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Driving shaft, rotor and centrifugal machine thereof

A drive shaft and centrifuge technology, applied in the field of centrifuges, can solve the problems of low reliability, cumbersome and complicated operation, etc., and achieve the effects of simple and effective operation, avoiding safety accidents and reducing operation burden.

Pending Publication Date: 2022-04-29
RWD LIFE SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a drive shaft, which aims to solve the problems of cumbersome and complicated operations and low reliability in the locking and unlocking of the rotor and the drive shaft in the prior art

Method used

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  • Driving shaft, rotor and centrifugal machine thereof
  • Driving shaft, rotor and centrifugal machine thereof
  • Driving shaft, rotor and centrifugal machine thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 It is a schematic diagram of the drive shaft provided by Embodiment 1 of the present invention. figure 2 It is a sectional view of the drive shaft provided by Embodiment 1 of the present invention. During the centrifugation operation, the test tube (not shown) containing the biological sample to be centrifuged is put into the rotor (not shown), and then the rotor is locked on the drive shaft, and the drive shaft rotates for centrifugation.

[0024] combine figure 1 with figure 2 , The drive shaft includes a drive shaft body 1 , a lock tongue 2 and a spring 3 . The outer surface of the drive shaft body 1 includes a cylindrical surface 13 and a truncated cone surface 14 . A first groove 11 is provided on the side surface and the cylindrical surface 13 of the drive shaft body 1 , and the locking tongue 2 and the spring 3 are accommodated in the first groove 11 . Both ends of the spring 3 are respectively connected with the inner wall of the drive shaft body...

Embodiment 2

[0032] image 3 It is a sectional view of locking the rotor and the drive shaft provided by Embodiment 2 of the present invention. Figure 4 It is a partial cross-sectional view of the locking of the rotor and the drive shaft provided by Embodiment 2 of the present invention. Figure 5 It is a partial sectional view of the unlocking of the rotor and drive shaft provided by Embodiment 2 of the present invention. In the embodiment of the present invention, the components that are the same as those in the first embodiment use the same symbols as those in the first embodiment, including all the features described in the first embodiment, and will not be repeated here.

[0033] combine image 3 , Figure 4 with Figure 5 , the rotor includes a rotor body 8 and a rotor cover 9 , and the housing cavity 81 of the rotor body 8 is closed by the rotor cover 9 . The central shaft of the rotor is a hollow structure, and the inner wall thereof is provided with a second groove 6 . As d...

Embodiment 3

[0039] Image 6 It is a schematic diagram of the centrifuge provided by Embodiment 3 of the present invention. Such as Image 6 As shown, the centrifuge includes a motor, a centrifuge cavity, the rotor described in the second embodiment and the drive shaft described in the first embodiment.

[0040] In the embodiment of the present invention, the drive shaft passes through the bottom of the cavity of the centrifuge and is connected with the central shaft of the rotor to lock the rotor on the drive shaft, and the rotor is located in the cavity of the centrifuge. Then put the test tube (not shown) containing the biological sample to be centrifuged into the rotor, close the door cover of the centrifuge, so that the rotor is located in the sealed cavity of the centrifuge, and the motor drives the drive shaft to rotate for centrifugation.

[0041] In the embodiment of the present invention, a lock tongue is provided in the first groove of the drive shaft body, and the lock tongue...

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Abstract

The embodiment of the invention provides a driving shaft, which comprises a driving shaft body, a first driving shaft, a second driving shaft and a driving shaft, the spring bolt is accommodated in the first groove; the spring is contained in the first groove, and the two ends of the spring are connected with the driving shaft body and the spring bolt correspondingly; the spring bolt partially extends out of the first groove under the action of the spring and locks the rotor on the driving shaft body in the axial direction; the driving shaft body further comprises a first through hole, the spring bolt further comprises a second through hole, projections of the first through hole and the second through hole in the axial direction of the driving shaft body at least partially coincide, external force acts on the spring bolt through the first through hole and the second through hole, the spring bolt compresses the spring under the action of the external force and retracts to the first groove, and the rotor is unlocked from the driving shaft body. According to the embodiment of the invention, the operation is simple, convenient and effective, the reliability is high, the operation burden of experimenters is reduced, and the situation of safety accidents caused by improper locking is avoided.

Description

technical field [0001] The invention relates to the technical field of centrifuges, in particular to a drive shaft, a rotor and a centrifuge thereof. Background technique [0002] A centrifuge is an instrument used for the separation of biological samples and is widely used in life sciences, medical care, chemistry, environmental protection and other fields. Usually, the rotor is fixed to the drive shaft through threaded connection, and the motor drives the drive shaft to rotate, which in turn drives the rotor to rotate for centrifugal operation. Such a connection method requires the experimenter to use a tool to twist several times to ensure that the rotor and the drive shaft are locked together, and the operation is cumbersome and complicated. If it is not screwed in place, the rotor may loosen during high-speed rotation and fly out of the centrifuge cavity, causing a safety accident. Contents of the invention [0003] An embodiment of the present invention provides a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B04B9/08
CPCB04B9/08
Inventor 张德鹏阳方义
Owner RWD LIFE SCI
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