CN201265548Y - Water pump sealing device - Google Patents
Water pump sealing device Download PDFInfo
- Publication number
- CN201265548Y CN201265548Y CNU2008201044717U CN200820104471U CN201265548Y CN 201265548 Y CN201265548 Y CN 201265548Y CN U2008201044717 U CNU2008201044717 U CN U2008201044717U CN 200820104471 U CN200820104471 U CN 200820104471U CN 201265548 Y CN201265548 Y CN 201265548Y
- Authority
- CN
- China
- Prior art keywords
- water pump
- seal
- water
- seal ring
- sealing 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 water pump sealing device comprising a hydroseal fixed among a water pump body, a water pump bearing and a water pump shaft. A sealing ring is arranged outside the hydroseal and is respectively in interference fit with the water pump body and the water pump shaft. Lithium base grease is infused between the sealing ring and the outer side face of the hydroseal. A supporting steel sheet is inlaid in the sealing ring, two lips are arranged at the matching position between the sealing ring and the water pump shaft, the sealing ring is in interference fit with the water pump body through the lips, and corresponding positions of the lips are hooped by tension springs. The outer side of the sealing ring and the corresponding positions of the water pump body are provided with weep holes. The sealing device of the utility model can effectively overcome the defect in the prior art that the cooling liquid leakage of the hydroseal results in the failure of the water pump bearing and negatively influences the appearance of an engine; and the utility model achieves a function of effectively preventing the leakage of the cooling liquid.
Description
Technical field
The utility model relates to a kind of engine-cooling system, relates in particular to a kind of engine water pump sealing apparatus.
Background technique
In the prior art, rely on the water pump of motor to adopt water seal to seal usually.Nitrile butadiene rubber bellows two ends in the water seal respectively with water seal seat and stationary ring sticking and, and be supported between water seal seat and the stationary ring by spring, rotating ring is crossed win by metal trim ring and water pump spindle and is cooperated, and rotates synchronously in company with water pump spindle.Rely on the elastic force of spring to fit tightly between rotating ring and the stationary ring, thereby produce sealing effect.
At present, the diesel pump water seal of the above-mentioned principle of domestic employing, usually exist poorly sealed and cause the problem of leaking, though NBS allows water seal that certain Leckage is arranged, but when having hard crystalline solid and micro-solid particle in the cooling liquid, can damage the rotating ring of water seal and the sealing surface of stationary ring gradually, the normal seepage of water seal will finally cause the fault for water seal.And after cooling liquid might immerse bearing, destroy the lubricated of bearing, thereby cause catastrophe failure such as water pump bearing high temperature dry friction fracture.Simultaneously, the seepage of water seal also can influence the outward appearance of whole motor.Along with being extensive use of of motor, people are also more and more higher to the requirement of motor appearance quality, and therefore, the normal seepage of water pump also needs to be resolved hurrily to the influence of motor outward appearance.
The model utility content
The purpose of this utility model is to reveal the defective that cooling liquid causes the water pump bearing fault and influences the motor outward appearance at water seal in the prior art, and a kind of water pump gland that can prevent that cooling liquid from leaking is provided.
Water pump gland of the present utility model comprises the water seal of being fixed between water pump body and water pump bearing and the axle, and seal ring is established in the water seal outside, seal ring respectively with water pump body and water pump spindle interference fit.
In the technique scheme, can inject lithium grease between seal ring and the water seal outer side surface; Lithium grease is near seal ring one side, injection amount be between seal ring and the water seal outer side surface volume 2/3.
In the technique scheme, stud with the support steel disc in the seal ring; Seal ring and water pump spindle cooperation place are provided with the twice lip, and seal ring is by lip and water pump body interference fit; Lip corresponding position hoop has tension spring.
In the technique scheme, spilled water hole can be offered in the corresponding position of the seal ring outside, water pump body.
In sum, adopt technique scheme, the utlity model has following beneficial effect:
1. cooling liquid is obviously suppressed through the leakage of water seal to the external world;
2. according to the length dimension characteristics of water pump spindle, rubber seal can be used in groups, further the enhanced leaktightness effect;
3. little, applied widely to the original structure change, it is low to change cost;
4. simple in structure, reliable operation.
Description of drawings
Fig. 1 is the sectional view of the utility model water pump gland;
Fig. 2 is the utility model water pump gland seal ring part partial structurtes enlarged views.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
The 1-water pump body; The 2-rubber seal; The 3-water seal;
The 4-water pump spindle; 5-seal lip; The 6-tension spring;
7-rubber body 8-Seal cage; 9-supports steel disc;
10-spilled water hole 11-water pump bearing
Embodiment
Below in conjunction with accompanying drawing water pump gland of the present utility model is elaborated.
As depicted in figs. 1 and 2, the utility model water pump gland is located in the water pump body 1, and it comprises water seal 3 and rubber seal 2.
In the water pump body 1, be provided with spilled water hole 10, described discharge opening 10 is positioned at the outside of rubber seal 2, is used for after rubber seal 2 lost efficacy, and the cooling liquid of institute's seepage can in time be discharged by spilled water hole 10, prevents the cooling liquid immersion water pump bearing 11 that leaks out.
Interference fit between rubber seal 2 and the water pump body 1, interference fit between two seals lip 5 and the water pump spindle 4.Seal lip 5 in the corresponding position by tension spring 6 and water pump spindle 4 long-term bandings, prevent seal lip 5 wearing and tearing after, and generation gap and seal failure between the water pump spindle 4.
Be provided with Seal cage 8 between rubber seal 2 and water seal 3, be marked with lithium grease in Seal cage 8, the lithium grease that is injected needs near rubber seal 2 places one side, and the injection amount of lithium grease must not surpass 2/3 of Seal cage 8 volumes.Lithium grease not only is used for lubricating between seal lip 5 and the water pump spindle 4, and certain sealing effect is also arranged for the cooling liquid that leaks out through water seal 3, have the sealing of the seal lip 5 of tension spring 6 in addition, can produce good sealing effect the cooling liquid that leaks out through water seal.
Water pump gland of the present utility model is simple in structure, and little to the original structure change, the cooling liquid that can effectively suppress to leak out through water seal is further to extraneous seepage.Use this water pump gland, can increase the working life of water pump, and can guarantee that the outward appearance of motor is unaffected.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technological scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technological scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.
Claims (7)
1, a kind of water pump gland comprises the water seal of being fixed between water pump body and water pump bearing and the axle, it is characterized in that, seal ring is established in the described water seal outside, described seal ring respectively with described water pump body and described water pump spindle interference fit.
2, water pump gland according to claim 1 is characterized in that, is marked with lithium grease between described seal ring and the water seal outer side surface.
3, water pump gland according to claim 2 is characterized in that, described lithium grease is near seal ring one side, injection amount be between seal ring and the water seal outer side surface volume 2/3.
4, according to any described water pump gland in the claim 1 to 3, it is characterized in that, stud with the support steel disc in the described seal ring.
5, according to any described water pump gland in the claim 1 to 3, it is characterized in that described seal ring and water pump spindle cooperation place are provided with the twice lip, described seal ring is by described lip and described water pump body interference fit.
6, water pump gland according to claim 5 is characterized in that, described lip corresponding position hoop has tension spring.
According to any described water pump gland in the claim 1 to 3, it is characterized in that 7, the corresponding position of the described seal ring outside, water pump body has spilled water hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201044717U CN201265548Y (en) | 2008-08-12 | 2008-08-12 | Water pump sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201044717U CN201265548Y (en) | 2008-08-12 | 2008-08-12 | Water pump sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201265548Y true CN201265548Y (en) | 2009-07-01 |
Family
ID=40831916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201044717U Expired - Fee Related CN201265548Y (en) | 2008-08-12 | 2008-08-12 | Water pump sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201265548Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400938A (en) * | 2011-12-15 | 2012-04-04 | 湖南机油泵股份有限公司 | Sluicing structure for centrifugal cooling water pump |
| CN102588341A (en) * | 2012-01-01 | 2012-07-18 | 湖北飞剑泵业有限公司 | Pump with axial helicoid water sucking chamber |
-
2008
- 2008-08-12 CN CNU2008201044717U patent/CN201265548Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400938A (en) * | 2011-12-15 | 2012-04-04 | 湖南机油泵股份有限公司 | Sluicing structure for centrifugal cooling water pump |
| CN102588341A (en) * | 2012-01-01 | 2012-07-18 | 湖北飞剑泵业有限公司 | Pump with axial helicoid water sucking chamber |
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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: 20090701 Termination date: 20150812 |
|
| EXPY | Termination of patent right or utility model |