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Permanent magnet coupling stepless speed adjusting device for high-power and high-rotating-speed motor

A technology of permanent magnet coupling and stepless speed regulation, applied in transmission, gear transmission, mechanical equipment, etc., can solve the problems of large heating of conductor rotor, decrease in proportion, waste of energy, etc. The effect of reducing heat generation

Inactive Publication Date: 2016-04-27
SUZHOU CHAOCHUANG ENERGY SAVING TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the large loss of spiral flow, the conductor rotor generates a lot of heat, wasting energy
However, due to the characteristics of water pumps and fans, the flow rate decreases proportionally when the speed decreases, the head decreases by square times, and the power decreases by cubic times.
Although the permanent magnetic coupler is an energy-saving product, its high heat generation limits the use of this product, and it is not suitable for use in high-power and high-speed applications.

Method used

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  • Permanent magnet coupling stepless speed adjusting device for high-power and high-rotating-speed motor

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Embodiment Construction

[0010] Such as figure 1 The shown invention includes an output shaft (1), a stator (2) and a rotor (3) of a permanent magnet synchronous motor, an NGW planetary mechanism (4), and an input shaft (5).

[0011] The structure of the present invention cooperates with the electric control switch and can be operated by addition or subtraction according to the needs of working conditions. Addition operation is a low-voltage frequency converter to adjust the speed of the permanent magnet synchronous motor. Running by subtraction is to use the inverter to feed electricity back to the grid, and the speed can be adjusted by controlling the feedback power.

[0012] The structure of this embodiment uses the NGW planetary mechanism with a speed ratio of 1:3 to 6, uses the sun gear output of the planetary mechanism, and connects the main motor and the permanent magnet synchronous motor with the planetary carrier and the internal gear respectively, for addition or subtraction input, suitable...

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Abstract

The invention discloses a permanent magnet coupling stepless speed adjusting device for a high-power and high-rotating-speed motor. The device comprises an input shaft, a permanent magnet synchronous motor, a NGW planetary mechanism and an output shaft. The device reduces the calorific value of a permanent magnet coupling, and is suitable for a high-power motor. The device can return vortex current heat energy in the permanent magnet coupling to a power grid, so that the energy utilization rate is further improved, and the energy saving effect is prominent.

Description

technical field [0001] The invention relates to the field of motor transmission, in particular to a permanent magnetic coupling shaft coupling. Background technique [0002] With the rapid improvement of the performance of permanent magnet materials, permanent magnet coupling transmission technology has a good application prospect in many fields such as industry and military. The permanent magnetic coupling coupling realizes the torque transmission without mechanical connection between the motor and the load through a simple mechanical structure. Compared with the traditional contact transmission mechanism, the permanent magnetic coupling coupling is based on the frictionless design. With the help of the magnetic force of the permanent magnet, the transmission parts are joined and separated. There is no mechanical contact between the two, and a certain axis offset is allowed, which can effectively eliminate the vibration transmission between the motor and the load, and reali...

Claims

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Application Information

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IPC IPC(8): F16H3/44
CPCF16H3/44
Inventor 王慧钱金涛
Owner SUZHOU CHAOCHUANG ENERGY SAVING TECH CO LTD
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