CN102818026A - Centrifugal and labyrinth combined sealing device for vertical main shaft - Google Patents
Centrifugal and labyrinth combined sealing device for vertical main shaft Download PDFInfo
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- CN102818026A CN102818026A CN2012102815756A CN201210281575A CN102818026A CN 102818026 A CN102818026 A CN 102818026A CN 2012102815756 A CN2012102815756 A CN 2012102815756A CN 201210281575 A CN201210281575 A CN 201210281575A CN 102818026 A CN102818026 A CN 102818026A
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- centrifugal
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- oil storage
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Abstract
The invention relates to a centrifugal and labyrinth combined sealing device for a vertical main shaft, which comprises a rotary shaft (1), a centrifugal sealing piece (2), a labyrinth sealing piece (3), a centrifugal sealing ring (4), an oil storage ring (5), an end cover (6) and a housing (7), wherein the rotary shaft (1) is positioned in the housing (7), the centrifugal sealing piece (2) is installed on the lower end of the rotary shaft (1), the centrifugal sealing ring (4) is installed on the lower end of the housing (7), the lower side of the centrifugal sealing ring (4) is provided with the oil storage ring (5), the lower side of the oil storage ring (5) is provided with the end cover (6), the labyrinth sealing piece (3) is arranged between the end cover (6) and the centrifugal sealing piece (2), and an annular space as an oil storage chamber (18) is formed in a center defined by the labyrinth sealing piece (3), the centrifugal sealing ring (4), the oil storage ring (5) and the end cover (6). Without external equipment, due to the adoption non-contact seal, the centrifugal and labyrinth combined sealing device has the advantages of no friction power consumption, long service life and no influence on the rotation precision of a main shaft and is expected to provide a kind of novel sealing mode for sealing the end surface of the main shaft.
Description
Technical field
The present invention relates to a kind of the centrifugal of vertical spindle and labyrinth combination sealing arrangement of being used for, belong to the technical field of Machine Design.
Background technique
Traditional large-scale vertical main shaft often adopts sliding bearing to support; No matter be static-pressure sliding bearing; Still hydrodynamic sliding bearing all must feed lubricant oil during work, and lubricant oil is through reclaim behind the sliding bearing again; And recycle, generally do not allow lubricant oil directly to flow out and get into cutting or grinding zone by end face.For avoiding lubricant oil by face leakage, main-axis end generally is equipped with shaft end seal device, and common have: mechanical seal, labyrinth seal, spiral seal and non-contact gas seal etc.The contact-type mechanical seal sealing configuration life-span is short, and influences spindle rotation accuracy; Labyrinth seal and spiral seal belong to the non-contact sealing, do not influence spindle rotation accuracy, but voltage endurance capability are limited, when hydrodynamic pressure is higher, will influence sealability; The non-contact gas seal must feed pressurized gas by the outside, has increased the sealing cost.
Summary of the invention
Technical problem:For solving above-mentioned technical deficiency, the invention provides a kind of the centrifugal of vertical spindle and labyrinth combination sealing arrangement of being used for.This device need not to increase external equipment, since noncontact seal, no friction power loss, the life-span is long, does not influence spindle rotation accuracy, and being expected provides one type of novel seal mode for the spindle end face seal.
Technological scheme:The centrifugal of vertical spindle and the labyrinth combination sealing arrangement of being used for of the present invention comprises: running shaft, centrifugal seal spare, labyrinth seal, centrifugal seal ring, oil storage ring, end cap, shell; Running shaft is arranged in shell; Centrifugal seal spare is installed in the lower end of running shaft; The centrifugal seal ring is installed in the lower end of shell, is provided with the oil storage ring at centrifugal seal ring downside, is provided with end cap at the downside of oil storage ring; Between end cap and centrifugal seal spare, be provided with labyrinth seal, by labyrinth seal, centrifugal seal ring, oil storage ring, end cap surround in be formed centrally an annular the space be accumulator.
The center hole of centrifugal seal ring is a taper hole, and the miner diameter end of taper hole is near the lower end of shell; The outside on centrifugal seal spare top is a frustum, and matches with the centrifugal seal ring.
Leave the gap between the center taper hole of the frustum of centrifugal seal spare upper outside and centrifugal seal ring, be used for lubricant oil is got rid of into accumulator.
The frustum bigger diameter end of centrifugal seal spare is provided with some annular grooves, is used for forming labyrinth seal with the annular gear piece of labyrinth seal.
Beneficial effect:The centrifugal of vertical spindle and the labyrinth combination sealing arrangement of being used for of the present invention mainly comprises: running shaft, centrifugal seal assembly, labyrinth seal, shell etc., during the running shaft high speed rotating; When the lubricant oil that leaks passes through centrifugal seal assembly; To be thrown away by centrifugal, get into accumulator, get into reclaim line through the spill port on the accumulator; The labyrinth seal that labyrinth seal and centrifugal seal spare are formed will prevent that lubricant oil from flowing out, thereby reach sealing effect.
Description of drawings
Fig. 1 is a general structure schematic representation of the present invention.
Fig. 2 is a centrifugal seal ring structure schematic representation.
Fig. 3 centrifugal seal spare structural representation.
Fig. 4 labyrinth seal structural representation.
Embodiment
The centrifugal of vertical spindle and the labyrinth combination sealing arrangement of being used for of the present invention mainly comprises: running shaft 1, centrifugal seal spare 2, labyrinth seal 3, centrifugal seal ring 4, oil storage ring 5, end cap 6, shell 7 etc., and as shown in Figure 1.Running shaft 1 is arranged in shell 7; Centrifugal seal spare 2 is installed in the lower end of running shaft 1; Centrifugal seal ring 4 is installed in the lower end of shell 7, is provided with oil storage ring 5 at centrifugal seal ring 4 downsides, is provided with end cap 6 at the downside of oil storage ring 5; Between end cap 6 and centrifugal seal spare 2, be provided with labyrinth seal 3, by labyrinth seal 3, centrifugal seal ring 4, oil storage ring 5, end cap 6 surround in be formed centrally an annular the space be accumulator 18.The center hole of centrifugal seal ring 4 is a taper hole, and the miner diameter end 13 of taper hole is near the lower end of shell 7; The outside on centrifugal seal spare 2 tops is a frustum, and matches with centrifugal seal ring 4.
As shown in Figure 2, the miner diameter end 13 of taper hole is near the lower end of shell 7.As shown in Figure 3; The upper end of centrifugal seal spare 2 is taper, and miner diameter end 14 is installed in the lower end of running shaft 1, and centrifugal seal spare 2 leaves the gap with the center taper hole of centrifugal seal ring 4; Be used for through lubricant oil 12, centrifugal seal spare 2 is connected with running shaft 1 through several screws 10.The taper bigger diameter end 15 of centrifugal seal spare 2 is provided with some circular grooves 16, and is as shown in Figure 3.Labyrinth seal 3 is provided with the annular gear piece 17 with quantity such as circular grooves 16, and is as shown in Figure 4.Labyrinth seal 3 is installed in the lower end of the taper bigger diameter end 15 of centrifugal seal spare 2, and leaves certain clearance between the two, and the annular gear piece 17 of labyrinth seal 3 forms labyrinth seal with the circular groove of centrifugal seal spare 2 16.Oil storage ring 5 is provided with several oil outlets 11; Oil storage ring 5 is installed in the lower end of centrifugal seal ring 4; End cap 6 is installed in the lower end of oil storage ring 5, and end cap 6 is connected with centrifugal seal ring 4 through several screws 8 with oil storage ring 5, and labyrinth seal ring 3 is connected with end cap 6 through several screws 9.
When running shaft 1 revolution, centrifugal seal spare 2 will rotate together, owing to leave certain interval between centrifugal seal spare 2 and the labyrinth seal 3, therefore can not influence the rotating accuracy of running shaft 1.When fluid 12 is flowed down through the gap between centrifugal seal spare 2 and the centrifugal seal ring 4 by the upper end, because centrifugal seal ring 2 high speed rotating, fluid 12 will be dumped into accumulator 18 under centrifugal action, get into outside reclaim line through oil outlet 11.The labyrinth seal that labyrinth seal 3 and centrifugal seal spare 2 are formed will prevent that micro fluid from flowing out in the gap between labyrinth seal 3 and the centrifugal seal spare 2, thereby will reach sealing effect.
Claims (4)
1. one kind is used for the centrifugal of vertical spindle and labyrinth combination sealing arrangement, it is characterized in that this device comprises: running shaft (1), centrifugal seal spare (2), labyrinth seal (3), centrifugal seal ring (4), oil storage ring (5), end cap (6), shell (7); Running shaft (1) is arranged in shell (7); Centrifugal seal spare (2) is installed in the lower end of running shaft (1); Centrifugal seal ring (4) is installed in the lower end of shell (7); Be provided with oil storage ring (5) at centrifugal seal ring (4) downside; Downside at oil storage ring (5) is provided with end cap (6), between end cap (6) and centrifugal seal spare (2), is provided with labyrinth seal (3), by labyrinth seal (3), centrifugal seal ring (4), oil storage ring (5), end cap (6) surround in be formed centrally an annular the space be accumulator (18).
2. a kind of the centrifugal of vertical spindle and labyrinth combination sealing arrangement of being used for according to claim 1, it is characterized in that: the center hole of centrifugal seal ring (4) is a taper hole, the miner diameter end of taper hole (13) is near the lower end of shell (7); The outside on centrifugal seal spare (2) top is a frustum, and matches with centrifugal seal ring (4).
3. a kind of the centrifugal of vertical spindle and labyrinth combination sealing arrangement of being used for according to claim 1; It is characterized in that: leave the gap between the frustum of centrifugal seal spare (2) upper outside and the center taper hole of centrifugal seal ring (4), be used for lubricant oil (12) is got rid of into accumulator (18).
4. a kind of the centrifugal of vertical spindle and labyrinth combination sealing arrangement of being used for according to claim 1; It is characterized in that: the frustum bigger diameter end (15) of centrifugal seal spare (2) is provided with some annular grooves (16), is used for forming labyrinth seal with the annular gear piece (17) of labyrinth seal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281575.6A CN102818026B (en) | 2012-08-08 | 2012-08-08 | Centrifugal and labyrinth combined sealing device for vertical main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281575.6A CN102818026B (en) | 2012-08-08 | 2012-08-08 | Centrifugal and labyrinth combined sealing device for vertical main shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102818026A true CN102818026A (en) | 2012-12-12 |
| CN102818026B CN102818026B (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210281575.6A Expired - Fee Related CN102818026B (en) | 2012-08-08 | 2012-08-08 | Centrifugal and labyrinth combined sealing device for vertical main shaft |
Country Status (1)
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| CN (1) | CN102818026B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939609A (en) * | 2014-03-31 | 2014-07-23 | 珠海优特电力科技股份有限公司 | Sealing mechanism for automatically opening storage device and automatic material mixing device |
| WO2023247142A1 (en) * | 2022-06-20 | 2023-12-28 | Sew-Eurodrive Gmbh & Co. Kg | Gearing comprising shaft and centrifugal disk |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3330473A1 (en) * | 1982-11-05 | 1984-05-10 | Inventio AG, 6052 Hergiswil, Nidwalden | Non-contact seal |
| EP0127485B1 (en) * | 1983-05-31 | 1987-09-09 | Kawasaki Steel Corporation | Sealed multi-row roller bearing device for rolling mills |
| JPH074529A (en) * | 1993-01-27 | 1995-01-10 | Skf Mekan Ab | Labyrinth seal device |
| JPH0771624A (en) * | 1993-09-02 | 1995-03-17 | Okuma Mach Works Ltd | Seal for rotary unit |
| CN201265651Y (en) * | 2008-07-25 | 2009-07-01 | 广东科达机电股份有限公司 | Sealing device for mechanical rotating shaft |
| CN102022541A (en) * | 2010-11-03 | 2011-04-20 | 中国科学院长春光学精密机械与物理研究所 | A rotary dynamic sealing device for boat-carrying photoelectric equipment |
-
2012
- 2012-08-08 CN CN201210281575.6A patent/CN102818026B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3330473A1 (en) * | 1982-11-05 | 1984-05-10 | Inventio AG, 6052 Hergiswil, Nidwalden | Non-contact seal |
| EP0127485B1 (en) * | 1983-05-31 | 1987-09-09 | Kawasaki Steel Corporation | Sealed multi-row roller bearing device for rolling mills |
| JPH074529A (en) * | 1993-01-27 | 1995-01-10 | Skf Mekan Ab | Labyrinth seal device |
| JPH0771624A (en) * | 1993-09-02 | 1995-03-17 | Okuma Mach Works Ltd | Seal for rotary unit |
| CN201265651Y (en) * | 2008-07-25 | 2009-07-01 | 广东科达机电股份有限公司 | Sealing device for mechanical rotating shaft |
| CN102022541A (en) * | 2010-11-03 | 2011-04-20 | 中国科学院长春光学精密机械与物理研究所 | A rotary dynamic sealing device for boat-carrying photoelectric equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939609A (en) * | 2014-03-31 | 2014-07-23 | 珠海优特电力科技股份有限公司 | Sealing mechanism for automatically opening storage device and automatic material mixing device |
| CN103939609B (en) * | 2014-03-31 | 2016-05-11 | 珠海优特电力科技股份有限公司 | Storage device is opened sealing mechanism and automatic condiment device automatically |
| WO2023247142A1 (en) * | 2022-06-20 | 2023-12-28 | Sew-Eurodrive Gmbh & Co. Kg | Gearing comprising shaft and centrifugal disk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102818026B (en) | 2015-04-15 |
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Granted publication date: 20150415 Termination date: 20200808 |