CN2786329Y - Built-in spring supporting type rubber corrugated pipe - Google Patents
Built-in spring supporting type rubber corrugated pipe Download PDFInfo
- Publication number
- CN2786329Y CN2786329Y CN 200420073435 CN200420073435U CN2786329Y CN 2786329 Y CN2786329 Y CN 2786329Y CN 200420073435 CN200420073435 CN 200420073435 CN 200420073435 U CN200420073435 U CN 200420073435U CN 2786329 Y CN2786329 Y CN 2786329Y
- Authority
- CN
- China
- Prior art keywords
- spring
- corrugated pipe
- ring
- seal
- rubber corrugated
- 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
Images
Landscapes
- Mechanical Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a built-in spring supporting type rubber corrugated pipe which is used for the mechanical seal in a centrifugal pump, which is composed of a pump shaft (1), a spring seat (2), a rubber corrugated pipe (3), a moving ring (4), a stationary ring (5), a pump body (6), a sealing ring (7) for the stationary ring (6), a mechanical seal press cover (8), a screw bolt (9), a sealing ring (10) for the spring seat (3), a spring (11), a locking screw hole (12) and a locking screw (13), wherein the elasticity of the rubber corrugated pipe is poor, the spring is installed inside the corrugated pipe, the seal point of the original contact surface of the lower surface of the moving ring and a shaft is moved to the contact surface of the spring seat and the pump shaft; thus, the moving seal of the point is changed into static seal. The gap between the moving ring and the shaft is one to two millimeters; thus, the mechanical seal has a small amount of leaked liquid, the diameter of the shaft can be enlarged after the formation of scale, the spring supporting the corrugated pipe to carry out displacement can not be impeded and the abrasion of the end surface can be compensated. The utility model has simple structure, and the service life is extended by five to seven times than the service life of the utility model that the seal is carry out by the spring alone.
Description
Technical field: the utility model discloses a kind of built-in spring supporting type rubber corrugated pipe that is used for the sealing of centrifugal pump axle head.
Technical background: at present, oil or other industry are applied to the mechanical seal that is sealed into of centrifugal pump axle head, and it consists of spring seat, spring, O-ring seal, rotating ring and stationary ring.In the use, the pressure of resilient member (spring) and sealing medium produces suitable impacting force on the contact surface of rotating ring that rotates and stationary ring, two end faces are fitted tightly reach sealing purpose.Because a small amount of leakage of institute's sealing medium after residual small amount of calcium material fouling on the pump shaft, increases shaft diameter, has hindered the thrust of spring, because of rotating ring can not move axially compensation, causes the mechanical seal end surface excesssive gap to make seal failure.
The utility model content: the purpose of this utility model is a kind of built-in spring supporting type rubber corrugated pipe that is used for the sealing of centrifugal pump axle head of design.
The utility model is realized in the following manner: the spring seat of repacking mechanical seal, on the surface of contact of spring seat and axle, install a rubber seal additional, and install rubber corrugated pipe additional in the spring outside, because of the rubber corrugated pipe poor flexibility, spring is installed in the bellows inboard.The gap 1-2 millimeter of increase machine envelope rotating ring internal diameter and axle, stop because of the leakage of mechanical seal rubbing surface medium, fouling hinders the nose balance of the thrust of spring to machine end-blocking surface wear after the diameter of axle is increased, thereby plays the effect to bellows support and dynamic and static ring friction nose balance.This sealing life cycle is compared with preceding sealing and can be improved 5-7 doubly.
Describe in further detail below in conjunction with a pair of this device of view:
Description of drawings: the built-in spring supporting type rubber corrugated pipe of centrifugal pump axle head sealing by:
(1) pump shaft (2) spring seat (3) rubber corrugated pipe (4) rotating ring (5) stationary ring (6) pump housing (7) spring seat seal ring (8) machine sealed cover (9) bolt (10) stationary ring seal ring (11) spring (12) locking screw (13) lock screw
Specific embodiment: pump shaft (1) is one and is contained in the interior solid cylinder steel of the pump housing (6) body, rubber bellows seal is installed thereon.Rubber corrugated pipe (3) is a band U type fold tubbiness rubber pipe, and two ends are type.
Spring seat (2) is an open circles ring body that the centre is with holes.Outer sidetracking system 2-4 the locking in its upper end screw (12) is made internal thread, is locked screw in lock screw (13) screw-in of screw-internal thread fit in its hole, spring seat is fixed on the pump shaft.Spring seat middle inside system one seal groove, seal ring (7) is installed in the groove, seal ring is the O type circle that has rubber to make, and plays the static seal of spring seat between pump shaft.System one circumferential groove in the middle of spring seat lower end surface, rotating ring (4) upper-end surface, spring (11) is packed in the rubber corrugated pipe, spring is the screw type stage clip, again the rubber corrugated pipe two ends are embedded circumferential groove, it is whole to make spring seat, rubber corrugated pipe, rotating ring form a sealing, determine that according to amount of spring compression the position of spring seat on axle lock with lock screw, realize the motive sealing that contacts between rotating ring and the stationary ring, prevent dielectric leakage in the pump.Rotating ring (4), stationary ring (6) are the ring bodies by particulate metal made, stationary ring is installed below the rotating ring, surface of contact between rotating ring and the stationary ring is a motive sealing face, junctor sealed cover (8) below the stationary ring, the machine sealed cover is oblate steel body, both sides system screw, on the pump housing (6) lower end surface, the pump housing is castiron scroll casing shape cylinder body by bolt (9) fixation machine sealed cover.Stationary ring seal ring (10) is the 0 type circle that has rubber to make, and is installed on the surface of contact of pump housing lower end surface and machine sealed cover.Effect is that the surface of contact that prevents interior medium slave sealed cover of pump and pump housing lower end leaks.
Working principle: when pump shaft rotates, drive the rotating ring rotation by lock screw and spring seat, spring, rubber corrugated pipe.Stationary ring is fixed in the machine sealed cover and is installed on the pump housing.Rotating ring produces minute movement vertically under spring promotes when sealing surface wear, reaches certain compensation ability.
Install: on the pump shaft of pump filler culvert place, determine to shoot the position of spring abutment on pump shaft, mounting spring seat, spring seat seal ring by the calculating of decrement.Mounting spring, rubber corrugated pipe on spring seat are installed in rotating ring on spring and the rubber corrugated pipe again, the stationary ring seal ring is installed on stationary ring and is pressed in the machine sealed cover, are fixed by bolts on the pump case, can finish.Program of unloading and installation are in contrast.
Claims (2)
1, a kind of built-in spring formula rubber corrugated pipe that is used for the sealing of centrifugal pump axle head: form by (1) pump shaft (2) spring seat (3) rubber corrugated pipe (4) rotating ring (5) stationary ring (6) pump housing (7) stationary ring seal ring (8) machine sealed cover (9) bolt (10) spring seat seal ring (11) spring (12) locking screw (13) lock screw, it is characterized in that: spring (12) is installed in bellows (4) inboard, and the rotating ring of centrifugal pump increases the 1-2 millimeter with the gap of axle.
2, by the built-in spring formula rubber corrugated pipe of claim 1 regulation, it is characterized in that: the surface of contact move on to spring seat and pump shaft below the rotating ring with the surface of contact dynamic sealing point of axle makes the sealing of this point change static seal into by motive sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420073435 CN2786329Y (en) | 2004-07-20 | 2004-07-20 | Built-in spring supporting type rubber corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420073435 CN2786329Y (en) | 2004-07-20 | 2004-07-20 | Built-in spring supporting type rubber corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786329Y true CN2786329Y (en) | 2006-06-07 |
Family
ID=36774903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420073435 Expired - Fee Related CN2786329Y (en) | 2004-07-20 | 2004-07-20 | Built-in spring supporting type rubber corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786329Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705511A (en) * | 2012-05-05 | 2012-10-03 | 江阴祥盛纺印机械制造有限公司 | Sealing structure for sizing roller of stock tank of sizing machine |
| CN103842660A (en) * | 2011-08-11 | 2014-06-04 | Itt制造企业有限责任公司 | Pump shaft seal using sealing rings and a bellows for retention of bearing lubricant |
| CN107387754A (en) * | 2017-07-25 | 2017-11-24 | 盐城美希密封件有限公司 | A kind of automobile static seal oil jacket device |
-
2004
- 2004-07-20 CN CN 200420073435 patent/CN2786329Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103842660A (en) * | 2011-08-11 | 2014-06-04 | Itt制造企业有限责任公司 | Pump shaft seal using sealing rings and a bellows for retention of bearing lubricant |
| CN102705511A (en) * | 2012-05-05 | 2012-10-03 | 江阴祥盛纺印机械制造有限公司 | Sealing structure for sizing roller of stock tank of sizing machine |
| CN107387754A (en) * | 2017-07-25 | 2017-11-24 | 盐城美希密封件有限公司 | A kind of automobile static seal oil jacket device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209671613U (en) | Dynamic compensation type seal circle | |
| CN201196127Y (en) | Servomotor | |
| CN2786329Y (en) | Built-in spring supporting type rubber corrugated pipe | |
| CN1821602A (en) | High performance water lubricating mechanical driving system | |
| CN102780304A (en) | Mechanical seal structure | |
| CN1847706A (en) | Wadding seal structure | |
| CN201318287Y (en) | Oil-free scroll compressor of anti-rotation and flexible mechanism | |
| CN201651328U (en) | Mechanical seal device convenient to disassemble and assemble | |
| CN2861634Y (en) | Shaft sealing board for actuating device | |
| CN2821302Y (en) | External built-in inner for type mechanical seal device | |
| CN201129293Y (en) | High-power high-pressure plunger pump lubricating system dynamic seal apparatus | |
| CN201963511U (en) | Air compressor | |
| CN2924097Y (en) | Mechanical seal for sand-slurry pump | |
| CN2866801Y (en) | Servo rotary offset blow-out preventing sealing wellhead apparatus | |
| CN203906790U (en) | Mechanical seal with self-lubrication property | |
| CN2050913U (en) | Seal unit for stopping motion of centrifugal machine | |
| CN1824980A (en) | Air bag valve | |
| CN201396536Y (en) | Rotary sealing joint | |
| CN219734212U (en) | Novel carbocycle sealing device of structure | |
| CN209925617U (en) | Packing sealing device | |
| CN2391064Y (en) | External butterfly non-return valve of axial displacement limiting mechanism | |
| CN207229446U (en) | A kind of submerged pump bearing housing | |
| CN212509525U (en) | Following floating mechanical seal | |
| CN2208095Y (en) | Smooth rod sealer | |
| CN215110509U (en) | Oil-gas isolation seal for roller |
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 |