KR101784575B1 - a buffer for railway cars - Google Patents
a buffer for railway cars Download PDFInfo
- Publication number
- KR101784575B1 KR101784575B1 KR1020150180632A KR20150180632A KR101784575B1 KR 101784575 B1 KR101784575 B1 KR 101784575B1 KR 1020150180632 A KR1020150180632 A KR 1020150180632A KR 20150180632 A KR20150180632 A KR 20150180632A KR 101784575 B1 KR101784575 B1 KR 101784575B1
- Authority
- KR
- South Korea
- Prior art keywords
- external force
- stepped portion
- impact
- cushioning material
- accommodating space
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/04—Bumpers or like collision guards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/12—Buffers with fluid springs or shock-absorbers; Combinations thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/18—Details
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorber for a railway vehicle, and more particularly, to a shock absorber for a railway vehicle that absorbs impact energy exceeding an external force (force) In the cushioning material accommodating space, the cushioning material accommodating space is formed at one end of the cushioning material accommodating space. The cushioning material accommodating space has an inner surface step for engagement with a plunger for airtightness, And a first outer stepped portion and a second outer stepped portion for receiving and supporting the moving body and the stopper are formed on the outer surface, and the moving body is engaged with the fixed body, and when the required external force is exceeded, A piston rod that is coupled to an inner center of the impact member and interlocks with a pivoting motion, and an external force that is generated in common in the first external surface stepped portion of the impact member and the fixture, And a support ring for restricting the movement of the collision member, And a stopper including a flange having a plurality of fastening holes formed at an edge portion thereof along a circumference so as to be coupled with a bolt mounted on the railway car structure so as to restrict movement of the member and the support ring and a flange ring for fixing and supporting the flange. do.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorber for a railway vehicle, and more particularly, to a shock absorber for a railway vehicle that absorbs impact energy exceeding an external force (force)
2. Description of the Related Art [0002] Generally, a railway car is operated by a plurality of vehicles connected to each other by a train. For this purpose, a linkage for connecting railway vehicles to each other is formed at the front and rear portions of the railway car, And a shock absorber for absorbing impact energy exceeding an external force required at the time of operation and transmitted through the connector.
However, the conventional shock absorber for a railway vehicle is a plastic deformation type and is configured to absorb impact energy while scraping the inner surface by a scraper mounted on the inner tube as a plastic deformation type, There is a problem in that a buffering operation is performed even with a slight excess external force required at the time of connection work between high-cost parts.
In addition, since the shock absorbing operation is performed even with a slight excess external force, parts such as the outer tube of the shock absorber must be replaced, excessive shock energy can not be stably absorbed and the amount of impact applied to passengers or cargo in the room is increased. There is a possibility that the railway vehicle may be derailed or the passenger may be injured or the cargo may be damaged.
SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a railway vehicle, a passenger, and a crew, capable of absorbing impact energy exceeding an external force, And to provide a shock absorber for a railway vehicle which is capable of securing the safety of the railway vehicle and reducing the cost.
According to an aspect of the present invention, there is provided a shock absorber for a railway vehicle comprising a fixed body and a moving body, wherein the fixed body has a cushioning material accommodating space formed therein and a plunger A first outer stepped portion and a second outer stepped portion for receiving and supporting the moving body and the stopper are formed on the outer surface, and the moving body is combined with the fixed body, and when the required outer force is exceeded A piston rod that is coupled to an inner center of the impact member and interlocked with a swinging motion, and an external force generated in common in the first external step portion of the impact member and the fixture, And a support ring for restricting movement of the collision member upon return, the second outer step A flange having a plurality of fastening holes formed at an edge portion thereof along a circumference so as to be coupled with a bolt mounted on the railway car structure so as to limit the movement of the collision member and the support ring and a stopper comprising a flange ring for fixing and supporting the flange, .
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As described above, according to the present invention, it is possible to prevent breakage of components through a fixed body and a movable body which absorb impact energy exceeding an external force required when connecting a connecting device between railway vehicles, and to prevent safety of passengers and crew And the cost is reduced.
In addition, since the impact energy can be stably absorbed by the fixed body and the moving body even when a strong impact is transmitted through the connector, compared with the required external force, the present invention minimizes the impact applied to the passenger or the cargo, It is effective.
The pair of shock absorbers are mutually symmetric, and even if the railway vehicles are strongly impacted by the irregularities formed on one surface of the collision member, they are stably coupled to each other to prevent the occurrence of a marching phenomenon of the railway vehicle, It is possible to prevent the risk of injury or damage to the cargo due to the passenger.
1 is a schematic view illustrating an exploded state of a shock absorber for a railway vehicle according to a preferred embodiment of the present invention.
Fig. 2 is a view showing the coupling state of Fig. 1. Fig.
3 is a cross-sectional view of a main portion of a shock absorber for a railway vehicle according to the present invention.
4 is a view schematically showing a state in which a shock absorber for a railway vehicle according to a preferred embodiment of the present invention is installed in a railway vehicle structure.
5 is a cross-sectional view schematically showing a state before the shock absorber for a railway vehicle of FIG. 4 receives an external force.
FIG. 6 is a schematic view showing a state in which a shock absorber for a railway vehicle according to a preferred embodiment of the present invention is installed in a railway vehicle structure and receives an external force.
FIG. 7 is a cross-sectional view of the shock absorber for a railway vehicle shown in FIG. 6 in a state in which an external force is applied.
Hereinafter, preferred embodiments of the shock absorber for a railway vehicle according to the present invention will be described in more detail with reference to the accompanying drawings.
Hereinafter, the same reference numerals will be used to denote the same or similar elements in all of the following drawings, and repetitive descriptions will be omitted. The following terms are defined in consideration of the functions of the present invention. It should be interpreted as meaning.
As shown in FIGS. 1 to 7, the present invention is roughly divided into a
A plunger for airtightness is formed at one end of the cushioning
Here, the
The first outer surface stepped
A
The
The
The
The cushioning
That is, when an impact energy exceeding the external force required for connection operation of the
Here, the
The moving
The
Here, the outer surface of the
It is preferable that the concave-
That is, when the external force (force) required when connecting the
For example, it is preferable that the concave portions of the concave-
Accordingly, even when the railway vehicle collides with each other due to unexpected operation, the
The
A part of the inner bottom surface located on one side of the second inside
The moving
At this time, the moving
That is, the
As a result, it is possible to prevent the parts from being damaged and to secure the safety of the railway vehicle, the passenger and the crew.
The
The
In other words, bolts are inserted into the fastening
The
A
The
In the assembly of the
At this time, the
Next, the
Thereafter, a fastening means (not shown) such as a bolt is inserted through a
The present invention having such a configuration can greatly simplify the assembling process, thereby achieving significant improvement in workability and cost reduction.
The fixed
At this time, the stroke of the
The operation state of the present invention having the above-described structure will now be described.
First, when the
However, when the railway vehicle moves beyond the speed required for connection of the
More specifically, when an impact is transmitted to the buffer (not shown) through the connector 000 by the contact with the railway car, the buffer primarily acts as a buffer.
However, if the impact strength exceeds the buffering capacity of the buffer, the
Next, when the jumping movement of the
That is, when the
At this time, the
Accordingly, since the
When the
That is, the concave portions of the concave-
Accordingly, even when the railway vehicle collides with each other due to unexpected operation, the
When the impact energy exceeding the required external force is transmitted through the connector, the buffer is buffered, and then the shock absorber according to the present invention is further contacted to easily absorb external impact energy.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. And will be apparent to those skilled in the art to which the invention pertains.
100: buffer for railroad cars 110: fixed body
111: cushion material receiving space 112: inner stepped portion
113: first outer surface step portion 114: second outer surface step portion
113a, 114a:
115: plunger 115a: engaging hole
116: cushion material 120: moving body
121:
121b:
122: piston rod 123: support ring
123a: first
123c: Female thread 130: Stopper
131: flange 131a: fastening hole
132:
210: connector
Claims (4)
The cushioning material accommodating space is formed in the fixture body. An inner surface stepped portion for engaging the plunger for airtightness is formed at one end of the cushioning material accommodating space. The outer surface of the fixture body accommodates and supports the moving body and the stopper. 1 external surface step portion and a second external surface step portion are formed,
Wherein the moving body comprises a collision member which is engaged with the fixed body and which receives the impact force when the external force exceeds a required external force and moves to one side and directly receives the impact force, a piston rod coupled to the inner center of the collision member, And a support ring for restricting movement of the collision member when returning while supporting an external force generated in common in the first outer surface stepped portion of the stagnation,
A flange having a plurality of fastening holes formed at an edge portion thereof along a circumference to be coupled with a bolt mounted on the railway car structure so as to limit movement of the impact member and the support ring through the second outer stepped portion, And a stopper made of a ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150180632A KR101784575B1 (en) | 2015-12-17 | 2015-12-17 | a buffer for railway cars |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150180632A KR101784575B1 (en) | 2015-12-17 | 2015-12-17 | a buffer for railway cars |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170072970A KR20170072970A (en) | 2017-06-28 |
KR101784575B1 true KR101784575B1 (en) | 2017-10-12 |
Family
ID=59280883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150180632A KR101784575B1 (en) | 2015-12-17 | 2015-12-17 | a buffer for railway cars |
Country Status (1)
Country | Link |
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KR (1) | KR101784575B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2730817C1 (en) * | 2019-11-14 | 2020-08-26 | Общество с ограниченной ответственностью "ЖД ТРАНС" | Automatic towing device of electric train |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200161688Y1 (en) * | 1997-02-18 | 1999-12-01 | 최종목 | Absorber for crane |
-
2015
- 2015-12-17 KR KR1020150180632A patent/KR101784575B1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200161688Y1 (en) * | 1997-02-18 | 1999-12-01 | 최종목 | Absorber for crane |
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KR20170072970A (en) | 2017-06-28 |
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