CN201963581U - High alloy wear-resisting shaft sleeve assembly device - Google Patents
High alloy wear-resisting shaft sleeve assembly device Download PDFInfo
- Publication number
- CN201963581U CN201963581U CN2011200639411U CN201120063941U CN201963581U CN 201963581 U CN201963581 U CN 201963581U CN 2011200639411 U CN2011200639411 U CN 2011200639411U CN 201120063941 U CN201120063941 U CN 201120063941U CN 201963581 U CN201963581 U CN 201963581U
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- China
- Prior art keywords
- high alloy
- sealing lip
- rotating shaft
- stationary ring
- wear sleeve
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Abstract
The utility model relates to a high alloy wear-resisting shaft sleeve assembly device which comprises a rotating shaft. The device is characterized in that the front end of the rotating shaft is provided with a back blade, and a subsidiary impeller is arranged at the back of the back blade. Meanwhile, a static ring is arranged at the back of the subsidiary impeller, and a self-fastening type seal assembly is arranged on the static ring. Furthermore, the device can be cooperatively used with the subsidiary impeller, so that a perfect seal effect can be obtained, the existing liquid seal with various types can be replaced, and the device can be widely applicable to the machine such as a liquid transport pump, a stirrer and the like.
Description
Technical field
The utility model relates to a kind of pump matching component, relates in particular to a kind of high alloy anti-wear sleeve composite set.
Background technique
With regard to existing self-tightening parking sealing arrangement, when machine run, sub-propeller drives the parking sealer rotation, because action of centrifugal force, the external cylindrical surface of sealing lip and stationary ring disengages, and at this moment, prevents that the task of leak of liquid from being finished by sub-propeller.When machine stopped operating, the sealing lip of parking sealer restored to the original state under the resilient force of self, encircled on the external cylindrical surface of stationary ring, formed to stop the sealing of leak of liquid to be paid.Simultaneously between stationary ring and fixed block, also be provided with " O " RunddichtringO, disclosed a kind of new sealing thought, started new sealing means, for the technical development of parking sealer contributes.But this parking sealer and imperfection, as long as analyze a little, we just can find the deficiency of its existence.One makes the sealing lip of this parking sealer produce the centrifugal force of radial displacement, only is the quality of sealing lip self, again because the quality of sealing lip is less and diameter is limited, therefore, have only machine to reach enough rotating speeds, sealing lip could break away from the external cylindrical surface of stationary ring.Promptly at the start-up course and the docking process of machine, the outer cylinder surface friction time of sealing lip and stationary ring is long, serious wear, and promptly the life-span of sealing is short.Because this parking sealer is to be contained on the sub-propeller, belong to built-in type again, the disassembling, assembling and replacing trouble is not easy to maintenance.Its two, the installing space of parking sealer is subjected to the restriction of sub-propeller, has only when sub-propeller is big, could pacify can hold the parking sealer with certain radial dimension, that is to say that the application area of this parking sealer is subjected to certain restriction.Its three, this parking sealer removes the seal point that itself is had, and promptly between sealing lip and the stationary ring and outside the installation periphery of annular supporter, has also increased the seal point between a stationary ring and the fixed block, as " O " RunddichtringO in the accompanying drawing two.Promptly many leakage channels have increased the sealing position.And any one causes seal break-off because of burn into is aging, extruding etc., all causes whole parking sealer to lose efficacy.The sealing at the installation periphery place of especially annular supporter, because the diameter of sealing surface is big, it is more difficult to obtain sealing reliably.That is to say the poor reliability of this parking sealer.They are four years old, because whole parking sealer is immersed in the liquid medium, certainly will will be subjected to the burn into of the medium influence of washing away and increase the possibility of destruction, particularly strong when the corrosivity of medium, contain solid impurity or temperature when higher, the influence that is subjected to is even more serious, and the life-span of sealing will reduce widely.
The model utility content
The purpose of this utility model is to overcome the above problem that prior art exists, and a kind of high alloy anti-wear sleeve composite set is provided.
For realizing the purpose of this utility model high alloy anti-wear sleeve composite set, include rotating shaft, wherein: described rotating shaft head end is provided with back blade, is provided with sub-propeller behind the described back blade; Behind the described sub-propeller stationary ring is installed; The self-energized seal assembly is installed on the described stationary ring.
Further, above-mentioned high alloy anti-wear sleeve composite set, wherein, described self-energized seal assembly includes sealing lip, and described sealing lip is set in the rotating shaft, and contacts with stationary ring; Described sealing lip outer periphery is equipped with circular connector.
Further, above-mentioned high alloy anti-wear sleeve composite set wherein, is extended with annular compensating part on the described circular connector.
Further, above-mentioned high alloy anti-wear sleeve composite set, wherein, described circular connector periphery is around the weight set thing is installed.
Again further, above-mentioned high alloy anti-wear sleeve composite set wherein, is equipped with fastening piece behind the described circular connector.
Adopt technical solutions of the utility model, following advantage arranged:
1, because the utility model is the parking sealer of external mounted, be not subjected to the restriction of sub-propeller size, so applied range.Simultaneously, do not need centering and centering during assembling, be easy to disassembling, assembling and replacing, be convenient to maintenance.
2, owing to be provided with suitable mass on the circular connector excircle, therefore the cylndrical surface of sealing lip and stationary ring is disengaged, the fretting wear of sealing lip is greatly reduced, improved the working life of parking sealer.
3, the utility model has only between sealing lip and the stationary ring and two seal points between fastening piece and the rotating shaft, has lacked the seal point between a stationary ring and the fixed block compared to prior art, i.e. " O " RunddichtringO in the accompanying drawing two.Reduced by a seal point, that is to say and reduced by a channel that may leak.And fastening piece is with enough magnitude of interference or utilize other locking element to be fixedly mounted in the rotating shaft.Therefore, the sealing at this place is very reliable.The reliability that is to say this parking sealer is big.
4, because this parking sealer is an external mounted, has only contact medium in the Seal cage, than the built-in type parking sealer that is fully immersed in the liquid medium, operating conditions obtains comparatively satisfied improvement, made by same material, under the identical operating conditions, the life-span is longer.
5, the utility model can be by elastic material mold pressing once-through, and easy to manufacture, cost is low.
The purpose of this utility model, advantage and characteristics will illustrate by following preferential embodiment's non-limitative illustration and explain that these embodiments only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 be high alloy anti-wear sleeve composite set partly cut open organigram.
The implication of each reference character is as follows among the figure:
1 sealing lip, 2 mass
3 circular connectors, 4 annular compensating parts
5 fastening pieces, 6 stationary rings
7 rotating shafts, 8 sub-propellers
9 back blades
Embodiment
High alloy anti-wear sleeve composite set as shown in Figure 1 includes rotating shaft 7, and its specialization is: rotating shaft 7 head ends that the utility model adopted are provided with back blade 9.Corresponding is to be provided with sub-propeller 8 behind back blade 9 with it.The effect of sub-propeller 8 and back blade 9 all is that the liquid in the pump chamber is produced back-pressure, and the liquid top of desiring along the clearance leakage between rotating shaft 7 and sub-propeller 8 bonnets is got back in the pump chamber, promptly forms dynamic seal.Simultaneously, stationary ring 6 is installed behind sub-propeller 8; On the described stationary ring 6 the self-energized seal assembly is installed.
In conjunction with the utility model one preferred implementation, the self-energized seal assembly of employing includes sealing lip 1.Specifically, be set in the rotating shaft 7, and contact with stationary ring 6 at sealing lip 1.Simultaneously, sealing lip 1 outer periphery is equipped with circular connector 3.And, be extended with annular compensating part 4 on the circular connector 3 that the utility model adopts.Consider the stability of running, around the weight set thing is installed, fastening piece 5 is installed behind circular connector 3 in circular connector 3 peripheries.
Further, sealing lip 1 amplexis is paid in the external cylindrical surface formation sealing of stationary ring 6, fastening piece 5 is installed on the revolving part, and circular connector 3 and annular compensating part 4 are set between sealing lip 1 and annular fastener 5, can all dispose weight on the outer peripheral surface of circular connector 3 with claiming, by the mutually corresponding molded integral body that becomes of whippy material, be loaded on the outside of the fixed block that revolving part penetrates outward.If fastening piece 5 is fixedly mounted in the rotating shaft 7, stationary ring 6 is arranged on the fixed block outside that rotating shaft 7 penetrates, closely amplexis is on the external cylindrical surface of stationary ring 6 for sealing lip 1, and the internal diameter of fastening piece 5 is not more than the lip limit internal diameter of sealing lip 1, better effects if then of the present utility model.
Whether mass 2 is provided with and mass 2 adopts the material of what proportion, depends on factors such as the diameter of rotating shaft 7 and rotating speed.The form of mass 2 can be spherical, it also can be cylindrical or other form, but no matter be the mass 2 of what form, the barycenter of mass 2 should be in one plane, and this centroidal planes should be between the plane, lip limit of the plane of cutting sealing lip 1 and sealing lip 1.Like this, can obtain better sealing effect.
Sealing principle of the present utility model and seal-moving process are such, fastening piece 5 is with enough magnitude of interference or utilize other locking element to be fixedly mounted in the rotating shaft 7, under static state, sealing lip 1 with suitable magnitude of interference closely amplexis on the external cylindrical surface of stationary ring 6.When rotating shaft 7 is rotated, because the centrifugal force that mass 2, circular connector 3 and sealing lip 1 itself produce, make sealing lip 1 produce certain radial displacement and disengage with stationary ring 6, avoid fretting wear and friction power consumption.Compensated loop is radially upheld the influence that compensation centrifugal force produces fastening piece 5 with it simultaneously, thereby fastening piece 5 is anchored in the rotating shaft 7 all the time.When rotating shaft 7 decelerations stopped operating, centrifugal force disappeared, and under the resilient force of material, annular compensating part 4 restores to the original state, and sealing lip 1 resets.Simultaneously, because the wall of sealing lip 1 becomes certain included angle with the axis of stationary ring 6, hydrostatic pressure acts on the internal face of sealing lip 1 in the Seal cage, sealing lip 1 is held tightly voluntarily, to form reliable parking sealer on stationary ring 6.But, want to make parking sealer to obtain desirable self-tightening effect and enough intensity, the angle of two walls of sealing lip 1 and stationary ring 6 axis should be within certain scope, usually a side wall surface that contacts with liquid and the angle of stationary ring 6 axis are 20 ° to 45 °, when the angle of opposite side wall and stationary ring 6 axis is 20 ° to 30 °, just can obtain desirable self-tightening effect and enough intensity.
By above-mentioned character express also in conjunction with the accompanying drawings as can be seen, following advantage is arranged behind employing the utility model:
1, because the utility model is the parking sealer of external mounted, be not subjected to the restriction of sub-propeller size, so applied range.Simultaneously, do not need centering and centering during assembling, be easy to disassembling, assembling and replacing, be convenient to maintenance.
2, owing to be provided with suitable mass on the circular connector excircle, the sealing lip 1 and the cylndrical surface of stationary ring are disengaged, the fretting wear of sealing lip 1 is greatly reduced, improved the working life of parking sealer.
3, the utility model has only between sealing lip 1 and the stationary ring and two seal points between fastening piece and the rotating shaft, has lacked the seal point between a stationary ring and the fixed block compared to prior art, i.e. " O " RunddichtringO in the accompanying drawing two.Reduced by a seal point, that is to say and reduced by a channel that may leak.And fastening piece is with enough magnitude of interference or utilize other locking element to be fixedly mounted in the rotating shaft.Therefore, the sealing at this place is very reliable.The reliability that is to say this parking sealer is big.
4, because this parking sealer is an external mounted, has only contact medium in the Seal cage, than the built-in type parking sealer that is fully immersed in the liquid medium, operating conditions obtains comparatively satisfied improvement, made by same material, under the identical operating conditions, the life-span is longer.
5, the utility model can be by elastic material mold pressing once-through, and easy to manufacture, cost is low.
Certainly, more than only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.In addition to the implementation, the utility model can also have other mode of execution.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop within the utility model scope required for protection.
Claims (5)
1. high alloy anti-wear sleeve composite set includes rotating shaft, it is characterized in that: described rotating shaft head end is provided with back blade, is provided with sub-propeller behind the described back blade; Behind the described sub-propeller stationary ring is installed; The self-energized seal assembly is installed on the described stationary ring.
2. high alloy anti-wear sleeve composite set according to claim 1 is characterized in that: described self-energized seal assembly includes sealing lip, and described sealing lip is set in the rotating shaft, and contacts with stationary ring; Described sealing lip outer periphery is equipped with circular connector.
3. high alloy anti-wear sleeve composite set according to claim 2 is characterized in that: be extended with annular compensating part on the described circular connector.
4. high alloy anti-wear sleeve composite set according to claim 2 is characterized in that: described circular connector periphery is around the weight set thing is installed.
5. high alloy anti-wear sleeve composite set according to claim 2 is characterized in that: behind the described circular connector fastening piece is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200639411U CN201963581U (en) | 2011-03-11 | 2011-03-11 | High alloy wear-resisting shaft sleeve assembly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200639411U CN201963581U (en) | 2011-03-11 | 2011-03-11 | High alloy wear-resisting shaft sleeve assembly device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963581U true CN201963581U (en) | 2011-09-07 |
Family
ID=44526116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200639411U Expired - Fee Related CN201963581U (en) | 2011-03-11 | 2011-03-11 | High alloy wear-resisting shaft sleeve assembly device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678606A (en) * | 2011-03-11 | 2012-09-19 | 张家港市飞浪泵阀有限公司 | High-alloy wear-resistance shaft sleeve combined device |
-
2011
- 2011-03-11 CN CN2011200639411U patent/CN201963581U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678606A (en) * | 2011-03-11 | 2012-09-19 | 张家港市飞浪泵阀有限公司 | High-alloy wear-resistance shaft sleeve combined device |
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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: 20110907 Termination date: 20160311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |