JP5121409B2 - Synthetic resin roller - Google Patents

Synthetic resin roller Download PDF

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JP5121409B2
JP5121409B2 JP2007294694A JP2007294694A JP5121409B2 JP 5121409 B2 JP5121409 B2 JP 5121409B2 JP 2007294694 A JP2007294694 A JP 2007294694A JP 2007294694 A JP2007294694 A JP 2007294694A JP 5121409 B2 JP5121409 B2 JP 5121409B2
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pipe
bearing
synthetic resin
bearing unit
intermediate pipe
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JP2009121559A (en
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實 近藤
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株式会社Ｊｒｃ
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/80—Labyrinth sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls

Description

この発明は、ベルトコンベヤのベルトを支承するローラや並列状に並べて搬送路を形成する際などに用いる合成樹脂製のローラに関する。   The present invention relates to a roller for supporting a belt of a belt conveyor and a synthetic resin roller used when forming a conveyance path by arranging in parallel.

上述のような用途に使用するローラは、通常金属製のパイプと、このパイプの両端内に嵌入して上記パイプの端縁に固持させた金属製の軸受端板と、この軸受端板内に嵌入して外輪を不回転状態に保持したベアリングと、この両側のベアリングの内輪に両端部を貫通させたシャフトとで構成している。   The roller used for the above-mentioned application is usually a metal pipe, a metal bearing end plate fitted into both ends of the pipe and fixed to the end of the pipe, and the bearing end plate. The bearing includes a bearing that is inserted and holds the outer ring in a non-rotating state, and a shaft that has both ends penetrated through the inner rings of the bearings on both sides.

ところが金属製のため、過大な重量や耐錆性などに難があるとのことで、合成樹脂製のローラが提案された（特許文献１及び２）。
実公昭４２−１２７５４号公報 特開平６−２００９２５号公報 However, since it is made of metal, there are difficulties in excessive weight, rust resistance, etc., and synthetic resin rollers have been proposed (Patent Documents 1 and 2).
Japanese Utility Model Publication No.42-12754 Japanese Patent Laid-Open No. 6-200935

ところで、特許文献１のローラは、胴体の両端内周面に周溝を設けて、この周溝に軸受を構成する内側板と外側板とを嵌入したのち、胴体の端部を内方に折曲して外側板の周縁部を固持するので、固持加工に手数がかかり、又胴体の軸長を長くすると、シャフトに対する胴体の中間部分の支持がないため、搬送物が鉱物などの重量物であると、胴体が重量物により撓んで破損するなどの問題が発生した。   By the way, the roller of Patent Document 1 is provided with a circumferential groove on both inner peripheral surfaces of the fuselage, and after inserting an inner plate and an outer plate constituting the bearing into the circumferential groove, the end of the fuselage is folded inward. Since the outer peripheral plate is bent and fixed, it takes a lot of work to hold, and if the axial length of the fuselage is increased, there is no support for the middle part of the fuselage against the shaft. In some cases, there was a problem that the fuselage was bent and damaged by heavy objects.

また、特許文献２のローラにあっても、筒状のローラの両端内にベアリングを抱持したベアリングケースを嵌入し、ローラに対するベアリングケースの回転方向のスリップを噛み合う係合関係により阻止するようにしている。   Further, even in the roller of Patent Document 2, a bearing case holding a bearing is inserted into both ends of a cylindrical roller, and slippage in the rotational direction of the bearing case with respect to the roller is prevented by an engaging relationship. ing.

このような構成により回転方向のスリップを阻止する係合関係の構造を成形によって設けるので、構造が複雑になって成形部品のコストが大幅にアップすると共に、係合関係の噛み合う嵌合に細心の注意をはらうなどのため手間がかかる。   With such a configuration, an engaging structure that prevents slippage in the rotational direction is provided by molding, so that the structure becomes complicated and the cost of the molded part is greatly increased. It takes time and attention.

特に、ローラの中間部分のシャフトに対する支持がないため、前述の特許文献１と同様の問題が発生する。すなわち、特許文献１及び２のローラによる軸長を長くすることができず、軸長に制約を受ける問題が発生した。   In particular, since there is no support for the shaft at the intermediate portion of the roller, the same problem as in Patent Document 1 described above occurs. That is, the shaft length by the rollers of Patent Documents 1 and 2 cannot be increased, and there is a problem that the shaft length is restricted.

そこで、この発明の課題は、上述の問題を解消した合成樹脂製のローラを提供することにある。   Accordingly, an object of the present invention is to provide a synthetic resin roller that solves the above-described problems.

上記の課題を解決するために、この発明は、合成樹脂製の端パイプと、この端パイプの成形の際不回転状態に外輪を拘束して内蔵したベアリングとで構成した対の端軸受ユニットと、この端パイプと同径の合成樹脂製の中継ぎパイプと、この中継ぎパイプの成形の際不回転状態に外輪を拘束して内蔵したベアリングとで構成した中継ぎ中間軸受ユニットと、端パイプと同径の合成樹脂中間パイプとからなり、上記端軸受ユニット間に少なくとも１本の中間パイプ、この中間パイプ間に中継ぎ中間軸受ユニットを介在して直列状に並べると共に、上記端パイプと中間パイプとの対向軸及び上記中間パイプと中継ぎパイプとの対向端を圧着接合し、上記片方の端軸受ユニットのベアリングから中間パイプ内、中継ぎ中間軸受ユニットのベアリング、中間パイプ内をへてもう片方の端軸受ユニットのベアリングにシャフトを貫通させた構成を採用する。 In order to solve the above-described problems, the present invention provides a pair of end bearing units configured by an end pipe made of synthetic resin and a bearing that restrains and incorporates an outer ring in a non-rotating state when the end pipe is molded. A relay intermediate bearing unit composed of a synthetic resin intermediate pipe having the same diameter as this end pipe, and a bearing incorporated by restraining the outer ring in a non-rotating state when the intermediate pipe is molded, and the same diameter as the end pipe The synthetic resin intermediate pipe is arranged in series with at least one intermediate pipe between the end bearing units and the intermediate intermediate bearing unit between the intermediate pipes, and the end pipe and the intermediate pipe are opposed to each other. The shaft and the opposite end of the intermediate pipe and the intermediate pipe are joined by pressure bonding. From the bearing of the one end bearing unit to the intermediate pipe, the bearing of the intermediate intermediate bearing unit And f within the intermediate pipe to adopt a configuration in which passed through the shaft to the bearing of the other end bearing unit.

すると、合成樹脂製のベルト支承用のローラや搬送路用などのローラが得られる。   Then, a roller for supporting a belt made of synthetic resin or a roller for a conveyance path can be obtained.

以上のように、この発明の合成樹脂製のローラによれば、端軸受ユニットの端パイプの成形の際に、また中継ぎ中間軸受ユニットの中継ぎパイプの成形の際に外輪を不回転状態に拘束してベアリングを内蔵してあるので、シャフトの軸承ベアリングの手間のかかる組み込み作業が不要になると共に、端軸受ユニット間に中間パイプ、中間パイプ間に中継ぎ中間軸受ユニットを介在して、端パイプと中間パイプとの対向端及び中間パイプと中継ぎパイプとの対向端を圧着接合するので、中間パイプ及び中継ぎ中間軸受ユニットの使用数によってローラの軸長の長短を自由に設定することができる。 As described above, according to the synthetic resin roller of the present invention , the outer ring is restrained in a non-rotating state when the end pipe of the end bearing unit is formed and when the intermediate pipe of the intermediate intermediate bearing unit is formed. because are integral bearing Te, embedded operations laborious of bearing bearing shaft unnecessarily such Rutotomoni, intermediate pipe between the end bearing unit, by interposing the relay intermediate bearing unit between the intermediate pipe, and the end pipe Since the opposite end of the intermediate pipe and the opposite end of the intermediate pipe and the intermediate pipe are crimped and joined, the length of the roller shaft can be freely set depending on the number of intermediate pipes and intermediate intermediate bearing units used .

特に、シャフトの中間を軸承する中継ぎ中間軸受の使用によって荷重による撓み（変形）をなくして、安定した外観を維持することができる。   In particular, the use of a relay intermediate bearing that supports the middle of the shaft eliminates bending (deformation) due to a load and maintains a stable appearance.

この発明の実施形態を添付図面に基づいて説明する。
この発明の実施形態では、図１から図５に示すように、Ａはベルトコンベヤのベルトを支承したり、或いは搬送路を形成する用途などに使用する合成樹脂製のローラである。 Embodiments of the present invention will be described with reference to the accompanying drawings.
The implementation mode of the invention, as shown in FIG. 5 from FIG 1, A or bearing a belt of a belt conveyor, or a roller made of a synthetic resin used like in applications for forming a conveying path.

上記のローラＡは、合成樹脂製の端パイプ１と、この端パイプ１の成形の際不回転状態に外輪２を拘束して内蔵したベアリング３とで構成された対の端軸受ユニットＢと、この両端軸受ユニットＢ、Ｂ間に複数本直列状に並べて介在する合成樹脂製の中間パイプＣと、上記中間パイプＣ側に介在した中間軸受ユニットＤとからなり、端パイプ１と中間パイプＣの対向端及び中間パイプＣと中間軸受ユニットＤの中継ぎパイプ２１の対向端を圧着接合したジョイント部４により連結する。 The roller A includes a pair of end bearing units B composed of an end pipe 1 made of synthetic resin and a bearing 3 that restrains and incorporates the outer ring 2 in a non-rotating state when the end pipe 1 is molded. A synthetic resin intermediate pipe C interposed between the both end bearing units B, B in series and an intermediate bearing unit D interposed on the intermediate pipe C side . The opposed end and the intermediate pipe C and the opposed end of the intermediate pipe 21 of the intermediate bearing unit D are connected by a joint portion 4 that is joined by pressure bonding.

上記の圧着接合は、既知の方法を採用して行なうもので、例えば、圧着しようとする周囲に電磁石を複数個配置し、さらにこの電磁石のそれぞれの対向する位置に所定の間隔を存して、複数個の電磁石を配置し、これら電磁石の極性を順次変化させることによって端パイプ１と中間パイプＣとの対向端面を振動させ、この振動により端面を摩擦させ、これによって発生する摩擦熱により端面を溶融接合（例えば特開平９−３９０９７号公報参照）する。勿論、端パイプ１と中間パイプＣの外径は、同一径になるようにする。   The above-described crimp bonding is performed using a known method, for example, a plurality of electromagnets are arranged around the circumference to be crimped, and further, a predetermined interval exists at each opposed position of the electromagnet, A plurality of electromagnets are arranged, and the opposite end surfaces of the end pipe 1 and the intermediate pipe C are vibrated by sequentially changing the polarities of the electromagnets, the end surfaces are rubbed by this vibration, and the end surfaces are caused by frictional heat generated thereby. Melt bonding is performed (for example, see JP-A-9-39097). Of course, the outer diameters of the end pipe 1 and the intermediate pipe C are made the same.

なお、図３に示すように中間パイプＣの内面軸承方向に多数条の補助リブ７を設け、又、図４及び図５に示すように端パイプ１と内側のベアリング３の包持筒８とを放射状のリブ９で連結して荷重条件を満たすようにするとよい。   As shown in FIG. 3, a plurality of auxiliary ribs 7 are provided in the inner shaft bearing direction of the intermediate pipe C. Further, as shown in FIGS. Are connected by radial ribs 9 so as to satisfy the load condition.

上記の中間軸受ユニットＤは、中間パイプＣと同径の合成樹脂製の中継ぎパイプ２１の成形の際、シャフト６の軸承ベアリング３の外輪２を中継ぎパイプ２１の中心部の包持筒８により抱き込んで不回転に拘束して内蔵する。なお、包持筒８は、放射状のリブ９を介し中継ぎパイプ２１と一体に成形してある。   The intermediate bearing unit D holds the outer ring 2 of the bearing 3 of the shaft 6 by the holding cylinder 8 at the center of the intermediate pipe 21 when forming the synthetic resin intermediate pipe 21 having the same diameter as the intermediate pipe C. And incorporate it in a non-rotating manner. Note that the holding cylinder 8 is formed integrally with the intermediate pipe 21 through the radial ribs 9.

そして、片方の端軸受ユニットＢのベアリング３の内輪５から中間パイプＣの軸芯、中間軸受ユニットＤのベアリング３の内輪５、中間パイプＣ、端軸受ユニットＢのベアリング３の内輪５にシャフト６を貫通させて、ローラＡを形成する。   The shaft 6 extends from the inner ring 5 of the bearing 3 of the one end bearing unit B to the shaft core of the intermediate pipe C, the inner ring 5 of the bearing 3 of the intermediate bearing unit D, the inner ring 5 of the bearing 3 of the intermediate pipe C, and the end bearing unit B. To form a roller A.

なお、図示のように塵埃や水滴の侵入（ベアリング３に向かう）を防止するシール手段１０を施したり、シャフト６の抜け止めリング１１を施す。In addition, as shown in the figure, a sealing means 10 for preventing intrusion of dust and water droplets (toward the bearing 3) is provided, and a retaining ring 11 for the shaft 6 is provided.

また、中間パイプＣの数は、適宜決定し、中間パイプＣの本数に応じて中間パイプＣ間に中間軸受ユニットＤを介在する。Further, the number of intermediate pipes C is determined as appropriate, and intermediate bearing units D are interposed between the intermediate pipes C according to the number of intermediate pipes C.

この発明のローラを示す縦断正面図。Longitudinal front view showing a B over La of the present invention. 同上の要部を示す縦断拡大正面図。The longitudinal cross-section enlarged front view which shows the principal part same as the above. 中間パイプの縦断側面図。The longitudinal side view of an intermediate pipe. 端パイプの縦断側面図。The longitudinal section side view of an end pipe. 端パイプの他の部分の縦断側面図。The vertical side view of the other part of an end pipe.

Ａ ローラ
Ｂ 端軸受ユニット
Ｃ 中間パイプ
Ｄ 中間軸受ユニット
１ 端パイプ
２ 外輪
３ ベアリング
４ ジョイント部
５ 内輪
６ シャフト
７、９ リブ
８ 包持筒
１０ シール手段
２１ 中継ぎパイプ A Roller B End bearing unit C Intermediate pipe D Intermediate bearing unit 1 End pipe 2 Outer ring 3 Bearing 4 Joint part 5 Inner ring 6 Shaft 7 and 9 Rib 8 Holding cylinder 10 Sealing means 21 Relay pipe

Claims (1)

合成樹脂製の端パイプと、この端パイプの成形の際不回転状態に外輪を拘束して内蔵したベアリングとで構成した対の端軸受ユニットと、この端パイプと同径の合成樹脂製の中継ぎパイプと、この中継ぎパイプの成形の際不回転状態に外輪を拘束して内蔵したベアリングとで構成した中継ぎ中間軸受ユニットと、端パイプと同径の合成樹脂中間パイプとからなり、上記端軸受ユニット間に少なくとも１本の中間パイプ、この中間パイプ間に中継ぎ中間軸受ユニットを介在して直列状に並べると共に、上記端パイプと中間パイプとの対向軸及び上記中間パイプと中継ぎパイプとの対向端を圧着接合し、上記片方の端軸受ユニットのベアリングから中間パイプ内、中継ぎ中間軸受ユニットのベアリング、中間パイプ内をへてもう片方の端軸受ユニットのベアリングにシャフトを貫通させたことを特徴とする合成樹脂製ローラ。   A pair of end bearing units composed of a synthetic resin end pipe and a bearing that is built by restraining the outer ring in a non-rotating state when the end pipe is molded, and a synthetic resin intermediate joint having the same diameter as the end pipe The above-mentioned end bearing unit is composed of a relay intermediate bearing unit composed of a pipe and a bearing in which the outer ring is constrained and incorporated in a non-rotating state when the intermediate pipe is molded, and a synthetic resin intermediate pipe having the same diameter as the end pipe. At least one intermediate pipe is interposed between the intermediate pipes and a relay intermediate bearing unit is interposed between the intermediate pipes. The opposing shafts of the end pipe and the intermediate pipe and the opposing ends of the intermediate pipe and the intermediate pipe are arranged. The other end bearing unit is joined by crimping from the bearing of one end bearing unit to the inside of the intermediate pipe, the bearing of the intermediate intermediate bearing unit, and the intermediate pipe. Synthetic resin roller, characterized in that passed through the shaft to the bets bearing.
JP2007294694A 2007-11-13 2007-11-13 Synthetic resin roller Active JP5121409B2 (en)

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