CN201281042Y - Self-priming pump - Google Patents
Self-priming pump Download PDFInfo
- Publication number
- CN201281042Y CN201281042Y CNU2008202002247U CN200820200224U CN201281042Y CN 201281042 Y CN201281042 Y CN 201281042Y CN U2008202002247 U CNU2008202002247 U CN U2008202002247U CN 200820200224 U CN200820200224 U CN 200820200224U CN 201281042 Y CN201281042 Y CN 201281042Y
- Authority
- CN
- China
- Prior art keywords
- pump
- self
- pump housing
- priming
- pump cover
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 230000008676 import Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 53
- 230000000694 effects Effects 0.000 abstract description 10
- 230000003068 static effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000003405 preventing effect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a self-sucking pump which has good sealing effect, can reduce leakage and improve the performance; the self-sucking pump comprises a power component, a combined rotor and a main body; the power component is connected with the combined rotor which is arranged in the main body. The main body comprises a liquid inlet port, a sealing cavity, a delivery chamber, a liquid outlet port, a pump body and a pump cover, the liquid inlet port and the pump body are a whole formation structure, and the liquid inlet port is an oblique inlet. The sealing cavity and the delivery chamber are arranged in the pump body, the sealing cavity is fixed between the pump body and the pump cover, and the pump cover is provided with a set of cylindrical pins, and a set of locating holes are arranged in the sealing cavity, and the cylindrical pins and the locating hole are matched for realizing fixation of the pump cover and the sealing cavity by the pins and the locating holes. The self-sucking pump is provided with a sealing surface and has the characteristics of less sealing surfaces, less leakage points, good sealing effect and good self-sucking performance.
Description
Technical field
The utility model relates to a kind of pump, relates in particular to a kind of industries such as chemical industry, pharmacy that are applied to and carries out the self-priming pump that liquid is carried.
Background technique
Self-priming pump is a kind of centrifugal pump that full of liquid just can automatically draw up liquid in suction line that do not need.Self-priming pump drains the air in the pipeline by the rotation of impeller, and liquid is entered in the pump, finishes the self-priming process.Therefore, sealing effect is a key factor that influences self-priming pump performance quality.Sealing effect is good, and the self-priming pump performance is just superior, if sealing effect is bad, just is easy to generate gas leakage, the phenomenon of leakage, not only can influence the self-priming pump performance greatly, even might make the disabler of self-priming pump.Be to adopt seal ring and clamping bolt to be tightly connected between some parts of self-priming pump, in actual the use, because the aging and corrosion of seal ring can exist gas leakage, the phenomenon of leakage inevitably.Sealing surface the more, gas leakage, the phenomenon of leakage more obviously, the self-priming pump performance is just poorer.
Existing self-priming pump, main body all comprise four parts: liquid entering hole, with liquid outlet be the holistic pump housing, Seal cage and pump cover.Usually the liquid entering hole and the pump housing combine by seal ring and clamping bolt, and this is a sealing surface.And the traditional way of Seal cage is to adopt bolt and seal ring, and Seal cage and the pump housing and pump cover are linked together, and has two sealing surfaces so again.Therefore existing self-priming pump needs the sealing surface of three necessity, in actual the use, because sealing surface is more, is easy to generate leakage, influences the self-priming pump performance.
Therefore, design is a kind of has the self-priming pump of less sealing surface in fact for necessary.
Summary of the invention
At the deficiencies in the prior art, main purpose of the present utility model is to become a plurality of sealing surfaces to be single sealing surface, so that a kind of good sealing effect to be provided, can reduce the self-priming pump that leaks and improve its performance.
The utility model reduces by a sealing surface by the liquid entering hole and the pump housing are designed to linking body structure by casting, and the Seal cage design and installation is realized the purpose that sealing effect is good to reduce sealing surface between the pump housing and pump cover.
The technological scheme that self-priming pump adopted that the utility model provides is:
A kind of self-priming pump comprises Power Component, combined rotor and main body, and described Power Component is connected with described combined rotor, and described combined rotor is installed in the described main body.
Described main body comprises liquid entering hole, Seal cage, delivery chamber, liquid outlet, the pump housing and pump cover, and the described liquid entering hole and the described pump housing are the global formation structure, and the described liquid entering hole of the described pump housing is oblique import.The liquid entering hole and the pump housing are designed to linking body structure, just do not need Sealing between the liquid entering hole and the pump housing, can save a sealing surface, have reduced sealing surface, and the leak preventing effect of self-priming pump increases.
The described liquid entering hole of the described pump housing is oblique import, and promptly the angle between the axis of the axis of described liquid entering hole and the described pump housing is an acute angle.The design of oblique import can reduce elbow, shortens flow process, reduces fluid resistance.
Be provided with the Seal cage and the delivery chamber that are connected in the described pump housing, described Seal cage is fixed between the pump housing and the pump cover, described pump cover is provided with one group of cylindricality pin, described accordingly Seal cage is provided with one group of positioning hole, described cylindricality pin and described positioning hole coupling can realize the fixing of pump cover and described Seal cage by described pin and positioning hole.The pump housing and pump cover are clamped Seal cage up and down, by the cylindricality pin Seal cage and pump cover are fixed simultaneously, and like this, Seal cage just can stably be fixed in the pump housing, prevent that self-priming pump when work Seal cage from moving up and down being taken place.By the pump housing and pump cover the sealing chamber is fixed in the pump housing, like this, one side with the pump housing and Seal cage just not needing in prior art is fixed together by seal ring and clamping bolt, the another side of pump cover and Seal cage is fixed together by seal ring and clamping bolt, only needs the described pump housing and described pump cover are combined with seal ring and clamping bolt.Can omit a sealing surface like this, improve sealing effect, prevent gas leakage, leakage.
Described Seal cage and described delivery chamber communicate, and described liquid outlet communicates with described delivery chamber, and described liquid outlet is arranged at the described pump housing.
The beneficial effect of the self-priming pump that the utility model provides is:
The self-priming pump that the utility model relates to is designed to linking body structure with the liquid entering hole and the pump housing, by the injection molding once-through, the liquid entering hole and the pump housing is organically linked together, and has saved the sealing surface between the former water intake and the pump housing.And Seal cage is arranged in the described pump housing, described Seal cage is fixed between the pump housing and the pump cover, described pump cover is provided with one group of cylindricality pin, described accordingly Seal cage is provided with one group of positioning hole, described cylindricality pin and described positioning hole coupling can realize the fixing of pump cover and described Seal cage by described pin and positioning hole.The pump housing and pump cover are clamped Seal cage up and down, by the cylindricality pin Seal cage and pump cover are fixed simultaneously, and like this, Seal cage just can stably be fixed in the pump housing, prevent that self-priming pump when work Seal cage from moving up and down being taken place.By the pump housing and pump cover the sealing chamber is fixed in the pump housing, like this, one side with the pump housing and Seal cage just not needing in prior art is fixed together by seal ring and clamping bolt, the another side of pump cover and Seal cage is fixed together by seal ring and clamping bolt, only need the described pump housing and described pump cover are combined with seal ring and clamping bolt, can save a sealing surface compared to existing technology.Like this, the self-priming pump that the utility model provides has only the pump housing and sealing surface of pump cover, and self-priming pump is become by three sealing surfaces of original needs only needs a sealing surface now.The minimizing of sealing surface has obviously reduced leakage point, improves sealing effect, improves the self-priming pump performance.
In addition, liquid entering hole adopts oblique import, can reduce elbow, shortens flow process, reduces fluid resistance.
Description of drawings
Fig. 1 is the schematic representation of a kind of self-priming pump of the utility model
Embodiment
Below in conjunction with accompanying drawing a kind of self-priming pump that the utility model provides is further described.
As shown in Figure 1, a kind of self-priming pump of providing of the utility model comprises Power Component, combined rotor and main body.Main body comprises liquid entering hole 31, Seal cage 32, extrudes chamber 33, the pump housing 34, pump cover 35, liquid outlet 36 and spout 37, liquid entering hole 31 and the pump housing 34 link together by casting, the liquid entering hole 31 of this pump housing 34 is oblique import, and promptly the angle a between the axis of the axis of described liquid entering hole and the described pump housing is an acute angle.
Be provided with the Seal cage 32 that is connected in this pump housing 34 and extrude chamber 33, the Seal cage 32 outer liquid entering holes 31 that connect, liquid entering hole 31 is provided with one-way valve 30, the unidirectional inflow liquid entering hole 31 of liquid when this one-way valve 30 is used for guaranteeing self-priming pump work.Described Seal cage 32 is arranged in the described pump housing 34, described Seal cage 32 is fixed between the pump housing 34 and the pump cover 35, described pump cover 35 is provided with one group of cylindricality pin, described accordingly Seal cage 32 is provided with one group of positioning hole, described cylindricality pin and described positioning hole coupling can realize the fixing of pump cover 35 and described Seal cage 32 by described pin and positioning hole.The pump housing 34 and pump cover 35 are clamped Seal cage 32 up and down, and by the cylindricality pin that Seal cage 32 is fixing with pump cover 35 simultaneously, like this, Seal cage 32 just can stably be fixed in the pump housing 34, and Seal cage 32 takes place by up and down mobile when preventing self-priming pump work.The pump housing 34 and pump cover 35 usefulness seal rings and clamping bolt are fixed together.Like this, just only there is a sealing surface between the pump housing 34 and the pump cover 35 in the main body of self-priming pump.The minimizing of sealing surface has obviously reduced leakage point, improves sealing effect, improves the self-priming pump performance.
Power Component comprises motor 11, motor power axle 12 and motor frame 13.Combined rotor comprises impeller 21 and impeller shaft 22, and this impeller 21 and impeller shaft 22 fuse by injection moulding, and impeller shaft 22 is used for impeller 21 rotations.Fixedly connected with impeller shaft 22 by motor frame 13 motor power axles 12, the kinetic energy of motor 11 is passed to impeller 21, the power resources of self-priming pump are provided.
Have a cylindrical hole on the pump cover 35, this through hole can pass impeller shaft 22.Described impeller shaft 22 outsides are provided with mechanical seal, and this mechanical seal comprises mechanical sealing static ring 25, mechanical seal cover 23 and mechanical sealing linkage ring 24.Impeller 21 is installed in the described extrusion chamber 33 of the pump housing 34, the described through hole that described impeller shaft 22 passes on the described pump cover 35 is fixedlyed connected with described motor power axle 12, described impeller shaft 22 is provided with mechanical sealing static ring 25 and mechanical seal cover 23 with the contacting point of pump cover 35, this mechanical sealing static ring 25 is used for realizing the fixing of impeller shaft 22 and pump cover 35, realize the fixing of mechanical sealing static ring 25 and pump cover 35 by gland 23, mechanical sealing linkage ring 24 is arranged at described impeller shaft 22 outsides, this mechanical sealing linkage ring 24 rotates with impeller shaft 22, prevents leak of liquid.
During installation, impeller 21 is installed in the extrusion chamber 33 of the pump housing 34, impeller shaft 22 is passed pump cover 35, load onto mechanical sealing static ring 25, the solid mechanical sealing gland 23 then, with the positioning hole on the Seal cage 32 cooperate with cylindricality pin on the pump cover 35 take by force tight, load onto one-way valve 30, load onto the pump housing 34 then, with bolt that the pump housing 34 and pump cover 35 is fastening, and impeller shaft 22 fixedlyed connected with motor power axle 12, mechanical sealing linkage ring 24 is installed is at last got final product.
Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (7)
1, a kind of self-priming pump, comprise Power Component, combined rotor and main body, described Power Component is connected with described combined rotor, described combined rotor is installed in the described main body, described self-priming pump, it is characterized in that: described main body comprises liquid entering hole, Seal cage, extrusion chamber, liquid outlet, the pump housing and pump cover, the described liquid entering hole and the described pump housing are the global formation structure, be provided with the Seal cage that is connected in the described pump housing and extrude the chamber, described Seal cage is fixed between the described pump housing and the described pump cover, and described liquid outlet is arranged at the described pump housing.
2, self-priming pump as claimed in claim 1 is characterized in that: with the described pump housing be that the described liquid entering hole of one is oblique import, promptly the angle between the axis of the axis of described liquid entering hole and the described pump housing (a) is an acute angle.
3, self-priming pump as claimed in claim 1 is characterized in that: be provided with seal ring between the described pump housing and the described pump cover, and fixedly connected by clamping bolt.
4, self-priming pump as claimed in claim 3 is characterized in that: described pump cover is provided with one group of cylindricality pin, and described accordingly Seal cage is provided with one group of positioning hole, described cylindricality pin and described positioning hole coupling.
5, self-priming pump as claimed in claim 4 is characterized in that: described pump cover is provided with a cylindrical axis hole.
6, self-priming pump as claimed in claim 1 is characterized in that: described Power Component comprises motor, motor power axle and motor frame, and described motor power axle is fixedlyed connected with described combined rotor by described motor frame.
7, self-priming pump as claimed in claim 6 is characterized in that: described combined rotor comprises impeller and the impeller shaft that fuses by injection moulding with described impeller.Described impeller shaft drives the rotation of described impeller, and described impeller is installed in the described extrusion chamber of the described pump housing, and the described axis hole that described impeller shaft passes described pump cover is fixedlyed connected with described motor power axle, and described impeller shaft outside is provided with mechanical seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202002247U CN201281042Y (en) | 2008-09-08 | 2008-09-08 | Self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202002247U CN201281042Y (en) | 2008-09-08 | 2008-09-08 | Self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281042Y true CN201281042Y (en) | 2009-07-29 |
Family
ID=40927917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202002247U Expired - Lifetime CN201281042Y (en) | 2008-09-08 | 2008-09-08 | Self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281042Y (en) |
-
2008
- 2008-09-08 CN CNU2008202002247U patent/CN201281042Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090729 |
|
| CX01 | Expiry of patent term |