CN2138363Y

CN2138363Y - Large torque synchromotor

Info

Publication number: CN2138363Y
Application number: CN 92233409
Authority: CN
Inventors: 韩成岩
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-12
Filing date: 1992-09-12
Publication date: 1993-07-14
Anticipated expiration: 2002-09-12

Abstract

The utility model discloses a large torque synchromotor, comprising a casing, a front end cap, a back end cap, a motor shaft, a stator and a rotor. A big tooth and a big groove are arranged on the stator, the top of the big tooth is provided with a small tooth and a small groove; the rotor is composed of a rotor shaft, an exciting iron core, an exciting coil and a magnetic yoke, and the top of the magnetic yoke is provided with a small tooth and a small groove; the teeth and the grooves of the stator and the rotor are unequally matched and are provided with gaps, the magnetic conductivity is changed, and the rotor is driven to rotate. The utility model can be made into low speed and large torque synchromotors with various capacities, being suitable for every industry or trade needing to use motors.

Description

Large torque synchromotor

The utility model belongs to the synchronous motor field.

The synchronous motor rotating ratio of producing is higher at present, slow-revving motor need be made jumbo, the low capacity motor is difficult to accomplish the slow-speed of revolution, the general slow-speed of revolution is also more than per minute 500 changes, low again rotating speed production is just very difficult, will increase retarding device when needing with the slow-speed of revolution, and equipment is many, the input cost height, complicated operation.

The purpose of this utility model just is, for overcoming not organizing of prior art, provide a kind of capacity at 100 watts to several kilowatts to society, when needing to use the slow-speed of revolution, need not increase retarding device, rotating speed goes to that hundreds of changes or the high torque (HT) synchronous motor of higher rotating speed at per minute tens.

The utility model can be realized with following mode:

Based on the excitatory principle of axial electricity, the stator of motor, rotor design becomes open slot, and stator, rotor teeth groove cooperate and do not wait, and the air gap that is caused makes the principle that magnetic conductance changes and makes motor work, and its synchronous speed is decided by following formula: hs=60f/Z ₂

In the formula: the f--supply frequency

Z ₂--the rotor number of teeth

Z ₁--the stator number of teeth

P ₁--the stator winding number of pole-pairs

The synchronous motor of forming by casing, front end housing, rear end cap, motor shaft, stator and rotor, have canine tooth and vat on its stator, be placed with stator coil in the vat, also have little tooth and sulculus at the canine tooth top, rotor is made up of armature spindle, field core, magnetizing coil and yoke, and field core is enclosed within on the armature spindle, and magnetizing coil is around field core, two yokes cover on outside the magnetizing coil relatively, at the top of two yokes little tooth, sulculus are arranged.

Gapped between the relative yoke.

The rotor magnetizing coil feeds direct current.

Advantage of the present utility model:

1, rotating speed is low, 60 rev/mins of lowermost turn scooters, the torque height, for example rotating speed is 60 rev/mins, torque is the synchronous machine of 1.5Kgm, and its volume is equivalent to the shortest seat No. of Y90 series, with existing dynamo series contrast, it is equivalent to the nominal torque of Y100-42.2 kilowatt motor, can be slow-speed of revolution high torque (HT);

2, the starting torque performance is good, and Fast starting can enter synchronous speed during starting smoothly voluntarily, need not add any starting equipment, and stall and counter-rotating have self-locking torque during stall fast;

3, starting current is little, and starting current approaches normal operating current, need not set up large power supply starting miniature motor, and the user who is suitable for the small power supply load uses;

4, removed the optional equipment that is used to slow down from, equipment investment is few;

5, under the constant condition of supply frequency, the change in rotational speed rate only is 1/10 ⁴

6, the temperature rise of motor variation is little, as long as motor is stable in normal temperature rise in service,, can not burn because of accident motor generation stall yet, but long-play;

Vibration and noise when 7, motor moves are little, can be widely used in all trades and professions;

8, motor shaft adopts magnetic conductive material, and casing adopts non-magnet material, weight reduction.

Fig. 1 is a whole cutaway view of the present utility model;

Fig. 2 is the stator partial view;

Fig. 3 is the rotor local view.

Embodiment:

As shown in drawings, 12 of canine tooth 12 quantity were arranged on a week of stator, vat 13 also is 12, in vat 13, be placed with stator coil 8, little tooth 14 and sulculus 15 are arranged at the top of canine tooth 12, quantity is 48, the field core 7 of rotor is enclosed within on the armature spindle 10, magnetizing coil 6 is around field core 7, two yokes 5 cover on outside the magnetizing coil 6 relatively, yoke 5 opposite positions are gapped, little tooth 16 is arranged at the top of yoke 5, sulculus 17, quantity is 50, stator, epitrochanterian tooth, groove quantity and size do not wait, stator and rotor cooperate the back tooth, leave air gap between groove, rotor is by dc magnetizing, enter rotor magnetizing coil 6 through the direct current of the over commutation slip ring by brush part 3, the magnetic line of force is through rotor field core 7, yoke 5, stator core 4 produces axial magnetic field, shown in arrow in the accompanying drawing 1, produce radial magnetic field around stator coil 8, two magnetic field interactions drive rotor rotation, in the present embodiment, armature spindle 10 adopts magnetic conductive material 45# axle steel, and casing 2 adopts the non-magnetic material, has alleviated the weight of motor, rotor yoke 5, field core 7 adopts the 10# steel, design comes relatively by equal seat No. (height of center) like this, the utility model than the torque of present y series motor product general all exceed 1 times, in light weight, saves energy contrasts as follows for example:

(1) Y90L-2.2 kilowatt and Y90L ₂-41.5 kilowatts, nominal torque is 0.75 kilogram-metre, 28 kilograms of weight, consuming electric power 2.5 degree per hour, and the breakdown torque of the high torque (HT) synchronous machine of equal seat No. is 1.5 kilogram-metres, 25 kilograms of every weight, per hour power consumption less than 1.0 degree;

(2) Y132S ₁-2,5.5 kilowatts, nominal torque is 1.9 kilogram-metres, 64 kilograms of every weight, consuming electric power 7.26 degree per hour, and the breakdown torque of the high torque (HT) synchronous machine of equal seat No. is 4 kilogram-metres, 58 kilograms of every weight, per hour consuming electric power 2.5 degree.

Be placed with bearing 11 outside the armature spindle 10 in front end housing 9 and rear end cap 1, the utility model can be made vertical and horizontal dual-purpose.

Claims

1, a kind of high torque (HT) synchronous machine is made up of casing 2, rear end cap 1, front end housing 9, stator and rotor, it is characterized in that:

Have canine tooth 12 and vat 13 on the described stator of a, be placed with stator coil 8 in the vat 13, also have a plurality of little teeth 14 and sulculus 15 at the top of canine tooth 12;

The described rotor of b is made up of armature spindle 10, field core 7, magnetizing coil 6 and yoke 5, and field core 7 is enclosed within on the armature spindle 10, and magnetizing coil 6 is around field core 7, and yoke 5 covers on outside the magnetizing coil 6, and a plurality of little teeth 16 and sulculus 17 are arranged at the top of yoke 5.

2, synchronous motor according to claim 1 is characterized in that: between the little tooth 16 of the little tooth 14 of stator, sulculus 15 and rotor, the sulculus 17, leave air gap after the assembling.

3, synchronous motor according to claim 1 is characterized in that: between two relative yokes 5 of rotor the space is arranged.

4, synchronous motor according to claim 1 is characterized in that: feed direct current in the rotor magnetizing coil 6.