CN205047845U - Quiet ring subassembly among mechanical seal - Google Patents
Quiet ring subassembly among mechanical seal Download PDFInfo
- Publication number
- CN205047845U CN205047845U CN201520827628.9U CN201520827628U CN205047845U CN 205047845 U CN205047845 U CN 205047845U CN 201520827628 U CN201520827628 U CN 201520827628U CN 205047845 U CN205047845 U CN 205047845U
- Authority
- CN
- China
- Prior art keywords
- spring
- ring
- bellows rubber
- stationary ring
- mechanical seal
- 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 - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000003068 static effect Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a quiet ring subassembly among mechanical seal, including quiet ring (1), bellows rubber support (2), spring holder (3) and spring (7), quiet ring (1) cup joint on the transmission shaft, the one end of bellows rubber support (2) and quiet ring (1) close -fitting, the other end cup joints on the transmission shaft, bellows rubber support (2) the one end inner wall of keeping away from quiet ring (1) still be equipped with with bellows rubber support (2) even abrupt lip ring (4) as an organic whole, the suddenly inner wall and transmission shaft sealing connection of lip ring (4). After the structure, had a sealing connection relation between bellows rubber support and the transmission shaft more than adopting, consequently, made whole mechanical seal's sealing performance greatly increased.
Description
Technical field
The utility model relates to the technical field of Sealing, is specifically the static components in a kind of mechanical seal.
Background technique
In the equipment such as centrifugal pump, compressor, because transmission shaft is applied in inside and outside equipment, a circumferential clearance is there is between axle and equipment, medium in equipment passes through this gap to external leakage, if equipment internal pressure is lower than barometric pressure, then air is to equipment internal leakage, and one therefore must be had to stop the gland seal device leaked.Mechanical seal is exactly wherein a kind of gland seal device, it cries end face seal again, it is by least one pair of end face perpendicular to spin axis under hydrodynamic pressure and the effect of compensation mechanism elastic force or magnetic force and the cooperation of auxiliary seal, keeps laminating and relative sliding and device that the anti-fluid that forms is leaked.Mechanical seal comprises static components, moving ring assembly and spring, wherein static components be to be socketed on transmission shaft and close-fitting in the mounting hole of the pump housing, moving ring assembly close-fitting, on transmission shaft, carries out backlash compensation by end face seal by spring between static components and moving ring assembly.In prior art, static components generally includes stationary ring, stationary seat, bellows and spring, stationary ring is socketed on transmission shaft, outer ring close-fitting is in one end of bellows, with stationary seat close-fitting outside the bellows of this joint, the other end and transmission shaft are socketed, and one end and the spring seat of spring push against, and the other end and the pump housing push against.Its working principle is, an end face of stationary ring and an end face of rotating ring can be made to keep fitting by the elastic force of spring, during work, transmission shaft drives moving ring assembly to rotate, and stationary ring does not rotate, thus flow through in the gap of prevention medium driven torus and stationary ring, play the effect of sealing.But, there is following problem in the static components of this structure: because stationary ring and rotating ring are by forming end face seal between the rotation of rotating ring and stationary ring, also make between stationary ring and the end face of rotating ring, there is a mutual active force by the elastic force of spring simultaneously, but, when transmission shaft stops operating, still certain gap can be there is between stationary ring and the end face of rotating ring, like this, medium still likely flows into inner by this gap from outside, or flow into stationary ring inside from the gap of axle and rotating ring cooperation place, thus affect the sealing of mechanical seal.
Model utility content
Technical problem to be solved in the utility model is, provides the static components in the better mechanical seal of a kind of sealability.
For solving the problems of the technologies described above, static components in the mechanical seal that the utility model provides, comprise stationary ring, bellows rubber standoff, spring seat and spring, described stationary ring is socketed on transmission shaft, one end of bellows rubber standoff and stationary ring close-fitting, the other end is socketed on transmission shaft, one end that spring seat close-fitting is connected with stationary ring in bellows rubber standoff, one end and the spring seat of spring push against, and the other end and the pump housing push against; Described bellows rubber standoff is also provided with away from one end inwall of stationary ring the prominent lip ring be connected as a single entity with bellows rubber standoff, and the inwall of prominent lip ring is connected with drive shaft seal.
The inner diameter size of described prominent lip ring is less than the internal diameter size of bellows rubber standoff away from the port of stationary ring one end, and prominent lip ring be tilt to stationary ring one end close raised.
Described bellows rubber standoff is provided with annular groove away from one end outer wall of stationary ring, is connected with metallic support circle in annular groove.
Described spring and the joint of the pump housing are provided with throw-out collar, and spring is volute spring, and small size one end of spring is connected on throw-out collar, and large scale one end of spring is connected on spring seat, and throw-out collar is fixedly connected in the pump housing.
After adopting above structure, the utility model compared with prior art, has following advantage:
1) owing to having set up a prominent lip ring on the inwall of bellows rubber standoff, the inwall of this prominent lip ring is connected with drive shaft seal, like this, the relation that is tightly connected just has been had between bellows rubber standoff and transmission shaft, even if in the transmission shaft slow-speed of revolution or when stopping operating, bellows rubber standoff also and between transmission shaft has individual sealing relationship, therefore, the sealability of whole mechanical seal is increased greatly;
2) prominent lip ring design becomes the close structure that to tilt to stationary ring place, is that therefore, according to mechanics principle, this designed reliability is better because medium likely can the gap at driven torus place inwardly flow into;
3) after being provided with metallic support circle on one end outer wall of bellows rubber standoff away from stationary ring, add the intensity of bellows rubber standoff, bellows rubber standoff operationally can not be deformed and cause the inefficacy of static components in whole mechanical seal;
4) in the pump housing, being provided with throw-out collar, making spring seat be connected on throw-out collar, is to more be convenient to processing and assembling.
Accompanying drawing explanation
Fig. 1 is the structural representation of the static components in the utility model mechanical seal.
Fig. 2 is the structure for amplifying schematic diagram in A portion in Fig. 1.
Wherein: 1, stationary ring; 2, bellows rubber standoff; 3, spring seat; 4, prominent lip ring; 5, annular groove; 6, metallic support circle; 7, spring; 8, throw-out collar.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
From the structural representation of the static components in the utility model mechanical seal shown in Fig. 1 and Fig. 2, it comprises stationary ring 1, bellows rubber standoff 2, spring seat 3 and spring 7, described stationary ring 1 is socketed on transmission shaft, one end of bellows rubber standoff 2 and stationary ring 1 close-fitting, the other end is socketed on transmission shaft, one end that spring seat 3 close-fitting is connected with stationary ring 1 in bellows rubber standoff 2, one end and the spring seat 3 of spring 7 push against, and the other end and the pump housing push against.Described bellows rubber standoff 2 is also provided with away from one end inwall of stationary ring 1 the prominent lip ring 4 be connected as a single entity with bellows rubber standoff 2, and the inwall of prominent lip ring 4 is connected with drive shaft seal.
The inner diameter size of described prominent lip ring 4 is less than the internal diameter size of bellows rubber standoff 2 away from the port of stationary ring 1 one end, and prominent lip ring 4 is close raised for tilting to stationary ring 1 one end.
Described bellows rubber standoff 2 is provided with annular groove 5 away from one end outer wall of stationary ring 1, is connected with metallic support circle 6 in annular groove 5.
Described spring 7 is provided with throw-out collar 8 with the joint of the pump housing, and spring 7 is volute spring, and small size one end of spring 7 is connected on throw-out collar 8, and large scale one end of spring 7 is connected on spring seat 3, and throw-out collar 8 is fixedly connected in the pump housing.
The above; it is only the better feasible exemplifying embodiment of the utility model; therefore interest field of the present utility model can not namely be limited to; concerning those of ordinary skill in the art, other various corresponding changes that all utilization the technical solution of the utility model and technical conceive are made all should belong within the protection domain of the utility model claim.
Claims (4)
1. the static components in a mechanical seal, comprise stationary ring (1), bellows rubber standoff (2), spring seat (3) and spring (7), described stationary ring (1) is socketed on transmission shaft, one end of bellows rubber standoff (2) and stationary ring (1) close-fitting, the other end is socketed on transmission shaft, one end that spring seat (3) close-fitting is connected with stationary ring (1) in bellows rubber standoff (2), one end and the spring seat (3) of spring (7) push against, and the other end and the pump housing push against; It is characterized in that: described bellows rubber standoff (2) is also provided with away from one end inwall of stationary ring (1) the prominent lip ring (4) be connected as a single entity with bellows rubber standoff (2), the inwall of prominent lip ring (4) is connected with drive shaft seal.
2. the static components in mechanical seal according to claim 1, it is characterized in that: the inner diameter size of described prominent lip ring (4) is less than the internal diameter size of bellows rubber standoff (2) away from the port of stationary ring (1) one end, and prominent lip ring (4) is close raised for tilting to stationary ring (1) one end.
3. the static components in mechanical seal according to claim 1, it is characterized in that: described bellows rubber standoff (2) is provided with annular groove (5) away from one end outer wall of stationary ring (1), is connected with metallic support circle (6) in annular groove (5).
4. the static components in mechanical seal according to claim 1, it is characterized in that: described spring (7) is provided with throw-out collar (8) with the joint of the pump housing, spring (7) is volute spring, and small size one end of spring (7) is connected on throw-out collar (8), large scale one end of spring (7) is connected on spring seat (3), and throw-out collar (8) is fixedly connected in the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827628.9U CN205047845U (en) | 2015-10-23 | 2015-10-23 | Quiet ring subassembly among mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827628.9U CN205047845U (en) | 2015-10-23 | 2015-10-23 | Quiet ring subassembly among mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047845U true CN205047845U (en) | 2016-02-24 |
Family
ID=55341424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520827628.9U Expired - Fee Related CN205047845U (en) | 2015-10-23 | 2015-10-23 | Quiet ring subassembly among mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047845U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697789A (en) * | 2016-04-27 | 2016-06-22 | 苏州富强科技有限公司 | Double-hardness sealing ring |
| WO2018059249A1 (en) * | 2016-09-30 | 2018-04-05 | 桂林端面油封科技有限公司 | Axial lip sealing device for rotating shaft |
-
2015
- 2015-10-23 CN CN201520827628.9U patent/CN205047845U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697789A (en) * | 2016-04-27 | 2016-06-22 | 苏州富强科技有限公司 | Double-hardness sealing ring |
| CN105697789B (en) * | 2016-04-27 | 2018-03-06 | 苏州富强科技有限公司 | Double hardness sealing rings |
| WO2018059249A1 (en) * | 2016-09-30 | 2018-04-05 | 桂林端面油封科技有限公司 | Axial lip sealing device for rotating shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 |