WO2021114269A1 - Sous-châssis pour véhicule à sustentation magnétique et véhicule à sustentation magnétique - Google Patents

Sous-châssis pour véhicule à sustentation magnétique et véhicule à sustentation magnétique Download PDF

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Publication number
WO2021114269A1
WO2021114269A1 PCT/CN2019/125326 CN2019125326W WO2021114269A1 WO 2021114269 A1 WO2021114269 A1 WO 2021114269A1 CN 2019125326 W CN2019125326 W CN 2019125326W WO 2021114269 A1 WO2021114269 A1 WO 2021114269A1
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WIPO (PCT)
Prior art keywords
frame
floor
traction buffer
fixed
buffer cavity
Prior art date
Application number
PCT/CN2019/125326
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English (en)
Chinese (zh)
Inventor
王峰
郭金城
王晓梅
崔玉萌
杨君
王国静
Original Assignee
中车唐山机车车辆有限公司
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Publication of WO2021114269A1 publication Critical patent/WO2021114269A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/10—Floors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
    • B60L13/04—Magnetic suspension or levitation for vehicles
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Definitions

  • This application relates to the technical field of rail vehicles, and in particular, to an underframe for a magnetic levitation vehicle and a magnetic levitation vehicle.
  • Maglev trains have the advantages of high speed, low energy consumption and low noise, and are one of the development directions of rail trains.
  • the components of the related rail trains are heavy and large in size, which cannot meet the requirements of the maglev train with relatively more undercarriage equipment, and the related structure adopts a welding structure, which has large welding deformation, which causes great difficulties in adjustment and rest. It uses metal parts and is of heavy weight. Therefore, various parts of the maglev train need to be improved.
  • the related floor composition is of heavier quality, and at the same time, the space under the vehicle is occupied more. It cannot meet the requirements of the development of maglev vehicles for weight reduction and space optimization. This is a technical problem that those skilled in the art need to solve urgently. .
  • the embodiments of the present application provide an underframe for a magnetic levitation vehicle and a magnetic levitation vehicle, so as to solve the related technical problems of lightweight underframe and optimization of space arrangement.
  • the embodiment of the present application provides an underframe for a magnetic levitation vehicle, which includes a floor composition and a plurality of sliding tables;
  • the floor composition includes:
  • a rigid frame which is fixed on the side edge of the floor frame
  • the lower panel is fixed to the lower surface of the floor frame, and the lower panel is a composite material lower panel;
  • the upper panel is fixed on the upper surface of the floor frame, and the upper panel is a composite material upper panel;
  • the sliding table includes a composite material supporting structure, and the supporting structure is fixed to the upper surface of the upper panel.
  • a magnetic levitation vehicle includes the aforementioned underframe.
  • the rigid frame in the floor composition is fixed at the side edge of the composite floor frame, which can make the entire floor composition higher in rigidity and strength; the floor frame, the upper panel and the lower panel are all made of composite material, the upper panel It is fixed to the upper surface of the floor frame, and the lower panel is fixed to the lower surface of the floor frame. In this way, most of the floor composition is composite material. When the strength and rigidity meet the requirements of the floor composition, the overall weight is small.
  • the direct support structure in the sliding table is made of composite materials, and the sliding table is fixed on the upper surface composed of the floor through the supporting structure, and the sliding table is used to connect the suspension of the rail vehicle
  • the frame and the sliding table are strong enough to support the suspension frame.
  • the weight is small, the structure is simple, and the space under the vehicle is small, and it can be applied to magnetic levitation vehicles. Therefore, the overall weight of the underframe of the embodiment of the present application is relatively small, which is suitable for the requirement of a magnetic levitation vehicle that requires a relatively small overall weight.
  • Fig. 1 is a schematic diagram of an underframe for a magnetic levitation vehicle according to an embodiment of the application
  • Figure 2 is an exploded view of the underframe for the magnetic levitation vehicle shown in Figure 1;
  • Fig. 3 is a schematic diagram of the floor composition of the underframe shown in Fig. 2;
  • Figure 4 is an exploded view of the floor composition shown in Figure 3;
  • Fig. 5 is a schematic diagram of a floor frame composed of the floor shown in Fig. 4;
  • Fig. 6 is a schematic cross-sectional view of the longitudinal beams of the floor frame shown in Fig. 5;
  • Fig. 7 is a schematic cross-sectional view of the beam of the floor frame shown in Fig. 6;
  • Fig. 8 is a schematic diagram of a frame composed of the floor shown in Fig. 5;
  • Fig. 9 is a schematic cross-sectional view at the position of the beams of the floor composition of Fig. 3;
  • Fig. 10 is a schematic cross-sectional view of the vertical arm of the frame shown in Fig. 8;
  • Fig. 11 is a schematic cross-sectional view of the transverse arm of the frame shown in Fig. 8;
  • Figure 12 is an exploded schematic view of the sliding table of the underframe shown in Figure 2;
  • Figure 13 is a top view of the support structure of the sliding table shown in Figure 12;
  • Figure 14 is a cross-sectional view of A-A shown in Figure 13;
  • Figure 15 is a B-B cross-sectional view shown in Figure 13;
  • Fig. 16 is a perspective schematic view of the traction buffer device of the underframe shown in Fig. 2;
  • Figure 17 is a top view of the traction buffer device shown in Figure 16;
  • Fig. 18 is a cross-sectional view taken along line C-C shown in Fig. 17.
  • traction buffer device 210 traction buffer body, 211 traction buffer cavity, 212 traction buffer cavity filling layer, 213 reinforcement ribs, 214 hollow columnar structure, 215 wiring holes, 216 fixing inner flanges, 217 fixing outer projections edge,
  • 300 sliding table 310 support structure, 311 fixing flange, 311-1 fixing flange bolt hole, 312 strip protrusion, 312-1 strip protrusion bolt hole, 313 escape port, 314 cover,
  • Fig. 1 is a schematic diagram of an underframe for a magnetic levitation vehicle according to an embodiment of the application
  • Fig. 2 is an exploded view of the underframe for a magnetic levitation vehicle shown in Fig. 1
  • Fig. 3 is a floor composition of the underframe shown in Fig. 2
  • Figure 4 is an exploded view of the floor composition shown in Figure 3
  • Figure 5 is a schematic diagram of the floor frame of the floor composition shown in Figure 4.
  • the underframe for a magnetic levitation vehicle according to the embodiment of the present application includes a floor assembly 100, a traction buffer device 200 and a plurality of sliding tables 300.
  • the floor composition 100 includes:
  • the floor skeleton 110, the floor skeleton is a composite floor skeleton
  • a rigid frame 120 which is fixed on the side edge of the floor frame
  • the lower panel 130 is fixed to the lower surface of the floor frame, and the lower panel is a composite material lower panel;
  • the upper panel 140 is fixed to the upper surface of the floor frame, and the upper panel is a composite material upper panel;
  • the sliding table 300 includes a supporting structure 310 made of composite material, and the supporting structure 310 is fixed to the upper surface of the upper panel 140.
  • the rigid frame in the floor composition is fixed at the side edge of the floor frame of the composite material, so that the rigidity and strength of the entire floor composition can be higher; the floor frame,
  • the upper and lower panels are made of composite materials.
  • the upper panel is fixed on the upper surface of the floor frame, and the lower panel is fixed on the lower surface of the floor frame. In this way, most of the floor composition is made of composite materials, and the strength and rigidity of the floor are as good as that of the floor.
  • the overall weight is small, which is suitable for the requirements of magnetic levitation vehicles that require a small overall weight;
  • the direct structure supporting the sliding table is made of composite materials, and the sliding table is fixed on the floor composition through the supporting structure Above the surface, the sliding table is used to connect the suspension frame of the rail vehicle.
  • the strength of the sliding table can be sufficient to support the suspension frame.
  • the weight is small, the structure is simple, and the space under the vehicle is small, and it is suitable for magnetic levitation vehicles. Therefore, the overall weight of the underframe of the embodiment of the present application is relatively small, which is suitable for the requirement of a magnetic levitation vehicle that requires a relatively small overall weight.
  • the internal space enclosed by the floor frame 110 and the frame 120 is filled with honeycomb aluminum to form a floor frame filling layer 150, and structural components are embedded in the floor frame filling layer;
  • the floor frame 110 and the lower panel 130 are formed by a co-curing process as the first composite component
  • the frame 120 and the first composite component are formed by a room temperature curing process and serve as the first hybrid component;
  • the first mixing assembly and the upper panel 140 are fixed by screw connection and glue connection.
  • the floor frame and the internal space enclosed by the frame are filled with honeycomb aluminum to form a floor frame filling layer.
  • honeycomb aluminum In order to realize the connection with other parts of the magnetic levitation vehicle, it is necessary to embed structural parts in the floor frame filling layer. Used to connect with other parts of the maglev vehicle.
  • the floor frame and the lower panel are made of composite materials and are formed by a co-curing process.
  • the first composite component is formed by a co-curing process, which has good integrity and a more stable structure.
  • the frame and the first composite component are formed by a normal temperature curing process as the first mixing component. In this way, the two different materials are fixed together through the normal temperature curing process; the first mixing component and the upper panel are connected and connected by threads. Gluing and fixing.
  • the floor frame is a floor frame made of carbon fiber material
  • the upper panel is an upper panel made of carbon fiber material
  • the lower panel is a lower panel made of carbon fiber material
  • the frame is an aluminum profile frame.
  • the floor frame, the upper panel and the lower panel are made of carbon fiber material, and the filling layer of the floor frame is made of honeycomb aluminum, which is beneficial to control the overall weight of the floor composition and at the same time control the total cost of the floor composition; the frame of the aluminum profile is rigid and is the floor The composition provides sufficient stiffness and strength.
  • the floor frame includes:
  • a plurality of longitudinal beams 111, the length of the longitudinal beams is along the length direction of the magnetic levitation vehicle;
  • a plurality of cross beams 112 each of the cross beams is arranged at intervals along the length direction of the longitudinal beam, the cross beam and the longitudinal beam are intersected and fixed, and both ends of the cross beam protrude from the longitudinal beam;
  • a head end beam 113, the head end beam is fixed to the head end of the middle longitudinal beam, and the head end of the side longitudinal beam is shorter than the middle side beam;
  • the side longitudinal beams are longitudinal beams located at the edges of both sides, and the middle side beams are longitudinal beams located between the two side longitudinal beams.
  • the floor frame is a structure composed of the longitudinal beams, the cross beams and the head end beams, which makes the structure of the entire floor frame stable.
  • the floor composition also includes:
  • each group of the door position reinforcing beams 114 are arranged at intervals on the floor composition corresponding to the position of the door of the magnetic levitation vehicle;
  • the door position reinforcement beam 114 is a U-shaped structure with a wider opening
  • the longitudinal arms of the door position reinforcing beam intersect and fix the first longitudinal beam and the second longitudinal beam, the opening of the door position reinforcing beam faces outward, and the transverse arms of the door position reinforcing beam are located between the second longitudinal beam and the third longitudinal beam.
  • first longitudinal beam, the second longitudinal beam, and the third longitudinal beam are three side beams arranged in order from the outer side to the inner side of each side beam.
  • the position for installing the door of the magnetic levitation vehicle needs to open on the vehicle body, and the requirement for the strength of the floor to form this position becomes higher. Therefore, it needs to be reinforced at the corresponding position of the floor.
  • the door position reinforcing beam is the floor Reinforce the position corresponding to the composition door.
  • the transverse arm of the door position reinforcement beam is located between the second longitudinal beam and the third longitudinal beam, and the reinforcement position is closer to the center of the floor frame, so that the strength and rigidity of the corresponding position of the floor composition are higher.
  • the door position reinforcing beam 114 intersects and fixes one of the cross beams, and the position where the opening of the door position reinforcing beam widens is located outside the first longitudinal beam.
  • the steps that expand outward at the ends of the two longitudinal arms of the door position reinforcement beam make the opening of the U-shaped structure with wider openings wider at the end; the door position reinforcement beam and one of the cross beams intersecting and fixing can enhance the strength of the floor composition And stiffness.
  • the floor composition also includes:
  • each group of the sliding platform position reinforcement beams are arranged at intervals on the floor composition corresponding to the position where the sliding platform of the magnetic levitation vehicle is installed.
  • each maglev vehicle needs to be equipped with multiple suspension frames.
  • the suspension frame In order to install the suspension frame, it is necessary to install a sliding table for fixing the suspension frame at the corresponding position of the floor composition. Therefore, the strength of the floor composition at this position The requirements become higher. Therefore, it is necessary to reinforce the position corresponding to the floor composition.
  • Multiple sets of reinforcement beams for the sliding table position are to achieve reinforcement for the sliding table structure.
  • the structural form of the reinforcement beam for each group of sliding table position can be selected according to the location and reinforcement requirements.
  • the sliding platform position reinforcement beam further includes a semi-U-shaped head sliding platform position reinforcement beam 115, and the head sliding platform position reinforcement beam 115 is connected to the first longitudinal beam and the first longitudinal beam.
  • the two longitudinal beams are intersected and fixed, and the head slide position reinforcing beam 115 is fixed to the side of the first cross beam facing the head end beam.
  • the head slide position reinforcing beam 115 is used to reinforce the longitudinal The first section of the beam
  • the sliding platform position reinforcement beam also includes a U-shaped middle sliding platform position reinforcement beam 116, the middle sliding platform position reinforcement beam 116 intersects and fixes the first longitudinal beam, and the opening of the middle sliding platform position reinforcement beam faces
  • the outer and transverse arm is located between the first longitudinal beam and the second side beam;
  • the sliding platform position reinforcement beam also includes a tail sliding platform position reinforcement beam 117 with a U-shaped end.
  • the tail sliding platform position reinforcement beam intersects and fixes the first longitudinal beam and the second longitudinal beam.
  • the opening of the special-shaped U-shaped sliding table position reinforcing beam faces outwards and the transverse arm is located between the first longitudinal beam and the second side beam; the tail sliding table position reinforcing beam is used to reinforce the longitudinal beam Tail section.
  • the U-shaped middle slide position reinforcement beam and the end special-shaped U-shaped tail slide position reinforcement beam are reinforced. At the same time, it makes the structure of the floor stable.
  • Fig. 6 is a schematic cross-sectional view of the longitudinal beams of the floor skeleton shown in Fig. 5;
  • Fig. 7 is a schematic cross-sectional view of the beams of the floor skeleton shown in Fig. 6.
  • the head end beam is a head end beam with a rectangular frame in cross section;
  • the longitudinal beam 111 is a longitudinal beam with a cross section of a "several" shape, and the flanging at the bottom of the longitudinal beam is fixed to the upper surface of the lower panel.
  • the outer top is fixed to the lower surface of the upper panel;
  • the cross beam 112 is a cross beam with a rectangular frame in cross section, and the outer bottom of the cross beam is fixed to the upper surface of the lower panel, and the outer top of the beam is connected to the lower surface of the upper panel. fixed.
  • the cross-section of the head end beam and the cross beam is a rectangular frame, and the closed cross-section structure is stable; the cross-section of the longitudinal beam is a zigzag shape, and the fixation with the lower panel and the upper panel is more stable.
  • Fig. 8 is a schematic diagram of the frame of the floor composition shown in Fig. 5;
  • Fig. 9 is a schematic cross-sectional view at the position of the beams of the floor composition shown in Fig. 3.
  • the frame is a U-shaped frame;
  • the end of the cross beam 112 of the floor frame is bonded and fixed to the inner side of the vertical arm of the frame, and the end of the longitudinal beam of the floor frame is bonded to the inner side of the horizontal arm of the frame. Connect fixed.
  • the U-shaped frame half-encloses the floor frame, making the structure of the floor more stable; when the frame and the first composite component are cured at room temperature, the end of the cross beam of the floor frame is connected with The inner side of the vertical arm of the frame is adhesively fixed, and the end of the longitudinal beam of the floor frame is adhesively fixed to the inner side of the transverse arm of the frame.
  • Fig. 10 is a schematic cross-sectional view of the vertical arm of the frame shown in Fig. 8;
  • Fig. 11 is a schematic cross-sectional view of the lateral arm of the frame shown in Fig. 8.
  • the vertical arm and the transverse arm of the frame are provided with a downwardly concave upper panel avoiding portion 118 at a position for fixing with the upper panel.
  • the upper panel and The upper panel avoiding portion 118 is fixed;
  • the position where the vertical arm and the transverse arm in the frame are fixed to the lower panel is provided with an upwardly concave lower panel avoiding portion 119, and the lower panel and the lower panel avoiding portion 119 are fixed.
  • the upper panel is also fixed with the upper panel avoiding part of the frame
  • the lower panel is also fixed with the lower panel avoiding part of the frame, so that the structure of the floor is more stable.
  • co-curing process is to meet the lightweight requirements of composite products and provide work efficiency.
  • the multiple components that originally need to be assembled twice are optimized through process optimization, tooling design and other means. It is changed to one-time integral molding with the curing process of one of the components, thereby reducing the workload of the secondary assembly and the weight gain of the connection. This process is called co-curing.
  • Fig. 12 is an exploded schematic view of the sliding table of the base frame shown in Fig. 2;
  • Fig. 13 is a top view of the supporting structure of the sliding table shown in Fig. 12;
  • Fig. 14 is a cross-sectional view of A-A shown in Fig. 13.
  • the sliding table 300 for a magnetic levitation vehicle includes:
  • the support structure 310 of composite material the bottom end of the support structure has a fixing flange 311, and the fixing flange 311 has a plurality of fixing flange bolt holes 311-1;
  • the top end of the supporting structure is used to connect with the suspension frame of the magnetic levitation vehicle, and the fixing flange bolt hole 311-1 is used to cooperate with bolts, and at the same time, glue connection is adopted to realize the sliding table and the suspension frame. Fixed the floor of the magnetic levitation vehicle.
  • the sliding table fixes the support structure on the floor of the magnetic levitation vehicle through the fixing flange bolt holes and bolts and glued joints of the fixing flange at the bottom end of the support structure.
  • the connection realizes the connection between the sliding table and the floor composition of the magnetic levitation vehicle and the suspension frame, and the supporting structure plays the role of supporting the suspension frame. Since the supporting structure is made of composite materials, the strength can be sufficient to support the suspension frame, at the same time, the weight is small, the structure is simple, and it can be applied to magnetic levitation vehicles.
  • the top end of the support structure has two oppositely arranged strip-shaped protrusions 312, and an escape space is formed between the two strip-shaped protrusions 312;
  • the avoidance space is used to avoid the structure in which the suspension frame of the magnetic levitation vehicle protrudes downward.
  • the avoidance space makes there is no interference between the support structure and the suspension frame, and the sliding table is not easy to be worn; at the same time, the avoidance space also makes the required material of the sliding table smaller, lower weight, and lower cost.
  • the strip-shaped protrusions 312 are provided with strip-shaped protrusion bolt holes 312-1 that are arranged at intervals along the length direction of the strip-shaped protrusions 312;
  • strip-shaped raised bolt hole 312-1 is used to cooperate with bolts to realize the suspension frame connection of the magnetic levitation vehicle.
  • the strip-shaped raised bolt holes are matched with the bolts to realize the connection between the sliding table and the suspension frame of the magnetic levitation vehicle.
  • Each of the magnetic levitation vehicles will be equipped with multiple suspension frames, and each suspension frame corresponds to four sliding tables (in the case of two suspension frames sharing the sliding table).
  • a part of the suspension frame is fixed relative to the sliding table, and this part of the suspension frame is fixed by the strip-shaped raised bolt holes and bolts to realize the suspension frame of the maglev vehicle;
  • a corresponding structure is required, as follows:
  • the sliding table also includes four rigid wear strips 321;
  • Two wear strips 321 are fixed on one of the strip-shaped protrusions 312 and fixed on both sides of the strip-shaped protrusion bolt holes, forming a strip-shaped gap between the two wear strips 321 ;
  • the strip-shaped gap is used to cooperate with the protruding elongated structure of the suspension frame of the magnetic levitation vehicle, so that the two can slide relative to each other in the length direction of the strip-shaped gap.
  • the function of the wear strip is to increase the friction between the sliding table and the suspension frame, and the wear strip and the supporting structure are fixedly connected by bolts and glue joints. There can be a small range of sliding between the strip gap and the suspension frame.
  • Fig. 15 is a cross-sectional view taken along the line B-B shown in Fig. 13.
  • the lower end of the inner side of the support structure has a recessed escape opening 313, and the length direction of the escape opening 313 is perpendicular to the length direction of the strip-shaped protrusion;
  • the avoidance opening 313 is used to avoid the brake pipeline of the maglev vehicle or other under-vehicle equipment.
  • the avoidance opening of the sliding table avoids the brake pipeline of the maglev vehicle or other under-vehicle equipment. Reduce the impact on maglev vehicles.
  • a cover 314 is formed on the outer side of the support structure
  • cover cover 314 is used to cover the support structure, and at the same time is used as a part of the underboard apron of the vehicle.
  • the supporting structure is an integrally formed supporting structure of an integrated structure.
  • the support structure is the main body of the entire sliding table structure, which plays the role of supporting the entire suspension frame.
  • the integrally formed integrated support structure makes the support structure good in integrity, rigidity and strength.
  • the wear strip is aluminum alloy or other material wear strip
  • the supporting structure is a supporting structure of carbon fiber material.
  • the support structure is made of carbon fiber material, which has a certain amount of elastic deformation space and small weight, which makes the overall weight of the sliding table smaller, adapting to the trend of lightweight development of magnetic levitation vehicles; wear strips are made of aluminum alloy or other materials. Grinding strips make the wear-resistant strips have better abrasion resistance.
  • the thickness of the wear strip is any value greater than or equal to 4 mm and less than or equal to 6 mm;
  • the wear-resistant strip is fixed to the supporting structure by means of glue connection and screw connection.
  • the wear strip With such a thickness of the wear strip, the degree of wear resistance can meet the requirements; the wear strip is fixed to the support structure by means of gluing and screw connection, so that the fixing of the wear strip and the support structure is more stable.
  • FIG. 16 is a perspective schematic view of the traction buffer device of the underframe shown in FIG. 2;
  • FIG. 17 is a top view of the traction buffer device shown in FIG. 16;
  • FIG. 18 is a cross-sectional view of C-C shown in FIG.
  • the traction buffer device 200 is fixed on the floor assembly 100.
  • the traction buffer device 200 includes:
  • the traction buffer body 210 includes a traction buffer cavity 211 and a traction buffer cavity filling layer 212; wherein the traction buffer cavity filling layer 212 is filled in the hollow part of the traction buffer cavity 211, so
  • the traction buffer cavity 211 is a composite material traction buffer cavity
  • the traction buffer cavity filling layer 212 is a composite material traction buffer cavity filling layer
  • the outer bottom end of the traction buffer cavity is used to interact with the traction buffer cavity.
  • the wear plate 220 is fixed on the front end surface of the traction buffer cavity and is used to connect with the coupler of the magnetic levitation vehicle.
  • the wear plate of the traction buffer device is fixed on the front end surface of the traction buffer cavity, the wear plate is used to connect with the coupler of the maglev vehicle, and the bottom end of the traction buffer body is used to connect with the underframe of the maglev vehicle.
  • the traction buffer body includes a traction buffer cavity and a traction buffer cavity filling layer, the traction buffer cavity filling layer is filled in the hollow part of the traction buffer cavity, the traction buffer cavity and the traction buffer cavity filling layer are used It is a composite material.
  • the density of the composite material is small, which makes the weight of the entire traction buffer device smaller; the manufacturing process of the traction buffer device does not require welding, and the manufacturing process is relatively simple. Since the traction buffer device of the embodiment of the present application adopts a composite material traction buffer body, the traction buffer device has a small weight, is relatively simple to manufacture, and occupies less space under the vehicle.
  • the traction buffer cavity 211 is a traction buffer cavity with a Japanese-shaped closed structure
  • the wear plate 220 is fixed on the outer side of the front long frame plate of the traction buffer cavity.
  • the traction buffer cavity is a Japanese-shaped closed structure. In this way, the structure of the traction buffer cavity is relatively stable.
  • the wear plate is fixed on the outer side of the front long frame plate of the traction buffer cavity, that is, the traction buffer
  • the outer side of the front long frame plate of the cavity is the front end surface of the traction buffer cavity.
  • the support inner frame of the traction buffer cavity is a cavity structure, and the hollow part of the support inner frame has vertical reinforcement ribs 213;
  • the traction buffer cavity filling layer 212 is also filled in the hollow parts on both sides of the reinforcing rib 213.
  • the vertical stiffeners on the hollow part of the support inner frame divide the hollow part of the support inner frame into two smaller hollow parts, and the small hollow parts on both sides of the stiffener are also filled with traction buffer cavity filling layer . In this way, the structure supporting the inner frame is stronger, which in turn makes the structure of the entire traction buffer device more stable.
  • both ends of the front long frame plate of the traction buffer cavity have everted hollow cylindrical structures 214, and the traction buffer cavity filling layer 212 is also filled in The hollow part of a hollow columnar structure;
  • the hollow columnar structure has an upper bottom, a lower bottom and a side surface, and the hollow columnar structure is communicated with the traction buffer cavity at an intersecting position.
  • the hollow columnar structure and the traction buffer cavity are connected to each other, and the respective hollow parts are connected, and the connected hollow parts are filled with a filling layer of the traction buffer cavity.
  • the existence of the hollow columnar structure makes the fixed position of the traction buffer device and the floor of the magnetic levitation vehicle larger, and the traction force transmitting the coupler is larger; at the same time, the top of the hollow columnar structure can also be used to fix other parts of the maglev vehicle, providing installation position.
  • the density of the foam is lower than that of the carbon fiber material. In this way, on the premise of ensuring the strength of the traction buffer body, the weight of the traction buffer body is smaller and the cost is lower.
  • the traction buffer body is an integrally formed integral structure.
  • the traction buffer body itself is not fixedly connected with a plurality of components through the connecting piece, but through an integrally formed integral structure, the structure of the traction buffer body is stronger.
  • the traction buffer cavity is provided with a wiring hole 215;
  • the rear long frame plate of the traction buffer cavity is provided with two wiring holes 215, and each of the short frame plates of the traction buffer cavity is provided with one wiring hole 215.
  • the existence of the wiring hole makes the wiring space reserved for wiring.
  • the bottom end of the traction buffer cavity has a fixing inner flange 216 protruding inward, and the fixing inner flange has a bolt hole;
  • the fixing inner flange 216 is used to pass bolts, the bolt holes of the fixing inner flange and the floor of the magnetic levitation vehicle are formed and fixed, and the bottom end of the traction buffer cavity is also used to connect with the magnetic levitation vehicle.
  • the floor composition of the vehicle is fixed by gluing.
  • the fixing inner flange is arranged on the inner side of the traction buffer cavity, saving the peripheral space on the left and right sides of the traction buffer cavity.
  • the fixing outer flange 217 is used to pass bolts, the bolt holes of the fixing outer flange and the floor of the magnetic levitation vehicle form a fixation, and the bottom end of the traction buffer cavity is also used to The floor composition of the magnetic levitation vehicle is fixed by gluing.
  • the inner and outer sides of the rear long frame plate of the traction buffer cavity, and the inner and outer sides of the front long frame plate of the traction buffer cavity are glued and screwed to the floor of the maglev vehicle, so that the traction buffer device and The fixing of the floor of the maglev vehicle is more stable.
  • the wear-resistant plate is an aluminum plate with a thickness greater than or equal to 5 and less than or equal to 10 mm, which is fixed on the outer side of the front long frame plate of the traction buffer cavity by glueing and screwing;
  • the thickness of the single-layer cavity wall of the traction buffer cavity is any value greater than or equal to 15 mm and less than or equal to 20 mm.
  • the traction buffer device can achieve sufficient strength.
  • the chassis also includes:
  • test device 400 the test device 400 is arranged at one end of the head end beam 113 facing the direction of the front of the vehicle, and is connected to the floor assembly by means of bolt connection and riveting;
  • test device 400 is used for testing or traction of a magnetic levitation vehicle.
  • the underframe also provides installation interfaces for other structures, such as installation interfaces for side walls, end walls and cabs of the vehicle body, installation interfaces for the center pin of the suspension frame, installation interfaces for the equipment under the vehicle, and brakes. Install the interface and so on.
  • the magnetic levitation vehicle of the embodiment of the present application includes the bottom plate described in the first embodiment.
  • connection can also be detachable or integrated; it can be mechanical, electrical, or communication; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. Or the interaction between two elements.
  • connection can also be detachable or integrated; it can be mechanical, electrical, or communication; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. Or the interaction between two elements.
  • the "on" or “under” of the first feature of the second feature may include direct contact between the first feature and the second feature, or include the first feature.
  • the second feature is not in direct contact but through another feature between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the first feature of the second feature include the first feature directly above and diagonally above the second feature, or it simply means that the level of the first feature is smaller than the second feature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)

Abstract

Il est divulgué un sous-châssis pour un véhicule à sustentation magnétique, le sous-châssis comprenant un ensemble plancher (100) et une pluralité de tables coulissantes (300), l'ensemble plancher comprenant un cadre de sol (110), un cadre rigide (120), un panneau supérieur (140) et un panneau inférieur (130) ; le cadre de plancher est constitué de matériaux composites ; le cadre rigide est fixé à un bord latéral de la structure de plancher ; le panneau supérieur est fixé à la surface supérieure du cadre de plancher et est constitué de matériaux composites ; le panneau inférieur est fixé sur la surface inférieure du cadre de plancher et est constitué de matériaux composites ; la table coulissante comprend une structure de support (310) en matériaux composites ; et la structure de support est fixée sur la surface supérieure du panneau supérieur. Il est divulgué un véhicule à sustentation magnétique équipé du sous-châssis. Le sous-châssis a un poids léger, répond à l'exigence que le poids total du véhicule à sustentation magnétique soit relativement léger, et a pour effet d'optimiser son agencement spatial.
PCT/CN2019/125326 2019-12-09 2019-12-13 Sous-châssis pour véhicule à sustentation magnétique et véhicule à sustentation magnétique WO2021114269A1 (fr)

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CN201911251284.0A CN113022609B (zh) 2019-12-09 2019-12-09 一种用于磁悬浮车辆的底架及磁悬浮车辆

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