CN2911342Y - Integrally packed mechanical sealing means - Google Patents
Integrally packed mechanical sealing means Download PDFInfo
- Publication number
- CN2911342Y CN2911342Y CN 200620034369 CN200620034369U CN2911342Y CN 2911342 Y CN2911342 Y CN 2911342Y CN 200620034369 CN200620034369 CN 200620034369 CN 200620034369 U CN200620034369 U CN 200620034369U CN 2911342 Y CN2911342 Y CN 2911342Y
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- China
- Prior art keywords
- ring
- sealing device
- gland
- mechanical sealing
- integrated mechanical
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- Expired - Fee Related
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Abstract
The utility model discloses an assembling mechanical sealing device with adjustable pressure at the sealing surface, comprising a static ring (14), a motion ring (21), a cover (15), a transmission housing (11), and a compensation member. The motion ring (21) set is positioned on the transmission housing (11). The compensation member is working on the static ring (14) to bind the front end and the rear end of the static ring to form a sealing face. The compensation member is composed of: a. spring members arranged between the cover (15) and the motion ring (21); and b. axial adjustment member arranged on the cover (15) to produce axial displacement and work on the elastic member. The utility model has the advantages that the pressure on the sealing face can be adjusted at any time and maintained at a long-term stable status with no leakage and minimum friction, which can reduce the wearing of the sealing face and improve the life cycle of the sealing device.
Description
Technical field
The utility model relates to seal arrangement, particularly a kind of integrated mechanical sealing device.
Background technique
The raising that requires along with environmental protection and human health requires also to improve constantly to the leakage of machine.Because mechanical sealing leakage amount is very little, sealing is reliable, therefore is often used as the shaft sealing of machineries such as water pump, oil pump, extensively applies in the water supply, oil supply system in fields such as metallurgy, mine, electric power, chemical industry, public utilities.Mechanical seal mainly is made up of two seal rings (rotating ring, stationary ring) perpendicular to axle, the ear end face of rotating ring, the front-end face of stationary ring contact, and under the effect of the elastic force (or magnetic force) of hydrodynamic pressure and/or compensation mechanism, form and keep fitting tightly the also sealing surface of slide relative, and under the cooperation of auxiliary seal, constitute the device that prevents leak of liquid.Integrated mechanical sealing device is that rotating ring, stationary ring and compensation mechanism are become one, and can directly be fixed in the axis hole during use, has simple installation and is the advantage of alignment error with unmanned, has obtained utilization more and more widely in recent years.
In existing integrated mechanical sealing device, its compensation mechanism adopts the spring compensation mechanism more, and a plurality of springs promptly are set between the ear end face of gland and stationary ring, makes rotating ring, the contacted end face of stationary ring keep fitting tightly under the effect of spring.Existing spring compensation mechanism is non-adjustable to the active force of stationary ring, promptly can not adjust the pressure of rotating ring, stationary ring sealing surface, sealing surface pressure is inhomogeneous, can not guarantee for a long time sealing surface pressure be stabilized in neither leak, the minimum working state of friction again, therefore the abrasion of rotating ring, stationary ring sealing surface are very fast, influenced the working life of seal arrangement.In addition, in existing integrated mechanical sealing device, the seal face of its rotating ring, stationary ring is bright and clean and smooth, because its area of contact is less, still is easy to generate leak of liquid after rotating ring, the stationary ring abrasion.
The model utility content
Technical problem to be solved in the utility model provides a kind of integrated mechanical sealing device of adjustable sealing surface pressure.
The technological scheme that its technical problem that solves the utility model adopts is: integrated mechanical sealing device of the present utility model, include stationary ring, rotating ring, gland, drive sleeve and compensation mechanism, the rotating ring suit is fixed on the drive sleeve, compensation mechanism acts on and its front-end face and rotating ring ear end face are fitted tightly and forms sealing surface, it is characterized in that described compensation mechanism comprises:
A. resilient member is arranged between gland and the rotating ring;
B. axial regulating mechanism is arranged on the gland, and generation axial displacement also acts on the resilient member.
In technique scheme, described axial regulating mechanism can adopt nut, feed screw nut etc. can produce the mechanism of straight reciprocating motion, for farthest simplifying the structure of integrated mechanical sealing device, can preferably adopt nut body, be that described axial regulating mechanism is an adjusting nut, this adjusting nut is connected with the inner hole thread of gland.
As improvement of the technical scheme, for further improving sealability, has the bulge loop that extends vertically on the ear end face of described rotating ring, then offer the annular groove suitable on the front-end face of described stationary ring with bulge loop, the height of described bulge loop is less than the degree of depth of annular groove, be to have the cavity that can hold lubricant oil (fat) between the roof of the diapire of annular groove and bulge loop, during assembling in the space packing lubrication grease or the perfusion lubricant oil, both can improve sealability, the sealing surface that can be rotation again provides lubricated, reduce the abrasion speed of sealing surface further, prolong its working life.
The beneficial effects of the utility model are, can regulate the pressure of sealing surface at any time, make the sealing surface pressure long-term stability neither leak, the minimum working state of friction again, thereby reduce sealing surface abrasion speed and prolong working life of seal arrangement effectively.
Description of drawings
This specification comprises following four width of cloth accompanying drawings:
Fig. 1 is the structural representation of the utility model integrated mechanical sealing device;
Fig. 2 is the local enlarged diagram of the utility model integrated mechanical sealing device;
Fig. 3 is the structural representation of rotating ring in the utility model integrated mechanical sealing device;
Fig. 4 is the structural representation of stationary ring in the utility model integrated mechanical sealing device.
Component, position and numbering among the figure: axle 10, drive sleeve 11, transmission ring 12, screw 13, stationary ring 14, annular groove 14a, guide section 14b, gland 15, O RunddichtringO 20, rotating ring 21, bulge loop 21a, O RunddichtringO 22, O RunddichtringO 23, fixing rod 30, pressure ring 31, spring 32, adjusting nut 33.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
With reference to Fig. 1, integrated mechanical sealing device of the present utility model, include stationary ring 14, rotating ring 21, gland 15, drive sleeve 11 and compensation mechanism, rotating ring 21 suits are fixed on the drive sleeve 11, and compensation mechanism acts on and its front-end face and rotating ring 21 ear end faces are fitted tightly and forms sealing surface.Described compensation mechanism comprises: a. resilient member is arranged between gland 15 and the rotating ring 21; B. axial regulating mechanism is arranged on the gland 15, and generation axial displacement also acts on the resilient member.Described axial regulating mechanism can adopt feed screw nut, nut etc. can produce the mechanism of straight reciprocating motion, for farthest simplifying the structure of integrated mechanical sealing device, can preferably adopt nut body.With reference to Fig. 1, described axial regulating mechanism is an adjusting nut 33, and this adjusting nut 33 is connected with the inner hole thread of gland 15, and adjusting nut 33 stretches in the gland 15 and acts on the resilient member.
Described elasticity can preferably adopt the cluster spring of being made up of some springs.With reference to Fig. 2, described resilient member can produce uniform pressure by constituting along stationary ring 14 circumferential uniform springs 32 on sealing surface.Spring 32 is sleeved on its front end and passes on gland 15 and the fixing rod 30 that stationary ring 14 is connected, and the quantity of fixing rod 30 is identical with the quantity of spring 32.Fixing rod 30 can adopt screw rod, and its head is positioned at outside the gland 15, can indicate abrasion between rotating ring 21, the stationary ring 14 by the screw head that exposes, so that can understand, grasp the operation conditions of sealing surface at any time, helps safety in production.With reference to Fig. 2, in the gland 15, on fixing rod 30, be set with pressure ring 31 in axial sliding, the two ends of spring 32 act on respectively on stationary ring 14, the pressure ring 31, and the front end of described adjusting nut 33 acts on the pressure ring 31.Can regulate the pressure of sealing surface at any time at work by adjusting nut 33.
On the basis of abovementioned technology, for further improving sealability,, has the bulge loop 21a that extends vertically on the ear end face of described rotating ring 21 with reference to Fig. 3, with reference to Fig. 4, then offer the annular groove 14a suitable on the front-end face of described stationary ring 14 with bulge loop 21a.With reference to Fig. 1, described bulge loop 21a stretches in the annular groove 14a, and the inside-and-outside ring sidewall of bulge loop 21a contacts with the inwall of annular groove 14a, has increased the area of sealing surface.With reference to Fig. 1, the height of described bulge loop 21a is less than the degree of depth of annular groove 14a, be to have the cavity that can hold lubricant oil (fat) between the roof of the diapire of annular groove 14a and bulge loop 21a, during assembling in the space packing lubrication grease or the perfusion lubricant oil, both can improve sealability, the sealing surface that can be rotation again provides lubricated, reduces the abrasion speed of sealing surface further.
Fig. 1 shows a kind of typical mounting type between drive sleeve 11 and the axle 10.With reference to Fig. 1, be set with transmission ring 12 on the outer end of described drive sleeve 11, radially pass drive sleeve 11 along transmission ring 12 circumferential uniform screws 13, promptly integrated mechanical sealing device is installed on the axle 10 by transmission ring 12 and screw 13.
Show a kind of collocation form of auxiliary seal in the utility model integrated mechanical sealing device among Fig. 1 simultaneously.With reference to Fig. 1, described stationary ring 14 rear portions are radially shunk and are formed the guide section 14b that is slidingly matched with gland 15 inwalls, and this guide section 14b is provided with O RunddichtringO 22; Described gland 15 is provided with O RunddichtringO 23 with the corresponding outer wall of axis hole; The inwall of described drive sleeve 11 is provided with O RunddichtringO 20.
It is pointed out that some principles of top described the utility model integrated mechanical sealing device that just explains through diagrams.Because the those of ordinary skill to constructed field is easy to carry out on this basis some modifications and change, therefore this specification be not be the utility model integrated mechanical sealing device to be confined to shown in and in described concrete structure and the Applicable scope, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (9)
1, integrated mechanical sealing device, include stationary ring (14), rotating ring (21), gland (15), drive sleeve (11) and compensation mechanism, rotating ring (21) suit is fixed on the drive sleeve (11), compensation mechanism acts on and makes its front-end face and rotating ring (21) ear end face fit tightly and form sealing surface on the stationary ring (14), it is characterized in that described compensation mechanism comprises:
A. resilient member is arranged between gland (15) and the rotating ring (21);
B. axial regulating mechanism is arranged on the gland (15), and generation axial displacement also acts on the resilient member.
2, integrated mechanical sealing device as claimed in claim 1 is characterized in that: described axial regulating mechanism is adjusting nut (33), and this adjusting nut (33) is connected with the inner hole thread of gland (15).
3, integrated mechanical sealing device as claimed in claim 2 is characterized in that:
A. described resilient member is by constituting along the circumferentially uniform spring (32) of stationary ring (14), and spring (32) is sleeved on its front end and passes on gland (15) and the fixing rod (30) that stationary ring (14) is connected;
B. in the gland (15), be set with pressure ring (31) in axial sliding on fixing rod (30), the two ends of spring (32) act on respectively on stationary ring (14), the pressure ring (31);
The front end of c. described adjusting nut (33) acts on the pressure ring (31).
4, integrated mechanical sealing device as claimed in claim 3 is characterized in that: described fixing rod (30) is a screw rod, and its head is positioned at outside the gland (15).
5, integrated mechanical sealing device as claimed in claim 1 is characterized in that: have the bulge loop (21a) that extends vertically on the ear end face of described rotating ring (21); Then offer on the front-end face of described stationary ring (14) and the suitable annular groove (14a) of bulge loop (21a); The height of described bulge loop (21a) is less than the degree of depth of annular groove (14a).
6, integrated mechanical sealing device as claimed in claim 1 is characterized in that: be set with transmission ring (12) on the outer end of described drive sleeve (11), radially pass drive sleeve (11) along the circumferential uniform screw (13) of transmission ring (12).
7, integrated mechanical sealing device as claimed in claim 1 is characterized in that: described stationary ring (14) rear portion is radially shunk and is formed the guide section (14b) that is slidingly matched with gland (15) inwall, and this guide section (14b) is provided with O RunddichtringO (22).
8, integrated mechanical sealing device as claimed in claim 1 is characterized in that: described gland (15) is provided with O RunddichtringO (23) with the corresponding outer wall of axis hole.
9, integrated mechanical sealing device as claimed in claim 1 is characterized in that: the inwall of described drive sleeve (11) is provided with O RunddichtringO (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034369 CN2911342Y (en) | 2006-05-29 | 2006-05-29 | Integrally packed mechanical sealing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034369 CN2911342Y (en) | 2006-05-29 | 2006-05-29 | Integrally packed mechanical sealing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2911342Y true CN2911342Y (en) | 2007-06-13 |
Family
ID=38133203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620034369 Expired - Fee Related CN2911342Y (en) | 2006-05-29 | 2006-05-29 | Integrally packed mechanical sealing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2911342Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847900A (en) * | 2015-05-08 | 2015-08-19 | 西安德通振动搅拌技术有限公司 | Mixer shaft end sealing device |
| CN106195276A (en) * | 2016-07-15 | 2016-12-07 | 武汉船用机械有限责任公司 | Rotary sealing appts |
| CN106321847A (en) * | 2015-06-16 | 2017-01-11 | 中国石油化工股份有限公司 | Mechanical sealing device |
| CN109372994A (en) * | 2018-11-13 | 2019-02-22 | 湖南天宏泵业制造有限公司 | A kind of adjustable type integrated mechanical sealing |
| CN109973657A (en) * | 2018-01-03 | 2019-07-05 | 双龙集团有限公司 | Lip type mechanically-sealing apparatus |
| CN110319166A (en) * | 2019-07-27 | 2019-10-11 | 绍兴市上虞荣达实业有限公司 | A kind of pusher structure |
| CN112178193A (en) * | 2020-10-10 | 2021-01-05 | 江门市新会区天府密封科技有限公司 | Single-end-face antifriction mechanical seal |
| CN112197004A (en) * | 2020-10-12 | 2021-01-08 | 江门市新会区天府密封科技有限公司 | Prevent mechanical seal subassembly of leakage |
-
2006
- 2006-05-29 CN CN 200620034369 patent/CN2911342Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847900A (en) * | 2015-05-08 | 2015-08-19 | 西安德通振动搅拌技术有限公司 | Mixer shaft end sealing device |
| CN106321847A (en) * | 2015-06-16 | 2017-01-11 | 中国石油化工股份有限公司 | Mechanical sealing device |
| CN106321847B (en) * | 2015-06-16 | 2018-07-20 | 中国石油化工股份有限公司 | Mechanically-sealing apparatus |
| CN106195276A (en) * | 2016-07-15 | 2016-12-07 | 武汉船用机械有限责任公司 | Rotary sealing appts |
| CN106195276B (en) * | 2016-07-15 | 2018-09-25 | 武汉船用机械有限责任公司 | Rotary sealing appts |
| CN109973657A (en) * | 2018-01-03 | 2019-07-05 | 双龙集团有限公司 | Lip type mechanically-sealing apparatus |
| CN109372994A (en) * | 2018-11-13 | 2019-02-22 | 湖南天宏泵业制造有限公司 | A kind of adjustable type integrated mechanical sealing |
| CN110319166A (en) * | 2019-07-27 | 2019-10-11 | 绍兴市上虞荣达实业有限公司 | A kind of pusher structure |
| CN112178193A (en) * | 2020-10-10 | 2021-01-05 | 江门市新会区天府密封科技有限公司 | Single-end-face antifriction mechanical seal |
| CN112197004A (en) * | 2020-10-12 | 2021-01-08 | 江门市新会区天府密封科技有限公司 | Prevent mechanical seal subassembly of leakage |
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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 |