CN209261905U - Centrifugal pump applied to paint industry phosphorizing residue removal - Google Patents
Centrifugal pump applied to paint industry phosphorizing residue removal Download PDFInfo
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- CN209261905U CN209261905U CN201822185636.4U CN201822185636U CN209261905U CN 209261905 U CN209261905 U CN 209261905U CN 201822185636 U CN201822185636 U CN 201822185636U CN 209261905 U CN209261905 U CN 209261905U
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- pump housing
- pump
- residue removal
- paint industry
- centrifugal pump
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Abstract
The utility model discloses the centrifugal pumps for being applied to paint industry phosphorizing residue removal, it is related to being centrifuged pump technical field, including the pump housing, pump shaft is equipped in the pump housing, the front end of pump shaft is equipped with half-opened impeller, and half-opened impeller includes back shroud, it is radially connected on back shroud to have several blades, vane nose is equipped with front shroud, and front shroud is fixedly connected with the pump housing, and front shroud and the gap of vane nose everywhere are 0.3-0.5mm.The technical issues of solution is that centrifugal pump in the prior art efficiency when being applied to paint industry phosphorizing residue removal is lower, and the pump housing is easily blocked.The utility model has the beneficial effects that improving the efficiency of centrifugal pump, there is certain gap between front shroud and impeller, the pump housing is blocked by the tank liquor containing particulate matter when so as to prevent termination of pumping.
Description
Technical field
The utility model relates to centrifugal pump fields, and in particular to the centrifugal pump applied to paint industry phosphorizing residue removal.
Background technique
It can significantly improve the adhesive force and corrosion resistance of coating before metal material surface coating through phosphorating treatment, therefore
Every profession and trade is widely applied, and especially in automobile industry, bottom of the phosphating coat as electrophoretic coating has been obtained almost
100% application.With parkerized process, the generation of phosphating dregs is inevitable.If excessive phosphatization slag is not in time
It is removed from tank liquor, can not only pollute phosphating solution, shorten its service life, while can also be attached to bodywork surface to influence phosphating coat
The coating quality of quality and vehicle.Centrifugal pump is used in phosphorizing residue removal technical process and pumps tank liquor, mostly use half-opened impeller
Pump still to improve efficiency, is then needed using double shrouded wheel, tiny due to containing in tank liquor using the centrifugal pump of double shrouded wheel
Particulate matter, and stop work when tank liquor poor fluidity, be easy blocking the pump housing.
Utility model content
In view of the deficiency of background technique, the utility model there is provided the centrifugal pump for being applied to paint industry phosphorizing residue removal,
The technical problem to be solved is that centrifugal pump in the prior art be applied to paint industry phosphorizing residue removal when efficiency it is lower, the pump housing
Easily it is blocked.
In order to solve the above technical problems, the utility model provides following technical solution:
Applied to the centrifugal pump of paint industry phosphorizing residue removal, including the pump housing, rotation is equipped with pump shaft in the pump housing, the pump shaft
Front end is equipped with half-opened impeller, and the half-opened impeller includes back shroud, radially connected on the back shroud to have several blades,
The vane nose is equipped with front shroud, and the front shroud is fixedly connected with the pump housing, and the front shroud and the vane nose are each
The gap at place is 0.3-0.5mm.
Preferably, the pump shaft is axially displaceably connected on the pump housing.
Preferably, the pump shaft is rotatably connected on axle sleeve, and the axle sleeve is axially displaceably connected on the pump housing.
Preferably, the pump housing rear end is equipped with mounting groove, and the installation groove bottom is equipped with the through-hole passed through for pump shaft, described
Axle sleeve is equipped in mounting groove, the axle sleeve is rotatablely connected the pump shaft by bearing, and the axle sleeve rear end is fixedly connected with pressing plate,
The pressing plate is located at the rear side of the pump housing, and the pressing plate is equipped with the first threaded hole, on the pump housing rear end face described in correspondence
First threaded hole is equipped with the second threaded hole, and first threaded hole is bolted with second threaded hole, so that described
There are space D, the axle sleeve front end face and the installation groove bottom distance F > D between pressing plate and the pump housing rear end face.
Preferably, the range of the D is 0.5-10mm.
Preferably, the D is 5mm.
Possessed beneficial effect is the utility model compared with prior art: using half-opened impeller, semi-open type leaf
The vane nose setting front shroud of wheel improves the efficiency of centrifugal pump, has between front shroud and impeller to reduce leakage rate
There is certain gap, the pump housing is blocked by the tank liquor containing particulate matter when so as to prevent termination of pumping.
Detailed description of the invention
The utility model has following attached drawing:
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is the enlarged diagram of A in Fig. 1；
Fig. 3 is the enlarged diagram of B in Fig. 1.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
As shown in Figure 1-3, such centrifugal pump applied to paint industry phosphorizing residue removal, including the pump housing 1, set in the pump housing 1
There is a pump shaft 2, the front end of pump shaft 2 is equipped with half-opened impeller 3, and half-opened impeller 3 includes back shroud 5, radially connected on back shroud 5
There are several blades 4,4 front end of blade is equipped with front shroud 6, and front shroud 6 is fixedly connected with the pump housing 1, can fix by welding,
Front shroud 6 and the gap of 4 front end of blade everywhere are 0.3-0.5mm, only have 0.3- between the pump housing 1 and impeller in this way, foring
A gap of 0.5mm, so that leakage rate very little when wheel rotation, so that efficiency is increased to the efficiency close to double shrouded wheel,
But has the characteristics that semi-open type structure impeller simultaneously, the fine grained in tank liquor is not easy to plug.Centrifugal pump manufacture and install,
It directly reaches only with the gap of very little between half-opened impeller and the pump housing, to reduce leakage rate, the accuracy of manufacture is difficult to control,
And installation may also cause a deviation, so that 0.3- is not achieved in the gap after centrifugal pump installation between half-opened impeller and the pump housing
0.5mm, thus the purpose for being not achieved and reducing leakage rate, improve efficiency of centrifugal pump.After introducing front shroud 6, let out to realize to reduce
The purpose of leakage quantity does not need control pump housing machining accuracy, but controls the machining accuracy of front shroud 6, and machining accuracy is easier to control
System；During installation, the gap of half-opened impeller 3 and front shroud 6 can also be adjusted by being ground the rear end face of front shroud 6, comprehensive
It closes and uses the above means, it is ensured that the spacing of half-opened impeller 3 and front shroud 6 is 0.3-0.5mm everywhere after installation, is reached
The purpose of leakage rate is reduced, to improve efficiency.
Pump shaft 2 is axially movable.
Pump shaft 2 is rotatablely connected the pump housing 1 by axle sleeve 8, and axle sleeve 8 is axially movable the connection pump housing 1, so set, realizing pump
Axis 2 is axially movable.
1 rear end of the pump housing is equipped with mounting groove 7, and 7 bottom surface of mounting groove is equipped with the through-hole passed through for pump shaft 2, sets in mounting groove 7
There is an axle sleeve 8, axle sleeve 8 is rotatablely connected pump shaft 2 by bearing 9, and 8 rear end of axle sleeve is fixedly connected with pressing plate 10, and pressing plate 10 is equipped with the
One threaded hole, the second threaded hole is correspondingly provided on 1 rear end face of the pump housing, and the first threaded hole is connected with the second threaded hole by bolt 11
It connects, there is space D, 8 front end face of axle sleeve and 7 bottom surface distance F > D of mounting groove between 1 rear end face of pressing plate 10 and the pump housing.
So set, realizing that pump shaft 2 is rotatablely connected the pump housing 1 by axle sleeve 8, axle sleeve 8 is axially movable the connection pump housing 1.
Due to containing fine grained in tank liquor and there is corrosivity, so front shroud 6 or 4 edge of blade can constantly be worn, mill
After damage, the gap of 4 front end face of front shroud 6 and blade can expand, and efficiency of centrifugal pump is caused to reduce, and at this moment, can dismantle connection
The bolt 11 of 1 rear end face of pressing plate 10 and the pump housing pushes forward pressing plate 10 in the axial direction, so that pump shaft 2 is whole to translate forward one
Fixed distance, and then the gap of front shroud 6 and 4 front end of blade everywhere is made to come back to the range of 0.3-0.5mm, then load onto spiral shell
Bolt 11 is fixedly connected with 1 rear end face of pressing plate 10 and the pump housing, in this way, the efficiency be increased to the efficiency of centrifugal pump again before.
D is 5mm, and in actual use, 5mm is the more appropriate size of space D, can in centrifugal pump use process, by
It is secondary total pump shaft 2 to be elapsed into forward 5mm.D setting is too small, and after wearing several times, pressing plate 10 is adjusted to fitting 1 rear end of the pump housing
Face can not continue to adjust；D setting is excessive, and far super abrasion loss then causes unnecessary waste.
In the present invention, due to using half-opened impeller, front shroud is arranged in the vane nose of half-opened impeller, preceding
The gap for only having very little between cover board and blade improves the efficiency of centrifugal pump, front shroud and impeller to reduce leakage rate
Between have certain gap, when so as to prevent termination of pumping the pump housing by containing particulate matter tank liquor block, be particularly suitable for applying
Industry phosphorizing residue removal technique is filled, is suitble to promote and apply.
Above-mentioned foundation the utility model is enlightenment, and through the above description, relevant staff completely can be not
In the range of deviateing this item utility model technical idea, various changes and amendments are carried out.This item utility model it is technical
Range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (6)
1. being applied to the centrifugal pump of paint industry phosphorizing residue removal, it is characterised in that: including the pump housing (1), rotation in the pump housing (1)
Equipped with pump shaft (2), the front end of the pump shaft (2) is equipped with half-opened impeller (3), and the half-opened impeller (3) includes back shroud
(5), radially connected on the back shroud (5) to have several blades (4), blade (4) front end is equipped with front shroud (6), before described
Cover board (6) is fixedly connected the pump housing (1), the front end face of the rear end face of the front shroud (6) and the blade (4) everywhere between
Away from being 0.3-0.5mm.
2. the centrifugal pump according to claim 1 applied to paint industry phosphorizing residue removal, it is characterised in that: the pump shaft
(2) it is axially displaceably connected on the pump housing (1).
3. the centrifugal pump according to claim 2 applied to paint industry phosphorizing residue removal, it is characterised in that: the pump shaft
(2) it is rotatably connected on axle sleeve (8), the axle sleeve (8) is axially displaceably connected on the pump housing (1).
4. the centrifugal pump according to claim 3 applied to paint industry phosphorizing residue removal, it is characterised in that: the pump housing
(1) rear end is equipped with mounting groove (7), and the axle sleeve (8) is located in the mounting groove (7), and the rear end of the axle sleeve (8) is fixedly connected
Have pressing plate (10), the pressing plate is located at the rear side of the pump housing, and edge is axially arranged with the first threaded hole, the pump housing on the pressing plate
Upper edge is axially arranged with the second threaded hole with the first threaded hole Corresponding matching, and the pressing plate (10) is equipped with the first screw thread
Hole, first threaded hole is corresponded on the pump housing (1) rear end face equipped with the second threaded hole, first threaded hole and described the
Two threaded holes are connected by bolt (11), have spacing between the front end face of the pressing plate (10) and the rear end face of the pump housing (1)
D, axle sleeve (8) front end face and the mounting groove (7) bottom surface distance F > D.
5. the centrifugal pump according to claim 4 applied to paint industry phosphorizing residue removal, it is characterised in that: the model of the D
It encloses for 0.5-10.0mm.
6. the centrifugal pump according to claim 5 applied to paint industry phosphorizing residue removal, it is characterised in that: the D is
5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822185636.4U CN209261905U (en) | 2018-12-20 | 2018-12-20 | Centrifugal pump applied to paint industry phosphorizing residue removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822185636.4U CN209261905U (en) | 2018-12-20 | 2018-12-20 | Centrifugal pump applied to paint industry phosphorizing residue removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209261905U true CN209261905U (en) | 2019-08-16 |
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ID=67561131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822185636.4U Active CN209261905U (en) | 2018-12-20 | 2018-12-20 | Centrifugal pump applied to paint industry phosphorizing residue removal |
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| CN (1) | CN209261905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441874A (en) * | 2018-12-20 | 2019-03-08 | 无锡强工机械工业有限公司 | Centrifugal pump applied to paint industry phosphorizing residue removal |
-
2018
- 2018-12-20 CN CN201822185636.4U patent/CN209261905U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441874A (en) * | 2018-12-20 | 2019-03-08 | 无锡强工机械工业有限公司 | Centrifugal pump applied to paint industry phosphorizing residue removal |
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