CN1134525A - Mechanical sealing apparatus - Google Patents
Mechanical sealing apparatus Download PDFInfo
- Publication number
- CN1134525A CN1134525A CN 95104266 CN95104266A CN1134525A CN 1134525 A CN1134525 A CN 1134525A CN 95104266 CN95104266 CN 95104266 CN 95104266 A CN95104266 A CN 95104266A CN 1134525 A CN1134525 A CN 1134525A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- urceolus
- seal ring
- convex shoulder
- seal
- 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.)
- Pending
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- Sealing Devices (AREA)
- Mechanical Sealing (AREA)
Abstract
In the mechanical sealing device, one side of outer barrel is fixed onto rotary shaft bearing, sealing ring is mounted outside the other side and corrugate rubber pipe is mounted between the two side with its two ends being forced by spring to seal separately the sealing ring side and outer barrel side. The formed annular notched bar makes the two sides of lug pressed to sealing ring side and outer barrel side, and the lug engages partially into the notched bar to form and annular raised bar.
Description
The invention relates to a kind of mechanical seal device, and it can be used in the water pump in the engine cooling of automobile preferably.
The existing mechanical seal arrangement is put down in writing just like the real fair 1-44799 communique of Japanese patent gazette.
This mechanical seal device is that a side of the supporting drum that constitutes urceolus is fixed on the axle support of turning axle of the frame that constitutes the pump housing, seal ring is contained in the outside of the opposite side of above-mentioned supporting drum, in the middle of a side of side of the retaining ring that constitutes seal ring and above-mentioned supporting drum, is installing the rubber bellows.
And, form at the two ends of this rubber bellows, constitute facing to the side of end plate of convex shoulder, by the compression be arranged on the spring force between this end plate and its side effect, they are connected airtight with a side of said fixing ring and a side of supporting drum respectively, and the opposite side of said fixing ring connects airtight with the pivoted loop that is fixed on the formation diaphragm seal on the turning axle side, seals gap between above-mentioned turning axle and the axle support thus.
But, above-mentioned existing mechanical seal arrangement is to form respectively with the part of connecting airtight that constitutes the prominent bar of ring-type being arranged on a side of the end plate on the rubber bellows two ends with being integral, and make this close part, and make above-mentioned front-end edge portion that each connects airtight part be crimped on the side of retaining ring and be crimped on the side of urceolus with rubber.The front-end edge portion of therefore connecting airtight portion is power by compression often.In this case, use is in hot environment atmosphere, connect airtight in the front-end edge portion of portion permanent deformation can take place, thereby can not keep end plate one side on one side and the sealing between retaining ring one side, and end plate one side of another side and the sealing between supporting drum one side.
The invention is made in order to solve above-mentioned existing in prior technology problem, and its objective is provides a kind of mechanical seal device that can keep sealability for prolonged period of time.
The mechanical seal device of the invention of making is that a side of urceolus is fixed on the axle support of turning axle in order to achieve the above object, seal ring is contained on the outside of urceolus opposite side, the rubber bellows is contained between the side of side of seal ring and urceolus, with spring one side of the convex shoulder vis-a-vis that forms on the rubber bellows two ends is connected airtight on the side of seal ring and on the side of urceolus respectively, it is characterized in that on a side of side of above-mentioned seal ring and urceolus, forming circular recessed, and a side pressure that makes above-mentioned convex shoulder is connected on the side of side of above-mentioned seal ring and urceolus, and a side that makes convex shoulder partly nips in above-mentioned circular recessed, forms the side and connect airtight circular prominent bar on circular recessed wall on a side of above-mentioned convex shoulder.
Mechanical seal device with said structure, effect by spring, one side of the convex shoulder of rubber bellows is crimped on respectively on the side of side of seal ring and urceolus, set ring-type is recessed on the side by side of above-mentioned seal ring and urceolus, forms the prominent bar of ring-type on a side of above-mentioned convex shoulder.
And the opposite side that makes seal ring connects airtight on diaphragm seal, carries out once sealing thus.One side of convex shoulder is connected airtight respectively on the side of seal ring and on the side of urceolus, the side of the prominent bar of the set ring-type of one side of convex shoulder is connected airtight respectively on the wall of recessed of the set ring-type of a side of seal ring and urceolus one side, carry out secondary seal thus.
Under the state of above-mentioned secondary seal, do not make compression force on the set circular prominent bar of a side of above-mentioned convex shoulder, even in the ambiance of high temperature, use, on the prominent bar of above-mentioned ring-type, do not produce permanent deformation yet, can keep initial sealability
Below, with reference to accompanying drawing the embodiment of the invention is described.
Fig. 1 is a sectional view of representing the mechanical seal device of the invention is used in the embodiment on the water pump,
Fig. 2 (1) is the enlarged view of the major component of expression said apparatus,
Fig. 2 (2) is the part enlarged view of Fig. 2 (1).
In the axis hole 2 that on the axle support 1a of the pump housing 1, forms, by being contained in the bearing that do not have expression on the figure in this axis hole 2, can turning axle 3 by free rotaring ground supporting, be contained in impeller 4 on the side end of this turning axle 3 and be housed on the coolant path 5 in the above-mentioned pump housing 1.
At the axle support 1a of the turning axle 3 on the above-mentioned pump housing 1 be contained between the impeller 4 on the above-mentioned turning axle 3, annular seal sheet 6 and seal ring 7 and rubber bellows 8 and the urceolus 9 that centers on turning axle 3 be set as described below.
Above-mentioned diaphragm seal 6 is fixed in the recess 4a that forms in the hub portion of above-mentioned impeller 4 by bowl-shape packing ring 10.
On a side of above-mentioned urceolus 9, tubular assembly department 9b is being set continuously by periphery protuberance 9a.With this assembly department 9b one side of urceolus 9 is fixed on the above-mentioned axle support 1a.
Above-mentioned seal ring 7 can be contained in the opposite side of above-mentioned urceolus 9 with being free to slide.
And above-mentioned bellows 8 is contained in a side 7a of seal ring 7
1And constitute between the periphery protuberance 9a of above-mentioned urceolus 9 one sides, form the side 8a of vis-a-vis convex shoulder 8a, 8b at the two ends of rubber bellows 8
1, 8b
1Respectively with a side 7a of seal ring 7
1With the periphery protuberance 9a of urceolus 9 vis-a-vis.
Be contained in the opposite side 8a of above-mentioned convex shoulder 8a, 8b with spring holder 11a, 11b with making spring 12 compressions
2, 8b
2Between.
By the effect of this spring 12, make the side 8a of above-mentioned convex shoulder 8a, 8b
1, 8b
1Be crimped on a side 7a of above-mentioned seal ring 7 respectively
1Connect airtight with them with the periphery protuberance 9a of urceolus 9 with going up, and make the opposite side 7a of above-mentioned seal ring 7
2Connecting airtight with it with the diaphragm seal 6 crimping ground that is fixed on above-mentioned turning axle 3 sides.
Side 7a at above-mentioned seal ring 7
1Form many with concentric circular recessed 13 of turning axle 13
1, and make the side 8a of convex shoulder 8a
1Be crimped on a side 7a of seal ring 7
1On, and make this side 8a
1A part nip above-mentioned circular recessed 13
1In; Side 8a at above-mentioned convex shoulder 8a
1Many sides of last formation and above-mentioned circular recessed 13
1The circular prominent bar 14 that connects airtight of wall
1
In addition, on the periphery protuberance 9a of above-mentioned urceolus 9, form many with concentric circular recessed 13 of turning axle 3
2, and make the side 8b of convex shoulder 8b
1Be crimped on the periphery protuberance 9a of urceolus 9, make this side 8b
1A part nip at above-mentioned circular recessed 13
2In, at the side 8b of above-mentioned convex shoulder shoulder 8b
1Many sides of last formation and above-mentioned circular recessed 13
2The circular prominent bar 14 that connects airtight of wall
2
Seal arrangement with said structure by the effect of spring 12, makes the side 8a of the protruding 8a of having, the 8b of rubber bellows 8
1, 8b
1Be crimped on a side 7a of seal ring 7 respectively
1Go up and the periphery protuberance 9a of urceolus 9 on, by a side 7a who is arranged on above-mentioned seal ring 7
1On circular recessed 13 and the periphery protuberance 9a of urceolus 9 on circular recessed 13
2Make the side 8a of above-mentioned convex shoulder 8a, 8b
1, 8b
1On form circular prominent bar 14 respectively
1, 14
2
And, make the opposite side 7a of seal ring 7
2Connect airtight on diaphragm seal 6, carry out once sealing thus.Make the side 8a of convex shoulder 8a, 8b again
1, 8b
1Connect airtight a side 7a respectively at seal ring 7
1Go up and the periphery protuberance 9a of urceolus 9 on, and make a side 8a who is arranged on convex shoulder 8a, 8b
1, 8b
1On circular prominent bar 14
1, 14
2Two sides connect airtight a side 7a at seal ring 7
1Go up set circular recessed 13 with the periphery protuberance 9a of urceolus 9
1, 13
2Wall on, carry out secondary seal thus.Like this, just can prevent that cooling water from leaking into the outside from the coolant path 5 in the pump housing 1 that impeller is housed.
Under the state of above-mentioned secondary seal, can not make compressive force act on the side 8a of above-mentioned convex shoulder 8a, 8b by above-mentioned mould-forming method
1, 8b
1Go up set circular prominent bar 14
1, 14
2On, therefore in hot environment atmosphere, use, at circular prominent bar 14
1, 14
2On do not produce permanent deformation.
As mentioned above, the mechanical seal device of the invention is that a side of urceolus is fixed on the axle support of turning axle, and seal ring is contained in the outside of the opposite side of urceolus, the rubber bellows is contained in the centre of a side and above-mentioned urceolus one side of seal ring; With spring with form on the rubber bellows two ends facing to a side of convex shoulder connect airtight with seal ring one side respectively and with a side sealing of urceolus, owing on a side of above-mentioned seal ring and a side, form circular recessed at above-mentioned urceolus, and a side pressure that makes above-mentioned convex shoulder is connected on the side of seal ring and connects airtight on a side of urceolus, and the part that makes a side of convex shoulder is nipped in above-mentioned circular recessed, the circular prominent bar on circular recessed wall is connected airtight in the formation side on a side of above-mentioned convex shoulder, thereby connected airtight comparing with the conventional device on the opposite side that connects airtight at urceolus on the seal ring with the former front-end edge of the prominent bar of ring-type that forms on convex shoulder one side that do not make, can seal more infalliblely.
Again because under above-mentioned sealing state, do not make compression force on circular prominent bar set on the side of above-mentioned convex shoulder, even in hot environment atmosphere, use, on above-mentioned circular prominent bar, can not produce permanent deformation yet, thereby can keep initial sealing for a long time, can improve reliability.
Claims (1)
1. mechanical seal device, it is that a side of urceolus is fixed on the axle support of turning axle, seal ring is contained on the outside of opposite side of urceolus, the rubber bellows is contained between the side of side of above-mentioned seal ring and urceolus, with spring one side of the convex shoulder vis-a-vis that forms on the rubber bellows two ends is connected airtight on the side of seal ring and on the side of urceolus respectively, it is characterized in that on a side of side of above-mentioned seal ring and urceolus, forming circular recessed respectively, and a side pressure that makes above-mentioned convex shoulder is connected on the side of side of above-mentioned seal ring and urceolus, and make a side of convex shoulder, partly nip in above-mentioned circular recessed, the circular prominent bar on circular recessed wall is connected airtight in the formation side on a side of above-mentioned convex shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95104266 CN1134525A (en) | 1995-04-25 | 1995-04-25 | Mechanical sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95104266 CN1134525A (en) | 1995-04-25 | 1995-04-25 | Mechanical sealing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1134525A true CN1134525A (en) | 1996-10-30 |
Family
ID=5075063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95104266 Pending CN1134525A (en) | 1995-04-25 | 1995-04-25 | Mechanical sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1134525A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406790C (en) * | 2001-08-31 | 2008-07-30 | 伊格尔工业股份有限公司 | Mechanical seal device |
| US8753079B2 (en) | 2009-03-16 | 2014-06-17 | Vulco S.A. | Mechanical seal |
-
1995
- 1995-04-25 CN CN 95104266 patent/CN1134525A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406790C (en) * | 2001-08-31 | 2008-07-30 | 伊格尔工业股份有限公司 | Mechanical seal device |
| US8753079B2 (en) | 2009-03-16 | 2014-06-17 | Vulco S.A. | Mechanical seal |
| US9206906B2 (en) | 2009-03-16 | 2015-12-08 | Vulco, S.A. | Adjustable mechanical seal |
| US9249885B2 (en) | 2009-03-16 | 2016-02-02 | Vulco, S. A. | Mechanical seal with improved seal assembly |
| US9593777B2 (en) | 2009-03-16 | 2017-03-14 | Vulco S.A. | Mechanical seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |