WO2022001608A1 - 转向架和具有其的轨道车辆 - Google Patents

转向架和具有其的轨道车辆 Download PDF

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Publication number
WO2022001608A1
WO2022001608A1 PCT/CN2021/099217 CN2021099217W WO2022001608A1 WO 2022001608 A1 WO2022001608 A1 WO 2022001608A1 CN 2021099217 W CN2021099217 W CN 2021099217W WO 2022001608 A1 WO2022001608 A1 WO 2022001608A1
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WO
WIPO (PCT)
Prior art keywords
brake
cover body
sound insulation
cover
frame
Prior art date
Application number
PCT/CN2021/099217
Other languages
English (en)
French (fr)
Inventor
李百成
蔡永宾
潘俊艳
Original Assignee
比亚迪股份有限公司
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Filing date
Publication date
Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Publication of WO2022001608A1 publication Critical patent/WO2022001608A1/zh

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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
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/50—Other details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/045—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems
    • B61B13/04—Monorail systems
    • B61B13/06—Saddle or like balanced type
    • 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
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/50—Other details
    • B61F5/52—Bogie frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0207—Materials belonging to B32B25/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter

Definitions

  • the present application relates to the technical field of rail transportation, and in particular, to a bogie and a rail vehicle having the same.
  • the brake disc when the rail vehicle is running at high speed, the brake disc may have a large disturbance effect on the air, resulting in a large air noise, which also has a large impact on the riding comfort of the passengers in the rail vehicle and the surrounding environment. Negative impact.
  • the present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a bogie, which has a good insulating effect on the air noise generated by the brake, effectively reduces the noise inside and outside the vehicle, and is small in size and low in cost.
  • the present application also proposes a rail vehicle having the above bogie.
  • a bogie includes: a frame; a brake, wherein the brake is arranged on the frame; a sound insulation cover, the sound insulation cover is sealedly connected to the frame, and the sound insulation cover is An accommodating space is defined between the frames, and the brake is arranged in the accommodating space.
  • the bogie of the embodiment of the present application by sealingly connecting the sound insulation cover and the frame and the brake is arranged in the accommodating space defined between the sound insulation cover and the frame, when the bogie is applied to a rail vehicle, it can be well insulated
  • the air noise generated by the brake can effectively reduce the noise inside and outside the car, while improving the ride comfort of the passengers in the car, it can avoid the impact of the noise outside the car on the surrounding environment.
  • the sound insulation cover is small in volume and compact in structure, which can reduce the occupied space of the entire bogie and reduce the cost of materials.
  • the sound insulation cover includes: a first cover body; a second cover body, the second cover body is detachably connected to the frame, and the second cover body is detachable Connected above the first cover body, the second cover body, the first cover body and the frame together define the accommodating space.
  • the bogie further includes a suspension device, the suspension device is disposed on the frame, the suspension device is disposed opposite to the first cover, and an upper surface of the suspension device lower than the lower end surface of the second cover.
  • the bogie further includes a running wheel, the running wheel is connected to the brake, the running wheel is at least partially higher than the upper surface of the suspension device, and the center of the running wheel is The axis is below the upper surface of the suspension.
  • the brake includes a brake disc and a brake caliper, the brake caliper is used for clamping or loosening the brake disc; the brake caliper is connected to the brake caliper.
  • the second cover bodies are opposite to each other, and the width of the second cover body is greater than the width of the first cover body.
  • the upper end of the first cover body has a first flange extending horizontally outward
  • the lower end of the second cover body has a second flange extending horizontally outward
  • the first The flange and the second flange are connected by a plurality of fasteners to realize the connection of the first cover body and the second cover body.
  • At least one sealing gasket is provided between the first flange and the second flange.
  • the brake includes a brake line, an opening adapted to pass through the brake line is formed on the sound insulation cover, and a seal is provided between the opening and the brake line.
  • the frame includes an electric assembly installation portion, one side of the electric assembly installation portion is sealedly connected to the sound insulation cover, and the other side of the electric assembly installation portion is connected with a
  • the electric assembly is used for outputting braking torque
  • the installation part of the electric assembly has a through installation opening
  • the electric assembly is at least partially accommodated in the installation opening.
  • the sound insulation cover includes a support layer, a damping layer, a sound absorption layer and a sound insulation layer which are arranged in sequence along a direction away from the center of the accommodating space.
  • the support layer is a glass fiber reinforced plastic part, a stainless steel part or an aluminum alloy part.
  • the sound absorbing layer is a foamed rubber layer.
  • the sound insulation layer is an EVA layer or a nitrile rubber layer.
  • the rail vehicle according to the embodiment of the second aspect of the present application includes the bogie according to the embodiment of the first aspect of the present application.
  • FIG. 1 is a perspective view of a bogie according to an embodiment of the present application.
  • FIG. 2 is a side view of a bogie according to an embodiment of the present application.
  • Fig. 3 is a sectional view along line A-A in Fig. 2;
  • FIG. 4 is a partial perspective view of a bogie according to an embodiment of the present application.
  • Figure 5 is an enlarged view of the B part circled in Figure 4.
  • FIG. 6 is a perspective view of a sound insulation cover according to an embodiment of the present application.
  • Figure 7 is a cross-sectional view of the acoustic enclosure shown in Figure 6;
  • Fig. 8 is an enlarged view of the C portion circled in Fig. 7;
  • FIG. 9 is a perspective view of an electric assembly according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a rail vehicle according to an embodiment of the present application.
  • 1121 Brake pipeline
  • 12 Electric assembly installation part
  • 13 Frame body
  • 2211 mounting hole
  • 23 second cover body
  • 231 second flange
  • the bogie 100 according to the embodiment of the first aspect of the present application will be described below with reference to FIGS. 1-10 .
  • the bogie 100 may be applied to a rail vehicle 200 such as a straddle-type monorail vehicle.
  • a rail vehicle 200 such as a straddle-type monorail vehicle.
  • the application of the bogie 100 to the rail vehicle 200 is taken as an example for illustration.
  • the bogie 100 includes a frame 1 , a brake 11 and a sound insulation cover 2 .
  • the brake 11 is provided on the frame 1 .
  • the sound insulation cover 2 is sealedly connected to the frame 1 , a receiving space 21 is defined between the sound insulation cover 2 and the frame 1 , and the brake 11 is arranged in the receiving space 21 .
  • the sound insulation cover 2 is sealedly connected with the frame 1 in this application, it means that the connection between the sound insulation cover 2 and the frame 1 forms a closed figure. That is to say, the connection between the sound insulation cover 2 and the frame 1 forms a closed-loop structure connected end to end.
  • the sound insulation cover 2 is connected to the side of the frame 1 , and the side of the sound insulation cover 2 facing the frame 1 may be provided with an opening.
  • the brake 11 is arranged in the accommodating space 21
  • the noise generated by the high-speed rotation of the brake 11, such as air broadband noise can be isolated in the accommodating space 21, so that it can be well reduced
  • the noise inside and outside the car can improve the comfort of passengers in the car while avoiding the impact of the noise outside the car on the surrounding environment.
  • the sound insulation cover 2 is small in volume and compact in structure, which can reduce the cost of materials.
  • the bogie 100 of the embodiment of the present application by sealingly connecting the sound insulation cover 2 and the frame 1 and disposing the brake 11 in the accommodating space 21 defined between the sound insulation cover 2 and the frame 1 , when the bogie 100 is applied to the track When the vehicle 200 is used, the air noise generated by the brake 11 can be effectively isolated, thereby effectively reducing the noise inside and outside the vehicle, and while improving the ride comfort of the passengers in the vehicle, the influence of the outside noise on the surrounding environment can be avoided.
  • the sound insulation cover 2 has a small volume and a compact structure, which can reduce the occupied space of the entire bogie 100 and can reduce the cost of materials.
  • the sound insulation cover 2 includes a first cover body 22 and a second cover body 23 .
  • the second cover 23 is detachably connected to the frame 1
  • the second cover 23 is detachably connected above the first cover 22 .
  • the second cover 23 , the first cover 22 and the frame 1 jointly define an accommodation Space 21. Therefore, by arranging the first cover body 22 and the second cover body 23 described above, the brake 11 can be repaired only by removing the second cover body 23 , the structure is simple, the assembly and disassembly are convenient, and the inspection efficiency can be improved.
  • the first cover body 22 can be detachably connected with the frame 1 , so as to further facilitate the assembly and disassembly of the sound insulation cover 2 .
  • the first cover body 22 and the second cover body 23 may be connected to the frame 1 by threaded fasteners such as bolts. In this way, a firm connection between the first cover body 22 and the frame 1 and a firm connection between the second cover body 23 and the frame 1 can be achieved, and the assembly and disassembly are convenient.
  • the bogie 100 further includes a suspension device 3 , the suspension device 3 is arranged on the frame 1 , and the suspension device 3 may be located on the side of the sound insulation cover 2 away from the brake 11 .
  • the suspension device 3 and the first cover body 22 are opposite to each other, and the upper surface of the suspension device 3 is lower than the lower end surface of the second cover body 23 . In this way, the interference between the second cover body 23 and the suspension device 3 can be avoided, and the installation and removal of the second cover body 23 is facilitated.
  • the bogie 100 further includes a running wheel 4 , the running wheel 4 is connected with the brake 11 , the running wheel 4 is at least partially higher than the upper surface of the suspension device 3 , and the center of the running wheel 4 is The axis is lower than the upper surface of the suspension device 3 .
  • the protruding part of the running wheel 4 from the floor is made smaller, which not only achieves a certain low floor, but also reduces the proportion of the interior space occupied by the protruding part of the running wheel 4, and reduces the floor height and the center of gravity of the rail vehicle 200 at the same time. It ensures the passenger capacity and the permeability of the car, and improves the riding comfort of passengers.
  • the running wheels 4 are arranged in the frame 1 .
  • the brake disc 111 can be connected to the axle of the running wheel 4 .
  • the brake caliper 112 can be used to clamp the brake disc 111 , so that the brake disc 111 generates a friction torque on the axle of the traveling wheel 4 , thereby realizing the braking of the rail vehicle 200 .
  • the upper surface of the suspension device 3 is connected to the bottom of the vehicle body of the rail vehicle 200 , and the central axis of the running wheel 4 is located below the horizontal plane of the floor.
  • the dimensions of the portion of the running wheel 4 above the floor are smaller than those of the portion below the floor. This arrangement can further reduce the proportion of the interior space of the vehicle occupied by the protruding portion of the running wheel 4, thereby ensuring the riding comfort of passengers.
  • the brake 11 includes a brake disc 111 and a brake caliper 112 , the brake caliper 112 is used to clamp or loosen the brake disc 111 , and the brake caliper 112 Opposite to the second cover body 23 , and the width of the second cover body 23 is greater than the width of the first cover body 22 .
  • the brake caliper 112 face the second cover body 23, and the width of the second cover body 23 is larger than the width of the first cover body 22, the brake caliper 112 can be accommodated in the second cover body 23 and the steering wheel In the accommodating space 21 between the racks 100, the width of the first cover body 22 can be smaller, the mold structure is simple, the cost can be reduced, and the structure of the entire sound insulation cover 2 is more compact, saving space. In addition, with this arrangement, interference between the first cover body 22 and the suspension device 3 can also be avoided.
  • the middle portion of the second cover body 23 has a convex structure protruding toward a direction away from the brake 11 .
  • the “middle portion” should be understood in a broad sense in this application, which refers to the part between the upper end surface and the lower end surface of the second cover body 23 , and is not limited to the center of the second cover body 23 .
  • the protruding structure arranged in this way can easily accommodate the brake caliper 112 and at the same time reduce the width of the surrounding structure, thereby reducing the occupied space.
  • the first cover body 22 has a generally semi-circular structure, which is adapted to the shape of the brake disc 111 and improves the structural compactness of the bogie 100 .
  • the second cover 23 may include a first connecting portion and a second connecting portion that are connected up and down, and the first connecting portion is connected to the top of the second connecting portion.
  • the first connecting portion is generally arc-shaped
  • the second connecting portion is generally rectangular
  • the bottom of the second connecting portion is provided with a stepped portion to reduce the space occupied by the second cover 23 .
  • the upper end of the first cover body 22 has a first flange 221 extending horizontally outward
  • the lower end of the second cover body 23 has a second extending horizontally outward
  • the flanges 231 , the first flanges 221 and the second flanges 231 are connected by a plurality of fasteners (not shown in the figure) to realize the sealing connection between the first cover body 22 and the second cover body 23 .
  • "plurality" means two or more.
  • the sealed connection between the first cover 22 and the second cover 23 can be well achieved, and the air noise generated by the brake 11 can be isolated while ensuring the isolation.
  • the structure of the sound insulation cover 2 is simple, and the installation is convenient and reliable.
  • the direction “outside” can be understood as the direction away from the center of the sound insulation cover 2
  • the opposite direction is defined as "inside”, that is, the direction toward the center of the sound insulation cover 2 .
  • a plurality of mounting holes 2211 may be formed on the first flange 221 and the second flange 231 respectively.
  • the second cover body 23 can be placed on top of the first cover body 22 from top to bottom, and the first flange 221 and the second flange 231 are opposite to each other, and then a plurality of threaded fasteners such as bolts
  • the plurality of mounting holes 2211 on the second flange 231 are respectively threaded to connect with the plurality of mounting holes 2211 on the first flange 221 .
  • the way of threaded fastener connection has the advantages of simple, reliable and easy disassembly.
  • At least one sealing gasket 6 may be provided between the first flange 221 and the second flange 231 . This arrangement can further ensure the sealed connection between the first cover body 22 and the second cover body 23, thereby effectively isolating the air noise generated by the brake 11 and reducing the noise inside and outside the vehicle.
  • the brake 11 includes a brake line 1121 , and an opening 24 suitable for passing through the brake line 1121 is formed on the sound insulation cover 2 , and the opening 24 is connected to the brake line 1121 . There are seals in between. Therefore, by providing the above-mentioned sealing member, the air noise generated by the brake 11 can be prevented from being transmitted from the opening 24, so that the interior noise and the exterior noise can be reduced.
  • the present application is not limited thereto, and the shape of the opening 24 may also be other shapes, such as a rectangle or the like.
  • two openings 24 are formed on the sound insulation cover 2 , the openings 24 are circular openings, and the two brake pipelines 1121 pass through the two openings 24 respectively so as to pass from the two openings 24 .
  • the accommodating space 21 protrudes inside.
  • the number of brake lines 1121 may not be equal to the number of openings 24 , for example, multiple brake lines 1121 may pass through the same opening 24 .
  • FIG. 1 Two openings 24 are shown in FIG. 1 for the purpose of illustration, but after reading the technical solution of the present application, it is obvious that the ordinary skilled person can understand that the solution is applied to the technical solution of other numbers of openings 24, which also fall within the scope of protection of the present application.
  • the frame 1 includes an electric assembly mounting portion 12 , and one side of the electric assembly mounting portion 12 is sealedly connected to the sound insulation cover 2 , the other side of the electric assembly installation part 12 is connected with the electric assembly 5, the electric assembly 5 is used for outputting the braking torque, the electric assembly installation part 12 has a through installation port, and the electric assembly 5 is at least partially accommodated in the installation In the mouth.
  • the sound insulation cover 2 can be connected to the side of the electric assembly mounting portion 12 away from the center of the frame 1
  • the electric assembly 5 can be connected to the side of the electric assembly installation portion 12 adjacent to the center of the frame 1 .
  • the sound insulation cover 2 and the electric assembly 5 can be sealed and connected on both sides of the electric assembly installation portion 12, and the installation opening is sealed, so that the noise generated by the high-speed rotation of the brake 11, such as air broadband noise, can be effectively isolated in the accommodating space. 21, which can effectively reduce the noise inside and outside the car, and ensure the comfort of passengers in the car.
  • the electric assembly 5 can output braking torque, that is, control the motor to output a torque opposite to the direction of wheel rotation to realize the deceleration or braking of the rail vehicle 200 .
  • the mechanical braking of the brake 11 only works in rare situations such as emergency braking, so that the working time of the brake 11 is short, and the problem of overheating is not easy to occur.
  • the electric assembly 5 can also be used to output driving torque to control the normal operation of the rail vehicle 200 .
  • the frame 1 may further include a frame body 13 , a suspension mounting portion 14 , a guide wheel mounting portion 15 , a stabilizing wheel mounting portion 16 , and the like.
  • the suspension mounting portion 14 , the guide wheel mounting portion 15 , and the stabilizing wheel mounting portion 16 may all be disposed on the frame body 13 .
  • the suspension device 3 can be installed between the vehicle body and the frame body 13 through the suspension mounting portion 14, so that the vertical, lateral and longitudinal forces between the vehicle body and the frame body 13 can be transmitted to provide the rail vehicle 200 with a second Step-by-step vibration reduction to improve the stability of the vehicle body;
  • the guide wheel 7 can be horizontally installed on the guide wheel mounting part 15 to realize the guiding effect of the bogie 100; of smooth operation.
  • the stabilizing wheel mounting portion 16 or only the guiding wheel mounting portion 15 can be provided.
  • the stabilizing wheel 8 or the guiding wheel 7 alone can guide and maintain the balance of the vehicle body and prevent the vehicle body tilt.
  • the electric assembly 5 is sealingly connected to the electric assembly mounting portion 12 . That is, the connection between the electric assembly 5 and the electric assembly mounting portion 12 forms a closed figure. In this way, the electric assembly 5 can seal the above-mentioned other side of the electric assembly installation portion 12 to prevent the air noise generated by the brake 11 from being transmitted to the inside or outside of the vehicle through the installation port, so as to ensure that the noise can be isolated in the accommodating space 21 .
  • the electric assembly 5 may include a motor, a reducer, etc., and the electric assembly 5 may be coaxially disposed with the rim 41 of the traveling wheel 4 . In this way, the transmission efficiency between the electric assembly 5 such as the motor, the speed reducer and the running wheel 4 can be improved, thereby achieving better braking effect and driving effect.
  • the electric assembly installation portion 12 has a substantially arched structure. In this way, the electric assembly can be installed while ensuring the sealing of the installation opening, and the electric assembly can be improved.
  • the structural strength of the installation portion 12 enables the electric assembly installation portion 12 to better strengthen the structure of the frame 1 .
  • the sound insulating cover 2 includes a support layer 25 , a damping layer 26 , a sound absorbing layer 27 and a sound insulating layer 28 that are sequentially arranged in a direction away from the center of the accommodation space 21 .
  • the supporting layer 25 has greater rigidity and can play a good supporting role; the damping layer 26 can effectively avoid the supporting layer 25 Vibration is generated, which can effectively prevent the rail vehicle 200 from generating noise due to the vibration of the sound insulation cover 2 itself during the running process;
  • the air noise generated by the brake 11 is transmitted from the accommodating space 21 to the inside or outside of the vehicle.
  • the support layer 25 may be a glass fiber reinforced plastic or the like. In this way, the support layer 25 has a certain rigidity, which can play a supporting role and at the same time has a certain elasticity, which is convenient for installation. In addition, the supporting layer 25 thus arranged has the characteristics of light weight, low cost, good fire resistance and the like.
  • the present application is not limited thereto, and the support layer 25 may also be an aluminum alloy part, a stainless steel part, or the like.
  • the sound absorbing layer 27 may be a foamed rubber layer. But not limited to this. As a result, the sound absorbing layer 27 can have a better sound absorbing effect on air noise such as medium and low frequency noise, thereby further reducing interior noise and exterior noise.
  • the sound insulation layer 28 may be a heavy sound insulation layer (referring to a sound insulation layer made of a sound insulation material with a heavier mass and a higher density) such as EVA (ethylene-vinyl acetate copolymer, which refers to " "Ethylene-vinyl acetate copolymer” and its rubber-plastic foam material) layer or nitrile rubber layer, etc. But not limited to this. In this way, the sound insulation layer 28 has a good sound insulation effect, so that the sound insulation cover 2 can effectively isolate the air noise generated by the brake 11 .
  • EVA ethylene-vinyl acetate copolymer, which refers to " "Ethylene-vinyl acetate copolymer” and its rubber-plastic foam material
  • a rail vehicle 200 according to an embodiment of the second aspect of the present application includes the bogie 100 according to the embodiment of the first aspect of the present application.
  • the rail vehicle 200 such as a straddle-type monorail vehicle, can well isolate the air noise generated by the brake 11 by using the above-mentioned bogie 100 , thereby effectively reducing interior noise and exterior noise.
  • first feature and “second feature” may include one or more of the features.
  • the first feature "above”, “over” and “above” the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is level higher than Second feature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)

Abstract

一种转向架(100)和具有其的轨道车辆(200)，转向架(100)包括：构架(1)、制动器(11)和隔声罩(2)，制动器(11)设置在构架(1)上；隔声罩(2)与构架(1)密封连接，隔声罩(2)与构架(1)之间限定出容纳空间(21)，制动器(11)设置在容纳空间(21)内。

Description

转向架和具有其的轨道车辆
相关申请的交叉引用
本申请要求申请日为2020年06月28日、申请号为202010599942.1、专利申请名称为“转向架和具有其的轨道车辆”的优先权，其全部内容通过引用并入到本申请中。
技术领域
本申请涉及轨道交通技术领域，尤其是涉及一种转向架和具有其的轨道车辆。
背景技术
相关技术中，轨道车辆在高速运行时制动盘可能会对空气有较大的扰动作用，从而导致产生较大的空气噪声，对轨道车辆内乘客的乘车舒适性和周边环境也有较大的负面影响。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请提出一种转向架，所述转向架对制动器产生的空气噪声具有良好的隔绝效果，有效降低车内噪声和车外噪声，且体积较小，成本较低。
本申请的还提出一种具有上述转向架的轨道车辆。
根据本申请第一方面实施例的转向架，包括：构架；制动器，所述制动器设置在所述构架上；隔声罩，所述隔声罩与所述构架密封连接，所述隔声罩与所述构架之间限定出容纳空间，所述制动器设置在所述容纳空间内。
根据本申请实施例的转向架，通过使隔声罩与构架密封连接且制动器设置在隔声罩与构架之间限定出的容纳空间内，当转向架应用于轨道车辆时，可以很好地隔绝制动器产生的空气噪声，从而有效降低车内噪声和车外噪声，在提高车内乘客的乘车舒适性的同时，可以避免车外噪声对周边环境的影响。而且，隔声罩的体积较小，结构紧凑，可以减小整个转向架的占用空间，且可以降低用料成本。
根据本申请的一些实施例，所述隔声罩包括：第一罩体；第二罩体，所述第二罩体可拆卸地与所述构架连接，且所述第二罩体可拆卸地连接在所述第一罩体的上方，所述第二罩体、所述第一罩体与所述构架共同限定出所述容纳空间。
根据本申请的一些实施例，所述转向架还包括悬挂装置，所述悬挂装置设置在所述构架上，所述悬挂装置与所述第一罩体相对设置，且所述悬挂装置的上表面低于所述第二罩 体的下端面。
根据本申请的一些实施例，所述转向架还包括走行轮，所述走行轮与所述制动器连接，所述走行轮至少部分高于所述悬挂装置的上表面，且所述走行轮的中心轴线低于所述悬挂装置的上表面。
根据本申请的一些实施例，所述制动器包括制动盘和制动夹钳，所述制动夹钳用于对所述制动盘进行夹紧或放松；所述制动夹钳与所述第二罩体相对，且所述第二罩体的宽度大于所述第一罩体的宽度。
根据本申请的一些实施例，所述第一罩体的上端具有水平向外延伸的第一翻边，所述第二罩体的下端具有水平向外延伸的第二翻边，所述第一翻边和所述第二翻边通过多个紧固件连接以实现所述第一罩体与所述第二罩体的连接。
根据本申请的一些实施例，所述第一翻边和所述第二翻边之间设有至少一个密封垫片。
根据本申请的一些实施例，所述制动器包括制动管线，所述隔声罩上形成有适于穿过制动管线的开口，所述开口与所述制动管线之间设有密封件。
根据本申请的一些实施例，所述构架包括电动总成安装部，所述电动总成安装部的一侧与所述隔声罩密封连接，所述电动总成安装部的另一侧连接有电动总成，所述电动总成用于输出制动扭矩，所述电动总成安装部具有贯通的安装口，所述电动总成至少部分容纳在所述安装口内。
根据本申请的一些实施例，所述隔声罩包括沿远离所述容纳空间中心的方向依次设置的支撑层、阻尼层、吸音层和隔音层。
根据本申请的一些实施例，所述支撑层为玻璃钢件、不锈钢件或铝合金件。
根据本申请的一些实施例，所述吸音层为发泡橡胶层。
根据本申请的一些实施例，所述隔音层为EVA层或丁腈橡胶层。
根据本申请第二方面实施例的轨道车辆，包括根据本申请上述第一方面实施例的转向架。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本申请实施例的转向架的立体图；
图2是根据本申请实施例的转向架的侧视图；
图3是沿图2中A-A线的剖面图；
图4是根据本申请实施例的转向架的局部立体图；
图5是图4中圈示的B部的放大图；
图6是根据本申请实施例的隔声罩的立体图；
图7是图6中所示的隔声罩的剖面图；
图8是图7中圈示的C部的放大图；
图9是根据本申请实施例的电动总成的立体图；
图10是根据本申请实施例的轨道车辆的结构示意图。
附图标记：
100：转向架；
1：构架；11：制动器；111：制动盘；112：制动夹钳；
1121：制动管线；12：电动总成安装部；13：框架本体；
14：悬挂安装部；15：导向轮安装部；16：稳定轮安装部；
2：隔声罩；21：容纳空间；22：第一罩体；221：第一翻边；
2211：安装孔；23：第二罩体；231：第二翻边；
24：开口；25：支撑层；26：阻尼层；27：吸音层；
28：隔音层；3：悬挂装置；4：走行轮；41：轮辋；
5：电动总成；6：密封垫片；7：导向轮；8：稳定轮；
200：轨道车辆。
具体实施方式
下面详细描述本申请的实施例，参考附图描述的实施例是示例性的，下面详细描述本申请的实施例。
下面参考图1-图10描述根据本申请第一方面实施例的转向架100。转向架100可以应用于轨道车辆200例如跨座式单轨车辆。在本申请下面的描述中，以转向架100应用于轨道车辆200为例进行说明。
如图1-图4所示，根据本申请第一方面实施例的转向架100，包括构架1、制动器11和隔声罩2。制动器11设置在构架1上。隔声罩2与构架1密封连接，隔声罩2与构架1之间限定出容纳空间21，制动器11设置在容纳空间21内。
需要说明的是，“隔声罩2与构架1密封连接”在本申请中指的是，隔声罩2与构架1的连接处形成了封闭的图形。也就是说，隔声罩2与构架1的连接形成了首尾相连的闭环 结构。在本申请的一些示例中，如图1-图3所示，隔声罩2连接在构架1的侧面，隔声罩2的面向构架1的一侧可以设置有开口。
由此，当转向架100应用于轨道车辆200时，由于制动器11设置在容纳空间21内，制动器11高速旋转产生的噪声例如空气宽频噪声可以被隔绝在容纳空间21内，从而可以很好地降低车内噪声和车外噪声，在提高车内乘客的乘车舒适性的同时，可以避免车外噪声对周边环境的影响。而且，隔声罩2的体积较小，结构紧凑，可以降低用料成本。
根据本申请实施例的转向架100，通过使隔声罩2与构架1密封连接且制动器11设置在隔声罩2与构架1之间限定出的容纳空间21内，当转向架100应用于轨道车辆200时，可以有效隔绝制动器11产生的空气噪声，从而有效降低车内噪声和车外噪声，在提高车内乘客的乘车舒适性的同时，可以避免车外噪声对周边环境的影响。而且，隔声罩2的体积较小，结构紧凑，可以减小整个转向架100的占用空间，且可以降低用料成本。
在本申请的一些实施例中，如图3、图4、图6和图7所示，隔声罩2包括第一罩体22和第二罩体23。第二罩体23可拆卸地与构架1连接，且第二罩体23可拆卸地连接在第一罩体22的上方，第二罩体23、第一罩体22与构架1共同限定出容纳空间21。由此，通过设置上述分体的第一罩体22和第二罩体23，仅需拆除第二罩体23就可以完成制动器11的检修，结构简单，装拆方便，且可以提高检修效率。其中，第一罩体22可以与构架1可拆卸地连接，从而进一步方便隔声罩2的装拆。
在本申请的一些示例中，如图3、图4、图6和图7所示，第一罩体22和第二罩体23可以通过螺纹紧固件例如螺栓连接在构架1上。如此设置，可以实现第一罩体22与构架1之间的牢靠连接以及第二罩体23与构架1之间的牢靠连接，且方便装拆。
在本申请的一些实施例中，参照图1，转向架100还包括悬挂装置3，悬挂装置3设置在构架1上，悬挂装置3可位于隔声罩2的远离制动器11的一侧，悬挂装置3与第一罩体22彼此相对，且悬挂装置3的上表面低于第二罩体23的下端面。如此设置，可以避免第二罩体23和悬挂装置3产生干涉，方便第二罩体23的安装和拆卸。
在本申请的一些实施例中，参照图10，转向架100还包括走行轮4，走行轮4与制动器11连接，走行轮4至少部分高于悬挂装置3的上表面，且走行轮4的中心轴线低于悬挂装置3的上表面。由此，使得走行轮4凸出地板的部分较小，既实现了一定的低地板，又减少了走行轮4凸出部分占据车内空间的比例，在降低地板高度和轨道车辆200重心的同时保证了载客量和车内通透性，提高了乘客的乘坐舒适性。
在本申请的一些示例中，结合图10，走行轮4设置在构架1内。制动盘111可以与走行轮4的轮轴相连。制动夹钳112可以用于夹持制动盘111，使制动盘111对走行轮4的轮轴产生摩擦力矩，从而实现轨道车辆200的制动。悬挂装置3的上表面与轨道车辆200 的车体底部相连，走行轮4的中心轴线位于地板的水平面以下。走行轮4的位于地板以上的部分的尺寸小于其位于地板以下的部分的尺寸。如此设置，可以进一步减少走行轮4凸出部分占据车内空间的比例，保证乘客的乘坐舒适性。
在本申请的一些实施例中，参照图3，制动器11包括制动盘111和制动夹钳112，制动夹钳112用于对制动盘111进行夹紧或放松，制动夹钳112与第二罩体23相对，且第二罩体23的宽度大于第一罩体22的宽度。由此，通过使制动夹钳112与第二罩体23相对，且第二罩体23的宽度大于第一罩体22的宽度，制动夹钳112可以容纳在第二罩体23与转向架100之间的容纳空间21内，从而使第一罩体22的宽度可以较小，模具结构简单，可以降低成本，且整个隔声罩2的结构更加紧凑，节省空间。另外，如此设置，还可以避免第一罩体22与悬挂装置3发生干涉。
在本申请的一些示例中，结合图1和图3，第二罩体23的中部具有朝向远离制动器11的方向凸出的凸起结构。需要说明的是，“中部”在本申请中应当作广义理解，其指的是第二罩体23的上端面和下端面之间的部分，而不仅限于第二罩体23的中央。如此设置的凸起结构在便于容纳制动夹钳112的同时，减少了周围结构的宽度，从而可以减少占用空间。在本申请的一些示例中，如图2所示，第一罩体22大体呈半圆形结构，适应于制动盘111的形状，提高转向架100的结构紧凑性。
在一些实施例中，第二罩体23可以包括上下相连的第一连接部和第二连接部，第一连接部连接在第二连接部的顶部。第一连接部大体呈弧形结构，第二连接部大体呈矩形结构，且第二连接部的底部设有台阶部，以减小第二罩体23的占用空间。
在本申请的一些实施例中，结合图4和图5，第一罩体22的上端具有水平向外延伸的第一翻边221，第二罩体23的下端具有水平向外延伸的第二翻边231，第一翻边221和第二翻边231通过多个紧固件(图未示出)连接以实现第一罩体22与第二罩体23的密封连接。在本申请的描述中，“多个”的含义是两个或两个以上。当需要检修制动器11时，仅需要拆下多个紧固件，将第二罩体23取下即可。由此，通过设置上述的第一翻边221和第二翻边231，可以很好地实现第一罩体22和第二罩体23之间的密封连接，在保证隔绝制动器11产生的空气噪声的同时，使隔声罩2的结构简单，安装方便且可靠。这里，需要说明的是，方向“外”可以理解为远离隔声罩2中心的方向，其相反方向被定义为“内”，即朝向隔声罩2中心的方向。
在本申请的一些示例中，如图4和图5所示，第一翻边221和第二翻边231上可以分别形成有多个安装孔2211。安装时，可以自上而下将第二罩体23放在第一罩体22的顶部，并使第一翻边221与第二翻边231彼此相对，然后使多个螺纹紧固件例如螺栓分别穿过第二翻边231上的多个安装孔2211与第一翻边221上的多个安装孔2211螺纹连接。螺纹紧 固件连接的方式具有简单可靠且便于拆卸的优点。
在本申请的一些实施例中，第一翻边221和第二翻边231之间可以设有至少一个密封垫片6。如此设置，可以进一步保证第一罩体22和第二罩体23之间的密封连接，从而有效隔绝制动器11产生的空气噪声，降低车内噪声和车外噪声。
在本申请的一些实施例中，参照图1和图4，制动器11包括制动管线1121，隔声罩2上形成有适于穿过制动管线1121的开口24，开口24与制动管线1121之间设有密封件。由此，通过设置上述的密封件，可以避免制动器11产生的空气噪声从开口24传出，从而可以降低车内噪声和车外噪声。当然，本申请不限于此，开口24的形状还可以为其它形状例如矩形等。
在本申请的一些示例中，参照图1和图4，隔声罩2上形成有两个开口24，开口24为圆形开口，两根制动管线1121分别从两个开口24穿过以从容纳空间21内伸出。其中，制动管线1121的数量也可以与开口24的数量不相等，例如可以为多根制动管线1121从同一个开口24穿过。
图1中显示了两个开口24用于示例说明的目的，但是普通技术人员在阅读了本申请的技术方案之后、显然可以理解将该方案应用到其它数量的开口24的技术方案中，这也落入本申请的保护范围之内。
在本申请的一些实施例中，如图1、图3、图4和图9所示，构架1包括电动总成安装部12，电动总成安装部12的一侧与隔声罩2密封连接，电动总成安装部12的另一侧连接有电动总成5，电动总成5用于输出制动扭矩，电动总成安装部12具有贯通的安装口，电动总成5至少部分容纳在安装口内。其中，隔声罩2可以连接在电动总成安装部12的远离构架1中心的一侧，电动总成5可以连接在电动总成安装部12的邻近构架1中心的一侧。如此设置，隔声罩2和电动总成5可以密封连接在电动总成安装部12的两侧，将安装口密封，使制动器11高速旋转产生的噪声例如空气宽频噪声可以有效被隔绝在容纳空间21内，从而可以有效降低车内噪声和车外噪声，保证车内乘客的乘车舒适性。
在轨道车辆200的行驶过程中，电动总成5可以输出制动扭矩，即控制电机输出与车轮转动方向相反的力矩来实现轨道车辆200的减速或制动。制动器11的机械制动只有在紧急制动等少数情况才会起作用，从而制动器11的工作时间较短，不容易产生过热的问题。当然，电动总成5还可以用于输出驱动扭矩，以控制轨道车辆200的正常运行。
在本申请的一些示例中，参照图1，构架1还可以包括框架本体13、悬挂安装部14、导向轮安装部15、稳定轮安装部16等。其中，悬挂安装部14、导向轮安装部15、稳定轮安装部16可以均设置在框架本体13上。由此，悬挂装置3可以通过悬挂安装部14安装在车体和框架本体13之间，从而可以传递车体与框架本体13之间的垂向、横向和纵向力， 为轨道车辆200提供第二级减振，提高车体稳定性；导向轮7可以水平安装于导向轮安装部15，以实现转向架100的导向作用；稳定轮8可以水平安装于稳定轮安装部16，从而保证轨道车辆200的平稳运行。
当然，也可以根据构架1的结构设计需求，只设置稳定轮安装部16或者只设置导向轮安装部15，此时单独稳定轮8或者导向轮7即可起到导向并且维持车体平衡防止车体倾斜的作用。
在本申请的一些示例中，参照图1、图3、图4和图9，电动总成5与电动总成安装部12密封连接。也就是电动总成5和电动总成安装部12的连接处形成了封闭的图形。如此设置，电动总成5可以将电动总成安装部12的上述另一侧封闭，避免制动器11产生的空气噪声通过安装口传播到车内或车外，保证可以将噪声隔绝在容纳空间21内。其中，电动总成5可以包括电机和减速器等，电动总成5可以与走行轮4的轮辋41同轴设置。这样，可以提高电动总成5例如电机、减速器与走行轮4之间的传动效率，从而实现较好的制动效果和驱动效果。
在本申请的一些示例中，参照图1和图4，电动总成安装部12大致呈拱形结构，这样，在实现电动总成5的安装、保证密封安装口的同时，可以提高电动总成安装部12的结构强度，使电动总成安装部12可以对构架1的结构起到更好的加强作用。
在本申请的一些实施例中，如图8所示，隔声罩2包括沿朝向远离容纳空间21中心的方向依次设置的支撑层25、阻尼层26、吸音层27和隔音层28。由此，通过设置上述的支撑层25、阻尼层26、吸音层27和隔音层28，支撑层25具有较大的刚度，能够起到很好的支撑作用；阻尼层26能够有效避免支撑层25产生振动，从而可以有效避免轨道车辆200在运行过程中由于隔声罩2自身振动而产生噪声；吸音层27和隔音层28使隔声罩2具有较好的吸声和隔声的效果，避免制动器11产生的空气噪声从容纳空间21传播到车内或车外。
在本申请的一些实施例中，支撑层25可以为玻璃钢件等。如此设置，使支撑层25具有一定的刚度，能够起到支撑作用的同时，还具有一定的弹性，方便安装。另外，如此设置的支撑层25具有质量轻、成本低、防火性能好等特点。当然，本申请不限于此，支撑层25还可以为铝合金件、不锈钢件等。
在本申请的一些实施例中，吸音层27可以为发泡橡胶层。但不限于此。由此，吸音层27可以对空气噪声例如中低频噪声产生较好的吸音效果，从而进一步降低车内噪声和车外噪声。
在本申请的一些实施例中，隔音层28可以为重质隔音层(指由质量较重、密度较高的隔音材料制成的隔音层)例如EVA(ethylene-vinyl acetate copolymer，指的是“乙烯- 醋酸乙烯共聚物”及使用其制成的橡塑发泡材料)层或丁腈橡胶层等。但不限于此。如此设置，隔音层28具有很好的隔音效果，从而使隔声罩2可以有效隔绝制动器11产生的空气噪声。
参照图10所示，根据本申请第二方面实施例的轨道车辆200，包括根据本申请上述第一方面实施例的转向架100。
根据本申请实施例的轨道车辆200例如跨座式单轨车辆，通过采用上述的转向架100，可以很好地隔绝制动器11产生的空气噪声，从而有效降低车内噪声和车外噪声。
根据本申请实施例的轨道车辆200的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
在本申请的描述中，“第一特征”、“第二特征”可以包括一个或者更多个该特征。
在本申请的描述中，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (14)

  1. 一种转向架，其特征在于，包括：
    构架；
    制动器，所述制动器设置在所述构架上；
    隔声罩，所述隔声罩与所述构架密封连接，所述隔声罩与所述构架之间限定出容纳空间，所述制动器设置在所述容纳空间内。
  2. 根据权利要求1所述的转向架，其特征在于，所述隔声罩包括：
    第一罩体；
    第二罩体，所述第二罩体可拆卸地与所述构架连接，且所述第二罩体可拆卸地连接在所述第一罩体的上方，所述第二罩体、所述第一罩体与所述构架共同限定出所述容纳空间。
  3. 根据权利要求2所述的转向架，其特征在于，还包括悬挂装置，所述悬挂装置设置在所述构架上，所述悬挂装置与所述第一罩体相对设置，且所述悬挂装置的上表面低于所述第二罩体的下端面。
  4. 根据权利要求3所述的转向架，其特征在于，还包括走行轮，所述走行轮与所述制动器连接，所述走行轮至少部分高于所述悬挂装置的上表面，且所述走行轮的中心轴线低于所述悬挂装置的上表面。
  5. 根据权利要求2-4中任一项所述的转向架，其特征在于，所述制动器包括制动盘和制动夹钳，所述制动夹钳用于对所述制动盘进行夹紧或放松；
    所述制动夹钳与所述第二罩体相对设置，且所述第二罩体的宽度大于所述第一罩体的宽度。
  6. 根据权利要求2-5中任一项所述的转向架，其特征在于，所述第一罩体的上端具有水平向外延伸的第一翻边，所述第二罩体的下端具有水平向外延伸的第二翻边，所述第一翻边和所述第二翻边通过多个紧固件连接以实现所述第一罩体与所述第二罩体的连接。
  7. 根据权利要求6所述的转向架，其特征在于，所述第一翻边和所述第二翻边之间设有至少一个密封垫片。
  8. 根据权利要求1-7中任一项所述的转向架，其特征在于，所述制动器包括制动管线，所述隔声罩上形成有适于穿过制动管线的开口，所述开口与所述制动管线之间设有密封件。
  9. 根据权利要求1-8中任一项所述的转向架，其特征在于，所述构架包括电动总成安装部，所述电动总成安装部的一侧与所述隔声罩密封连接，所述电动总成安装部的另一侧连接有电动总成，所述电动总成用于输出制动扭矩，所述电动总成安装部具有贯通的安装口，所述电动总成至少部分容纳在所述安装口内。
  10. 根据权利要求1-8中任一项所述的转向架，其特征在于，所述隔声罩包括沿远离所述容纳空间中心的方向依次设置的支撑层、阻尼层、吸音层和隔音层。
  11. 根据权利要求10所述的转向架，其特征在于，所述支撑层为玻璃钢件、不锈钢件或铝合金件。
  12. 根据权利要求10或11所述的转向架，其特征在于，所述吸音层为发泡橡胶层。
  13. 根据权利要求10-12中任一项所述的转向架，其特征在于，所述隔音层为EVA层或丁腈橡胶层。
  14. 一种轨道车辆，其特征在于，包括根据权利要求1-13中任一项所述的转向架。
PCT/CN2021/099217 2020-06-28 2021-06-09 转向架和具有其的轨道车辆 WO2022001608A1 (zh)

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