CN212225527U

CN212225527U - Axial split centrifugal pump

Info

Publication number: CN212225527U
Application number: CN202020564009.6U
Authority: CN
Inventors: 王兆星; 王麟
Original assignee: Dalian Lushun Hongda Chemical Equipment Co ltd
Current assignee: Dalian Lushun Hongda Chemical Equipment Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-12-25
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses an axial subdivision formula centrifugal pump, including body, bearing box and inner ring spacer bush, the bearing box is all installed to the both sides of body, and the inside of bearing box all is provided with rolling bearing, the inside axostylus axostyle that transversely is provided with of body between the rolling bearing, and the intermediate position department on axostylus axostyle surface installs the blade, the inside impeller choma that is provided with of body in the blade outside, and the inside pump body choma that is provided with in the body in the impeller choma outside, the bearing box is kept away from one side of body and is all installed bearing gland, and the bearing box top all installs the bearing box upper cover on the top of bearing box, and the oil tank lower cover is all installed to. The utility model discloses an at inside oil slinger and the inner ring spacer that sets up of bearing box, utilize the frictional force between oil slinger and the inner ring spacer to make the oil slinger rotate, and then supply the inside lubricating oil of bearing box between axostylus axostyle both ends and the rolling bearing, improve the lubricated effect of device.

Description

Axial split centrifugal pump

Technical Field

The utility model relates to a fluid conveying machinery technical field specifically is an axial subdivision formula centrifugal pump.

Background

The axial split centrifugal pump mainly conveys various clean or neutral or corrosive media containing particles, and has the advantages of wide performance range, uniform flow, simple structure, reliable operation, convenient maintenance and the like, so the excellent performance of the axial split centrifugal pump is widely applied to industrial processes, pipeline pressurization, middle and short distance conveying, water supply, water treatment and the like, and the traditional axial split centrifugal pump can basically meet the use requirements of people, but still has certain problems, and the specific problems are as follows:

1. the traditional axial split centrifugal pump has the disadvantages of low centrifugal efficiency and high cavitation allowance, so that the practicability is low.

2. In a traditional axial split centrifugal pump, a bearing body in a pump body structure is lubricated by grease, so that the heat dissipation effect of the bearing is poor, and the use of the pump is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an axial subdivision formula centrifugal pump to solve the lower and poor problem of bearing radiating effect of the centrifugal efficiency who provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an axial subdivision formula centrifugal pump, includes body, bearing box and inner ring spacer bush, the bearing box is all installed to the both sides of body, and the inside of bearing box all is provided with rolling bearing, the inside axostylus axostyle that transversely is provided with between the rolling bearing, and the intermediate position department on axostylus axostyle surface installs the blade, the axostylus axostyle surface of blade both sides all is provided with the outer loop spacer bush, and the axostylus axostyle surface of outer loop spacer bush both sides all installs the axle sleeve, the inside impeller choma that is provided with of body in the blade outside, and the inside pump body choma that is provided with in the impeller choma outside, bearing gland is all installed to one side that the body was kept away from to the bearing box, and bearing box's top all installs the bearing box upper cover, oil thing separator.

Preferably, the bearing box at the two ends of the shaft rod is internally provided with an inner ring spacer, and one side of the inner part of the inner ring spacer is provided with an oil slinger.

Preferably, the dustproof plate is installed on one side, close to the body, of the bearing box body, and the sealing gasket is arranged on the inner wall of the dustproof plate.

Preferably, a packing gland is installed inside the body on one side of the shaft sleeve, and sealing materials are arranged inside the packing gland.

Preferably, the surface of the shaft lever on one side of the packing gland is provided with an O-shaped sealing ring, and the inner diameter of the O-shaped sealing ring is equal to the diameter of the cross section of the shaft lever.

Preferably, the body on one side of the O-shaped sealing ring is internally provided with water sealing rings which are symmetrically distributed around the vertical central axis of the blade.

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

(1) the pump body opening ring and the impeller opening ring are arranged in the body, so that the blades are provided with closed runners and are provided with replaceable wear-resisting rings, the wear-resisting rings of the shell are used for isolating the blades from shell parts, and meanwhile, the optimal geometric dimension of the blades ensures the characteristics of high efficiency, low cavitation allowance, large operation range, stable rotation, small pressure fluctuation and the like of the pump, the practicability of the device is improved, and if the pipeline system is reasonable in layout, the double-suction impeller can ensure the emergency hydraulic and the axial thrust, so that the working efficiency of the device is further improved;

(2) meanwhile, the oil slinger and the inner ring spacer sleeve are arranged inside the bearing box body, in the rotating process of the shaft rod, the rotating bearing and the shaft rod are lubricated and cooled due to the fact that lubricating oil is filled in the bearing box body, the oil slinger rotates through friction force between the oil slinger and the inner ring spacer sleeve, and then the lubricating oil inside the bearing box body is supplied between the two ends of the shaft rod and the rotating bearing, the lubricating effect of the device is improved, and normal operation of the device is guaranteed.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic front view of the structure of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. an oil separator; 2. a blade; 3. a body; 4. an outer ring spacer; 5. an upper cover of the bearing box; 6. a rotating bearing; 7. a bearing gland; 8. an oil slinger; 9. a lower cover of the oil tank; 10. a bearing housing; 11. a pump body orifice ring; 12. an impeller eye ring; 13. an inner ring spacer bush; 14. a shaft lever; 15. a dust-proof disc; 16. a packing gland; 17. a shaft sleeve; 18. sealing materials; 19. a water seal ring; 20. and an O-shaped sealing ring.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: an axial split centrifugal pump comprises a body 3, bearing box bodies 10 and an inner ring spacer 13, wherein the bearing box bodies 10 are respectively arranged at two sides of the body 3, rotating bearings 6 are respectively arranged in the bearing box bodies 10, and a shaft lever 14 is transversely arranged in the body 3 between the rotating bearings 6;

inner ring spacers 13 are arranged in the bearing box bodies 10 at the two ends of the shaft rod 14, and oil slingers 8 are arranged on one sides in the inner ring spacers 13;

the oil slinger 8 is rotated by the friction force between the oil slinger 8 and the inner ring spacer 13, so that the lubricating oil in the bearing box body 10 is supplied between the two ends of the shaft lever 14 and the rotating bearing 6, the lubricating effect of the device is improved, the normal operation of the device is ensured, and the oil slinger 8 is provided with an eccentric hole, so that the oil supply effect of the device is further improved;

blades 2 are arranged in the middle of the surfaces of the shaft levers 14, outer ring spacers 4 are arranged on the surfaces of the shaft levers 14 on the two sides of the blades 2, and shaft sleeves 17 are arranged on the surfaces of the shaft levers 14 on the two sides of the outer ring spacers 4;

a packing gland 16 is arranged in the body 3 at one side of the shaft sleeve 17, and sealing materials 18 are arranged in the packing gland 16;

by opening and closing the packing gland 16, the sealing material 18 can be conveniently replaced and added, the sealing performance between the body 3 and the shaft rod 14 is guaranteed, and the service life of the device is prolonged;

the surface of the shaft lever 14 at one side of the packing gland 16 is provided with an O-shaped sealing ring 20, and the inner diameter of the O-shaped sealing ring 20 is equal to the diameter of the cross section of the shaft lever 14;

parts of the body part can be separated by utilizing the O-shaped sealing ring 20, so that the maintenance is convenient, the whole rotor part can be taken out for maintenance under the condition that pipelines and pipeline valves are not required to be detached, and the maintenance convenience of the device is improved;

the water seal rings 19 are arranged in the body 3 on one side of the O-shaped seal ring 20, and the water seal rings 19 are symmetrically distributed around the vertical middle axis of the blade 2;

by arranging the water seal ring 19, the water-resisting property of the device can be improved, and the phenomenon that water vapor enters the inside of the device to corrode parts, so that the device cannot be used is prevented, and the maintenance cost is increased;

an impeller opening ring 12 is arranged inside the body 3 outside the blades 2, and a pump body opening ring 11 is arranged inside the body 3 outside the impeller opening ring 12;

a dustproof disc 15 is arranged on one side of the bearing box body 10 close to the body 3, and sealing gaskets are arranged on the inner wall of the dustproof disc 15;

by arranging the dustproof disc 15, external dust can be prevented from entering the bearing box body 10 or the body 3 to influence the normal work of the device, so that the product quality is guaranteed;

bearing gland 7 is all installed to one side that body 3 was kept away from to bearing box 10, and bearing box upper cover 5 is all installed on the top of bearing box 10, and oil thing separator 1 is all installed to one side on bearing box 10 top, and oil tank lower cover 9 is all installed to the bottom of bearing box 10.

The working principle is as follows: when the device is used, a power supply is firstly switched on, after the device is started, the shaft lever 14 rotates to drive the blades 2 to rotate, so that fluid does circular motion along with the blades 2, and is thrown out from the centers of the blades 2 to the outer periphery under the action of centrifugal force, the fluid obtains pressure energy and speed energy from the blades 2, when the fluid flows through the volute to the liquid discharge port, part of the speed energy is converted into static pressure energy, when the fluid is thrown out from the blades 2, the central parts of the blades 2 form low-pressure areas, pressure difference is formed between the low-pressure areas and the pressure of the liquid suction surface, and the fluid is continuously sucked and discharged out of the device at a certain pressure;

the pump body opening ring 11 and the impeller opening ring 12 are arranged in the body 3, so that the vanes 2 of the device are provided with closed runners, and are provided with replaceable wear-resisting rings, and the replaceable wear-resisting rings are separated from shell parts by the shell wear-resisting rings, so that the characteristics of high efficiency, low cavitation allowance, large operation range, stable rotation, small pressure fluctuation and the like of the pump are ensured, and the practicability of the device is improved;

meanwhile, in the normal working process of the device, the bearing box body 10 is filled with lubricating oil to lubricate and dissipate heat of the rotating bearing 6 and the shaft rod 14, the oil slinger 8 is rotated by the friction force between the oil slinger 8 and the inner ring spacer 13, and then the lubricating oil in the bearing box body 10 is supplied between the two ends of the shaft rod 14 and the rotating bearing 6, so that the lubricating effect of the device is improved, and the normal operation of the device is ensured.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an axial subdivision formula centrifugal pump, includes body (3), bearing box (10) and inner ring spacer bush (13), its characterized in that: bearing box bodies (10) are installed on two sides of the body (3), rotating bearings (6) are arranged inside the bearing box bodies (10), shaft rods (14) are transversely arranged inside the body (3) between the rotating bearings (6), blades (2) are installed in the middle positions of the surfaces of the shaft rods (14), outer ring spacers (4) are arranged on the surfaces of the shaft rods (14) on the two sides of the blades (2), shaft sleeves (17) are installed on the surfaces of the shaft rods (14) on the two sides of the outer ring spacers (4), impeller mouth rings (12) are arranged inside the body (3) on the outer sides of the blades (2), pump body mouth rings (11) are arranged inside the body (3) on the outer sides of the impeller mouth rings (12), bearing glands (7) are installed on one sides, far away from the body (3), of the bearing box bodies (10) are provided with bearing box upper covers (5), the oil-material separator (1) is installed on one side of the top end of the bearing box body (10), and the lower cover (9) of the oil tank is installed at the bottom end of the bearing box body (10).

2. An axial split centrifugal pump according to claim 1, wherein: inner ring spacer bushes (13) are arranged inside the bearing box bodies (10) at the two ends of the shaft rod (14), and oil slingers (8) are arranged on one sides inside the inner ring spacer bushes (13).

3. An axial split centrifugal pump according to claim 1, wherein: one side of the bearing box body (10) close to the body (3) is provided with a dustproof disc (15), and the inner wall of the dustproof disc (15) is provided with a sealing gasket.

4. An axial split centrifugal pump according to claim 1, wherein: the packing gland (16) is installed inside the body (3) on one side of the shaft sleeve (17), and sealing materials (18) are arranged inside the packing gland (16).

5. An axial split centrifugal pump according to claim 4, wherein: the surface of the shaft lever (14) at one side of the packing gland (16) is provided with an O-shaped sealing ring (20), and the inner diameter of the O-shaped sealing ring (20) is equal to the diameter of the cross section of the shaft lever (14).

6. An axial split centrifugal pump according to claim 5, wherein: and water seal rings (19) are arranged inside the body (3) on one side of the O-shaped sealing ring (20), and the water seal rings (19) are symmetrically distributed around the vertical central axis of the blade (2).