CN206246676U - A kind of rotation axis seal structure - Google Patents
A kind of rotation axis seal structure Download PDFInfo
- Publication number
- CN206246676U CN206246676U CN201621254513.6U CN201621254513U CN206246676U CN 206246676 U CN206246676 U CN 206246676U CN 201621254513 U CN201621254513 U CN 201621254513U CN 206246676 U CN206246676 U CN 206246676U
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- sealing ring
- sealing
- rotation axis
- end seat
- seal structure
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Abstract
The utility model discloses a kind of rotation axis seal structure, for rotation axis seal technical field, including axle bed, rotary shaft on axle bed, the sealing ring gland for being located at the sealing end seat on the outside of axle bed around the rotary shaft and being arranged on by fastener in sealing end seat, suit sealing ring on the rotary shaft is provided with inside sealing end seat, the sealing ring includes being close to the first sealing ring of axle bed and the second sealing ring being located between the first sealing ring and sealing ring gland, in the sealing end seat annular seal space is formed in the first sealing ring and the second sealing interannular, filling lubricant medium in annular seal space.During work, the lubricant medium in annular seal space can produce oil film in the second sealing ring, rotation between centers, play a part of lubrication and reduce abrasion.The lubricant medium in annular seal space can block sealed medium to exosmosis simultaneously.Totally solve sealing and two principal elements of anti-attrition.Improve leakage efficiency.
Description
Technical field
The utility model is used for rotation axis seal technical field, more particularly to a kind of rotation axis seal structure.
Background technology
The effect of sealing is to prevent medium from revealing, and the sealing structure form for rotating shaft end determines tightness, common rotation
The sealing structure form at rotating shaft end includes that seal with elastometic washer, packing seal, labyrinth sealing, pneumostop, pad sealing, spiral are close
The diversified forms such as envelope, magnet fluid sealing, its effect is exactly to prevent from revealing and wear and tear.Existing rubber seal is as shown in figure 1, by close
Seal, sealing ring gland, gland hold-down bolt, sealing end seat, rotary shaft composition, by the pressuring action of spring, keep sealing ring
Contact with rotary shaft, sealing ring constitutes sealing friction pair with rotary shaft, and block media permeates from inside to outside along rotary shaft.In height
During speed operating, sealing ring and rotary shaft friction, sealing ring rubbing surface are easy to wear, do not have long term seal effect, at the same time, quilt
The medium of sealing（It can be powder etc.）Because external and internal pressure is poor, between also gathering friction pair, accelerate the abrasion of sealing ring, make close
Envelope failure.The medium that the lubrication of sealing friction pair can not be solved and sealed（It can be powder etc.）Due to inside and outside differential pressure, gather
Problem between friction pair.
Utility model content
To solve the above problems, the utility model provides a kind of rotation axis seal structure, used as a kind of novel rotary shaft
Sealing structure, its dry friction that can effectively reduce friction pair improves the lubrication between friction pair.Simultaneously in oil pocket lubricating oil pressurize
Effect, effectively cut-off inner face medium can as needed heighten the capacity and oil pressure of lubricating oil in oil pocket to exosmosis.Blocking, it is close
Envelope, lubrication are organically combined, and improve leakage efficiency.Implementation result is good.
The utility model solves the technical scheme that its technical problem used：A kind of rotation axis seal structure, including axle
Seat, the rotary shaft on axle bed, the circular rotary shaft are located at the sealing end seat on the outside of axle bed and are installed by fastener
Sealing ring gland in sealing end seat, is provided with suit sealing ring on the rotary shaft, the sealing inside the sealing end seat
Ring includes being close to the first sealing ring of axle bed and the second sealing ring being located between the first sealing ring and sealing ring gland, the sealing
In end seat filling lubricant medium in annular seal space, annular seal space is formed in the first sealing ring and the second sealing interannular.
It is further used as the improvement of technical solutions of the utility model, first sealing ring and sealing ring gland are near the
One side surface of two sealing rings is equipped with wedge-shaped boss, and the both side surface of the second sealing ring is equipped with wedge-shaped impression, the fastening
Wedge-shaped boss can be embedded in wedge-shaped impression and be radially expanded the second sealing ring when part is tightened up.
The improvement of technical solutions of the utility model is further used as, two are provided between first sealing ring and sealing ring gland
Individual or multiple second sealing rings, adjacent two second sealing interannulars are provided with sealing ring expansion cone, and the two ends of sealing ring expansion cone have
Can be embedded in the wedge-shaped impression of both sides so that the pyramidal structure that is radially expanded of the second sealing ring.
The improvement of technical solutions of the utility model is further used as, adjacent two second sealing interannulars pass through sealing ring expansion cone
Oil-gap was formed, the sealing ring expansion cone is provided with the first oil-through hole.
The improvement of technical solutions of the utility model is further used as, the wedge-shaped boss of first sealing ring is provided with second
Oil-through hole.
The improvement of technical solutions of the utility model is further used as, the sealing end seat is provided with and annular seal space identical pressure
Power oil nozzle.
Be further used as the improvement of technical solutions of the utility model, sealing ring gland be provided with can stretch into sealing end seat from
And compress the bulge loop at the second sealing ring edge.
It is further used as the improvement of technical solutions of the utility model, first sealing ring is rigid sealing ring, described the
Two sealing rings are elastic sealing ring.
The beneficial effects of the utility model：During work, the lubricant medium in annular seal space can be in the second sealing ring, rotary shaft
Between produce oil film, play a part of lubrication reduce abrasion.Simultaneously the lubricant medium in annular seal space can block sealed medium to
Exosmosis.Totally solve sealing and two principal elements of anti-attrition.Improve leakage efficiency.It is close as a kind of novel rotary shaft
Seal structure, its dry friction that can effectively reduce friction pair improves the lubrication between friction pair.The pressurize of lubricating oil is made in oil pocket simultaneously
With effectively cut-off inner face medium can as needed heighten the capacity and oil pressure of lubricating oil in oil pocket to exosmosis.Block, seal,
Lubrication is organically combined, and improves leakage efficiency.Implementation result is good.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is prior art construction schematic diagram；
Fig. 2 is the utility model structural representation.
Specific embodiment
Reference picture 2, that show the concrete structure of the preferred embodiment of the utility model.Will be detailed below this reality
With the design feature of new each element, and it is with shown in Fig. 2 if being described to during direction (upper and lower, left and right, before and after)
Structure be that, with reference to description, but actually used direction of the present utility model is not limited thereto.
The utility model provides a kind of rotation axis seal structure, including axle bed 1, the rotary shaft 2, ring on axle bed 1
The sealing ring for being located at the sealing end seat 3 in the outside of axle bed 1 around the rotary shaft 2 and being arranged on by fastener 4 in sealing end seat 3
Gland 5, is provided with the sealing ring being sleeved in rotary shaft 2 inside the sealing end seat 3, the sealing ring includes being close to axle bed 1
First sealing ring 6 and the second sealing ring 7 being located between the first sealing ring 6 and sealing ring gland 5, the in the sealing end seat 3
Filling lubricant medium in annular seal space, annular seal space is formed between one sealing ring 6 and the second sealing ring 7, lubricant medium can select lubricating grease
Deng.Wherein, first sealing ring 6 is rigid sealing ring, and second sealing ring is 7 elastic sealing rings, such as rubber seal
Ring.The end face for sealing end seat 3 is provided with some bolts hole, and fastener 4 can preferably be tightened on the gland pressure in each bolt hole
Tight bolt.Sealing ring gland 5 is provided with can be stretched into sealing end seat 3 so as to compress the bulge loop 51 at the edge of the second sealing ring 7.
First sealing ring 6 and sealing ring gland 5 are equipped with wedge-shaped boss in the side surface near the second sealing ring 7
61st, 52, the both side surface of the second sealing ring 7 is equipped with wedge-shaped impression 71, and wedge-shaped boss 61,52 can when the fastener 4 is tightened up
Embedded wedge-shaped impression 71 is interior and is radially expanded the second sealing ring 7,2 and second sealing ring of rotary shaft 7 is produced interference fit,
Play the effect of contact sealing.As the utility model preferred embodiment, first sealing ring 6 and sealing ring gland 5
Between be provided between two or more second sealing rings 7, adjacent two second sealing rings 7 and be provided with sealing ring expansion cone 8, sealing ring expansion cone
8 two ends have can be embedded in both sides wedge-shaped impression 71 so that the pyramidal structure that is radially expanded of the second sealing ring 7.
The sealing end seat 3 is provided with and annular seal space identical push-type lubricating fitting 9.By close between adjacent two second sealing rings 7
Seal ring expansion cone 8 formed oil-gap, and this is crossed oil-gap and forms annular oil cavity, and the sealing ring expansion cone 8 is provided with the first mistake
Oilhole 81.The wedge-shaped boss 61 of first sealing ring 6 is provided with the second oil-through hole 62.During work, by the note of push-type lubricating fitting 9
Enter lubricating grease, under the pressurize of push-type lubricating fitting 9, pressure is formed in annular seal space, lubricating grease can be filled in the second sealing ring 7（Rubber
Glue）, the first sealing ring 6（Rigidity）And in the cavity between sealing ring expansion cone 8.Due to the effect of pressure, lubricating grease can be second
Sealing ring 7（Rubber）, rotation between centers produce oil film, play a part of lubrication reduce abrasion.The first sealing ring 6 and second is close simultaneously
Lubricating grease between seal ring 7 can block sealed medium to exosmosis.
Novel rotation axis seal structure can effectively reduce the dry friction of friction pair, improve the lubrication between friction pair.It is simultaneously close
The pressure maintaining effect of lubricant medium in envelope chamber, effectively cut-off inner face medium can as needed heighten lubricating oil in oil pocket to exosmosis
Capacity and oil pressure.Blocking, sealing, lubrication are organically combined, and improve leakage efficiency.Implementation result is good.
Certainly, the invention is not limited to above-mentioned implementation method, and those of ordinary skill in the art are without prejudice to originally
Equivalent variations or replacement can be also made on the premise of utility model spirit, these equivalent modifications or replacement are all contained in the application
In claim limited range.
Claims (8)
1. a kind of rotation axis seal structure, it is characterised in that：Rotary shaft, the circular rotation including axle bed, on axle bed
Axle is located at the sealing end seat on the outside of axle bed and is arranged on the sealing ring gland in sealing end seat, the sealed end by fastener
Seat is internal to be provided with suit sealing ring on the rotary shaft, and the sealing ring includes being close to the first sealing ring of axle bed and is located at first
Formed in the first sealing ring and the second sealing interannular in the second sealing ring between sealing ring and sealing ring gland, the sealing end seat
Filling lubricant medium in annular seal space, annular seal space.
2. rotation axis seal structure according to claim 1, it is characterised in that：First sealing ring and sealing ring gland
Wedge-shaped boss is equipped with the side surface near the second sealing ring, the both side surface of the second sealing ring is equipped with wedge-shaped impression,
Wedge-shaped boss can be embedded in wedge-shaped impression and be radially expanded the second sealing ring when the fastener is tightened up.
3. rotation axis seal structure according to claim 2, it is characterised in that：First sealing ring and sealing ring gland
Between be provided with two or more second sealing rings, adjacent two second sealing interannulars are provided with sealing ring expansion cone, sealing ring expansion cone
Two ends have can be embedded in the wedge-shaped impression of both sides so that the pyramidal structure that is radially expanded of the second sealing ring.
4. rotation axis seal structure according to claim 3, it is characterised in that：Adjacent two second sealing interannulars are by sealing
Ring expansion cone formed oil-gap, and the sealing ring expansion cone is provided with the first oil-through hole.
5. rotation axis seal structure according to claim 2, it is characterised in that：On the wedge-shaped boss of first sealing ring
It is provided with the second oil-through hole.
6. rotation axis seal structure according to claim 1, it is characterised in that：The sealing end seat is provided with and annular seal space
Identical push-type lubricating fitting.
7. rotation axis seal structure according to claim 1, it is characterised in that：Sealing ring gland is provided with can stretch into sealing
So as to compress the bulge loop at the second sealing ring edge in end seat.
8. rotation axis seal structure according to claim 1, it is characterised in that：First sealing ring is rigid seal
Ring, second sealing ring is elastic sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254513.6U CN206246676U (en) | 2016-11-16 | 2016-11-16 | A kind of rotation axis seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254513.6U CN206246676U (en) | 2016-11-16 | 2016-11-16 | A kind of rotation axis seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206246676U true CN206246676U (en) | 2017-06-13 |
Family
ID=59001973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621254513.6U Active CN206246676U (en) | 2016-11-16 | 2016-11-16 | A kind of rotation axis seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206246676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524807A (en) * | 2017-09-20 | 2017-12-29 | 顾梦君 | A kind of shaft sealer in electromechanical equipment |
| CN116428364A (en) * | 2023-06-13 | 2023-07-14 | 仪征市恒泰无纺机械有限公司 | Spindle sealing mechanism for needling machine |
-
2016
- 2016-11-16 CN CN201621254513.6U patent/CN206246676U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524807A (en) * | 2017-09-20 | 2017-12-29 | 顾梦君 | A kind of shaft sealer in electromechanical equipment |
| CN116428364A (en) * | 2023-06-13 | 2023-07-14 | 仪征市恒泰无纺机械有限公司 | Spindle sealing mechanism for needling machine |
| CN116428364B (en) * | 2023-06-13 | 2023-08-18 | 仪征市恒泰无纺机械有限公司 | Spindle sealing mechanism for needling machine |
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