JP6336768B2 - 密封装置およびこれを備えた車輪用軸受装置 - Google Patents
密封装置およびこれを備えた車輪用軸受装置 Download PDFInfo
- Publication number
- JP6336768B2 JP6336768B2 JP2014023733A JP2014023733A JP6336768B2 JP 6336768 B2 JP6336768 B2 JP 6336768B2 JP 2014023733 A JP2014023733 A JP 2014023733A JP 2014023733 A JP2014023733 A JP 2014023733A JP 6336768 B2 JP6336768 B2 JP 6336768B2
- Authority
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- Prior art keywords
- sealing
- lip
- slinger
- seal
- diameter
- 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.)
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- 238000007789 sealing Methods 0.000 title claims description 135
- 210000000088 Lip Anatomy 0.000 claims description 143
- 241000213728 Chrysoblephus puniceus Species 0.000 claims description 79
- 210000003027 Ear, Inner Anatomy 0.000 claims description 48
- 238000005096 rolling process Methods 0.000 claims description 42
- 230000037250 Clearance Effects 0.000 claims description 20
- 230000035512 clearance Effects 0.000 claims description 20
- 238000004073 vulcanization Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 41
- 239000004519 grease Substances 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 13
- 230000004048 modification Effects 0.000 description 13
- 238000006011 modification reaction Methods 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 239000000428 dust Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 229920000459 Nitrile rubber Polymers 0.000 description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials 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[Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching Effects 0.000 description 3
- 229910000677 High-carbon steel Inorganic materials 0.000 description 2
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 2
- -1 S53C Chemical compound 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical class 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Images
Description
図1は、本発明に係る密封装置を備えた車輪用軸受の第1の実施形態を示す縦断面図、図2は、図1の一方の密封装置を示す断面図、図3(a)は、図2の密封装置の変形例を示す縦断面図、(b)は、(a)の要部拡大図、図4(a)は、図3の密封装置の変形例を示す縦断面図、(b)は、(a)の要部拡大図、図5(a)は、図3の密封装置の他の変形例を示す縦断面図、(b)は、(a)の要部拡大図、図6(a)は、図3の密封装置の他の変形例を示す縦断面図、(b)は、(a)の要部拡大図である。なお、以下の説明では、車両に組み付けた状態で車両の外側寄りとなる側をアウター側(図1の左側)、中央寄り側をインナー側(図1の右側)という。
2、29 外方部材
2a、29a 外側転走面
2b 端面
3 内輪
3a、30a 内側転走面
3b 小端面
3c 外径面
3d 大径側端面
4 転動体
5 保持器
6、32 アウター側の密封装置
7、16、20、22、25、33 インナー側の密封装置
8、12、34 芯金
9、13、18、27、35 シール部材
10、17、26 シール板
11、23 スリンガ
11a 円筒部
11b 立板部
11c、23a 鍔部
12a 嵌合部
12b 内径部
13a、35a サイドリップ
13b、35b ダストリップ
13c、35c グリースリップ
13d、18a、18a’、27a 補助リップ
14、15、21、37 ラビリンスシール
19 鍔部の端面
24 面取り部
28 内方部材
29b 車体取付フランジ
30 ハブ輪
30b 小径段部
30c セレーション
31 車体取付フランジ
31a ハブボルト
31b 車輪取付フランジの基部
36 磁気エンコーダ
36a 磁気エンコーダの端面
50 密封装置
51 シール板
52 スリンガ
52a、52c 円筒部
52b 立板部
53 外方部材
54 芯金
54a 嵌合部
54b 内径部
55 シール部材
55a サイドリップ
55b グリースリップ
55c 中間リップ
55d 補助リップ
56 内輪
57 ラビリンスシール
a 補助リップの接触点からシール板の内径までの寸法
b スリンガの鍔部の厚さ
c 鍔部とシール板の内径までの寸法
L ラビリンス長さ
S 空間
δ ラビリンスすきま
Claims (3)
- 互いに対向配置された環状のシール板とスリンガで構成され、
前記シール板が、固定側部材となる外方部材の端部に圧入される円筒状の嵌合部と、この嵌合部の端部から径方向内方に延びる内径部からなる芯金、およびこの芯金に加硫接着により一体に接合され、前記嵌合部の先端部を覆うように回り込んで接合されたシール部材を備え、
前記スリンガが、回転側部材となる内方部材に圧入される円筒部、およびこの円筒部から径方向外方に延びる立板部を備えると共に、
前記シール部材が、径方向外方に傾斜して形成され、前記スリンガの立板部に摺接するサイドリップと、このサイドリップの内径側に径方向内方に傾斜して形成され、前記スリンガの円筒部に摺接するシールリップを備えた密封装置において、
前記スリンガの立板部の外縁部から軸受内方側に延びる円筒状の鍔部が形成され、この鍔部が前記シール板と径方向すきまを介して対峙され、ラビリンスシールが形成されると共に、前記サイドリップの外径側に径方向外方に傾斜して延びる補助リップが形成され、この補助リップの先端部が前記鍔部の端面の外径側の角部に摺接されていることを特徴とする密封装置。 - 互いに対向配置された環状のシール板とスリンガで構成され、
前記シール板が、固定側部材となる外方部材の端部に圧入される円筒状の嵌合部と、この嵌合部の端部から径方向内方に延びる内径部からなる芯金、およびこの芯金に加硫接着により一体に接合され、前記嵌合部の先端部を覆うように回り込んで接合されたシール部材を備え、
前記スリンガが、回転側部材となる内方部材に圧入される円筒部、およびこの円筒部から径方向外方に延びる立板部を備えると共に、
前記シール部材が、径方向外方に傾斜して形成され、前記スリンガの立板部に摺接するサイドリップと、このサイドリップの内径側に径方向内方に傾斜して形成され、前記スリンガの円筒部に摺接するシールリップを備えた密封装置において、
前記スリンガの立板部の外縁部から軸受内方側に延びる円筒状の鍔部が形成され、この鍔部が前記シール板と径方向すきまを介して対峙され、ラビリンスシールが形成されると共に、前記サイドリップの外径側に径方向外方に傾斜して延びる補助リップが形成され、この補助リップの先端部が前記鍔部の端面の外径側に形成された面取り部に摺接されていることを特徴とする密封装置。 - 内周に複列の外側転走面が一体に形成された外方部材と、
一端部に車輪を取り付けるための車輪取付フランジを一体に有し、外周に軸方向に延びる小径段部が形成されたハブ輪、およびこのハブ輪の小径段部に嵌合された少なくとも一つの内輪からなり、外周に前記複列の外側転走面に対向する複列の内側転走面が形成された内方部材と、
この内方部材と前記外方部材のそれぞれの転走面間に転動自在に収容された複列の転動体と、
前記外方部材と内方部材との間に形成される環状空間の開口部を密封する密封装置と、を備えた車輪用軸受装置において、
前記密封装置が、前記請求項1または2に記載の密封装置で構成されていることを特徴とする車輪用軸受装置。
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