CN2298389Y - Machinery sealing device with anti-block and abrasion resistant - Google Patents
Machinery sealing device with anti-block and abrasion resistant Download PDFInfo
- Publication number
- CN2298389Y CN2298389Y CN 97210311 CN97210311U CN2298389Y CN 2298389 Y CN2298389 Y CN 2298389Y CN 97210311 CN97210311 CN 97210311 CN 97210311 U CN97210311 U CN 97210311U CN 2298389 Y CN2298389 Y CN 2298389Y
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- CN
- China
- Prior art keywords
- ring
- sealing gland
- sealing
- seat
- resistant
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- Expired - Fee Related
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Abstract
The utility model discloses a blocking-resistant and corrosion-resistant mechanical sealing device, relating to the field of mechanical technology. The blocking-resistant and corrosion-resistant mechanical sealing device is mainly characterized in that a movable ring is connected to a driving base through a transmission pin, and the driving base is clamped and connected between a long shaft sleeve and a short shaft sleeve. The sealing end surface of the movable ring and the sealing end surface of a stationary ring are jointed, and the stationary ring is connected with a push ring through an anti-rotation pin. A circular arced lug on the push ring is connected with the concave circular arced slot shape of a sealing gland. Multiple or single springs are arranged between the spring seat and the push ring, and the spring seat is connected with the sealing gland through screws. The blocking-resistant and corrosion-resistant mechanical sealing device is suitable for the sealing devices of mechanical rotary shafts which covey fluid containing solid particles. The utility model has the advantages of blocking resistance, corrosion resistance, wear resistance, high temperature resistance and reliable sealing performance.
Description
The mechanical seal device of the anti-blocking wear resistance erosion of the utility model relates to field of mechanical technique.Be applicable to and carry the sealing device for mechanical rotating shaft that contains the solid particle fluid.
At present, conveying is contained the more fluids such as dreg slurry of solid particle, it generally is device with double mechanical seal spare, by stationary ring, rotating ring, O-ring seals, spring and spring seat, throw-out collar, driving pin and screw are formed, and its deficiency is the rotating ring of the mechanical seal of media end, stationary ring communicates with gap between rotating shaft or the axle sleeve, its gap is not only very little, and is blind crack, and the solid particle and the impurity that exist medium deposit very easily during this time, thereby stop up, light then the operation of mechanical seal produced disturb and influence sealability, heavy then make the rotating ring of mechanical seal lose floatability and tracing ability, cause mechanical seal to lose efficacy and the problem of generation leakage.
The purpose of this utility model provides a kind of mechanical seal device of anti-blocking wear resistance erosion, and this mechanical seal device is installed on machinery, has anti-the obstruction, and is wear-resistant, corrosion protection, and easy to install, the life-span is long, the sealability reliable characteristics.
The design (Fig. 1-2) of the mechanical seal device of the anti-blocking wear resistance erosion of the utility model is by driving pin (1), O-ring seals (2,5,7,15), rotating ring (3), stationary ring (4), isolation pad (6), throw-out collar (8), sealing gland (9), many or single springs and spring seat (10,12), screw (11), stop pin (13), major axis cover (14), drive seat (16), short sleeve (17), restrictor ring (18) is formed.It is that rotating ring (3) is connected on the driving seat (6) by driving pin (1) that its structure connects, O-ring seals (2) places moving-coil (3) and drives between the seat (16), and moment of torsion is passed to rotating ring (3) by driving pin (1), driving seat (16) clamping is connected between major axis cover (14) and the short sleeve (17), O-ring seals (15) places major axis cover (14), between short sleeve (17) and the rotating shaft, and rotate with axle, the seal face of the seal face of rotating ring (3) and stationary ring (4) is fitted, stationary ring (4) connects throw-out collar (8) by stop pin (13), O-ring seals (2) and isolation pad (6) place between stationary ring (4) and the sealing gland (9), enough big radial clearance and enough little axial clearance are arranged between the sealing gland (9) of media end and stationary ring (4), make its generation possibility of jamming be reduced to inferior limit.O-ring seals (5) places between the endoporus and spring seat (9) of stationary ring (4), stationary ring is passed to throw-out collar (8) with moment of torsion by stop pin (13), circular arc lug on the throw-out collar (8) connects the concave circular arc groove on the sealing gland (9), O-ring seals (7) places between sealing gland (9) and the machine casing, throw-out collar (8) can move axially in sealing gland and radial regulation, many or single springs (10) place between spring seat (12) and the throw-out collar (8), spring seat (12) is connected on the sealing gland (9) by screw (11), sealing gland has flushing hole and annular pass on (9), and the washing solution that injects from flushing hole than the high 0.1MP of pressure medium can wash the sealing position.Stationary ring (4) is realized the random back-off performance under the effect of spring force and hydraulic coupling, thereby the sealing surface that guarantees dynamic and static ring (3,4) is not only fitted but also do relative movement, the sealing of realization end face.Rotating ring (3), stationary ring (4) is all used high hardness, the material that wear-resisting property is high, as cemented carbide, silicon carbide etc. are embedded in the stainless seat by interference.Restrictor ring (18) Spielpassung is on short sleeve (17), and wherein many or single spring (10) can be single spring, also can be that many springs constitute.
Of the present utility model installing and using is to place sealing to press in the small cup (9) throw-out collar (8), many or single springs (10) place in the spring seat (12), with screw (11) spring seat (12) and sealing gland (9) are tightened together, after placing in the groove of sealing gland (9) then, the groove on the stationary ring (4) is aimed at the pin (13) of throw-out collar (8) to isolation pad (6) and O-ring seals (2).Firmly stationary ring (4) is pushed in the sealing gland (9), be assembled into one aggregate is installed.When specifically installing and using, generally should on the basis of this pressure spring, recompress 6～7mm, consider some its error of particularity of using equipment can be controlled in ± scope of 3mm in, just can guarantee the proper functioning of seal arrangement.Major axis cover (14), the shape of the length of short sleeve (17) and shape and driving seat (16) can change with the requirement of the equipment of use.The utility model has only been given and will have been driven seat (16) and O-ring seals (15) and be clamped in structure between major axis cover (14) and the short sleeve (17).
The effect of the mechanical seal device of the anti-blocking wear resistance erosion of the utility model is compared with prior art: 1, because of having conceived the mechanical sealing element of realizing the random back-off performance and the state type structure that medium is isolated fully, promptly be the element surface that will contact with medium also is smooth and do not have the dead angle, so just overcome solid particle in the fed sheet of a media and foreign material effect effectively the obstruction of seal element; 2, owing to dynamic and static anchor ring is fitted each other, and do the motive sealing of slide relative, be the decision mechanical sealing performance and the key in life-span, therefore friction ring adopts high hardness, and is wear-resistant, corrosion-resistant, resistant to elevated temperatures Hardmetal materials, and be embedded in respectively in the stainless steel seat of dynamic and static ring, constitute, have corrosion-resistant, resistance to wear the characteristics that the life-span is long; 3, owing to stationary ring and sealing gland, the O-ring seals of interference fit and the static seal device of isolation pad are all adopted in the sealing between sealing gland and the housing, have the reliable advantage of sealability.
Fig. 1 is the structural drawing of the many springs of mechanical seal device of the anti-blocking wear resistance erosion of the utility model.
Fig. 2 is a throw-out collar among Fig. 1 (8) and the axial cross section structure figure that is connected of sealing gland (9).
Fig. 3 is the structural drawing of the mechanical seal device list spring of anti-blocking wear resistance erosion.
The embodiment of the mechanical seal device of the anti-blocking wear resistance erosion of the utility model is that the mechanical seal device that diameter of axle of production is 13Omm is a throw-out collar (8) of being processed into 202.5 * 172 * 6mm with stainless steel, be processed into the sealing gland (9) of 280 * 195 * 60mm with stainless steel, throw-out collar (8) places in the sealing gland (9), with the prior art products external diameter is many springs (10) of 9.5 * 45.5mm, be processed into the spring seat (12) of 233 * 168.5 * 75mm with stainless steel, many springs (10) place in the spring seat (12), hex screw (11) with prior art products M6 * 12mm, spring seat (12) and sealing gland (9) are linked together, the isolation pad (6) of the 207.5 * 195 * 3mm that makes with the O shape rubber seal (2) of prior art products 194.5 * 7mm with polytetrafluoroethylene places in the groove of stationary ring (4) and sealing gland (9), rotating ring (3), stationary ring (4) is processed into 211 * 169 * 29.5mm and 210 * 171 * 52mm respectively with cemented carbide, be embedded in stainless moving by interference, in the stationary seat, stop pin (13) prior art products M6 * 11mm, then the groove on the stationary ring (4) is aimed at the pin (13) of throw-out collar (8), firmly stationary ring (4) is pushed in the sealing gland (9), aggregate is installed even if form one.Be processed into the driving seat (16) of 214.5 * 130 * 30mm with stainless steel, driving pin (1) with prior art products 8 * 17.5mm, rotating ring (3) is installed on the driving seat (16), in the groove between rotating ring (3) and driving seat (16), O shape rubber seal (2) with prior art products 194.5 * 7mm is carried out static seal, drive seat (16) and be clamped in stainless steel and make between the short sleeve (17) of the major axis cover (14) of 160 * 130 * 140mm and 178 * 130 * 66.5mm, it with spool or the sealing of axle sleeve carry out static seal with the O shape rubber seal (15) of prior art products 129.6 * 3.5mm.Between the endoporus of stationary ring (4) and spring seat (12), carry out the seal isolation protection with the O shape rubber seal (5) of prior art products 171.5 * 5.3mm.Make the restrictor ring (18) of 218 * 178 * 30mm with polytetrafluoroethylene and glass powder, Spielpassung is on short sleeve (17).Place with the O shape rubber seal (7) of prior art products 221.5 * 5.3mm and to carry out static seal between sealing gland (9) and the machine casing and constitute many spring mechanical sealing devices that the diameter of axle is 130mm.
Another embodiment of the mechanical seal device of the anti-blocking wear resistance erosion of the utility model is that the mechanical seal device that diameter of axle of production is 85.73 is a throw-out collar (8) of being processed into 128.5 * 103 * 9mm with stainless steel, be processed into the sealing gland (9) of 203 * 120.3 * 50mm with stainless steel, throw-out collar (8) places in the sealing gland (9), with the prior art products external diameter is single spring (10) of 119 * 84.5mm, be processed into the spring seat (12) of 150 * 104 * 19mm with stainless steel, single spring (10) places in the spring seat (12), with the hex screw (11) of prior art products M6 * 18mm, spring seat (12) and sealing gland (9) are linked together.Use the O shape rubber seal (2) and the isolation pad (6) of prior art products to place in the groove of stationary ring (4) and sealing gland (9) then, stop pin (13) is used prior art products, with the pin (13) on the groove aligning throw-out collar (8) of stationary ring (4), firmly stationary ring (4) is pushed in the sealing gland (9), aggregate is installed even if form one.All the other processing connected elements are identical with the mechanical seal device of many springs, so just constitute single spring mechanical sealing device that a diameter of axle is 85.73mm.
Claims (4)
1, a kind of mechanical seal device of anti-blocking wear resistance erosion, it is characterized in that rotating ring (3) is connected on the driving seat (16) by driving pin (1), O-ring seals (2) places rotating ring (3) and drives between the seat (16), driving seat (16) clamping is connected between major axis cover (14) and the short sleeve (17), O-ring seals (15) places major axis cover (14), between short sleeve (17) and the rotating shaft, the seal face of the seal face of rotating ring (3) and stationary ring (4) is fitted, stationary ring (4) connects throw-out collar (8) by stop pin (13), O-ring seals (2) and isolation pad (6) place between stationary ring (4) and the sealing gland (9), O-ring seals (5) places between the endoporus and spring seat (12) of stationary ring (4), circular arc lug on the throw-out collar (8) connects the concave circular arc groove on the sealing gland (9), spring (10) places between spring seat (12) and the throw-out collar (8), spring seat (12) is connected on the sealing gland (9) by screw (11), restrictor ring (18) Spielpassung is on short sleeve (17), and O-ring seals (7) places between sealing gland (9) and the machine casing and constitutes.
2, mechanical seal device according to claim 1 is characterized in that enough big radial clearance and enough little axial clearance are arranged between sealing gland (9) at media end and the stationary ring (4).
3, mechanical seal device according to claim 1 is characterized in that on the sealing gland (9) flushing hole and annular pass being arranged.
4, seal arrangement according to claim 1 is characterized in that spring (10) can be single spring, can be many springs also, and place between spring seat (12) and the throw-out collar (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210311 CN2298389Y (en) | 1997-05-09 | 1997-05-09 | Machinery sealing device with anti-block and abrasion resistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210311 CN2298389Y (en) | 1997-05-09 | 1997-05-09 | Machinery sealing device with anti-block and abrasion resistant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2298389Y true CN2298389Y (en) | 1998-11-25 |
Family
ID=33929273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97210311 Expired - Fee Related CN2298389Y (en) | 1997-05-09 | 1997-05-09 | Machinery sealing device with anti-block and abrasion resistant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2298389Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291927A (en) * | 2013-06-01 | 2013-09-11 | 四川日机密封件股份有限公司 | Mechanical sealing device for granular media |
| CN103574040A (en) * | 2012-07-18 | 2014-02-12 | 苏州立德泵技术研究院有限公司 | Embedded single sealing device without sealing cover |
| CN105114632A (en) * | 2015-09-29 | 2015-12-02 | 温州市铁达干磨密封有限公司 | Sealing device of dry grinding machine |
| CN108302035A (en) * | 2017-12-20 | 2018-07-20 | 杭州电子科技大学 | A kind of packaging machinery sealing elastomer Quimby pump |
| CN113494610A (en) * | 2021-07-08 | 2021-10-12 | 西华大学 | Floating ring structure with damping support and mechanical sealing device |
-
1997
- 1997-05-09 CN CN 97210311 patent/CN2298389Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574040A (en) * | 2012-07-18 | 2014-02-12 | 苏州立德泵技术研究院有限公司 | Embedded single sealing device without sealing cover |
| CN103291927A (en) * | 2013-06-01 | 2013-09-11 | 四川日机密封件股份有限公司 | Mechanical sealing device for granular media |
| CN103291927B (en) * | 2013-06-01 | 2016-01-06 | 四川日机密封件股份有限公司 | For the mechanical seal device of granule medium |
| CN105114632A (en) * | 2015-09-29 | 2015-12-02 | 温州市铁达干磨密封有限公司 | Sealing device of dry grinding machine |
| CN108302035A (en) * | 2017-12-20 | 2018-07-20 | 杭州电子科技大学 | A kind of packaging machinery sealing elastomer Quimby pump |
| CN113494610A (en) * | 2021-07-08 | 2021-10-12 | 西华大学 | Floating ring structure with damping support and mechanical sealing device |
| CN113494610B (en) * | 2021-07-08 | 2023-06-27 | 西华大学 | Floating ring structure with damping support and mechanical sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |