CN112356867A - Articulated framework bogie of rail vehicle - Google Patents

Articulated framework bogie of rail vehicle Download PDF

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Publication number
CN112356867A
CN112356867A CN202011427368.8A CN202011427368A CN112356867A CN 112356867 A CN112356867 A CN 112356867A CN 202011427368 A CN202011427368 A CN 202011427368A CN 112356867 A CN112356867 A CN 112356867A
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CN
China
Prior art keywords
bogie
axle
shaped side
rotating arm
side beams
Prior art date
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Pending
Application number
CN202011427368.8A
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Chinese (zh)
Inventor
周张义
劳良铖
刘书扬
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Southwest Jiaotong University
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Southwest Jiaotong University
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Filing date
Publication date
Application filed by Southwest Jiaotong University filed Critical Southwest Jiaotong University
Priority to CN202011427368.8A priority Critical patent/CN112356867A/en
Publication of CN112356867A publication Critical patent/CN112356867A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • B61F5/22—Guiding of the vehicle underframes with respect to the bogies
    • B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
    • 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
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention discloses a bogie of an articulated framework of a railway vehicle, wherein an axle box positioning device adopts rotating arms for positioning, the rotating arms are arranged externally, rubber nodes are arranged at the end parts of the articulated framework, the axle distance of the bogie can be effectively reduced, the curve trafficability of the bogie is enhanced, the integral mass of the bogie is reduced, the stress concentration of a lower cover plate of a rotating arm positioning seat and a side beam is avoided, the stress condition of the rotating arm positioning seat and the side beam is optimized, the articulated framework is supported at the inner side of a wheel pair, the length of an axle can be effectively shortened, the unsprung mass and the integral mass of the bogie are further reduced, the curve trafficability is improved, the torsional rigidity of the articulated framework is zero, the contradiction between the high-speed running stability and the curve trafficability of the traditional bogie can be fundamentally solved, an axle disc braking device close to wheels is arranged at the end parts of T-shaped side beams, the axle box braking device is favorable, the bogie is made more compact.

Description

Articulated framework bogie of rail vehicle
Technical Field
The invention relates to the technical field of bogies, in particular to a bogie of an articulated framework of a railway vehicle.
Background
The existing bogie using the rotating arm type axle box for positioning is characterized in that rubber nodes and rotating arms are arranged in the middle of side beams, and the rotating arms are longer, so that the axle distance of the bogie is restricted, so that the whole quality of the bogie cannot be reduced and the curve passing performance cannot be improved by reducing the axle distance.
The traditional integral framework type bogie has no rhombus deformation and high rhombus-resistant rigidity, can enhance the running stability of the bogie, namely strengthen the snaking stability of the bogie during high-speed running, and enables the running speed of the bogie to be higher, but the integral framework type bogie has high torsional rigidity, poor line adaptability, poor curve passing capability and higher requirement on a track, and the traditional integral framework type bogie cannot solve the contradiction between the running stability and the curve passing capability.
The bogie can be divided into an outer axlebox bogie and an inner axlebox bogie according to the difference of the axlebox arrangement at the outer side and the inner side of the wheelset. Compared with an outer axle box bogie, the inner axle box bogie has the advantages of small self weight, low unsprung mass, low wheel-rail dynamic acting force, strong curve passing capacity, low traction energy consumption, low noise and the like, and can better meet the requirements of economy, environmental protection and light weight of railway vehicles. At present, the high-speed bogie in China is an outer axle box bogie, and no high-speed inner axle box bogie which is actually operated exists.
According to the railway development condition of China, the bogie which is good in economy, small in energy consumption, high in speed, good in high-speed running stability, strong in line adaptability, good in curve trafficability, low in torsional rigidity and small in wheelbase is developed, and the development of the high-speed bogie of China is facilitated.
Disclosure of Invention
The invention aims to overcome the defects of high torsional rigidity, large unsprung mass, weak line adaptability, weak curve passing capacity, large wheelbase, poor framework bearing capacity and the like of a high-speed bogie in the prior art and provide the articulated framework bogie for the railway vehicle.
In order to achieve the purpose, the invention provides the following technical scheme:
a railway vehicle articulated frame bogie comprising:
a wheel set comprising a wheel;
the axle box positioning device is arranged on the inner side of the wheel pair and comprises a series of springs, rubber joints and a series of vertical shock absorbers, the axle box comprises a rotating arm, the rubber joints are arranged at the end part of the rotating arm, the rotating arm is externally arranged, namely the rubber joints are arranged at the end part of the hinged framework, and the series of springs are connected to the top of the axle box;
the articulated frame is arranged on the inner side of the wheel pair and comprises two T-shaped side beams and a longitudinal beam, the central axes of the two T-shaped side beams are superposed, a cylinder of one T-shaped side beam extends into the cylinder of the other T-shaped side beam, two bearings with certain transverse span are arranged between the two cylinders, free torsion around a transverse shaft between the two T-shaped side beams can be realized by adopting the two bearings, the torsional rigidity between the two T-shaped side beams is zero, the longitudinal beam is positioned in the center of the bogie and arranged on the cylinders of the T-shaped side beams, a rotating arm positioning seat is arranged at the end part of the T-shaped side beam, and the rubber joint is connected with the articulated frame through the rotating arm positioning seat, namely the rotating arm is arranged at the end part of the bogie.
And the shaft disc braking device is arranged on the hinged framework.
And the secondary suspension device comprises two secondary springs, and the secondary springs are arranged in the centers of the concave sections of the T-shaped side beams.
The invention relates to a railway vehicle hinged frame bogie, wherein an axle box positioning device is arranged at the inner side of a wheel pair, a rotating arm is arranged outside, a rubber node and a rotating arm positioning seat are arranged at the end part of the hinged frame, the axle distance of the bogie can be effectively reduced, the unsprung mass and the overall mass of the bogie can be reduced, the curve passing capacity of the bogie can be enhanced, the stress concentration of the rotating arm positioning seat and a lower cover plate of a side beam can be avoided, the stress condition of the rotating arm positioning seat and the side beam can be optimized, the hinged frame comprises two T-shaped side beams and a longitudinal beam, the hinged frame is supported at the inner side of the wheel pair, the axle length can be effectively shortened, the unsprung mass and the overall mass of the bogie can be further reduced, the curve passing performance can be improved, the mutual free point head torsional movement of the T-shaped side beams can be realized by, the load balancing capacity and the line adaptability of the bogie can be enhanced, the contradiction between the high-speed running stability and the curve trafficability of the traditional bogie is fundamentally solved, and the curve trafficability and the running stability of the bogie are further enhanced and the running speed of a vehicle is improved by matching the hinged framework with the rotating arm positioning device; the axle disc braking device is arranged at the end part of the bogie, so that the axle distance of the bogie can be further reduced, the space in the inner axle box bogie is fully utilized, the inner axle box bogie is more compact, and the space is more reasonable to use; the secondary suspension device is added, namely, the vertical and transverse performances of the bogie can be effectively improved by adopting the secondary suspension, the running speed of the bogie is increased, and the requirement of high-speed running of the bogie is met.
Preferably, the axle is a hollow axle, and the unsprung mass of the bogie can be further reduced.
Preferably, the series of springs comprises laminated rubber springs.
Preferably, the primary vertical damper is mounted to the pedestal sidewall.
The two ends of the T-shaped side beams are connected with the axle box positioning devices, each T-shaped side beam is provided with a cylinder which is transversely arranged, the cylinders are arranged in the middle of the T-shaped side beams and are of a T-shaped structure, two bearings with a certain transverse span are arranged between the two T-shaped side beams, the two T-shaped side beams can perform free point head torsional motion around a transverse shaft by using the two bearings, and the torsional rigidity between the two T-shaped side beams is zero.
The articulated framework is an integral framework without rhomboid deformation, but the two T-shaped side beams can be freely twisted, so that the load balancing capacity, the high-speed operation stability, the curve trafficability characteristic and the line adaptability of the bogie can be improved, and the contradiction between the snaking stability and the curve trafficability characteristic in the high-speed operation process of the traditional bogie is fundamentally solved. .
The invention realizes the free point head movement between the two T-shaped side beams around the transverse shaft by utilizing the characteristic that the inner ring and the outer ring of the bearing rotate freely, and realizes the integrity of the framework by utilizing the characteristic that the bearing can bear axial force and radial force.
Preferably, the longitudinal beam is arranged on a cylinder of the side beam of the hinged framework, is arranged in the center of the bogie, and comprises a horizontal plate, three vertical plates parallel to each other and an end plate, a traction pull rod is arranged on the horizontal plate, the traction pull rod is a single pull rod, the upper ends of the three vertical plates are connected with the horizontal plate, the lower ends of the three vertical plates are connected with the cylinder of the T-shaped side beam, and the outer surfaces of the vertical plates on the two sides are provided with transverse stoppers.
Preferably, the four sets of the axle disc braking devices are arranged at the end parts of the bogie, so that the axle distance of the bogie is reduced, the quality of the bogie is reduced, and the curve passing performance of the bogie is further improved.
Preferably, the longitudinal beam is installed on a cylinder of a side beam of the hinged framework and is arranged in the center of the bogie, the longitudinal beam is provided with a concave section, is of a fish belly type structure and comprises an upper cover plate and three vertical plates connected with the upper cover plate and the cylinder of the T-shaped side beam, the three vertical plates are parallel to each other, the longitudinal beam further comprises two end plates connected with the upper cover plate and a middle vertical plate, a traction pull rod is arranged on the concave inclined straight section of the longitudinal beam, the traction pull rod is a single pull rod, the shaft disc braking devices are arranged at two ends of the longitudinal beam, and transverse stopping blocks are arranged on vertical plates at two sides.
Preferably, the axle disc braking devices are arranged in six sets, wherein four sets close to wheels are arranged at the end part of the bogie, and the middle two sets are arranged at the end part of the longitudinal beam, so that the requirement of the bogie on higher speed can be met.
Preferably, the secondary spring adopts an air spring, the air spring has excellent performance, and the vertical and transverse performance of the bogie can be improved.
Preferably, a transverse shock absorber is arranged on the T-shaped side beam, an outward extending box-shaped beam protrudes from the outer side of the T-shaped side beam, and the outward extending box-shaped beam is of a box-shaped structure. And secondary vertical shock absorbers and anti-snaking shock absorbers are arranged on the overhanging box-shaped beam, the overhanging box-shaped beam deviates from the center of the T-shaped side beam by a certain longitudinal distance, so that a side rolling resistant torsion bar is conveniently arranged in the middle of the T-shaped side beam, and the side rolling resistant torsion bar can increase the side rolling resistant capacity of the inner axle box bogie during high-speed operation.
The anti-rolling torsion bar is arranged in the center of the cylinder of the T-shaped side beam, so that the anti-rolling torsion bar does not influence the free torsion of the two T-shaped side beams, and the bogie can be ensured to have excellent anti-rolling capability, line adaptability, curve trafficability and operation stability.
In summary, compared with the prior art, the invention has the beneficial effects that:
1. the bogie adopts an inner axle box arrangement mode, so that unsprung mass and hinged framework mass of the bogie are reduced, and the whole bogie can be reduced, so that the bogie has the advantages of low wheel-rail dynamic acting force, strong curve passing capacity, low traction energy consumption and low noise.
2. The rotating arms of the bogie axle box positioning device are arranged externally, namely rubber nodes are arranged at the end parts of the T-shaped side beams, so that the axle distance of the bogie is favorably reduced, the quality of a hinged framework and the bogie is further reduced, the curve trafficability of the bogie is improved, meanwhile, stress concentration of the rotating arm positioning seat and the lower cover plate of the side beams can be avoided, and the stress condition of the rotating arm positioning seat and the side beams is optimized.
3. The torsional rigidity of the bogie is zero, the two T-shaped side beams of the bogie can be completely and freely twisted around the transverse shaft, the mounted anti-rolling torsion bar does not influence the two T-shaped side beams to carry out free point-head twisting motion, the anti-rolling capability, the load balancing capability, the line adaptability and the operation stability of the bogie can be enhanced, the contradiction between the operation stability and the curve trafficability of the traditional bogie is fundamentally solved, and the curve trafficability and the operation stability of the bogie are further improved by matching with the arrangement mode of the inner axle box and the axle box positioning device with the external rotating arms.
4. The axle disc braking device is arranged at the end part of the bogie, which is favorable for further reducing the axle distance of the bogie and fully utilizing the space inside the inner axle box bogie, so that the bogie is more compact.
5. The secondary spring is added, so that the vertical and transverse performances of the bogie are further optimized, and the running stability of the bogie are improved.
Drawings
FIG. 1 is a schematic structural view of an articulated frame bogie for a railway vehicle according to embodiment 1;
FIG. 2 is a top view of an articulated frame bogie for a railway vehicle according to embodiment 1;
FIG. 3 is a partial enlarged view at A in FIG. 2 in embodiment 1;
FIG. 4 is a schematic structural view of an articulated frame in embodiment 1;
fig. 5 is a schematic structural view of a T-shaped side member in embodiment 1;
FIG. 6 is a schematic structural view of a longitudinal beam in embodiment 1;
fig. 7 is a schematic structural view of an axle box positioning device in embodiment 1;
FIG. 8 is a first schematic view showing the installation of the journal box locating device according to embodiment 1;
FIG. 9 is a second schematic view showing the installation of the axle box positioning device according to embodiment 1;
FIG. 10 is a schematic structural view of an articulated frame bogie for a railway vehicle according to embodiment 2;
FIG. 11 is a top plan view of an articulated frame truck for a railway vehicle according to embodiment 2;
FIG. 12 is a schematic structural view of an articulated framework in embodiment 2;
fig. 13 is a schematic structural view of a longitudinal beam in embodiment 2.
The labels in the figure are: 1-wheel, 21-T-shaped side beam, 22-longitudinal beam, 23-overhanging box beam, 24-rocker positioning seat, 25-bearing, 3-axle box, 31-axle, 32-axle disc, 41-series spring, 42-rubber node, 43-series vertical shock absorber, 5-series spring, 6-traction pull rod, 71-transverse stopper, 72-anti-snake motion shock absorber, 73-series vertical shock absorber, 74-anti-roll torsion bar, 75-series transverse shock absorber, 76-axle disc brake device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the above-described subject matter of the present invention is limited to the following embodiments, and any technique realized based on the present invention falls within the scope of the present invention.
Example 1
As shown in fig. 1-9, the present invention provides a railway vehicle articulated frame bogie comprising:
wheel sets comprising wheels 1 and axles 31;
the axle box positioning device is arranged on the inner side of the wheel pair and comprises a series of springs 41, rubber nodes 42 and a series of vertical shock absorbers 43, the axle box 3 comprises a rotating arm, the rubber nodes 42 are arranged at the end part of the rotating arm, the rotating arm is externally arranged, namely the rubber nodes 42 are arranged at the end part of a bogie, and the series of springs 41 are connected to the top part of the axle box 3;
the hinged framework is arranged on the inner side of the wheel pair and comprises two T-shaped side beams 21 and a longitudinal beam 22, the central axes of the two T-shaped side beams 21 are overlapped, a cylinder of one T-shaped side beam 21 extends into a cylinder of the other T-shaped side beam, two bearings 25 with a certain transverse span are arranged between the two cylinders, free rotation around a transverse axis between the two T-shaped side beams 21 can be realized by adopting the two bearings 25, and the torsional rigidity between the two T-shaped side beams 21 is zero; the longitudinal beam 22 is positioned in the center of the bogie and arranged on the cylinder of the T-shaped side beam 21, a rotating arm positioning seat 24 is arranged at the end part of the T-shaped side beam 21, and the rubber node 42 is connected with an articulated framework through the rotating arm positioning seat 24, namely the rotating arm is arranged at the end part of the bogie;
the brake device comprises four sets of axle disc brake devices 76, wherein the axle disc brake devices 76 close to the wheels 1 are hung at the end parts of the T-shaped side beams 21, namely the end parts of the bogies.
The secondary suspension device comprises two secondary springs 5, and the secondary springs 5 are arranged in the center of the concave section of the T-shaped side beam 21.
Specifically, the axle 31 is a hollow axle, so that the unsprung mass of the bogie can be further reduced; the primary spring 41 comprises a laminated rubber spring, and provides vertical positioning for the axle box positioning device; the vertical shock absorbers 43 are arranged on the side wall of the axle box 3 and provide shock absorption and damping for the axle box positioning device; the two ends of the T-shaped side beam 21 are connected with the axle box positioning devices, the T-shaped side beam 21 is provided with a cylinder which is transversely arranged, the cylinder is arranged in the middle of the T-shaped side beam 21 and is of a T-shaped structure, two bearings 25 with a certain transverse span are arranged between the two T-shaped side beams 21, the two T-shaped side beams 21 can perform free point head torsional movement around a transverse shaft by using the bearings 25, and the torsional rigidity between the two T-shaped side beams 21 is zero. The inner ring and the outer ring of the bearing 25 can rotate freely, so that free point head movement between the two T-shaped side beams 21 around the transverse shaft is realized, and meanwhile, the bearing 25 can bear axial force and radial force, so that the integrity of the hinged framework can be realized.
Two sets of axle discs 32 are arranged on each axle 31, two corresponding sets of axle disc braking devices 76 are arranged on the hinged framework, and the axle disc braking devices 76 close to the wheels 1 are arranged at the end parts of the bogie, so that the axle distance of the bogie is favorably reduced, the quality of the bogie is reduced, and the curve passing performance of the bogie is improved.
The longitudinal beam 22 comprises a horizontal plate, three vertical plates parallel to each other and an end plate, the horizontal plate is provided with a traction pull rod 6, the traction pull rod 6 adopts a single pull rod, the structure is simple, the occupied space is small, and the characteristics of an inner axle box bogie are met, the upper ends of the three vertical plates are connected with the horizontal plate, the lower ends of the three vertical plates are connected with a cylinder of the T-shaped side beam 21, the outer surfaces of the vertical plates on the two sides are provided with transverse stoppers 71, and the transverse displacement of the bogie relative to the vehicle body can be limited.
The secondary spring 5 adopts an air spring which has excellent performance and can increase the vertical and transverse performance of the bogie.
The T-shaped side beam 21 is provided with a transverse shock absorber 75, an overhanging box-shaped beam 23 protrudes out of the T-shaped side beam 21, a secondary vertical shock absorber 73 and an anti-snake shock absorber 72 are arranged on the overhanging box-shaped beam 23, the overhanging box-shaped beam 23 deviates from the center of the T-shaped side beam 21 by a certain longitudinal distance, so that a side rolling resistant torsion bar 74 is conveniently arranged in the middle of the T-shaped side beam 21, and the side rolling resistant torsion bar 74 can increase the side rolling resistant capacity of the inner axle box bogie during high-speed operation.
The anti-rolling torsion bar 74 is arranged in the center of the T-shaped side beam 21, so that the anti-rolling torsion bar 74 does not influence the free point-head movement of the two T-shaped side beams 21, and the bogie can be ensured to have excellent anti-rolling capability, line adaptability, curve trafficability and operation stability.
According to the railway vehicle articulated framework bogie, the arrangement mode of the inner axle boxes is adopted, so that the unsprung mass and the articulated framework mass of the bogie are reduced, the mass of the whole bogie can be reduced, and the bogie is low in wheel-rail dynamic acting force, strong in curve passing capacity, low in traction energy consumption and low in noise; the rocker arm of the axle box positioning device adopts an external mode, namely rubber nodes are arranged at the end parts of the T-shaped side beams, so that the axle distance of the bogie is reduced, the quality of a hinged framework and the bogie is reduced, the curve trafficability of the bogie is improved, the overall quality of the bogie is reduced, the stress concentration of a rocker arm positioning seat and a lower cover plate of the side beams is avoided, and the stress condition of the rocker arm positioning seat and the side beams is optimized; the torsional rigidity of the bogie is zero, namely two T-shaped side beams of the bogie can be completely and freely twisted around a transverse shaft, the mounted anti-rolling torsion bar does not influence the two T-shaped side beams to carry out free point motion, the anti-rolling capability and the load sharing capability of the bogie are enhanced, the line adaptability and the operation stability are enhanced, the contradiction between the operation stability and the curve trafficability of the traditional bogie is fundamentally solved, and the curve trafficability and the operation speed of the bogie are further increased by matching with the axle box positioning device with the external rotating arms; the axle disc braking device is arranged at the end part of the bogie, so that the distance between the axles of the bogie can be further reduced, the space in the inner axle box bogie can be fully utilized, and the bogie is more compact; the secondary spring adopts an air spring, and is matched with the rotating arm type axle box positioning device and the hinged frame, so that the vertical and transverse performances of the bogie are further optimized, and the running speed, curve passing capacity and high-speed running stability of the bogie can be increased.
Example 2
The structure of the railway vehicle articulated frame bogie described in the embodiment is substantially the same as that of the embodiment 1, and the difference is that:
as shown in fig. 10-12, three sets of axle disks 32 are arranged on each axle 31, and three corresponding sets of axle disk brake devices 76 are arranged on the articulated frame, wherein two sets of axle disk brake devices 76 close to the wheels 1 are hung at the end part of the bogie, and the middle set of axle disk brake device 76 is hung at the end part of the longitudinal beam 22, so that the space inside the bogie is fully utilized, and the bogie is more compact.
The longitudinal beam 22 is provided with a concave section, is of a fish belly structure and comprises an upper cover plate and three vertical plates connected with the upper cover plate and a T-shaped side beam 21 cylinder, the three vertical plates are parallel to each other, the longitudinal beam also comprises two end plates connected with the upper cover plate and a middle vertical plate, the longitudinal beam 22 is provided with a traction pull rod 6 at the concave section, shaft disc braking devices 76 are arranged at two ends, transverse stopping devices 71 are arranged on the outer surfaces of the vertical plates at two sides, the longitudinal beam 22 is provided with the concave section, so that the stress of the longitudinal beam is facilitated, and meanwhile, a mounting seat can be provided for part of devices.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. A railway vehicle articulated frame bogie comprising:
a wheel set comprising a wheel (1) and an axle (31);
the axle box positioning device is arranged on the inner side of the wheel pair and comprises an axle box (3), a series of springs (41), rubber joints (42) and a series of vertical shock absorbers (43), wherein the axle box (3) comprises a rotating arm, the rubber joints (42) are arranged at the end part of the rotating arm, the rotating arm is externally arranged, namely the rubber joints (42) are arranged at the end part of an articulated framework, and the series of springs (41) are connected to the top of the axle box (3);
the articulated frame is arranged on the inner side of the wheel pair and comprises two T-shaped side beams (21) and a longitudinal beam (22), the central axes of the two T-shaped side beams (21) are overlapped, a cylinder of one T-shaped side beam (21) extends into a cylinder of the other T-shaped side beam (21), two bearings (25) with a certain transverse span are arranged between the two cylinders, free rotation around a transverse shaft between the two T-shaped side beams (21) can be realized by adopting the two bearings (25), the torsional rigidity between the two T-shaped side beams (21) is zero, a rotating arm positioning seat (24) is arranged at the end part of the T-shaped side beam (21), and the rubber joint (42) is connected with the articulated frame through the rotating arm positioning seat (24).
2. The bogie according to claim 1, wherein said longitudinal beam (22) comprises a horizontal plate, three vertical plates parallel to each other and an end plate, said horizontal plate having a traction tie (6) disposed thereon, said traction tie (6) being a single tie, said three vertical plates being connected at their upper ends to the horizontal plate and at their lower ends to the cylinder of the T-shaped side beam (21), said vertical plates on both sides having lateral stops (71) disposed on their outer surfaces.
3. The bogie according to claim 1, wherein said longitudinal beam (22) has a concave section, is of a fish-belly configuration, comprises an upper cover plate, three vertical plates connected to the upper cover plate and to the cylinder of the T-side beam (21), said three vertical plates being parallel to each other, and further comprises two end plates connected to the upper cover plate and to the middle vertical plate, said longitudinal beam (22) having a drag link (6) arranged in a concave inclined straight section, said drag link (6) being a single link, said axle disc brake (76) being arranged at both ends of said longitudinal beam (22), and lateral stops (71) being arranged on the outer surfaces of the vertical plates on both sides.
4. A bogie as claimed in claim 2, characterised in that two sets of axle discs (32) are provided on each axle shaft (31) and two corresponding sets of axle disc brakes (76) are provided on the articulated frame, the axle disc brakes (76) being suspended from the ends of the T-shaped side beams (21), i.e. the bogie ends.
5. A bogie according to claim 3 wherein three sets of axle discs (32) are provided on each axle (31) and three corresponding sets of axle disc brakes (76) are provided on the articulated frame, wherein two sets of axle disc brakes (76) adjacent the wheels are suspended at the ends of the bogie and the intermediate set of axle disc brakes (76) is suspended at the ends of the longitudinal beams (22).
CN202011427368.8A 2020-12-07 2020-12-07 Articulated framework bogie of rail vehicle Pending CN112356867A (en)

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Application Number Priority Date Filing Date Title
CN202011427368.8A CN112356867A (en) 2020-12-07 2020-12-07 Articulated framework bogie of rail vehicle

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Application Number Priority Date Filing Date Title
CN202011427368.8A CN112356867A (en) 2020-12-07 2020-12-07 Articulated framework bogie of rail vehicle

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CN112356867A true CN112356867A (en) 2021-02-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114274999A (en) * 2022-01-04 2022-04-05 西南交通大学 High-speed inner axle box bogie of railway wagon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114274999A (en) * 2022-01-04 2022-04-05 西南交通大学 High-speed inner axle box bogie of railway wagon

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