CN204900319U - Utilize seal spring to reduce impeller pump of bearing seal wearing and tearing - Google Patents
Utilize seal spring to reduce impeller pump of bearing seal wearing and tearing Download PDFInfo
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- CN204900319U CN204900319U CN201520506913.0U CN201520506913U CN204900319U CN 204900319 U CN204900319 U CN 204900319U CN 201520506913 U CN201520506913 U CN 201520506913U CN 204900319 U CN204900319 U CN 204900319U
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- impeller
- pump
- pump shaft
- rotating ring
- spring
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Abstract
The utility model provides a directional impeller of direction that utilize seal spring to reduce impeller pump of bearing seal wearing and tearing is fixed with quiet ring in pump case shaft hole department, and it has along with pump shaft pivoted rotating ring to overlap on the pump shaft, is equipped with seal spring between impeller and rotating ring, and seal spring overlaps and along with the pump shaft rotates together, seal spring's the hand of spiral does on the pump shaft, and along the direction of rotation of pump shaft, the spiral gos forward. This impeller pump utilizes seal spring to the guide effect of impurity such as solid particle ingeniously, makes impurity flow towards the impeller to the balancing hole of process impeller returns the sunction inlet low -pressure area of impeller, and impurity from impeller export under the direction of centrifugal force and blade is removed, has avoided impurity in rotating ring and the gathering of quiet ring department, has reduced the wear rate, has prolonged the life of impeller pump.
Description
Technical field
The utility model relates to vane pump, particularly relates to the shaft seal structure of vane pump.
Background technique
The pump shaft of vane pump is provided with gland seal assembly, and the fluid carried to stop vane pump leaks along the axis hole of pump case.In an existing class vane pump, the gland seal assembly of pump shaft is formed primarily of the stationary ring and the rotating ring be enclosed within pump shaft being fixed on pump case axis hole place, and rotating ring is pressed on stationary ring by Packing spring, forms sealing surface.During vane pump work, rotating ring rotates together along with pump shaft.If the liquid of vane pump conveying contains the impurity such as solid particle, the pump case chamber wall of the sealing friction pair that impurity can be formed rotating ring and stationary ring and axis hole periphery causes heavy wear, and severe patient can cause stationary ring to come off.
For solving the problem, prior art adopts and arranges cone seal chamber and the measure at the special axial diversion gusset of capsule walls, the sealing friction pair that solid particle diversion rotating ring and stationary ring are formed and Seal cage, to reduce the abrasion of solid particle to described sealing friction pair and capsule walls.
But, manufacture larger seal chamber, and special in the special water conservancy diversion gusset of capsule walls, add the complexity of shaft seal structure, add the manufacture cost of vane pump, and water conservancy diversion gusset can increase the energy consumption of pump, be unfavorable for energy-conservation.
Model utility content
The purpose of this utility model is to provide a kind of vane pump utilizing Packing spring to reduce shaft seal wearing and tearing, and this vane pump can reduce the wearing and tearing of the impurity such as solid particle to sealing friction pair, again without the need to additionally increasing component, can not increase the energy consumption of pump.
The utility model is achieved in that a kind of vane pump utilizing Packing spring to reduce shaft seal wearing and tearing, comprise pump case and be arranged on the impeller in pump case, the pump shaft that impeller connects passes pump case from the axis hole pump case, at the blade inlet place of impeller inlet hub periphery, be provided with the equalizing orifice of several through back shroud of impeller, pump shaft is provided with gland seal assembly, gland seal assembly comprises the stationary ring being fixed on pump case axis hole place, be enclosed within the rotating ring rotated on pump shaft and with pump shaft, and the Packing spring between impeller and rotating ring, rotating ring is pressed on stationary ring by sealing spring, make to form sealing surface between rotating ring and stationary ring, sealing spring is helical spring, to be enclosed within pump shaft and to rotate together along with pump shaft, the Hand of spiral of Packing spring is, along the sense of rotation of pump shaft, impeller is pointed in the direction that spiral advances.
The utility model has the advantages that, utilize Packing spring to the leading role of the impurity such as solid particle dexterously, impurity is flowed towards impeller, and the suction port low pressure area of impeller is turned back to through the equalizing orifice of impeller, impurity is drained from impeller outlet under the guiding of centrifugal force and blade, avoid impurity to assemble at rotating ring and stationary ring place, reduce wear rate, extend the working life of vane pump.While reaching described effect, without the need to additionally increasing component, both can not increase the manufacture cost of vane pump, the energy consumption of pump can not be increased again.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the A portion enlarged view of Fig. 1.
Embodiment
See Fig. 1 and composition graphs 2, according to a kind of vane pump utilizing Packing spring to reduce shaft seal wearing and tearing that the utility model provides, the impeller 2 comprising pump case 1 and be arranged in pump case 1.The pump shaft 3 be connected with impeller 2 passes pump case from the axis hole pump case 1, is rotated by pump shaft 3 drives impeller 2.Position near axle center before impeller 2 is blade pump intake 4.At the blade inlet place of impeller 2 import hub periphery, be provided with the equalizing orifice 5 of several through back shroud of impeller.
Pump shaft 3 is provided with gland seal assembly.Gland seal assembly comprise be fixed on pump case axis hole place stationary ring 6, be enclosed within pump shaft 3 and the rotating ring 7 rotated with pump shaft 3, and the Packing spring 8 between impeller 2 and rotating ring 7.Packing spring 8 is helical spring, to be enclosed within pump shaft 3 and to rotate together along with pump shaft 3.Also overlap between Packing spring 8 and pump shaft 3 and have rubber corrugated pipe 9.The two ends global formation of rubber corrugated pipe 9 has the flange of similar flange plate, as the seat ring of Packing spring 8.Rotating ring 7 is pressed on stationary ring 6 by Packing spring 8, makes to form sealing surface between rotating ring 7 and stationary ring 6.Rubber corrugated pipe 9 is flexible, can not hinder the elastic force to rotating ring 7 of Packing spring 8.The Hand of spiral of Packing spring 8 is, along the sense of rotation of pump shaft 3, impeller 2 is pointed in the direction that spiral advances.For the Hand of spiral of the Packing spring 8 in Fig. 2, look over from suction port 4, impeller 2 is for rotating counterclockwise.Thus, the impurity 10 such as the solid particle in Packing spring 8 convection cell play leading role, and impurity 10 is flowed towards the direction of impeller 2, and turn back to the suction port 4 of impeller 2 through the equalizing orifice 5 of impeller 2, avoid impurity 10 to assemble at rotating ring 7 and stationary ring 6 place, reduce wear rate.
It should be noted that, although the utility model without the need to increasing component on the basis of existing vane pump, the utility model does not get rid of the possibility increasing component in order to reduce wear rate further.Such as, can adopt on the basis of described Hand of spiral at described Packing spring 8, increase axial diversion plate, to reduce the wear rate of rotating ring and stationary ring further at Seal cage hole wall.And so on, described in all covering claims, the technological scheme of technical characteristics all belongs to protection domain of the present utility model.
Claims (1)
1. the vane pump utilizing Packing spring to reduce shaft seal wearing and tearing, comprise pump case and be arranged on the impeller in pump case, the pump shaft that impeller connects passes pump case from the axis hole pump case, at the blade inlet place of impeller inlet hub periphery, be provided with the equalizing orifice of several through back shroud of impeller, pump shaft is provided with gland seal assembly, gland seal assembly comprises the stationary ring being fixed on pump case axis hole place, be enclosed within the rotating ring rotated on pump shaft and with pump shaft, and the Packing spring between impeller and rotating ring, rotating ring is pressed on stationary ring by sealing spring, make to form sealing surface between rotating ring and stationary ring, sealing spring is helical spring, to be enclosed within pump shaft and to rotate together along with pump shaft, it is characterized in that: the Hand of spiral of described Packing spring is, along the sense of rotation of pump shaft, impeller is pointed in the direction that spiral advances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520506913.0U CN204900319U (en) | 2015-07-14 | 2015-07-14 | Utilize seal spring to reduce impeller pump of bearing seal wearing and tearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520506913.0U CN204900319U (en) | 2015-07-14 | 2015-07-14 | Utilize seal spring to reduce impeller pump of bearing seal wearing and tearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900319U true CN204900319U (en) | 2015-12-23 |
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ID=54922500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520506913.0U Active CN204900319U (en) | 2015-07-14 | 2015-07-14 | Utilize seal spring to reduce impeller pump of bearing seal wearing and tearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900319U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640728A (en) * | 2016-12-08 | 2017-05-10 | 贵州大学 | Method and structure for reducing abrasion of sand pump of sandblasting machine |
| CN109236720A (en) * | 2018-10-31 | 2019-01-18 | 安徽腾龙泵阀制造有限公司 | Leak-tight seal assembly apparatus at a kind of pump shaft |
-
2015
- 2015-07-14 CN CN201520506913.0U patent/CN204900319U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640728A (en) * | 2016-12-08 | 2017-05-10 | 贵州大学 | Method and structure for reducing abrasion of sand pump of sandblasting machine |
| CN109236720A (en) * | 2018-10-31 | 2019-01-18 | 安徽腾龙泵阀制造有限公司 | Leak-tight seal assembly apparatus at a kind of pump shaft |
| CN109236720B (en) * | 2018-10-31 | 2022-07-26 | 安徽腾龙泵阀制造有限公司 | Sealing assembly device is prevented leaking by pump shaft department |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |