JP2003039904A - Iron wheel structure of track working vehicle - Google Patents

Iron wheel structure of track working vehicle

Info

Publication number
JP2003039904A
JP2003039904A JP2001227881A JP2001227881A JP2003039904A JP 2003039904 A JP2003039904 A JP 2003039904A JP 2001227881 A JP2001227881 A JP 2001227881A JP 2001227881 A JP2001227881 A JP 2001227881A JP 2003039904 A JP2003039904 A JP 2003039904A
Authority
JP
Japan
Prior art keywords
wheel
ring
bolts
track
axle
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.)
Pending
Application number
JP2001227881A
Other languages
Japanese (ja)
Inventor
Nobuyuki Yamaguchi
信之 山口
Yoshinori Kuwabara
義則 桑原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aichi Corp
Original Assignee
Aichi Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aichi Corp filed Critical Aichi Corp
Priority to JP2001227881A priority Critical patent/JP2003039904A/en
Publication of JP2003039904A publication Critical patent/JP2003039904A/en
Pending legal-status Critical Current

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  • Forklifts And Lifting Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an iron wheel structure of a track working vehicle capable of ensuring the electric insulation between an inner wheel supported by an axle and an outer ring in direct contact with a rail, and reliably preventing any short circuit of right and left rails. SOLUTION: The inner metal ring 70 supported by the axle S and the outer metal wheel 80 located on an outer circumferential part of the inner wheel 70 and in contact with the rail R are not directly coupled with each other, but an intermediate wheel 90 formed of an insulating material is provided between the wheels 70 and 80, and the inner wheel 70 and the intermediate wheel 90, and the outer wheel 80 and the intermediate wheel 90 are respectively coupled with each other via bolts separated from each other (a first bolt B1 and a second bolt B2). These bolts are extended parallel to the axle S, and the first bolts B1 to couple the inner wheel 70 with the intermediate wheel 90, and the second bolts B2 to couple the outer wheel 80 with the intermediate wheel 90 are alternately and continuously disposed in a circular manner around the axle S.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、軌道上を走行して
トロリ線の保守作業等を行う軌道作業車の鉄輪構造に関
する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iron wheel structure for a track work vehicle that travels on a track and performs maintenance work for trolley wires.

【0002】[0002]

【従来の技術】軌道作業車は軌道走行用の鉄輪を備えて
軌道上を走行し、走行体上に備えた作業台等の作業装置
を用いて軌道沿線での作業、例えばトロリ線の保守作業
等を行う。このような軌道作業車の例としては鉄輪のほ
かにタイヤ車輪も備えて道路走行もできるようにした軌
陸作業車が知られている。このような軌陸作業車では道
路走行時には鉄輪を格納してタイヤ車輪で走行し、軌道
走行時には鉄輪を張り出してタイヤ車輪或いは鉄輪を駆
動して走行する。
2. Description of the Related Art A tracked vehicle is equipped with iron wheels for running on a track and travels along a track, and a work device such as a workbench provided on the running body is used to perform work along the track, for example, maintenance work on a trolley wire. And so on. As an example of such a track work vehicle, a tracked work vehicle is known in which tire wheels are provided in addition to iron wheels to enable road traveling. In such a railroad work vehicle, the iron wheels are stored and traveled by the tire wheels when traveling on the road, and the iron wheels are extended to drive the tire wheels or the iron wheels when traveling on the track.

【0003】このような軌道作業車においては、左右の
鉄輪及びこれを繋ぐ車軸を介して左右の軌道が短絡され
ないようにする必要があり、例えば特開平8−3187
20号公報には、車軸に支持された内輪とこの内輪の外
周部に位置して軌道に直接接触する外輪との間に電気絶
縁性材料からなる中間部材を介装し、これら両輪をボル
ト結合することにより両輪間の電気絶縁性を保つように
した鉄輪構造が開示されている。ここで、ボルトは両輪
及び中間部材に亘って設けられたカラーに貫装取り付け
されるが、内輪と外輪との間の電気絶縁効果を高めるた
め、このカラーは電気絶縁性材料から構成されるように
なっている。
In such a track work vehicle, it is necessary to prevent the left and right tracks from being short-circuited via the left and right iron wheels and the axles connecting them, for example, Japanese Patent Laid-Open No. 8-3187.
No. 20, gazette discloses that an intermediate member made of an electrically insulating material is interposed between an inner ring supported by an axle and an outer ring located at an outer peripheral portion of the inner ring and directly contacting a raceway, and these two wheels are bolted to each other. By doing so, an iron wheel structure is disclosed in which the electric insulation between the two wheels is maintained. Here, the bolt is mounted through a collar provided over both wheels and the intermediate member, but in order to enhance the electrical insulation effect between the inner ring and the outer ring, the collar is made of an electrically insulating material. It has become.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、このよ
うな従来の鉄輪構造においては、外輪と内輪及びボルト
は中間部材とカラーとにより電気的に絶縁されているも
のの、雨水等がボルトの近傍、例えばカラー内に浸入し
てきたような場合には外輪と内輪とは電気的に繋がって
しまい、左右の軌道が短絡してしまう虞があった。
However, in such a conventional iron ring structure, although the outer ring, the inner ring and the bolt are electrically insulated by the intermediate member and the collar, rainwater and the like are present near the bolt, for example. If it enters the collar, the outer ring and the inner ring are electrically connected, and the left and right tracks may be short-circuited.

【0005】本発明はこのような問題に鑑みてなされた
ものであり、車軸に支持された内輪と、直接軌道と接す
る外輪との間の充分な電気絶縁性を確保し、左右の軌道
を短絡させてしまう事態を確実に防止することが可能な
構成の軌道作業車の鉄輪構造を提供することを目的とし
ている。
The present invention has been made in view of the above problems, and ensures sufficient electrical insulation between the inner ring supported by the axle and the outer ring in direct contact with the raceway to short-circuit the left and right raceways. It is an object of the present invention to provide an iron wheel structure for a track work vehicle having a configuration capable of reliably preventing such a situation.

【0006】[0006]

【課題を解決するための手段】このような目的を達成す
るため、本発明に係る軌道作業車の鉄輪構造において
は、車軸に支持された金属製の内輪と、この内輪の外周
部に位置して軌道に接触する金属製の外輪とを直接結合
するのではなく、これら両輪の間に電気絶縁性材料から
なる中間輪を設け、内輪と中間輪、外輪と中間輪をそれ
ぞれ互いに離間したボルトで結合(ボルト同士が接触し
ないようにして内輪と中間輪、外輪と中間輪をそれぞれ
結合)するようにしている。このため雨水等がボルト近
傍に侵入しても内輪と外輪とが電気的に繋がることはな
く、左右の軌道が短絡する事態を確実に防止することが
できる。
In order to achieve such an object, in an iron wheel structure of a track work vehicle according to the present invention, a metal inner ring supported on an axle and an outer ring portion of the inner ring are provided. Instead of directly connecting the metal outer ring that comes into contact with the raceway, an intermediate ring made of an electrically insulating material is provided between these two wheels, and the inner ring and the intermediate ring, and the outer ring and the intermediate ring are separated by bolts. The inner ring and the intermediate ring are joined together so that the bolts do not come into contact with each other, and the outer ring and the intermediate ring are joined together. Therefore, even if rainwater or the like enters near the bolt, the inner ring and the outer ring are not electrically connected to each other, and it is possible to reliably prevent a situation in which the left and right tracks are short-circuited.

【0007】ここで、ボルトはそれぞれ車軸と平行に延
びて設けられており、内輪と中間輪とを結合するボルト
(例えば、実施形態における第1ボルトB1)と、外輪
と中間輪とを結合するボルト(例えば、実施形態におけ
る第2ボルトB2)とが車軸を中心とする円状に交互に
並んで配設されていることが好ましい。このような構成
であれば、内輪、中間輪、外輪の三輪をバランス良く締
結することができ、これら三輪間の荷重(トルク)伝達
をスムーズに行わせることができる。
Here, the bolts are provided so as to extend parallel to the axles, respectively. The bolts (for example, the first bolt B1 in the embodiment) connecting the inner ring and the intermediate ring, and the outer ring and the intermediate wheel are connected. It is preferable that the bolts (for example, the second bolts B2 in the embodiment) are arranged alternately in a circle centered on the axle. With such a configuration, the three wheels of the inner ring, the intermediate wheel, and the outer ring can be fastened in a well-balanced manner, and the load (torque) can be smoothly transmitted between these three wheels.

【0008】[0008]

【発明の実施の形態】以下、図面を参照して本発明の好
ましい実施形態について説明する。図2は、本発明に係
る鉄輪構造を備えた軌道作業車の一例としての軌陸作業
車1の側面図を示している。この軌陸作業車1は、運転
席11の後方に荷台12を有してタイヤ車輪13により
道路走行するトラック式の走行体10と、荷台12の後
方に設けられた旋回台20と、この旋回台20から上方
に延びた支柱21に上下方向揺動自在に取り付けられた
伸縮ブーム30と、この伸縮ブーム30の先端部に取り
付けられた作業台40とを有して構成されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows a side view of a railroad work vehicle 1 as an example of a track work vehicle equipped with a steel wheel structure according to the present invention. The railroad work vehicle 1 has a truck 12 having a cargo bed 12 behind the driver's seat 11 and traveling on roads by tire wheels 13, a revolving platform 20 provided behind the cargo platform 12, and a revolving platform 20. The telescopic boom 30 is attached to a column 21 extending upward from 20 so as to be swingable in the vertical direction, and a workbench 40 attached to the tip of the telescopic boom 30.

【0009】旋回台20は走行体10内に設けられた旋
回モータ14を油圧駆動することにより水平面内で旋回
させることが可能であり、これにより伸縮ブーム30全
体を旋回動作させることができる。伸縮ブーム30は複
数のブーム部材が入れ子式に構成されており、内蔵され
た伸縮シリンダ31を油圧駆動することにより長手方向
に伸縮動作させることができる。伸縮ブーム30と支柱
21との間には起伏シリンダ22が跨設されており、こ
の起伏シリンダ22を油圧駆動することにより、伸縮ブ
ーム30全体を上下面内で起伏動作させることができ
る。
The swivel base 20 can swivel in a horizontal plane by hydraulically driving a swivel motor 14 provided in the traveling body 10, whereby the telescopic boom 30 as a whole can be swiveled. The telescopic boom 30 is formed by nesting a plurality of boom members, and can be telescopically moved in the longitudinal direction by hydraulically driving the built-in telescopic cylinder 31. A hoisting cylinder 22 is laid between the telescopic boom 30 and the support column 21, and by hydraulically driving the hoisting cylinder 22, the entire telescopic boom 30 can be hoisted in the upper and lower planes.

【0010】伸縮ブーム30の先端部には図示しないレ
ベリング装置の作用により常時垂直に保持される垂直ポ
スト32が設けられており、作業台40はこの垂直ポス
ト32に回転自在に支承されている。作業台40内には
首振りモータ41が設けられており、これを油圧駆動す
ることにより作業台40全体を垂直ポスト32まわりに
旋回動作、すなわち首振り動作させることができる。な
お、垂直ポスト32は前述のように常時垂直に保持され
るため、作業台40の床面は常に水平姿勢が保たれる。
A vertical post 32, which is always held vertically by the action of a leveling device (not shown), is provided at the tip of the telescopic boom 30, and the workbench 40 is rotatably supported by the vertical post 32. A swinging motor 41 is provided in the workbench 40, and by hydraulically driving the workbench 40, the entire workbench 40 can be swung about the vertical post 32, that is, swung. Since the vertical post 32 is always held vertically as described above, the floor surface of the workbench 40 is always kept horizontal.

【0011】伸縮ブーム30の起伏、伸縮、旋回動作及
び作業台40の首振り動作は、作業台40に搭乗した作
業者が、この作業台40に設置された上部操作装置51
に備えられた作業台移動操作レバー(図示せず)を操作
することにより行うことができる。このため作業台40
上の作業者は、自らのレバー操作により作業台40を所
望の位置に移動させて必要な高所作業を行うことが可能
である。
The operation of the telescopic boom 30 for ups and downs, extension and retraction, and the swinging motion of the workbench 40 are performed by an operator on the workbench 40 by operating the upper operating device 51 installed on the workbench 40.
This can be done by operating a workbench movement operation lever (not shown) provided in the. Therefore, the workbench 40
The operator above can move the work table 40 to a desired position by his / her lever operation and perform necessary work at a high place.

【0012】走行体10の前後左右4箇所、各タイヤ車
輪13の後方には軌道走行用の鉄輪60が鉄輪張出格納
装置61を介して取り付けられている。この鉄輪張出格
納装置61は、走行体10の下部に揺動自在に取り付け
られて鉄輪60を回転自在に支持するブラケット62
と、このブラケット62を張り出し格納させる鉄輪張出
格納シリンダ63とを備えて構成されている。走行体1
0の後部には後部操作装置52が設けられており、ここ
に備えられた鉄輪張出格納操作レバー(図示せず)を操
作することにより、各鉄輪60の張り出し動作と格納動
作とを行うことができる。
Iron wheels 60 for track running are attached to the front and rear left and right parts of the traveling body 10 and to the rear of each tire wheel 13 via iron wheel overhang storage devices 61. This iron wheel overhanging / storing device 61 is attached to a lower portion of the traveling body 10 so as to be swingable, and a bracket 62 for rotatably supporting the iron wheel 60.
And an iron wheel overhang storage cylinder 63 for overhanging and storing the bracket 62. Traveling body 1
0 is provided with a rear operation device 52, and an iron wheel overhanging / storing operation lever (not shown) provided therein is operated to perform an overhanging operation and a retracting operation of each iron wheel 60. You can

【0013】各鉄輪60はブラケット62に保持された
走行モータ(油圧モータ。図示せず)により回転駆動さ
れる。各走行モータの動作制御は運転席11内若しくは
上部操作装置51に備えられた走行レバー(図示せず)
を操作することにより行うことができる。このため作業
者は、運転席11からは勿論のこと、作業台40上から
も本軌陸作業車1を軌道R上で走行させることが可能で
ある。
Each iron wheel 60 is rotationally driven by a traveling motor (hydraulic motor, not shown) held by a bracket 62. The operation control of each traveling motor is performed by a traveling lever (not shown) provided in the driver's seat 11 or in the upper operating device 51.
It can be performed by operating. For this reason, the worker can drive the main track land vehicle 1 on the track R not only from the driver's seat 11 but also from the work platform 40.

【0014】また、図2に示すように走行体10の下部
には本軌陸作業車1を道路と軌道Rとの間で載せ換え移
動させるための転車台15が下方に突出して設けられて
いる。この転車台15は走行体10に内蔵された転車台
張出格納シリンダ16の伸縮動作により下方への張り出
しと上方への格納が可能になっている。この転車台張出
格納シリンダ16の伸縮動作は後部操作装置52に備え
られた転車台張出格納操作レバー(図示せず)を操作す
ることにより行うことができる。
Further, as shown in FIG. 2, a rolling base 15 for projecting downward is provided at the lower part of the traveling body 10 for relocating and moving the main rail work vehicle 1 between the road and the track R. . The turntable 15 can be extended downward and stored upward by the expansion and contraction operation of the turntable overhang storage cylinder 16 built in the traveling body 10. The extension / contraction operation of the turntable extension / retraction cylinder 16 can be performed by operating a turntable extension / retraction operation lever (not shown) provided in the rear operation device 52.

【0015】次に、この軌陸作業車1を用いて軌道R上
での高所作業、例えばトロリ線の保守点検作業を行う手
順について説明する。このような高所作業を行うには、
先ず作業者が運転席11から道路走行運転を行って本軌
陸作業車1を作業現場最寄りの踏切へ移動させる。ここ
で、道路上を移動するときには鉄輪60は上方の格納位
置に位置させた状態とし(図1において二点鎖線で示す
鉄輪60参照)、タイヤ車輪13により走行する。な
お、このとき伸縮ブーム30は全縮状態で前方に倒伏さ
せ、荷台12の前方に設けられたブーム受け17に載置
させた状態にしておく。
Next, a procedure for performing high-altitude work on the track R, for example, maintenance and inspection work of the trolley wire, using the railroad work vehicle 1 will be described. To perform such work at height,
First, an operator drives the vehicle from the driver's seat 11 on a road to move the railroad land vehicle 1 to a railroad crossing closest to the work site. Here, when moving on the road, the iron wheel 60 is placed in the upper storage position (see the iron wheel 60 shown by the chain double-dashed line in FIG. 1), and the tire wheels 13 travel. At this time, the telescopic boom 30 is fully collapsed and is laid down forward to be placed on the boom receiver 17 provided in front of the luggage carrier 12.

【0016】作業現場最寄りの踏切に到着したら本軌陸
作業車1を前後のタイヤ車輪13により踏切を跨ぐよう
にして停止させ、後部操作装置52から転車台張出格納
操作レバーの操作を行って転車台張出格納シリンダ16
を伸長動作させる。これにより転車台15は走行体10
の下方へ張り出し、本軌陸作業車1は持ち上げ支持され
た状態となる。走行体10が転車台15により持ち上げ
支持されたら走行体10の後部(若しくは前部)を走行
体10の側方に押して約90度旋回させる。これにより
走行体10の前後方向が軌道Rの延びる方向と一致した
ら後部操作装置52より鉄輪張出格納操作レバーを操作
し、鉄輪張出格納シリンダ63を伸長動作させる。これ
により各鉄輪60が所定の張り出し位置にまで張り出し
たら転車台張出格納操作レバーを操作して転車台張出格
納シリンダ16を収縮動作させ、転車台15を格納させ
ながら鉄輪60を軌道R上に位置させる。転車台15が
完全に格納されたら本軌陸作業車1は道路から軌道R上
へ載せ換え移動された状態となる。
When the railroad crossing closest to the work site is reached, the land-rail vehicle 1 is stopped by the front and rear tire wheels 13 so as to straddle the crossing, and the rear operation device 52 is operated to operate the rolling platform extension / retraction operation lever. Chassis overhang storage cylinder 16
To extend. As a result, the turntable 15 becomes the traveling body 10.
And the main tracked land vehicle 1 is lifted and supported. When the traveling body 10 is lifted and supported by the turntable 15, the rear portion (or front portion) of the traveling body 10 is pushed to the side of the traveling body 10 to turn about 90 degrees. As a result, when the front-back direction of the traveling body 10 coincides with the direction in which the track R extends, the iron wheel overhang storage lever is operated by the rear operation device 52 to extend the iron wheel overhang storage cylinder 63. As a result, when each iron wheel 60 is extended to the predetermined overhang position, the rolling table extension projecting / retracting operation lever is operated to cause the rolling table projecting / retracting cylinder 16 to contract, and while the rolling table 15 is retracted, the iron wheel 60 is placed on the track R. Located in. When the turntable 15 is completely stored, the main rail work vehicle 1 is in a state of being retransferred from the road to the track R.

【0017】このようにして本軌陸作業車1が軌道R上
へ載せ換えられたら、作業者は運転席11から走行レバ
ーを操作して走行モータの動作制御を行い、鉄輪60に
よる軌道走行を行う。作業現場に到着したら作業者は荷
台12より作業台40に搭乗し、上部操作装置51より
作業台移動操作レバーの操作を行って伸縮ブーム30を
起伏、伸縮、旋回動作させ、或いは作業台40を首振り
動作させて作業台40の移動を行い、所要の作業(ここ
ではトロリ線の点検作業)を行う。そして作業が終わっ
たら作業台移動操作レバーの操作を行って伸縮ブーム3
0をブーム受け17に載置させ、運転席11から走行モ
ータの動作制御を行って踏切のある地点まで軌道走行を
行う。
When the main rail work vehicle 1 is remounted on the track R in this manner, the operator operates the travel lever from the driver's seat 11 to control the operation of the travel motor, and the iron wheel 60 performs track travel. . When the operator arrives at the work site, the operator mounts the workbench 40 from the load platform 12 and operates the workbench movement operation lever from the upper operation device 51 to move the telescopic boom 30 up and down, extend and retract, or swivel the workbench 40. The work table 40 is moved by swiveling, and the required work (here, trolley wire inspection work) is performed. When the work is completed, operate the workbench movement operation lever to move the telescopic boom 3
0 is placed on the boom receiver 17, and the operation of the traveling motor is controlled from the driver's seat 11 to travel on a track to a point with a railroad crossing.

【0018】踏切のある地点まで移動したら本軌陸作業
車1を軌道R上に静止させ、後部操作装置52より転車
台張出格納操作レバーの操作を行って転車台張出格納シ
リンダ16を伸長動作させ、転車台15を下方へ張り出
させる。走行体10が転車台15により支持されたら走
行体10の後部(若しくは前部)を走行体10の側方に
押して約90度旋回させ、これにより走行体10の前後
方向が道路の延びる方向とほぼ一致したら鉄輪張出格納
操作レバーを操作し、鉄輪張出格納シリンダ63を収縮
動作させる。これにより各鉄輪60が所定の格納位置に
格納されたら転車台張出格納操作レバーの操作を行って
転車台張出格納シリンダ16を格納動作させ、全てのタ
イヤ車輪13が道路上に接地するようにする。転車台1
5が完全に格納されたら本軌陸作業車1は軌道R上から
道路上に載せ換え移動された状態となる。
When the railroad work vehicle 1 is stopped on the track R after the railroad crossing is moved to a certain point, the rear operation device 52 is operated to extend and retract the undercarriage cradle storage cylinder 16 by operating the undercarriage cradle overhang storage lever. Then, the turntable 15 is extended downward. When the traveling body 10 is supported by the turntable 15, the rear portion (or the front portion) of the traveling body 10 is pushed to the side of the traveling body 10 to turn about 90 degrees, whereby the front-back direction of the traveling body 10 becomes the direction in which the road extends. When they are almost coincident with each other, the iron wheel overhanging and storing operation lever is operated to cause the iron wheel overhanging and storing cylinder 63 to contract. As a result, when each iron wheel 60 is stored in the predetermined storage position, the wheel platform extension storage lever is operated to retract the wheel platform extension storage cylinder 16 so that all the tire wheels 13 are grounded on the road. To Turntable 1
When 5 is completely stored, the main rail land vehicle 1 is in a state of being transferred from the track R on the road.

【0019】次に、本軌陸作業車1に備えられた鉄輪6
0の構造について説明する。図1は本軌陸作業車1に備
えられた鉄輪60の構成を示すものであり、(A)は本
鉄輪60を走行体10の外方から見た側面図、(B)は
本鉄輪60の断面正面図、(C)は本鉄輪60を走行体
10の内方から見た側面図である。但し、(B)の上半
分は(A)における矢視P−Pから見た断面図、下半分
は(C)における矢視Q−Qから見た断面図である。
Next, the iron wheel 6 provided on the main track land vehicle 1
The structure of 0 will be described. FIG. 1 shows a structure of an iron wheel 60 provided in the main rail work vehicle 1. (A) is a side view of the iron wheel 60 as seen from the outside of the traveling body 10, and (B) is a view of the iron wheel 60. A sectional front view, (C) is a side view of the iron wheel 60 as viewed from the inside of the traveling body 10. However, the upper half of (B) is a cross-sectional view seen from the arrow P-P in (A), and the lower half is a cross-sectional view seen from the arrow Q-Q in (C).

【0020】これらの図から分かるように、本鉄輪60
は走行体10に回転自在に支承された車軸Sの端部に支
持された金属製の内輪70と、この内輪70の外周部に
位置して軌道Rに接触する金属製の外輪80とを有して
なる。内輪70と外輪80との間には電気絶縁性材料か
らなる中間輪90が設けられており、内輪70と中間輪
90は第1ボルトB1(及び第1ナットN1)により、
また外輪80と中間輪90は第2ボルトB2(及び第2
ナットN2)により結合されている。
As can be seen from these figures, the iron wheel 60
Has a metal inner ring 70 supported at the end of an axle S rotatably supported by the traveling body 10 and a metal outer ring 80 located on the outer periphery of the inner ring 70 and in contact with the track R. I will do it. An intermediate ring 90 made of an electrically insulating material is provided between the inner ring 70 and the outer ring 80, and the inner ring 70 and the intermediate ring 90 are formed by the first bolt B1 (and the first nut N1).
Further, the outer ring 80 and the intermediate ring 90 have a second bolt B2 (and a second bolt B2).
It is connected by a nut N2).

【0021】内輪70の中央部71にはボス部72が形
成されており、車軸Sはこのボス部72を貫装するよう
にスプライン結合されている。内輪70の中央部71よ
り半径方向外側に延びたフランジ部73の外周部には周
方向等間隔に半径方向内方へ向いた6箇所の切り欠き部
74,74,…が設けられている。
A boss portion 72 is formed in the center portion 71 of the inner ring 70, and the axle S is spline-coupled so as to penetrate the boss portion 72. At the outer peripheral portion of the flange portion 73 extending radially outward from the central portion 71 of the inner ring 70, six notch portions 74, 74, ... Inwardly provided in the radial direction are provided at equal intervals in the circumferential direction.

【0022】外輪80はほぼ円筒形状をなしており、そ
の外周面81が軌道Rに接触するようになっている。こ
の外周面81には半径方向外方に突出して延びた外縁フ
ランジ部82が設けられており、この外縁フランジ部8
2が軌道Rの側面に当接して脱輪が防止されるようにな
っている。外輪80の内周面83からは半径方向内方に
向けて延びたフランジ部84が設けられており、更にこ
のフランジ部84には、周方向等間隔に半径方向外方へ
向いた6箇所の切り欠き部85,85,…が設けられて
いる。
The outer ring 80 has a substantially cylindrical shape, and its outer peripheral surface 81 is in contact with the track R. An outer edge flange portion 82 is provided on the outer peripheral surface 81 so as to project outward in the radial direction, and the outer edge flange portion 8 is provided.
2 comes into contact with the side surface of the track R to prevent derailment. A flange portion 84 extending inward in the radial direction is provided from the inner peripheral surface 83 of the outer ring 80. Further, the flange portion 84 is provided with six circumferentially equidistantly outwardly extending radially outwards. Cutouts 85, 85, ... Are provided.

【0023】中間輪90は内部輪91と外部輪92とを
有しており、これら両輪91,92の間には周方向等間
隔に設けられた16個のほぼ筒状のボルト取付部93,
93,…を有している。これらボルト取付部93,9
3,…の各々は内輪70に設けられた上記6箇所の切り
欠き部74,74,…と外輪80に設けられた上記6箇
所の切り欠き部85,85,…とに交互に圧入されてお
り、これにより内輪70は中間輪90を挟んで外輪80
内に入り込んだ状態となっている。
The intermediate wheel 90 has an inner wheel 91 and an outer wheel 92. Between the two wheels 91, 92, there are 16 bolt mounting portions 93, each having a substantially cylindrical shape and provided at equal intervals in the circumferential direction.
93, ... These bolt mounting parts 93, 9
, 3 are alternately press-fitted into the 6 cutouts 74, 74, ... Provided in the inner ring 70 and the 6 cutouts 85, 85 ,. As a result, the inner ring 70 sandwiches the intermediate ring 90 and the outer ring 80
It is in a state where it is inside.

【0024】このように内輪70が中間輪90を挟んで
外輪80内に入り込んだ状態では、内輪70のフランジ
部73に設けられたボルト穴75と中間輪90のボルト
取付部93に設けられたボルト穴94とが一致し、また
外輪80のフランジ部84に設けられたボルト穴86と
中間輪90のボルト取付部93に設けられたボルト穴9
4とが一致するようになっている。中間輪90のボルト
穴94には金属性のカラーCが挿入取り付けされ、この
カラーCを貫通するように上記第1ボルトB1(内輪7
0と中間輪90とを結合するボルト)と第2ボルトB2
(外輪80と中間輪90とを結合するボルト)が取り付
けられる。これにより第1及び第2ボルトB1,B2は
それぞれ車軸Sと平行に位置し、且つ車軸Sを中心とす
る円状に交互に並んで配設された状態となる。ここで、
上記カラーCはボルトB1,B2をナットN1,N2に
より締め付けたときに、中間輪90が変形しないように
するために用いられる。また、このカラーCにより、第
1ボルトB1を介して内輪70から中間輪90へ、また
第2ボルトB2を介して中間輪90から外輪80へトル
クがスムーズに伝達するようになる。
When the inner ring 70 enters the outer ring 80 with the intermediate ring 90 sandwiched in this way, the bolt holes 75 provided in the flange portion 73 of the inner ring 70 and the bolt mounting portions 93 of the intermediate ring 90 are provided. The bolt hole 94 is aligned with the bolt hole 94, and the bolt hole 86 provided in the flange portion 84 of the outer ring 80 and the bolt hole 9 provided in the bolt mounting portion 93 of the intermediate ring 90.
4 and 4 match. A metallic collar C is inserted and attached to the bolt hole 94 of the intermediate ring 90, and the first bolt B1 (the inner ring 7 is inserted so as to penetrate the collar C).
0 and the intermediate wheel 90) and the second bolt B2
(Bolts that connect the outer ring 80 and the intermediate ring 90) are attached. As a result, the first and second bolts B1 and B2 are positioned parallel to the axle S and are arranged alternately in a circle centered on the axle S. here,
The collar C is used to prevent the intermediate wheel 90 from being deformed when the bolts B1 and B2 are tightened with the nuts N1 and N2. Further, due to the collar C, torque is smoothly transmitted from the inner ring 70 to the intermediate ring 90 via the first bolt B1 and from the intermediate ring 90 to the outer ring 80 via the second bolt B2.

【0025】このように本発明に係る鉄輪構造において
は、車軸Sに支持された金属製の内輪70と、この内輪
70の外周部に位置して軌道Rに接触する金属製の外輪
80とを直接結合するのではなく、これら両輪70,8
0の間に絶縁性材料からなる中間輪90を設けるととも
に、内輪70と中間輪90、外輪80と中間輪90をそ
れぞれ互いに離間したボルト(第1ボルトB1と第2ボ
ルトB2)で結合(ボルト同士が接触しないようにして
内輪70と中間輪90、外輪80と中間輪90をそれぞ
れ結合)するようにしている。このため雨水等がボルト
の近傍、例えばカラーC内に侵入しても内輪70と外輪
80とが電気的に繋がることはなく、左右の軌道R,R
を短絡させてしまう事態を確実に防止することができ
る。なお、ここで用いられる中間輪90は内輪70から
外輪80へ大きなトルクを伝達できるだけの強度(剪断
強度)を有する必要がある。したがってその材料として
は例えばMCナイロンが好ましいが、FRP(強化プラ
スチック)やセラミックス等を用いることもできる。
As described above, in the iron ring structure according to the present invention, the metal inner ring 70 supported by the axle S and the metal outer ring 80 located on the outer peripheral portion of the inner ring 70 and contacting the track R are provided. These wheels 70, 8 are not directly connected
0 is provided with an intermediate ring 90 made of an insulating material, and the inner ring 70 and the intermediate ring 90, and the outer ring 80 and the intermediate ring 90 are connected by bolts (first bolt B1 and second bolt B2) that are separated from each other. The inner ring 70 and the intermediate ring 90 and the outer ring 80 and the intermediate ring 90 are connected to each other so that they do not contact each other. Therefore, even if rainwater or the like enters the vicinity of the bolt, for example, the collar C, the inner ring 70 and the outer ring 80 are not electrically connected, and the left and right tracks R, R
It is possible to reliably prevent the situation where the short circuit is caused. The intermediate wheel 90 used here needs to have a strength (shear strength) enough to transmit a large torque from the inner wheel 70 to the outer wheel 80. Therefore, for example, MC nylon is preferable as the material, but FRP (reinforced plastic), ceramics, or the like can also be used.

【0026】また、第1及び第2ボルトB2はそれぞれ
車軸Sと平行に延びて設けられており、且つ内輪70と
中間輪90とを結合する第1ボルトB1,B1,…と、
外輪80と中間輪90とを結合する第2ボルトB2,B
2,…とは車軸Sを中心とする円状に交互に並んで配設
されているので、内輪70、中間輪90、外輪80の三
輪をバランス良く締結でき、これら三輪間の荷重(トル
ク)伝達をスムーズに行わせることができる。
The first and second bolts B2 are provided so as to extend in parallel with the axle S, and the first bolts B1, B1, ... Connecting the inner ring 70 and the intermediate ring 90, respectively,
Second bolts B2, B connecting the outer ring 80 and the intermediate ring 90
, 2 are arranged alternately in a circle centering on the axle S, the three wheels of the inner ring 70, the intermediate ring 90, and the outer ring 80 can be fastened in a well-balanced manner, and the load (torque) between these three wheels. It can be transmitted smoothly.

【0027】これまで本発明に係る安全装置の実施形態
について説明してきたが、本発明の範囲は上述のものに
限定されない。例えば、上記実施形態においては、本発
明に係る鉄輪構造が適用される対象が軌陸作業車である
場合を例に説明したが、これは一例に過ぎず、軌道走行
用の鉄輪を備えて軌道上を走行し、走行体上に備えた作
業装置を用いて軌道沿線での作業を行うものであれば、
他の形態の軌道作業車に対しても本発明を適用すること
が可能である。
Although the embodiments of the safety device according to the present invention have been described above, the scope of the present invention is not limited to the above. For example, in the above-described embodiment, the case where the target to which the iron ring structure according to the present invention is applied is the tracked work vehicle has been described as an example. However, this is only an example, and the iron wheel for track running is provided on the track. If you are going to work along the track using the work equipment provided on the traveling body,
The present invention can be applied to other types of track work vehicles.

【0028】[0028]

【発明の効果】以上説明したように、本発明に係る軌陸
走行作業車の鉄輪構造においては、車軸に支持された金
属製の内輪と、この内輪の外周部に位置して軌道に接触
する金属製の外輪とを直接結合するのではなく、これら
両輪の間に絶縁性材料からなる中間輪を設けるととも
に、内輪と中間輪、外輪と中間輪をそれぞれ互いに離間
したボルトで結合するようにしている。このため雨水等
がボルト近傍に侵入しても内輪と外輪とが電気的に繋が
ることはなく、左右の軌道を短絡させてしまう事態を確
実に防止することができる。
As described above, in the iron wheel structure of the track running work vehicle according to the present invention, the metal inner ring supported by the axle and the metal located on the outer peripheral portion of the inner ring and contacting the track. Instead of directly connecting the outer ring made of steel, an intermediate ring made of an insulating material is provided between these two wheels, and the inner ring and the intermediate ring, and the outer ring and the intermediate ring are connected by mutually spaced bolts. . Therefore, even if rainwater or the like enters near the bolt, the inner ring and the outer ring are not electrically connected to each other, and it is possible to reliably prevent a situation in which the left and right tracks are short-circuited.

【0029】ここで、ボルトはそれぞれ車軸と平行に延
びて設けられており、内輪と中間輪とを結合するボルト
と、外輪と中間輪とを結合するボルトとが車軸を中心と
する円状に交互に並んで配設されていることが好まし
い。このような構成であれば、内輪、中間輪、外輪の三
輪をバランス良く締結することができ、これら三輪間の
荷重(トルク)伝達をスムーズに行わせることができ
る。
Here, the bolts are provided so as to extend parallel to the axles, and the bolts that connect the inner ring and the intermediate wheel and the bolts that connect the outer ring and the intermediate ring are formed in a circular shape centered on the axle. It is preferable that they are arranged alternately. With such a configuration, the three wheels of the inner ring, the intermediate wheel, and the outer ring can be fastened in a well-balanced manner, and the load (torque) can be smoothly transmitted between these three wheels.

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

【図1】本発明に係る鉄輪構造を備えた軌陸作業車の鉄
輪の構成を示す図であり、(A)は本鉄輪を走行体の外
方から見た側面図、(B)は本鉄輪の断面正面図、
(C)は本鉄輪を走行体の内方から見た側面図である。
1A and 1B are views showing a structure of an iron wheel of a track-and-rail work vehicle equipped with an iron wheel structure according to the present invention, FIG. 1A is a side view of the iron wheel seen from the outside of a traveling body, and FIG. Sectional front view of
(C) is a side view of the iron wheel viewed from the inside of the traveling body.

【図2】上記軌陸作業車の側面図である。FIG. 2 is a side view of the railroad work vehicle.

【符号の説明】[Explanation of symbols]

1 軌陸作業車(軌道作業車) 60 鉄輪 70 内輪 73 フランジ部 74 切り欠き部 75 ボルト穴 80 外輪 84 フランジ部 85 切り欠き部 86 ボルト穴 90 中間輪 91 内部輪 92 外部輪 93 ボルト取付部 94 ボルト穴 C カラー B1 第1ボルト B2 第2ボルト 1 Tracked land vehicle (tracked vehicle) 60 iron wheels 70 Inner ring 73 Flange 74 Notch 75 bolt holes 80 outer ring 84 Flange 85 Notch 86 bolt holes 90 Middle wheel 91 Inner ring 92 outer ring 93 Bolt mounting part 94 bolt holes C color B1 1st bolt B2 Second bolt

───────────────────────────────────────────────────── フロントページの続き (72)発明者 桑原 義則 群馬県利根郡新治村大字東峰須川414ー1 株式会社アイチコーポレーション新治工 場内   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshinori Kuwahara             41-1, Higashimine Sugawa, Shinji Village, Tone-gun, Gunma Prefecture               Aichi Corporation Shinjiko             Inside the hall

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 車軸に支持された金属製の内輪と、この
内輪の外周部に位置して軌道に接触する金属製の外輪と
を有して構成される軌道作業車の鉄輪構造において、 前記内輪と前記外輪との間に電気絶縁性材料からなる中
間輪を設け、前記内輪と前記中間輪、前記外輪と前記中
間輪をそれぞれ互いに離間したボルトで結合したことを
特徴とする軌道作業車の鉄輪構造。
1. An iron wheel structure for a track work vehicle, comprising: a metal inner ring supported by an axle; and a metal outer ring located on an outer peripheral portion of the inner ring and contacting a track. An intermediate ring made of an electrically insulating material is provided between the inner ring and the outer ring, and the inner ring and the intermediate ring, and the outer ring and the intermediate ring are connected by bolts that are spaced apart from each other. Iron ring structure.
【請求項2】 前記ボルトはそれぞれ前記車軸と平行に
延びて設けられており、前記内輪と前記中間輪とを結合
する前記ボルトと、前記外輪と前記中間輪とを結合する
前記ボルトとが前記車軸を中心とする円状に交互に並ん
で配設されていることを特徴とする請求項1記載の軌道
作業車の鉄輪構造。
2. The bolts are respectively provided so as to extend parallel to the axle, and the bolts that connect the inner ring and the intermediate wheel and the bolts that connect the outer ring and the intermediate wheel are the bolts. 2. The iron wheel structure for a track work vehicle according to claim 1, wherein the iron wheel structure is arranged in a circular shape centered on the axle alternately.
JP2001227881A 2001-07-27 2001-07-27 Iron wheel structure of track working vehicle Pending JP2003039904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001227881A JP2003039904A (en) 2001-07-27 2001-07-27 Iron wheel structure of track working vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001227881A JP2003039904A (en) 2001-07-27 2001-07-27 Iron wheel structure of track working vehicle

Publications (1)

Publication Number Publication Date
JP2003039904A true JP2003039904A (en) 2003-02-13

Family

ID=19060473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001227881A Pending JP2003039904A (en) 2001-07-27 2001-07-27 Iron wheel structure of track working vehicle

Country Status (1)

Country Link
JP (1) JP2003039904A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006256525A (en) * 2005-03-18 2006-09-28 Topy Ind Ltd Wheel for dual tire
JP2013230799A (en) * 2012-05-01 2013-11-14 Bando Chemical Industries Ltd Insulated wheel and method of manufacturing the same
WO2016066289A1 (en) * 2014-10-29 2016-05-06 Contitech Luftfedersysteme Gmbh Rail wheel and rail vehicle
JP2019188876A (en) * 2018-04-19 2019-10-31 株式会社タダノ Insulated wheel and method for manufacturing the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006256525A (en) * 2005-03-18 2006-09-28 Topy Ind Ltd Wheel for dual tire
JP2013230799A (en) * 2012-05-01 2013-11-14 Bando Chemical Industries Ltd Insulated wheel and method of manufacturing the same
WO2016066289A1 (en) * 2014-10-29 2016-05-06 Contitech Luftfedersysteme Gmbh Rail wheel and rail vehicle
CN106715142A (en) * 2014-10-29 2017-05-24 康蒂泰克空气弹簧***有限公司 Rail wheel and rail vehicle
JP2019188876A (en) * 2018-04-19 2019-10-31 株式会社タダノ Insulated wheel and method for manufacturing the same
JP7102895B2 (en) 2018-04-19 2022-07-20 株式会社タダノ Insulated wheels and their manufacturing methods

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