CN208764324U - Double mechanical seal mechanism with helicla flute - Google Patents
Double mechanical seal mechanism with helicla flute Download PDFInfo
- Publication number
- CN208764324U CN208764324U CN201821283213.XU CN201821283213U CN208764324U CN 208764324 U CN208764324 U CN 208764324U CN 201821283213 U CN201821283213 U CN 201821283213U CN 208764324 U CN208764324 U CN 208764324U
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- Prior art keywords
- ring
- drive sleeve
- rotary shaft
- helicla flute
- stationary
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Abstract
The utility model provides a kind of double mechanical seal mechanism with helicla flute comprising: rotary shaft；Drive sleeve is set in outside rotary shaft, is equipped in drive sleeve and is revolved around it the equally distributed helicla flute of axis, and the drive sleeve is fixed by holding screw and rotary shaft, and the holding screw passes through drive sleeve along rotary shaft radial direction and pushes against rotary shaft；Stationary ring, it is set in outside rotary shaft and is set as symmetrically being divided to two at left and right sides of column drive sleeve, a rotating ring is provided between each stationary ring and drive sleeve, the stationary ring and corresponding rotating ring offset, the rotating ring is set in outside rotary shaft and is located on the inside of drive sleeve, the ring portion protrudes into drive sleeve and connects with drive sleeve, is also connected with spring between two rotating rings.This double mechanical seal mechanism with helicla flute has the advantages that reduce component wear, extends mechanism service life.
Description
Technical field
The utility model belongs to spiral groove end face mechanical sealing technical field, is related to a kind of double mechanical with helicla flute
Sealing mechanism.
Background technique
Mechanical seal refer to by least a pair of end face perpendicular to rotation axis Fluid pressure and compensation mechanism elastic force (or
Magnetic force) under the action of and the cooperation of auxiliary seal under keep being bonded and the dress for preventing fluid leakage that constitutes with respect to sliding
It sets, it is a kind of gland seal device of rotating machinery.Spiral groove end face mechanical sealing general structure design currently on the market all compares
Relatively simple, helicla flute is generally located on rotating ring or stationary ring, is caused rotating ring and stationary ring under original state to be also to maintain fitting, is made
Wear phenomenon is more severe when obtaining work, for a long time, causes mechanical seal service life shorter.
In summary, the utility model designs a kind of reasonable design, reduction component wear, extends the double of mechanism service life
End surface mechanical sealing mechanism.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, propose it is a kind of design rationally, reduce
Component wear, the double mechanical seal mechanism with helicla flute for extending mechanism service life.
The purpose of this utility model can be realized by the following technical scheme: a kind of double mechanical seal with helicla flute
Mechanism, comprising:
Rotary shaft；
Drive sleeve is set in outside rotary shaft, is equipped in drive sleeve and is revolved around it the equally distributed helicla flute of axis, the biography
Dynamic set is fixed by holding screw and rotary shaft, and the holding screw passes through drive sleeve along rotary shaft radial direction and pushes against rotation
Axis；
Stationary ring is set in outside rotary shaft and is set as symmetrically being divided to two at left and right sides of column drive sleeve, each stationary ring and biography
A rotating ring is provided between dynamic set, the stationary ring and corresponding rotating ring offset, and the rotating ring is set in outside rotary shaft and is located at
On the inside of drive sleeve, the ring portion protrudes into drive sleeve and connects with drive sleeve, is also connected with spring between two rotating rings.
The back side of two rotating rings is connected separately with gasket as a further improvement of the utility model, and the spring is connected to
Between two gaskets.
As the further improvement of the utility model, dynamic seal ring is provided between the rotating ring and rotary shaft, it is described
Rotating ring is equipped with groove, and the gasket covers in respective slot and surrounds to be formed for installing corresponding dynamic seal ring with the groove
Surround space.
The stationary ring is installed on the rotary shaft by stationary seat as a further improvement of the utility model, the stationary ring
Static sealing ring is provided between seat and corresponding stationary ring, the stationary seat is connected with stationary ring far from one end of corresponding rotating ring.
Based on the above-mentioned technical proposal, the utility model embodiment at least can produce following technical effect: this band helicla flute
Double mechanical seal mechanism overall construction design it is reasonable, be laid out it is more compact, be different from and spiral be set on rotating ring/stationary ring
Slot, it is in drive sleeve or so that helicla flute is set in drive sleeve by this mechanical seal, and the double-face mechanical sealing structure of this case
Rotating ring and stationary ring is arranged in two sides, rather than rotating ring/stationary ring is set in outside drive sleeve, and drive sleeve is integrated with rotating seat, spring base
Equal effect structures, in this way can directly no setting is required components such as rotating seat, spring base, not only improve the compactedness of layout, also
It ensure that the linkage effect of rotary shaft, it is whole in use, rotating ring and stationary ring cooperation closely, are not likely to produce abrasion, not only reduce
Component wear rate also extends the service life of mechanism.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the structural schematic diagram of one preferred embodiment of the utility model.
In figure, 100, rotary shaft；200, drive sleeve；210, helicla flute；300, holding screw；400, stationary ring；500, rotating ring；
600, spring；700, gasket；800, dynamic seal ring；910, stationary seat；920, static sealing ring；930, pin member.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Below with reference to Fig. 1, technical scheme provided by the present invention will be described in more detail.
As shown in Figure 1, this double mechanical seal mechanism with helicla flute includes:
Rotary shaft 100；
Drive sleeve 200 is set in outside rotary shaft 100, equally distributed equipped with axis 100 is revolved around it in drive sleeve 200
Helicla flute 210, the drive sleeve 200 is fixed by holding screw 300 and rotary shaft 100, and the holding screw 300 is along rotary shaft
100 radial directions pass through drive sleeve 200 and push against rotary shaft 100；
Stationary ring 400 is set in outside rotary shaft 100 and is set as two that are symmetrically divided to 200 left and right sides of column drive sleeve, each
A rotating ring 500 is provided between stationary ring 400 and drive sleeve 200, the stationary ring 400 and corresponding rotating ring 500 offset, described dynamic
Ring 500 is set in outside rotary shaft 100 and is located at 200 inside of drive sleeve, and the rotating ring 500 partially protrudes into drive sleeve 200 and and passes
Dynamic set 200 connects, and is also connected with spring 600 between two rotating rings 500.
The utility model protects a kind of double mechanical seal mechanism with helicla flute, and overall construction design is reasonable, layout
It is more compact, it is different from the setting helicla flute 210 on 500/ stationary ring 400 of rotating ring, helicla flute 210 is set to transmission by this mechanical seal
On set 200, and the double-face mechanical sealing structure of this case, it is that rotating ring 500 and stationary ring are set at left and right sides of drive sleeve 200
400, rather than 500/ stationary ring 400 of rotating ring is set in outside drive sleeve 200, drive sleeve 200 is integrated with the knot such as rotating seat, spring base
Structure effect, in this way can direct no setting is required components such as rotating seat, spring base, not only improve the compactedness of layout, it is ensured that
The linkage effect of rotary shaft 100, it is whole in use, rotating ring 500 and stationary ring 400 cooperate closely, it is not likely to produce abrasion, is not only subtracted
Lack component wear rate, also extends the service life of mechanism.
In the present invention, relatively reliable to dock between rotating ring 500 and spring 600, guarantee double mechanical
The back side of the stability of seal operation, preferably two rotating rings 500 is connected separately with gasket 700, i.e., each rotating ring 500 faces another rotating ring
500 position is connected separately with gasket 700, and the spring 600 is connected between two gaskets 700.
Preferably, to guarantee that the connection of rotating ring 500 and rotary shaft 100 is reliable, it is arranged between rotating ring 500 and rotary shaft 100
There is dynamic seal ring 800, the rotating ring 500 is equipped with groove, and the gasket 700 covers in respective slot and surrounds shape with the groove
At the encirclement space for installing corresponding dynamic seal ring 800, it not only ensure that the reliability of work, but also work assembly and disassembly in this way
It safeguards all more convenient.
Further, to guarantee that the connection of stationary ring 400 and rotary shaft 100 is reliable, stationary ring 400 is installed by stationary seat 910
In rotary shaft 100, be provided with static sealing ring 920 between the stationary seat 910 and corresponding stationary ring 400, the stationary seat 910 with
One end connection of the stationary ring 400 far from corresponding rotating ring 500.
Further, stationary seat 910 is also connected with stationary ring 400 far from one end of corresponding rotating ring 500 by pin member 930,
Not only installation is reliable, and demolition and maintenance are also more convenient.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (4)
1. a kind of double mechanical seal mechanism with helicla flute, it is characterised in that: include:
Rotary shaft；
Drive sleeve is set in outside rotary shaft, is equipped in drive sleeve and is revolved around it the equally distributed helicla flute of axis, the drive sleeve
It is fixed by holding screw and rotary shaft, the holding screw passes through drive sleeve along rotary shaft radial direction and pushes against rotary shaft；
Stationary ring is set in outside rotary shaft and is set as symmetrically being divided to two at left and right sides of column drive sleeve, each stationary ring and drive sleeve
Between be provided with a rotating ring, the stationary ring and corresponding rotating ring offset, and it is outer and be located at transmission that the rotating ring is set in rotary shaft
Set inside, the ring portion protrude into drive sleeve and connect with drive sleeve, are also connected with spring between two rotating rings.
2. the double mechanical seal mechanism according to claim 1 with helicla flute, it is characterised in that: the back side of two rotating rings
It is connected separately with gasket, the spring is connected between two gaskets.
3. the double mechanical seal mechanism according to claim 2 with helicla flute, it is characterised in that: the rotating ring and rotation
Dynamic seal ring is provided between shaft, the rotating ring is equipped with groove, and the gasket is covered in respective slot and closed with the groove
Enclose the encirclement space to be formed for installing corresponding dynamic seal ring.
4. the double mechanical seal mechanism according to any one of claims 1 to 3 with helicla flute, it is characterised in that: institute
It states stationary ring to install on the rotary shaft by stationary seat, is provided with static sealing ring between the stationary seat and corresponding stationary ring, it is described quiet
Ring seat is connected with stationary ring far from one end of corresponding rotating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821283213.XU CN208764324U (en) | 2018-08-09 | 2018-08-09 | Double mechanical seal mechanism with helicla flute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821283213.XU CN208764324U (en) | 2018-08-09 | 2018-08-09 | Double mechanical seal mechanism with helicla flute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764324U true CN208764324U (en) | 2019-04-19 |
Family
ID=66130881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821283213.XU Active CN208764324U (en) | 2018-08-09 | 2018-08-09 | Double mechanical seal mechanism with helicla flute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764324U (en) |
-
2018
- 2018-08-09 CN CN201821283213.XU patent/CN208764324U/en active Active
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