Speed regulation asynchronous magnetic coupler with adjustable radial air gap

Abstract

The invention relates to the technical field of mechanical engineering transmission, and in particular relates to a speed regulation asynchronous magnetic coupler with an adjustable radial air gap. In the speed regulation asynchronous magnetic coupler, the radial movement of active card bodies which are uniformly distributed on a disc body is utilized to realize radial shift-in or shift-out of a permanent magnet, accurately adjust the gas gap length between the permanent magnet and a conducting bar, change the acting force of an air-gap field and realize the outputs of different rotation speeds and torques, thereby realizing purpose of stepless speed change. The speed regulation asynchronous magnetic coupler provided by the invention is mainly used between a motor and a load in industries such as oil refining, chemical industry, coal and electricity generation, or used in power transmission devices of other related mechanisms.

Description

technical field

[0001] The invention relates to the technical field of mechanical engineering transmission, in particular to a speed-regulating asynchronous magnetic coupling with adjustable radial air gap, which is mainly used for the connection between motors and loads in oil refining, chemical industry, coal, power generation and other industries or other related mechanisms in the power transmission unit. Background technique

[0002] In the field of mechanical engineering transmission technology, couplings are frequently used components in the power transmission process of mechanical systems. In traditional mechanical transmission systems, rigid mechanical methods are usually used to connect the driving shaft and driven shaft in different mechanisms. , to transmit torque and movement; however, the transmission system through mechanical connection is prone to failure; in addition, due to the mechanical connection, the centering accuracy between devices is very high, which...

Examples

Embodiment 1

[0032] The working principle of embodiment 1: when the outer rotor rotates with the motor, the permanent magnet 5 embedded in the bottom groove of the movable card body 4 will generate an alternating magnetic field in the air gap whose size and direction change according to a certain law, according to According to Lenz's law, when the guide bar 11 cuts the magnetic force line, an induced current will be generated. This current interacts with the alternating magnetic field, so that the inner rotor receives an electromagnetic torque in the same direction as the alternating magnetic field, so that the inner rotor rotates. When the wrench 21 rotates any one of the four small bevel gears 17 on the circumference clockwise, the large bevel gear 18 in the disc body 14 rotates counterclockwise, and the plane thread 15 on the back side also rotates counterclockwise, thereby driving the movable card body 4 move radially toward the center at the same time, the length of the air gap between...

Embodiment 2

[0033] The working principle of embodiment 2: on the basis of embodiment 1, the guide bar 11 in the inner rotor assembly is replaced with the copper skin 23 wrapped on the inner solid rotor, when the wrench 21 turns clockwise the four Any one of the small bevel gears 17, the large bevel gear 18 in the disc body 14 rotates counterclockwise, and the plane thread 15 on its back side also rotates counterclockwise, driving the movable card body 4 to move radially toward the center of the disc body 14 at the same time. , the length of the air gap between the permanent magnet 5 and the outer copper skin 23 becomes smaller, the force of the air gap magnetic field becomes larger, and the output torque becomes larger; During any one, the large bevel gear 18 rotates clockwise, and the plane thread 15 on its back side also rotates clockwise, driving the movable card body 4 away from the center of the disc body 14 at the same time, the air gap length between the permanent magnet 5 and the o...

technical field

[0001] The invention relates to the technical field of mechanical engineering transmission, in particular to a speed-regulating asynchronous magnetic coupling with adjustable radial air gap, which is mainly used for the connection between motors and loads in oil refining, chemical industry, coal, power generation and other industries or other related mechanisms in the power transmission unit. Background technique

[0002] In the field of mechanical engineering transmission technology, couplings are frequently used components in the power transmission process of mechanical systems. In traditional mechanical transmission systems, rigid mechanical methods are usually used to connect the driving shaft and driven shaft in different mechanisms. , to transmit torque and movement; however, the transmission system through mechanical connection is prone to failure; in addition, due to the mechanical connection, the centering accuracy between devices is very high, which...

Examples

Embodiment 1

[0032] The working principle of embodiment 1: when the outer rotor rotates with the motor, the permanent magnet 5 embedded in the bottom groove of the movable card body 4 will generate an alternating magnetic field in the air gap whose size and direction change according to a certain law, according to According to Lenz's law, when the guide bar 11 cuts the magnetic force line, an induced current will be generated. This current interacts with the alternating magnetic field, so that the inner rotor receives an electromagnetic torque in the same direction as the alternating magnetic field, so that the inner rotor rotates. When the wrench 21 rotates any one of the four small bevel gears 17 on the circumference clockwise, the large bevel gear 18 in the disc body 14 rotates counterclockwise, and the plane thread 15 on the back side also rotates counterclockwise, thereby driving the movable card body 4 move radially toward the center at the same time, the length of the air gap between...

Embodiment 2

[0033] The working principle of embodiment 2: on the basis of embodiment 1, the guide bar 11 in the inner rotor assembly is replaced with the copper skin 23 wrapped on the inner solid rotor, when the wrench 21 turns clockwise the four Any one of the small bevel gears 17, the large bevel gear 18 in the disc body 14 rotates counterclockwise, and the plane thread 15 on its back side also rotates counterclockwise, driving the movable card body 4 to move radially toward the center of the disc body 14 at the same time. , the length of the air gap between the permanent magnet 5 and the outer copper skin 23 becomes smaller, the force of the air gap magnetic field becomes larger, and the output torque becomes larger; During any one, the large bevel gear 18 rotates clockwise, and the plane thread 15 on its back side also rotates clockwise, driving the movable card body 4 away from the center of the disc body 14 at the same time, the air gap length between the permanent magnet 5 and the o...

Images