CN102943884A - Non-contact labyrinth type rotating seal device - Google Patents
Non-contact labyrinth type rotating seal device Download PDFInfo
- Publication number
- CN102943884A CN102943884A CN 201210472471 CN201210472471A CN102943884A CN 102943884 A CN102943884 A CN 102943884A CN 201210472471 CN201210472471 CN 201210472471 CN 201210472471 A CN201210472471 A CN 201210472471A CN 102943884 A CN102943884 A CN 102943884A
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- groove
- running shaft
- container
- water
- annular
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Abstract
The invention relates to a non-contact labyrinth type rotating seal device which comprises a container and at least one rotating shaft. A ring-shaped blade is arranged on the rotating shaft and rotates with the rotating shaft; a ring-shaped groove is arranged on the container, and a discharging hole is opened at the bottom of the groove; and the ring-shaped blade on the rotating shaft is arranged in the ring-shaped groove in a non-contact mode, and a gap between the ring-shaped blade and the ring-shaped groove forms a labyrinth type seal.
Description
Technical field
The present invention relates to a kind of contactless mazy type rotating sealing device.
Background technique
In many equipment that need to cool off, such as: the water-cooling type permanent-magnet speed governor, because conductor disc can be generated heat, therefore need cooling, often adopt the water-cooled mode of spray, can produce splashing of water in the container, then flow to container bottom, do not take seal approach at the running shaft place, water can flow to the container outside along running shaft.The mode that prevents leaked liquid at the running shaft place commonly used is seal ring, on one side seal ring is fixed on the container, another side contacts with running shaft, to form confined space and to produce sealing effect at internal tank.Seal ring causes the lost of life of seal ring because long-term and running shaft friction produce wearing and tearing.Thereby affect the normal use of equipment, cause the user to produce loss because of shutdown maintenance.
The invention provides a kind of contactless mazy type rotating sealing device, can effectively overcome above-mentioned shortcoming.
Summary of the invention
A kind of contactless mazy type rotating sealing device, it comprises a container and at least one running shaft; Have annular blade on the running shaft, it rotates with running shaft; Have annular groove on the container, have discharge orifice at the bottom position of groove; Annular blade on the running shaft contactlessly places annular groove, and itself and groove walls consist of labyrinth sealing.
The water that splashes in the container is at first beaten on the internal layer annular blade of groove walls and running shaft, during blade rotary, water is thrown on the inwall of inner layer ring connected in star, and flows to annular groove bottom along the groove inwall, is discharged in the container through the discharge orifice of the bottom position of groove.There is small part water can continue to beat at the middle level of running shaft annular blade, during blade rotary, water is thrown on the inwall of middle level annular groove, and flow to annular groove bottom along the groove inwall, be discharged to the bottom of internal layer groove through the discharge orifice of the bottom position of middle level groove, be discharged in the container with the water of internal layer bottom portion of groove.There is few part water can continue dozen outer annular blade at running shaft, during blade rotary, water is thrown on the inwall of outer annular groove, and flow to annular groove bottom along the groove inwall, be discharged to the bottom of middle level groove through the discharge orifice of the bottom position of outer groove, be discharged to the bottom of internal layer groove with the water of middle level bottom portion of groove, and be discharged in the container with the water of internal layer bottom portion of groove.Perhaps substantially do not have water to get on the outer blade, at this moment reached sealing effect.
Advantage of the present invention: running shaft and container are contactless, can not produce the fault that causes shutdown maintenance because of ring wear.
The number of annular blade and annular groove can arrange as required, and the present invention is not construed as limiting.
Description of drawings
Accompanying drawing 1 is the contactless mazy type rotating sealing device of the present invention schematic diagram
Embodiment
With reference to accompanying drawing 1
Accompanying drawing 1 is a kind of contactless mazy type rotating sealing device schematic diagram of the present invention, running shaft (1) places in the container (2), the usefulness of annular blade (3) is fixed on the running shaft (1), interior three layers of blade placed respectively in outer interior three layers of groove of annular groove (4) during annular blade (3) was outer, the bottom of three annular grooves (4) is provided with three discharge orifices (5), the bottom of three annular grooves (4) from outside to inside order reduces, so that current are smooth and easy.The water that in container (2), splashes, at first beat on the internal layer annular blade (3) of internal layer groove (4) wall and running shaft, during blade (3) rotation, water is thrown on the inwall of inner layer ring connected in star (4), and flow to annular groove (4) bottom along groove (4) inwall, be discharged in the container through the discharge orifice (5) of the bottom position of groove (4).There is small part water can continue dozen middle level in running shaft annular blade (3), during blade (3) rotation, water is thrown on the middle level inwall of annular groove (4), and flow to annular groove (4) bottom along groove (4) inwall, be discharged to the internal layer bottom of groove (4) through the discharge orifice (5) of the middle level bottom position of groove (4), be discharged in the container (2) with the water of groove (4) internal layer bottom.There is few part water can continue dozen annular blade (3) skin at running shaft, during blade (3) rotation, water is thrown on the outer inwall of annular groove (4), and flow to annular groove (4) bottom along groove (4) inwall, be discharged to the bottom of middle level groove (4) through the discharge orifice of the outer bottom position of groove (4), be discharged to the internal layer bottom of groove (4) with the water of bottom, groove (4) middle level, and be discharged in the container with the water of groove (4) internal layer bottom.Perhaps substantially do not have water to get on the skin of blade (3), at this moment reached sealing effect.The water surface site of the water of container bottom (6) should not be higher than the extreme lower position of discharge orifice (5), blows back into annular groove (4) to prevent water (6).The quantity of running shaft (1) does not limit, and the present embodiment is only done the special case explanation.The running shaft of the present embodiment (1) is horizontal positioned, and it is the situation of vertically placing that the present invention can be used for running shaft (1) equally, and the present invention does not limit.
Claims (1)
1. contactless mazy type rotating sealing device, it comprises: a container and at least one running shaft; Have annular blade on the running shaft, it rotates with running shaft; Have annular groove on the container, have discharge orifice at the bottom position of groove; Annular blade on the running shaft contactlessly places annular groove, and the gap between itself and the groove consists of labyrinth sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210472471 CN102943884A (en) | 2012-11-18 | 2012-11-18 | Non-contact labyrinth type rotating seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210472471 CN102943884A (en) | 2012-11-18 | 2012-11-18 | Non-contact labyrinth type rotating seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102943884A true CN102943884A (en) | 2013-02-27 |
Family
ID=47726853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210472471 Pending CN102943884A (en) | 2012-11-18 | 2012-11-18 | Non-contact labyrinth type rotating seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102943884A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855944A (en) * | 2021-03-10 | 2021-05-28 | 重庆浦仁达科技有限公司 | Sealing structure of rotating shaft |
-
2012
- 2012-11-18 CN CN 201210472471 patent/CN102943884A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855944A (en) * | 2021-03-10 | 2021-05-28 | 重庆浦仁达科技有限公司 | Sealing structure of rotating shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130227 |