WO2017016483A1 - Railway vehicle and joint connector thereof - Google Patents

Abstract

Provided are a railway vehicle and a joint connector thereof, comprising a concave joint (1) and a convex joint (2) with a follower plate (3) provided therebetween, and further comprising an elastic member (4). The front end of the elastic member (4) can bear against the follower plate (3) and the rear end can bear against the concave joint (1). The connector compensates for the longitudinal gap by means of the deformation of the elastic member in the forward and backward directions, thus ensuring the reliability of load transmission.

Description

Railway vehicle and joint connector thereof

The present application claims priority to Chinese Patent Application No. 201510455512, filed on July 29, 2015, the entire disclosure of which is incorporated herein by reference. In the application.

Technical field

The present invention relates to the field of railway vehicle technology, and more particularly to a railway vehicle and its joint connector.

Background technique

The joint connector is an inter-vehicle connection device for connecting adjacent vehicles. For railway vehicles, the use of joint connectors allows adjacent vehicles to be supported together on one bogie, thereby saving the number of bogies and reducing train quality. .

Please refer to FIG. 1. FIG. 1 is a typical joint connector structure in the prior art.

The joint connector (a joint connector provided by ASF Corporation of the United States) includes a convex joint 10, a concave joint 20, a king pin 30, a center pin 40, a pin block 50, a slave plate 60, a wedge 70, and a ball ring 80. And the ball seat 90 and so on.

The convex joint 10 forms a connecting end toward one end of the concave joint 20, and the concave joint 20 has a mounting cavity 201 for accommodating the connecting end; when the connecting end of the convex joint 10 is placed in the mounting cavity 201 of the concave joint 20, the main joint can be passed through the main A pin 30 extends through the male and female joints 10 and 20 to achieve a connection therebetween; the kingpin 30 extends in a vertical direction to enable the male and female joints 10 and 20 to rotate about the kingpin 30. At the same time, a mounting hole is further provided at the connecting end of the convex joint 10, the mounting hole is a semi-spherical hole-like structure, the king pin 30 can penetrate the mounting hole, and the king pin 30 is realized by the pin-shaped block 50 which is squeeze-mounted. A close fit of the mounting hole; a lower end of the kingpin 30 is also coupled with a center pin 40 disposed coaxially with the kingpin 30 and having a smaller diameter than the kingpin 30 through which the lower end face of the female joint 20 can pass.

In detail, the pin block 50 is provided with a pin block spring so that the pin block 50 can be squeezed The bearing pin 10 is mounted in the mounting hole of the male joint 10 to cooperate with the king pin 30 to realize the transmission of the tensile load. At this time, the mating surface of the mounting hole of the male joint 10 and the pin block 50 constitutes a first rotating pair. The concave joint 20 is further provided with a ball ring 80 and a ball seat 90 at the bottom of the mounting cavity 201. In the vertical direction, the ball ring 80 and the ball seat 90 are interposed between the convex joint 10 and the concave joint 20 for transmitting the vehicle. The vertical load; the mating surface of the ball ring 80 and the ball seat 90 forms a second rotating pair. There is also a slave plate 60 and a wedge 70 between the convex joint 10 and the concave joint 20, and the plate 60 is engaged with the joint end of the convex joint 10, and the wedge 70 is inserted between the slave plate 60 and the concave joint 20, and the wedge The function of 70 is to automatically fall after longitudinal wear occurs to eliminate the longitudinal gap between the convex joint 10 and the concave joint 20, from the plate 60 and the wedge 70 for transmitting a compressive load; between the convex joint 10 and the slave plate 60 The mating surface constitutes a third rotating pair.

When assembling, the pin block 50 may first be press-fitted into the mounting hole of the male joint 10; then, the ball ring 80 and the ball seat 90 are placed at the bottom of the mounting cavity 201 of the concave joint 20; then, the wedge is placed 70, and the wedge 70 is lifted up with a special crowbar; then placed from the plate 60, the convex joint 10 is pushed into the mounting cavity 201 of the concave joint 20, and the plate 60 and the wedge 70 are tightened; finally, The center pin 40, the king pin 30, and the fixing pin can be installed to extract the crowbar.

The above joint connector works as follows.

Regarding the rotation function: as described above, the three pairs of mating faces between the convex joint 10 and the slave plate 60, between the convex joint 10 and the pin block 50, and between the ball ring 80 and the ball seat 90 constitute three rotating pairs. Horizontal, lateral and vertical rotation of the articulation connector is achieved.

About the transmission of force: The joint connector mainly transmits the tensile load, the compression load and the vertical load between the vehicles. The transmission path is as follows:

Tensile load: convex joint 10 → pin block 50 → kingpin 30 → concave joint 20;

Compression load: convex joint 10 → from plate 60 → wedge 70 → concave joint 20;

Vertical load: convex joint 10 → ball ring 80 → ball seat 90 → concave joint 20 .

It can be seen that the above joint connector has the following technical problems:

On the one hand, there are many fitting surfaces, and each mating surface needs regular lubrication. When the mating surface is severely worn, it is necessary to weld metal gaskets to compensate for wear or replace parts. That is to say, the joint connector has a short maintenance period and high frequency. .

More importantly, the wedge is used to compensate for the wear gap. After the wear occurs, the wedge will automatically fall to compensate for the gap. When the wedge position is lowered, it will affect the flexibility of the joint connector and cause the fault.

Therefore, it is urgent to provide a joint connector for a railway vehicle in order to avoid the inflexibility of the rotation due to the clearance compensation.

Summary of the invention

The present invention provides a joint connector for a railway vehicle that does not affect the flexibility of rotation while achieving longitudinal clearance compensation.

According to the present invention, a joint connector for a railway vehicle includes a concave joint having a mounting cavity and a convex joint hinged in the mounting cavity at a rear end, and a slave plate is provided therebetween, and a front end of the slave plate is provided The surface and the rear end surface of the convex joint are spherical surfaces that cooperate with each other, and further include an elastic member, the front end of the elastic member being capable of abutting against the slave plate, and the rear end being capable of abutting with the concave joint to pass through the front and rear sides thereof The deformation of the direction compensates for the longitudinal gap.

In the joint connector of the present invention, a slave plate is disposed between the convex joint and the concave joint, and an elastic member is disposed between the plate and the concave joint. When the compressive load is transmitted, the transmission direction of the compressive force is a convex joint-slave plate. - Elastic member - Concave joint, on the one hand, does not require the joint of the convex joint and the concave joint to bear the load during the whole force transmission, thereby prolonging the service life of the hinge and improving the reliability of the use of the hinge. On the other hand, the elastic member compensates the longitudinal gap by elastic deformation, and the deformation amount thereof is variable. Then, even if the longitudinal gap increases due to wear or the like during use, the deformation amount of the elastic member changes accordingly. In order to compensate for different longitudinal clearances, thereby ensuring the reliability of load transmission; more importantly, since the deformation of the elastic member changes with the working condition of the joint connector, it has "recession" and can be articulated. The certain degree of freedom of rotation of the device does not affect the flexibility of rotation compared to the prior art using wedges for backlash compensation. At the same time, the elastic member can produce both compression and tensile deformation, and the elastic member has "retractability", and if necessary, the elastic member can compensate for the longitudinal gap during the tensile load transfer. Furthermore, the elastic member can provide a certain buffering effect during the transmission of the tensile load or the compressive load to reduce the stress concentration.

The elastic member may be disposed between the slave plate and the concave joint in a compressed state, and an initial compressive force is within a predetermined range.

The elastic member may include a mounting box and an elastic body housed in the mounting box, the mounting box has a hollow box shape with an open front end, and the slave board is blocked at a front end of the mounting box; the mounting The cartridge is built into the rear end of the mounting cavity and is capable of abutting against the rear end surface of the mounting cavity.

The slave plate may include a body portion and a protrusion formed to protrude rearward from the body portion, the body portion extending from top to bottom and blocking a front end opening of the mounting box, the protrusion being front to back Extending and extending into the hollow cavity of the mounting box; the elastomer being compressible between the mounting box and the body portion.

The joint connector may further include a traction pin extending from top to bottom and a radial joint, the convex joint and the concave joint being hinged by the traction pin; the inner side of the radial joint bearing The ring cooperates with the traction pin, and the outer ring cooperates with the convex joint.

The joint connector may further include a mounting sleeve fixedly disposed at a rear end of the convex joint, and an inner wall of the mounting sleeve is engaged with an outer ring of the radial joint bearing.

The mounting sleeve may be in a hollow cylindrical shape penetrating up and down, and fixedly mounted on an upper portion of the convex joint; a lower portion of the mounting sleeve may protrude inward to form a mounting portion that cooperates with the radial spherical joint bearing.

The joint connector may further include a thrust joint bearing mounted at a bottom of the mounting cavity and supporting a bottom surface of the convex joint with a top surface thereof.

A self-lubricating wear-resistant material may be adhered between the inner ring and the outer ring of the radial joint bearing, between the inner ring and the outer ring of the thrust joint bearing, and the mating surface of the slave plate and the convex joint.

The present invention also provides a railway vehicle comprising a plurality of car bodies, the adjacent car bodies being connected by a joint connector, the joint connector being the joint connector of any of the above.

Since the railway vehicle of the present invention includes the joint connector according to any of the above, the technical effects produced by any of the above joint connectors are applicable to the railway vehicle of the present invention, and will not be described herein.

DRAWINGS

1 is a typical joint connector structure in the prior art;

2 is a schematic cross-sectional view showing a joint connector of the present invention in a specific embodiment;

3 is a half cross-sectional view showing the joint connector of the present invention in a plan view in a specific embodiment;

4 is a schematic cross-sectional view showing the elastic member of the joint connector of the present invention in a specific embodiment;

Figure 5 is a side elevational view of a female joint of a joint connector of the present invention in a particular embodiment.

In Figure 1:

Projection joint 10, concave joint 20, mounting cavity 201, kingpin 30, center pin 40, pin block 50, slave plate 60, wedge 70, ball ring 80, ball seat 90;

In Figure 2-5:

Concave joint 1, mounting cavity 11, assembly process hole 12, convex joint 2, slave plate 3, main body portion 31, protruding portion 32, elastic member 4, mounting box 41, elastic body 42, traction pin 5, pin cover 51, handle 52, the plug 53, the radial joint bearing 6, the mounting sleeve 7, the thrust joint bearing 8.

detailed description

The present invention provides a joint connector that does not affect the flexibility of rotation while achieving longitudinal clearance compensation.

The joint connector according to the present invention belongs to a vehicle connecting device for connecting front and rear adjacent vehicle bodies and transmitting a force including a tensile load, a compressive load, and a vertical load, and the tensile load and The compressive load acts on the front and rear directions.

The front, back, top, bottom, left and right directions described in this paper are all referenced to the railway vehicle. The direction parallel to the direction of travel of the railway vehicle is longitudinal. In the longitudinal direction, the direction in which the direction of travel is directed is the front, opposite to the direction of travel. In the plane parallel to the running surface of the railway vehicle, the direction perpendicular to the longitudinal direction is transverse, in the lateral direction, in the direction of travel, in the left hand The direction of the side is left, the direction on the right hand side is right; the direction perpendicular to the running track surface of the railway vehicle is vertical, in the vertical direction, the direction near the track surface is downward, and the direction away from the track surface is upward.

The joint connector of the present invention will be specifically described below in conjunction with the accompanying drawings, so that those skilled in the art can accurately understand the technical solutions of the present invention.

As shown in FIG. 2 and FIG. 3, the present invention provides a joint connector for a railway vehicle, comprising a convex joint 2 and a concave joint 1, the concave joint 1 having a mounting cavity 11 with the convex joint 2 in front of the concave joint 1 For example, the rear end of the convex joint 2 forms a connecting end and can protrude into the mounting cavity 11 of the concave joint 1. At this time, the convex joint 2 is hinged with the concave joint 1 at the rear end thereof to achieve the force transmission and maintain The ability of a railway vehicle to rotate during driving. Meanwhile, the hinge between the convex joint 2 and the concave joint 1 may be a ball joint, or there may be at least a half spherical contact surface, thereby giving the vehicle a certain degree of rotational freedom in all directions to satisfy the normal running of the vehicle. demand.

The joint connector of the present invention is further provided with a slave plate 3 between the convex joint 2 and the concave joint 1, and the front end surface of the slave plate 3 is matched with the rear end surface of the convex joint 2, and the spherical joint can be specifically used here; the spherical surface fit On the one hand, the transmission requirements of the longitudinal and vertical forces can be satisfied, and on the other hand, the convex joint 2 can be rotated relative to the plate 3, that is, the convex joint 2 and the plate 3 form a rotating pair, thereby ensuring the vehicle in the horizontal direction and the side. The degree of freedom of rotation in the direction of the vertical direction prevents jamming. The horizontal rotation means that the plane rotates in a plane parallel to the track surface, and the plane parallel to the track surface is a horizontal plane, and then swings left and right in the horizontal plane to be the horizontal rotation described herein; the vertical rotation That is, it is rotated up and down; the lateral rotation refers to rotation in a plane formed by tilting the horizontal plane to the left and right.

The present invention further includes an elastic member 4 which adopts the above structure, since the plate 3 is disposed between the convex joint 2 and the concave joint 1, and the front end surface of the plate 3 is engaged with the rear end surface of the convex joint 2, the rear end surface of the plate 3 is The concave joint 1 faces, in particular, the inner wall of the rear end of the mounting cavity 11 of the concave joint 1; at this time, the elastic member 4 can be disposed between the slave plate 3 and the concave joint 1, in particular, the front end of the elastic member 4 can be abutted Connected to the rear end of the plate 3, the rear end can abut against the rear end inner wall of the mounting cavity 11 of the female joint 1, as shown in Figs.

It should be noted that the reference to the spherical surface in this paper may be part of the surface of a sphere, not the entire spherical surface, or the entire spherical surface. In other words, the spherical surface described herein is a spherical surface in a broad sense, which may be the entire spherical surface, or may be only a part of the entire spherical surface, as long as the spherical surface is arranged to satisfy the convex joint 2 and the concave joint 1 in the horizontal direction, the lateral direction and the vertical direction. The rotation needs can be.

With the above structure, if the joint joint 2 and the concave joint 1 are relatively displaced in the longitudinal direction during the force transmission, the longitudinal position between the plate 3 and the concave joint 1 also changes, and accordingly, The elastic member 4 is deformed, and the deformation of the elastic member 4 can compensate for the longitudinal gap, ensuring the reliability of the force transmission.

In detail, when subjected to a compressive load, the convex joint 2 is pressed backward from the plate 3, and by pressing the elastic member 4 from the plate 3, the elastic member 4 is subjected to compression deformation, and transmits the compressive force to the concave joint 1; During use, if the convex joint 2 and the mating surface of the plate 3 are worn, or the joint joint 2 and the other joint faces of the concave joint 1 are worn to cause an increase in the longitudinal gap, during the transfer of the compressive force, the plate 3 is obtained. The amount of displacement of the backward movement will increase accordingly, at this time, the compression deformation of the elastic member 4 will increase accordingly, but since the elastic member 4 will simultaneously push the concave joint 1 backward, the compression force can be effectively transmitted to the concave joint 1; That is to say, the longitudinal gap of the change can be effectively compensated by the arrangement of the elastic member 4 while ensuring the reliability of the force transmission.

When subjected to a tensile load, the convex joint 2 will move forward, and then act on the concave joint 1 through a joint member such as a joint bearing and a pin; at this time, the compression deformation of the elastic member 4 can be partially or completely restored to advance The plate 3 is pushed so that the plate 3 is always attached to the convex joint 2, and the connection rigidity of the male joint 2 and the concave joint 1 in the longitudinal direction is ensured to avoid the longitudinal gap. That is, the elastic member 4 of the present invention is also capable of achieving clearance compensation during tensile load transfer.

It can be seen that the elastic member 4 of the present invention can adjust the compensation amount as needed according to the prior art, and the compensation amount can adapt to different changes in the force transmission process, and is suitable for tensile load and compression. The gap compensation of the load transfer; more importantly, since the elastic member 4 has a certain concession property, the rigidity constraint from the plate 3 and the convex joint 2 is not generated as compared with the rigid wedge, thereby ensuring the joint connector The flexibility of rotation; in addition, the elastic member 4 can also buffer the tensile load or the compressive load, reducing the impact load and avoiding Stress concentration.

Wherein, the elastic member 4 can be disposed between the plate 3 and the concave joint 1 in a compressed state, that is, in the initial state, the elastic member 4 is in a compressed state, and can be compressed between the plate 3 and the concave joint 1, specifically The front end of the elastic member 4 may abut against the rear end surface of the plate 3, and the rear end abuts against the rear end inner wall of the mounting cavity 11, so that the elastic member 4 is compression-fixed between the slave plate 3 and the concave joint 1.

At this time, the initial compressive force of the elastic member 4 should be within a predetermined range, apparently not exceeding the maximum compressive force that the elastic member 4 can withstand, for example, the initial compressive force of the elastic member 4 can be less than 1/4 of its maximum compressive force. Here, only the pre-compression force of the elastic member 4 is given to have a certain elongation deformation space, so that the elastic member 4 can be pushed forward from the plate 3 during the tensile load transfer to better compensate the tensile load. The longitudinal gap created when passing.

It can be understood that the elastic member 4 may not be in a compressed state in the initial state. For example, in the initial state, the elastic member 4 may also be in a free state, and only a corresponding deformation is generated during the force transmission to compensate for the gap. Generally, whether or not the elastic member 4 is in an initial compression state, in the operating state, a preload force of 20 to 30 kN can be basically provided to effectively compensate the longitudinal gap.

As shown in FIG. 4, the elastic member 4 of the present invention may include a mounting box 41 and an elastic body 42. The mounting box 41 may be provided in a hollow box shape with an open front end, and then the elastic body 42 is fitted in the mounting box 41; The barrier is blocked at the opening of the front end of the mounting case 41, and the opening of the mounting case 41 can be blocked to define the elastic body 42 in the mounting case 41. At this time, the mounting box 41 may be built in the mounting cavity 11 of the female joint 1, specifically at the rear end of the mounting cavity 11, and can abut against the rear end surface of the mounting cavity 11, as shown in FIGS. 2 and 3.

With the above structure, the elastic member 4 includes the mounting case 41, and then the elastic body 42 is fitted in the mounting case 41. The mounting case 41 serves as a rigid member, and the elastic body 42 serves as a flexible member. During the transfer of the compressive load, the convex joint 2 is abutted. The top compresses the elastic body 42 from the plate 3 so as to compensate the longitudinal gap by the deformation of the elastic body 42; meanwhile, when the elastic body 42 is compressed to a certain extent, the slave plate 3 can come into contact with the front end wall of the mounting case 41, and then backward. The mounting box 41 is abutted so that the mounting box 41 abuts against the inner wall of the rear end of the mounting cavity 11 of the female joint 1, and is pressed by the mounting box 41. The contraction load is transmitted to the concave joint 1 to ensure the reliability of the force transmission.

The elastic body 42 may be any object capable of generating elastic deformation, for example, an elastic cement core, a rubberized steel plate, a disc spring mechanism, and the like. In the technical solution of the present invention, only a spring is taken as an example for description. As shown in FIG. 4, the spring may be compressed backward from the rear end of the plate 3, and the front end may have a spherical surface that cooperates with the convex joint 2, so that the elastic body 42 is assembled with the slave plate 3, the convex joint 2 and the concave joint 1 to form FIG. 2 and The joint connector shown in Figure 3.

More specifically, the cross section of the plate 3 may be set to a T-like structure, and may specifically include a main body portion 31 and a protruding portion 32 formed to protrude rearward from the main body portion 31, as shown in FIG. 4; Extending upwardly and downwardly, and blocking the opening at the front end of the mounting box 41; the protruding portion 32 extends from the front to the rear and can protrude into the hollow cavity of the mounting box 41 to compress the elastic body 42, as shown in FIG. The elastic body 42 is compressed in the front and rear spaces defined by the mounting case 41 and the main body portion 31. In detail, when a spring is used as the elastic body 42, the protruding portion 32 of the plate 3 can be inserted into the spiral cavity of the spring, and the main body portion 31 abuts against the spring; at this time, the protruding portion 32 of the plate 3 can be opposed to the spring. A certain constraint is made to ensure the reliability of the deformation of the spring in the front-rear direction, to prevent the spring from being deformed in other directions, and the effective contact with the spring from the main body portion 31 of the plate 3 ensures reliable contact with the spring. Sexually, effectively compensate for longitudinal gaps.

On the basis of the above, in the joint connector of the present invention, the engagement of the concave joint 1 and the convex joint 2 can be realized by the cooperation of the traction pin 5 and the radial joint bearing 6. As shown in FIGS. 2 and 3, the traction pin 5 can be extended from top to bottom, and the convex joint 2 and the concave joint 1 are hinged by the traction pin 5; meanwhile, the inner ring of the radial joint bearing 6 can be engaged with the traction pin 5. The outer ring can be engaged with the convex joint 2, and the traction pin 5 protrudes from the inner ring of the radial joint bearing 6 and penetrates the convex joint 2, and then projects into the top wall and the bottom wall of the mounting cavity 11 of the concave joint 1 to realize the concave The articulation of the joint 1 and the convex joint 2. The traction pin 5 is matched with the radial joint bearing 6 . On the one hand, the traction pin 5 restrains the rotation of the convex joint 2 and the concave joint 1 in the vertical direction to a certain extent, thereby improving the connection reliability; The radial joint bearing 6 realizes the relative rotation of the convex joint 2 and the concave joint 1, and realizes flexible rotation in the horizontal, lateral and vertical directions to meet the normal running demand of the vehicle.

Wherein, the traction pin 5 can also be positioned by the pin cover composition, the pin cover comprises a pin cover 51, a handle 52 and a latch 53, all of which cooperate together to realize the installation and positioning of the traction pin 5, as shown in FIG. 2 and FIG. 3 is shown.

It can be understood that the structure of the radial joint bearing 6 can also be omitted by those skilled in the art. For example, the structure as described in the background art can be used, and the pin shaft block is used to replace the radial joint bearing 6 of the present application. The pin block is disposed at the rear end of the convex joint 2, and the front end surface of the pin block is a circular arc surface that can be engaged with the traction pin 5, and the rear end surface is a hemispherical surface that can be engaged with the convex joint 2; at the same time, the traction pin The front end of the 5 can be engaged with the convex joint 2 to ensure connection reliability. For the setting of the specific structure, reference may be made to the structure in the background art, and details are not described herein again.

To achieve the installation of the radial joint bearing 6, the invention may also include a mounting sleeve 7, as shown in Figures 2 and 3. The mounting sleeve 7 can be fixed to the rear end of the male joint 2, and the inner wall of the mounting sleeve 7 can cooperate with the outer ring of the radial joint bearing 6 to achieve the connection of the radial joint bearing 6 with the male joint 2.

The mounting sleeve 7 is of various forms and can be fixed in the convex joint 2 by means of welding or the like. In detail, the rear end of the convex joint 2 may have a hollow cavity, and the mounting sleeve 7 may be built in the hollow cavity of the convex joint 2, and then the radial joint bearing 6 is fixed by the mounting sleeve 7 to form a convex joint composition. Then, the traction pin 5 is formed to penetrate the convex joint and is connected to the concave joint 1.

Furthermore, the mounting sleeve 7 can be specifically configured as a hollow cylindrical structure that penetrates up and down, and then the mounting sleeve 7 can be fixed to the upper portion of the rear end of the convex joint 2; meanwhile, the lower portion of the mounting sleeve 7 can protrude inward to form a mounting portion, the mounting The portion can cooperate with the outer ring of the radial joint bearing 6, as shown in Figures 2 and 3. That is to say, in the vertical section of the mounting sleeve 7, both side walls can be arranged as stepped surfaces, specifically two-stage stepped structures formed from top to bottom inwardly protruding; The center of the reference is in the front-rear direction, the direction near the center of the mounting sleeve 7 is inside, and the direction away from the center of the mounting sleeve 7 is outside. When the mounting sleeve 7 has a stepped surface, the inner diameter of the upper cavity of the mounting sleeve 7 is larger than the inner diameter of the lower cavity, and the upper space is larger, and the upper portion of the mounting sleeve 7 can be welded to the convex joint 2 to improve assembly convenience.

The upper edge of the mounting sleeve 7 can also extend to both sides to form a convex edge, thereby improving the convex edge and the convex edge The welding overlap amount of the section 2 is to improve the welding reliability of the mounting sleeve 7. When the convex joint 2 has a hollow cavity penetrating from top to bottom, the length of the mounting sleeve 7 in the up and down direction may be smaller than that of the convex joint 2, so that the mounting sleeve 7 has a lower portion substantially in the middle of the convex joint 2, and thus the centripetal joint The bearing 6 is effectively restrained while ensuring that the inner wall of the mounting sleeve 7 and the outer ring of the radial joint bearing 6 are relatively rotatable to form a rotating pair.

The arrangement of the mounting sleeve 7 realizes the connection of the radial joint bearing 6 and the convex joint 2. When the radial joint bearing 6 needs to be replaced, only the mounting sleeve 7 can be broken, and the centripetal joint can be replaced without replacing the entire convex joint 2. The removal of the bearing 6 improves the convenience of inspection and replacement.

Further, the present invention may further include a thrust joint bearing 8, as shown in FIGS. 2 and 3, the thrust joint bearing 8 may be specifically mounted at the bottom of the mounting cavity 11 of the concave joint 1, and may be supported by the top surface of the convex joint 2 Bottom surface. The thrust joint bearing 8 may specifically adopt a self-aligning spherical seat type, including an inner ring and an outer ring, wherein the outer ring and the inner ring have mutually matching spherical surfaces, and the two form a rotating pair; the inner ring may be installed above the outer ring. As shown in FIG. 2 and FIG. 3, specifically, the top surface of the inner ring supports the bottom surface of the convex joint 2, and the bottom surface of the outer ring presses the bottom wall of the mounting cavity 11 of the concave joint 1 so that the convex joint 2 passes the thrust joint bearing. 8 transmits the vertical force to the concave joint 1.

It can be understood that the transmission of the vertical force by the thrust joint bearing 8 is only a specific embodiment, and those skilled in the art can realize the transmission of the vertical force by other structures. For example, the transfer of the vertical force can be realized by the structure of the ball ring and the ball seat described in the background art, that is, a ball seat having an inner spherical surface, and a ball ring having an outer spherical surface, and then a top of the ball ring can be disposed. The bottom surface of the surface supporting convex joint 2 is mounted in the mounting cavity 11 of the concave joint 1 by a ball seat; at this time, since the convex joint 2 is in contact with the ball ring, the vertical force can be transmitted, and the ball ring and the ball seat are matched. The rotating surface of the spherical surface ensures the reliability of rotation. Alternatively, those skilled in the art can replace the thrust joint bearing 8 here with other bearings capable of withstanding the axial force to achieve the transmission of the vertical force, and the contact surface of the bearing and the convex joint 2 and/or the bearing and the concave joint. The contact surface of the bottom wall of the mounting cavity 11 of 1 is modified to ensure rotational reliability.

It should be understood by those skilled in the art that when the thrust joint bearing 8 is used to realize the transmission of the vertical force, the rotation reliability can be effectively taken into consideration, and the bottom of the convex joint 2 can be prevented from being locked; The thrust joint bearing 8 is a standard accessory, and can be selected by a person skilled in the art according to needs, and the assembly and replacement are simple and convenient, and the self-processing or additional customization is not required, and the versatility is strong compared with the form in which the ball ring and the ball seat are matched.

When the above structure is adopted, the working principle of the joint connector of the present application is as follows:

Regarding the rotation function, three rotation pairs are formed between the convex joint 2 and the slave plate 3, between the inner ring and the outer ring of the radial joint bearing 6, and between the inner ring and the outer ring of the thrust joint bearing 8, thereby realizing Horizontal, lateral, and vertical rotation of the joint connector.

About the transmission of force:

Tensile load: convex joint 2 → radial joint bearing 6 → traction pin 5 → concave joint 1;

Compression load: convex joint 2 → from plate 3 → elastic member 4 → concave joint 1;

Vertical load: convex joint 2 → inner ring of thrust joint bearing 8 → outer ring of thrust joint bearing 8 → concave joint 1.

It can be seen from the transmission path of the force that the rational design of the convex joint 2, the concave joint 1, the elastic member 4, and the traction pin 5 makes the radial joint bearing 6 and the traction pin 5 only force when transmitting the tensile load. It is beneficial to improve the reliability and service life of the radial joint bearing 6 and the traction pin 5; moreover, during the transmission of the compression load and the vertical load, different forces are transmitted through different transmission paths according to different transmission paths. This improves the reliability and service life of the joint connector.

Further, as shown in FIGS. 2 and 3, in order to provide a certain range of rotation between adjacent vehicle bodies, the joint connector of the present invention employs a radial joint bearing 6 and a thrust joint bearing 8, which is a radial joint bearing 6 The inner and outer rings, the inner and outer rings of the thrust joint bearing 8, the rear end face of the male joint 2, and the front end face of the plate 3 together constitute three pairs of rotating pairs.

On this basis, a self-lubricating wear-resistant material may be adhered between the inner ring and the outer ring of the radial joint bearing 6 and between the inner ring and the outer ring of the thrust joint bearing 8; or, the thrust joint bearing 8 and the direction The heart joint bearing 6 can be a self-lubricating bearing. In detail, a self-lubricating wear resistant material of a polytetrafluoroethylene material may be attached, so that the thrust joint bearing 8 and the radial joint bearing 6 have self-lubricating and maintenance-free characteristics.

Similarly, the mating surface of the plate 3 and the convex joint 2 of the present invention can also be attached to the self-lubricating wear-resistant surface. material. For example, a self-lubricating and wear-resistant material may be attached to a portion of the front end surface of the plate 3 that engages with the convex joint 2, and the material should have a low friction coefficient to the steel and a self-lubricating property, and the existing lubricating material may be selected. The above structure is not listed here; the above structure makes the rear end surface of the convex joint 2 and the front end surface of the plate 3 form a low friction rotating pair, thereby reducing wear, prolonging service life, achieving self-lubrication, reducing maintenance frequency and even Achieve maintenance-free.

It can be seen that the joint connector of the invention achieves self-lubricating and maintenance-free by using self-lubricating components (thrust joint bearing 8 and radial joint bearing 6) and a self-lubricating wear-resistant material at the mating surface of the rotating pair, which is beneficial to the railway. Long-term maintenance-free operation of the vehicle.

With further reference to FIG. 5, the concave joint 1 of the present invention may be provided with an assembly process hole 12, and the assembly process hole 12 may be disposed at the front end of the slave plate 3, specifically at a position corresponding to the front end face of the slave plate 3, so as to be The elastic member 4 is compressed to improve the convenience of assembly.

The joint connector of the present invention can be assembled by the following steps: 1) pressing the radial joint bearing 6 into the hole of the convex joint 2, and welding the mounting sleeve 7 to the convex joint 2 so as to be directed by the mounting sleeve 7. The cardiac joint bearing 6 is positioned to form a convex joint; 2) the mounting box 41, the elastic body 42 and the plate 3 are fitted into the mounting cavity 11 of the concave joint 1, as shown in Fig. 2, and then the concave joint 1 is inserted with a crowbar In the assembly process hole 12, the slave plate 3 is pushed backward to realize the pre-compression of the elastic member 4 by compressing the elastic body 42 from the plate 3; 3) pushing the convex joint 2 into the mounting cavity 11 of the concave joint 1, and Tightly tighten from the plate 3, then install the traction pin 5, and finally pull out the crowbar.

It can be seen that the joint connector of the present invention only needs to use a simple cooker such as a crowbar when assembling and disassembling, does not need special tooling and equipment, and does not need to carry out operations such as lifting work, and the whole assembly process is simple and easy. In other words, the joint attachment device of the present invention facilitates the advantages of assembly disassembly and maintenance.

The present invention also provides a railway vehicle comprising a plurality of car bodies, wherein adjacent car bodies are connected by the joint connector. Due to the variety of railway vehicles, various types of railway vehicles contain many components, and the structure of each component is complicated. Only the joint connectors are described here. For other unknowns, please refer to the prior art.

The railway vehicle and its joint connector provided by the present invention are described in detail above. The principle and implementation of the present invention are described in the following by applying specific examples. The description of the examples is only intended to aid in understanding the core idea of the invention. It should be noted that those skilled in the art can make various modifications and changes to the present invention without departing from the spirit and scope of the invention.

Claims (10)

A joint connector for a railway vehicle, comprising a concave joint (1) having a mounting cavity (11) and a convex joint (2) hinged in the mounting cavity (11) at a rear end with a slave plate therebetween (3) The front end surface of the slave plate (3) and the rear end surface of the convex joint (2) are spherical surfaces that cooperate with each other, and further include an elastic member (4), the elastic member (4) The front end can abut the slave plate (3), and the rear end can abut against the concave joint (1) to compensate for the longitudinal gap by deformation in the front-rear direction. The joint connector according to claim 1, wherein said elastic member (4) is disposed between said slave plate (3) and said concave joint (1) in a compressed state, and an initial compressive force is Scheduled range. The joint connector according to claim 1, wherein said elastic member (4) comprises a mounting case (41) and an elastic body (42) fitted in said mounting case (41), said mounting case (41) in the form of a hollow box having an open front end, the slave plate (3) being blocked at the front end of the mounting case (41); the mounting case (41) being built in the rear of the mounting cavity (11) The end is abuttable with the rear end surface of the mounting cavity (11). The joint connector according to claim 3, wherein the slave plate (3) includes a body portion (31) and a protrusion (32) formed to protrude rearward from the body portion (31), The main body portion (31) extends from top to bottom and blocks the front end opening of the mounting box (41), the protruding portion (32) extending from the front to the rear and extending into the hollow cavity of the mounting box (41) The elastomer (42) can be compressed between the mounting box (41) and the body portion (31). A joint connector according to any one of claims 1 to 4, further comprising a traction pin (5) and a radial joint bearing (6), the traction pin (5) extending from top to bottom, The convex joint (2) and the concave joint (1) are hinged by the traction pin (5); the inner ring of the radial joint bearing (6) is engaged with the traction pin (5), and the outer ring is Said convex joint (2) fit. The joint connector according to claim 5, further comprising a mounting sleeve (7), the mounting sleeve (7) being fixedly disposed at a rear end of the convex joint (2), the mounting sleeve (7) The inner wall of the bearing cooperates with the outer ring of the radial joint bearing (6). The joint connector according to claim 6, wherein the mounting sleeve (7) has a hollow cylindrical shape penetrating vertically, and is fixedly mounted on an upper portion of the convex joint (2); the mounting sleeve (7) The lower portion protrudes inwardly to form a mounting portion that cooperates with the radial joint bearing (6). The joint connector according to claim 5, further comprising a thrust joint bearing (8) mounted at a bottom of said mounting cavity (11) and supported by a top surface thereof The bottom surface of the convex joint (2). The joint connector according to claim 7, wherein between the inner ring and the outer ring of the radial joint bearing (6), between the inner ring and the outer ring of the thrust joint bearing (8), and A self-lubricating wear resistant material is attached to the mating surface of the plate (3) and the convex joint (2). A railway vehicle comprising a plurality of car bodies, wherein the adjacent car bodies are connected by a joint connector, wherein the joint connector is the joint connection according to any one of claims 1-9 Device.

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