CN109398400B

CN109398400B - Automatic centering double-shaft bogie system for new wheel-rail train

Info

Publication number: CN109398400B
Application number: CN201811123350.1A
Authority: CN
Inventors: 钟志华; 周军
Original assignee: Dexian Automotive Technology Shanghai Co ltd; Tongji University
Current assignee: Dexian Automotive Technology Shanghai Co ltd; Tongji University
Priority date: 2018-09-26
Filing date: 2018-09-26
Publication date: 2020-08-25
Anticipated expiration: 2038-09-26
Also published as: CN109398400A

Abstract

The invention relates to an automatic centering double-shaft bogie system for a new wheel-rail train in the technical field of rail transit, which comprises a bogie main body arranged on a carriage and a pair of rail components matched with the bogie main body, wherein the bogie main body comprises a pair of bogie modules, a connecting seat and a middle pivot; the pair of bogie modules are arranged along the center line of the carriage, the connecting seat is horizontally and rotatably arranged at the bottom side of the carriage through a central pivot, and the central pivot is positioned at the central position of the connecting seat and on the center line of the carriage; the central position of the bogie module is provided with a rotating shaft, the whole bogie module is horizontally and rotatably arranged at the end part of the connecting seat and the bottom side of the carriage through the rotating shaft, and the rotating shafts of the two bogie modules are symmetrically arranged by taking the central pivot as a standard. The influence of the deflection of the carriage on the wheel train of the bogie module is avoided, so that the abrasion between the wheel rails is reduced, and the matching state of the wheel rails is improved.

Description

Automatic centering double-shaft bogie system for new wheel-rail train

Technical Field

The invention relates to the technical field of rail transit, in particular to a bogie system.

Background

The bearing and guiding functions of the traditional wheel-rail train are coupled and are completed by a system (wheel-rail system for short) consisting of wheels and rails. When the speed reaches more than 400km/h, the dynamic performance of wheel-rail contact is sharply reduced, and the requirement of high speed on a wheel-rail system is maintained to be strict, so that the safety and the reliability are greatly reduced, and the corresponding economic performance is also greatly reduced.

And the rigidity requirement for the carriage among the prior art is very high, because there is certain distance between two adjacent bogies, if the rigidity of carriage is not enough, produce great amount of deflection very easily, can lead to the direction of advance of direction wheelset plane and the direction wheelset of bogie to have great contained angle, aggravate the wearing and tearing between direction wheelset and the track.

Disclosure of Invention

The invention aims to provide an automatic centering double-shaft bogie system for a new wheel rail train, which avoids the influence of the deflection of a carriage on a wheel train of a bogie module, so as to reduce the abrasion between wheel rails and improve the matching state of the wheel rails.

The purpose of the invention is realized as follows: an automatic centering double-shaft bogie system facing a new wheel-rail train comprises a bogie main body arranged on a carriage and a pair of track assemblies matched with the bogie main body, wherein the bogie main body comprises a pair of bogie modules, a connecting seat and a middle pivot; the bogie modules are arranged along the center line of the carriage, the connecting seat is arranged at the bottom side of the carriage through a central shaft, and the central shaft is positioned at the center of the connecting seat and on the center line of the carriage; the center position of the bogie module is provided with a rotating shaft, the whole bogie module is horizontally and rotatably arranged at the end part of the connecting seat and the bottom side of the carriage through the rotating shaft, and the rotating shafts of the two bogie modules are symmetrically arranged by taking the central pivot as a standard.

Further, the bogie module includes bearing wheel axle bed, bearing wheel, horizontal shock attenuation part, leading wheel, the bearing wheel is equipped with a pair ofly and arranges respectively in both ends about the bearing wheel axle bed, and two bearing wheels are respectively with two track components roll cooperation, the leading wheel is equipped with two sets ofly and every group has two at least, and two sets of leading wheels use the carriage central line to arrange and connect on horizontal shock attenuation part for accurate bilateral symmetry, and two sets of leading wheels are respectively with two track components roll cooperation, horizontal shock attenuation part can carry out elastic deformation and order about two sets of leading wheels respectively pressure conflict two track components with the direction of perpendicular to carriage central line, the pivot is in the central point of bearing wheel axle bed and puts.

Further, each track assembly comprises a guide track and a bearing track, the rotating axis of the guide wheel is vertically arranged and rolls on the guide track, and the rotating axis of the bearing wheel is horizontally arranged and rolls on the bearing track.

Further, the guide wheel is made of a light-weight high-strength material.

Further, the bearing wheel is made of a light-weight high-strength material.

Further, the contact surface of the guide rail is vertically arranged, and the contact surface of the bearing rail is horizontally arranged.

Further, horizontal shock attenuation part comprises scissors fork link mechanism, spring damping subassembly, scissors fork link mechanism can stretch out and draw back with the direction of perpendicular to carriage central line, scissors fork link mechanism and bearing wheel axle bed form the vice perpendicular to carriage central line of slip and be connected and this slip pair, scissors fork link mechanism has a center hinge point and is in on the axis of pivot, scissors fork link mechanism connects on bearing wheel axle bed through center hinge point horizontal rotation, spring damping subassembly combines together with scissors fork link mechanism so that scissors fork link mechanism can be to both sides tensioning, the leading wheel is installed on scissors fork link mechanism.

The invention has the beneficial effects that: the influence of the deflection of the carriage on the plane of the guide wheel of the bogie module is avoided, so that the condition of abrasion between wheel rails is avoided, the requirement on the rigidity of the carriage is reduced, and the lightweight design of the carriage is facilitated; and the guide wheel and the bearing wheel are made of light high-strength materials so as to adapt to the centrifugal force during high-speed rotation, thereby improving the matching relationship of the wheel and the rail.

Drawings

FIG. 1 is a schematic diagram of the system layout of the present invention.

FIG. 2 is a schematic view of the relationship between the wheel and the rail according to the present invention.

Fig. 3 is a schematic diagram of the relative positions of the connecting seat and the carriage.

In the figure, 1 bogie module, 101 bearing wheel axle seat, 102 bearing wheel, 103 transverse damping component, 103a spring damping component, 103b scissor fork link mechanism, 104 guide wheel, 105 rotating shaft, 2 connecting seat, 3 middle pivot, 4 guide track, 5 bearing track and 6 carriages.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

Referring to fig. 1 and 3, an automatic centering double-axle bogie system for a new wheel-rail train comprises a bogie body mounted on a carriage 6, and a pair of track assemblies matched with the bogie body, wherein the bogie body comprises a pair of bogie modules 1, a connecting seat 2 and a central axle 3.

A pair of bogie modules 1 are arranged along the center line of a carriage 6, a connecting base 2 is arranged at the bottom side of the carriage 6 through a central pivot 3, and the central pivot 3 is arranged at the central position of the connecting base 2 and on the center line of the carriage.

The center of the bogie module 1 is provided with a rotating shaft 105, the whole bogie module 1 is horizontally and rotatably installed at the end of the connecting seat 2 and the bottom side of the carriage 6 through the rotating shaft 105, and the rotating shafts 105 of the two bogie modules 1 are symmetrically arranged by taking the central shaft 3 as a quasi-symmetry.

Above-mentioned bogie module 1 includes bearing wheel axle bed 101, bearing wheel 102, horizontal shock attenuation part 103, leading wheel 104, bearing wheel 102 is equipped with a pair ofly and arranges both ends about bearing wheel axle bed 101 respectively, two bearing wheels 102 respectively with two track components roll cooperation, leading wheel 104 is equipped with two sets ofly, every group is respectively two, two sets of leading wheel 104 use the carriage central line as accurate bilateral symmetry to arrange and connect on horizontal shock attenuation part 103, two sets of leading wheel 104 respectively with two track components roll cooperation, horizontal shock attenuation part 103 can carry out elastic deformation and order about two sets of leading wheel 104 respectively two track components of pressure conflict with the direction of perpendicular to carriage central line, pivot 105 is in the central point of bearing wheel axle bed 101 and puts.

As shown in fig. 2, each rail assembly includes a guide rail 4 and a bearing rail 5, the rotation axis of the guide wheel 104 is vertically disposed and rolls on the guide rail 4, the rotation axis of the bearing wheel 102 is horizontally disposed and rolls on the bearing rail 5, the contact surface of the guide rail 4 is vertically disposed, and the contact surface of the bearing rail 5 is horizontally disposed, which is equivalent to the horizontal disposition of the guide wheel 104 and the vertical disposition of the bearing wheel 102.

When the train operates, because carriage 6 span is big, carriage 6 of lightweight design can have certain flexure phenomenon, especially between two adjacent bogie modules 1, such flexure effect is very obvious, connecting seat 2's effect has just been reflected this moment, carriage 6 presses on connecting seat 2, as long as strengthen the structural strength of connecting seat 2 itself when the preparation, in order to promote connecting seat 2's compressive property, because connecting seat 2 has undertaken the ballast that connecting seat 2 flexure produced, can make bearing wheel axle seat 101 bearing alleviate and can not produce the flexure, correspondingly, leading wheel 104 will be in the horizontality all the time, can roll on guide rail 4 very steadily.

The guide wheel 104 is made of a light high-strength material, the bearing wheel 102 is made of a light high-strength material, the guide wheel 104 and the bearing wheel 102 are preferably made of a carbon fiber material so as to adapt to a centrifugal force during high-speed rotation, and the guide wheel 104 and the bearing wheel 102 are lightened in weight, so that the weight of the bogie module 1 can be reduced, the lightweight design is met, and the rotation response performance of the bogie module 1 can be improved. The guide wheels 104 and the bearing wheels 102 are arranged separately, so that the train has good stability when running at high speed.

As shown in fig. 1, the lateral damping member 103 includes a scissors fork linkage 103b and a spring damper assembly 103a, the scissors fork linkage 103b can extend and contract in a direction perpendicular to the center line of the carriage, the scissors fork linkage 103b forms a sliding pair connection with the bearing axle seat 101 and the sliding pair is perpendicular to the center line of the carriage, the scissors fork linkage 103b has a center hinge point and is located on the axis of the rotating shaft 105, the scissors fork linkage 103b is horizontally and rotatably connected to the bearing axle seat 101 through the center hinge point, the spring damper assembly 103a is combined with the scissors fork linkage 103b to enable the scissors fork linkage 103b to be tensioned to both sides, and the guide wheel 104 is mounted on the scissors fork linkage 103 b.

Two crossed hinge points of the scissors fork connecting rod mechanism 103b which are symmetrically arranged by taking the center hinge point thereof as a reference form sliding pair connection with the bearing wheel axle seat 101, and two ends of the spring damping component 103a are respectively connected with two hinge points of the scissors fork connecting rod mechanism 103b which can move relatively. When turning or two guide rails 4 interval produce the deviation, two sets of leading wheels 104 can make scissors fork link mechanism 103b produce the flexible of perpendicular to carriage central line because of the atress changes, and spring damping subassembly 103a can produce the adaptability and warp, and the elasticity that produces can order about scissors fork link mechanism 103b and can tension to both sides, orders about two sets of leading wheels 104 respectively the pressure contradicts two guide rails 4 for the stress state of two sets of leading wheels 104 is in dynamic balance state rapidly.

The spring damping assembly 103a may be composed of a spring and a damping shock absorber, which may be separately or jointly disposed.

While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a towards automatic centering biax bogie system of new round of rail train, is including installing the bogie main part on carriage (6) to and a pair of track subassembly with bogie main part complex, its characterized in that: the bogie body comprises a pair of bogie modules (1), a connecting seat (2) and a central shaft (3);

the pair of bogie modules (1) are arranged along the center line of a carriage (6), the connecting seat (2) is arranged at the bottom side of the carriage (6) through a middle pivot (3), and the middle pivot (3) is positioned at the center position of the connecting seat (2) and is positioned on the center line of the carriage;

a rotating shaft (105) is arranged at the center of the bogie module (1), the whole bogie module (1) is horizontally and rotatably arranged at the end part of the connecting seat (2) and the bottom side of the carriage (6) through the rotating shaft (105), and the rotating shafts (105) of the two bogie modules (1) are symmetrically arranged by taking the middle pivot (3) as a reference;

the bogie module (1) comprises a bearing wheel axle seat (101), a bearing wheel (102), a transverse damping component (103) and a guide wheel (104), the bearing wheels (102) are provided with a pair and are respectively arranged at the left end and the right end of the bearing wheel axle seat (101), the two bearing wheels (102) are respectively matched with the two track components in a rolling way, two groups of guide wheels (104) are arranged, each group is at least two, the two groups of guide wheels (104) are symmetrically arranged left and right by taking the central line of the carriage as the standard and are connected on the transverse damping component (103), the two groups of guide wheels (104) are respectively matched with the two track assemblies in a rolling way, the transverse damping component (103) can elastically deform in a direction perpendicular to the center line of the carriage and drives two groups of guide wheels (104) to respectively press and abut against the two track assemblies, and the rotating shaft (105) is positioned at the center of the bearing wheel shaft seat (101);

the transverse shock absorption component (103) consists of a scissor fork link mechanism (103b) and a spring damping component (103a), the scissor fork link mechanism (103b) can be extended and contracted in a direction perpendicular to the center line of the carriage, the scissor fork link mechanism (103b) and the bearing axle seat (101) form a sliding pair connection, the sliding pair is vertical to the center line of the carriage, the scissors fork connecting rod mechanism (103b) is provided with a central hinge point and is positioned on the axis of the rotating shaft (105), the scissor fork connecting rod mechanism (103b) is horizontally and rotatably connected on the bearing wheel axle seat (101) through a central hinge point, the spring damping assembly (103a) is combined with the scissors fork linkage (103b) to enable the scissors fork linkage (103b) to be tensioned towards two sides, and the guide wheel (104) is installed on the scissors fork linkage (103 b);

each track assembly comprises a guide track (4) and a bearing track (5), the rotating axis of the guide wheel (104) is vertically arranged and rolls on the guide track (4), and the rotating axis of the bearing wheel (102) is horizontally arranged and rolls on the bearing track (5);

the spring damping assembly (103a) is comprised of a spring and a damping shock absorber, which are provided separately or in combination with each other.

2. The automatic centering double-axle bogie system facing the new-wheel-rail train as claimed in claim 1, wherein: the guide wheel (104) is made of a light-weight high-strength material.

3. The automatic centering double-axle bogie system facing the new-wheel-rail train as claimed in claim 1, wherein: the bearing wheel (102) is made of light high-strength materials.

4. The automatic centering double-axle bogie system facing the new-wheel-rail train as claimed in claim 1, wherein: the contact surface of the guide rail (4) is vertically arranged, and the contact surface of the bearing rail (5) is horizontally arranged.