CN211525174U

CN211525174U - Impeller assembly of guide type sewage pump

Info

Publication number: CN211525174U
Application number: CN202020045574.1U
Authority: CN
Inventors: 朱维富; 徐里林; 何尹; 龚星光
Original assignee: Zhejiang Fengmin Pump Co ltd
Current assignee: Zhejiang Fengmin Pump Co ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-09-18
Anticipated expiration: 2030-01-09

Abstract

The utility model discloses an impeller subassembly of guide formula dredge pump, it has cutting function, and whole adoption is closed, open integrated configuration, has and prevents leaking and efficient advantage, and its technical scheme main points are including the impeller, including upper cover plate, lower apron and connect a plurality of main blades between upper cover plate and lower apron, the central axle sleeve that is equipped with of upper cover plate, the central impeller choma that is equipped with of lower apron, main blade include inner and outer end, are equipped with the cutting knife on main blade's the inner, the utility model is suitable for a dredge pump technical field.

Description

Impeller assembly of guide type sewage pump

Technical Field

The utility model belongs to the technical field of the dredge pump, refer in particular to an impeller subassembly of guide formula dredge pump.

Background

The impeller is the essential element of dredge pump, installs on the pump shaft of dredge pump, and current impeller structure mainly includes following several kinds, the closed impeller: the blade type cleaning machine consists of blades, a front cover plate and a rear cover plate, and is suitable for conveying clean water, solution and other cleaning liquid which is low in viscosity and does not contain particles;

the front half-open type impeller consists of a rear cover plate and blades, and the rear half-open type impeller consists of a front cover plate and blades, is suitable for conveying clear water and liquid similar to the clear water, but has lower efficiency;

the open impeller is only provided with blades and blade reinforcing ribs, and is not provided with an impeller with a front cover plate and a rear cover plate, is used for conveying liquid with higher viscosity and slurry liquid, but has low efficiency;

therefore, the existing impeller structure is difficult to achieve the conditions of conveying sewage and ensuring high efficiency, and when the existing impeller structure is particularly important, dirt in the sewage is easy to wind and block the impeller when the existing impeller structure is used for conveying the sewage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an impeller subassembly of guide formula dredge pump, it has cutting function, and wholly adopts close, open integrated configuration, has and prevents leaking just efficient advantage.

The purpose of the utility model is realized like this: an impeller subassembly of guide formula dredge pump, includes the impeller, its characterized in that: the impeller comprises an upper cover plate, a lower cover plate and a plurality of main blades connected between the upper cover plate and the lower cover plate, wherein a shaft sleeve is arranged in the center of the upper cover plate, an impeller opening ring is arranged in the center of the lower cover plate, the main blades comprise inner ends and outer ends, and cutting knives are arranged on the inner ends of the main blades.

The utility model discloses further set up to: the width of the cutting knife is smaller than that of the main blade, a side cutting edge is formed at the inner end of the main blade, and the side cutting edge is axially aligned with the inner wall of the impeller opening ring.

The utility model discloses further set up to: the lower surface of the lower cover plate is provided with a plurality of lower blades.

The utility model discloses further set up to: and the upper cover plate is also provided with a reinforcing ring connected with the shaft sleeve.

The utility model discloses further set up to: the number of the main blades is three, and the number of the cutting knives is also three.

The utility model discloses further set up to: the upper cover plate, the lower cover plate, the main blade and the lower blade are all made of stainless steel.

The utility model discloses further set up to: the impeller is characterized by further comprising a pump bottom cover, a water through hole is formed in the center of the pump bottom cover, and a guide block arranged in the impeller opening ring is arranged on an upper end opening of the water through hole.

The utility model discloses further set up to: the pump bottom cover is also provided with a mouth ring groove which is arranged around the water passing hole and is matched with the impeller mouth ring, and the inner wall of the water passing hole is provided with a sand leakage mouth communicated with the mouth ring groove.

The utility model discloses further set up to: the periphery of the upper surface of the pump bottom cover is also provided with a convex ring, and the inner wall of the convex ring is provided with a flow guide surface which is obliquely arranged.

By adopting the technical scheme, the method has the following advantages: the impeller adopts a mode of combining a closed impeller and an open impeller, makes up for the shortages, and not only can achieve the advantage of leakage prevention of the open impeller, but also can achieve the advantage of high efficiency of the closed impeller, thereby improving the efficiency of the whole machine;

through the cooperation use with the pump bottom cover for the guide block can cooperate cutting and guide with the cutting knife, and can play better prevention of leakage effect, further improves complete machine efficiency.

Drawings

FIG. 1 is a schematic view of the structure of the guided sewage pump of the present invention;

FIG. 2 is a schematic side view of the upper cover plate of the impeller of the present invention;

FIG. 3 is a schematic view of the structure of the lower cover plate side of the impeller of the present invention;

fig. 4 is an enlarged schematic structural view of the impeller of fig. 1 in the present invention;

FIG. 5 is a schematic structural view of a bottom cover of the pump of the present invention;

the reference numbers in the figures are: 1. an upper cover plate; 2. a lower cover plate; 3. a main blade; 4. a shaft sleeve; 5. an impeller eye ring; 6. a cutting knife; 7. cutting edges; 8. a lower blade; 10. a reinforcement ring; 11. water passing holes; 12. a guide block; 13. a mouth ring groove; 14. a sand leakage opening; 15. a convex ring; 16. a flow guide surface; 100. an impeller; 200. a pump bottom cover.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1 to 5:

an impeller assembly of a guide type sewage pump comprises an impeller 100, and is characterized in that: including upper cover plate 1, lower cover plate 2 and connect a plurality of main blades 3 between upper cover plate 1 and lower cover plate 2, be equipped with axle sleeve 4 in the center of upper cover plate 1, be equipped with impeller choma 5 in the center of lower cover plate 2, main blade 3 includes inner and outer end, is equipped with cutting knife 6 on the inner of main blade 3.

Impeller main part adopts closed structure, increases the impeller lift, and axle sleeve 4 is used for being connected with the pump shaft, and cutting knife 6 is just right with impeller choma 5, and when the filth was advanced by impeller choma 5, cutting knife 6 played the cutting effect to the filth for in the filth got into the impeller runner smoothly, prevent that blocking phenomenon from taking place.

The width D of the cutting knife 6 is smaller than the width D of the main blade 3, the inner end of the main blade 3 forms a side cutting edge 7, and the side cutting edge 7 is axially aligned with the inner wall of the impeller opening ring 5.

Through the structure, the inner end of the main blade 3 can also play a role in cutting, and the cutting capacity is improved.

The lower surface of the lower cover plate 2 is provided with a plurality of lower blades 8, the lower blades 8 generate outward centrifugal water flow when rotating, the lower end of the impeller can be prevented from leaking, and the lift of the water pump can be improved.

The upper cover plate 1 is further provided with a reinforcing ring 10 connected with the shaft sleeve 4, the reinforcing ring 10 is used for improving the connection strength between the shaft sleeve 4 and the upper cover plate 1, and the reinforcing ring, the shaft sleeve 4 and the upper cover plate 1 can be fixed through welding.

The number of the main blades 3 is three, the number of the cutting knives 6 is also three, and the most preferable number is mentioned above.

The upper cover plate 1, the lower cover plate 2, the main blades 3 and the lower blades 8 are all made of stainless steel materials, and can be fixed by welding, so that the manufacturing cost is low, and the corrosion is not easy to occur.

The impeller cutting machine further comprises a pump bottom cover 200, the pump bottom cover can be matched with an impeller for use, a water through hole 11 is formed in the center of the pump bottom cover, a guide block 12 arranged in the impeller opening ring 5 is arranged on an upper end opening of the water through hole 11, a guide surface which is obliquely arranged is arranged on one side of the guide block 12, and cutting surfaces are arranged on the other side and the top surface of the guide block 12; the guide surface plays a role in quickly guiding sewage and dirt so that the sewage and the dirt quickly enter the impeller.

Still be equipped with on the pump end cover around crossing the water hole 11 setting and with the mouth ring groove 13 of 5 adaptations of impeller choma, mouth ring groove 13 is used for cooperating with 5 installation of impeller choma, to impeller choma 5 and cross the effect that plays the leak protection between the water hole 11, the lift and the efficiency of improvement pump, cross and be equipped with the sand leakage mouth 14 with mouthful ring groove 13 intercommunication on the inner wall in water hole 11, the volume of seting up of sand leakage mouth 14 is less relatively, can be convenient for the interior silt impurity of pump head downwards discharge under the circumstances that does not influence to leak, avoid producing card husky phenomenon.

The outer periphery of the upper surface of the pump bottom cover is also provided with a convex ring 15, the inner wall of the convex ring 15 is provided with a flow guide surface 16 which is obliquely arranged, the pump bottom cover is arranged at the bottom of the pump head, and the convex ring 15 is used for being clamped with the pump head to increase the stability; when the impeller rotates, outward centrifugal water flow can be formed on the upper surface of the pump bottom cover, and sewage and dirt remained on the upper surface of the pump bottom cover are conveyed into the pump head through the flow guide surface 16.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An impeller subassembly of guide formula dredge pump, includes the impeller, its characterized in that: the novel impeller structure comprises an upper cover plate (1), a lower cover plate (2) and a plurality of main blades (3) connected between the upper cover plate (1) and the lower cover plate (2), wherein a shaft sleeve (4) is arranged in the center of the upper cover plate (1), an impeller opening ring (5) is arranged in the center of the lower cover plate (2), the main blades (3) comprise inner ends and outer ends, and cutting knives (6) are arranged on the inner ends of the main blades (3).

2. An impeller assembly for a pilot sewage pump according to claim 1 wherein: the width of the cutting knife (6) is smaller than that of the main blade (3), a side cutting edge (7) is formed at the inner end of the main blade, and the side cutting edge (7) is axially aligned with the inner wall of the impeller opening ring (5).

3. An impeller assembly for a pilot sewage pump according to claim 1 wherein: the lower surface of the lower cover plate (2) is provided with a plurality of lower blades (8).

4. An impeller assembly for a pilot sewage pump according to claim 1 wherein: the upper cover plate (1) is also provided with a reinforcing ring (10) connected with the shaft sleeve (4).

5. An impeller assembly for a pilot sewage pump according to claim 1 wherein: the number of the main blades (3) is three, and the number of the cutting knives (6) is also three.

6. An impeller assembly for a pilot sewage pump according to claim 4 wherein: the upper cover plate (1), the lower cover plate (2), the main blades (3) and the lower blades (8) are all made of stainless steel.

7. An impeller assembly for a pilot sewage pump according to claim 1 wherein: the impeller mouth ring structure further comprises a pump bottom cover, wherein a water through hole (11) is formed in the center of the pump bottom cover, and a guide block (12) arranged in the impeller mouth ring (5) is arranged on an upper end opening of the water through hole (11).

8. An impeller assembly for a pilot sewage pump according to claim 7 wherein: still be equipped with on the pump bottom cover around water hole (11) set up and with impeller choma (5) adaptation choma recess (13), be equipped with on the inner wall of water hole (11) with choma recess (13) intercommunication leak husky mouth (14).

9. An impeller assembly for a pilot sewage pump according to claim 7 wherein: the periphery of the upper surface of the pump bottom cover is also provided with a convex ring (15), and the inner wall of the convex ring (15) is provided with a flow guide surface (16) which is obliquely arranged.