CN214661040U - Single-stage double-suction centrifugal pump with high sealing performance - Google Patents
Single-stage double-suction centrifugal pump with high sealing performance Download PDFInfo
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- CN214661040U CN214661040U CN202121153638.0U CN202121153638U CN214661040U CN 214661040 U CN214661040 U CN 214661040U CN 202121153638 U CN202121153638 U CN 202121153638U CN 214661040 U CN214661040 U CN 214661040U
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Abstract
The utility model is suitable for a centrifugal pump technical field provides a single-stage double entry centrifugal pump that leakproofness is strong, include: the mounting structure comprises a mounting seat, wherein the upper end face of the mounting seat is fixedly provided with an electric motor through bolt and nut connection, the left end of a connecting flange is fixedly provided with a transmission rod, a first pump shell is arranged on the left side of the electric motor, the upper end of the first pump shell is fixedly connected with a second pump shell, the left end face of the first pump shell is provided with a three-way joint playing a connecting role, a connecting wheel is arranged in the first pump shell, a fixing block is fixedly arranged in the first pump shell, the fixing block is welded and fixed on the right end face of the inner part of the first pump shell, and a sealing mechanism is arranged in the fixing block. The utility model discloses a single-stage double entry centrifugal pump that leakproofness is strong, the leakproofness is better, and conveniently changes the easy component that wears of junction, has solved present single-stage double entry centrifugal pump and has not possessed better seal structure, leads to the problem that the connection position of centrifugal pump leaks easily.
Description
Technical Field
The utility model belongs to the technical field of the centrifugal pump, especially, relate to a single-stage double entry centrifugal pump that leakproofness is strong.
Background
Compared with a single-stage single-suction centrifugal pump, the single-stage double-suction centrifugal pump has the advantages of higher efficiency, larger flow, higher lift, larger volume, heavier weight, and is mainly used for fixed operation and suitable for various hydraulic engineering such as factories, mines, urban water supply, power stations, farmland irrigation and drainage, and the like;
for example, chinese patent is granted and is published as a single-stage double suction centrifugal pump of CN210738820U, it includes organism main casing, servo motor and centrifugal pump subassembly, servo motor installs inside organism main casing, centrifugal pump subassembly mainly includes: the centrifugal pump comprises a centrifugal pump shell, a motor transmission shaft, a motor gear, a transmission gear, a gear transmission shaft and a centrifugal impeller, wherein the centrifugal pump shell is connected to a main shell of the machine body; the utility model relates to a centrifugal pump technical field, this device simple structure, low in cost has the double suction function, and it is efficient to go out water, and the lift is high, and impurity such as solid particle in this device ability filtration liquid prevents to block and damage because of inhaling the device card that impurity caused, improves optimization structure, controlling means production price.
However, the above prior art solutions have the following drawbacks: the single-stage double-suction centrifugal pump is not provided with a good sealing structure, so that the connection part of the centrifugal pump is easy to leak water, the connection stability is poor, meanwhile, the connection part is easy to wear, and elements are inconvenient to replace.
SUMMERY OF THE UTILITY MODEL
The utility model provides a single-stage double entry centrifugal pump that leakproofness is strong aims at solving present single-stage double entry centrifugal pump and does not possess better seal structure, leads to the connection position of centrifugal pump to leak easily, and connection stability is relatively poor, connects the easy wearing and tearing of position simultaneously, the inconvenient problem of changing the component.
The utility model discloses a realize like this, a single-stage double entry centrifugal pump that leakproofness is strong, include:
the upper end surface of the mounting seat is fixedly connected with a motor through bolts and nuts, the left end of the motor is connected with a connecting flange, and a transmission rod is fixedly arranged at the left end of the connecting flange;
the centrifugal pump comprises a first pump shell, a second pump shell, a first impeller, a second impeller, a third impeller, a fourth impeller, a fifth impeller, a sixth impeller, a fifth impeller, a sixth impeller, a fifth impeller, a sixth impeller, a fifth impeller, a sixth impeller, a fifth impeller, a sixth impeller, a fifth impeller, a sixth impeller;
an adapter wheel mounted inside the first pump casing;
the fixed block is welded and fixed on the right end face of the inside of the first pump shell, a sealing mechanism is arranged inside the fixed block, and a rubber sealing ring is arranged on the inner side of the sealing mechanism.
By adopting the technical scheme, the mounting seat plays a role in supporting the first pump shell and the motor, the first pump shell and the second pump shell are conveniently disassembled, and the fixing block plays a role in fixing the sealing mechanism and the rubber sealing ring.
As a preferred technical scheme of the utility model, the impeller and the first pump shell form a rotary connection, and the inner end of the impeller and the connecting wheel form a meshing connection through a gear structure;
by adopting the technical scheme, the impeller monomer is conveniently driven to rotate to work through the connecting wheel.
As the preferred technical scheme of the utility model, the left and right ends of the transmission rod are both provided with connecting flanges, and the connecting flange monomer at the left end of the transmission rod is fixedly connected with the connecting wheel through bolts;
by adopting the technical scheme, the transmission rod is arranged between the connecting wheel and the motor and is detachably connected with the motor and the connecting wheel through the connecting flange monomer, so that the transmission rod is convenient to replace.
As a preferred technical scheme of the utility model, the sealing mechanism comprises a connecting block, an extrusion ball and a tension spring, wherein the extrusion ball is arranged on one side of the connecting block close to the rubber sealing ring, and the tension spring is arranged on one side of the connecting block away from the rubber sealing ring;
by adopting the technical scheme, the connecting block plays a role in limiting the extrusion ball, and the space between the single connecting blocks facilitates the movement of the connecting block.
As a preferred technical scheme of the utility model, a groove structure is arranged on the inner end surface of the joining block, and the joining block is rotationally connected with the extrusion ball through the groove structure;
by adopting the technical scheme, the friction force between the extrusion ball and the rubber sealing ring is reduced through the movable arrangement of the extrusion ball.
As the preferable technical proposal of the utility model, the connecting block and the tension spring are evenly distributed on the inner surface of the fixed block and play the role of supporting the extrusion ball;
by adopting the technical scheme, the connecting block and the extrusion ball generate extrusion force on the fixed block through the elasticity of the tension spring.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a single-stage double entry centrifugal pump that leakproofness is strong, the leakproofness is better, and conveniently changes the easy component that wears of junction, has solved present single-stage double entry centrifugal pump and has not possessed better seal structure, leads to the problem that the connection position of centrifugal pump leaks easily.
1. The connecting block extrudes the extrusion ball inwards, so that the rubber sealing ring is tightly attached to the outer end face of the transmission rod, and the sealing performance is improved;
2. the transmission rod and the connecting flange are arranged, the connecting flange is arranged at the left end and the right end of the transmission rod, and the transmission rod is detachably connected with the motor and the connecting wheel through the connecting flange monomer respectively, so that the transmission rod is convenient to replace, and the phenomenon that the transmission rod is excessively worn to cause the water leakage of a gap between the transmission rod and the first pump shell is avoided;
3. the single-stage double-suction centrifugal pump is provided with a fixed block, a sealing mechanism and a rubber sealing ring, the sealing mechanism is arranged in the fixed block, the connecting block and the tensioning spring are uniformly distributed on the inner surface of the fixed block, and the rubber sealing ring and the connecting block are rotationally connected with the extrusion ball, so that the friction force between the extrusion ball and the rubber sealing ring is conveniently reduced, and meanwhile, the distance between the single connecting blocks is convenient for the connecting blocks to move, and the problem that the connecting part of the centrifugal pump is easy to leak water because the existing single-stage double-suction centrifugal pump does not have a good sealing structure is solved;
drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the cross-sectional structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;
fig. 4 is the utility model discloses the fixed block is connected with sealing mechanism and is looked sideways at section structure schematic diagram.
In the figure: the device comprises a mounting base 1, a motor 2, a first pump shell 3, a second pump shell 4, a centrifugal pump shell 5, an impeller 6, a connecting wheel 7, a transmission rod 8, a connecting flange 9, a fixing block 10, a sealing mechanism 11, a connecting block 1101, an extrusion ball 1102, a tension spring 1103, a rubber sealing ring 12 and a tee joint 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-4, the present invention provides a single-stage double-suction centrifugal pump with high sealing performance: the method comprises the following steps: the upper end face of the mounting seat 1 is fixedly provided with the motor 2 through bolt and nut connection, the left end of the motor 2 is connected with the connecting flange 9, the left end of the connecting flange 9 is fixedly provided with the transmission rod 8, the left side of the motor 2 is provided with the first pump shell 3, and the mounting seat 1 plays a role in supporting the first pump shell 3 and the motor 2;
the upper end of the first pump shell 3 is fixedly connected with a second pump shell 4, the first pump shell 3 and the second pump shell 4 are conveniently detached, the centrifugal pump shells 5 are arranged at the front end and the rear end of the first pump shell 3, impellers 6 are arranged in the centrifugal pump shells 5, a tee joint 13 playing a role in connection is arranged on the left end face of the first pump shell 3, the connecting wheel 7 is arranged in the first pump shell 3, the fixing block 10 is fixedly welded on the right end face of the inner portion of the first pump shell 3, the sealing mechanism 11 is arranged in the fixing block 10, a rubber sealing ring 12 is arranged on the inner side of the sealing mechanism 11, and the fixing block 10 plays a role in fixing the sealing mechanism 11 and the rubber sealing ring 12;
when the communication cable winding device is used, firstly, as shown in fig. 1 and 2, the motor 2 works to drive the connecting wheel 7 and the transmission rod 8 to rotate, the impeller 6 is rotatably connected with the first pump shell 3, and the inner end of the impeller 6 is in meshed connection with the connecting wheel 7 through a gear structure, so that the impeller 6 is driven to rotate, and the transmission rod 8 is easily abraded between the transmission rod 8 and the rubber sealing ring 12 in the rotating process of the transmission rod 8, so that the transmission rod 8 is conveniently replaced by arranging the connecting flanges 9 at the left end and the right end of the transmission rod 8, and the transmission rod 8 is detachably connected with the motor 2 and the connecting wheel 7 through the connecting flange 9 monomer, so that the gap between the transmission rod 8 and the first pump shell 3 is prevented from generating water leakage due to excessive abrasion of the transmission rod 8;
as shown in fig. 3 and 4 in particular, by providing the fixed block 10 and the sealing mechanism 11 at the right end face inside the first pump casing 3, the engaging block 1101 and the tension spring 1103 are uniformly distributed on the inner surface of the fixed block 10, meanwhile, the inner end surface of the joining block 1101 is provided with a groove structure, the joining block 1101 plays a role of limiting the extrusion ball 1102 through the groove structure, and the rubber seal ring 12 and the connecting block 1101 are rotationally connected with the extrusion ball 1102, so that the friction between the extrusion ball 1102 and the rubber seal ring 12 is conveniently reduced, meanwhile, the space between the single engaging blocks 1101 facilitates the moving of the engaging blocks 1101, the elasticity of the tension spring 1103 causes the engaging blocks 1101 and the extrusion balls 1102 to generate extrusion force on the fixed block 10, the engaging blocks 1101 extrude the extrusion balls 1102 inwards, further, the rubber sealing ring 12 is tightly attached to the outer end face of the transmission rod 8, and the sealing performance is improved, so that the single-stage double-suction centrifugal pump with high sealing performance is used.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a single-stage double entry centrifugal pump with leakproofness is strong which characterized in that: the method comprises the following steps:
the upper end surface of the mounting seat is fixedly connected with a motor through bolts and nuts, the left end of the motor is connected with a connecting flange, and a transmission rod is fixedly arranged at the left end of the connecting flange;
the centrifugal pump comprises a first pump shell, a second pump shell, a first impeller, a second impeller, a third impeller, a fourth impeller, a fifth impeller, a sixth impeller, a fifth impeller, a sixth impeller, a fifth impeller, a sixth impeller, a fifth impeller, a sixth impeller, a fifth impeller, a sixth impeller, a fifth impeller, a sixth impeller;
an adapter wheel mounted inside the first pump casing;
the fixed block is welded and fixed on the right end face of the inside of the first pump shell, a sealing mechanism is arranged inside the fixed block, and a rubber sealing ring is arranged on the inner side of the sealing mechanism.
2. A single-stage double suction centrifugal pump with high sealing performance as claimed in claim 1, wherein: the impeller and the first pump shell are connected in a rotating mode, and the inner end of the impeller is connected with the connecting wheel in a meshing mode through a gear structure.
3. A single-stage double suction centrifugal pump with high sealing performance as claimed in claim 1, wherein: and the left end and the right end of the transmission rod are both provided with connecting flanges, and the connecting flange monomer at the left end of the transmission rod is fixedly connected with the connecting wheel through bolts.
4. A single-stage double suction centrifugal pump with high sealing performance as claimed in claim 1, wherein: the sealing mechanism comprises a connecting block, an extrusion ball and a tensioning spring, wherein the extrusion ball is arranged on one side, close to the rubber sealing ring, of the connecting block, and the tensioning spring is arranged on one side, far away from the rubber sealing ring, of the connecting block.
5. A single-stage double suction centrifugal pump with high sealing performance as claimed in claim 4, wherein: the inner end face of the connecting block is provided with a groove structure, and the connecting block is rotatably connected with the extrusion ball through the groove structure.
6. A single-stage double suction centrifugal pump with high sealing performance as claimed in claim 4, wherein: the connecting block and the tensioning spring are uniformly distributed on the inner surface of the fixing block and play a role in supporting the extrusion ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121153638.0U CN214661040U (en) | 2021-05-24 | 2021-05-24 | Single-stage double-suction centrifugal pump with high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121153638.0U CN214661040U (en) | 2021-05-24 | 2021-05-24 | Single-stage double-suction centrifugal pump with high sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214661040U true CN214661040U (en) | 2021-11-09 |
Family
ID=78496419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121153638.0U Active CN214661040U (en) | 2021-05-24 | 2021-05-24 | Single-stage double-suction centrifugal pump with high sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214661040U (en) |
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2021
- 2021-05-24 CN CN202121153638.0U patent/CN214661040U/en active Active
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