CN2788443Y - Magnetic asynchronous various speed gearing - Google Patents

Abstract

The utility model relates to a magnetic asynchronous speed-changing driving device, which is mainly composed of an outer rotating shell and an inner rotating core, wherein the outer rotating shell and the inner rotating core can rotate around the same axial line. An axle is fixed on the inner rotating core, and the inner rotating core is assembled with the outer rotating shell through the axle and a bearing to form a rotating body which can rotate around the same axial line, and the outer rotating shell and the inner rotating core can rotate correspondingly. The inner rotating core is used to output power, and the outer rotating shell is used to input the power. An inner cylindrical surface is composed of a plurality of high-magnetism magnets of which the sizes are the same, the number of the magnets is an even number, and the magnets are provided uniformly with the axial line. The polarities of the symmetrical magnets are opposite, and the polarities of the adjacent magnets are opposite. In this way, 2N magnetic poles are formed by 2N magnets (N is a natural number). The output synchronous rotating speed is 1/N of the input rotating speed, therefore the purpose of variable speed driving is realized. Compared with traditional gear speed-changing devices, the utility model has the advantages of simple structure, small starting impact force, gear oil free and fundamental maintenance free.

Description

The asynchronous variable speed drive of a kind of magnetic force

Technical field

The utility model relates to a kind of device of speed change transferring power, relates in particular to the asynchronous variable speed drive of a kind of magnetic force.

Background technology

Present widely used gear graduation drive apparatus, the manufacturing process complexity, the cost height, bigger impulsive force is arranged during starting device, also need gear oil, maintenance work requires high, weak point in view of present gear drive equipment existence, impulsive force is little when the utlity model has starting device, and is simple in structure, non-maintaining substantially advantage.

Summary of the invention

The purpose of this utility model is in order to overcome the defective of prior art, a kind of device that can be used for the speed change transferring power to be provided, can be applicable to speed stability is not had the equipment or the occasion of strict demand.

The technical solution of the utility model is a kind of device that utilizes the asynchronous speed change transferring power of magnetic force, this device mainly contains and can constitute around the outer transcapsidation and the interior commentaries on classics core of same axis rotation, described outer transcapsidation has bearing pedestal, change on the core in described and fixed one, the interior core that changes is by axle and bearing and outer transcapsidation combination, constitute one can around the rotation of same axis and outside transcapsidation and the relatively turnable rotary body of interior commentaries on classics core, the cage rotor that changes core construct and three-phase AC asynchronous motor in described is basic identical, draw materials conveniently, be used for outputting power, described outer transcapsidation links to each other with power source, be used to import power, its inner cylinder face is made of the identical high magnetic force magnet of polylith size, magnet becomes even number to be symmetrical in axis evenly to distribute, the magnet polarity of the axis that is symmetrical in is opposite, adjacent magnet opposite in diametric(al) polarity, like this, 2N piece magnet just forms 2N magnetic pole (N is a natural number), the synchronous speed that makes output is the 1/N of input speed, actual output is a little less than synchronous speed, thus the purpose of realization speed change transmission.

Described outer transcapsidation and interior commentaries on classics mandrel are respectively equipped with the hookup that is used for transferring power.

Press the asynchronous variable speed drive of a kind of magnetic force that such scheme is made, impulsive force is little when having starting device, and is simple in structure, non-maintaining substantially advantage.

Description of drawings

Fig. 1: embodiment front view of the present utility model

Fig. 2: embodiment left view of the present utility model

Fig. 3: embodiment A-A of the present utility model is to profile (is example with 4 magnets)

Specific embodiments

Below in conjunction with Fig. 1 embodiment of the present utility model is described in detail.

The asynchronous variable speed drive of a kind of magnetic force comprises outer transcapsidation 1, interior commentaries on classics core 2, is fixed in interior axle 3, bearing and shaft coupling 4 and the shaft coupling 5 that changes on the core.Described outer transcapsidation 1 has bearing pedestal, change on the core 2 in described and fixed one 3, the interior core that changes is by axle 3 and bearing and outer transcapsidation 1 combination, constituting one can be around the rotation of same axis and outer transcapsidation 1 and interior commentaries on classics core 2 relatively turnable rotary body, changeing core 2 in described links to each other with stressed equipment by shaft coupling 5, be used for outputting power and give stressed equipment, described outer transcapsidation 1 links to each other with power source by shaft coupling 4, be used to import power, its inner cylinder face is made of the identical high magnetic force magnet 6 of polylith size, 6 one-tenth even numbers of magnet are symmetrical in axis and evenly distribute, and magnet 6 polarity of the axis that is symmetrical in are opposite, adjacent magnet 6 opposite in diametric(al) polarity, like this, 2N piece magnet just forms 2N magnetic pole (N is a natural number), and the synchronous speed that makes output is the 1/N of input speed, and actual output is a little less than synchronous speed.Embodiment of the present utility model, to use the individual magnet 6 of 4 (being N=2) to be example, described 4 magnets 6 are according to above-mentioned regular distribution, form 4 magnetic poles, the rotating speed of supposing power source is 3000 rev/mins, the rotating speed of the outer transcapsidation 1 that links to each other with power source is 3000 rev/mins, thereby form a rotating magnetic field with 4 magnetic poles, change core 2 in described and in above-mentioned rotating magnetic field, make cutting magnetic line movement, with above-mentioned rotating magnetic field results of interaction, making the described interior synchronous speed that changes core 2 outputs is 1500 rev/mins, and actual speed is between 1400-1450 rev/min, thus the purpose of realization speed change transmission.

Claims (3)

1, the asynchronous variable speed drive of a kind of magnetic force, it is characterized in that being distributed with in the outer transcapsidation polylith magnet, change core in described by axle and bearing and outer transcapsidation combination, constituting one can be around the rotation of same axis and outer transcapsidation and the relatively turnable rotary body of interior commentaries on classics core, and the cage rotor of described interior commentaries on classics core construct and three-phase AC asynchronous motor is identical.

2, the asynchronous variable speed drive of a kind of magnetic force according to claim 1 is characterized in that described interior commentaries on classics core is a phase-wound rotor.

3, the asynchronous variable speed drive of a kind of magnetic force according to claim 1, the magnetic force that it is characterized in that described magnet is electromagnetic force.