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Aerator

A kind of technology of aerator and frame, which is applied in application, fish farming, animal husbandry, etc. It can solve the problems that the three-phase AC synchronous motor cannot be started, the frequency converter is vulnerable, and the aerator is inconvenient to use and maintain.

Active Publication Date: 2021-07-02
LUTIAN MASCH CO LTD OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the aerator is driven by a three-phase AC synchronous motor, it is necessary to use an electronic frequency converter that can make the three-phase AC synchronous motor start normally. If the frequency converter is canceled and the three-phase AC synchronous motor is directly connected to power, the load will be connected after power-on The three-phase AC synchronous motor will not be able to start
[0004] Using a three-phase AC synchronous motor as the power of the aerator has many advantages, but the disadvantage is that an expensive frequency converter must be used. On the other hand, the frequency converter as an electronic device is also a vulnerable part, which affects the use and maintenance of the aerator Inconvenience

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0065] see Figure 30 and Figure 31 , the aerator 100 has a frame 2, a three-phase AC synchronous motor 1 and four floating bodies 3 fixed on the frame, and a load is arranged between the shaft of the water wheel 4 and the output shaft of the three-phase AC synchronous motor 1 Clutch 30. The three-phase AC synchronous motor 1 is directly 380 volts three-phase AC through a double-throw switch. When the double-throw switch is turned on, the three-phase AC synchronous motor 1 is energized, otherwise it is de-energized.

[0066] load clutch

[0067] In this example, the function of the load clutch 30 is: the three-phase AC synchronous motor 1 makes the water wheel 4 located in the medium with relatively small resistance—the air, that is, above the water surface at the initial stage of starting. It can be understood that if the absolute water wheel 4 Most of them are located above the water surface, and only a small part is located in the water, which can be regarded as above t...

no. 2 example

[0082] The similarities between this example and the previous example will not be repeated, and only the differences will be described in detail below.

[0083] The rotor shaft 15A adopts a solid shaft, the shaft end is connected to the input end of the load clutch, and the load clutch adopts an existing friction clutch or hydraulic clutch, and the output end of the friction clutch or hydraulic clutch is connected to the shaft of the water wheel 4, and the water wheel The normal state of 4 is underwater. When the water wheel 4 is at rest, the friction clutch or the hydraulic clutch is in disengagement state, and when the three-phase AC synchronous motor 1 is energized and started, the friction clutch or hydraulic clutch enters the coupling state again.

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Abstract

The invention relates to an aerator for fishery production, comprising a frame, a three-phase AC synchronous motor fixed on the frame and a water wheel driven by the three-phase AC synchronous motor. The three-phase AC synchronous motor is directly driven by the three-phase AC, and is connected with the water wheel through the load clutch. It has the advantage of eliminating the need for a frequency converter or a reducer. On the one hand, the manufacturing cost is relatively low, and on the other hand, wearing parts are eliminated.

Description

technical field [0001] The invention relates to fishery production equipment, in particular to an aerator. Background technique [0002] The traditional aerator generally uses a three-phase asynchronous motor to drive the impeller through a reduction box. In recent years, a three-phase AC synchronous motor is used to directly drive the impeller to work, but the three-phase AC synchronous motor needs to be controlled by a frequency converter. [0003] When the aerator is driven by a three-phase AC synchronous motor, it is necessary to use an electronic frequency converter that can make the three-phase AC synchronous motor start normally. If the frequency converter is canceled and the three-phase AC synchronous motor is directly connected to power, the load will be connected after power-on The three-phase AC synchronous motor cannot be started. [0004] Using a three-phase AC synchronous motor as the power of the aerator has many advantages, but the disadvantage is that an ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K63/04
CPCA01K63/042
Inventor 李伯卿
Owner LUTIAN MASCH CO LTD OF ZHUHAI