KR101525082B1 - Anti-roll suspension device for railway vehicles - Google Patents

Anti-roll suspension device for railway vehicles Download PDF

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Publication number
KR101525082B1
KR101525082B1 KR1020130156170A KR20130156170A KR101525082B1 KR 101525082 B1 KR101525082 B1 KR 101525082B1 KR 1020130156170 A KR1020130156170 A KR 1020130156170A KR 20130156170 A KR20130156170 A KR 20130156170A KR 101525082 B1 KR101525082 B1 KR 101525082B1
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KR
South Korea
Prior art keywords
link
fixing
hinge shaft
connecting piece
fixing protrusion
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Application number
KR1020130156170A
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Korean (ko)
Inventor
박준영
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현대로템 주식회사
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Priority to KR1020130156170A priority Critical patent/KR101525082B1/en
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Publication of KR101525082B1 publication Critical patent/KR101525082B1/en

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    • 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
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/22—Guiding of the vehicle underframes with respect to the bogies
    • B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
    • 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
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • B61F5/42—Adjustment controlled by buffer or coupling gear

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

The present invention relates to an anti-roll suspending device and a railway vehicle including the same. The device includes a hinge shaft inserted into a bolster to be extended in a lateral direction of a trolley and including fixed protrusions in both ends; a first link including a fixed groove, into which the fixed protrusions are inserted, in an end and comprising a first connection piece formed in a longitudinal direction of the trolley and a second connection piece formed in an upper direction of the trolley; a combination bolt combined with an end of the fixed protrusions by being placed through a washer in the opposite fixed groove to the side, into which the protrusions are inserted, in order to fix the hinge shaft and the first link; a second link having an end connected to the other end of the first connection piece of the first link and having the other end connected to the vehicle body; and a spin preventing unit comprising a buffer part stretching the length of the trolley in front and rear directions by having an end connected to the end of the second connection piece of the first link and having the other end connected to a side of the bolster, and preventing the spinning of the first link and hinge shaft, fixed by the combination bolt, by being formed to correspond to the fixed protrusions and fixed groove. Therefore, as the hinge shaft, installed between the first link and the buffer part, and the first link do not spin with no traction by having a fixing force strengthened by the spin preventing unit, the delivery of power, moving from the second link to the buffer part through the first link, is made sufficiently when the rolling of the vehicle body decreases, and therefore, the rolling decrease performance of the vehicle body is more improved than before.

Description

ANTI-ROLL SUSPENSION DEVICE FOR RAILWAY VEHICLES < RTI ID = 0.0 >

The present invention relates to an antilock suspension apparatus and a railway vehicle having the same, and more particularly, to an antilock suspension apparatus for strengthening the fixing force of a hinge shaft and a first link installed to attenuate rolling of a vehicle body of a low- The present invention relates to a railway vehicle provided with a railway vehicle.

Generally, low-lying railway vehicles are public transportation means that operate on existing roads and complement the shortcomings of subways and buses. They are designed to lower the floor of ordinary railway cars and make it easier for people with disabilities or elderly people to get on and off.

Therefore, various suspension devices are installed on the low-floor railroad car to improve the ride comfort by preventing the vibration and noise generated between the vehicle body and the vehicle from being transmitted to the vehicle body, like a general railroad vehicle.

The suspension device also includes a suspension device for preventing the rolling of the vehicle body. In the case of a low-railway vehicle, since the bottom of the vehicle body is low, the space between the vehicle body and the bolster of the vehicle is narrow, And a suspension for rolling attenuation of a different body.

The prior art for a suspension for rolling damping of such a vehicle body is known from Korean Patent Registration No. 10-1252547.

According to the conventional art, there is provided a hinge device comprising: a hinge shaft rotatably installed on a bolster so as to extend in a transverse direction of a bogie; a first connecting piece having one end fixed to both ends of the hinge shaft and formed in the longitudinal direction of the bogie; A second link having one end rotatably connected to the other end of the first connecting piece of the first link and the other end rotatably connected to the vehicle body; One link is fixed to the end of the second connecting piece of the link and the other end is fixed to the side of the bolster so that the buffer can expand and contract in the back and forth direction of the car.

1, a fixing protrusion 110 protruding from both ends of the hinge shaft 100 is fixed to a first end of the first connecting piece 210, The fastening bolts B are inserted into the fixing grooves 211 formed in the end portions of the fixing protrusions 110 through the washer W from the side of the opposite fixing groove 211 into which the fixing protrusions 110 are inserted. The hinge shaft 100 and the first link 200 are fixed by being fastened to the fastening groove 111.

Therefore, according to the prior art, since the up-and-down vibration of the vehicle body due to the rolling of the vehicle body is converted into the front-back vibration of the vehicle body, the rolling-attenuating performance of the vehicle body is good without occupying much space than that of a general railway vehicle. I could.

However, when the fastening bolt is loosened gradually by the vibration of the vehicle body as the hinge shaft and the first link are fastened by tightening the fastening bolts, the first link inserted into the end of the hinge shaft due to the loss of fixing force between the hinge shaft and the first connecting piece The power transmitted from the second link to the cushioning portion through the first link is not sufficiently transmitted when the vehicle body is rolled, and the rolling attenuation performance of the vehicle body is remarkably deteriorated.

Korean Registered Patent No. 10-1252547 (2013, 04, 02)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a hinge shaft and a first link provided between a first link and a cushion, So that a force received from the second link can be sufficiently transmitted to the cushioning portion.

To achieve the above object, according to the present invention, there is provided a hinge shaft comprising: a hinge shaft rotatably inserted into a bolster so as to extend transversely of a carriage and having fixing projections projected from both ends thereof; A first link including a first connecting piece provided at one end in a longitudinal direction of the bogie and a second connecting piece formed above a bogie with respect to the first connecting piece, A fastening bolt which is seated on the opposite side fixing groove side through which the projection is inserted through a washer and is fastened to the end of the fixing projection; and a fastening bolt which has one end rotatably connected to the other end of the first connecting piece of the first link, One end of which is rotatably connected to the end of the second connecting piece of the first link and the other end of which is rotatable on the side of the bolster The hinge shaft is fixed to the fixing protrusion and the fixing groove. The hinge shaft is fixed to the fixing protrusion and the fixing groove. The spine is prevented from spinning with respect to the first link. And the like.

In the present invention, the fixing protrusions are tapered to have a smaller cross-sectional area toward the end, and the fixing grooves are formed so that the inner peripheries correspond to the fixing protrusions.

In the present invention, the spin preventing means comprises a first toothed portion protruding at an outer periphery of the fixing protrusion at regular intervals, and a second toothed portion engaged with the first toothed portion around the fixing groove. do.

According to the present invention, the spin prevention means comprises a plurality of first surface portions formed to be planar on the outer periphery of the fixing protrusions, and a second surface portion which abuts against the first surface portion in the inner periphery of the fixing groove .

In the present invention, an antilock suspension device including a hinge shaft, a first link, a fastening bolt, a second link, a buffer, and a spin preventing means is formed on a railway vehicle.

As described above, according to the present invention, since the hinge shaft and the first link provided between the first link and the cushioning portion are strengthened by the anti-spin means, 1 link is sufficiently transmitted to the cushioning portion, so that the rolling attenuation performance of the vehicle body is improved.

1 is a view showing a conventional suspension device for a railway vehicle.
2 is a view showing an installation state of a suspension for a railway vehicle according to the present invention.
3 and 4 are an exploded perspective view and an assembled cross-sectional view illustrating a hinge shaft and a first link of a suspension for a railway vehicle according to an embodiment of the present invention.
5 and 6 are an exploded perspective view and an assembled cross-sectional view showing a hinge shaft and a first link of a suspension for a railway vehicle according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an antilock suspension apparatus and a railway vehicle having the same according to the present invention will be described in 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.

3 and 4 are an exploded perspective view and a perspective view showing a hinge shaft and a first link of a suspension for a railway car according to an embodiment of the present invention; FIG. 3 is a perspective view of a suspension for a railway car according to an embodiment of the present invention; And FIGS. 5 and 6 are an exploded perspective view and an assembled cross-sectional view showing a hinge shaft and a first link of a suspension for a railway vehicle according to another embodiment of the present invention.

The configuration of the present invention will be described as follows.

A hinge shaft 100 is rotatably inserted into a bolster 40 so as to extend in the lateral direction of the bogie 20 and both ends of the hinge shaft 100 are fixed to both sides of the bolster 40 Respectively.

A first link 200 is formed on both ends of the hinge shaft 100 so as to be symmetrical to each other. The first link 200 is fixed to one end of the hinge shaft 100, And a second connecting piece 220 formed above the bogie 20 with respect to the first connecting piece 210. The first connecting piece 210 is formed in the longitudinal direction of the bogie 20,

A second link 300 is formed at the other end of the first link 200 of the first link 200 so that one end thereof is rotatably connected and the other end thereof is rotatably connected to the lower portion of the vehicle body 10.

One end of the second linking piece 220 of the first link 200 is rotatably fixed to the end of the second linking piece 220 and the other end of the second linking piece 220 is rotatably fixed to the side surface of the bolster 40, A portion 500 is formed.

The hinge shaft 100 and the first link 200 are fixed by a fixing protrusion 110 protruding from both ends of the hinge shaft 100. The fixing protrusion 110 passes through one end of the first connecting piece 210 And the fastening bolt B is inserted into the fixing protrusion 110 through the washer W from the side of the opposite fixing groove 211 into which the fixing protrusion 110 is inserted, The hinge shaft 100 and the first link 200 are fixed to each other.

2, the fixing protrusion 110 is tapered so that its cross-sectional area becomes smaller toward the end, and the inner periphery of the fixing groove 211 is also formed in a shape of the fixing protrusion 110 As shown in Fig.

As shown in FIGS. 3 and 4, the spin preventing unit 800 includes a first serration 810 protruding at a predetermined interval from the outer circumference of the fixing protrusion 110, A second toothed portion 820 is formed on the inner circumference of the fixing groove 211 to engage with the first toothed portion 810.

5 and 6, a plurality of first surface portions 830 are formed on the outer circumference of the fixing protrusions 110 to form a plurality of first surface portions 830, A second surface portion 840 is formed on the inner circumference of the fixing groove 211 so as to abut against the first surface portion 830.

The railway vehicle is provided with the hinge shaft 100, the first link 200, the fastening bolt B, the second link 300, the buffer unit 500, (800). ≪ / RTI >

The operation state of the present invention having the above-described structure will now be described.

As shown in FIG. 2, when the vehicle body 10 is rolled (left-right rotation), the second link 300 connected to the vehicle body 10 moves up and down in the vertical direction.

The first connecting piece 210 of the first link 200 connected to the second link 300 is rotated in the vertical direction about the hinge axis 100 Since the second connecting piece 220 of the first link 200 is formed at a right angle to the first connecting piece 210 and is formed close to the hinge shaft 100, the second connecting piece 220 is rotated in the vertical direction And is rotated in forward and backward directions.

When the second connecting piece is rotated in the front-rear direction, the second connecting piece pushes or pulls the buffering part 500, so that the buffering part 500 attenuates the rolling of the vehicle body 10 while expanding and contracting the length in the front- do.

At this time, the hinge shaft 100 and the first link 200 are fixed to the fixing grooves 211 formed on the first connecting piece 210 of the first link 200 at both ends of the hinge shaft 100 The hinge shaft 100 and the first link 200 integrally rotate in the same direction and transmit the rotational force to the buffer unit 500 .

In addition, since the spin preventing means 800 is formed at the contact portion in the fixing protrusion 110 and the fixing groove 211, even if the tightening of the fastening bolt B is loosened to some extent, the hinge shaft 100, The spin stop unit 200 is not idle as in the conventional case.

3 and 4, the spin preventive device 800 may include a first protrusion 810 formed on the outer circumference of the fixing protrusion 110, The second toothed portion 820 is formed around the first toothed portion 820 and the second toothed portion 820 so that the first toothed portion 810 and the second toothed portion 820 are engaged with each other while the fixing protrusion 110 is inserted into the fixing groove 211, The hinge shaft 100 and the first link 200 integrally transmit the force transmitted from the second link 300 to the cushioning unit 500 without being loose.

5 and 6, as another embodiment of the spin preventing means 800, a plurality of first surface portions 830 are formed on the outer circumference of the fixing protrusions 110, A plurality of second surface portions 840 are formed in the inner circumference of the first surface portion 830 and the second surface portion 840 in a state where the fixing protrusions 110 are inserted into the fixing grooves 211, The hinge shaft 100 and the first link 200 do not idle while rotating and sufficiently transmit the force transmitted from the second link 300 to the buffer unit 500 .

2, the fixing protrusion 110 is tapered so that its cross-sectional area becomes smaller toward the end, and the inner circumference of the fixing groove 211 also has a shape corresponding to the shape of the fixing protrusion 110 The insertion of the fixing groove 211 of the first link 200 into the fixing protrusion 110 of the hinge shaft 100 during the assembly of the hinge shaft 100 and the first link 200 It is possible to prevent the end of the fixing protrusion 110 from falling toward the opposite side of the fixing groove 211 in a state where the fixing protrusion 110 is inserted into the fixing groove 211. [

 Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. In addition, it is a matter of course that various modifications and variations are possible without departing from the scope of the technical idea of the present invention by anyone having ordinary skill in the art.

10: Body 20: Truck
40: Bolster 100: Hinge shaft
110: fixing protrusion 111: fastening groove
200: first link 210: first connection
211: fixing groove 220: second connecting piece
300: second link 500: buffer
800: spin prevention means 810: first toothed portion
820: second tooth portion 830: first surface portion
840: second surface portion B: fastening bolt
W: Washer

Claims (5)

A hinge shaft rotatably inserted into the bolster so as to extend in the transverse direction of the carriage and having fixing protrusions respectively projected at both ends thereof;
A first link having a first connecting piece formed in a longitudinal direction of the bogie and a second connecting piece formed above a bogie with respect to the first connecting piece, the first link having a fixing groove at one end thereof for receiving the fixing protrusion of the hinge shaft,
A fastening bolt fastened to an end of the fixing protrusion by being seated through a washer on a side of the opposite fixing groove into which the fixing protrusion is inserted so that the hinge shaft and the first link are fixed,
A second link, one end of which is rotatably connected to the other end of the first connecting piece of the first link and the other end of which is rotatably connected to the vehicle body;
And a cushion portion having one end rotatably connected to the end of the second connecting piece of the first link and the other end rotatably connected to the side surface of the bolster,
And a spin preventing means formed to correspond to the fixing protrusions and the fixing grooves, respectively, for preventing spin of the hinge shaft and the first link fixed by the fixing bolts,
Wherein the spin prevention means comprises:
A first toothed portion protruding from the outer circumference of the fixing protrusion at regular intervals,
And a second toothed portion engaged with the first toothed portion around an inner periphery of the fixing groove.
The method according to claim 1,
Wherein the fixing protrusion has a tapered outer periphery so that the cross-sectional area of the fixing protrusion gradually decreases toward an end thereof, and the inner periphery of the fixing protrusion is formed to correspond to the shape of the fixing protrusion.
delete The method according to claim 1,
Wherein the spin prevention means comprises:
A plurality of first surface portions formed to be planar on an outer periphery of the fixing protrusions,
And a second surface portion that abuts against the first surface portion in the inner periphery of the fixing groove.
delete
KR1020130156170A 2013-12-16 2013-12-16 Anti-roll suspension device for railway vehicles KR101525082B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107539333A (en) * 2017-08-30 2018-01-05 中车株洲电力机车有限公司 A kind of anti-side rolling and vibration damping integrating device and its bogie
WO2019125819A1 (en) * 2017-12-18 2019-06-27 Standard Car Truck Company Railroad car truck with warp restraints
CN110254462A (en) * 2019-07-11 2019-09-20 株洲时代新材料科技股份有限公司 A kind of torsion bar mechanism for preventing side rolling of train carriage and rail vehicle of no fixed mounting base

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101126299B1 (en) * 2009-12-17 2012-03-19 현대로템 주식회사 Anti-roll bar apparatus for railway vehicle
KR101252547B1 (en) * 2011-09-29 2013-04-08 현대로템 주식회사 Suspension device for rail vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101126299B1 (en) * 2009-12-17 2012-03-19 현대로템 주식회사 Anti-roll bar apparatus for railway vehicle
KR101252547B1 (en) * 2011-09-29 2013-04-08 현대로템 주식회사 Suspension device for rail vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107539333A (en) * 2017-08-30 2018-01-05 中车株洲电力机车有限公司 A kind of anti-side rolling and vibration damping integrating device and its bogie
WO2019125819A1 (en) * 2017-12-18 2019-06-27 Standard Car Truck Company Railroad car truck with warp restraints
US11008027B2 (en) 2017-12-18 2021-05-18 Standard Car Truck Company Railroad car truck with warp restraints
CN110254462A (en) * 2019-07-11 2019-09-20 株洲时代新材料科技股份有限公司 A kind of torsion bar mechanism for preventing side rolling of train carriage and rail vehicle of no fixed mounting base

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