JPH0623864U

JPH0623864U - Railcar axle box support device

Info

Publication number: JPH0623864U
Application number: JP7117791U
Authority: JP
Inventors: 與志佐藤; 博山田
Original assignee: 住友金属工業株式会社; 東海ゴム工業株式会社
Priority date: 1991-08-09
Filing date: 1991-08-09
Publication date: 1994-03-29

Abstract

(57)【要約】【目的】構成部材の減少による装置の軽量化と乗り心
地の向上を図る。【構成】軸箱１の上面と側はり５の端部との間に、こ
ろがり変形を生じる筒形のロールゴム３と軸箱１の上面
に設けた支柱７に嵌着したロールゴム受け内筒８と側は
り５に取着したロールゴム受け外筒９との間にころがり
変形を生じる筒形のロールゴム３をはめ、これに同心し
てコイルばね２を組合せてなる１個の軸ばね１を設け、
側はり５の中央寄りに設けた支持金物１５と軸箱４の内
側面に突設した支持金物１６との間を、両端にゴムブッ
シュ１３を介在した１本のリンク１２で連接してなる。【効果】大部分の荷重をコイルばねで受け、ロールゴ
ムにより上下方向振動を適度に減衰することにより、乗
り心地が向上する。また、ロールゴムにより左右方向の
力をうけるため、他に特別な装置を必要としない。 (57) [Abstract] [Purpose] To reduce the weight of the device and improve riding comfort by reducing the number of components. [Structure] Between the upper surface of the axle box 1 and the end portion of the side beam 5, a cylindrical roll rubber 3 which causes rolling deformation and a roll rubber receiving inner tube 8 fitted to a column 7 provided on the upper surface of the axle box 1. A cylindrical roll rubber 3 which causes rolling deformation is fitted between the side beam 5 and the roll rubber receiving outer cylinder 9, and one shaft spring 1 formed by combining a coil spring 2 concentrically with the roll rubber 3 is provided.
A support metal piece 15 provided near the center of the side beam 5 and a support metal piece 16 projecting from the inner surface of the axle box 4 are connected by a single link 12 having rubber bushes 13 at both ends. [Effect] Most of the load is received by the coil spring and the vertical vibration is appropriately damped by the roll rubber, so that the riding comfort is improved. Further, since the roll rubber receives the force in the left-right direction, no special device is required.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

この考案は、鉄道車両用軸箱支持装置の改良に関する。 The present invention relates to an improvement of a rail car axle box support device.

【０００２】[0002]

【従来の技術】[Prior art]

鉄道車両用台車における輪軸の両端を支持する軸受を納めた軸箱は、前後方向の動きを押え、左右方向には横圧を緩和する余裕をもたせ、上下方向には緩衝作用を作動させるように仕組まれた軸箱支持装置により支持されている。この軸箱支持装置には軸箱守方式、軸はり方式、板ばね方式、リンクアーム方式、ゴム方式など種々のものがある。 The axle box that contains the bearings that support both ends of the wheel axle of a bogie for railway vehicles is designed to hold back and forth movements, allow a margin for lateral pressure relief in the left and right directions, and act as a cushioning action in the up and down directions. It is supported by the axle box support device built in. There are various types of axle box support devices such as an axle box guard type, an axial beam type, a leaf spring type, a link arm type and a rubber type.

【０００３】上記軸箱支持装置の中で、上下方向の支持をコイルばねで行なう方式では、上下方向振動の減衰が付加できないため、ダンパーなどの減衰装置を並設する必要がある。そのため、構造が複雑化し、また高価となる。In the above-mentioned axle box supporting device, in the method of supporting the vertical direction by the coil spring, the damping of the upward and downward vibration cannot be added, and therefore it is necessary to install the damping devices such as dampers in parallel. Therefore, the structure becomes complicated and the cost becomes high.

【０００４】上下方向の支持を円錐ゴムやロールゴムなどのゴムのみで行なう方式では、長期の使用においてゴムの老化により性能が低下する恐れがある。In a system in which vertical support is performed only with rubber such as conical rubber or roll rubber, there is a possibility that performance deteriorates due to aging of rubber during long-term use.

【０００５】また、軸箱上にコイルばねを設けるとともに軸箱の内側端面と側はりの間および軸箱の外側端面と側はりの間に円筒ゴムを並設した方式では、大部分の荷重をコイルばねで負担し、上下方向振動の減衰を円筒ゴムで行なうことができるが、装置が大型化し重量が増大する。Further, in the method in which the coil spring is provided on the axle box and the cylindrical rubber is arranged in parallel between the inner end surface and the side beam of the axle box and between the outer end surface and the side beam of the axle box, most of Although the load can be borne by the coil spring and the vertical vibration can be damped by the cylindrical rubber, the device becomes large and the weight increases.

【０００６】さらに、山形断面のゴムと鋼板とを積層接着したブロックを台形状の軸箱と下方に開いた傾斜面をもつ軸箱案内の間に係合させた方式では、ブロックの上下方向の許容変位量が大きくとれないため、上下方向の変位量が制限される。Further, in a system in which a block obtained by laminating and adhering rubber having a chevron cross section and a steel plate is engaged between a trapezoidal axial box and an axial box guide having an inclined surface opened downward, the upper and lower sides of the block are Since the allowable amount of displacement in the vertical direction cannot be large, the amount of displacement in the vertical direction is limited.

【０００７】[0007]

【考案が解決しようとする課題】上記のごとく、従来の軸箱支持装置は、いずれも一長一短があり、上下方向に適度な振動減衰作用を有するとともに長期間性能が低下することなく耐久性があり、かつ構造が比較的簡単で軽量化を図つたものはなかった。As described above, each of the conventional axle box supporting devices has advantages and disadvantages, has an appropriate vibration damping action in the vertical direction, and has durability for a long time without deterioration in performance. In addition, there was no one with a relatively simple structure and light weight.

【０００８】この考案は、かかる現状にかんがみ、上下方向に適度の振動減衰作用を有する軸ばねにより荷重を負担するとともに、左右方向の横圧を緩和し、前後方向は１本のリンクで支持し、構造が比較的簡単で重量の増大を見ない軸箱支持装置を提供するものである。In view of the current situation, the present invention bears a load by a shaft spring having an appropriate vibration damping action in the vertical direction, relaxes the lateral pressure in the horizontal direction, and supports it with one link in the front-back direction. The purpose of the present invention is to provide an axle box supporting device which has a relatively simple structure and does not increase in weight.

【０００９】[0009]

【課題を解決するための手段】[Means for Solving the Problems]

上記目的を達成するため、この考案の軸箱支持装置は、軸箱の上面と台車の側はり端部との間に、ころがり変形を生じる筒形のロールゴムとコイルばねの組合せからなる１個の軸ばねを設け、側はりの中央寄りと軸箱の内側面との間を、両端にゴムブッシュを介在した１本のリンクで連接するのである。 To achieve the above object, the axle box supporting device of the present invention comprises a combination of a cylindrical roll rubber that causes rolling deformation and a coil spring between the upper surface of the axle box and the side beam end of the bogie. The shaft spring is provided, and one link having rubber bushes at both ends connects the central portion of the side beam to the inner surface of the shaft box.

【００１０】[0010]

【作用】[Action]

軸箱上に設けたころがり変形を生じる筒形のロールゴムとコイルばねとの組合せからなる１個の軸ばねで荷重を支持するから、荷重の大部分はコイルばねで負担しながら、ロールゴムの上下方向変位により適度の振動減衰を与えることができ、上下方向に柔らかな支持ができる。 Since the load is supported by a single shaft spring that is a combination of a cylindrical roll rubber that causes rolling deformation and a coil spring that is installed on the axle box, the coil spring bears most of the load while By vertically displacing, appropriate vibration damping can be given, and soft support can be provided in the vertical direction.

【００１１】ロールゴムは左右方向の横圧を受け緩衝できるから、輪軸の左右方向の支持をするための特別な機構を設ける必要がない。また、ロールゴムには車両を起動する際に軸受抵抗などにより発生する軸箱の回転を阻止する作用がある。Since the roll rubber can absorb the lateral pressure in the left-right direction, it is not necessary to provide a special mechanism for supporting the wheel axle in the left-right direction. Further, the roll rubber has a function of preventing rotation of the axle box which is generated by bearing resistance when the vehicle is started.

【００１２】前後方向の支持は両端にゴムブッシュを介在した１本のリンクで行なわれるため、軸箱は前後方向に確実に固定されるとともに衝撃を緩衝することができる。Since the support in the front-rear direction is performed by one link having rubber bushes at both ends, the axle box can be reliably fixed in the front-rear direction and shock can be buffered.

【００１３】[0013]

【実施例】この考案の実施例を図面に基いて説明する。図１は、この考案を実施した鉄道車両用台車の軸箱支持装置部分を示す正面図、図２は同じく平面図である。軸ばね１は、コイルばね２の中にロールゴム３を収容した組合せ体からなり、左右の軸箱４上にそれぞれ１個を設置する。そして、側はり５の中央寄りと軸箱４の内側面との間を両端に筒状のゴムブッシュ１３を有する１本のリンク１２により連接する。Embodiment An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an axle box supporting device portion of a bogie for a railway vehicle embodying the present invention, and FIG. 2 is a plan view of the same. The axial spring 1 is composed of a combination body in which the roll rubber 3 is housed in the coil spring 2, and one is installed on each of the left and right axle boxes 4. Then, a space between the center of the side beam 5 and the inner side surface of the axle box 4 is connected by one link 12 having a cylindrical rubber bush 13 at both ends.

【００１４】上記軸ばね１は次のように構成される。すなわち、軸箱４の上面に設けたばね座６の中心に支柱７を立設し、これにロールゴム受け内筒８を嵌着しボルトで固定する。一方、側はり５の端部に下向きに設けたばね座１１に、上記ロールゴム受け内筒８と同心したロールゴム受け外筒９を設け、ロールゴム受け内筒８とロールゴム受け外筒９との間の空間に筒状のロールゴム３をころがり変位を自在にしてはめる。そして、ロールゴム受け外筒９の外側にコイルばね２をはめ、上下ばね端をばね座６、１１により受けて組立てられる。The shaft spring 1 is configured as follows. That is, the column 7 is erected at the center of the spring seat 6 provided on the upper surface of the axle box 4, and the roll rubber receiving inner cylinder 8 is fitted and fixed thereto by the bolt. On the other hand, a spring seat 11 provided downwardly at the end of the side beam 5 is provided with a roll rubber receiving outer cylinder 9 concentric with the roll rubber receiving inner cylinder 8 and between the roll rubber receiving inner cylinder 8 and the roll rubber receiving outer cylinder 9. Roll the cylindrical roll rubber 3 into the space by rolling it freely and fit it. Then, the coil spring 2 is fitted to the outside of the roll rubber receiving outer cylinder 9, and the upper and lower spring ends are received by the spring seats 6 and 11 to be assembled.

【００１５】リンク１２は、側はり５の中央寄りに設けた支持金物１５に台車の前後方向に対し水平横向きに設けた支軸１９に、リンク端に設けた一方の筒状のゴムブッシュ１３をはめて側はり５に接続し、同様に軸箱４の内側面に突設した支持金物１６に設けた支軸１８に他方の筒状のゴムブッシュ１３をはめて軸箱４に接続し、軸箱４を前後方向に支持する。The link 12 includes a support metal piece 15 provided near the center of the side beam 5 and a support shaft 19 provided horizontally horizontally with respect to the front-rear direction of the carriage, and one cylindrical rubber bush 13 provided at the end of the link. It is connected to the side beam 5 by fitting, and similarly, the other tubular rubber bush 13 is fitted to the support shaft 18 provided on the supporting metal piece 16 projecting on the inner surface of the axle box 4, and connected to the axle box 4. The axle box 4 is supported in the front-rear direction.

【００１６】図３は、この考案の他の実施例を示したものであり、図１とは軸箱１４の型式が相違しており、軸箱１４上に支柱１７が直接に突設している点が異なるだけで、軸ばねとしての機構は同じである。FIG. 3 shows another embodiment of the present invention, in which the model of the axle box 14 is different from that of FIG. 1, and a column 17 is directly projected on the axle box 14. The mechanism as a shaft spring is the same, except that it is different.

【００１７】上記構成により、軸ばね１が受ける荷重の大部分はコイルばね２により負担し、上下方向振動に伴う変位はロールゴム３により適度の減衰が与えられる。したがつて、コイルばね２とロールゴム３との協同作用により乗り心地が向上する。With the above configuration, most of the load received by the shaft spring 1 is carried by the coil spring 2, and the displacement due to the vertical vibration is appropriately damped by the roll rubber 3. Therefore, the ride comfort is improved by the cooperative action of the coil spring 2 and the roll rubber 3.

【００１８】軸箱の前後方向は１本のリンク１２で支持することにより、コイルばね２とロールゴム３の組合せからなる軸ばね１は軸箱上に１個を設置するだけで、従来の軸箱の前後２箇所にコイルばね、または円筒ゴムを配設した方式と同じ作用をさせることができる。By supporting a single link 12 in the front-rear direction of the axle box, only one axle spring 1 composed of a combination of the coil spring 2 and the roll rubber 3 is installed on the axle box, and the conventional axis It is possible to achieve the same effect as a system in which coil springs or cylindrical rubbers are arranged at two front and rear positions of the box.

【００１９】また、従来の１本リンク式軸箱支持装置では、起動時の軸受抵抗による軸箱の回転を防止するため、軸ばねを軸箱の前後に一対設けたウイング式とする必要があるが、この考案の軸ばね１ではロールゴム３が軸箱の回転を阻止する作用があり、軸ばね１は軸箱上に１個を設置するだけでよい。したがって、部材が減少し、ばね下荷重の軽量化に役立つ。Further, in the conventional one-link type box housing support device, in order to prevent the rotation of the box housing due to the bearing resistance at the time of starting, it is necessary to use a wing type in which a pair of shaft springs are provided in front of and behind the box housing. However, in the shaft spring 1 of the present invention, the roll rubber 3 has the function of preventing the rotation of the shaft box, and only one shaft spring 1 needs to be installed on the shaft box. Therefore, the number of members is reduced, which helps to reduce the unsprung load.

【００２０】この考案の軸箱支持装置の組立ては、上下方向の荷重を支持する部材を積み上げて組立てたのち、最後にリンクを取付けるため、組立て作業が容易である。In the assembly of the axle box supporting device of the present invention, the members supporting the load in the vertical direction are piled up and assembled, and the link is finally attached, so that the assembly work is easy.

【００２１】[0021]

【考案の効果】[Effect of device]

コイルばねとロールゴムを同心に組合せた軸ばねにより荷重の大部分をコイルばねで受け、ロールゴムにより上下方向振動に対し適度の減衰が与えられるから乗り心地が向上する。また、構成部材の減少により装置の軽量化ならびに組立て作業の容易化が図れる。 Most of the load is received by the coil spring by the shaft spring that is a concentric combination of the coil spring and the roll rubber, and the roll rubber provides appropriate damping for vertical vibrations, improving ride comfort. In addition, the reduction in the number of components makes it possible to reduce the weight of the device and facilitate the assembling work.

【図面の簡単な説明】[Brief description of drawings]

【図１】この考案の一実施例による鉄道車両用台車の軸
箱装置を軸ばね部分のみは断面して示す全体の正面図で
ある。FIG. 1 is an overall front view showing an axle box device for a bogie for a railway vehicle according to an embodiment of the present invention, with only an axial spring portion being shown in section.

【図２】図１の平面図である。FIG. 2 is a plan view of FIG.

【図３】この考案の他の実施例における鉄道車両用台車
の軸箱装置を軸ばね部分のみは断面して示す全体の正面
図である。FIG. 3 is an overall front view showing the axle box device of a bogie for a railway vehicle in another embodiment of the present invention, with only the axle spring portion being shown in section.

【符号の説明】[Explanation of symbols]

１軸ばね２コイルばね３ロールゴム４軸箱５側はり６ばね座７支柱８ロールゴム受け内筒９ロールゴム受け外筒１１ばね座１２リンク１３ゴムブッシュ１４軸箱１５支持金物１６支持金物１７支柱１８支軸１９支軸 1 Shaft Spring 2 Coil Spring 3 Roll Rubber 4 Shaft Box 5 Side Beam 6 Spring Seat 7 Strut 8 Roll Rubber Receiving Inner Tube 9 Roll Rubber Receiving Outer Tube 11 Spring Seat 12 Link 13 Rubber Bushing 14 Shaft Box 15 Support Hardware 16 Support Hardware 17 Strut 18 Support Axis 19 Support shaft

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

【請求項１】軸箱上面と側はり端部との間に、ころが
り変形を生じる筒形のロールゴムとコイルばねの組合せ
からなる１個の軸ばねを設け、側はりの中央寄りと軸箱
内側面との間を、両端にゴムブッシュを介在した１本の
リンクで連接した鉄道車両用軸箱支持装置。1. A shaft spring, which is a combination of a cylindrical roll rubber and a coil spring that causes rolling deformation, is provided between the upper surface of the shaft box and the end of the side beam. A rail car axle box support device in which one side link is connected to the side surface with a rubber bush at both ends.