JPS647276Y2 - - Google Patents
Info
- Publication number
- JPS647276Y2 JPS647276Y2 JP13522284U JP13522284U JPS647276Y2 JP S647276 Y2 JPS647276 Y2 JP S647276Y2 JP 13522284 U JP13522284 U JP 13522284U JP 13522284 U JP13522284 U JP 13522284U JP S647276 Y2 JPS647276 Y2 JP S647276Y2
- Authority
- JP
- Japan
- Prior art keywords
- housing
- bearing
- rotating shaft
- sealing member
- recess
- 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
- 239000004519 grease Substances 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000000428 dust Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は自動車用のウオータポンプに関す
る。[Detailed description of the invention] [Industrial application field] This invention relates to a water pump for automobiles.
従来のウオータポンプは第４図に示すように、
ポンプ室１内に配設したインペラ３を回転軸５の
一方の端部に取付けている。前記回転軸５は軸受
９を介してハウジング１１に支持され、またイン
ペラ３とハウジング１１との間に配設した密封部
材１５はポンプ室１内の水のハウジング１１内へ
の侵入を防止するようにポンプ室１内を密封して
いる。前記回転軸５には密封部材１５と軸受９と
の間の部分に水切板１７が取付けられ、またハウ
ジング１１は密封部材１５と水切板１７との間の
空間をハウジング１１の外部へ連通する小孔２３
を上部と下部とにそれぞれ有している。前記軸受
９から回転軸５とシール１３との間を通つて回転
軸５を伝つて洩れたグリースは水切板１７の軸受
９側の面を伝つて流動し、水切板１７の外周端部
から遠心力によつてハウジング１１の内周面へ飛
ばされる。また、軸受９から回転軸５とシール１
３との間を通つてシールの軸受９外側の側面へ洩
れたグリースは重力によつてハウジング１１の内
周面へ流動する。前記軸受９からハウジング１１
内へ洩れたグリース、ポンプ室１から密封部材１
５を通つてハウジング１１内へ侵入した水と水あ
か、および小孔２３からハウジング１１内へ侵入
した塵はいずれも下方の小孔２３からハウジング
１１外へ流出する。
The conventional water pump, as shown in Figure 4,
An impeller 3 disposed within a pump chamber 1 is attached to one end of a rotating shaft 5. The rotating shaft 5 is supported by a housing 11 via a bearing 9, and a sealing member 15 disposed between the impeller 3 and the housing 11 prevents water in the pump chamber 1 from entering the housing 11. The inside of pump chamber 1 is sealed. A drainage plate 17 is attached to the rotary shaft 5 at a portion between the sealing member 15 and the bearing 9, and the housing 11 has a small part that communicates the space between the sealing member 15 and the drainage plate 17 to the outside of the housing 11. Hole 23
The upper and lower parts each have The grease leaking from the bearing 9 along the rotating shaft 5 through the space between the rotating shaft 5 and the seal 13 flows along the surface of the drain plate 17 on the bearing 9 side, and is centrifugally released from the outer peripheral end of the drain plate 17. The force causes it to fly toward the inner circumferential surface of the housing 11. Also, from the bearing 9 to the rotating shaft 5 and the seal 1
The grease leaking to the outer side surface of the bearing 9 of the seal through the space between the bearing 9 and the bearing 9 flows to the inner circumferential surface of the housing 11 by gravity. From the bearing 9 to the housing 11
Grease leaked inward from pump chamber 1 to sealing member 1
Water and limescale that have entered the housing 11 through the small holes 23 and dust that have entered the housing 11 through the small holes 23 flow out of the housing 11 through the small holes 23 located below.
〔考案が解決しようとする問題点〕
軸受９から洩れたグリースは密封部材１５から
侵入した水あかおよび小孔２３から侵入した塵と
下方の小孔２３の入口付近でそれぞれ混合するの
で流動性が悪くなる。前記流動性が悪くなつたグ
リースは下方の小孔２３を塞ぐのでポンプ室１か
ら密封部材１５を通つてハウジング１１内へ侵入
した水はハウジング１１外へ流出不能となり、こ
の流出不能となつた水は軸受９内へ侵入するので
軸受９の寿命が低下する。[Problems to be solved by the invention] Grease leaking from the bearing 9 mixes with water scale that has entered from the sealing member 15 and dust that has entered from the small hole 23 near the entrance of the small hole 23 below, resulting in poor fluidity. Become. Since the grease whose fluidity has deteriorated blocks the small hole 23 in the lower part, the water that has entered the housing 11 from the pump chamber 1 through the sealing member 15 cannot flow out of the housing 11, and this water that cannot flow out. enters into the bearing 9, reducing the life of the bearing 9.
この考案はウオータポンプの軸受への水の侵入
を防止し、軸受の寿命が向上するウオータポンプ
を提供することを目的とする。 The object of this invention is to provide a water pump that prevents water from entering the bearing of the water pump and improves the life of the bearing.
ポンプ室１内に配設したインペラ３を回転軸５
の一方の端部に取付け、該回転軸５は軸受９を介
してハウジング１１に支持され、前記インペラ３
と回転軸５とを備えた回転部材と、ハウジング１
１との間に配設した密封部材１５はポンプ室１内
の水のハウジング１１内への侵入を防止するよう
にポンプ室１内を密封し、前記回転軸５には密封
部材１５と軸受９との間の部分に水切板１７が取
付けられ、前記ハウジング１１は密封部材１５と
水切板１７との間の空間をハウジング１１の外部
へ連通する小孔２３を有するウオータポンプにお
いて、前記ハウジング１１の内周面は小孔２３と
軸受９との間の部分にグリース溜用の凹所２５を
有することにある。
The impeller 3 arranged in the pump chamber 1 is connected to the rotating shaft 5
The rotating shaft 5 is supported by a housing 11 via a bearing 9, and the impeller 3
and a rotating shaft 5, and a housing 1.
A sealing member 15 disposed between the pump chamber 1 and the housing 11 seals the inside of the pump chamber 1 to prevent water in the pump chamber 1 from entering the housing 11. In a water pump, a drain plate 17 is attached to a portion between the housing 11 and the housing 11. The inner peripheral surface has a recess 25 for collecting grease in a portion between the small hole 23 and the bearing 9.
軸受９内のグリースはシール１３によつて密封
されているが、回転軸５の回転時に軸受９からハ
ウジング１１内へ洩れたグリースは重力および遠
心力等によつて凹所２５に溜るので下方の小孔２
３からのハウジング１１の外部への流出はない。
また、ポンプ室１内の水は密封部材１５によつて
ハウジング１１内への侵入を防止されているが、
ポンプ室１から密封部材１５を通つてハウジング
１１内へ侵入した水および水あかは水切板１７に
当つて若しくは当らないで下方の小孔２３からハ
ウジング１１の外部へ流出するので凹所２５へは
流入しない。さらに、小孔２３よりハウジング１
１内へ侵入した塵は、密封部材１５を通つてハウ
ジング１１内へ侵入した水および水あかと共に下
方の小孔２３からハウジング１１の外部へ流出す
る。
The grease inside the bearing 9 is sealed by a seal 13, but the grease that leaks from the bearing 9 into the housing 11 when the rotating shaft 5 rotates accumulates in the recess 25 due to gravity, centrifugal force, etc. small hole 2
3 to the outside of the housing 11.
Furthermore, the water in the pump chamber 1 is prevented from entering the housing 11 by the sealing member 15;
Water and limescale that have entered the housing 11 from the pump chamber 1 through the sealing member 15 either hit or do not hit the drainage plate 17 and flow out of the housing 11 through the lower small hole 23, so that they do not flow into the recess 25. do not. Furthermore, from the small hole 23, the housing 1
The dust that has entered the housing 11 flows out of the housing 11 through the lower small hole 23 along with water and water scale that have entered the housing 11 through the sealing member 15.
この考案の実施例を図面に基いて説明する。第
１図において、ポンプ室１内に配設したインペラ
３は回転軸５の一方の端部に取付けられており、
回転部材はインペラ３と回転軸５とを備えてい
る。前記回転軸５の軸方向の中間部は軸受９の内
輪軌道となつており、軸受９は内輪軌道の外周に
配設した外輪と、外輪の外輪軌道と内輪軌道との
間に配設した転動体と、保持器とを備えている。
前記軸受９はハウジング１１の内周面に嵌合して
取付けられているので回転軸５は軸受９を介して
ハウジング１１に支持されている。前記軸受９内
にはグリースが入れられ、このグリースは外輪に
取付けたシール１３によつてハウジング１１内へ
の洩れを防止されている。前記インペラ３と回転
軸５とを備えた回転部材と、ハウジング１１との
間に密封部材１５としてメカニカルシールが配設
され、この密封部材１５はハウジング１１の内周
面のインペラ３側の端部に取付けたバネ支持部材
と、このバネ支持部材にバネを介してインペラ３
側へ押圧される合成樹脂製の固定側リングと、こ
の固定側リングに接しそしてインペラ３に取付け
られた回転側リングとを備えている。前記密封部
材１５はポンプ室１内の水のハウジング１１内へ
の侵入を防止するようにポンプ室１内を密封して
いる。前記回転軸５には密封部材１５と軸受９と
の間の部分に水切板１７が取付けられ、この水切
板１７は回転軸５に嵌合して取付けられた薄肉の
円筒部１９と、円筒部１９の軸受９側の端部から
外周に伸びている平面状の薄肉の水切部２１と、
円筒部１９の密封部材１５側の端部から外周に伸
びそして密封部材１５のバネ取付部材にシールす
きまを介して対向する平面状の薄肉のシール部２
２とを有している。前記シール部２２は、後述す
る小孔２３からハウジング１１内へ侵入した塵が
密封部材１５の固定側リングと回転側リングとの
間に侵入することを防止する。前記ハウジング１
１の内周面の上面と下面とには軸方向から見て水
切部１７と同じ位置に若しくは水切部１７より密
封部材１５側の位置にハウジング１１の外部へ開
口する小孔２３がそれぞれ設けられている。従つ
て、ハウジング１１は密封部材１５と水切板１７
との間の空間をハウジング１１の外部へ連通する
小孔２３を上部と下部とにそれぞれ有している。
前記ハウジング１１の内周面は小孔２３と軸受９
との間の部分に内周みぞのグリース溜用の凹所２
５を有し、この凹所２５の径方向の中心線は軸受
９の軸心に対して下方に偏心している。前記凹所
２５の内周みぞが下方に偏心しているのはグリー
スが重力によつて下方に多く溜るからである。前
記軸受９内のグリースがシール１３と回転軸５と
の間から回転軸５を伝つてハウジング１１内へ洩
れても、この洩れたグリースは回転軸５の外周面
から遠心力によつて凹所２５内へ飛ばされる。ま
た、軸受９内のグリースがシール１３と回転軸５
との間からシール１３を伝つてハウジング１１内
へ洩れても、この洩れたグリースはシール１３の
軸受９外側の側面を伝つて凹所２５内へ流動す
る。なおハウジング１１内の水蒸気は上方の小孔
２３からハウジング１１の外部へ排気する。
An embodiment of this invention will be described based on the drawings. In FIG. 1, an impeller 3 disposed within a pump chamber 1 is attached to one end of a rotating shaft 5.
The rotating member includes an impeller 3 and a rotating shaft 5. The axially intermediate portion of the rotating shaft 5 is an inner ring raceway of a bearing 9, and the bearing 9 has an outer ring disposed around the outer circumference of the inner ring raceway, and a roller raceway arranged between the outer ring raceway and the inner ring raceway of the outer ring. It includes a moving body and a holder.
Since the bearing 9 is fitted and attached to the inner peripheral surface of the housing 11, the rotating shaft 5 is supported by the housing 11 via the bearing 9. Grease is contained in the bearing 9, and this grease is prevented from leaking into the housing 11 by a seal 13 attached to the outer ring. A mechanical seal is provided as a sealing member 15 between the rotating member including the impeller 3 and the rotating shaft 5 and the housing 11, and the sealing member 15 is located at the end of the inner peripheral surface of the housing 11 on the impeller 3 side. A spring support member attached to the impeller 3 is connected to the spring support member via a spring.
It includes a stationary side ring made of synthetic resin that is pressed toward the side, and a rotating side ring that is in contact with the stationary side ring and is attached to the impeller 3. The sealing member 15 seals the inside of the pump chamber 1 to prevent water in the pump chamber 1 from entering the housing 11. A draining plate 17 is attached to the rotating shaft 5 at a portion between the sealing member 15 and the bearing 9, and this draining plate 17 has a thin cylindrical portion 19 fitted and attached to the rotating shaft 5, and a cylindrical portion 19, a flat thin-walled draining portion 21 extending from the end on the bearing 9 side to the outer periphery;
A flat thin-walled sealing portion 2 extends from the end of the cylindrical portion 19 on the sealing member 15 side to the outer periphery and faces the spring mounting member of the sealing member 15 with a seal gap therebetween.
2. The seal portion 22 prevents dust that has entered the housing 11 from a small hole 23 (described later) from entering between the stationary ring and the rotating ring of the sealing member 15. The housing 1
Small holes 23 that open to the outside of the housing 11 are provided on the upper and lower surfaces of the inner circumferential surface of the housing 11 at the same position as the drain section 17 or at a position closer to the sealing member 15 than the drain section 17 when viewed from the axial direction. ing. Therefore, the housing 11 includes the sealing member 15 and the drain plate 17.
The upper and lower parts each have a small hole 23 that communicates the space between them to the outside of the housing 11.
The inner peripheral surface of the housing 11 has a small hole 23 and a bearing 9.
Recess 2 for grease reservoir in the inner groove between
5, and the radial center line of this recess 25 is eccentric downward with respect to the axis of the bearing 9. The reason why the inner circumferential groove of the recess 25 is eccentric downward is that a large amount of grease accumulates downward due to gravity. Even if the grease in the bearing 9 leaks from between the seal 13 and the rotary shaft 5 through the rotary shaft 5 into the housing 11, the leaked grease is pumped into the recess from the outer peripheral surface of the rotary shaft 5 by centrifugal force. 25. Also, the grease in the bearing 9 may leak between the seal 13 and the rotating shaft 5.
Even if the grease leaks into the housing 11 through the seal 13 from between the seal 13 and the housing 11, the leaked grease flows along the side surface of the seal 13 on the outside of the bearing 9 and flows into the recess 25. The water vapor within the housing 11 is exhausted to the outside of the housing 11 through the small hole 23 in the upper part.
第２図はこの考案の第二の実施例であるが、水
切板１７は回転軸５に嵌合して取付けられた薄肉
の円筒部１９と、円筒部１９から外周に伸びてい
る平面状の薄肉の水切部２１と、水切部２１から
凹所２５に伸びている大径状の薄肉のグリース案
内部２７とを有している。前記水切部２１は軸方
向から見て小孔２３と同じ位置に若しくは小孔２
３より軸受９側の位置に位置している。前記軸受
９内のグリースがシール１３と回転軸５との間か
ら回転軸５を伝つてハウジング１１内へ洩れて
も、この洩れたグリースはグリース案内部２７の
軸受９側の面を伝つて流動し、グリース案内部２
７の凹所２５側の端部から遠心力によつて凹所２
５内へ飛ばされて凹所２４内に溜る。 FIG. 2 shows a second embodiment of this invention, and the draining plate 17 includes a thin cylindrical portion 19 fitted and attached to the rotating shaft 5, and a planar plate extending from the cylindrical portion 19 to the outer periphery. It has a thin-walled drain section 21 and a large-diameter thin-walled grease guide section 27 extending from the drain section 21 to the recess 25. The drainage part 21 is located at the same position as the small hole 23 when viewed from the axial direction, or at the same position as the small hole 23.
It is located at a position closer to the bearing 9 than the bearing 3. Even if the grease in the bearing 9 leaks from between the seal 13 and the rotating shaft 5 through the rotating shaft 5 into the housing 11, this leaked grease flows along the surface of the grease guide 27 on the bearing 9 side. Grease guide part 2
The centrifugal force from the end of the recess 25 side of the recess 2
5 and accumulates in the recess 24.
第３図はこの考案の第三の実施例であるが、水
切板１７は回転軸５に嵌合して取付けられた薄肉
の円筒部１９と、円筒部１９の密封部材１５側の
端部から外周に伸びている平面状の薄肉の水切部
２１と、円筒部１９の軸受９側の端部から凹所２
５に伸びている平面状の薄肉のグリース案内部２
７とを有している。前記水切部２１の外周部は軸
方向から見て小孔２３と同じ位置に若しくは小孔
２３より軸受９側の位置に位置している。前記軸
受９内のグリースが回転軸５を伝つてハウジング
１１内へ洩れても、この洩れたグリースはグリー
ス案内部２７の軸受９側の面を伝つて流動し、グ
リース案内部２７の凹所２５側の端部から遠心力
によつて凹所２５内へ飛ばされて凹所２５内に溜
る。 FIG. 3 shows a third embodiment of this invention, in which the draining plate 17 has a thin cylindrical portion 19 fitted and attached to the rotating shaft 5, and an end of the cylindrical portion 19 on the sealing member 15 side. A thin planar draining portion 21 extending to the outer periphery and a recess 2 extending from the end of the cylindrical portion 19 on the bearing 9 side.
A planar thin-walled grease guide section 2 extending to 5
7. The outer periphery of the drain portion 21 is located at the same position as the small hole 23 or at a position closer to the bearing 9 than the small hole 23 when viewed from the axial direction. Even if the grease in the bearing 9 leaks into the housing 11 through the rotating shaft 5, the leaked grease flows along the surface of the grease guide 27 on the bearing 9 side, and flows into the recess 25 of the grease guide 27. It is blown into the recess 25 from the side end by centrifugal force and accumulates in the recess 25.
なお、凹所２５は内周みぞではなく、ハウジン
グ１１の内周面の下面にのみ設けたみぞおよび凹
み等でも良い。 Note that the recess 25 is not an inner circumferential groove, but may be a groove, a recess, or the like provided only on the lower surface of the inner circumferential surface of the housing 11.
また、ハウジング１１に取付けた密封部材１５
が回転軸５に接してポンプ室１内を密封しても良
い。 Also, a sealing member 15 attached to the housing 11
may be in contact with the rotating shaft 5 to seal the inside of the pump chamber 1.
さらに、ハウジング１１は下方の小孔２３のみ
を有して上方の小孔２３を有しなくても良い。 Further, the housing 11 may have only the lower small hole 23 and not the upper small hole 23.
この考案によると、軸受９からハウジング１１
内へ洩れたグリースは凹所２５に溜るので下方の
小孔２３が塞がらない。それゆえに、軸受９内へ
の水の侵入がないので軸受９の寿命が向上すると
いう効果を有する。
According to this invention, from the bearing 9 to the housing 11
Since the grease leaking inward collects in the recess 25, the lower small hole 23 is not blocked. Therefore, since there is no water intrusion into the bearing 9, the life of the bearing 9 is improved.
第１図はこの考案の一実施例を示すウオータポ
ンプの断面図、第２図および第３図はこの考案の
他の実施例を示すウオータポンプの断面図、第４
図は従来のウオータポンプの断面図である。
図中、１はポンプ室、３はインペラ、５は回転
軸、９は軸受、１１はハウジング、１５は密封部
材、１７は水切板、２３は小孔、２５は凹所であ
る。
FIG. 1 is a sectional view of a water pump showing one embodiment of this invention, FIGS. 2 and 3 are sectional views of a water pump showing other embodiments of this invention, and FIG.
The figure is a sectional view of a conventional water pump. In the figure, 1 is a pump chamber, 3 is an impeller, 5 is a rotating shaft, 9 is a bearing, 11 is a housing, 15 is a sealing member, 17 is a drain plate, 23 is a small hole, and 25 is a recess.
Claims (1)
５の一方の端部に取付け、該回転軸５は軸受９
を介してハウジング１１に支持され、前記イン
ペラ３と回転軸５とを備えた回転部材と、ハウ
ジング１１との間に配設した密封部材１５はポ
ンプ室１内の水のハウジング１１内への侵入を
防止するようにポンプ室１内を密封し、前記回
転軸５には密封部材１５と軸受９との間の部分
に水切板１７が取付けられ、前記ハウジング１
１は密封部材１５と水切板１７との間の空間を
ハウジング１１の外部へ連通する小孔２３を有
するウオータポンプにおいて、前記ハウジング
１１の内周面は小孔２３と軸受９との間の部分
にグリース溜用の凹所２５を有することを特徴
とするウオータポンプ。 ２ 凹所２５が内周みぞである実用新案登録請求
の範囲第１項記載のウオータポンプ。 ３ 内周みぞの径方向の中心線が軸受９の軸心に
対して下方に偏心している実用新案登録請求の
範囲第２項記載のウオータポンプ。 ４ 水切板１７が回転軸５に嵌合して取付けられ
た円筒部１９と、円筒部１９から外周に伸びて
いる水切部２１と、円筒部１９と水切部２１と
のいずれか一方から凹所２５に伸びているグリ
ース案内部２７とを有する実用新案登録請求の
範囲第１項記載のウオータポンプ。[Claims for Utility Model Registration] 1. An impeller 3 disposed in a pump chamber 1 is attached to one end of a rotating shaft 5, and the rotating shaft 5 is attached to a bearing 9.
A sealing member 15 disposed between the housing 11 and the rotating member, which is supported by the housing 11 via the impeller 3 and the rotating shaft 5, prevents water in the pump chamber 1 from entering the housing 11. A drainage plate 17 is attached to the rotary shaft 5 at a portion between the sealing member 15 and the bearing 9, and the housing 1
1 is a water pump having a small hole 23 that communicates the space between the sealing member 15 and the drain plate 17 to the outside of the housing 11, and the inner peripheral surface of the housing 11 is a portion between the small hole 23 and the bearing 9. A water pump characterized in that it has a recess 25 for a grease reservoir. 2. The water pump according to claim 1, wherein the recess 25 is an inner groove. 3. The water pump according to claim 2, wherein the radial center line of the inner circumferential groove is eccentric downward with respect to the axis of the bearing 9. 4. A cylindrical portion 19 to which the draining plate 17 is fitted and attached to the rotating shaft 5, a draining portion 21 extending from the cylindrical portion 19 to the outer periphery, and a recess from either the cylindrical portion 19 or the draining portion 21. 25. The water pump according to claim 1, which has a grease guide portion 27 extending to 25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13522284U JPS647276Y2 (en) | 1984-09-07 | 1984-09-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13522284U JPS647276Y2 (en) | 1984-09-07 | 1984-09-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6151497U JPS6151497U (en) | 1986-04-07 |
| JPS647276Y2 true JPS647276Y2 (en) | 1989-02-27 |
Family
ID=30693721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13522284U Expired JPS647276Y2 (en) | 1984-09-07 | 1984-09-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS647276Y2 (en) |
-
1984
- 1984-09-07 JP JP13522284U patent/JPS647276Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6151497U (en) | 1986-04-07 |
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