JPS6242145Y2 - - Google Patents
Info
- Publication number
- JPS6242145Y2 JPS6242145Y2 JP1982049772U JP4977282U JPS6242145Y2 JP S6242145 Y2 JPS6242145 Y2 JP S6242145Y2 JP 1982049772 U JP1982049772 U JP 1982049772U JP 4977282 U JP4977282 U JP 4977282U JP S6242145 Y2 JPS6242145 Y2 JP S6242145Y2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- bearing
- pump
- seal member
- sealing ring
- 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.)
- Expired
Links
- 239000010687 lubricating oil Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 229910001347 Stellite Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Description
【考案の詳細な説明】 本考案はギヤポンプの改良に関する。[Detailed explanation of the idea] The present invention relates to improvements in gear pumps.
ギヤポンプによつて溶融状態の熱硬化性樹脂を
圧輸送する場合、前記被輸送樹脂が軸受と軸との
摺接間隙に進入し、該樹脂は潤滑性を有しない場
合は勿論、潤滑性樹脂の場合でも摺動摩擦熱によ
り変質するため自己潤滑させることには問題があ
つた。そのため、含油軸受などを使用した潤滑方
法もあるが、耐蝕性が劣るため寿命が短縮される
欠点があつた。それ故、従来、このような液体の
輸送には大型でかつ構造複雑な外部軸受方式のギ
ヤポンプを用いざるを得なかつた。 When a molten thermosetting resin is transported under pressure by a gear pump, the resin to be transported enters the sliding gap between the bearing and the shaft. Even in this case, there was a problem in self-lubricating because the quality deteriorated due to the frictional heat of sliding. For this reason, there are lubrication methods that use oil-impregnated bearings, but these have the disadvantage of shortening their lifespans due to poor corrosion resistance. Therefore, conventionally, it has been necessary to use an external bearing type gear pump, which is large and has a complicated structure, to transport such liquid.
本考案は上記問題点を解決し、軸受部に取扱い
原液が浸入するのを阻止し、別の潤滑油を用いて
潤滑可能としたギヤポンプを提供することを目的
とする。 It is an object of the present invention to solve the above-mentioned problems and provide a gear pump which prevents the handling liquid from entering the bearing part and which can be lubricated using a separate lubricating oil.
以下本考案の一実施例を図面にもとずいて説明
する。 An embodiment of the present invention will be described below based on the drawings.
第１図、第２図において、ギヤポンプは筒状ケ
ーシング１の両端がカバー２，３で覆われ、該ケ
ーシング１の内側に軸受５，５を介して２本の平
行なポンプ軸４が回転自在に支持され、これらポ
ンプ軸４に１対の噛合うギヤ６，６が固定される
ものである。前カバー２および後カバー３には
夫々潤滑油としてグリス問うの供給孔２ａ，３ａ
と、それに続く潤滑油路として溝２ｂ，３ｂが設
けられ、軸受５のポンプ軸４との摺動面には軸方
向潤滑油路５ｍが設けられる。 In FIGS. 1 and 2, the gear pump has a cylindrical casing 1 whose both ends are covered with covers 2 and 3, and two parallel pump shafts 4 that are rotatable inside the casing 1 via bearings 5 and 5. A pair of meshing gears 6, 6 are fixed to these pump shafts 4. The front cover 2 and the rear cover 3 have supply holes 2a and 3a for lubricating oil, respectively.
Grooves 2b and 3b are provided as lubricating oil passages following the grooves 2b and 3b, and an axial lubricating oil passage 5m is provided on the sliding surface of the bearing 5 with respect to the pump shaft 4.
前記各軸受５には前記ギヤ６と対向する側面の
ポンプ軸４に近接する部分にシール部材収納溝
５′が設けられ、それに円環状の軸受側シール部
材８が固着されている。軸受側シール部材８は、
第２図に示されるように外円周面にＯリング８ｂ
が装着されて取扱い液体の進入が阻止されたシー
ルリング８ａと、該シールリング８ａの反ギヤ側
に固定されて溝５′の底に進退自在に投入した滑
り止めピン８ｃとからなる。前記Ｏリング８ｂは
軸受５のシール部材収納溝５′の半径方向外壁面
と前記シールリング８ａとの間をシールする。前
記滑り止めピン８ｃはシールリング８ａの円周方
向に沿い複数固設けられ、シールリング８ａがシ
ール部材収納溝５′内で円周方向に摺動するのを
阻止する。またシール部材収納溝５′には反ギヤ
側にピン８ｃに嵌挿されてコイルばね部材８ｄが
装着され、夫々のシールリング８ａはギヤ側シー
ルリング９ａに対して押圧付勢される。更にギヤ
６の前記軸受側シール部材８と対向する部分には
ギヤ側シール部材収納溝６′が設けられ、該溝に
は前記と同様にしてＯリング９ｂにより液密とさ
れるとともに滑り止めピン９ｃによつて空転防止
されたシールリング９ａを有するギヤ側シール部
材９が収納される。 A seal member storage groove 5' is provided in each of the bearings 5 at a portion close to the pump shaft 4 on the side surface facing the gear 6, and an annular bearing-side seal member 8 is fixed thereto. The bearing side seal member 8 is
As shown in Fig. 2, an O-ring 8b is attached to the outer circumferential surface.
It consists of a seal ring 8a which is fitted with a seal ring 8a to prevent the handling liquid from entering, and a non-slip pin 8c which is fixed to the side opposite to the gear of the seal ring 8a and is movably inserted into the bottom of the groove 5'. The O-ring 8b seals between the radially outer wall surface of the seal member storage groove 5' of the bearing 5 and the seal ring 8a. A plurality of the anti-slip pins 8c are fixedly provided along the circumferential direction of the seal ring 8a, and prevent the seal ring 8a from sliding in the circumferential direction within the seal member storage groove 5'. Further, a coil spring member 8d is attached to the seal member storage groove 5' on the anti-gear side by being fitted with a pin 8c, and each seal ring 8a is biased against the gear side seal ring 9a. Furthermore, a gear-side seal member storage groove 6' is provided in a portion of the gear 6 facing the bearing-side seal member 8, and the groove is made liquid-tight by an O-ring 9b in the same manner as described above, and is fitted with a non-slip pin. A gear side seal member 9 having a seal ring 9a which is prevented from idling by 9c is housed.
このようにして両シール部材８，９は互いの対
向面において摺動可能に密接し、ギヤ６と軸受５
との対向面間隙を通つて軸４への取扱い液体の流
通を阻止している。軸受側シール部材８は工具鋼
などの焼入鋼または砲金等が用いられる。ギヤ側
シール部材９はステライトなどが用いられる。こ
れら、両シール部材８，９は良好なシール状態を
得るように互いに馴染性を有し、かつ、被輸送流
体に対し耐蝕性に富む。そして、両シール部材の
摺動部分は高熱を発することがなく、被輸送樹脂
の変質が防止される。そして、前記両シール部材
８，９はそれらの溝５′，６′内を進退自在とさ
れ、かつ、ばね部材８ｄが介在されているので、
それらの対向面が軸受側面およびギヤ側面より僅
かに突出状態で常に互いに圧接し、両シール部材
８，９間において液密とされている。図中７はパ
ツキングである。 In this way, both the seal members 8 and 9 are slidably in close contact with each other on the opposing surfaces, and the gear 6 and the bearing 5
The handling liquid is prevented from flowing to the shaft 4 through the gap between the opposing surfaces. The bearing side seal member 8 is made of hardened steel such as tool steel, gun metal, or the like. The gear side seal member 9 is made of stellite or the like. These seal members 8 and 9 have compatibility with each other so as to obtain a good sealing state, and are highly corrosion resistant to the fluid to be transported. The sliding portions of both seal members do not generate high heat, and the resin to be transported is prevented from deteriorating in quality. Since both the seal members 8 and 9 are movable back and forth within their grooves 5' and 6', and the spring member 8d is interposed,
Their facing surfaces are always in pressure contact with each other in a state of slightly protruding from the bearing side surface and the gear side surface, so that the space between both seal members 8 and 9 is liquid-tight. 7 in the figure is packing.
なお、シール部材はギヤ６と軸受５との対向面
のいずれか一方のみに設けられてもよい。 Note that the sealing member may be provided only on either one of the facing surfaces of the gear 6 and the bearing 5.
また、ばね部材８ｄはギヤ側に、またはギヤ側
と軸受側の両方に設けられてもよい。 Moreover, the spring member 8d may be provided on the gear side, or on both the gear side and the bearing side.
シール部材のギヤ側と軸受側の摺動面の硬さは
異なつており、これによつて摺動摩擦熱による焼
付現象が防止される。更に仮想線示の如く、軸に
軸方向潤滑油路４ａが設けられてもよい。 The hardness of the sliding surfaces on the gear side and the bearing side of the seal member is different, thereby preventing seizure caused by sliding frictional heat. Furthermore, as shown in the phantom line, an axial lubricating oil passage 4a may be provided on the shaft.
本考案のギヤポンプは以上の如く構成されるの
で、ポンプ自体が小型で機構も簡単になり、取扱
い液体が変質する心配がなくなるとともに、潤滑
が円滑に行なわれるため、ポンプが焼付きを生ず
ることもなくなり耐久性も向上した。 Since the gear pump of the present invention is constructed as described above, the pump itself is small and has a simple mechanism, and there is no need to worry about deterioration of the handled liquid, and smooth lubrication prevents the pump from seizing. The durability has also improved.
第１図は本考案の一実施例を示す縦断面図、第
２図は要部拡大断面図である。
１……ケーシング、２……前カバー、３……後
カバー、４……ポンプ軸、５……軸受、６……ギ
ヤ、５′，６′……シール部材収納溝、８……軸受
側シール部材、９……ギヤ側シール部材、８ａ…
…シールリング、８ｃ……滑り止めピン、８ｄ…
…ばね部材。
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of the main parts. 1... Casing, 2... Front cover, 3... Rear cover, 4... Pump shaft, 5... Bearing, 6... Gear, 5', 6'... Seal member storage groove, 8... Bearing side Seal member, 9...Gear side seal member, 8a...
...Seal ring, 8c...Non-slip pin, 8d...
...Spring member.
Claims (1)
ーシングの内側に軸受を介して２本の平行なポン
プ軸が回転自在に支持され、これらポンプ軸に１
対の噛合うギヤが固定されたギヤポンプにおい
て、前記ギヤと軸受との対向面の少なくともいず
れか一方の前記ポンプ軸に近接する部分にシール
部材収納溝が設けられ、該シール部材収納溝に
は、Ｏリングを介して取扱い液体の進入を阻止す
るシール円環と、該シール円環の回り止め部材
と、該シール円環を前記対向面へ押圧するばね部
材とからなるシール部材が収容され、前記ケーシ
ングの外側から前記軸受の軸との摺動面に潤滑油
を導く軸方向潤滑油路が設けられたことを特徴と
するギヤポンプ。 Both ends of the cylindrical casing are covered with covers, and two parallel pump shafts are rotatably supported inside the casing via bearings.
In a gear pump in which a pair of meshing gears are fixed, a seal member storage groove is provided in a portion of at least one of the facing surfaces of the gear and the bearing that is close to the pump shaft, and the seal member storage groove includes: A sealing member consisting of a sealing ring for preventing the handling liquid from entering through an O-ring, a rotation preventing member for the sealing ring, and a spring member for pressing the sealing ring against the opposing surface is housed, A gear pump characterized in that an axial lubricating oil passage is provided for guiding lubricating oil from the outside of the casing to the sliding surface of the bearing shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4977282U JPS58151386U (en) | 1982-04-05 | 1982-04-05 | gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4977282U JPS58151386U (en) | 1982-04-05 | 1982-04-05 | gear pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58151386U JPS58151386U (en) | 1983-10-11 |
| JPS6242145Y2 true JPS6242145Y2 (en) | 1987-10-28 |
Family
ID=30060608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4977282U Granted JPS58151386U (en) | 1982-04-05 | 1982-04-05 | gear pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58151386U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643828Y2 (en) * | 1984-11-07 | 1989-02-01 | ||
| JP2568688Y2 (en) * | 1991-09-03 | 1998-04-15 | 株式会社島津製作所 | Gear pump |
| WO2020241035A1 (en) * | 2019-05-30 | 2020-12-03 | 株式会社Ihi | External gear pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56105692U (en) * | 1980-01-16 | 1981-08-18 |
-
1982
- 1982-04-05 JP JP4977282U patent/JPS58151386U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58151386U (en) | 1983-10-11 |
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