CN212867930U

CN212867930U - SH type single-stage double-suction centrifugal clean water pump

Info

Publication number: CN212867930U
Application number: CN202021494081.2U
Authority: CN
Inventors: 钱通云
Original assignee: Jiangsu Julang Pumps And Valves Co ltd
Current assignee: Jiangsu Julang Pumps And Valves Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-04-02
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a centrifugal clarified water pump of SH type single-stage double suction relates to clarified water pump technical field, including the pump body, pump cover and bearing body, the pump cover is installed through the bolt to the upper surface of the pump body, the pump body has the axle with the mid-mounting of pump cover, the middle part of axle is seted up flutedly, the impeller is installed through the inside key that passes through of recess in the middle part of axle, the both sides of impeller all are provided with double suction sealing ring, two all be provided with the axle sleeve between double suction sealing ring and the axle, two the equal fixedly connected with machine of one end surface that the impeller was kept away from to the axle sleeve seals the equal fixedly connected with machine in the one end outside that the impeller seals and seals gland, two machine seals the gland and all through stud difference fixed mounting in the left and right sides of pump cover, two it is connected with the axle sleeve. The utility model discloses during the maintenance, only need uncover the pump cover, convenient dismantlement, long service life.

Description

SH type single-stage double-suction centrifugal clean water pump

Technical Field

The utility model relates to a clarified water pump technical field specifically is a centrifugal clarified water pump of SH type single-stage double suction.

Background

The clear water pump is mainly used for conveying clear water and liquid with physical and chemical properties similar to water, the highest temperature of the liquid generally does not exceed 80 ℃, and the clear water pump is suitable for water supply and drainage of factories, mines, cities and power stations, flood drainage and irrigation of farmlands and various hydraulic engineering. The existing clean water pump is inconvenient to disassemble and short in service life, and a novel SH type single-stage double-suction centrifugal clean water pump is provided according to market requirements.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a centrifugal clarified water pump of SH type single-stage double suction has solved the inconvenient dismantlement of the current clarified water pump that proposes in the above-mentioned background art, the not long problem of life.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

an SH type single-stage double-suction centrifugal clean water pump comprises a pump body, a pump cover and a bearing body, wherein the pump cover is installed on the upper surface of the pump body through bolts, a shaft is installed in the middle of the pump body and the pump cover, a groove is formed in the middle of the shaft, an impeller is installed in the middle of the shaft through the groove, double-suction sealing rings are arranged on two sides of the impeller, shaft sleeves are arranged between the double-suction sealing rings and the shaft, a mechanical seal is fixedly connected to the outer surface of one end, away from the impeller, of each shaft sleeve, a mechanical seal pressing cover is fixedly connected to the outer side of one end, away from the impeller, of each mechanical seal pressing cover, the two mechanical seal pressing covers are respectively and fixedly installed on the left side and the right side of the pump cover through double-headed bolts, shaft sleeve end covers are rotatably connected between the two mechanical seal pressing, the impeller pump is characterized in that bearing end covers are fixedly mounted on the left side wall and the right side wall of the pump body through fasteners, one side, far away from the impeller, of each bearing end cover is fixedly connected with a bearing body end cover, the inside of each bearing body end cover is rotatably connected with a bearing, each bearing is rotatably connected with a shaft, each bearing body is formed by the corresponding bearing end cover, the corresponding bearing body end cover and the corresponding bearing, and the left end of each shaft is located on the left side of the corresponding bearing body and is fixedly connected with a.

Furthermore, the shaft sleeve is fixedly connected with the inner ring of the double-suction sealing ring, the outer ring of the double-suction sealing ring is clamped inside the pump body and the pump cover, and a gap is reserved between the double-suction sealing ring and the impeller.

Further, the mechanical seal is of an annular structure, and the outer surface of the mechanical seal is in close contact with the pump body and the pump cover.

Furthermore, two shaft sleeve end covers are in threaded connection with the shaft, and are in running fit with the shaft sleeve.

Furthermore, the bearing body is not in contact with the pump cover, and the coupling part is connected with an external motor.

Further, the base is installed to the bottom of the pump body, the screw hole has been seted up on the base, water inlet and delivery port have been seted up respectively to both sides around the pump body.

Further, the key is mounted in a groove in the middle of the shaft.

(III) advantageous effects

The utility model provides a centrifugal clarified water pump of SH type single-stage double suction possesses following beneficial effect:

(1) the SH-type single-stage double-suction centrifugal clear water pump is divided into a pump body and a pump cover by horizontally opening the pump case, the water inlet and the water outlet of the pump are both arranged on the pump body below the axial line of the water pump and are in the horizontal direction vertical to the axial line, and when the pump is overhauled, the water inlet pipeline, the water outlet pipeline and the motor do not need to be disassembled, and only the pump cover needs to be uncovered, so that parts can be conveniently overhauled and replaced.

(2) The SH type single-stage double-suction centrifugal clean water pump is supported by two single-row radial ball bearings through a shaft, and the bearings are arranged in bearing bodies at two ends of a pump body and are lubricated by grease. Compared with other clean water pumps, the shaft diameter and the bearing are increased, the shaft and the bearing are more reliable, the operation is more stable, and the service life is long.

Drawings

Fig. 1 is a schematic plane structure diagram of the SH-type single-stage double-suction centrifugal clean water pump of the present invention;

fig. 2 is a schematic plan view of the bearing structure of the SH-type single-stage double-suction centrifugal clean water pump.

In the figure: 1. a pump body; 2. a pump cover; 3. a shaft; 4. an impeller; 5. a double suction seal ring; 6. a key; 7. a shaft sleeve; 8. machine sealing; 9. a mechanical seal gland; 10. a shaft sleeve end cover; 11. a stud bolt; 12. a bearing end cap; 13. a bearing body end cap; 14. a bearing; 15. a bearing body; 16. a coupling component.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution:

an SH type single-stage double-suction centrifugal clean water pump comprises a pump body 1, a pump cover 2 and a bearing body 15, wherein a base is installed at the bottom of the pump body 1, screw holes are formed in the base, a water inlet and a water outlet are respectively formed in the front side and the rear side of the pump body 1, the pump cover 2 is installed on the upper surface of the pump body 1 through bolts, the pump body 1 and the pump cover 2 are divided by horizontally opening the pump cover, the water inlet and the water outlet of the pump are both arranged on the pump body 1 below the axial lead of the water pump and are in a horizontal direction vertical to the axial lead, the water inlet pipeline, the water outlet pipeline and the motor are not required to be disassembled during maintenance, the maintenance and the part replacement can be conveniently carried out only by opening the pump cover 2, a shaft 3 is installed in the middle parts of the pump body 1 and the pump cover 2, a groove is formed in the middle part of the shaft 3, an impeller, shaft sleeves 7 are arranged between the two double-suction sealing rings 5 and the shaft 3, the shaft sleeves 7 are fixedly connected with the inner rings of the double-suction sealing rings 5, the outer rings of the double-suction sealing rings 5 are clamped inside the pump body 1 and the pump cover 2, a gap is reserved between the double-suction sealing rings 5 and the impeller 4, the outer surfaces of the ends, far away from the impeller 4, of the two shaft sleeves 7 are fixedly connected with mechanical seals 8, the mechanical seals 8 are of annular structures, the outer surfaces of the mechanical seals 8 are in tight contact with the pump body 1 and the pump cover 2, the outer sides of the ends, far away from the impeller 4, of the two mechanical seals 8 are fixedly connected with mechanical seal glands 9, the two mechanical seal glands 9 are respectively and fixedly arranged on the left side and the right side of the pump cover 2 through double-headed bolts 11, shaft sleeve end covers 10 are respectively and rotatably connected between the two mechanical seal glands 9 and the shaft 3, the two shaft sleeve end covers 10 are both in threaded connection with the, all there is bearing cap 12 on the left and right sides wall of the pump body 1 through fastener fixed mounting, one side fixedly connected with bearing body end cover 13 of impeller 4 is kept away from to bearing cap 12, bearing body end cover 13 internal rotation is connected with bearing 14, bearing 14 rotates with axle 3 to be connected, bearing cap 12, bearing body end cover 13 and bearing 14 constitute bearing body 15, bearing body 15 does not contact with pump cover 2, by two single-row radial ball bearing 14 supports through axle 3, bearing 14 adorns in the bearing body 15 at pump body 1 both ends, with the grease lubrication. Compared with other clean water pumps, the shaft diameter and the bearing 14 are increased, the shaft 3 and the bearing 14 are more reliable, the operation is more stable, the service life is long, the left end of the shaft 3 is fixedly connected with the coupling part 16 on the left side of the bearing body 15, and the coupling part 16 is connected with an external motor.

The SH-type single-stage double-suction centrifugal clean water pump is characterized in that before the SH-type single-stage double-suction centrifugal clean water pump is used, the clean water pump is fixedly arranged at a use place through a screw hole on a base, then an external motor is connected through a coupling part 16, a water inlet and a water outlet which are positioned at the front side and the rear side of a pump body 1 are connected, then the motor is turned on, the motor drives a shaft 3 through the coupling part 16 to drive an impeller 4 to rotate anticlockwise, when the impeller 4 rotates anticlockwise, suction is applied to the water inlet, water in the water inlet flows into the clean water pump, at the moment, because of the sealing operation of a mechanical seal 8, a mechanical seal cover 9 and a shaft sleeve end cover 10, water in the clean water pump cannot flow into the outside from the inside to cause danger, then flows into the water outlet through the pressure of the impeller 4, the water pumping work of the clean water pump is finished, when the clean water, the parts are directly maintained, and the maintenance process is convenient and fast.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The SH type single-stage double-suction centrifugal clear water pump comprises a pump body (1), a pump cover (2) and a bearing body (15), and is characterized in that the pump cover (2) is installed on the upper surface of the pump body (1) through bolts, a shaft (3) is installed in the middle of the pump body (1) and the pump cover (2), a groove is formed in the middle of the shaft (3), an impeller (4) is installed in the middle of the shaft (3) through the groove, double-suction sealing rings (5) are arranged on two sides of the impeller (4), shaft sleeves (7) are arranged between the double-suction sealing rings (5) and the shaft (3), machine seals (8) are fixedly connected to the outer surfaces of the ends, far away from the impeller (4), of the two shaft sleeves (7), and machine seal covers (9) are fixedly connected to the outer sides of the ends, far away from the impeller (4), of the two machine seals (8, the two mechanical seal gland covers (9) are respectively and fixedly arranged at the left side and the right side of the pump cover (2) through stud bolts (11), shaft sleeve end covers (10) are respectively and rotatably connected between the two mechanical seal gland covers (9) and the shaft (3), one sides of the two shaft sleeve end covers (10) close to the impeller (4) are contacted with one sides of the shaft sleeves (7) far away from the impeller (4), bearing end covers (12) are fixedly arranged on the left side wall and the right side wall of the pump body (1) through fasteners, one side of the bearing end cover (12) far away from the impeller (4) is fixedly connected with a bearing body end cover (13), the bearing (14) is rotatably connected inside the bearing body end cover (13), the bearing (14) is rotatably connected with the shaft (3), the bearing end cover (12), the bearing body end cover (13) and the bearing (14) form a bearing body (15), the left end of the shaft (3) is positioned at the left side of the bearing body (15) and is fixedly connected with a coupling component (16); the water inlet and the water outlet of the pump are both arranged on the pump body (1) below the axial line of the water pump and are vertical to the axial line and in the horizontal direction; the bearing (14) is a single-row radial ball bearing.

2. An SH type single-stage double suction centrifugal clean water pump according to claim 1,

the pump is characterized in that the shaft sleeve (7) is fixedly connected with the inner ring of the double-suction sealing ring (5), the outer ring of the double-suction sealing ring (5) is clamped inside the pump body (1) and the pump cover (2), and a gap is reserved between the double-suction sealing ring (5) and the impeller (4).

3. An SH type single-stage double suction centrifugal clean water pump according to claim 1,

the mechanical seal (8) is of an annular structure, and the outer surface of the mechanical seal (8) is in close contact with the pump body (1) and the pump cover (2).

4. An SH type single-stage double suction centrifugal clean water pump according to claim 1,

and the two shaft sleeve end covers (10) are in threaded connection with the shaft (3), and the shaft sleeve end covers (10) are in running fit with the shaft sleeve (7).

5. An SH type single-stage double suction centrifugal clean water pump according to claim 1,

the bearing body (15) is not in contact with the pump cover (2), and the coupling part (16) is connected with an external motor.

6. An SH type single-stage double suction centrifugal clean water pump according to claim 1,

the base is installed to the bottom of the pump body (1), the screw hole has been seted up on the base, water inlet and delivery port have been seted up respectively to both sides around the pump body (1).

7. An SH type single-stage double suction centrifugal clean water pump according to claim 1,

the key (6) is arranged in a groove in the middle of the shaft (3).