JPH0344628Y2 - - Google Patents

Description

【考案の詳細な説明】 (イ) 産業上の利用分野 本考案は動力運搬車における走行部の転動輪取
付構造に関するものである。[Detailed description of the invention] (a) Industrial application field The present invention relates to a structure for mounting rolling wheels on a running section of a power carrier.

(ロ) 従来技術 従来、動力運搬車のクローラ式走行部は、走行
フレームの前端に駆動輪を、後端に遊動輪を各々
連結し、同フレームの上側中央部に上部転動輪を
遊転自在に取付け、また、同フレームの下側に下
部転動輪を多数遊転自在、かつ、上下揺動自在に
取付けて、駆動輪と遊動輪との間に巻架した履帯
を上記各転動輪にて緊張保持せしめるべく構成し
ている。(b) Conventional technology Conventionally, the crawler type running section of a power transport vehicle has a drive wheel connected to the front end of a running frame, an idler wheel connected to the rear end, and an upper rolling wheel attached to the upper center of the frame for free rotation. In addition, a number of lower rolling wheels are attached to the lower side of the same frame so that they can freely rotate and swing up and down, and a crawler track that is wrapped between the drive wheel and the idler wheels is attached to each of the above rolling wheels. It is designed to maintain tension.

この際、下部転動輪は、左右二個のローラーよ
り成り、略三角形状の左右側支持ブラケツト間の
前後頂部に各々遊転自在に軸支し、同状態にて同
ブラケツトの上側中央頂部を走行フレーム下側に
上下揺動自在に枢支連結しているものである。 At this time, the lower rolling wheel consists of two rollers on the left and right, each of which is rotatably supported at the front and rear apexes between approximately triangular left and right support brackets, and runs on the upper center apex of the brackets in the same state. It is pivotally connected to the lower side of the frame so that it can swing vertically.

(ハ) 考案が解決しようとする問題点 ところが、上記のように左右側支持ブラケツト
間の前後頂部に軸支された各下部転動輪の軸芯
と、同ブラケツトの上側中央頂部枢支部との芯間
距離は、等しくなるように構成されているため
に、履帯弛緩時に前後双方の下部転動輪が履帯と
接触しない状態を呈し、もつて、容易に履帯が脱
れるという不具合が生じていた。(c) Problems to be solved by the invention However, as mentioned above, the axis of each lower rolling wheel pivotally supported at the front and rear apex between the left and right support brackets and the center axis of the upper central apex of the same bracket are Since the distances between the crawlers are configured to be equal, both the front and rear lower rolling wheels do not come into contact with the crawler when the crawler is loosened, resulting in the problem that the crawler easily comes off.

(ニ) 問題を解決するための手段 そこで、本考案では、内外側、及び中央に配し
た横三列のローラー部より成る最前後端位置配設
用下部転動輪と、内外側横二列に配したローラー
部より成る多数の中間位置配設用下部転動輪と
を、前後二個づつ支持ブラケツトの前後部に軸支
すると共に、前後いずれかに偏位した各ブラケツ
トの上端位置を、前後端に駆動輪と遊動輪を連結
した走行フレームの下側に上下揺動自在に枢支
し、しかも、全下部転動輪の内外側ローラー部間
には駆動輪と遊動輪との間に懸架した履帯内側の
二又係合突条が嵌合保持せられるように構成して
なる動力運搬車における走行部の転動輪取付構造
を提供せんとするものである。(d) Means for solving the problem Therefore, in the present invention, a lower rolling wheel for the front and rearmost positions, consisting of three rows of rollers arranged on the inner and outer sides and in the center, and two rows of rollers arranged on the inner and outer sides. A large number of lower rolling wheels for intermediate positions, each consisting of a roller section, are pivotally supported at the front and rear of the support bracket, and the upper end position of each bracket, which is deviated to either the front or rear, is fixed to the front or rear end. The lower part of the running frame, which connects the driving wheel and the idler wheel, is pivoted so as to be able to swing up and down, and the crawler track is suspended between the driving wheel and the idler wheel between the inner and outer roller parts of all the lower rolling wheels. It is an object of the present invention to provide a rolling wheel mounting structure of a running section of a power transport vehicle configured such that an inner bifurcated engagement protrusion is fitted and held.

(ホ) 作用 駆動輪と遊動輪との間に懸架した履帯の横摺
れ、離脱の防止は、走行フレーム下側に多数支持
ブラケツトを介して上下揺動自在に取付けた下部
転動輪のガイド機能によりなされるものであり、
この際、同下部転動輪は、内外側、及び中央に配
した横三列のローラー部より成る最前後下部転動
輪と、内外側横二列に配したローラー部より成る
中間下部転動輪とより成り、この内最前後下部転
動輪は、履帯の横摺れ、離脱の起こりやすい駆動
輪、乃至遊動輪に可及的に近接位置せられて上下
揺動するとともに、横三列のローラー部間には履
帯の二又係合突条が嵌入されていることより、凹
凸の激しい路面においても履帯の横摺れ、離脱が
確実に防止され、しかも、履帯弛緩時にも支持ブ
ラケツトの枢支位置より不均等に配された各下部
転動輪のいずれかが同履帯に圧接していることよ
り、常時履帯の緊張支持がなされて、円滑な履帯
の回動作動に寄与するものである。(E) Function The crawler track suspended between the driving wheel and the idler wheel is prevented from sliding sideways or coming off by the guide function of the lower rolling wheel, which is attached to the lower side of the running frame via a multi-support bracket so as to be able to swing vertically. This is done by
In this case, the lower rolling wheel consists of a lowermost front and rear rolling wheel consisting of three horizontal rows of roller sections arranged on the inner and outer sides and in the center, and an intermediate lower rolling wheel consisting of roller sections arranged in two horizontal rows on the inner and outer sides. Of these, the lowermost front and rear rolling wheels are located as close as possible to the drive wheels and idler wheels, where the crawler track is likely to slide sideways or come off, and swing up and down, and also move between the three horizontal rows of rollers. Since the two-pronged engagement protrusion of the crawler track is inserted into the holder, it is possible to reliably prevent the crawler track from sliding sideways or coming off even on extremely uneven road surfaces, and even when the crawler track is loosened, it is possible to prevent the crawler track from sliding from the pivot position of the support bracket. Since one of the unevenly distributed lower rolling wheels is in pressure contact with the crawler belt, the crawler belt is constantly supported under tension, contributing to smooth rotational movement of the crawler belt.

(ヘ) 効果 本考案によれば、凹凸の激しい走行路面におい
ても、履帯の横摺れ、離脱等の不具合が確実に防
止されると共に、同履帯の一定緊張支持が確保さ
れるために、履帯の円滑回動作動が補償され、走
行性能が向上せられるという効果を奏する。(f) Effects According to the present invention, problems such as side sliding and disengagement of the crawler track are reliably prevented even on extremely uneven running roads, and a constant tension support of the crawler track is ensured. This has the effect of compensating for smooth rotational movement and improving running performance.

(ト) 実施例 本考案の実施例を図面にもとづき詳説すれば、
Ａは動力運搬車であり、同運搬車Ａはクローラ式
の左右走行部１，１間に機体フレーム２を架設
し、同フレーム２上の前部左側に運転部３を設
け、そして、前部右側に原動機４と燃料タンク５
とを前後に各々配設して、同フレーム２後部には
荷台６をダンプシリンダ７を介して後方へダンプ
作動可能に構成している。(G) Example The example of the present invention will be explained in detail based on the drawings.
A is a power transport vehicle, and the transport vehicle A has a body frame 2 installed between crawler-type left and right running sections 1, 1, a driving section 3 on the front left side of the frame 2, and a front section. Prime mover 4 and fuel tank 5 on the right side
are arranged in the front and rear, respectively, and a cargo platform 6 is arranged at the rear of the frame 2 so as to be able to perform a dump operation rearward via a dump cylinder 7.

走行部１は、前後長手矩形筒状に形成した走行
フレーム８の前後端に駆動輪９と遊動輪１０とを
連結し、同フレーム８の上側中央部には上部転動
輪１１を遊転自在に取付け、また、同フレーム８
の下側には最前後下部転動輪１２と多数の中間下
部転動輪１２′を取付けて、駆動輪９と遊動輪１
０との間に巻架した履帯１３の上下側内面を上記
転動輪１１，１２により緊張支持せしめるべく構
成している。 The running section 1 has a drive wheel 9 and an idler wheel 10 connected to the front and rear ends of a running frame 8 formed in a longitudinally rectangular cylindrical shape, and an upper rolling wheel 11 is arranged in the upper center of the frame 8 so as to freely rotate. Installation, also the same frame 8
The lowermost front and rear rolling wheels 12 and a number of intermediate lower rolling wheels 12' are installed on the lower side, and the drive wheels 9 and idler wheels 1
The upper and lower inner surfaces of the crawler belt 13 wound between the rollers 1 and 0 are tension-supported by the rolling wheels 11 and 12.

そして、中間下部転動輪１２′は、内外側ロー
ラー部１２′−１，２より成る中間配設用のもの
であり、また、最前後下部転動輪１２は内外側ロ
ーラ部１２−１，２の中間に中間ローラー部１２
−３を介設して成る最前後端部配設用のものであ
り、同転動輪１２，１２′を五角形状の左右側支
持ブラケツト１４，１４′の前後部に各々枢軸１
５，１５を介して遊転自在に軸架しているもので
ある。 The intermediate lower rolling wheel 12' is for intermediate arrangement consisting of the inner and outer roller parts 12'-1 and 2, and the lowermost front and rear rolling wheels 12 are for the inner and outer roller parts 12'-1 and 2. Intermediate roller part 12 in the middle
The rolling wheels 12 and 12' are mounted on the front and rear sides of the pentagonal left and right support brackets 14 and 14', respectively, with a pivot shaft 1.
5 and 15, the shaft is rotatably mounted.

しかも、左右側支持ブラケツト１４，１４′は、
共に上側前後傾斜片が下等辺の五角形に形成して
成り、同ブラケツト１４，１４′の上側頂部を、
支軸１６を介して走行フレーム８下側の前後部と
中央部との三か所に各々上下揺動自在に枢支して
いるものであり、この際、同フレーム８の前後部
に取付ける各ブラケツト１４，１４は、上側傾斜
辺の短い方が駆動輪９、乃至遊動輪１０に近接す
べく、同フレーム８の前後部に各々遊嵌した前後
ストツパー兼補強体１７，１７′に枢支連結して
おり、さらには、駆動輪９と遊動輪１０とに近接
させた各下部転動輪１２は、内外側、及び、中央
の三個のローラー部１２−１，２，３より成るも
のを使用して、履帯１３の離脱防止に寄与せしめ
ている。 Moreover, the left and right side support brackets 14, 14' are
Both upper front and back inclined pieces are formed into a pentagon with lower equilateral sides, and the upper tops of the brackets 14, 14' are
It is pivoted via a support shaft 16 at three locations on the lower side of the traveling frame 8, at the front and rear, and at the center, so as to be able to swing up and down. The brackets 14, 14 are pivotally connected to front and rear stoppers/reinforcing bodies 17, 17' loosely fitted to the front and rear of the frame 8, respectively, so that the shorter side of the upper inclined side is closer to the drive wheel 9 or the idler wheel 10. Furthermore, each lower rolling wheel 12 placed close to the driving wheel 9 and the idler wheel 10 is composed of three roller parts 12-1, 2, and 3 on the inner and outer sides and the center. This contributes to preventing the crawler belt 13 from coming off.

従つて、上記左右側支持ブラケツト１４，１
４′形状により、三個のローラー部を有する最前
後下部転動輪１２を、駆動輪９と遊動輪１０に可
及的に近接させることができると共に、履帯弛緩
時にも前後いづれかの下部転動輪１２，１２′が
履帯１３に圧接しているために、同履帯１３の離
脱防止が確実になされるものである。 Therefore, the left and right support brackets 14,1
4' shape allows the front and rear lower rolling wheels 12 having three roller parts to be brought as close as possible to the driving wheel 9 and the idler wheel 10, and even when the crawler belt is loosened, either the front or rear lower rolling wheels 12 , 12' are in pressure contact with the crawler belt 13, so that the crawler belt 13 is reliably prevented from coming off.

図中、Ｌは枢軸１５と支軸１６との短幅水平芯
間距離であり、また、L′は長幅水平芯間距離を示
している。 In the figure, L is the distance between the short horizontal centers of the pivot 15 and the support shaft 16, and L' is the distance between the long horizontal centers.

１８は転動輪支持体、１９はベアリングであ
る。 18 is a rolling wheel support, and 19 is a bearing.

また、１３−１は履帯１３内側面より突設した
二又係合突条であり、同突条１３−１が各ローラ
ー部間に嵌入されて、同履帯１３の横ずれ、離脱
等が防止されるべく構成している。 Further, 13-1 is a bifurcated engagement protrusion protruding from the inner surface of the crawler belt 13, and the protrusion 13-1 is fitted between each roller portion to prevent the crawler belt 13 from shifting laterally or coming off. It is configured as much as possible.

上部転動輪１１は、断面略コ字状の内外側ロー
ラー体１１−１，１より成り、走行フレーム８の
上側中央部に取付用軸２０をボルト２１により横
設固定し、同軸２０の両外側端を張出し状に伸延
２０−１，１させて、同伸延部２０−１，１に遊
転支持部２２，２２を嵌装し、同支持部２２，２
２に各々内外側ローラー体１１−１，１を周端縁
が内側方に位置すべく連設して、同ローラー体１
１−１，１の外側周面にて履帯１３を下方より緊
張支持すべく構成している。 The upper rolling wheel 11 consists of inner and outer roller bodies 11-1, 1 having a substantially U-shaped cross section, and a mounting shaft 20 is horizontally fixed to the upper center of the running frame 8 with bolts 21, and both outer sides of the same shaft 20 The ends are extended in an overhanging manner, and the free rotation support parts 22, 22 are fitted into the extension parts 20-1, 1, and the support parts 22, 2 are
2, inner and outer roller bodies 11-1, 1 are arranged in series so that the peripheral edges are located inward, and the roller bodies 1
The crawler belt 13 is tension-supported from below on the outer circumferential surface of 1-1, 1.

従つて、上記上部転動輪１１は、構造簡易にし
て強度がアツプし、しかも、組立分解が容易に行
えるものである。 Therefore, the upper rolling wheel 11 has a simple structure and increased strength, and can be easily assembled and disassembled.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案による転動輪取付構造を示す
側面図、第２図は、同要部の断面図、対３図は、
同要部の断面図、第４図は、同要部の断面図、第
５図は、同要部を有する動力運搬車の側面図。 Ａ：動力運搬車、８：走行フレーム、１１：上
部転動輪、１２：下部転動輪。 Fig. 1 is a side view showing the rolling wheel mounting structure according to the present invention, Fig. 2 is a sectional view of the same essential parts, and Fig. 3 is a
FIG. 4 is a cross-sectional view of the same main part, and FIG. 5 is a side view of a power carrier having the same main part. A: Power carrier, 8: Traveling frame, 11: Upper rolling wheel, 12: Lower rolling wheel.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内外側、及び中央の横三列に配したローラー部
より成る最前後端位置配設用下部転動輪１２，１
２と、内外側横二列に配したローラー部より成る
多数の中間位置配設用下部転動輪１２′とを、前
後二個づつ支持ブラケツト１４の前後部に軸支す
ると共に、前後いずれかに偏位した各ブラケツト
１４の上端位置を、前後端に駆動輪９と遊動輪１
０を連結した走行フレーム８の下側に上下揺動自
在に枢支し、しかも、全下部転動輪１２，１２′
の内外側ローラー部間には駆動輪９と遊動輪１０
との間に懸架した履帯１３内側の二又係合突条１
３−１が嵌合保持せられるように構成してなる動
力運搬車における走行部の転動輪取付構造。 Lower rolling wheels 12, 1 for the most front and rear end positions, consisting of roller parts arranged in three horizontal rows on the inside, outside, and in the center.
2 and a large number of intermediate position lower rolling wheels 12' consisting of roller parts arranged in two horizontal rows on the inside and outside, are pivotally supported on the front and rear of the support bracket 14, two at the front and two at the front and at the rear. The upper end position of each deviated bracket 14 is adjusted to the front and rear ends of the driving wheel 9 and the idler wheel 1.
It is pivotally supported on the lower side of the running frame 8 to which 0 is connected, and all lower rolling wheels 12, 12'
A drive wheel 9 and an idler wheel 10 are provided between the inner and outer roller portions of the
The bifurcated engagement protrusion 1 on the inner side of the crawler track 13 suspended between
3-1 is fitted and held in a rolling wheel mounting structure of a running section in a power carrier.