JP2003083497A - Lubricating oil automatic supply device - Google Patents
Lubricating oil automatic supply deviceInfo
- Publication number
- JP2003083497A JP2003083497A JP2001275122A JP2001275122A JP2003083497A JP 2003083497 A JP2003083497 A JP 2003083497A JP 2001275122 A JP2001275122 A JP 2001275122A JP 2001275122 A JP2001275122 A JP 2001275122A JP 2003083497 A JP2003083497 A JP 2003083497A
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- piston
- supply device
- pressing member
- storage cylinder
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、機械装置等の軸受
部にグリース等の潤滑油を、一定量ずつ長期間に渡って
供給することができる潤滑油自動供給装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating oil automatic supply device capable of supplying a lubricating oil such as grease to a bearing portion of a mechanical device or the like in fixed amounts over a long period of time.
【０００２】[0002]
【従来の技術】従来、機械の軸受箇所に定量のグリース
を供給する方法として、グリースガンによる手動の方法
や電動ポンプによる集中給脂法がある。グリースガンで
は、手作業のため作業効率が悪く、また、集中給脂法で
は作業効率は改善されるものの、装置が高価であるとい
う問題がある。そこで、上述の作業効率や設備費の問題
を解決する方法として、図３に示す潤滑油自動供給装置
７０が知られている。潤滑油自動供給装置７０において
は、収納容器７１内の中間部に摺動するピストン７２が
配置されており、ピストン７２のグリース吐出口７３側
にはグリース７４が充填され、一方、ピストン７２の反
対側には空気中の水分を吸湿孔７５を介して吸収して徐
々に膨張する膨張材７６が充填されている。この場合、
膨張材７６が膨張した容積と同じ容積のグリース７４が
グリース吐出口７３から機械の軸受箇所に供給されるよ
うになっている。なお、収納容器７１は、グリース７４
の残量を確認するために塩化ビニル等のプラスチックを
使用している。また、ピストン７２は鋼やアルミ等の金
属から作られている。2. Description of the Related Art Conventionally, as a method for supplying a fixed amount of grease to a bearing portion of a machine, there are a manual method using a grease gun and a concentrated greasing method using an electric pump. With the grease gun, the work efficiency is low due to manual work, and although the work efficiency is improved with the concentrated greasing method, there is a problem that the device is expensive. Therefore, as a method for solving the above-mentioned problems of work efficiency and equipment cost, an automatic lubricating oil supply device 70 shown in FIG. 3 is known. In the automatic lubricating oil supply device 70, a piston 72 that slides is arranged in the middle of the storage container 71, and the grease discharge port 73 side of the piston 72 is filled with grease 74. The side is filled with an expansion material 76 that absorbs moisture in the air through the moisture absorption holes 75 and gradually expands. in this case,
The grease 74 having the same volume as that of the expandable material 76 is supplied from the grease discharge port 73 to the bearing portion of the machine. The storage container 71 is made of grease 74
Plastics such as vinyl chloride are used to check the remaining amount of. The piston 72 is made of metal such as steel and aluminum.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記従
来の潤滑油自動供給装置７０においては、未だ解決すべ
き以下のような問題があった。膨張した膨張材７６の容
積と同じ容積のグリース７４しか供給できないので、膨
張材７６の反応速度当たりのグリース７４の供給量は自
ずと限られてしまい、長期間に渡って（１〜２年）グリ
ース７４を供給する為には、多量の膨張材７６を必要と
し、この結果、装置そのものが大型化すると言う問題が
あった。逆に、膨張材７６の反応速度を遅らせて、長期
間に渡ってグリース７４の供給を行おうとすると、膨張
材７６の反応速度がばらつき、安定したグリース７４の
供給ができなくなるという問題があった。また、膨張材
７６により直にピストン７２を押圧しているので、膨張
材７６の膨張のばらつきにより、ピストン７２と収納容
器７１との取り合い（ピストン７２の芯出し）精度を上
げないと、収納容器７１とピストン７２との摺動部がこ
ねて、グリース７４の供給が不可能となる場合もあっ
た。さらに、プラスチック製の収納容器７１は、熱等に
よって塑性変形が生じ、このため、ピストン７２と収納
容器７１とがせり合い、グリース７４の供給が不能とな
る場合もあった。However, the conventional automatic lubricating oil supply device 70 has the following problems to be solved. Since only the grease 74 having the same volume as that of the expanded expansive material 76 can be supplied, the supply amount of the grease 74 per reaction rate of the expansive material 76 is naturally limited, and the grease can be used for a long period (1-2 years). In order to supply 74, a large amount of expansion material 76 is required, and as a result, there is a problem that the device itself becomes large. On the contrary, if the reaction speed of the expansive material 76 is slowed down and the grease 74 is supplied for a long period of time, the reaction speed of the expansive material 76 varies, and the stable supply of the grease 74 cannot be achieved. . Moreover, since the piston 72 is directly pressed by the expansion material 76, the accuracy of the engagement between the piston 72 and the storage container 71 (centering of the piston 72) cannot be improved due to the variation in expansion of the expansion material 76, and the storage container In some cases, the sliding portion between 71 and the piston 72 was twisted, making it impossible to supply the grease 74. Further, the plastic storage container 71 is plastically deformed by heat or the like, which may cause the piston 72 and the storage container 71 to lie against each other, making it impossible to supply the grease 74.
【０００４】本発明はこのような事情に鑑みてなされた
もので、多くの潤滑油を長期間に渡って安定して供給で
き、かつコンパクトであり、軽量で安価な潤滑油自動供
給装置を提供することを目的とする。The present invention has been made in view of such circumstances, and provides an automatic lubricating oil supply device which can stably supply a large amount of lubricating oil over a long period of time, is compact, is lightweight, and is inexpensive. The purpose is to do.
【０００５】[0005]
【課題を解決するための手段】前記目的に沿う本発明に
係る潤滑油自動供給装置は、底部に吐出口が設けられ、
機械類の軸受部に供給される潤滑油が収納された有底の
潤滑油収納シリンダーと、潤滑油収納シリンダーに摺動
自在に配置され、一方面側が潤滑油に接するピストン
と、ピストンの他方面側に直接押圧する押し付け部材を
摺動移動可能に有し、内部には空気中の水分を吸収して
徐々に膨張する膨張材が収納され、膨張材の膨張によっ
て押し付け部材が外側に移動し、潤滑油収納シリンダー
に直列に固定された膨張材容器とを有し、ピストンの面
積は、押し付け部材の実質押し付け面積の１．１倍以上
あって、膨張材の膨張容積を増幅して潤滑油を吐出させ
る。これによって、ピストンを介して膨張材の膨張容積
を効果的に増幅して、より多くの潤滑油を徐々に吐出す
ることができる。さらに、面積の割合を変化させること
により、膨張材の反応速度を変えることなく、潤滑油の
供給量及び供給速度を必要に応じて自由に変えることが
できる。従来の潤滑油自動供給装置においては、膨張材
の膨張量とピストンのストローク量（容積）は同じとな
り、従って、多量の膨張材を必要とすると共に、潤滑油
の供給量及び供給速度の調整ができないが、これに対し
て、本発明においては、押し付け部材とピストンのスト
ロークは同じでも、ピストンの面積が、膨張材により押
圧される押し付け部材の実質押し付け面積より大きいの
で、少量の膨張材で、かつ状況に応じて、潤滑油の供給
量及び供給速度の調整ができる。According to the present invention, there is provided an automatic lubricating oil supply device, which is provided with a discharge port at a bottom thereof.
A bottomed lubricating oil storage cylinder that stores the lubricating oil that is supplied to the bearings of machinery, a piston that is slidably arranged in the lubricating oil storage cylinder, and one side of which is in contact with the lubricating oil, and the other side of the piston. A pressing member that directly presses against the side is slidably movable, an expansion material that absorbs moisture in the air and gradually expands is stored inside, and the pressing member moves to the outside by the expansion of the expansion material, It has an expansion material container fixed in series to a lubricating oil storage cylinder, and the area of the piston is 1.1 times or more of the substantial pressing area of the pressing member, and the expansion volume of the expansion material is amplified to supply the lubricating oil. Discharge. As a result, the expansion volume of the expansion material can be effectively amplified through the piston, and more lubricating oil can be gradually discharged. Furthermore, by changing the area ratio, the supply amount and supply speed of the lubricating oil can be freely changed as necessary without changing the reaction rate of the expansion material. In the conventional automatic lubricating oil supply device, the expansion amount of the expansion material and the stroke amount (volume) of the piston are the same. Therefore, a large amount of expansion material is required and the supply amount and supply speed of the lubricating oil can be adjusted. However, in the present invention, on the other hand, in the present invention, even if the pressing member and the stroke of the piston are the same, the area of the piston is larger than the substantial pressing area of the pressing member pressed by the expanding material, so a small amount of expanding material, Moreover, the supply amount and supply speed of the lubricating oil can be adjusted according to the situation.
【０００６】本発明に係る潤滑油自動供給装置におい
て、ピストンと押し付け部材との当接構造は、ピストン
又は押し付け部材の中心部に突出部があって、ピストン
への偏心荷重の伝達を防止する構成とすることもでき
る。これによって、押し付け部材を介して伝達される膨
張材による膨張力をピストンの中心部に伝達でき、潤滑
油収納シリンダーに対するピストンのせり合いを防止す
ることができる。本発明に係る潤滑油自動供給装置にお
いて、潤滑油は、ピストンと潤滑油収納シリンダーの底
部との間に設けられ、軸方向に伸縮可能で、排出口が吐
出口に連通する密閉式の収納袋に充填される構成とする
こともできる。これによって、潤滑油収納シリンダーに
おいて、例えば、熱変形、経年変化等による塑性変形が
生じた場合でも、安定して潤滑油の供給ができる。本発
明に係る潤滑油自動供給装置において、潤滑油収納シリ
ンダーと膨張材容器とは着脱可能に固定される構成とす
ることもできる。これによって、膨張材や不良部の部品
のみの交換が容易にできる。また、設置場所（スペー
ス）及び用途（潤滑油供給量）に応じて、膨張材容器は
変更することなく（場合によっては、膨張材容器の変更
も可能）、潤滑油収納シリンダーのみ、形状又は大きさ
を変更することができる。In the automatic lubricating oil supply device according to the present invention, the contact structure between the piston and the pressing member has a projection at the center of the piston or the pressing member to prevent transmission of an eccentric load to the piston. Can also be As a result, the expansion force of the expansion material that is transmitted through the pressing member can be transmitted to the center of the piston, and the piston can be prevented from engaging with the lubricating oil storage cylinder. In the automatic lubricating oil supply device according to the present invention, the lubricating oil is provided between the piston and the bottom of the lubricating oil storage cylinder, is expandable and contractible in the axial direction, and the discharge port communicates with the discharge port. It is also possible to have a configuration in which As a result, the lubricating oil can be stably supplied even in the case where plastic deformation due to thermal deformation, aging, or the like occurs in the lubricating oil storage cylinder. In the lubricating oil automatic supply device according to the present invention, the lubricating oil storage cylinder and the expansion material container may be detachably fixed. This makes it easy to replace only the expansive material and the defective part. In addition, depending on the installation location (space) and application (amount of lubricating oil supplied), the expanding material container does not need to be changed (the expanding material container can be changed in some cases), only the lubricating oil storage cylinder, shape or size Can be changed.
【０００７】本発明に係る潤滑油自動供給装置におい
て、ピストンの断面形状は円形とすることもできる。こ
れによって、製作が簡単になり、コンパクトな装置にで
きる。本発明に係る潤滑油自動供給装置において、潤滑
油収納シリンダー及びピストンは硬質合成樹脂からなっ
て、ピストンの板厚を１０ｍｍ以上とすることもでき
る。これによって、ピストンの剛性を大きくできると共
に、ピストンが潤滑油収納シリンダーに引っ掛かり難く
なるので、ピストンの変形等を抑制することができ、か
つピストンの摺動が良好となる。従って、潤滑油収納シ
リンダーとピストンとの取り合い精度を必要とせずに、
容易にピストンの位置合わせ（芯出し）が可能となる。
ピストンの板厚が１０ｍｍ未満では、ピストンの剛性が
小さく、変形等を抑制できない。本発明に係る潤滑油自
動供給装置において、膨張材容器は、押し付け部材が潤
滑油収納シリンダーの軸心と一致する直胴部を有し、押
し付け部材は直胴部が摺動可能となって、しかも、押し
付け部材の摺動部の長さは、ピストンのストロークより
２〜５０ｍｍの範囲で長くなるように構成することもで
きる。これによって、ピストンは潤滑油収納シリンダー
の軸心と一致して摺動するので、潤滑油の供給が安定し
ている。In the automatic lubricating oil supply apparatus according to the present invention, the piston may have a circular cross section. This simplifies manufacture and allows for a compact device. In the automatic lubricating oil supply device according to the present invention, the lubricating oil storage cylinder and the piston are made of hard synthetic resin, and the plate thickness of the piston can be 10 mm or more. As a result, the rigidity of the piston can be increased, and the piston is less likely to get caught in the lubricating oil storage cylinder, so that the deformation of the piston can be suppressed and the sliding of the piston becomes good. Therefore, without requiring the accuracy of fitting the lubricating oil storage cylinder and the piston,
The piston can be easily aligned (centered).
When the plate thickness of the piston is less than 10 mm, the rigidity of the piston is low and deformation or the like cannot be suppressed. In the automatic lubricating oil supply device according to the present invention, the expansion material container has a straight body portion in which the pressing member matches the axis of the lubricating oil storage cylinder, and the pressing member allows the straight body portion to slide. In addition, the length of the sliding portion of the pressing member can be configured to be longer than the stroke of the piston within the range of 2 to 50 mm. As a result, the piston slides in line with the axis of the lubricating oil storage cylinder, and the supply of lubricating oil is stable.
【０００８】[0008]
【発明の実施の形態】続いて、添付した図面を参照しつ
つ、本発明を具体化した実施の形態につき説明し、本発
明の理解に供する。ここに、図１は本発明の一実施の形
態に係る潤滑油自動供給装置の正断面図、図２は上半分
が同潤滑油自動供給装置の一部平断面図で、下半分が同
一部底面図である。なお、図２の上側半分は図１の矢視
Ａ−Ａ断面図を表しており、図２の下側半分は図１の矢
視Ｂ−Ｂ断面図を表している。BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. 1 is a front sectional view of an automatic lubricating oil supply device according to an embodiment of the present invention, and FIG. 2 is a partial plan sectional view of the automatic lubricating oil supply device in the upper half and the same portion in the lower half. It is a bottom view. It should be noted that the upper half of FIG. 2 represents a sectional view taken along the line AA of FIG. 1, and the lower half of FIG. 2 represents a sectional view taken along the line BB of FIG.
【０００９】図１及び図２に示すように、本発明の一実
施の形態に係る潤滑油自動供給装置１０は、機械類の軸
受部（図示せず）に供給される潤滑油の一例であるグリ
ース１１が収納された有底の潤滑油収納シリンダー１２
と、潤滑油収納シリンダー１２に摺動自在に配置され、
一方面１３側がグリース１１に接するピストン１４を備
えている。さらに、潤滑油自動供給装置１０は、ピスト
ン１４の他方面１５側に直接押圧する押し付け部材１６
を摺動移動可能に有しており、内部には空気中の水分を
吸収して徐々に膨張する膨張材１７が収納され、膨張材
１７の膨張によって押し付け部材１６が外側（図１では
下側）に移動し、潤滑油収納シリンダー１２に直列に取
り外し可能に固定された膨張材容器１８とを有してい
る。以下、これらについて詳しく説明する。As shown in FIGS. 1 and 2, an automatic lubricating oil supply apparatus 10 according to an embodiment of the present invention is an example of lubricating oil supplied to bearings (not shown) of machinery. Bottomed lubricating oil storage cylinder 12 containing grease 11
And is slidably arranged in the lubricating oil storage cylinder 12,
A piston 14 whose one surface 13 side is in contact with the grease 11 is provided. Further, the automatic lubricating oil supply device 10 includes a pressing member 16 that directly presses the other surface 15 side of the piston 14.
Is slidably movable, and an expansion material 17 that absorbs moisture in the air and gradually expands is housed inside. The expansion member 17 expands to push the pressing member 16 to the outside (lower side in FIG. 1). ), And an expansive material container 18 which is detachably fixed to the lubricating oil storage cylinder 12 in series. These will be described in detail below.
【００１０】潤滑油収納シリンダー１２は、中心部にグ
リース１１の吐出配管が接続される吐出口１９が形成さ
れた円板状の底部２０と、底部２０の外周内部に一体的
に接続されたシリンダー部２１と、シリンダー部２１の
先端外部に設けられたリング状のフランジ部２２とを備
えている。シリンダー部２１の長さＬは、ピストン１４
の最大厚さＴとピストン１４のストロークＳに余裕代α
を考慮した長さとしている。フランジ部２２は、複数
（図２に示すように、６箇所）のボルト２３、ナット２
４によって、座金２５、２６を介して膨張材容器１８と
着脱可能に締結されている。潤滑油収納シリンダー１２
は、グリース１１の残量が目視できるように、透明で強
度を備えた硬質合成樹脂の一例である透明強化プラスチ
ック（例えば塩化ビニルやアクリル等）から作製されて
いる。なお、ボルト２３及び座金２５の近傍のシリンダ
ー部２１及び底部２０は、干渉を避けるように座ぐり２
５ａが施されている。The lubricating oil storage cylinder 12 is a disc-shaped bottom portion 20 having a discharge port 19 formed in the center thereof to which a discharge pipe for the grease 11 is connected, and a cylinder integrally connected to the outer periphery of the bottom portion 20. It is provided with a portion 21 and a ring-shaped flange portion 22 provided outside the tip of the cylinder portion 21. The length L of the cylinder portion 21 is determined by the piston 14
Thickness T and stroke S of piston 14 allowance α
Has been taken into consideration. The flange part 22 includes a plurality of bolts 23 (six places as shown in FIG. 2) and nuts 2.
4 is detachably fastened to the expansive material container 18 via washers 25 and 26. Lubricating oil storage cylinder 12
Is made of transparent reinforced plastic (for example, vinyl chloride or acrylic) which is an example of a hard synthetic resin that is transparent and has strength so that the remaining amount of the grease 11 can be visually observed. In addition, the cylinder portion 21 and the bottom portion 20 near the bolt 23 and the washer 25 have a counterbore 2 so as to avoid interference.
5a is applied.
【００１１】断面形状が円形のピストン１４の外周部に
は、軸方向に所定の間隔を開けて２箇所にＯリング用溝
２７、２８が形成されており、Ｏリング用溝２７、２８
にはそれぞれＯリング２９が設けられている。ピストン
１４の一方面１３側は平面に形成されており、一方、ピ
ストン１４の他方面１５側において、外周部には表面が
平面に加工されたリング状で突出したストッパー部３０
が形成されると共に、中心部には膨張材１７側に突出し
た突出部の一例である曲面部３１が形成されている。曲
面部３１は押し付け部材１６の平面部に当接した構造と
なっている。このようにして、押し付け部材１６からピ
ストン１４へ伝達される膨張材１７による膨張荷重が偏
心荷重にならないように考慮しており、この結果、ピス
トン１４と潤滑油収納シリンダー１２とのせり合い等を
確実に防止することができる。なお、ピストン１４の材
質は塩化ビニル等の硬質合成樹脂とし、かつ、ピストン
１４と潤滑油収納シリンダー１２との取り合い精度を必
要とせず、容易にピストン１４の位置合わせ（芯出し）
ができるように、ピストン１４の最小板厚ｔを１０ｍｍ
としている。O-ring grooves 27 and 28 are formed at two locations on the outer peripheral portion of the piston 14 having a circular cross-sectional shape at predetermined intervals in the axial direction.
Each of them is provided with an O-ring 29. The one surface 13 side of the piston 14 is formed into a flat surface, and on the other hand, on the other surface 15 side of the piston 14, the stopper portion 30 that has a ring-shaped projecting surface is formed on the outer peripheral portion.
And a curved surface portion 31 which is an example of a protruding portion protruding toward the expansive material 17 is formed in the center portion. The curved surface portion 31 is in contact with the flat surface portion of the pressing member 16. In this way, the expansion load by the expansion member 17 transmitted from the pressing member 16 to the piston 14 is considered not to be an eccentric load, and as a result, the contact between the piston 14 and the lubricating oil storage cylinder 12 is prevented. It can be surely prevented. Note that the material of the piston 14 is a hard synthetic resin such as vinyl chloride, and the piston 14 and the lubricating oil storage cylinder 12 do not need to be fitted with precision, and the piston 14 can be easily aligned (centered).
So that the minimum plate thickness t of the piston 14 is 10 mm.
I am trying.
【００１２】膨張材容器１８は、潤滑油収納シリンダー
１２のフランジ部２２と接続されるリング状のフランジ
部３２と、フランジ部３２の内周部に接続された円筒部
３３と、円筒部３３の先端部に接続された円板状の天井
部３４とを備えている。膨張材容器１８は図１に示すよ
うに、各接続部が滑らかに接続されて一体成形された強
化プラスチックを用いている。膨張材容器１８の円筒部
３３の軸方向の中央部の対向する２箇所には、例えば、
直径５ｍｍの吸気孔３５が形成されており、吸気孔３５
を介して空気中の水分を内部に吸収するようになってい
る。The expander container 18 has a ring-shaped flange portion 32 connected to the flange portion 22 of the lubricating oil storage cylinder 12, a cylindrical portion 33 connected to the inner peripheral portion of the flange portion 32, and a cylindrical portion 33. And a disk-shaped ceiling portion 34 connected to the tip portion. As shown in FIG. 1, the expansive material container 18 uses reinforced plastic integrally formed by smoothly connecting the respective connecting portions. At two locations facing each other in the central portion in the axial direction of the cylindrical portion 33 of the expansive material container 18, for example,
An intake hole 35 having a diameter of 5 mm is formed.
The moisture in the air is absorbed inside via the.
【００１３】膨張材容器１８内には、その天井部３４に
接し、天井部３６を備えた円筒状の膨張材収納容器本体
３７が配置されており、膨張材収納容器本体３７内には
膨張材１７が充填されている。膨張材１７として、発生
応力の大きい（１００〜３００ｋｇｆ／ｃｍ2 ）ＣａＯ
系膨張材又はスラグを使用する必要がある。なお、Ｃａ
Ｏ系膨張材の発生応力は大きいため、ピストン１４の押
し出し力が大きいことから、設置スペースや設備の大き
さ（潤滑油の適性供給量）に合わせて、自在に膨張材容
器１８の形状及び容量を選択することができる。図に示
すように、膨張材収納容器本体３７の円筒部３８には、
円周方向に６等分（６０°）された位置でそれぞれ、軸
方向に所定のピッチを開けて、例えば直径６ｍｍの吸気
孔３８ａが３個、合計１８箇所形成されている。膨張材
収納容器本体３７は薄い鋼板で作製されている。Inside the expansive material container 18, there is disposed a cylindrical expansive material container main body 37 which is in contact with the ceiling portion 34 and has a ceiling portion 36. 17 are filled. As the expansive material 17, CaO having a large generated stress (100 to 300 kgf / cm 2 ) is used.
It is necessary to use a system expansion material or slag. Note that Ca
Since the generated stress of the O-based expander is large, the pushing force of the piston 14 is large. Therefore, the shape and capacity of the expander container 18 can be freely adjusted according to the installation space and the size of the equipment (appropriate supply amount of lubricating oil). Can be selected. As shown in the figure, in the cylindrical portion 38 of the expansive material container main body 37,
A total of 18 intake holes 38a each having a diameter of 6 mm, for example, are formed at predetermined positions in the axial direction at positions equally divided (60 °) in the circumferential direction. The expandable material container main body 37 is made of a thin steel plate.
【００１４】押し付け部材１６は、ピストン１４の曲面
部３１に中央部が当接する円板状の当接部３９と、当接
部３９の外周部に接続された円筒状の直胴部４０を備え
ている。直胴部４０は、潤滑油収納シリンダー１２の軸
心と一致しており、直胴部４０が膨張材収納容器本体３
７の円筒部３８に対して摺動可能となっている。即ち、
押し付け部材１６の直胴部４０の内周面と膨張材収納容
器本体３７の円筒部３８の外周面とは摺動する構造とな
っており、直胴部４０の内周面が摺動部を形成するよう
に構成されている。押し付け部材１６の摺動部の長さ
は、ピストン１４のストロークＳより２〜５０ｍｍの範
囲で長くなっている。押し付け部材１６も膨張材収納容
器本体３７と同様、薄い鋼板で作製されている。図１に
示す状態は、膨張材収納容器本体３７に膨張材１７を充
填した初期の時点を表しており、押し付け部材１６の当
接部３９の外周部の内面は、膨張材収納容器本体３７の
円筒部３８の先端面に接触している。また、ピストン１
４のストッパー部３０は、膨張材容器１８のフランジ部
３２の内面に当接した状態となっている。この状態で押
し付け部材１６の直胴部４０の先端（上側）に接触する
ように、位置決め用のＯリング４１が膨張材容器１８の
円筒部３３の内周面と膨張材収納容器本体３７の外周面
との間に装着されている。なお、膨張材１７の外側と膨
張材収納容器本体３７との間には、シート状の気液分離
濾過材（図示せず）が配置されている。この気液分離濾
過材は、厚さが１〜２ｍｍ程度であり、直径が２〜３μ
ｍ以下の微細な孔が蜂の巣状に無数につながった皮膜が
特殊コーティング加工されており、空気や水蒸気や熱は
この孔を通過して発散するが、雨水等の液体は通過でき
ない構造を有している。さらに、皮膜の外表面に特殊な
撥水加工を施した２段防水構造の撥水透湿素材では、雨
や水の侵入を強力に防止することができる。なお、この
材料の物性値として、耐水圧は０．５〜３ｋｇｆ／ｃｍ
2程度、また、透湿度は６０００（ｇ／ｍ2 ・２４ｈｒ
ｓ）である。The pressing member 16 is provided with a disc-shaped contact portion 39 whose center portion abuts the curved surface portion 31 of the piston 14, and a cylindrical straight body portion 40 connected to the outer peripheral portion of the contact portion 39. ing. The straight body portion 40 coincides with the axis of the lubricating oil storage cylinder 12, and the straight body portion 40 is formed by the expansion material storage container body 3
It is slidable with respect to the cylindrical portion 38 of No. 7. That is,
The inner peripheral surface of the straight body portion 40 of the pressing member 16 and the outer peripheral surface of the cylindrical portion 38 of the expansion material storage container main body 37 are configured to slide, and the inner peripheral surface of the straight body portion 40 serves as a sliding portion. Configured to form. The length of the sliding portion of the pressing member 16 is longer than the stroke S of the piston 14 in the range of 2 to 50 mm. The pressing member 16 is also made of a thin steel plate, like the expansion material container main body 37. The state shown in FIG. 1 represents an initial point of time when the expansive material storage container body 37 is filled with the expansive material 17, and the inner surface of the outer peripheral portion of the abutting portion 39 of the pressing member 16 is the same. It contacts the tip end surface of the cylindrical portion 38. Also, the piston 1
The stopper portion 30 of No. 4 is in contact with the inner surface of the flange portion 32 of the expansion material container 18. In this state, the positioning O-ring 41 is arranged so as to contact the tip (upper side) of the straight body portion 40 of the pressing member 16 and the inner peripheral surface of the cylindrical portion 33 of the expansive material container 18 and the outer periphery of the expansive material container main body 37. It is mounted between the face and. A sheet-shaped gas-liquid separation filtering material (not shown) is arranged between the outside of the expansion material 17 and the expansion material storage container body 37. This gas-liquid separation filtration material has a thickness of about 1 to 2 mm and a diameter of 2 to 3 μ.
A special coating is applied to the film in which numerous microscopic holes of m or less are connected like a honeycomb. Air, water vapor and heat radiate through these holes, but liquids such as rainwater cannot pass through. ing. Furthermore, the water-repellent and moisture-permeable material with a two-step waterproof structure in which the outer surface of the film is subjected to a special water-repellent treatment can strongly prevent rain and water from entering. The water pressure resistance of this material is 0.5 to 3 kgf / cm.
2 and the water vapor transmission rate is 6000 (g / m 2 · 24 hr
s).
【００１５】ここで、ピストン１４の面積Ｓｐは、押し
付け部材１６の押し付け面積Ｓｎの５倍に構成されてい
る。押し付け面積Ｓｎは、厳密に言えば、膨張材収納容
器本体３７の円筒部３８の内径に基づいて決定される膨
張材１７の断面積を意味している。従って、膨張材１７
の膨張容積１に対して、ピストン１４による移動容積は
５倍になり、この結果、膨張材１７の膨張容積を５倍増
幅してグリース１１を吐出させることができる。なお、
図１及び図２中符号４２は、両端部にボルト２３と同じ
雄ねじが形成され、かつ、ボルト２３の頭部に相当する
位置にも雄ねじが形成されたＵ字状の棒材からなる把手
を表しており、符号２４ａは把手４２のボルト２３の頭
部に相当する位置に形成された雄ねじに螺合するナット
を表している。従って、上述の６組のボルト２３等の他
に、把手４２の両端部の２組のナット２４、２４ａ等に
よって膨張材容器１８と潤滑油収納シリンダー１２とを
着脱可能に固定している。Here, the area Sp of the piston 14 is five times as large as the pressing area Sn of the pressing member 16. Strictly speaking, the pressing area Sn means the cross-sectional area of the expansive material 17, which is determined based on the inner diameter of the cylindrical portion 38 of the expansive material container main body 37. Therefore, the expansion material 17
The moving volume of the piston 14 is five times as large as the expanding volume 1 of 1. As a result, the expanding volume of the expanding material 17 can be amplified by 5 times and the grease 11 can be discharged. In addition,
Reference numeral 42 in FIGS. 1 and 2 indicates a handle made of a U-shaped bar member in which both ends are formed with the same male screw as the bolt 23 and the male screw is also formed at a position corresponding to the head of the bolt 23. The reference numeral 24a represents a nut that is screwed into a male screw formed at a position corresponding to the head of the bolt 23 of the handle 42. Therefore, in addition to the above-described six sets of bolts 23 and the like, the expander container 18 and the lubricating oil storage cylinder 12 are detachably fixed by the two sets of nuts 24 and 24a at both ends of the handle 42.
【００１６】次いで、本発明の一実施の形態に係る潤滑
油自動供給装置１０を使用して、機械の軸受部に長期に
渡ってグリース１１を定量的に自動供給する作用につい
て、図１、図２を参照しながら説明する。
（１）把手４２をフランジ部２２、３２から取り外し、
吐出口１９を機械の軸受部に、図示しないグリース配管
用継手を介して直接、接続する。
（２）膨張材１７は、膨張材容器１８に形成された２箇
所の吸気孔３５及び膨張材収納容器本体３７に形成され
た１８箇所の吸気孔３８ａを介して周囲の空気中の水分
を吸収しながら徐々に膨張する。Next, the operation of automatically supplying the grease 11 quantitatively to the bearing portion of the machine for a long period using the automatic lubricating oil supply device 10 according to the embodiment of the present invention will be described with reference to FIGS. This will be described with reference to 2. (1) Remove the handle 42 from the flange portions 22 and 32,
The discharge port 19 is directly connected to the bearing of the machine via a grease pipe joint (not shown). (2) The expansive material 17 absorbs moisture in the surrounding air through the two intake holes 35 formed in the expansive material container 18 and the 18 intake holes 38a formed in the expansive material container main body 37. While gradually expanding.
【００１７】（３）膨張材１７の膨張によって、押し付
け部材１６が膨張材収納容器本体３７を摺動しながら、
当接部３９がピストン１４を押圧して、膨張材１７の実
質膨張容積１に対して、ピストン１４を潤滑油収納シリ
ンダー１２内で５倍の容積分移動させる。
（４）ピストン１４の移動に伴って、潤滑油収納シリン
ダー１２内に充填されているグリース１１は吐出口１９
を経由して機械類の軸受部に給脂される。
（５）従って、上記（２）〜（４）を長期（約１〜３年
間）に渡り継続することにより定量的にグリース１１を
自動供給することができる。(3) As the expansion member 17 expands, the pressing member 16 slides on the expansion member storage container body 37,
The contact portion 39 presses the piston 14 to move the piston 14 in the lubricating oil storage cylinder 12 by a volume five times as large as the substantial expansion volume 1 of the expansion material 17. (4) With the movement of the piston 14, the grease 11 filled in the lubricating oil storage cylinder 12 is discharged from the discharge port 19
Lubricates to the bearings of machinery via. (5) Therefore, the grease 11 can be automatically supplied quantitatively by continuing the above (2) to (4) for a long period (about 1 to 3 years).
【００１８】前記実施の形態においては、押し付け部材
１６の当接部３９の中央平面部がピストン１４の曲面部
３１と当接する構造とすることによって、押し付け部材
１６からピストン１４への偏心荷重の伝達を防止してい
るが、これに限定されず、逆に、ピストン側を平面と
し、一方、押し付け部材側の中心部に突出部（曲面部）
を形成することもできる。また、押し付け部材１６の当
接部３９の中央部ではなく、当接部３９の周辺部にリン
グ状の突起部を設けて、ピストン１４側の対応するリン
グ状の平面部を押圧する構造とすることもできる。グリ
ース１１は、潤滑油収納シリンダー１２内に充填される
ように構成したが、これに限定されず、ピストン１４と
潤滑油収納シリンダー１２の底部２０との間に設けら
れ、軸方向に伸縮可能で、その排出口が吐出口１９に連
通する密閉式の収納袋に充填されるように構成すること
もできる。これによって、硬質合成樹脂からなる潤滑油
収納シリンダー１２及びピストン１４が、例えば、熱変
形や経年劣化等に起因する塑性変形が生じた場合でも、
また、摺動部の製作精度が悪い場合でも、安定してグリ
ース１１を供給することができる。In the above-described embodiment, the center plane portion of the contact portion 39 of the pressing member 16 is in contact with the curved surface portion 31 of the piston 14, so that the eccentric load is transmitted from the pressing member 16 to the piston 14. However, the present invention is not limited to this, and conversely, the piston side is a flat surface, while the protrusion (curved surface) is formed at the center of the pressing member side.
Can also be formed. In addition, a ring-shaped protrusion is provided not on the center of the contact portion 39 of the pressing member 16 but on the peripheral portion of the contact portion 39 to press the corresponding ring-shaped flat portion on the piston 14 side. You can also Although the grease 11 is configured to be filled in the lubricating oil storage cylinder 12, the grease 11 is not limited to this and is provided between the piston 14 and the bottom portion 20 of the lubricating oil storage cylinder 12 and is expandable and contractable in the axial direction. Alternatively, the discharge port may be filled in a hermetically sealed storage bag that communicates with the discharge port 19. As a result, even if the lubricating oil storage cylinder 12 and the piston 14 made of hard synthetic resin undergo plastic deformation due to thermal deformation or deterioration over time, for example,
Further, the grease 11 can be stably supplied even if the manufacturing accuracy of the sliding portion is poor.
【００１９】不良部品の交換、膨張材１７の条件と給脂
量との関係、及び取付け作業等を考慮して、潤滑油収納
シリンダー１２と膨張材容器１８とはフランジ接続によ
り着脱可能に固定される構造としたが、これに限定され
ず、一体構造にすることもできる。潤滑油収納シリンダ
ー１２、ピストン１４、膨張材容器１８すべての断面形
状は円形としたが、これに限定されず、必要に応じて、
角形又は楕円形とすることもできる。これによって、設
置スペースに応じた、しかもコンパクトな装置とするこ
ともできる。ピストン１４の面積Ｓｐは、押し付け部材
１６の実質押し付け面積Ｓｎの５倍としたが、これに限
定されず、状況に応じて、１．１倍以上とすることもで
きる。１．１倍以上とした理由は、１．１倍未満では、
膨張容積の増幅効果が小さいので、メリットが無いため
である。In consideration of the replacement of defective parts, the relationship between the condition of the expansive material 17 and the greasing amount, and the mounting work, the lubricating oil storage cylinder 12 and the expansive material container 18 are detachably fixed by flange connection. However, the structure is not limited to this, and an integrated structure may be used. Although the cross-sectional shape of all of the lubricating oil storage cylinder 12, the piston 14, and the expansive material container 18 is circular, the present invention is not limited to this, and if necessary,
It can also be rectangular or elliptical. As a result, it is possible to make a compact device suitable for the installation space. The area Sp of the piston 14 is set to 5 times the substantial pressing area Sn of the pressing member 16, but the area is not limited to this and may be 1.1 times or more depending on the situation. The reason for setting 1.1 times or more is that less than 1.1 times,
This is because there is no merit because the expansion volume amplification effect is small.
【００２０】[0020]
【発明の効果】請求項１〜７記載の潤滑油自動供給装置
においては、ピストンを介して膨張材の膨張容積を効果
的に増幅して、より多くの潤滑油を徐々に吐出すること
ができるので、多くの潤滑油を長期間に渡って安定して
供給でき、かつコンパクトであり、軽量で安価な装置と
することができる。特に、請求項２記載の潤滑油自動供
給装置においては、押し付け部材からの膨張力をピスト
ンの中心部に伝達でき、潤滑油収納シリンダーに対する
ピストンのせり合いを防止することができるので、潤滑
油を安定して供給することができる。請求項３記載の潤
滑油自動供給装置においては、潤滑油収納シリンダーに
おいて、例えば、熱変形、経年変化等による塑性変形が
生じた場合でも、安定して潤滑油の供給ができるので、
安全性が向上する。In the automatic lubricating oil supply device according to the present invention, it is possible to effectively amplify the expansion volume of the expanding material through the piston and gradually discharge more lubricating oil. Therefore, a large amount of lubricating oil can be stably supplied over a long period of time, and the device is compact, lightweight, and inexpensive. Particularly, in the automatic lubricating oil supply device according to the second aspect, the expansion force from the pressing member can be transmitted to the central portion of the piston, and the piston can be prevented from engaging with the lubricating oil storage cylinder. It can be stably supplied. In the lubricating oil automatic supply device according to claim 3, the lubricating oil can be stably supplied even when plastic deformation due to thermal deformation, aging, or the like occurs in the lubricating oil storage cylinder.
Safety is improved.
【００２１】請求項４記載の潤滑油自動供給装置におい
ては、膨張材や不良部の部品のみの交換が容易にできる
ので、交換作業が簡単であると同時に、ランニングコス
トが安くて済む。請求項５記載の潤滑油自動供給装置に
おいては、製作が簡単になり、コンパクトな装置にでき
るので、安価で、かつ、設置のスペースが小さくて済
む。請求項６記載の潤滑油自動供給装置においては、ピ
ストンの剛性を大きくでき、変形等を抑制することがで
きるので、安定して潤滑油の供給ができ、安全性が向上
する。請求項７記載の潤滑油自動供給装置においては、
ピストンは潤滑油収納シリンダーの軸心と一致して摺動
するので、潤滑油の供給が安定しており、この結果、安
全性が高い。In the automatic lubricating oil supply device according to the fourth aspect of the present invention, only the expansive material and the defective part can be replaced easily, so that the replacement work is simple and the running cost is low. In the automatic lubricating oil supply device according to the fifth aspect of the present invention, the manufacturing is simplified and the device can be made compact, so that it is inexpensive and the installation space is small. In the automatic lubricating oil supply device according to the sixth aspect, the rigidity of the piston can be increased and deformation or the like can be suppressed, so that the lubricating oil can be stably supplied and safety is improved. In the automatic lubricating oil supply device according to claim 7,
Since the piston slides in line with the axis of the lubricating oil storage cylinder, the supply of lubricating oil is stable, and as a result, safety is high.
【図１】本発明の一実施の形態に係る潤滑油自動供給装
置の正断面図である。FIG. 1 is a front sectional view of an automatic lubricating oil supply device according to an embodiment of the present invention.
【図２】上半分が同潤滑油自動供給装置の一部平断面図
で、下半分が同一部底面図である。FIG. 2 is a partial plan sectional view of the same automatic lubricating oil supply device in the upper half, and a bottom view of the same portion in the lower half.
【図３】従来例に係る潤滑油自動供給装置の正断面図で
ある。FIG. 3 is a front sectional view of a lubricating oil automatic supply device according to a conventional example.
１０：潤滑油自動供給装置、１１：グリース（潤滑
油）、１２：潤滑油収納シリンダー、１３：一方面、１
４：ピストン、１５：他方面、１６：押し付け部材、１
７：膨張材、１８：膨張材容器、１９：吐出口、２０：
底部、２１：シリンダー部、２２：フランジ部、２３：
ボルト、２４、２４ａ：ナット、２５：座金、２５ａ：
座ぐり、２６：座金、２７、２８：溝、２９：Ｏリン
グ、３０：ストッパー部、３１：曲面部（突出部）、３
２：フランジ部、３３：円筒部、３４：天井部、３５：
吸気孔、３６：天井部、３７：膨張材収納容器本体、３
８：円筒部、３８ａ：吸気孔、３９：当接部、４０：直
胴部、４１：Ｏリング、４２：把手10: automatic lubricating oil supply device, 11: grease (lubricating oil), 12: lubricating oil storage cylinder, 13: one side, 1
4: piston, 15: other surface, 16: pressing member, 1
7: expansive material, 18: expansive material container, 19: discharge port, 20:
Bottom part, 21: cylinder part, 22: flange part, 23:
Bolt, 24, 24a: Nut, 25: Washer, 25a:
Counterbore, 26: washer, 27, 28: groove, 29: O-ring, 30: stopper part, 31: curved surface part (protruding part), 3
2: flange part, 33: cylindrical part, 34: ceiling part, 35:
Intake hole, 36: Ceiling part, 37: Intumescent material storage container body, 3
8: Cylindrical part, 38a: Intake hole, 39: Contact part, 40: Straight body part, 41: O-ring, 42: Handle
フロントページの続き (72)発明者 青柳 健児 福岡県北九州市八幡東区大谷１丁目３番１ 号 株式会社アステック入江内 (72)発明者 種生 昭春 福岡県北九州市八幡東区大谷１丁目３番１ 号 株式会社アステック入江内Continued front page (72) Inventor Kenji Aoyagi 1-3 Otani, Yawatahigashi-ku, Kitakyushu City, Fukuoka Prefecture Issue Astec Inc. Irie (72) Inventor Akiharu Seed 1-3 Otani, Yawatahigashi-ku, Kitakyushu City, Fukuoka Prefecture Issue Astec Inc. Irie
Claims (7)
部に供給される潤滑油が収納された有底の潤滑油収納シ
リンダーと、前記潤滑油収納シリンダーに摺動自在に配
置され、一方面側が前記潤滑油に接するピストンと、前
記ピストンの他方面側に直接押圧する押し付け部材を摺
動移動可能に有し、内部には空気中の水分を吸収して徐
々に膨張する膨張材が収納され、前記膨張材の膨張によ
って前記押し付け部材が外側に移動し、前記潤滑油収納
シリンダーに直列に固定された膨張材容器とを有し、前
記ピストンの面積は、前記押し付け部材の実質押し付け
面積の１．１倍以上あって、前記膨張材の膨張容積を増
幅して前記潤滑油を吐出させることを特徴とする潤滑油
自動供給装置。1. A bottomed lubricating oil storage cylinder, which has a discharge port at the bottom and stores lubricating oil to be supplied to a bearing portion of a machine, and slidably disposed on the lubricating oil storage cylinder, A piston whose one surface is in contact with the lubricating oil and a pressing member that directly presses against the other surface of the piston are slidably movable, and an expander that absorbs moisture in the air and expands gradually is provided inside. The expansion member is housed, the pressing member moves outward by expansion of the expansion material, and the expansion oil container is fixed in series to the lubricating oil storage cylinder, and the area of the piston is substantially the pressing area of the pressing member. 1.1 times or more of the above, and the lubricating oil is discharged by amplifying the expansion volume of the expansion material and discharging the lubricating oil.
いて、前記ピストンと前記押し付け部材との当接構造
は、該ピストン又は該押し付け部材の中心部に突出部が
あって、前記ピストンへの偏心荷重の伝達を防止してい
ることを特徴とする潤滑油自動供給装置。2. The automatic lubricating oil supply device according to claim 1, wherein the contact structure between the piston and the pressing member has a protrusion at the center of the piston or the pressing member, An automatic lubricating oil supply device characterized by preventing transmission of an eccentric load.
置において、前記潤滑油は、前記ピストンと前記潤滑油
収納シリンダーの底部との間に設けられ、軸方向に伸縮
可能で、排出口が前記吐出口に連通する密閉式の収納袋
に充填されていることを特徴とする潤滑油自動供給装
置。3. The automatic lubricating oil supply device according to claim 1, wherein the lubricating oil is provided between the piston and a bottom portion of the lubricating oil storage cylinder, is axially expandable and contractable, and has a discharge port. Is filled in a hermetically-sealed storage bag that communicates with the discharge port.
滑油自動供給装置において、前記潤滑油収納シリンダー
と前記膨張材容器とは着脱可能に固定されていることを
特徴とする潤滑油自動供給装置。4. The automatic lubrication oil supply device according to claim 1, wherein the lubrication oil storage cylinder and the expansion material container are detachably fixed to each other. Oil automatic supply device.
滑油自動供給装置において、前記ピストンの断面形状は
円形であることを特徴とする潤滑油自動供給装置。5. The automatic lubricating oil supply device according to claim 1, wherein the piston has a circular cross-sectional shape.
滑油自動供給装置において、前記潤滑油収納シリンダー
及び前記ピストンは硬質合成樹脂からなって、前記ピス
トンの板厚を１０ｍｍ以上とすることを特徴とする潤滑
油自動供給装置。6. The lubricating oil automatic feeder according to claim 1, wherein the lubricating oil storage cylinder and the piston are made of hard synthetic resin, and the plate thickness of the piston is 10 mm or more. An automatic lubricating oil supply device characterized by:
滑油自動供給装置において、前記膨張材容器は、前記押
し付け部材が前記潤滑油収納シリンダーの軸心と一致す
る直胴部を有し、前記押し付け部材は前記直胴部が摺動
可能となって、しかも、前記押し付け部材の摺動部の長
さは、前記ピストンのストロークより２〜５０ｍｍの範
囲で長くなっていることを特徴とする潤滑油自動供給装
置。7. The automatic lubricating oil feeder according to any one of claims 1 to 6, wherein the expansion material container has a straight body portion in which the pressing member is aligned with an axis of the lubricating oil storage cylinder. The pressing member is configured such that the straight body portion is slidable, and the length of the sliding portion of the pressing member is longer than the stroke of the piston in the range of 2 to 50 mm. Characteristic automatic lubricating oil supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001275122A JP3730149B2 (en) | 2001-09-11 | 2001-09-11 | Lubricating oil automatic supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001275122A JP3730149B2 (en) | 2001-09-11 | 2001-09-11 | Lubricating oil automatic supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003083497A true JP2003083497A (en) | 2003-03-19 |
| JP3730149B2 JP3730149B2 (en) | 2005-12-21 |
Family
ID=19100042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001275122A Expired - Fee Related JP3730149B2 (en) | 2001-09-11 | 2001-09-11 | Lubricating oil automatic supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3730149B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454900A (en) * | 2014-12-10 | 2015-03-25 | 苏州市顺仪五金有限公司 | Nut capable of achieving automatic oil outlet function by absorbing light energy |
| CN104454898A (en) * | 2014-12-10 | 2015-03-25 | 苏州市顺仪五金有限公司 | Nut capable of achieving automatic oil outlet and return functions by absorbing light energy |
-
2001
- 2001-09-11 JP JP2001275122A patent/JP3730149B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454900A (en) * | 2014-12-10 | 2015-03-25 | 苏州市顺仪五金有限公司 | Nut capable of achieving automatic oil outlet function by absorbing light energy |
| CN104454898A (en) * | 2014-12-10 | 2015-03-25 | 苏州市顺仪五金有限公司 | Nut capable of achieving automatic oil outlet and return functions by absorbing light energy |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3730149B2 (en) | 2005-12-21 |
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