CN207539078U - Auto pump mechanical seal - Google Patents
Auto pump mechanical seal Download PDFInfo
- Publication number
- CN207539078U CN207539078U CN201721521500.5U CN201721521500U CN207539078U CN 207539078 U CN207539078 U CN 207539078U CN 201721521500 U CN201721521500 U CN 201721521500U CN 207539078 U CN207539078 U CN 207539078U
- Authority
- CN
- China
- Prior art keywords
- ring
- quiet
- dynamic
- retainer ring
- wear ring
- 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
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Abstract
The utility model discloses a kind of auto pump mechanical seals, including moving ring assembly and static components, the moving ring assembly includes dynamic wear ring, the static components include quiet wear ring, the dynamic wear ring is abutted with quiet wear ring by end face, the static components include for the fixed quiet retainer ring of pump case, the moving ring assembly includes the dynamic retainer ring being made of stainless steel, the dynamic retainer ring includes cylindrical portion, the cylindrical portion is interference fitted by inner wall and pump shaft, the cylindrical portion is through static components and the interior annular distance of moving ring assembly, the material of the dynamic wear ring is ceramics, the material of the quiet wear ring is graphite.It is not easy to generate water leakage fault at mechanical seal, and the service life of this mechanical seal is longer, better performances using the auto pump of this mechanical seal.
Description
Technical field
The utility model is related to a kind of sealing element, more particularly to a kind of auto pump mechanical seal.
Background technology
The pump shaft of auto pump is generally established by mechanical seal and pump case and is rotatablely connected, and mechanical seal is used to prevent pump case
Interior water leaks out at pump shaft.Mechanical seal includes stationary ring, rotating ring, the spring that stationary ring and rotating ring is driven mutually to push against, and stationary ring is solid
It is sealed due on pump case and with pump case, rotating ring is fixed on pump shaft simultaneously and shaft seal, stationary ring hold mill with rotating ring by respective
Face carries out sliding friction, and stationary ring mutually pushes against to form sealing with rotating ring by spring.
Existing notification number is that the utility model patent of CN201196263Y discloses a kind of mechanically-sealing apparatus, including rotating ring
Component and static components, moving ring assembly include the rubber bellows for coordinating with shaft.If the mechanically-sealing apparatus is used
In on the pump shaft of auto pump, often in jounce condition during due to running car, and auto pump needs are born by engine
The vibrations being transmitted to, so the working environment of the mechanically-sealing apparatus is more severe, after long-term use, moving ring assembly and quiet
Lubrication state between ring assemblies is easily deteriorated, and frictional resistance increase between the two, then rubber bellows are easily with respect to pump
Axis rotates, and rubber bellows are more easy to wear, and auto pump easily generates water leakage fault at the mechanically-sealing apparatus.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of auto pump mechanical seal,
Auto pump is not easy to generate water leakage fault at mechanical seal.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of auto pump machinery
Sealing, including moving ring assembly and static components, the moving ring assembly includes dynamic wear ring, and the static components hold mill including quiet
Ring, the dynamic wear ring are abutted with quiet wear ring by end face, the static components include for the fixed quiet fixation of pump case
Ring, the moving ring assembly include the dynamic retainer ring being made of stainless steel, and the dynamic retainer ring includes cylindrical portion, and the cylindrical portion is led to
Inner wall is crossed to be interference fitted with pump shaft.
Through the above technical solutions, during installation, quiet retainer ring is fitted on pump case in corresponding mounting hole, pump shaft is filled
Installation is completed in the dynamic retainer ring of supplying, when pump shaft rotates, pump shaft drives dynamic retainer ring rotation, moves retainer ring and drives dynamic wear ring rotation
Turn, and quiet wear ring is fixed on by quiet retainer ring on pump case, dynamic wear ring is slided by end face on the end face of quiet wear ring
Formation is rotatably assorted, and keeps sealing effect, and since pump shaft and cylindrical portion are interference fitted, then pump shaft and cylindrical portion be in combination very
Securely, and sealing effect is preferable, even if dynamic rotary resistance increase between wear ring and quiet wear ring, pump shaft is not easy to moving admittedly
Determine ring to produce relative rotation, it is ensured that dynamic wear ring is in opposite sliding mode with quiet wear ring always, and dynamic wear ring holds mill with quiet
Ring is the normal work part of sliding friction, and wear-resisting property is preferable, can bear to rub for a long time, then this auto pump machinery is close
Envelope remains to keep normal work, and auto pump is not likely to produce water leakage fault.
Preferably, the cylindrical portion is through static components and the interior annular distance of moving ring assembly.
Through the above technical solutions, the length of cylindrical portion is longer, then pump shaft and the contact area of dynamic retainer ring are larger, pump shaft
It can fix more firm with dynamic retainer ring.
Preferably, the cylindrical portion is located at the expanding end formation horn mouth of static components, and the horn mouth is located at quiet solid
It is outer and the interior annular distance of quiet retainer ring can not be passed through to determine ring, the quiet wear ring is slidably connected in quiet retainer ring, described quiet to hold mill
Spring is provided between ring and quiet retainer ring, the spring drives quiet wear ring mutually to offset with dynamic wear ring.
Through the above technical solutions, the elastic force that spring is applied to quiet wear ring is transmitted on dynamic wear ring, with dynamic wear ring
Fixed dynamic retainer ring by bell-mouthed position-limiting action towards the elastic force direction of spring due to can not be moved, then the elastic force of spring
Always it acts on quiet wear ring and dynamic wear ring, the two is promoted to be in abutting state, sealing effect is preferable.
Preferably, it is arranged with flexible auxiliary seal outside the quiet wear ring and quiet retainer ring, the one of the auxiliary seal
End be fixed in quiet retainer ring and with quiet fixed ring seals, the other end of the auxiliary seal be fixed on quiet wear ring and with it is quiet
Wear ring seals.
Through the above technical solutions, auxiliary seal is flexibility, auxiliary seal has retractility in the axial direction of quiet retainer ring
Can, auxiliary seal completely cuts off the interior or exterior space of this mechanical seal, prevents the water in pump from passing through between quiet retainer ring and quiet wear ring
Fit clearance drain to the external world.
Preferably, the flexible ring that blocks is set on the horn mouth, and the inner ring for blocking ring is fixed on horn mouth
And sealed with horn mouth, the outer shroud for blocking ring offsets with quiet retainer ring.
Through the above technical solutions, block ring can stop extraneous dust and other impurities by cylindrical portion and quiet retainer ring it
Between gap enter in this mechanical seal, play the role of protect this mechanical seal.
Preferably, the flexible auxiliary spacer of sandwiched between the dynamic retainer ring and dynamic wear ring.
Through the above technical solutions, auxiliary spacer can provide flexible supporting role to move wear ring, when pump shaft generation is micro-
During the twisting of amount, auxiliary spacer can promote dynamic wear ring and quiet wear ring to remain to reliably support by elastic force and passive deformation
Tightly, leak is prevented to a certain extent.
Preferably, the quiet retainer ring is used to be arranged with sealing ring on the external annulus contacted with pump case.
Through the above technical solutions, sealing ring enhances the sealing effect between quiet retainer ring lateral wall and pump case.
Preferably, the material of the dynamic wear ring is ceramics, and the material of the quiet wear ring is graphite.
Through the above technical solutions, the dynamic wear ring of ceramic material has high wear-resisting property, the quiet of graphite material is held
Both bull ring quality is softer, is not easy to generate mutually abrasion with ceramics, and graphite has outstanding self-lubricating property, can substantially reduce
Between frictional resistance, the service life of this auto pump mechanical seal is longer, better performances.
In conclusion the utility model having the beneficial effect that in contrast to the prior art：Use the automobile water of this mechanical seal
Pump is not easy to generate water leakage fault at mechanical seal, and the service life of this mechanical seal is longer, better performances.
Description of the drawings
Fig. 1 is the stereogram of this auto pump mechanical seal, mainly protrudes the external structure of this auto pump mechanical seal；
Fig. 2 is the explosive view of this auto pump mechanical seal, mainly protrudes the internal structure of this auto pump mechanical seal；
Fig. 3 is the A-A sectional views of Fig. 1, mainly protrudes the respective outer side edges relationship of this auto pump mechanical seal.
Reference numeral：1st, static components；2nd, moving ring assembly；11st, quiet retainer ring；12nd, auxiliary seal；13rd, quiet wear ring；
21st, retainer ring is moved；22nd, auxiliary spacer；23rd, wear ring is moved；111st, quiet mounting surface；112nd, sealing ring；113rd, side is positioned；131st, ring
Slot；14th, spring；15th, protection ring；211st, cylindrical portion；212nd, mounting surface is moved；213rd, horn mouth；214th, ring is blocked.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability
Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but
As long as it is all protected in the right of the utility model by Patent Law.
As depicted in figs. 1 and 2, a kind of auto pump mechanical seal, including the static components 1 mutually fastened and moving ring assembly
2, static components 1 are included for quiet retainer ring 11 fixed with pump case, the auxiliary seal 12 being set in quiet retainer ring 11 and quiet
Wear ring 13, moving ring assembly 2 are included for the dynamic retainer ring 21 coordinated with pump shaft, the auxiliary spacer being set in dynamic retainer ring 21
22 and dynamic wear ring 23, quiet wear ring 13 abutted with dynamic wear ring 23 by end face.
As shown in Figures 2 and 3, the cross sectional shape of quiet retainer ring 11 be in J-shaped, quiet retainer ring 11 by stainless steel thin slice punching press and
Into.The external annulus of quiet retainer ring 11 is quiet mounting surface 111, and quiet mounting surface 111 is cylindrical surface, is arranged on quiet mounting surface 111 close
Seal 112, quiet mounting surface 111 are bent to form positioning close to the end of dynamic retainer ring 21 to away from the direction of quiet 11 axis of retainer ring
Side 113, the end face for positioning side 113 are vertical with quiet mounting surface 111.Quiet mounting surface 111 is for the installation with same size on pump case
Hole coordinates, and sealing ring 112 enhances the sealing effect between quiet mounting surface 111 and pump case, positions side 113 and the wall surface phase of pump case
It supports and limits quiet retainer ring 11, prevent quiet retainer ring 11 towards the mounting hole away from the direction of dynamic retainer ring 21 abjection pump case.
Quiet wear ring 13 is made of graphite, and quiet wear ring 13 is sheathed in quiet retainer ring 11 close to the end of dynamic retainer ring 21
Portion, and its axis can be slided in quiet 11 upper edge of retainer ring.Annular groove 131 is offered on the external annulus of quiet wear ring 13, makes quiet to hold mill
The external annulus of ring 13 forms stairstepping, and the external loop diameter close to quiet 11 side of retainer ring is smaller.
Auxiliary seal 12 is made of rubber, and the shape of auxiliary seal 12 for annular and is tightly attached in the J-shaped of quiet retainer ring 11
Wall.One end of auxiliary seal 12 is glued with quiet retainer ring 11, and 131 bottom wall of annular groove of the other end and quiet wear ring 13 is glued.Auxiliary
Sealing 12 has good telescopicing performance in the axial direction of quiet retainer ring 11, and auxiliary seal 12 is by the interior or exterior space of this mechanical seal
Isolation prevents the water in pump from draining to the external world by the fit clearance between quiet retainer ring 11 and quiet wear ring 13.
Spring 14 is provided between quiet wear ring 13 and quiet retainer ring 11, the both ends of spring 14 are respectively arranged with two protections
Ring 15, two protection rings 15 are butted on respectively on auxiliary seal 12.Two protection rings 15 are stainless steel pressing, two protection rings
15 spring 14 is isolated with auxiliary seal 12, and auxiliary seal 12 is destroyed in the end for preventing spring 14 sharp.Spring 14 is used to drive
Quiet wear ring 13 mutually offsets with dynamic wear ring 23, and the elastic force of spring 14 acts on auxiliary seal 12 simultaneously, by auxiliary seal 12
Both ends be pressed in respectively on quiet retainer ring 11 and quiet wear ring 13, reduce by 12 degumming of auxiliary seal probability.
The cross sectional shape of dynamic retainer ring 21 is stamped to form in J-shaped, dynamic retainer ring 21 by stainless steel thin slice.22 He of auxiliary spacer
Dynamic wear ring 23 is stacked gradually on the J-shaped madial wall of dynamic retainer ring 21, and auxiliary spacer 22 is located at dynamic wear ring 23 and dynamic solid
Between determining ring 21, three is pasted together by glue.Auxiliary spacer 22 is made of rubber, and auxiliary spacer 22 can be dynamic wear ring
23 provide flexible supporting role, when pump shaft generates micro twisting, auxiliary spacer 22 can by elastic force and passive deformation,
Dynamic wear ring 23 and quiet wear ring 13 is promoted to remain to reliably push against.The material of dynamic wear ring 23 is ceramics.
Dynamic retainer ring 21 includes integrally formed cylindrical portion 211, and cylindrical portion 211 is through static components 1 and moving ring assembly 2
Interior annular distance.The inner tube wall of cylindrical portion 211 is dynamic mounting surface 212, and it is cylindrical surface to move mounting surface 212, and the diameter for moving mounting surface 212 omits
Less than the diameter of pump shaft, move mounting surface 212 and be interference fitted with pump shaft.Cylindrical portion 211 is located at the expanding end at quiet retainer ring 11
Horn mouth 213 is formed, horn mouth 213 is located at outside quiet retainer ring 11 and can not pass through the interior annular distance of quiet retainer ring 11.Then spring 14
The elastic force for being applied to quiet wear ring 13 is transmitted on dynamic wear ring 23, with the fixed dynamic retainer ring 21 of dynamic wear ring 23 due to by
The position-limiting action of horn mouth 213 and can not be moved towards the elastic force direction of spring 14, then the elastic force of spring 14 acts on quiet hold always
On bull ring 13 and dynamic wear ring 23, promote the two in abutting state.
Rubber material is provided on horn mouth 213 blocks ring 214, and the inner ring for blocking ring 214 is fixed on horn mouth 213
And sealed with horn mouth 213, the outer shroud and quiet retainer ring 11 for blocking ring 214 offset, and block ring 214 and set elastic, the bullet
Make every effort to promote to enable to block ring 214 and be butted on always in quiet retainer ring 11.Blocking ring 214 can stop that extraneous dust and other impurities pass through circle
Gap between canister portion 211 and quiet retainer ring 11 enters in this mechanical seal, plays the role of protecting this mechanical seal.
During installation, quiet mounting surface 111 is fitted on pump case in corresponding mounting hole, pump shaft is fitted into dynamic mounting surface
Installation is completed on 212.When pump shaft rotates, pump shaft drives dynamic retainer ring 21 to rotate, and dynamic retainer ring 21 drives dynamic wear ring 23 to rotate,
And quiet wear ring 13 is fixed on by quiet retainer ring 11 on pump case, dynamic wear ring 23 is by end face on the end face of quiet wear ring 13
It slides to be formed and be rotatably assorted, and the elastic force of spring 14 reliably pushes against dynamic wear ring 23 and quiet wear ring 13, keeps sealing effect.
The dynamic wear ring 23 of ceramic material has high wear-resisting property, and 13 quality of quiet wear ring of graphite material is softer, is not easy and makes pottery
Porcelain generates mutually abrasion, and graphite has outstanding self-lubricating property, can substantially reduce frictional resistance between the two, to sum up,
The service life of this auto pump mechanical seal is longer.
When pump shaft rotates, since pump shaft and dynamic mounting surface 212 are interference fitted, then pump shaft and cylindrical portion 211 be in combination very
Securely, and sealing effect is preferable, even if dynamic rotary resistance increase between wear ring 23 and quiet wear ring 13, pump shaft be not easy to
Dynamic retainer ring 21 produces relative rotation, it is ensured that dynamic wear ring 23 is in opposite sliding mode with quiet wear ring 13 always, extends this
The service life of mechanical seal.And the length of cylindrical portion 211 is longer, pump shaft and the contact area of dynamic retainer ring 21 are larger, pump shaft
Fix more firm with dynamic retainer ring 21.
The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention
It encloses, the scope of protection of the utility model is determined by appended claim.
Claims (8)
1. a kind of auto pump mechanical seal, including moving ring assembly (2) and static components (1), the moving ring assembly (2) is including dynamic
Wear ring (23), the static components (1) include quiet wear ring (13), and the dynamic wear ring (23) passes through with quiet wear ring (13)
End face abuts, it is characterized in that：The static components (1) including for the fixed quiet retainer ring (11) of pump case, the rotating ring group
Part (2) includes the dynamic retainer ring (21) that is made of stainless steel, and the dynamic retainer ring (21) includes cylindrical portion (211), the cylinder
Portion (211) is interference fitted by inner wall and pump shaft.
2. auto pump mechanical seal according to claim 1, it is characterized in that：The cylindrical portion (211) is through stationary ring group
The interior annular distance of part (1) and moving ring assembly (2).
3. auto pump mechanical seal according to claim 2, it is characterized in that：The cylindrical portion (211) is positioned at stationary ring group
The expanding end of part (1) forms horn mouth (213), and the horn mouth (213) outside and can not pass through quiet positioned at quiet retainer ring (11)
The interior annular distance of retainer ring (11), the quiet wear ring (13) are slidably connected in quiet retainer ring (11), the quiet wear ring (13)
Spring (14) is provided between quiet retainer ring (11), the spring (14) drives quiet wear ring (13) mutual with dynamic wear ring (23)
It offsets.
4. auto pump mechanical seal according to claim 3, it is characterized in that：The quiet wear ring (13) and quiet retainer ring
(11) be arranged with flexible auxiliary seal (12) outside, one end of the auxiliary seal (12) be fixed in quiet retainer ring (11) and with
The sealing of quiet retainer ring (11), the other end of the auxiliary seal (12) be fixed on quiet wear ring (13) and with quiet wear ring (13)
Sealing.
5. auto pump mechanical seal according to claim 3 or 4, it is characterized in that：It is provided on the horn mouth (213)
Flexible blocks ring (214), and the inner ring for blocking ring (214) is fixed on horn mouth (213) and close with horn mouth (213)
Envelope, the outer shroud for blocking ring (214) offset with quiet retainer ring (11).
6. auto pump mechanical seal according to claim 3, it is characterized in that：The dynamic retainer ring (21) and dynamic wear ring
(23) the flexible auxiliary spacer of sandwiched (22) between.
7. auto pump mechanical seal according to claim 1, it is characterized in that：The quiet retainer ring (11) is used for and pump case
Sealing ring (112) is arranged on the external annulus of contact.
8. auto pump mechanical seal according to claim 1, it is characterized in that：The material of the dynamic wear ring (23) is pottery
Porcelain, the material of the quiet wear ring (13) is graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721521500.5U CN207539078U (en) | 2017-11-14 | 2017-11-14 | Auto pump mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721521500.5U CN207539078U (en) | 2017-11-14 | 2017-11-14 | Auto pump mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207539078U true CN207539078U (en) | 2018-06-26 |
Family
ID=62613662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721521500.5U Expired - Fee Related CN207539078U (en) | 2017-11-14 | 2017-11-14 | Auto pump mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207539078U (en) |
-
2017
- 2017-11-14 CN CN201721521500.5U patent/CN207539078U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180626 Termination date: 20181114 |