CN113027804A

CN113027804A - Mouth ring subassembly and use water pump of mouth ring subassembly

Info

Publication number: CN113027804A
Application number: CN202110326222.2A
Authority: CN
Inventors: 韩元平; 丁军峰; 焦朋伟; 何燕
Original assignee: Hefei Xinhu Canned Motor Pump Co Ltd
Current assignee: Hefei Xinhu Canned Motor Pump Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-06-25
Anticipated expiration: 2041-03-26
Also published as: CN113027804B

Abstract

The present invention relates to a mouth ring assembly. The assembly includes: an upper mouth ring, a floating mouth ring, a wave spring, and a lower mouth ring; the lower mouth ring includes an annular bottom, the vertical bottom is provided with an inner wall and an outer wall, the bottom, the inner wall and the outer wall form a receiving groove, and the outer wall is stepped. The outer wall includes a ring-shaped mounting portion parallel to the bottom; the wave spring and the floating ring are sequentially sleeved outside the inner wall and are located in the accommodating groove; the upper ring is annular, the inner diameter of the upper ring is larger than the outer diameter of the inner wall of the lower ring, and the upper ring is annular. The mouth ring is sleeved on the outside of the inner wall and is fixedly connected with the mounting part to restrict the wave spring and the floating mouth ring from sliding out of the accommodating groove. This design can better prevent water leakage, reduce the volume loss of the water pump, and improve the efficiency of the water pump.

Description

Mouth ring subassembly and use water pump of mouth ring subassembly

Technical Field

The invention relates to the field of structures of water pumps, in particular to a mouth ring assembly and a water pump using the mouth ring assembly.

Background

The water pump drives the impeller to rotate at a high speed through the motor, and the medium is sucked from the water inlet and sprayed out of the water outlet. The impeller opening ring and the pump body spigot of the existing horizontal single-stage single-suction centrifugal pump are in clearance fit. Such a centrifugal pump has the following problems:

1. the pressure of the water inlet is low, the pressure in the pump body and the pressure of the water outlet are high, and a medium can flow back to the water inlet from a gap between the impeller opening ring and the pump body spigot to form a backflow turbulence phenomenon, so that the energy loss of the medium is caused, and the performance and the efficiency of the water pump are influenced;

2. the pump shaft has the run-out, and the pump shaft drives the rotation that the impeller is run-out, and impeller choma can bump, rub with the pump body tang, and impeller and pump body are the metalwork, and the friction between two metals can waste very big energy, seriously influences water pump performance. And the pump body of the punching welding is formed by welding a plurality of punching parts, so that the concentricity of the water inlet and the center height of the pump shaft is more difficult to control, and the collision and the friction between the impeller opening ring and the pump body spigot are more easily generated.

Disclosure of Invention

The invention aims to solve the problem of large friction between an impeller inlet and a mouth ring.

To solve the above problem, in a first aspect, the present invention provides an oral ring assembly comprising:

an upper orifice ring 006, a floating orifice ring 005, a wave spring 004, and a lower orifice ring 003;

the lower mouth ring 003 comprises an annular bottom, an inner wall and an outer wall are arranged perpendicular to the bottom, the inner wall and the outer wall form an accommodating groove, the outer wall is in a step shape, and the outer wall comprises an annular mounting part parallel to the bottom;

the wave spring 004 and the floating mouth ring 005 are sequentially sleeved outside the inner wall and positioned in the accommodating groove;

go up choma 006 and be the annular, the internal diameter of going up choma 006 is greater than the external diameter of choma 003 inner wall down, it establishes to go up choma the inner wall is outside, with installation department fixed connection, restriction wave spring 004 with unsteady choma 005 roll-off the holding tank.

Optionally, the upper collar 006 is welded to the mounting portion.

Optionally, the material of the wave spring is 2Cr13 stainless steel.

In a second aspect, the present invention also provides a water pump, including: the mouth ring assembly 007, pump body 001, impeller 002 as described in the first aspect;

the mouth ring assembly 007 is placed in a spigot of the pump body 001 in an interference manner; the impeller 002 is inserted into the gap between the floating eye 005 and the lower eye 003 of the eye assembly 007;

the floating orifice ring 005 is moved in the impeller radial direction 008 to automatically adjust its clearance with the impeller 002.

Optionally, an inlet portion of the impeller 002 is inserted into a gap between the floating orifice ring 005 and the lower orifice ring 003 in the impeller radial direction.

According to the invention, by designing the floatable retaining ring assembly, the floating opening ring 005 can move along the radial 008 to automatically adjust the clearance between the floating opening ring 005 and the impeller 002, so that the risk of friction between the impeller inlet and the opening ring is reduced. Meanwhile, the impeller 002 rotates at a high speed along the axial direction 009, and water flow forms a labyrinth line, so that water leakage can be better prevented, the volume loss of the water pump is reduced, and the efficiency of the water pump is improved.

Drawings

Figure 1 is a block diagram of an oral ring assembly according to an embodiment of the present invention;

FIG. 2 is a block diagram of a water pump according to an embodiment of the present invention;

fig. 3 is another structural diagram of a water pump according to an embodiment of the present invention.

Detailed Description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Figure 1 is a block diagram of an oral ring assembly according to an embodiment of the present invention. The method comprises the following steps: an upper orifice ring 006, a floating orifice ring 005, a wave spring 004, and a lower orifice ring 003; the lower mouth ring 003 comprises an annular bottom, an inner wall and an outer wall are arranged perpendicular to the bottom, the inner wall and the outer wall form an accommodating groove, the outer wall is in a step shape, and the outer wall comprises an annular mounting part parallel to the bottom; the wave spring 004 and the floating mouth ring 005 are sequentially sleeved outside the inner wall and positioned in the accommodating groove; go up choma 006 and be the annular, the internal diameter of going up choma 006 is greater than the external diameter of choma 003 inner wall down, it establishes to go up choma the inner wall is outside, with installation department fixed connection, restriction wave spring 004 with unsteady choma 005 roll-off the holding tank.

Specifically, the upper orifice ring 006 may be mounted on the mounting portion by welding. The material of the wave spring 004 is 2Cr13 stainless steel.

The wave spring 004 may also be a cylindrical coil spring.

FIG. 2 is a block diagram of a water pump according to an embodiment of the present invention; fig. 3 is another structural diagram of a water pump according to an embodiment of the present invention.

The water pump comprises a mouth ring assembly 007, a pump body 001 and an impeller 002; the mouth ring assembly 007 is placed in a spigot of the pump body 001 in an interference manner; the impeller 002 is inserted into the gap between the floating eye 005 and the lower eye 003 of the eye assembly 007; the floating orifice ring 005 is moved in the impeller radial direction 008 to automatically adjust its clearance with the impeller 002.

The inlet portion of the impeller 002 is inserted into the gap between the floating orifice ring 005 and the lower orifice ring 003.

Although the invention has been described in detail hereinabove by way of general description, specific embodiments and experiments, it will be apparent to those skilled in the art that many modifications and improvements can be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A mouth ring assembly, characterized in that, comprising: an upper mouth ring (006), a floating mouth ring (005), a wave spring (004), and a lower mouth ring (003);

The lower mouth ring (003) includes an annular bottom, an inner wall and an outer wall are arranged perpendicular to the bottom, the bottom, the inner wall and the outer wall form a receiving groove, the outer wall is in a stepped shape, and the outer wall is parallel to the bottom. the annular mounting portion;

The wave spring (004) and the floating mouth ring (005) are sequentially sleeved outside the inner wall and are located in the accommodating groove;

The upper mouth ring (006) is annular, the inner diameter of the upper mouth ring (006) is larger than the outer diameter of the inner wall of the lower mouth ring (003), and the upper mouth ring is sleeved outside the inner wall, and is connected to the outer diameter of the inner wall. The mounting portion is fixedly connected to restrict the wave spring (004) and the floating mouth ring (005) from sliding out of the accommodating groove.

2. The mouth ring assembly according to claim 1, wherein the upper mouth ring (006) is welded on the mounting portion.

3. The mouth ring assembly according to claim 1, wherein the material of the wave spring (004) is 2Cr13 stainless steel.

4. A water pump, characterized in that, comprising: the mouth ring assembly (007) according to any one of claims 1-3, a pump body (001), and an impeller (002);

The mouth ring assembly (007) is placed into the mouth of the pump body (001) by means of interference; the impeller (002) is inserted into the floating mouth ring (005) of the mouth ring assembly (007) and the in the gap of the lower mouth ring (003);

The floating mouth ring (005) moves along the impeller radial direction (008) to automatically adjust its clearance with the impeller (002).

5. The water pump according to claim 4, wherein the inlet portion of the impeller (002) is inserted between the floating port ring (005) and the lower port ring (003) along the radial direction of the impeller in the gap.