CN112977529A

CN112977529A - Coupler yoke, coupler yoke and vehicle

Info

Publication number: CN112977529A
Application number: CN202110374273.2A
Authority: CN
Inventors: 王晓龙
Original assignee: CRRC Qiqihar Rolling Stock Co Ltd
Current assignee: CRRC Qiqihar Rolling Stock Co Ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-06-18
Anticipated expiration: 2041-04-07
Also published as: CN112977529B

Abstract

The invention provides a coupler yoke, a coupler buffering device and a vehicle, wherein the coupler yoke is provided with a first end and a second end which are oppositely arranged, the first end of the coupler yoke is provided with a mounting hole, the second end of the coupler yoke is provided with a coupler connecting part, the coupler yoke is provided with a mounting cavity positioned between the mounting hole and the coupler connecting part, the mounting hole is used for accommodating a first buffering piece, one end of the first buffering piece is movably arranged in the mounting hole in a penetrating manner, and the mounting cavity is used for accommodating a second buffering piece. Through the technical scheme provided by the application, the problem that the coupler yoke in the related technology cannot meet the use requirement can be solved.

Description

Coupler yoke, coupler yoke and vehicle

Technical Field

The invention relates to the technical field of railway vehicles, in particular to a coupler yoke, a coupler yoke buffer device and a vehicle.

Background

At present, the coupler yoke adopted by the traditional railway freight car coupler buffering device in China is of a traditional AAR standard coupler yoke structure, the coupler buffering device adopts a single buffer to absorb longitudinal impact, the buffer is installed inside the coupler yoke, and the coupler yoke is longer in design and occupies a larger space.

The coupler tail frame adopted by the coupler buffer device of the railway freight car in China mainly comprises three series products of 13 types, 16 types and 17 types. The structural characteristics of the existing coupler yoke are described by taking the 13-type as an example. The overall structure of the coupler yoke is shown in fig. 1 and fig. 2, the existing coupler yoke is of a frame structure, frame plates 1 are arranged on the upper side and the lower side, a buffer is mounted in the middle hollow part, the occupied space is large, and the section of each of the upper frame plate 1 and the lower frame plate 1 cannot be designed to be large. Due to the structural limitation of the coupler yoke, the overall structural strength of the coupler yoke is limited to be continuously improved. The coupler yoke has large volume and high manufacturing process difficulty. The current application situation shows that fatigue cracks often appear at the tail bent angle 2 part of the coupler yoke because of bearing larger stress action for a long time, the risk of serious accidents of train separation caused by the breakage of the coupler yoke exists, and the running of the train has potential safety hazards.

Therefore, in the related art, the application space and the structural form of the hook buffer device are limited by the structure of the hook tail frame, and the problem that the hook tail frame cannot meet the use requirement exists.

Disclosure of Invention

The invention provides a coupler yoke, a coupler yoke buffer device and a vehicle, and aims to solve the problem that the coupler yoke in the related technology cannot meet the use requirement.

According to one aspect of the invention, a yoke is provided, the yoke having a first end and a second end disposed opposite to each other, the first end of the yoke having a mounting hole, the second end of the yoke having a coupler connecting portion, the yoke having a mounting cavity between the mounting hole and the coupler connecting portion, the mounting hole for receiving a first buffer member, one end of the first buffer member movably disposed through the mounting hole, the mounting cavity for receiving a second buffer member.

Further, the coupler yoke comprises a frame body and a barrel body which are connected with each other, the barrel body is located at one end of the frame body, and the mounting hole is located inside the barrel body.

Further, the barrel comprises an annular barrel plate and an end plate which are connected with each other, and the inner wall of the annular barrel plate forms the wall of the mounting hole.

Further, the framework and the end plate jointly enclose a mounting cavity, and one end of the second buffer piece is attached to the end plate.

Further, the cross-sectional shape of the frame body is rectangular, the cross-sectional shape of the cylinder body is circular, and the axis of the cylinder body extends along the length direction of the frame body.

Further, the coupler tail frame further comprises a reinforcing structure, and the reinforcing structure is arranged on the barrel.

Further, the reinforcing structure comprises an annular groove, the annular groove is arranged on the inner wall of the annular cylinder plate along the circumferential direction of the cylinder body, and the annular groove is located at the intersection of the annular cylinder plate and the end plate.

Further, the frame body comprises two side plates arranged at intervals, and the cylinder body is arranged between the two side plates.

Furthermore, the frame body also comprises a connecting plate, one end of the connecting plate is connected with one side plate, and the other end of the connecting plate is connected with the other side plate; and/or the coupler connecting part is a connecting hole which is arranged on the side plate.

According to another aspect of the present invention, there is provided a hook and relief device comprising: the coupler tail frame is the coupler tail frame provided by the method; the buffer assembly comprises a first buffer piece and a second buffer piece; the slave plate is positioned in the mounting cavity of the coupler tail frame, and a second buffer piece is attached to one end of the slave plate; and the coupler is connected with the coupler connecting part of the coupler yoke, and the other end of the slave plate is abutted against the coupler.

Further, the first buffer member is a columnar buffer, and the second buffer member is a pie-shaped buffer.

According to a further aspect of the present invention, there is provided a vehicle comprising a bump stop provided as described above.

By applying the technical scheme of the invention, the first end of the coupler yoke is provided with the mounting hole, the second end of the coupler yoke is provided with the coupler connecting part, and the coupler connecting part is used for being connected with a coupler. With the one end mobilizable of first bolster wearing to locate the mounting hole, set up the installation intracavity between mounting hole and coupling connecting portion with the second bolster, utilize first bolster and second bolster to cushion simultaneously, can promote the buffering effect of coupler and delay the device. By adopting the structure, the coupler tail frame can meet the use requirement, and the coupler tail frame can enable the coupler and buffer device to have larger application space and more structural forms.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a coupler yoke provided in the related art;

FIG. 2 is a schematic structural diagram of another view of a coupler yoke provided in the related art;

FIG. 3 is a schematic structural diagram of a coupler yoke according to an embodiment of the present invention;

FIG. 4 illustrates a cross-sectional view of a yoke provided in accordance with an embodiment of the present invention;

FIG. 5 illustrates a cross-sectional view of another perspective of a yoke provided in accordance with an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another view of a yoke according to an embodiment of the present invention;

fig. 7 shows a schematic structural diagram of a hooking and buffering device according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

1. a frame plate; 2. a tail bend angle; 11. mounting holes; 12. a coupler connecting portion; 121. connecting holes; 13. a mounting cavity; 14. a frame body; 141. a side plate; 142. a connecting plate; 15. a barrel; 151. an annular cylinder plate; 152. an end plate; 16. a reinforcing structure; 161. an annular groove; 17. a convex structure; 20. a first buffer member; 30. a second buffer member; 40. a slave plate; 50. a car coupler.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 3 to 7, an embodiment of the present invention provides a coupler yoke, the coupler yoke having a first end and a second end which are oppositely disposed, the first end of the coupler yoke having a mounting hole 11, the second end of the coupler yoke having a coupler connecting portion 12, and a coupler being connected to the coupler connecting portion 12 to connect the coupler to the coupler yoke. The coupler yoke has a mounting cavity 13 between the mounting hole 11 and the coupler connecting portion 12, the mounting hole 11 is used for accommodating a first buffer member 20, one end of the first buffer member 20 is movably arranged through the mounting hole 11, and the mounting cavity 13 is used for accommodating a second buffer member 30.

The coupler yoke provided by the embodiment is applied, the first buffer piece and the second buffer piece are used for buffering simultaneously, and the buffering effect of the coupler buffering device can be improved. By adopting the structure, the coupler tail frame can meet the use requirement, and the coupler tail frame can enable the coupler and buffer device to have larger application space and more structural forms.

It should be noted that the hitch device is arranged between the carriage and the carriage, or the hitch device is arranged between the headstock and the carriage. In this embodiment, the first cushion member is used for buffering in compression, and the second cushion member is used for buffering in compression and extension. The compression means that the carriage and the carriage or the head are close to each other, and the stretching means that the carriage and the carriage or the head are far away from each other.

Specifically, the cushioning direction of the first cushioning member 20 and the cushioning direction of the second cushioning member 30 are both arranged in the axial direction of the yoke.

As shown in fig. 3, the hook frame includes a frame body 14 and a cylinder body 15 connected to each other, the cylinder body 15 is located at one end of the frame body 14, and the mounting hole 11 is located inside the cylinder body 15. Through setting up barrel 15, utilize the hole of barrel 15 to form mounting hole 11, have simple structure, the advantage of the processing of being convenient for can reduce cost.

In other embodiments, the cylindrical body 15 may be provided as a semi-cylindrical shape as long as the first buffer member 20 can be restrained and guided by the inner wall of the cylindrical body 15.

Specifically, the cylinder 15 includes an annular cylinder plate 151 and an end plate 152 connected to each other, and an inner wall of the annular cylinder plate 151 forms a hole wall of the mounting hole 11. One end of the first buffer 20 movably penetrates the annular tube plate 151, and the end of the first buffer 20 is disposed corresponding to the end plate 152. During compression cushioning, the end of the first cushioning member 20 is placed in contact with the end plate 152. Also, the annular cylinder plate 151 plays a role of guiding and limiting in the compression of the first cushion member 20.

As shown in fig. 3, the frame 14 and the end plate 152 together define the mounting cavity 13, and one end of the second cushion 30 is attached to the end plate 152. Through setting up first bolster 20 to utilize installation cavity 13 to hold second bolster 30, satisfying under the prerequisite of buffering demand, can dwindle the volume of second bolster 30. The end plate 152 increases the contact area of the second cushion member 30, and reduces the probability of mutual dislocation between the second cushion member 30 and the yoke when load is transferred.

In the present embodiment, the cross-sectional shape of the frame 14 is rectangular, the cross-sectional shape of the cylindrical body 15 is circular, and the axis of the cylindrical body 15 extends in the longitudinal direction of the frame 14. The structure design that the frame body 14 of the coupler tail frame and the barrel 15 of the tail part are combined by a rectangle and a cylinder increases the width of the frame body 14, the structure improves the structural strength after the combination between the frame body and the tail part, reduces the structural stress of the part of the coupler tail frame in the load transfer process, and improves the service life of the coupler tail frame and the application safety and reliability, wherein the maximum theoretically calculated structural stress is 380MPa and is far lower than the yield limit 690MPa (E-grade steel) of the material under the action of bearing the maximum load (2250 kN). Under the action that a traditional coupler yoke (as shown in figure 1) can bear the maximum load (2250kN), the maximum structural stress of theoretical calculation is 680MPa, which is close to the yield limit of the material (690 MPa) (E-grade steel), the maximum stress is generated at a tail corner 2 (as shown in figure 1), and during the application process, the tail corner 2 often has cracks, breaks and other faults, so that serious potential safety hazards are brought to the running of a vehicle.

In this embodiment, the yoke further comprises a reinforcing structure 16, and the reinforcing structure 16 is disposed on the barrel 15. The load at the barrel 15 is concentrated, and the barrel 15 is reinforced by the reinforcing structure 16, so that the structural strength of the coupler yoke can be ensured.

It should be noted that the reinforcing structure 16 includes, but is not limited to, a reinforcing rib, a reinforcing boss, and the like.

Since one end of the first buffer 20 is movably disposed through the annular tube plate 151, if the reinforcing structure 16 is disposed inside the tube 15, it is necessary to ensure that the reinforcing structure 16 does not interfere with the movement of the first buffer 20.

In the present embodiment, the reinforcing structure 16 includes an annular groove 161, the annular groove 161 being provided on the inner wall of the annular cylinder plate 151 in the circumferential direction of the cylinder 15, the annular groove 161 being located at the intersection of the annular cylinder plate 151 and the end plate 152. With the above structure, stress concentration can be prevented by the annular groove 161, and the annular groove 161 does not interfere with the movement of the first cushion 20.

Specifically, the intersection of the annular cylindrical plate 151 and the end plate 152 of the coupler yoke belongs to the position where the stress of the whole coupler yoke is most concentrated, and by arranging the annular groove 161, the structural stress of the position is effectively reduced, and the service life of the coupler yoke is prolonged.

As shown in fig. 3, the frame 14 includes two side plates 141 spaced apart from each other, and the cylindrical body 15 is disposed between the two side plates 141. The main structure of the coupler yoke is formed by the two side plates 141 and the barrel body 15, and has the advantages of simple structure, low cost and convenience in processing.

Specifically, the frame 14 further includes a connecting plate 142, one end of the connecting plate 142 is connected to one of the side plates 141, and the other end of the connecting plate 142 is connected to the other side plate 141, so as to ensure the structural strength of the frame 14.

In the present embodiment, the coupling portion 12 is a coupling hole 121, and the coupling hole 121 is provided on the side plate 141. The pin column is inserted into the connecting hole 121 and connected with the coupler, so that the coupling of the coupler yoke and the coupler can be completed.

As shown in fig. 3 and 4, in order to secure the coupling strength of the hook frame, the thickness of the side plate 141 at the coupling hole 121 is greater than that of the remaining positions.

In this embodiment, the second end of the coupler yoke has the protruding structure 17, and the outer surface of the protruding structure 17 is a curved surface, so as to ensure that the second end of the coupler yoke has sufficient connection strength.

As shown in fig. 7, a further embodiment of the present invention provides a draft gear including a yoke, a damping member, a slave plate 40 and a coupler 50, the yoke being provided as described above.

The buffering assembly comprises a first buffering member 20 and a second buffering member 30, the slave plate 40 is located in the installation cavity 13 of the coupler yoke, the second buffering member 30 is attached to one end of the slave plate 40, the coupler 50 is connected with the coupler connecting portion 12 of the coupler yoke, and the other end of the slave plate 40 is abutted to the coupler 50.

In the present embodiment, the first buffer member 20 is a columnar buffer, and the second buffer member 30 is a pie-shaped buffer.

The coupler and draft gear is applied to railway wagons adopting traditional coupler and draft gears at home and abroad.

Yet another embodiment of the present invention provides a vehicle including the bail apparatus provided above. In this embodiment, the vehicle is a railway wagon.

The device provided by the embodiment has the following beneficial effects:

(1) the cylindrical barrel 15 is arranged at the tail of the frame body 14, so that the installation of the cake-shaped buffer and the cylindrical buffer is realized, and the stability of the matching between the buffer and the coupler tail frame in the load transfer process is improved.

(2) By adopting the structural design of combining the rectangle and the cylinder, the width of the side plate 141 is increased, the structural strength of the joint part of the side plate 141 and the tail part of the coupler yoke frame is improved, the structural stress of the part of the coupler yoke frame in the load transfer process is reduced, and the service life of the coupler yoke frame is prolonged.

(3) By arranging the annular groove 161, the structural stress of the stress concentration part of the end face matched with the columnar buffer is effectively reduced, and the service life of the coupler yoke is prolonged.

(4) The device does not influence the structure in the traditional vehicle draw beam and can be integrally exchanged and used with the traditional vehicle hooking and buffering device.

(5) The device has low manufacturing cost, convenient implementation and high cost performance.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. 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, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a coupler yoke, its characterized in that, the coupler yoke has relative first end and the second end that sets up, the first end of coupler yoke has mounting hole (11), the second end of coupler yoke has coupler connecting portion (12), the coupler yoke has and is located mounting hole (11) with installation cavity (13) between coupler connecting portion (12), mounting hole (11) are used for holding first bolster (20), the one end movably of first bolster (20) is worn to locate mounting hole (11), installation cavity (13) are used for holding second bolster (30).

2. The yoke as claimed in claim 1, characterized in that the yoke comprises a frame body (14) and a cylinder body (15) connected to each other, the cylinder body (15) being located at one end of the frame body (14), the mounting hole (11) being located inside the cylinder body (15).

3. The yoke as claimed in claim 2, characterized in that the cylinder (15) comprises an annular cylinder plate (151) and an end plate (152) connected to each other, the inner wall of the annular cylinder plate (151) forming the wall of the mounting hole (11).

4. The yoke as claimed in claim 3, wherein the frame body (14) and the end plate (152) together define the mounting cavity (13), and one end of the second buffer member (30) abuts against the end plate (152).

5. The yoke as claimed in any of claims 2 to 4, characterised in that the cross-sectional shape of the frame (14) is rectangular, the cross-sectional shape of the barrel (15) is circular, and the axis of the barrel (15) extends in the length direction of the frame (14).

6. A yoke as claimed in claim 3 or 4, characterized in that the yoke further comprises a reinforcing structure (16), the reinforcing structure (16) being provided to the barrel (15).

7. The yoke as claimed in claim 6, characterised in that the reinforcing structure (16) comprises an annular groove (161), the annular groove (161) being provided on the inner wall of the annular cylinder plate (151) in the circumferential direction of the cylinder (15), the annular groove (161) being located at the intersection of the annular cylinder plate (151) and the end plate (152).

8. The yoke as claimed in any one of claims 2 to 4, characterised in that the frame (14) comprises two spaced apart side plates (141), the cylinder (15) being disposed between the two side plates (141).

9. The yoke of claim 8,

the frame body (14) further comprises a connecting plate (142), one end of the connecting plate (142) is connected with one side plate (141), and the other end of the connecting plate (142) is connected with the other side plate (141); and/or the presence of a gas in the gas,

the coupler connecting portion (12) is a connecting hole (121), and the connecting hole (121) is formed in the side plate (141).

10. A hitch device, comprising:

a coupler yoke, the coupler yoke being as claimed in any one of claims 1 to 9;

a damping assembly comprising a first damping member (20) and a second damping member (30);

the slave plate (40) is positioned in the mounting cavity (13) of the coupler yoke, and the second buffer piece (30) is attached to one end of the slave plate (40);

and a coupler (50) connected to the coupler connecting portion (12) of the yoke, and the other end of the slave plate (40) is in contact with the coupler (50).

11. Hooking and cushioning device according to claim 10, characterized in that said first cushioning element (20) is a cylindrical cushion and said second cushioning element (30) is a pie cushion.

12. A vehicle, characterized in that it comprises a bump stop device according to claim 10.