CN110665651A - An automatic extraction type cell experiment centrifuge - Google Patents

Abstract

The invention discloses an automatic extraction type cell experiment centrifugal machine, and mainly relates to the technical field of biological cell experiments. Comprises a base, a bracket, a centrifugal base shell, a centrifugal rotating stand, a rotating stand driving device assembly, a test tube placing rack and a test tube to be centrifuged; the test tube automatic rotating device assembly is also included; the test tube autorotation device assembly comprises a hub motor, a driving gear, a driven gear, a driving belt wheel, a transmission belt and a driven belt wheel; driven pulley rotates to connect and sets up on test tube rack, it places the round hole to be equipped with the test tube on the driven pulley, treat that centrifugal test tube bottom is equipped with the sealing plug. The invention has the beneficial effects that: the test tube to be centrifuged can be more thoroughly mixed and stirred by optimizing the motion track of the test tube to be centrifuged; and the material of test tube bottom is effectual taken out completely behind can more thorough will centrifuging, improves centrifugal efficiency greatly.

Description

An automatic extraction type cell experiment centrifuge

technical field

The invention relates to the technical field of biological cell experiments, in particular to an automatic extraction type cell experiment centrifuge.

Background technique

Centrifuges are the basic separation instruments in biological laboratories and are often used to separate solid and liquid phases in colloidal solutions.

The existing technology basically adopts the technology in the invention patent with the application number of 201610643787.2. In this technology, the centrifugal turret is rotated to drive the test tube to be centrifuged to revolve around the center of the centrifugal turret, thereby performing the centrifugation process. However, due to the effect of inertia, when the test tube to be centrifuged moves in a circular motion at a uniform speed, the acceleration is all centripetal acceleration, and there is no acceleration in the tangential direction, so the effect of mixing and mixing will not be very good. Moreover, in this technology, the material with a large specific gravity at the bottom of the test tube after centrifugation is extracted by controlling the lifting mechanism, so as to ensure the separation effect. The setting of the lifting mechanism and the extraction port is unreasonable, the structure of the lifting mechanism is complex, and it is basically impossible to achieve a good extraction effect, and the extraction port is not set at the bottom of the test tube, so it is difficult to completely and effectively extract the material at the bottom of the test tube. affect centrifugal efficiency.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automatic extraction type cell experiment centrifuge, which can more thoroughly mix and agitate the centrifuged test tube by optimizing the motion trajectory of the centrifuged test tube; Effective extraction, greatly improve the centrifugal efficiency.

The present invention is achieved by the following technical solutions in order to achieve the above object:

An automatic extraction type cell experiment centrifuge, comprising a base, a bracket, a centrifugal base casing, a centrifugal turntable, a turntable driving device assembly, a test tube placing rack and a test tube to be centrifuged; the support is arranged on the base, and the centrifugal The bottom of the base casing is supported by a bracket, the centrifugal turret is arranged in the centrifugal base casing, the turret driving device assembly drives the rotation of the centrifugal turret, and the annular array of test tube placement racks is arranged around the centrifugal turret , the centrifugal tube is arranged on the test tube placement rack;

It also includes a test tube rotation device assembly; the test tube rotation device assembly includes a hub motor, a driving gear, a driven gear, a driving pulley, a transmission belt, and a driven pulley; the hub motor is arranged in the centrifugal turret, so The hub motor drives the rotation of the driving gear, the rotation of the driving gear drives the rotation of the driven gear, the driven gear and the driving pulley are integrated coaxially, and the driving pulley drives the driven belt through the transmission belt The rotation of the wheel, the driven pulley is rotatably connected and arranged on the test tube placement rack, the test tube placement rack is provided with a circular hole, the driven pulley is provided with a test tube placement circular hole, the circular The holes and test tubes are placed concentrically with circular holes, and the diameters of the circular holes and test tubes are larger than the diameter of the test tube to be centrifuged; the bottom of the test tube to be centrifuged is provided with a sealing rubber plug, and the casing of the centrifugal base is provided with a seal The extraction guide tube corresponding to the rubber stopper.

The bottom of the casing of the centrifugal base is provided with a shaft perforation. The turret drive device assembly includes a servo motor and a main shaft. The servo motor is arranged on the base. The servo motor drives the main shaft to rotate, and the top of the main shaft passes through the shaft. The perforation is attached to the bottom of the centrifuge turntable.

The bottom of the centrifugal seat casing is provided with a bearing end cover, the bearing end cover is provided with a thrust bearing adapted to the main shaft, the main shaft is provided with a flange adapted to the thrust bearing, and the two thrust bearings are respectively Set on both sides of the flange.

The top of the side wall of the centrifugal turret is provided with a pressing wheel, and the pressing wheel compresses the transmission belt.

The test tube placing rack is provided with a circular chute, the driven pulley is provided with a slide rail that is slidably connected with the circular chute, and the slide rail moves in a circular motion along the circular chute.

The inner surface of the test tube placement circular hole is provided with an elastic rubber gasket.

A cover is provided on the top of the casing of the centrifugal base.

Compared with the prior art, the beneficial effects of the present invention are:

The motion of the test tube to be centrifuged in this device includes rotation and revolution. The rotation is driven by the test tube rotation device assembly, and the revolution is driven by the rotation of the centrifugal turntable, which makes the movement of the test tube to be centrifuged more complicated. The optimization of the motion trajectory of the centrifugal test tube, coupled with the constant change of the speed of the hub motor and the servo motor, can more thoroughly mix and agitate the centrifugal test tube.

Moreover, by inserting the extraction needle along the extraction guide tube, and inserting the needle through the sealing rubber plug at the bottom of the test tube to be centrifuged, the substance at the bottom of the test tube can be extracted. The material at the bottom is completely and effectively extracted, which greatly improves the centrifugal efficiency.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of part A in Fig. 1 of the present invention.

Fig. 3 is an enlarged view of part B in Fig. 1 of the present invention.

Symbols shown in the attached drawings:

1. Base; 2. Bracket; 3. Centrifuge base case; 4. Centrifugal turntable; 5. Test tube placement rack; 6. Test tube to be centrifuged; 7. Hub motor; 8. Driving gear; 9. Driven gear; 10 , drive pulley; 11, drive belt; 12, driven pulley; 13, round hole; 14, test tube placement round hole; 15, sealing rubber stopper; 16, extraction guide tube; 17, shaft perforation; 18, servo Motor; 19, main shaft; 20, bearing end cover; 21, thrust bearing; 22, flange; 23, pinch roller; 24, circular chute; 25, slide rail; 26, elastic rubber gasket; 27, shell cover .

Detailed ways

The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teaching content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

The present invention is an automatic extraction type cell experiment centrifuge. The main structure includes a base 1, a bracket 2, a centrifugal base casing 3, a centrifugal turntable 4, a turntable drive device assembly, a test tube placement rack 5 and a test tube to be centrifuged. 6; the bracket 2 is arranged on the base 1, the bottom of the centrifugal base casing 3 is supported by the bracket 2, the centrifugal turret 4 is arranged in the centrifugal base casing 3, and the turret driving device assembly drives the centrifugal The rotation of the turret 4, the annular array of the test tube placement rack 5 is arranged around the centrifugal turret 4, the centrifugal tube is arranged on the test tube placement rack 5; the bottom of the centrifugal stand housing 3 is provided with a shaft perforation 17 , the turret drive device assembly includes a servo motor 18 and a main shaft 19, the servo motor 18 is arranged on the base 1, the servo motor 18 drives the main shaft 19 to rotate, and the top of the main shaft 19 passes through the shaft hole 17 and the centrifugal The bottom of the turret 4 is connected. A bearing end cover 20 is provided at the bottom of the bottom of the centrifugal seat housing 3 , and a thrust bearing 21 adapted to the main shaft 19 is provided in the bearing end cap 20 , and the main shaft 19 is provided with a convex bearing 21 adapted to the thrust bearing 21 . The flange 22 and two thrust bearings 21 are respectively arranged on both sides of the flange 22 .

The above is the technical principle of 6 revolutions of the test tube to be centrifuged. The device also includes a test tube rotation device assembly.

The test tube rotation device assembly includes a hub motor 7, a driving gear 8, a driven gear 9, a driving pulley 10, a transmission belt 11, and a driven pulley 12; the hub motor 7 is arranged in the centrifugal turret 4, so the The hub motor 7 drives the rotation of the driving gear 8, and the rotation of the driving gear 8 drives the rotation of the driven gear 9. The driven gear 9 and the driving pulley 10 are integrally arranged coaxially, and the driving pulley 10 The driven pulley 12 is driven to rotate by the transmission belt 11 , and the driven pulley 12 is rotatably connected to the test tube placement rack 5 , and the test tube placement rack 5 is provided with a circular hole 13 . 12 is provided with a test tube placement circular hole 14, the circular hole 13 and the test tube placement circular hole 14 are arranged concentrically, and the diameter of the circular hole 13 and the test tube placement circular hole 14 is larger than the diameter of the test tube 6 to be centrifuged; A sealing rubber stopper 15 is arranged at the bottom of the test tube 6 , and an extraction guide tube 16 corresponding to the sealing rubber stopper 15 is arranged on the centrifugal stand housing 3 .

The top of the side wall of the centrifugal turret 4 is provided with a pressing wheel 23 , and the pressing wheel 23 compresses the transmission belt 11 .

The test tube placement rack 5 is provided with a circular chute 24 , the driven pulley 12 is provided with a slide rail 25 slidably connected to the circular chute 24 , and the slide rail 25 forms a circumference along the circular chute 24 . sports. In this way, the driven pulley 12 can be placed on the test tube placing rack 5 and can be rotated concentrically.

The inner surface of the test tube placement circular hole 14 is provided with an elastic rubber gasket 26, and the elastic deformation ability of the elastic rubber gasket 26 can stably fix the test tube 6 to be centrifuged.

A cover 27 is provided on the top of the casing 3 of the centrifugal base.

How to use and principle:

The movement of the test tube 6 to be centrifuged in this device includes rotation and revolution. The rotation is driven by the test tube rotation device assembly, the hub motor 7 drives the driving gear 8 to rotate, the driving gear 8 drives the driven gear 9 to rotate, the driven pulley 12 and the driving pulley 10 are integrally arranged to drive the driving pulley 10 to rotate, The driving pulley 10 drives the driven pulley 12 to rotate through the transmission belt 11 , thereby driving the test tube 6 to be centrifuged on the driven pulley 12 to rotate. The revolution is driven by the rotation of the centrifugal turret 4 , and the servo motor 18 drives the rotation of the centrifugal turret 4 through the main shaft 19 .

The motion of the test tube 6 to be centrifuged includes rotation and revolution, which makes the motion of the test tube 6 to be centrifuged more complicated. By adopting this method, the motion trajectory of the test tube 6 to be centrifuged is optimized, and in addition, the hub motor 7 and the servo motor are continuously changed. At a speed of 18, the centrifuge tube 6 can be mixed and agitated more thoroughly.

Moreover, by inserting the extraction needle tube along the extraction guide tube 16, and inserting the needle through the sealing rubber stopper 15 at the bottom of the test tube 6 to be centrifuged, the substance at the bottom of the test tube can be extracted. The material at the bottom of the test tube after centrifugation is completely and effectively extracted, which greatly improves the centrifugation efficiency.

Claims (7)

1. An automatic extraction type cell experiment centrifuge comprises a base (1), a bracket (2), a centrifuge base shell (3), a centrifuge rotating frame (4), a rotating frame driving device assembly, a test tube placing frame (5) and a test tube (6) to be centrifuged;

the test tube rack is characterized in that the support (2) is arranged on the base (1), the bottom of the centrifugal seat shell (3) is supported by the support (2), the centrifugal rotating frame (4) is arranged in the centrifugal seat shell (3), the rotating frame driving device assembly drives the centrifugal rotating frame (4) to rotate, the test tube rack (5) is arranged around the centrifugal rotating frame (4) in an annular array mode, and the test tube rack (5) with the centrifugal tubes is arranged on the test tube rack (5);

the method is characterized in that: the test tube automatic rotating device assembly is also included; the test tube rotation device assembly comprises a hub motor (7), a driving gear (8), a driven gear (9), a driving belt wheel (10), a transmission belt (11) and a driven belt wheel (12);

the test tube placing device is characterized in that the hub motor (7) is arranged in the centrifugal rotating frame (4), the hub motor (7) drives the driving gear (8) to rotate, the driving gear (8) drives the driven gear (9) to rotate, the driven gear (9) and the driving belt wheel (10) are arranged in an integrated mode with the same axis, the driving belt wheel (10) drives the driven belt wheel (12) to rotate through a transmission belt (11), the driven belt wheel (12) is rotatably connected and arranged on the test tube placing frame (5), a circular hole (13) is formed in the test tube placing frame (5), a test tube placing circular hole (14) is formed in the driven belt wheel (12), the circular hole (13) and the test tube placing circular hole (14) are arranged in a concentric mode, and the diameter of the circular hole (13) and the test tube placing circular hole (14) is larger than the diameter of a test tube (;

treat that centrifugal test tube (6) bottom is equipped with seals plug (15), be equipped with on centrifugal seat casing (3) and seal corresponding extraction stand pipe (16) of plug (15).

2. The automatic extraction type cell experiment centrifuge as claimed in claim 1, wherein: centrifugal seat casing (3) bottom is equipped with axle perforation (17), revolving rack drive arrangement assembly includes servo motor (18) and main shaft (19), servo motor (18) set up on base (1), servo motor (18) drive main shaft (19) rotate, main shaft (19) top is passed axle perforation (17) and is connected bottom centrifugal revolving rack (4).

3. The automatic extraction type cell experiment centrifuge as claimed in claim 2, wherein: the centrifugal seat is characterized in that a bearing end cover (20) is arranged at the bottom of the centrifugal seat shell (3), a thrust bearing (21) matched with the main shaft (19) is arranged in the bearing end cover (20), a flange (22) matched with the thrust bearing (21) is arranged on the main shaft (19), and the two thrust bearings (21) are respectively arranged on two sides of the flange (22).

4. The automatic extraction type cell experiment centrifuge as claimed in claim 1, wherein: and a pressing wheel (23) is arranged at the top of the side wall of the centrifugal rotating frame (4), and the driving belt (11) is pressed by the pressing wheel (23).

5. The automatic extraction type cell experiment centrifuge as claimed in claim 1, wherein: be equipped with circular spout (24) on test tube rack (5), be equipped with on driven pulley (12) with circular spout (24) sliding connection's slide rail (25), circular motion is done along circular spout (24) in slide rail (25).

6. The automatic extraction type cell experiment centrifuge as claimed in claim 1, wherein: the inner surface of the test tube placing round hole (14) is provided with an elastic rubber gasket (26).

7. The automatic extraction type cell experiment centrifuge as claimed in claim 1, wherein: the top of the centrifugal seat shell (3) is provided with a shell cover (27).

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