CN207446383U - Simultaneously the side-mounted double-mass vibrating of coil spring is not ground convexity - Google Patents
Simultaneously the side-mounted double-mass vibrating of coil spring is not ground convexity Download PDFInfo
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- CN207446383U CN207446383U CN201720793553.6U CN201720793553U CN207446383U CN 207446383 U CN207446383 U CN 207446383U CN 201720793553 U CN201720793553 U CN 201720793553U CN 207446383 U CN207446383 U CN 207446383U
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Abstract
The utility model is that simultaneously the side-mounted double-mass vibrating of coil spring is not ground convexity, including main vibrating system and vibrating isolation system, main vibrating system is included through the vibrating motor for being used as exciting source of Frequency Converter Control, at least one mill tube being connected with vibrating motor and weight body with mill tube flanged joint, vibrating motor, mill tube and the upper plastid of upper plastid frame composition, one end of lower plastid is connected with main vibration spring group, and lower plastid is connected by the main vibration spring group with vibrating isolation system；Vibrating isolation system includes the isolation spring being connected with the lower plastid other end, and isolation spring is connected by pedestal with ground；Main vibration spring group is made of several middle convex not doubling-up helical springs, and each spring is formed by a steel wire coil around structure.The utility model has the characteristics that particle refinement, de-agglomerated, low energy consumption, mill efficiency is high, capacity usage ratio is high and effectively accumulation of energy, energy saving, steady running, to significantly reduce noise, vibration isolating effect good.
Description
Technical field
The utility model is related to a kind of milling equipments prepared for the vibration of material fining powder, are that one kind has middle convex
Simultaneously coil spring, medium are not the side-mounted double-mass vibrating mill of hybrid density proportioning, belong to vibration using the friendship with powder technology
Fork science and technology.
Background technology
Vibromill is the vibrating mechanical equipment that material fining grinding operation is completed using vibration principle, existing superfine powder
In technology of preparing, vibromill is with other preparation methods if any gas phase synthesis method, liquid phase synthesizing method, comminution by gas stream, roller mill method
Etc. comparing, there is the advantages such as mechanical mass activity is big, purification is convenient, at low cost, simple in structure, efficient, existing vibromill branch
It supports spring and generally uses line style equal pitch helical spring；Its medium is generally single using isodensity medium, such as abrasion-resistant stee, zirconium oxide
One density medium；Body is mostly elemental body structure；Exciting source generally using overhead, underneath type, middle and side-mounted, for
Large-scale, super-huge vibration mill, especially based on side-mounted.
The elemental body structure of vibromill shows between the vibration plastid and pedestal that are made of cylinder and vibrator, is to pass through
Spiral compression spring is connected, and the vibration that vibration plastid generates can be directly acted on ground by spring pedestal, be generated larger with making an uproar
Sound, therefore it is larger to consume energy.In recent years, or the research report that there is double-mass vibrating to grind, but due to double-mass vibrating mill be related to it is main every
Vibrating system designs, and structure is relative complex, cost is higher, therefore practical application person is few.
In Practical Project, the parameters such as vibrational system quality, exciting force, damping force are mostly variation persons, such as vibromill
The mill that medium, the grinding charge material of system in itself are formed, which is situated between, to flow, and constantly throws, falls during the motion, is actually one
Nonlinear change can also occur wherein for the process of the mass change of a complexity, damping, and the bias that the inclined block of vibrating motor is formed swashs
Power of shaking be with the variation of corner and change it is non-linear, vibration grinding system be actually a typical nonlinear system, be
One has the strong nonlinear vibration system for determining excitation and uncertain response.
The load character curve for the equal pitch helical spring that existing vibromill generally uses is linear line, to wait stiffness helixes
Spring does not account for the actual condition of mission nonlinear, such as jigging conveyer, vibrating scalper, vibrating mill, due to moving shape
The system load moment is all changing under state, therefore the stiffness helixes spring such as uses, though having the advantages that simple in structure, at low cost, so deposits
In the problems such as noise is big, energy consumption is high, efficiency is low, the repair frequency is high, equipment life is low.
Normal spiral spring is linear characteristic wire spring, and load is in a linear relationship with deforming；Variable-pitch screw spring is then
For nonlinear characteristic wire spring, load, in non-linear relation, has special performance, the load of all of which reaches with deformation
After to a certain degree, the stress in material section is changed along the length of material.Therefore, the size of material will be according to maximum
Stress determines；The height or length of spring will be determined according to deformation required after stand under load.
Normal linear spring can not realize variation rigidity, then can not realize and the vibration coupling of above-mentioned complex vibration system or association
Vibration is adjusted, thus efficiency is low, energy consumption is big, noise is big.How so that the variation of vibrational system rigidity and elastic force, with its in system
The active force that it varies goes to realize vibration coupling, is the worth the problem of inquired into reach energy-efficient purpose.
Recent domestic experts and scholars are inquiring into the solution of the above problem always, though there is non-linear variable-pitch screw
The application report of metal spring, but there are still noise is big, doubling-up when noise bigger the problem of, used in nonlinear vibration motivation,
Easily there is the problems such as short life, the repair frequency is high, of high cost.
In conclusion being not yet suggested so far with energy-efficient new grinding machine for the above problem is overcome simultaneously.
The content of the invention
The utility model provides a kind of middle convex, and simultaneously the side-mounted double-mass vibrating of coil spring, hybrid density medium is not ground, tool
There is vibrator i.e. vibrating motor to be located at the side located structure of mill tube left or right side and double mass technical characteristic, upper and lower plastid point
Not with it is main shake, isolation spring form it is main shake and vibrating isolation system, for middle convex, simultaneously coil spring, isolation spring can not be rubber to main vibration spring
Rubberized canvas complex spring, master-isolation spring are variation rigidity；To further improve mill Jie's ball rushing in relative motion in cylinder
The energy hit, squeeze, shear, collided implements hybrid density medium size composition optimal design-aside, with existing widely used common side
Formula vibrating mill system is compared, have the characteristics that it is apparent it is efficient, noise is small, it is intended to effectively solve existing vibromill always with
Come, the technical bottlenecks problems such as pendent noise is big, efficiency is low.
The novel side-mounted formula double-mass vibrating mill of the utility model takes following technology to realize：
The utility model is convexity not simultaneously coil spring side-mounted double-mass vibrating mill, including main vibrating system and vibrating isolation system,
Main vibrating system includes the vibrating motor for being used as exciting source by Frequency Converter Control, at least one and vibrating motor connects
The mill tube connect and the weight body with mill tube flanged joint, vibrating motor, mill tube and the upper plastid of upper plastid frame composition, lower plastid
One end is connected with main vibration spring group, and lower plastid is connected by the main vibration spring group with vibrating isolation system；
Vibrating isolation system includes the isolation spring being connected with the lower plastid other end, and isolation spring passes through pedestal and ground phase
Even；
Main vibration spring group is made of several middle convex not doubling-up helical springs, and each spring is by a steel wire coil around structure
It forming, steel wire is wound into convexity type helical structure, the effective helix angle more than middle circle of convex not doubling-up helical spring at least 4, and
The effective pitch of effective helix angle is the spiral of equal pitch, and spiral central diameter is generally distributed from centre to both ends in Rearrangments.
Further improvement of the utility model is：Middle convex not doubling-up helical spring edge and electric machine main shaft in vibromill
Vertical direction puts several rows, is placed several rows along with electric machine main shaft parallel direction, forms spring and is evenly distributed with state.
Further improvement of the utility model is：Isolation spring is isolation spring made of composite material.
Further improvement of the utility model is：Mill tube medium is two or more different proportioning.
Side vibration mill described in the utility model, the exciting of grinding machine come from the direct effect of side-mounted vibrator, with
And the weight body coupled with mill tube flange, clump weight compensate for the eccentric structure of mill driving so that the mass centre of sky mill is still
On axis in grinding cylinder, compared with the homogeneous circular vibration of conventional vibration mill, the utility model vibromill generates oval, circular
With a variety of vibrations such as linear, make the unit power consumption of vibromill reduce about 50%, nearly 1 times of output increased, by kinematics model pair
The movement of grinding cylinder has carried out quantitative analysis, and the efficiency of side vibration mill is confirmed by the experiment and detection of testing machine.
Side vibration grinds the mill capsule i.e. mill tube that at least one is supported on vibration component, vibrator component conduct
Oscillation drive is rigidly fixed on this container, and vibrator carries out exciting in unilateral side to mill capsule, i.e., in mill capsule
To its exciting outside gravity axis and center of gravity, wherein, in order to balance one balance mass of vibrator quality settings i.e. weight body,
The axle of spring of driving side is located between grinding machine and the gravity axis of vibrator component, drive vibrator component, so as to generate by
The uneven vibration that circular, ellipse and linear combination of vibrations form, makes the material particles with certain bandwidth, obtains mill and is situated between
The continually changing impact of group, collision, shearing etc., to improve mill grinding efficiency.The grinding machine of the utility model is mainly shaken by master
System is formed with vibrating isolation system；Vibrating motor can reach by Frequency Converter Control and become exciting force as exciting source in main vibrating system
Purpose, what is be fixed together with vibrating motor is mill tube, and the two forms upper plastid, lower plastid one end and master together with upper plastid frame
The spring that shakes is connected, and is connected by main vibration spring with vibrating isolation system；In vibrating isolation system, the other end is connected with isolation spring, vibration isolation bullet
Spring is connected by pedestal with ground, and after energization, by Frequency Converter Control vibrating motor, to change exciting force, vibrating motor is with mill
Cylinder makees approximate circle vibration so that the generation mutually movement that is situated between is ground in mill tube, in this way, cylinder is interior and is adhered on mill Jie and barrel
Powder due to hitting, rubbing to achieve the purpose that grinding, the double-mass vibrating mill passes through main vibration spring group and isolation spring
Two groups of springs can significantly reduce oscillation intensity and noise that vibromill main body generates ground, and reach energy saving effect
Fruit, isolation spring are installed between lower plastid and pedestal, and pedestal, by bolt group concrete mutually, can prevent vibrating mill with ground
Move horizontally.
The main vibration spring group of the utility model grinding machine is made of several middle convex not doubling-up helical springs, wherein each
Spring is formed by a steel wire coil around structure, and the steel wire is wound into middle convex helical structure, middle convex according to design data
The Parameters variations such as the design visible system quality of spring, exciting force are designed.Middle convex not doubling-up helical spring at least 4 encloses
Above effective helix angle, and the effective pitch of effective helix angle be equal pitch spiral, spiral central diameter from centre to both ends generally in
Rearrangments are distributed.
The load envnlope line of the middle convex not doubling-up helical spring is cumulative type non-linear line, and be it is continuous or point
Section is continuous, this is conducive to the generation for preventing its resonance and flutter；Due to the variation of central diameter, in identical steel wire diameter same pitch
In the case of, decrement during adjacent two steel wires doubling-up, middle convex spring is big compared with common spring, special according to the structure of this spring
Point considers the condition of not doubling-up, it can be achieved that the not doubling-up of grinder system main vibration spring, can return the noise that spring doubling-up generates
Zero.
Due to the central diameter variation of the helical structure of convex not doubling-up helical spring in composition, there is the utility model apparent
Non-linear and required variation rigidity feature, i.e., the utility model spring form system stiffness have increases and decreases with loads increasing or decreasing
Variation rigidity feature, make the effective accumulation of energy of system, energy saving, steady running, the purpose for significantly reducing noise to reach.
The middle convex not doubling-up helical spring group formula double-mass vibrating mill, middle convex not doubling-up helical spring is in vibromill
Middle edge put with electric machine main shaft vertical direction it is multiple rows of, along and electric machine main shaft parallel direction place several rows, form spring and be evenly distributed with state,
So that vibromill preferably works.
In the utility model, isolation spring can be used rubber duck composite material and be made, lower plastid by isolation spring and
Pedestal is connected with ground, and since isolation spring has hard nonlinear characteristic, rigidity has the characteristics that change with load change,
Therefore good damping result, preferable noise reduction can be obtained, the purpose of firm banking mainly prevents vibromill in the horizontal direction
Movement in face.
Vibromill is to utilize the vibration for vibrating mill tube generation certain frequency so that the media such as ball or stick in cylinder generate inertia
Power has compact-sized, volume with comminuting matter, the acceleration of mill tube vibration to complete to impact generally up to 6g-12g
Small, light-weight, properties of powder performace concentration, process simplification, it is easy to operate, easy to maintenance, liner plate Medium Replacement is easy the advantages that, can be wide
It is general to be used for the industries powder such as metallurgy, building materials, mine, fire resisting, chemical industry, glass, ceramics, graphite.
The medium that existing vibromill technology uses, size can pass through experiment or numerical simulation according to different material
It is compared, to determine optimum gradation, it is substantially single density medium that its right density, which is chosen, generally using forged steel, wear-resisting
Steel, wear resistant cast iron, high chrome, middle chromium steel, zirconium oxide etc., shape can be spherical or round bar shape, but mill tube to be further added by and
Acceleration during media impingement material, single density medium is almost helpless, and appropriate selection two or more not
With the medium size composition of density, such as wolfram steel, abrasion-resistant stee, in throwing, in collision process for grinding process, since its density of material differs
About 2 times, then cause that mill in cylinder is situated between involve, relative velocity and involve, the movement magnitude such as relative acceleration increases severely, necessarily cause it
Impact energy greatly improves, and becomes the necessary condition for improving mill efficiency.
It is a variety of to can reach generation impact, shearing, extruding etc. in grinding operation for the realization of hybrid density media technology main points
The Practical Project effect of the combining ability effect of power, for overcoming some work barrier of vibrating machine, it is special to solve vibrating machine
It is some key technologies of vibromill or restricts the bottleneck problem developed, does not refine, easily rolls into a ball as solved ultramicro powder in vibromill
Poly-, powder product is distributed the problems such as band is big compared with wide and energy consumption, mill efficiency is low, capacity usage ratio is low, and then realizes material
Ultra-fine or ultramicro grinding reduces energy consumption, improves efficiency, has significant engineering effort, economic and social benefit, due to high density
Medium, which uses, causes the financial cost that grinding machine exciting power is slightly promoted, right compared with the economic benefit that the utility model generates
It can be ignored substantially in the target for pursuing high-quality powder.
The beneficial effects of the utility model are：Vibrating mill described in the utility model and common other non-side-mounted grinding machine phases
Than that since the exciting of grinding machine comes from the direct effect of side-mounted vibrator, grinding machine can be made to generate by circular, ellipse and straight line
The uneven vibration that shape combination of vibrations forms has the material particles of certain bandwidth, can obtain the mill continually changing punching of group Jie
The effects that hitting, collide, shearing, to improve mill grinding efficiency；Compared with common elemental body grinding machine, due to main vibration isolation system
System, on the one hand can bear the exciting force of bigger, on the other hand can effectively reduce vibration effect of the vibrating mill to ground, reach good
Good energy-saving effect；The rigidity of the middle convex spring and rubber spring can become with the variation of grinder system maximum load
Change, can not only have the benefits of accumulation of energy, energy saving, and necessary condition is provided for the coupled vibrations of main vibration isolation, main vibration spring is can
Not doubling-up under energy maximum load so that system noise significantly reduces and dynamic stability greatly increases, and overall efficiency substantially carries
It rises；In the case of hybrid density medium size composition optimal design-aside, compared with existing grinder system, from Media density, this angle is examined
It is even more apparent to improve the advantages such as high, the reduction energy consumption of system effectiveness for core.
The effect of the utility model is positive, apparent and unique, and with particle refinement, de-agglomerated, low energy consumption, grinding
Efficient, capacity usage ratio is high and effective accumulation of energy, energy saving, steady running, significantly reduces the features such as noise, vibration isolating effect are good.
The above-mentioned technology of the utility model such as is effectively solving existing vibromill pendent energy consumption is big all the time, efficiency is low at the skills
In art bottleneck problem, a step of leap will be realized.
Description of the drawings
Fig. 1 is the utility model embodiment vibromill structure diagram.
Fig. 2 is convex not doubling-up helical spring structure schematic diagram in the utility model embodiment.
Fig. 3 is convex spring adjacent turn not doubling-up schematic diagram in the utility model embodiment.
Fig. 4 is convex not doubling-up helical spring component Butut in the utility model embodiment.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples
It is described in detail, which is only used for explaining the utility model, and the scope of protection of the utility model is not formed and is limited.
It is the utility model vibration milling machine structure schematic diagram shown in Fig. 1, grinding machine mainly has vibrating motor 1, mill tube 2, counterweight
Body 3, upper plastid frame 4, spring guide pillar 5, main vibration spring group 6, lower plastid 7, isolation spring 8, pedestal 9 are formed；It grinds and is situated between in cylinder
Packing factor is set to 65%, and it is abrasion-proof steel ball, wolfram steel ball that mill, which is situated between, and two kinds of mill betweenness amount ratios are 6:4, a diameter of 2 mm of mill Jie, 3.5
Mm, 5 mm, 6.5mm, material are superhard fine powder body, and grinding machine vibration frequency is 1450 rpm, surveys amplitude<22mm shakes strong<20.
As shown in Figure 1, the generated vibration on the vibrating motor on the right side of cylinder, directly drives plastid and mill tube,
Equipped with medium and powder in mill tube, vibration make the mills such as the steel ball in mill tube be situated between material is generated collision, impact, shearing, squeeze and
It rubs mill with the hands, achievees the purpose that crush material and fine grinding, pass through and adjust the angle of the inclined block of major-minor, change the grading that mill is situated between and select
It selects, implement the measures such as frequency control, required certain frequency high amplitude, the vibration crushing effect of Gao Zhenqiang can be generated.
Plastid is mainly made of upper plastid frame, vibrating motor, mill tube, weight body consolidation on the utility model grinding machine, in cylinder
Equipped with mill Jie and powder, it is connected between upper and lower plastid with main vibration spring, main vibration spring group upper and lower side is equipped with spring guide pillar, to protect
The stability that plastid is vibrated in vertical on barrier；It is lower to be connected between plastid and pedestal with isolation spring, pedestal and ground with
Bolt concrete mutually.Under working condition, exciting can be changed by changing transient state rotational frequency by Frequency Converter Control vibrating motor
Power, so change amplitude, shake strong change curve, achieve the purpose that efficient grinding.
The utility model selects the medium size composition of two kinds of different densities, i.e. wolfram steel, abrasion-resistant stee, the throwing of grinding process,
In collision process, since its density of material differs about 2 times, then cause that mill in cylinder is situated between involve, relative velocity and involve, it is opposite plus
Speed etc. moves magnitude and increases severely, and due to greatly improving for impact energy, then generates and improves mill efficiency, reduces crushing carefully
Degree, the multi-effect for reducing noise.
In Fig. 2, middle convex not doubling-up helical spring by a steel wire coil around forming, during the steel wire coil is coiled by design
Convex helical structure, the Parameters variations such as the design visible system quality of middle convex spring, exciting force are improved, and middle convex is not simultaneously
The effective helix angle more than circle of helical spring at least 4 is enclosed, and the spiral that the effective pitch of effective helix angle is equal pitch, spiral central diameter
From centre to both ends Rearrangments.
The load envnlope line of the spring is cumulative type non-linear line, and is continuous or zonal cooling, this is conducive to
Prevent the generation of its resonance and flutter；It is one group that the big I of pitch takes different pitches or a few circles between each circle
Take into several different pitches；Pitch can ascending unidirectional array, also can be by bi-directional arrangement broad in the middle small in ends.
The pitch of middle convex not doubling-up helical spring is identical, and spiral central diameter is from centre to both ends Rearrangments, and middle convex is not
Doubling-up helical spring plays support framework, has good nonlinear characteristic and damping and amortization, is particularly carried in system during work
Lotus, which increases, is mutated or can be played when overloading and doubling-up occurs, improves bearing capacity, increases system stiffness and noise reduction, noise reduction, vibration damping
Effect.
Fig. 3 is middle convex spring adjacent turn not doubling-up schematic diagram, from the figure 3, it may be seen that convex spring is in axis direction in this
Position circle is symmetrical above and below, then middle position loop diameter is maximum and rigidity is minimum, therefore easy doubling-up, if its radius is R, as long as theoretically then controlling
Spring is in maximum axialUnder effect, spring middle position circle and the normal distance of neighbouring coil spring outer circle>, i.e.,
The not doubling-up of entire motion process can be achieved.If known spring wire diameter, the rigidity of spring middle position circle, spring axial screw
Away from, then rigidityIt should meet
（1）
ForThe minimum axial direction pitch of the lower middle position spring not doubling-up of effect, if setting=0.1, then have, it is defined as the maximum allowable load of spring not doubling-up.By Tu Ke get。
Then have（2）
With formula（1）Simultaneous can obtain
Thus the not doubling-up of grinder system main vibration spring can be realized.
The distribution situation of middle convex not doubling-up helical spring group shown in Fig. 4, middle convex not doubling-up helical spring is in vibromill
Two rows are put in middle edge with electric machine main shaft vertical direction, and position 1-6 is placement location of the spring in vibromill, and edge is parallel with electric machine main shaft
3 rows are placed in direction, are formed 6 springs and are evenly distributed with state, with
Just mill tube can normally complete vibratory milling work.
The crate tire of isolation spring this example selection rubber duck composite material, experiment proof and General Purpose Rubber spring,
Metal spring is compared, and vibration isolating effect is considerably better, and not only vibration absorbing performance is good, noise is low, and simple in structure, good economy performance, tool
There is very high cost performance.
Claims (2)
- Simultaneously 1. the side-mounted double-mass vibrating of coil spring is not ground convexity, including main vibrating system and vibrating isolation system, it is characterised in that：The main vibrating system is included through the vibrating motor for being used as exciting source of Frequency Converter Control, at least one electric with the vibration The mill tube of machine connection and the weight body with mill tube flanged joint, the vibrating motor, the mill tube and upper plastid frame form Plastid, one end of lower plastid are connected with main vibration spring group, and the lower plastid is connected by the main vibration spring group with vibrating isolation system；The vibrating isolation system includes the isolation spring being connected with the lower plastid other end, and the isolation spring passes through pedestal and ground Base is connected；The main vibration spring group is made of several middle convex not doubling-up helical springs, and each spring is by a steel wire coil around structure It forming, steel wire is wound into convexity type helical structure, the effective helix angle more than middle circle of convex not doubling-up helical spring at least 4, and The effective pitch of effective helix angle is the spiral of equal pitch, and spiral central diameter is distributed from centre to both ends in Rearrangments；Middle convex not doubling-up helical spring puts several rows in vibromill along with electric machine main shaft vertical direction, and edge is parallel with electric machine main shaft Direction is placed several rows, is formed spring and is evenly distributed with state；The isolation spring is isolation spring made of composite material.
- 2. simultaneously the side-mounted double-mass vibrating of coil spring is not ground convexity according to claim 1, it is characterised in that：The mill tube is situated between Matter is two or more different proportionings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720793553.6U CN207446383U (en) | 2017-07-03 | 2017-07-03 | Simultaneously the side-mounted double-mass vibrating of coil spring is not ground convexity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720793553.6U CN207446383U (en) | 2017-07-03 | 2017-07-03 | Simultaneously the side-mounted double-mass vibrating of coil spring is not ground convexity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207446383U true CN207446383U (en) | 2018-06-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113834799A (en) * | 2021-07-29 | 2021-12-24 | 杭州佰迈医疗科技有限公司 | Separation system for target substance in biological liquid sample |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113834799A (en) * | 2021-07-29 | 2021-12-24 | 杭州佰迈医疗科技有限公司 | Separation system for target substance in biological liquid sample |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180605 |