Magnetic shaft system with high-speed shaft supported by magnetic suspension bearing
A technology of magnetic suspension bearing and high-speed shaft, applied in the direction of magnetic bearing, bearing, shaft and bearing, etc., can solve the problems of high maintenance cost, large shaft volume, and high cost of the whole machine, so as to reduce the maintenance cost and reduce the energy consumption of the shaft system. , the effect of reducing the cost
Pending Publication Date: 2021-11-09
XINLEI COMPRESSOR CO LTD
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Problems solved by technology
However, in this method, the large volume of the gears leads to a large volume of the entire shafting system, and the cost of the whole machine is high; and when the high-speed shafting system is supported by ball bearings, the speed of the high-speed shaft is limited due to the contact friction of the ball bearings, and oil is required. Cooling and lubrication for ball bearings, high maintenance costs
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Embodiment 1
[0024] Such as figure 1 Shown is a magnetic shaft system in which a high-speed shaft is supported by a magnetic suspension bearing. The shaft system includes a low-speed shaft system 1 and a high-speed shaft system 2; the low-speed shaft system 1 includes a low-speed shaft 11 and a plurality of ball bearings 12. The low-speed shaft 11 is fixed There are a plurality of driving magnets 13 distributed along the circumference, and the outer walls at both ends of the low-speed rotating shaft 11 are respectively in interference fit with the inner rings of the ball bearings 12 at corresponding positions; the high-speed shafting 2 includes a high-speed rotating shaft 21, radial magnetic bearings 22 and shaft To the magnetic bearing 23, the high-speed rotating shaft 21 is provided with a radial bearing rotor, a thrust plate 25 and a plurality of driven magnetic steels 26; a plurality of radial magnetic bearings 22 are respectively sleeved at both ends of the high-speed rotating shaft 21...
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The invention relates to the field of magnetic shaft systems, in particular to a magnetic shaft system with a high-speed shaft supported by a magnetic suspension bearing. The shaft system comprises a low-speed shaft system and a high-speed shaft system; the low-speed shaft system comprises a low-speed rotating shaft and ball bearings, a plurality of driving magnetic steels are fixedly arranged on the low-speed rotating shaft, and the outer walls of the two ends of the low-speed rotating shaft are in interference fit with inner rings of the ball bearings at the corresponding positions; the high-speed shaft system comprises a high-speed rotating shaft, a radial magnetic bearing and an axial magnetic bearing; the high-speed rotating shaft is provided with a radial bearing rotor, a thrust disc and a plurality of driven magnetic steels; the multiple radial magnetic bearings are arranged at the two ends of the high-speed rotating shaft in a sleeving mode respectively, and the supporting ends of the radial magnetic bearings are aligned with the radial bearing rotors at the corresponding positions. The limiting ends of the axial magnetic bearing are located on the two axial sides of the thrust disc respectively, and the driving magnetic steel is arranged at the corresponding position of the driven magnetic steel. The shaft system reduces the manufacturing cost of the whole machine, improves the rotating speed of the high-speed shaft, does not need lubrication and reduces the maintenance cost.
Description
technical field [0001] The invention relates to the field of magnetic shafting, in particular to a magnetic shafting in which a high-speed shaft is supported by a magnetic suspension bearing. Background technique [0002] A magnetic gear is basically a transmission device that does not have a traditional gear tooth shape. It uses magnetic coupling force to attract and repel each other to achieve the purpose of transmission. It is called a magnetic gear only because of its similar configuration and the same transmission purpose. It is not traditional in nature. gear. The parallel transmission mode of magnetic gears is developing rapidly. Compared with traditional gears, it is far ahead in terms of transmission efficiency, transmission ratio, and processing. This device has been used in industry for many years, and it is also developing continuously in academia. [0003] China's invention patent application (publication number CN101050805, publication date: 20071010) disclose...
Claims
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IPC IPC(8): H02K49/10H02K7/10H02K7/09H02K7/00F16C32/04
CPCH02K49/102H02K7/003H02K7/09H02K7/10F16C32/0406
Inventor 钟仁志袁军
Owner XINLEI COMPRESSOR CO LTD