Gearless direct-drive annular permanent magnet synchronous motor for ball mill
A ring-shaped permanent magnet, synchronous motor technology, used in synchronous motors with stationary armatures and rotating magnets, electromechanical devices, electric components, etc. Torque and starting torque reduction and other issues, to achieve the effect of reducing harmonic stray loss, reducing vibration and noise, and improving reliability
Pending Publication Date: 2022-07-29
江苏中工高端装备研究院有限公司
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Problems solved by technology
However, if the air gap is too small, the air gap harmonic magnetic field will increase, the stray loss and noise of the motor will increase, and the maximum torque and starting torque will be reduced.
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[0038] The present invention will be further described below with reference to the accompanying drawings.
[0039] see figure 1 and figure 2 , the present invention proposes a gearless direct drive annular permanent magnet synchronous motor 1 for a ball mill, the motor is a split-lobed annular motor with a rotating shaft, including a stator 2, a rotor 3, a sealing device 4, a frequency conversion control system 5 and Adjust the shim 6.
[0040] Wherein, the present invention adopts a modular design for both the stator and the rotor.
[0041] see figure 2 and image 3 The stator 2 is a modular quadrant structure, including four stator lobes 210, and the angle between the two ends of each stator lobe 210 to the axis of rotation is 90°; the four modular stator lobes 210 are spliced in turn to form a complete the stator 2;
[0042] Each stator lobe 210 includes: a frame 211, a stator core 212, a bus ring 213, an armature winding 214 and a fastening component 215; the arm...
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The invention discloses a gearless direct-drive annular permanent magnet synchronous motor for a ball mill. The gearless direct-drive annular permanent magnet synchronous motor comprises a stator, a rotor, a sealing device, a frequency conversion control system and an adjusting sizing block, wherein the stator is in a modular quartering design, and all modular stator petals are spliced in sequence to form a complete stator. The rotor is in a modular trisection design, modular rotor petals are sequentially spliced to form a complete rotor, and the rotor is fixed to a barrel flange of the ball mill through bolts and is coaxial with a barrel. And sealing devices are respectively arranged on two sides of the motor. The adjusting sizing blocks comprise the left adjusting sizing block, the middle adjusting sizing block and the right adjusting sizing block. And each adjusting sizing block comprises a basic sizing block, a wedge-shaped sizing block and an adjusting screw rod. The air gap of the motor is adjusted by rotating the adjusting screw rod, and it is guaranteed that the air gap is within the threshold value range. According to the ball mill, the transmission efficiency of the system can be improved, meanwhile, maintenance and repair work is reduced, and the reliability of equipment is improved.
Description
technical field [0001] The invention belongs to the technical field of ball mill drive equipment, and relates to a gearless direct drive annular permanent magnet synchronous motor for ball mills. Background technique [0002] With the rapid development of China's economy, the consumption of energy is increasing, but the domestic energy utilization rate is low, and the country has continuously strengthened the implementation of energy conservation and emission reduction. [0003] my country's mines have a huge amount of large-scale machinery and equipment. Due to the many transmission links of machinery and equipment, energy consumption is relatively large. Under the national policy of energy conservation and emission reduction, the development of machinery and equipment in the direction of high efficiency and energy saving is promoted. Permanent magnet direct drive system is a kind of The inevitable trend. [0004] In industrial production, ball mill is the key equipment for...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K1/18H02K1/28H02K21/14H02K7/14
CPCH02K1/185H02K1/28H02K21/14H02K7/14H02K2213/03H02K2201/03
Inventor 曹建薛晓麟王远兵王长路姬胜杰景祥王伟功朱霞石和玉焦云
Owner 江苏中工高端装备研究院有限公司