JP2011115714A - Sludge scraping-up apparatus - Google Patents

Sludge scraping-up apparatus Download PDF

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JP2011115714A
JP2011115714A JP2009275005A JP2009275005A JP2011115714A JP 2011115714 A JP2011115714 A JP 2011115714A JP 2009275005 A JP2009275005 A JP 2009275005A JP 2009275005 A JP2009275005 A JP 2009275005A JP 2011115714 A JP2011115714 A JP 2011115714A
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wheel
chain
notch
driven wheel
sludge scraping
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JP5001997B2 (en
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Yuji Saito
祐二 齊藤
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ASAHI KISO KK
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ASAHI KISO KK
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Abstract

<P>PROBLEM TO BE SOLVED: To improve a driven wheel of a sludge scraping-up apparatus used in a chain having a notch portion. <P>SOLUTION: The driven wheel linked with a drive wheel of the sludge scraping-up apparatus includes the first large-diameter wheel portion protruding at the axial center of the outer peripheral surface of the driven wheel and the second concentric small-diameter wheel portions disposed in a right/left paired form through a level difference on the right and left sides of the first wheel portion. On the outer peripheral surface of the pair of the second wheel portions, nearly sideways, columnar auxiliary pin portions are disposed in a right/left paired form in the width direction along a single line parallel with the axis of the driven wheel. Two or more auxiliary pin portions are arranged at equal intervals of the pitch of segments of the notch chain along the outer peripheral surface of the second wheel portion. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、合成樹脂製のノッチチェーンを駆動ホイールに連動して循環動させる従動ホイールを備えた汚泥掻き寄せ装置の改良に関する。   The present invention relates to an improvement of a sludge scraping device including a driven wheel that circulates a notch chain made of synthetic resin in conjunction with a drive wheel.

汚泥掻き寄せ装置の無端チェーンの方式として、ローラーチェーンやブッシュドチェーンのバレル部が歯車式の駆動ホイールの歯部と噛み合ってチェーンに動力を伝達する構造、およびフィンランドのフィンチェーン社で開発され、駆動ホイールに取り付けられたピンをノッチチェーンの凹状のノッチ部に噛み合わせてチェーンを回転駆動させるノッチチェーンの構造が知られている。
そこで、本出願人は、従来のスプロケットの歯部であってもノッチ型に対応したピン式であっても、１種類のチェーンでいずれにも噛み合ってチェーンを回転することができる泥掻き寄せ装置のチェーン装置として特許第４２４５１８６号を提案し、相応の成果を収めている。
一方、従来のチェーン駆動装置として使用される合成樹脂製の従動ホイール３０は、図８に示すように、回転軸を挿入する中央の孔部３１ａに沿って設けられたボス部３１から径方向に延びるフランジ部３２を介してチェーンと衝合する外輪部３３を支持する構造からなっており、外輪部３３には中央に突出する第１輪部３４とその左右に延びる小径の第２輪部３５を有する構造や、図９に示すように外輪部３３に左右両側に突出する一対の大径の外輪部３４’とその中間に設けられた小径の第２輪部３５’を有する構造、あるいは図示しないが外輪部３４’間に金属製のピンを通して固着する構造が知られている。
しかし、上記構成では、チェーンが循環動する場合に、図８の従動ホイール３０では第１輪部３４がチェーンの隙間に嵌合して横幅方向（従動輪の軸方向）の動きを規制することはできるが回転方向には力が作用せず、図９の従動ホイール３０では第１輪部３４’間にチェーン全体が嵌合するためスリップを生じるおそれがある。
そして、スリップが生じた結果、第２輪部３５または３５’とこれに接触するチェーンのサイドリンクの下端面とが、それぞれ部分的に摩耗し、ひいては変形するという不具合が生じる。 As the endless chain system of the sludge scraping device, the barrel part of the roller chain or bushed chain meshes with the tooth part of the gear type drive wheel and transmits power to the chain, and it was developed by Finnish Finnish Company in Finland. There is known a notch chain structure in which a pin attached to a drive wheel is meshed with a concave notch portion of a notch chain to drive the chain to rotate.
Therefore, the applicant of the present invention is a mud scraping device capable of rotating a chain by meshing with any one type of chain, whether it is a tooth part of a conventional sprocket or a pin type corresponding to a notch type. Japanese Patent No. 4245186 has been proposed as a chain device of this type, and has achieved a corresponding result.
On the other hand, a synthetic resin driven wheel 30 used as a conventional chain drive device, as shown in FIG. 8, extends radially from a boss 31 provided along a central hole 31a into which a rotating shaft is inserted. It has a structure that supports an outer ring portion 33 that abuts with the chain via an extending flange portion 32. The outer ring portion 33 includes a first wheel portion 34 protruding in the center and a small-diameter second wheel portion 35 extending to the left and right thereof. 9 or a structure having a pair of large-diameter outer ring portions 34 ′ projecting from the left and right sides and a small-diameter second wheel portion 35 ′ provided between them, as shown in FIG. However, there is a known structure in which a metal pin is fixed between the outer ring portions 34 '.
However, in the above configuration, when the chain circulates, the first wheel portion 34 of the driven wheel 30 in FIG. 8 is fitted into the gap of the chain to restrict the movement in the lateral width direction (axial direction of the driven wheel). However, no force acts in the rotational direction, and the driven wheel 30 in FIG. 9 may slip because the entire chain is fitted between the first wheel portions 34 ′.
As a result of the slip, the second ring portion 35 or 35 ′ and the lower end surface of the side link of the chain that contacts the second wheel portion 35 or 35 ′ are each partially worn and eventually deformed.

特許第４２４５１８６号公報Japanese Patent No. 4245186

本出願人は更に、鋭意研究の結果、上記のようなチェーンに適用して、正転時だけでなく逆転時にもチェーンと従動ホイール間のスリップを防止してチェーンの循環動を正確に行わせることができる従動ホイールを開発し、本発明を完成するに至った。   Further, as a result of diligent research, the present applicant has applied it to the chain as described above, and prevents slippage between the chain and the driven wheel not only during forward rotation but also during reverse rotation so that the chain can be circulated accurately. A driven wheel that can be used has been developed and the present invention has been completed.

上記課題を解決するために、請求項１の発明では、
合成樹脂製のノッチチェーンを駆動ホイールに連動して循環動させる従動ホイールを備えた汚泥掻き寄せ装置において、
汚泥掻き寄せ装置の駆動ホイールに噛合する合成樹脂製のチェーンのセグメントが、チェーン進行方向と直交する方向に対峙する一対のサイドリンク間の間隔の一方を幅狭部とし他方を幅広部とし、各サイドリンクの底面にノッチ部を設けてなり、一方のセグメントの幅狭部を他方のセグメントの幅広部内に嵌合し、双方のセグメントの重なった個所を連結軸で枢着して無端のチェーンを形成しており、
前記駆動ホイールに連動する従動ホイールが、
従動ホイールの外周面で軸方向の中央で突出する大径の第１輪部と、該第１輪部の左右両側に段差部を介して左右一対に連設される同心小径の第２輪部とからなり、
該一対の第２輪部の外周面上で、従動ホイールの軸線と平行する同一線上に沿って略横倒円柱状の補助ピン部を幅方向に左右一対に設け、該補助ピン部は、第２輪部の外周面に沿って、ノッチチェーンのセグメントのピッチ間隔と同一または複数倍の間隔で等間隔に配置されていることを特徴とする。
請求項２の発明では、
前記補助ピン部は、ノッチ部が外嵌した際にノッチ部との間に隙間が生じる大きさに設定されていることを特徴とする。
また、請求項３の発明では、
前記従動ホイールが合成樹脂からなっており、合成樹脂製のノッチチェーンの従動ホイールとして用いられることを特徴とする。 In order to solve the above problem, the invention of claim 1
In a sludge scraping device equipped with a driven wheel that circulates a notch chain made of synthetic resin in conjunction with the drive wheel,
The segment of the synthetic resin chain that meshes with the drive wheel of the sludge scraping device has one of the intervals between the pair of side links facing each other in the direction orthogonal to the direction of travel of the chain as the narrow portion and the other as the wide portion. A notch is provided on the bottom of the side link, the narrow part of one segment is fitted into the wide part of the other segment, and the overlapping part of both segments is pivotally attached to the connecting shaft to form an endless chain. Formed,
A driven wheel that is linked to the drive wheel,
A large-diameter first wheel portion that protrudes from the outer peripheral surface of the driven wheel at the center in the axial direction, and a second concentric small-diameter wheel portion that is connected to the left and right sides of the first wheel portion via a stepped portion. And consist of
On the outer peripheral surfaces of the pair of second wheel portions, a pair of substantially pinned cylindrical auxiliary pin portions are provided in the width direction along the same line parallel to the axis of the driven wheel. Along the outer peripheral surface of the two-wheel part, the pitch intervals of the segments of the notch chain are arranged at equal intervals or at equal intervals.
In the invention of claim 2,
The auxiliary pin portion is set to a size that creates a gap between the notch portion and the notch portion when the notch portion is externally fitted.
In the invention of claim 3,
The driven wheel is made of a synthetic resin and is used as a driven wheel of a synthetic resin notch chain.

この発明は上記のように、従動ホイールが、中央の第１輪部と左右に設けた小径の第２輪部とからなり、該第２輪部にチェーンのノッチ部のピッチに合わせて補助ピン部を設けているので、前記チェーンが駆動ホイールの駆動力により正転およびまたは逆転方向に循環する際に、従動輪は、チェーンのセグメントを連結する連結軸を第１輪部の外周面に衝合させ、各セグメントの下端を第２輪部の外周面に衝合させ、セグメントのノッチ部に補助ピン部を嵌合させて駆動ホイールによる循環動の障害とならない程度にノッチ部に僅かに掛止めさせることで、駆動輪に倣った循環動を確実に行わせることができる。
このように前記チェーンと従動ホイール間のスリップの発生を抑えることで、特に、従動ホイールの第２輪部とこれに接触するチェーンのサイドリンクの下端面の変形を防止することができ、信頼性及び耐久性を高めることができる。 As described above, according to the present invention, the driven wheel is composed of the central first wheel portion and the small second wheel portions provided on the left and right sides, and the auxiliary pin is adapted to the second wheel portion in accordance with the pitch of the notch portion of the chain. When the chain circulates in the forward or reverse direction by the driving force of the drive wheel, the driven wheel impinges the connecting shaft for connecting the chain segments to the outer peripheral surface of the first wheel portion. The lower end of each segment is abutted with the outer peripheral surface of the second wheel part, and the auxiliary pin part is fitted to the notch part of the segment so that it does not hinder the circulation movement by the drive wheel. By stopping, the circulating motion following the drive wheel can be surely performed.
By suppressing the occurrence of slip between the chain and the driven wheel in this way, in particular, it is possible to prevent deformation of the second wheel portion of the driven wheel and the lower end surface of the side link of the chain that contacts the second wheel portion. And durability can be increased.

従動ホイールの斜視図である。It is a perspective view of a driven wheel. 同側面図である。It is the same side view. 図２のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. セグメントを連結した無端状のチェーンの一部を示す側面図である。It is a side view which shows a part of endless chain which connected the segment. 一方の無端チェーンの一部を示す平面図である。It is a top view which shows a part of one endless chain. 従動ホールにチェーンが捲回された状態を示す側面図である。It is a side view which shows the state by which the chain was wound by the driven hole. 同断面図である。FIG. 従来の従動ホイールを示す図で（ａ）は側面図（ｂ）は断面図である。It is a figure which shows the conventional driven wheel, (a) is a side view (b), It is sectional drawing. 別の従来の従動ホイールを示す側面図である。It is a side view which shows another conventional driven wheel.

この発明は、従動ホイールの外輪部の下段に配置された第２輪部に小径の補助ピン部を設けることで、従動ホイールにより循環するチェーンのノッチ部に僅かな掛止力を作用させて、ノッチ部を有するチェーンの正逆の循環動の確実性を実現した。
以下に、この発明の汚泥掻き寄せ装置の実施の形態を図面を参照しながら説明する。 This invention provides a small latching force on the notch portion of the chain circulating by the driven wheel by providing a small-diameter auxiliary pin portion in the second wheel portion arranged at the lower stage of the outer ring portion of the driven wheel, The certainty of the forward and reverse circulation motion of the chain with the notch is realized.
Embodiments of the sludge scraping device of the present invention will be described below with reference to the drawings.

［汚泥掻き寄せ装置］
汚泥掻き寄せ装置は、図示しないが、左右一対の無端チェーンと、該一対の無端チェーンを同期して循環動させるために沈殿槽の側壁側に対向して設けられる複数の一対の従動ホイールと、同じく対向して設けられる一対の駆動駆動ホイールと、前記一対の無端チェーンに一定間隔を置いて掛け渡される複数の掻寄板（フライト）（図４参照）とから構成されており、前記無端チェーンは、双方が同じ軌道を採るようにそれぞれのホイールに巻き掛けられる公知の基本構成からなっている。 [Sludge scraping device]
The sludge scraping device is not shown, but a pair of left and right endless chains, a plurality of a pair of driven wheels provided facing the side walls of the settling tank in order to circulate and synchronize the pair of endless chains, Similarly, the endless chain includes a pair of drive drive wheels provided opposite to each other, and a plurality of scraping plates (flights) (see FIG. 4) spanned between the pair of endless chains at regular intervals. Consists of a known basic structure that is wound around each wheel so that both take the same track.

［チェーンのセグメント］
ここで、使用するチェーンの一例は、前記特許第４２４５１８６号公報に準じる構成であって、同一形状のセグメント１を多数連結して構成されている。
このセグメント１は、図４および図５に示すように、一方を幅狭とし、他方を幅広となるように離間して対峙する左右一対のサイドリンク２、２を有している。
該一対のサイドリンク２、２は、本実施例の場合、略中央位置まで幅狭間隔で平行に延びる幅狭部２１と、該幅狭部２１の端部から漸次幅広に拡開する拡開部２２と、該拡開部２２の端部の幅広間隔を維持して平行に延びる幅広部２３とからなっている。 [Chain segment]
Here, an example of the chain to be used is a configuration according to the above-mentioned Japanese Patent No. 4245186, and is configured by connecting a number of segments 1 having the same shape.
As shown in FIGS. 4 and 5, the segment 1 has a pair of left and right side links 2 and 2 facing each other so that one side is narrow and the other is wide.
In the case of the present embodiment, the pair of side links 2 and 2 includes a narrow portion 21 extending in parallel at a narrow interval to a substantially central position, and an expansion that gradually widens from the end of the narrow portion 21. The portion 22 and a wide portion 23 that extends in parallel while maintaining a wide space at the end of the widened portion 22.

前記幅狭部２１では、筒状の第１連結部３によってサイドリンク２、２が連結されている。
そして、第１連結部３の中空と幅狭部２１のサイドリンク２、２間を貫通する第１孔部３ａが形成されて、第１の軸受形成孔となっている。
次に、前記幅広部２３には、各サイドリンク２に一体に形成されて外方へ突出するボス状の第２連結部４がそれぞれ形成されている。
そして、上記第２連結部４と幅広部２３には、これらを一連に貫通すると共に、前記第１孔部３ａと同径の孔からなる第２孔部４ａが形成されて、第２の軸受形成孔となっている。 In the narrow portion 21, the side links 2 and 2 are connected by the cylindrical first connecting portion 3.
And the 1st hole 3a penetrated between the hollow of the 1st connection part 3 and the side links 2 and 2 of the narrow part 21 is formed, and it is a 1st bearing formation hole.
Next, the wide portion 23 is formed with a boss-like second connecting portion 4 that is integrally formed with each side link 2 and protrudes outward.
The second connecting portion 4 and the wide portion 23 pass through them in series and are formed with a second hole portion 4a having a hole having the same diameter as the first hole portion 3a. It is a formation hole.

各サイドリンク２、２に形成された第２孔部４ａは、同一軸線上に配置されている。
従って、一方のセグメント１の第２孔部４ａ間に、他方のセグメントの第１孔部３ａを同軸線状に揃えることで、第１の軸受形成孔と第２の軸受形成孔が整合して、後述の連結軸５の軸受孔が形成される。
前記幅狭部２１の横幅（チェーン進行方向と直交する方向）の外形寸法は、幅広部２３の対峙するサイドリンク２、２間の内側寸法より僅かに短く設定されている。
そこで、一方のセグメント１の幅広部２３のサイドリンク間の隙間２４に他方のセグメント１の幅狭部２１を挿入して、一方のセグメント１の第２孔部４ａ間に、他方のセグメントの第１孔部３ａを整合して、連結軸５を通してその両端を第２連結部４側に固定して、セグメント１、１相互を屈曲可能に連結する。 The 2nd hole 4a formed in each side link 2 and 2 is arrange | positioned on the same axis line.
Therefore, by aligning the first hole 3a of the other segment in a coaxial line between the second holes 4a of one segment 1, the first bearing formation hole and the second bearing formation hole are aligned. A bearing hole for the connecting shaft 5 to be described later is formed.
The outer dimension of the width of the narrow part 21 (direction perpendicular to the chain traveling direction) is set slightly shorter than the inner dimension between the side links 2 and 2 facing each other.
Therefore, the narrow portion 21 of the other segment 1 is inserted into the gap 24 between the side links of the wide portion 23 of the one segment 1, and the second segment 4 of the other segment 1 is inserted between the second holes 4 a of the one segment 1. The first hole 3a is aligned, both ends thereof are fixed to the second connecting portion 4 side through the connecting shaft 5, and the segments 1 and 1 are connected to each other so as to be bent.

連結軸５は、例えば、頭部を有する柱体とし、第２連結部４から抜け出た先端には抜け止めリングを嵌め込んで固定するなどの公知の構成を用いることができる。
上記のようにセグメント１、１同士が連結されることで、各セグメント１には前記第１連結部３から、第２連結部４に連結された他のセグメントの第１連結部３にいたるまで、即ち、幅狭部２１の中途位置から拡開部２２を含む間隙部Ｓが設定される。
この間隙部Ｓは、その横幅が、少なくとも幅狭部２１のサイドリンク２、２間の内側寸法を有しており、この間隙部Ｓを用いて駆動ホイールの歯部（図示せず）を噛み合わせることができる。 For example, the connecting shaft 5 may be a column having a head, and a well-known configuration may be used such that a retaining ring is fitted and fixed to the tip that has come out of the second connecting portion 4.
By connecting the segments 1 and 1 as described above, each segment 1 extends from the first connecting portion 3 to the first connecting portion 3 of another segment connected to the second connecting portion 4. That is, the gap S including the widened portion 22 is set from the middle position of the narrow portion 21.
The gap S has at least an inner dimension between the side links 2 and 2 of the narrow part 21, and the gap S is used to bite the teeth (not shown) of the drive wheel. Can be matched.

次に、拡開部２２には各サイドリンク２の下方で外方へ突出する厚肉の突出片部７が形成されており、該突出片部７の底面を幅広面にして一連に延びる略凹溝状のノッチ部８が形成されている。
これにより、前記間隙部Ｓを確保しながら所定幅を有するノッチ部８を形成してノッチ部８と駆動ホイールのピン（図示せず）との接触面積を広げることができる。
従って、駆動ホイールがピンホイールの場合には、上記ノッチ部８にピンを噛み合わせてチェーンを駆動させることができる。 Next, the widened portion 22 is formed with a thick protruding piece portion 7 that protrudes outward below each side link 2. The protruding piece portion 7 has a bottom surface that is wide and extends in a series. A concave groove-shaped notch 8 is formed.
As a result, the notch portion 8 having a predetermined width can be formed while ensuring the gap portion S, and the contact area between the notch portion 8 and the pin (not shown) of the drive wheel can be increased.
Therefore, when the drive wheel is a pin wheel, the chain can be driven by engaging the pin with the notch portion 8.

上記セグメント１を無端状に多数連結したチェーンは、公知の駆動ホイールと後述の従動ローラ１０によって、循環動させることができる。
駆動ホイールは、歯車式でもよいし、前記チェーンのノッチ部８と係合するピン式であってもよい。 A chain in which many segments 1 are connected endlessly can be circulated by a known drive wheel and a driven roller 10 described later.
The drive wheel may be a gear type or a pin type that engages with the notch portion 8 of the chain.

［従動ホイール］
従動ホイール１０は合成樹脂製からなっており、図１〜３に示すように、中央に回転軸を取り付ける孔１１ａとボス部１１を有し、該ボス部１１から放射状に延びる複数（図示例では１１本）のスポーク部１２と、該スポーク部１２に支持される円環状の外輪部１３とからなっている。
ここでスポーク部１２は横断面十字形状からなっている。 [Follow wheel]
The driven wheel 10 is made of synthetic resin, and has a hole 11a and a boss portion 11 for attaching a rotating shaft at the center, as shown in FIGS. 1 to 3, and a plurality of (in the illustrated example) radially extending from the boss portion 11. 11 spoke portions 12 and an annular outer ring portion 13 supported by the spoke portions 12.
Here, the spoke portion 12 has a cross-shaped cross section.

［外輪部］
外輪部１３は、外輪部１３の外周面で、軸方向の中央で突出する大径の第１輪部１４と、該第１輪部１４の左右両側に段差部を介して平行に左右一対に連設される同心小径の第２輪部１５とからなっている。 [Outer ring part]
The outer ring portion 13 is a large-diameter first wheel portion 14 that protrudes at the center in the axial direction on the outer peripheral surface of the outer ring portion 13, and a pair of left and right sides parallel to each other on both left and right sides of the first wheel portion 14 via stepped portions. It consists of a concentric small diameter second wheel portion 15 which is continuously provided.

［第１輪部］
前記第１輪部１４は、その外周面が外輪部１３の頂面１４ａとなり、該頂面１４ａは平坦な表面からなる縦断面円形状からなっている。
この頂面１４ａは、チェーンのセグメント１相互を連結する連結軸５の底面が衝合するように高さが設定されている。 [First wheel part]
The outer peripheral surface of the first ring portion 14 is a top surface 14a of the outer ring portion 13, and the top surface 14a has a circular shape in a vertical cross section formed of a flat surface.
The height of the top surface 14a is set so that the bottom surfaces of the connecting shafts 5 that connect the chain segments 1 to each other abut each other.

［第２輪部］
第２輪部１５は、外輪部１３の底面を構成するもので、前記第１輪部１４の内周面１４ｂと一連となる左右一対の内周面１５ｂを有している。
また、第２輪部１５の外周面１５ａは、平坦な表面で、前記台１輪部の頂面１４ａより小径の縦断面円形状からなっている。 [Second wheel part]
The second wheel portion 15 constitutes the bottom surface of the outer ring portion 13 and has a pair of left and right inner peripheral surfaces 15 b that are in series with the inner peripheral surface 14 b of the first wheel portion 14.
Moreover, the outer peripheral surface 15a of the 2nd ring part 15 is a flat surface, and consists of the vertical cross-section circular shape of a diameter smaller than the top surface 14a of the said stand 1 ring part.

［補助ピン部］
前記一対の第２輪部１５の外周面１５ａ上には、従動ホイール１０の軸線と平行する同一線上に沿って補助ピン部１６が同軸線上で左右一対に設けられている。
図示例の場合、前記スポーク部１２と同様に１１個の補助ピン部１６が、左右の第２輪部１５に揃って固着されている。
該補助ピン部１６は、図示例の場合、中空を有する円筒状からなっており、該補助ピン部１６の軸線が従動ホイール１０の軸線と平行となるように、横倒状に配置している。 [Auxiliary pin part]
On the outer peripheral surface 15 a of the pair of second wheel portions 15, auxiliary pin portions 16 are provided in a pair of left and right on the same line along the same line parallel to the axis of the driven wheel 10.
In the case of the illustrated example, eleven auxiliary pin portions 16 are fixedly aligned with the left and right second wheel portions 15 in the same manner as the spoke portion 12.
In the case of the illustrated example, the auxiliary pin portion 16 has a hollow cylindrical shape, and is arranged sideways so that the axis of the auxiliary pin portion 16 is parallel to the axis of the driven wheel 10. .

本実施例では、上記補助ピン部１６は、その上端が前記第１輪部１４の頂面１４ａとほぼ同じ位置で、ノッチ部８の空間よりは小さい径となるように大きさが設定されている。
そして、補助ピン部１６は、従動ホイール１０にチェーンを捲回した際に、連結されたセグメント１のノッチ部８と整合するように、第２輪部１５の外周面１５ａに沿って、前記ノッチ部８のピッチ間隔と同一または複数倍の間隔で等間隔に配置されている In the present embodiment, the size of the auxiliary pin portion 16 is set so that the upper end of the auxiliary pin portion 16 is substantially the same position as the top surface 14a of the first wheel portion 14 and has a smaller diameter than the space of the notch portion 8. Yes.
And the auxiliary pin part 16 is notched along the outer peripheral surface 15a of the second wheel part 15 so as to align with the notch part 8 of the connected segment 1 when the chain is wound around the driven wheel 10. Arranged at equal intervals at the same interval or multiple times as the pitch interval of the portion 8

上構成からなっているので、従動ホイール１０にチェーンが捲回されると、セグメント１を連結する連結軸５は前記第１輪部１４の頂面１４ａと衝合し、セグメント１の下端は第２輪部１５の外周面１５ａと接し、セグメントのノッチ部８内には前記補助ピン部１６がチェーンの回転方向およびノッチ部８の頂部との間にスペースを有して嵌合された状態となる。   When the chain is wound around the driven wheel 10, the connecting shaft 5 for connecting the segment 1 abuts with the top surface 14a of the first wheel portion 14, and the lower end of the segment 1 is The auxiliary pin portion 16 is in contact with the outer peripheral surface 15a of the two-wheel portion 15 and is fitted in the segment notch portion 8 with a space between the rotational direction of the chain and the top of the notch portion 8; Become.

そこで、駆動ホイールによって循環駆動するチェーンは、従動ホイール１０によってセグメント１の下端および連結軸１５がそれぞれ第１輪部１４の頂面１４ａと第２輪部１５の外周面１５ａと衝合し、小さな補助ピン部１６はノッチ部８内に配置されるので、ノッチ部８は補助ピン部１６とのスペースの分だけ規制されることなく自由に移動でき、その範囲を超えると回転方向に規制されることになる。
従って、チェーンの回転方向が正転時に限らず、逆転時においてもノッチ部８に補助的に掛止力を生じさせて、チェーンの循環動をスムーズに行わせることができる。 Therefore, the chain driven and circulated by the drive wheel is small because the driven wheel 10 causes the lower end of the segment 1 and the connecting shaft 15 to abut the top surface 14a of the first wheel portion 14 and the outer peripheral surface 15a of the second wheel portion 15, respectively. Since the auxiliary pin portion 16 is disposed in the notch portion 8, the notch portion 8 can be freely moved without being restricted by the space with the auxiliary pin portion 16, and is restricted in the rotational direction when exceeding the range. It will be.
Therefore, the chain rotation direction is not limited to the forward rotation, and even when the chain is rotating in the reverse direction, a catching force can be generated supplementarily to the notch portion 8 so that the chain can be circulated smoothly.

この発明で、ノッチ式チェーンのセグメントの形状は上記実施例に限定されるものではない。またチェーンは正転用、正逆転用のいすれでもよい。
その他、この発明は上記実施例に限定されるものではなく、要するにこの発明の要旨を変更しない範囲で種々設計変更しうること勿論である。 In the present invention, the shape of the segment of the notch chain is not limited to the above embodiment. The chain may be either forward or reverse.
In addition, the present invention is not limited to the above-described embodiments, and it goes without saying that various design changes can be made without changing the gist of the present invention.

１ セグメント
２ サイドリンク
３ 第１連結部
３ａ 中空孔
４ 第２連結部
４ａ 貫通孔
５ 連結軸
５ｂ 金属製の芯棒
７ 突出片部
７ａ ガイド片部
８ ノッチ部
１０ 従動ホイール
１１ ボス部
１２ スポーク部
１３ 外輪部
１４ 第１輪部
１４ａ 頂面
１４ｂ 内周面
１５ 第２輪部
１５ａ 外周面
１５ｂ 内周面
１６ 補助ピン部
３０ 従来の従動ホイール DESCRIPTION OF SYMBOLS 1 Segment 2 Side link 3 1st connection part 3a Hollow hole 4 2nd connection part 4a Through-hole 5 Connection shaft 5b Metal core rod 7 Projection piece part 7a Guide piece part 8 Notch part 10 Drive wheel 11 Boss part 12 Spoke part 13 outer ring portion 14 first wheel portion 14a top surface 14b inner peripheral surface 15 second wheel portion 15a outer peripheral surface 15b inner peripheral surface 16 auxiliary pin portion 30 conventional driven wheel

Claims (3)

合成樹脂製のノッチチェーンを駆動ホイールに連動して循環動させる従動ホイールを備えた汚泥掻き寄せ装置において、
汚泥掻き寄せ装置の駆動ホイールに噛合する合成樹脂製のチェーンのセグメントが、チェーン進行方向と直交する方向に対峙する一対のサイドリンク間の間隔の一方を幅狭部とし他方を幅広部とし、各サイドリンクの底面にノッチ部を設けてなり、一方のセグメントの幅狭部を他方のセグメントの幅広部内に嵌合し、双方のセグメントの重なった個所を連結軸で枢着して無端のチェーンを形成しており、
前記駆動ホイールに連動する従動ホイールが、
従動ホイールの外周面で軸方向の中央で突出する大径の第１輪部と、該第１輪部の左右両側に段差部を介して左右一対に連設される同心小径の第２輪部とからなり、
該一対の第２輪部の外周面上で、従動ホイールの軸線と平行する同一線上に沿って略横倒円柱状の補助ピン部を幅方向に左右一対に設け、該補助ピン部は、第２輪部の外周面に沿って、ノッチチェーンのセグメントのピッチ間隔と同一または複数倍の間隔で等間隔に配置されていることを特徴とする汚泥掻き寄せ装置。 In a sludge scraping device equipped with a driven wheel that circulates a notch chain made of synthetic resin in conjunction with the drive wheel,
The segment of the synthetic resin chain that meshes with the drive wheel of the sludge scraping device has one of the intervals between the pair of side links facing each other in the direction orthogonal to the direction of travel of the chain as the narrow portion and the other as the wide portion. A notch is provided on the bottom of the side link, the narrow part of one segment is fitted into the wide part of the other segment, and the overlapping part of both segments is pivotally attached to the connecting shaft to form an endless chain. Formed,
A driven wheel that is linked to the drive wheel,
A large-diameter first wheel portion that protrudes from the outer peripheral surface of the driven wheel at the center in the axial direction, and a second concentric small-diameter wheel portion that is connected to the left and right sides of the first wheel portion via a stepped portion. And consist of
On the outer peripheral surfaces of the pair of second wheel portions, a pair of substantially pinned cylindrical auxiliary pin portions are provided in the width direction along the same line parallel to the axis of the driven wheel. A sludge scraping device, wherein the sludge scraping device is arranged at equal intervals along the outer peripheral surface of the two wheel portions at intervals equal to or a multiple of the pitch interval of the segments of the notch chain. 補助ピン部は、ノッチ部が外嵌した際にノッチ部との間に隙間が生じる大きさに設定されていることを特徴とする請求項１に記載の汚泥掻き寄せ装置。   The sludge scraping device according to claim 1, wherein the auxiliary pin portion is set to a size such that a gap is formed between the auxiliary pin portion and the notch portion when the notch portion is externally fitted. 従動ホイールが合成樹脂からなっており、合成樹脂製のノッチチェーンの従動ホイールとして用いられることを特徴とする請求項１または２に記載の汚泥掻き寄せ装置。   The sludge scraping device according to claim 1 or 2, wherein the driven wheel is made of a synthetic resin and is used as a driven wheel of a notch chain made of synthetic resin.
JP2009275005A 2009-12-02 2009-12-02 Sludge scraping device Active JP5001997B2 (en)

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