JP2013194769A - Sliding bearing device - Google Patents
Sliding bearing device Download PDFInfo
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- JP2013194769A JP2013194769A JP2012059996A JP2012059996A JP2013194769A JP 2013194769 A JP2013194769 A JP 2013194769A JP 2012059996 A JP2012059996 A JP 2012059996A JP 2012059996 A JP2012059996 A JP 2012059996A JP 2013194769 A JP2013194769 A JP 2013194769A
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- bearing device
- bearing
- sliding
- sliding surface
- atmosphere
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- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 21
- 239000004917 carbon fiber Substances 0.000 claims abstract description 21
- 125000003118 aryl group Chemical group 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 32
- 229920001643 poly(ether ketone) Polymers 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 19
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- -1 cemented carbide Substances 0.000 claims description 4
- 229920001652 poly(etherketoneketone) Polymers 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000011195 cermet Substances 0.000 claims description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims 1
- 229920001657 poly(etheretherketoneketone) Polymers 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 abstract description 2
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 16
- 239000011347 resin Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
本発明は、樹脂材料を用いたすべり軸受装置に係り、特にポンプ等の回転機械のラジアル軸受として好適に使用されるすべり軸受装置に関する。 The present invention relates to a sliding bearing device using a resin material, and more particularly to a sliding bearing device suitably used as a radial bearing of a rotary machine such as a pump.
樹脂材料を用いたすべり軸受装置は、樹脂の有する良好な潤滑性能のため、ターボ機械等の回転機械や事務機械に広く使用されている。樹脂材料を用いたすべり軸受装置を土砂等の異物が混入した水を取扱うためのポンプ等に使用する場合には、異物混入水が軸受すべり面に侵入してくることがあるが、土砂の主成分であるＳｉＯ２は樹脂材料と比較して硬度が高いため、樹脂材料が摩耗する。従って、異物混入水中運転では樹脂製のすべり軸受装置の摩耗量は増大し軸受寿命が短くなるという問題がある。また、立形ポンプ等においては、すべり軸受装置は、軸受すべり面が水中で運転される場合ばかりでなく、先行待機運転のように大気中で運転される場合がある。このようにすべり軸受装置の軸受すべり面が大気中に露出するドライ条件で運転される場合には、ドライ条件で低摩擦な軸受装置が求められている。 A plain bearing device using a resin material is widely used in rotating machines such as turbo machines and office machines because of the good lubrication performance of the resin. When a sliding bearing device using a resin material is used for a pump for handling water contaminated with foreign matter such as earth and sand, foreign matter mixed water may enter the bearing sliding surface. Since the component SiO 2 has higher hardness than the resin material, the resin material is worn. Accordingly, there is a problem in that the amount of wear of the resin-made sliding bearing device is increased and the bearing life is shortened in the operation in which foreign matter is mixed. Further, in a vertical pump or the like, the slide bearing device may be operated not only in the case where the bearing sliding surface is operated in water but also in the atmosphere as in the preceding standby operation. Thus, when it is operated under dry conditions in which the bearing sliding surface of the slide bearing device is exposed to the atmosphere, a bearing device having low friction under dry conditions is required.
本発明は、上述の事情に鑑みなされたもので、軸受すべり面が大気中に露出するドライ条件で低摩擦な軸受すべり面を有したすべり軸受装置を提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sliding bearing device having a bearing sliding surface having low friction under dry conditions in which the bearing sliding surface is exposed to the atmosphere.
上述の目的を達成するため、本発明のすべり軸受装置は、回転機械に使用され、軸受すべり面が大気中に露出するドライ条件で使われるすべり軸受装置であって、軸受部分はフッ素樹脂、芳香族ポリエーテルケトン、炭素繊維および不可避不純物の複合材料により形成されていることを特徴とする。
本発明によれば、軸受すべり面が大気中に露出するドライ条件で使われる場合、フッ素樹脂、カーボン繊維による低摩擦を確保でき、芳香族ポリエーテルケトン、カーボン繊維による耐摩耗性を確保することができる。
In order to achieve the above-described object, the sliding bearing device of the present invention is a sliding bearing device that is used in a rotating machine and is used in a dry condition in which the bearing sliding surface is exposed to the atmosphere. It is characterized by being formed of a composite material of a group polyetherketone, carbon fiber and inevitable impurities.
According to the present invention, when used under dry conditions where the bearing sliding surface is exposed to the atmosphere, low friction due to fluororesin and carbon fiber can be secured, and wear resistance due to aromatic polyetherketone and carbon fiber can be secured. Can do.
本発明の好ましい態様によれば、前記フッ素樹脂は、ＰＴＦＥ、ＰＦＡおよびＦＥＰの少なくとも１つであることを特徴とする。
本発明の好ましい態様によれば、前記芳香族ポリエーテルケトンは、ＰＥＫ、ＰＥＥＫ、ＰＥＫＫおよびＰＥＥＫＫの少なくとも１つであることを特徴とする。
本発明の好ましい態様によれば、前記炭素繊維は、直径が５〜７μｍ、長さが５〜１０００μｍであることを特徴とする。
According to a preferred aspect of the present invention, the fluororesin is at least one of PTFE, PFA, and FEP.
According to a preferred aspect of the present invention, the aromatic polyether ketone is at least one of PEK, PEEK, PEKK and PEEKK.
According to a preferred aspect of the present invention, the carbon fiber has a diameter of 5 to 7 μm and a length of 5 to 1000 μm.
本発明の好ましい態様によれば、前記軸受すべり面における各材料の面積率は、フッ素樹脂が２４〜３７％、芳香族ポリエーテルケトンが６０〜７１％、炭素繊維が３〜６％であることを特徴とする。
本発明によれば、これまで樹脂材料では実現できなかった(1)ドライ運転での低摩擦、耐摩耗性を確保することができ、(2)異物混入水中運転での耐スラリー摩耗を確保することができる。
According to a preferred aspect of the present invention, the area ratio of each material on the bearing sliding surface is 24 to 37% for fluororesin, 60 to 71% for aromatic polyether ketone, and 3 to 6% for carbon fiber. It is characterized by.
According to the present invention, (1) low friction and wear resistance in dry operation that could not be realized with resin materials until now can be ensured, and (2) slurry wear resistance in foreign matter-mixed underwater operation can be ensured. be able to.
本発明の好ましい態様によれば、前記軸受すべり面に対して摺動する軸スリーブの摺動面は、ビッカース硬さ（Ｈｖ）が２００以上であり、セラミックス、超硬合金、サーメットのいずれかで構成されることを特徴とする。 According to a preferred aspect of the present invention, the sliding surface of the shaft sleeve that slides with respect to the bearing sliding surface has a Vickers hardness (Hv) of 200 or more, and is made of any one of ceramics, cemented carbide, and cermet. It is characterized by being configured.
本発明の好ましい態様によれば、前記軸受すべり面が異物を混入した水中の条件で使われることを特徴とする。
本発明によれば、軸受すべり面が異物を混入した水中の条件で使われる場合、フッ素樹脂、芳香族ポリエーテルケトンを複合することにより軸受材料自体の耐摩耗性に優れている。
According to a preferred aspect of the present invention, the bearing sliding surface is used under water conditions in which foreign matter is mixed.
According to the present invention, when the bearing sliding surface is used under water conditions in which foreign matter is mixed, the bearing material itself is excellent in wear resistance by combining the fluororesin and the aromatic polyetherketone.
本発明の立形ポンプは、羽根車を支持する回転軸をすべり軸受装置で支持し、前記すべり軸受装置の軸受すべり面が大気中に露出するドライ条件で運転される立形ポンプにおいて、前記すべり軸受装置に請求項１乃至７のいずれか１項のすべり軸受装置を用いることを特徴とする。 The vertical pump according to the present invention is a vertical pump that supports a rotating shaft that supports an impeller by a slide bearing device, and is operated in a dry condition in which a bearing sliding surface of the slide bearing device is exposed to the atmosphere. The sliding bearing device according to any one of claims 1 to 7 is used for the bearing device.
本発明は、以下に列挙する効果を奏する。
（１）すべり軸受装置の軸受すべり面が水のない大気中雰囲気で用いられる場合、フッ素樹脂、カーボン繊維による低摩擦を確保でき、芳香族ポリエーテルケトン、カーボン繊維による耐摩耗性を確保することができる。
（２）すべり軸受装置の軸受すべり面が土砂等の異物が混入した水中で用いられる場合、フッ素樹脂、芳香族ポリエーテルケトンを複合することにより軸受材料自体の耐摩耗性に優れている。
（３）フッ素樹脂、芳香族ポリエーテルケトン、カーボン繊維のすべり面での面積率を所定の比率になるように複合することにより、ドライ運転での低摩擦、耐摩耗性を確保することができ、異物混入水中運転での耐スラリー摩耗を確保することができる。
The present invention has the following effects.
(1) When the sliding surface of a sliding bearing device is used in an air-free atmosphere, low friction due to fluorine resin and carbon fiber can be secured, and wear resistance due to aromatic polyetherketone and carbon fiber should be secured. Can do.
(2) When the sliding surface of the sliding bearing device is used in water in which foreign matters such as earth and sand are mixed, the bearing material itself is excellent in wear resistance by combining fluororesin and aromatic polyetherketone.
(3) Low friction and wear resistance in dry operation can be ensured by combining the area ratio of the fluororesin, aromatic polyetherketone, and carbon fiber on the sliding surface so as to have a predetermined ratio. In addition, it is possible to ensure anti-slurry wear during operation under water containing foreign matter.
以下、本発明に係るすべり軸受装置の実施形態を図１乃至図４を参照して説明する。図１乃至図４において、同一または相当する構成要素には、同一の符号を付して重複した説明を省略する。
図１は、本発明に係るすべり軸受装置の一例を示す斜視図である。図１に示すすべり軸受装置１は、フッ素樹脂、芳香族ポリエーテルケトン、炭素繊維および不可避不純物の複合材料からなり、円筒形状に成形されている。円筒形状のすべり軸受装置１の内周面は軸受すべり面ＢＳを構成している。すなわち、すべり軸受装置１は、低摩擦と耐摩耗性を与えるフッ素樹脂と、強度が高く耐摩耗性を与える芳香族ポリエーテルケトンと、低摩擦を与えるカーボン繊維から成る材料を用いている。
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a plain bearing device according to the present invention will be described with reference to FIGS. 1 to 4, the same or corresponding components are denoted by the same reference numerals, and redundant description is omitted.
FIG. 1 is a perspective view showing an example of a plain bearing device according to the present invention. A plain bearing device 1 shown in FIG. 1 is made of a composite material of fluororesin, aromatic polyetherketone, carbon fiber, and inevitable impurities, and is formed into a cylindrical shape. The inner peripheral surface of the cylindrical slide bearing device 1 constitutes a bearing slide surface BS. That is, the sliding bearing device 1 uses a material composed of a fluororesin that provides low friction and wear resistance, an aromatic polyether ketone that has high strength and wear resistance, and a carbon fiber that provides low friction.
前記フッ素樹脂は、ＰＴＦＥ（ポリ四フッ化エチレン），ＰＦＡ（テトラフルオロエチレン・パーフルオロアルキルビニルエーテル共重合体），ＦＥＰ（テトラフルオロエチレン・ヘキサフルオロプロピレン共重合体(４．６フッ化)）のうち少なくとも一種類を含むものである。 The fluororesin is made of PTFE (polytetrafluoroethylene), PFA (tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer), FEP (tetrafluoroethylene / hexafluoropropylene copolymer (4.6 fluoride)). At least one of them is included.
前記芳香族ポリエーテルケトンは、ＰＥＫ（ポリエーテルケトン）、ＰＥＥＫ（ポリエーテルエーテルケトン）、ＰＥＫＫ（ポリエーテルケトンケトン）およびＰＥＥＫＫ（ポリエーテルエーテルケトンケトン）のうち少なくとも１種類を含むものである。炭素繊維は短繊維から構成されている。 The aromatic polyether ketone contains at least one of PEK (polyether ketone), PEEK (polyether ether ketone), PEKK (polyether ketone ketone) and PEEKK (polyether ether ketone ketone). Carbon fibers are composed of short fibers.
本発明者らは、低摩擦と耐摩耗性に影響を与える重要な要素として、軸受すべり面ＢＳにおける各材料の面積率であることに着目し、多数の試料（サンプル）を試作し、各材料の面積率を算出したものである。
表１は、試作したサンプル１〜１２について各材料の面積率（％）を算出した結果を示す。面積率はすべり面を顕微鏡で撮影し、観察部分を画像解析することにより求めたものである。
図２は、軸受すべり面を顕微鏡で撮影した画像を模式化した図である。図２中、白抜き部分は炭素繊維（カーボン繊維）、灰色部分は芳香族ポリエーテルケトン（ＰＥＥＫ）、黒色部分はフッ素樹脂（ＰＴＦＥ）である。
また、炭素繊維については、すべり面にある炭素繊維の直径と長さを測定したところ、直径は５〜７μｍ、長さは５〜１０００μｍである。
The inventors focused on the area ratio of each material on the bearing sliding surface BS as an important factor affecting the low friction and wear resistance, and produced a large number of samples (samples). The area ratio is calculated.
Table 1 shows the results of calculating the area ratio (%) of each material for samples 1 to 12 that were prototyped. The area ratio is obtained by photographing the sliding surface with a microscope and analyzing the image of the observed portion.
FIG. 2 is a diagram schematically showing an image obtained by photographing the bearing sliding surface with a microscope. In FIG. 2, the white part is carbon fiber (carbon fiber), the gray part is aromatic polyetherketone (PEEK), and the black part is fluororesin (PTFE).
Moreover, about carbon fiber, when the diameter and length of the carbon fiber in a slip surface were measured, a diameter is 5-7 micrometers and length is 5-1000 micrometers.
次に、フッ素樹脂、芳香族ポリエーテルケトン、炭素繊維の各々の材料が低摩擦および耐摩耗性に与える影響を調べるために、上記３つの材料の全てを含んだ本発明と、上記３つの材料のうち各１つの材料を含んでいない樹脂材料１，樹脂材料２，樹脂材料３とを試作し、試験を行った結果を示す。
表２は試験に使用した各材料のすべり面における各成分の面積率（％）を示し、表３は大気中すべり試験の結果を示し、表４は異物混入水中すべり試験の結果を示す。
Table 2 shows the area ratio (%) of each component on the sliding surface of each material used in the test, Table 3 shows the result of the air sliding test, and Table 4 shows the result of the foreign matter-containing water sliding test.
表３および表４から以下のことが分かる。
樹脂材料１は、大気中における摩擦係数が０．２と小さく低摩擦である。しかしながら、異物混入水中における摩耗速度は８２．５（μｍ／ｈ）と大きく、異物混入水中では非常に耐摩耗性に劣る。
樹脂材料２は、大気中における摩擦係数が０．４５と大きく、大気中において高摩擦である。しかしながら、異物混入水中における摩耗速度は８．５（μｍ／ｈ）と小さく、異物混入水中では耐摩耗性に優れている。
樹脂材料３は、大気中における摩擦係数が０．５と大きく、大気中において高摩擦である。なお、大気中すべり試験を行っている際に、摩擦係数が大きいことに起因して異常振動が発生し試験を中止したため、摩耗速度は測定不能であった。しかしながら、異物混入水中における摩耗速度は２．９（μｍ／ｈ）と小さく、異物混入水中では耐摩耗性に優れている。
本発明の材料は、大気中における摩擦係数が０．２５と小さく低摩擦であり、摩耗速度も０．４５（μｍ／ｈ）と他の材料に比較して小さく耐摩耗性に優れている。また、異物混入水中における摩耗速度は６．８（μｍ／ｈ）と小さく耐摩耗性に優れている。
このように、大気中と異物混入水中の両方において試作した中で最も優れているのは本発明の材料である。本発明の材料における大気中および異物混入水中での結果は、それぞれの環境で優れている樹脂材料１、樹脂材料３と比較してもほぼ同程度の良好な結果が得られた。
Table 3 and Table 4 show the following.
The resin material 1 has a low friction coefficient as low as 0.2 in the atmosphere. However, the wear rate in foreign matter-mixed water is as large as 82.5 (μm / h), and the wear resistance is very poor in foreign matter-mixed water.
The resin material 2 has a high friction coefficient of 0.45 in the atmosphere, and has high friction in the atmosphere. However, the wear rate in foreign matter-mixed water is as low as 8.5 (μm / h), and the wear resistance is excellent in foreign matter-mixed water.
The resin material 3 has a friction coefficient as large as 0.5 in the atmosphere and has high friction in the atmosphere. During the air sliding test, abnormal vibration occurred due to the large friction coefficient and the test was stopped, so the wear rate could not be measured. However, the wear rate in the foreign matter mixed water is as small as 2.9 (μm / h), and the foreign matter mixed water has excellent wear resistance.
The material of the present invention has a low friction coefficient of 0.25 in the atmosphere and low friction, and the wear rate is 0.45 (μm / h), which is small compared to other materials and excellent in wear resistance. In addition, the wear rate in the foreign matter-mixed water is as small as 6.8 (μm / h) and is excellent in wear resistance.
As described above, the material of the present invention is the most excellent in trial production in both the atmosphere and the foreign matter-containing water. The results of the material of the present invention in the air and in water contaminated with foreign matter were almost as good as those of the resin material 1 and the resin material 3 that were excellent in the respective environments.
図３は、本発明のすべり軸受装置の使用状態の一例を示す図である。回転軸１０には、その外周に軸受の相手材料であるスリーブ１１が嵌着されている。スリーブ１１は、ビッカース硬さ（Ｈｖ）が２００〜２５００であり、セラミックス、超硬合金、サーメットのいずれかで構成されている。スリーブ１１の外周面は、上述したすべり軸受装置１のすべり面と摺動する。すべり軸受装置１は、その外周が金属の軸受ケース１２によりつば部１２ａを介して回転機械のケーシング１３に固定されている。 FIG. 3 is a diagram illustrating an example of a usage state of the plain bearing device of the present invention. A sleeve 11, which is a mating material for the bearing, is fitted to the outer periphery of the rotary shaft 10. The sleeve 11 has a Vickers hardness (Hv) of 200 to 2500 and is made of any one of ceramics, cemented carbide, and cermet. The outer peripheral surface of the sleeve 11 slides with the sliding surface of the sliding bearing device 1 described above. The outer periphery of the plain bearing device 1 is fixed to a casing 13 of a rotary machine via a collar portion 12a by a metal bearing case 12.
図４は、本発明のすべり軸受装置が好適に使用される立形斜流ポンプを示す断面図である。図４に示す立形斜流ポンプにおいては、駆動用モータ（図示せず）は保守点検が容易なように陸上に設けられ、駆動用モータの回転は軸継手を介して軸２５，２５’に伝達され、軸２５’の先端部に固定されたインペラ２２を回転することとなる。前記軸２５と軸２５’とは中間軸継手２６により接続されている。インペラ２２の回転によって、水は吸込みベル２７から吸い込まれ、吐出ボウル２８および吊下げ管２９を通過して吐出エルボ３０から吐出される。軸２５，２５’は上部すべり軸受装置３２および下部すべり軸受装置３３によって支持されている。また軸２５が吐出エルボ３０を貫通する部分にはフローティングシール３４が設けられている。図４に示す構造の立形斜流ポンプにおいては、すべり軸受装置３２，３３は、ポンプ起動時には大気中で運転される。すなわち、すべり軸受装置３２，３３は軸受すべり面が大気中に露出するドライ条件で運転される。ポンプ起動後の定常運転時においては、すべり軸受装置３２，３３は土砂等の異物が混入した水中において運転される。このような過酷な条件で使用されるすべり軸受装置３２，３３に、大気中と異物混入水中の両方において優れた軸受特性を発揮する本発明のすべり軸受装置が好適に使用される。 FIG. 4 is a cross-sectional view showing a vertical mixed flow pump in which the plain bearing device of the present invention is preferably used. In the vertical mixed flow pump shown in FIG. 4, a drive motor (not shown) is provided on the land for easy maintenance and inspection, and the rotation of the drive motor is applied to the shafts 25 and 25 ′ via shaft couplings. The impeller 22 that is transmitted and fixed to the tip of the shaft 25 ′ is rotated. The shaft 25 and the shaft 25 ′ are connected by an intermediate shaft joint 26. As the impeller 22 rotates, water is sucked from the suction bell 27, passes through the discharge bowl 28 and the suspension pipe 29, and is discharged from the discharge elbow 30. The shafts 25 and 25 ′ are supported by an upper slide bearing device 32 and a lower slide bearing device 33. A floating seal 34 is provided at a portion where the shaft 25 penetrates the discharge elbow 30. In the vertical mixed flow pump having the structure shown in FIG. 4, the plain bearing devices 32 and 33 are operated in the atmosphere when the pump is activated. That is, the sliding bearing devices 32 and 33 are operated under dry conditions where the bearing sliding surfaces are exposed to the atmosphere. In the steady operation after the pump is started, the slide bearing devices 32 and 33 are operated in water in which foreign matters such as earth and sand are mixed. As the slide bearing devices 32 and 33 used under such severe conditions, the slide bearing device of the present invention that exhibits excellent bearing characteristics both in the atmosphere and in water containing foreign matter is suitably used.
これまで本発明の実施形態について説明したが、本発明は上述の実施形態に限定されず、その技術思想の範囲内において、種々の異なる形態で実施されてよいことは勿論である。 Although the embodiment of the present invention has been described so far, the present invention is not limited to the above-described embodiment, and it is needless to say that the present invention may be implemented in various different forms within the scope of the technical idea.
１ すべり軸受装置
１０ 回転軸
１１ スリーブ
１２ 軸受ケース
１２ａ つば部
１３ ケーシング
２２ インペラ
２５，２５’ 軸
２６ 中間軸継手
２７ 吸込みベル
２８ 吐出ボウル
２９ 吊下げ管
３０ 吐出エルボ
３２ 上部すべり軸受装置
３３ 下部すべり軸受装置
３４ フローティングシール
ＢＳ 軸受すべり面
DESCRIPTION OF SYMBOLS 1 Slide bearing apparatus 10 Rotating shaft 11 Sleeve 12 Bearing case 12a Collar part 13 Casing 22 Impeller 25, 25 'Shaft 26 Intermediate shaft joint 27 Suction bell 28 Discharge bowl 29 Suspension pipe 30 Discharge elbow 32 Upper slide bearing apparatus 33 Lower slide bearing Equipment 34 Floating seal BS Bearing sliding surface
Claims (8)
前記すべり軸受装置に請求項１乃至７のいずれか１項のすべり軸受装置を用いることを特徴とする立形ポンプ。 In a vertical pump that supports a rotating shaft that supports an impeller with a sliding bearing device and is operated under dry conditions in which the bearing sliding surface of the sliding bearing device is exposed to the atmosphere,
A vertical pump characterized in that the sliding bearing device according to any one of claims 1 to 7 is used for the sliding bearing device.
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| JP2012059996A JP5909392B2 (en) | 2012-03-16 | 2012-03-16 | Slide bearing device |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2012059996A JP5909392B2 (en) | 2012-03-16 | 2012-03-16 | Slide bearing device |
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| JP2013194769A true JP2013194769A (en) | 2013-09-30 |
| JP5909392B2 JP5909392B2 (en) | 2016-04-26 |
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| JP2012059996A Active JP5909392B2 (en) | 2012-03-16 | 2012-03-16 | Slide bearing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016171241A1 (en) * | 2015-04-24 | 2016-10-27 | 株式会社荏原製作所 | Sliding bearing device and pump provided with same |
| JPWO2015099004A1 (en) * | 2013-12-27 | 2017-03-23 | 株式会社荏原製作所 | Slide bearing device |
| JP2018087534A (en) * | 2016-11-29 | 2018-06-07 | 株式会社荏原製作所 | Pump unit |
| JP2019157786A (en) * | 2018-03-15 | 2019-09-19 | 株式会社荏原製作所 | Horizontal shaft pump |
| JP2019183697A (en) * | 2018-04-05 | 2019-10-24 | 株式会社荏原製作所 | Horizontal shaft pump device |
| WO2022149329A1 (en) * | 2021-01-06 | 2022-07-14 | 株式会社荏原製作所 | Sliding bearing, sliding bearing device, and pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2015099004A1 (en) * | 2013-12-27 | 2017-03-23 | 株式会社荏原製作所 | Slide bearing device |
| WO2016171241A1 (en) * | 2015-04-24 | 2016-10-27 | 株式会社荏原製作所 | Sliding bearing device and pump provided with same |
| JP2016205545A (en) * | 2015-04-24 | 2016-12-08 | 株式会社荏原製作所 | Slide bearing device and pump including the same |
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| JP2018087534A (en) * | 2016-11-29 | 2018-06-07 | 株式会社荏原製作所 | Pump unit |
| JP2019157786A (en) * | 2018-03-15 | 2019-09-19 | 株式会社荏原製作所 | Horizontal shaft pump |
| JP7025961B2 (en) | 2018-03-15 | 2022-02-25 | 株式会社荏原製作所 | Horizontal axis pump |
| JP2019183697A (en) * | 2018-04-05 | 2019-10-24 | 株式会社荏原製作所 | Horizontal shaft pump device |
| JP7051542B2 (en) | 2018-04-05 | 2022-04-11 | 株式会社荏原製作所 | Horizontal axis pump device |
| WO2022149329A1 (en) * | 2021-01-06 | 2022-07-14 | 株式会社荏原製作所 | Sliding bearing, sliding bearing device, and pump |
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| JP5909392B2 (en) | 2016-04-26 |
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