A magnetic speed governor capable of automatic speed change and its speed regulating method

An automatic speed change and automatic speed regulation technology, which is applied in the direction of electric components, electromechanical transmission devices, electrical components, etc., can solve the problems of large error, slow start, small torque of magnetic speed governor, etc., and achieve overload protection performance and starting performance Good, improve stability and durability, avoid the effect of vibration interference

CN102969867BInactive Publication Date: 2016-04-27JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-04-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of mechanical engineering transmission, particularly to a magnetic governor with automatic transmission ability and mainly used for transmission of power between a motor and a load in industries such as oil refining, chemicals, coal and power generation and for other devices. The magnetic governor is composed of a driving disc assembly, a driven disc assembly and an automatic speed regulation device assembly, wherein the driving disc assembly (1) is composed of a driving disc base I, a driving disc base and a permanent magnet; the driven disc assembly is composed of a driven disc base I, a driven disc base and a copper block; the automatic speed regulation device assembly presents symmetrical distribution along the axis and mainly comprises a micro motor, a single-start thread screw rod and an actiyator. The actiyator controls the micro motor to rotate, the driven disc base I and the driven disc base are enabled to perform opposite or contrary movement axially through gear drive and thread transmission, therefore the air gas thickness between the driven disc and the driving disc is changed, stepless automatic speed change is achieved through magnetic field coupling, and the application range of the magnetic governor is further extended.
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Description

technical field

[0001] The invention relates to the technical field of mechanical engineering transmission, in particular to a magnetic speed governor capable of automatic speed change, which is mainly used in power transmission systems between motors and loads in industries such as oil refining, chemical industry, coal, and power generation. Background technique

[0002] With the development of magnetic machinery, asynchronous magnetic governors are more and more widely used in oil refining, chemical industry and other industries. As a structure of magnetic machinery, asynchronous magnetic governors are more important than traditional mechanical couplings. During the transmission process, there is no mechanical contact, friction and wear, which realizes non-contact torque transmission and reduces the mechanical loss of transmission components. Therefore, in some areas of large torque vibration, magnetic governors have gradually replaced mechanical couplings. However, on the...

Examples

Embodiment 2

[0025] The working principle of embodiment 2: on the basis of embodiment 1, the copper block 5 in the driven plate assembly ② is replaced by the copper plate 21 cast on the yoke, and its working principle is the same as that of embodiment 1.