CN206294017U

CN206294017U - A kind of aerator

Info

Publication number: CN206294017U
Application number: CN201621370279.3U
Authority: CN
Inventors: 范翠萍
Original assignee: Zhuhai Jun Hua Electronic Technology Co Ltd
Current assignee: Zhuhai Jun Hua Electronic Technology Co Ltd
Priority date: 2016-12-13
Filing date: 2016-12-13
Publication date: 2017-06-30
Anticipated expiration: 2026-12-13

Abstract

The utility model discloses a kind of aerator, including impeller, drive the motor of wheel rotation, the floating body of buoyancy be provided for whole device, it is characterised in that：The motor is direct current external rotor electric machine, and the impeller is fixedly connected with the outer rotor of the motor.The utility model provides a kind of aerator, using direct current external rotor electric machine, and impeller is fixed on outer rotor, extra gearbox speed reduction mechanism is not needed, the maintenance frequency of equipment is reduced, the stability of aerator is improve, and the relatively existing inner rotor motor power of used motor is higher, power consumption is relatively low, greatly reduces the consumption of electric energy, reduces power cost.

Description

A kind of aerator

Technical field

The utility model is related to a kind of aerator.

Background technology

At present, aquaculture development is rapid, and for aquaculture, dissolving oxygenation is that can aquatic products survive and control to grow The key of tendency, so aquaculture generally configures a number of aerator or pump in pond.Existing aerator mainly includes Cursory, impeller, backing roll, motor and decelerator, decelerator are installed on motor, and impeller is installed on decelerator, and motor drives Decelerator, decelerator impeller, backing roll is provided with no less than three, and backing roll two ends are installed with decelerator and float respectively Ball, backing roll circular array shape is arranged at around decelerator.The motor of existing aerator uses internal rotor induction machine, carries Casing, end cap and projecting shaft, in order to be able to drive high-flow impeller, it is necessary to configure decelerator, general speed reducing ratio is 1：10, motor shaft Stretch and combined as a whole with decelerator main shaft, decelerator main shaft is connected with impeller again, and such general diameter of impeller is very big, in pole Enough flows can be also provided under the slow-speed of revolution.

But existing aerator relies on gearbox speed reduction, drive high pulling torque to load with this, cause system gear often occur Abrasion is stuck or motor burns winding, and aerator burst is shut down, and causes raiser to suffer heavy losses；In addition, machine driving loss is big, Internal rotor induction machine efficiency is not also high simultaneously, and power dissipation ratio is larger, causes the raising of aquaculture grid electricity fee cost.

Utility model content

The utility model aims to solve the problem that above-mentioned mentioned technical problem, there is provided a kind of aerator, using direct current outer rotor Motor, and impeller is fixed on outer rotor, it is not necessary to extra gearbox speed reduction mechanism, the maintenance frequency of equipment is reduced, The stability of aerator is improve, and the relatively existing inner rotor motor power of used motor is higher, power consumption is relatively low, greatly reduces The consumption of electric energy, reduces power cost.

The utility model solves the technical scheme that its technical problem used：

A kind of aerator, including impeller, drive the motor of wheel rotation, the floating body of buoyancy is provided for whole device, it is described Motor is direct current external rotor electric machine, and the impeller is fixedly connected with the outer rotor of the motor.

Preferably, the motor is DC permanent-magnetic brushless external rotor electric machine.

Further, the motor includes outer rotor, and the outer rotor center is fixedly installed axle, and the axle is provided with axle Hold, the bearing periphery is set with stator.

Further, the outer rotor is provided with bottom surface, and the axle is installed on bottom center, and the axle is perpendicular to bottom surface.

Further, the motor stator slot number is more than or equal to 48 grooves, and rotor number of poles is more than or equal to 60 poles.

Preferably, the impeller is bolted on the outer surface of outer rotor.

Further, the stator upper surface is provided with drive control box, and the drive control box is provided with VFC Device.

Further, the floating body includes cursory and is used to install cursory backing roll, and the drive control box periphery is Even to be provided with three mounting holes, it is cursory that described backing roll one end is provided with, and the other end is flush-mounted in the mounting hole.

Further, it is described cursory to be packed for foam or inflation shape glue.

The beneficial effects of the utility model are：The utility model provides a kind of aerator, using direct current external rotor electric machine, and Impeller is fixed on outer rotor, it is not necessary to extra gearbox speed reduction mechanism, reduces the maintenance frequency of equipment, improve increasing The stability of oxygen machine, and the relatively existing inner rotor motor power of used motor is higher, power consumption is relatively low, greatly reduces electric energy Consumption, reduces power cost.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is the utility model mounting structure schematic diagram.

Specific embodiment

Reference picture 1, a kind of aerator of the present utility model, including impeller 1, drive motor that impeller 1 rotates, be whole dress The floating body 2 that buoyancy is provided is put, the motor is direct current external rotor electric machine, and the impeller 1 is fixed with the outer rotor 3 of the motor and connected Connect.

Preferably, the motor is DC permanent-magnetic brushless external rotor electric machine.Its efficiency of permanent-magnet brushless DC electric machine is than common Induction machine efficiency high, by taking the 1.5KW for commonly using as an example, permanent-magnet brushless DC electric machine efficiency is up to 90%, and GB 18613-2012 《Middle-size and small-size threephase asynchronous energy efficiency market and efficiency grade》In common induction machine be up to 85.3%, single motor effect Rate lifting 5%, actually due to the mechanical loss of gear-box, its efficiency, can be notable using permanent-magnet brushless DC electric machine less than 70% Improve operating efficiency.

Further, the motor includes outer rotor 3, and the center of the outer rotor 3 is fixedly installed axle 4, and the axle 4 is installed There is bearing, the bearing periphery is set with stator 5.Specifically, the outer rotor 3 is provided with bottom surface, the axle 4 is welded in bottom surface Center, the axle 4 is perpendicular to bottom surface.The welding is a kind of preferred embodiment of the present embodiment, also can be using bolt etc. Other connected modes.

Further, the slot number of the motor stator 5 is more than or equal to 48 grooves, and rotor number of poles is more than or equal to 60 poles.This reality The arranging scheme using the pole of 572 groove rotor of stator 60 in example is applied, this is optimum implementation, in other embodiments, can also be adopted It is excellent with scheme with the pole of 572 groove rotor of stator 66.

Preferably, the impeller 1 is bolted on the outer surface of outer rotor 3.Bolt fastening structure is relatively simple, real It is strong with property, also mode other can be detachably connected using buckle etc. in other embodiments.

Further, the upper surface of the stator 5 is provided with drive control box 6, and the drive control box 6 is provided with frequency conversion control Device processed, drive control box 6 can be by frequency conversion come the rotation status of controlled motor.In other embodiments, drive control box 6 also may be used It is installed on the outside of device.

Further, the floating body 2 includes cursory 2-1 and is used to install the backing roll 2-2 of cursory 2-1, the driving control The periphery of box processed 6 is evenly arranged with three mounting holes, and described backing roll 2-2 one end is provided with cursory 2-1, and the other end is flush-mounted in described In mounting hole.Specifically, the cursory 2-1 is to be packed for foam or inflation shape glue.

The utility model provides a kind of aerator, using direct current external rotor electric machine, and impeller 1 is fixed on outer rotor 3, Extra gearbox speed reduction mechanism is not needed, the maintenance frequency of equipment is reduced, the stability of aerator is improve, and is used The relatively existing inner rotor motor power of motor is higher, and power consumption is relatively low, greatly reduces the consumption of electric energy, reduces power cost.

Above concrete structure and sized data are that preferred embodiment of the present utility model is illustrated, but this reality The embodiment is not limited to new creation, those of ordinary skill in the art are in the premise without prejudice to the utility model spirit A variety of equivalent variations or replacements can be also made down, and these equivalent deformations or replacement are all contained in the application claim and are limited In fixed scope.

Claims

1. a kind of aerator, including impeller（1）, drive impeller（1）The motor of rotation, the floating body that buoyancy is provided for whole device （2）, it is characterised in that：The motor is direct current external rotor electric machine, the impeller（1）With the outer rotor of the motor（3）It is fixed Connection.

2. a kind of aerator according to claim 1, it is characterised in that：The motor is DC permanent-magnetic brushless external rotor electric Machine.

3. a kind of aerator according to claim 2, it is characterised in that：The motor includes outer rotor（3）, described outer turn Son（3）Center is fixedly installed axle（4）, the axle（4）Bearing is installed, the bearing periphery is set with stator（5）.

4. a kind of aerator according to claim 3, it is characterised in that：The outer rotor（3）It is provided with bottom surface, the axle （4）It is installed on bottom center, the axle（4）Perpendicular to bottom surface.

5. a kind of aerator according to claim 2, it is characterised in that：The motor stator（5）Slot number is more than or equal to 48 grooves, rotor number of poles is more than or equal to 60 poles.

6. a kind of aerator according to claim 1, it is characterised in that：The impeller（1）It is bolted on outer turning Son（3）Outer surface.

7. a kind of aerator according to claim 3, it is characterised in that：The stator（5）Upper surface is provided with driving control Box processed（6）, the drive control box（6）It is provided with frequency-variable controller.

8. a kind of aerator according to claim 7, it is characterised in that：The floating body（2）Including cursory（2-1）Be used to It is cursory to install（2-1）Backing roll（2-2）, the drive control box（6）Periphery is evenly arranged with three mounting holes, the supporting Roller（2-2）One end is provided with cursory（2-1）, the other end is flush-mounted in the mounting hole.

9. a kind of aerator according to claim 8, it is characterised in that：It is described cursory（2-1）To be packed for foam or filling Gas intumescent plastic cement.