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Ultra centrifuge

A centrifuge and centrifuge chamber technology, applied in centrifuges, electromechanical devices, electromechanical transmission devices, etc., can solve the problems of unstable system operation, low transmission efficiency, shortened service life, etc., to avoid unstable operation, beautiful appearance, The effect of easy operation

Inactive Publication Date: 2013-03-20
HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST
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AI Technical Summary

Problems solved by technology

[0004] Vacuum dynamic seals are generally divided into contact seals, non-contact seals and software deformation seals. Software deformation seals are mainly used in swing mechanisms, and the speed is very low; contact seals use advanced materials and advanced technology conditions, and the speed can reach up to 40000rpm. No matter how high the speed is, severe wear and tear will occur and a large amount of heat will be generated, resulting in low transmission efficiency, unstable system operation, and shortened service life;

Method used

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Embodiment 1

[0034] see Figure 1 to Figure 9 , the ultracentrifuge includes a centrifuge housing 2 separated by a centrifuge chamber isolation layer 1 into a centrifuge chamber and a motor installation chamber; a vacuum pump 3, a frequency converter 4 and a motor base for installing a motor 5 are housed in the motor installation chamber 6. The centrifugal chamber is provided with a centrifugal barrel 35 for loading the centrifugal head 7, and the motor 5 is connected to the centrifugal head 7;

[0035] The motor 5 includes a rotor 8, a stator 9 set outside the rotor 8, a radial air bearing 10 and an axial magnetic bearing 11 set at both ends of the rotor 8;

[0036] The rotor 8 includes a rotating shaft 12, a rotor sheath 13 sleeved outside the rotating shaft 12, and a permanent magnet 14 in the middle of the rotating shaft 12;

[0037] The stator 9 is composed of an annular stator core 15 and an annular stator coil winding 16 wound on the annular stator core 15;

[0038] The radial air...

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Abstract

The invention discloses an ultra centrifuge. The ultra centrifuge solves the two major problems of development of high-speed motors and development of high-speed vacuum sealing devices, air floatation and air floatation hybrid bearing technology is adopted in the design of the high-speed motors, and bearing stiffiness and bearing stability are enhanced greatly; a large interference shrink fit method is adopted in the design of protective sleeves, and completeness of rotors is protected effectively; the rotors are of a three-section structure; a stator core is of a relatively eclectic 12-groove structure, and a winding utilizes a ring-type winding; and the cooling method is a force-air cooling method, and reliable and stable operation of an ultra centrifuge driving device is guaranteed. High-speed vacuum sealing utilizes a magnetic drive vacuum dynamic sealing connection method, and non-contact transmission of motive power is achieved through magnetic transmission between an inner magnet rotor and an outer magnet rotor. The successful development of the ultra centrifuge changes the passive situation that out country completely relies on import in an ultra centrifuge market, and the ultra centrifuge has wide market prospects and great social benefits.

Description

Technical field [0001] The present invention is a technology field of biopharmaceuticals, medicine and biological engineering equipment, which involves a super -speed centrifuge. Background technique [0002] Centrifuge technology is an indispensable technology in molecular biology and biochemistry research. It is based on the differences in the sedimentation coefficient and buoyancy of the material.Different density in the substance, the substances of different molecular weights are separated, concentrated, purified and precipitated.Basic centrifuge equipment can be divided into three types. Ordinary centrifuge speed is below 100,000rpm, high -speed centrifugal speed speed is 10000 ~ 30000rpm, and the speed of speed centrifugal speed is above 30000rpm. Generally, it can reach 60,000 ~ 100000rpm.Due to its high speed, high -speed centrifuge involving high -speed bearings, ultra -high -speed frequency conversion control technology, ultra -high -speed turn strength and reliability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B04B9/02H02K5/16H02K1/22H02K1/16H02K5/20H02K51/00
Inventor 杨尔卫张颖博汤浩
Owner HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST
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