Magnetic coupling type aerator

Abstract

The utility model relates to a magnetic coupling type aerator which comprises a floating body, a driving motor and a shaft seat are arranged on the floating body, a paddle shaft is rotatably arranged on the shaft seat, paddles capable of partially entering water are fixedly arranged on the paddle shaft, and the paddle shaft is in transmission connection with a motor shaft of the driving motor through a magnetic coupler. The magnetic coupler provided by the utility model can provide buffering for the motor, so that the motor is prevented from being damaged due to overlarge load of the paddle.

Description

Technical Field

[0001] The utility model relates to a waterwheel type aerator, in particular to a motor and a blade connection structure of the waterwheel type aerator. Background Art

[0002] Conventional waterwheel-type aerators all fix the blades directly on the motor shaft of the motor. Since there is no buffer structure between the blades and the motor, the motor may be damaged when the blades are entangled by foreign objects in the water or when the load is too large for other reasons. Utility Model Content

[0003] The utility model aims to improve the above-mentioned deficiencies of the existing waterwheel type aerator.

[0004] The utility model adopts the following technical solutions:

[0005] A magnetic coupling aerator comprises a floating body, on which a driving motor and a shaft seat are arranged, on which a paddle shaft is rotatably arranged, on which a paddle blade capable of partially entering water is fixed, and the paddle shaft is connected to a motor shaft of the driving motor through a magnetic coupling.

[0006] As a preferred solution, the magnetic coupler includes a main rotor fixedly mounted on the end of the motor shaft and an auxiliary rotor fixedly mounted on the end of the pulp shaft. The main rotor and the auxiliary rotor are arranged at a distance and magnetically attractive magnets are fixed on their opposite surfaces.

[0007] As a preferred solution, the main rotor is sleeved on the motor shaft through a shaft tube provided on the back side thereof and is fixed to the motor shaft through locking screws.

[0008] As a preferred solution, the auxiliary rotor is sleeved on the propeller shaft through a shaft tube provided on the back side thereof and is fixed to the propeller shaft through locking screws.

[0009] As a preferred solution, the surfaces of the main rotor and the auxiliary rotor are both covered with a waterproof rubber layer.

[0010] The driving motor and the blades of the utility model are connected through a magnetic coupling transmission, and the magnetic coupling can provide a buffer for the motor to avoid damage to the motor due to excessive load on the blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0012] Figure 2 This is a schematic diagram of the magnetic coupler connection structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] like Figure 1-2 The magnetic coupling aerator shown comprises two floating boats 1.1 arranged side by side and spaced apart along the X axis. The two floating boats 1.1 are fixedly connected to each other via a connecting plate 1.2 to form a floating body 1.

[0015] A driving motor 2 and two shaft seats 3 are arranged on the floating body 1 along the X-axis direction. The driving motor 2 is centrally arranged on the floating body 1 and fixedly installed on the top of the connecting plate 1.2. The two shaft seats 3 are respectively fixedly installed on the top of the floating boat 1.1 on both sides of the driving motor 2.

[0016] The driving motor 2 is a double-shaft motor and the two ends of its motor shaft 2.1 extend laterally toward two shaft seats 3, respectively. A propeller shaft 4 which is in the same straight line as the motor shaft 2.1 is rotatably provided on the two shaft seats 3, and each propeller shaft 4 is fixed with a propeller blade 5 which is exposed outside the side of the floating vessel 1.1 and can partially enter the water.

[0017] Both propeller shafts 4 are connected to the motor shaft 2.1 through a magnetic coupler 6. The magnetic coupler 6 includes a main rotor 6.1 fixedly mounted on the end of the motor shaft 2.1 and an auxiliary rotor 6.2 fixedly mounted on the end of the propeller shaft 4. The main rotor 6.1 and the auxiliary rotor 6.2 are arranged at a distance from each other and magnetically attractive magnets are fixed on their opposite surfaces.

[0018] In order to facilitate the adjustment of the air gap between the main rotor 6.1 and the auxiliary rotor 6.2, the main rotor 6.1 is sleeved on the motor shaft 2.1 through the shaft tube provided on the back thereof and the motor shaft 2.1 is fixed by the locking screws, and the auxiliary rotor 6.2 is sleeved on the propeller shaft 4 through the shaft tube provided on the back thereof and fixed to the propeller shaft 4 by the locking screws.

[0019] In order to prevent rust and prolong the service life, the surfaces of the main rotor 6.1 and the auxiliary rotor 6.2 of the magnetic coupling 6 are both coated with a waterproof rubber layer 6.3.

[0020] It must be pointed out that the floating body 1 may consist of more than two floating vessels 1.1.

[0021] When in use, the motor shaft 2.1 drives the main rotor 6.1 to rotate, the main rotor 6.1 drives the auxiliary rotor 6.2 to rotate, and the auxiliary rotor 6.2 drives the propeller shaft 4 and the blade 5 to rotate. If the blade 5 is entangled by foreign objects in the water, or due to other reasons, the load on the auxiliary rotor 6.2 is greater than the rated transmission torque between the auxiliary rotor 6.2 and the main rotor 6.1, the main rotor 6.1 and the auxiliary rotor 6.2 will slip, unloading the excess load, and the excess load will not be transmitted to the drive motor 2, thereby protecting the drive motor 2.

[0022] By adjusting the position of the main rotor 6.1 on the motor shaft 2.1 and / or adjusting the position of the auxiliary rotor 6.2 on the propeller shaft 4, the air gap of the magnetic coupling 6 and its rated transmission torque can be adjusted.

Claims

1. A magnetic coupling aerator, comprising a floating body, characterized in that: A driving motor and a shaft seat are provided on the floating body. A paddle shaft is rotatably provided on the shaft seat. A paddle blade capable of partially entering water is fixed on the paddle shaft. The paddle shaft is connected to the motor shaft of the driving motor through a magnetic coupling.

2. A magnetic coupling aerator according to claim 1, characterized in that: The magnetic coupler comprises a main rotor fixedly mounted on the end of the motor shaft and an auxiliary rotor fixedly mounted on the end of the pulp shaft. The main rotor and the auxiliary rotor are arranged at a distance and magnets that attract each other are arranged on their opposite surfaces.

3. A magnetic coupling aerator according to claim 2, characterized in that: The main rotor is sleeved on the motor shaft through a shaft tube arranged on the back side thereof and is fixed to the motor shaft through locking screws.

4. A magnetic coupling aerator according to claim 2, characterized in that: The auxiliary rotor is sleeved on the propeller shaft through a shaft tube arranged on the back side thereof and is fixed to the propeller shaft through locking screws.

5. A magnetic coupling aerator according to any one of claims 2 to 4, characterized in that: The surfaces of the main rotor and the auxiliary rotor are both covered with a waterproof rubber layer.

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