JPH027099Y2 - - Google Patents
Info
- Publication number
- JPH027099Y2 JPH027099Y2 JP16038983U JP16038983U JPH027099Y2 JP H027099 Y2 JPH027099 Y2 JP H027099Y2 JP 16038983 U JP16038983 U JP 16038983U JP 16038983 U JP16038983 U JP 16038983U JP H027099 Y2 JPH027099 Y2 JP H027099Y2
- Authority
- JP
- Japan
- Prior art keywords
- axle
- axle box
- spring
- bogie
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
Landscapes
- Vehicle Body Suspensions (AREA)
Description
【考案の詳細な説明】
本考案は車軸により舵取りを行なえるようにし
た鉄道車両用台車の軸箱支持装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an axle box support device for a bogie for a railway vehicle that allows steering by an axle.
通常、鉄道車両用ボギー式４輪台車において
は、前後車軸は台車の縦軸線（台車の進行方向に
沿つた軸線）に対し直角の方向に平行に配置さ
れ、車軸の両端部を回転可能に支持する軸箱は台
車枠に設けられた軸箱守りにより上下方向に移動
可能に案内されているが、前後方向或は左右方向
にはほとんど変位できないようになつている。し
たがつて水平面上に投映した二つの車軸は常に平
行を保つたままになつていて、台車の舵取りは芯
皿を回転軸心とした台車全体の旋回によつて行な
つている。 Normally, in a bogie-type four-wheeled bogie for railway vehicles, the front and rear axles are arranged parallel to a direction perpendicular to the longitudinal axis of the bogie (the axis along the traveling direction of the bogie), and both ends of the axle are rotatably supported. The axle box is guided so as to be movable in the vertical direction by an axle box guard provided on the truck frame, but it is designed so that it can hardly be displaced in the front-rear direction or the left-right direction. Therefore, the two axles projected on the horizontal plane always remain parallel, and the carriage is steered by turning the entire carriage around the core plate as the axis of rotation.
ところが、このような台車では車両が直線軌道
上を走行するときは問題ないが、曲線軌道上を走
行する場合には、車輪のフランジ面と軌道を形成
するレールの頭部内側とが接触しながら進行する
ことになりしかもフランジ面の周速が車輪踏面の
周速よりも速くフランジ面とレールの頭部内側と
が滑り接触となるため、車輪フランジ部およびレ
ール頭部内側の摩耗を促進させるのみならず横圧
を増加せしめてきしみ音を発生させ、更には乗り
上げ脱線事故等を発生させる原因にもなる。この
ため曲線軌道上を通過する場合には速度を抑制し
なければならない問題がある。 However, with such a bogie, there is no problem when the vehicle runs on a straight track, but when the vehicle runs on a curved track, the flange surface of the wheel and the inside of the head of the rail forming the track come into contact with each other. Moreover, the circumferential speed of the flange surface is faster than the circumferential speed of the wheel tread surface, causing sliding contact between the flange surface and the inside of the rail head, which only accelerates wear on the wheel flange and the inside of the rail head. Otherwise, the lateral pressure will increase, causing squeaks, and even causing accidents such as running over and derailing. For this reason, there is a problem in that when passing on a curved trajectory, the speed must be suppressed.
このような問題を解決する手段として、従来、
第１図に示されるような軸箱支持装置がある。こ
の装置はいわゆる軸箱守りを取り除いて軸箱ａの
前、後両側面（図において左右両側面）と台車枠
ｂとの間のすき間ｃを比較的大きくして、そこに
コイルばね等の定常数ばねｄを設けたものであ
る。 Conventionally, as a means to solve such problems,
There is an axle box support device as shown in FIG. This device removes the so-called axle box guard and creates a relatively large gap c between the front and rear sides of the axle box a (both left and right sides in the figure) and the bogie frame b, and uses a coil spring or other stationary Several springs d are provided.
しかしながら、このような装置では、ばねｄの
剛性を小さくして曲線軌条通過時の車軸による舵
取りを容易にすれば直線通過時にだ行動を起し易
くなり、逆に剛性を大きくしてだ行の発生を防止
しようとすれば車軸による舵取りが行ないにくく
なる問題がある。 However, in such a device, if the stiffness of the spring d is made small to make it easier to steer the axle when passing through a curved track, it becomes easier to cause the axle to steer when passing in a straight line; If attempts are made to prevent this from occurring, there is a problem in that steering using the axle becomes difficult.
本考案はかかる従来の軸箱支持装置の問題に鑑
みて成されたものであつて、その目的とするとこ
ろは、直線軌条通過時と曲線軌条通過時とによつ
て軸箱の前後両側部を支持するばねの剛性を変え
ることにより曲線軌条通過時の車軸による舵取り
を容易にするとともに直線軌条通過時のだ行動の
発生を防止することにある。 The present invention was developed in view of the problems of the conventional axle box support device, and its purpose is to support both the front and rear sides of the axle box when passing on a straight track and when passing on a curved track. By changing the stiffness of the supporting springs, the purpose is to facilitate steering by the axle when passing on curved rails, and to prevent the occurrence of slippage when passing on straight rails.
本考案による鉄道車両用台車の軸箱支持装置
は、軸箱の前、後両側面と台車わくの側面との間
にばね常数の小さな金属ばねを具備した横方向に
伸びる空気ばねをそれぞれ配設しかつ軸箱の上面
と台車わくとの間には軸ばねを配設し、該空気ば
ねのばね常数を選択的に調節可能にして構成され
ている。 The axle box support device for a railway vehicle bogie according to the present invention has horizontally extending air springs each equipped with a metal spring with a small spring constant between the front and rear sides of the axle box and the side of the bogie frame. In addition, an axle spring is disposed between the upper surface of the axle box and the truck frame, and the spring constant of the air spring can be selectively adjusted.
以下図面を参照して本考案による軸箱支持装置
の実施例について説明する。 Embodiments of the axle box support device according to the present invention will be described below with reference to the drawings.
第２図において、本実施例による軸箱支持装置
１が示されている。同図において、２は台車枠、
３は台車枠の端部に形成された軸箱受け部、４は
車軸の端部を回転可能に支持する軸箱である。 In FIG. 2, an axle box support device 1 according to this embodiment is shown. In the same figure, 2 is a truck frame;
Reference numeral 3 designates an axle box receiving portion formed at the end of the truck frame, and 4 designates an axle box that rotatably supports the end of the axle.
軸箱受け部３内には、軸箱４の上面５と台車枠
２との間に軸ばね６が、軸箱４の前側面（本実施
例では第２図で左側面を前側面とする）７と台車
枠２との間に空気ばね８が、かつ軸箱４の後側面
（本実施例では第２図で右側面を後側面とする）
９と台車枠２の軸箱受け部３を限定する側面２
ａ，２ｂとの間に空気ばね１０がそれぞれ設けら
れている。各空気ばね８および１０内には空気ば
ねのパンク時にも軸箱の前後両側面をある程度支
持できるようにばね定数の小さな（曲線軌条通過
時に車軸による自由な舵取りを妨げないような
値）のコイルばね１２および１４がそれぞれ内蔵
されている。 In the axle box receiving part 3, an axle spring 6 is installed between the upper surface 5 of the axle box 4 and the bogie frame 2, and the axle spring 6 is connected to the front side of the axle box 4 (in this embodiment, the left side in FIG. 2 is the front side). ) 7 and the bogie frame 2, and the rear side of the axle box 4 (in this embodiment, the right side in Fig. 2 is the rear side).
9 and the side surface 2 that limits the axle box receiving part 3 of the bogie frame 2
Air springs 10 are respectively provided between the terminals a and 2b. Inside each air spring 8 and 10 is a coil with a small spring constant (a value that does not prevent the axle from freely steering when passing through a curved track) so that it can support both the front and rear sides of the axle box to some extent even in the event of a puncture of the air spring. Springs 12 and 14 are built in, respectively.
各空気ばね８および９はそれぞれ別個の導管１
５，１６および切換弁１７，１８を介して空気圧
源１９に接続されている。この空気圧源は公知の
手段例えば異なる圧力の減圧弁を通す等により圧
力の異なる空気を供給できるようになつている。 Each air spring 8 and 9 has a separate conduit 1
5, 16 and switching valves 17, 18 to an air pressure source 19. This air pressure source is capable of supplying air at different pressures by known means, such as through pressure reducing valves at different pressures.
次に第３図を参照して動作を説明する。 Next, the operation will be explained with reference to FIG.
軸箱支持装置１は、第３図に示されるように、
各車軸の両端を回転可能に支持する軸箱ごとに、
したがつて２軸台車に対しては計４個が設けられ
ている。４個の軸箱支持装置をそれぞれ１ａ，１
ｂ，１ｃ，１ｄとすると、台車２０が直線軌条を
通過するとき車軸は軌条に対して直角に固定した
状態でよいから、各軸箱支持装置の前後両空気ば
ね８ａ〜８ｄおよび１０ａ〜１０ｄには比較的高
圧（例えば６Kg／cm2）の空気圧が供給される。し
たがつて軸箱の前後両側部を支持するばねのばね
定数は同一でしかも大きくなり、車軸２１は第３
図Ａに示される状態に保持される。 As shown in FIG. 3, the axle box support device 1 includes:
For each axle box that rotatably supports both ends of each axle,
Therefore, a total of four pieces are provided for a two-axle truck. The four axle box support devices are 1a and 1, respectively.
b, 1c, and 1d, when the bogie 20 passes through a straight rail, the axle may be fixed at right angles to the rail, so the front and rear air springs 8a to 8d and 10a to 10d of each axle box support device is supplied with relatively high air pressure (for example, 6 kg/cm 2 ). Therefore, the spring constants of the springs supporting both the front and rear sides of the axle box are the same and larger, and the axle 21 is
The state shown in Figure A is maintained.
次に台車２０が曲線軌条を通過する場合、例え
ば第３図Ｂに示されるような曲線軌条を通過する
ときは、例えば線路の脇に曲線路信号発生装置を
設け、その信号を感知して各軸箱支持装置１ａ〜
１ｄの各空気ばねの内の圧力空気の一部が車軸を
軌条の曲率中心に指向させるために、前後両側部
の空気ばねの内圧に曲率に応じたわずかな圧力差
が生じるように、排出され、空気ばね内の空気圧
は全体的に低くされる。例えば空気ばね８ａ，１
０ｂ，１０ｃおよび８ｄの内圧が1.5Kg／cm2に減
圧され、空気ばね１０ａ，８ｂ，８ｃおよび１０
ｄの内圧は1.7Kg／cm2に減圧される。これにより、
各軸箱は前後両側部のばねの合成ばね定数（空気
ばねのばね定数とコイルばねのばね定数の和）が
等しくなるまで低圧側に移動して車軸を傾斜さ
せ、車軸を曲率中心に指向させる。そして曲率が
変つた場合には前記圧力差を変えて調節する。ま
た曲率が逆の場合には前述とは逆に圧力差を生じ
させる。 Next, when the bogie 20 passes through a curved track, for example, when passing through a curved track as shown in FIG. Axle box support device 1a~
In order to direct the axle to the center of curvature of the rail, a part of the pressurized air in each air spring 1d is discharged so that a slight pressure difference is created between the internal pressures of the air springs on both front and rear sides according to the curvature. , the air pressure in the air spring is lowered overall. For example, air springs 8a, 1
The internal pressure of air springs 10a, 8b, 8c and 10 is reduced to 1.5Kg/cm 2 .
The internal pressure of d is reduced to 1.7Kg/cm 2 . This results in
Each axle box is moved to the low pressure side until the composite spring constant of the springs on both front and rear sides (the sum of the spring constant of the air spring and the spring constant of the coil spring) is equal, tilting the axle and directing the axle to the center of curvature. . If the curvature changes, the pressure difference is adjusted accordingly. Moreover, when the curvature is reversed, a pressure difference is generated opposite to the above.
このように本考案の軸箱支持装置によれば、直
線軌条通過時には軸箱の前後両側部を支持するば
ねのばね定数を大きくして車軸のだ行動安定性を
高くしかつ曲線軌条通過時にはばね定数を小さく
するとともに圧力差により車軸を曲率中心に指向
させることができ、台車の運転特性の向上を図る
ことができる。 As described above, according to the axle box support device of the present invention, the spring constant of the springs that support the front and rear sides of the axle box is increased when passing on a straight track, thereby increasing the stability of the axle's sliding movement, and the spring constant is increased when passing on a curved track. By reducing the constant and by making the pressure difference direct the axle to the center of curvature, it is possible to improve the driving characteristics of the bogie.
第１図は従車の軸箱支持装置の一例を示す図、
第２図は本考案による軸箱支持装置の実施例の一
部を断面で示す図、第３図は第２図の軸箱支持装
置を備えた２軸台車の動作説明図である。
１：軸箱支持装置、２：台車枠、４：軸箱、
６：軸ばね、８，１０：空気ばね、１２，１４：
金属ばね。
Figure 1 is a diagram showing an example of an axle box support device for a driven vehicle;
FIG. 2 is a cross-sectional view of a part of an embodiment of the axle box support device according to the present invention, and FIG. 3 is an explanatory diagram of the operation of a two-axle truck equipped with the axle box support device of FIG. 1: Axle box support device, 2: Bogie frame, 4: Axle box,
6: Axial spring, 8, 10: Air spring, 12, 14:
metal spring.
Claims (1)
ばね常数の小さな金属ばねを具備した横方向に伸
びる空気ばねをそれぞれ配設しかつ軸箱の上面と
台車わくとの間には軸ばねを配設し、該空気ばね
のばね常数を選択的に調節可能にしたことを特徴
とする鉄道車両用台車の軸箱支持装置。 Air springs each having a metal spring with a small spring constant and extending in the horizontal direction are arranged between the front and rear sides of the axle box and the side of the bogie frame, and between the top surface of the axle box and the bogie frame. An axle box support device for a bogie for a railway vehicle, characterized in that an axle spring is provided and the spring constant of the air spring can be selectively adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16038983U JPS6067274U (en) | 1983-10-17 | 1983-10-17 | Axle box support device for railway vehicle bogies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16038983U JPS6067274U (en) | 1983-10-17 | 1983-10-17 | Axle box support device for railway vehicle bogies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6067274U JPS6067274U (en) | 1985-05-13 |
| JPH027099Y2 true JPH027099Y2 (en) | 1990-02-20 |
Family
ID=30352789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16038983U Granted JPS6067274U (en) | 1983-10-17 | 1983-10-17 | Axle box support device for railway vehicle bogies |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6067274U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0741836B2 (en) * | 1986-01-29 | 1995-05-10 | 財団法人鉄道総合技術研究所 | Self-axle steering cart |
| JP5165487B2 (en) * | 2008-07-23 | 2013-03-21 | 日本車輌製造株式会社 | Railway vehicle |
| JP5291655B2 (en) * | 2010-03-31 | 2013-09-18 | 公益財団法人鉄道総合技術研究所 | Shaft box support device |
| JP5404897B2 (en) * | 2012-11-16 | 2014-02-05 | 日本車輌製造株式会社 | Railway vehicle |
-
1983
- 1983-10-17 JP JP16038983U patent/JPS6067274U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6067274U (en) | 1985-05-13 |
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