CN209943122U - Single-stage centrifugal pump - Google Patents
Single-stage centrifugal pump Download PDFInfo
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- CN209943122U CN209943122U CN201920523035.1U CN201920523035U CN209943122U CN 209943122 U CN209943122 U CN 209943122U CN 201920523035 U CN201920523035 U CN 201920523035U CN 209943122 U CN209943122 U CN 209943122U
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- stage centrifugal
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Abstract
The utility model relates to a single-stage centrifugal pump, a permanent magnet synchronous motor is fixed on a motor base through a second hexagon head bolt, a second flat gasket and a second hexagon screw, the motor base is fixed on a pump body through a stud, a third hexagon nut and a third spring gasket, and the pump body is fixed on a bottom plate through a first hexagon head bolt and a first spring gasket; the working shaft of the permanent magnet synchronous motor extends into the motor base and is connected to the pump shaft through the motor coupling, and the impeller is fixed at the end part of the pump shaft through a first hexagon nut, a second spring washer and a first flat washer; the impeller is located inside the pump body, the pump shaft is located inside the pump body and the motor base, the outer ring of the upper portion of the pump shaft is sealed with the inside of the motor base through a sealing piece, and the side cavity of the pump shaft is communicated with the outside through an air release valve. The utility model discloses with converter perfect adaptation, system efficiency height, all-in-one from taking the programming function, having high flexibility, low noise.
Description
Technical Field
The utility model relates to a centrifugal pump technical field, especially one kind with converter perfect adaptation, system efficient, all-in-one from the flexibility that takes the programming function, has height, low noise's single-stage centrifugal pump.
Background
The single-stage centrifugal pump comprises a pump body, a pump cover and a motor with an output shaft, wherein a pump shaft, a bearing seat, an impeller, a mechanical seal and a mechanical seal gland are arranged in the pump body and are connected with the motor through a lengthened elastic coupling, and the rotation direction of the pump is clockwise when viewed from a driving end. The double-clamp type motor pump also comprises a double-clamp type coupling arranged between the output shaft of the motor and the pump shaft and a guide bearing which is arranged on a bearing seat and is used for assisting in supporting the pump shaft; the clamp type coupler is respectively and rigidly connected with the output shaft of the motor and the pump shaft, and a space distance which is convenient for assembling and disassembling the mechanical seal and the mechanical seal gland is reserved between the output shaft of the motor and the pump shaft. When the mechanical seal is repaired or replaced, the motor and the pump cover do not need to be disassembled.
The flexibility of the existing single-stage centrifugal pump needs to be further improved, the noise needs to be further reduced, and the system efficiency needs to be improved. A single-stage centrifugal pump which is perfectly combined with a frequency converter, has high system efficiency, a programming function of an all-in-one machine, high flexibility and low noise is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a with converter perfect adaptation, system efficiency height, all-in-one from the single-stage centrifugal pump who takes programming function, have high flexibility, low noise.
A single stage centrifugal pump comprising:
the permanent magnet synchronous motor is fixed on a motor base through a second hexagon head bolt, a second flat washer and a second hexagon screw, the motor base is fixed on a pump body through a stud, a third hexagon nut and a third spring washer, and the pump body is fixed on a bottom plate through a first hexagon head bolt and a first spring washer;
the working shaft of the permanent magnet synchronous motor extends into the motor base and is connected to the pump shaft through the motor coupler, and the impeller is fixed at the end part of the pump shaft through a first hexagon nut, a second spring washer and a first flat washer;
the impeller is located inside the pump body, the pump shaft is located in the pump body and the motor base, the outer ring of the upper portion of the pump shaft is sealed with the inside of the motor base through a sealing piece, and the side cavity of the pump shaft is communicated with the outside through a release valve.
The motor base is fixed with a guard plate through a rivet.
And an inlet of the pump body is provided with an inner hexagonal plug screw.
The inlet and the outlet of the pump body are positioned on the same horizontal plane, and the inlet is sunken and then ascends and is communicated with the outlet through an impeller.
A first flat key is arranged between the impeller and the pump shaft.
The pump body and the motor base are sealed through an O-shaped sealing ring.
And the motor coupler is fixed on a working shaft of the permanent magnet synchronous motor through a second flat key and a set screw.
The pump shaft is fixed on the motor coupling through an inner hexagonal bolt head screw.
The utility model discloses a permanent magnet synchronous motor passes through second hexagon head bolt, and second flat packing ring and second hexagon screw are fixed at the motor cabinet, and the motor cabinet passes through stud, and third hexagon nut and third spring washer are fixed on the pump body, and the pump body passes through first hexagon head bolt and first spring washer to be fixed on the bottom plate; the working shaft of the permanent magnet synchronous motor extends into the motor base and is connected to the pump shaft through the motor coupling, and the impeller is fixed at the end part of the pump shaft through a first hexagon nut, a second spring washer and a first flat washer; the impeller is located inside the pump body, the pump shaft is located inside the pump body and the motor base, the outer ring of the upper portion of the pump shaft is sealed with the inside of the motor base through a sealing piece, and the side cavity of the pump shaft is communicated with the outside through an air release valve. The permanent magnet synchronous motor is fixed on a motor base through a second hexagon head bolt, a second flat washer and a second hexagon screw, the motor base is fixed on a pump body through a stud, a third hexagon nut and a third spring washer, and the pump body is fixed on a bottom plate through a first hexagon head bolt and a first spring washer, so that the single-stage centrifugal pump is connected into a whole and is tightly matched; the working shaft of the permanent magnet synchronous motor extends into the motor base and is connected to the pump shaft through the motor coupler, the end part of the pump shaft passes through the first hexagon nut, the second spring washer and the first flat washer fix the impeller, the impeller is positioned inside the pump body, the pump shaft is positioned in the pump body and the motor base, the outer ring of the upper part of the pump shaft passes through the sealing element and is sealed with the inside of the motor base, the side cavity of the pump shaft is communicated with the outside through the air release valve, the working shaft of the permanent magnet synchronous motor passes through the motor coupler and the pump shaft to drive the impeller, and through tight fit, the system efficiency. The permanent magnet synchronous motor and the frequency converter are perfectly combined, and the integrated machine has a programming function and is convenient to control. And air release valves are arranged at the motor coupling and the pump shaft, so that air release is convenient. The utility model discloses with converter perfect adaptation, system efficiency height, all-in-one from taking the programming function, having high flexibility, low noise.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
in the figure: 1. the pump comprises a first hexagon head bolt, 2, a first spring washer, 3, a bottom plate, 4, a pump body, 5, a first hexagon nut, 6, a second spring washer, 7, a first flat washer, 8, an impeller, 9, a first flat key, 10, a sealing element, 11, an O-shaped sealing ring, 12, a motor base, 13, a vent valve, 14, a pump shaft, 15, an inner hexagon bolt head screw, 16, a motor coupler, 17, a second flat key, 18, a fastening screw, 19, a second hexagon head bolt, 20, a second flat washer, 21, a second hexagon nut, 22, a permanent magnet synchronous motor, 23, a guard plate, 24, a double-end stud, 25, a third hexagon nut, 26, a third spring washer, 27 and an inner hexagon plug.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
A single stage centrifugal pump, comprising: the permanent magnet synchronous motor 22 is fixed on the motor base 12 through a second hexagon head bolt 19, a second flat washer 20 and a second hexagon screw 21, the motor base 12 is fixed on the pump body 4 through a stud 24, a third hexagon nut 25 and a third spring washer 26, and the pump body 4 is fixed on the bottom plate 3 through a first hexagon head bolt 1 and a first spring washer 2; the working shaft of the permanent magnet synchronous motor 22 extends into the motor base 12 and is connected to the pump shaft 14 through the motor coupling 16, and the impeller 8 is fixed at the end part of the pump shaft 14 through the first hexagon nut 5, the second spring washer 6 and the first flat washer 7; the impeller 8 is located inside the pump body 4, the pump shaft 14 is located inside the pump body 4 and the motor base 12, the outer ring of the upper portion of the pump shaft 14 is sealed with the inside of the motor base 12 through the sealing piece 10, and the side cavity of the pump shaft 14 is communicated with the outside through the air release valve 13.
The motor base 12 is fixed with a guard plate 23 by a rivet. An inner hexagonal plug screw 27 is arranged at the inlet of the pump body 4. The inlet and the outlet of the pump body 4 are positioned on the same horizontal plane, and the inlet is sunken and then ascends and is communicated with the outlet through an impeller 8. A first flat key 9 is arranged between the impeller 8 and the pump shaft 14. The pump body 4 and the motor base 12 are sealed by an O-shaped sealing ring 11. The motor coupling 16 is fixed to the working shaft of the permanent magnet synchronous motor 22 by a second flat key 17 and a set screw 18. The pump shaft 14 is secured to a motor coupling 16 by socket head cap screws 15.
The permanent magnet synchronous motor 22 is fixed on the motor base 12 through a second hexagon head bolt 19, a second flat washer 20 and a second hexagon screw 21, the motor base 12 is fixed on the pump body 4 through a stud 24, a third hexagon nut 25 and a third spring washer 26, and the pump body 4 is fixed on the bottom plate 3 through a first hexagon head bolt 1 and a first spring washer 2, so that the single-stage centrifugal pump is connected into a whole and is tightly matched; the working shaft of the permanent magnet synchronous motor 22 extends into the motor base 12 and is connected to the pump shaft 14 through the motor coupling 16, the end part of the pump shaft 14 passes through the first hexagon nut 5, the second spring washer 6 and the first flat washer 7 fix the impeller 8, the impeller 8 is positioned inside the pump body 4, the pump shaft 14 is positioned inside the pump body 4 and the motor base 12, the outer ring of the upper part of the pump shaft 14 passes through the sealing piece 10 and is sealed with the inside of the motor base 12, the side cavity of the pump shaft 14 is communicated with the outside through the air release valve 13, the working shaft of the permanent magnet synchronous motor 22 passes through the motor coupling 16 and the pump shaft 14 to drive the impeller 8, and through tight fit, the system efficiency is. The permanent magnet synchronous motor 22 and the frequency converter are perfectly combined, and the integrated machine has a programming function and is convenient to control. And the motor coupling 16 and the pump shaft 14 are provided with air release valves 13, so that air release is convenient.
The vertical single-stage centrifugal pump adopts the perfect combination of the permanent magnet synchronous motor and the frequency converter, has high system efficiency, has a programming function of the integrated machine, and has the advantages of high flexibility, low noise and the like.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A single stage centrifugal pump, comprising:
the permanent magnet synchronous motor (22) is fixed on the motor base (12) through a second hexagon head bolt (19), a second flat washer (20) and a second hexagon screw (21), the motor base (12) is fixed on the pump body (4) through a stud (24), a third hexagon nut (25) and a third spring washer (26), and the pump body (4) is fixed on the bottom plate (3) through a first hexagon head bolt (1) and a first spring washer (2);
the working shaft of the permanent magnet synchronous motor (22) extends into the motor base (12) and is connected to the pump shaft (14) through the motor coupling (16), and the impeller (8) is fixed at the end part of the pump shaft (14) through the first hexagon nut (5), the second spring washer (6) and the first flat washer (7);
impeller (8) are located inside pump body (4), pump shaft (14) are located pump body (4) and motor cabinet (12), the inside seal of pump shaft (14) upper portion outer lane through sealing member (10) and motor cabinet (12), the side cavity of pump shaft (14) leads to with the external world through bleed valve (13).
2. A single-stage centrifugal pump according to claim 1, wherein the motor mount (12) has a cover plate (23) fixed thereto by rivets.
3. A single-stage centrifugal pump according to claim 1, characterized in that an internal hexagonal plug (27) is provided at the inlet of the pump body (4).
4. A single-stage centrifugal pump according to claim 1, wherein the inlet and the outlet of the pump body (4) are in the same horizontal plane, and the inlet is concave and then rises and is communicated with the outlet through the impeller (8).
5. A single-stage centrifugal pump according to claim 1, characterized in that a first flat key (9) is provided between the impeller (8) and the pump shaft (14).
6. A single-stage centrifugal pump according to claim 1, characterized in that the seal between the pump body (4) and the motor mount (12) is provided by an O-ring seal (11).
7. A single-stage centrifugal pump according to claim 1, characterized in that the motor coupling (16) is fixed to the working shaft of the permanent-magnet synchronous motor (22) by means of a second flat key (17) and a set screw (18).
8. A single-stage centrifugal pump according to claim 1, characterized in that the pump shaft (14) is fixed to the motor coupling (16) by means of socket head cap screws (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920523035.1U CN209943122U (en) | 2019-04-17 | 2019-04-17 | Single-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920523035.1U CN209943122U (en) | 2019-04-17 | 2019-04-17 | Single-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209943122U true CN209943122U (en) | 2020-01-14 |
Family
ID=69128357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920523035.1U Active CN209943122U (en) | 2019-04-17 | 2019-04-17 | Single-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209943122U (en) |
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2019
- 2019-04-17 CN CN201920523035.1U patent/CN209943122U/en active Active
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