A kind of totally-enclosed circular vibration flip flop screen of modularization
Technical field
The present invention relates to one kind vibrate flip flop screen, and in particular to a kind of utilization modularization rubber shear spring and compass screen surface it is complete
Circular vibration flip flop screen is closed, the dry deep-sizing of material under different working conditions is applicable to.
Background technology
Vibratory sieve is a kind of very important screening plant, is widely used in mine, metallurgy, chemical industry, builds, builds the road and ring
Defend etc. in industry, be mainly used in screening, classification, washing, de-mediated and dehydration of material etc..Dry method depth sieve is carried out to moist material
Timesharing, due to the effect of the surface tension of water, fine is easily reunited and occurs hardened, adhesion compass screen surface, is blocked sieve aperture, is caused
Screening efficiency declines, and influences screening effect.
Vibration flip flop screen is a kind of novel vibrating screen for handling wetted coal fines, passes through the reciprocal of main sieve nest and floating screen frame
Motion, realizes the periodic tension and relaxation motion of elastic screen surface.Compared to common vibratory sieve, it is strong that flip flop screen can obtain higher throwing
Degree and bigger sieve aperture deflection, prevent material sticks and sieve pore blockade.
The design and use of current vibratory sieve, mostly just for single working condition, do not account for the situation of multi-state.
When the treating capacity of material changes, it is necessary to adjust the amplitude of vibratory sieve to keep good screening effect.Currently for shaking
Width regulation problem, mainly there is regulation shock electric machine frequency, regulation mass of vibration and regulation three kinds of main methods of spring rate.Regulation
There is problems with this method of shock electric machine frequency:Vibratory sieve needs to configure powerful frequency converter, increases equipment cost;Become
The operation of frequency device needs relevant professional knowledge, too high to workman's technical requirements;Variable frequency speed-increasing can make motor be in overload, long
Phase speedup can reduce electrical machinery life, influence motor performance.Mass of vibration is adjusted, that is, adjusts the treating capacity of material, is shaken to increase
Width, then need to reduce treating capacity, this can increase the working time, reduce production efficiency.When particle composition changes, it is necessary to more
The compass screen surface of different percent openings is changed to ensure good screening effect.Compass screen surface mounting means main at present is fixed for clip, this
Compass screen surface is stuck among neck by fixed form by clip, is needed to fix clip and compass screen surface compacting when changing compass screen surface, is changed journey
The cumbersome trouble of sequence, and and it is insecure, be likely to result in compass screen surface and be thrown out of neck.
Number of patent application discloses a kind of indeterminate modularization girder adjustable amplitude low-frequency vibration for 201610817262.6
Flip flop screen, the amplitude of floating frame is changed by changing the rigidity of metal spring before and after floating screen frame.But the installation of metal spring
Dismounting trouble, and metal spring adjustable range is limited.Compass screen surface is fixed by buckle with neck, and compass screen surface edge is zigzag, plus
Work complex process, cost increase, and if sawtooth is damaged, will be unable to fix with neck.
The content of the invention
Technical problem:The purpose of the present invention is that there is provided a kind of module for amplitude regulation problem present in prior art
Change totally-enclosed circular vibration flip flop screen, the vibratory sieve according to different working conditions, can select the rubber shearing bullet of different-stiffness
The compass screen surface of spring and different percent openings, with the purpose for the amplitude for reaching regulation floating screen frame, it is ensured that good screening effect, operation letter
Single, adjustable range is big, and technical threshold is low, adaptability and highly reliable.
Technical scheme:The totally-enclosed circular vibration flip flop screen of modularization of the present invention, including main sieve nest, elastic screen surface, floating sieve
Frame, frame, rubber shear spring, cylindrical rubber spring, spring support seat, vibrator and protective cover;It is characterized in that:Described
Spring support seat is arranged on main sieve nest, the tilt adjustable of main sieve nest;Main sieve nest passes through cylindrical rubber spring and frame phase
Even, frame is fixed on the ground by foundation bolt;The floating screen frame is connected by multigroup rubber shear spring with main sieve nest,
Multigroup rubber shear spring is bolted to be fixed with floating screen frame and main sieve nest respectively;Can be by changing different-stiffness
Rubber shear spring can change the working amplitude of floating screen frame, to adapt to different operating modes;The vibrator distinguishes cloth in pairs
Put on the left side plate of floating screen frame, produce vibrational excitation, realize circular vibration;Described elastic screen surface is by multiple Rectangular Elastics
Sieve plate is constituted, and described protective cover covers whole vibratory sieve, forms full-closed structure.
Described main sieve nest include left plate, right side version, discharging opening guide plate, connection left side plate many fixed cross beams,
Rear baffle and Duo Gen reinforced pipe beams;Many described fixed cross beams are spaced positioned at the bottom of main sieve nest, many reinforced pipe beams
It is spaced positioned at the top of main sieve nest, many fixed cross beams and reinforced pipe beam are bolted and be fixed on left side plate,
Described discharging opening guide plate and rear baffle are bolted the front and rear sides for being fixed on left side plate.
Described elastic screen surface is made up of multiple rectangle sieve plates, and described rectangle sieve plate two ends are fixed on by fixing bolt
On neck, described neck is welded on floating screen frame.
Described floating screen frame includes curb girder and floating crossbeam;The two ends of floating crossbeam are connected by flange with curb girder, structure
Into frame structure;Main sieve nest side plate lower disposed is jagged, and the floating crossbeam of floating screen frame is through breach and under main sieve nest
The fixed cross beam in portion alternates arrangement, and floating crossbeam is in same level with fixed cross beam, multiple Rectangular Elastic sieve plates
Two ends be separately fixed at by bolt in the neck on fixed cross beam and floating crossbeam.
Spacing between many described fixed cross beams is 500mm;Spacing between floating crossbeam is 500mm, fixed horizontal
Spacing between beam and floating crossbeam is 250mm.
Described rubber shear spring includes block rubber and is located at the junction steel plate of block rubber both ends of the surface;Keep junction steel plate
It is constant, change the size of block rubber, and then change the rigidity of rubber shear spring, realize the rubber shearing bullet of different-stiffness requirement
The replacing of spring.
Beneficial effect:By adopting the above-described technical solution, the present invention has the following advantages that compared with prior art:
(1) rubber shear spring uses modularized design, and junction steel plate keeps constant, only changes the big of intermediate rubber block
It is small, the rubber shear spring of different-stiffness can be obtained.Rubber shear spring is bolted with main sieve nest and floating screen frame,
It is easily installed and dismantles.According to the difference of field working conditions condition, the rubber shear spring of different-stiffness can be changed, is realized to floating
The regulation of dynamic screen frame amplitude, it is simple to operate, live it can change, applicability is good, and amplitude adjustable range is big.
(2) elastic screen surface uses modularized design, changes the percent opening of wherein rectangle sieve plate, opening shape and sieve plate are long
Degree.The two ends of elastic screen surface utilize and are bolted on the neck on fixed cross beam and floating crossbeam, convenient disassembly, it is easy to change
And maintenance, can be according to technological requirement from different percent openings and the sieve plate of opening shape, to improve screening efficiency.Bolt fixes ratio
Clip fixes more firm, and compass screen surface can be prevented during vibration, to be thrown out of neck., can from the sieve plate of different length
To change the degree of crook of compass screen surface, so as to realize the regulation to compass screen surface relaxation tensor sum floating screen frame amplitude, flexibility is stronger.
(3) whole main sieve nest makes one enclosed construction of whole vibratory sieve formation covered with protective cover.Material is being dried
During screening operation, dust cover can play dust-proof effect, while can prevent that particle from dishing out vibratory sieve, ensure the health of workman
And safety.In outdoor work, protective cover windproof can also keep off the rain, and extend the service life of vibratory sieve.Waterproof awning cloth price is low
It is honest and clean, it can change at any time at the scene, it is simple to operate.
(4) floating screen frame uses more compact design, from smaller floating crossbeam spacing.The sieve of same length is long,
Floating crossbeam quantity increase in floating screen frame, floating screen frame quality increase, inertia is bigger.When treating capacity changes, to floating
The amplitude influence of dynamic screen frame is smaller, runs more steady.
Brief description of the drawings
Fig. 1 is the vibration screen axis geodesic structure figure (being free of protective cover) of the present invention;
Fig. 2 is the vibration screen axis geodesic structure figure (containing protective cover) of the present invention;
Fig. 3 is the main sieve nest axle geodesic structure figure of the present invention;
Fig. 4 is the compass screen surface fixed form of the present invention;
Fig. 5 is the floating screen frame axonometric drawing of the present invention;
Fig. 6 is the rubber shear spring axonometric drawing of the present invention.
In figure:1 main sieve nest;2 elastic screen surfaces;3 floating screen frames;4 frames;5 rubber shear springs;6 cylindrical rubber springs;7
Spring support seat;8 vibrators;9 protective covers;Side plate on the left of 1-1;1-2 discharging opening guide plates;1-3 fixed cross beams;Side plate on the right side of 1-4;
1-5 rear baffles;1-6 reinforced pipe beams;2-1 fixing bolts;2-2 rectangle sieve plates;2-3 necks;3-1 curb girders;3-2 floating crossbeams;5-1
Block rubber;5-2 junction steel plates.
Embodiment
One embodiment of the present of invention is further described below in conjunction with the accompanying drawings:
As depicted in figs. 1 and 2, the totally-enclosed circular vibration flip flop screen of modularization of the invention, is mainly sieved by main sieve nest 1, elasticity
Face 2, floating screen frame 3, frame 4, rubber shear spring 5, cylindrical rubber spring 6, spring support seat 7, vibrator 8 and protective cover 9
Constitute;Described spring support seat 7 is arranged on main sieve nest 1, the tilt adjustable of main sieve nest 1;Main sieve nest 1 passes through cylinder rubber
Glue spring 6 is connected with frame 4, and described cylindrical rubber spring 6 is designed according to specific working condition requirement to be processed, and frame 4 passes through lower margin
It is bolted on ground;The floating screen frame 3 is connected by multigroup rubber shear spring 5 with main sieve nest 1, multigroup rubber
Shear spring 5 is fixed with floating screen frame 3 and main sieve nest 1 respectively by slide bolt connection;By the rubber for changing different-stiffness
Shear spring 5 can change the working amplitude of floating screen frame 3, to adapt to different operating modes;Two vibrators 8 are separately mounted to left and right
On biside plate 3, vibrational excitation is produced, circular vibration is realized;Described elastic screen surface 2 is made up of multiple Rectangular Elastic sieve plates, described
Protective cover 9 cover whole vibratory sieve, form full-closed structure.
As shown in figure 3, described main sieve nest 1 includes left plate 1-1, right side version 1-4, discharging opening guide plate 1-2, connection left and right
Many fixed cross beam 1-3, the rear baffle 1-5 and Duo Gen reinforced pipe beam 1-6 of side plate;Described many fixed cross beam 1-3 intervals row
Row are spaced positioned at the top of main sieve nest 1, many fixed cross beam 1-3 positioned at the bottom of main sieve nest 1, many reinforced pipe beam 1-6
It is bolted and is fixed on left side plate with reinforced pipe beam 1-6, the spacing between fixed cross beam is 500mm;Described goes out
Material mouth guide plate 1-2 and rear baffle 1-5 are bolted the front and rear sides for being fixed on left side plate.
As shown in figure 4, described elastic screen surface 2 is made up of multiple rectangle sieve plate 2-2, described rectangle sieve plate 2-2 two ends
It is fixed on by fixing bolt 2-1 on neck 2-3, described neck 2-3 is welded on floating screen frame 3.
Shown in Fig. 5, described floating screen frame 3 includes curb girder 3-1 and floating crossbeam 3-2;Floating crossbeam 3-2 two ends pass through
Flange is connected with curb girder 3-1, constitutes frame structure;The main side plate lower disposed of sieve nest 1 is jagged, the floating crossbeam 3- of floating screen frame
2 alternate arrangement, floating crossbeam 3-2 and fixed cross beam 1-3 through breach with the fixed cross beam 1-3 positioned at the main bottom of sieve nest 1
In same level, the spacing between many described fixed cross beam 1-3 is 500mm;Fixed cross beam and floating crossbeam it
Between spacing be 250mm.The two ends of multiple Rectangular Elastic sieve plates are separately fixed at fixed cross beam 1-3 and floating crossbeam by bolt
In neck on 3-2.
As shown in fig. 6, described rubber shear spring 5 includes block rubber 5-1 and is located at the connection of block rubber 5-1 both ends of the surface
Steel plate 5-2;Keep junction steel plate 5-2 constant, change block rubber 5-1 size, and then the rigidity of change rubber shear spring 5,
Realize the replacing of the rubber shear spring 5 of different-stiffness requirement.
When vibratory sieve works, motor drives vibrator 8 to rotate and produces reciprocal exciting force, make vibratory sieve by yielding coupling
Main sieve nest 1 make approximately round reciprocating motion relative to ground, floating screen frame 3 is relative with the reciprocally swinging of rubber shear spring 5
Make periodic relative motion in main sieve nest 1, the fixed cross beam 1-3 of main sieve nest 1 and the floating crossbeam 3-2 of screen frame 3 are periodic
It is close-remote, so as to drive the periodic tensioning-relaxation of the elastic screen surface 2 being mounted above, realize that tension and relaxation is moved.Change not
With the rubber shear spring 5 of rigidity, the tension and relaxation amount of elastic screen surface 2 can be changed, so as to reach the amplitude of regulation floating screen frame 3.More
Change the elastic screen surface 2 of different percent openings, it is ensured that higher screening efficiency.