CN2899265Y - Special motor and its speed variator system - Google Patents

Abstract

The utility model relates to a special motor and its speed variator system, comprising a rotor and a stator. The center is a fixed axis with a bearing arranged on. Two ends of the fixed axis are arranged on a fixed support. A rotor is arranged on the bearing, and small teeth are arranged on the inner wall surface of the rotor. A stator is arranged inside the rotor, which is silicon steel sheet stacked into an iron core. Eight evenly distributed magnetic poles are arranged on each side of the stator. A plurality of small teeth are arranged on each magnetic pole covered with a coil, and the coils on two radially opposite magnetic poles form one group. The special motor low speed of the utility model can be arbitrarily set and adjusted. The torque is large, and the angular displacement within 0 degrees-360 degrees can be arbitrarily controlled. The outer rotor driving can be used as an output wheel with non-gear soft rotation, which is energy saving, simple and convenient in using, operation and maintenance. The speed variator system adopted with the utility model can simplify the structure of complete set of mechanical equipment used in mine and oilfield, improve intelligence and mechanical efficiency, and save energy.

Description

Specific type of electric machine and transmission system thereof

Technical field:

The utility model relates to motor, and the electrical motor gearshift system.

Background technology:

Mechanical transmission is to be made of gearbox, axle, gear, bearing, lubricating oil, though the moment of torsion that gear reduction unit transmits is big, is subjected to structural limitations, if will increase gearratio with regard to corresponding increasing physical dimension, thereby has increased the weight of itself.In addition, though the gear reduction unit stable drive, driving torque is big, and its Gear Processing operation is many, and the process-cycle is long, and requires the machining accuracy height, under the prerequisite of ensuring the quality of products, has increased cost.Gear reduction unit gear in the course of the work need lubricate, this has also correspondingly increased the complexity of its structure, and can produce friction when gear and gears engaged, cause gear failure easily, thereby reduced the useful life of decelerator, increased a series of links such as maintenance, the inconvenience that brings to working service, mechanical efficiency is low, can not regulate the speed arbitrarily at any time.

Specific type of electric machine power is little, and torque is little, is mainly used in automatic field, and AC induction motor rotating speed height, torque are little, can not do high-torque direct and connect driving.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned not enough problem, and a kind of specific type of electric machine is provided, and is simple in structure, the big torque of the slow-speed of revolution, the mechanical efficiency height, energy savings, easy to operate, safeguard simple, long service life.Its special-purpose transmission system is provided in addition, reduces energy consumption, improve production capacity and automatization level.

The technical scheme that the utility model is adopted for achieving the above object is: specific type of electric machine, comprise rotor and stator, the center is on the fixed axis bearing to be housed, the fixed axis two ends are contained on the hold-down support, rotor is housed on the bearing, have little tooth on the rotor inner wall face, stator is housed in the rotor, stator is that silicon steel plate packing becomes iron core, 8 equally distributed magnetic poles are arranged on every side stator, have some little teeth on each magnetic pole, be set with coil on each magnetic pole, the coil on two radially relative magnetic poles constitutes one group.

Described rotor outside wall surface has belt grooves.

The transmission system that described specific type of electric machine is used, the controller single-chip microcomputer connects inverter, and inverter connects specific type of electric machine, and specific type of electric machine inside or outside are provided with position transducer, and transducer is connected the controller single-chip microcomputer.

Described controller Single-chip Controlling panel is provided with to turn to sets button and speed setting button.

Described controller single-chip microcomputer is provided with timer.

The utility model specific type of electric machine operation principle is to be based upon the magnetic line of force to try hard to produce the transmission of reluctance torque driving rotor by the path of magnetic resistance minimum, and the angular displacement of output is directly proportional with umber of pulse, and rotating speed is directly proportional with pulse frequency.Turn to and depend on power-up sequence in the control winding.It can be according to the requirement of control impuls, and Fast starting, counter-rotating, braking and stepless speed regulation can not lost the step during operate as normal, and per step has self-lock ability when stopping operating.Two ends are provided with fixed supporting seat and the axle axle that fixes, and the centre is equipped with the bearings external rotor and is done rotation with moving bringing onto load work.Rotating speed is low: 0-14 rev/min, speed can be set adjustment arbitrarily, and torque can reach 80KN.m greatly, and angular displacement can be controlled arbitrarily between 0 °-360 °, and external rotor drives can directly do output wheel, the soft rotation of gearless, and energy savings is used, operates, safeguards simple and convenient.

Transmission system is to be the energy with the electric energy, drives the external rotor rotation by specific type of electric machine body, driver, transducer and controller etc. being carried out energy conversion, drags big torque mechanical load.Produce control signal by single-chip microcomputer, control wave is transformed to angular displacement, the plant device structure in mine, oil field is oversimplified, the intelligent raising improved mechanical efficiency, energy savings.And make mechanically actuated operation convenient, safeguard simply, reduce manufacturing cost and daily consumption costs, improve production capacity and automatization level, can substitute big torque mechanical transmission.

Description of drawings:

Fig. 1 is the utility model specific type of electric machine structural representation.

Fig. 2 is the utility model specific type of electric machine end view.

Fig. 3 transmission system block diagram.

Fig. 4 is the transmission system main circuit diagram.

Embodiment:

Specific type of electric machine as shown in Figure 1, 2, comprise rotor 1 and stator, motor center is that bearing 6 is housed on the fixed axis 4, the fixed axis two ends are contained on the hold-down support 5, rotor is housed on the bearing, have little tooth 2 on the rotor inner wall face, outside wall surface has belt grooves 8, two groups of stators are housed in the rotor, stator is that silicon steel plate packing becomes iron core 7, and 8 equally distributed magnetic poles are arranged on every side stator, has some little teeth 2 on each magnetic pole, be set with coil 3 on each magnetic pole, the coil on two radially relative magnetic poles constitutes one group.

The transmission system that above-mentioned specific type of electric machine is used, controller single-chip microcomputer 12 connects inverter 13, inverter connects specific type of electric machine 14, specific type of electric machine inside or outside are provided with position transducer 15, transducer is connected the controller single-chip microcomputer, and controller Single-chip Controlling panel is provided with to turn to sets button 9 and speed setting button 10, also is provided with timer 11 on the controller single-chip microcomputer, power supply 16 provides power supply to inverter, and main circuit diagram as shown in Figure 4.Controller single-chip microcomputer basic controlling is as follows: control commutation order: usually this process of energising commutation is called pulse distribution.For example: four four clap working method mutually, and its each order of switching on mutually is A-B-C-D-A, and the energising control impuls must be in strict accordance with this sequential control energising and outage.Control turns to: by given working method positive sequence energising commutation, motor just changes according to principle, if by anti-energising commutation then reverse.For example: four phases, four bat modes, energising commutation positive sequence is that A-B-C-D-A just changes, as pressing inverted sequence, then A-C-B-D-A counter-rotating.Control rate: if a control impuls takes place, just change a step, send out a pulse again, it can change a step again, and the blanking time of two pulses is short more, and that just changes is fast more.Therefore adjusting the pulse frequency that single-chip microcomputer sends just can speed governing.Acceleration and deceleration control: utilize the Microcomputer Timer interrupt mode to control speed change, be actually the size of continuous change timer loading value.

Be applied to oil field oil recovery machiner-oil pumper, the polished rod eye that specific type of electric machine external rotor loadwheel one side is made of steel wire rope is connected to the production wellhead oil well pump, the loadwheel opposite side hangs counterweight with steel wire rope, and after to motor input rotate instruction, the rotation of external rotor loadwheel directly drives oil well pump, reach the oil pumping purpose, can thoroughly change the structure of conventional pumping unit, reach and make simply, intelligent high, energy savings is keeped in repair easy effect.Oil pumper stroke after the transformation of the way can be regulated at any time, and jig frequency can be set arbitrarily according to the ore deposit of recovering the oil, scene, and up-down stroke speed can be set adjustment respectively, increases long liquid measure, and the raising machine is adopted coefficient.

Claims (5)

1, specific type of electric machine, comprise rotor and stator, it is characterized in that: the center is that bearing (6) is housed on the fixed axis (4), and the fixed axis two ends are contained on the hold-down support (5), rotor (1) is housed on the bearing, have little tooth (2) on the rotor inner wall face, stator is housed in the rotor, stator is that silicon steel plate packing becomes iron core (7), 8 equally distributed magnetic poles are arranged on every side stator, have some little teeth on each magnetic pole, be set with coil (3) on each magnetic pole, the coil on two radially relative magnetic poles constitutes one group.

2, specific type of electric machine according to claim 1 is characterized in that: rotor (1) outside wall surface has belt grooves (8).

3, adopt the transmission system of claim 1,2 described specific type of electric machines, it is characterized in that: controller single-chip microcomputer (12) connects inverter (13), inverter connects specific type of electric machine (14), and specific type of electric machine inside or outside are provided with position transducer (15), and transducer is connected the controller single-chip microcomputer.

4, transmission system according to claim 3 is characterized in that: controller Single-chip Controlling panel is provided with to turn to sets button (9) and speed setting button (10).

5, transmission system according to claim 3 is characterized in that: the controller single-chip microcomputer is provided with timer (11).

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