CN219622895U

CN219622895U - Submersible pump capable of avoiding stator short circuit

Info

Publication number: CN219622895U
Application number: CN202321006942.1U
Authority: CN
Inventors: 周向阳; 周印轩
Original assignee: Luohe Sitong Pump Industrial Co ltd
Current assignee: Luohe Sitong Pump Industrial Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-09-01
Anticipated expiration: 2033-04-28

Abstract

The utility model discloses a submersible pump for avoiding stator short circuit, comprising: the water pump comprises a water pump shell, wherein a rotor is rotatably arranged in the middle of an inner cavity of the water pump shell, a stator is arranged in the inner cavity of the water pump shell, and a spacer bush is arranged in a gap between the rotor and the stator; an inner pressing block is arranged at four corners of the inner end of the spacer bush, a sliding rod is arranged at the outer end of the inner pressing block, the sliding rod extends out of the spacer bush and is provided with a buffer block, a rotating shaft is in interference fit with a central hole of the rotor, and a bearing is arranged at the connecting end of the rotating shaft and the water pump shell. This avoid stator short circuit's immersible pump passes through the briquetting of both sides and fixes the spacer both ends on the inner chamber wall of water pump housing to through installing interior briquetting in the spacer, interior briquetting connection slide bar and buffer block, be convenient for fix the spacer in the space between rotor and stator, avoid the spacer to take place to remove inside and the laminating of rotor, the practicality is stronger.

Description

Submersible pump capable of avoiding stator short circuit

Technical Field

The utility model relates to the technical field of water pumps, in particular to a submersible pump capable of avoiding stator short circuit.

Background

The application number 202222518374.5 provides a submersible pump which realizes the isolation protection effect on a stator through a spacer, and under the condition that water enters a permanent magnet synchronous motor, water enters a rotor and cannot enter the stator separated by the spacer, so that the damage caused by short circuit of the stator is avoided;

but the device is when preventing the stator short circuit through the spacer, and the spacer is influenced by external force easily and is laminated with the rotor, leads to the spacer surface to receive wearing and tearing easily for the impaired time of spacer, reduction spacer's life is inconvenient to prevent the stator short circuit, and the spacer lacks certain fixed effect, is difficult to use, and the practicality is relatively poor.

Disclosure of Invention

The utility model aims to provide a submersible pump capable of avoiding stator short circuit, so as to solve the problem that a submersible pump spacer bush capable of avoiding stator short circuit in the prior art is easy to attach.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a submersible pump for avoiding stator shorting, comprising: the water pump comprises a water pump shell, wherein a rotor is rotatably arranged in the middle of an inner cavity of the water pump shell, a stator is arranged in the inner cavity of the water pump shell, and a spacer bush is arranged in a gap between the rotor and the stator; an inner pressing block is arranged at four corners of the inner end of the spacer bush, a sliding rod is arranged at the outer end of the inner pressing block, the sliding rod extends out of the spacer bush and is provided with a buffer block, a rotating shaft is in interference fit with a central hole of the rotor, and a bearing is arranged at the connecting end of the rotating shaft and the water pump shell.

Preferably, the surface of the buffer block is provided with a stud, and the buffer block is arranged on the inner cavity wall of the water pump shell through the stud.

Preferably, the sliding rod slidingly extends into the inner cavity of the buffer block and is provided with a limiting plate, the inner end of the limiting plate is provided with a spring, and the inner end of the spring is welded in the inner cavity of the buffer block.

Preferably, annular grooves are symmetrically formed in each circle of spiral ring of the spring, an oil roller is arranged between the annular grooves on two sides, strip-shaped grooves are formed in the surface of the oil roller, and holes matched with the oil roller are formed in the inner end of the limiting plate.

Preferably, the first pressing block and the second pressing block are arranged on the surfaces of the upper end and the lower end of the spacer bush, screw holes are formed in the surfaces of the first pressing block, the second pressing block and the upper inner cavity wall and the lower inner cavity wall of the water pump shell, bolts are arranged in the screw holes in a threaded mode, and the radius of the first pressing block and the second pressing block after being connected is larger than that of the bearing.

Preferably, a slot is formed in the middle of the surfaces of the two sides of the first pressing block, an inserting block is mounted on the surfaces of the two sides of the second pressing block, and the inserting block is matched with the slot for use.

Preferably, a power supply chamber is mounted at the top end of the water pump shell, and the power supply chamber is electrically connected with the stator.

Compared with the prior art, the utility model has the beneficial effects that: this avoid stator short circuit's immersible pump passes through the briquetting of both sides and fixes the spacer both ends on the inner chamber wall of water pump housing to through installing interior briquetting in the spacer, interior briquetting connection slide bar and buffer block, be convenient for fix the spacer in the space between rotor and stator, avoid the spacer to take place to remove inside and the laminating of rotor, the practicality is stronger.

Drawings

FIG. 1 is a cross-sectional view of the present utility model;

FIG. 2 is a cross-sectional view of the bumper block of FIG. 1;

FIG. 3 is a schematic view of the spring structure of FIG. 2;

fig. 4 is a schematic diagram of the briquette structure of fig. 1.

In the figure: 1. the water pump comprises a water pump shell, 2, a rotor, 3, a rotating shaft, 4, a bearing, 5, a stator, 6, a spacer bush, 7, an inner pressing block, 8, a sliding rod, 9, a buffer block, 10, a stud, 11, a pressing block I, 12, a pressing block II, 13, a limiting plate, 14, a spring, 15, a slot, 16, an inserting block, 17, a screw hole, 18, a bolt, 19, a power supply chamber, 141, an annular groove, 142, an oil roller, 143 and a strip-shaped groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: a submersible pump for avoiding stator shorting, comprising: the water pump comprises a water pump shell 1, wherein a rotor 2 is rotatably arranged in the middle of an inner cavity of the water pump shell 1, a stator 5 is arranged in the inner cavity of the water pump shell 1, a spacer 6 is arranged in a gap between the rotor 2 and the stator 5, and water is prevented from entering the stator 5 conveniently through the spacer 6;

an inner pressing block 7 is arranged at four corners of the inner end of the spacer bush 6, a sliding rod 8 is arranged at the outer end of the inner pressing block 7, the sliding rod 8 extends out of the spacer bush 6 and is provided with a buffer block 9, a rotating shaft 3 is in interference fit with a central hole of the rotor 2, a bearing 4 is arranged at the connecting end of the rotating shaft 3 and the water pump shell 1, and the spacer bush 6 is conveniently kept in a certain area in a gap through the bearing.

In a preferred scheme, studs 10 are arranged on the surface of the buffer block 9, the buffer block 9 is arranged on the inner cavity wall of the water pump shell 1 through the studs 10, and the buffer block 9 is conveniently fixed.

As a preferred scheme, still further, slide bar 8 slip extends into buffer block 9's inner chamber and installs limiting plate 13, and spring 14 is installed to limiting plate 13's inner, and spring 14's inner welding is at buffer block 9's inner chamber, and through the above-mentioned spacer 6 resilience of being convenient for.

As a preferred scheme, further, the annular grooves 141 are symmetrically formed on each circle of the spiral ring of the spring 14, an oil roller 142 is mounted between the annular grooves 141 on two sides, a strip-shaped groove 143 is formed on the surface of the oil roller 142, and an opening matched with the oil roller 142 is formed at the inner end of the limiting plate 13, so that the spring 14 is convenient to lubricate.

As a preferable scheme, the upper end surface and the lower end surface of the spacer bush 6 are respectively provided with a first pressing block 11 and a second pressing block 12, the surfaces of the first pressing block 11, the second pressing block 12 and the upper inner cavity wall and the lower inner cavity wall of the water pump shell 1 are respectively provided with a screw hole 17, the screw holes 17 are provided with bolts 18 in a threaded manner, the radius of the first pressing block 11 and the second pressing block 12 after being connected is larger than the radius of the bearing 4, and the upper end and the lower end of the spacer bush 6 are convenient to install.

As a preferred scheme, still further, slot 15 has all been seted up at briquetting one 11 both sides surface middle part, and a plug 16 is all installed to briquetting two 12 both sides surface, and plug 16 cooperatees with slot 15 and uses, through above-mentioned installation briquetting one 11 and briquetting two 12 of being convenient for.

As a preferable scheme, a power supply chamber 19 is arranged at the top end of the water pump shell 1, and the power supply chamber 19 is electrically connected with the stator 5, so that the pump body can be conveniently driven.

The water pump shell, the rotor, the stator and the power supply chamber are of the prior art, and the water pump shell, the rotor, the stator and the power supply chamber are of the same structure and the same connection mode in the application number 202222518374.5, so long as the water pump shell, the rotor, the stator and the power supply chamber meet the requirements of the scheme.

Working principle: when the water pump is used, the spacer bush 6 is sleeved on the surface of the rotor 2, the spacer bush 6 is fixed on the inner cavity wall of the water pump shell 1 through the first pressing block 11 and the second pressing block 12, the inserting block 16 is inserted into the inserting slot 15 and is inserted into the screw hole 17 through the bolt 18, the spacer bush 6 is fixed on the inner cavity wall of the water pump shell 1, the inner pressing block 7 is arranged at four corners of the inner end of the spacer bush 6, the sliding rod 8 at the outer end of the inner pressing block 7 extends out of the spacer bush 6, the outer end of the sliding rod 8 is fixed on the inner cavity wall of the water pump shell 1 through the buffer block 9, and the spacer bush 6 can be fixed in a certain area between the rotor 2 and the stator 5 through the cooperation of the limiting plate 13 and the spring 14, so that the water pump has high practicability.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation; also, unless expressly specified and limited otherwise, the terms "disposed," "mounted," "connected," "fixedly mounted," and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

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

Claims

1. A submersible pump for avoiding stator shorting, comprising: the water pump is characterized in that a rotor (2) is rotatably arranged in the middle of an inner cavity of the water pump shell (1), a stator (5) is arranged in the inner cavity of the water pump shell (1), and a spacer bush (6) is arranged in a gap between the rotor (2) and the stator (5);

an inner pressing block (7) is arranged at four corners of the inner end of the spacer bush (6), a sliding rod (8) is arranged at the outer end of the inner pressing block (7), the sliding rod (8) extends out of the spacer bush (6) and is provided with a buffer block (9), a rotating shaft (3) is in interference fit with a central hole of the rotor (2), and a bearing (4) is arranged at the connecting end of the rotating shaft (3) and the water pump shell (1).

2. A submersible pump for avoiding stator shorting according to claim 1, wherein the surface of the buffer block (9) is provided with studs (10), and the buffer block (9) is mounted on the inner cavity wall of the water pump housing (1) through the studs (10).

3. A submersible pump for avoiding stator shorting according to claim 1, wherein the sliding rod (8) slidingly extends into the inner cavity of the buffer block (9) and is provided with a limiting plate (13), the inner end of the limiting plate (13) is provided with a spring (14), and the inner end of the spring (14) is welded in the inner cavity of the buffer block (9).

4. A submersible pump for avoiding stator short circuit according to claim 3, characterized in that each coil of the spring (14) is symmetrically provided with an annular groove (141), an oil roller (142) is arranged between the annular grooves (141) at both sides, a strip-shaped groove (143) is arranged on the surface of the oil roller (142), and an opening matched with the oil roller (142) is arranged at the inner end of the limiting plate (13).

5. The submersible pump for avoiding stator short circuit according to claim 1, wherein the surfaces of the upper end and the lower end of the spacer bush (6) are provided with a first pressing block (11) and a second pressing block (12), the surfaces of the first pressing block (11), the second pressing block (12) and the upper inner cavity wall and the lower inner cavity wall of the water pump shell (1) are provided with screw holes (17), the screw holes (17) are provided with bolts (18) in a threaded manner, and the radius of the first pressing block (11) and the second pressing block (12) after being connected is larger than the radius of the bearing (4).

6. The submersible pump for avoiding stator short circuit according to claim 5, wherein a slot (15) is formed in the middle of the two side surfaces of the first pressing block (11), an inserting block (16) is mounted on the two side surfaces of the second pressing block (12), and the inserting block (16) is matched with the slot (15).

7. A submersible pump avoiding stator shorting according to claim 1, characterized in that the top end of the pump housing (1) is fitted with a power supply chamber (19), the power supply chamber (19) being electrically connected with the stator (5).