JP6046397B2 - ウォータポンプ用軸受 - Google Patents
ウォータポンプ用軸受 Download PDFInfo
- Publication number
- JP6046397B2 JP6046397B2 JP2012148556A JP2012148556A JP6046397B2 JP 6046397 B2 JP6046397 B2 JP 6046397B2 JP 2012148556 A JP2012148556 A JP 2012148556A JP 2012148556 A JP2012148556 A JP 2012148556A JP 6046397 B2 JP6046397 B2 JP 6046397B2
- Authority
- JP
- Japan
- Prior art keywords
- water pump
- oil
- pulley
- outer ring
- bearing
- 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 - Fee Related
Links
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- MZYHMUONCNKCHE-UHFFFAOYSA-N naphthalene-1,2,3,4-tetracarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=C(C(O)=O)C(C(O)=O)=C21 MZYHMUONCNKCHE-UHFFFAOYSA-N 0.000 description 1
- KVQQRFDIKYXJTJ-UHFFFAOYSA-N naphthalene-1,2,3-tricarboxylic acid Chemical compound C1=CC=C2C(C(O)=O)=C(C(O)=O)C(C(=O)O)=CC2=C1 KVQQRFDIKYXJTJ-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- 229960002446 octanoic acid Drugs 0.000 description 1
- 229920002601 oligoester Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 239000005076 polymer ester Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- GGHDAUPFEBTORZ-UHFFFAOYSA-N propane-1,1-diamine Chemical compound CCC(N)N GGHDAUPFEBTORZ-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- CTJJGIVJOBVMEO-UHFFFAOYSA-N tetraoctyl benzene-1,2,4,5-tetracarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC(C(=O)OCCCCCCCC)=C(C(=O)OCCCCCCCC)C=C1C(=O)OCCCCCCCC CTJJGIVJOBVMEO-UHFFFAOYSA-N 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- VOZKAJLKRJDJLL-UHFFFAOYSA-N tolylenediamine group Chemical group CC1=C(C=C(C=C1)N)N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 description 1
- UWHZIFQPPBDJPM-BQYQJAHWSA-N trans-vaccenic acid Chemical compound CCCCCC\C=C\CCCCCCCCCC(O)=O UWHZIFQPPBDJPM-BQYQJAHWSA-N 0.000 description 1
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 description 1
- SMYKBXMWXCZOLU-UHFFFAOYSA-N tris-decyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCCCC)C(C(=O)OCCCCCCCCCC)=C1 SMYKBXMWXCZOLU-UHFFFAOYSA-N 0.000 description 1
- 229960002703 undecylenic acid Drugs 0.000 description 1
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Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Pulleys (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
- Lubricants (AREA)
Description
このグリースの基油は、40℃における動粘度が13〜73mm2/sであり、より好ましくは20〜55mm2/sであり、最も好ましくは22〜40mm2/sである。40℃における動粘度が13mm2/s 未満の場合は粘度が低すぎて油膜切れを起こしやすくなる。一方、40℃における動粘度が73mm2/sより高いと、撹拌抵抗による発熱量が大きくなり、高速回転時の軸受温度が高温(例えば140℃以上)となり、グリースが劣化するおそれがある。上記範囲内の動粘度の基油は、低粘度であり回転トルク低減を図りながら、所要の潤滑性を有し、軸受の温度上昇も抑制できる。なお、基油として混合油を用いる場合は、この混合油の動粘度が上記範囲内であることが好ましい。
2 内輪
3 外輪
4 シール部材
5 転動体
6 保持器
7 回転軸
8 プレート
9 プーリ
10 ハウジング
11 プロペラ
12 ベルト
13 ウェルド
14 メカニカルシール
21 ウォータポンプ
22 プーリ
23 回転軸
24 ハウジング
25 プロペラ
26 メカニカルシール
27 転がり軸受
Claims (11)
- ハウジングに固定された内輪と、一端に冷却水を循環するプロペラが連接された回転軸と連結された外輪と、この内輪および外輪間に介在する複数の転動体と、前記内輪および外輪の軸方向両端開口部をシールする一対のシール部材とを有し、前記転動体の周囲に、基油と増ちょう剤とを含むグリースを封入してなる、外輪回転式のウォータポンプ用軸受であって、
前記外輪は、外径部にエンジン出力をベルトを介して受けるプーリが一体に設けられており、
前記プーリの幅は外輪軸方向幅以下であり、前記ベルトからの負荷位置が軸受幅の中央部であり、
前記プーリは合成樹脂の射出成形体であり、そのウェルドが該プーリの径方向に沿って位置し、かつ、該プーリの軸方向中心から外れて2箇所以上にあり、
前記基油は、40℃における動粘度が13〜73mm2/sであり、前記増ちょう剤は、ウレア化合物であることを特徴とするウォータポンプ用軸受。 - 前記基油が、エステル油およびポリ−α−オレフィン油から選ばれた少なくとも1つの油であることを特徴とする請求項1記載のウォータポンプ用軸受。
- 前記エステル油が、ポリオールエステル油であることを特徴とする請求項2記載のウォータポンプ用軸受。
- 前記基油が、前記エステル油15〜95重量%と前記ポリ−α−オレフィン油5〜85重量%の混合油であることを特徴とする請求項2または請求項3記載のウォータポンプ用軸受。
- 前記ウレア化合物が、脂肪族ジウレア化合物、脂環族ジウレア化合物、または脂肪族−脂環族ジウレア化合物であることを特徴とする請求項1ないし請求項4のいずれか1項記載のウォータポンプ用軸受。
- 前記ウレア化合物が、前記脂肪族−脂環族ジウレア化合物であることを特徴とする請求項5記載のウォータポンプ用軸受。
- 前記グリースの封入量が、軸受内部の静止空間体積の80%以下の体積比率となる量であることを特徴とする請求項1ないし請求項6のいずれか1項記載のウォータポンプ用軸受。
- 前記シール部材が複数のリップ部を有し、少なくとも1つのリップ部が前記内輪とラジアル方向で接触することを特徴とする請求項1ないし請求項7のいずれか1項記載のウォータポンプ用軸受。
- 前記リップ部は、ニトリルゴム、アクリルゴム、シリコーンゴム、またはフッ素ゴムから形成されることを特徴とする請求項8記載のウォータポンプ用軸受。
- 前記外輪と前記回転軸とが、プレートを介して連結されていることを特徴とする請求項1ないし請求項9のいずれか1項記載のウォータポンプ用軸受。
- 前記外輪の前記プーリとの係合部分に、軸方向溝および/または周方向溝が形成されていることを特徴とする請求項1ないし請求項10のいずれか1項記載のウォータポンプ用軸受。
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| JP6281714B2 (ja) * | 2016-01-18 | 2018-02-21 | ダイキン工業株式会社 | 遠心ファン及び遠心ファンを備えた空気調和機 |
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| JP3346590B2 (ja) * | 1992-04-30 | 2002-11-18 | 本田技研工業株式会社 | ウォータポンプの水切り構造 |
| JP2002339995A (ja) * | 2001-05-15 | 2002-11-27 | Koyo Seiko Co Ltd | 転がり軸受 |
| JP2005325868A (ja) * | 2004-05-12 | 2005-11-24 | Nsk Ltd | 密封装置付転がり軸受ユニット、及び密封板付転がり軸受 |
| JP2008303896A (ja) * | 2007-06-05 | 2008-12-18 | Nsk Ltd | 水ポンプ軸受 |
| JP5392595B2 (ja) * | 2008-04-08 | 2014-01-22 | Ntn株式会社 | グリース封入外輪回転用転がり軸受 |
| JP5422158B2 (ja) * | 2008-08-28 | 2014-02-19 | Ntn株式会社 | 外輪回転クラッチレリーズ軸受およびクラッチレリーズ軸受装置 |
| JP5117977B2 (ja) * | 2008-09-30 | 2013-01-16 | Ntn株式会社 | 樹脂プーリ付き軸受、およびその製造方法 |
| JP2011085231A (ja) * | 2009-10-19 | 2011-04-28 | Nsk Ltd | 合成樹脂製保持器及びその製造方法並びに製造装置 |
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