CN203176604U - Embedded type rotary joint - Google Patents
Embedded type rotary joint Download PDFInfo
- Publication number
- CN203176604U CN203176604U CN 201320183724 CN201320183724U CN203176604U CN 203176604 U CN203176604 U CN 203176604U CN 201320183724 CN201320183724 CN 201320183724 CN 201320183724 U CN201320183724 U CN 201320183724U CN 203176604 U CN203176604 U CN 203176604U
- Authority
- CN
- China
- Prior art keywords
- movable sealing
- mandrel
- seal ring
- housing
- rotary joint
- 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
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Abstract
Provided is an embedded type rotary joint. The accuracy of hydrostatic testing before the embedded type rotary joint leaves a factory can be guaranteed, a seal ring can be replaced in a using site, and the leakage problem is solved. The embedded type rotary joint comprises a mandrel, wherein the left end of the mandrel is fixedly connected with a three-way elbow through a fixing bolt and a nut, a casing is further sleeved on the mandrel, a movable sealing sleeve is designed at the left end of the casing, a seal ring groove is formed on the inner surface of the movable sealing sleeve, the seal ring is placed in the seal ring groove, the movable sealing sleeve is fixedly connected with the casing through a screw, and the casing is in static sealing connection with the movable sealing sleeve through a sealing gasket.
Description
Technical field
The utility model relates to a kind of rotating sealing device, relates in particular to a kind of flush type swivel joint.
Background technique
The swivel joint that uses is used for the rotary seal of steel mill's continuous casting line middle roller cooling water at present.Rotating speed is generally at 10-60 rev/min, pressure 0.3-0.6Mmpa.Its structure is mainly by three-way elbow, mandrel, housing, static and dynamic sealing ring, and spring and seal ring are formed (as shown in Figure 1), and primary seal is the mechanical seal principle.The static and dynamic sealing ring fits together by the elastic force of spring, forms rotary seal.It is dustproof that the seal ring of housing high order end plays two effect: a.; B. when losing efficacy, mechanical seal plays the effect of rotary seal cooling water.But also there is defective in this kind design, and when doing the hydrostatic test before dispatching from the factory, mechanical seal is partly leaked, because the existence of this seal ring is not easy to be found, and during online use, the seal ring that can't more renew after the wearing and tearing.
Summary of the invention
The purpose of this utility model provide a kind of can guarantee to dispatch from the factory before hydrostatic test accuracy and can use on-the-spot seal ring, the flush type swivel joint that addresses the leakage concern changed.
For achieving the above object, the technical solution adopted in the utility model is: a kind of flush type swivel joint, comprise mandrel, the left end of mandrel is fixedly connected with three-way elbow by fixing bolt and nut, also be with housing on the mandrel, it is characterized in that: the left end design of housing has the movable sealing cover, the internal surface of movable sealing cover has o-ring groove, be placed with seal ring in the o-ring groove, fixedly connected by screw between movable sealing cover and the housing, housing be connected by the sealing gasket static seal between movable sealing overlaps.
The utility model has the advantages of and be: because this structure of the present utility model, so use the utility model can guarantee the accuracy of the hydrostatic test, improved the up-to-standard rate that the mechanical sealing part branch dispatches from the factory, and can onlinely address the leakage concern, using effect is good.
Description of drawings
Fig. 1 is the structural representation of prior art swivel joint;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the another kind of structural representation of Fig. 2.
In the accompanying drawing: 1, three-way elbow; 2, mandrel; 3, screw; 4, movable sealing cover; 5, o-ring groove; 6, seal ring; 7, housing; 8, fixing bolt.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
The utility model is shown in Fig. 2,3, a kind of flush type swivel joint, comprise mandrel 2, the left end of mandrel 2 is fixedly connected with three-way elbow 1 by fixing bolt 8 and nut, also be with housing 7 on the mandrel 2, it is characterized in that: the left end design of housing 7 has movable sealing cover 4, the internal surface of movable sealing cover 4 has o-ring groove 5, be placed with seal ring 6 in the o-ring groove 5, fixedly connected by screw 3 between movable sealing cover 4 and the housing 7, housing 7 be connected by the sealing gasket static seal between movable sealing overlaps 4.
When using the utility model, when before dispatching from the factory, doing the hydrostatic test, movable sealing cover and seal ring are not installed earlier, after with screw movable sealing cover and seal ring being installed after the pass the test, delivery.
When finding to leak in the online use, can unscrew anchor bolt nut, take off three-way elbow, change seal ring behind the screw of dismantling, so just can onlinely address the leakage concern, using effect is good.
Claims (1)
1. flush type swivel joint, comprise mandrel (2), the left end of mandrel (2) is fixedly connected with three-way elbow (1) by fixing bolt (8) and nut, also be with housing (7) on the mandrel (2), it is characterized in that: the left end design of housing (7) has movable sealing cover (4), the internal surface of movable sealing cover (4) has o-ring groove (5), be placed with seal ring (6) in the o-ring groove (5), fixedly connected by screw (3) between movable sealing cover (4) and the housing (7), be connected by the sealing gasket static seal between housing (7) and the movable sealing cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320183724 CN203176604U (en) | 2013-04-12 | 2013-04-12 | Embedded type rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320183724 CN203176604U (en) | 2013-04-12 | 2013-04-12 | Embedded type rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176604U true CN203176604U (en) | 2013-09-04 |
Family
ID=49073299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320183724 Expired - Fee Related CN203176604U (en) | 2013-04-12 | 2013-04-12 | Embedded type rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050328A (en) * | 2018-01-25 | 2018-05-18 | 沈阳人和机械制造有限公司 | A kind of non-maintaining rotary joint |
-
2013
- 2013-04-12 CN CN 201320183724 patent/CN203176604U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050328A (en) * | 2018-01-25 | 2018-05-18 | 沈阳人和机械制造有限公司 | A kind of non-maintaining rotary joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20170412 |