CN206723124U - Without axle sleeve bearing-free Double End integrated mechanical sealing - Google Patents
Without axle sleeve bearing-free Double End integrated mechanical sealing Download PDFInfo
- Publication number
- CN206723124U CN206723124U CN201720279643.3U CN201720279643U CN206723124U CN 206723124 U CN206723124 U CN 206723124U CN 201720279643 U CN201720279643 U CN 201720279643U CN 206723124 U CN206723124 U CN 206723124U
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- CN
- China
- Prior art keywords
- ring
- axle sleeve
- hough
- sleeve bearing
- mechanical sealing
- 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.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 35
- 210000004907 gland Anatomy 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 21
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 4
- 239000000110 cooling liquid Substances 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 4
- 238000009987 spinning Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 13
- 235000013312 flour Nutrition 0.000 abstract description 11
- 238000003801 milling Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009837 dry grinding Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000002826 coolant Substances 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
Abstract
The utility model discloses one kind without axle sleeve bearing-free Double End integrated mechanical sealing, the preceding stationary ring being arranged on the outside of the pump housing, preceding gland and rear pressing cover are sequentially connected and with pump shaft closed into chamber, pump shaft is connected in chamber with tetrafluoro bellows, preceding stationary ring agrees with to form first flour milling with being embedded in the preceding rotating ring surface of tetrafluoro bellows composition by carborundum, tetrafluoro bellows rear end is arranged with Hough and divides semi-ring, Hough divides semi-ring rear end to be provided with spacing wear plate, spacing wear plate and Hough are additionally provided with straight pin between dividing semi-ring, it is driven for the cold rotating ring of rear end, spacing wear plate rear end is connected with cold rotating ring in turn, calm ring, throw-out collar and the second elastic compensation element, cold rotating ring agrees with to form second flour milling with calm ring surface.The utility model energy-conserving and environment-protective, good cooling results, sealing is efficient, and volume is light and handy, has a wide range of application, low manufacture cost.Solve the problems, such as that smooth, blocking, parital vacuum etc. do not cause dry grinding to cause mechanical seal to be failed for medium supply in equipment running process.
Description
Technical field
Mechanical seal field is the utility model is related to, it is more particularly to a kind of close without axle sleeve bearing-free Double End packaging type machinery
Envelope.
Background technology
Because there is pressure difference, in order to prevent medium from leaking, sealing need to be set in pump operation for air outside fluid in pump and pump
Device, chemical industry are frequently encountered deep-etching, the conveying of high-temperature medium, and are easier to pressure of the medium in course of conveying occur
Power is unstable, filter medium clogging or operating process error cause of short duration parital vacuum to make mechanical seal dry grinding failure.And common Fluorine-lined
The machine envelope of chemical pump typically using the fitted outside machine such as WB2 types, 169 types envelope, only up to 100 degree of heatproof, can when temperature is too high
It can cause that spring-compressed is excessive, axle transmission is excessive, so that sealing surface inordinate wear, can either make O-ring or connection gold
Category part go wrong, cause to reveal, when pump convey high temperature corrosion medium, machine envelope rotating ring and stationary ring to temperature caused by mill without
Method is cooled.
Existing some machines envelope generally adds cooling-water duct, it is necessary to additionally mounted existing machine envelope is outer at present, closed
Property poor, installation trouble, because centre is generally separated by sealant, the bulk temperature of machine envelope can only be reduced, and at rotating ring and stationary ring
Localized hyperthermia can not but obtain timely processing.
Also, existing machine envelope is more to be connected using axle sleeve with pump shaft, and axle sleeve in use get rusty by easy fouling, influences machine
The service life of envelope, also, a kind of new type water cooling as disclosed in Application No. 201610001532.6 of traditional machine envelope is acidproof
In alkali high temperature resistant packaging type machine envelope, wherein sealing is realized using water-sealed bearing to cooling water, but bearing holds as axle sleeve
Situations such as corrosion easily occurs, the fault rate of increase machine envelope.And in being sealed using the machine of bearing, axle sleeve, general volume is all larger,
Application is strongly limit, adds production cost, and production difficulty is big, than mould batch Die Casting relatively difficult to achieve.
Utility model content
The utility model is to overcome above-mentioned drawback, there is provided a kind of good cooling results, good sealing effect, small volume, is fabricated to
This low no axle sleeve bearing-free Double End integrated mechanical sealing, can allow between rotating ring and stationary ring and occur without dry grinding phenomenon, avoid
Flour milling cracking phenomena caused by temperature difference.
To achieve the above object of the invention, the technical solution adopted in the utility model is：One kind is without axle sleeve bearing-free Double End
Integrated mechanical sealing, including it is arranged on preceding stationary ring 2, preceding gland 3 and rear pressing cover 4 that the outside of pump shaft 1 is sequentially connected, preceding stationary ring 2
It is connected with rear pressing cover 4 with pump shaft 1, tetrafluoro ripple is provided with the cavity that pump shaft 1, preceding stationary ring 2, preceding gland 3 and rear pressing cover 4 are formed
Pipe 5 and the Hough being fastened on tetrafluoro bellows 5 divide semi-ring 6, and preceding stationary ring 2 by carborundum wear ring with being embedded in tetrafluoro ripple
Agree with the surface of preceding rotating ring 7 that pipe 5 forms；
Hough divides the front end of semi-ring 6 to be connected with being located at the first elastic compensation element 8 of the front end of tetrafluoro bellows 5, and both it
Between be provided with dust cover 23；
Hough divides the rear end of semi-ring 6 to be provided with spacing wear plate 9, and spacing wear plate 9 and Hough are additionally provided with cylinder between dividing semi-ring 6
Pin 10；
The spacing rear end of wear plate 9 is connected with cold rotating ring 11, calm ring 12, the elastic compensation element of throw-out collar 13 and second in turn
14, the second elastic compensation element 14 is connected with rear pressing cover 4, and stop pin 15 is provided between throw-out collar 13 and rear pressing cover 4；
Further, both spinning self-lockings of preceding gland 3 and rear pressing cover 4 are connected, and planar seal ring 16 is provided with its junction；
Further, the preceding rear end of stationary ring 2 is provided with O-ring 17, and preceding stationary ring 2 is provided with gasket seal 18 with the preceding junction of gland 3；
Preferably, spacing shim 9 is provided with cold seal ring of moving ring 19 with the junction of pump shaft 1；
Preferably, ring 12 of cooling down is provided with calm ring sealing ring 20 with the junction of rear pressing cover 4；
Further, Hough divides semi-ring 6 to be provided with fastening bolt 21；
Further, preceding gland 3 is provided with cooling liquid inlet and cooling liquid outlet.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
1st, the utility model eliminates conventional use of axle sleeve and bearing, is directly connected using tetrafluoro bellows 5 with pump shaft 1
Connect, and cooling cavities is sealed with structures such as calm ring 12, cold rotating rings 11, substitute water-sealed bearing, saving raw material
Corrosion-resistant, corrosion performance is improved simultaneously, the application of original equipment has been expanded and has reduced cost, made its more energy efficient more ring
Protect.
2nd, for the utility model before the rotation of pump shaft 1, coolant carries out cooling circulation by import, cooling cavities and outlet,
Now flour milling is surrounded by coolant, and it is not in dry grinding phenomenon in the state of being run without medium to have ensured equipment, avoids the temperature difference
Caused cracking.
3rd, the utility model is after conventional use of axle sleeve, bearing is removed, simple in construction, small volume, connected mode letter
It is single, replace original external mechanical seal completely in the case where equipment is without any changes, in mold production process, work
Skill requires to reduce, and improves production efficiency and yield rate.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Wherein：1st, pump shaft；2nd, preceding stationary ring；3rd, preceding gland；4th, rear pressing cover；5th, tetrafluoro bellows；6th, Hough divides semi-ring；7th, it is preceding
Rotating ring；8th, the first elastic compensation element；9th, spacing wear plate；10th, straight pin；11st, cold rotating ring；12nd, calm ring；13rd, throw-out collar；
14th, the second elastic compensation element；15th, stop pin；16th, planar seal ring；17th, O-ring；18th, gasket seal；19th, cold rotating ring is close
Seal；20th, calm ring sealing ring；21st, fastening bolt；22nd, cooling liquid inlet；23rd, dust cover.
Embodiment
Below in conjunction with the accompanying drawings and example is further described to the utility model：
Example：
This example provides one kind without axle sleeve bearing-free Double End integrated mechanical sealing, as shown in figure 1, being arranged on pump shaft
Preceding stationary ring 2, preceding gland 3 and the rear pressing cover 4 in 1 outside are sequentially connected and with the closed of pump shaft 1 into chamber, preceding gland 3 and rear pressing cover 4
Both spinning self-locking connections, are provided with planar seal ring 16, pump shaft 1 is connected in chamber with tetrafluoro bellows 5, preceding in its junction
Stationary ring 2 agrees with to form first flour milling with being embedded in the surface of preceding rotating ring 7 of the composition of tetrafluoro bellows 5 by carborundum wear ring,
First sealing surface of cooling cavities is also formed simultaneously, and the rear end of tetrafluoro bellows 5 is arranged with Hough and divides semi-ring 6, and Hough divides semi-ring 6
Rear end is provided with spacing wear plate 9, and spacing wear plate 9 and Hough are additionally provided with straight pin 10 between dividing semi-ring 6, is the cold rotating ring of rear end
11 transmissions, the spacing rear end of wear plate 9 are connected with cold rotating ring 11, calm ring 12, the elastic compensation element 14 of throw-out collar 13 and second in turn,
Cold rotating ring 11 agrees with to form second flour milling with the calm surface of ring 12, while also forms second sealing surface of cooling cavities.
Above, Hough divides the front end of semi-ring 6 to be connected with being located at the first elastic compensation element 8 of the front end of tetrafluoro bellows 5, and
Dust cover 23 is provided between the two, and the second elastic compensation element 14 is connected with rear pressing cover 4, is provided between throw-out collar 13 and rear pressing cover 4
Stop pin 15, between the second elastic compensation element 14 causes cold rotating ring 11 as second sealing surface be not in when pump shaft 1 rotates
Gap, medium is effectively avoided from sealing face leakage, action effect and the phase of the second elastic compensation element 14 of the first elastic compensation element 8
Together so that preceding rotating ring 7 and preceding stationary ring 2 closely agree with its flour milling, and stop pin 15 make it that calm ring 12 will not be with pump shaft 1
Rotate and rotate.
Gasket seal 18 is provided with preceding stationary ring 2 and the preceding junction of gland 3, when equipment bolt connection pump housing bonnet and preceding gland
During 3 flange face, sealing is reached by gasket seal 18, and O-ring 17 is provided with the preceding rear end of stationary ring 2, it is quiet before being effectively prevented
Ring 2 comes off.
While being provided with cold seal ring of moving ring 19 in spacing wear plate 9 and the junction of pump shaft 1, also cool down ring 12 with rear pressure
The junction of lid 4 is provided with calm ring sealing ring 20, completes the sealing to whole cooling cavities, cooling liquid inlet is provided with preceding gland 3
22 and cooling liquid outlet（Do not embodied in accompanying drawing 1, particular location is arranged symmetrically with cooling liquid inlet 22 on preceding gland 3）So that
Coolant persistent loop in cooling cavities.
To make tetrafluoro bellows 5 be fastened on pump shaft 1, divide in Hough and fastening bolt 21 is provided with semi-ring 6 so that rotating ring portion
Divide and rotated with the rotation of pump shaft 1.
Mechanical seal operation principle is as follows in the present embodiment：
Before the rotation of pump shaft 1, coolant is injected into cooling cavities by cooling liquid inlet 22, then rotates pump shaft 1, pump
Axle drives two rotating rings to rotate together, and while rotating, first flour milling and second flour milling are immersed in coolant, should
Coolant discharges to form circulation by cooling liquid outlet, and after the normal operation of pump shaft 1, medium can premenstrual stationary ring 2 and pump shaft 1 it
Between gap reach flour milling at, now flour milling will not caused cracking or deformation because of the temperature difference, formed first sealing.
Because preceding stationary ring 2 and the preceding junction of gland 3 are provided with gasket seal 18, when equipment bolt connection pump housing bonnet and preceding pressure
During 3 flange face of lid, sealing effectiveness is reached by gasket seal 18, so medium will not be let out between preceding gland 3 and preceding stationary ring 2
Leakage, form second sealing.
While due to being provided with cold seal ring of moving ring 19 in spacing wear plate 9 and the junction of pump shaft 1, also in calm ring 12 and
The junction of rear pressing cover 4 is provided with calm ring sealing ring 20 so that coolant will not be from while cooling cavities internal leakage, external agency
Also it will not enter at cold rotating ring 11 and calm ring 12, form three seals.
Due to being provided with planar seal ring 16 in preceding gland 3 and both the spinning self-locking junctions of rear pressing cover 4 so that coolant is not
It can reveal, form the 4th sealing.
Sealing function in terms of aforementioned four causes the sealing effectiveness of this mechanical seal to reach optimal
For above-mentioned embodiment only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with this skill
The people of art can understand content of the present utility model and implement according to this, can not limit the scope of protection of the utility model with this.
All equivalent transformations done according to the utility model Spirit Essence or modification, should all cover the scope of protection of the utility model it
It is interior.
Claims (7)
1. one kind is without axle sleeve bearing-free Double End integrated mechanical sealing, it is characterised in that：Including being arranged on pump shaft（1）Outside according to
The preceding stationary ring of secondary connection（2）, preceding gland（3）And rear pressing cover（4）, the preceding stationary ring（2）With the rear pressing cover（4）With the pump
Axle（1）Connection, the pump shaft（1）, the preceding stationary ring（2）, the preceding gland（3）With the rear pressing cover（4）In the cavity of formation
Provided with tetrafluoro bellows（5）Be fastened on the tetrafluoro bellows（5）Hough divide semi-ring（6）, the preceding stationary ring（2）With passing through
Carborundum is embedded in the tetrafluoro bellows（5）Rotating ring before composition（7）Agree with surface；
The Hough divides semi-ring（6）Front end is with being located at the tetrafluoro bellows（5）First elastic compensation element of front end（8）Even
Connect, and be provided with dust cover between the two（23）；
The Hough divides semi-ring（6）Rear end is provided with spacing wear plate（9）, the spacing wear plate（9）Divide semi-ring with the Hough
（6）Between be additionally provided with straight pin（10）；
The spacing wear plate（9）Rear end is connected with cold rotating ring in turn（11）, calm ring（12）, throw-out collar（13）Mended with the second elasticity
Repay element（14）, second elastic compensation element（14）With the rear pressing cover（4）Connection, the throw-out collar（13）With the rear pressure
Lid（4）Between be provided with stop pin（15）.
2. according to claim 1 without axle sleeve bearing-free Double End integrated mechanical sealing, it is characterised in that：The preceding gland
（3）With the rear pressing cover（4）Both spinning self-locking connections, planar seal ring is provided with its junction（16）.
3. according to claim 1 without axle sleeve bearing-free Double End integrated mechanical sealing, it is characterised in that：The preceding stationary ring
（2）Rear end is provided with O-ring（17）, the preceding stationary ring（2）With the preceding gland（3）Junction is provided with gasket seal（18）.
4. according to claim 1 without axle sleeve bearing-free Double End integrated mechanical sealing, it is characterised in that：It is described spacing resistance to
Grinding（9）With the pump shaft（1）Junction is provided with cold seal ring of moving ring（19）.
5. according to claim 1 without axle sleeve bearing-free Double End integrated mechanical sealing, it is characterised in that：The calm ring
（12）With the rear pressing cover（4）Junction is provided with calm ring sealing ring（20）.
6. existed according to any one of Claims 1 to 5 without axle sleeve bearing-free Double End integrated mechanical sealing, its feature
In：The Hough divides semi-ring（6）It is provided with fastening bolt（21）.
7. existed according to any one of Claims 1 to 5 without axle sleeve bearing-free Double End integrated mechanical sealing, its feature
In：The preceding gland（3）It is provided with cooling liquid inlet and cooling liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720279643.3U CN206723124U (en) | 2017-03-22 | 2017-03-22 | Without axle sleeve bearing-free Double End integrated mechanical sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720279643.3U CN206723124U (en) | 2017-03-22 | 2017-03-22 | Without axle sleeve bearing-free Double End integrated mechanical sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206723124U true CN206723124U (en) | 2017-12-08 |
Family
ID=60502406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720279643.3U Active CN206723124U (en) | 2017-03-22 | 2017-03-22 | Without axle sleeve bearing-free Double End integrated mechanical sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206723124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678073A (en) * | 2017-03-22 | 2017-05-17 | 张家港市鑫泉密封件有限公司 | Cartridge mechanical seal without bushing and bearing |
-
2017
- 2017-03-22 CN CN201720279643.3U patent/CN206723124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678073A (en) * | 2017-03-22 | 2017-05-17 | 张家港市鑫泉密封件有限公司 | Cartridge mechanical seal without bushing and bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211025 Address after: 215635 No. 62, group 7, xiaomingsha village, Jingang town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Zhang Hua Address before: 215000 Jingang town Deji Shuangfeng Village Jincheng Road, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: ZHANGJIAGANG XINQUAN SEALING MEMBER Co.,Ltd. |
|
| TR01 | Transfer of patent right |