CN102182828A - Packing sealing device - Google Patents
Packing sealing device Download PDFInfo
- Publication number
- CN102182828A CN102182828A CN2011100612396A CN201110061239A CN102182828A CN 102182828 A CN102182828 A CN 102182828A CN 2011100612396 A CN2011100612396 A CN 2011100612396A CN 201110061239 A CN201110061239 A CN 201110061239A CN 102182828 A CN102182828 A CN 102182828A
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- China
- Prior art keywords
- packing
- sealing device
- rotating shaft
- revolving shaft
- sealing
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- 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.)
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Abstract
The invention relates to a sealing device applied to fluid machinery such as a water pump, a valve and the like, particularly to a packing sealing device used between a machine body and a revolving shaft. The packing sealing device can prevent fluid from leaking from a seal liquid region to an atmosphere region. The packing sealing device comprises a packing, a revolving shaft and a sealing base sleeved on the revolving shaft, wherein the revolving shaft is provided with steps, a cooper sheath used for clamping the packing is arranged on one side of the air region adjacent to the revolving shaft, the steps of the revolving shaft and the copper sheath are in clearance fit with the inner wall of the sealing base to form a closed space which is filled with the packing. Since the revolving shaft of the packing sealing device is provided the steps, the problem that the traditional packing sealing device cannot perform good and stable shaft sealing on a shaft can be effectively solved.
Description
Technical field
The present invention relates to a kind of fluid machinery that is used for, for example the seal arrangement of water pump, valve etc. relates in particular to the stuffing seal of using between a kind of body and the axle.
Background technique
Stuffing seal is widely used in such as in the fluid machineries such as pump, valve.The stuffing seal that uses adopts the gland type stuffing seal mostly at present, it comprises rotating shaft, sealing seat, Gland and main engine body etc., rotating shaft runs through main engine body, extend to atmosphere zone by the sealing liquid zone, sealed socket sleeve be contained in rotating shaft with and on parts on, and and Gland and main engine body between form an airtight filling space, filler is filled in the confined space, Gland compresses filler by bolt, reaches sealing effect.During work, because rotating shaft is constantly rotated, filler contacts again closely with rotating shaft, after having used a period of time, the continuous friction of filler and rotating shaft will cause wearing and tearing, will form the gap between filler and commentaries on classics are taken out, and fluid will flow into atmosphere zone from the sealing liquid zone by the gap.And wearing and tearing always have, could guarantee good and stable sealing effect so need often to change filler, so not only time-consuming but also expensive.
Summary of the invention
The technical problem to be solved in the present invention is: solve the technical problem that existing stuffing seal can not carry out good and stable shaft sealing to axle.The invention provides a kind of stuffing seal, it is by being provided with step in rotating shaft, when the sealing liquid zone has fluid to reveal, fluid need flow through the step place earlier could flow into the packing seal space, so from low to high mobile of fluid is the comparison difficulty, even filler has slight wearing and tearing like this, fluid also is difficult to flow into atmosphere zone from the sealing liquid zone, has realized good and stable shaft sealing effect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of stuffing seal, be used to prevent that fluid from revealing to atmosphere zone from the sealing liquid zone, comprise filler, rotating shaft and be sleeved on sealing seat in the rotating shaft, has step in the described rotating shaft, side near atmosphere zone in the rotating shaft is equipped with the copper sheathing that is used to clamp filler, the inwall Spielpassung of step in the rotating shaft and copper sheathing and sealing seat forms confined space, and described filler places in the confined space.
The invention has the beneficial effects as follows: this stuffing seal, by step is set in rotating shaft, make fluid be difficult for entering into the packing seal space through step from the sealing liquid zone, effectively stopped the leakage of fluid, realized good and stable shaft sealing effect.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the specific embodiment of stuffing seal of the present invention.
Among the figure: 1, rotating shaft, 2, sealing seat, 3, step, 4, filler, 5, copper sheathing, 6, the sealing liquid zone,
7, atmosphere zone, 8, confined space.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic representation of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
The specific embodiment of stuffing seal of the present invention as shown in Figure 1, be used to prevent that fluid from revealing from sealing liquid zone 6 to atmosphere zone 7, comprise filler 4, rotating shaft 1 and be sleeved on sealing seat 2 in the rotating shaft, has step 3 in the rotating shaft 1, side near atmosphere zone 7 in the rotating shaft 1 is equipped with the copper sheathing 5 that is used to clamp filler, step 3 in the rotating shaft 1 and copper sheathing 5 form confined space 8 with the inwall Spielpassung of sealing seat 2, and filler 4 places in the confined space 8.
Filler in the stuffing seal owing to the continuous friction with rotating shaft can cause wearing and tearing, so just is easy to generate leakage after a period of time of having worked, can not reach good, stable sealing effect.In rotating shaft, process a step, when having fluid to reveal in the sealing liquid zone, fluid need flow through step earlier and just can flow in the packing seal space, so from low to high mobile of fluid is the comparison difficulty, so even filler has slight wearing and tearing, fluid also is difficult to flow into atmosphere zone from the sealing liquid zone, has so just realized good and stable shaft sealing effect.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (1)
1. stuffing seal, be used to prevent that fluid from revealing to atmosphere zone (7) from sealing liquid zone (6), comprise filler (4), rotating shaft (1) and be sleeved on sealing seat (2) in the rotating shaft, it is characterized in that: have step (3) in the described rotating shaft (1), the side that rotating shaft (1) is gone up near atmosphere zone (7) is equipped with the copper sheathing (5) that is used to clamp filler, step (3) in the rotating shaft (1) and copper sheathing (5) form confined space (8) with the inwall Spielpassung of sealing seat (2), and described filler (4) places in the confined space (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100612396A CN102182828A (en) | 2011-03-15 | 2011-03-15 | Packing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100612396A CN102182828A (en) | 2011-03-15 | 2011-03-15 | Packing sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102182828A true CN102182828A (en) | 2011-09-14 |
Family
ID=44569091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100612396A Pending CN102182828A (en) | 2011-03-15 | 2011-03-15 | Packing sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102182828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106349394A (en) * | 2016-08-30 | 2017-01-25 | 四川北方硝化棉股份有限公司 | Liquid sealing structure and U-shaped nitration machine |
-
2011
- 2011-03-15 CN CN2011100612396A patent/CN102182828A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106349394A (en) * | 2016-08-30 | 2017-01-25 | 四川北方硝化棉股份有限公司 | Liquid sealing structure and U-shaped nitration machine |
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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: 20110914 |