A kind of High-speed centrifugal extraction machine vibration damping and vibration isolation system
Technical field:
The present invention relates to a kind of High-speed centrifugal extraction machine vibration damping and vibration isolation system.
Background technology:
The operation referred to as liquid/liquid extraction of wherein certain component is extracted from liquid mixture with solvent.
Centrifugal extractor is a kind of fast and efficiently liquid/liquid extraction (solvent extraction) equipment, and it is realized using centrifugal force
The extraction and separation of liquid-liquid diphase.The rotating speed of centrifugal extractor is its important technical parameter, determines the big of its separation factor
It is small, so as to determine the quality of extract and separate effect.From technology development and practical application, centrifugal extractor is towards rotating speed side high
To development.But the vibration problem of High-speed centrifugal extraction machine constrains its development and application.The reason for producing vibration has:1. material enters
Enter the impact of centrifugal extractor;2. solid or colloid may be contained in material, it is also possible to precipitate is produced in extraction process
Deng, cause solid attachment drum inner wall in centrifugal extractor, produce unbalance dynamic;3. centrifugal extractor is in rising or falling speed process
In, caused resonance close with centrifugal extractor intrinsic frequency;4. centrifugal extractor rotary part is in processing, assembling process
Cumulative errors etc..Vibration can bring problems with:1. influence the safety of centrifugal extractor and use;2. centrifugal extractor is influenceed
Separation, effect of extracting;3. Long-term Vibration, can produce fatigue rupture;4. the basis of centrifugal extractor is influenceed, especially centrifugation extraction
When the machine of taking is placed on steelframe platform.
The content of the invention:
To overcome the defect of prior art, the present invention installs vibration damping and vibration isolation system additional on centrifugal extractor, by taking product
Pole eliminate revolving part unbalance dynamic, eliminate thin-wall part shell body flutter and by hands such as isolating techniques between equipment and basis
Section, greatly reduces the vibration of centrifugal extractor.
The present invention solves technical problem and adopts the following technical scheme that:
A kind of High-speed centrifugal extraction machine vibration damping and vibration isolation system:
The centrifugal extractor includes the shell body of drive disk assembly, frame, rotary part and rotary part, the biography
Dynamic component provides rotary power for the rotary part, and drive disk assembly is located at the top of frame;
The rotary part is suspended in the machine frame inside, and flexible absorbing body is set at the top of the frame, described
The top of rotary part is supported in the frame by the elastic absorbing body;
The outer wall of the shell body of the rotary part is along the circumferential direction evenly equipped with multiple disc type vibration isolators, is arranged at the machine
The disc type vibration isolator is fitted in telescoping mechanism on frame leg post the outer wall of shell body.
The elastic absorbing body is made up of absorbing disk and spacing ring, and absorbing disk provides support for rotary part, described spacing
The periphery that ring is arranged at the absorbing disk limits its deflection, and spacing ring is not contacted with rotary part.
The telescoping mechanism includes the locking nut being located on frame leg post and the regulation matched with the locking nut
Bolt, the regulating bolt is connected with the disc type vibration isolator and disc type vibration isolator is fitted in the outer wall of shell body.
Damped elasticity vibration isolator is also uniformly installed in the bottom of the frame;
The damped elasticity vibration isolator includes:The upper shell and lower house of cup-shaped, the upper shell and lower house oral area phase
Internal diameter to mutually socket, and upper shell is more than the external diameter of lower house;
Spring and damping fluid are provided with the cavity that upper shell and lower house are surrounded.
The shell bottom forward surface of the upper shell and lower house is provided with spring base and the compression travel to spring and carries out
The lead column of guiding.
Radiation fins is also associated with the oral area of the upper shell, the radiation fins is surrounded on the periphery of lower house and extends to
The bottom of lower house, with prevent dust, debris from being surrounded into upper shell and lower house cavity in.
Compared with the prior art, beneficial effects of the present invention are embodied in:
The present invention installs vibration damping and vibration isolation system additional on centrifugal extractor, by take actively eliminate revolving part unbalance dynamic,
Eliminate the flutter of thin-wall part shell body and by means such as isolating techniques between equipment and basis, greatly reduce Centrifugical extraction
The vibration of machine so that centrifugal extractor can keep in mind the technical parameter direction high such as rotating speed high, big L/D ratio, major diameter, big flow
Development, also makes the extraction efficiency of centrifugal extractor, separating effect effectively improve.By the use of the vibration damping and vibration isolation system,
Centrifugal extractor roller diameter can be made to bring up to 1000mm, draw ratio is 2~2.3, device structure can for upper lower support structure or
Single supporting cantilever structure, equipment material can be base steel lining plastic or pure plastics, and structural shape, the skill of centrifugal extractor have been widened significantly
Art parameter and range of application.
The multistage vibrating isolation system that sets from top to bottom of the present invention, mutual associated working, first, solve material impact, solid
The vibration that generation and rotary part process and assemble precision etc. are caused;Secondth, lifting speed resonance, shell body thin-wall part is solved to quiver
Shake;3rd, centrifugal extractor and installation foundation (such as steelframe platform, high building floor) are effectively carried out into isolating technique.
Brief description of the drawings:
Fig. 1 is structural representation of the invention;Fig. 2 is top view of the invention;Fig. 3 is the structure of damped elasticity vibration isolator
Schematic diagram.
Label in figure:1 drive disk assembly, 2 frames, 3 rotary parts, 4 shell bodies, 5 elastic absorbing bodies, 51 absorbing disks, 52 limits
Position ring, 6 disc type vibration isolators, 61 flexible members, 62 regulating bolts, 7 damped elasticity vibration isolators, 71 lead columns, 72 spring bases, 73 bullets
Spring, 74 damping fluids, 75 lower houses, 76 upper shells, 77 upper shells, 8 material inlets, 9 liquid-phase outlets, 10 inflation inlets, 11 balance ports.
Below by way of specific embodiment, and the invention will be further described with reference to accompanying drawing.
Specific embodiment:
Embodiment:Referring to accompanying drawing, the High-speed centrifugal extraction machine vibration damping and vibration isolation system of the present embodiment:
Its shell body 4 for including drive disk assembly 1, frame 2, rotary part 3 and rotary part, drive disk assembly 1 is rotation
Part 3 provides rotary power, and drive disk assembly 1 is typically made up of located at the top of frame motor, shaft coupling etc., and motor provides rotation
Rotatory force, shaft coupling couples together motor and rotary part 3.
Shown in Fig. 1, rotary part 3 is suspended in inside frame 2, and flexible absorbing body 5, rotation are set at the top of frame 2
The top of part 3 is supported in frame 2 by the elastic absorbing body 5;
In processing, frame 2 supports drive disk assembly 1, rotary part 3 and shell body (4) of centrifugal extractor etc., is whole
The support member of weight of equipment, it is desirable to have enough rigidity.
Rotary part 3 is typically made up of rotary drum, weight weir plate, mixing paddle etc., is the main separated region of feed liquid.
Rotary part 3 has requirement for dynamic balance, and general precision prescribed is 6.3 grades or more.The processing of rotary part 3, assembly precision are direct
Influence equipment performance.
Shell body 4 is typically made up of upper and lower casing, annular seal space etc., is the preliminary space that feed liquid enters the portion that sets, shell
The annular space constituted between body 4 and rotary part 3 can form regions of turbulent flow, be the mixing mass transfer area of feed liquid.Conventionally, outer
Housing is provided with material inlet 8, liquid-phase outlet 9 and inflation inlet 10, balance port 11 etc..
To solve the vibration that material impact, solid generation and the process and assemble precision of rotary part 3 etc. are caused, whole rotation
Part 3 is arranged in frame 2 by the elastic mount supports of absorbing body 5, then by elastic absorbing body 5.So rotary part 3 and frame
Elasticity assembling is formed between 2.Therefore, the vibration that rotary part 3 is produced is absorbed by elastic absorbing body 5 completely, is not transferred to machine
On frame 2.
Elastic absorbing body 5 is mainly made up of absorbing disk 51 with spacing ring 52.Absorbing disk 51 it is general by vibration absorbing performance preferably, bullet
The big nonmetal parts support of property coefficient, and effectively endurance can damage.Also can be made up of metal elastic gonosome such as leaf spring, spring etc.;
Spacing ring 52 is placed on the periphery of absorbing disk 51, is not contacted with rotary part 3.When absorbing 51 compressive deformation of disk, spacing ring 52 can
Its deflection is effectively limited, in case deflection is excessive to produce destruction.
To solve lifting speed resonance, the flutter of the thin-wall part of shell body 4, along the circumferential direction it is evenly equipped with the outer wall of shell body 4
Multiple disc type vibration isolators 6, general size, the weight according to roller diameter of disc type vibration isolator 6 is circumferential uniform 4~8;Disc type every
The device 6 that shakes is arranged on the outer surface weakness of shell body 4.
The flexible member 61 of disc type vibration isolator 6 is fitted in the outer surface of shell body 4, and the fit-state is complete by telescoping mechanism
Into the telescoping mechanism includes the locking nut being located on frame leg post and the regulating bolt 62 matched with locking nut, passes through
The one end of adjusting screw rod 62 holds out against the outer wall that flexible member 61 can be fitted in shell body.Between disc type vibration isolator 6 and shell body 4
Tightness, is adjusted by adjusting screw rod 62.
Flexible member 61 it is general by vibration absorbing performance it is preferable, coefficient of elasticity is big, can effective endurance damage nonmetal parts system
Make.
For centrifugal extractor and installation foundation (such as steelframe platform, high building floor) effectively are carried out into isolating technique, from
The bottom of heart extracter frame 2 is uniformly provided with damped elasticity vibration isolator 7.
Damped elasticity vibration isolator 7 includes:The upper shell 77 and lower house 75 of cup-shaped, upper shell phase relative with lower house oral area
External diameter of the internal diameter of mutually socket, and upper shell more than lower house;
Spring 73 and damping fluid 74 are provided with the cavity that upper shell and lower house are surrounded.
The shell bottom forward surface of upper shell and lower house is provided with spring base 72, and compression spring is arranged in spring base 72,
To keep compression spring position;The shell bottom forward surface of upper shell and lower house is additionally provided with lead column 71, prevents compression spring from existing
There is unstable phenomenon in compression process.
The general viscosity of damping fluid 74 is very big, and resistant to shearing can effectively absorb vibration.Centrifugal extractor in the process of running, respectively
The vibration that the factor of kind is produced finally is eliminated or absorbed by compression spring 73, damping fluid 74, vibration is not delivered on installation foundation.
During specific setting, radiation fins 76 is also associated with the oral area of upper shell 77, the radiation fins is surrounded on the outer of lower house
Week simultaneously extends to the bottom of lower house, with prevent dust, debris from being surrounded into upper shell and lower house cavity in.
Damped elasticity vibration isolator 7 can not be put upside down, to prevent damping fluid 74 from revealing.Therefore should be set outside damped elasticity vibration isolator 7
There is obvious placement to identify.The size of compression spring 73 is chosen according to the difference of load capacity.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.