CN208831721U - A kind of shaft end mechanical seal structure - Google Patents
A kind of shaft end mechanical seal structure Download PDFInfo
- Publication number
- CN208831721U CN208831721U CN201821225294.8U CN201821225294U CN208831721U CN 208831721 U CN208831721 U CN 208831721U CN 201821225294 U CN201821225294 U CN 201821225294U CN 208831721 U CN208831721 U CN 208831721U
- Authority
- CN
- China
- Prior art keywords
- shaft
- sealing ring
- ring
- mechanical seal
- shaft end
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 6
- 208000020442 loss of weight Diseases 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
Abstract
A kind of shaft end mechanical seal structure of the utility model, the structure includes shaft (1), sealing ring (2) are set on the shaft (1), the side of the sealing ring (2) is provided with the stress relief grooves (2.1) of cyclic structure, sealing ring (4) are equipped on the shaft (1), bellows (3) and compacting ring (5) are set on the shaft (1), and bellows (3) is located between sealing ring (4) and compacting ring (5).A kind of shaft end mechanical seal structure of the utility model, structure is simple and can eliminate stress and improve sealing effect.
Description
Technical field
The utility model relates to a kind of mechanical seal structures, more particularly, to the mechanical seal in a kind of shaft of lobe pump
Mechanism belongs to technical field of vacuum equipment.
Background technique
Currently, the end seals of the vacuum equipments such as lobe pump mostly use seal ring structure form, find in actual use,
Since the stress generated in high-speed rotation is easy to cause sealing ring deformation, the seal ring structure form after deformation is uncontrolled
System is easy to rub with pump case, burn to wear setting；Meanwhile conventional seal ring structure heat dissipation area is limited, when long
Between work after be easy soften because temperature is excessively high, so that deformation occurs, influence the rotational stability of vacuum pump；In addition,
Sealing ring is arranged in such a way that axial multiple springs are pressed in conventional sealing structure, but such structure is not equal enough due to stress
It is even, it is bad so as to cause pressing result, sealing effect is influenced, is solved the above problems for this purpose, needing the completely new sealing structure of one kind.
Summary of the invention
It is simple purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of structure and stress can be eliminated and mentioned
The shaft end mechanical seal structure of high sealing effect.
Purpose of the utility model is realized as follows:
A kind of shaft end mechanical seal structure, the structure include shaft, and sealing ring is set in the shaft, described close
The side of seal ring is provided with the stress relief grooves of cyclic structure, and sealing ring is equipped in the shaft, is set in the shaft
Bellows and compacting ring, and bellows is between sealing ring and compacting ring；
A kind of shaft end mechanical seal structure of the utility model is provided with the loss of weight heat dissipation of cyclic structure in the sealing ring
Slot.
Compared with prior art, the utility model has the beneficial effects that
The utility model carries out the stress generated when rotating by the stress relief grooves being arranged on the anchor ring of sealing ring
Release, preventing sealing ring, deformation occurs；Meanwhile adding by stress relief grooves, external heat dissipation area is increased, helps to mention
High heat dispersion；Finally, suppressing by bellows sealing ring, conventional spring point contact is replaced with face contact, not only
It compresses better effect, and more simple, conveniently using assembling after bellows structure, helps to improve assembly efficiency, reduce and look forward to
The production cost of industry.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of shaft end mechanical seal structure of the utility model.
Wherein:
Shaft 1, sealing ring 2, bellows 3, sealing ring 4, compacting ring 5；
Stress relief grooves 2.1, loss of weight radiating groove 2.2.
Specific embodiment
Referring to Fig. 1, the utility model relates to a kind of shaft end mechanical seal structure, the structure includes shaft 1, described
Sealing ring 2 is set in shaft 1, the side of the sealing ring 2 is provided with the stress relief grooves 2.1 of cyclic structure, the shaft 1
It is upper to be equipped with sealing ring 4, bellows 3 and compacting ring 5 are set in the shaft 1, and bellows 3 is located at sealing ring 4 and compresses
Between circle 5；
In use, the work for discharging stress by stress relief grooves 2.1, and playing and increase heat dissipation area, improving heat-sinking capability
With；Sealing ring 4 is compressed by bellows 3, so that entire pressing force is bigger, the effect with being conducive to improve compacting sealing
Fruit；
Further, it is provided with the loss of weight radiating groove 2.2 of cyclic structure in the sealing ring 2, it is close to not only help mitigation
The weight of seal ring, and the effect of heat conduction and heat radiation can be played.
In addition: it should be noted that above-mentioned specific embodiment is only a prioritization scheme of this patent, the skill of this field
Any change or improvement that art personnel are done according to above-mentioned design, within the protection domain of this patent..
Claims (2)
1. a kind of shaft end mechanical seal structure, it is characterised in that: the structure includes shaft (1), is set on the shaft (1)
Have sealing ring (2), the side of the sealing ring (2) is provided with the stress relief grooves (2.1) of cyclic structure, on the shaft (1)
Equipped with sealing ring (4), bellows (3) and compacting ring (5) are set on the shaft (1), and bellows (3) is located at sealing ring
(4) between compacting ring (5).
2. a kind of shaft end mechanical seal structure as described in claim 1, it is characterised in that: be provided with ring in the sealing ring (2)
The loss of weight radiating groove (2.2) of shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821225294.8U CN208831721U (en) | 2018-07-31 | 2018-07-31 | A kind of shaft end mechanical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821225294.8U CN208831721U (en) | 2018-07-31 | 2018-07-31 | A kind of shaft end mechanical seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208831721U true CN208831721U (en) | 2019-05-07 |
Family
ID=66307898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821225294.8U Expired - Fee Related CN208831721U (en) | 2018-07-31 | 2018-07-31 | A kind of shaft end mechanical seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208831721U (en) |
-
2018
- 2018-07-31 CN CN201821225294.8U patent/CN208831721U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |