CN201554686U - Mechanical sealing device for marine pump - Google Patents
Mechanical sealing device for marine pump Download PDFInfo
- Publication number
- CN201554686U CN201554686U CN2009201997888U CN200920199788U CN201554686U CN 201554686 U CN201554686 U CN 201554686U CN 2009201997888 U CN2009201997888 U CN 2009201997888U CN 200920199788 U CN200920199788 U CN 200920199788U CN 201554686 U CN201554686 U CN 201554686U
- Authority
- CN
- China
- Prior art keywords
- stuffing box
- box packing
- axle sleeve
- mechanical seal
- seal device
- 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.)
- Expired - Lifetime
Links
Abstract
The utility model discloses a mechanical sealing device for a marine pump, which comprises a rotating seat (11) and a shaft sleeve (10), wherein the shaft sleeve is fixedly connected with a pump shaft (1) and a rotating seal ring (2); and the mechanical sealing device also comprises a stationary seal ring (3) installed in a mechanical seal cover (5), the head part of the stationary seal ring (3) is laminated with the rotating seal ring (2), the tail part of the stationary seal ring (3) is provided with a pretightening spring (4), a seal packing (6) is filled between the mechanical seal cover (5) and the shaft sleeve (10), the end surface of one end of the seal packing (6) pushes against the inner wall of the mechanical seal cover (5), and the other end of the seal packing (6) is provided with a pressing device for the seal packing. The mechanical sealing device for the marine pump has good sealing effect in the conditions of swaying, shaking or high water pressure, and has long service life.
Description
Technical field
The utility model relates to a kind of mechanical seal device, specifically is a kind of mechanical seal device of marine pump.
Background technique
At present,, the sealing of marine pump there is very high requirement, particularly the sealability of outboard suction pump is required highlyer, mostly be provided with mechanical seal device between the pump shaft of existing outboard suction pump peculiar to vessel and the pump housing in boat coastal ship and submarine field.The general structure of this mechanical seal device is: rotating seat, the axle sleeve of fixedlying connected with pump shaft, described axle sleeve is fixedlyed connected with the sealing rotating ring, it also comprises and is installed in the machine sealed cover and seals the stationary seal ring that rotating ring matches, the tail end of described stationary seal ring is provided with a preloading spring, and described preloading spring can guarantee that stationary seal ring and sealing rotating ring fit together closely all the time and play seal action.The mechanical seal device of this structure also can play certain sealing effect, but in actual applications, because ship position has mobility, waving and shaking all when ship moves can impact the sealability of outboard suction pump, and the draft amount of ship all can increase the pressure of water to the outboard suction pump, particularly for submarine under deep water or diving instruments, pressure can be gradually or intermittent the variation when slipping into or emerge, and the pressure height of water is very big to the sealing influence of outboard suction pump.The mechanical seal device of this structure, if when ship moves, wave, shake for a long time and the situation of big hydraulic pressure under work, the sealing flour milling wearing and tearing that stationary seal ring and sealing rotating ring are fitted make the mechanical seal device sealing effect bad, the life-span is shorter.Therefore need often to change the parts in the mechanical seal device of outboard suction pump, so just increased the expense and the manpower of plant maintenance.
The model utility content
The technical problems to be solved in the utility model is, overcomes the defective of above prior art, provide a kind of and when ship moves, wave, shake and the situation lower seal of big hydraulic pressure effective, and the mechanical seal device of the marine pump of long service life.
Technical solution of the present utility model is, a kind of mechanical seal device with marine pump of following structure is provided: it comprises rotating seat, the axle sleeve of fixedlying connected with pump shaft, described axle sleeve is fixedlyed connected with the sealing rotating ring, it also comprises the stationary seal ring that is installed in the machine sealed cover, the head of described stationary seal ring is fitted with the sealing rotating ring, the afterbody of described stationary seal ring is provided with preloading spring, be provided with stuffing box packing between described machine sealed cover and the axle sleeve, the end face of described stuffing box packing one end and machine sealed cover inwall against, the other end of described stuffing box packing is provided with the hold down gag of stuffing box packing.
After adopting above structure, the mechanical seal device of the utility model marine pump compared with prior art, have the following advantages: the mechanical seal device of this marine pump is on the basis of the mechanical seal between the original pump shaft and the pump housing, increased the emergent sealing configuration of stuffing box packing again, stuffing box packing is out of shape under the extruding of hold down gag, stuffing box packing after the distortion seals between machine sealed cover and axle sleeve, make the sealing effect of sealing device safer, reliably, because this mechanical seal device has double-deck sealing effect, even when ship moves, wave, under the situation of vibrations and big hydraulic pressure, the sealing effect of this mechanical seal is also fine, and long service life.
Description of drawings
It shown in the figure structural representation of the mechanical seal device of the utility model marine pump.
As shown in the figure:
1, pump shaft, 2, the sealing rotating ring, 3, stationary seal ring, 4, preloading spring, 5, the machine sealed cover, 6, stuffing box packing, 7, pressing plate, 8, regulate bolt, 9, screw, 10, axle sleeve, 11, rotating seat, 12, the O RunddichtringO, 13, anti-turn screw, 14, positioning plate, 15, fastening screw trip bolt, 16, groove, 17, radial protrusion, 18, annular groove.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in the figure as can be known, the mechanical seal device of the utility model marine pump, it comprises rotating seat 11, the axle sleeve 10 of fixedlying connected with pump shaft 1, described axle sleeve 10 is fixedlyed connected with sealing rotating ring 2, it also comprises the stationary seal ring 3 that is installed in the machine sealed cover 5, the head of described stationary seal ring 3 is fitted with sealing rotating ring 2, the afterbody of described stationary seal ring 3 is provided with preloading spring 4, be provided with stuffing box packing 6 between described machine sealed cover 5 and the axle sleeve 10, the end face of described stuffing box packing 6 one ends and machine sealed cover 5 inwalls against, the other end of described stuffing box packing 6 is provided with the hold down gag of stuffing box packing.
Described hold down gag comprises pressing plate 7, the adjusting bolt 8 that is connected with pressing plate 7, and the tail end of the head of described pressing plate 7 and stuffing box packing 6 offsets, and described machine sealed cover 5 is provided with for regulating the screw 9 that bolt 8 screws installation.
The stuffing box packing that described stuffing box packing 6 is formed for asbestos.
Described rotating seat 11 and the sealing rotating ring 2 between and be provided with O RunddichtringO 12 between rotating seat 11 and the axle sleeve 10.
Be provided with groove 16 in described sealing rotating ring 2 endoporus, described axle sleeve 10 outer walls are provided with the radial protrusion 17 of the clamping that matches with groove 16.
Also be provided with anti-turn screw 13 between described axle sleeve 10 and the rotating seat 11, can prevent that rotating seat 11 breaks away from axle sleeve 10 when axle sleeve 10 rotates with pump shaft 1.
An annular groove 18 that along the circumferential direction extends is set on the outer wall of described axle sleeve 10, connects a positioning plate 14, the inner of described positioning plate 14 and annular groove 18 activity clampings by fastening screw trip bolt 15 on the described pressing plate 7.This positioning plate 14 can guarantee the axial position that the sealing device is installed, and plays the preposition effect.
Claims (5)
1. the mechanical seal device of a marine pump, it comprises rotating seat (11), the axle sleeve (10) of fixedlying connected with pump shaft (1), described axle sleeve (10) is fixedlyed connected with sealing rotating ring (2), it also comprises the stationary seal ring (3) that is installed in the machine sealed cover (5), the head of described stationary seal ring (3) is fitted with sealing rotating ring (2), the afterbody of described stationary seal ring (3) is provided with preloading spring (4), it is characterized in that: be provided with stuffing box packing (6) between described machine sealed cover (5) and the axle sleeve (10), the end face of one end of described stuffing box packing (6) and machine sealed cover (5) inwall against, described stuffing box packing (6) the other end is provided with the hold down gag of stuffing box packing.
2. the mechanical seal device of marine pump according to claim 1, it is characterized in that: described hold down gag comprises pressing plate (7), the adjusting bolt (8) that is connected with pressing plate (7), the afterbody of the head of described pressing plate (7) and stuffing box packing (6) offsets, and described machine sealed cover (5) is provided with for regulating the screw (9) that bolt (8) screws installation.
3. the mechanical seal device of marine pump according to claim 1 is characterized in that: the stuffing box packing that described stuffing box packing (6) is formed for asbestos.
4. the mechanical seal device of marine pump according to claim 1 is characterized in that: between described rotating seat (11) and the sealing rotating ring (2) and be provided with O RunddichtringO (12) between rotating seat (11) and the axle sleeve (10).
5. the mechanical seal device of marine pump according to claim 1 is characterized in that: be provided with groove (16) in described sealing rotating ring (2) endoporus, described axle sleeve (10) outer wall is provided with the radial protrusion (17) of the clamping that matches with groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201997888U CN201554686U (en) | 2009-10-31 | 2009-10-31 | Mechanical sealing device for marine pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201997888U CN201554686U (en) | 2009-10-31 | 2009-10-31 | Mechanical sealing device for marine pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554686U true CN201554686U (en) | 2010-08-18 |
Family
ID=42614368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201997888U Expired - Lifetime CN201554686U (en) | 2009-10-31 | 2009-10-31 | Mechanical sealing device for marine pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554686U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162448A (en) * | 2011-05-30 | 2011-08-24 | 郑州机械研究所 | Melt pump |
| CN102518801A (en) * | 2011-12-15 | 2012-06-27 | 中国石油集团西部钻探工程有限公司 | Special faucet washing pipe compound sealing device for petroleum drilling machine |
| CN102518804A (en) * | 2011-12-29 | 2012-06-27 | 大连华阳光大密封有限公司 | Sealing device for high pressure and variable pressure conditions |
| CN102619984A (en) * | 2012-03-29 | 2012-08-01 | 大连华阳光大密封有限公司 | Mechanical sealing device for high pressure working condition |
| CN102748474A (en) * | 2012-07-19 | 2012-10-24 | 上海德宝密封件有限公司 | Integrated sealing device applicable to stern shaft |
| CN102953986A (en) * | 2012-11-22 | 2013-03-06 | 无锡惠山泵业有限公司 | Oil pump |
| CN104421196A (en) * | 2013-08-29 | 2015-03-18 | 江苏太阳宝新能源有限公司 | Molten salt pump shaft seal device |
| CN112413132A (en) * | 2020-10-30 | 2021-02-26 | 中国航发西安动力控制科技有限公司 | Sealing moving ring for axial plunger pump |
-
2009
- 2009-10-31 CN CN2009201997888U patent/CN201554686U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162448A (en) * | 2011-05-30 | 2011-08-24 | 郑州机械研究所 | Melt pump |
| CN102518801A (en) * | 2011-12-15 | 2012-06-27 | 中国石油集团西部钻探工程有限公司 | Special faucet washing pipe compound sealing device for petroleum drilling machine |
| CN102518801B (en) * | 2011-12-15 | 2015-06-17 | 中国石油集团西部钻探工程有限公司 | Special faucet washing pipe compound sealing device for petroleum drilling machine |
| CN102518804A (en) * | 2011-12-29 | 2012-06-27 | 大连华阳光大密封有限公司 | Sealing device for high pressure and variable pressure conditions |
| CN102619984A (en) * | 2012-03-29 | 2012-08-01 | 大连华阳光大密封有限公司 | Mechanical sealing device for high pressure working condition |
| CN102748474A (en) * | 2012-07-19 | 2012-10-24 | 上海德宝密封件有限公司 | Integrated sealing device applicable to stern shaft |
| CN102953986A (en) * | 2012-11-22 | 2013-03-06 | 无锡惠山泵业有限公司 | Oil pump |
| CN104421196A (en) * | 2013-08-29 | 2015-03-18 | 江苏太阳宝新能源有限公司 | Molten salt pump shaft seal device |
| CN112413132A (en) * | 2020-10-30 | 2021-02-26 | 中国航发西安动力控制科技有限公司 | Sealing moving ring for axial plunger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Vulcan Mechanical Seals Manufacturing Co., Ltd. Assignor: Wu Guoping Contract record no.: 2011330000075 Denomination of utility model: Mechanical sealing device for marine pump Granted publication date: 20100818 License type: Exclusive License Record date: 20110309 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160905 Address after: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee after: Ningbo fu'erken Ceramic Technology Co. Ltd. Address before: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee before: Wu Guoping |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee after: Ningbo Vulcan Polytron Technologies Inc Address before: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee before: Ningbo fu'erken Ceramic Technology Co. Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100818 |