CN210591909U

CN210591909U - A articulated mounting and railcar for rail vehicle

Info

Publication number: CN210591909U
Application number: CN201921259641.3U
Authority: CN
Inventors: 谈达宏; 朱成成; 刘信军
Original assignee: Jiangsu Yuan Zhida Rail Transit Development Co ltd
Current assignee: Jiangsu Yuan Zhida Rail Transit Development Co ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-05-22
Anticipated expiration: 2029-08-05

Abstract

The utility model provides a hinging device for a rail vehicle and the rail vehicle, which relate to the technical field of rail traffic and comprise an upper hinging component, a lower hinging component, a longitudinal pull rod and a fixed double-hinging component; the upper hinge assembly, the lower hinge assembly and the fixed double hinge assembly can rotate, so that two adjacent vehicles have rotational freedom; the upper hinge assembly forms a first hinge position through the first hinge seat, the second hinge seat and the first middle shaft, a second hinge position is formed through the first fixing part, the second fixing part and the connecting shaft, and the first connecting hole can move in the Y direction relative to the connecting shaft, so that the upper part of a carriage body of two adjacent sections of vehicles can adapt to the change of the distance in the Y direction when the side rolling phenomenon occurs, and the working condition requirements of the vehicles on passing curves, uneven two side rail surfaces, ascending and descending and the like are met; the technical problems that an upper hinge assembly in the prior art is inflexible in rotation and cannot bear acting force in the direction perpendicular to the track are solved.

Description

A articulated mounting and railcar for rail vehicle

Technical Field

The utility model belongs to the technical field of the rail transit technique and specifically relates to a hinging device and railcar for rail vehicle is related to.

Background

The tramcar is a light rail transit vehicle which is driven by electricity and runs on a rail; the tramcar connecting device is suitable for connection between urban light rails and low-floor tramcars of tramcars, is a key part of the tramcar, has the same function as a car coupler, is a main stress part between tramcar bodies, and has the performance of the product related to the running safety of trains and the comfort level of passengers.

At present, in order to make the rotating motion of each carriage of a multi-section rail vehicle consistent when the carriages run on a curve, the upper part and the lower part of each carriage are simultaneously provided with a rotating hinge system, and the rotating hinge systems are used for limiting the rotation of the lower part and the upper part of each carriage so as to improve the consistency of the rotating motion of each carriage; the articulated rotary system for the lower part of the car is generally called the lower articulated system and the articulated rotary system for the upper part of the car is generally called the upper articulated rotary system.

However, since the trains may be in different rolling degrees when running on a curve, the carriages of two adjacent carriages have a tendency of moving in opposite directions or in opposite directions along the Y direction (the direction perpendicular to the track) on the upper parts of the carriages, the hinge device of the railway vehicle in the prior art has a single structure, cannot meet various working conditions of the railway vehicle, and the upper hinge system in the prior art has inflexible structure and generates abnormal sound due to bearing wear during movement, which affects the stability of the product.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an articulated mounting and railcar for rail vehicle to alleviate the last articulated subassembly that exists among the prior art and rotate dumb, can't bear the technical problem with the effort of track vertically direction.

The embodiment of the utility model is realized like this:

the utility model provides a pair of an articulated mounting for rail vehicle for a plurality of vehicle group, vehicle group includes two adjacent vehicles, articulated mounting includes: the device comprises an upper hinge assembly, a lower hinge assembly, a longitudinal pull rod and a fixed double hinge assembly;

two adjacent vehicles are respectively connected through the upper hinge assembly and the lower hinge assembly; the upper parts of two adjacent vehicle groups are connected through the longitudinal pull rod, and the lower parts of the two adjacent vehicle groups are connected through the fixed double-hinge assembly;

the upper hinge assembly comprises a first hinge seat, a second hinge seat, a first intermediate shaft, a first fixing part, a second fixing part and a connecting shaft;

the first hinge seat is hinged with a first vehicle body of two adjacent vehicles, and the second hinge seat is hinged with a second vehicle body of two adjacent vehicles; the first hinge seat and the second hinge seat are hinged through the first middle shaft;

the one end of first fixed part with first articulated seat is connected, the one end of second fixed part with the articulated seat of second is connected, just the other end of first fixed part is provided with the notch, the connecting axle is located in the notch, just the connecting axle with both sides fixed connection in the notch, the other end of second fixed part is provided with first connecting hole, first connecting hole with the connecting axle rotates to be connected, so that the second fixed part with first fixed part is articulated.

In a preferred embodiment of the present invention, the upper hinge assembly further includes a first buffer portion and a second buffer portion;

the first buffering part and the second buffering part are all sleeved outside the connecting shaft, the first buffering part and the second buffering part are respectively located on two sides of the first connecting hole, two ends of the first buffering part are respectively abutted to one side inner wall of the first fixing part and one side outer wall of the second fixing part, two ends of the second buffering part are respectively abutted to the other side inner wall of the first fixing part and the other side outer wall of the second fixing part, and the first buffering part and the second buffering part are used for jointly acting on two sides of the second fixing part so that the second fixing part is located in the middle of the notch of the first fixing part.

In a preferred embodiment of the present invention, the through hole of the second fixing portion is rotatably connected to the connecting shaft in the first fixing portion through a self-lubricating bearing.

In a preferred embodiment of the present invention, each vehicle is provided with a turret;

two adjacent vehicles are connected with the rotating frame through the lower hinge assembly.

In a preferred embodiment of the present invention, the lower hinge assembly includes a first hinge body, a second hinge body, and a rotation shaft;

the first articulation body is articulated with a first body of two adjacent vehicles and the second articulation body is articulated with a second body of two adjacent vehicles; the first hinge body and the second hinge body are rotatably connected through the rotating shaft;

the first hinge body is connected with the rotating frame.

In a preferred embodiment of the present invention, the rotating shaft includes a self-lubricating bearing and a second intermediate shaft;

the second intermediate shaft penetrates through the self-lubricating bearing and is in rotary connection with the self-lubricating bearing;

a groove is formed in one side, close to the second hinge main body, of the first hinge main body, mounting seats are arranged along two side edges of the groove, and two ends of the second intermediate shaft can be fixedly connected with the mounting seats;

the articulated main part of second is close to one side of first articulated main part is provided with connects the arch, be provided with the second connecting hole on the connection arch, connect the arch and be located in the recess, just the second connecting hole with self-lubricating bearing connects, so that the articulated main part of second with first articulated main part is articulated.

In a preferred embodiment of the present invention, the mounting seat includes a fixing plate, a fixing groove and a pressing block;

the fixing plate is located on one side, away from the opening, of the fixing groove, a connecting port for connecting a bogie of the vehicle group is formed in the fixing plate, the second intermediate shaft is inserted into the fixing groove, the pressing block is connected with the opening end of the fixing groove, and the pressing block is used for fixing the second intermediate shaft into the fixing groove.

In a preferred embodiment of the present invention, the lower hinge assembly further includes a third buffer portion and a fourth buffer portion;

the third buffer part and the fourth buffer part are all sleeved outside the second intermediate shaft, the third buffer part and the fourth buffer part are respectively located on two sides of the self-lubricating bearing, two ends of the third buffer part are respectively abutted to one side groove inner wall of the first hinged main body and one side outer wall of the second hinged main body, two ends of the fourth buffer part are respectively abutted to the other side groove inner wall of the first hinged main body and the other side outer wall of the second hinged main body, and the third buffer part and the fourth buffer part are used for jointly acting on two sides of the second hinged main body so that the second hinged main body is located in the middle position of the groove of the first hinged main body.

In a preferred embodiment of the present invention, the fixed double hinge assembly comprises an intermediate link and a fixed hinge;

the middle connecting frame is of a structure shaped like a Chinese character 'mi', and comprises a longitudinal beam, a transverse beam vertically connected with the longitudinal beam, a stop beam obliquely connected with the longitudinal beam, and a reinforcing beam respectively connected with the longitudinal beam and the stop beam;

the fixed hinged parts are the same as the lower hinged component in structure, two fixed hinged parts are arranged, one of the two ends of each fixed hinged part is hinged to one end of the middle connecting frame and two adjacent vehicle bodies in the vehicle group, and the other of the two ends of each fixed hinged part is hinged to the other end of the middle connecting frame and two adjacent vehicle bodies in the vehicle group.

The utility model provides a rail car, include a hinge assembly for rail vehicle.

The embodiment of the utility model provides a beneficial effect is:

the utility model provides a pair of an articulated mounting for rail vehicle for a plurality of vehicle group, vehicle group include two adjacent vehicles, and articulated mounting includes: the device comprises an upper hinge assembly, a lower hinge assembly, a longitudinal pull rod and a fixed double hinge assembly; two adjacent vehicles are respectively connected through an upper hinge assembly and a lower hinge assembly; the upper parts of two adjacent vehicle groups are connected through a longitudinal pull rod, and the lower parts of the two adjacent vehicle groups are connected through a fixed double-hinge assembly; because the upper hinge assembly, the lower hinge assembly and the fixed double hinge assembly can rotate, two adjacent vehicles have a rotational degree of freedom.

Furthermore, the upper hinge assembly comprises a first hinge seat, a second hinge seat, a first intermediate shaft, a first fixing part, a second fixing part and a connecting shaft; the first hinge seat is hinged with a first vehicle body of two adjacent vehicles, and the second hinge seat is hinged with a second vehicle body of two adjacent vehicles; the first hinge seat is hinged with the second hinge seat through a first middle shaft; one end of the first fixing part is connected with the first hinge seat, one end of the second fixing part is connected with the second hinge seat, the other end of the first fixing part is provided with a notch, the connecting shaft is positioned in the notch and fixedly connected with two sides in the notch, the other end of the second fixing part is provided with a first connecting hole, and the first connecting hole is rotatably connected with the connecting shaft so that the second fixing part is hinged with the first fixing part; the upper hinge assembly forms a first hinge position through the first hinge seat, the second hinge seat and the first middle shaft, and forms a second hinge position through the first fixing part, the second fixing part and the connecting shaft, so that the first connecting hole can move in the Y direction relative to the connecting shaft on the basis that two adjacent vehicles have the freedom degree of turning, and the carriage bodies of the two adjacent vehicles can move in the Y direction, so that the change of the upper parts of the carriage bodies of the two adjacent vehicles in the Y direction distance can be adapted to the change of the side rolling phenomenon, the working condition requirements of turning, side rolling, pitching and the like can be completed for the whole train, namely the working condition requirements of the vehicles on a curve, two uneven side rail surfaces, ascending and descending and the like are met; the technical problems that an upper hinge assembly in the prior art is inflexible in rotation and cannot bear acting force in the direction perpendicular to the rail are solved, and the running stability and riding comfort of the train are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of an articulation device for a rail vehicle according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an upper hinge assembly of a hinge assembly for a railway vehicle according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a lower hinge assembly of a hinge device for a railway vehicle according to an embodiment of the present invention;

fig. 4 is a front view of a lower hinge assembly of a hinge assembly for a rail vehicle according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fixed double hinge assembly of a hinge assembly for a rail vehicle according to an embodiment of the present invention;

fig. 6 is a partial enlarged view of a longitudinal tie rod of an articulation device for a rail vehicle according to an embodiment of the present invention.

Icon: 100-vehicle group; 101-a vehicle; 200-an upper hinge assembly; 201-a first articulated seat; 202-a second articulated mount; 203-a first intermediate shaft; 204-a first fixed part; 205-a second stationary part; 215-first connection hole; 206-a connecting shaft; 300-a lower hinge assembly; 301-a first hinge body; 302-a second hinge body; 312-connecting projection; 303-a rotating shaft; 304-a mount; 314-a fixed plate; 324-a fixation slot; 334-a compression block; 400-longitudinal tie rod; 401-rubber joint; 500-secure double hinge assembly; 501-fixed hinge; 502-intermediate link frame; 512-longitudinal beam; 522-beam; 532-stop beam; 542-a reinforcing beam; 600-a first buffer; 700-a second buffer; 800-a third buffer; 900-fourth buffer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. The components of embodiments of the present invention, as 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 accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to 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", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, 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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

As shown in fig. 1 to 6, the present embodiment provides an articulated apparatus for a rail vehicle, which is used for a plurality of vehicle groups 100, the vehicle groups 100 including two adjacent vehicles 101, the articulated apparatus including: an upper hinge assembly 200, a lower hinge assembly 300, a longitudinal tie rod 400, and a fixed double hinge assembly 500; two adjacent vehicles 101 are respectively connected through an upper hinge assembly 200 and a lower hinge assembly 300; the upper parts of two adjacent vehicle groups 100 are connected by a longitudinal tie rod 400, and the lower parts are connected by a fixed double hinge assembly 500; the upper hinge assembly 200 includes a first hinge seat 201, a second hinge seat 202, a first intermediate shaft 203, a first fixing portion 204, a second fixing portion 205, and a connecting shaft 206; the first articulated seat 201 is articulated with a first body of two adjacent vehicles 101, and the second articulated seat 202 is articulated with a second body of two adjacent vehicles 101; the first hinge seat 201 is hinged with the second hinge seat 202 through a first intermediate shaft 203; one end of the first fixing portion 204 is connected to the first hinge base 201, one end of the second fixing portion 205 is connected to the second hinge base 202, and the other end of the first fixing portion 204 is provided with a notch, the connecting shaft 206 is located in the notch, and the connecting shaft 206 is fixedly connected to two sides of the notch, the other end of the second fixing portion 205 is provided with a first connecting hole 215, and the first connecting hole 215 is rotatably connected to the connecting shaft 206, so that the second fixing portion 205 is hinged to the first fixing portion 204.

It should be noted that the hinge assembly for rail vehicles according to the present embodiment is a vehicle 101 end connection component that enables coupling between vehicles 101, transmits traction force, braking force and impact force, and keeps a certain distance between vehicles 101.

As shown in fig. 2, the upper hinge assembly 200 forms a first hinge position through a first hinge seat 201, a second hinge seat 202 and a first intermediate shaft 203, specifically, the first hinge seat 201 and the second hinge seat 202 may be made of cast parts or sheet metal parts, the first hinge seat 201 and the second hinge seat 202 are hinged to the first vehicle body and the second vehicle body of two adjacent vehicles 101 in a bolt-fixed manner, and a rotational connection is made between the first hinge base 201 and the second hinge base 202 by means of a first intermediate shaft 203, wherein, the first middle shaft 203 can adopt a spherical hinge connection mode, so that the first hinge seat 201 and the second hinge seat 202 have a plurality of directional degrees of freedom, or, the first intermediate shaft 203 can also be rotationally connected by a self-lubricating ball bearing, and the first hinge seat 201 and the second hinge seat 202 can have freedom degrees in multiple directions; when the rail vehicle normally runs on a horizontal linear rail, the first hinge seat 201, the second hinge seat 202 and the first intermediate shaft 203 are all in the horizontal direction, and when the rail vehicle turns, rolls and pitches, the first intermediate shaft 203 can correspondingly rotate in the corresponding direction relative to the first hinge seat 201 and the second hinge seat 202, so that the multi-degree-of-freedom rotation of the upper hinge assembly 200 at the first hinge position is realized.

Further, in order to ensure the stability of the degree of automation of the first hinge position of the upper hinge assembly 200, the upper hinge assembly 200 forms a second hinge position by the first fixing portion 204, the second fixing portion 205 and the connecting shaft 206, and specifically, the first fixing portion may adopt a first fixing plate and a second fixing plate, wherein the first fixing plate is fixedly connected with the first hinge base 201, the second fixing plate is connected with the first fixing plate, and a notch is formed between the first fixing plate and the second fixing plate, and the connecting shaft 206 is installed at a position of the notch, wherein a rotating portion is provided at an intermediate position of the connecting shaft 206, the rotating portion may be a ball hinge, a ball joint bearing, or a hinge ring, etc., the rotation in the horizontal direction may be achieved by the connecting shaft 206 and the rotating portion, and the rotating portion may move in the vertical direction along the connecting shaft 206, and a protrusion is provided by the second fixing portion 205, the first connecting hole 215 is arranged at a position, close to the notch, of the protrusion, the second fixing part 205 is connected with the rotating part of the connecting shaft 206 through the first connecting hole 215 of the protrusion, so that the second fixing part 205 can rotate in multiple degrees of freedom in the horizontal and vertical directions relative to the first fixing part 204, when a rail vehicle normally runs on a horizontal linear rail, the first fixing part 204, the second fixing part 205 and the connecting shaft 206 are all in the horizontal direction, and when the rail vehicle turns, rolls and pitches, the connecting shaft 206 can enable the corresponding second fixing part 205 to rotate in the corresponding direction relative to the first fixing part 204, so that the multiple degrees of freedom rotation of the upper hinge assembly 200 in the second hinge position is realized; the first hinge position and the second hinge position ensure the running stability of the railway vehicle and prolong the service life of the upper hinge assembly 200; the unexpected side rolling stress phenomenon of each carriage and the generated tendency of separating from the track caused by the side rolling motion of the rail vehicle are reduced, and the increase of the train operation stability and riding comfort is facilitated.

Wherein the lower hinge assembly 300 installed at the lower portion of the vehicle body has a load capacity about 4 times that of the upper hinge assembly 200; the working condition stress requirement of the whole trolley is met.

It should be noted that the longitudinal tension rod 400 includes a rubber joint 401 and an inner spring; the rubber joints 401 are arranged at two ends of the longitudinal pull rod 400, the longitudinal pull rod 400 is respectively connected with two adjacent vehicle groups 100 at two ends through the rubber joints 401 so as to enable the two adjacent vehicle groups 100 to play a role of buffering in the driving direction of the vehicle 101, and the built-in spring is arranged inside the rubber joints 401 and used for enabling the two adjacent vehicle groups 100 to be stretched and compressed in the driving direction of the vehicle; the rubber joint 401 has the compression and stretching capacity with larger amplitude, so that the whole train has the freedom degrees (rotation in three directions around X, Y, Z) -rotation, roll and pitch; can be stretched and compressed in the direction of travel of the vehicle 101; moreover, the rubber joint 401 has the functions of shock absorption and buffering, so that the comfort level of passengers is improved, the noise is reduced, and the rubber joint is more practical; since other structures of the longitudinal tie 400 belong to the existing structures, they will not be described in detail herein.

The present embodiment provides an articulated mounting for rail vehicles, which is used for a plurality of vehicle groups 100, wherein the vehicle groups 100 comprise two adjacent vehicles 101, and the articulated mounting comprises: an upper hinge assembly 200, a lower hinge assembly 300, a longitudinal tie rod 400, and a fixed double hinge assembly 500; two adjacent vehicles are respectively connected through an upper hinge assembly 200 and a lower hinge assembly 300; the upper parts of two adjacent vehicle groups 100 are connected by a longitudinal tie rod 400, and the lower parts are connected by a fixed double hinge assembly 500; because the upper hinge assembly 200, the lower hinge assembly 300 and the fixed double hinge assembly 500 can rotate, two adjacent vehicles 101 have a rotational degree of freedom.

Further, the upper hinge assembly 200 includes a first hinge seat 201, a second hinge seat 202, a first intermediate shaft 203, a first fixing portion 204, a second fixing portion 205, and a connecting shaft 206; the first articulated seat 201 is articulated with a first body of two adjacent vehicles 101, and the second articulated seat 202 is articulated with a second body of two adjacent vehicles 101; the first hinge seat 201 is hinged with the second hinge seat 202 through a first intermediate shaft 203; one end of the first fixing portion 204 is connected to the first hinge base 201, one end of the second fixing portion 205 is connected to the second hinge base 202, the other end of the first fixing portion 204 is provided with a notch, the connecting shaft 206 is located in the notch, the connecting shaft 206 is fixedly connected to two sides of the notch, the other end of the second fixing portion 205 is provided with a first connecting hole 215, and the first connecting hole 215 is rotatably connected to the connecting shaft 206 so that the second fixing portion 205 is hinged to the first fixing portion 204; the upper hinge assembly 200 forms a first hinge position through the first hinge seat 201, the second hinge seat 202 and the first intermediate shaft 203, and forms a second hinge position through the first fixing part 204, the second fixing part 205 and the connecting shaft 206, so that the first connecting hole 215 can move in the Y direction relative to the connecting shaft 206 on the basis that two adjacent vehicles 101 have the freedom degree of turning, and thus the cars of two adjacent vehicles 101 can move in the Y direction, and the upper parts of the cars of two adjacent vehicles 101 can adapt to the change of the distance in the Y direction when the rolling phenomenon occurs, and the operating condition requirements of turning, rolling, pitching and the like can be completed for the whole train 101, namely the operating condition requirements of the vehicles 101 on turning, rolling, uneven two rail surfaces, ascending and descending and the like can be met; the technical problems that the upper hinge assembly 200 is inflexible to rotate and cannot bear acting force in the direction perpendicular to the rail in the prior art are solved, and the running stability and riding comfort of the train are improved.

On the basis of the above embodiment, further, in the preferred embodiment of the present invention, the upper hinge assembly 200 further includes a first buffer 600 and a second buffer 700; the first buffer portion 600 and the second buffer portion 700 are both sleeved outside the connecting shaft 206, and the first buffer portion 600 and the second buffer portion 700 are respectively located at two sides of the first connecting hole 215, and two ends of the first buffer portion 600 are respectively abutted to an inner wall of one side of the first fixing portion 204 and an outer wall of one side of the second fixing portion 205, two ends of the second buffer portion 700 are respectively abutted to an inner wall of the other side of the first fixing portion 204 and an outer wall of the other side of the second fixing portion 205, and the first buffer portion 600 and the second buffer portion 700 are used for jointly acting on two sides of the second fixing portion 205, so that the second fixing portion 205 is located at a middle position of the notch of the first fixing portion 204.

Preferably, the first buffer portion 600 and the second buffer portion 700 both use compression springs, the first buffer portion 600 and the second buffer portion 700 have a movement tendency that the second fixing portion 205 is far away from the inner wall of the notch of the first fixing portion 204, in other words, the compression springs are always in a stressed state during normal operation, when the rail vehicle is in horizontal operation, the two ends of the compression springs are stressed in a balanced state, when the rail vehicle is in working conditions such as turning, rolling, pitching, and the like, the second fixing portion 205 can compress the first buffer portion 600 or the second buffer portion 700 to complete the above movement state, and after the rail vehicle completes the movement, the stress between the first buffer portion 600 and the second buffer portion 700 is balanced, and the second fixing portion 205 can be continuously fixed at the middle position of the notch of the first fixing portion 204.

It should be noted that the rotating portion in the middle of the connecting shaft 206 has only a vertical direction of movement relative to the connecting shaft 206, wherein a protruding track or a protruding channel of a pin may be provided between the connecting shaft 206 and the rotating portion, so that the rotating portion and the connecting shaft 206 do not fall off, or the rotating portion rotates relative to the connecting position of the connecting shaft 206, further, the rotating portion may adopt a self-lubricating ball bearing to rotate, and after the second fixing portion 205 is fixedly connected to the rotating portion of the connecting shaft 206, it can be ensured that the second fixing portion 205 rotates relative to the first fixing portion 204.

In addition, in addition to the first buffer 600 and the second buffer 700, the connecting shaft 206 may not be provided with a rotating portion, and the first connecting hole 215 of the second fixing portion 205 is rotatably connected to the connecting shaft 206, and the first connecting hole 215 can move in a vertical direction with respect to the extending direction of the connecting shaft 206, so that the multi-freedom movement of the upper hinge assembly 200 at the second hinge position can be satisfied.

Optionally, the inner walls of the two sides of the first fixing portion 204 may be provided with a clamping groove for fixing the first buffer portion 600 and the second buffer portion 700, and the outer walls of the two sides of the second fixing portion 205 may also be provided with a clamping groove for fixing the first buffer portion 600 and the second buffer portion 700, so that the stability of the first buffer portion 600 and the second buffer portion 700 can be ensured through the arrangement of the clamping grooves.

In the preferred embodiment of the present invention, the through hole of the second fixing portion 205 is rotatably connected to the connecting shaft 206 in the first fixing portion 204 through a self-lubricating bearing.

The self-lubricating bearing comprises a bearing outer ring, a bearing inner ring and a self-lubricating bearing wear-resistant layer, wherein the self-lubricating bearing wear-resistant layer is positioned between the bearing outer ring and the bearing inner ring and clings to the inner wall of the bearing outer ring.

In the preferred embodiment of the present invention, each vehicle 101 is provided with a turret; two adjacent vehicles 101 are connected to the turret by lower hinge assemblies 300.

The connection mode of the lower hinge assembly 300 and the rotating frame is coupling, and the connection mode of the fixed double hinge assembly 500 and the rotating frame is coupling.

In the preferred embodiment of the present invention, the lower hinge assembly 300 includes a first hinge body 301, a second hinge body 302, and a rotation shaft 303; the first articulation body 301 is articulated to a first body of the two adjacent vehicles 101 and the second articulation body 302 is articulated to a second body of the two adjacent vehicles 101; the first hinge body 301 and the second hinge body 302 are rotatably connected through a rotating shaft 303; the first hinge body 301 is connected to the turret.

In the preferred embodiment of the present invention, the rotating shaft 303 includes a self-lubricating bearing and a second intermediate shaft; the second intermediate shaft penetrates through the self-lubricating bearing and is in rotating connection with the self-lubricating bearing; a groove is formed in one side, close to the second hinge main body 302, of the first hinge main body 301, mounting seats 304 are arranged along two side edges of the groove, and two ends of the second intermediate shaft can be fixedly connected with the mounting seats 304; one side of the second hinge body 302 close to the first hinge body 301 is provided with a connecting protrusion 312, the connecting protrusion 312 is provided with a second connecting hole, the connecting protrusion 312 is located in the groove, and the second connecting hole is connected with the self-lubricating bearing, so that the second hinge body 302 is hinged to the first hinge body 301.

The self-lubricating bearing comprises a bearing rolling ball fixed on the boss in a sleeved mode and a wear-resistant bushing wrapped on the bearing rolling ball. The self-lubricating bearing adopts a self-lubricating liner, the liner is engineering plastic for the self-lubricating bearing, the engineering plastic is made of a self-lubricating material, and the self-lubricating liner is matched with the ball body without adding lubricating substances. Structurally, the self-lubricating bearing is sealed up and down, so that a good running environment of the self-lubricating bearing is kept, and the stability of the self-lubricating bearing is ensured.

In the preferred embodiment of the present invention, the mounting base 304 comprises a fixing plate 314, a fixing groove 324 and a pressing block 334; the fixing plate 314 is located on one side, away from the opening, of the fixing groove 324, a connecting port for connecting a bogie of the vehicle group 100 is formed in the fixing plate 314, the second intermediate shaft is inserted into the fixing groove 324, the pressing block 334 is connected with the opening end of the fixing groove 324, and the pressing block 334 is used for fixing the second intermediate shaft in the fixing groove 324.

Optionally, a groove is formed in one side of the first hinge body 301 close to the second hinge body 302, such that one side of the first hinge body 301 close to the second hinge body is U-shaped, a connecting protrusion 312 is formed in one side of the second hinge body 302 close to the first hinge body 301, such that one side of the second hinge body 302 close to the first hinge body is T-shaped, it should be noted that the second hinge body 302 in T-shape needs to meet the requirement of self-design strength, and the connecting protrusion 312 is connected with a self-lubricating bearing, such that the second hinge body 302 is hinged to the first hinge body 301, preferably, the self-lubricating bearing can be an elastic bearing, and the elastic bearing and the second intermediate shaft can have deformation in horizontal direction, and the T-shaped second hinge body 302 and the first hinge body 301 cooperate to realize mechanical connection of adjacent rail vehicles, and the elastic bearing in the T-shaped second hinge body 302 can adapt to various free up and down slopes during the operation of the rail vehicles through curves and the cooperation of the T-shaped second hinge body Relative movement of degrees.

Alternatively, screw holes are provided at both sides of the fixing groove 324, the pressing block 334 is fixed to an opening end of the fixing groove 324 by bolts, and the pressing block 334 is in close contact with the second intermediate shaft.

In the preferred embodiment of the present invention, the lower hinge assembly 300 further includes a third buffer portion 800 and a fourth buffer portion 900; the third buffer portion 800 and the fourth buffer portion 900 are both sleeved outside the second intermediate shaft, the third buffer portion 800 and the fourth buffer portion 900 are respectively located on two sides of the self-lubricating bearing, two ends of the third buffer portion 800 are respectively abutted to the inner wall of a groove on one side of the first hinge main body 301 and the outer wall on one side of the connecting protrusion 312 of the second hinge main body 302, two ends of the fourth buffer portion 900 are respectively abutted to the inner wall of a groove on the other side of the first hinge main body 301 and the outer wall on the other side of the connecting protrusion 312 of the second hinge main body 302, the third buffer portion 800 and the fourth buffer portion 900 are used for jointly acting on two sides of the second hinge main body 302, so that the second hinge main body 302 is located in the middle position of the groove of the first hinge main body 301.

Preferably, the third buffer portion 800 and the fourth buffer portion 900 both use compression springs, and the first buffer portion 600 and the second buffer portion 700 have a tendency to move the connecting protrusion 312 of the second hinge body 302 away from the inner wall of the groove of the first hinge body 301, in other words, the compression springs are always in a stressed state during normal operation, when the rail vehicle is in horizontal operation, the two ends of the compression spring are stressed in a balanced state, and when the rail vehicle is in working conditions of turning, rolling, pitching and the like, the connecting protrusion 312 of the second hinge main body 302 compresses the third buffer part 800 or the fourth buffer part 900 to complete the above-mentioned motion state, after the rail vehicle finishes the action, the stress between the third buffer portion 800 and the fourth buffer portion 900 is balanced, and the connecting protrusion 312 of the second hinge body 302 is continuously fixed at the middle position of the groove of the first hinge body 301.

In the preferred embodiment of the present invention, the fixed double hinge assembly 500 comprises an intermediate connecting frame 502 and a fixed hinge 501; the middle connecting frame 502 is of a structure shaped like a Chinese character 'mi', and comprises a longitudinal beam 512, a transverse beam 522 vertically connected with the longitudinal beam 512, a stop beam 532 obliquely connected with the longitudinal beam 512, and a reinforcing beam 542 respectively connected with the longitudinal beam 512 and the stop beam 532; the fixed hinge 501 has the same structure as the lower hinge assembly 300, and two fixed hinges 501 are provided, wherein two ends of one fixed hinge 501 are respectively hinged to one end of the intermediate link 502 and a first vehicle body of two adjacent vehicle groups 100, and two ends of the other fixed hinge 501 are respectively hinged to the other end of the intermediate link 502 and a second vehicle body of two adjacent vehicle groups 100.

The stop beams 532 are symmetrically distributed along the center of the longitudinal beam 512; the cross member 522 is provided with a floor support beam for supporting the floor. The longitudinal beam 512 and the stop beam 532 are box-shaped beams formed by butt-joint assembly welding of channel steel with a C-shaped cross section from top to bottom; and the longitudinal beam 512 is provided with lightening holes.

Alternatively, the stopping beam 532 and the cross beam 522 may be connected to the longitudinal beam 512 through flanges, the reinforcing beams 542 may be connected to the stopping beam 532 and the longitudinal beam 512 through flanges, further, the stopping beam 532 and the longitudinal beam 512 are connected through a plurality of reinforcing beams 542, the reinforcing beams 542 and the stopping beam 532 are symmetrically arranged on two sides of the longitudinal beam 512, and each reinforcing beam 542 may be connected to the longitudinal beam 512 together to provide a more uniform supporting force to the transition plate in the circumferential direction. The stop beam 532 can enhance the structural strength of the cross beam 522 and the longitudinal beam 512, and reduce the probability of bending deformation of the reinforcing beam 542 due to overlarge stress, thereby being beneficial to improving the supporting stability of the reinforcing beam 542 on the longitudinal beam 512.

As shown in fig. 5, it should be noted that the fixed hinge 501 and the lower hinge assembly 300 have the same structure, and the bottom surfaces of the first hinge body 301 and the second hinge body 302 of the fixed hinge 501 are provided with threaded holes, which are connected with the intermediate connecting frame 502 through internal threads; the first hinge body 301 and the second hinge body 302 are provided with screw holes, which are internally threaded with the vehicle body.

Optionally, at two side ends of the intermediate connecting frame 502, one side of the intermediate connecting frame is connected to the first hinge body 301 of one fixed hinge 501, and the other side of the intermediate connecting frame is connected to the second hinge body 302 of the other fixed hinge 501, and correspondingly, the fixed hinge 501 correspondingly rotates with multiple degrees of freedom through the first hinge body 301, the second hinge body 302 and the rotating shaft 303, and since the fixed hinge 501 and the lower hinge assembly 300 have the same structure, the technical effect of the fixed hinge 501 is the same as that of the lower hinge assembly 300, and will not be described herein again.

The embodiment provides a railway vehicle, which comprises the hinge device for the railway vehicle; since the technical effect of the rail car provided by the present embodiment is the same as the technical effect of the hinge device for a rail car provided by the above embodiments, the detailed description thereof is omitted.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An articulation arrangement for a rail vehicle for a plurality of vehicle groups, said vehicle groups comprising two adjacent vehicles, characterized in that said articulation arrangement comprises: the device comprises an upper hinge assembly, a lower hinge assembly, a longitudinal pull rod and a fixed double hinge assembly;

2. The articulation device for a railway vehicle according to claim 1, characterized in that said upper articulation assembly further comprises a first damping portion and a second damping portion;

3. The hinge assembly for a railway vehicle according to claim 2, wherein the through hole of the second fixing portion is rotatably connected with the connection shaft in the first fixing portion through a self-lubricating bearing.

4. The articulated apparatus for railway vehicles according to claim 1, characterized in that each vehicle is provided with a turret;

5. The articulation device for a railway vehicle according to claim 4, characterized in that said lower articulation assembly comprises a first articulation body, a second articulation body and a rotation shaft;

the first hinge body is connected with the rotating frame.

6. The articulated apparatus for a railway vehicle according to claim 5, characterized in that the rotating shaft comprises a self-lubricating bearing and a second intermediate shaft;

7. The hinge assembly for a railway vehicle according to claim 6, wherein the mount includes a fixing plate, a fixing groove, and a compression block;

8. The articulation device for a railway vehicle according to claim 7, characterized in that said lower articulation assembly further comprises a third cushioning portion and a fourth cushioning portion;

9. The articulation arrangement for a rail vehicle according to any one of claims 5 to 8, characterized in that said fixed double articulation assembly comprises an intermediate connecting frame and a fixed articulation;

10. A rail vehicle, characterized in that it comprises an articulation device for rail vehicles according to any one of claims 1 to 9.