CN210218685U - Rotary sealing ring with spiral structure - Google Patents
Rotary sealing ring with spiral structure Download PDFInfo
- Publication number
- CN210218685U CN210218685U CN201920747162.XU CN201920747162U CN210218685U CN 210218685 U CN210218685 U CN 210218685U CN 201920747162 U CN201920747162 U CN 201920747162U CN 210218685 U CN210218685 U CN 210218685U
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- China
- Prior art keywords
- spiral
- head
- sealing washer
- sealing
- sealing ring
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- 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
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- 238000007789 sealing Methods 0.000 title claims abstract description 82
- 229920000459 Nitrile rubber Polymers 0.000 claims description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a take helical structure's rotary seal circle, including integrated into one piece sealing washer body, the sealing washer body is hollow structure, the constant head tank has been seted up on the sealing washer body, sealing washer body one end is provided with the thread head, the sealing washer body other end is provided with the spiral head. Compared with the prior art, the utility model discloses a structure setting makes only can realize the effective sealing of axle class rotation member through a sealing washer to can effectively prevent the gas leakage phenomenon of axle class rotation member during operation, economical and practical, and this sealing washer has bigger deformation space and bigger elasticity, beneficial effect such as life is longer.
Description
Technical Field
The invention relates to the technical field of sealing rings, in particular to a rotary sealing ring with a spiral structure.
Background
The sealing ring is a part with sealing performance in a certain temperature range under working pressure, and has good stability and good waterproof, oil-proof and antifouling effects, so that the sealing ring is widely applied to production and life.
According to the working environment of the seal, the seal can be divided into a static seal and a dynamic seal, and the dynamic seal is suitable for sealing between relatively moving parts in a machine (or equipment). In order to prevent oil in a mechanical equipment box or a cylinder from leaking outwards and prevent external impurities from invading into the box, a dynamic seal assembly is generally widely used for sealing a rotating shaft, the dynamic seal assembly is generally formed by combining an oil seal and parts such as a steel skeleton loaded on the oil seal, a spring and the like, and the radial pressure of the spring on the surface of a shaft neck during rotation and the sealing effect of the oil seal are utilized to realize the sealing effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take helical structure's rotary seal circle does not need extra steel skeleton and spring can realize the sealed to the rotation axis.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take helical structure's rotary seal, includes integrated into one piece sealing washer body, the sealing washer body is hollow structure, the constant head tank has been seted up on the sealing washer body, sealing washer body one end is provided with the thread end, the sealing washer body other end is provided with the spiral head.
In order to reserve a certain deformation space for the screw head, preferably, a section of thread-free gap is reserved at both ends of the screw head.
In order to reserve a certain deformation space for the spiral head, preferably, a section of non-spiral gap is reserved at both ends of the spiral head.
In order to ensure that the sealing ring is more labor-saving to install and convenient to position, the sealing ring body and the thread head are preferably of a circular ring structure, and the spiral head is of a hollow frustum structure.
In order to avoid the air leakage phenomenon during rotation, the upper end face and the lower end face of the outer spiral face of the spiral head are preferably provided with straight-edge chamfers.
In order to ensure that the sealing ring better adapts to a sealing environment, preferably, the sealing ring body, the threaded head and the screw head are all made of nitrile rubber.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the structure of the utility model integrates the oil seal, the steel skeleton, the spring and other parts into a whole, and the effective sealing of the shaft class rotation parts can be realized only by one sealing ring, thus being economical and practical;
(2) the inner part of the utility model is a hollow structure, the sealing ring has larger deformation space, so that the sealing ring can obtain larger elasticity and has longer service life;
(3) the utility model discloses a spiral head structural arrangement can prevent the gas leakage phenomenon of axle class isototation piece during operation.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic plan view of embodiment 2 of the present invention;
fig. 3 is a schematic cross-sectional view of embodiment 2 of the present invention along the center.
In the figure:
1. a seal ring body; 2. positioning a groove; 3. A screw head; 4. A screw head; 5. No thread gap; 6. no spiral gap exists; 7. and (6) chamfering the straight edge.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, a rotary seal ring with a spiral structure includes an integrally formed seal ring body 1, the seal ring body 1 is a hollow structure, a positioning groove 2 is formed on the seal ring body 1, a thread end 3 is arranged at one end of the seal ring body 1, and a spiral end 4 is arranged at the other end of the seal ring body 1. In this embodiment, four rectangular positioning grooves 2 are symmetrically formed in the sealing ring body 1, and the maximum diameters of the thread head 3 and the spiral head 4 are smaller than the diameter of the sealing ring body 1, so that the sealing ring can be conveniently fixed and clamped.
In order to reserve a deformation space for the thread head 3, further, a section of thread-free gap 5 is reserved at both ends of the thread head 3.
In order to reserve a deformation space for the spiral head 4, further, a section of non-spiral gap 6 is reserved at both ends of the spiral head 4.
In order to ensure that the sealing ring is more labor-saving to install and convenient to position, the sealing ring body 1 and the thread head 3 are of a circular ring structure, and the spiral head 4 is of a hollow frustum structure. The circular ring structure at the upper end of the sealing ring is beneficial to fixing and sealing the sealing ring, and the frustum structure at the lower end is beneficial to positioning and sealing.
In order to ensure that the sealing ring can better adapt to a sealing environment, the sealing ring body 1, the thread head 3 and the spiral head 4 are all made of nitrile rubber. In the embodiment, the high-oil working environment of the shaft-type moving part is fully considered, and the nitrile rubber is selected as the raw material of the sealing ring by combining the oil resistance, water resistance, solvent resistance and high-pressure oil resistance of the nitrile rubber and good tensile, compression, wear resistance and other properties of the nitrile rubber.
Example 2
Referring to fig. 1-3, a rotary seal ring with a spiral structure includes an integrally formed seal ring body 1, the seal ring body 1 is a hollow structure, a positioning groove 2 is formed on the seal ring body 1, a thread head 3 is disposed at one end of the seal ring body 1, and a spiral head 4 is disposed at the other end of the seal ring body 1. In this embodiment, four rectangular positioning grooves 2 are symmetrically formed in the sealing ring body 1, and the diameter of the screw head 3 and the maximum diameter of the screw head 4 are both smaller than the diameter of the sealing ring body 1, so that the sealing ring can be conveniently fixed and clamped.
In order to reserve a deformation space for the thread head 3, further, a section of thread-free gap 5 is reserved at both ends of the thread head 3.
In order to reserve a deformation space for the spiral head 4, further, a section of non-spiral gap 6 is reserved at both ends of the spiral head 4.
In order to ensure that the sealing ring is more labor-saving to install and convenient to position, the sealing ring body 1 and the thread head 3 are of a circular ring structure, and the spiral head 4 is of a hollow frustum structure. The circular ring structure at the upper end of the sealing ring is beneficial to fixing and sealing the sealing ring, and the frustum structure at the lower end is beneficial to positioning and sealing.
In order to avoid the air leakage phenomenon during rotation, straight-edge chamfers 7 are further arranged on the upper end face and the lower end face of the outer spiral face of the spiral head 4.
In order to ensure that the sealing ring can better adapt to a sealing environment, the sealing ring body 1, the thread head 3 and the spiral head 4 are all made of nitrile rubber. In the embodiment, the high-oil working environment of the shaft-type moving part is fully considered, and the nitrile rubber is selected as the raw material of the sealing ring by combining the oil resistance, water resistance, solvent resistance and high-pressure oil resistance of the nitrile rubber and good tensile, compression, wear resistance and other properties of the nitrile rubber.
Principle of operation
In embodiment 1, a positioning screw head 3 and a guiding screw head 4 are respectively arranged at two ends of a sealing ring body 1, and the sealing ring body adopts a hollow structure. During installation, the sealing ring body 1, the positioning groove 2 and the spiral head 4 are arranged in a moving part for preliminary positioning, the spiral head 3 is pressed tightly, the sealing ring is fixed on the moving part, the sealing ring body 1 forms certain radial pressure on the shaft diameter surface of the moving part so as to achieve the sealing effect, and the sealing ring can bear larger pressure and deform due to the hollow structure of the sealing ring and the clearance of the spiral structures at two ends; when the sealing ring works, the sealing ring rotates along with the moving part, a layer of sealing oil film with the thickness of about 0.003mm is formed between the sealing lip and the shaft diameter, and the sealing ring can play roles in sealing and lubricating the shaft diameter and reducing abrasion.
In embodiment 2, the straight chamfer 7 is additionally arranged at the upper end and the lower end of the spiral head 4, so that the sealing ring can be more tightly extruded together, the air leakage phenomenon is avoided, and the sealing effect is further enhanced.
Although a few embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (6)
1. The utility model provides a take helical structure's rotary seal, its characterized in that includes integrated into one piece sealing washer body (1), sealing washer body (1) is hollow structure, constant head tank (2) have been seted up on sealing washer body (1), sealing washer body (1) one end is provided with thread head (3), sealing washer body (1) other end is provided with spiral head (4).
2. The rotary seal ring with a spiral structure according to claim 1, wherein: and a section of thread-free gap (5) is reserved at the two ends of the thread head (3).
3. The rotary seal ring with a spiral structure according to claim 2, wherein: and a section of non-spiral gap (6) is reserved at the two ends of the spiral head (4).
4. The rotary seal ring with a spiral structure according to claim 3, wherein: the sealing ring body (1) and the thread head (3) are of a circular ring structure, and the spiral head (4) is of a hollow frustum structure.
5. The rotary seal ring with a spiral structure according to claim 4, wherein: straight edge chamfers (7) are arranged on the upper end face and the lower end face of the outer side spiral face of the spiral head (4).
6. The rotary seal ring with a spiral structure according to claim 1, wherein: the sealing ring body (1), the thread head (3) and the spiral head (4) are all made of nitrile-butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747162.XU CN210218685U (en) | 2019-05-23 | 2019-05-23 | Rotary sealing ring with spiral structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747162.XU CN210218685U (en) | 2019-05-23 | 2019-05-23 | Rotary sealing ring with spiral structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218685U true CN210218685U (en) | 2020-03-31 |
Family
ID=69927078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920747162.XU Expired - Fee Related CN210218685U (en) | 2019-05-23 | 2019-05-23 | Rotary sealing ring with spiral structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218685U (en) |
-
2019
- 2019-05-23 CN CN201920747162.XU patent/CN210218685U/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: 20200331 |