CN216241325U - Water pump capable of adjusting impeller clearance - Google Patents
Water pump capable of adjusting impeller clearance Download PDFInfo
- Publication number
- CN216241325U CN216241325U CN202122876743.3U CN202122876743U CN216241325U CN 216241325 U CN216241325 U CN 216241325U CN 202122876743 U CN202122876743 U CN 202122876743U CN 216241325 U CN216241325 U CN 216241325U
- Authority
- CN
- China
- Prior art keywords
- adjusting
- impeller
- suction port
- clearance
- adjusting rod
- 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.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application discloses a water pump capable of adjusting impeller clearance, which comprises an impeller (1), a volute (3) and a suction port (4); the suction port (4) is fixedly arranged at the connection part of the inlet area of the volute (3), and the impeller (1) is rotatably arranged in the volute (3) through a rotating shaft; a conical lining (2) matched with the impeller (1) is arranged in the suction port (4), a conical surface is arranged in the conical lining (2) and is in clearance fit with the impeller (1), and the outer surface of the conical lining (2) is in sliding contact with the inner wall of the suction port (4); and a gap adjusting component for pushing the conical lining (2) to slide in the suction port (4) is arranged on the suction port (4). The water pump capable of adjusting the impeller clearance has the advantages of convenient and quick clearance adjustment operation, simple used tools, no need of replacing any part and low cost.
Description
Technical Field
The utility model relates to a water pump capable of adjusting impeller clearance, and belongs to the field of water pumps.
Background
As shown in fig. 1, in the conventional water pump structure, the impeller clearance (in the drawing, a spacer is provided at B) is often controlled by increasing or decreasing the thickness of the spacer. When a new water pump is installed, an installer can determine the thickness of the adjusting shim according to the required impeller clearance through theoretical calculation and then install the whole pump, so that the water pump meets the actual use requirement. When a medium with high solid content and high pumping hardness, such as magnetic powder, slag, silt-containing medium, straw (containing silt) and the like, is conveyed, some flow passage components such as a water pump impeller, a volute and the like are slowly abraded along with the extension of the working time, so that the movable clearance of the impeller is increased, and the performance of the water pump is reduced due to the overlarge impeller clearance. The energy consumption of unit pumping capacity is increased, and if the performance cannot meet the requirement, a new flow passage component can be replaced or the whole water pump is disassembled and then the gasket is replaced. The disassembly and assembly processes of the water pump not only need professional tools and tools to operate, but also have long operation period and waste time and labor. Frequent maintenance of the pump consumes a large amount of manpower and material resources, and influences the normal operation of the drainage pump station and the service life of the pump. Moreover, the elastic elements such as the O-shaped sealing ring of the water pump are not recommended to be used for the second time after being disassembled, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a water pump capable of adjusting impeller clearance, which is convenient and quick to adjust the impeller clearance, simple in used tools, free of replacing any part and low in cost.
The utility model adopts the technical scheme that the water pump capable of adjusting the impeller clearance comprises an impeller (1), a volute (3) and a suction port (4); the suction port (4) is fixedly arranged at the connection part of the inlet area of the volute (3), and the impeller (1) is rotatably arranged in the volute (3) through a rotating shaft; a conical lining (2) matched with the impeller (1) is arranged in the suction port (4), a conical surface is arranged in the conical lining (2) and is in clearance fit with the impeller (1), and the outer surface of the conical lining (2) is in sliding contact with the inner wall of the suction port (4); and a gap adjusting component for pushing the conical lining (2) to slide in the suction port (4) is arranged on the suction port (4).
Preferably, the clearance adjusting assembly of the water pump capable of adjusting the impeller clearance comprises an adjusting rod (8) and an adjusting threaded sleeve (6), one end of the adjusting rod (8) is connected with the conical lining (2), and the other end of the adjusting rod (8) penetrates through the outer wall of the suction port (4); the adjusting threaded sleeve (6) is sleeved on the adjusting rod (8) and moves axially along the adjusting rod (8), the adjusting threaded sleeve (6) and the adjusting rod (8) are coaxially arranged, and one end of the adjusting threaded sleeve (6) penetrates through the suction port (4) and is in contact with the conical lining (2); the sliding direction of the conical inner lining (2) in the suction opening (4) is parallel to the axis of the adjusting rod (8).
Preferably, in the water pump with the adjustable impeller clearance, the adjusting threaded sleeve (6) is in threaded connection with the suction port (4) and is in threaded connection with the adjusting rod (8).
Preferably, the clearance adjusting assembly of the water pump capable of adjusting the clearance of the impeller further comprises a locking nut (7), and the locking nut (7) is in threaded connection with the adjusting rod (8); the locking nut (7) is positioned at one end of the adjusting rod (8) which penetrates through the outer wall of the suction port (4) and is contacted with the end part of the adjusting threaded sleeve (6).
Optimized, above-mentioned adjustable wheel clearance's water pump, adjust pole (8) and be stud, be provided with on toper inside lining (2) and adjust the screw thread blind hole that pole (8) cooperation set up, adjust the tip and the screw thread blind hole threaded connection of pole (8).
Preferably, in the water pump with the adjustable impeller clearance, the spacer bush (5) is arranged at one end of the adjusting screw sleeve (6) positioned in the suction port (4), the contact end face is arranged on the conical lining (2), and the spacer bush (5) is in surface contact with the contact end face of the conical lining (2).
Preferably, in the water pump with the adjustable impeller clearance, the number of the clearance adjusting assemblies is more than or equal to three groups, and the clearance adjusting assemblies are uniformly arranged on the suction port (4) in an annular shape.
The application has the advantages that:
in the technical scheme of this application, the structure in adjustable impeller clearance that uses leads to under the too big condition in impeller clearance at impeller wearing and tearing, need not dismantle the adjustment that hydraulic part can accomplish impeller clearance, convenient operation. The operation process can be completed by using a simple tool without replacing any part, the adjustment of the impeller clearance can be completed, the adjustment process of the water pump impeller is simplified, and the investment of manpower and material resources is reduced.
Drawings
Fig. 1 is an internal structure view of a water pump in the prior art;
fig. 2 is a schematic view of the internal structure of the present application.
Detailed Description
The technical features of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
The utility model relates to a water pump capable of adjusting impeller clearance, which comprises an impeller (1), a volute (3) and a suction port (4); the suction port (4) is fixedly arranged at the connection part of the inlet area of the volute (3), and the impeller (1) is rotatably arranged in the volute (3) through a rotating shaft; a conical lining (2) matched with the impeller (1) is arranged in the suction port (4), a conical surface is arranged in the conical lining (2) and is in clearance fit with the impeller (1), and the outer surface of the conical lining (2) is in sliding contact with the inner wall of the suction port (4); and a gap adjusting component for pushing the conical lining (2) to slide in the suction port (4) is arranged on the suction port (4).
As shown in figure 2, the position A in the figure is the clearance of the impeller (1), when the clearance of the impeller (1) is overlarge, the clearance adjusting component pushes the conical lining (2) to move towards the direction of the impeller (1), so that the conical lining (2) and the impeller (1) are adjusted to a specified clearance, the problem that the clearance of the position A of the impeller (1) is overlarge is solved, and the adjustment of the clearance of the impeller (1) is completed without disassembling the water pump.
The quantity of clearance adjustment subassembly is three groups at least and is the annular and evenly sets up on suction inlet (4), and the interval angle between the clearance adjustment subassembly of three groups is 120 degrees, the clearance of adjustment impeller (1) that like this can be even. Of course, for a large water pump, the number of the gap adjusting assemblies can be four or more, and the actual number of the gap adjusting assemblies is set according to the size of the water pump.
The clearance adjusting assembly comprises an adjusting rod (8) and an adjusting threaded sleeve (6), one end of the adjusting rod (8) is connected with the conical lining (2), and the other end of the adjusting rod (8) penetrates through the outer wall of the suction port (4); the adjusting threaded sleeve (6) is sleeved on the adjusting rod (8) and moves axially along the adjusting rod (8), the adjusting threaded sleeve (6) and the adjusting rod (8) are coaxially arranged, and one end of the adjusting threaded sleeve (6) penetrates through the suction port (4) and is in contact with the conical lining (2); the sliding direction of the conical inner lining (2) in the suction opening (4) is parallel to the axis of the adjusting rod (8). The adjusting screw sleeve (6) is in threaded connection with the suction port (4) and is in threaded connection with the adjusting rod (8).
As shown in fig. 2, the end of the adjusting screw sleeve (6) is contacted with the conical lining (2) by rotating the adjusting screw sleeve (6), and the conical lining (2) is pushed to eliminate the increased gap of the impeller (1). The adjusting rod (8) plays a role in supporting and guiding the adjusting threaded sleeve (6).
The clearance adjusting assembly further comprises a locking nut (7), and the locking nut (7) is in threaded connection with the adjusting rod (8); the locking nut (7) is positioned at one end of the adjusting rod (8) which penetrates through the outer wall of the suction port (4) and is contacted with the end part of the adjusting threaded sleeve (6).
The locking nut (7) plays a role in locking the position of the adjusting threaded sleeve (6), and after the clearance adjustment is completed, the adjusting threaded sleeve (6) is prevented from loosening and displacing to cause the clearance of the impeller (1) to change again.
The adjusting rod (8) is a stud, a threaded blind hole matched with the adjusting rod (8) is formed in the conical lining (2), and the end of the adjusting rod (8) is in threaded connection with the threaded blind hole.
The whole clearance adjusting assembly is relatively large in stress and is easy to damage after being used for a long time. Adjust pole (8) and set up to the stud with toper inside lining (2) threaded connection, conveniently dismantle clearance adjustment subassembly wholly and change.
One end of the adjusting screw sleeve (6) positioned in the suction port (4) is provided with a spacer sleeve (5), the conical lining (2) is provided with a contact end face, and the spacer sleeve (5) is in surface contact with the contact end face of the conical lining (2).
The spacer bush (5) can be an elastic pad or a metal pad, and the rubber spacer bush (5) has the effect of isolating vibration. And the spacer bush (5) can ensure that the contact end face of the adjusting screw sleeve (6) and the conical lining (2) is properly contacted.
The adjustment of the impeller 1 gap is specifically operated as follows:
the lock nut 7 is unscrewed and then the lock nut 7 is unscrewed a few more turns. And all the adjusting screw sleeves 6 are screwed up clockwise until the conical lining 2 collides with the impeller 1, and the gap between the conical lining 2 and the impeller 1 is 0 at the moment.
The adjusting thread inserts 6 are then unscrewed counterclockwise, which should ensure that the thread counts of the three adjusting thread inserts 6 are identical.
And determining the number of turns of the bolt to be rotated to obtain the expected impeller clearance according to the impeller clearance value designed according to the working condition requirement and the thread pitch value of the adjusting stud bolt. And the three adjusting screw sleeves 6 are respectively loosened by the same number of turns. Finally, the adjusting threaded sleeve 6 is fixed by an open-end wrench, the locking nut 7 is screwed, the contact surface of the conical lining falls on the spacer 5, and the whole gap adjusting operation is finished.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions and substitutions within the spirit and scope of the present invention.
Claims (7)
1. The utility model provides an adjustable wheel clearance's water pump which characterized in that: comprises an impeller (1), a volute (3) and a suction port (4); the suction port (4) is fixedly arranged at the connection part of the inlet area of the volute (3), and the impeller (1) is rotatably arranged in the volute (3) through a rotating shaft; a conical lining (2) matched with the impeller (1) is arranged in the suction port (4), a conical surface is arranged in the conical lining (2) and is in clearance fit with the impeller (1), and the outer surface of the conical lining (2) is in sliding contact with the inner wall of the suction port (4); and a gap adjusting component for pushing the conical lining (2) to slide in the suction port (4) is arranged on the suction port (4).
2. The adjustable-impeller-clearance water pump according to claim 1, wherein: the clearance adjusting assembly comprises an adjusting rod (8) and an adjusting threaded sleeve (6), one end of the adjusting rod (8) is connected with the conical lining (2), and the other end of the adjusting rod (8) penetrates through the outer wall of the suction port (4); the adjusting threaded sleeve (6) is sleeved on the adjusting rod (8) and moves axially along the adjusting rod (8), the adjusting threaded sleeve (6) and the adjusting rod (8) are coaxially arranged, and one end of the adjusting threaded sleeve (6) penetrates through the suction port (4) and is in contact with the conical lining (2); the sliding direction of the conical inner lining (2) in the suction opening (4) is parallel to the axis of the adjusting rod (8).
3. The adjustable-impeller-clearance water pump according to claim 2, wherein: the adjusting screw sleeve (6) is in threaded connection with the suction port (4) and is in threaded connection with the adjusting rod (8).
4. The adjustable-impeller-clearance water pump according to claim 2, wherein: the clearance adjusting assembly further comprises a locking nut (7), and the locking nut (7) is in threaded connection with the adjusting rod (8); the locking nut (7) is positioned at one end of the adjusting rod (8) which penetrates through the outer wall of the suction port (4) and is contacted with the end part of the adjusting threaded sleeve (6).
5. The adjustable-impeller-clearance water pump according to claim 2, wherein: the adjusting rod (8) is a stud, a threaded blind hole matched with the adjusting rod (8) is formed in the conical lining (2), and the end of the adjusting rod (8) is in threaded connection with the threaded blind hole.
6. The adjustable-impeller-clearance water pump according to claim 2, wherein: one end of the adjusting screw sleeve (6) positioned in the suction port (4) is provided with a spacer sleeve (5), the conical lining (2) is provided with a contact end face, and the spacer sleeve (5) is in surface contact with the contact end face of the conical lining (2).
7. The adjustable-impeller-clearance water pump according to claim 2, wherein: the number of the gap adjusting assemblies is more than or equal to three groups, and the gap adjusting assemblies are uniformly arranged on the suction port (4) in an annular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122876743.3U CN216241325U (en) | 2021-11-22 | 2021-11-22 | Water pump capable of adjusting impeller clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122876743.3U CN216241325U (en) | 2021-11-22 | 2021-11-22 | Water pump capable of adjusting impeller clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216241325U true CN216241325U (en) | 2022-04-08 |
Family
ID=80953855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122876743.3U Active CN216241325U (en) | 2021-11-22 | 2021-11-22 | Water pump capable of adjusting impeller clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216241325U (en) |
-
2021
- 2021-11-22 CN CN202122876743.3U patent/CN216241325U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201731084U (en) | Novel erosion-resistant cage sleeve throttle valve | |
| CN216241325U (en) | Water pump capable of adjusting impeller clearance | |
| CN219911268U (en) | Energy-saving device for adjusting pre-rotation flow at inlet of centrifugal pump | |
| CN110848144B (en) | Wear-resistant semi-open type solid-liquid two-phase flow pump impeller with detachable working surface | |
| CN208880458U (en) | A kind of taper roller spherical end surface superfinishing device | |
| CN204387354U (en) | Bidirectional flow is wear-resisting revolves Ball type butlerfly valve | |
| CN213177181U (en) | From taking knob flange relief valve | |
| CN203604258U (en) | Centrifugal pump | |
| CN210715302U (en) | Multistage centrifugal pump balance disc | |
| CN210599769U (en) | Novel stainless steel eyelet bolt | |
| CN200982311Y (en) | Seal adjustable slurry pump | |
| CN206592333U (en) | A kind of adjustable high-efficiency abrasion-proof disk device applied in rubber liner Pulp pump | |
| CN106837851B (en) | Adjustable efficient wear-resisting disc device applied to rubber lining slurry pump | |
| CN212643170U (en) | High stability engineering plastics sealing ring for centrifugal pump | |
| CN213629352U (en) | Novel high-speed rotary joint | |
| CN216242380U (en) | Piston type regulating valve capable of preventing piston from sinking | |
| CN2526618Y (en) | Ball valve with high-performance parameter | |
| CN208695123U (en) | Roll shafts of roll press end face baffle mechanism | |
| CN211315428U (en) | Pipeline pump with adjustable flange | |
| CN201348048Y (en) | Metal hard-sealed telescopic butterfly valve | |
| CN216112473U (en) | Removable case head structure of black water angle valve | |
| CN219655274U (en) | Novel internal structure of regulating valve | |
| CN211231642U (en) | Gate valve with telescopic function | |
| CN204253373U (en) | A kind of clearance adjustable type centrifugal pump | |
| CN113883097A (en) | Centrifugal pump adjustable preposed guide vane device capable of widening high-efficiency area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |