CN205715670U - A kind of shaft sealing device - Google Patents
A kind of shaft sealing device Download PDFInfo
- Publication number
- CN205715670U CN205715670U CN201620229333.6U CN201620229333U CN205715670U CN 205715670 U CN205715670 U CN 205715670U CN 201620229333 U CN201620229333 U CN 201620229333U CN 205715670 U CN205715670 U CN 205715670U
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- sealing
- sealing ring
- elastomer
- gland
- seal casinghousing
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Abstract
The utility model discloses a kind of shaft sealing device, including rotating shaft, rotating shaft is socketed with sealing gland successively, first sealing ring, elastomer, second sealing ring and seal casinghousing, seal casinghousing covers on the first sealing ring, the outside of elastomer and the second sealing ring and and sealing gland, the wallboard of body is fixing to be connected, elastomer and rotating shaft interference fit, first, second sealing ring is fixing with elastomer to be connected, elastomer is driven during axis of rotation, first sealing ring and the second sealing ring rotate, between first sealing ring and the first wearing plate, end face is slidably matched, second sealing plate is slidably matched with the second wearing plate.Achieving end face seal between the end face of first, second sealing ring and seal casinghousing, sealing gland, sealing area is bigger, good sealing effect, beating even if rotating shaft produces, end face seal still can ensure that sealing effectiveness, and sealing area is big, the most wear-resisting, reduce the frequency of maintenance.
Description
Technical field
This utility model relates to a kind of sealing device, particularly relates to a kind of shaft sealing device, belongs to grain, feed-processing equipment technical field.
Background technology
Traditional shaft end seal mode includes material filling type, oil seal type, Mechanical Sealed Type, also have some extraordinary sealing structures etc., but it is because the sealants of feedstuff industry based on solid dust, and be less able to ensure that sealing member obtains enough lubrications, add into the restriction of present aspect, very multi-sealing structure inapplicable, present feedstuff industry applies most sealing structures to be packing seal structure.
Packing seal structure includes main shaft, wallboard, filler seat, filler and gland.Main shaft passes equipment wallboard, and also cross filler seat, filler seat is bolted on outside equipment wallboard, is a ring cavity outside filler seat, and various fillers are received in cavity.Gland is bolted on filler seat, by the annular projection of gland, extrudes filler, makes filler laterally deform, and holds main shaft tightly, forms radial seal.
During work, main axis, and and filler between produce relative motion, because main shaft hardness is higher than filler, after a period of time, filler there will be generation space between abrasion, and main shaft, and material enters wherein, makes situation more deteriorate, and can wear spindle surface.Owing to the elasticity of filler is very poor, it is impossible to form self compensation, need artificially to fasten gland bolt, make filler transversely deforming again, produce sealing effectiveness.
Feedstuff industry additionally exists substantial amounts of slender axles structure, such as: mixer main shaft, quality-adjusting device main shaft, auger main shaft etc., these slender axles the most all can have slightly beats and play, axle beat and play can strengthen the gap between filler and main shaft, and filler resilience is poor, can not quickly fill up these gaps, cause tiny material particles to enter this gap, thus greatly shorten gland sealed effective storage life.
Utility model content
The purpose of this utility model is the deficiency existed for prior art, it is provided that a kind of good sealing effect, little by rotating shaft jumping effect, the shaft sealing device of maintenance period length.
For achieving the above object, this utility model shaft sealing device the technical scheme is that
A kind of shaft sealing device, including rotating shaft, described rotating shaft is socketed with sealing gland successively, first sealing ring, elastomer, second sealing ring and seal casinghousing, seal casinghousing covers on the first sealing ring, the outside of elastomer and the second sealing ring and and sealing gland, the wallboard of body is fixing to be connected, elastomer and rotating shaft interference fit, first, second sealing ring is fixing with elastomer to be connected, first sealing ring is slidably connected with sealing gland, second sealing ring is slidably connected with seal casinghousing, elastomer is driven during axis of rotation, first sealing ring and the second sealing ring rotate, between first sealing ring and the first wearing plate, end face is slidably matched, second sealing plate is slidably matched with the second wearing plate.Axis of rotation drives first, second sealing ring and elastomer to rotate, between end face and the sealing gland of the first sealing ring, between the end face of the second sealing ring and seal casinghousing, achieve end face seal, sealing area is bigger, good sealing effect, beating even if rotating shaft produces, end face seal still can ensure that sealing effectiveness, and sealing area is big, the most wear-resisting, reduce the frequency of maintenance.
The first wearing plate it is provided with between sealing gland and the first sealing ring.
The second wearing plate it is provided with between seal casinghousing and the second sealing ring.
Seal casinghousing cooperates with sealing gland, uses bolt-through seal casinghousing, sealing gland and wallboard to fix and is connected.
The first sealing gasket it is provided with between sealing gland and wallboard.
It is provided with the first sealing gasket between sealing gland and wallboard, between seal casinghousing and sealing gland, is provided with the second sealing gasket.
Described sealing gland, the first sealing ring, elastomer, the second sealing ring and seal casinghousing is arranged on the outside of wallboard.
Described elastomer is rubber.
Gases at high pressure or grease it is filled with in seal casinghousing.
Described sealing gland, the first sealing ring, elastomer, the second sealing ring and seal casinghousing uses the outside that opposite opened Split type structure is arranged on rotating shaft from the both sides of rotating shaft.
This utility model compared with prior art, has the advantage that
It is major seal faces between first, second sealing ring and sealing gland, seal casinghousing, between two parts and relatively rotate the purpose simultaneously keeping fitting tightly to reach to seal, it is also possible in seal casinghousing, be filled with gases at high pressure or grease carrys out lift-off seal effect.This utility model is converted into flat seal shaft circumference face seal, such that it is able to compensate beating of rotating shaft, eliminates the impact beated on sealing, protects main shaft surface, and range of application is wider, seals more stable, is especially suitable for the sealing of solid tiny particle.Elastomer is fixed on axle by interference fit, it is not necessary to countershaft be adjusted, and easy for installation, later maintenance is simple.
Accompanying drawing explanation
Fig. 1 is shaft sealing device structural representation.
Fig. 2 is the enlarged drawing in Fig. 1 at A.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with this utility model, it should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model, after having read this utility model, those skilled in the art all fall within the application claims limited range to the amendment of the various equivalent form of values of the present utility model.
A kind of shaft sealing device as illustrated in fig. 1 and 2, including rotating shaft 1, rotating shaft 1 runs through wallboard 2, sealing gland 3 it is socketed with successively in the rotating shaft outside wallboard 2, first wearing plate 4, first sealing ring 5, elastomer 6, second sealing ring 7, second wearing plate 8 and seal casinghousing 9, seal casinghousing 9 covers on the first wearing plate, first sealing ring, elastomer, the outside of the second sealing ring and the second wearing plate is fixing with sealing gland 3 to be connected, seal casinghousing 9 cooperates with sealing gland 3, bolt 10 is used to run through seal casinghousing, sealing gland is fixing with wallboard 2 to be connected, the first sealing gasket 11 it is provided with between sealing gland and wallboard, the second sealing gasket 12 it is provided with between seal casinghousing and sealing gland.nullThe side that sealing gland 3 faces toward the first wearing plate is provided with prototype groove 31 and fixes the first wearing plate 4 for installing，Second wearing plate interlocking is fixing with seal casinghousing in the inner side of seal casinghousing to be connected，Elastomer 6 and rotating shaft interference fit，First、Second sealing ring is fixing with elastomer to be connected，First sealing ring and the first wearing plate are slidably connected，Second sealing ring and the second wearing plate are slidably connected，Elastomer is driven during axis of rotation、First sealing ring and the second sealing ring rotate，Between first sealing ring and the first wearing plate, end face is slidably matched，Second sealing plate is slidably matched with the second wearing plate，Axis of rotation drives first、Second sealing ring and elastomer rotate，First、The end face of the second sealing ring and first、End face seal is achieved between second wearing plate，Sealing area is bigger，Good sealing effect，Beat even if rotating shaft produces，End face seal still can ensure that sealing effectiveness，Sealing area is big，The most wear-resisting，Reduce the frequency of maintenance.In order to improve sealing effectiveness, in seal casinghousing, it is filled with gases at high pressure or grease.Elastomer is rubber or the complex based on rubber.
Sealing gland the 3, first wearing plate the 4, first sealing ring 5, elastomer the 6, second sealing ring the 7, second wearing plate 8 and seal casinghousing 9 all can use split split-type structural to be arranged on the outside of rotating shaft from the both sides of rotating shaft, reduce installation difficulty.
In the course of the work, main axis, and drive elastomer to rotate together, owing to elastomer and first, second sealing ring interfix, first, second sealing ring also rotates together with main shaft；First wearing plate and the second wearing plate are fixed with sealing gland and seal casinghousing respectively, and seal casinghousing and sealing gland are fixed on wallboard, and first, second wearing plate remains static；There is relative motion between first, second sealing ring and first, second wearing plate, define sealing plane；Seal casinghousing and sealing gland define an airtight cavity, this cavity axial dimension is less than first, second sealing ring and the gross thickness of elastomer, after seal casinghousing and sealing gland Guan Bi are bolted tension, elastomer is compressed, first, second sealing ring is produced pressure, makes first, second sealing ring and first, second wearing plate tightly fit, form good sealing surface, small the beating of main shaft appearance, sealing surface can will not be produced any impact by elastomeric absorbent, be improve sealing effectiveness.
Claims (10)
1. a shaft sealing device, including rotating shaft, it is characterized in that: described rotating shaft is socketed with sealing gland successively, first sealing ring, elastomer, second sealing ring and seal casinghousing, seal casinghousing covers on the first sealing ring, the outside of elastomer and the second sealing ring and and sealing gland, the wallboard of body is fixing to be connected, elastomer and rotating shaft interference fit, first, second sealing ring is fixing with elastomer to be connected, first sealing ring is slidably connected with sealing gland, second sealing ring is slidably connected with seal casinghousing, elastomer is driven during axis of rotation, first sealing ring and the second sealing ring rotate, between first sealing ring and the first wearing plate, end face is slidably matched, second sealing plate is slidably matched with the second wearing plate.
Shaft sealing device the most according to claim 1, it is characterised in that: it is provided with the first wearing plate between sealing gland and the first sealing ring.
Shaft sealing device the most according to claim 1, it is characterised in that: it is provided with the second wearing plate between seal casinghousing and the second sealing ring.
Shaft sealing device the most according to claim 1, it is characterised in that: seal casinghousing cooperates with sealing gland, uses bolt-through seal casinghousing, sealing gland and wallboard to fix and is connected.
Shaft sealing device the most according to claim 1, it is characterised in that: it is provided with the first sealing gasket between sealing gland and wallboard.
Shaft sealing device the most according to claim 1, it is characterised in that: it is provided with the first sealing gasket between sealing gland and wallboard, between seal casinghousing and sealing gland, is provided with the second sealing gasket.
7. according to the shaft sealing device described in claim 1 to 6 any one, it is characterised in that: described sealing gland, the first sealing ring, elastomer, the second sealing ring and seal casinghousing are arranged on the outside of wallboard.
8. according to the shaft sealing device described in claim 1 to 6 any one, it is characterised in that: described elastomer is rubber.
9. according to the shaft sealing device described in claim 1 to 6 any one, it is characterised in that: in seal casinghousing, it is filled with gases at high pressure or grease.
10. according to the shaft sealing device described in claim 1 to 6 any one, it is characterised in that: described sealing gland, the first sealing ring, elastomer, the second sealing ring and seal casinghousing uses the outside that opposite opened Split type structure is arranged on rotating shaft from the both sides of rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229333.6U CN205715670U (en) | 2016-03-23 | 2016-03-23 | A kind of shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229333.6U CN205715670U (en) | 2016-03-23 | 2016-03-23 | A kind of shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715670U true CN205715670U (en) | 2016-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620229333.6U Active CN205715670U (en) | 2016-03-23 | 2016-03-23 | A kind of shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205715670U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204460A (en) * | 2016-12-20 | 2018-06-26 | 重庆乐迪机车车辆配件有限公司 | Car rotation movable sealer |
| CN115163933A (en) * | 2022-05-30 | 2022-10-11 | 江门市鑫辉特种密封科技有限公司 | Double-end-face feeding and discharging pipe sealing device |
-
2016
- 2016-03-23 CN CN201620229333.6U patent/CN205715670U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204460A (en) * | 2016-12-20 | 2018-06-26 | 重庆乐迪机车车辆配件有限公司 | Car rotation movable sealer |
| CN108204460B (en) * | 2016-12-20 | 2023-11-24 | 东莞市华研新材料科技有限公司 | Movable sealing device for automobile rotating shaft |
| CN115163933A (en) * | 2022-05-30 | 2022-10-11 | 江门市鑫辉特种密封科技有限公司 | Double-end-face feeding and discharging pipe sealing device |
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| GR01 | Patent grant |