CN204573094U - A kind of stuffing seal of automatic centering - Google Patents
A kind of stuffing seal of automatic centering Download PDFInfo
- Publication number
- CN204573094U CN204573094U CN201520134220.3U CN201520134220U CN204573094U CN 204573094 U CN204573094 U CN 204573094U CN 201520134220 U CN201520134220 U CN 201520134220U CN 204573094 U CN204573094 U CN 204573094U
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- CN
- China
- Prior art keywords
- stuffing box
- base plate
- platen
- intermediate connecting
- connecting ring
- 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.)
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Abstract
A stuffing seal for automatic centering, comprises Stuffing box, and its outer surface is spheric structure; Also comprise base plate, base plate side is provided with intermediate connecting ring by pad, and the outside of intermediate connecting ring is close to and is provided with platen, and intermediate connecting ring is relative inner ball surface with the internal surface of platen, the internal surface of intermediate connecting ring and platen and the outer surface snug fit of Stuffing box; Between Stuffing box and platen, stop pin is installed; The opposite side of base plate is provided with interior adapter ring, and platen, intermediate connecting ring, pad, base plate are together with being bolted in the middle part of interior adapter ring, and base plate is fixed on assembling shell; Stuffing box inside is filler, and the outside of Stuffing box is provided with Gland by fastening piece.Stuffing box can when the axis of running shaft deflects, the axle center of automatic adjustment Stuffing box, makes Stuffing box remain on coaxial state with running shaft all the time, thus ensures that filler and rotating shaft surface are in normal contact condition always, slow down the rate of decay of filler, guarantee sealing effect.
Description
Technical field
The utility model relates to seal arrangement technical field, especially a kind of for the stuffing seal of running shaft with the automatic centering of equipment housing connection place.
Background technique
With in the equipment of running shaft, usually need to adopt packing seal to connect at running shaft with equipment housing connection place, for avoiding gas, liquid or pressed powder inside and outside equipment by running shaft and equipping housing connection place.
The seal arrangement that packing seal is mainly made up of Stuffing box, Gland and filler.Be fastened by bolts Gland, impelling Gland to apply certain extruding force to filler, there is plastic deformation because being squeezed in filler, and rotating shaft surface inner with Stuffing box fits tightly respectively, thus plays seal action.
In normally used stuffing seal, Stuffing box is fixed.This coaxality to the multiple stuffing seals on same running shaft requires higher, has certain restriction for the bending deflection in running shaft running, vibration and beat simultaneously.If exceed this restriction, then the close contact degree of filler and rotating shaft surface reduces, and the effect of sealing will reduce greatly.And, due to the bending deflection of running shaft, the effect of vibration and beat etc., the filler that fits tightly with running shaft usually can be made because of stressed irregular and damage, lose sealing effect.
Model utility content
The applicant, for the shortcoming in above-mentioned existing production technology, provides a kind of stuffing seal of automatic centering, thus makes it reach good sealing effect.
The technological scheme that the utility model adopts is as follows:
A stuffing seal for automatic centering, comprises Stuffing box, and described Stuffing box outer surface is spheric structure; Also comprise base plate, described base plate side is provided with intermediate connecting ring by pad, the outside of described intermediate connecting ring is close to and is provided with platen, and described intermediate connecting ring is relative inner ball surface with the internal surface of platen, the internal surface of described intermediate connecting ring and platen and the outer surface snug fit of Stuffing box; Between described Stuffing box and platen, stop pin is installed; The opposite side of described base plate is provided with interior adapter ring, and all have bolt hole in the middle part of described platen, intermediate connecting ring, pad, base plate and interior adapter ring, and be bolted together, described base plate is fixed on assembling shell; Described Stuffing box inside is filler, and the outside of described Stuffing box is provided with Gland by fastening piece.
Its further technological scheme is:
The 3rd O type circle is provided with between described intermediate connecting ring and Stuffing box;
Be provided with an O type circle and the 2nd O type circle between described base plate and interior adapter ring, a described O type circle and the 2nd O type circle lay respectively at the upper and lower end of bolt hole;
The aperture of described bolt hole is greater than bolt external diameter.
The beneficial effects of the utility model are as follows:
The utility model compact structure, rationally, manufacture and installation is convenient, Stuffing box is mobilizable, can when the axis of running shaft deflects, the axle center of automatic adjustment Stuffing box, makes Stuffing box remain on coaxial state with running shaft all the time, thus ensures that filler and rotating shaft surface are in normal contact condition always, slow down the rate of decay of filler, guarantee sealing effect.
Along with the axial direction of running shaft changes, Stuffing box can adjust automatically, keeps running shaft consistent with the axial direction of Stuffing box, filler is combined with the intimate surface of running shaft all the time, guarantees sealing effect.
Because filler is fitted with the intimate surface of running shaft all the time, effectively reduce filler because of the stressed irregular damage caused.Meanwhile, the filler degree of depth also without the need to very dark, can reduce the size of Stuffing box, reduces amount of filler.
The Combination Design of interior adapter ring, base plate, intermediate connecting ring, platen and larger bolt hole can when rotating shaft axis direction be partially larger, as long as slightly when loose bolt, just can compensate the displacement of Stuffing box further, this just makes the stuffing seal of automatic centering adapt to harsher working environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, base plate; 2, platen; 3, intermediate connecting ring; 4, interior adapter ring; 5, an O type circle; 6, pad; 7, the 2nd O type circle; 8, the 3rd O type circle; 9, Stuffing box; 10, stop pin; 11, filler; 12, Gland.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, the stuffing seal of the automatic centering of the present embodiment, comprises Stuffing box 9, and Stuffing box 9 outer surface is spheric structure; Also comprise base plate 1, base plate 1 side is provided with intermediate connecting ring 3 by pad 6, the outside of intermediate connecting ring 3 is close to and is provided with platen 2, and intermediate connecting ring 3 is relative inner ball surface with the internal surface of platen 2, the internal surface of intermediate connecting ring 3 and platen 2 and the outer surface snug fit of Stuffing box 9; Stop pin 10 is installed between Stuffing box 9 and platen 2; The opposite side of base plate 1 is provided with interior adapter ring 4, and all have bolt hole in the middle part of platen 2, intermediate connecting ring 3, pad 6, base plate 1 and interior adapter ring 4, and be bolted together, base plate 1 is fixed on assembling shell; Stuffing box 9 inside is filler 11, and the outside of Stuffing box 9 is provided with Gland 12 by fastening piece.
The 3rd O type circle 8 is provided with between intermediate connecting ring 3 and Stuffing box 9.
The upper and lower end that one O type circle 5 and the 2nd O type circle the 7, one O type circle 5 and the 2nd O type circle 7 lay respectively at bolt hole is installed between base plate 1 and interior adapter ring 4.Prevent medium from permeating from bolt hole.
The aperture of bolt hole is greater than bolt external diameter.And suitably increase on basis, usual bolt aperture, can realize when loose bolts adjusts the position of platen 2, intermediate connecting ring 3, pad 6 and interior adapter ring 4 a little, drive the position adjustment of Stuffing box 9, compensate the axial direction change of running shaft further.The utility model is made to be applicable to working environment more widely.
Stuffing box 9 outer surface described in the utility model is a spherical structure, and the inner ball surface structure formed with platen and 2 intermediate connecting rings 3 forms a universal head.Running shaft run process in occur certain bending deflection, vibration and beat time, the axial direction of running shaft can change, the Stuffing box 9 of spheric structure will adjust thereupon automatically, keep running shaft consistent with the axial direction of Stuffing box 9, filler is combined with the intimate surface of running shaft all the time, guarantees sealing effect.
The platen 2 of the outer surface of Stuffing box 9 described in the utility model and the internal surface of intermediate connecting ring 3 are close to, and while fixing Stuffing box 9, Stuffing box 9 can also be made to rotate within the specific limits.
The design of the 3rd O type circle 8 described in the utility model, makes to have good seal action between intermediate connecting ring 3 and Stuffing box 9.
The design of stop pin 10 described in the utility model, effectively prevents Stuffing box 9 from rotating together along with running shaft.
The design of Gland 12 described in the utility model, produces extruding force to filler 11, makes filler 11 produce plastic deformation, is close to the inside of Stuffing box 9 and the outer surface of running shaft, forms sealing effect.
The design of the utility model pad 6, effectively prevents medium from revealing between base plate 1 and intermediate connecting ring 3.
More than describing is to explanation of the present utility model, and be not the restriction to model utility, the utility model limited range, see claim, within protection domain of the present utility model, can do any type of amendment.
Claims (4)
1. a stuffing seal for automatic centering, is characterized in that: comprise Stuffing box (9), and described Stuffing box (9) outer surface is spheric structure; Also comprise base plate (1), described base plate (1) side is provided with intermediate connecting ring (3) by pad (6), the outside of described intermediate connecting ring (3) is close to and is provided with platen (2), described intermediate connecting ring (3) is relative inner ball surface with the internal surface of platen (2), the internal surface of described intermediate connecting ring (3) and platen (2) and the outer surface snug fit of Stuffing box (9); Stop pin (10) is installed between described Stuffing box (9) and platen (2); The opposite side of described base plate (1) is provided with interior adapter ring (4), described platen (2), intermediate connecting ring (3), pad (6), base plate (1) and interior adapter ring (4) middle part all has bolt hole, and being bolted together, described base plate (1) is fixed on assembling shell; Described Stuffing box (9) inside is filler (11), and the outside of described Stuffing box (9) is provided with Gland (12) by fastening piece.
2. the stuffing seal of a kind of automatic centering as claimed in claim 1, is characterized in that: be provided with the 3rd O type circle (8) between described intermediate connecting ring (3) and Stuffing box (9).
3. the stuffing seal of a kind of automatic centering as claimed in claim 1, it is characterized in that: be provided with an O type circle (5) and the 2nd O type circle (7) between described base plate (1) and interior adapter ring (4), a described O type circle (5) and the 2nd O type circle (7) lay respectively at the upper and lower end of bolt hole.
4. the stuffing seal of a kind of automatic centering as claimed in claim 1, is characterized in that: the aperture of described bolt hole is greater than bolt external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520134220.3U CN204573094U (en) | 2015-03-10 | 2015-03-10 | A kind of stuffing seal of automatic centering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520134220.3U CN204573094U (en) | 2015-03-10 | 2015-03-10 | A kind of stuffing seal of automatic centering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204573094U true CN204573094U (en) | 2015-08-19 |
Family
ID=53865735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520134220.3U Active CN204573094U (en) | 2015-03-10 | 2015-03-10 | A kind of stuffing seal of automatic centering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204573094U (en) |
-
2015
- 2015-03-10 CN CN201520134220.3U patent/CN204573094U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |