CN210437198U

CN210437198U - Railway vehicle, car coupler and coupler knuckle

Info

Publication number: CN210437198U
Application number: CN201921377011.6U
Authority: CN
Inventors: 王岩; 崔英俊; 王长春; 于海龙; 金朋迪
Original assignee: CRRC Qiqihar Rolling Stock Co Ltd
Current assignee: CRRC Qiqihar Rolling Stock Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-05-01
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses a rail vehicle, coupling and coupler knuckle, wherein, this coupler knuckle includes head, afterbody and connects the two neck, the afterbody is equipped with and pulls the platform, pulls the platform down, the inner chamber wall of afterbody is in pull the platform on and/or pull the corresponding position of platform and be equipped with the depressed part down. By adopting the structure, the difference between the thickness of the coupler knuckle at the position provided with the upper traction table and/or the lower traction table and the adjacent position can be reduced, the smoothness of the flowing of molten steel and other metal liquid can be improved, the quality problems of shrinkage cavity, looseness and the like can be further avoided to a greater extent, and the product quality of the cast coupler knuckle can be ensured; meanwhile, because the thickness of the coupler knuckle at the upper and lower traction tables is reduced, the manufacturing consumable material of the coupler knuckle can be reduced, so that the manufacturing cost of the coupler knuckle is reduced, the weight of the coupler knuckle can be reduced, and the carrying and the installation of the coupler knuckle are facilitated.

Description

Railway vehicle, car coupler and coupler knuckle

Technical Field

The utility model relates to a railway vehicle technical field, concretely relates to railway vehicle, coupling and coupler knuckle.

Background

The coupler is one of the most basic parts of the railway vehicle, is arranged at two ends of the vehicle and is used for connecting each vehicle body of the train and transmitting longitudinal force of the train. The coupler has many types, but the most widely used coupler is a knuckle coupler, which means that the coupler contains a knuckle that can rotate around a knuckle pin to realize the opening and closing of the coupler.

Referring to fig. 1-3, fig. 1 is a schematic structural view of an embodiment of a knuckle in the prior art, fig. 2 is a side view of fig. 1, and fig. 3 is a partial sectional view of fig. 2 at an upper traction table and a lower traction table.

As shown in fig. 1 and 2, the coupler knuckle includes a head portion 01, a tail portion 02 and a neck portion 03 connecting the head portion 01 and the tail portion 02, wherein the head portion 01 is provided with a coupler knuckle pin hole for hinging the coupler knuckle and the coupler body, the tail portion 02 is provided with an upper traction table 021 and a lower traction table 022, and in combination with fig. 3, the upper traction table 01 and the lower traction table 02 protrude towards the left and right sides relative to the adjacent portion to form a boss type structure, so that the thickness of the coupler knuckle at the upper and lower traction tables is much larger than that at the adjacent portion, which affects the smoothness of molten metal flowing in the casting process and easily causes quality problems such as shrinkage cavity, looseness and the like.

Therefore, how to provide a solution to overcome the above-mentioned drawbacks remains a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a railway vehicle, coupling and coupler knuckle, wherein, the assurance is changeed to the casting quality of this coupler knuckle, and the weight of coupler knuckle is lighter, can conveniently carry and install.

In order to solve the technical problem, the utility model provides a coupler knuckle, including head, afterbody and connect the two neck, the afterbody is equipped with and pulls the platform, pulls the platform down, the inner chamber wall of afterbody is in pull the platform on and/or pull the corresponding position of platform down and be equipped with the depressed part.

By adopting the structure, the difference between the thickness of the coupler knuckle at the position provided with the upper traction table and/or the lower traction table and the adjacent position can be reduced, the smoothness of the flowing of molten metal such as molten steel can be improved, the quality problems of shrinkage cavity, looseness and the like can be further avoided to a greater extent, and the product quality of the cast coupler knuckle can be ensured.

Meanwhile, because the thickness of the coupler knuckle at the upper and lower traction tables is reduced, the manufacturing consumable material of the coupler knuckle can be reduced, so that the manufacturing cost of the coupler knuckle is reduced, the weight of the coupler knuckle can be reduced, and the carrying and the installation of the coupler knuckle are facilitated.

Optionally, the recess is a smooth curved surface, and the recess and the inner cavity wall adjacent to the recess are in smooth transition.

Optionally, the head includes a columnar body and a tongue body connected to the body, the body is further connected to the neck by a peripheral wall thereof, the body is provided with a tongue hooking pin hole, and both ends of the body are provided with only an impact table.

Optionally, the traction S-surface of the tongue body is perpendicular to the two end surfaces of the body.

Optionally, the pulling S-face has a dimension in the axial direction of the knuckle pin hole of 280-300 mm.

The utility model also provides a car coupler, including coupler body and coupler knuckle, the coupler knuckle is foretell coupler knuckle.

Since the coupler knuckle has the technical effects, the coupler with the coupler knuckle also has similar technical effects, and thus, the detailed description thereof is omitted.

The utility model also provides a railway vehicle, including a plurality of automobile bodies, each the automobile body all is equipped with the coupling, the coupling is foretell coupling.

Since the coupler has the technical effects, the railway vehicle with the coupler also has similar technical effects, and thus the details are not repeated herein.

Drawings

FIG. 1 is a schematic view of a prior art embodiment of a knuckle;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a partial cross-sectional view of FIG. 2 at upper and lower draw stations;

fig. 4 is a schematic structural diagram of an embodiment of a coupler knuckle provided in the present invention;

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a side view of FIG. 4;

fig. 7 is a partial cross-sectional view of fig. 6 at upper and lower draw stations.

The reference numerals in fig. 1-3 are illustrated as follows:

01 head, 011 impact pin flange, 02 tail, 021 upper traction table, 022 lower traction table, 03 neck.

The reference numerals in fig. 4-7 are illustrated as follows:

1 head, 11 body, 111 knuckle pin hole, 112 impact table, 12 tongue body, 121 traction S surface;

2 tail part, 21 upper traction table, 22 lower traction table and 23 depressed part;

3 neck part.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 4-7, fig. 4 is a schematic structural view of an embodiment of a coupler knuckle according to the present invention, fig. 5 is a front view of fig. 4, fig. 6 is a side view of fig. 4, and fig. 7 is a partial sectional view of fig. 6 at an upper traction table and a lower traction table.

As shown in fig. 4-7, the utility model provides a coupler knuckle, including head 1, afterbody 2 and connect the neck 3 of the two, afterbody 2 is equipped with and pulls platform 21, pulls platform 22 down, and the inner chamber wall of afterbody 2 is equipped with depressed part 23 at last pulling platform 21 and/or the corresponding position of pulling platform 22 down.

By adopting the structure, the difference between the thickness of the coupler knuckle at the position provided with the upper traction table 21 and/or the lower traction table 22 and the adjacent position can be reduced, the smoothness of molten metal such as molten steel can be improved, the quality problems of shrinkage cavity, looseness and the like can be further avoided to a greater extent, and the quality of a product cast by the coupler knuckle can be ensured.

Further, referring to fig. 7, the recess 23 may be a smooth curved surface, and the recess 23 and the inner cavity wall adjacent thereto may be in smooth transition, so that the uniformity of thickness transition of the locking tongue between the portion provided with the upper and lower traction tables and the adjacent portion can be improved, thus, the flowing filling effect of the molten metal is better, and the quality of the cast product is easier to ensure.

Here, the embodiment of the present invention does not limit the specific form of the recessed portion 23 of the smooth curved surface, and in the implementation, a person skilled in the art may determine the form by combining related simulation tests, simulation analysis, and the like.

The head 1 may comprise a cylindrical body 11 and a tongue 12 connected to the body 11, the body 11 being further connected to the neck 3 at its peripheral wall, and the body 11 being provided with a knuckle pin hole 111 through which a knuckle pin can pass to hinge the knuckle to the hook during assembly. In the prior art, both ends of the body 11 are provided with impact protection pin flanges (components denoted by reference numeral 011 in fig. 1) in addition to the impact table 112, and the entire knuckle has a large length in the axial direction of the knuckle pin hole 111 and a large weight.

In this regard, the applicant has found that when the coupler is subjected to an impact load, the clearance between the impact land 112 of the knuckle and the impact land of the coupler body is minimized, the two are first subjected to a contact force, the impact guard flange and the tail of the knuckle jointly function as an auxiliary impact, and the impact guard flange is subjected to the contact force only when the impact land 112 of the knuckle is worn. That is, the impact pin bead is inactive for a short period of time, and is not an essential part of the knuckle, particularly as a temporary, rescue knuckle; on the contrary, after the impact protection pin flange is added, the weight of the coupler knuckle is greatly increased, and if the coupler knuckle is broken in the running process of a train, the coupler knuckle which is heavy in carrying and dismounting also increases a large load for field personnel, so that the rapid vehicle rescue is not facilitated.

Thus, in the embodiment of the present invention, the setting of the impact protection pin flange can be cancelled, i.e. both ends of the body 11 can only be equipped with the impact platform 112, so that the hook tongue can not bear the impact load capacity due to excessive influence, and the weight of the hook tongue can also be reduced, so as to reduce the burden of the field personnel in the carrying and installing processes, and further, the efficiency of the field personnel in the process of dismounting and replacing the hook tongue can also be improved.

Further, the embodiment of the utility model provides a can also reform transform the S face that pulls of the tongue body 12, and in prior art, the S face 121 that pulls of the tongue body 12 can all be equipped with at the axial both ends of coupler knuckle pinhole and wipe the inclined plane section including straight section, however, in the in-service use process, only straight section bears impact load.

Thus, in the embodiment of the present invention, the setting of the erasing surface section can be cancelled, that is, the traction S surface 121 of the tongue body 12 can only include the straight surface section, and the straight surface section can be perpendicular to the two end surfaces of the body 11, so that the weight of the coupler knuckle can be further reduced without affecting the traction and coupling performance of the coupler knuckle.

Moreover, after the above improvement, the size of the pulling S-surface 121 of the tongue 12 in the axial direction of the knuckle pin hole 111 can be reduced, and specifically, compared with the tongue 12 generally having a length of 330mm in the prior art, the length of the pulling S-surface 121 of the tongue 12 of the knuckle provided by the present invention can be adjusted to be between 280 mm and 300 mm.

After adopting foretell each scheme, the utility model provides a casting quality of coupler knuckle can obtain great improvement, and the weight of product can be followed original 53KG and alleviateed to about 39.5KG, under the prerequisite that satisfies coupler knuckle service function, can improve the convenience of its transport, installation by a wide margin, and then can improve the installation effectiveness.

The utility model also provides a coupler, including coupler body and coupler knuckle, the coupler knuckle articulates in the coupler body, and wherein, this coupler knuckle is the coupler knuckle that above-mentioned each embodiment relates to.

The utility model also provides a railway vehicle, including a plurality of automobile bodies, each automobile body all is equipped with the coupling, can articulate mutually through the coupling between the two adjacent automobile bodies, and wherein, this coupling is the coupling that each embodiment of the aforesaid relates.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The coupler knuckle comprises a head (1), a tail (2) and a neck (3) connecting the head and the tail, wherein the tail (2) is provided with an upper traction table (21) and a lower traction table (22), and is characterized in that a concave part (23) is arranged on the inner cavity wall of the tail (2) at a position corresponding to the upper traction table (21) and/or the lower traction table (22).

2. The knuckle according to claim 1, characterized in that the recess (23) is smoothly curved and the transition between the recess (23) and the adjoining inner cavity wall is smooth.

3. The knuckle according to claim 1, characterized in that the head (1) comprises a cylindrical body (11) and a tongue body (12) connected to the body (11), the body (11) is further connected to the neck (3) at its peripheral wall, the body (11) is provided with a knuckle pin hole (111), and both ends of the body (11) are provided with only impact platforms (112).

4. Knuckle according to claim 3, characterized in that the pulling S-face (121) of the tongue (12) is perpendicular to the two end faces of the body (11).

5. Knuckle according to claim 4, characterized in that the pulling S-face (121) has a dimension in the axial direction of the knuckle pin hole (111) of 280-300 mm.

6. A coupler comprising a coupler body and a knuckle, characterized in that the knuckle is as claimed in any one of claims 1-5.

7. A railway vehicle comprising a plurality of bodies, each body being provided with a coupler, wherein the coupler is as claimed in claim 6.