CN211573857U - Impeller assembly of high-speed deep-well pump - Google Patents

Abstract

The utility model relates to an impeller component of a high-speed deep well pump, wherein two adjacent impeller components are superposed together, and the impeller component comprises an impeller and a guide vane; the impeller is arranged in the guide vane, and a support ring is arranged on the lower end face of the impeller; the stator includes the casing, sets up the guide plate in the casing and set up a plurality of water conservancy diversion pieces that are involute type heliciform setting on the guide plate, the up end of casing is provided with the mounting panel, the middle part of mounting panel is provided with the wear pad that is used for supplying the lock ring of impeller to support to lean on, the surface of wear pad flushes with the surface of mounting panel, the outer edge of mounting panel is provided with the protruding edge of annular. The utility model discloses the effect that life is high has.

Description

Impeller assembly of high-speed deep-well pump

Technical Field

The utility model belongs to the technical field of the technique of impeller subassembly and specifically relates to an impeller subassembly of high-speed deep-well pump is related to.

Background

The deep well pump is one kind of water pump, and its biggest characteristic is that the motor and the pump are made together, and it is a machine sinking into the well bore and lifting water, and is widely used in mine emergency, construction drainage, agricultural irrigation and drainage, industrial water circulation, even rescue and relief work and the deeper pumping and lifting water of ground water level, etc.

Chinese patent with publication number CN207830208U discloses an impeller assembly for a deep well pump, which comprises a casing, and a guide vane and an impeller both disposed in the casing, wherein the lower end of the casing is connected with an annular bottom plate, an annular convex edge is disposed on the inner wall of the central hole of the bottom plate, a convex supporting portion is disposed on the lower end surface of the impeller, and when the impeller is mounted, the lower end surface of the supporting portion is abutted against the upper end surface of the annular convex edge.

The water in the well is pumped up after the motor works, the inner impeller is driven by the main shaft to rotate at a high speed, the water in the water rotates along with the impeller, the water flies away from the impeller to be ejected outwards under the action of centrifugal force, the speed of the ejected water is gradually reduced after the ejected water passes through the guide vanes above the impeller, the pressure of the ejected water is gradually increased, the ejected water flows upwards in the guide vanes, at the moment, a vacuum low-pressure area without air and water is formed at the center of the impeller due to the fact that the water is thrown to the periphery, the water is pumped up from the center of the impeller under the action of atmospheric pressure, and then the water flows out of the discharge pipe at the outlet of the pump.

However, when the water body contains silt particles, the silt particles are sucked up from the center of the impeller along with the water body, and the silt particles are partially accumulated at the annular convex edge, so that under the high-speed rotation of the impeller, the supporting part of the impeller abutted against the annular convex edge is easily worn and damaged by the silt particles, the service life of an impeller assembly is influenced, and a certain improvement is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an impeller subassembly of high-speed deep-well pump has the characteristics that life is high.

The above technical object of the present invention can be achieved by the following technical solutions.

An impeller assembly of a high-speed deep well pump, two adjacent impeller assemblies are stacked together, the impeller assembly includes impeller and guide vane; the impeller is arranged in the guide vane, and a support ring is arranged on the lower end face of the impeller; the stator includes the casing, sets up the guide plate in the casing and set up a plurality of water conservancy diversion pieces that are involute type heliciform setting on the guide plate, the up end of casing is provided with the mounting panel, the middle part of mounting panel is provided with the wear pad that is used for supplying the lock ring of impeller to support to lean on, the surface of wear pad flushes with the surface of mounting panel, the outer edge of mounting panel is provided with the protruding edge of annular.

Through above-mentioned technical scheme, the mounting panel supports to lean on the contact with the lock ring of impeller, and when the impeller rotated at a high speed, the impeller was thrown away the water and is entered into the casing, contained silt particle in the water that the impeller was thrown away, because the surface of wear pad and mounting panel flushes, consequently, can not gather silt particle between wear pad and the lock ring, avoided causing the wearing and tearing destruction of wear pad and lock ring. And at this moment, silt particle gets rid of along with the water vortex in the casing inner chamber and gathers in the protruding edge department of annular, avoids silt to gather in the junction of mounting panel and impeller on the one hand, causes the wearing and tearing of impeller and mounting panel, and on the other hand can block silt through the setting on the protruding edge of annular, reaches the purpose of protection casing, has improved the life of impeller subassembly.

Preferably, the impeller comprises an upper blade plate, a lower blade plate and a plurality of blades, a water through hole is formed in the center of the lower blade plate, and the support ring is arranged around the edge of the water through hole; the blades are spirally arranged on the lower blade plate in an involute shape, a water passage is formed between every two adjacent blades, one end of the water passage is communicated with the water through hole, and the other end of the water passage is communicated with the outside; the upper blade plate covers the blades, and a hub is arranged at the center of the upper blade plate.

Through above-mentioned technical scheme, the lock ring sets up around the limbers, and the limbers setting is at the center of lower lamina, and the impeller is when high-speed rotatory from this, and the lock ring is contradicted with wear pad, can ensure that the lock ring rotation can not appear the eccentric condition.

Preferably, the axle sleeve extends towards two sides on the upper blade plate respectively, one end of the axle sleeve protrudes out of the surface of the upper blade plate, and the other end of the axle sleeve penetrates through the water through hole and is higher than the surface of the support ring.

Through above-mentioned technical scheme, the setting of wheel axle sleeve can improve the installation stability of impeller on the deep-well pump main shaft.

Preferably, the center of the guide plate is provided with a connecting hole, one end of each guide vane is bordered by the hole edge of the connecting hole, the other end of each guide vane is fixed with the inner wall of the shell, a guide channel is formed between every two adjacent guide vanes, and each guide channel on the guide plate is provided with a guide opening.

Through above-mentioned technical scheme, the impeller is ordered about high-speed rotation by the main shaft, and water wherein rotates along with the impeller, and the water can fly away from the impeller and outwards jet out under the effect of centrifugal force, and the speed slows down gradually behind the stator of impeller top that the water that jets out, and pressure increases gradually, then upward flow in the stator to conveniently enter into the water conservancy diversion passageway from the water conservancy diversion mouth.

Preferably, the diversion opening is located at the outer edge of the diversion plate.

Through above-mentioned technical scheme, the position that the water conservancy diversion mouth set up to make things convenient for the water to enter into the water conservancy diversion passageway from the casing.

Preferably, the mounting plate covers the plurality of guide vanes to close the top of the guide passage.

Through above-mentioned technical scheme, the top of water conservancy diversion passageway is sealed with the mounting panel to improve stator overall mounting structure's compactness.

Preferably, the mounting plate is fixedly embedded in the upper end surface of the housing.

Through above-mentioned technical scheme, the mounting panel adopts to inlay the mode of dress fixed, when the mounting panel damages, conveniently changes the mounting panel.

Preferably, a central hole is formed in the mounting plate at the central position, and the wear-resistant plate is embedded on the mounting plate around the central hole.

Through above-mentioned technical scheme, wear pad sets up around the centre bore, can make wear pad and lock ring relative and supply the lock ring to lean on.

Preferably, the wear-resistant plate is a ceramic wear-resistant plate.

Through the technical scheme, the ceramic wear-resistant sheet has the characteristics of wear resistance and rust resistance, and is long in service life.

To sum up, the utility model discloses a beneficial technological effect does:

this application is through the setting on the protruding edge of annular for silt granule gets rid of and gathers at the protruding edge department of annular along with the water vortex in the casing inner chamber, avoids silt to gather in the junction of mounting panel and impeller on the one hand, causes the wearing and tearing of impeller and mounting panel, and on the other hand passes through the setting on the protruding edge of annular, can block silt, reaches the purpose of protection casing, has improved the life of impeller subassembly.

Drawings

Fig. 1 is a schematic structural view of a high-speed deep well pump in the technical scheme of the utility model;

fig. 2 is a schematic structural diagram of a pump body in the technical scheme of the present invention;

fig. 3 is a schematic structural view of an impeller assembly in the technical solution of the present invention;

fig. 4 is a first schematic exploded view of an impeller assembly according to the present invention;

fig. 5 is a second schematic exploded view of an impeller assembly according to the present invention.

Reference numerals: 1. a pump body; 2. a motor; 3. a main shaft; 4. mounting a bracket; 5. a coupling; 6. a water inlet joint; 7. an impeller assembly; 71. an impeller; 711. a hub sleeve; 712. a wheel axle hole; 713. an upper leaf plate; 714. a blade; 715. a lower leaf plate; 716. a water through hole; 717. a support ring; 718. a water passage; 72. a guide vane; 721. a housing; 722. a baffle; 723. a flow deflector; 724. connecting holes; 725. a flow guide channel; 726. a flow guide port; 727. mounting a plate; 728. a central bore; 729. a wear resistant sheet; 730. an annular convex edge; 731. a ceramic ring; 732. a ceramic gasket; 8. a middle bracket; 9. an upper bracket; 10. and (5) discharging the water cap.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Combine fig. 1 and fig. 2 to show, the utility model provides an impeller subassembly of high-speed deep-well pump uses in high-speed deep-well pump, and high-speed deep-well pump includes the pump body 1, motor 2 and main shaft 3. The pump body 1 is the cylinder setting, is connected through installing support 4 between the motor 2 and the pump body 1 to make and form into the space of intaking between the motor 2 and the pump body 1, keep coaxial setting between the motor 2 and the pump body 1, main shaft 3 sets up in the pump body 1 and sets up along 1 axial direction of the pump body, and the output shaft of motor 2 passes through shaft coupling 5 and links to each other with main shaft 3, and from this, main shaft 3 can be at high-speed rotatory under the drive of motor 2.

The present embodiment is explained with reference to the pump body 1 being vertically disposed. The pump body 1 is at least provided with a water inlet joint 6, a plurality of impeller components 7, a middle bracket 8, a plurality of impeller components 7, an upper bracket 9 and a water outlet upper cap 10 from bottom to top in sequence. Wherein, the quantity of impeller subassembly 7 and well support 8 sets up according to the length of high-speed deep-well pump, sets up with three impeller subassembly 7 collocation one well support 8 in this embodiment.

Referring to fig. 2 and 3, a plurality of impeller assemblies 7 are arranged in the pump body 1, the impeller assemblies 7 are connected with the main shaft 3, the main shaft 3 is driven to rotate by the motor 2, the main shaft 3 of the impeller 71 is driven to rotate by the main shaft 3 to generate suction force, water enters from the water inlet joint 6 and is conveyed out from at least the water outlet upper cap 10 along the pump body 1 from below under the action of the impeller assemblies 7. A middle bracket 8 and an upper bracket 9 are arranged in the pump body 1, the middle bracket 8 and the upper bracket 9 are connected with the main shaft 3 through rubber bearings, and the middle bracket 8 and the upper bracket 9 are used for keeping the rotation stability of the main shaft 3.

In the technical solution of this embodiment, each impeller assembly 7 has the same structure, and two adjacent impeller assemblies 7 are stacked on each other, and this embodiment is explained by using one impeller assembly 7.

Specifically, as shown in fig. 4 and 5, the impeller assembly 7 includes an impeller 71 and a guide vane 72.

The guide vane 72 includes a housing 721, a guide plate 722 and a guide plate 723, the shape and size of the housing 721 are matched with the pump body 1, the housing 721 is arranged in a cylinder shape, when the housing 721 is installed in the pump body 1, the outer wall of the housing 721 can be tightly attached to the inner wall of the pump body 1, the housing 721 is arranged in a hollow manner, and the guide plate 722 is fixedly arranged in the housing 721 to seal the axial direction of the housing 721. The flow deflectors 723 are arranged on the upper surface of the flow deflector 722, a plurality of flow deflectors 723 are arranged, and the flow deflectors 723 are arranged on the flow deflector 722 in an involute spiral shape. The center of the guide plate 722 is provided with a connecting hole 724, the connecting hole 724 is arranged in a circular shape, the connecting hole 724 is used for the main shaft 3 to pass through, one end of the guide plate 723 is bordered by the hole edge of the connecting hole 724, the other end of the guide plate 723 is fixed with the inner wall of the shell 721, a guide channel 725 is formed between the adjacent guide plates 723, wherein each guide channel 725 on the guide plate 722 is provided with a guide opening 726, the guide openings 726 are positioned at the outer edge of the guide plate 722, and the guide channels 725 and the inner cavity of the shell 721 can be kept communicated with each other through the arrangement of the guide openings 726.

The end of the casing 721 is fixedly embedded with a mounting plate 727, and the mounting plate 727 covers the flow deflectors 723 to seal the top of the flow guide channel 725. The mounting plate 727 has a central hole 728 at the center thereof, the central hole 728 allowing the spindle 3 to pass therethrough, and the central hole 728 communicating with the fluid-guiding passage 725. The mounting plate 727 is embedded with wear-resistant pieces 729 around the central hole 728, the wear-resistant pieces 729 are ceramic wear-resistant pieces 729, the surfaces of the wear-resistant pieces 729 are flush with the surface of the mounting plate 727, and the outer edge of the mounting plate 727 is provided with an annular convex edge 730.

The impeller 71 is arranged in the inner cavity of the casing 721 of the guide vane 72, the center of the impeller 71 is provided with an impeller sleeve 711, the impeller sleeve 711 is provided with an axle hole 712 for installing the main axle 3, in the embodiment, the cross section of the main axle 3 is arranged in a regular hexagon, the size of the axle hole 712 is matched with the main axle 3, and the axle hole 712 adopts a hexagon socket axle hole 712. The boss 711 extends toward both end surfaces of the impeller 71 and projects from both end surfaces of the impeller 71.

Specifically, the impeller 71 includes an upper blade plate 713, blades 714 and a lower blade plate 715, a water through hole 716 is provided in the center of the lower blade plate 715, a support ring 717 is provided on the lower blade plate 715 around the edge of the water through hole 716, a plurality of blades 714 are provided, the plurality of blades 714 are spirally provided on the lower blade plate 715 in a gradually opened shape, a water through channel 718 is formed between adjacent blades 714, one end of the water through channel 718 is communicated with the water through hole 716, and the other end of the water through channel 718 is communicated with the outside. The upper blade plate 713 covers a plurality of blades 714, the hub 711 is arranged at the center of the upper blade plate 713, the hub 711 extends towards two sides of the upper blade plate 713, one end of the hub 711 protrudes out of the surface of the upper blade plate 713, and the other end of the hub 711 passes through the water through hole 716 and is higher than the surface of the support ring 717.

It is worth to say that a ceramic ring 731 is embedded into the connecting hole 724 in the center of the guide vane 72, a ceramic gasket 732 contacting with the ceramic ring 731 is arranged above the guide vane 72, a gasket shaft hole for mounting the spindle 3 is arranged in the ceramic gasket 732, the shape and size of the gasket shaft hole are matched with the spindle 3, and the gasket shaft hole is an inner hexagonal shaft hole.

When the adjacent impeller assemblies 7 are overlapped with each other, the impeller 71 is positioned in the inner cavity of the shell 721 of the guide vane 72, the support ring 717 of the impeller 71 is in contact with the wear-resistant sheet 729 of the mounting plate 727, the ceramic gasket 732 is clamped between the lower end of the hub 711 of the impeller 71 and the ceramic ring 731, the ceramic gasket 732 is in contact with the ceramic ring 731 instead of the lower end of the hub 711, wherein the upper end of the hub 711 of the impeller 71 is in contact with the ceramic ring 731.

Therefore, in the present application, the impeller 71 is driven by the main shaft 3 to rotate, the impeller 71 rotates at a high speed in the casing 721 of the guide vane 72, wherein the water body rotates along with the impeller 71, the water body flies away from the impeller 71 and is ejected outwards under the action of centrifugal force, the speed of the ejected water body is gradually reduced in the casing 721, the pressure of the ejected water body is gradually increased, and then the ejected water body flows upwards in the guide vane 72, at this time, a vacuum low-pressure area without air and water body is formed at the center of the impeller 71 due to the water body being thrown to the periphery, and the water body is sucked up by the impeller 71 under the action of atmospheric pressure.

Wherein, the water body is pumped and conveyed from bottom to top in the impeller assembly 7, so that silt contained in the water body is easy to accumulate on the mounting plate 727 of the guide vane 72. Therefore, the ceramic gasket 732 is used for replacing the lower end of the hub 711 to be in contact with the ceramic ring 731, and the characteristic that the ceramic gasket 732 and the ceramic ring 731 are made of ceramic and wear-resistant is utilized, so that the abrasion of the end of the hub 711 caused by the sediment in the water body can be effectively reduced, and the service life of the impeller 71 is prolonged.

And silt particle in the water is along with water vortex in the casing 721 inner chamber and throw towards casing 721 inner wall one side, this application passes through the setting of annular protruding edge 730 for silt particle can be gathered in annular protruding edge 730 department, avoid silt to gather on the one hand at mounting panel 727 surface, cause the wearing and tearing of impeller 71 and mounting panel 727, on the other hand passes through the setting of annular protruding edge 730, can block silt, strengthen the protection to casing 721 inner wall, reach the purpose of protection casing 721, in order to improve impeller assembly 7's life.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, 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 (9)

1. Impeller assembly for a high-speed deep-well pump, two adjacent impeller assemblies (7) being stacked together, characterized in that the impeller assemblies (7) comprise an impeller (71) and a guide vane (72);

the impeller (71) is arranged in the guide vane (72), and a support ring (717) is arranged on the lower end face of the impeller (71);

the guide vane (72) comprises a shell (721), a guide plate (722) arranged in the shell (721) and a plurality of guide vanes (723) arranged on the guide plate (722) in an involute spiral manner, wherein the upper end surface of the shell (721) is provided with a mounting plate (727), the middle part of the mounting plate (727) is provided with a wear-resistant sheet (729) for supporting a support ring (717) of an impeller (71) to abut against, the surface of the wear-resistant sheet (729) is flush with the surface of the mounting plate (727), and the outer edge of the mounting plate (727) is provided with an annular convex edge (730).

2. The impeller assembly of a high-speed deep-well pump according to claim 1, characterized in that the impeller (71) comprises an upper blade plate (713), a lower blade plate (715) and a plurality of blades (714), the center of the lower blade plate (715) is provided with a water through hole (716), and the support ring (717) is arranged around the edge of the water through hole (716);

the blades (714) are arranged on the lower blade plate (715) in an involute spiral shape, a water passage (718) is formed between every two adjacent blades (714), one end of the water passage (718) is communicated with the water through hole (716), and the other end of the water passage (718) is communicated with the outside;

the upper blade plate (713) covers a plurality of blades (714), and a hub sleeve (711) is arranged at the center of the upper blade plate (713).

3. The impeller assembly of a high-speed deep-well pump according to claim 2, characterized in that the impeller sleeve (711) extends towards both sides on the upper vane (713), one end of the impeller sleeve (711) protrudes from the surface of the upper vane (713), and the other end of the impeller sleeve (711) passes through the water through hole (716) and is higher than the surface of the support ring (717).

4. The impeller assembly of a high-speed deep-well pump according to claim 1, characterized in that the center of the deflector (722) is provided with a connecting hole (724), one end of the deflector (723) borders the hole edge of the connecting hole (724), the other end of the deflector (723) is fixed to the inner wall of the casing (721), a deflector channel (725) is formed between adjacent deflectors (723), and a deflector port (726) is opened on each deflector (722) at each deflector channel (725).

5. An impeller assembly according to claim 4, characterized in that the flow guide opening (726) is located at the outer edge of the flow guide plate (722).

6. The impeller assembly of a high-speed deep-well pump according to claim 4, characterized in that the mounting plate (727) covers the flow deflectors (723) to close the top of the flow channel (725).

7. The impeller assembly of a high-speed deep-well pump according to claim 1, characterized in that the mounting plate (727) is fitted and fixed to the upper end face of the casing (721).

8. An impeller assembly of a high speed deep well pump according to claim 1, characterized in that the mounting plate (727) is provided with a central hole (728) in a central position, and the wear plate (729) is fitted on the mounting plate (727) around the central hole (728).

9. Impeller assembly of a high-speed deep-well pump according to claim 1, characterized in that the wear pads (729) are ceramic wear pads (729).

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