Centrifugal rotor and centrifugal machine

Abstract

According to the centrifugal rotor and the centrifugal machine, a containing cavity is formed in the centrifugal rotor, a tube body of a centrifugal tube is completely wrapped by the containing cavity, only a tube opening cover is exposed, taking is convenient, a first balancing weight is arranged in the center of the upper end face of the centrifugal rotor, and radial second balancing weights are arranged on the periphery of the first balancing weight. A mounting block is arranged at the center of the lower end surface of the centrifugal rotor; counterweight holes are uniformly distributed around the mounting block. The centrifugal tube is wrapped in the centrifugal rotor, so that the centrifugal tube is not easy to deform and crack during rotation; meanwhile, the centrifugal rotor reduces air friction force, the temperature rise in the centrifugal machine is slow, and the influence on the temperature of substances in the centrifugal tube is small; the centrifugal rotor is good in balance degree and small in centrifugal force, and the upper limit of the rotating speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal equipment, in particular to a centrifugal rotor and a centrifuge. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate liquids from solid particles, or the components of a liquid-liquid mixture. Centrifugal technology is widely used in many fields, including biological and chemical research, medical and pharmaceutical research, and other fields. High-speed rotation separates solid-liquid mixtures into separate layers, yielding the desired substance.

[0003] When the centrifuge tube is placed in the centrifuge for centrifugation, part of the centrifuge tube is exposed outside and is easy to break during the centrifugation process, causing centrifugal failure and dirt inside the centrifuge, affecting the use of the equipment. Utility Model Content

[0004] In order to solve the above problems and other problems, the present invention is implemented through the following technical solutions: a main body; a placement cavity, a plurality of the placement cavities are evenly arranged at the edge of the main body; a first counterweight block, the first counterweight block is provided at the center of the upper end of the main body; a second counterweight block, a plurality of the second counterweight blocks are radially arranged around the first counterweight block.

[0005] In one embodiment, it further includes a mounting block and a counterweight hole. The mounting block is provided at the center of the lower end of the centrifugal rotor. A plurality of counterweight holes are evenly distributed around the mounting block. The counterweight holes correspond to the positions of the second counterweight block.

[0006] In one embodiment, the cross section of the inner groove of the mounting block is trapezoidal.

[0007] In one embodiment, the counterweight hole is a blind hole, and the diameter gradually decreases from the outside to the inside.

[0008] The utility model also provides a centrifuge, comprising any one of the centrifugal rotors described above.

[0009] In one embodiment, it further includes a shell, a pillar, a driving mechanism and a rotating shaft, the boss is installed at the bottom of the shell, a plurality of the pillars are installed at the bottom of the shell, the driving mechanism is fixed on the pillars, the lower end of the rotating shaft is connected to the driving mechanism, and the upper end is connected to the centrifugal rotor.

[0010] In one embodiment, a plurality of mounting holes are formed on the boss, and positions of the mounting holes correspond to positions of the pillars.

[0011] In one embodiment, the interior of the boss and the pillar is a hollow structure, and the wire passes through the mounting hole and the pillar to be connected to the driving mechanism.

[0012] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the centrifuge tube is wrapped inside the centrifuge rotor, and the centrifuge tube is not easily deformed or broken during rotation; at the same time, the centrifuge rotor reduces air friction, the temperature inside the centrifuge rises slowly, and the temperature of the material in the centrifuge tube is less affected; and the centrifuge rotor has good balance and small centrifugal force, which increases the upper limit of the rotation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Shown is a cross-sectional view of the centrifuge of the present invention;

[0014] Figure 2 Shown is a schematic diagram of the internal structure of the centrifuge of the present invention;

[0015] Figure 3 Shown is a schematic diagram of a centrifuge rotor of the present invention;

[0016] Figure 4 Shown is a bottom schematic diagram of the centrifuge rotor of the present invention.

[0017] 1-centrifuge; 11-housing; 12-boss; 121-mounting hole; 13-pillar; 14-driving mechanism; 15-connecting piece; 16-accommodating chamber; 17-centrifugal rotor; 171-body; 172-placement chamber; 173-first counterweight block; 174-second counterweight block; 175-mounting block; 176-counterweight hole; 18-rotating shaft; 19-control mechanism. DETAILED DESCRIPTION

[0018] See also Figures 1 to 4 The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0019] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those skilled in the art, and are not intended to limit the conditions for implementation of the present invention. Therefore, they have no substantial technical significance. Any structural modification, change in proportional relationship, or adjustment in size, without affecting the efficacy and purpose of the present invention, should still fall within the scope of the technical content disclosed in the present invention. At the same time, terms such as "left", "right", "up", "down", and "one" quoted in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships, without substantially changing the technical content, should also be considered as the scope of implementation of the present invention.

[0020] Please combine Figure 1 and Figure 2A centrifuge 1 includes a shell 11, a boss 12, a pillar 13, a drive mechanism 14, a connecting member 15, an accommodating chamber 16, a centrifugal rotor 17, a rotating shaft 18 and a control mechanism 19. The boss 12 is fixedly mounted on the bottom of the shell 11, and a plurality of pillars 13 are fixed on the boss 12; the connecting member 15 is fixed to the bottom of the drive mechanism 14, and the drive mechanism 14 is fixedly connected to the pillars 13 through the connecting member 15, so that the drive mechanism 14 is suspended; the upper end surface of the shell 11 is recessed downward to form the accommodating chamber 16, and the centrifugal rotor 17 is located in the accommodating chamber 16, one end of the rotating shaft 18 is connected to the drive mechanism 14, and the other end passes through the accommodating chamber 16 and is connected to the centrifugal rotor 17, and the drive mechanism 14 drives the centrifugal rotor 17 to rotate through the rotating shaft 18; the control mechanism 19 is arranged in the shell 11, electrically connected to the drive mechanism 14, and used to control the operation of the centrifugal rotor.

[0021] Specifically, three pillars 13 may be provided and arranged in an equilateral triangle.

[0022] Specifically, the interior of the pillar 13 and the boss 12 may be a hollow structure.

[0023] Furthermore, the boss 12 may be provided with a plurality of mounting holes 121 , and the positions of the mounting holes 121 correspond to the positions of the pillars 13 , so that the wires can pass through the mounting holes 121 and pass through the interior of the pillars 13 to connect with the driving mechanism 14 .

[0024] Please combine Figure 3 and Figure 4The upper and lower ends of the centrifugal rotor 17 are respectively inclined and recessed from the edge to the center position. The centrifugal rotor 17 includes a body 171, a placement cavity 172, a first counterweight 173, a second counterweight 174, a mounting block 175 and a counterweight hole 176. A plurality of placement cavities 172 are evenly distributed on the slope at the upper end of the body 171. The placement cavity 172 is used to place a centrifuge tube. The depth of the placement cavity 172 is greater than or equal to the length of the tube body. The diameter of the placement cavity 172 is smaller than the diameter of the centrifuge tube cap, that is, when the centrifuge tube is placed in the placement cavity 172, only the tube mouth cap is exposed outside the placement cavity 172, which is convenient for the operator to take; the first counterweight 173 is provided at the center of the body 171. The first counterweight 173 is arc-shaped. The second counterweight block 174 is radially arranged around the first counterweight block 173, and the second counterweight block 174 is bar-shaped. The first counterweight block 173 and the second counterweight block 174 are used to adjust the center of gravity of the centrifugal rotor 17; the mounting block 175 is arranged at the center position of the lower end surface of the main body 171, and the mounting block 175 is annular. The groove cross-section of the mounting block 175 is trapezoidal, and the rotating shaft 18 is fixedly connected to the main body 171 through the mounting block 175; a plurality of counterweight holes 176 are evenly distributed around the mounting block 175, and the counterweight holes 176 are blind holes. The diameter of the counterweight holes 176 gradually decreases from the outside to the inside. The counterweight holes 176 correspond to the position of the second counterweight block 174 and are used to balance the centrifugal rotor 17.

[0025] Specifically, the first counterweight 173 , the second counterweight 174 and the counterweight hole 176 are used to ensure the stability of the centrifugal rotor 17 during high-speed rotation, share the weight, make the centrifugal rotation more uniform, and effectively reduce the occurrence of vibration.

[0026] In summary, the present invention wraps the centrifuge tube inside the centrifuge rotor, so the centrifuge tube is not easily deformed or broken during rotation; at the same time, the centrifuge rotor reduces air friction, the temperature inside the centrifuge rises slowly, and the temperature of the material in the centrifuge tube is less affected; and the centrifuge rotor has good balance and low centrifugal force, which increases the upper limit of the rotation speed.

[0027] Therefore, the present invention effectively overcomes the shortcomings of the prior art and possesses high industrial value. The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A centrifugal rotor, characterized in that: include: ontology; A placement cavity, wherein a plurality of the placement cavities are evenly arranged at the edge of the body; A first counterweight block is provided at the center of the upper end of the body; A plurality of second counterweight blocks are radially arranged around the first counterweight block.

2. A centrifugal rotor according to claim 1, characterized in that: It also includes a mounting block and a counterweight hole. The center of the lower end of the centrifugal rotor is provided with a mounting block. A plurality of counterweight holes are evenly distributed around the mounting block. The counterweight holes correspond to the positions of the second counterweight block.

3. A centrifugal rotor according to claim 2, characterized in that: The cross section of the inner groove of the mounting block is trapezoidal.

4. A centrifugal rotor according to claim 2, characterized in that: The counterweight hole is a blind hole, and its diameter gradually decreases from the outside to the inside.

5. A centrifuge, characterized in that A centrifugal rotor comprising any one of claims 1 to 4.

6. The centrifuge according to claim 5, characterized in that It also includes a shell, pillars, a driving mechanism and a rotating shaft. A plurality of the pillars are installed at the bottom of the shell. The driving mechanism is fixed on the pillars. The lower end of the rotating shaft is connected to the driving mechanism, and the upper end is connected to the centrifugal rotor.

7. The centrifuge according to claim 6, characterized in that It also includes a boss, which is provided at the bottom of the shell and on which the pillar is fixedly mounted.

8. The centrifuge according to claim 7, characterized in that The boss is provided with a plurality of mounting holes, and the positions of the mounting holes correspond to the positions of the pillars.

9. The centrifuge according to claim 8, characterized in that The interiors of the boss and the pillar are hollow structures, and the wire passes through the mounting hole and the pillar to be connected with the driving mechanism.

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