JPH0144799Y2 - - Google Patents
Info
- Publication number
- JPH0144799Y2 JPH0144799Y2 JP1986147822U JP14782286U JPH0144799Y2 JP H0144799 Y2 JPH0144799 Y2 JP H0144799Y2 JP 1986147822 U JP1986147822 U JP 1986147822U JP 14782286 U JP14782286 U JP 14782286U JP H0144799 Y2 JPH0144799 Y2 JP H0144799Y2
- Authority
- JP
- Japan
- Prior art keywords
- sealing device
- fixed ring
- shaft sealing
- rubber bellows
- end plates
- 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
- 238000007789 sealing Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、軸封技術に係るゴムベローズ型のウ
オーターポンプ用軸封装置に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a rubber bellows type water pump shaft sealing device relating to shaft sealing technology.
従来より、回転軸側に担持した回転環と機筐側
に担持した固定環を気密的に摺動して軸封するウ
オーターポンプ用軸封装置の二次シール部の構造
として、第５図に示すように、回転環５０を回転
軸５１に軸着したインペラ５２の嵌合凹部に対し
て断面がＬ字型の環状体からなるカツプガスケツ
ト５３を介して圧入一体化するとともに、該回転
環５０と密接摺動する固定環５４を、機筐５５の
軸孔に圧入嵌着した外筒５６に対して摺動自在に
外挿し、固定環５４の後端と外筒５６の端壁間に
介装したゴムベローズ５７の両端部間をスプリン
グホルダ５８を介してコイルスプリング５９によ
つて弾性付勢したものが使用されている。
Conventionally, the structure of the secondary seal part of a shaft sealing device for a water pump, which seals the shaft by airtightly sliding a rotating ring carried on the rotating shaft side and a fixed ring carried on the machine casing side, is shown in Fig. 5. As shown, the rotating ring 50 is press-fitted and integrated into the fitting recess of the impeller 52 which is pivotally attached to the rotating shaft 51 via a cup gasket 53 which is an annular body having an L-shaped cross section. A fixed ring 54 that slides closely is slidably inserted into an outer cylinder 56 that is press-fitted into a shaft hole of a machine casing 55, and is interposed between the rear end of the fixed ring 54 and the end wall of the outer cylinder 56. A rubber bellows 57 which is elastically biased between both ends by a coil spring 59 via a spring holder 58 is used.
しかし、この種の構成ではゴムベローズ５７の
両端は、回転環５０および外筒５６とそれぞれ接
着剤Ｓ，Ｓによつて固着して二次シール部を構成
しており、軸封装置の組立工程において接着剤の
配合、接着および乾燥等の工程を有し、多大な労
力と時間を要するため、生産コストが高騰する問
題を有していた。
However, in this type of configuration, both ends of the rubber bellows 57 are fixed to the rotating ring 50 and the outer cylinder 56 with adhesives S and S, respectively, to form a secondary seal, and the shaft sealing device assembly process This method involves steps such as blending the adhesive, bonding, and drying, which requires a great deal of labor and time, resulting in a problem of rising production costs.
本考案は上記問題に鑑みてなされたもので、組
立工数が低減するとともに、生産コストを引き下
げることができるウオーターポンプ用軸封装置を
提供することを目的とするものである。 The present invention has been made in view of the above problems, and aims to provide a shaft sealing device for a water pump that can reduce assembly man-hours and production costs.
本考案のウオーターポンプ用軸封装置は、回転
軸側に担持した回転環と、機筐側に支持筒および
該支持筒内のゴムベローズおよびコイルスプリン
グを介して担持した固定環を気密的に対向摺動せ
しめ、上記コイルスプリングが上記ゴムベローズ
の両端に形成した鍔状の端盤を相反する方向に押
圧して、該両端盤を上記固定環の端面および上記
支持筒の端面に圧接した構造を有する軸封装置に
おいて、上記両端盤の上記固定環の端面および上
記支持筒の端面との対向面に、軸方向にエツジ状
に突出し、軸芯に対して同心円状に延びる密接部
を形成したことを特徴とするものである。
The shaft sealing device for a water pump of the present invention has a rotating ring supported on the rotating shaft side and a fixed ring supported on the machine casing side via a support tube and a rubber bellows and coil spring inside the support tube, which are airtightly opposed to each other. A structure in which the coil spring presses flanged end plates formed at both ends of the rubber bellows in opposite directions, and presses the both end plates against the end face of the fixed ring and the end face of the support cylinder. In the shaft sealing device, a close contact portion protruding in the axial direction in an edge shape and extending concentrically with respect to the shaft center is formed on the end face of the fixed ring of the both end plates and the face facing the end face of the support cylinder. It is characterized by:
上記構成のウオーターポンプ用軸封装置は、ゴ
ムベローズ両端の鍔状の端盤に形成したエツジ状
の密接部が、コイルスプリングの押圧力によつて
固定環の端面および支持筒の端面と圧接して良好
なシール性を発揮するので、上記両端盤を固定環
端面および支持筒端面と接着剤により接着する必
要がない。
In the shaft sealing device for a water pump configured as described above, the edge-shaped close portions formed on the flanged end plates at both ends of the rubber bellows are pressed against the end surfaces of the fixed ring and the end surface of the support cylinder by the pressing force of the coil spring. Since it exhibits good sealing properties, it is not necessary to bond the above-mentioned both end plates to the end face of the fixed ring and the end face of the support cylinder with an adhesive.
以下、本考案ウオーターポンプ用軸封装置の実
施例を図面にしたがつて説明すると、第１図およ
び第２図は第一の実施例を示すものである。
Hereinafter, embodiments of the water pump shaft sealing device of the present invention will be described with reference to the drawings. FIGS. 1 and 2 show the first embodiment.
符号１は回転軸２に軸着したインペラ３のボス
部に形成した嵌合凹部４に対して、断面がＬ字状
環状体のカツプガスケツト５を介して圧入一体化
した回転環である。軸封装置は該回転環１と固定
環６を対向密接摺動して一次シール部を構成する
とともに、回転軸２に外挿した該固定環６の後端
をゴムベローズ７の一端に構成した端盤８と密接
してなるもので、該ゴムベローズ７の他端に構成
した端盤９を機筐１０の軸孔１１に対して外筒部
１３を圧入嵌着した支持筒１２の後壁１４面と密
接してなる。また、両端盤８，９の当接面には同
芯円状の軸芯と同芯円状の環状突条１５からなる
エツジ状の密接部をそれぞれ複数（実施例では２
条である）条構成した周条シール形状１６，１６
を一体的に構成するとともに、該ゴムベローズ７
に外挿したコイルスプリング１７の両端をスプリ
ングホルダ１８を介して上記両端盤８，９間に弾
装し、該環状突条１５先端のエツジ状密接部１５
をそれぞれ固定環２の後端および支持筒１２の後
壁１４と圧接して二次シール部を構成してなる。 Reference numeral 1 designates a rotating ring which is press-fitted into a fitting recess 4 formed in a boss portion of an impeller 3 which is pivotally attached to a rotating shaft 2 via a cup gasket 5 having an L-shaped annular cross section. In the shaft sealing device, the rotary ring 1 and the fixed ring 6 are closely slid against each other to form a primary seal, and the rear end of the fixed ring 6, which is inserted onto the rotating shaft 2, is formed as one end of the rubber bellows 7. The rear wall of the support cylinder 12 is formed in close contact with the end plate 8, and the end plate 9 formed at the other end of the rubber bellows 7 is press-fitted with the outer cylinder part 13 into the shaft hole 11 of the machine casing 10. It is in close proximity to the 14th side. Further, on the contact surfaces of both end plates 8 and 9, a plurality of edge-shaped close parts (in the embodiment, two
Circumferential seal shape 16, 16 composed of strips
are integrally constituted, and the rubber bellows 7
Both ends of the coil spring 17 inserted into the coil spring 17 are elastically mounted between the end plates 8 and 9 via the spring holder 18, and the edge-shaped close contact portion 15 at the tip of the annular protrusion 15
are pressed against the rear end of the fixed ring 2 and the rear wall 14 of the support cylinder 12, respectively, to form a secondary seal.
上記構成のウオーターポンプ用軸封装置は、ゴ
ムベローズ７に外挿したコイルスプリング１７の
弾性張力によつて固定環６を回転環１に押圧し、
密接摺回動するものである。しかるに該ゴムベロ
ーズ７の両端に構成した両端盤８，９の当接面に
は同芯円状のエツジ状の密接部からなる周条シー
ル形状１６，１６が一体的に構成されているた
め、組付と同時に二次シール部が構成されるよう
になる。 The shaft sealing device for a water pump configured as described above presses the fixed ring 6 against the rotating ring 1 by the elastic tension of the coil spring 17 inserted into the rubber bellows 7,
It slides and rotates closely. However, since the contact surfaces of the end plates 8 and 9 formed at both ends of the rubber bellows 7 are integrally formed with circumferential seal shapes 16 and 16 consisting of concentric edge-like close contact parts, The secondary seal part is constructed at the same time as assembly.
つぎに第３図および第４図は本考案の他の実施
例を示すものであり、前記実施例と異なる部分の
構成についてのみ説明する。 Next, FIGS. 3 and 4 show another embodiment of the present invention, and only the configurations of the parts that are different from the previous embodiment will be explained.
符号１９のゴムベローズは両端盤２０，２１が
軸芯と直交するように成形されるとともに、該端
盤２０，２１の各端面は平坦になるものである。
該ゴムベローズ１９の両端盤２０，２１間にはそ
れぞれ断面が略Ｌ字状の環状体からなるスプリン
グホルダ２２，２３を介して、該ゴムベローズ１
９に外挿したコイルスプリング１７を弾装し、ス
プリングホルダ２２，２３の端盤２４，２５を介
して上記ゴムベローズ１９の端盤２０，２１を固
定環６の後端面と支持筒１２の後壁１４にそれぞ
れ弾性押圧してなる。上記両スプリングホルダ２
２，２３の端盤２４，２５は外周部が内周部より
軸方向に突出した彎曲した断面を呈しており、該
端盤２４，２５をゴムベローズ１９の端盤２０，
２１の各背面に沿設してコイルスプリング１７に
よつて弾性押圧すると、該端盤２０，２１の当接
面が褶曲し、軸芯と同芯円状になる周条シール形
状１６，１６のエツジ状に突出した密接部２６，
２７を構成し、該周条シール形状１６，１６が二
次シール部を形成する。 The rubber bellows 19 is formed such that both end plates 20 and 21 are perpendicular to the axis, and each end surface of the end plates 20 and 21 is flat.
The rubber bellows 19 is connected between both end plates 20 and 21 of the rubber bellows 19 via spring holders 22 and 23, each of which is an annular body having a substantially L-shaped cross section.
The coil spring 17 inserted into the spring holder 9 is elastically loaded, and the end plates 20 and 21 of the rubber bellows 19 are connected to the rear end surface of the fixed ring 6 and the back of the support cylinder 12 via the end plates 24 and 25 of the spring holders 22 and 23. They are each elastically pressed against the wall 14. Both spring holders 2 above
The end plates 24 and 25 of 2 and 23 have curved cross-sections in which the outer circumferential portion protrudes in the axial direction from the inner circumferential portion, and the end plates 24 and 25 are connected to the end plates 20 and 25 of the rubber bellows 19, respectively.
When elastically pressed by a coil spring 17 along each back surface of the end plates 21, the abutment surfaces of the end plates 20, 21 are bent, and the circumferential seal shapes 16, 16 become concentric with the axis. A close contact portion 26 that protrudes in an edge shape,
27, and the circumferential seal shapes 16, 16 form a secondary seal portion.
したがつて、上記構成ではゴムベローズ１９に
対してスプリングホルダ２２，２３とコイルスプ
リング１７を組み付けることにより、該ゴムベロ
ーズ１９の端盤２０，２１の当接面に二次シール
部を形成するための周条シール形状１６，１６を
構成するものであり、前記第一の実施例と同様に
組立工数を削減することができる。 Therefore, in the above configuration, by assembling the spring holders 22, 23 and the coil spring 17 to the rubber bellows 19, a secondary seal portion is formed on the abutting surfaces of the end plates 20, 21 of the rubber bellows 19. This configuration constitutes the circumferential seal shapes 16, 16, and the number of assembly steps can be reduced as in the first embodiment.
以上述べたように本考案のウオーターポンプ用
軸封装置は、ゴムベローズの両端盤が、そのエツ
ジ状の密接部においてコイルスプリングの押圧に
より固定環および支持筒に圧接するので、良好な
二次シール部が構成される。またこのため、二次
シール部を接着剤で接着する必要もなくなり、当
該軸封装置の組み立ても簡単になるといつた優れ
た効果を奏する。
As described above, in the shaft sealing device for a water pump of the present invention, both end plates of the rubber bellows come into pressure contact with the fixed ring and the support cylinder at their edge-shaped close contact parts by the pressure of the coil spring, so that a good secondary seal can be achieved. Department will be formed. Furthermore, it is not necessary to bond the secondary seal portion with an adhesive, and the shaft sealing device can be easily assembled, which is an excellent effect.
第１図は本考案ウオーターポンプ用軸封装置の
第一の実施例を示す軸封部の正断面図、第２図は
同要部の拡大断面図、第３図は他の実施例を示す
軸封部の正断面図、第４図は同要部の拡大断面
図、第５図は従来の軸封装置を示す半裁した正断
面図である。
１…回転環、２…回転軸、３…インペラ、６…
固定環、７，１９…ゴムベローズ、８，９，２
０，２１，２４，２５…端盤、１０…機筐、１２
…支持筒、１５…環状突条、１６…周条シール形
状、１７…コイルスプリング、１８，２２，２３
…スプリングホルダ、２６，２７…密接部。
Fig. 1 is a front sectional view of a shaft sealing part showing a first embodiment of the shaft sealing device for a water pump of the present invention, Fig. 2 is an enlarged sectional view of the same essential part, and Fig. 3 shows another embodiment. FIG. 4 is a front sectional view of the shaft sealing part, FIG. 4 is an enlarged sectional view of the main part thereof, and FIG. 5 is a front sectional view cut in half showing a conventional shaft sealing device. 1... Rotating ring, 2... Rotating shaft, 3... Impeller, 6...
Fixed ring, 7, 19...Rubber bellows, 8, 9, 2
0, 21, 24, 25...end plate, 10...machine casing, 12
...Support tube, 15...Annular protrusion, 16...Peripheral seal shape, 17...Coil spring, 18, 22, 23
... Spring holder, 26, 27... Close contact part.
Claims (1)
および該支持筒内のゴムベローズおよびコイルス
プリングを介して担持した固定環を気密的に対向
摺動せしめ、上記コイルスプリングが上記ゴムベ
ローズの両端に形成した鍔状の端盤を相反する方
向に押圧して、該両端盤を上記固定環の端面およ
び上記支持筒の端面に圧接した構造を有する軸封
装置において、上記両端盤の上記固定環の端面お
よび上記支持筒の端面との対向面に、軸方向にエ
ツジ状に突出し、軸芯に対して同心円状に延びる
密接部を形成したことを特徴とするウオーターポ
ンプ用軸封装置。 A rotary ring supported on the rotating shaft side and a fixed ring supported on the machine casing side via a support tube, a rubber bellows in the support tube, and a coil spring are made to airtightly slide opposite each other, and the coil spring engages the rubber bellows. In the shaft sealing device, the shaft sealing device has a structure in which brim-shaped end plates formed at both ends are pressed in opposite directions to press the both end plates into pressure contact with the end face of the fixed ring and the end face of the support cylinder. A shaft sealing device for a water pump, characterized in that a close contact portion is formed on an end surface of the fixed ring and a surface facing the end surface of the support tube, protruding in an edge shape in the axial direction and extending concentrically with respect to the shaft core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986147822U JPH0144799Y2 (en) | 1986-09-29 | 1986-09-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986147822U JPH0144799Y2 (en) | 1986-09-29 | 1986-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6354891U JPS6354891U (en) | 1988-04-13 |
| JPH0144799Y2 true JPH0144799Y2 (en) | 1989-12-25 |
Family
ID=31061540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986147822U Expired JPH0144799Y2 (en) | 1986-09-29 | 1986-09-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0144799Y2 (en) |
-
1986
- 1986-09-29 JP JP1986147822U patent/JPH0144799Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6354891U (en) | 1988-04-13 |
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