CN203114718U - O-shaped seal ring structure for shaft sleeve of double suction pump - Google Patents
O-shaped seal ring structure for shaft sleeve of double suction pump Download PDFInfo
- Publication number
- CN203114718U CN203114718U CN 201220736545 CN201220736545U CN203114718U CN 203114718 U CN203114718 U CN 203114718U CN 201220736545 CN201220736545 CN 201220736545 CN 201220736545 U CN201220736545 U CN 201220736545U CN 203114718 U CN203114718 U CN 203114718U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- impeller
- suction pump
- ring structure
- major axis
- 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 relates to an O-shaped seal ring structure for shaft sleeves of a double suction pump. The O-shaped seal ring structure comprises an impeller sleeved on a rotary shaft and two long shaft sleeves, wherein the impeller is positioned between the two long shaft sleeves. The O-shaped seal ring structure is characterized in that an annular gap is arranged in the inner surface of the end part, far from the impeller end, of each long shaft sleeve, an annular slot body is formed by the annular gaps and the rotary shaft, and the seal ring is positioned in the annular slot body. The O-shaped seal ring structure for shaft sleeves of the double suction pump has the advantages that machining is simple, assembly is convenient, the efficiency of a water pump is improved, the water pump is enabled to operate normally, and the sealing effect is good.
Description
Technical field
The utility model relates to double suction pump, particularly to the improvement of double suction pump axle sleeve O RunddichtringO mounting structure.
Background technique
Conventional double suction pump axle sleeve O RunddichtringO mounting structure as shown in Figure 1, comprises, be set in impeller 2 and two major axis cover 3 in the rotating shaft 1, wherein, impeller is positioned at the centre of two major axis cover, needs processing step hole between impeller and major axis cover, this impeller step place is because of casting defect, cause shrinkage cavity or shrinkage porosite, this moment, the O RunddichtringO did not just have seal action, and medium is crossed outside axle sleeve and the between centers efflux pump by this step, thereby caused the leakage of pump, and then influenced pump efficiency.Because of processing one step in the impeller hub, influenced impeller intensity, when impeller runs up again, cause water pump to damage, influenced the operation of water pump, and inconvenience is installed: O type circle will be placed on the axle sleeve, through in the impeller step, rubber is flexible during because of O type circle again, inserts trouble of impeller step.
The model utility content
The purpose of this utility model is to solve submersible axial flow pump can not be applied in the comparatively muddy sewage, particularly in the water twister is arranged, and provides a kind of and can pump the cutting type submersible axial flow pump that medium contains twister.
The utility model is achieved in that a kind of double suction pump axle sleeve O RunddichtringO structure, comprise: be set in impeller and two major axis covers in the rotating shaft, wherein, impeller is positioned at the centre of two major axis cover, it is characterized in that, the inner face away from the impeller end end of described major axis cover is provided with an annular breach, and this annular breach and rotating shaft form an annular trough body, and described seal ring is positioned at this annular trough body.
Preferably, also comprise the short sleeve that is sheathed in the described rotating shaft, this short sleeve be positioned at described major axis cover away from impeller end and with major axis cover drive fit.
Advantage of the present utility model: processing is simple, and is easy to assembly, improved the efficient of water pump, guarantees the normal operation of water pump, good sealing effect.
Description of drawings
Fig. 1 is the prior art constructions schematic representation.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the enlarged diagram at seal ring place in the utility model.
Embodiment
Below in conjunction with accompanying drawing structure of the present utility model is described.
See also Fig. 2 and 3, shown in the figure is a kind of double suction pump axle sleeve O RunddichtringO structure, comprise: be set in impeller 2 and two major axis cover 3 in the rotating shaft 1, wherein, impeller is positioned at the centre of two major axis cover, it is characterized in that, the inner face away from the impeller end end of described major axis cover is provided with an annular breach, this annular breach and rotating shaft form an annular trough body, this annular trough body opening outwardly, described O RunddichtringO 4 is embedded in this annular trough body.For fixed seal ring better, also comprise the short sleeve 5 that is sheathed in the described rotating shaft, this short sleeve is positioned at the outer end of described major axis cover and by sleeve nut 6 and major axis cover drive fit.
During processing and assembling, process a small stair (being annular breach) at major axis cover afterbody earlier, the O RunddichtringO directly is placed on the axle, is pressed in this annular trough body, pushes down with a short sleeve again, fixes with sleeve nut.The O RunddichtringO has stopped the outflow of medium, and medium just can not leak out from here.And the process that the O RunddichtringO is installed is also more convenient, directly pushes down with short sleeve, and is fixing just with sleeve nut, reduces installation difficulty.
Below only expressed mode of execution of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model patent scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (2)
1. double suction pump axle sleeve O RunddichtringO structure, comprise: be set in impeller and two major axis covers in the rotating shaft, wherein, impeller is positioned at the centre of two major axis cover, it is characterized in that, the inner face away from the impeller end end of described major axis cover is provided with an annular breach, and this annular breach and rotating shaft form an annular trough body, and described seal ring is positioned at this annular trough body.
2. a kind of double suction pump axle sleeve O RunddichtringO structure as claimed in claim 1 is characterized in that, also comprises the short sleeve that is sheathed in the described rotating shaft, this short sleeve be positioned at described major axis cover away from impeller end and with major axis cover drive fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736545 CN203114718U (en) | 2012-12-28 | 2012-12-28 | O-shaped seal ring structure for shaft sleeve of double suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736545 CN203114718U (en) | 2012-12-28 | 2012-12-28 | O-shaped seal ring structure for shaft sleeve of double suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114718U true CN203114718U (en) | 2013-08-07 |
Family
ID=48895068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220736545 Expired - Fee Related CN203114718U (en) | 2012-12-28 | 2012-12-28 | O-shaped seal ring structure for shaft sleeve of double suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114718U (en) |
-
2012
- 2012-12-28 CN CN 201220736545 patent/CN203114718U/en not_active Expired - Fee Related
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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: 20130807 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |