CN111806494A

CN111806494A - Suspension type freight air-iron secondary suspension system

Info

Publication number: CN111806494A
Application number: CN202010836479.8A
Authority: CN
Inventors: 贾强; 赵素荣; 计强; 代世锐; 李廉枫
Original assignee: CRRC Ziyang Co Ltd
Current assignee: CRRC Ziyang Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2020-10-23

Abstract

The invention discloses a secondary suspension system for a suspension type freight air-railway, which at least comprises a connecting device for realizing interconnection of a framework and a sleeper beam, wherein the framework and the sleeper beam are movably connected through the connecting device; the end part of the framework is provided with a through hole structure, the top end of the sleeper beam is provided with two connecting lugs, and the same positions on the lugs are respectively provided with a hole body structure; the connecting device at least comprises a traction pin and a connecting joint, the framework is arranged between the two ear handles of the sleeper beam, the traction pin respectively penetrates through the ear handles and the hole body structure at the end part of the framework, and the traction pin and the framework are further provided with the flexible connecting joint. The elastic connection of the framework and the sleeper beam is realized through the suspension system, and the relative rotation and relative up-down settlement in a certain range can be realized by connecting the rear framework and the sleeper beam, so that the vibration of the vehicle body is effectively reduced, the practical service life of the vehicle body and the bogie is prolonged, and the maintenance cost is reduced.

Description

Suspension type freight air-iron secondary suspension system

Technical Field

The invention belongs to the technical field of running parts of railway vehicles, and particularly relates to a secondary suspension system for a suspension type freight air-iron.

Background

With the development of rail transit, the suspended air-rail has the characteristics of small occupied space, flexible marshalling, low energy consumption, low manufacturing cost and the like, is widely concerned by various countries, and develops various air-rail locomotives with wide application prospects.

However, the air-rail locomotive developed at present is mainly used for passenger transportation or commuting in cities, tourist hot spots, areas with high population density and areas with difficult ground railway construction. The development progress of the suspension type air-rail for freight transportation is slow, and the suspension type air-rail for freight transportation is limited by the carrying capacity, the applicable freight transportation range and the technical conditions of the air-rail for freight transportation, so that few air-rail locomotives for freight transportation are mature and used at present. Particularly, how to realize the connection between the air-rail bogie and the vehicle body is a problem which needs to be solved urgently.

Disclosure of Invention

The invention aims to: in order to overcome the problems in the prior art, the suspension type freight air-railway secondary suspension system is provided, and the elastic connection between a framework and a sleeper beam is realized through the suspension system.

The purpose of the invention is realized by the following technical scheme:

a secondary suspension system for a suspended freight air-railway, which at least comprises a connecting device for realizing interconnection of a framework and a sleeper beam, wherein the framework and the sleeper beam are movably connected through the connecting device; the end part of the framework is provided with a through hole structure, the top end of the sleeper beam is provided with two connecting lugs, and the same positions on the lugs are respectively provided with a hole body structure; the connecting device at least comprises a traction pin and a connecting joint, the framework is arranged between the two ear handles of the sleeper beam, the traction pin respectively penetrates through the ear handles and the hole body structure at the end part of the framework, and the traction pin and the framework are further provided with the flexible connecting joint.

According to a preferred embodiment, the connecting joint is of an annular structure, and the connecting joint is sleeved on the traction pin in a closing mode.

According to a preferred embodiment, the connection joint is made of rubber.

According to a preferred embodiment, the connecting device further comprises at least a first bushing, a second bushing and a washer, wherein the first bushing and the second bushing are respectively arranged between the traction pin and the two lugs of the bolster; the tail of the traction pin is sleeved with a nut, and a gasket used for finishing the limiting of the second bushing is arranged between the nut and the lug.

According to a preferred embodiment, a retainer ring is further arranged between the first bushing and the connecting joint.

According to a preferred embodiment, the suspension system further comprises two rubber piles symmetrically arranged on two sides of the central line of the bogie, and the sleeper beam is connected with the vehicle body through the two rubber piles.

The main scheme and the further selection schemes can be freely combined to form a plurality of schemes which are all adopted and claimed by the invention; in the invention, the selection (each non-conflict selection) and other selections can be freely combined. The skilled person in the art can understand that there are many combinations, which are all the technical solutions to be protected by the present invention, according to the prior art and the common general knowledge after understanding the scheme of the present invention, and the technical solutions are not exhaustive herein.

The invention has the beneficial effects that: the elastic connection of the framework and the sleeper beam is realized through the suspension system, and the relative rotation and relative up-down settlement in a certain range can be realized by connecting the rear framework and the sleeper beam, so that the vibration of the vehicle body is effectively reduced, the practical service life of the vehicle body and the bogie is prolonged, and the maintenance cost is reduced.

Drawings

FIG. 1 is a schematic illustration of the position of the suspension system of the present invention;

FIG. 2 is a schematic structural view of the suspension system of the present invention;

FIG. 3 is an enlarged cross-sectional structural schematic view of the suspension system of the present invention;

wherein, 10-bogie, 11-framework, 12-sleeper beam, 20-connecting device, 21-towing pin, 22-first bushing, 23-retainer ring, 24-second bushing, 25-washer, 26-nut, 27-connecting joint and 30-second rubber pile.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that, 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 embodiments of the present invention, but not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, it should be noted that, in the present invention, if the specific structures, connection relationships, position relationships, power source relationships, and the like are not written in particular, the structures, connection relationships, position relationships, power source relationships, and the like related to the present invention can be known by those skilled in the art without creative work on the basis of the prior art.

Example 1:

referring to fig. 1-3, a secondary suspension system for a suspended cargo air-to-rail system is shown. The suspension system comprises at least a connection means 20 for achieving interconnection of the frame 11 and the sleeper beam 12 and a secondary rubber mass 30. The suspension system is located at a bottom end of the frame.

Preferably, the frame 11 and the bolster 12 are movably connected via a connecting device 20. Wherein, the end of the frame 11 is provided with a through hole structure. Two connecting lugs are arranged at the top end of the sleeper beam 12, and hole structures are respectively arranged at the same positions on the lugs.

Preferably, the coupling device 20 comprises at least a traction pin 21 and a coupling knuckle 27. The frame 11 is arranged between two lugs of the sleeper beam 12, the traction pin 21 respectively penetrates through the lugs and the hole structure at the end part of the frame 11, and a flexible connecting joint 27 is further arranged between the traction pin 21 and the frame 11. Whereby the movable connection of the frame 11 and the body bolster 12 is achieved by said towing pin 21. And through the structural arrangement of the connecting joint 27, the framework 11 and the sleeper beam 12 realize elastic connection, and the framework 11 and the sleeper beam 12 can realize a certain range of relative rotation and relative up-down settlement after connection. Thereby the effectual vibration that has slowly reduced the automobile body has increased the practical life of automobile body and bogie, has reduced the maintenance cost.

Preferably, the connection joint 27 is a ring structure, and the connection is sleeved on the traction pin 21. Further, the connection joint 27 may be made of a rubber material. The rubber joint has appropriate torsional rigidity and tensile rigidity.

Preferably, the connection device 20 further comprises at least a first bushing 22, a second bushing 24 and a washer 25.

Wherein the first bushing 22 and the second bushing 24 are respectively disposed between the traction pin 21 and the two lugs of the bolster 12.

And a nut 26 is sleeved at the tail part of the traction pin 21. And a washer 25 for finishing the limit of the second bushing 24 is arranged between the nut 26 and the lug.

Further, a retaining ring 23 is arranged between the first bushing 22 and the connecting joint 27.

Therefore, through the structural arrangement of the first bushing 22, the retainer ring 23 and the second bushing 24, the connecting joint 27 can be limited and prevented from sliding relative to the towing pin 21 in the axial direction or the transverse direction. And the structural stability of the suspension system is improved.

Preferably, the rubber piles 30 are symmetrically arranged on both sides of the center line of the bogie 10. The bolster 12 is connected to the vehicle body via a secondary rubber pile 30. Specifically, the secondary rubber pile 30 selects proper rigidity to effectively reduce the vibration of the car body, so that the dynamic indexes of the air-rail car are met.

Furthermore, the pilot cone offset structure of the secondary rubber pile 30 can enable the car body and the bogie to be reasonably assembled, and the difficulty of the assembling process is effectively reduced.

The foregoing basic embodiments of the invention and their various further alternatives can be freely combined to form multiple embodiments, all of which are contemplated and claimed herein. In the scheme of the invention, each selection example can be combined with any other basic example and selection example at will.

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

1. A secondary suspension system for suspended freight air-railings, characterized in that it comprises at least connecting means (20) for interconnecting a frame (11) and a sleeper beam (12), said frame (11) and sleeper beam (12) being movably connected by means of the connecting means (20);

the end part of the framework (11) is provided with a through hole structure, the top end of the sleeper beam (12) is provided with two connecting lugs, and the same positions on the lugs are respectively provided with a hole structure;

connecting device (20) include towing pin (21) and connect joint (27) at least, framework (11) set up between the two earstems of sleeper beam (12), towing pin (21) run through respectively in the earstem with the hole body structure of framework (11) tip, just towing pin (21) with still be equipped with flexible joint (27) of connecting between framework (11).

2. The secondary suspension system for suspended cargo air-rail according to claim 1, wherein the connecting joint (27) is of a ring structure, and the connecting joint (27) is sleeved on the towing pin (21).

3. A secondary suspension system for a suspended cargo air iron according to claim 1 or 2, characterized in that the connection knuckle (27) is made of rubber.

4. A secondary suspension system for a suspended cargo air iron according to claim 2, characterized in that said connecting means (20) further comprises at least a first bushing (22), a second bushing (24) and a washer (25),

wherein the first bushing (22) and the second bushing (24) are respectively arranged between the traction pin (21) and the two lugs of the sleeper beam (12);

the tail of the traction pin (21) is sleeved with a nut (26), and a gasket (25) used for finishing the limiting of the second bushing (24) is arranged between the nut (26) and the lug.

5. A secondary suspension system for a suspended cargo air iron according to claim 4, characterized in that a retaining ring (23) is provided between the first bushing (22) and the connecting knuckle (27).

6. A secondary suspension system for a suspended cargo air-iron according to claim 1, characterized in that said suspension system further comprises secondary rubber piles (30), said secondary rubber piles (30) being symmetrically arranged on both sides of the centre line of the bogie, said bolster (12) being connected to the car body via the secondary rubber piles (30).