CN216199018U

CN216199018U - Centrifugal pump with adjustable clearance between impeller and pump shell

Info

Publication number: CN216199018U
Application number: CN202122752396.3U
Authority: CN
Inventors: 李仲奇
Original assignee: V Flo Pumps & Systems Co ltd
Current assignee: V Flo Pumps & Systems Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-04-05
Anticipated expiration: 2031-11-11

Abstract

The utility model relates to the technical field of centrifugal pumps and discloses a centrifugal pump with an adjustable gap between an impeller and a pump shell. According to the utility model, the pump body is moved up and down to be adjusted to a proper position by loosening the four bolts III and the two bolts II, then the two bolts II are rotated to fix the first lug, the output shaft moves up and down in the groove in the process, the second lug moves up and down in the second limiting block to enable the whole body to be stable, the pressure plate is fixed by the bolts III, in the adjusting process, the height of the pump body needs to be adjusted, the bolts I and the nuts are loosened, the nuts are screwed after the pump body moves to be in contact with the transverse plate, the bolts I are screwed to stably support the bottom of the pump body, and the inserted rod is inserted into the fixing tube, so that the whole stability is good, and displacement is not easy to occur.

Description

Centrifugal pump with adjustable clearance between impeller and pump shell

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a centrifugal pump with an adjustable gap between an impeller and a pump shell.

Background

The centrifugal pump is a pump for conveying liquid by means of centrifugal force generated when an impeller rotates, a pump shell and a water suction pipe are filled with water before the water pump is started, then a motor is started, the pump shaft drives the impeller and the water to rotate at high speed, the water generates centrifugal motion and is thrown to the outer edge of the impeller, and the water flows into a water pressure pipeline of the water pump through a flow channel of a volute-shaped pump shell.

When the centrifugal pump is used, the gap between the impeller and the pump shell cannot be adjusted, the size of the gap between the impeller and the pump shell directly influences the efficiency of the pump, and the change of the pump flow can be realized by adjusting the gap between the impeller and the pump shell. In response to this situation, those skilled in the art have provided centrifugal pumps having adjustable impeller-casing clearances.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a centrifugal pump with an adjustable gap between an impeller and a pump shell, which aims to solve the problem that the gap between the impeller and the pump shell cannot be adjusted in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides an impeller and pump case clearance adjustable centrifugal pump, includes the base, the top fixed mounting of base has the motor, and the last fixed mounting of motor has the output shaft, is provided with the installation component on the output shaft, and fixed mounting has the pump body on the installation component, and one side of the pump body is provided with the notch, and the one end of output shaft runs through the notch and extends to in the pump body and install the impeller, is provided with the altitude mixture control subassembly between the bottom of the pump body and the base.

The mounting assembly comprises a pressure plate, the pressure plate sleeve is arranged on the output shaft, a bearing is fixedly mounted between the pressure plate and the output shaft, two first convex blocks and two second convex blocks are symmetrically and fixedly mounted on the side surface of the pressure plate, two first limiting blocks and two second limiting blocks are fixedly mounted on one side of the pump body symmetrically, the first convex blocks are inserted into the first limiting blocks, the second convex blocks are inserted into the second limiting blocks, a first threaded cylinder is fixedly mounted on one side of each first limiting block, and a second bolt is mounted on the first threaded cylinder through threads.

As a still further scheme of the utility model: one side of first stopper and second stopper all is provided with a screw thread section of thick bamboo two, and installs bolt three through the screw thread on the screw thread section of thick bamboo two.

As a still further scheme of the utility model: the pressure plate contacts with one side of the pump body, and a sealing gasket is arranged between the pressure plate and the base.

As a still further scheme of the utility model: the height adjusting assembly comprises a bottom block, a threaded rod is fixedly mounted in the center of the bottom block, two fixed tubes are fixedly mounted at the top of the base, a transverse plate is fixedly mounted between the two fixed tubes, and the threaded rod penetrates through the transverse plate and is provided with a nut.

As a still further scheme of the utility model: the transverse plate is symmetrically provided with two first bolts, the first bolts are in threaded connection with the transverse plate, and the tops of the first bolts are inserted into the bottom block.

As a still further scheme of the utility model: two inserting rods are symmetrically and fixedly installed at the bottom of the pump body and are respectively inserted into the two fixing pipes.

As a still further scheme of the utility model: two first stopper and second stopper are equidistant setting, and two first stoppers set up on same water flat line, and two second stoppers set up on same vertical line.

Compared with the prior art, the utility model has the beneficial effects that:

1. loosening the four third bolts and the two second bolts, moving the pump body up and down to a proper position, then rotating the two second bolts to fix the first bump, moving the output shaft up and down in the groove in the process, moving the second bump up and down in the second limiting block to enable the whole body to be stable, and fixing the pressure plate through the third bolts;

2. in the accommodation process, need adjust the height of the pump body, loosen bolt one and nut, screw up the nut after the pump body removes and contact with the diaphragm, screw up bolt one, can carry out the outrigger to the bottom of the pump body, the inserted bar is inserted in the fixed tube for overall stability is better, is difficult for taking place the displacement.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the notch and output shaft engagement of the present invention.

In the figure: 1. a base; 2. a motor; 3. a pump body; 4. a height adjustment assembly; 5. mounting the component; 6. a notch; 21. an output shaft; 41. a bottom block; 42. a threaded rod; 43. a fixed tube; 44. inserting a rod; 45. a transverse plate; 46. a nut; 47. a first bolt; 51. a platen; 52. a bearing; 53. a first bump; 54. a second bump; 55. a first stopper; 56. a first threaded cylinder; 57. a second bolt; 58. a second limiting block; 59. a second threaded cylinder; 510. and a third bolt.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and with reference to fig. 1 to 3, the embodiment of the present invention is as follows:

the utility model provides an impeller and pump case clearance adjustable centrifugal pump, includes base 1, base 1's top fixed mounting has motor 2, and the last fixed mounting of motor 2 has output shaft 21, be provided with installation component 5 on the output shaft 21, and fixed mounting has pump body 3 on the installation component 5, one side of the pump body 3 is provided with notch 6, the one end of output shaft 21 runs through notch 6 and extends to in the pump body 3 and install the impeller, be provided with altitude mixture control subassembly 4 between the bottom of the pump body 3 and the base 1.

The mounting assembly 5 comprises a pressure plate 51, the pressure plate 51 is sleeved on the output shaft 21, a bearing 52 is fixedly mounted between the pressure plate 51 and the output shaft 21, two first convex blocks 53 and two second convex blocks 54 are symmetrically and fixedly mounted on the side surface of the pressure plate 51, two first limiting blocks 55 and two second limiting blocks 58 are symmetrically and fixedly mounted on one side of the pump body 3, the first convex blocks 53 are inserted into the first limiting blocks 55, the second convex blocks 54 are inserted into the second limiting blocks 58, a first threaded cylinder 56 is fixedly mounted on one side of the first limiting blocks 55, and a second bolt 57 is mounted on the first threaded cylinder 56 through threads.

In fig. 1 and 2: a second threaded cylinder 59 is arranged on one side of each of the first limiting block 55 and the second limiting block 58, and a third bolt 510 is installed on the second threaded cylinder 59 through threads, so that sealing can be performed; the pressure plate 51 is contacted with one side of the pump body 3, and a sealing gasket is arranged between the pressure plate 51 and the base 1, so that the sealing gasket can seal; the height adjusting assembly 4 comprises a bottom block 41, a threaded rod 42 is fixedly installed in the center of the bottom block 41, two fixing tubes 43 are fixedly installed on the top of the base 1, a transverse plate 45 is fixedly installed between the two fixing tubes 43, and the threaded rod 42 penetrates through the transverse plate 45 and is provided with a nut 46, so that the height of the pump body 3 can be adjusted; two first bolts 47 are symmetrically arranged on the transverse plate 45, the first bolts 47 are in threaded connection with the transverse plate 45, and the tops of the first bolts 47 are inserted into the bottom block 41, so that the bottom of the pump body 3 is stable; two inserting rods 44 are symmetrically and fixedly installed at the bottom of the pump body 3, and the two inserting rods 44 are respectively inserted into the two fixed tubes 43, so that the whole body is stable; two first stopper 55 and second stopper 58 are equidistant setting, and two first stopper 55 settings are on same water flat line, and two second stopper 58 settings are on same vertical line for compact structure.

The working principle of the utility model is as follows: the four third bolts 510 are loosened, then the two second bolts 57 are loosened, the pump body 3 moves up and down to be adjusted to a proper position, then the two second bolts 57 are rotated to fix the first lug 53, in the process, the output shaft 21 moves up and down in the notch 6, the second lug 54 moves up and down in the second limiting block 58 to enable the whole to be stable, and then the third bolts 510 are used for fixing the pressure plate 51; in the adjusting process, the height of the pump body 3 needs to be adjusted, the first bolt 47 and the nut 46 are loosened, the nut 46 is screwed to be in contact with the transverse plate 45 after the pump body 3 moves, the first bolt 47 is screwed to stably support the bottom of the pump body 3, and the inserting rod 44 is inserted into the fixed pipe 43, so that the integral stability is good, and displacement is not easy to occur.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. A centrifugal pump with an adjustable gap between an impeller and a pump shell comprises a base (1) and is characterized in that a motor (2) is fixedly mounted at the top of the base (1), an output shaft (21) is fixedly mounted on the motor (2), a mounting assembly (5) is arranged on the output shaft (21), a pump body (3) is fixedly mounted on the mounting assembly (5), a notch (6) is formed in one side of the pump body (3), one end of the output shaft (21) penetrates through the notch (6) to extend into the pump body (3) and is provided with the impeller, and a height adjusting assembly (4) is arranged between the bottom of the pump body (3) and the base (1);

the mounting assembly (5) comprises a pressure plate (51), the pressure plate (51) is sleeved on the output shaft (21), a bearing (52) is fixedly mounted between the pressure plate (51) and the output shaft (21), two first convex blocks (53) and two second convex blocks (54) are symmetrically and fixedly mounted on the side surface of the pressure plate (51), two first limited blocks (55) and two second limited blocks (58) are symmetrically and fixedly mounted on one side of the pump body (3), the first convex blocks (53) are inserted into the first limited blocks (55), the second convex blocks (54) are inserted into the second limited blocks (58), one side of the first limited blocks (55) is fixedly mounted with a first threaded cylinder (56), and a second bolt (57) is mounted on the first threaded cylinder (56) through threads.

2. The centrifugal pump with the adjustable gap between the impeller and the pump casing as claimed in claim 1, wherein a second threaded cylinder (59) is arranged on one side of each of the first limiting block (55) and the second limiting block (58), and a third bolt (510) is installed on the second threaded cylinder (59) through threads.

3. Centrifugal pump with adjustable impeller-pump casing clearance according to claim 1, characterized in that the pressure plate (51) is in contact with one side of the pump body (3) and a sealing gasket is arranged between the pressure plate (51) and the base (1).

4. The centrifugal pump with the adjustable gap between the impeller and the pump casing as claimed in claim 1, wherein the height adjusting assembly (4) comprises a bottom block (41), a threaded rod (42) is fixedly installed at the center of the bottom block (41), two fixing tubes (43) are fixedly installed at the top of the base (1), a transverse plate (45) is fixedly installed between the two fixing tubes (43), and the threaded rod (42) penetrates through the transverse plate (45) and is provided with a nut (46).

5. A centrifugal pump with adjustable impeller and pump shell clearance according to claim 4, characterized in that two bolts (47) are symmetrically arranged on the transverse plate (45), the bolts (47) are connected with the transverse plate (45) through threads, and the tops of the bolts (47) are inserted into the bottom block (41).

6. A centrifugal pump with adjustable impeller-pump casing gap according to claim 4, characterized in that two insertion rods (44) are symmetrically and fixedly installed at the bottom of the pump body (3), and the two insertion rods (44) are respectively inserted into the two fixed pipes (43).

7. The centrifugal pump with the adjustable gap between the impeller and the pump casing as recited in claim 2, wherein the two first limit blocks (55) and the two second limit blocks (58) are arranged at equal intervals, the two first limit blocks (55) are arranged on the same horizontal line, and the two second limit blocks (58) are arranged on the same vertical line.