CN201973242U - Packing sealing device - Google Patents
Packing sealing device Download PDFInfo
- Publication number
- CN201973242U CN201973242U CN2011200664837U CN201120066483U CN201973242U CN 201973242 U CN201973242 U CN 201973242U CN 2011200664837 U CN2011200664837 U CN 2011200664837U CN 201120066483 U CN201120066483 U CN 201120066483U CN 201973242 U CN201973242 U CN 201973242U
- Authority
- CN
- China
- Prior art keywords
- packing
- rotating shaft
- rotating axis
- sealing
- sealing device
- 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 - Lifetime
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- Sealing Devices (AREA)
Abstract
The utility model relates to a sealing device such as a water pump, a valve and the like used in fluid machinery, in particular to a packing sealing device used between a machine body and a rotating axis. The packing sealing device is used for preventing fluid from leaking towards the atmosphere from a liquid sealing area and comprises a packing, a rotating axis and a sealing seat sheathed on the rotating axis, wherein the rotating axis is provided with steps, a copper bush used for clamping the packing is arranged at one side of the rotating axis, close to the atmosphere area, the steps and the copper bush on the rotating axis are in clearance fit with the inner wall of the sealing seat to form a closed space, and the packing is filled in the closed space. For the packing sealing device, the problem of being incapable of well and stably sealing an axis of the existing packing sealing device can be effectively solved by arranging the steps on the rotating axis.
Description
Technical field
The utility model relates to a kind of fluid machinery that is used for, and 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.
The model utility content
The technical problems to be solved in the utility model is: solve the technical problem that existing stuffing seal can not carry out good and stable shaft sealing to axle.The utility model 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 technological scheme that its technical problem that solves the utility model adopts 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 beneficial effects of the utility model are: this stuffing seal, and 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 utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the specific embodiment of stuffing seal of the present utility model.
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 utility model is described in further detail now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The specific embodiment of stuffing seal of the present utility model 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 utility model 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 model utility technological thought.The technical scope of this model utility 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 |
|---|---|---|---|
| CN2011200664837U CN201973242U (en) | 2011-03-15 | 2011-03-15 | Packing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200664837U CN201973242U (en) | 2011-03-15 | 2011-03-15 | Packing sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973242U true CN201973242U (en) | 2011-09-14 |
Family
ID=44578345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200664837U Expired - Lifetime CN201973242U (en) | 2011-03-15 | 2011-03-15 | Packing sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973242U (en) |
-
2011
- 2011-03-15 CN CN2011200664837U patent/CN201973242U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |