CN204503562U - Three-freedom-degree hybrid vibrating screen is rotated in two translations one - Google Patents
Three-freedom-degree hybrid vibrating screen is rotated in two translations one Download PDFInfo
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- CN204503562U CN204503562U CN201520203898.2U CN201520203898U CN204503562U CN 204503562 U CN204503562 U CN 204503562U CN 201520203898 U CN201520203898 U CN 201520203898U CN 204503562 U CN204503562 U CN 204503562U
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Abstract
The utility model discloses a kind of two translations one and rotate Three-freedom-degree hybrid vibrating screen, comprise bracing frame, horizontal exciting device, sieve nest, revolution exciting device, vertical exciting device, auxiliary stopper chain, spring, lifting bolt and hopper.Bracing frame is provided with hopper frame, sieve nest is suspended on bracing frame by spring, lifting bolt, horizontal exciting device, revolution exciting device, vertical exciting device can make sieve nest produce transverse reciprocating vibration respectively, around the reciprocally swinging of trunnion axis and the of reciprocating vibration of vertical direction, auxiliary stopper chain is for limiting the freedom of motion of sieve nest and strengthening kinetic stability.The most multipotency of sieve nest of the present utility model realizes the vibration that three degree of freedom is altogether rotated in two translations one, and the amplitude of all directions, frequency and the parameter such as screen angle, the free degree are all adjustable, screening efficiency is high, unit interval treating capacity is large, also have that compact conformation, working stability are reliable, equipment cost and operation low in energy consumption and control the advantages such as simple.
Description
Technical field
The utility model relates to a kind of vibrosieve apparatus field, and particularly Three-freedom-degree hybrid vibrating screen is rotated in a kind of two translations one.
Background technology
At present, vibratory sieve, in the energy, metallurgy, pottery, building materials, chemical industry and the extensive use of the industry such as agricultural, grain processing, is mainly used for the classification of granule materials.Actual screening efficiency in the unit interval of existing vibratory sieve is lower, and the material dispersion degree on compass screen surface is not high, and the material skewness on compass screen surface, sieves weak effect thoroughly; And it is always undesirable for the screening effect of the difficult screening materials carryings such as moist fine grained level viscous material, sieve aperture is easily blocked, often easily be subject to again the restriction of screen box rigidity by the treating method improving the oscillation intensity of vibratory sieve, on compass screen surface, material dispersion, layering and Inter-layer motion lack enough power.In addition, the vibrational degrees of freedom of existing vibratory sieve is less, is mostly 1-2 the free degree and the free degree is fixed, poor to the adaptability of screening object.The application number of first inventor's design of the present utility model be 201110295715.0 Chinese patent disclose a kind of four-freedom hybrid vibratory sieve owing to adopting vertically arranged moving sets secondary as driving, the dither of vibratory sieve cannot be realized.Although the patent No. of first inventor's design of the present utility model is the Chinese patent of 201110100682.X disclose a kind of Three-freedom-degree hybrid vibrating screen in theory can the vibration in three directions, implementation space, but its vertical direction adopts the vibrating motor of inertial excitation mode to provide power by one, the inertial oscillation of vibrating motor can produce interference to the vibration of two horizontal directions, and lacking rotational freedom in the vibrational degrees of freedom of this technical scheme, screening effect is restricted.Of the present utility model first inventor design the patent No. be 200920143613.5 Chinese patent disclose a kind of four-freedom hybrid vibratory sieve, can implementation space three-dimensional move and a rotation, in rotational freedom, this technical scheme only can produce the rotation around vertical axis; In technical scheme described in this patent, the vibration of vertical direction is driven by linear electric motors, and needs the load overcoming self gravitation generation during linear electric motors motion, not easily realizes dither; Described in this patent, the topology layout of vibratory sieve is unreasonable, cannot be used for the screening operation of a large amount of granule materials in suitability for industrialized production.Of the present utility model first inventor design the patent No. be 201310752446.5 Chinese patent disclose a kind of Variable-freedom-degparallel parallel connection vibration sieve, maximum two movements three in implementation space can rotate the vibration of totally five frees degree, but the freedom of motion of its screen cloth is too much, complex structure, and in actual production, do not need too much freedom of motion; In addition, this vibrating screen mesh needs the meta Vibration Chain cooperative motion of dependence two SPS structures to realize around the rotation of the trunnion axis being parallel to screen length direction, make this rotational vibrations frequency and compass screen surface load all limited.
Three-freedom-degree hybrid vibrating screen is rotated in two translations one that the utility model relates to, the vibration of three degree of freedom is altogether rotated in most two, multipotency implementation space movement one, and the amplitude of each direction of vibration, frequency and the parameter such as screen angle and vibrational degrees of freedom are all adjustable, can overcome the technological deficiency of existing vibratory sieve.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, a kind of two translations one are provided to rotate Three-freedom-degree hybrid vibrating screen, two, sieve nest implementation space movement one particularly can be made to rotate the vibration of three degree of freedom altogether, the technological deficiency of existing vibratory sieve can be overcome, improve the unit interval treating capacity of screening quality and screening operation, reduce the manufacturing cost of equipment simultaneously and run power consumption.
Technical problem to be solved in the utility model realizes by the following technical solutions.
Three-freedom-degree hybrid vibrating screen is rotated in a kind of two translations one, comprises bracing frame, horizontal exciting device, sieve nest, revolution exciting device, vertical exciting device, auxiliary stopper chain, spring, lifting bolt and hopper.Wherein, described bracing frame comprises lower supporter, ceiling hold, and described ceiling hold is positioned at the top of lower supporter and is connected mutually by screw with lower supporter.Lower supporter is provided with the hopper frame for body feed tank under support screen, is provided with main strutbeam and auxiliary strutbeam at the top of ceiling hold, is provided with square connecting plate in the bottom of ceiling hold, square connecting plate is provided with two slide block bearings be arranged symmetrically with; Described horizontal exciting device is used for making sieve nest produce transverse reciprocating vibration, and be fixedly mounted on bottom it on square connecting plate of ceiling hold, its top is connected by screw with sieve nest; Described lifting bolt is arranged on the main strutbeam of ceiling hold, and the upper end of described spring is hooked on the suspension ring of lifting bolt lower end, and the lower end of spring is hooked on sieve nest; Described revolution exciting device is arranged on the side, bottom of sieve nest, produces the reciprocally swinging of trunnion axis around being parallel to sieve nest length direction for making sieve nest; Described vertical exciting device symmetry is arranged on the top of sieve nest, and by two specifications, identical and axis is parallel to each other vibrating motor forms, and sieve nest can be made to produce the of reciprocating vibration of vertical direction when two vibrating motor synchronous backwards rotate; Described auxiliary stopper chain has two groups, for limiting the freedom of motion of sieve nest, strengthens the kinetic stability of sieve nest simultaneously.The top of auxiliary stopper chain is arranged on the auxiliary strutbeam of ceiling hold, and the bottom of auxiliary stopper chain is connected by screw with sieve nest; Described hopper is fixedly mounted on ceiling hold.
Described sieve nest comprises outer screen frame, interior screen frame, screen bed base, screen cloth, angle locker, tie-beam, brace summer and hanger.Wherein, the front end of screen frame is provided with the short mounting hole of horizontal direction outside, and the rear end of screen frame is provided with the long waist shaped hole of vertical direction outside.Described interior screen frame is placed in outer screen frame, is provided with web beam at the middle part of interior screen frame, is provided with four spring fixed seats be arranged symmetrically, for fixed reset spring in the left and right sides of interior screen frame.The front end of interior screen frame is provided with prelocalization axle, and prelocalization axle is connected by screw thread with interior screen frame, and the rear end of interior screen frame is provided with rear locating shaft.Described prelocalization axle be positioned at outer screen frame short mounting hole and can along short mounting hole slippage, described prelocalization axle is fixed on outer screen frame by lock-screw; Described rear locating shaft is positioned at the long waist shaped hole of outer screen frame, and can along the slippage of long waist shaped hole, and described rear locating shaft is connected by angle locker with outer screen frame.Be positioned at directly over screen frame for screen bed base that is fixing, that install screen cloth, two vibration passing beams are provided with in the side, bottom of screen bed base, shaft is provided with at the middle part of screen bed base, and the two ends of described shaft are connected by hinge with interior screen frame, one end of described vibration passing beam is connected by the mode of welding mutually with shaft, and described screen bed base dual-side is connected by four back-moving springs with interior screen frame.Described screen cloth is arranged on screen bed base, is connected between screen cloth with screen bed base by screw or briquetting.Described tie-beam is positioned at the crown center position of outer screen frame, and for installing vertical exciting device and auxiliary stopper chain, and described tie-beam is connected by screw with outer screen frame; Described brace summer is positioned at the front top of outer screen frame, and is connected mutually by the mode of welding with outer screen frame; Described hanger is positioned at the end face of the both sides of outer screen frame, and is connected with outer screen frame.
Described horizontal exciting device comprises horizontal drive motor, commutator, left transversal driving mechanism, right transversal driving mechanism, horizontal power transmission shaft and oscillation crosswise chain.Wherein, described horizontal drive motor is connected with commutator by shaft coupling, for left transversal driving mechanism and right transversal driving mechanism provide oscillation crosswise power; Described oscillation crosswise chain has two groups, and is arranged symmetrically on the square connecting plate of ceiling hold; Output shaft on the left of described commutator is connected with oscillation crosswise chain by left transversal driving mechanism, and the output shaft on the right side of commutator is connected with horizontal power transmission shaft by Hooks coupling universal coupling; Described horizontal power transmission shaft is arranged on square connecting plate by two lateral shaft bearings, and the right-hand member of horizontal power transmission shaft is connected with oscillation crosswise chain by right transversal driving mechanism.
Described left transversal driving mechanism is identical with right transversal driving mechanism structure, is slider-crank mechanism, and left transversal driving mechanism and right transversal driving mechanism are arranged symmetrically on the square connecting plate of ceiling hold.Described right transversal driving mechanism comprises variable eccentric, drive link, slide block assembly and Ω shape guide rail.Wherein, described variable eccentric is arranged on the right-hand member of horizontal power transmission shaft, and be connected by flat key with horizontal power transmission shaft, slip hinge is provided with in the outside of variable eccentric, for regulating the eccentric throw of variable eccentric, and slip hinge is connected by lock-screw with between variable eccentric; One end of described drive link is connected by slip hinge with variable eccentric, and its other end is connected by hinge with slide block assembly; Described slide block assembly is connected by linear bearing with Ω shape guide rail, and described Ω shape guide rail is fixedly mounted on the slide block bearing bottom ceiling hold, is provided with anticollison block at the two ends of Ω shape guide rail.
Described oscillation crosswise chain is used for the horizontal linear vibration that left transversal driving mechanism and right transversal driving mechanism produce to pass to outer screen frame, comprises the first transverse link, the second transverse link, the 3rd transverse link and horizontal ear seat.Wherein, the bottom of the first described transverse link is fixedly mounted on by screw on the slide block assembly of left transversal driving mechanism or right transversal driving mechanism, and the top of the first transverse link is connected by the first lateral rotation parafacies with the second transverse link; The second described transverse link is connected by the second lateral rotation parafacies with the 3rd transverse link; The 3rd described transverse link is connected by the 3rd lateral rotation parafacies with horizontal ear seat; Described horizontal ear seat fixedly mounts outside on screen frame by screw; The first described lateral rotation is secondary, the second lateral rotation is secondary, axis that is the 3rd lateral rotation pair is parallel to each other.Described oscillation crosswise chain is a kind of serial mechanism of PRRR structure, article four, structure is identical and axis is parallel to each other oscillation crosswise chain is arranged symmetrically with outside between screen frame and bracing frame, not only increase rigidity and the structural strength of horizontal exciting device, also define outer screen frame around the rotation of trunnion axis and the rotation around vertical axis that are parallel to sieve nest width.
Described auxiliary stopper chain comprises ears base, check chain and top connecting plate, and described ears base through screws fixedly mounts on the tie-beam of screen frame outside; Described check chain has two groups, and is arranged symmetrically between ears base and top connecting plate; Described top connecting plate is connected mutually with the auxiliary strutbeam of ceiling hold.
Described check chain comprises the first spacing connecting rod, the second spacing connecting rod and position-limiting ear seat.Wherein, the bottom of the described first spacing connecting rod is connected by the first rotation-limited parafacies with ears base, and the top of the first spacing connecting rod is connected by the second rotation-limited parafacies with the second spacing connecting rod; Described second spacing connecting rod is connected by the 3rd rotation-limited parafacies with position-limiting ear seat; Described position-limiting ear seat is connected with top connecting plate by screw; The first described rotation-limited is secondary, the second rotation-limited is secondary, axis that is the 3rd rotation-limited pair is parallel to each other.Described check chain is a kind of serial mechanism of RRR structure, article four, structure is identical and axis is parallel to each other check chain is arranged symmetrically with outside between screen frame and ceiling hold, define outer screen frame around be parallel to sieve nest length direction trunnion axis rotation and around vertical axis rotation and vertically move, also contribute to improve the stability of sieve nest motion.
Described revolution exciting device comprises revolution drive motors, exciting cam, cam drive axle.Wherein, described revolution drive motors is fixedly mounted on the bottom surface of interior screen frame, and revolution drive motors is connected by shaft coupling with cam drive axle, for exciting cam provides the power of revolution exciting; Described cam drive axle is arranged on the bottom surface of interior screen frame by two gyroaxis bearings; Described exciting cam has two, and is arranged symmetrically in the two ends of cam drive axle, and the outer edge surface of described exciting cam remains with the vibration passing beam bottom screen bed base and contacts under the effect of back-moving spring.
Described angle locker comprises outer loop bar, interior slide bar and adjusting bolt, for the position in the long waist shaped hole of the rear locating shaft screen frame outside that limits interior screen frame, and then the inclination angle of screen frame in limiting.Wherein, one end of described outer loop bar is connected by screw with the rear locating shaft of interior screen frame, and its other end is provided with U-lag; One end of described interior slide bar is placed in the U-lag of outer loop bar, and is connected by adjusting bolt with outer loop bar, and the other end of interior slide bar is connected by hinge with outer screen frame.
From the angle of theory of mechanisms, outer screen frame and bracing frame are connected in parallel by oscillation crosswise chain of the present utility model, auxiliary stopper chain, form the two translation two-degree-of-freedom parallel mechanisms that a structure is 2{-P ‖ R ‖ R ‖ R-}+2{-R ‖ R ‖ R-}, symbol P represents moving sets, symbol R represents revolute pair, and symbol ‖ represents axis being parallel; And between interior screen frame and screen bed base, form a revolute pair.Thus, the utility model can regard a structure as is that { hybrid mechanism of 2P ‖ R ‖ R ‖ R-2R ‖ R ‖ R-}-R, class of establishment can referred to as 2{PRRR-RRR}-R.2{PRRR-RRR}-R hybrid mechanism of the present utility model has two translations one and rotates totally three freedoms of motion, wherein two translational motions are respectively moving along sieve nest length direction and vertical direction, and one is rotated as around the rotation of trunnion axis being parallel to sieve nest length direction.
During use, the vibration parameters such as vibrational degrees of freedom, amplitude, screen angle and frequency required for material screening can be selected according to actual conditions.Adjusting bolt, mainly through the relative position in the U-lag of the loop bar outside of slide bar in adjusting angle locker, is then tightened by the adjustment of screen angle.The oscillation crosswise parameter of screen cloth regulates and is realized by horizontal exciting device, by regulating the rotating speed of horizontal drive motor can the frequency of oscillation crosswise of adjustable screen, by regulating the amplitude of the adjustable oscillation crosswise of eccentric throw of variable eccentric in left transversal driving mechanism, right transversal driving mechanism.Regulate the rotating speed of the vibrating motor of vertical exciting device and the angle of eccentric block, the amplitude of the vertical vibration of screen cloth and the adjustment of frequency can be realized.
The beneficial effects of the utility model are, compared with prior art, the vibration of three degree of freedom is altogether rotated in most two, the multipotency implementation space movement one of the utility model, and the amplitude of each direction of vibration, frequency and the parameter such as screen angle and vibrational degrees of freedom all can independently regulate, non-interference, the motion of all directions is full decoupled, can overcome the technological deficiency of existing vibratory sieve.Screen cloth is conducive to effective layering, the thoroughly sieve of material along the vibration of its length direction and vertical direction and carries; screen cloth is more conducive to material in the dispersion of compass screen surface, layering around the rotation of the trunnion axis being parallel to its length direction, makes compass screen surface material particles obtain the chance of more contact screen clothes.The vibration that Three Degree Of Freedom is rotated in screen cloth two translation one can improve the screening efficiency of material and the treating capacity of unit interval greatly, be conducive to reducing the volume of screening plant under the condition that treating capacity is stable, also have that compact conformation, working stability are reliable, equipment cost and operation low in energy consumption and control the advantages such as simple.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of horizontal exciting device of the present utility model;
Fig. 3 is the structural representation of right transversal driving mechanism of the present utility model and oscillation crosswise chain;
Fig. 4 is the general structure schematic diagram of sieve nest of the present utility model;
Fig. 5 is outer screen frame of the present utility model, assembly relation schematic diagram between interior screen frame and screen bed base;
Fig. 6 is the structural representation of revolution exciting device of the present utility model;
Fig. 7 is the structural representation of angle locker of the present utility model;
Fig. 8 is the structural representation of the outer loop bar of angle locker of the present utility model;
Fig. 9 is the structural representation of auxiliary stopper chain of the present utility model.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment and diagram, setting forth the utility model further.
As shown in Figure 1, Figure 2 and Figure 3, Three-freedom-degree hybrid vibrating screen is rotated in a kind of two translations one, comprises bracing frame 1, horizontal exciting device 2, sieve nest 3, revolution exciting device 4, vertical exciting device 5, auxiliary stopper chain 6, spring 7, lifting bolt 8 and hopper 9.Wherein, described bracing frame 1 comprises lower supporter 11, ceiling hold 12, and described ceiling hold 12 is positioned at the top of lower supporter 11 and is connected mutually by screw with lower supporter 11.Three sides of lower supporter 11 are provided with the hopper frame 111 for body feed tank under support screen, main strutbeam 121 and auxiliary strutbeam 122 is provided with at the top of ceiling hold 12, be provided with square connecting plate 123 in the bottom of ceiling hold 12, square connecting plate 123 is provided with two slide block bearings 124 be arranged symmetrically with; Described horizontal exciting device 2 produces X to of reciprocating vibration for making sieve nest 3, and be fixedly mounted on the square connecting plate 123 of ceiling hold 12 bottom it, its top is connected by screw with sieve nest 3; Described lifting bolt 8 is arranged on the main strutbeam 121 of ceiling hold 12, and the upper end of described spring 7 is hooked on the suspension ring of lifting bolt 8 lower end, and the lower end of spring 7 is hooked on sieve nest 3; Described revolution exciting device 4 is arranged on the side, bottom of sieve nest 3, produces reciprocally swinging around X-axis for making sieve nest 3; Described vertical exciting device 5 is made up of two identical vibrating motors, and the axis of two vibrating motors is parallel to each other, and symmetry is arranged on the top of sieve nest 3, sieve nest 3 can be made to produce the of reciprocating vibration of Z-direction when two vibrating motor synchronous backwards rotate; Described auxiliary stopper chain 6 has two groups, for limiting the freedom of motion of sieve nest 3, strengthens the kinetic stability of sieve nest 3 simultaneously.The top of auxiliary stopper chain 6 is arranged on the auxiliary strutbeam 122 of ceiling hold 12, and the bottom of auxiliary stopper chain 6 is connected by screw with sieve nest 3; Described hopper 9 is fixedly mounted on ceiling hold 12.
As shown in Fig. 1, Fig. 4, Fig. 5 and Fig. 6, described sieve nest 3 comprises outer screen frame 31, interior screen frame 32, screen bed base 33, screen cloth 34, angle locker 35, tie-beam 36, brace summer 37 and hanger 38.Wherein, the front end of screen frame 31 is provided with the short mounting hole 311 of horizontal direction outside, and the rear end of screen frame 31 is provided with the long waist shaped hole 312 of vertical direction outside, described interior screen frame 32 is placed in outer screen frame 31, web beam 321 is provided with at the middle part of interior screen frame 32, four spring fixed seats be arranged symmetrically 322 are provided with in the left and right sides of interior screen frame 32, the front end of interior screen frame 32 is provided with prelocalization axle 323, and prelocalization axle 323 is connected by screw thread with interior screen frame 32, the rear end of interior screen frame 32 is provided with rear locating shaft 324, described prelocalization axle 323 is positioned at the short mounting hole 311 of outer screen frame 31 and is fixed on outer screen frame 31 by lock-screw, described rear locating shaft 324 is positioned at the long waist shaped hole 312 of outer screen frame 31 and is connected by angle locker 35 with outer screen frame 31, described screen bed base 33 is positioned at directly over screen frame 32, two vibration passing beams 331 are provided with in the side, bottom of screen bed base 33, shaft 332 is provided with at the middle part of screen bed base 33, and the two ends of described shaft 332 are connected by hinge with interior screen frame 32, one end of described vibration passing beam 331 is connected by the mode of welding mutually with shaft 332, and described screen bed base 33 dual-side is connected by four back-moving springs 39 with interior screen frame 32, described screen cloth 34 is arranged on screen bed base 33, described tie-beam 36 is positioned at the crown center position of outer screen frame 31, and for installing vertical exciting device 5 and auxiliary stopper chain 6, and described tie-beam 36 is connected by screw with outer screen frame 31, described brace summer 37 is positioned at the front top of outer screen frame 31, and is connected mutually by the mode of welding with outer screen frame 31, described hanger 38 is positioned at the end face of the both sides of outer screen frame 31 and is connected with outer screen frame 31.
As shown in Figure 1, Figure 2 and Figure 3, described horizontal exciting device 2 comprises horizontal drive motor 21, commutator 22, left transversal driving mechanism 23, right transversal driving mechanism 24, horizontal power transmission shaft 27 and oscillation crosswise chain 28.Wherein, described horizontal drive motor 21 is connected with commutator 22 by shaft coupling, for left transversal driving mechanism 23 and right transversal driving mechanism 24 provide oscillation crosswise power; Described oscillation crosswise chain 28 has two groups, and is arranged symmetrically on the square connecting plate 123 of ceiling hold 12; Output shaft on the left of described commutator 22 is connected with oscillation crosswise chain 28 by left transversal driving mechanism 23, and the output shaft on the right side of commutator 22 is connected with horizontal power transmission shaft 27 by Hooks coupling universal coupling 25; Described horizontal power transmission shaft 27 is arranged on square connecting plate 123 by two lateral shaft bearings 26, and the right-hand member of horizontal power transmission shaft 27 is connected with oscillation crosswise chain 28 by right transversal driving mechanism 24.
As shown in Figure 1, Figure 2 and Figure 3, described left transversal driving mechanism 23 is identical with right transversal driving mechanism 24 structure, and is arranged symmetrically on the square connecting plate 123 of ceiling hold 12.Described right transversal driving mechanism 24 comprises variable eccentric 241, drive link 242, slide block assembly 243 and Ω shape guide rail 244.Wherein, described variable eccentric 241 is arranged on the right-hand member of horizontal power transmission shaft 27, and be connected by flat key with horizontal power transmission shaft 27, slip hinge 2411 is provided with in the outside of variable eccentric 241, for regulating the eccentric throw of variable eccentric 241, and be connected by lock-screw between slip hinge 2411 with variable eccentric 241; One end of described drive link 242 is connected by slip hinge 2411 with variable eccentric 241, and its other end is connected by hinge with slide block assembly 243; Described slide block assembly 243 is connected by linear bearing with Ω shape guide rail 244, and described Ω shape guide rail 244 is fixedly mounted on the slide block bearing 124 bottom ceiling hold 12, is provided with anticollison block 2441 at the two ends of Ω shape guide rail 244.
As shown in Figure 1, Figure 2 and Figure 3, described oscillation crosswise chain 28 passes to outer screen frame 31 for the X left transversal driving mechanism 23 and right transversal driving mechanism 24 produced to linear vibration, comprises the first transverse link 281, second transverse link 282, the 3rd transverse link 283 and horizontal ear seat 284.Wherein, the bottom of the first described transverse link 281 is fixedly mounted on by screw on the slide block assembly 243 of left transversal driving mechanism 23 or right transversal driving mechanism 24, and the top of the first transverse link 281 is connected by the first lateral rotation pair 285 with the second transverse link 282; The second described transverse link 282 is connected by the second lateral rotation pair 286 with the 3rd transverse link 283; The 3rd described transverse link 283 is connected by the 3rd lateral rotation pair 287 with horizontal ear seat 284; Described horizontal ear seat 284 fixedly mounts outside on screen frame 31 by screw; The first described lateral rotation pair 285, second lateral rotation pair 286, the axis of the 3rd lateral rotation pair 287 are parallel to each other.Described oscillation crosswise chain 28 is a kind of serial mechanism of PRRR structure, article four, structure is identical and axis is parallel to each other oscillation crosswise chain 28 is arranged symmetrically with outside between screen frame 31 and bracing frame 1, not only increase rigidity and the structural strength of horizontal exciting device 2, also define the rotation around Y-axis and Z axis of outer screen frame 31.
As shown in Fig. 1 and Fig. 9, described auxiliary stopper chain 6 comprises ears base 61, check chain 62 and top connecting plate 63, and described ears base 61 fixedly mounts on the tie-beam 36 of screen frame 31 outside by screw; Described check chain 62 has two groups, and is arranged symmetrically between ears base 61 and top connecting plate 63; Described top connecting plate 63 is connected mutually with the auxiliary strutbeam 122 of ceiling hold 12.
As shown in Fig. 1 and Fig. 9, described check chain 62 comprises the first spacing connecting rod 621, second spacing connecting rod 622 and position-limiting ear seat 623.Wherein, the bottom of the described first spacing connecting rod 621 is connected by the first rotation-limited pair 624 with ears base 61, and the top of the first spacing connecting rod 621 is connected by the second rotation-limited pair 625 with the second spacing connecting rod 622; Described second spacing connecting rod 622 is connected by the 3rd rotation-limited pair 626 with position-limiting ear seat 623; Described position-limiting ear seat 623 is connected with top connecting plate 63 by screw; The first described rotation-limited pair 624, second rotation-limited pair 625, the axis of the 3rd rotation-limited pair 626 are parallel to each other.Described check chain 62 is serial mechanisms of a kind of RRR structure, article four, structure is identical and axis is parallel to each other check chain 62 is arranged symmetrically with between the ceiling hold 12 of screen frame 31 and bracing frame outside, define outer screen frame 31 around X-axis and the rotation of Z axis and the movement along Y direction, make outer screen frame 31 only have movement totally two freedoms of motion along X-axis, Z axis.In addition, four check chains 62 be arranged symmetrically with also contribute to the stability that improve sieve nest 3 motion.
As shown in Fig. 1, Fig. 5 and Fig. 6, described revolution exciting device 4 comprises revolution drive motors 41, exciting cam 42, cam drive axle 43.Wherein, described revolution drive motors 41 is fixedly mounted on the bottom surface of interior screen frame 32, and revolution drive motors 41 is connected by shaft coupling with cam drive axle 43, for exciting cam 42 provides the power of revolution exciting; Described cam drive axle 43 is arranged on the bottom surface of interior screen frame 32 by two gyroaxis bearings 44; Described exciting cam 42 has two, and is arranged symmetrically in the two ends of cam drive axle 43, and the outer edge surface of described exciting cam 42 remains with the vibration passing beam 331 bottom screen bed base 33 and contacts under the effect of back-moving spring 39.
As shown in Fig. 1, Fig. 4, Fig. 5, Fig. 7 and Fig. 8, described angle locker 35 comprises outer loop bar 351, interior slide bar 352 and adjusting bolt 353, for the position in the long waist shaped hole 312 of rear locating shaft 324 screen frame 31 outside that limits interior screen frame 32, and then the inclination angle of screen frame 32 in limiting.Wherein, one end of described outer loop bar 351 is connected by screw with the rear locating shaft 324 of interior screen frame 32, and its other end is provided with U-lag 3511; One end of described interior slide bar 352 is placed in the U-lag 3511 of outer loop bar 351, and is connected by adjusting bolt 353 with outer loop bar 351, and the other end of interior slide bar 352 is connected by hinge with outer screen frame 31.
From the angle of theory of mechanisms, outer screen frame 31 is connected in parallel with bracing frame 1 by oscillation crosswise chain 28 of the present utility model, auxiliary stopper chain 6, form a structure be 2{-P ‖ R ‖ R ‖ R-}+2{-R ‖ R ‖ R-} can along X to the two-degree-of-freedom parallel mechanism of, Z-direction translation, symbol P represents moving sets, symbol R represents revolute pair, and symbol ‖ represents axis being parallel; And form a revolute pair between interior screen frame 32 and screen bed base 33.Thus, the utility model can regard a structure as is that { hybrid mechanism of 2P ‖ R ‖ R ‖ R-2R ‖ R ‖ R-}-R, class of establishment can referred to as 2{PRRR-RRR}-R.2{PRRR-RRR}-R hybrid mechanism of the present utility model has two translations one and rotates totally three freedoms of motion, and wherein two translational motions are respectively moving along X to, Z-direction, and one is rotated as the rotation around X-axis.
During use, the vibration parameters such as vibrational degrees of freedom, amplitude, screen angle and frequency required for material screening can be selected according to actual conditions.Adjusting bolt 353, mainly through the relative position in the U-lag 3511 of the loop bar 351 outside of slide bar 352 in adjusting angle locker 35, is then tightened by the adjustment of screen angle.The X of screen cloth 34 regulates to vibration parameters and is realized by horizontal exciting device 2, by regulate horizontal drive motor 21 rotating speed can adjustable screen 34 X to vibration frequency, by regulate the adjustable X of eccentric throw of variable eccentric 241 in left transversal driving mechanism 23, right transversal driving mechanism 24 to vibration amplitude.Regulate the rotating speed of vibrating motor and the angle of eccentric block of vertical exciting device 5, the amplitude of Z vertical vibration and the adjustment of frequency of screen cloth 34 can be realized.
More than show and describe general principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. Three-freedom-degree hybrid vibrating screen is rotated in a translation one, comprise bracing frame, sieve nest, spring, lifting bolt, hopper, it is characterized in that: also comprise horizontal exciting device, revolution exciting device, vertical exciting device and auxiliary stopper chain, described bracing frame comprises lower supporter, ceiling hold, described ceiling hold is positioned at the top of lower supporter and is connected mutually by screw with lower supporter, lower supporter is provided with hopper frame, main strutbeam and auxiliary strutbeam is provided with at the top of ceiling hold, square connecting plate is provided with in the bottom of ceiling hold, square connecting plate is provided with two slide block bearings be arranged symmetrically with, the bottom of described horizontal exciting device is fixedly mounted on the square connecting plate of ceiling hold, and its top is connected by screw with sieve nest, described lifting bolt is arranged on the main strutbeam of ceiling hold, and the upper end of described spring is hooked on the suspension ring of lifting bolt lower end, and the lower end of spring is hooked on sieve nest, described revolution exciting device is arranged on the side, bottom of sieve nest, described vertical exciting device is arranged on the top of sieve nest, and the vibrating motor be parallel to each other by two axis forms, described auxiliary stopper chain has two groups, and its top is arranged on the auxiliary strutbeam of ceiling hold, is connected bottom it with sieve nest by screw, described hopper is fixedly mounted on ceiling hold,
Described sieve nest comprises outer screen frame, interior screen frame, screen bed base, screen cloth, angle locker, tie-beam, brace summer and hanger, the short mounting hole of horizontal direction is provided with in the front end of described outer screen frame, the rear end of screen frame is provided with the long waist shaped hole of vertical direction outside, and the centre position at screen frame top and front end are respectively equipped with tie-beam and brace summer outside; Described interior screen frame is placed in outer screen frame, web beam is provided with at the middle part of interior screen frame, four spring fixed seats be arranged symmetrically are provided with in the left and right sides of interior screen frame, the rear and front end of interior screen frame is respectively equipped with prelocalization axle and rear locating shaft, described prelocalization axle is positioned at the short mounting hole of outer screen frame and is fixed on outer screen frame by lock-screw, and described rear locating shaft is positioned at the long waist shaped hole of outer screen frame and is connected by angle locker with outer screen frame; Described screen bed base is positioned at directly over screen frame, two vibration passing beams are provided with in the side, bottom of screen bed base, shaft is provided with at the middle part of screen bed base, and the two ends of described shaft are connected by hinge with interior screen frame, described screen bed base dual-side is connected by four back-moving springs with interior screen frame; Described screen cloth is arranged on screen bed base; Described hanger is positioned at the end face of the both sides of outer screen frame and is connected with outer screen frame;
Described horizontal exciting device comprises horizontal drive motor, commutator, left transversal driving mechanism, right transversal driving mechanism, horizontal power transmission shaft and oscillation crosswise chain, and described horizontal drive motor is connected with commutator by shaft coupling; Described oscillation crosswise chain has two groups, and is arranged symmetrically on the square connecting plate of ceiling hold; Output shaft on the left of described commutator is connected with oscillation crosswise chain by left transversal driving mechanism, and the output shaft on the right side of commutator is connected with horizontal power transmission shaft by Hooks coupling universal coupling; Described horizontal power transmission shaft is arranged on square connecting plate by two lateral shaft bearings, and the right-hand member of horizontal power transmission shaft is connected with oscillation crosswise chain by right transversal driving mechanism;
Described left transversal driving mechanism is identical with right transversal driving mechanism structure, and be arranged symmetrically on the square connecting plate of ceiling hold, described right transversal driving mechanism comprises variable eccentric, drive link, slide block assembly and Ω shape guide rail, described variable eccentric is arranged on the right-hand member of horizontal power transmission shaft, and be connected by flat key with horizontal power transmission shaft, be provided with slip hinge in the outside of variable eccentric, and slip hinge is connected by lock-screw with between variable eccentric; One end of described drive link is connected by slip hinge with variable eccentric, and its other end is connected by hinge with slide block assembly; Described slide block assembly is connected by linear bearing with Ω shape guide rail, and described Ω shape guide rail is fixedly mounted on the slide block bearing bottom ceiling hold, is provided with anticollison block at the two ends of Ω shape guide rail;
Described oscillation crosswise chain comprises the first transverse link, the second transverse link, the 3rd transverse link and horizontal ear seat, the bottom of the first described transverse link is fixedly mounted on by screw on the slide block assembly of left transversal driving mechanism or right transversal driving mechanism, and the top of the first transverse link is connected by the first lateral rotation parafacies with the second transverse link; The second described transverse link is connected by the second lateral rotation parafacies with the 3rd transverse link; The 3rd described transverse link is connected by the 3rd lateral rotation parafacies with horizontal ear seat; Described horizontal ear seat fixedly mounts outside on screen frame by screw; The first described lateral rotation is secondary, the second lateral rotation is secondary, axis that is the 3rd lateral rotation pair is parallel to each other;
Described auxiliary stopper chain comprises ears base, check chain and top connecting plate, and described ears base through screws fixedly mounts on the tie-beam of screen frame outside; Described check chain has two groups, and is arranged symmetrically between ears base and top connecting plate; Described top connecting plate is connected mutually with the auxiliary strutbeam of ceiling hold;
Described check chain comprises the first spacing connecting rod, the second spacing connecting rod and position-limiting ear seat, the bottom of the described first spacing connecting rod is connected by the first rotation-limited parafacies with ears base, and the top of the first spacing connecting rod is connected by the second rotation-limited parafacies with the second spacing connecting rod; Described second spacing connecting rod is connected by the 3rd rotation-limited parafacies with position-limiting ear seat; Described position-limiting ear seat is connected with top connecting plate by screw; The first described rotation-limited is secondary, the second rotation-limited is secondary, axis that is the 3rd rotation-limited pair is parallel to each other.
2. Three-freedom-degree hybrid vibrating screen is rotated in a kind of two translations one according to claim 1, it is characterized in that: described revolution exciting device comprises revolution drive motors, exciting cam, cam drive axle, described revolution drive motors is fixedly mounted on the bottom surface of interior screen frame, and revolution drive motors is connected by shaft coupling with cam drive axle; Described cam drive axle is arranged on the bottom surface of interior screen frame by two gyroaxis bearings; Described exciting cam has two, and is arranged symmetrically in the two ends of cam drive axle, and the vibration passing beam bottom the outer edge surface of described exciting cam and screen bed base keeps in touch.
3. Three-freedom-degree hybrid vibrating screen is rotated in a kind of two translations one according to claim 1, it is characterized in that: described angle locker comprises outer loop bar, interior slide bar and adjusting bolt, one end of described outer loop bar is connected by screw with the rear locating shaft of interior screen frame, and its other end is provided with U-lag; One end of described interior slide bar is placed in the U-lag of outer loop bar, and is connected by adjusting bolt with outer loop bar, and the other end of interior slide bar is connected by hinge with outer screen frame.
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| CN201520203898.2U CN204503562U (en) | 2015-04-07 | 2015-04-07 | Three-freedom-degree hybrid vibrating screen is rotated in two translations one |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520203898.2U CN204503562U (en) | 2015-04-07 | 2015-04-07 | Three-freedom-degree hybrid vibrating screen is rotated in two translations one |
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| CN204503562U true CN204503562U (en) | 2015-07-29 |
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| CN104722482A (en) * | 2015-04-07 | 2015-06-24 | 安徽理工大学 | Two-horizontal-movement one-rotation three-freedom-degree series-parallel vibrating screen |
| CN105157944A (en) * | 2015-09-30 | 2015-12-16 | 扬中中科维康智能科技有限公司 | Three-translation one-rotation multi-dimensional vibration platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104722482A (en) * | 2015-04-07 | 2015-06-24 | 安徽理工大学 | Two-horizontal-movement one-rotation three-freedom-degree series-parallel vibrating screen |
| CN104722482B (en) * | 2015-04-07 | 2016-06-15 | 安徽理工大学 | Two translation one rotation three degree of freedom series-parallel connection vibratory screening apparatuss |
| CN105157944A (en) * | 2015-09-30 | 2015-12-16 | 扬中中科维康智能科技有限公司 | Three-translation one-rotation multi-dimensional vibration platform |
| CN106703754A (en) * | 2016-11-19 | 2017-05-24 | 佛山市原创动力科技有限公司 | Oil-gas well drilling blowout device with energy conservation and emission reduction functions |
| CN108499849A (en) * | 2018-07-03 | 2018-09-07 | 金陵科技学院 | A kind of novel vibrating bounce screen |
| CN108499849B (en) * | 2018-07-03 | 2023-04-07 | 金陵科技学院 | Novel vibration bouncing screen |
| CN109225809A (en) * | 2018-08-15 | 2019-01-18 | 江苏大学 | A kind of maggot material separation multi-dimensional vibration sieve with charging/discharging device |
| CN109225809B (en) * | 2018-08-15 | 2021-08-03 | 江苏大学 | Maggot and material separation multidimensional vibration sieve with feeding and discharging device |
| WO2020191786A1 (en) * | 2019-03-22 | 2020-10-01 | 江苏大学 | Three-degree-of-freedom hybrid vibration screening mechanism and control method therefor, and harvester |
| US11285513B2 (en) | 2019-03-22 | 2022-03-29 | Jiangsu University | Three-degree-of-freedom hybrid vibratory screening mechanism, control method thereof, and harvester |
| CN114523114A (en) * | 2022-02-18 | 2022-05-24 | 杭州智华杰科技有限公司 | Preparation method and device of 4D printing material |
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