CN206889672U - A kind of double end-face mechanical sealing device - Google Patents
A kind of double end-face mechanical sealing device Download PDFInfo
- Publication number
- CN206889672U CN206889672U CN201720780330.6U CN201720780330U CN206889672U CN 206889672 U CN206889672 U CN 206889672U CN 201720780330 U CN201720780330 U CN 201720780330U CN 206889672 U CN206889672 U CN 206889672U
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- ring
- rotating
- rotating seat
- rotating shaft
- seat
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- 238000007789 sealing Methods 0.000 title claims abstract description 63
- 230000003068 static effect Effects 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model provides a kind of double end-face mechanical sealing device, belongs to technical field of mechanical；It solves existing machinery seal structure complex and the poor technical problem of sealing property；A kind of double end-face mechanical sealing device, including rotating shaft and the stationary ring being installed in rotating shaft, left rotating seat, left rotating ring, right rotating seat and right rotating ring, left rotating ring is embedded on left rotating seat, right rotating ring is embedded on right rotating seat, left rotating seat is located at the both ends of stationary ring with right rotating seat respectively, left rotating ring, right rotating ring is butted in stationary ring both ends of the surface respectively, left rotating seat one end is provided with left mounting groove, one end is provided with rotating shaft to be located in left mounting groove and the other end and the relatively-stationary left spring of rotating shaft, right rotating seat one end is provided with right mounting groove, multiple right springs are embedded with right rotating seat, the spring base for stretching into and in right mounting groove and pushing against right spring is installed with rotating shaft；In total, stationary seat is eliminated, only retains a stationary ring, its is simple in construction, advantage of lower cost.
Description
Technical field
The utility model belongs to technical field of mechanical, is related to a kind of double end-face mechanical sealing device.
Background technology
Double mechanical seal has twice end face seal, if primary seal fails, secondary seal is still salable, anti-stopping leak
Dew.General double seals is required for outer confession sealing fluid system, and introducing sealing liquid into annular seal space is blocked, lubricated and cooled down,
And mostly circulating cooling uses.Sealing fluid, which can not only rinse friction pair, improves mechanical seal working environment, is also used as one
The important detection means whether level sealing surface fails.
Existing double end-face mechanical sealing device, the utility model patent if Authorization Notice No. is CN201221492Y disclose
A kind of double end-face mechanical sealing device, including rotating shaft and two stationary seats and two rotating seats in rotating shaft, two
Rotating seat is separately installed with rotating ring, stationary ring is also separately installed with two stationary seats between two stationary seats on two rotating seats, lead to
Cross a spring being arranged between two rotating rings so that two rotating rings are against on two stationary rings respectively, so as to realize two rotating ring synchronization phases
To two stationary ring frictional rotations, the sealing effectiveness of this double mechanical seal is preferable, but following technical problem simultaneously be present, is tying
On structure, two rotating seats and two rotating rings, cause total more complicated, cost is of a relatively high, in addition, a spring supports respectively
On two rotating rings, cause two rotating rings pass to corresponding stationary ring power it is unbalanced, can cause wherein any one rotating ring with it is corresponding
Sealing between stationary ring is poor, so as to influence the sealing property of whole mechanical seal.
In summary, in order to solve technical problem existing for above-mentioned mechanical seal, it is necessary to design a kind of simple in construction, cost
The preferable double end-face mechanical sealing device of low and overall sealing performance.
Utility model content
The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of simple in construction, cost
The preferable double end-face mechanical sealing device of low and overall sealing performance.
The purpose of this utility model can be realized by following technical proposal：A kind of double end-face mechanical sealing device, including
Rotating shaft and the stationary ring being installed in rotating shaft, left rotating seat, left rotating ring, right rotating seat and right rotating ring, left rotating ring are embedded at left dynamic
In ring seat, right rotating ring is embedded on right rotating seat, and the left rotating seat is located at the both ends of stationary ring, the left side with right rotating seat respectively
Rotating ring is butted on stationary ring left side and right rotating ring is butted on stationary ring right side, one end axial depression of left rotating seat and between rotating shaft
Formed with left mounting groove, left spring is provided with the rotating shaft, left spring one end is located in left mounting groove and is against left rotating seat
On, the other end is relatively fixed with rotating shaft, right rotating seat one end axial depression and between rotating shaft formed with right mounting groove, in right rotating ring
Multiple right springs are embedded with seat, spring base is installed with the rotating shaft, spring base is stretched into right mounting groove and is against simultaneously more
On individual right spring.
In a kind of above-mentioned double end-face mechanical sealing device, the left rotating seat is provided with left sealing on its madial wall
Groove, it is provided with left seal groove and is against left rotating seat and the left sealing ring in rotating shaft respectively.
In a kind of above-mentioned double end-face mechanical sealing device, right sealing ring is provided with the right mounting groove, the right side is close
Seal is between right rotating seat, rotating shaft and spring base and is against respectively in right rotating seat and rotating shaft,
In a kind of above-mentioned double end-face mechanical sealing device, holding screw, holding screw are provided with the right rotating seat
Between adjacent two right springs, the holding screw is through spring base and is against in rotating shaft.
In a kind of above-mentioned double end-face mechanical sealing device, two static sealing rings, institute are arranged with the outer surface of the stationary ring
Two static sealing rings are stated to be spaced and respectively close to the both ends of stationary ring.
Compared with prior art, the utility model has the advantages that：
1st, two groups of rotating rings and rotating seat are provided with this mechanically-sealing apparatus, in rotating shaft, stationary ring is arranged between two rotating rings
And contacted with two rotating rings, from structure for, eliminate stationary seat, while only retain a stationary ring, its structure is simpler, into
This is relatively lower.
2nd, left rotating seat exerts a force with being individually provided with corresponding spring on right rotating seat to it so that left rotating ring and the right side
Rotating ring can be contacted fully with stationary ring, the problem of avoiding left rotating ring or right rotating ring discontinuity, so as to ensure left rotating ring, right dynamic
There is preferable sealing property between ring and stationary ring.
Brief description of the drawings
Fig. 1 is axial sectional view of the present utility model.
In figure, 10, rotating shaft；20th, stationary ring；21st, static sealing ring；30th, left rotating seat；31st, left rotating ring；32nd, left mounting groove；
33rd, left seal groove；34th, left sealing ring；40th, right rotating seat；41st, right rotating ring；42nd, right mounting groove；43rd, right spring；44th, right sealing
Circle；50th, left spring；60th, fixed seat；70th, spring base；80th, holding screw.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, a kind of double end-face mechanical sealing device of the utility model, including rotating shaft 10 and it is installed on rotating shaft 10
On stationary ring 20, left rotating seat 30, left rotating ring 31, right rotating seat 40 and right rotating ring 41.
Left rotating seat 30 and right rotating seat 40 are located at the both ends of stationary ring 20 respectively, left rotating ring 31 be embedded at left rotating seat 30 with
On the relative right-hand member end face of stationary ring 20, right rotating ring 41 is embedded on the right rotating seat 40 left end end face relative with stationary ring 20, and a left side is dynamic
Ring 31 is butted on the left side of stationary ring 20 and right rotating ring 41 is butted on the right side of stationary ring 20, and one end axial depression of left rotating seat 30 is simultaneously
Formed with left mounting groove 32 between rotating shaft 10, left spring 50 is provided with the rotating shaft 10, the one end of left spring 50 is located at left installation
In groove 32 and it is against on left rotating seat 30, the other end is against in the fixed seat 60 being connected with rotating shaft 10, the right one end axle of rotating seat 40
To being recessed and between rotating shaft 10 formed with right mounting groove 42, multiple right springs 43, the rotating shaft are embedded with right rotating seat 40
Spring base 70 is installed with 10, spring base 70 is stretched into right mounting groove 42 and is against simultaneously on multiple right springs 43.
After this structure, whole mechanically-sealing apparatus eliminates stationary ring 20 and only remains a stationary ring 20, letter
Change framework, save cost, meanwhile, on two rotating seats, it is assembled with spring so that the stress of two rotating rings is more equal
Even, the sealing property between two rotating rings and stationary ring 20 is relatively good.
In a sense, when the sealing property between left rotating ring 31, right rotating ring 41 and stationary ring 20 improves, undoubtedly also prolong
The service life of whole mechanically-sealing apparatus is grown.
On the basis of said structure, it is further improved the utility model.
As shown in figure 1, the left rotating seat 30 is provided with left seal groove 33 on its madial wall, in left seal groove 33
It is provided with and is against left rotating seat 30 and the left sealing ring 34 in rotating shaft 10 respectively, by setting left sealing ring 34, improves left dynamic
Sealing property between ring seat 30 and rotating shaft 10, avoid leakage phenomenon occur between the two.
As shown in figure 1, being provided with right sealing ring 44 in the right mounting groove 42, the right sealing ring 44 is located at right rotating seat
40th, be against between rotating shaft 10 and spring base 70 and respectively in right rotating seat 40 and rotating shaft 10, it is evident that right sealing ring 44 with it is left
Sealing ring 34 is different, and it is directly installed in right mounting groove 42, and by the spacing of spring base 70, it is limited to right mounting groove
In 42 so that right sealing ring 44 is installed relatively simply, and the setting of right sealing ring 44, is improved between right rotating seat 40 and rotating shaft 10
Sealing property, avoid leakage phenomenon occur between the two.
As shown in figure 1, being provided with holding screw 80 on the right rotating seat 40, holding screw 80 is located at adjacent two right springs
Between 43, the holding screw 80 is through spring base 70 and is against in rotating shaft 10, the setting of holding screw 80 so that right rotating seat
40th, location and installation and fixation can be quickly realized between spring base 70 and the three of rotating shaft 10, dismounting quite facilitates.
As shown in figure 1, being arranged with two static sealing rings 21 on the outer surface of the stationary ring 20, two static sealing ring 21 is separated by
Open and respectively close to the both ends of stationary ring 20, the setting of two static sealing rings 21, improve close between stationary ring 20 and its installation position
Sealing property, avoid leakage phenomenon occur between the two.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (5)
1. a kind of double end-face mechanical sealing device, including rotating shaft and be installed in rotating shaft stationary ring, left rotating seat, left rotating ring,
Right rotating seat and right rotating ring, left rotating ring are embedded on left rotating seat, and right rotating ring is embedded on right rotating seat, it is characterised in that：Institute
The both ends that left rotating seat is located at stationary ring with right rotating seat respectively are stated, the left rotating ring is butted on stationary ring left side and right rotating ring is butted on
On stationary ring right side, one end axial depression of left rotating seat and between rotating shaft formed with left mounting groove, be provided with the rotating shaft
Left spring, left spring one end are located in left mounting groove and are against on left rotating seat, and the other end is relatively fixed with rotating shaft, right rotating seat
One end axial depression and between rotating shaft formed with right mounting groove, multiple right springs are embedded with right rotating seat, in the rotating shaft
Spring base is installed with, spring base is stretched into right mounting groove and is against simultaneously on multiple right springs.
A kind of 2. double end-face mechanical sealing device according to claim 1, it is characterised in that：The left rotating seat is around it
Left seal groove is provided with madial wall, is provided with left seal groove and is against left rotating seat and the left sealing ring in rotating shaft respectively.
A kind of 3. double end-face mechanical sealing device according to claim 1, it is characterised in that：Set in the right mounting groove
There is a right sealing ring, the right sealing ring is between right rotating seat, rotating shaft and spring base and is against right rotating seat and rotating shaft respectively
On.
4. according to a kind of double end-face mechanical sealing device described in claim 1, it is characterised in that：It is provided with the right rotating seat
Holding screw, for holding screw between adjacent two right springs, the holding screw is through spring base and is against in rotating shaft.
5. according to a kind of double end-face mechanical sealing device described in claim 1, it is characterised in that：Covered on the outer surface of the stationary ring
Provided with two static sealing rings, two static sealing ring is spaced and respectively close to the both ends of stationary ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780330.6U CN206889672U (en) | 2017-06-30 | 2017-06-30 | A kind of double end-face mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780330.6U CN206889672U (en) | 2017-06-30 | 2017-06-30 | A kind of double end-face mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889672U true CN206889672U (en) | 2018-01-16 |
Family
ID=61297890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720780330.6U Expired - Fee Related CN206889672U (en) | 2017-06-30 | 2017-06-30 | A kind of double end-face mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365249A (en) * | 2020-03-12 | 2020-07-03 | 扶冉(上海)流体技术有限公司 | Mechanical seal for sanitary pump |
-
2017
- 2017-06-30 CN CN201720780330.6U patent/CN206889672U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365249A (en) * | 2020-03-12 | 2020-07-03 | 扶冉(上海)流体技术有限公司 | Mechanical seal for sanitary pump |
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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: 20180116 |