CN212080004U - Flat plate type centrifuge - Google Patents
Flat plate type centrifuge Download PDFInfo
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- CN212080004U CN212080004U CN202020547239.1U CN202020547239U CN212080004U CN 212080004 U CN212080004 U CN 212080004U CN 202020547239 U CN202020547239 U CN 202020547239U CN 212080004 U CN212080004 U CN 212080004U
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- flat plate
- elastic piece
- centrifuge
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Abstract
The utility model relates to the technical field of centrifuges, in particular to a flat plate type centrifuge, which comprises a flat plate, a shell cover and a centrifuge bucket; the vibration reduction mechanism is positioned below the flat plate; the vibration damping mechanism comprises a top plate, a middle plate, a base, a first elastic piece and a second elastic piece; the top surface of the top plate is fixedly connected with the bottom surface of the flat plate, the upper end of the first elastic piece is fixedly connected with the bottom surface of the top plate, and the lower end of the first elastic piece is fixedly connected with the top surface of the middle plate; the bottom surface of the middle plate is integrally formed with a convex column; the base comprises a base plate and a protruding platform which are integrally formed, the protruding platform is positioned above the base plate, and an embedded groove is formed in the top of the protruding platform; the protruding column is in clearance fit with the embedded groove; the upper end of the second elastic piece is fixedly connected with the bottom surface of the middle plate, and the lower end of the second elastic piece is fixedly connected with the top surface of the bottom plate; the elastic coefficient of the first elastic member is larger than that of the second elastic member. Adopt the technical scheme of the utility model can realize plate centrifuge's multistage damping.
Description
Technical Field
The utility model relates to a centrifuge technical field, in particular to flat centrifuge.
Background
Plate centrifuges are machines that utilize centrifugal force to separate components of a mixture of liquid and solid particles or liquid and liquid. The centrifugal machine is mainly used for separating solid particles from liquid in suspension, or separating two liquids which have different densities and are insoluble with each other in emulsion; it can be used to discharge liquid from wet-solids, and special overspeed tube separators can also be used to separate gas mixtures of different densities.
The core component of the flat centrifuge for solid-liquid separation is a centrifuge bucket, and can be divided into filtration type centrifugation and sedimentation type centrifugation according to the working principle of the centrifuge bucket. The main principle of the filtration centrifugation is to accelerate the liquid phase in the solid-liquid mixture to be thrown out of the drum by the centrifugal force (matching with a proper filter material) generated by the centrifugal drum running at a high speed, and to leave the solid phase in the drum, so as to achieve the effect of separating the solid from the liquid, or the effect commonly called dehydration. The main principle of the sedimentation type centrifugation is that the sedimentation speed of components (solid phase or liquid phase) with different specific gravities in the mixed solution is accelerated by the strong centrifugal force generated by the high-speed rotation of the rotor, and the substances with different sedimentation coefficients and buoyancy densities in the sample are separated.
No matter which centrifugal mode is adopted, the centrifugal machine is based on high-speed rotation, and then larger vibration is often generated in the working process of the centrifugal barrel. The vibration reduction of the flat centrifuge mainly comprises active vibration reduction and passive vibration reduction, wherein the active vibration reduction is to improve the processing precision of components and mechanisms which can generate vibration when the centrifuge runs, and reduce unbalance amount so as to reduce a vibration source; passive vibration reduction is the low frequency, high frequency vibrations that reduce the unbalance that causes because of subassembly assembly error and loading error and produce when centrifuge operates to make whole operation process more steady.
The traditional vibration damper of the flat plate centrifuge is a rubber block vibration damper or a damping vibration damper, and usually only one or one-stage vibration damper is adopted, so that electrical elements in a distribution box are easily damaged under strong vibration, the failure rate of the centrifuge is increased, the maintenance cost is further increased, and great vibration and noise can be generated in the low-speed stage of the acceleration and deceleration process.
For this reason, a centrifuge capable of multi-stage vibration reduction is required.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flat centrifuge can realize multistage damping.
In order to solve the technical problem, the present application provides the following technical solutions:
a flat plate type centrifuge comprises a flat plate, a shell cover and a centrifuge bucket; the shell is fixed on the flat plate; the shell cover is arranged at the top of the shell, and the centrifugal barrel is arranged in the shell; the vibration reduction mechanism is positioned below the flat plate;
the vibration damping mechanism comprises a top plate, a middle plate, a base, a first elastic piece and a second elastic piece; the top surface of the top plate is fixedly connected with the bottom surface of the flat plate, the upper end of the first elastic piece is fixedly connected with the bottom surface of the top plate, and the lower end of the first elastic piece is fixedly connected with the top surface of the middle plate; the bottom surface of the middle plate is integrally formed with a convex column; the base comprises a base plate and a protruding platform which are integrally formed, the protruding platform is positioned above the base plate, and an embedded groove is formed in the top of the protruding platform; the height of the embedded groove is greater than that of the protruding column; the protruding column is in clearance fit with the embedded groove; the upper end of the second elastic piece is fixedly connected with the bottom surface of the middle plate, and the lower end of the second elastic piece is fixedly connected with the top surface of the bottom plate; the elastic coefficient of the first elastic member is larger than that of the second elastic member.
Has the advantages that: the existing centrifugal machine usually only adopts a single vibration damping device for vibration damping, and the elastic coefficient of the single vibration damping device is fixed, so that the arrangement is difficult to deal with different amplitudes. If the elastic coefficient of the damping device is large, the damping effect on small amplitude is poor; if the coefficient of elasticity of the vibration damping device is small, vibration damping effect for large amplitude is poor. In this scheme, carry out the damping through first elastic component collocation second elastic component, the elastic coefficient of first elastic component is greater than the elastic coefficient of second elastic component moreover, can carry out the damping to big amplitude through first elastic component, carries out the damping to little amplitude through the second elastic component.
Because the elastic coefficient of second elastic component is low, the too big condition of range of rocking about centrifuge appears easily, in this scheme, through protrusion post and embedded groove clearance fit, has reached the limiting displacement of left right direction, makes the second elastic component can only follow the up-and-down direction motion, can effectively avoid controlling the condition of rocking.
To sum up, this scheme is through setting up first elastic component, second elastic component, protrusion post and embedded groove, can reduce whole centrifuge's amplitude, has realized multistage damping, plays good damping effect, and damping mechanism's simple structure moreover, low in manufacturing cost, the fault rate is low, maintains simply.
Further, the cross sections of the protruding columns and the embedded grooves are circular. Compare with the cross section of protrusion post and embedded groove and be the rectangle, need not align each angle when protrusion post inserts the embedded groove, simple to operate.
Further, the first elastic piece and the second elastic piece are both springs. The spring is low in cost and convenient to obtain.
Further, the diameter of the first elastic member is not smaller than the diameter of the protruding column. The stability that enables first elastic component is better, can avoid rocking about, and is also better to dull and stereotyped support effect.
Further, the first elastic piece and the protruding column are coaxial. The coaxial arrangement facilitates the transmission of forces in the vertical direction.
Furthermore, the number of the second elastic pieces is 4-6, and the second elastic pieces are uniformly distributed along the circumferential direction of the protruding table. Through at protruding platform circumference evenly distributed second elastic component, can strengthen the damping effect.
Further, a first rubber layer is fixed at the bottom of the embedding groove. The first rubber layer can avoid the direct striking embedded groove bottom of protrusion post, can play the buffering and fall the effect of making an uproar.
Further, a second rubber layer is fixed on the bottom surface of the bottom plate. The second rubber layer can increase the bottom plate and place the frictional force on centrifuge ground, avoids centrifuge to remove.
Further, the number of the vibration damping mechanisms is 4. Through setting up too much damping mechanism, the damping effect is better.
Drawings
FIG. 1 is a front view of a first embodiment of a flat plate centrifuge;
FIG. 2 is a front view of a vibration reduction mechanism of an embodiment of a flat plate centrifuge;
FIG. 3 is a longitudinal sectional view of a vibration reduction mechanism of an embodiment of a flat plate centrifuge.
Detailed Description
The following is further detailed by way of specific embodiments:
the reference numbers in the drawings of the specification include: the centrifugal vibration-damping device comprises a flat plate 1, a shell 2, a shell cover 3, a centrifugal barrel 4, a vibration-damping mechanism 5, a top plate 6, a middle plate 7, a protruding column 8, a bottom plate 9, a protruding table 10, a first elastic piece 11, a second elastic piece 12, a first rubber layer 13 and a second rubber layer 14.
Example one
As shown in fig. 1, the flat plate centrifuge of the present embodiment includes a flat plate 1, a casing 2, a casing cover 3, and a centrifuge tub 4. The flat plate 1 is rectangular; the shell 2 is fixed on the flat plate 1; the shell cover 3 is arranged on the top of the shell 2, and in the embodiment, the shell cover 3 is detachably connected with the top of the shell 2. The centrifugal barrel 4 is arranged in the shell 2; the device also comprises a group of vibration reduction mechanisms 5 positioned below the flat plate 1; in this embodiment, the number of the vibration reduction mechanisms 5 is 4, and the vibration reduction mechanisms are respectively located at four corners of the flat plate 1.
As shown in fig. 2, the damping mechanism 5 includes a top plate 6, a middle plate 7, a base, a first elastic member 11, and a second elastic member 12; in this embodiment, the first elastic member 11 and the second elastic member 12 are both springs.
The top surface of the top plate 6 is fixedly connected with the bottom surface of the flat plate 1 through bolts; the upper end of the first elastic member 11 is welded to the bottom surface of the top plate 6, and the lower end of the first elastic member 11 is welded to the top surface of the middle plate 7. In this embodiment, the diameter of the first elastic member 11 is not smaller than the diameter of the projecting column 8. The first elastic member 11 is coaxial with the projecting post 8.
As shown in fig. 3, a protruding column 8 is integrally formed on the bottom surface of the middle plate 7; the base comprises a base plate 9 and a protruding platform 10 which are integrally formed, the protruding platform 10 is positioned above the base plate 9, and an embedded groove is longitudinally formed in the top of the protruding platform 10; the height of the embedded groove is greater than that of the protruding column 8; the first rubber layer 13 is adhered to the bottom of the embedding groove. The protruding column 8 is in clearance fit with the embedded groove; in this embodiment, the cross sections of the projecting column 8 and the fitting groove are both circular.
The number of the second elastic members 12 is 4 to 6, 4 in this embodiment. The second elastic members 12 are uniformly distributed along the circumferential direction of the protruding table 10. The upper end of the second elastic piece 12 is welded with the bottom surface of the middle plate 7, and the lower end of the second elastic piece 12 is welded with the top surface of the bottom plate 9;
the elastic coefficient of the first elastic member 11 is larger than that of the second elastic member 12. The bottom surface of the bottom plate 9 is adhered with a second rubber layer 14.
Example two
The difference between this embodiment and the first embodiment is that the number of the second elastic members 12 in this embodiment is 6.
The above are only embodiments of the present invention, and the present invention is not limited to the field related to this embodiment, and the common general knowledge of the known specific structures and characteristics in the scheme is not described too much, and those skilled in the art know the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the scheme, and some typical known structures or known methods should not become the obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. A flat plate type centrifuge comprises a flat plate, a shell cover and a centrifuge bucket; the shell is fixed on the flat plate; the shell cover is arranged at the top of the shell, and the centrifugal barrel is arranged in the shell; the device is characterized by also comprising a group of vibration reduction mechanisms positioned below the flat plate;
the vibration damping mechanism comprises a top plate, a middle plate, a base, a first elastic piece and a second elastic piece; the top surface of the top plate is fixedly connected with the bottom surface of the flat plate, the upper end of the first elastic piece is fixedly connected with the bottom surface of the top plate, and the lower end of the first elastic piece is fixedly connected with the top surface of the middle plate; the bottom surface of the middle plate is integrally formed with a convex column; the base comprises a base plate and a protruding platform which are integrally formed, the protruding platform is positioned above the base plate, and an embedded groove is formed in the top of the protruding platform; the height of the embedded groove is greater than that of the protruding column; the protruding column is in clearance fit with the embedded groove; the upper end of the second elastic piece is fixedly connected with the bottom surface of the middle plate, and the lower end of the second elastic piece is fixedly connected with the top surface of the bottom plate; the elastic coefficient of the first elastic member is larger than that of the second elastic member.
2. The flat plate centrifuge of claim 1 wherein: the cross sections of the protruding columns and the embedded grooves are circular.
3. The flat plate centrifuge of claim 2 wherein: the first elastic piece and the second elastic piece are both springs.
4. A flat plate centrifuge according to claim 3 wherein: the diameter of the first elastic piece is not smaller than that of the protruding column.
5. The flat plate centrifuge of claim 4 wherein: the first elastic piece and the protruding column are coaxial.
6. The flat plate centrifuge of claim 5 wherein: the number of the second elastic pieces is 4-6, and the second elastic pieces are uniformly distributed along the circumferential direction of the protruding table.
7. The flat plate centrifuge of claim 6 wherein: and a first rubber layer is fixed at the bottom of the embedding groove.
8. The flat plate centrifuge of claim 7 wherein: and a second rubber layer is fixed on the bottom surface of the bottom plate.
9. The flat plate centrifuge of claim 1 wherein: the number of the vibration reduction mechanisms is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020547239.1U CN212080004U (en) | 2020-04-14 | 2020-04-14 | Flat plate type centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020547239.1U CN212080004U (en) | 2020-04-14 | 2020-04-14 | Flat plate type centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212080004U true CN212080004U (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020547239.1U Expired - Fee Related CN212080004U (en) | 2020-04-14 | 2020-04-14 | Flat plate type centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212080004U (en) |
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2020
- 2020-04-14 CN CN202020547239.1U patent/CN212080004U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201204 |