CN2702102Y - Pumping and draining structure of centrifugal pump - Google Patents
Pumping and draining structure of centrifugal pump Download PDFInfo
- Publication number
- CN2702102Y CN2702102Y CN 200420049942 CN200420049942U CN2702102Y CN 2702102 Y CN2702102 Y CN 2702102Y CN 200420049942 CN200420049942 CN 200420049942 CN 200420049942 U CN200420049942 U CN 200420049942U CN 2702102 Y CN2702102 Y CN 2702102Y
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- CN
- China
- Prior art keywords
- rotating shaft
- impeller blade
- pump
- drain opening
- pump drainage
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- 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 - Lifetime
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Abstract
The utility model relates to a pumping and draining mechanism of a centrifugal pump. A clamp connecting element is arranged on one end of a rotation shaft convexly extended from a driving element, and the rotation shaft can be tightly arranged on an impeller blade which is arranged on the rotation shaft utilizing the clamp connecting element. The surface of the impeller blade is provided with a positioning hole which is provided with a positioning element, the positioning element is connected between the impeller blade and the rotation shaft. The impeller blade can not generate displacement on the rotation shaft in the process that the rotation shaft drives the impeller blade, and the impeller blade can not touch a bearing seat and an external cover which are arranged at both sides of the impeller blade. So, when the pump is in operation, the horsepower of the rotation shaft can be avoided to generate the loss caused by the friction between the bearing seat or the external cover and the impeller blade. The action efficiency can be improved, and the noise caused by the operation can be reduced.
Description
Technical field
The utility model relates to a kind of pump drainage mechanism, refer in particular in a kind of rotating shaft that is installed in a driving element, be assembled into the pump drainage mechanism of a centrifugal pump with this driving element, and set impeller blade when rotating, this rotating shaft can not produce displacement in this pump drainage mechanism in this rotating shaft.
Background technique
The pump drainage mechanism of conventional centrifugal pump (or being called the circumfluence pump), see also Fig. 1, shown in 2 and 3, usually only in a rotating shaft 10 of a motor 1, the parallel key 12 that utilization is located at its ora terminalis place is connected together mutually with an impeller blade 14 (Impeller), and this rotating shaft 10 is provided with a bearing support 20 in these impeller blade 14 one sides, face is provided with an enclosing cover 22 in addition, make this bearing support 20 and enclosing cover 22 form a pump drainage group 2, these pump drainage group 2 outer rims are respectively equipped with a pump mouth 24 and a drain opening 26, in addition, this bearing support 20 and enclosing cover 22 are in relative position, be respectively equipped with a groove 28, these groove 28 two ends join with pump mouth 24 and drain opening 26 respectively, and this impeller blade 14 is during by this motor 1 driven rotary, this pump mouth 24 can attract fluid to enter this groove 28, outwards be flowed out by this drain opening 26 again.
Yet, this impeller blade 14 only is connected in this rotating shaft 10 by this parallel key 12, drive in the rotation process of this impeller blade 14 in this rotating shaft 10, this impeller blade 14 will produce displacement in this rotating shaft 10, make this impeller blade 14 will rub this bearing support 20 or enclosing cover 22, and produce great noise, and make 10 horsepowers of rotating shafts cause damage because of friction, and reduce its operational paradigm, in addition, more because this impeller blade 14 can be at these rotating shaft 10 top offsets, make this pump drainage group 2 must reserve the space of these impeller blade 14 displacements, and then make that the volume of this pump drainage group 2 is bigger, produce the shortcoming that takies than large space, real be not inconsistent towards short and small frivolous direction with product now, in addition, this rotating shaft 10 also must extension length be supported and is driven this impeller blade 14, produces bigger vibration when causing this rotating shaft 10 to rotate, and then make bearing set in this bearing support 20 impaired easily, cause this rotating shaft 10 to rotate and have some setbacks.
Moreover, the fluid that this impeller blade 14 drives by this pump mouth 24 enters in this groove 28, or when taking drain opening 26 in by this groove 28 fluid, because this fluid is suddenly by being brought in great space (pump mouth 24) in the minimum space (groove 28), or suddenly by being brought in minimum space (groove 28) in the great space (drain opening 26), the capital makes the ancient piece of jade, round, flat and with a hole in its centre face of this pump drainage group 2 of fluid impact, produce noise, especially, the position that this pump mouth 24 and groove 28 join, reach the position that this drain opening 26 and groove 28 join, the noise that it produced is big especially.
In view of this, for improving known shortcoming, the design people is through the permanent research and experiment of making great efforts, and development and Design goes out the pump drainage mechanism of a kind of centrifugal pump of the present utility model finally.
Summary of the invention
The technical problems to be solved in the utility model is: the pump drainage mechanism that a kind of centrifugal pump is provided, its impeller blade can not rub bearing support or enclosing cover, therefore can not produce big noise, and avoid rotating shaft horsepower to cause damage because of friction, can improve its operational paradigm, in addition, also can reduce the volume of pump drainage group, reduce space hold.
Technical solution of the present utility model is: a kind of pump drainage structure of centrifugal pump, to be located in the rotating shaft that a driving element protrudes out, and it comprises:
One bearing support is located in this rotating shaft the position near this driving element;
One enclosing cover is located at the one side of this bearing support back to this driving element, and this bearing support and enclosing cover are assembled into a pump drainage group;
One curb is located at the position of this bearing support one side relative with enclosing cover near this rotating shaft ora terminalis;
One impeller blade is located in this curb, and this impeller blade is connected together by the set catch element of this rotating shaft mutually with this rotating shaft;
One positioning hole is located at a side peripheral surface of this impeller blade, can wear a positioning element in this positioning hole, and this positioning element is fixed this impeller blade in this rotating shaft.
Aforesaid pump drainage structure, described bearing support can be located at the position of protruding this driving element near this rotating shaft, and this rotating shaft can deduct the displacement amount that this impeller blade rotates, and this impeller blade and this enclosing cover all can be located at the position of protruding this driving element near this rotating shaft.
Aforesaid pump drainage structure, described curb are respectively by the set groove of the one side of the corresponding enclosing cover of this bearing support, and another set groove of corresponding this groove location of this enclosing cover is formed.
Aforesaid pump drainage structure, described pump drainage group is provided with a pump mouth and a drain opening, and this pump mouth and drain opening communicate with an end and other end of this curb respectively.
Aforesaid pump drainage structure, described pump mouth and drain opening can be located at this enclosing cover periphery, and an end of this pump mouth and this another groove connects, and this drain opening then connects with holding in addition of this another groove.
Aforesaid pump drainage structure on the position that described pump mouth and this another groove join, is provided with an arc portion that is extended to this another groove gradually by this pump mouth bottom.
Aforesaid pump drainage structure on the position that described drain opening and another groove join, is provided with a flexural slip portion of being extended to this drain opening bottom gradually by this another groove.
Aforesaid pump drainage structure, adjacent this drain opening one end end edge with another groove of described groove is respectively equipped with a dashpot, and this dashpot holds middle position to draw close condensation to other by an end adjacent with this drain opening gradually.
Characteristics of the present utility model and advantage are: the pump drainage mechanism of centrifugal pump of the present utility model, protrude out at a driving element on the end of rotating shaft and be provided with a catch element, make this rotating shaft can utilize this catch element clamping to wear thereon an impeller blade, this impeller blade surface is provided with a positioning hole, this positioning hole is provided with a positioning element, this positioning element is connected between this impeller blade and this rotating shaft, this rotating shaft drives in the rotation process of this impeller blade, this impeller blade can not produce displacement in this rotating shaft, the bearing support and the enclosing cover that make this impeller blade can not touch being arranged on its both sides, thereby overcome the defective of prior art, pump is when running, can avoid rotating shaft horsepower because of the loss that friction caused between this bearing support or enclosing cover and this impeller blade, and can improve its operational paradigm, and can reduce the noise that running produces; In addition, also can reduce the volume of pump drainage group, reduce space hold, this rotating shaft is rotated smooth and easy, has reduced the wearing and tearing of bearing, has reduced operating cost.
Description of drawings
Fig. 1 is the generalized section of the pump drainage mechanism of known centrifugal pump;
Fig. 2 is the schematic representation of common shaft bearing;
Fig. 3 is the schematic representation of known enclosing cover;
Fig. 4 is the generalized section of the utility model pump drainage mechanism:
Fig. 5 is the schematic representation of enclosing cover of the present utility model;
Fig. 6 is the schematic representation of bearing support of the present utility model.
The drawing reference numeral explanation:
3, driving element 30, rotating shaft 32, impeller blade 320, positioning hole
322, positioning element 34, catch element 4, pump drainage group 40, bearing support
402, groove 400, bearing external member 42, enclosing cover 420, another groove
422, arc portion 424, flexural slip portion 44, curb 440, dashpot
46, pump mouth 48, drain opening
Embodiment
In order the technical solution of the utility model, feature and effect thereof to be had further understanding and to understand, lift specific embodiment now and conjunction with figs. is described in detail as follows:
The utility model is a kind of centrifugal pump (PeriPheral Pump, or be called circumfluence pump CentrifugalPump) pump drainage mechanism, see also shown in Figure 4, a side that protrudes out a rotating shaft 30 at a driving element 3 (as: motor) is provided with a bearing support 40, this bearing support 40 is provided with an enclosing cover 42 that joins with it back to the one side of this driving element 3, this bearing support 40 is assembled into a pump drainage group 4 with enclosing cover 42, and the two relative one side is in the position near these rotating shaft 30 ora terminalis, be provided with a curb 44, be provided with an impeller blade 32 (Impeller) in this curb 44,30 of this impeller blade 32 and this rotating shafts, by the set catch element 34 (as: parallel keys of this rotating shaft 30, feather key) is connected together mutually, in addition, one side peripheral surface of this impeller blade 32 is provided with a positioning hole 320, this positioning hole 320 is provided with a positioning element 322, this positioning element 322 is connected 30 of this impeller blade 32 and this rotating shafts, this rotating shaft 30 drives in the rotation process of this impeller blade 32, this impeller blade 32 can not produce displacement in this rotating shaft 30, make this impeller blade 32 can not touch this bearing support 40 and enclosing cover 42, so, during the circumfluence running, can reach and not have friction, avoid the loss of horsepower because of rubbing and being caused of this rotating shaft 30, and can improve its operational paradigm, and can reduce the noise that running produces.
Because this impeller blade 32 is fixed in this rotating shaft 30 by this catch element 34 and positioning element 322 simultaneously, make this impeller blade 32 can in this rotating shaft 30, not produce displacement, therefore, this rotating shaft 30 needn't be reserved the displacement amount that this impeller blade 32 rotates, make set bearing external members 400 in this bearing support 40, needn't be because of the long length of this rotating shaft 30, and be located at the position of protruding these driving elements 3 away from this rotating shaft 30, so, in the utility model, this bearing support 40 can be located at the position of quite protruding this driving element 3 near this rotating shaft 30, and this rotating shaft 30 can deduct the displacement amount that this impeller blade 32 rotates, make this impeller blade 32 and this enclosing cover 42 all can be located at the position of protruding this driving element 3 near this rotating shaft 30, so, this pump drainage mechanism will be shorter than the length of known pump drainage mechanism, dwindle the volume of this pump drainage mechanism, and than the efficient height of known pump drainage mechanism.In addition, these rotating shaft 30 length are shorter than traditional rotating shaft, make this rotating shaft 30 diminish, can reduce this driving element 3 and bearing external member 400, make this driving element 3 can use the more normal time with bearing external member 400 because of the loss that rotating shaft 30 vibrations are caused in the vibrations of rotation process.
In a specific embodiment of the present utility model, see also Fig. 4, shown in 5 and 6, this curb 44 is respectively by the set groove 402 of the one side of these bearing support 40 corresponding these enclosing covers 42, and this another set groove 420 of enclosing cover 42 corresponding these groove 402 positions is formed, and this pump drainage group 4 is provided with a pump mouth 46 and drain opening 48, this pump mouth 46 and drain opening 48 communicate with an end and other end of this curb 44 respectively, this impeller blade 32 is during by rotating shaft 30 driven rotary of this driving element 3, this pump mouth 46 can attract fluid to enter this curb 44, outwards be flowed out by this drain opening 48 again.In this was implemented, this pump mouth 46 and drain opening 48 can be arranged on this enclosing cover 42 peripheries, and this pump mouth 46 connects with an end of this another groove 420, and this drain opening 48 then connects with holding in addition of this another groove 420.
In this embodiment, this pump mouth 46 is provided with an arc portion 422 that is extended to this another groove 420 gradually by this pump mouth 46 bottoms with the position that this another groove 420 joins, when the fluid that flows into from this pump mouth 46, this impeller blade 32 that is rotated is from these pump mouth 46 bottoms, taking this arc portion 422 to enters in the process in this curb 44, because the Volume Changes of this arc portion 422, be to diminish gradually from these pump mouth 46 bottom arc portions, make this fluid on the position that this pump mouth 46 and this another groove 420 join, can be by the change in shape of this arc portion 422, slow down impact, and then can not produce excessive noise.
In this embodiment, on the position that this drain opening 48 and another groove 420 join, be provided with a flexural slip portion 424 of extending to these drain opening 48 bottoms gradually by this another groove 420, this impeller blade 32 that fluid is rotated takes this flexural slip portion 424 to from this curb 44, enter again in the process in these drain opening 48 bottoms, because the change in shape of this flexural slip portion 424, become big gradually from these curb 44 arc portions, make this fluid on the position that this curb 44 and this drain opening 48 are joined, can march to this drain opening 48 gradually by this flexural slip portion 424, but slowing down fluid impacts the position that this curb 44 and this drain opening 48 are joined, and then can reduce noise.
In this embodiment, this groove 402 and another groove 420 adjacent these drain opening 48 1 ends end edge, be respectively equipped with a dashpot 440, this dashpot 440 holds middle position to draw close condensation to other by an end adjacent with this drain opening 48 gradually, this impeller blade 32 that fluid is rotated takes this dashpot 440 to from these drain opening 48 bottoms, when entering this bearing support 40 again and not being provided with the position of this curb 44 with this enclosing cover 42, change in shape with this dashpot 440 of mat, slowing down fluid impacts this bearing support 40 and is not provided with the position of this curb 44 with this enclosing cover 42, and then can reduce noise.
Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.
Claims (8)
1. the pump drainage structure of a centrifugal pump is located in the rotating shaft that a driving element protrudes out, and it is characterized in that described pump drainage structure comprises:
One bearing support is located in this rotating shaft the position near this driving element;
One enclosing cover is located at the one side of this bearing support back to this driving element, and this bearing support and enclosing cover are assembled into a pump drainage group;
One curb is located at the position of this bearing support one side relative with enclosing cover near this rotating shaft ora terminalis;
One impeller blade is located in this curb, and this impeller blade is connected together by the set catch element of this rotating shaft mutually with this rotating shaft;
One positioning hole is located at a side peripheral surface of this impeller blade, can wear a positioning element in this positioning hole, and this positioning element is fixed this impeller blade in this rotating shaft.
2. pump drainage structure as claimed in claim 1, it is characterized in that: described bearing support can be located at the position of protruding this driving element near this rotating shaft, and this rotating shaft can deduct the displacement amount that this impeller blade rotates, and this impeller blade and this enclosing cover all can be located at the position of protruding this driving element near this rotating shaft.
3. pump drainage structure as claimed in claim 1 is characterized in that: described curb is respectively by the set groove of the one side of the corresponding enclosing cover of this bearing support, and another set groove of corresponding this groove location of this enclosing cover is formed.
4. pump drainage structure as claimed in claim 3 is characterized in that: described pump drainage group is provided with a pump mouth and a drain opening, and this pump mouth and drain opening communicate with an end and other end of this curb respectively.
5. pump drainage structure as claimed in claim 4 is characterized in that: described pump mouth and drain opening can be located at this enclosing cover periphery, and an end of this pump mouth and this another groove connects, and this drain opening then connects with holding in addition of this another groove.
6. pump drainage structure as claimed in claim 5 is characterized in that: on the position that described pump mouth and this another groove join, be provided with an arc portion that is extended to this another groove gradually by this pump mouth bottom.
7. pump drainage structure as claimed in claim 5 is characterized in that: on the position that described drain opening and another groove join, be provided with a flexural slip portion of being extended to this drain opening bottom gradually by this another groove.
8. pump drainage structure as claimed in claim 5 is characterized in that: adjacent this drain opening one end end edge of described groove with another groove, be respectively equipped with a dashpot, and this dashpot holds middle position to draw close condensation to other by an end adjacent with this drain opening gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420049942 CN2702102Y (en) | 2004-05-09 | 2004-05-09 | Pumping and draining structure of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420049942 CN2702102Y (en) | 2004-05-09 | 2004-05-09 | Pumping and draining structure of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2702102Y true CN2702102Y (en) | 2005-05-25 |
Family
ID=34776774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420049942 Expired - Lifetime CN2702102Y (en) | 2004-05-09 | 2004-05-09 | Pumping and draining structure of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2702102Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696288A (en) * | 2015-02-18 | 2015-06-10 | 溧阳市超强链条制造有限公司 | Tooling |
-
2004
- 2004-05-09 CN CN 200420049942 patent/CN2702102Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696288A (en) * | 2015-02-18 | 2015-06-10 | 溧阳市超强链条制造有限公司 | Tooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140509 Granted publication date: 20050525 |