CN210893289U

CN210893289U - Water meter movement with magnetic suspension structure

Info

Publication number: CN210893289U
Application number: CN201921837369.2U
Authority: CN
Inventors: 王金营; 罗明; 祝贵萍; 左凯龙
Original assignee: Sanchuan Wisdom Technology Co Ltd
Current assignee: Sanchuan Wisdom Technology Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-30
Anticipated expiration: 2029-10-29

Abstract

The utility model provides a water meter movement with magnetic suspension structure, which comprises a movement body, wherein an impeller box is arranged on the movement body, the center of the bottom of the impeller box is provided with a top, an impeller is arranged above the top, an impeller shaft is arranged on the impeller, a bushing is arranged inside the lower part of the impeller shaft, the top of the bushing is provided with agate, the bushing is sleeved on the top, a first annular magnetic steel is embedded in the lower end surface of the bottom of the impeller shaft, the first annular magnetic steel is sleeved outside the bushing, a second annular magnetic steel is embedded in the upper end surface of the bottom of the impeller box, the second annular magnetic steel is sleeved outside the top, the first annular magnetic steel and the second annular magnetic steel have the same size and are arranged in the same polarity, the utility model discloses a water meter movement with magnetic suspension structure, the impeller is in a suspension state by additionally arranging two annular magnetic steels, the contact between the top and the agate is, the accuracy of the flow of the water meter is improved, and meanwhile the service life of the water meter is effectively prolonged.

Description

Water meter movement with magnetic suspension structure

Technical Field

The utility model belongs to the technical field of the water gauge is made and specifically relates to indicate a water gauge core with magnetic suspension structure.

Background

The water meter core is one of important components in the water meter, the water meter core is generally composed of a counter, a gear box, an impeller box and a filter screen, wherein the impeller comprises an impeller shaft and blades, a bushing is arranged below the impeller shaft, agate is arranged at the top of the bushing, a tip is arranged in the center of the impeller box, and the bushing is sleeved on the tip. When water enters the impeller box from the meter shell of the water meter and impacts the impeller to enable the impeller to generate driving torque, the driving torque of the impeller is larger than resistance torque of the impeller, the impeller starts to rotate, static friction force is generated between the tip in the impeller box and agate in the bushing due to the self-gravity action of the impeller, the part of friction force becomes resistance force when the impeller rotates, under the condition of low flow, the driving force generated by water flow impacting the impeller is smaller than the static friction force generated between the tip in the impeller box and the agate in the bushing, the water meter cannot accurately meter, the tip and the agate are easily abraded due to long-time friction, and therefore the metering accuracy and the service life of the water meter are affected.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a water gauge core with magnetic suspension structure through addding two annular magnet steels for the impeller is in the suspended state, has reduced the contact between top and the agate, thereby has significantly reduced the stiction between top and the agate, promotes the accuracy of water gauge flow especially low district flow, effectively prolongs the life of water gauge simultaneously. In order to achieve the above purpose, the utility model adopts the following technical scheme:

(II) technical scheme

The utility model provides a water gauge core with magnetic suspension structure, includes the core body, be equipped with the impeller box on the core body, impeller box bottom center is equipped with top, top is equipped with the impeller, be equipped with the impeller shaft on the impeller, the inside bush that is equipped with in impeller shaft below, the bush top is equipped with the agate, the bush cover is established apical, the terminal surface is embedded to have annular magnet steel one under the impeller shaft bottom, annular magnet steel one set is established outside the bush, impeller box bottom up end is embedded to have annular magnet steel two in the face, annular magnet steel two sets are established in apical outside, annular magnet ring one with two the same and homopolar settings of annular magnet steel size.

(III) advantageous effects

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, the utility model discloses an add two annular magnet steel and homopolar installations, like magnetic pole repulsion each other for the magnetic field repulsion force equals impeller self gravity, causes the impeller to be in the suspended state, has reduced the contact between top and the agate, thereby has significantly reduced the static friction between top and the agate, promotes the accuracy of water gauge flow especially low district flow, effectively prolongs the life of water gauge simultaneously.

Drawings

FIG. 1 is an overall cross-sectional view of the present invention;

fig. 2 is a partially enlarged schematic view of K in fig. 1.

The reference numbers illustrate:

1. core body 2, impeller box 21 and centre

3. Impeller 31, impeller shaft 32, and bush

33. Agate 4, annular magnetic steel I5 and annular magnetic steel II

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and fig. 2, a water meter movement with a magnetic suspension structure includes a movement body 1, the machine core body 1 is provided with an impeller box 2, the center of the bottom of the impeller box 1 is provided with a tip 21, an impeller 3 is arranged above the centre 21, an impeller shaft 31 is arranged on the impeller 3, a bush 32 is arranged inside the lower part of the impeller shaft 31, the top of the bush 32 is provided with agate 33, the bush 32 is sleeved on the tip 21, when no water enters, the tip 21 contacts with the agate 33 due to the action of the self-weight of the impeller 3, the lower end face of the bottom of the impeller shaft 31 is internally embedded with a first annular magnetic steel 4, the first annular magnetic steel 4 is sleeved outside the bushing 32, the upper end face of the bottom of the impeller box 31 is internally embedded with a second annular magnetic steel 5, the second annular magnetic steel 5 is sleeved outside the tip 21, and the first annular magnetic ring 4 and the second annular magnetic steel 5 are the same in size and in the same polarity.

The utility model discloses a design point lies in installing through addding two annular magnet steels and homopolar, and homopolar magnetic pole repels each other for magnetic field repulsion force equals impeller self gravity, causes the impeller to be in the suspended state, has reduced the contact between top and the agate, thereby the static friction between top and the agate that has significantly reduced promotes the accuracy of water gauge flow especially low district flow, effectively prolongs the life of water gauge simultaneously.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a water gauge core with magnetic suspension structure, includes the core body, be equipped with the impeller box on the core body, impeller box bottom center is equipped with top, top is equipped with the impeller, be equipped with the impeller shaft on the impeller, impeller shaft below inside is equipped with the bush, the bush top is equipped with the agate, the bush cover is established apical on, its characterized in that: the impeller is characterized in that a first annular magnetic steel is embedded in the lower end face of the bottom of the impeller shaft, the first annular magnetic steel is sleeved outside the bushing, a second annular magnetic steel is embedded in the upper end face of the bottom of the impeller box, the second annular magnetic steel is sleeved outside the tip, and the first annular magnetic steel and the second annular magnetic steel are the same in size and are arranged in the same polarity.