JPH0419061B2 - - Google Patents
Info
- Publication number
- JPH0419061B2 JPH0419061B2 JP56161011A JP16101181A JPH0419061B2 JP H0419061 B2 JPH0419061 B2 JP H0419061B2 JP 56161011 A JP56161011 A JP 56161011A JP 16101181 A JP16101181 A JP 16101181A JP H0419061 B2 JPH0419061 B2 JP H0419061B2
- Authority
- JP
- Japan
- Prior art keywords
- rolling rubber
- outer cylinder
- core metal
- rubber
- rolling
- 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 - Lifetime
Links
Landscapes
- Vibration Prevention Devices (AREA)
- Metal Rolling (AREA)
Description
【発明の詳細な説明】
本発明は、リング状の防振ゴムを用いた鉄道車
両の軸箱支持装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an axle box support device for a railway vehicle using a ring-shaped vibration isolating rubber.
従来、リング状の防振ゴム（以下ローリングゴ
ムばねという）を用いた軸箱支持装置は、第１図
および第３図に示す構成となつている。図におい
て、１は車体、３は枕ばね２を介して車体１を支
持する台車、４は輪軸６の両端に設けられた軸箱
体５の支持固定および台車３を支えるローリング
ゴムばねである。該ローリングゴムばね４の構成
は、第３図に示すように釣鐘状の外筒７と同心に
配置された心金１１および該外筒７と心金１１と
の間に配置されローリングゴム９とから成つてい
る。ところで、前記構成においては、外筒７とロ
ーリングゴム９および心金１１とローリングゴム
９がそれぞれ直接接触しているため、非常に滑り
にくくばね特性として純粋のゴムの特性に支配さ
れる傾向があつた。一般的なゴムの特性として
は、周波数が高くなる程ゴムは等価的に硬くな
り、動的ばね定数が上昇するという傾向を有す
る。この割合を動倍率（KD／KS）と言う。第２
図に周波数と動倍率の関係を示す。すなわち、内
部減衰の大きいゴムではＣのような特性を示す。
この場合、低周波域で十分な減衰力を得ようとす
るのに適しているが、高周波数ではばね定数が上
るため、ゴツゴツした乗心地となる欠点があつ
た。内部減衰の小さいゴムではＢのような特性を
示し高周波域でのばね定数の上昇は少ないため、
ゴツゴツする問題は解決されるが、今度は逆に低
周波域での減衰が不足する結果となり、場合によ
つては別にオイルダンパーなどを追加する必要が
あるという欠点があつた。 Conventionally, an axle box support device using a ring-shaped vibration isolating rubber (hereinafter referred to as a rolling rubber spring) has a structure shown in FIGS. 1 and 3. In the figure, 1 is a vehicle body, 3 is a truck that supports the vehicle body 1 via pillow springs 2, and 4 is a rolling rubber spring that supports and fixes an axle box 5 provided at both ends of a wheel axle 6 and supports the truck 3. As shown in FIG. 3, the rolling rubber spring 4 has a structure including a core metal 11 disposed concentrically with a bell-shaped outer cylinder 7, and a rolling rubber 9 disposed between the outer cylinder 7 and the core metal 11. It consists of By the way, in the above structure, since the outer cylinder 7 and the rolling rubber 9 and the core metal 11 and the rolling rubber 9 are in direct contact with each other, the spring characteristics are extremely hard to slip and tend to be dominated by the characteristics of pure rubber. Ta. As a general characteristic of rubber, there is a tendency that the higher the frequency, the harder the rubber equivalently becomes, and the higher the dynamic spring constant. This ratio is called dynamic magnification (K D /K S ). Second
The figure shows the relationship between frequency and dynamic magnification. That is, rubber with large internal damping exhibits characteristics like C.
In this case, it is suitable for obtaining sufficient damping force in the low frequency range, but the spring constant increases at high frequencies, resulting in a bumpy ride. Rubber with low internal damping exhibits characteristics like B, and the spring constant increases little in the high frequency range.
Although the bumpiness problem was solved, this time the damping in the low frequency range was insufficient, and in some cases it was necessary to add a separate oil damper.
本発明の目的とするところは、ローリングゴム
を用いて車軸上に台車枠を弾性支持する軸箱支持
装置において、台車の仕様に合わせて減衰力およ
び動倍率を簡単な構成で任意に設定することがで
き、乗心地の向上が図れる鉄道車両の軸箱支持装
置を提供することにある。 An object of the present invention is to provide an axle box support device that elastically supports a bogie frame on an axle using rolling rubber, and to arbitrarily set the damping force and dynamic magnification in accordance with the specifications of the bogie with a simple configuration. An object of the present invention is to provide an axle box support device for a railway vehicle that can improve riding comfort.
本発明は、リング状に形成されたローリングゴ
ムと、内面が釣鐘状に形成された外筒と、外面が
円錐状に形成された芯金とからなり、前記心金に
前記ローリングゴムを介して前記外筒を嵌合させ
台車枠を車軸上に弾性支持する鉄道車両の軸箱支
持装置において、前記外筒および芯金の前記ロー
リングゴムとの接触面に、該ローリングゴムとの
間の摩擦係数を決定するコーテイング材をコーテ
イングしたことを特徴とするものである。 The present invention comprises a rolling rubber formed in a ring shape, an outer cylinder having an inner surface formed in a bell shape, and a core metal having a conical outer surface, and the rolling rubber is connected to the core metal through the rolling rubber. In the axle box support device for a railway vehicle in which the outer cylinder is fitted and the bogie frame is elastically supported on the axle, a friction coefficient between the outer cylinder and the rolling rubber is applied to the contact surface of the outer cylinder and the core metal with the rolling rubber. It is characterized by being coated with a coating material that determines the
次に、本願発明を第４図に示す実施例により詳
細に説明する。第４図は本発明による軸箱支持装
置のローリングゴムばねの一実施例を示す断面図
である。同図において、前記従来例と同一符号は
同一部材を示すもので、ここでは説明を省略す
る。８は外筒７の内面に塗布されたコーテイング
材、１０は芯金１１の外周面に塗布されたコーテ
イング材で、該コーテイング材８および１０はロ
ーリングゴム９との間の摩擦係数を考慮して選定
されるものであつて、台車の仕様に合わせて摩擦
係数を決定し、ローリングゴム９と外筒７および
芯金１１の相対的な滑りを調整する役割を有す
る。また、必要な摩擦係数を得るためにその材質
を種々選定するものである。したがつて、前記コ
ーテイング材８，１０の摩擦係数を低いものとし
た場合、低周波域では滑り速度が低くなるため、
ローリングゴム９と外筒７および芯金１１の表面
での転がりによる摩擦力が大きく減衰力が大きく
なり、一方、高周波域では滑り速度が高くなるた
め、ローリングゴム９は転がりにくく該ローリン
グゴム９自体の内部減衰に大きく依存し該内部減
衰を小さくしておけば、摩擦力が小さくなり、結
果的に動倍率が低下するという特性となる。ま
た、前記摩擦係数の選定によつて特性を変更させ
ることも可能である。 Next, the present invention will be explained in detail with reference to an embodiment shown in FIG. FIG. 4 is a sectional view showing one embodiment of the rolling rubber spring of the axle box support device according to the present invention. In the figure, the same reference numerals as those in the conventional example indicate the same members, and the explanation thereof will be omitted here. 8 is a coating material applied to the inner surface of the outer cylinder 7, 10 is a coating material applied to the outer peripheral surface of the core metal 11, and the coating materials 8 and 10 are coated in consideration of the coefficient of friction between them and the rolling rubber 9. It has the role of determining the friction coefficient according to the specifications of the truck and adjusting the relative slippage between the rolling rubber 9, the outer cylinder 7, and the core metal 11. In addition, various materials are selected in order to obtain the necessary coefficient of friction. Therefore, when the coefficient of friction of the coating materials 8 and 10 is set to be low, the sliding speed becomes low in the low frequency range.
The frictional force caused by rolling on the surfaces of the rolling rubber 9, the outer cylinder 7, and the core metal 11 is large, and the damping force becomes large.On the other hand, the sliding speed becomes high in the high frequency range, so the rolling rubber 9 is difficult to roll, and the rolling rubber 9 itself If the internal damping is made small, the frictional force becomes small and the dynamic magnification decreases as a result. Further, it is also possible to change the characteristics by selecting the friction coefficient.
このような構成によれば、周波数と動倍率の関
係が第２図のＡのような曲線となり、１〜２Hzで
大きな減衰を与え、車体のびびり振動などのごつ
ごつした振動に相当する８〜10Hz付近では動倍率
を下げ、ごつごつした振動が伝わりにくくなる。
したがつて、十分なダンピングを与えるととも
に、ごつごつした振動を車体へ伝えることのな
い、乗心地の良好なばね装置を得ることができ
る。 With such a configuration, the relationship between frequency and dynamic magnification becomes a curve like A in Figure 2, which provides large attenuation at 1 to 2 Hz and at 8 to 10 Hz, which corresponds to rough vibrations such as chattering vibrations of the car body. The dynamic magnification is lowered in nearby areas, making it difficult for rough vibrations to be transmitted.
Therefore, it is possible to obtain a spring device that provides sufficient damping, does not transmit rough vibrations to the vehicle body, and has good riding comfort.
また、前記実施例においては、外筒および芯金
に所望の摩擦係数を有するコーテイング材をコー
テイングするだけであつて、前記各部材以外の部
材を設置する必要もなく構造的に従来となんら異
なることがないため、簡単な構成で、かつ、部品
点数を増加させることもなく容易に所定の特性を
有した軸箱支持装置を提供することができる。 Further, in the above embodiment, the outer cylinder and the core metal are simply coated with a coating material having a desired coefficient of friction, and there is no need to install any members other than the above-mentioned members, and there is no difference in structure from the conventional one. Therefore, it is possible to provide an axle box support device that has a simple configuration and has predetermined characteristics without increasing the number of parts.
以上説明したように本発明によれば、ローリン
グゴムと接触する外筒および芯金の表面に、接触
する両者間の摩擦係数を決定するコーテイング材
をコーテイングしたことにより、ローリングゴム
を用いて車軸上に台車枠を弾性支持する軸箱支持
装置において、台車の仕様に合わせて減衰力およ
び動倍率を簡単な構造で任意に設定することがで
き、乗心地の向上を図ることができる。 As explained above, according to the present invention, the surfaces of the outer cylinder and core metal that come into contact with the rolling rubber are coated with a coating material that determines the coefficient of friction between the two in contact, so that rolling rubber can be used to In an axle box support device that elastically supports a bogie frame, the damping force and dynamic magnification can be arbitrarily set according to the specifications of the bogie with a simple structure, and riding comfort can be improved.
第１図は従来のローリングゴムばねを用いた台
車の側面図、第２は動倍率と周波数との関係を従
来例および本発明の実施例について示したグラ
フ、第３図は第１図のローリングゴムばねの断面
図、第４図は本発明による軸箱支持装置のローリ
ングゴムばねの一実施例を示す断面図である。
１……車体、３……台車枠、４……ローリング
ゴムばね、５……軸箱、７……外筒、８，１０…
…コーテイング材、９……ローリングゴム、１１
……芯金。
Fig. 1 is a side view of a cart using a conventional rolling rubber spring, Fig. 2 is a graph showing the relationship between dynamic magnification and frequency for the conventional example and the embodiment of the present invention, and Fig. 3 is a side view of a cart using a conventional rolling rubber spring. Sectional view of rubber spring FIG. 4 is a cross-sectional view showing one embodiment of a rolling rubber spring of an axle box support device according to the present invention. 1... Vehicle body, 3... Bogie frame, 4... Rolling rubber spring, 5... Axle box, 7... Outer cylinder, 8, 10...
...Coating material, 9...Rolling rubber, 11
... Core metal.
Claims (1)
面が釣鐘状に形成された外筒と、外面が円錐状に
形成された芯金とからなり、前記心金に前記ロー
リングゴムを介して前記外筒を嵌合させ台車枠を
車軸上に弾性支持する鉄道車両の軸箱支持装置に
おいて、前記外筒および芯金の前記ローリングゴ
ムとの接触面に、該ローリングゴムとの間の摩擦
係数を決定するコーテイング材をコーテイングし
たことを特徴とする鉄道車両の軸箱支持装置。1 Consisting of a rolling rubber formed in a ring shape, an outer cylinder having a bell-shaped inner surface, and a core metal having a conical outer surface, the outer cylinder is connected to the core metal through the rolling rubber. In an axle box support device for a railway vehicle that elastically supports a bogie frame on an axle by fitting the bogie frame onto the axle, a friction coefficient between the outer cylinder and the rolling rubber is determined on the contact surface of the outer cylinder and the core metal with the rolling rubber. An axle box support device for a railway vehicle characterized by being coated with a coating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16101181A JPS5863567A (en) | 1981-10-12 | 1981-10-12 | Supporter for journal box for railway rolling stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16101181A JPS5863567A (en) | 1981-10-12 | 1981-10-12 | Supporter for journal box for railway rolling stock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5863567A JPS5863567A (en) | 1983-04-15 |
| JPH0419061B2 true JPH0419061B2 (en) | 1992-03-30 |
Family
ID=15726877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16101181A Granted JPS5863567A (en) | 1981-10-12 | 1981-10-12 | Supporter for journal box for railway rolling stock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5863567A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6276071U (en) * | 1985-10-31 | 1987-05-15 | ||
| DE3606325A1 (en) * | 1986-02-27 | 1987-09-03 | Talbot Waggonfab | UNDERCARRIAGE SUSPENSION FOR RAIL VEHICLES |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5583657A (en) * | 1978-12-18 | 1980-06-24 | Kawasaki Heavy Ind Ltd | Guide for axle box of vehicle |
| JPS6033084Y2 (en) * | 1979-12-18 | 1985-10-02 | 日本車輌製造株式会社 | Railroad vehicle axle box support device |
-
1981
- 1981-10-12 JP JP16101181A patent/JPS5863567A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5863567A (en) | 1983-04-15 |
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