed bolster slip table, including bolster longeron, horizontal shock attenuation mount pad includes that two parallel arrangement's ear seat and welding set up the connecting plate that is used for connecting two mount pads, it has two coaxial round holes to open on two ear seats. In this technical characteristic, horizontal shock attenuation mount pad is used for installing horizontal bumper shock absorber, and the bumper shock absorber is used for buffering displacement influence from top to bottom, promotes stability. The transverse shock-absorbing safety seat consists of two lug seats and a connecting plate, and two round holes are processed after welding so as to ensure the concentricity of the two round holes.
In order to improve the light weight design of the vehicle body, the front end face and the rear end face of the sleeper beam longitudinal beam contained in the second sleeper beam sliding table, the fourth sleeper beam sliding table and the sleeper beam transverse beam supporting the second sleeper beam sliding table are not beyond the front end face and the rear end face of the sleeper beam transverse beam supported by the fourth sleeper beam sliding table. The chassis boundary beam is provided with a notch between the two sleeper beam sliding tables, and a notch fillet is arranged at the corner of the notch. The sleeper beam cross beam is provided with lightening holes, and the underframe side beam, the underframe cross beam and the floor main body are formed by welding closed inclined rib section aluminum alloy hollow extruded sections.
A plurality of C-shaped grooves are formed in the floor, and at least one of the C-shaped grooves is an embedded high-low C-shaped groove. In the technical characteristics, the C-shaped groove is used for hanging various underframe equipment, wherein the embedded high-low C-shaped groove is used for hanging larger equipment, and the high C-shaped groove is used for installing large equipment needing heat dissipation, such as an auxiliary inverter, a high-voltage electric box, a traction inverter and the like. The short C-shaped groove is used for installing a storage battery and an air compressor, and the C-shaped grooves can be arranged on the two sides of the long floor and used for hanging smaller equipment such as a suspension controller and the like.
Compared with the prior art, the invention has the beneficial effects that:
the invention has scientific and reasonable structure. Compared with the prior art, the chassis structure of the vehicle body is provided with five sleeper beam sliding tables for mounting the I-shaped suspension frame. The end sleeper beam longitudinal beam extends to be connected with the underframe cross beam and can support an end structure arranged at the end of the underframe, so that the underframe structure can bear longitudinal tension and compression loads more stably. The free end of the end sleeper beam longitudinal beam is provided with a sleeper beam longitudinal beam fillet, so that the strength of the underframe structure in the longitudinal direction can be increased. The arrangement of the embedded high-low C-shaped groove can effectively improve the heat dissipation condition of the underframe equipment under the condition that an additional installation space is not increased.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic overall layout of the present invention;
FIG. 2 is an end view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of a fixed bolster slide of the present invention;
FIG. 5 is a schematic view of a shock mount of the present invention;
FIG. 6 is a simplified schematic diagram of a conventional vehicle chassis structure employing a first generation suspension frame;
FIG. 7 is a simplified schematic diagram of a vehicle chassis structure employing an I-shaped suspension frame;
in the figure: 1. an underframe edge beam; 11. a notch; 12. rounding off the notch; 2. an underframe cross beam; 3. a floor; 4. A sleeper beam sliding table; 41. a fixed bolster sliding table; 411. a second bolster slide; 412. a fourth bolster slide; 42. Linear bearing bolster slides; 421. a first bolster sliding table; 422. a third bolster sliding table; 423. a fifth sleeper beam sliding table; 43. a bolster beam; 431. a sub-sleeper beam cross beam; 44. a bolster longitudinal; 441. an end bolster stringer; 442. chamfering the longitudinal beam of the sleeper beam; 45. a shock-absorbing mounting seat; 451. an ear mount; 452. a connecting plate; 453. A circular hole; 5. c-shaped grooves; 51. an embedded high-low C-shaped groove; 1001. an existing chassis body; 1002. a square suspension frame; 1003. a square suspension frame sleeper beam sliding table; 1004. an existing end structure; 2001. an I-shaped suspension frame; 2002. i-shaped suspension frame sleeper beam slip table.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Referring to fig. 1 to 7, the present invention provides a technical solution:
vehicle body chassis structure of well low-speed maglev vehicle contains chassis boundary beam 1 and preceding, chassis crossbeam 2 and floor 3 that the rear end set up that the left and right sides set up, its characterized in that, chassis structure is last from front end to rear end along longitudinal extension direction interval installation in proper order first sleeper beam slip table 421, second sleeper beam slip table 411, third sleeper beam slip table 422, fourth sleeper beam slip table 412 and fifth sleeper beam slip table 423, sleeper beam slip table 4 contains about both ends overlap joint sleeper beam 43 of 1 on the chassis boundary beam and sleeper beam 44 that is used for supporting sleeper beam 43 on floor 3 with chassis boundary beam 1 parallel arrangement, tip sleeper beam 441 that first sleeper beam slip table 421, fifth sleeper beam slip table 423 contained extends to chassis structure's tip, tip sleeper beam 441 is used for the erection bracing chassis tip structure.
As shown in fig. 6, in the layout of the conventional vehicle body underframe structure, a first generation suspension frame, that is, a square suspension frame 1002 is installed, in the layout of the vehicle body underframe structure, a square suspension frame sleeper beam sliding table 1003 installed on a conventional underframe body 1001 is closer to a conventional end structure 1004, and the square suspension frame sleeper beam sliding table 1003 is directly installed and supported on the conventional end structure 1004.
The invention provides a vehicle body underframe structure, wherein a left underframe edge beam 1, a right underframe edge beam 1, a front underframe cross beam 2 and a rear underframe cross beam 2 are sequentially connected to enclose a square boundary, a floor 3 is arranged in the middle, the interfaces of the floor 3, the underframe edge beams 1 and the underframe cross beams 2 are in lap welding forms, and the left underframe edge beam 1 and the right underframe edge beam 1 are used for transmitting and bearing the tension and pressure in the longitudinal direction borne by a vehicle underframe. Compared with the prior art, the difference is that in the scheme, the number of the sleeper beam sliding tables 4 for connecting and installing the suspension frame is five, and due to the structural characteristics of the i-shaped suspension frame 2001, as shown in fig. 7, the i-shaped suspension frame sleeper beam sliding table 2002 arranged in cooperation with the i-shaped suspension frame 2001 is far from the end structure. For making two sleeper beam slip tables 4 of head and the tail can effectively support the chassis end structure after the installation, set up to, the tip sleeper beam longeron 441 that first sleeper beam slip table 421, fifth sleeper beam slip table 423 contain extends to the tip of chassis structure: for mounting the supporting chassis end structure. Since the bolster longitudinal beams 44 for supporting the bolster cross beams 43 are arranged in parallel with the underframe side beams 1, the extending direction of the bolster longitudinal beams 44 is also the same as the direction of the longitudinal tension and compression load applied to the car body underframe, so that the longitudinal force flow transmitted by the front end structure can be more stably transmitted, and the front end structure for installing the coupler can be more firmly supported. Compared with the existing chassis structure for connecting and installing the first generation suspension frame, the chassis structure is provided with five sleeper beam sliding tables 4 with less quantity, so that the weight is reduced, the layout of the chassis structure is simplified, and more spaces are provided for the installation layout of equipment on the chassis structure. Meanwhile, the end sleeper beam 441 is arranged to support not only the sleeper beam cross beam 43 but also the underframe end structure, so that the underframe structure has sufficient longitudinal strength.
The further technical scheme is as follows:
the number of the end sleeper beam 441 included in the first sleeper beam sliding table 421 is two, the two end sleeper beam 441 are symmetrically arranged by taking the longitudinal central line of the underframe structure as a symmetric axis, the number of the end sleeper beam 441 included in the fifth sleeper beam sliding table 423 is two, and the two end sleeper beam 441 are symmetrically arranged by taking the longitudinal central line of the underframe structure as a symmetric axis. In the technical characteristic, the underframe structures of the maglev trains are symmetrically arranged, and the front end structures of the maglev trains are also symmetrically arranged by taking the longitudinal center line of the underframe structures as a symmetric axis. Therefore, the number of the end sleeper beam 441 used for mounting and supporting the end structure is two, and the end sleeper beam is symmetrically arranged with the longitudinal center line of the underframe structure, so that the longitudinal force flow carried by the end sleeper beam can be positioned in the center of the overall underframe structure, the transmission of the longitudinal force flow is more stable, and the longitudinal strength of the underframe structure is increased.
The free end of the end bolster longitudinal beam 441 not connected with the underframe cross beam 2 is provided with a bolster longitudinal beam fillet 442. In the technical feature, the bolster longitudinal beam rounded corners 442 are disposed at the joints of the end portions of the end bolster longitudinal beams 441 and the floor 3, and the end bolster longitudinal beams 441 need to support loads in the longitudinal direction of the end structure and the vehicle body underframe, so the stress concentration phenomenon can be reduced by the bolster longitudinal beam rounded corners 442, and the bearing capacity of the end bolster longitudinal beams 441 can be further improved.
The first bolster sliding table 421, the third bolster sliding table 422, and the fifth bolster sliding table 423 are linear bearing type bolster sliding tables 42, and the second bolster sliding table 411 and the fourth bolster sliding table 412 are fixed bolster sliding tables 41. Fixed sleeper beam slip table 41 is split type structure, sleeper beam crossbeam 43 that fixed sleeper beam slip table contains divide into independent left and right sub sleeper beam crossbeam 431, both ends overlap joint respectively on chassis boundary beam 1 and sleeper beam longeron 44 about sub sleeper beam crossbeam 431. In this technical feature, the fixed bolster slipway 41 of the split design can further reduce the weight of the vehicle body structure under the condition of satisfying the installation requirements, and simultaneously provides more space for the installation of large-scale underframe equipment.
Bolster longeron 44 medial surface that fixed bolster slip table 41 contained is provided with horizontal shock attenuation mount pad 45, horizontal shock attenuation mount pad 45 contains the ear seat 451 and the welding setting of two parallel arrangement and is used for connecting the connecting plate 452 of two mount pads, it has two coaxial round holes 453 to open on two ear seats 451. In the technical characteristics, the transverse shock absorption mounting seat 45 is used for mounting a transverse shock absorber, and the shock absorber is used for buffering the influence of vertical displacement and improving the stability. The transverse shock-absorbing safety seat consists of two lug seats 451 and a connecting plate 452, and two round holes 453 are processed after welding so as to ensure the concentricity of the two round holes 453.
In order to improve the light weight design of the vehicle body, the front and rear end surfaces of the bolster longitudinal beams 44 included in the second to fourth bolster sliding tables 412 are set to be not beyond the front and rear end surfaces of the bolster transverse beams 43 supported by the second to fourth bolster sliding tables. The underframe boundary beam 1 is provided with a notch 11 between the two sleeper beam sliding tables 4, and the corner of the notch 11 is provided with a notch fillet 12. The sleeper beam cross beam 43 is provided with lightening holes, and the main bodies of the underframe boundary beam 1, the underframe cross beam 2 and the floor 3 are formed by welding closed inclined rib section aluminum alloy hollow extruded sections.
The floor 3 is provided with a plurality of C-shaped grooves 5, and at least one C-shaped groove 5 in the C-shaped grooves 5 is an embedded high-low C-shaped groove 51. In the technical characteristics, the C-shaped groove 5 is used for hanging various underframe equipment, wherein the embedded high-low C-shaped groove 51 is used for hanging larger equipment, and the high C-shaped groove 5 is used for installing large equipment needing heat dissipation, such as an auxiliary inverter, a high-voltage electric box, a traction inverter and the like. The short C-shaped grooves 5 are used for installing storage batteries and air compressors, and the C-shaped grooves 5 can be arranged on two sides of the long floor 3 and used for hanging small equipment such as a suspension controller and the like.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A vehicle body chassis structure of a medium-low speed magnetic levitation vehicle comprises chassis side beams (1) arranged on the left side and the right side, chassis cross beams (2) arranged at the front end and the rear end, and a floor (3), and is characterized in that the chassis structure is provided with a first sleeper beam sliding table (421), a second sleeper beam sliding table (411), a third sleeper beam sliding table (422), a fourth sleeper beam sliding table (412) and a fifth sleeper beam sliding table (423) at intervals along the longitudinal extension direction from the front end to the rear end in sequence, the sleeper beam sliding table (4) comprises a sleeper beam cross beam (43) with the left end part and the right end part lapped on the chassis side beam (1) and a sleeper beam longitudinal beam (44) which is arranged on the floor (3) in parallel with the chassis side beam (1) and is used for supporting the sleeper beam cross beam (43), and the end sleeper beam longitudinal beam (441) contained by the first sleeper beam sliding table (421) and the fifth sleeper beam sliding table (423) extends to the end part, the end bolster longitudinal beam (441) is used for mounting and supporting an end structure of the underframe.
2. The vehicle body chassis structure of the medium-low speed magnetic levitation vehicle as claimed in claim 1, wherein the first sleeper beam sliding table (421) comprises two end sleeper beam longitudinal beams (441), the two end sleeper beam longitudinal beams (441) are symmetrically arranged by taking the longitudinal center line of the chassis structure as a symmetry axis, the fifth sleeper beam sliding table (423) comprises two end sleeper beam longitudinal beams (441), and the two end sleeper beam longitudinal beams (441) are symmetrically arranged by taking the longitudinal center line of the chassis structure as a symmetry axis.
3. The vehicle body underframe structure of a medium-low speed magnetic levitation vehicle as recited in claim 2, wherein the end sleeper beam (441) has a front end and a rear end, and wherein a free end not used for mounting underframe end structure is provided with a sleeper beam rounded corner (442).
4. The vehicle body underframe structure of the medium-low speed magnetic levitation vehicle as claimed in claim 1, wherein the first sleeper beam slipway (421), the third sleeper beam slipway (422) and the fifth sleeper beam slipway (423) are linear bearing type sleeper beam slipways (42), and the second sleeper beam slipway (411) and the fourth sleeper beam slipway (412) are fixed sleeper beam slipways (41).
5. The vehicle body underframe structure of the medium-low speed magnetic levitation vehicle as claimed in claim 4, wherein the fixed sleeper beam slipway (41) is a split structure, a sleeper beam cross beam (43) contained in the fixed sleeper beam slipway is divided into a left sub sleeper beam cross beam (431) and a right sub sleeper beam cross beam (431), and the left end and the right end of the sub sleeper beam cross beam (431) are respectively lapped on the underframe boundary beam (1) and the sleeper beam longitudinal beam (44).
6. The vehicle body chassis structure of the medium-low speed magnetic levitation vehicle as claimed in claim 5, wherein the inner side surface of the sleeper beam longitudinal beam (44) included in the fixed sleeper beam sliding table (41) is provided with a transverse shock absorption mounting seat (45), the transverse shock absorption mounting seat (45) includes two ear seats (451) arranged in parallel and a connecting plate (452) welded and arranged to connect the two mounting seats, and the two ear seats (451) are provided with two coaxial circular holes (453).
7. The vehicle body underframe structure of the medium-low speed magnetic levitation vehicle as claimed in claim 1, wherein the front and rear end surfaces of the sleeper beam longitudinal beams (44) included in the second sleeper beam sliding platform (411), the third sleeper beam sliding platform (422) and the fourth sleeper beam sliding platform (412) do not exceed the front and rear end surfaces of the sleeper beam cross beam (43) supported by the second sleeper beam sliding platform.
8. The vehicle body chassis structure of the medium-low speed magnetic levitation vehicle as claimed in claim 1, wherein the chassis boundary beam (1) is provided with a gap (11) between the two sleeper beam sliding tables (4), and the corner of the gap (11) is provided with a gap fillet (12).
9. The vehicle body underframe structure of the medium-low speed magnetic levitation vehicle as claimed in claim 1, wherein the sleeper beam cross beam (43) is provided with lightening holes, and the main bodies of the underframe side beam (1), the underframe cross beam (2) and the floor (3) are formed by welding closed inclined rib section aluminum alloy hollow extruded sections.
10. The vehicle body underframe structure of the medium-low speed magnetic levitation vehicle as claimed in claim 1, wherein a plurality of C-shaped grooves (5) are formed on the floor (3), and at least one C-shaped groove (5) of the plurality of C-shaped grooves (5) is an embedded high-low C-shaped groove (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354647.6A CN112519817A (en) | 2020-11-27 | 2020-11-27 | Vehicle body chassis structure of medium-low speed magnetic levitation vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354647.6A CN112519817A (en) | 2020-11-27 | 2020-11-27 | Vehicle body chassis structure of medium-low speed magnetic levitation vehicle |
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| CN112519817A true CN112519817A (en) | 2021-03-19 |
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| CN202011354647.6A Pending CN112519817A (en) | 2020-11-27 | 2020-11-27 | Vehicle body chassis structure of medium-low speed magnetic levitation vehicle |
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| WO2020075264A1 (en) * | 2018-10-11 | 2020-04-16 | 株式会社日立製作所 | Rail vehicle underframe structure and rail vehicle |
| CN211617705U (en) * | 2020-01-03 | 2020-10-02 | 中铁磁浮科技（成都）有限公司 | Novel magnetic suspension car body chassis |
| CN213502289U (en) * | 2020-11-27 | 2021-06-22 | 中铁磁浮科技（成都）有限公司 | Vehicle body underframe structure of medium-low speed maglev train |
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2020
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| JP2006240482A (en) * | 2005-03-03 | 2006-09-14 | Hitachi Ltd | Railroad vehicle body |
| 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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| WO2020075264A1 (en) * | 2018-10-11 | 2020-04-16 | 株式会社日立製作所 | Rail vehicle underframe structure and rail vehicle |
| CN211617705U (en) * | 2020-01-03 | 2020-10-02 | 中铁磁浮科技（成都）有限公司 | Novel magnetic suspension car body chassis |
| CN213502289U (en) * | 2020-11-27 | 2021-06-22 | 中铁磁浮科技（成都）有限公司 | Vehicle body underframe structure of medium-low speed maglev train |
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