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

Abstract

The invention relates to an automatic centering double-axle bogie system for new wheel rail trains in the technical field of rail transportation, comprising a bogie main body mounted on a carriage, and a pair of rail assemblies matched with the bogie main body. It includes a pair of bogie modules, a connecting seat and a central pivot; a pair of bogie modules are arranged along the center line of the carriage, the connecting seat is horizontally rotated and installed on the bottom side of the carriage through the central pivot, and the central pivot is at the center of the connecting seat and at the bottom of the carriage. On the center line of the carriage; the central position of the bogie module is provided with a rotating shaft, and the whole bogie module is horizontally installed on the end 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 arranged symmetrically with respect to the central pivot axis . To avoid the impact of the deflection of the carriage on the wheel train of the bogie module, to reduce the wear between the wheel and the rail, and to improve the state of the wheel and rail fit.

Description

An automatic centering dual-axle bogie system for new wheel-rail trains

technical field

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

Background technique

The load-bearing and guiding functions of traditional wheel-rail trains are coupled, and are completed by a system composed of wheels and rails (referred to as wheel-rail system). When the speed reaches 400km/h or more, the dynamic performance of the wheel-rail contact drops sharply, and at the same time, maintaining high speed requires strict requirements for the wheel-rail system, resulting in a significant drop in safety and reliability, and the corresponding economic performance is also greatly reduced.

Moreover, in the prior art, the rigidity of the carriage is very high, because there is a certain distance between two adjacent bogies. If the rigidity of the carriage is not enough, it is easy to produce a large deflection, which will lead to the guide wheel set plane of the bogie. There is a large angle with the forward direction of the guide wheel set, which increases the wear between the guide wheel set and the track.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automatic centering dual-axle bogie system for new wheel-rail trains, which can avoid the impact of the deflection of the carriage on the wheel train of the bogie module, so as to reduce the wear between the wheel and rail and improve the wheel-rail fit. state.

The object of the present invention is achieved as follows: an automatic centering double-axle bogie system for new wheel-rail trains, comprising a bogie main body mounted on a carriage, and a pair of track assemblies matched with the bogie main body, the The main body of the bogie includes a pair of bogie modules, as well as a connecting seat and a central pivot shaft; a pair of bogie modules are arranged along the center line of the carriage, the connecting seat is installed on the bottom side of the carriage through the central pivot shaft, and the central shaft is located at the bottom of the carriage. The center position is on the center line of the car; the center position of the bogie module is provided with a rotating shaft, and the entire bogie module is horizontally installed on the end of the connecting seat and the bottom side of the car through the rotating shaft, and the two bogie modules are The rotating shafts are arranged symmetrically with respect to the central axis.

Further, the bogie module includes a bearing wheel axle seat, a bearing wheel, a transverse damping member, and a guide wheel, the bearing wheels are provided with a pair and are respectively arranged at the left and right ends of the bearing wheel axle seat, and the two bearing wheels are respectively connected with the two The track assembly is rolling and fitted, the guide wheels are provided with two groups and each group has at least two, the two groups of guide wheels are arranged symmetrically on the left and right based on the center line of the carriage and are connected to the transverse damping member, and the two groups of guide wheels are respectively connected with the two groups. The two rail assemblies are rolling fit, the transverse damping member can elastically deform in a direction perpendicular to the centerline of the carriage, and drive the two sets of guide wheels to press against the two rail assemblies respectively, and the rotating shaft is at the center of the bearing wheel axle seat.

Further, each track assembly includes a guide track and a load-bearing track, the rotation axis of the guide wheel is arranged vertically and rolls on the guide track, and the rotation axis of the load-bearing wheel is arranged horizontally and rolls on the load-bearing track.

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

Further, the bearing wheels are made of light-weight and high-strength materials.

Further, the contact surfaces of the guide rails are arranged vertically, and the contact surfaces of the load-bearing rails are arranged horizontally.

Further, the transverse damping component is composed of a scissor fork linkage mechanism and a spring damping assembly, the scissors fork linkage mechanism can be extended and retracted in a direction perpendicular to the center line of the carriage, and the scissors fork linkage mechanism is connected to the load-bearing axle. The seat forms a sliding pair connection and the sliding pair is perpendicular to the center line of the carriage. The scissors fork linkage mechanism has a central hinge point and is located on the axis of the rotating shaft. On the bearing wheel axle seat, the spring damping component is combined with the scissors fork link mechanism so that the scissors fork link mechanism can be tensioned on both sides, and the guide wheel is installed on the scissor fork link mechanism.

The beneficial effects of the present invention are: avoid the deflection of the carriage from affecting the guide wheel plane of the bogie module, thereby avoiding the wear between the wheels and the rails, reducing the requirement for the stiffness of the carriage, and facilitating the lightweight design of the carriage; Wheels and load-bearing wheels are made of lightweight and high-strength materials to adapt to centrifugal force during high-speed rotation, thereby improving the wheel-rail matching relationship.

Description of drawings

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

Figure 2 is a schematic diagram of the wheel-rail relationship in the present invention.

FIG. 3 is a schematic diagram of the relative position 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 assembly, 103b scissor fork linkage, 104 guide wheel, 105 rotating shaft, 2 connecting seat, 3 central pivot, 4 guide rails, 5 load-bearing rails, 6 carriages.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

With reference to Figures 1 and 3, an automatic centering dual-axle bogie system for new wheel-rail trains includes a bogie main body mounted on the carriage 6, and a pair of track assemblies matched with the bogie main body, the bogie. The main body includes a pair of bogie modules 1 , a connecting seat 2 and a central pivot shaft 3 .

A pair of bogie modules 1 are arranged along the centerline of the carriage 6, and the connecting base 2 is mounted on the bottom side of the carriage 6 through a central shaft 3, which is located at the center of the connecting base 2 and on the centerline of the carriage.

The center of the bogie module 1 is provided with a rotating shaft 105. The entire bogie module 1 is horizontally rotatably mounted on the end of the connecting seat 2 and the bottom side of the carriage 6 through the rotating shaft 105. 3 is quasi-symmetrically arranged.

The above-mentioned bogie module 1 includes a bearing wheel axle seat 101, a bearing wheel 102, a lateral damping member 103, and a guide wheel 104. The bearing wheel 102 is provided with a pair and is respectively arranged at the left and right ends of the bearing wheel axle seat 101. The two track assemblies are in rolling fit. There are two sets of guide wheels 104, two in each set. The two sets of guide wheels 104 are arranged symmetrically on the left and right of the center line of the carriage and are connected to the transverse damping member 103. The two sets of guide wheels 104 The transverse damping member 103 can be elastically deformed in the direction perpendicular to the center line of the carriage and drive the two sets of guide wheels 104 to press against the two rail assemblies respectively, and the rotating shaft 105 is located in the center of the bearing wheel axle seat 101 Location.

As shown in FIG. 2 , each track assembly includes a guide track 4 and a load-bearing track 5 . The rotation axis of the guide wheel 104 is vertically arranged and rolls on the guide track 4 , and the rotation axis of the bearing wheel 102 is horizontally arranged on the load-bearing track 5 . When rolling up, the contact surface of the guide rail 4 is set vertically, and the contact surface of the load-bearing rail 5 is set horizontally, which is equivalent to the horizontal setting of the guide wheel 104 and the vertical setting of the load-bearing wheel 102 .

When the train is running, due to the large span of the carriage 6, the lightweight designed carriage 6 will have a certain deflection phenomenon, especially between the two adjacent bogie modules 1. Such deflection is very obvious. At this time, the connecting seat The function of 2 is reflected. The carriage 6 is pressed on the connecting seat 2. As long as the structural strength of the connecting seat 2 itself is strengthened during production, the compressive performance of the connecting seat 2 can be improved. The ballast generated by the buckling can reduce the load on the bearing wheel seat 101 without deflection, and accordingly, the guide wheel 104 is always in a horizontal state and can roll on the guide rail 4 very smoothly.

The above-mentioned guide wheel 104 is made of light-weight and high-strength material, and the bearing wheel 102 is made of light-weight and high-strength material. 104. The weight of the load-bearing wheel 102 is reduced, which can reduce the weight of the bogie module 1, satisfies the lightweight design, and can improve the rotational response performance of the bogie module 1. The guide wheels 104 and the load-bearing wheels 102 are arranged separately, so that the train has good stability when running at high speed.

As shown in FIG. 1 , the above-mentioned transverse damping member 103 is composed of a scissors fork linkage mechanism 103b and a spring damping assembly 103a. The scissors fork linkage mechanism 103b can expand and contract in a direction perpendicular to the center line of the carriage. The scissors fork linkage mechanism 103b It forms a sliding pair connection with the bearing wheel axle seat 101 and the sliding pair is perpendicular to the center line of the carriage. The scissors fork linkage mechanism 103b has a central hinge point and is located on the axis of the rotating shaft 105. The scissors fork linkage mechanism 103b rotates horizontally through the central hinge point. The spring damping assembly 103a is combined with the scissors fork linkage mechanism 103b so that the scissors fork linkage mechanism 103b can be tensioned on both sides, and the guide wheel 104 is installed on the scissors fork linkage mechanism 103b.

Wherein, the two cross hinge points of the scissors fork linkage mechanism 103b, which are quasi-symmetrically arranged with their central hinge points, form a sliding pair connection with the bearing wheel axle seat 101, and the two ends of the spring damping assembly 103a are respectively connected to the two ends of the scissors fork linkage mechanism 103b. a relatively movable hinge point. When turning or the distance between the two guide rails 4 is deviated, the two sets of guide wheels 104 will cause the scissor fork link mechanism 103b to expand and contract perpendicular to the centerline of the carriage due to the change in force, and the spring damping assembly 103a will be adaptively deformed. The generated elastic force can drive the scissors fork link mechanism 103b to be tensioned on both sides, and drive the two sets of guide wheels 104 to press against the two guide rails 4 respectively, so that the force state of the two sets of guide wheels 104 is rapidly in a dynamic balance state.

The above-mentioned spring damping assembly 103a may be composed of a spring and a damping shock absorber, and the spring and the damping shock absorber may be provided separately or in combination.

The above are the preferred embodiments of the present invention, and those of ordinary skill in the art can also carry out various transformations or improvements on this basis. Without departing from the general concept of the present invention, these transformations or improvements should belong to the claimed protection of the present invention. within the range.

Claims (4)

1. An automatic centering dual-axle bogie system for new wheel-rail trains, comprising a bogie main body installed on a carriage (6), and a pair of track assemblies matched with the bogie main body, characterized in that: the described The bogie main body includes a pair of bogie modules (1), a connecting seat (2), and a central pivot shaft (3); A pair of bogie modules (1) are arranged along the center line of the carriage (6), the connecting seat (2) is mounted on the bottom side of the carriage (6) through a central shaft (3), and the central shaft (3) is located in the connecting seat (2) the center position and on the center line of the carriage; A rotating shaft (105) is provided at the center of the bogie module (1), and the entirety of the bogie module (1) is horizontally rotatably mounted on the end of the connecting seat (2) and the bottom of the carriage (6) through the rotating shaft (105). side, and the rotating shafts (105) of the two bogie modules (1) are arranged quasi-symmetrically with respect to the central pivot axis (3); The bogie module (1) includes a bearing wheel axle seat (101), a bearing wheel (102), a lateral damping member (103), and a guide wheel (104), and the bearing wheels (102) are provided with a pair and are respectively arranged on the On the left and right ends of the bearing wheel axle seat (101), the two bearing wheels (102) are in rolling fit with the two track assemblies respectively, the guide wheels (104) are provided with two groups and each group has at least two, and the two groups of guide wheels ( 104) Symmetrically arranged with respect to the center line of the carriage and connected to the transverse damping member (103), the two sets of guide wheels (104) are respectively in rolling fit with the two rail assemblies, and the transverse damping member (103) can be The direction perpendicular to the center line of the carriage is elastically deformed and the two groups of guide wheels (104) are driven to press against the two track assemblies respectively, and the rotating shaft (105) is located at the center position of the bearing wheel axle seat (101); The transverse damping component (103) is composed of a scissors fork linkage mechanism (103b) and a spring damping assembly (103a). The scissors fork linkage mechanism (103b) forms a sliding pair connection with the bearing wheel axle seat (101), and the sliding pair is perpendicular to the center line of the carriage, and the scissors fork linkage mechanism (103b) has a central hinge point and is located at the rotating shaft (105). ), the scissors fork linkage mechanism (103b) is horizontally rotatably connected to the bearing wheel axle seat (101) through a central hinge point, and the spring damping assembly (103a) is connected to the scissors fork linkage mechanism (103b). Combined so that the scissors fork linkage (103b) can be tensioned to both sides, the guide wheel (104) is mounted on the scissors fork linkage (103b); Each track assembly includes a guide track (4) and a load-bearing track (5). The rotation axis of the guide wheel (104) is vertically arranged and rolls on the guide track (4). The rotation of the load-bearing wheel (102) The axis is set horizontally and rolls on the load-bearing track (5); The above-mentioned spring damping assembly (103a) is composed of a spring and a damping shock absorber, and the spring and the damping shock absorber are arranged separately or in combination with each other. 2 . The automatic centering dual-axle bogie system for new wheel-rail trains according to claim 1 , wherein the guide wheels ( 104 ) are made of light-weight and high-strength materials. 3 . 3. The automatic centering dual-axle bogie system for new wheel-rail trains according to claim 1, wherein the load-bearing wheels (102) are made of light-weight and high-strength materials. 4. An automatic centering dual-axle bogie system for new wheel rail trains according to claim 1, characterized in that: the contact surface of the guide rail (4) is vertically arranged, and the load-bearing rail (5) ) of the contact surface level setting.

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