CN114776628A - Large-channel spiral submersible pump with adjustable impeller clearance - Google Patents
Large-channel spiral submersible pump with adjustable impeller clearance Download PDFInfo
- Publication number
- CN114776628A CN114776628A CN202210579605.5A CN202210579605A CN114776628A CN 114776628 A CN114776628 A CN 114776628A CN 202210579605 A CN202210579605 A CN 202210579605A CN 114776628 A CN114776628 A CN 114776628A
- Authority
- CN
- China
- Prior art keywords
- pump
- pump body
- adjusting nut
- impeller
- seat
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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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0027—Varying behaviour or the very pump
- F04D15/0033—By-passing by increasing clearance between impeller and its casing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a large-channel spiral submersible pump with an adjustable impeller gap, which comprises a pump body and a pump seat, wherein the pump body is connected with a pump shaft in a penetrating manner, the pump shaft is connected with an impeller, the impeller is arranged in the pump body and the pump seat connected with the lower end of the pump body, an external thread on the periphery of an adjusting nut is screwed on an upper horizontal flange of the pump seat, an internal thread in an inner hole of the adjusting nut is screwed with a locking bolt, the locking bolt is locked and connected with the pump body, the upper end face of the adjusting nut is attached to and supports the lower end face of the pump body, and the screwing directions of the internal thread and the external thread of the adjusting nut are opposite. Its simple structure can convenient adjust error, the wearing and tearing clearance that impeller and pump seat caused because of processing, long-term use wearing and tearing, ensures that the clearance of impeller and pump seat is controllable, prevents to reveal and influence pump operation power.
Description
Technical Field
The invention relates to a submersible pump, in particular to a large-channel spiral submersible pump with an adjustable impeller gap.
Background
The submersible pump is used for conveying sewage media and is generally provided with the large-channel impeller to ensure no blockage, and the spiral large-channel impeller is a novel blockage-free impeller, has stronger large-particle passing capacity and can even convey live fish. However, the clearance between the open type blade and the pump seat is matched by the contour curve, the curve is completely controlled by the machining precision of the impeller and the pump seat part, the clearance of the impeller cannot be ensured due to the accumulated assembly error, the leakage seriously affects the efficiency when the clearance is too large after the assembly, and the interference and the friction are easy when the clearance is too small.
Disclosure of Invention
The invention provides the large-channel spiral submersible pump with the adjustable impeller gap, which is simple in structure, can conveniently adjust the error and the abrasion gap caused by abrasion of the impeller and the pump seat due to processing and long-term use, ensures that the gap between the impeller and the pump seat is controllable, and prevents leakage and influence on the operating power of the pump.
The technical scheme adopted by the invention is as follows: the utility model provides an adjustable immersible pump in spiral impeller clearance of big passageway, includes the pump body, pump seat, and pump body cross-under pump shaft, pump shaft joint impeller, the impeller is arranged in the pump body and is connected and pump seat of pump body lower extreme, its characterized in that: the upper horizontal flange of the pump seat is screwed with the external thread on the periphery of the adjusting nut, the internal thread of the inner hole of the adjusting nut is screwed with the locking bolt, the locking bolt is locked and connected with the pump body, the upper end surface of the adjusting nut is attached to the lower end surface of the supporting pump body, and the internal thread and the external thread of the adjusting nut are opposite in turning direction.
The pump seat still is equipped with circumference joint section, sets up multichannel sealing washer laminating pump body end opening inner wall on the circumference joint section.
The hardness of the adjusting nut is greater than that of the pump body and the pump base.
And the upper end surface of the adjusting nut is provided with a nut flange for supporting the pump body.
The invention adopts the adjusting nut to cross and connect the lower end surface of the upper and lower adjustable supporting pump body on the horizontal flange of the pump seat, thereby completing the adjustment when the gap is generated between the impeller and the pump seat due to processing error or use abrasion, ensuring the controllable gap between the impeller and the pump seat, preventing leakage and effectively ensuring the stable rated operating power of the pump.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: the pump body 1, pump shaft 2, impeller 3, pump seat 4, last horizontal flange 5, circumference joint section 6, sealing washer 7, adjusting nut 8, locking bolt 9.
Detailed Description
The following is a further description with reference to the drawings and examples.
FIG. 1 shows: the utility model provides an adjustable immersible pump in spiral impeller clearance of big passageway, including the pump body 1, the pump shaft 2, impeller 3, pump seat 4, adjusting nut 8, locking bolt 9, 1 cross-under pump shaft 2 of the pump body, the pump shaft connects impeller 3, impeller 3 arranges in the pump body 1 and connects in the pump seat 4 with pump body lower extreme, the external screw thread of 8 peripheries of adjusting nut is connected on the last horizontal flange 5 of pump seat, adjusting nut hole internal thread connects locking bolt 9 soon, the locking bolt lock connects the pump body, adjusting nut's up end laminating supports pump body lower extreme terminal surface, adjusting nut's interior, the external screw is revolved to opposite.
In this embodiment, the pump base is further provided with a circumferential bonding section 6, and a plurality of sealing rings 7 are arranged on the circumferential bonding section and attached to the inner wall of the lower opening of the pump body.
In order to ensure the stable support, the hardness of the adjusting nut is greater than that of the pump body and the pump base, and a nut flange for supporting the pump body is arranged on the upper end face of the adjusting nut.
Claims (4)
1. The utility model provides an adjustable immersible pump in spiral impeller clearance of big passageway, includes the pump body, pump seat, and pump body cross-under pump shaft, pump shaft joint impeller, the impeller is arranged in the pump body and is connected and pump seat of pump body lower extreme, its characterized in that: the upper horizontal flange of the pump base is screwed with the external thread on the periphery of the adjusting nut, the internal thread of the inner hole of the adjusting nut is screwed with the locking bolt, the locking bolt is locked and connected with the pump body, the upper end surface of the adjusting nut is attached to the lower end surface of the pump body, and the internal thread and the external thread of the adjusting nut are opposite in screwing direction.
2. The large channel spiral impeller clearance adjustable submersible pump of claim 1, characterized by: the pump seat still is equipped with circumference joint section, sets up multichannel sealing washer laminating pump body end opening inner wall on the circumference joint section.
3. The submersible pump with the adjustable clearance of the large-channel spiral impeller according to claim 1, characterized in that: the hardness of the adjusting nut is greater than that of the pump body and the pump seat.
4. The large channel spiral impeller clearance adjustable submersible pump of claim 3, characterized by: and the upper end surface of the adjusting nut is provided with a nut flange for supporting the pump body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210579605.5A CN114776628A (en) | 2022-05-26 | 2022-05-26 | Large-channel spiral submersible pump with adjustable impeller clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210579605.5A CN114776628A (en) | 2022-05-26 | 2022-05-26 | Large-channel spiral submersible pump with adjustable impeller clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114776628A true CN114776628A (en) | 2022-07-22 |
Family
ID=82409458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210579605.5A Pending CN114776628A (en) | 2022-05-26 | 2022-05-26 | Large-channel spiral submersible pump with adjustable impeller clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114776628A (en) |
-
2022
- 2022-05-26 CN CN202210579605.5A patent/CN114776628A/en active Pending
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |