CN217002876U - A damping device and centrifuge for centrifuge - Google Patents

Abstract

The utility model relates to a centrifuge technical field discloses a damping device and centrifuge for centrifuge, and centrifuge includes treats damping member for centrifuge's damping device includes: an elastic member; the connecting block comprises a first connecting block, the first connecting block is arranged at one end of the elastic piece and is suitable for being connected with the piece to be damped so as to damp the piece to be damped through the elastic piece, and the first connecting block is provided with a limiting hole; the gag lever post extends along the deformation direction of elastic component, and one end passes spacing hole and can follow self extending direction motion for spacing hole, along gag lever post circumference, the lateral wall of gag lever post and the at least partial looks butt of the inside wall in spacing hole for the first connecting block of restriction radially rocks along the gag lever post for the gag lever post. Therefore, the vibration of the to-be-damped piece in the vertical direction can be reduced, the shaking of the to-be-damped piece can be limited, the damping effect is improved, and the to-be-damped piece is better protected.

Description

A damping device and centrifuge for centrifuge

Technical Field

The application relates to the technical field of centrifuges, for example to a damping device for a centrifuge and the centrifuge.

Background

At present, a centrifuge is a common device in a laboratory, and is widely applied to chemical, petroleum, food, medical and other departments. Because the operating principle of the centrifuge is that the motor drives the rotor to rotate at a high speed, the high-speed rotation of the motor can generate vibration in the process, and the whole centrifuge is further caused to generate vibration. The vibration generated during the operation of the centrifuge can affect the performance and the working stability of an internal system of the centrifuge and can also induce the fatigue crack of a body structure, thereby endangering the service life and the safety of the centrifuge structure. Therefore, the problem of vibration of centrifuges has been one of the major research directions.

The prior art discloses an automatic centrifuge used in a potassium fluoborate process, which comprises a frame, a centrifugal cylinder, a top cover, shock absorption support legs and grooves, wherein the centrifugal cylinder is connected in the frame, two sides of the centrifugal cylinder are provided with rotating bodies, the rotating bodies are rotatably connected with a shaft, one end of the shaft is fixedly arranged on the inner side of the frame, the top cover is hinged and fixed above the centrifugal cylinder, the lower part of the top cover is provided with a convex ring, the lower surface of the frame is connected with the shock absorption support legs, the upper part of the centrifugal cylinder is provided with the grooves, the grooves are connected with convex ring magnetic buckles, two side walls of the grooves are bonded and fixed with rubber pads, and magnetic sheets are embedded in the rubber pads; the shock attenuation stabilizer blade comprises last connecting block, lower connecting block, slide bar, damping spring, goes up the connecting block and passes through sliding rod connection with lower connecting block, and the slide bar outside sets up damping spring, the fixed stopper of surface bonding on the lower connecting block.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the support (treat the damper) of centrifuge in operation or transportation not only can take place the vibrations of upper and lower direction, still can produce rocking of left and right sides direction, and the shock attenuation stabilizer blade can be less support (treat the damper) vibrations of upper and lower direction, nevertheless can't avoid rocking of support (treat the damper) left and right sides direction.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a damping device for a centrifugal machine and the centrifugal machine, and aims to solve the problem of avoiding shaking of a to-be-damped piece on the basis of reducing the vibration of the to-be-damped piece.

According to an embodiment of a first aspect of the present application, there is provided a shock-absorbing device for a centrifuge including a member to be shock-absorbed, the shock-absorbing device for a centrifuge including: an elastic member; the connecting block comprises a first connecting block, the first connecting block is arranged at one end of the elastic part and is suitable for being connected with the part to be damped so as to damp the part to be damped through the elastic part, and the first connecting block is provided with a limiting hole; the limiting rod extends along the deformation direction of the elastic piece, one end of the limiting rod penetrates through the limiting hole and can move relative to the limiting hole along the extending direction of the limiting rod, the outer side wall of the limiting rod is in butt joint with at least part of the inner side wall of the limiting hole in the circumferential direction of the limiting rod, and the first connecting block is used for limiting the first connecting block to radially shake relative to the limiting rod along the limiting rod.

Optionally, the member to be damped includes an installation portion, and the first connection block includes: the elastic piece and the mounting part are respectively arranged on two opposite sides of the first sub-connecting block, and the first sub-connecting block is provided with a first connecting part; and the second sub-connecting block is provided with a first connecting matching part matched with the first connecting part, so that the second sub-connecting block is connected with the first sub-connecting block, and the mounting part is pressed between the first sub-connecting block and the second sub-connecting block.

Optionally, the connection block further comprises: and the elastic piece is supported between the second connecting block and the first connecting block so as to fix the elastic piece.

Optionally, centrifuge still includes the mounting panel, the mounting panel is equipped with second connecting portion, the second connecting block be equipped with be suitable for with second connecting portion matched with second connection cooperation portion, so that the second connecting block with the mounting panel is connected.

Optionally, centrifuge still includes the fixed plate, the one end of gag lever post is passed be suitable for after the spacing hole be connected with the fixed plate, the other end of gag lever post with the second connecting block is connected or pass the second connecting block be suitable for with the mounting panel is connected, in order to fix the gag lever post.

Optionally, the connecting block is at least partially of an elastic material.

Optionally, the inner side wall of the limiting hole is provided with a groove to reduce the rigidity of the inner side wall of the limiting hole.

According to an embodiment of a second aspect of the present application, there is provided a centrifuge comprising: the part to be damped comprises the motor; according to the damping device for the centrifugal machine, the first connecting block is connected with the to-be-damped piece, and the damping device for the centrifugal machine is used for damping the to-be-damped piece and limiting the to-be-damped piece to radially shake along the limiting rod.

Optionally, the centrifuge further comprises: and the mounting plate is provided with a second connecting part, and the second connecting part is matched with the second connecting matching part so that the mounting plate is connected with the second connecting block.

Optionally, the centrifuge further comprises: and one end of the limiting rod penetrates through the limiting hole to be connected with the fixing plate and is used for fixing the limiting rod.

The damping device and centrifuge for centrifuge that this disclosed embodiment provided can realize following technological effect:

the first connecting block is arranged at one end of the elastic piece and is connected with the piece to be damped. When the to-be-damped piece vibrates, the elastic piece can absorb the vibration of the to-be-damped piece and damp the to-be-damped piece. The limiting rod extends along the deformation direction of the elastic piece, and one end of the limiting rod penetrates through the limiting hole and can move along the extending direction of the limiting rod relative to the limiting hole. That is to say, treat that the vibrations of bumper shock attenuation piece drive first connecting block vibrations to drive spacing hole along gag lever post extending direction motion. When waiting that the damping piece drives first connecting block and rocking, the lateral wall of gag lever post and the at least partial looks butt of the inside wall in spacing hole can restrict first connecting block and radially rock along the gag lever post. Therefore, the vibration of the to-be-damped piece can be reduced, the shaking of the to-be-damped piece can be limited, the damping effect is improved, and the to-be-damped piece is better protected.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic structural diagram of a damping device for a centrifuge according to an embodiment of the present disclosure;

FIG. 2 is a partially schematic, perspective view of a centrifuge according to embodiments of the present disclosure;

FIG. 3 is a partial schematic structural view from another perspective of a centrifuge provided by embodiments of the present disclosure;

fig. 4 is a schematic sectional view along a-a in fig. 3.

Reference numerals are as follows:

10. an elastic member; 20. connecting blocks; 21. a first connection block; 210. a limiting hole; 2101. a groove; 211. a first sub-connecting block; 2110. a first connection portion; 212. a second sub-connecting block; 2121. a first connection fitting portion; 22. a second connecting block; 221. a second connection fitting portion; 30. a limiting rod; 40. a member to be damped; 401. an installation part; 402. a motor; 50. mounting a plate; 501. a second connecting portion; 60. and (5) fixing the plate.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 2 to 4, the present disclosure provides a centrifuge including a member to be damped 40 and a damping device for the centrifuge. The member to be damped 40 includes a motor 402. The damping device for the centrifugal machine comprises a first connecting block 21, the first connecting block 21 is connected with the to-be-damped piece 40, and the damping device for the centrifugal machine is used for damping the to-be-damped piece 40 and limiting the to-be-damped piece 40 to radially shake along the limiting rod 30.

The centrifugation is to use the strong centrifugal force generated by the high-speed rotation of the centrifuge rotor to accelerate the sedimentation velocity of particles in the liquid and separate the substances with different sedimentation coefficients and buoyancy densities in the sample. When a suspension containing fine particles is left to stand still, the suspended particles gradually sink due to the action of the gravitational field. The heavier the particles, the faster they sink, whereas particles of lower density than the liquid will float up. The speed at which the particles move under the gravitational field is related to the size, morphology and density of the particles, and in turn to the strength of the gravitational field and the viscosity of the liquid. Like red blood cell sized particles, several microns in diameter, their sedimentation process can be observed under normal gravitational forces. Furthermore, substances also undergo diffusion phenomena when they settle in the medium. Diffusion is unconditionally absolute. Diffusion is inversely proportional to the mass of the substance, with smaller particles spreading more severely. Sedimentation is relative and conditional and requires external force to move. Sedimentation is directly proportional to the weight of the object, the larger the particles, the faster the sedimentation. For particles smaller than a few microns, such as viruses or proteins, which are colloidal or semi-colloidal in solution, it is not possible to observe the sedimentation process by gravity alone. Since the smaller the particles, the slower the sedimentation and the more severe the diffusion phenomenon. It is necessary to use a centrifuge to generate a strong centrifugal force to force the particles against diffusion to produce a settling motion.

As shown in fig. 1, the embodiment of the present disclosure provides a shock-absorbing device for a centrifuge, which includes an elastic member 10, a connection block 20, and a stopper 30. The connecting block 20 includes a first connecting block 21, and the first connecting block 21 is disposed at one end of the elastic member 10 and is adapted to be connected with the member to be damped 40 to damp the member to be damped 40 through the elastic member 10. The first connecting block 21 is provided with a limiting hole 210. The stopper rod 30 extends along the deformation direction of the elastic member 10, and has one end passing through the stopper hole 210 and capable of moving in the extending direction thereof with respect to the stopper hole 210. Along gag lever post 30 circumference, the lateral wall of gag lever post 30 and the at least partial looks butt of the inside wall of spacing hole 210 for the first connecting block 21 of restriction rocks along gag lever post 30 radial for gag lever post 30.

With this alternative embodiment, the first connecting block 21 is provided at one end of the elastic member 10 and is connected to the member to be damped 40. When the member to be damped 40 vibrates, the elastic member 10 can absorb the vibration of the member to be damped 40, and the member to be damped 40 is damped. The stopper rod 30 extends along the deformation direction of the elastic member 10, and has one end passing through the stopper hole 210 and capable of moving in the extending direction thereof with respect to the stopper hole 210. That is, the to-be-damped piece 40 vibrates to drive the first connecting block 21 to vibrate, so as to drive the limiting hole 210 to move along the extending direction of the limiting rod 30. When the to-be-damped piece 40 drives the first connecting block 21 to swing, the outer side wall of the limiting rod 30 is in contact with at least part of the inner side wall of the limiting hole 210, so that the first connecting block 21 can be limited from radially swinging along the limiting rod 30 relative to the limiting rod 30. Therefore, the vibration of the to-be-damped part 40 can be reduced, the shaking of the to-be-damped part 40 can be limited, the damping effect is improved, and the to-be-damped part 40 is better protected.

Alternatively, the elastic member 10 includes, but is not limited to, a spring, an elastic diaphragm, and the like.

Optionally, the stop bar 30 is disposed inside the elastic member 10.

As shown in fig. 1 to 4, in some alternative embodiments, the member to be damped 40 includes a mounting portion 401, and the first connection block 21 includes a first sub-connection block 211 and a second sub-connection block 212. The opposite sides of the first sub-connecting block 211 are respectively provided with an elastic member 10 and an installation part 401, and the first sub-connecting block 211 is provided with a first connection part 2110. The second sub-connection block 212 is provided with a first connection fitting portion 2121 fitted with the first connection portion 2110 to connect the second sub-connection block 212 and the first sub-connection block 211, thereby press-fitting the mounting portion 401 between the first and second sub-connection blocks 211 and 212.

With this alternative embodiment, the first sub-connection block and the second sub-connection block are connected by the first connection portion 2110 and the first connection fitting portion 2121, and the mounting portion 401 is pressed between the first sub-connection block 211 and the second sub-connection block 212, improving the connection stability of the first connection block 21 and the mounting portion 401.

Alternatively, the number of the first connection portions 2110 is plural, and the plural first connection portions 2110 are provided at intervals to the first sub-connection block 211. The first connection fitting portions 2121 and the first connection portions 2110 are equal in number and correspond to one another.

Alternatively, the first coupling portion 2110 includes one of a bolt and a screw hole that are fitted, and the first coupling-fitting portion 2121 includes the other of a bolt and a screw hole that are fitted, so as to press the mounting portion 401 between the first sub-connection block 211 and the second sub-connection block 212.

Alternatively, the first connection portion 2110 includes one of a snap and a snap that are fitted, and the first connection fitting portion 2121 includes the other of a snap and a snap that are fitted to press the mounting portion 401 between the first sub-connection block 211 and the second sub-connection block 212.

In some alternative embodiments, connection block 20 further includes a second connection block 22. The elastic member 10 is supported between the second connection block 22 and the first connection block 21 to fix the elastic member 10.

With this alternative embodiment, one end of the elastic member 10 is provided with a first connection block 21, the first connection block 21 is connected with the member 40 to be damped to transmit the vibration force of the member 40 to be damped to the elastic member 10, and the elastic member 10 absorbs the vibration force to damp the member 40 to be damped. The other end of the elastic element 10 is provided with a second connecting block 22, and the second connecting block 22 plays a role in relatively fixing the elastic element 10, so as to limit the displacement of the other end of the elastic element 10 after the elastic element 10 is subjected to the vibration force.

Alternatively, both ends of the elastic member 10 are detachably disposed with the first connection block 21 and the second connection block 22, respectively.

Optionally, the first connecting block 21 includes a first fixing block and a first mounting block connected. The first fixing block is used to connect with the mounting portion 401. The cross-sectional area of the first mounting block is matched with the cross-sectional area of the inner space of the elastic member 10, and the elastic member 10 is sleeved on the first mounting block, so that one end of the elastic member 10 is detachably connected with the first mounting block.

In some alternative embodiments, the centrifuge further includes a mounting plate 50, the mounting plate 50 is provided with a second connecting portion 501, and the second connection block 22 is provided with a second connection fitting portion 221 fitted with the second connecting portion 501 to connect the second connection block 22 with the mounting plate 50.

With this alternative embodiment, second connecting block 22 is connected to mounting plate 50 via second connecting portion 501 and second connecting fitting portion 221, and second connecting block 22 is provided at the other end of elastic member 10. That is, the other end of the elastic member 10 is provided to the mounting plate 50, thereby fixing the elastic member 10.

Optionally, the second connecting block 22 includes a second fixing block and a second mounting block connected. The second fixed block is used to connect with the mounting plate 50. The cross-sectional area of the second mounting block is matched with the cross-sectional area of the inner space of the elastic member 10, and the elastic member 10 is sleeved on the second mounting block, so that the other end of the elastic member 10 is detachably connected with the second mounting block.

Alternatively, the second connecting portion 501 includes one of a mating bolt and a screw hole, and the second connecting mating portion 221 includes the other of a mating bolt and a screw hole.

Alternatively, the second connecting portion 501 comprises one of a mating card slot and a snap, and the second connecting mating portion 221 comprises the other of a mating card slot and a snap.

In one embodiment, the centrifuge further includes a fixing plate 60, one end of the limiting rod 30 passes through the limiting hole 210 and is adapted to be connected to the fixing plate 60, and the other end of the limiting rod 30 is connected to the second connecting block 22 to fix the limiting rod 30.

With this alternative embodiment, one end of the limiting rod 30 passes through the limiting hole 210 to be connected with the fixing plate 60, the other end of the limiting rod 30 is connected with the second connecting block 22, and the second connecting block 22 is connected with the mounting plate 50, so that the limiting rod 30 can be fixed, and the limiting rod 30 can keep the relative rest of the limiting rod 30 and the fixing plate 60 and the mounting plate 50 of the centrifuge during the operation or transportation of the centrifuge.

In another embodiment, as shown in fig. 4, the centrifuge further includes a fixing plate 60, one end of the limiting rod 30 passes through the limiting hole 210 and is adapted to be connected to the fixing plate 60, and the other end of the limiting rod 30 passes through the second connecting block 22 and is adapted to be connected to the mounting plate 50 to fix the limiting rod 30.

With this alternative embodiment, one end of the limiting rod 30 passes through the limiting hole 210 to connect with the fixing plate 60, and the other end of the limiting rod 30 passes through the second connecting block 22 to connect with the mounting plate 50, so that the limiting rod 30 can be fixed, and the limiting rod 30 can keep the fixing plate 60 and the mounting plate 50 of the centrifuge stationary relative to each other during the operation or transportation of the centrifuge.

In the process of operation or transportation of the centrifuge, the to-be-damped piece 40 vibrates and shakes, vibration force and shaking force are transmitted to the first connecting block 21 through the installation part 401, and the first connecting block 21 is transmitted to the elastic piece 10 to limit the vibration and shaking of the to-be-damped piece 40. Through the limiting hole 210 of the first connecting block 21, the elastic member 10 drives the first connecting block 21 and the mounting portion 401 to move along the length direction of the limiting hole 210, so as to absorb the shock of the to-be-absorbed member 40. The inner side wall of the limiting hole 210 is abutted against the outer side wall of the limiting rod 30, so that the first connecting block 21 is limited to radially shake along the limiting rod 30, and the damping part 40 is limited to shake. Therefore, the maximum offset position of the member to be damped 40 can be well limited in the operation and transportation process of the centrifuge, so that the danger or the damage to the centrifuge can be avoided.

In some alternative embodiments, the connecting block 20 is at least partially of an elastomeric material.

With this alternative embodiment, the connecting block 20 is made of an elastic material to absorb part of the vibration and shaking forces, thereby reducing the stress on the elastic member 10. Meanwhile, compared with a rigid material, the connecting block 20 made of an elastic material can reduce impact and abrasion between the connecting block 20 and other parts, and the service life of the damping device for the centrifuge is prolonged.

As shown in FIG. 1, in some alternative embodiments, the inner sidewall of the position-limiting hole 210 is provided with a groove 2101 to reduce the rigidity of the inner sidewall of the position-limiting hole 210.

With this alternative embodiment, when the member to be damped 40 has a tendency to shake, the shaking force is transmitted to the inner side wall of the stopper hole 210 and the stopper rod 30 through the first connecting block 21. The rigidity of the inner side wall of the limiting hole 210 is reduced, the inner side wall of the limiting hole 210 deforms, the shaking force of the to-be-damped part 40 can be absorbed, the limiting hole 210 and/or the limiting rod 30 are/is cushioned, and the limiting hole 210 and/or the limiting rod 30 are/is prevented from being damaged.

Optionally, the first connecting block 21 is made of an elastic material, and a groove 2101 is disposed on an inner sidewall of the limiting hole 210. When the member 40 to be damped has a shaking tendency, the inner side wall of the limiting hole 210 is deformed to absorb shaking force of the member 40 to be damped.

By adopting the optional embodiment, when the member to be damped 40 has a shaking tendency, the inner side wall of the limiting hole 210 abuts against the outer side wall of the limiting rod 30, the first connecting block 21 is made of an elastic material, and the member to be damped 40 drives the inner side wall of the limiting hole 210 to deform so as to absorb shaking force and prevent the limiting hole 210 and/or the limiting rod 30 from being damaged. The inner side wall of the limiting hole 210 is provided with a groove 2101, so that a space can be provided for deformation of the inner side wall of the limiting hole 210, the limiting hole 210 and/or the limiting rod 30 can be better protected, and the service life of the damping device for the centrifugal machine is prolonged.

Optionally, the number of the grooves 2101 is multiple, and the grooves 2101 are arranged at intervals along the circumference of the limiting hole 210.

The centrifuge provided by the embodiment of the disclosure comprises the damping device for the centrifuge in any one of the above embodiments.

The centrifuge provided by the embodiment of the present disclosure includes the shock absorption device for a centrifuge in any one of the above embodiments, so that the centrifuge has all the beneficial effects of the shock absorption device for a centrifuge in any one of the above embodiments, and details are not repeated herein.

Optionally, the member to be damped 40 includes a motor 402 and a mounting portion 401, the mounting portion 401 includes a motor mounting plate 50, the motor 402 is connected with the motor mounting plate 50, and the motor mounting plate 50 is connected with the first connecting block 21 of the damping device for the centrifuge, so as to damp the motor 402 and limit the radial shaking of the motor 402 relative to the limiting rod 30 along the limiting rod 30.

In some alternative embodiments, the centrifuge further comprises a mounting plate 50, the mounting plate 50 being provided with a second connection 501. The second connecting portion 501 is engaged with the second connection engagement portion 221 of the shock-absorbing device for the centrifuge to connect the mounting plate 50 with the second connection block 22.

With this alternative embodiment, the mounting plate 50 is connected to the second connection block 22 through the second connection portion 501 and the second connection fitting portion 221, and the second connection block 22 is provided at the other end of the elastic member 10, so that the other end of the elastic member 10 is provided to the mounting plate 50 to damp the damping member 40.

In some alternative embodiments, the centrifuge further comprises a fixation plate 60. One end of the stopper rod 30 of the shock-absorbing device for the centrifuge is connected to the fixing plate 60 through the stopper hole 210 to fix the stopper rod 30.

With this alternative embodiment, the fixing plate 60 is coupled to one end of the stopper rod 30, thereby fixing the stopper rod 30 to absorb the shock to the member to be absorbed 40.

As shown in fig. 2 and 3, optionally, the number of the shock absorbing devices for the centrifuge is multiple, and the multiple shock absorbing devices for the centrifuge are connected with the member to be damped 40 and are arranged at intervals along the circumferential direction of the member to be damped 40.

With this alternative embodiment, a plurality of shock absorbing devices for the centrifuge are connected to the member to be damped 40, and are arranged at intervals in the circumferential direction of the member to be damped 40. The plurality of shock-absorbing devices for the centrifuge can bear the vibration force and shaking force of the to-be-damped piece 40, and improve the shock-absorbing effect of the to-be-damped piece 40.

Optionally, the number of the damping devices for the centrifuge is three, a line is drawn from the center of the member to be damped 40 to the damping device for the centrifuge, and an included angle between two adjacent damping devices for the centrifuge is 90 degrees to 180 degrees.

The included angle between two adjacent damping devices for the centrifugal machine is 90 degrees to 180 degrees, the three damping devices for the centrifugal machine are sequentially connected, the connection lines form a triangle, and the damping piece 40 is located in the triangle. Adopt this optional embodiment, when guaranteeing to have better shock attenuation effect, reduce the quantity that is used for centrifuge's damping device, reduction in production cost.

Optionally, a line is drawn from the center of the member to be damped 40 to the damping device for the centrifuge, and an included angle between two adjacent damping devices for the centrifuge is 120 degrees.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A damping device for a centrifuge, the centrifuge comprising a member to be damped (40), characterized in that the damping device for a centrifuge comprises:

an elastic member (10);

the connecting block (20) comprises a first connecting block (21), the first connecting block (21) is arranged at one end of the elastic part (10) and is suitable for being connected with the part to be damped (40) so as to damp the part to be damped (40) through the elastic part (10), and the first connecting block (21) is provided with a limiting hole (210);

the limiting rod (30) extends along the deformation direction of the elastic piece (10), one end of the limiting rod penetrates through the limiting hole (210) and can move along the extending direction of the limiting hole (210), and along the circumferential direction of the limiting rod (30), the outer side wall of the limiting rod (30) is abutted to at least part of the inner side wall of the limiting hole (210) and used for limiting the first connecting block (21) to radially shake along the limiting rod (30) relative to the limiting rod (30).

2. The shock absorbing device for a centrifuge according to claim 1, wherein the member to be damped (40) includes a mounting portion (401), and the first connection block (21) includes:

the elastic piece (10) and the mounting part (401) are respectively arranged on two opposite sides of the first sub-connecting block (211), and the first sub-connecting block (211) is provided with a first connecting part (2110);

and a second sub-connection block (212) provided with a first connection fitting portion (2121) fitted with the first connection portion (2110) to connect the second sub-connection block (212) and the first sub-connection block (211) so as to press the mounting portion (401) between the first sub-connection block (211) and the second sub-connection block (212).

3. The shock absorbing device for a centrifuge according to claim 1, wherein the connection block (20) further comprises:

a second connection block (22), the elastic member (10) being supported between the second connection block (22) and the first connection block (21) to fix the elastic member (10).

4. The vibration damping device for a centrifuge according to claim 3,

the centrifuge further comprises a mounting plate (50), the mounting plate (50) is provided with a second connecting portion (501), the second connecting block (22) is provided with a second connecting matching portion (221) suitable for being matched with the second connecting portion (501), so that the second connecting block (22) is connected with the mounting plate (50).

5. The vibration damping device for a centrifuge according to claim 4,

the centrifuge further comprises a fixing plate (60), one end of the limiting rod (30) penetrates through the limiting hole (210) and then is suitable for being connected with the fixing plate (60), and the other end of the limiting rod (30) is connected with the second connecting block (22) or penetrates through the second connecting block (22) and is suitable for being connected with the mounting plate (50) so as to fix the limiting rod (30).

6. The vibration damping device for a centrifuge according to claim 1,

the connecting block (20) is at least partially made of elastic materials.

7. The vibration damper for a centrifuge according to any one of claims 1 to 6,

the inner side wall of the limiting hole (210) is provided with a groove (2101) so as to reduce the rigidity of the inner side wall of the limiting hole (210).

8. A centrifuge, comprising:

a motor (402), wherein the member (40) to be damped comprises the motor (402);

the vibration damping device for a centrifuge according to any one of claims 1 to 7, wherein the first connecting block (21) is connected with the member to be damped (40), and the vibration damping device for a centrifuge is used for damping the member to be damped (40) and limiting radial shaking of the member to be damped (40) along the stopper rod (30).

9. The centrifuge of claim 8, further comprising:

the mounting plate (50) is provided with a second connecting part (501), and the second connecting part (501) is matched with the second connecting matching part (221) so that the mounting plate (50) is connected with the second connecting block (22).

10. The centrifuge of claim 8 or 9, further comprising:

and one end of the limiting rod (30) penetrates through the limiting hole (210) to be connected with the fixing plate (60) and is used for fixing the limiting rod (30).

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