CN2137562Y

CN2137562Y - Magnetic-clutching centrifuge

Info

Publication number: CN2137562Y
Application number: CN 92233389
Authority: CN
Inventors: 刘新志; 田明华; 廖建中; 刘宏迪
Original assignee: Institute of Genetics of CAS
Current assignee: Institute of Genetics and Developmental Biology of CAS
Priority date: 1992-09-19
Filing date: 1992-09-19
Publication date: 1993-07-07
Anticipated expiration: 2002-09-19

Abstract

The utility model relates to a centrifuge whose magnetic clutch is used as a drive structure. The utility model is characterized in that a flange is fixed on a motor shaft by a key, the upper end surface of the flange is provided with a magnetic object, the lower end surface of a rotary device is also provided with the magnetic object, and a turret is sheathed on a fixed shaft which is arranged on the center position of a centrifugal chamber shell. When a motor is rotated, the rotary device is rotated by that an upper and a lower magnetic objects interact.

Description

Magnetic-clutching centrifuge

It is the centrifuge of drive mechanism with the magnetic clutch that the utility model relates to a kind of, for the usefulness of modern biology, genetic engineering and clinical medicine.

Present existing domestic and international centrifuge, all adopt the direct structure that connects with the sample rotary head of axle of motor, we once controlled the separating centrifuge patent automatically in application on January 30th, 91, application number is 91226178.1, and authorize on August 12nd, 92, by facts have proved, the design of original structure centrifuge is complicated, and the processing technology difficulty is big, and mechanical wear is serious, service life is short, and in experiment because the motor that runs up can produce a large amount of heats, and motor and biological sample rotary head closely cooperate in the original structure, along with the centrifugation time prolongation, biological sample also can heat up, thereby influences experimental result.

The purpose of this utility model is to avoid weak point of the prior art and provides a kind of motor shaft the not direct magnetic clutch centrifuge that connects with the sample rotary head.

The purpose of this utility model realizes by following design, fix a ring flange on the motor reel, ring flange upper surface or lateral surface dress magnetic thing, adorn bearing on the fixed axis of whirligig, adorn a shape or oblique crank Z cover at bearing outside, axle sleeve is contained in the rotary head central blind hole, the following or oblique crank Z cover medial surface dress magnetic thing of oblique crank Z cover.

The utility model has the advantages that simplicity of design, processing technology is simple, and mechanical wear is little, improves service life, and biological sample heats up and meets requirement of experiment.

1 couple of first embodiment of the present utility model is elaborated below in conjunction with accompanying drawing, on motor (14) axle, fix a ring flange (12) by key (13), ring flange upper surface dress magnetic thing (11), there is fixed axis (7) at separation chamber's shell (1) center of whirligig, fixed axis below dress pressing plate (10), adorn two bearings (3) on the pressing plate, adorn clamping sleeve (8) between the bearing, fix it by screw (5), packing ring (4), spring washer (6), sample rotary head (2) center processes a blind hole, adorns one in the blind hole

Oblique crank Z cover (9), also adorn magnetic thing (11) in the axle sleeve lower surface, sample rotary head and axle sleeve are sleeved on outside the bearing, adorn clamping sleeve (8) above the bearing, when experiment, laboratory sample is put into centrifuge tube (16), again centrifuge tube is put into the rotary head inclined hole, to give the time of putting, rotating speed input control system (15), start-up control system, motor rotation, owing between magnetic thing above the ring flange and the magnetic below the sample rotary head dividing plate and certain the air gap are arranged, because magnetic deposits yields magnetic field interacts, rotary head is expanded centrifuge tube and is done rotation at a high speed, thereby reaches experiment purpose.

2 couples of second embodiment of the present utility model describe in conjunction with the accompanying drawings, and the present embodiment and the first embodiment difference are that sample rotary head (2) central blind hole is equipped with

The oblique crank Z cover, magnetic thing (11) is contained in the axle sleeve lower inside surface.

Claims

1, the centrifuge that constitutes by motor and whirligig, it is characterized in that fixing a ring flange (12) by key (13) on motor (14) axle, ring flange upper surface or lateral surface dress magnetic thing (11), there is fixed axis (7) at separation chamber's shell (1) center of whirligig, fixed axis below dress pressing plate (10), adorn two bearings (3) on the pressing plate, adorn clamping sleeve (8) between the bearing, fix it by screw (5), packing ring (4), spring washer (6), sample rotary head (2) center processes a blind hole, adorns one in the blind hole

Or

Oblique crank Z cover (9),

Oblique crank Z cover lower surface or

Oblique crank Z cover medial surface is also adorned magnetic thing (11), and sample rotary head and axle sleeve are sleeved on outside the bearing, adorn clamping sleeve (8) above the bearing.