CN220531914U - Centrifugal machine - Google Patents

Abstract

The utility model provides a centrifugal machine, which comprises a centrifugal machine rotor, a centrifugal machine rotating device and a centrifugal machine rotating device, wherein the centrifugal machine rotor is rotatably arranged; the connecting part is positioned on the centrifuge rotor; a protection member located on a peripheral side of a rotation axis of the centrifuge rotor; the centrifugal machine comprises a working state and a burst abnormal state; when the centrifugal machine is in a working state, the centrifugal machine drives the centrifugal machine rotor to rotate, the centrifugal machine rotor is not contacted with the protection component, and the protection component is positioned below the connecting part; when the centrifugal machine is in a sudden abnormal state, the protection component is contacted with the connecting part to prevent the centrifugal machine rotor from deviating from the rotating shaft _， The connection portion is rotatably provided. Protection deviceThe protection component not only can support the fallen centrifugal rotor, but also can enable the centrifugal rotor to continue to rotate on the protection component until the kinetic energy of the centrifugal rotor is consumed, and the centrifugal rotor is static, so that the damage to the centrifugal rotor caused by the moving centrifugal rotor is avoided, and the technical problem of potential safety hazard caused by sudden power failure or faults of the magnetic suspension centrifugal machine in the related technology is solved.

Description

Centrifugal machine

Technical Field

The utility model relates to the technical field of magnetic suspension, in particular to a centrifugal machine.

Background

A magnetic suspension centrifuge is a device for suspending and rotating a centrifuge rotor by using a magnetic suspension technology, thereby realizing centrifugal separation. In general, the use of the magnetic suspension centrifuge requires corresponding adjustment of the centrifuge settings to accommodate the required separation speed and acceleration, and also requires pretreatment of the centrifuged liquid as required. The centrifuge is usually set and operated as required to minimize misuse and failure.

When the magnetic suspension centrifuge is suddenly powered off or fails, the centrifuge rotor is possibly caused to vibrate or throw out, the damage to products, motors and centrifuges is caused by light weight, and the centrifuge rotor flies out due to heavy weight, so that great potential safety hazards and losses are usually brought.

Accordingly, the prior art is subject to further development.

Disclosure of Invention

The utility model aims to overcome the technical defects and provide a centrifugal machine so as to solve the technical problem of potential safety hazard caused by sudden power failure or faults of the magnetic suspension centrifugal machine in the related art.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: there is provided a centrifuge including a centrifuge rotor rotatably disposed; the connecting part is positioned on the centrifuge rotor; a protection member located on a peripheral side of a rotation axis of the centrifuge rotor; the centrifugal machine comprises a working state and a burst abnormal state; when the centrifugal machine is in a working state, the centrifugal machine drives the centrifugal machine rotor to rotate, and the protection component is positioned below the connecting part; when the centrifuge is in a sudden abnormal state, the protection member contacts with the connection portion to prevent the centrifuge rotor from deviating from the rotation shaft, and the connection portion is rotatably provided.

Further, the protection part is a plurality of, and a plurality of protection parts are all spherical structures, and the protection part rotationally sets up.

Further, the connecting part comprises a first connecting body, a second connecting body and a third connecting body, one end of the second connecting body is fixedly connected with the first connecting body, and the other end of the second connecting body is fixedly connected with the third connecting body; wherein, the external diameter of the first connector is greater than the external diameter of the second connector.

Further, the second connector is provided with a first contact surface for contacting with the protection component, and the first contact surface is a plane or an arc surface; or the second connector is provided with a first contact surface for contacting the protection component, the third connector is provided with a second contact surface for contacting the protection component, the first contact surface is connected with the second contact surface, and the first contact surface and the second contact surface are both plane surfaces; a preset included angle exists between the first contact surface and the second contact surface, and the preset included angle is an obtuse angle.

Further, the centrifugal machine also comprises a fixed seat, and an accommodating cavity is formed in the fixed seat; the protection component is arranged in the accommodating cavity; the fixing base is fixedly connected to the shell of the centrifugal machine, a through hole is formed in the fixing base, and the protection component is connected to the fixing base through the through hole.

Further, the centrifugal machine also comprises a connecting bearing, and the protecting component is a ball connected with the bearing; one end of the connecting rod penetrates through the through hole and is fixedly connected with the fixing seat, and the other end of the connecting rod is fixedly connected with the connecting bearing.

Further, the centrifugal machine also comprises a chassis, the chassis is fixedly connected to the shell of the centrifugal machine, and the fixing seat is arranged on the chassis; the chassis is provided with a first chute which extends along a preset direction; the protection component is arranged corresponding to the first chute; the sliding block is connected with the protection component and arranged in the first sliding groove, and the sliding block penetrates through the through hole; the slide is slidably connected relative to the first slide slot such that the distance between the protective member and the rotational axis of the centrifuge rotor is adjustably set.

Further, the fixing seat is of an annular structure, the chassis is of an annular structure, the outer diameter of the fixing seat is smaller than that of the chassis, a plurality of through holes are formed in the fixing seat, and the through holes are arranged around the fixing seat; the plurality of sliding blocks are arranged in a one-to-one correspondence with the plurality of through holes; the protection parts are a plurality of, and a plurality of protection parts are arranged in one-to-one correspondence with a plurality of sliding blocks.

Further, the slide block includes a first slide block and a second slide block, the second slide block is movably disposed in the through hole, the first slide block is connected with the second slide block, and the second slide block is smaller than the first slide block in height along a direction parallel to a rotation axis of the centrifuge rotor.

Further, the centrifugal machine also comprises a rotating disc, and a second chute is arranged on the rotating disc; the protection part further comprises a roller bearing, the roller bearing is sleeved on one side, far away from the first sliding groove, of the sliding block, the roller bearing is arranged in the second sliding groove, and the outer ring of the roller bearing is connected with the second sliding groove in a relatively sliding manner.

Further, the second chute is provided as an arc chute, and the rotating disc is rotatably provided relative to the chassis, so that the roller bearing moves in the second chute by rotating the rotating disc, and the roller bearing drives the protection component to move.

The beneficial effects are that:

by applying the technical scheme of the utility model, the centrifugal machine comprises a centrifugal machine rotor which is rotatably arranged; the connecting part is positioned on the centrifuge rotor; a protection member located on a peripheral side of a rotation axis of the centrifuge rotor; the centrifugal machine comprises a working state and a burst abnormal state; when the centrifugal machine is in a working state, the centrifugal machine drives the centrifugal machine rotor to rotate, and the protection component is positioned below the connecting part; when the centrifuge is in a sudden abnormal state, the protection member contacts with the connection portion to prevent the centrifuge rotor from deviating from the rotation shaft, and the connection portion is rotatably provided. By adopting the device, when the magnetic suspension centrifuge is unexpected or suddenly abnormal, the protection component not only can support the fallen centrifuge rotor, but also can enable the centrifuge rotor to continue to rotate on the protection component until the kinetic energy of the centrifuge rotor is consumed, and the centrifuge rotor is static, so that the damage to the centrifuge caused by the moving centrifuge rotor is avoided, the safety of the centrifuge is enhanced, and the technical problem of potential safety hazard caused when the magnetic suspension centrifuge is suddenly powered off or fails in the related art is solved.

Drawings

FIG. 1 is a schematic diagram of a centrifuge in an abnormal burst state according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a centrifuge according to an embodiment of the present utility model in operation;

FIG. 3 is an enlarged schematic view of portion A of FIG. 1;

FIG. 4 is a schematic view of a first embodiment of the present utility model employing a centrifuge;

FIG. 5 is a schematic diagram of a second embodiment of the present utility model employing a centrifuge;

FIG. 6 is a schematic diagram of a third embodiment of the present utility model employing a centrifuge;

FIG. 7 is a schematic diagram of a fourth embodiment of the present utility model employing a centrifuge;

FIG. 8 is a schematic top view of a centrifuge according to a fourth embodiment of the present utility model in which the centrifuge is used in a burst abnormal state;

fig. 9 is a schematic top view of a centrifuge according to a fourth embodiment of the present utility model in which the centrifuge is used.

Wherein the above figures include the following reference numerals:

1. a centrifuge rotor; 2. a connection part; 21. a first connecting body; 22. a second connector; 23. a third connector; 3. a protection member; 31. connecting a bearing; 32. a connecting rod; 33. a slide block; 331. a first slider; 332. a second slider; 34. a roller bearing; 4. a first contact surface; 5. a second contact surface; 6. a fixing seat; 61. a receiving chamber; 7. a chassis; 71. a first chute; 8. a rotating disc; 81. and a second chute.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

According to an embodiment of the present utility model, there is provided a centrifuge, referring to fig. 1 to 9, including a centrifuge rotor 1 rotatably provided; a connection part 2 located on the centrifuge rotor 1; a protection member 3, the protection member 3 being located on a circumferential side of the rotational axis of the centrifuge rotor 1; the centrifugal machine comprises a working state and a burst abnormal state; when the centrifugal machine is in a working state, the centrifugal machine drives the centrifugal machine rotor 1 to rotate, and the protection part 3 is positioned below the connecting part 2; when the centrifuge is in a sudden abnormal state, the protection member 3 contacts with the connection part 2 to prevent the centrifuge rotor 1 from deviating from the rotation axis, and the connection part 2 is rotatably provided.

By adopting the device, when the magnetic suspension centrifuge is unexpected or suddenly abnormal, the protection component 3 is in contact with the connecting part 2, the protection component 3 not only can support the fallen centrifuge rotor 1, but also can enable the centrifuge rotor 1 to continue to rotate on the protection component 3 until the kinetic energy of the centrifuge rotor 1 is consumed until the centrifuge rotor is static, thereby avoiding damage to the centrifuge caused by the moving centrifuge rotor 1, enhancing the safety of the centrifuge, and solving the technical problem of potential safety hazard caused by sudden power failure or faults of the magnetic suspension centrifuge in the related technology.

When the centrifuge is in an abnormal state, the centrifuge rotor 1 loses its driving force and is free to deviate from the rotation axis, because the centrifuge rotor 1 and the protection member 3 do not contact each other during operation of the centrifuge.

When the centrifugal machine is abnormal, the centrifugal machine rotor can be slowly stopped by increasing the magnetic resistance.

When the magnetic suspension centrifuge starts to work, the centrifuge drives the centrifuge rotor 1 to ascend and rotate, the protection component 3 is positioned below the connecting part 2, and the connecting part 2 and the protection component 3 are in a non-contact state; when the magnetic suspension centrifuge is abnormal suddenly, the connecting part 2 and the protecting part 3 are in contact.

Referring to fig. 1 to 2, the protection member 3 is provided in plurality, the protection members 3 are each of a spherical structure, and the protection members 3 are rotatably provided.

Preferably, the protection member 3 is provided as a bullseye bearing.

By adopting the device, the supporting force to the centrifugal machine rotor 1 can be increased by the plurality of protection components 3, so that when the connecting part 2 and the protection components 3 are in a contact state, the connection parts are supported more firmly, the reliability of the centrifugal machine is improved, the protection components 3 with spherical structures can reduce the friction force between the protection components 3 and the connecting part 2, and the centrifugal machine rotor 1 can continue to rotate on the protection components 3.

Preferably, the plurality of protection members 3 are uniformly distributed in a circumferential array with the center of the centrifuge rotor 1 as a circle point.

Referring to fig. 2, the connection part 2 includes a first connection body 21, a second connection body 22, and a third connection body 23, one end of the second connection body 22 is fixedly connected with the first connection body 21, and the other end of the second connection body 22 is fixedly connected with the third connection body 23; wherein the outer diameter of the first connector 21 is larger than the outer diameter of the second connector 22.

By adopting the device, the shape of the connecting part 2 can increase the contact area between the connecting part 2 and the protecting part 3, so that the supporting effect is better.

Referring to fig. 1 to 5, the second connecting body 22 has a first contact surface 4 for contacting the protection member 3, the first contact surface 4 being a plane or an arc surface; alternatively, the second connecting body 22 has a first contact surface 4 for contacting the protective member 3, the third connecting body 23 has a second contact surface 5 for contacting the protective member 3, the first contact surface 4 and the second contact surface 5 are connected, and the first contact surface 4 and the second contact surface 5 are both planar; a preset included angle exists between the first contact surface 4 and the second contact surface 5, and the preset included angle is an obtuse angle.

By adopting the device, the proper contact surface can increase the contact area of the connecting part 2 and the protecting part 3, so that the support of the connecting part and the protecting part 3 is more stable, the friction force generated during contact can be reduced, the damage of the centrifugal machine is reduced, the centrifugal machine rotor 1 can be further rotated on the protecting part 3 until the kinetic energy consumption of the centrifugal machine rotor 1 is completed, and the safety of the centrifugal machine is enhanced. The utility model provides various contact surfaces, which can be selected according to actual needs when in use, thereby expanding the application range of the centrifugal machine.

Referring to fig. 1 to 9, the centrifuge further includes a fixing base 6, and the fixing base 6 has a receiving cavity 61 therein; the protection member 3 is disposed in the accommodation chamber 61; the fixed seat 6 is fixedly connected to the shell of the centrifugal machine, and a through hole is formed in the fixed seat 6; the protection member 3 is connected to the fixing base 6 through the through hole.

By adopting the device, the stability of the protection component 3 is increased by the arrangement of the fixing seat 6, so that the connection part 2 is more stable to be supported when being in a contact state with the protection component 3, and the reliability of the centrifugal machine is further increased.

Referring to fig. 3 to 9, the centrifuge further includes a connection bearing 31, and the protection member 3 is a ball connected to the bearing 31; the connecting rod 32, one end of the connecting rod 32 passes through the through hole and is fixedly connected with the fixed seat 6, and the other end of the connecting rod 32 is fixedly connected with the connecting bearing 31; the ball 30, the ball 30 is installed in the connection bearing 31, and the ball 30 is rotatably connected to the connection bearing 31.

By adopting the device, the protection component 3 is arranged to be connected with the balls of the bearing 31, the shape of the balls can effectively reduce the friction force generated when the balls are in contact with the connecting part 2, the damage of the centrifugal machine is reduced, the centrifugal machine rotor 1 can be enabled to continue to rotate on the balls until the kinetic energy of the centrifugal machine rotor 1 is consumed, and the safety of the centrifugal machine is enhanced.

Referring to fig. 6, the centrifuge further comprises a chassis 7, the chassis 7 is fixedly connected to the shell of the centrifuge, and the fixing seat 6 is arranged on the chassis 7; the chassis 7 is provided with a first chute 71, and the first chute 71 extends along a preset direction; the protection member 3 is provided corresponding to the first chute 71; the sliding block 33, the protection component 3 is connected with the sliding block 33, the sliding block 33 is arranged in the first sliding groove 71, and the sliding block 33 is penetrated in the through hole; the slide 33 is connected slidably relative to the first slide groove 71, so that the distance between the protective part 3 and the rotational axis of the centrifuge rotor 1 is arranged adjustably.

With the above-described device, the protection member 3 can be brought close to or away from the centrifuge rotor 1 by sliding the slider 33 in the first slide groove 71; when the magnetic suspension centrifuge is abnormal suddenly, the protection component 3 is close to the centrifuge rotor 1 until the protection component 3 clamps the connection part 2 on the centrifuge rotor 1, when the magnetic suspension centrifuge starts to work, the protection component 3 is far away from the centrifuge rotor 1, the centrifuge drives the centrifuge rotor 1 to ascend and rotate, the protection component 3 is positioned below the connection part 2, the connection part 2 and the protection component 3 are in a non-contact state, and when the magnetic suspension centrifuge works, the protection component 3 is close to the centrifuge rotor 1 until the protection component 3 clamps the connection part 2 on the centrifuge rotor 1.

The connection part 2 in the present embodiment may be a part detachably attached to the centrifuge rotor 1, or may be a part of the body of the centrifuge rotor 1.

It will be appreciated that the operating condition of the centrifuge can be detected by the sensor to drive the slider 33 to slide in the first chute.

Referring to fig. 6 to 9, the fixing base 6 has an annular structure, the chassis 7 has an annular structure, the outer diameter of the fixing base 6 is smaller than that of the chassis 7, a plurality of through holes are formed in the fixing base 6, and the through holes are arranged around the fixing base 6; the number of the sliding blocks 33 is plural, and the sliding blocks are arranged in one-to-one correspondence with the through holes; the protection parts are a plurality of, and a plurality of protection parts are arranged in one-to-one correspondence with a plurality of sliding blocks.

By adopting the device, the plurality of the sliding blocks 33 are correspondingly provided with the plurality of the protection components 3, and the plurality of the protection components 3 can increase the supporting force on the centrifuge rotor 1, so that the connecting part 2 is clamped by the protection components 3 more firmly, and the reliability of the centrifuge is increased; the fixing seat 6 and the chassis 7 are of annular structures, so that the plurality of protection components 3 are distributed in a circumferential array by taking the center of the centrifuge rotor 1 as a round point, and the reliability of the centrifuge is improved in the distribution mode.

Referring to fig. 6, the slider 33 includes a first slider 331 and a second slider 332, the second slider 332 being movably disposed in the through hole, the first slider 331 being connected to the second slider 332, and the second slider 332 being smaller in height than the first slider 331 in a direction parallel to the rotational axis of the centrifuge rotor 1.

By adopting the device, the second sliding block 332 is movably arranged in the through hole, so that the sliding block 33 is prevented from being separated from the first sliding groove 71, the limiting effect is achieved, and the reliability of the centrifugal machine is improved.

Referring to fig. 7 to 9, the centrifuge further includes a rotating disk 8, and a second chute 81 is provided on the rotating disk 8; the protection component 3 further comprises a roller bearing 34, the roller bearing 34 is sleeved on one side of the sliding block 33 far away from the first sliding groove 71, the roller bearing 34 is arranged in the second sliding groove 81, and the outer ring of the roller bearing 34 is connected with the second sliding groove 81 in a relatively sliding manner.

With the above device, the roller bearing 34 is driven to move in the second sliding groove 81 by the rotation of the rotating disc 8, so that the sliding block 33 is driven to slide in the first sliding groove 71, and the protection component 3 is close to or far from the centrifuge rotor 1.

Preferably, when the rotating disk 8 rotates counterclockwise, the protection member 3 contacts the connection part 2 and clamps the connection part 2 and the centrifuge rotor 1; when the rotor disk 8 rotates clockwise, the protection member 3 releases the connection 2 and the centrifuge rotor 1 away from the centrifuge rotor 1.

Referring to fig. 7 to 9, the second sliding groove 81 is provided as an arc-shaped sliding groove, and the rotating disk 8 is rotatably provided with respect to the chassis 7, so that the roller bearing 34 moves within the second sliding groove 81 by rotating the rotating disk 8, thereby causing the roller bearing 34 to move the protection member 3.

Preferably, the working state of the centrifugal machine can be detected through a sensor, and the rotating disc 8 is driven through motor gear transmission or synchronous belt transmission, so that the rotating disc 8 drives the protection component 3 to move, and the centrifugal machine rotor 1 is clamped and loosened.

The operation principle of the centrifuge of the present embodiment is described as follows:

description of the working principles of the first and second embodiments: as shown in fig. 1 to 5, when the magnetic levitation centrifuge in the operating state is suddenly abnormal, the centrifuge rotor 1 and the connection part 2 fall on the protection member 3 in a contact state with the protection member 3; when the magnetic suspension centrifuge starts to work, the centrifuge drives the centrifuge rotor 1 to ascend and rotate, the protection component 3 is positioned below the connecting part 2, and the centrifuge rotor 1, the connecting part 2 and the protection component 3 are in a non-contact state; when the magnetic suspension centrifuge is finished, the centrifuge rotor 1 and the connecting part 2 fall on the protecting component 3 and are in contact with the protecting component 3.

Description of the working principle of the third embodiment: as shown in fig. 6, when the magnetic suspension centrifuge in the working state is suddenly abnormal, the driving slide block 33 moves in the first chute 71 in the direction approaching the centrifuge rotor 1 to make the protecting component 3 approach the centrifuge rotor 1, at this time, the protecting component 3 clamps the connecting part 2 on the centrifuge rotor 1, when the magnetic suspension centrifuge starts working, the driving slide block 33 moves in the first chute 71 in the direction away from the centrifuge rotor 1, the protecting component 3 moves away from the centrifuge rotor 1, the centrifuge drives the centrifuge rotor 1 to rotate upward, the centrifuge rotor 1 and the connecting part 2 are in a non-contact state with the protecting component 3, and when the magnetic suspension centrifuge finishes working, the driving slide block 33 moves in the first chute 71 in the direction approaching the centrifuge rotor 1 to make the protecting component 3 approach the centrifuge rotor 1 until the protecting component 3 clamps the connecting part 2 on the centrifuge rotor 1.

Description of the working principle of the fourth embodiment: as shown in fig. 7 to 9, when the magnetic suspension centrifuge in the working state suddenly breaks out, the rotating disk 8 is driven to rotate in the anticlockwise direction, the sliding block 33 is driven to move in the first sliding groove 71 in the direction approaching to the centrifuge rotor 1, the protection component 3 is made to approach to the centrifuge rotor 1 until the protection component 3 clamps the connecting part 2 on the centrifuge rotor 1; when the magnetic suspension centrifuge starts to work, the rotating disc 8 is driven to rotate clockwise, the driving sliding block 33 is driven to move in the direction away from the centrifuge rotor 1 in the first sliding groove 71, the protection component 3 is away from the centrifuge rotor 1, the centrifuge drives the centrifuge rotor 1 to ascend and rotate, the centrifuge rotor 1, the connecting part 2 and the protection component 3 are in a non-contact state, when the magnetic suspension centrifuge finishes working, the rotating disc 8 is driven to rotate anticlockwise, the sliding block 33 is driven to move in the direction close to the centrifuge rotor 1 in the first sliding groove 71, the protection component 3 is made to be close to the centrifuge rotor 1, and the protection component 3 clamps the connecting part 2 on the centrifuge rotor 1.

The beneficial effects are that:

when the magnetic suspension centrifuge is unexpected or suddenly abnormal, the protection component is in contact with the connecting part, the protection component not only can support the fallen centrifuge rotor, but also can enable the centrifuge rotor to continue to rotate on the protection component until the kinetic energy of the centrifuge rotor is consumed, and the centrifuge rotor is static, so that the damage to the centrifuge caused by the moving centrifuge rotor is avoided, the safety of the centrifuge is enhanced, and the technical problem of potential safety hazards caused when the magnetic suspension centrifuge is suddenly powered off or fails in the related art is solved.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments, and this embodiment is not described herein.

The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.

The integrated units in the above embodiments may be stored in the above-described computer-readable storage medium if implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause one or more computer devices (which may be personal computers, servers or network devices, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application.

In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In several embodiments provided in the present application, it should be understood that the disclosed client may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, such as the division of the units, is merely a logical function division, and may be implemented in another manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application and are intended to be comprehended within the scope of the present application.

Claims (11)

1. A centrifuge, comprising:

a centrifuge rotor (1) rotatably provided;

a connection part (2) located on the centrifuge rotor (1);

a protection member (3), the protection member (3) being located on a circumferential side of a rotation axis of the centrifuge rotor (1); the centrifugal machine comprises a working state and a burst abnormal state; when the centrifugal machine is in the working state, the centrifugal machine drives the centrifugal machine rotor (1) to rotate, and the protection component (3) is positioned below the connecting part (2); when the centrifuge is in the burst abnormal state, the protection member (3) is in contact with the connection portion (2) to prevent the centrifuge rotor (1) from deviating from the rotation axis, the connection portion (2) being rotatably provided.

2. The centrifuge according to claim 1, characterized in that the number of the protection members (3) is plural, the number of the protection members (3) is spherical, and the protection members (3) are rotatably provided.

3. The centrifuge according to claim 1, characterized in that the connecting part (2) comprises a first connecting body (21), a second connecting body (22) and a third connecting body (23), one end of the second connecting body (22) is fixedly connected with the first connecting body (21), and the other end of the second connecting body (22) is fixedly connected with the third connecting body (23);

wherein the outer diameter of the first connector (21) is larger than the outer diameter of the second connector (22).

4. The centrifuge according to claim 3, wherein the liquid-phase separator is provided,

the second connector (22) is provided with a first contact surface (4) for contacting with the protection component (3), and the first contact surface (4) is a plane or an arc surface; or,

the second connector (22) is provided with a first contact surface (4) for contacting the protection component (3), the third connector (23) is provided with a second contact surface (5) for contacting the protection component (3), the first contact surface (4) is connected with the second contact surface (5), and the first contact surface (4) and the second contact surface (5) are both plane surfaces; a preset included angle is formed between the first contact surface (4) and the second contact surface (5), and the preset included angle is an obtuse angle.

5. The centrifuge of claim 1, further comprising:

the fixing seat (6), the said fixing seat (6) has accommodates the cavity (61) in vivo; the protection component (3) is arranged in the accommodating cavity (61); the fixed seat (6) is fixedly connected to the shell of the centrifugal machine, and a through hole is formed in the fixed seat (6); the protection component (3) is connected to the fixing seat (6) through the through hole.

6. The centrifuge of claim 5, wherein the centrifuge comprises:

a connecting bearing (31), wherein the protection component (3) is a ball of the connecting bearing (31);

the connecting rod (32), one end of connecting rod (32) passes through the through-hole with fixing base (6) fixed connection, the other end of connecting rod (32) with connecting bearing (31) fixed connection.

7. The centrifuge of claim 5, further comprising:

the chassis (7), the said chassis (7) is fixedly connected to said outer casing of centrifuge, the said fixing base (6) is set up on said chassis (7); the chassis (7) is provided with a first chute (71), and the first chute (71) extends along a preset direction; the protection component (3) is arranged corresponding to the first chute (71);

the sliding block (33), the protection component (3) is connected with the sliding block (33), the sliding block (33) is arranged in the first sliding groove (71), and the sliding block (33) is penetrated in the through hole; the slide (33) is connected to the first slide groove (71) in a relatively slidable manner, so that the distance between the protective part (3) and the rotation axis of the centrifuge rotor (1) can be set in an adjustable manner.

8. The centrifuge according to claim 7, characterized in that the fixing base (6) has an annular structure, the chassis (7) has an annular structure, the outer diameter of the fixing base (6) is smaller than the outer diameter of the chassis (7), a plurality of through holes are arranged on the fixing base (6), and the through holes are arranged around the fixing base (6); the number of the sliding blocks (33) is plural, and the sliding blocks (33) are arranged in one-to-one correspondence with the through holes; the number of the protection members (3) is plural, and the plurality of the protection members (3) are provided in one-to-one correspondence with the plurality of the sliders (33).

9. The centrifuge according to claim 7, characterized in that the slide (33) comprises a first slide (331) and a second slide (332), the second slide (332) being movably arranged in the through-hole, the first slide (331) being connected to the second slide (332), the second slide (332) being smaller than the height of the first slide (331) in a direction parallel to the rotational axis of the centrifuge rotor (1).

10. The centrifuge of claim 8, further comprising:

a rotating disc (8), wherein a second sliding groove (81) is arranged on the rotating disc (8);

the protection component (3) further comprises a roller bearing (34), the roller bearing (34) is sleeved on one side, far away from the first sliding groove (71), of the sliding block (33), the roller bearing (34) is arranged in the second sliding groove (81), and the outer ring of the roller bearing (34) is connected with the second sliding groove (81) in a relatively sliding mode.

11. The centrifuge of claim 10, wherein the centrifuge is configured to perform the steps of,

the second sliding groove (81) is arranged as an arc-shaped sliding groove, and the rotating disc (8) is rotatably arranged relative to the chassis (7) so as to enable the roller bearing (34) to move in the second sliding groove (81) through rotating the rotating disc (8), so that the roller bearing (34) drives the protection component (3) to move.