CN204107826U - A kind of many vibration shape hydraulic vibrating screen - Google Patents
A kind of many vibration shape hydraulic vibrating screen Download PDFInfo
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- CN204107826U CN204107826U CN201420408634.6U CN201420408634U CN204107826U CN 204107826 U CN204107826 U CN 204107826U CN 201420408634 U CN201420408634 U CN 201420408634U CN 204107826 U CN204107826 U CN 204107826U
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Abstract
The utility model discloses a kind of many vibration shape hydraulic vibrating screen, comprise screen box and support; Screen box is arranged on support by resiliency supported; Also comprise two hydraulic cylinders, two hydraulic cylinders are all removable or be rotatingly arranged on support, the telescopic end of two hydraulic cylinders is all fixedly connected with screen box or hinged, and the expansion link of two hydraulic cylinders becomes predetermined angular, and the straight line at two expansion link places is all through the barycenter of screen box.Two hydraulic cylinders are removable or be rotatingly arranged on support, the telescopic end of the two does stretching motion according to certain predetermined rule, the two acts on barycenter place, screen box can be made to vibrate according to certain track, can form the oscillation trajectory of straight line, circle, ellipse or other shapes.Change the parameter of telescopic end stretching motion, can change the vibration shape or the vibration parameters of screen box, in addition, this vibratory sieve, when starting and stop, can being crossed resonance region fast, avoid screen box to damage.
Description
Technical field
The utility model relates to vibratory sieve technical field, particularly relates to a kind of many vibration shape hydraulic vibrating screen.
Background technology
Vibratory sieve is generally used for material screening, dehydration etc., and vibratory sieve has the screen box that bottom surface is screening face, when screen box vibrates according to certain track, is thrown by the material of its inside, and when material falls, small particles material, water are out screened by screening face.
The vibratory sieve of current use is all that the vibration utilizing oscillator exciting to produce drives screen box vibration, divides, comprise circular shale shaker, linear vibrating screen and elliptically vibrating screen from the vibration shape.The oscillation trajectory ratio of circular shale shaker and linear vibrating screen is easier to realize, and elliptically vibrating screen need arrange two oscillators, and the vibration vector of two oscillators synthesizes according to certain mode can form oval oscillation trajectory.The vibratory sieve of the various vibration shape has respective merits and demerits, concrete, can require the vibratory sieve selecting the corresponding vibration shape according to the screening of material.
After vibratory sieve sets, just determine the vibration shape of vibratory sieve, during work, can only according to the vibration shape vibration of setting.Parameter during oscillator exciting is certain, and then determines the vibration parameters of screen box, can not adjust the vibration parameters of screen box in the course of work, if will change the vibration parameters of screen box, such as amplitude, needs to shut down adjustment.
In addition; by the vibrative vibratory sieve of oscillator exciting; in the process started and shut down, resonance region, when vibration frequency close to vibratory sieve entirety of the vibration frequency of oscillator; vibratory sieve can produce resonance; resonance can produce strong impact to vibratory sieve, particularly in stopping process, because the time of shutting down is longer; the time of resonance is longer, may cause the serious consequences such as crossbeam fracture, screen box cracking.
Therefore; how to design a kind of vibratory sieve, this vibratory sieve not only can change the vibration shape in vibration processes, and can change vibration parameters in vibration processes; can cross resonance region fast in addition in the process started and shut down, be the technical problem that those skilled in the art are badly in need of solving at present.
Utility model content
The purpose of this utility model is to provide a kind of many vibration shape hydraulic vibrating screen, and this vibratory sieve not only can change the vibration shape in vibration processes, and can change vibration parameters in vibration processes, can cross resonance region fast in addition in the process started and shut down.
In order to realize above-mentioned technical purpose, the utility model provides a kind of many vibration shape hydraulic vibrating screen, comprises screen box and support; Described screen box is arranged on described support by resiliency supported; Also comprise two hydraulic cylinders, two described hydraulic cylinders are all removable or be rotatingly arranged on described support, the telescopic end of two described hydraulic cylinders is all fixedly connected with described screen box or hinged, the expansion link of two described hydraulic cylinders becomes predetermined angular, and the straight line at two described expansion link places is all through the barycenter of described screen box.
Preferably, two described telescopic ends are all fixedly connected with described screen box; Two described hydraulic cylinders are arranged on described support respectively by slide, and the two can slide along respective described slide respectively, and wherein the direction of the described slide of one is parallel to the direction of the described expansion link of another one.
Preferably, two described telescopic ends are all hinged with the barycenter place of described screen box; Two described hydraulic cylinders are arranged on described support respectively by hinged seat, and the two can rotate along respective described hinged seat respectively.
Preferably, the described expansion link of two described hydraulic cylinders is mutually vertical.
Preferably, in two described hydraulic cylinders, the described expansion link of one is parallel to the base plate of described screen box, and the described expansion link of another one is perpendicular to the base plate of described screen box.
Preferably, described support is provided with flat board, described flat board and described support is hinged and the size of the two angle is adjustable, and described screen box is arranged on described flat board by described resiliency supported, and two described hydraulic cylinders are also all arranged on described flat board.
Preferably, described resiliency supported comprises four springs, and the rigidity of four described springs is identical and symmetrical relative to the described barycenter of described screen box.
Preferably, described resiliency supported comprises four springs, and four described springs are inversely proportional to the distance of the described barycenter of described screen box and the rigidity of four described springs.
Preferably, two described hydraulic cylinders, respectively by HYDRAULIC CONTROL SYSTEM, make two described expansion links can do stretching motion according to the characteristics of motion predetermined separately respectively.
Preferably, the feed end of described screen box is provided with checkout gear, described checkout gear can detect the granularity of the material entering described screen box or moisture content and pass to described hydraulic system, and described hydraulic system can regulate two described expansion links described characteristics of motion separately according to described granularity or moisture content.
Many vibration shape hydraulic vibrating screen that the utility model provides, comprises screen box and support; Screen box is arranged on support by resiliency supported; Also comprise two hydraulic cylinders, two hydraulic cylinders are all removable or be rotatingly arranged on support, the telescopic end of two hydraulic cylinders is all fixedly connected with screen box or hinged, and the expansion link of two hydraulic cylinders becomes predetermined angular, and the straight line at two expansion link places is all through the barycenter of screen box.
When two hydraulic cylinders are all movably arranged on support, the telescopic end of the two is all fixedly connected with screen box; Two hydraulic cylinders are all rotating when being arranged on support, and the telescopic end of the two is all hinged at barycenter place with screen box.The telescopic end of both control does stretching motion according to certain predetermined rule, the telescopic end of one can drive another one to move or rotate when doing stretching motion, the straight line at the expansion link place of two hydraulic cylinders is all through screen box barycenter, two hydraulic cylinders act on power on screen box all through the barycenter of screen box by telescopic end, and screen box can be made to do translation vibration.When two telescopic ends do stretching motion according to certain predetermined rule simultaneously, two active forces synthesize at screen box barycenter place, screen box can be made to do translation vibration according to certain track, and the track of screen box vibration can be straight line, circle, ellipse, other rule or irregular shapes.
The frequency of two telescopic end stretching motions is identical, changes the parameter of stretching motion, just can change the vibration shape or the vibration parameters of screen box, and such as, the phase difference changing two telescopic end stretching motions can change the oscillation trajectory of screen box, changes the vibration shape of vibratory sieve; Change the amplitude of two telescopic end stretching motions, just can change the amplitude of screen box, change the vibration parameters of screen box; In addition, this vibratory sieve, when starting and stop, can being crossed resonance region fast, avoid screen box to damage.
In a kind of concrete mode, two telescopic ends are all fixedly connected with screen box; Two hydraulic cylinders are arranged on support respectively by slide, and the two can slide along respective slide respectively, and wherein the direction of the slide of one is parallel to the direction of the expansion link of another one.
In another kind of concrete mode, two telescopic ends are all hinged at barycenter place with screen box; Two hydraulic cylinders are arranged on support respectively by hinged seat, and the two can rotate along respective hinged seat respectively.
In said structure, the expansion link of two hydraulic cylinders can be mutually vertical.
Further, in two hydraulic cylinders, the expansion link of one is parallel to the base plate of screen box, and the expansion link of another one is perpendicular to the base plate of screen box.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first detailed description of the invention of many vibration shape hydraulic vibrating screen provided by the utility model;
Fig. 2 is the structural representation of many vibration shape hydraulic vibrating screen the second detailed description of the invention provided by the utility model;
Fig. 3 is the structural representation of the third detailed description of the invention of many vibration shape hydraulic vibrating screen provided by the utility model;
Fig. 4 is the structural representation of many vibration shape hydraulic vibrating screen provided by the utility model 4th kind of detailed description of the invention;
Fig. 5 is the structural representation of many vibration shape hydraulic vibrating screen provided by the utility model 5th kind of detailed description of the invention;
Fig. 6 is the structural representation of many vibration shape hydraulic vibrating screen provided by the utility model 6th kind of detailed description of the invention;
Fig. 7 is the structural representation of many vibration shape hydraulic vibrating screen provided by the utility model 7th kind of detailed description of the invention;
Fig. 8 is the structural representation of many vibration shape hydraulic vibrating screen provided by the utility model 8th kind of detailed description of the invention;
Wherein, the Reference numeral in Fig. 1 to Fig. 8 and the corresponding relation between component names as follows:
Screen box 1; Barycenter 11; Support 2; Hydraulic cylinder 3; Telescopic end 31; Expansion link 32; Slide 4; Hinged seat 5; Dull and stereotyped 6; Spring 7; Hydraulic system 8; Checkout gear 9.
Detailed description of the invention
Core of the present utility model is to provide a kind of many vibration shape hydraulic vibrating screen, and this vibratory sieve not only can change the vibration shape in vibration processes, and can change vibration parameters in vibration processes, can cross resonance region fast in addition in the process started and shut down.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1 to Fig. 8, Fig. 1 to Fig. 8 is respectively the first structural representation to the 8th kind of detailed description of the invention of many vibration shape hydraulic vibrating screen provided by the utility model.
In a kind of concrete embodiment, the utility model provides a kind of many vibration shape hydraulic vibrating screen, comprises screen box 1 and support 2; Screen box 1 is arranged on support 2 by resiliency supported; Also comprise two hydraulic cylinders 3, two hydraulic cylinders 3 are all removable or be rotatingly arranged on support 2, the telescopic end 31 of two hydraulic cylinders 3 is all fixedly connected with screen box 1 or hinged, the expansion link 32 one-tenth predetermined angular of two hydraulic cylinders 3, the straight line at two expansion link 32 places is all through the barycenter 11 of screen box 1.
When two hydraulic cylinders 3 are all movably arranged on support 2, the telescopic end 31 of the two is all fixedly connected with screen box 1; Two hydraulic cylinders 3 are all rotating when being arranged on support 2, and the telescopic end 31 of the two is all hinged with the barycenter place of screen box 1.
The telescopic end 31 of one can drive another one to move or rotate when doing stretching motion, the straight line at expansion link 32 place of two hydraulic cylinders 3 is all through barycenter 11, the power that two hydraulic cylinders 3 are acted on screen box 1 by telescopic end 31 all can make screen box 1 do translation vibration through barycenter 11, two power of screen box 1 in the synthesis of barycenter place.
When the telescopic end 31 of control two hydraulic cylinders 3 does stretching motion according to certain predetermined rule, two active forces synthesize at barycenter place, screen box 1 can be made to do translation vibration according to certain track, the track that screen box 1 vibrates is determined by the characteristics of motion of two telescopic ends 31, the characteristics of motion changing telescopic end 31 can change the oscillation trajectory of screen box 1, and the oscillation trajectory of screen box 1 can be straight line, circle, ellipse, other rule or irregular shapes.
When the telescopic end 31 of two hydraulic cylinders 3 does stretching motion, can the shape of composition rule when frequency is identical, change the parameter of telescopic end 31 stretching motion, the vibration shape or the vibration parameters of screen box 1 can be changed, this vibratory sieve not only can change the vibration shape in vibration processes, and can also change vibration parameters.
In addition, the stretching motion of expansion link 31 can start or stop fast, and the vibration of vibratory sieve can be made to start or stop fast, quickly through resonance region, avoids screen box 1 to produce resonance, avoids screen box 1 to damage.
Preferred embodiment, as shown in Figures 1 to 4, the telescopic end 31 of two hydraulic cylinders 3 is all fixedly connected with screen box 1 one; Two hydraulic cylinders 3 are arranged on support 2 respectively by slide 4, and the two can slide along respective slide 4 respectively, and wherein the direction of the slide 4 of one is parallel to the direction of the expansion link 32 of another one.
When the telescopic end 31 of control two hydraulic cylinders 3 does stretching motion according to certain predetermined rule, screen box 1 can be made to do translation vibration according to the track that certain is determined.
Two hydraulic cylinders 3 are arranged to the structure shown in Fig. 1, and angle and two hydraulic cylinders 3 of the expansion link 32 of two hydraulic cylinders 3 are arbitrary value with the angle of screen box bottom surface.
When the telescopic end 31 of a hydraulic cylinder 3 is motionless, when the telescopic end 31 of another hydraulic cylinder 3 does stretching motion, the motionless hydraulic cylinder 3 of telescopic end 31 will be driven and move along slide 4, now, screen box 1 does straight-line oscillation along with the stretching motion of telescopic end 31, and the parameter of straight-line oscillation is determined by the kinematic parameter of the telescopic end 31 making stretching motion.
When the telescopic end 31 of two hydraulic cylinders 3 does stretching motion all sinusoidally:
In FIG, suppose that y-axis is by screen box barycenter between two expansion links, become arbitrarily angled with expansion link, x-axis is vertical with y-axis by barycenter, two expansion links 32 are respectively α and β with the angle of y-axis, when two telescopic ends 31 do stretching motion according to the rule of Asin (ω t) and Bsin (ω t) respectively, the component of two stretching motions in x-axis and y-axis is:
x＝Asinαsin(ωt)-Bsinβsin(ωt)；
y＝Acosαsin(ωt)+Bcosβsin(ωt)；
Merge: x=(Asin α-Bsin β) sin (ω t);
y＝(Acosα+Bcosβ)sin(ωt)；
The ratio of x and y is (Asin α-Bsin β)/(Acos α+Bcos β), for definite value, the coordinate of x and y can form an oblique line, then the oscillation trajectory of screen box 1 is straight line, namely the value changing A and B changes the value of (Asin α-Bsin β)/(Acos α+Bcos β), can form the straight line of Different Slope.
When the phase difference of the stretching motion difference pi/2 of two telescopic ends 31, when namely two telescopic ends 31 do stretching motion according to the rule of Asin (ω t) and Bcos (ω t) respectively, the component of two stretching motions in x-axis and y-axis is:
x＝Asinαsin(ωt)-Bsinβcos(ωt)；
y＝Acosαsin(ωt)+Bcosβcos(ωt)；
If, sin α sin β=cos α cos β,
Then x
2+ y
2=[Asin α sin (ω t)]
2+ [Bsin β cos (ω t)]
2+ [Acos α sin (ω t)]
2+ [Bcos β cos (ω t)]
2=A
2sin
2(ω t)+B
2cos
2(ω t);
If A=B, when namely the amplitude of two telescopic end 31 stretching motions is identical, x
2+ y
2=A
2, the circle of the oscillation trajectory of screen box 1 to be radius be A;
Sin α sin β=cos α cos β, draws cos α cos β-sin α sin β=0, according to two jiaos and cosine formula draw cos (alpha+beta)=0, then alpha+beta=90 °;
As shown in Figure 2, the expansion link 32 of two hydraulic cylinders 3 is mutually vertical for further preferred embodiment.
Similar to the above embodiments, the telescopic end 31 of a hydraulic cylinder 3 is motionless, and when the telescopic end 31 of another hydraulic cylinder 3 does stretching motion, screen box 1 does straight-line oscillation.
In the telescopic end 31 of two hydraulic cylinders 3, one does stretching motion sinusoidally, when another one does stretching motion according to cosine rule, can form circular vibration track.Such as: two reference axis are respectively by two hydraulic cylinder extension bars, suppose that the straight line one at two expansion link 32 places is x-axis, another one is y-axis, and the characteristics of motion in x-axis is x=Asin (ω t), the characteristics of motion in y-axis is y=Acos (ω t), then x
2+ y
2=A
2, i.e. the circle of the oscillation trajectory of screen box 1 to be radius be A.
In above-described embodiment, the amplitude of two telescopic end 31 stretching motions is identical, and when the amplitude of the two stretching motion is different, the characteristics of motion in x-axis and y-axis is respectively, x=Asin (ω t), y=Bcos (ω t), then x
2/ A
2+ y
2/ B
2=1, namely the movement locus of screen box 1 is oval, and larger in A and B is major semiaxis, and less is semi-minor axis.
When the oscillation trajectory of screen box 1 is circular or oval, can think that two telescopic ends 31 do stretching motion all sinusoidally, and the phase difference of the two difference pi/2; Then can draw, in x-axis and y-axis, telescopic end 31 does stretching motion according to following rule respectively:
x＝Asin(ωt+M)；
y＝Bsin(ωt)；
Wherein, M is the change of phase difference, phase difference, can change the oscillation trajectory of screen box 1, according to above-described embodiment, can draw phase difference M, amplitude A, B, and the relation of screen box 1 oscillation trajectory:
When M is the even-multiple of pi/2, be 0, the integral multiple of π or π, the ratio of x and y is definite value A/B, then the oscillation trajectory of screen box 1 is straight line, and the value changing A and B also just changes the slope of straight line, also just changes the deflection of straight-line oscillation.When the even multiples that M is 0 or π, be that arctan (A/B) oscillation trajectory is at one, three quadrants with y-axis angle.When M is the odd number multiple of π, with y-axis angle be arctan (-A/B) i.e. oscillation trajectory two, four-quadrant.
When M is the odd-multiple of pi/2, during A=B, the oscillation trajectory of screen box 1 is circular, and during A ≠ B, the oscillation trajectory of screen box 1 is oval; As B > A, ellipse short shaft, major axis are by x-axis, y-axis, and as A > B, transverse, minor axis are by x-axis, y-axis, at this moment the value changing A and B can change the ratio of ellipse long and short shaft, can not change the sensing of transverse.When M equals pi/2, direction of vibration is counterclockwise; When M equals 3 pi/2, direction of vibration is clockwise.
When M is not the even-multiple of pi/2, it is not namely 0, the integral multiple of π or π; And M is not when being the odd-multiple of pi/2.When M gets rid of above two kinds of situations, namely the angle that the value changing A and B can change transverse and Y-axis changes the sensing of transverse, also just changes vibrating direction angle, while also can change the ratio of ellipse long and short shaft.
For B > A, when phase difference M changes in 0-2 π:
During 0-pi/2, the oscillation trajectory of screen box 1 gradually becomes oval from straight line, namely the ratio of transverse and minor axis from large to small, wherein, circle is the equal ellipse of major and minor axis, straight line to be minor axis be zero ellipse, for two kinds of special circumstances of ellipse, major axis is diminished until overlap with y-axis by arctan (A/B) gradually with the angle of Y-axis, and angle becomes zero degree, therefore just changes vibrating direction angle;
During pi/2-π, the oscillation trajectory of screen box 1 gradually becomes straight line from ellipse, and namely the ratio of transverse and minor axis changes from small to big, and the angle of transverse and Y-axis gradually becomes arctan (-A/B) by zero degree, angle becomes large gradually, therefore just changes vibrating direction angle;
During π-3 pi/2, the oscillation trajectory of screen box 1 gradually becomes oval from straight line, and namely the ratio of transverse and minor axis from large to small, and transverse diminishes until overlap with y-axis with the angle of Y-axis by arctan (-A/B) gradually, angle becomes zero degree, therefore just changes vibrating direction angle;
During 3 pi/2-2 π, the oscillation trajectory of screen box 1 gradually becomes straight line from ellipse, and namely the ratio of transverse and minor axis changes from small to big, and the angle of transverse and Y-axis gradually becomes arctan (A/B) by zero degree, angle becomes large gradually, therefore just changes vibrating direction angle;
Angle and the ellipse long and short shaft ratio of transverse and Y-axis can be controlled by the value of control M.
M is counterclockwise at one, three quadrant direction of vibration at (0-pi/2) transverse; M when (pi/2-π) transverse two, four-quadrant direction of vibration is counterclockwise; M when (π-3 pi/2) transverse two, four-quadrant direction of vibration is clockwise; M is clockwise at one, three quadrant direction of vibration at (3 pi/2-2 π) transverse.
Mention above, when M is the odd-multiple of pi/2, during A=B, the oscillation trajectory of screen box 1 is circular, and that works as the odd-multiple that M is not pi/2, and during A=B, the oscillation trajectory of screen box 1 is as follows:
M [0, pi/2) in change time, oscillation trajectory is at one, three quadrants, and oscillation trajectory becomes oval from straight line, and the ratio of ellipse long and short shaft diminishes gradually, and the angle of straight line and transverse and x-axis is 45 °;
M (pi/2, π] in change time, oscillation trajectory two, four-quadrant, oscillation trajectory becomes straight line from ellipse, and the ratio of ellipse long and short shaft becomes large gradually, and the angle of transverse and straight line and x-axis is 135 °;
M [π, 3 pi/2s) in change time, oscillation trajectory two, four-quadrant, oscillation trajectory becomes oval from straight line, and the ratio of ellipse long and short shaft diminishes gradually, and the angle of transverse and straight line and x-axis is 135 °;
M (3 pi/2s, 2 π] in change time, oscillation trajectory is at one, three quadrants, and oscillation trajectory becomes straight line from ellipse, and the ratio of ellipse long and short shaft becomes large gradually, and the angle of straight line and transverse and x-axis is 45 °.
During phase difference M'=M+n π, n is even number, and phase difference is M' when being M with phase difference, and the oscillation trajectory of screen box 1 is identical.
Adjustment phase difference M can change the oscillation trajectory of screen box 1, namely can change the vibration shape of vibratory sieve, vibrating direction angle, make vibratory sieve can realize the vibration of the multiple vibration shape and different vibrating direction angle.When screen box 1 vibrates under the selected vibration shape, the parameter of adjustment telescopic end 31 stretching motion, can change the vibration parameters of screen box 1.
Angle in Fig. 1 between two hydraulic cylinders 3 and two hydraulic cylinders 3 are all arbitrary value with the angle of screen box 1 base plate, and suppose that y-axis is by screen box 1 barycenter and to be between two expansion links 32 arbitrarily angled, x-axis is vertical with y-axis by barycenter.Two expansion links 32 are respectively α and β with the angle of y-axis, and elliptic parametric equation is:
x＝Asinαsin(ωt+M)-Bsinβsin(ωt)；
y＝Acosαsin(ωt+M)+Bcosβsin(ωt)；
At this moment the mode controlling elliptical vibration track except with except above-described parameter, also add and controls with the parameter alpha of two expansion links and y-axis angle and β.The angle of transverse and y-axis and the ratio of ellipse long and short shaft can be changed by control α and β.
Further, the expansion link 32 of two hydraulic cylinders 3 can be arranged arbitrarily with the angle of screen box 1 base plate, the structure shown in Fig. 2 can be set to, also the structure shown in Fig. 3 can be set to, namely, the expansion link 32 of a hydraulic cylinder 3 is made to be parallel to the base plate of screen box 1, the expansion link 32 of another hydraulic cylinder 3 is perpendicular to the base plate of screen box 1, its characteristics of motion is similar to the characteristics of motion of embodiment in Fig. 2, the difference of the two is the direction difference of movement locus, such as, when screen box 1 is according to elliptic vibrations, transverse is different from the angle of screen box 1 base plate.
It should be noted that, when telescopic end 31 does stretching motion, the maximum of extension elongation and the difference of minimum of a value, equal the amplitude of the expansion link 32 of twice, and namely the maximum of extension elongation and the position of minimum of a value are respectively the position of the maximum of positive amplitude and the maximum of negative amplitude.
Structure shown in Fig. 2 is that the expansion link 32 of two hydraulic cylinders 3 is mutually vertical, this structure is the special circumstances of structure shown in Fig. 1, vibratory sieve in Fig. 2 can realize the vibration shape track of straight line, circle, ellipse or other shapes, and in Fig. 1, vibratory sieve also can realize the vibration shape track of straight line, circle, ellipse or other shapes.
In another preferred embodiment, concrete structure is as shown in Fig. 5 to 8, and the telescopic end 31 of two hydraulic cylinders 3 is all hinged with the barycenter place of screen box 1; Two hydraulic cylinders 3 are arranged on support 2 respectively by hinged seat 5, and the two can rotate along respective hinged seat 5 respectively.
Comparison diagram 5 and the structure in Fig. 1, in two kinds of embodiments, when the telescopic end 31 of the hydraulic cylinder 3 of correspondence position does the stretching motion of identical rule, along the hydraulic cylinder 3 of hydraulic cylinder 3 correspondence of slide 4 slip in Fig. 1, will rotate around hinged seat 5 in Figure 5.
The telescopic end 31 of one of them hydraulic cylinder 3 does stretching motion, another hydraulic cylinder does not do stretching motion, another hydraulic cylinder 3 rotates, the track of its telescopic end 31 is circular arc, when the radius of circular arc is enough large, circular arc can be approximately equal to straight line, and its course bearing is approximately the tangential direction of motionless hydraulic cylinder 3 and circular arc during hinged end zero amplitude position, screen box barycenter place.
When slide is installed, two hydraulic cylinders are all rectilinear motions, the track of two hydraulic cylinders directly synthesizes, when hinged seat is installed, when a hydraulic cylinder drives the hinged end of another hydraulic cylinder and screen box to move, its movement locus is the nearly Straight Line and Arc swung along zero amplitude, and another hydraulic cylinder is also like this, and then the track of these two hydraulic cylinders synthesizes again.
In Fig. 5 and Fig. 1 two kinds of embodiments, when the telescopic end 31 of the hydraulic cylinder 3 of correspondence position does the stretching motion of identical rule, in Fig. 5 the oscillation trajectory synthetic method of screen box 1 and Fig. 1 synthetic method similar.Vibratory sieve in Fig. 5 can obtain the oscillation trajectory of near linear, sub-circular or approximate ellipsoidal.This vibratory sieve also can realize the multiple vibration shape, and can adjust vibration parameters in vibration processes.
For the hydraulic cylinder of two hinged end distances 300 millimeters, when vertical one end is hinged mutually for two hydraulic cylinders, the other end connects with hinged seat respectively, supposing that a hydraulic cylinder does not vibrate another hydraulic cylinder amplitude is 4 millimeters, at this moment the pin joint of two vibrating hydraulic cylinders can draw a circular arc, the sagitta of this circular arc is 0.027 millimeter, and that is the linearity of pin joint movement locus is 0.027 millimeter.
For the hydraulic cylinder of two hinged end distances 400 millimeters, when vertical one end is hinged mutually for two hydraulic cylinders, the other end connects with hinged seat respectively, supposing that a hydraulic cylinder does not vibrate another hydraulic cylinder amplitude is 4 millimeters, at this moment the pin joint of two vibrating hydraulic cylinders can draw a circular arc, the sagitta of this circular arc is 0.02 millimeter, and that is the linearity of pin joint movement locus is 0.02 millimeter.
Preferred embodiment as shown in Figure 6, the expansion link 32 of two hydraulic cylinders 3 is mutually vertical, and this embodiment is approximate with the embodiment in Fig. 2 for one.When the telescopic end 31 of two hydraulic cylinders 3 does stretching motion according to certain rule, screen box 1 can be made to form the oscillation trajectory of near linear, sub-circular, approximate ellipsoidal or other shapes, and its derivation is similar to the above, repeats no more herein.
In further embodiment, when two hydraulic cylinders 3 are set, it can be the structure shown in Fig. 7, the expansion link 32 of a hydraulic cylinder 3 is made to be parallel to the base plate of screen box 1, the expansion link 32 of another hydraulic cylinder 3 is perpendicular to the base plate of screen box 1, its characteristics of motion is similar to the characteristics of motion of embodiment in Fig. 6, and the difference of the two is the direction difference of movement locus.
In the various embodiments described above, the frequency of telescopic end 31 stretching motion of two hydraulic cylinders 3 is identical, change the parameter of stretching motion, just can change the vibration shape or the vibration parameters of screen box 1, such as, the phase difference changing two telescopic end 31 stretching motions can change oscillation trajectory, the vibrating direction angle of screen box 1, changes the vibration shape of vibratory sieve; Change the amplitude of two telescopic end 31 stretching motions, just can change amplitude, vibrating direction angle that screen box 1 vibrates, change the vibration parameters of screen box 1.The numerical value of M and A, B cooperatively interacts and just can obtain the most appropriate oscillation trajectory and vibration parameters.In addition, the stretching motion of expansion link 31 can start or stop fast, and the vibration of vibratory sieve can be made to start or stop fast, quickly through resonance region, avoids screen box 1 to produce resonance, avoids screen box 1 to damage.
In the respective embodiments described above, can also angle regulator be set, regulate the base plate of screen box 1 and the angle of horizontal plane, change the direction of oscillation trajectory, the structure of angle regulator has various ways, and a kind of structure as shown in Figure 4 and Figure 8, support 2 arranges dull and stereotyped 6, dull and stereotyped 6 is hinged and the size of the two angle is adjustable with support 2, and screen box 1 arranges on the plate 6 by resiliency supported, and two hydraulic cylinders 3 are also all arranged on the plate 6.
Concrete, the rigidity that resiliency supported can comprise four springs, 7, four springs 7 is identical and symmetrical relative to the barycenter 11 of screen box 1, or, four springs 7 are inversely proportional to the distance of the barycenter 11 of screen box 1 and the rigidity of four springs 7, and operationally spring 7 plays and supports screen box 1 and cushioning effect.
In the respective embodiments described above, two hydraulic cylinders 3 are controlled by hydraulic system 8 respectively, make two telescopic ends 31 can do stretching motion according to the characteristics of motion predetermined separately respectively, several characteristics of motion of telescopic end 31 are listed in above-described embodiment, its characteristics of motion is not limited thereto several situations enumerated in patent, the synthesis of other the characteristics of motion, also can make screen box 1 vibrate according to certain track.
In further preferred embodiment, the feed end of screen box 1 is provided with checkout gear 9, checkout gear 9 can detect the parameter of materials such as granularity, moisture content of the material entering screen box 1 and pass to hydraulic system 8, the characteristics of motion that hydraulic system 8 can regulate two expansion links 32 respective according to the parameter of materials such as granularity, moisture content.
Concrete structure please refer to Fig. 4, this vibratory sieve can realize intellectuality, the parameter of materials such as granularity, moisture content of material is detected by checkout gear 9, hydraulic system is according to the parameter of materials such as granularity, moisture content of material, the parameter of adjustment hydraulic cylinder 3 comprises: amplitude, phase angle, vibration frequency etc., and then change oscillation trajectory mode (straight line, circle, ellipse), vibrating direction angle, amplitude, the frequency etc. of vibratory sieve, to realize best screening effect, realize intelligence screening.
When the vibrating direction angle span of vibratory sieve is 30 ° to 60 °, when vibrating direction angle is larger, material each impelling displacement is shorter, and the movement velocity of material is comparatively slow, and material is sieved fully, and this situation is suitable for the screening of difficult screening materials carrying; When vibrating direction angle value is less, each impelling of material, advance distant, material is very fast by time of compass screen surface, and this situation is suitable for the screening of easily sieving material.During bolting material of different nature, can, according to the character of material, select to change vibrating direction angle to reach best screening effect.
Below only list the impact of partial material on vibration parameters, when material dewatering, classification, moisture content, material viscosity and the selection of size to the vibration shape and vibration parameters that enter vibratory sieve inventory all can have an impact.
Above many vibration shape hydraulic vibrating screen provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (10)
1. the hydraulic vibrating screen of the vibration shape more than, comprises screen box (1) and support (2); Described screen box (1) is arranged on described support (2) by resiliency supported; It is characterized in that, also comprise two hydraulic cylinders (3), two described hydraulic cylinders (3) are all removable or be rotatingly arranged on described support (2), the telescopic end (31) of two described hydraulic cylinders (3) is all fixedly connected with described screen box (1) or hinged, the expansion link (32) of two described hydraulic cylinders (3) becomes predetermined angular, and the straight line at two described expansion link (32) places is all through the barycenter (11) of described screen box (1).
2. many vibration shape hydraulic vibrating screen as claimed in claim 1, is characterized in that, two described telescopic ends (31) are all fixedly connected with described screen box (1); Two described hydraulic cylinders (3) are arranged on described support (2) respectively by slide (4), the two can slide along respective described slide (4) respectively, and wherein the direction of the described slide (4) of one is parallel to the direction of the described expansion link (32) of another one.
3. many vibration shape hydraulic vibrating screen as claimed in claim 1, is characterized in that, two described telescopic ends (31) are all hinged with the barycenter place of described screen box (1); Two described hydraulic cylinders (3) are arranged on described support (2) respectively by hinged seat (5), and the two can rotate along respective described hinged seat (5) respectively.
4. many vibration shape hydraulic vibrating screen as claimed in claim 2 or claim 3, is characterized in that, the described expansion link (32) of two described hydraulic cylinders (3) is mutually vertical.
5. many vibration shape hydraulic vibrating screen as claimed in claim 4, it is characterized in that, in two described hydraulic cylinders (3), the described expansion link (32) of one is parallel to the base plate of described screen box (1), and the described expansion link (32) of another one is perpendicular to the base plate of described screen box (1).
6. the many vibration shape hydraulic vibrating screen as described in any one of claims 1 to 3, it is characterized in that, described support (2) is provided with flat board (6), described flat board (6) and described support (2) are hinged and the size of the two angle is adjustable, described screen box (1) is arranged on described flat board (6) by described resiliency supported, and two described hydraulic cylinders (3) are also all arranged on described flat board (6).
7. many vibration shape hydraulic vibrating screen as claimed in claim 6, it is characterized in that, described resiliency supported comprises four springs (7), and the rigidity of four described springs (7) is identical and symmetrical relative to the described barycenter (11) of described screen box (1).
8. many vibration shape hydraulic vibrating screen as claimed in claim 6, it is characterized in that, described resiliency supported comprises four springs (7), and four described springs (7) are inversely proportional to the distance of the described barycenter (11) of described screen box (1) and the rigidity of four described springs (7).
9. the many vibration shape hydraulic vibrating screen as described in any one of claims 1 to 3, it is characterized in that, two described hydraulic cylinders (3) are controlled by hydraulic system (8) respectively, make two described expansion links (32) can do stretching motion according to the characteristics of motion predetermined separately respectively.
10. many vibration shape hydraulic vibrating screen as claimed in claim 9, it is characterized in that, the feed end of described screen box (1) is provided with checkout gear (9), described checkout gear (9) can detect the granularity of the material entering described screen box (1) or moisture content and pass to described hydraulic system (8), and described hydraulic system (8) can regulate according to described granularity or moisture content the described characteristics of motion that two described expansion links (32) are respective.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420408634.6U CN204107826U (en) | 2014-07-23 | 2014-07-23 | A kind of many vibration shape hydraulic vibrating screen |
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| CN201420408634.6U CN204107826U (en) | 2014-07-23 | 2014-07-23 | A kind of many vibration shape hydraulic vibrating screen |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070010A (en) * | 2014-07-23 | 2014-10-01 | 姬玉安 | Multi-vibration type hydraulic vibrating screen |
| CN107489881A (en) * | 2017-09-30 | 2017-12-19 | 成都华气厚普机电设备股份有限公司 | LNG storage tank with bottom valve pump sump and with bottom valve pump sump |
| CN109922895A (en) * | 2016-10-24 | 2019-06-21 | 佩朗股份有限公司 | Fruit pigeonholes with adaptive screening portion |
-
2014
- 2014-07-23 CN CN201420408634.6U patent/CN204107826U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070010A (en) * | 2014-07-23 | 2014-10-01 | 姬玉安 | Multi-vibration type hydraulic vibrating screen |
| CN104070010B (en) * | 2014-07-23 | 2017-02-15 | 姬玉安 | Multi-vibration type hydraulic vibrating screen |
| CN109922895A (en) * | 2016-10-24 | 2019-06-21 | 佩朗股份有限公司 | Fruit pigeonholes with adaptive screening portion |
| CN107489881A (en) * | 2017-09-30 | 2017-12-19 | 成都华气厚普机电设备股份有限公司 | LNG storage tank with bottom valve pump sump and with bottom valve pump sump |
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