CN114056367A - Inboard suspension direct drive radial bogie and truck - Google Patents
Inboard suspension direct drive radial bogie and truck Download PDFInfo
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- CN114056367A CN114056367A CN202010770745.1A CN202010770745A CN114056367A CN 114056367 A CN114056367 A CN 114056367A CN 202010770745 A CN202010770745 A CN 202010770745A CN 114056367 A CN114056367 A CN 114056367A
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- Prior art keywords
- axle box
- suspension
- wheel
- bogie
- main body
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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
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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
- B61F15/00—Axle-boxes
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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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/10—Bolster supports or mountings incorporating fluid springs
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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
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
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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
- B61F5/52—Bogie frames
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides an inboard suspension direct-drive radial bogie and a truck, which comprise a wheel set axle box device, a framework main body and at least one suspension damping device; one end of the suspension vibration damper is connected with the wheel set axle box device, the other end of the suspension vibration damper is connected with the bottom end of the framework main body, the framework main body and the suspension vibration damper are fixed on the inner side of the wheel set axle box device, the framework main body comprises a cross beam and two side beams, and the side beams comprise an upper cover plate and a lower cover plate; the invention provides an inboard-suspended direct-drive radial bogie which solves the problems that the existing outboard-suspended bogie can cause the self weight of a vehicle body to be heavy, the energy consumption is increased, the effective carrying capacity of the vehicle body is influenced, and the structure, parameters and driving capability of the existing inboard-suspended bogie cannot meet the performance and driving requirements of a truck.
Description
Technical Field
The invention relates to a railway vehicle bogie, in particular to an inboard suspension direct-drive radial bogie and a truck.
Background
Along with the development of economy and technology, the low-carbon and environment-friendly running, intelligent operation and maintenance management and information transportation service of the railway train increasingly become urgent requirements for improving competitiveness and ensuring the sustainable market, wherein a bogie is one of main parts of the train, the bogie mainly comprises a wheel set axle box device, a framework, a vibration damping system, a driving device, a basic braking device and the like, the load, the length and the volume of the train can be increased by arranging the bogie, the running speed of the train is improved, the bogie simultaneously plays a role in supporting the train body, bearing and transmitting various loads from the train body to the wheel set or from a wheel rail to the train body, and the axle weight is uniformly distributed, in addition, the safe running of the train can be ensured by arranging the bogie, and the train can flexibly run along a linear line and smoothly pass through a curved line.
Currently, the bogie generally adopts an outer suspension structure, namely a framework and a damping system are arranged outside a wheel-set axle box device.
However, when the bogie of the existing outside suspension structure is adopted, the width of the framework is set to be wider, so that the size of the whole vehicle structure is larger, meanwhile, the dead weight of the bogie is generally more than 4.5t, the light weight space is insufficient, the dead weight of a vehicle body is large, and a part of traction force is used for the invalid weight of a transport vehicle in the cargo transportation service process, so that the energy consumption is increased, and the effective carrying capacity is influenced.
Disclosure of Invention
The invention provides an inboard suspension direct-drive radial bogie and a truck, aiming at solving the problems that the self weight of the truck body is heavy, the energy consumption is increased, the effective carrying capacity of the truck body is influenced and the structure, parameters and driving capacity of the existing inboard suspension bogie are not suitable for the performance and driving requirements of the truck.
The invention provides an inboard suspended direct-drive radial bogie and a truck, comprising:
the wheel-set axle box device, the framework main body and at least one suspension damping device;
one end of the suspension vibration damper is connected with the wheel-set axle box device, the other end of the suspension vibration damper is connected with the bottom end of the framework main body, the framework main body and the suspension vibration damper are fixed on the inner side of the wheel-set axle box device, and the top end of the framework main body is connected with a vehicle body;
the frame main body includes: the cross beam is welded between the two side beams, and the side beams comprise an upper cover plate and a lower cover plate;
the wheel set axle box device is characterized in that a guide pillar is arranged on one side, facing the lower cover plate, of the upper cover plate, the guide pillar elastically positions the wheel set axle box device through an elastic node, a limiting hole is formed in the surface of the lower cover plate, the limiting hole limits the wheel set axle box device, and the limiting hole is formed close to the two ends of the upper cover plate.
In an embodiment of the present invention, the wheelset axle box apparatus includes: the brake disc and the motor are mounted in the middle of the axle, motor flanges are arranged on two sides of the motor, and the motor is used for providing driving force for the vehicle body; the motor is a split type permanent magnet direct drive motor.
In an embodiment of the present invention, the wheelset axle box assembly further includes: axles, wheels, bearings and axle boxes;
the wheel is located at the outermost end of the axle, the bearing is located inside the wheel, and the axle box is located between the bearing and the wheel;
the wheel with be provided with the holding ring between the bearing, the holding ring is used for adjusting the inboard interval of wheel, the ring of making an uproar falls in the installation on the wheel.
In a specific embodiment of the invention, the axle box is provided with a mounting hole, the axle box is mounted on the bearing through the mounting hole, and a damper seat is further arranged on one side of the axle box, which is positioned at the center of the bogie;
the top of the axle box is provided with a node mounting surface, the end head of the axle box is provided with a vertical surface facing the center of the bogie, and the vertical surface is used as a mounting surface of the wheel set adjusting device.
In a specific embodiment of the invention, the side beam adopts a concave structure, one side of the center of the cross beam is provided with a motor seat, and the other side of the center of the cross beam is provided with a braking hanging seat;
the vehicle connector is characterized in that a side bearing seat is arranged on the outer side of the middle of the side beam, a damper seat is arranged on the inner side of the end part of the side beam, an elastic side bearing is installed on the side bearing seat, a spherical center plate is arranged in the middle of the cross beam, and the elastic side bearing and the spherical center plate form a vehicle connector together.
In a specific embodiment of the present invention, the suspension damper device includes: a spring set and an elastic node;
the spring groups are respectively arranged on two sides of the axle box, the elastic node is arranged on the top of the axle box, each spring group comprises an outer circular spring and an inner circular spring, the height of each inner circular spring is greater than that of each outer circular spring, and a low-friction bushing is arranged in each elastic node;
the suspension damping device further comprises: and one end of the hydraulic damper is connected with the framework main body, and the other end of the hydraulic damper is connected with the axle box.
In a specific embodiment of the present invention, the elastic node includes: the elastic body comprises a base, two elastic bodies and two inner rings;
an inner cavity is formed in the base, the two inner rings are located in the center of the elastic node, and the two elastic bodies are located between the two inner rings and the inner cavity.
In a specific embodiment of the present invention, the method further includes: a wheel set adjustment device located below the frame body;
the wheel set adjusting device comprises pull rods and fasteners, wherein the pull rods are respectively connected with the axle boxes at the opposite corners and fastened through the fasteners.
In a specific embodiment of the present invention, the method further includes: the braking device is positioned in the middle of the framework main body;
the monitoring system comprises a vibration sensor, a load sensor, a temperature sensor and a speed sensor.
The invention also provides a truck comprising at least: any of the inboard suspension direct drive radial trucks described above.
The invention provides an inner side suspension direct-drive radial bogie and a truck, which comprise a wheel set axle box device, a frame main body and at least one suspension damping device, wherein one end of the suspension damping device is connected with the wheel set axle box device, the other end of the suspension damping device is connected with the bottom end of the frame main body, the frame main body and the suspension damping device are fixed on the inner side of the wheel set axle box device, the top end of the frame main body is connected with a truck body, and the frame main body comprises: the cross beam is welded between the two side beams, and the side beams comprise an upper cover plate and a lower cover plate; the wheel set axle box device is characterized in that a guide pillar is arranged on one side, facing the lower cover plate, of the upper cover plate, a limiting hole is formed in the surface of the lower cover plate, the guide pillar penetrates through the limiting hole and is matched with the elastic node inner ring to elastically position the wheel set axle box device, the limiting hole limits the wheel set axle box device through the elastic node base, and the limiting hole is formed close to two ends of the upper cover plate.
Therefore, the frame main body and the suspension vibration damper are arranged on the inner side of the wheel set axle box device, the width of the frame and the length of an axle can be reduced, the volume of the axle and the frame and the material usage amount are reduced, the dead weight of a vehicle body is further reduced, the problem that the dead weight of the vehicle body is large due to the fact that the frame is too wide is solved, meanwhile, the limiting hole is formed in the surface of the lower cover plate and can be used for limiting horizontal displacement of the wheel set axle box device, and therefore the inner side suspension direct-drive radial bogie provided by the invention solves the problems that the vehicle body is heavy in weight, energy consumption is increased, the effective carrying capacity of the vehicle body is influenced due to the fact that the existing outer side suspension bogie is adopted, and the problems that the existing inner side suspension bogie structure, parameters and driving capacity cannot meet the performance and driving requirements of a truck are solved.
Drawings
FIG. 1 is a schematic structural view of an inboard suspension direct drive radial bogie provided by an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic structural diagram of a wheel-pair axle box assembly provided by the embodiment of the invention;
FIG. 4 is a schematic diagram of a cross-sectional view of a portion of a wheelset axlebox assembly provided by an embodiment of the present invention;
FIG. 5 is a schematic view of an axle housing provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a frame body according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of an end portion of a frame side rail provided in accordance with an embodiment of the present invention;
FIG. 8 is a schematic structural view of a suspension damping system and an underlying monitoring system provided by an embodiment of the present invention;
FIG. 9 is a longitudinal center cross-sectional view of a suspension damping system provided by an embodiment of the present invention;
fig. 10 is a schematic structural diagram of an elastic node according to an embodiment of the present invention.
Description of reference numerals:
10-wheel-pair axle box assemblies;
11-axle;
111-a central hole;
112-motor flange;
12-a wheel;
121-a noise reduction ring;
13-a bearing;
14-axle boxes;
141-mounting holes;
142-a node mounting face;
143-vertical plane;
15-a positioning ring;
16-a brake disc;
17-a motor;
18-motor fixing means;
20-a frame body;
21-a cross beam;
211-motor base;
212-a brake hanger;
213-spherical center plate;
22-side beam;
221-a side bearing seat;
222-a resilient side bearing;
223-damper seat;
224-upper cover plate;
225-lower cover plate;
2251-a limiting hole;
226-guide pillars;
30-suspension damping means;
31-a spring set;
311-cylindrical spring;
312-inner round spring;
32-elastic node;
321-a base;
322-an elastomer;
323-inner ring;
324-low friction liner;
33-hydraulic shock absorbers;
34-a spring seat;
40-wheel set adjusting device;
50-a braking device;
60-a monitoring system;
61-a vibration sensor;
62-a load cell;
63-a temperature sensor;
64-speed sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of an inboard suspension direct-drive radial bogie provided by an embodiment of the invention, fig. 2 is a schematic sectional view from a-a in fig. 1, fig. 3 is a schematic structural diagram of a wheelset axle box device provided by an embodiment of the invention, fig. 4 is a schematic structural sectional view of a part of the wheelset axle box device provided by an embodiment of the invention, fig. 5 is a schematic structural diagram of an axle box provided by an embodiment of the invention, fig. 6 is a schematic structural diagram of a frame main body provided by an embodiment of the invention, fig. 7 is a schematic structural diagram of an end portion of a side beam of the frame provided by an embodiment of the invention, fig. 8 is a schematic structural diagram of a suspension damping system and an underlying monitoring system provided by an embodiment of the invention, fig. 9 is a longitudinal central sectional view of the suspension damping system provided by an embodiment of the invention, and fig. 10 is a schematic structural diagram of an elastic node provided by an embodiment of the invention.
At present, a part of European railway carriages adopt a bogie with an inner side suspension structure, but the European railway carriages structurally adopt special passenger carriage structures such as an air spring, a traction pull rod, a rotating arm positioning structure, an integral driving motor and the like, have complex structures and heavy weight and cannot be used on railway wagons; in addition, some truck enterprises propose trucks with inner side suspension structures, but one of the trucks is mainly positioned by an elastic guide pillar, and is mainly suspended by flat rubber or V-shaped rubber, so that the suspension system cannot provide large deflection under the empty condition, the dynamic performance cannot be effectively improved, the elastic guide pillar positioning cannot provide enough longitudinal and transverse displacement of wheel pairs, and meanwhile, a driving system is lacked, and the self-driving requirement of the truck cannot be met.
Therefore, the embodiment provides an inboard suspension direct-drive radial bogie which is used for supporting a train body and bearing and transmitting various loads from the train body to the wheel set or from the wheel track to the train body so as to improve the running stability of the train.
Referring to fig. 1 and 2, in the present embodiment, the inboard suspension direct-drive radial bogie may include a wheelset axle box assembly 10, a frame body 20, and at least one suspension damper assembly 30, in the present embodiment, the suspension damper assembly 30 is specifically illustrated by providing 4 sets, where one end of the suspension damper assembly 30 is connected to the wheelset axle box assembly 10, the other end of the suspension damper assembly 30 is connected to the bottom end of the frame body 20, and the top end of the frame body 20 is connected to the vehicle body.
In this embodiment, referring to fig. 1, the frame main body 20 and the suspension vibration damping device 30 are fixed inside the wheel-set axle box device 10, so that the width of the frame main body 20 can be reduced, the volume and the material usage amount of the frame main body 20 can be reduced, the self weight of the vehicle body can be further reduced, and the problems that the vehicle body is heavy, the energy consumption is increased and the effective carrying capacity of the vehicle body is affected due to the adoption of the existing outside suspension bogie can be solved.
In this embodiment, the wheelset axle box devices 10 are specifically disposed on the outermost side of the bogie and respectively connect the bogie and the track, and in this embodiment, the description will be specifically given by taking the example of disposing two wheelset axle box devices 10.
In this embodiment, the frame body 20 includes a cross beam 21 and two side beams 22 (see fig. 6 in particular), the cross beam 21 is welded between the two side beams 22, each side beam 22 includes an upper cover plate 224 and a lower cover plate 225, wherein a guide pillar 226 (see fig. 7 in particular) is disposed on one side of the upper cover plate 224 facing the lower cover plate 225, the guide pillar 226 is used for connecting the elastic joint 32, a limiting hole 2251 is formed in the surface of the lower cover plate 225, so that the guide pillar 226 passes through the limiting hole 2251, the guide pillar 226 elastically positions the axle box device 10, the limiting hole 2251 can be used for limiting the horizontal displacement of the axle box device 10, and the limiting hole 2251 is formed near two ends of the upper cover plate 224.
The inner suspension direct-drive radial bogie provided by the embodiment comprises a wheelset pedestal device 10, a frame main body 20 and at least one suspension damping device 30, wherein one end of the suspension damping device 30 is connected with the wheelset pedestal device 10, the other end of the suspension damping device 30 is connected with the bottom end of the frame main body 20, the frame main body 20 and the suspension damping device 30 are fixed on the inner side of the wheelset pedestal device 10, the top end of the frame main body 20 is connected with a vehicle body, the frame main body 20 comprises a cross beam 21 and two side beams 22, the cross beam 21 is welded between the two side beams 22, and the side beams 22 comprise an upper cover plate 224 and a lower cover plate 225; guide posts 226 are arranged on one side, facing the lower cover plate 225, of the upper cover plate 224, limiting holes 2251 are formed in the surface of the lower cover plate 225, the guide posts 226 elastically position the axle box device 10, the limiting holes 2251 limit the axle box device 10, and the limiting holes 2251 are formed near two ends of the upper cover plate 224.
By thus disposing the frame main body 20 and the suspension damper device 30 inside the wheelset pedestal assembly 10, the width of the frame and the length of the axle can be reduced, and the volume and material usage of the axle 11 and the frame can be reduced, thereby reducing the dead weight of the vehicle body, avoiding the problem of large dead weight of the vehicle body caused by over-wide framework, meanwhile, the surface of the lower cover plate 225 is provided with a limiting hole 2251, the guide post 226 passes through the limiting hole 2251, the guide post 226 elastically positions the axle box device 10, the limiting hole 2251 can be used for limiting the horizontal displacement of the axle box device 10, therefore, the inner side suspension direct-drive radial bogie provided by the invention solves the problems that the adoption of the existing outer side suspension bogie can cause the self weight of the vehicle body to be heavy, increase the energy consumption and influence the effective carrying capacity of the vehicle body, and the problem that the structure, parameters and driving capability of the existing inner side suspension bogie are not suitable for the performance and driving requirement of the truck is solved.
Based on the above embodiment, referring to fig. 3, the wheelset axle-box assembly 10 may include a brake disc 16 and a motor 17, wherein the brake disc 16 and the motor 17 are installed in the middle of the axle 11, the motor 17 is installed on a motor base 211 of the axle 11 (see fig. 6 in particular), and the brake disc 16 may be a conventional brake disc 16 and installed on the brake disc base of the axle 11.
In this embodiment, it should be noted that the motor 17 may be an integral permanent-magnet direct-drive motor, or a split permanent-magnet direct-drive motor, and in this embodiment, the split permanent-magnet direct-drive motor is specifically taken as an example for description, so that when being installed, the installation sequence can be freely selected, the assembly of other parts is not affected, and the maintenance is easy.
In addition, as shown in fig. 1, in order to fix the motor, a motor fixing device 18 may be further included, wherein both ends of the motor fixing device 18 are respectively connected to the axle box device 10 and the frame main body 20.
On the basis of the above embodiment, referring to fig. 3, the wheel-set axle-box assembly 10 may further include an axle 11, wheels 12, bearings 13, and axle boxes 14, wherein the wheels 12 are located at the outermost ends of the axle 11, the bearings 13 are located inside the wheels 12, and the axle boxes 14 are located between the bearings 13 and the wheels 12.
In this embodiment, the wheels 12 are disposed at the outermost ends of the axles 11, so that not only the width of the frame and the length of the axles can be reduced, but also the wheels 12 can be a noise barrier, thereby achieving the effect of low noise of the bogie.
In this embodiment, referring to fig. 4, a positioning ring 15 may be further disposed between the wheel 12 and the bearing 13, wherein the distance between the inner sides of the wheel 12 may be adjusted by disposing the positioning ring 15 between the wheel 12 and the bearing 13.
In this embodiment, referring to fig. 4, the axle 11 may also be a hollow shaft, wherein the diameter of the hollow shaft center hole 111 may be greater than or equal to 65mm, specifically, the diameter of the hollow shaft center hole 111 may be 65mm, and may also be 70 mm.
In this embodiment, referring to fig. 4, motor ribs 112 may be further disposed on both sides of the axle 11, the motor 17 may be fixed by the motor ribs 112, and in addition, a noise reduction ring 121 may be further mounted on the wheel 12, so that the wheel 12 becomes a noise reduction wheel 12, thereby reducing noise generated during operation of the vehicle body and reducing the problem of confusion to residents along the railway.
In addition to the above embodiments, referring to fig. 5, the axle box 14 is provided with a mounting hole 141, wherein the mounting hole 141 is oval, and both sides of the top of the mounting hole 141 are provided with fixing flanges, and the axle box 14 can be seated on the outer ring of the bearing 13 through the top of the mounting hole 141.
In this embodiment, the top of the axle box 14 is provided with a node mounting surface 142, wherein the node mounting surface 142 is connected with the elastic node 32, the end of the axle box 14 is provided with a vertical surface 143 facing the center of the bogie, wherein the vertical surface 143 serves as a mounting surface for the wheel set adjusting device, and in addition, the side of the axle box 14 located at the center of the bogie is further provided with a damper seat 223.
On the basis of the above embodiment, referring to fig. 6, the frame body 20 includes the cross beam 21 and two side beams 22, the cross beam 21 is welded between the two side beams 22 to form an H-shaped structure, so that the rigidity of the bogie can be enhanced and the running stability of the train can be improved by integrally welding the cross beam 21 and the side beams 22, wherein the side beams 22 adopt a center-recessed structure, so that the center of gravity of the train body can be lowered during running.
In this embodiment, one side of the center of the cross beam 21 is provided with a motor seat 211, the other side is provided with a brake hanging seat 212, the outer side of the middle of the side beam 22 is provided with a side bearing seat 221, the inner side of the end part of the side beam 22 is provided with a damper seat 223, an elastic side bearing 222 is mounted on the side bearing seat 221, the middle of the cross beam 21 is provided with a spherical center plate 213, and the elastic side bearing 222 and the spherical center plate 213 form a vehicle interface together, so that the universality of the existing vehicle can be met.
On the basis of the above-mentioned embodiment, referring to fig. 8 and 9, the suspension damping device 30 includes a spring group 31 and an elastic node 32, wherein the spring group 31 is respectively installed at both sides of the axle box 14, and the elastic node 32 is installed at the top of the axle box 14.
In this embodiment, the spring assembly 31 includes an outer circular spring 311 and an inner circular spring 312, and the height of the inner circular spring 312 is greater than that of the outer circular spring 311, so that the two-stage stiffness spring assembly 31 loaded by the inner circular spring 312 first can be formed.
In this embodiment, the suspension damper device 30 further includes a spring seat 34 and a hydraulic damper 33, one end of the hydraulic damper 33 is connected to the frame body 20, the other end of the hydraulic damper 33 is connected to the axle box 14, and the spring seat 34 is located on the top of the outer spring group 31.
On the basis of the above embodiment, referring to fig. 10, the elastic node 32 includes: a base 321, two elastic bodies 322 and two inner rings 323.
In this embodiment, an inner cavity is formed in the base 321, specifically, the inner cavity may have an oblong cross-sectional shape, the two inner rings 323 are located at the center of the elastic node 32, the two inner rings 323 form a split circular tube structure, and the two elastic bodies 322 may specifically be two elastic bodies, and are located between the two inner rings 323 and the inner cavity, and are respectively fixed to the inner cavity at one end of the base 321 and the inner ring 323, so that two elastic structures separated from each other may be formed, and when the inner rings 323 receive a longitudinal force, the pressure may be transmitted to the elastic body 322 at one side, so that the problem that the service life of the entire structure is reduced due to the fact that the elastic body 322 at the other side receives a tensile force may be avoided.
In this embodiment, referring to fig. 9, a low-friction bushing 324 may be further disposed in the elastic node 32, and the low-friction bushing 324 may reduce wear caused by relative change in vertical positions of the guide pillar 226 and the elastic node 32.
In this embodiment, the base 321 is fixed on the node mounting surface 142 at the top of the axle box 14, a wheel pair limiting structure is formed between the base 321 and the limiting hole 2251 on the frame body, a longitudinal one-side gap between the base 321 and the limiting hole 2251 may be set to be greater than 7mm, and a transverse gap may be set to be greater than 10mm, so that a requirement that a wheel pair is adjusted to a radial position when a vehicle passes through a curved line can be met.
On the basis of the above embodiment, referring to fig. 1, in this embodiment, a wheel set adjusting device 40 may be further included, and the wheel set adjusting device 40 is located below the frame main body 20, so that the radial curve of the vehicle body can be met, the abrasion of the wheel 12 can be reduced, and the service life of the wheel 12 can be prolonged.
In this embodiment, the wheelset adjustment devices 40 include tie rods and fasteners, and the tie rods are respectively connected to the diagonal axle boxes 14 and fastened by the fasteners.
On the basis of the above embodiment, referring to fig. 8, the frame further includes a braking device 50 and a monitoring system 60, wherein the braking device 50 is located in the middle of the frame body 20.
In this embodiment, the monitoring system 60 includes a vibration sensor 61, a load sensor 62, a temperature sensor 63, and a speed sensor 64, wherein the vibration sensor 61 mainly collects signals and wirelessly transmits the signals to a vehicle-level system for monitoring the running state of the bogie and the state of the vibration of the cargo, and is installed at the top of the middle of the side sill 22.
In this embodiment, 4 load sensors 62 may be specifically arranged, and are respectively mounted at the bottom of the lower cover plate 225 at the end of the side beam 22, and are supported on the inner spherical surface of the spring seat 34 through the outer spherical surface of the bottom, and collect signals in a wired manner and provide the signals to a vehicle-level system for vehicle load monitoring statistics and overload and unbalance analysis.
In this embodiment, the temperature sensor 63 is a non-contact infrared temperature sensor, and is installed in a threaded through hole at the bottom of the axle box 14, and the center of the temperature sensor 63 is aligned with the outer ring of the bearing 13, and collects signals in a wired manner and provides the signals to a vehicle-level system for monitoring the state of the bearing 13.
In this embodiment, the speed sensor 64 is fixed to the inner side of the axle housing 14, and collects signals in a wired manner and provides the signals to a vehicle-level system for monitoring the vehicle speed and wheel-set coasting.
In this embodiment, the monitoring system 60 is arranged to monitor the running speed of the vehicle body, the temperature of the bearing 13 and the like in real time and collect signals, so as to provide a basis for online monitoring and management of the vehicle system.
On the basis of the embodiment, the invention also provides a truck comprising any one of the inner side suspension direct-drive radial bogies, and the truck can support a truck body, bear and transfer various loads from the truck body to a wheel pair or from a wheel rail to the truck body and improve the running stability of the truck by arranging the inner side suspension direct-drive radial bogies.
Claims (10)
1. An inboard suspension direct drive radial bogie, comprising:
the wheel-set axle box device, the framework main body and at least one suspension damping device;
one end of the suspension vibration damper is connected with the wheel-set axle box device, the other end of the suspension vibration damper is connected with the bottom end of the framework main body, the framework main body and the suspension vibration damper are fixed on the inner side of the wheel-set axle box device, and the top end of the framework main body is connected with a vehicle body;
the frame main body includes: the cross beam is welded between the two side beams, and the side beams comprise an upper cover plate and a lower cover plate;
a guide pillar is arranged on one side, facing the lower cover plate, of the upper cover plate, and the guide pillar is connected with an elastic node to elastically position the wheel set axle box device; the lower cover plate is provided with a limiting hole on the surface, the limiting hole limits the wheel set axle box device, and the limiting hole is close to two ends of the upper cover plate.
2. The inboard suspension direct drive radial bogie of claim 1, wherein the wheelset axle box assembly comprises: the brake disc and the motor are arranged in the middle of an axle, motor flanges are arranged on two sides of the motor, and the motor is used for providing driving force for the vehicle body;
the motor is a split type permanent magnet direct drive motor.
3. The inboard suspension direct drive radial bogie of claim 2, wherein the wheelset axle box assembly further comprises: axles, wheels, bearings and axle boxes;
the wheel is located at the outermost end of the axle, the bearing is located inside the wheel, and the axle box is located between the bearing and the wheel;
the wheel with be provided with the holding ring between the bearing, the holding ring is used for adjusting the inboard interval of wheel, the ring of making an uproar falls in the installation on the wheel.
4. The inner side suspension direct-drive radial bogie as claimed in claim 3, wherein the axle box is provided with a mounting hole, the axle box is mounted on the bearing through the mounting hole, and a damper seat is further arranged on one side of the axle box, which is located at the center of the bogie;
the top of the axle box is provided with a node mounting surface, the end head of the axle box is provided with a vertical surface facing the center of the bogie, and the vertical surface is used as a mounting surface of the wheel set adjusting device.
5. The inner side suspension direct-drive radial bogie according to any one of claims 1 to 4, wherein the side beams are of a concave structure, one side of the center of the cross beam is provided with a motor base, and the other side of the center of the cross beam is provided with a brake hanging base;
the vehicle connector is characterized in that a side bearing seat is arranged on the outer side of the middle of the side beam, a damper seat is arranged on the inner side of the end part of the side beam, an elastic side bearing is installed on the side bearing seat, a spherical center plate is arranged in the middle of the cross beam, and the elastic side bearing and the spherical center plate form a vehicle connector together.
6. The inboard suspension direct drive radial bogie of any one of claims 1 to 4, wherein the suspension damping means comprises: a spring set and an elastic node;
the spring groups are respectively arranged on two sides of the axle box, the elastic node is arranged on the top of the axle box, each spring group comprises an outer circular spring and an inner circular spring, the height of each inner circular spring is greater than that of each outer circular spring, and a low-friction bushing is arranged in each elastic node;
the suspension damping device further comprises: and one end of the hydraulic damper is connected with the framework main body, and the other end of the hydraulic damper is connected with the axle box.
7. The inboard suspension direct drive radial bogie of claim 6, wherein the resilient node comprises: the elastic body comprises a base, two elastic bodies and two inner rings;
an inner cavity is formed in the base, the two inner rings are located in the center of the elastic node, and the two elastic bodies are located between the two inner rings and the inner cavity.
8. The inboard suspension direct drive radial bogie of any of claims 1-4, further comprising: a wheel set adjustment device located below the frame body;
the wheel set adjusting device comprises pull rods and fasteners, wherein the pull rods are respectively connected with the axle boxes at the opposite corners and fastened through the fasteners.
9. The inboard suspension direct drive radial bogie of any of claims 1-4, further comprising: the braking device is positioned in the middle of the framework main body;
the monitoring system comprises a vibration sensor, a load sensor, a temperature sensor and a speed sensor.
10. A truck, characterized in that it comprises at least: inboard suspension direct drive radial bogie as claimed in any of the previous claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010770745.1A CN114056367B (en) | 2020-08-04 | 2020-08-04 | Inside suspension direct-drive radial bogie and truck |
| PCT/CN2020/128410 WO2022027855A1 (en) | 2020-08-04 | 2020-11-12 | Inside-suspension direct-drive radial bogie, and truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010770745.1A CN114056367B (en) | 2020-08-04 | 2020-08-04 | Inside suspension direct-drive radial bogie and truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114056367A true CN114056367A (en) | 2022-02-18 |
| CN114056367B CN114056367B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010770745.1A Active CN114056367B (en) | 2020-08-04 | 2020-08-04 | Inside suspension direct-drive radial bogie and truck |
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| Country | Link |
|---|---|
| CN (1) | CN114056367B (en) |
| WO (1) | WO2022027855A1 (en) |
Cited By (1)
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|---|---|---|---|---|
| CN114701535A (en) * | 2022-04-29 | 2022-07-05 | 中车青岛四方机车车辆股份有限公司 | Bogie, vehicle body and rack-rail vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114715204A (en) * | 2022-05-19 | 2022-07-08 | 北京轨道交通技术装备集团有限公司 | Wheel pair driving system of light rail vehicle, bogie and light rail vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2022027855A1 (en) | 2022-02-10 |
| CN114056367B (en) | 2023-06-27 |
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