CN210371202U

CN210371202U - Water flow internal circulation water pump

Info

Publication number: CN210371202U
Application number: CN201921053580.5U
Authority: CN
Inventors: 黄宗洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-04-21
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a rivers internal circulation water pump, including screen panel and gland, one side of gland is connected with the screen panel, and the opposite side of gland is connected with main body cover, the inner chamber cover of gland is equipped with the impeller that cup joints with rotor one end, the rotor rotates and installs in main body cover's inner chamber, the impeller is close to a rotor side and is provided with the center disk, and the side of center disk has seted up the through-hole, be provided with the gap between main body cover's inner chamber inner wall and the rotor, and the gap is through the through-hole of center disk and the cavity of gland link up, coaxial core cover is equipped with the ceramic axle in the rotor, the ceramic axle is hollow structure, and the one end that hollow structure kept away from the; water flow enters the gland from the mesh enclosure, is sucked into the impeller and then is thrown out by centrifugal force, and part of water flows through the holes on the central disc, enters the gap between the inner cavity of the main body shell and the rotor and then flows back to the impeller cavity through the hollow ceramic shaft to form circulation, so that heat and impurities are brought out.

Description

Water flow internal circulation water pump

Technical Field

The utility model relates to a water pump technical field specifically is rivers inner loop water pump.

Background

The water pump is a machine for conveying liquid or pressurizing liquid, and it can transfer the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, and is mainly used for conveying liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal, etc., and also can be used for conveying liquid, gas mixture and liquid containing suspended solid matter. The technical parameters of the water pump performance mainly comprise flow, suction lift, shaft power, water power, efficiency and the like; the water pumps can be divided into types such as volumetric water pumps and vane pumps according to different working principles, wherein the volumetric pumps transmit energy by utilizing the change of the volume of working chambers of the volumetric pumps; vane pumps transfer energy by the interaction of rotating vanes with water and are available in the types of centrifugal pumps, axial flow pumps, mixed flow pumps, and the like. The vane pump has strong applicability, and is widely applied to actual production and life.

However, the water pump in the prior art has many defects in the actual use process, such as:

at present, a commonly used horizontal single-stage centrifugal pump mainly comprises a pump body, a pump cover and a motor with an output shaft, wherein an impeller is arranged in the pump body, the motor drives the impeller to rotate at a high speed in the pump body through the output shaft, liquid enters an inner cavity of the pump body through a mesh enclosure at one end of the pump body, the liquid moves outwards from the impeller along a flow channel among blades under the action of centrifugal force, is thrown out from the end part of the impeller and is discharged from a water gap, and the liquid continuously enters the impeller to supplement the discharged liquid impeller to rotate ceaselessly due to the stable pressure difference formed between the impeller and the mesh enclosure, so that the effect of continuously sucking and discharging the liquid is achieved; however, the motor rotor gradually heats in the process of long-time high-speed rotation, and heat is difficult to quickly dissipate, so that the service life of the rotor is greatly shortened; in addition, impurities are easily mixed between the end face of the impeller close to the rotor and the inner wall of the pump body, and particularly when the water pump is used for pumping special liquid media, precipitates are generated, so that the water pump is blocked.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rivers inner loop water pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: rivers inner circulating water pump, including screen panel and gland, one side of gland is connected with the screen panel, and the opposite side of gland is connected with main body cover, the inner chamber cover of gland is equipped with the impeller that cup joints with rotor one end, and the outer wall top of gland is provided with the delivery port, the rotor rotate install in main body cover's inner chamber, the impeller is close to a rotor side is provided with the center plate, and the side of center plate has seted up the through-hole, be provided with the gap between main body cover's inner chamber inner wall and the rotor, and the gap passes through the through-hole of center plate with the cavity of gland link up, coaxial core cover is equipped with the ceramic axle in the rotor, the ceramic axle is hollow structure, and hollow structure keeps away from the one end of impeller and the peripheral gap intercommunication of rotor.

Preferably, an outer cavity structure and an inner cavity structure are arranged in the main body shell, the outer cavity structure and the inner cavity structure are coaxially arranged, an annular coil group is sleeved in the outer cavity structure of the main body shell, a ceramic shaft is rotatably arranged in the inner cavity structure of the main body shell, and a magnet rotor is fixedly sleeved on the periphery of the ceramic shaft.

Preferably, the opening directions of the inner cavity structure and the outer cavity structure of the main body shell are opposite, the outer side surface of the main body shell is clamped with the rear cover, the main body shell is made of a non-magnetic material, and an insulating layer is arranged between the inner wall of the outer cavity structure of the main body shell and the coil assembly.

Preferably, the opening arranged at the peripheral top end of the gland is of an external thread structure, the top end of the opening is sleeved with a small water gap, the periphery of the small water gap is sleeved with a large water gap, the periphery of the large water gap is sleeved with a screw cap, the inner diameter of a round hole formed in the upper surface of the screw cap is equal to the outer diameter of the peripheral bottom end of the large water gap, and the internal thread structure of the screw cap is in threaded sleeve matching with the external thread structure at the opening.

Preferably, the center plate joint is in main body cover is close to a side of gland, and the periphery of center plate with be the water-stop structure between main body cover inner cavity structure's the inner wall, the inner wall of gland with be the water-stop structure between main body cover inner cavity structure's the inner wall, the center department of center plate rotates with the ceramic axle and cup joints, and is provided with first graphite axle sleeve between the outer wall of center plate and ceramic axle, the one end of ceramic axle with main body cover inner cavity structure's one end rotates and is connected, and the ceramic axle with be provided with second graphite axle sleeve between the main body cover inner cavity structure.

Preferably, a first silica gel sleeve is sleeved between the periphery of the first graphite shaft sleeve and the central disc, and a second silica gel sleeve is sleeved between the periphery of the second graphite shaft sleeve and the inner cavity structure of the main body shell.

Preferably, the first graphite bushing and the second graphite bushing are provided with a thread groove structure relative to the inner wall of the periphery of the ceramic shaft.

Preferably, a first insulating sleeve and a second insulating sleeve are respectively clamped on two side faces of the coil assembly, and the first insulating sleeve and the second insulating sleeve are respectively fixedly sleeved on the outer wall of the inner cavity structure of the main body shell.

Preferably, a ceramic gasket and a ceramic rubber sleeve are sleeved on the periphery of the part, located between the central disc and the magnet rotor, of the ceramic shaft, a circular groove is formed in the side face, opposite to the central disc, of the ceramic rubber sleeve, and the ceramic gasket is sleeved in the circular groove.

Preferably, the impeller comprises impeller right lid and impeller left lid joint, the impeller right lid has been cup jointed to the periphery of ceramic axle outer end, and the ceramic axle runs through the impeller right lid, the lateral surface of impeller right lid is provided with the blade, and the impeller right lid has impeller left lid through the blade joint, impeller left lid with be provided with the clearance between the outer terminal surface of ceramic axle.

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

the utility model relates to a water pump impeller is provided with a center plate with a through hole near the end face of one side of a magnet rotor, the through hole on the center plate is communicated with the gap between the cavity in the pump main body shell and the periphery of the rotor, and the ceramic rotor is of a hollow structure, so that water flow enters a gland from a mesh enclosure, is thrown out by centrifugal force after being sucked into the impeller in the gland, part of the water flow enters the gap between the inner cavity of the main body shell and the magnet rotor through a small hole on the center plate due to pressure difference and then flows back to the impeller through the hole on the center plate to form circulation, heat and impurities are brought out, the rotor is cooled, meanwhile, a spiral groove is arranged at the position where the graphite (ceramic) shaft sleeve is matched with a ceramic shaft, so that water can easily enter a matching gap, and micro impurities in the matching gap can be led into the spiral groove, the water pump is taken away by water flow, so that the phenomenon of blocking of the water pump is effectively avoided, the lubrication of the shaft sleeve and the shaft is improved, and the service life of the whole water pump is greatly prolonged.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1 at B according to the present invention;

FIG. 4 is an overall assembly view of the present invention;

fig. 5 is a schematic sectional view of the first graphite sleeve of the present invention.

In the figure: 1-a net cover; 2-pressing the cover; 3-a screw cap; 4-large water gap; 5-small water gap; 6-a first silica gel sleeve; 7-a first graphite shaft sleeve; 8-a ceramic gasket; 9-ceramic rubber sleeve; 10-a ceramic shaft; 11-a magnet rotor; 12-a second graphite sleeve; 13-second silica gel sleeve; 14-a first insulating sleeve; 15-coil assembly; 16-a second insulating sleeve; 17-a main body housing; 18-silica gel pad; 19-rear cover; 20-a central disc; 21-impeller right cover; 22-left impeller cover.

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.

Embodiment 1, please refer to fig. 1-5, the present invention provides a technical solution: a water flow internal circulation water pump comprises a mesh enclosure 1 and a gland 2, one side of the gland 2 is connected with the mesh enclosure 1, the other side of the gland 2 is connected with a main body shell 17, an impeller sleeved with one end of a rotor is sleeved in an inner cavity of the gland 2, a water outlet is arranged at the top end of the outer wall of the gland 2, the rotor is rotatably installed in the inner cavity of the main body shell 17, a central disc 20 is arranged on one side surface of the impeller close to the rotor, a through hole is arranged on the side surface of the central disc 20, a gap is arranged between the inner wall of the inner cavity of the main body shell 17 and the rotor and is communicated with a cavity of the gland 2 through the through hole of the central disc 20, a ceramic shaft 10 is coaxially sleeved in the rotor and is of a hollow structure, one end of the hollow structure far away from the impeller is communicated with the gap at the periphery of the rotor, the other, part rivers are because the pressure differential reason from gland 2 in through the aperture on the central disk 20, get into the clearance between main body cover 17's inner chamber and the rotor, then through in hollow ceramic axle 10, flow back to the impeller, form the circulation, take out heat and impurity, not only make the rotor obtain the cooling, avoid the water pump to produce the dead phenomenon of card moreover, improved the holistic life of water pump greatly.

The opening arranged at the top end of the periphery of the gland 2 is of an external thread structure, the top end of the opening is sleeved with a small water gap 5, the periphery of the small water gap 5 is sleeved with a large water gap 4, the periphery of the large water gap 4 is sleeved with a screw cap 3, the inner diameter of the screw cap 3, of which the upper surface is provided with a round hole, is equal to the outer diameter of the bottom end of the periphery of the large water gap 4, the internal thread structure of the screw cap 3 is in threaded sleeve matching with the external thread structure at the opening, and when a water pump needs to be externally connected with a water drainage pipeline, if; if the water drainage pipeline is small in caliber, the screw cap 3 needs to be removed firstly, then the large water gap 4 is taken out, the screw cap 3 is installed again, the small water gap 5 is fixed at the water outlet, and then the pipeline is sleeved on the small water gap 5.

The central disc 20 is clamped on one side face of the main body shell 17 close to the gland 2, a water sealing structure is arranged between the periphery of the central disc 20 and the inner wall of the inner cavity structure of the main body shell 17, a water sealing structure is arranged between the inner wall of the gland 2 and the inner wall of the inner cavity structure of the main body shell 17, the center of the central disc 20 is rotatably sleeved with the ceramic shaft 10, a first graphite shaft sleeve 7 is arranged between the central disc 20 and the outer wall of the ceramic shaft 10, one end of the ceramic shaft 10 is rotatably connected with one end of the inner cavity structure of the main body shell 17, and a second graphite shaft sleeve 12 is arranged between the ceramic shaft 10 and the inner cavity structure of the main body shell 17, so that all connecting parts between the impeller and the rotor are of the water sealing structure except for a cooling and.

First graphite axle sleeve 7 and second graphite axle sleeve 12 are provided with the thread groove structure for the outlying inner wall of ceramic axle 10, because the fit clearance of ceramic axle 10 and axle sleeve is very little, nevertheless have impurity in solution the inside, still can cause the card phenomenon of dying very easily, have the existence of helicla flute for tiny impurity is brought into the helicla flute by rivers and is taken away by water, thereby prevents the card phenomenon of dying.

The impeller comprises impeller right lid 21 and impeller left lid 22 joint, the periphery of ceramic axle 10 outer end has cup jointed impeller right lid 21, and ceramic axle 10 runs through impeller right lid 21, the lateral surface of impeller right lid 21 is provided with the blade, and impeller right lid 21 has impeller left lid 22 through the blade joint, be provided with the clearance between impeller left lid 22 and the outer terminal surface of ceramic axle 10, form the centrifugal channel of rivers between impeller right lid 21 and the impeller left lid 22, satisfy rivers and discharge from the export, the space between the cavity of ceramic axle 10 and the blade link up, thereby form complete cooling, wash the water circuit circulation.

Embodiment 2, please refer to fig. 1-4, the present invention provides a technical solution: water flow internal circulation water pump, including screen panel 1 and gland 2, one side of gland 2 is connected with screen panel 1, and the opposite side of gland 2 is connected with main body cover 17, the inner chamber cover of gland 2 is equipped with the impeller that cup joints with rotor one end, and the outer wall top of gland 2 is provided with the delivery port, the rotor rotates and installs in the inner chamber of main body cover 17, be provided with exocoel structure and inner chamber structure in the main body cover 17, and exocoel structure and inner chamber structure be coaxial center setting, annular coil assembly 15 is adorned to exocoel structure endotheca of main body cover 17, ceramic axle 10 is installed to the intracavity structure internal rotation of main body cover 17, and the peripheral fixed cover of ceramic axle 10 has cup jointed magnet rotor 11, in the use, supply power to coil assembly 15, the magnetic field of its production makes magnet rotor 11 rotate fast, and.

The opening opposite direction of the inner chamber structure of main body cover 17 and exocoel structure, and the lateral surface joint of main body cover 17 has back lid 19, main body cover 17 is the non-magnetic material, and be provided with the insulating layer between exocoel structure inner wall of main body cover 17 and coil assembly 15, the both sides face difference joint of coil assembly 15 has first insulating cover 14 and second insulating cover 16, first insulating cover 14 and second insulating cover 16 fix the outer wall of cup jointing at main body cover 17 inner chamber structure respectively, make coil assembly 15 isolated with rivers completely, and effectively prevent the electric leakage, avoid the electric shock accident, through the non-magnetic material, make the magnetic field that coil assembly 15 produced not disturbed, make iron rotor 11 high-efficient rotation.

First silica gel cover 6 has cup jointed between the periphery of first graphite axle sleeve 7 and central disk 20, has cup jointed second silica gel cover 13 between the periphery of second graphite axle sleeve 12 and the inner cavity structure of main body cover 17, supports ceramic axle 10 through first graphite axle sleeve 7 and second graphite axle sleeve 12, reaches the effect that reduces the contact surface and reduce friction, and first silica gel cover 6 and second silica gel cover 13 provide shock-absorbing function.

Ceramic gasket 8 and ceramic gum cover 9 have been cup jointed to the periphery that ceramic axle 10 lies in the part between central disk 20 and the magnet rotor 11, and the annular groove has been seted up for the side of central disk 20 to ceramic gum cover 9, and ceramic gasket 8 cup joints in the annular groove, firmly spacing on ceramic axle 10 with magnet rotor 11, takes place to shift when preventing to rotate.

The working principle is as follows: when the water heater is used, the coil assembly 15 is powered, the magnet rotor 11 is rapidly rotated by a magnetic field generated by the coil assembly, the impeller is driven to rotate, negative pressure is formed on the side of the mesh enclosure 1 by the rotation of the impeller, water flow enters the gland 2 from the mesh enclosure 1, the water flow is sucked into the impeller in the gland 2 and then thrown away by centrifugal force, most of the water flow is discharged from the water outlet, and meanwhile, a small part of the water flow enters the gap between the inner cavity of the main body shell 17 and the magnet rotor 11 from the gland 2 through the small hole in the central disc 20 due to pressure difference and then flows back to the impeller through the hollow ceramic shaft 10 to form circulation and bring heat and impurities out.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Rivers inner circulating water pump, including screen panel (1) and gland (2), one side of gland (2) is connected with screen panel (1), and the opposite side of gland (2) is connected with main body cover (17), the inner chamber cover of gland (2) is equipped with the impeller that cup joints with rotor one end, and the outer wall top of gland (2) is provided with the delivery port, the rotor rotate install in the inner chamber of main body cover (17), its characterized in that: the impeller is close to a side face of the rotor is provided with a central disc (20), a through hole is formed in the side face of the central disc (20), a gap is formed between the inner cavity inner wall of the main body shell (17) and the rotor, the gap passes through the through hole of the central disc (20) and the cavity of the gland (2), a ceramic shaft (10) is sleeved in the rotor coaxially, the ceramic shaft (10) is of a hollow structure, one end, far away from the impeller, of the hollow structure is communicated with the gap of the periphery of the rotor, and the other end of the ceramic shaft (10) penetrates through the impeller.

2. The in-water-flow circulation water pump according to claim 1, characterized in that: an outer cavity structure and an inner cavity structure are arranged in the main body shell (17), the outer cavity structure and the inner cavity structure are coaxially arranged, an annular coil group (15) is sleeved in the outer cavity structure of the main body shell (17), a ceramic shaft (10) is rotatably arranged in the inner cavity structure of the main body shell (17), and a magnet rotor (11) is fixedly sleeved on the periphery of the ceramic shaft (10).

3. The in-water-flow circulation water pump according to claim 2, characterized in that: the opening directions of the inner cavity structure and the outer cavity structure of the main body shell (17) are opposite, the outer side surface of the main body shell (17) is clamped with a rear cover (19), the main body shell (17) is made of a non-magnetic material, and an insulating layer is arranged between the inner wall of the outer cavity structure of the main body shell (17) and the coil assembly (15).

4. The in-water-flow circulation water pump according to claim 1, characterized in that: the opening that the peripheral top of gland (2) set up is external screw thread structure, and the opening top has cup jointed little mouth of a river (5), big mouth of a river (4) has been cup jointed to the periphery of little mouth of a river (5), nut (3) has been cup jointed to the periphery of big mouth of a river (4), the internal diameter that nut (3) were seted up the round hole for the upper surface equals the external diameter of big mouth of a river (4) peripheral bottom department, the internal screw thread structure of nut (3) cup joints the matching with the external screw thread structure screw thread of opening part.

5. The in-water-flow circulation water pump according to claim 2, characterized in that: center plate (20) joint is in main body cover (17) are close to a side of gland (2), and the periphery of center plate (20) with be the water-stop structure between main body cover (17) inner cavity structure's the inner wall, the inner wall of gland (2) with be the water-stop structure between main body cover (17) inner cavity structure's the inner wall, the center department of center plate (20) rotates with ceramic axle (10) and cup joints, and is provided with first graphite axle sleeve (7) between the outer wall of center plate (20) and ceramic axle (10), the one end of ceramic axle (10) with main body cover (17) inner cavity structure's one end rotates and is connected, and ceramic axle (10) with be provided with second graphite axle sleeve (12) between main body cover (17) inner cavity structure.

6. The in-water-flow circulation water pump according to claim 5, characterized in that: a first silica gel sleeve (6) is sleeved between the periphery of the first graphite shaft sleeve (7) and the central disc (20), and a second silica gel sleeve (13) is sleeved between the periphery of the second graphite shaft sleeve (12) and the inner cavity structure of the main body shell (17).

7. The in-water-flow circulation water pump according to claim 6, characterized in that: and the first graphite shaft sleeve (7) and the second graphite shaft sleeve (12) are provided with thread groove structures relative to the inner wall of the periphery of the ceramic shaft (10).

8. The in-water-flow circulation water pump according to claim 2, characterized in that: two side surfaces of the coil assembly (15) are respectively clamped with a first insulating sleeve (14) and a second insulating sleeve (16), and the first insulating sleeve (14) and the second insulating sleeve (16) are respectively fixedly sleeved on the outer wall of the inner cavity structure of the main body shell (17).

9. The in-water-flow circulation water pump according to claim 2, characterized in that: the ceramic shaft (10) is positioned between the central disc (20) and the magnet rotor (11), the periphery of the part is sleeved with a ceramic gasket (8) and a ceramic rubber sleeve (9), the side face of the ceramic rubber sleeve (9) opposite to the central disc (20) is provided with a circular groove, and the ceramic gasket (8) is sleeved in the circular groove.

10. The in-water-flow circulation water pump according to claim 1, characterized in that: the impeller comprises impeller right lid (21) and impeller left lid (22) joint, impeller right lid (21) has been cup jointed to the periphery of ceramic axle (10) outer end, and ceramic axle (10) run through impeller right lid (21), the lateral surface of impeller right lid (21) is provided with the blade, and impeller right lid (21) has impeller left lid (22) through the blade joint, impeller left lid (22) with be provided with the clearance between the outer terminal surface of ceramic axle (10).