CN101257241A

CN101257241A - Novel single windings double-speed 8/12 pole three phase asynchronous motor

Info

Publication number: CN101257241A
Application number: CNA200710193166XA
Authority: CN
Inventors: 陈怀景; 陈玉峰; 陈玉中
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-17
Filing date: 2007-12-17
Publication date: 2008-09-03

Abstract

A novel single winding double-speed 8/12 poles three phase asynchronous motor, which is a special motor, includes Y, Y2, YD series 8/12 poles single winding double-speed three phase asynchronous motor and derivative series 8/12 poles three phase asynchronous motor, whose synchronous speed is 750/500 r/min. The motor adopts an opposite direction method and irregularly distributed winding to change or update the existing motor, whose winding connection process is that: pole-changing winding adopts a 2Y/delta connection, which is 2Y connection in high speed with the asynchronous rotating speed of 740 r/min, and is delta connection (that is, 12 poles) with the asynchronous rotating speed of 480 r/min; the winding connection process can be designed as a2Y/Y connection (that is, 8/12 poles), and the turning of the pole number can be designed in the same direction or in inverse direction based upon requirement.

Description

A kind of novel simplex winding double speed 8/12 pole three phase asynchronous motor

One, technical field:

The present invention relates to a kind of motor, especially a kind of novel simplex winding double speed 8/12 pole three phase asynchronous motor, (comprising: Y, Y2, YD series 8/12 simplex winding double speed and subseries 8/12 pole three phase asynchronous motor).

Two, background technology:

Motor is a kind of machinery that electric energy is converted to mechanical rotation, and existing seven, eight standard series of original simplex winding two-speed motor are available, but for 8/12 required pole motor of special industry, the domestic blank that is still.

Particularly in oilfield exploitation, early stage 6 utmost points that are suitable for or 8 pole motors can not adapt to the production needs of most of oil wells owing to be single speed, the stripper well that increases year by year for quantity especially, and original motor can't guarantee ordinary production; For the high heavy oil wells exploitation of content of wax gel content, original motor speed is higher, not only causes the invalid wearing and tearing of pumping unit but also wasted electric energy.

Therefore the stripper well that successively decreases year by year for output, take out for the well, need can constantly adjust the parameters such as jig frequency of oil pumper to improve pump efficiency, reduce wearing and tearing, to reduce the correlative charges that is produced because of the motor replacing according to the variation of oil well liquid level by a kind of double-speed motor especially, motor and oil pumper are mated more, guaranteeing normally to go out under the oil condition saves energy.And present alternative double-speed motor has only 6/12 utmost point, and 12 utmost point low speed can use, the later stage in the too high incompatibility oil field exploitation but 6 utmost point rotating speeds seem, and optimal accent ginseng motor is two kinds of rotating speeds of 8/12 utmost point.

Three, summary of the invention:

The purpose of this invention is to provide a kind of novel simplex winding double speed 8/12 pole three phase asynchronous motor, it is the relation that is inversely proportional to according to electromotor series and rotating speed, adopt the method for pole changing, produce or make former 6 utmost points and 8 pole motors into 8/12 utmost point simplex winding two-speed motor, produce needs to adapt to better.

The object of the present invention is achieved like this, and it is to adopt opposite direction method and informal distributed winding that original motor has been carried out transforming or making and upgrade.

The winding connection method: variable-pole winding adopts 2Y/ Δ connection equally, is the 2Y connection during high speed, and its asynchronous speed is 740r/min; During low speed the Δ connection, i.e. 12 utmost points, its asynchronous speed is 480r/min.

The present invention has the following advantages in field use at present: time-of-use tariffs that 1, can the reasonable use electric power system take out between realizing not shutting down that (connect daytime is 12 to take out extremely slowly, connect night be 8 be exceedingly fast take out), both accomplished reasonable energy, avoiding apex filling vale has guaranteed the stable of output again, has reduced production cost; 2, ginseng can by control device, be realized transferring automatically according to the oil production technology requirement in the oil field, replaced the replacing motor, changed belt pulley, means such as dress decelerator reach the conventional way of transferring the ginseng purpose, so both reduced producing cost, reduced labour intensity, improved again that machine is adopted efficient and rate when driving a well; 3, in field produces, a motor, two kinds of rotating speeds, two on a top is more suitable for current machine and adopts the requirement of motor and transfer the ginseng needs, has increased new varieties for China's double-speed motor simultaneously; Though 4 frequency controls are also being applied, because of it costs an arm and a leg, a frequency conversion tank is also more expensive than the price of several machines, and maintenance difficulty is big, and often therefore influence is produced.And the present invention is simple to operate, grasps easily, and is cheap, easy to maintenance, easy to utilize.

Four, description of drawings:

Fig. 1 is a kind of connection principle expanded view of novel simplex winding double speed 8/12 pole three phase asynchronous motor

Fig. 2 is a kind of connection principle reduced graph of novel simplex winding double speed 8/12 pole three phase asynchronous motor

Fig. 3 is a kind of 8 utmost point 2Y winding diagrams of novel simplex winding double speed 8/12 pole three phase asynchronous motor

Fig. 4 is a kind of 12 utmost point Δ winding diagrams of novel simplex winding double speed 8/12 pole three phase asynchronous motor

Five, embodiment:

In Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of winding connection method of novel simplex winding double speed 8/12 pole three phase asynchronous motor, variable-pole winding adopt 2Y/ Δ connection, are 8 utmost point 2Y connections during high speed, and its asynchronous speed is 740r/min; During low speed the Δ connection, i.e. 12 utmost points, its asynchronous speed is 480r/min; Simplex winding double speed 8/12 utmost point; Comprise: 8/12 simplex winding double speed three phase asynchronous motor of Y, Y2, YD series and subseries 8/12 pole three phase asynchronous motor, its synchronous speed is: 750/500r/min; Winding connection method, variable-pole winding adopt 2Y/ Δ connection, are 8 utmost point 2Y connections during high speed, and its asynchronous speed is 740r/min; During low speed the Δ connection, i.e. 12 utmost points, its asynchronous speed is 480r/min; Also can be designed to the 2Y/Y connection as required, be 8 utmost point 2Y connections during high speed, and its asynchronous speed is 740r/min; During low speed the Y connection, i.e. 12 utmost points, its asynchronous speed is 480r/min.The turning to of its two kinds of numbers of poles promptly can be in the same way, and design also can be reverse design; The simplex winding double speed, promptly motor only needs can realize two kinds of rotating speeds, 740r/min and 480r/min by the mode of connection that changes outside 6 binding posts once the cover stator winding.

Claims

1, a kind of novel simplex winding double speed 8/12 pole three phase asynchronous motor is characterized in that: simplex winding double speed 8/12 utmost point; Comprise: 8/12 simplex winding double speed three phase asynchronous motor of Y, Y2, YD series and subseries 8/12 pole three phase asynchronous motor, its synchronous speed is: 750/500r/min; Winding connection method, variable-pole winding adopt 2Y/ Δ connection, are 8 utmost point 2Y connections during high speed, and its asynchronous speed is 740r/min; During low speed the Δ connection, i.e. 12 utmost points, its asynchronous speed is 480r/min.

2, a kind of novel simplex winding double speed 8/12 pole three phase asynchronous motor according to claim 1, it is characterized in that: also can be designed to the 2Y/Y connection as required, be 8 utmost point 2Y connections during high speed, and its asynchronous speed is 740r/min; During low speed the Y connection, i.e. 12 utmost points, its asynchronous speed is 480r/min.The turning to of its two kinds of numbers of poles promptly can be in the same way, and design also can be reverse design.

3, a kind of novel simplex winding double speed 8/12 pole three phase asynchronous motor according to claim 1, it is characterized in that: the simplex winding double speed, be that motor only needs can realize two kinds of rotating speeds, 740r/min and 480r/min by the mode of connection that changes outside 6 binding posts once the cover stator winding.