Circular shale shaker
Technical field
It the utility model is related to a kind of mining screening plant, more particularly to a kind of circular shale shaker.
Background technology
Circular shale shaker is because of the approximate circle of its movement locus, so referred to as circular shale shaker.Circular shale shaker is mainly by screen box, exciting
Device, support meanss and motor etc. are formed, and motor is provided with partially in vibrator by the main axis of belt drive vibrator
Heart block, eccentric block statement centrifugal force, excites screen box to produce the circular motion of certain amplitude during operating, and material is transported on sieve by throwing
Move and obtain sieving and grading.
However, while vibrator produces vibration to screen box, vibrator itself also produces larger anti-vibration, and then makes company
Vibration can be produced by connecing the belt pulley, belt and motor of vibrator, can particularly be caused stretching repeatedly for belt, be made skin
Band, vibrator and motor etc. are easily damaged, and can only need to use less amplitude when in use to reduce device damage, but compared with
The screening efficiency of the circular shale shaker of small amplitude is relatively low.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of bigger and less device damage circular shale shaker of amplitude.
In order to solve the above-mentioned technical problem, circular shale shaker of the present utility model, including screen box, support spring, pedestal, electricity
Machine, vibrator, driven pulley, belt and belt stretcher;Described screen box one end tilts down setting;The screen box passes through
The support spring is supported on the pedestal;The motor is arranged on the pedestal, and the machine shaft is connected with actively
Belt pulley;The vibrator is movably connected on the screen box;The driven pulley is fixedly connected on the vibrator;The skin
Band is installed on the drive pulley, driven pulley and belt stretcher;The belt stretcher includes tightening belt
Wheel, belt pulley seat, back-moving spring, backing plate at bottom and fixing bolt;The idler is pressed in downwards under the belt
Section, the lower segment length of the belt are more than the upper segment length of the belt;The belt pulley seat is arranged at the idler
Bottom is simultaneously flexibly connected by wheel shaft with idler;The back-moving spring top is fixedly connected on the belt pulley seat bottom
Portion, the back-moving spring bottom are fixedly connected on the backing plate at bottom upper face, the back-moving spring along Belt Length direction simultaneously
Row is provided with two;The backing plate at bottom is laminated on the pedestal and is provided with multilayer, and the backing plate at bottom center is provided with spiral shell
Bolt throughhole, the pedestal correspond to the bolt hole and are provided with screwed hole;The fixing bolt is located at described two back-moving springs
Between, the fixing bolt is passed down through the bolt hole in each layer backing plate at bottom center and is threadedly connected to the pedestal
Screwed hole.
The belt pulley seat includes two pieces of triangular plates and a block length cube plate;The triangular plate is parallel to each other and hung down
The direct-connected upper face center for being connected to the cuboid plate, the triangular plate top connects the wheel shaft of the idler;Institute
Cuboid plate bottom both ends are stated to be fixedly connected with described two back-moving spring tops respectively.
The vibrator includes main shaft, fixed mount, gets rid of block, pull bar and adjustable spring;The vertical fixed plate of the fixed mount bag,
Horizontal backing plate, central cannulation and bearing pin;Vertically it is fixedly connected by the central cannulation between the vertical fixed plate;It is described perpendicular
One sidepiece of straight fixed plate is vertical with the horizontal backing plate to be fixedly connected;Relative the other side center of the vertical fixed plate
It is connected with two symmetrical bearing pins;The horizontal backing plate both ends are respectively arranged with movable span;The block that gets rid of has symmetrically
Two and be movably connected on the fixed mount;The block that gets rid of includes connecting plate, counterweight and locking bolt respectively;Each connecting plate
There are two pieces to be parallel to each other;One end of the connecting plate is flexibly connected the bearing pin of corresponding side, the connecting plate it is another
End connects the counterweight;The locking bolt is vertically connected at the connecting plate towards between the sidepiece of the horizontal backing plate side;Institute
State pull bar have symmetrical two and it is corresponding described in get rid of block and be flexibly connected the fixed mount;Described pull bar one end is movably connected on correspondingly
The locking bolt for getting rid of block of side, the pull bar other end pass through the movable span of the corresponding end of the horizontal backing plate and are provided with outer spiral shell
Line and it is threaded with pull-rod nut;The adjustable spring has two and is correspondingly socketed on outside described two pull bars, described flexible
Spring is respectively arranged with pad between the horizontal backing plate and pull-rod nut between the pull-rod nut and adjustable spring.
The end that can mutually draw close of described two counterweights for getting rid of block is respectively arranged with internal thread hole, in the internal thread hole
It is threaded with regulating bolt respectively, the head of the regulating bolt is magnet, the pole of the magnet on the two regulating bolts head
Property is opposite.
The magnet outer wall is provided with iron-clad, and the iron-clad is connected with the magnet outer wall close adhesion.
Drawing close for the counterweight for getting rid of block is respectively arranged with magnet, the horizontal backing plate in the end of the horizontal backing plate
Both ends are correspondingly arranged on magnet, and the magnet of the horizontal backing plate end is identical with the magnet polarities of the corresponding end of the counterweight.
The connecting plate for getting rid of block is modification of right-angled triangle plate, and the locking bolt is arranged at the hypotenuse of the modification of right-angled triangle plate
Portion, the counterweight are fixedly connected on the right angle edge of the modification of right-angled triangle plate.
The vibrator is additionally provided with disc shell, fixed mount, gets rid of block, pull bar and adjustable spring and may be contained within the circle
In disc-shaped housings inner chamber, the disc housing center is fixedly connected with the main shaft.
The utility model has the advantages that:
1st, the belt between drive pulley and driven pulley is provided with belt stretcher, can filter vibrator biography
Vibration and the pulling force of motor are led, the vibration damage to motor and the rigid fail in tension to belt are avoided, so that vibratory sieve
Bigger amplitude can be used, and the damage to equipment is less.
2nd, the belt pulley seat bottom of belt stretcher only connecting spring so that belt stretcher has bigger pendulum
It is dynamic free, avoid belt stretcher from tilting damage because the friction of belt drives.And belt pulley seat bottom is along Belt Length side
Two springs are connected with to supported side by side, wallowing motion amplitude of the belt stretcher along belt friction force direction can be reduced,
Belt stretcher is avoided to be damaged because of transitional slope.
3rd, the belt pulley seat bottom of belt stretcher uses cuboid plate, and cuboid plate bottom both ends connect bullet respectively
Spring, cuboid plate add rotation stop torque of the spring to belt pulley seat, reduce further belt stretcher along belt friction
The wallowing motion amplitude of force direction, reduce wheeled base and the damage of spring junction.
4th, block is got rid of in vibrator and is connected with spring, eccentric throw and amplitude can be automatically adjusted with rotating speed, reduced when stopping machine
Oscillation Amplitude, reduce the damage to equipment, so be easy to circular shale shaker use more large amplitude.
5th, getting rid of in vibrator draws close end between block and is respectively arranged with regulating bolt, is grown by the stretching for adjusting regulating bolt
Degree, so as to the peak swing of manual adjusting vibration exciter, circular shale shaker is set to use bigger amplitude.
6th, the head of regulating bolt is magnet, and when getting rid of block and mutually drawing close, can be attracted each other connection by magnet, is reduced
The frequent impact between block is got rid of, the damaged in collision for getting rid of block is reduced, reduces the damage of vibrator.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of vibrator in Fig. 1
In figure:1- screen boxs, 2- stand legs, 3- support springs, 4- pedestals, 5- motors, 6- belts, 7- driven pulleies, 8- swash
Shaken device, 9- idlers, 10- belt pulley seats, 11- fixing bolts, 12- back-moving springs, 13- backing plate at bottom, and 801- is laterally padded
Plate, the vertical fixed plates of 802-, 803- main shafts, the pull bars of 811- first, the springs of 812- first, the magnet of 813- the 5th, the magnetic of 814- the 3rd
Iron, 815- first get rid of block, the regulating bolts of 816- first, the magnet of 817- first, the locking bolts of 818- first, the bearing pins of 819- first, 821-
Second pull bar, 822- second springs, the magnet of 823- the 6th, the magnet of 824- the 4th, 825- second get rid of block, and 826- second adjusts spiral shell
Bolt, the magnet of 827- second, the locking bolts of 828- second, the bearing pins of 829- second.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description:
As shown in figure 1, circular shale shaker of the present utility model, including screen box, stand leg, support spring, pedestal, motor, exciting
Device, driven pulley, belt and belt stretcher.
Screen box one end tilts down setting.Stand leg is respectively fixedly connected with screen box side sidepiece both ends and opposite side sidepiece two
End.Support spring is supported in stand leg bottom and is fixedly connected with stand leg, and corresponding each stand leg is provided with two side by side.Pedestal branch
Support in support spring bottom and be fixedly connected with spring.Motor is arranged on pedestal and is fixedly connected with pedestal, machine shaft court
To screen box side wall and it is fixedly connected with drive pulley.Vibrator is movably connected on screen box by bearing.Driven pulley is fixed
It is connected to the main shaft of vibrator.Belt is installed on the idler of drive pulley, driven pulley and belt stretcher,
Belt both ends bypass drive pulley and driven pulley respectively, and belt center bypasses the idler bottom of tensioning apparatus
Portion.After powering, motor driving drive pulley, drive pulley pass through belt drive driven pulley, follower belt wheel belt
Dynamic vibrator rotates, and vibrator, which produces, vibrates and be delivered to screen box, and screen box carries out vibrosieve to material.Belt stretcher is not
The elasticity of adjust automatically belt is can be only used for, and the vibration that motor is delivered to from vibrator can be filtered, is reduced to skin
Band hardness stretching, and then reduce motor vibration damage, reduce the fail in tension of belt, so allow vibrator use compared with
Large amplitude.
Belt stretcher includes idler, belt pulley seat, back-moving spring, backing plate at bottom and fixing bolt.Tensioning
Belt pulley is pressed in downwards the hypomere of belt, and the lower segment length of belt is more than the upper segment length of belt so that drive pulley with
Spacing between driven pulley can not only shorten but also extending.Belt pulley seat is arranged at idler bottom and passes through wheel
Axle is flexibly connected with idler.Back-moving spring top is fixedly connected on belt pulley seat bottom, and back-moving spring bottom, which is fixed, to be connected
Backing plate at bottom upper face is connected to, back-moving spring has been arranged side by side two along Belt Length direction.Back-moving spring can not only make to open
Pulley tightener automatically adjusts the tensioning degree of belt, reduces the hardness stretching of belt, and idler is adapted to belt
Driven along the friction of traffic direction, avoid belt stretcher from being damaged because sidepiece is swung.And spring along Belt Length direction simultaneously
Row sets two, it is possible to reduce the amplitude that the sidepiece of belt stretcher is swung, avoid belt stretcher because transition is crooked and
Reduce the tension to belt.Backing plate at bottom is laminated on pedestal and is provided with multilayer, and backing plate at bottom center is provided with bolt and led to
Hole, pedestal correspond to bolt hole and are provided with screwed hole.Between two back-moving springs, fixing bolt is passed down through fixing bolt
The bolt hole in each layer backing plate at bottom center is simultaneously threadedly connected to the screwed hole of pedestal.After screwing out fixing bolt, bottom can be increased and decreased
The number of plies of portion's backing plate, the thickness of backing plate at bottom is adjusted, and then adjust the pulling force of back-moving spring, increase the use of belt stretcher
Effect, extend the service life of belt stretcher.
As shown in figure 1, belt pulley seat includes two pieces of triangular plates and a block length cube plate.Cuboid plate length direction is drawing
The orientation of tight spring.Triangular plate be parallel to each other and be vertically connected at cuboid plate upper face center, triangular plate
Top connects the wheel shaft of idler.Cuboid plate bottom both ends are fixedly connected with two back-moving spring tops respectively.It is rectangular
The length of body plate is more than three times of back-moving spring top cross-sectional diameter.Cuboid plate add belt pulley seat bottom length and
Lifting surface area, torque of the spring to the support force of belt pulley seat is improved, improve the stability and fastness of belt pulley seat, can
To reduce the damage of belt stretcher.
As shown in Fig. 2 the vibrator of circular shale shaker includes main shaft, fixed mount, gets rid of block, pull bar and adjustable spring.Fixed mount
Wrap vertical fixed plate, horizontal backing plate, central cannulation and bearing pin.Spaced and parallel, vertical fixed plate between vertical fixed plate
Between be vertically fixedly connected by central cannulation, the sleeve joint hole at central cannulation both ends is exposed on the outside of vertical fixed plate.It is vertical solid
The upper lateral part edge of fixed board is vertical with horizontal backing plate to be fixedly connected, and improves the steadiness between two pieces of vertical fixed plates.Vertically
The following side central movable of fixed plate is connected with the first bearing pin and the second bearing pin being parallel to each other, and the first bearing pin and the second bearing pin are left
It is right symmetrical.Horizontal backing plate left and right ends are respectively arranged with the first movable span and the second movable span, movable span lead to two vertical plates it
Between.Get rid of block and get rid of block and second including symmetrical first and get rid of block, and be movably connected at left and right sides of fixed mount.First gets rid of block and second
Get rid of block and be provided with connecting plate, counterweight and locking bolt.Each connecting plate has two pieces to be parallel to each other.Thickness between two connecting plates
Spacer thickness between less than two vertical fixed plates.First one end for getting rid of the connecting plate of block is movably connected on the first bearing pin, the
Two one end for getting rid of the connecting plate of block are movably connected on the second bearing pin.First, which gets rid of one end of block the first bearing pin of connection and second, gets rid of block company
It is movable in the space between vertical fixed plate to connect one end of the second bearing pin.The other end of connecting plate connects counterweight respectively.The
One gets rid of the first locking bolt is vertically connected between the upper lateral part of the connecting plate of block, and second gets rid of and vertically connect between the connecting plate upper lateral part of block
It is connected to the second locking bolt, locking bolt both ends and connecting plate vertical connection.Pull bar includes symmetrical first pull bar and the second pull bar, and correspondingly
Block is got rid of to be arranged at left and right sides of fixed mount.First pull bar bottom is provided with sleeve joint hole and is movably connected on first by the sleeve joint hole
The first locking bolt of block is got rid of, the second pull bar bottom, which is provided with sleeve joint hole and is movably connected on second by the sleeve joint hole respectively, gets rid of block
Second locking bolt.First pull bar top is upward through the first movable span of horizontal backing plate, and the second pull bar top is upward through horizontal pad
Second movable span of plate, the first pull bar top and the second pull bar top are respectively arranged with external screw thread and are threaded with first respectively
Pull-rod nut and the second pull-rod nut.Adjustable spring includes the first spring and second spring and is socketed on the first pull bar and the respectively
Outside two pull bars, between horizontal backing plate and the first pull-rod nut, second spring is located at horizontal backing plate and second and drawn the first spring
Between stem nut.Be provided with the first pad between first pull-rod nut and the first spring, the second pull-rod nut and second spring it
Between be provided with the second pad.Rotating rod nut can adjust the compression degree of adjustable spring, and then adjust the bullet of adjustable spring
Power.First pad and the second pad are separate, make to be independent of each other between pull bar, and pull bar stretches more flexible, avoids between pull bar
It is asynchronous pulling and it is crooked stuck.
The vibrator of vibratory sieve compresses the first spring and second spring because centrifugal force gradually increases, got rid of in start
Block is gradually switched to homonymy from the state of dividing right and left and draws close state, eccentric throw increase, makes vibrator gradual from balance rotary state
Eccentric rotary state is switched to, and then increases the Oscillation Amplitude to vibratory sieve;When the vibrator shutdown of vibratory sieve, due to centrifugation
Power is gradually reduced and loosens the first spring and second spring, gets rid of block and draws close state from homonymy and is gradually switched to the state of dividing right and left,
Eccentric throw reduces, and vibrator is gradually switched to balance rotary state from eccentric rotary state, and then reduce and shaken to vibratory sieve
Dynamic amplitude.Thus, vibrator adjust automatically amplitude in switching on and shutting down, to the Oscillation Amplitude of vibratory sieve when reducing switching on and shutting down, subtract
When having lacked switching on and shutting down to caused by equipment vibration damage.
As shown in Fig. 2 two counterweight bottoms for getting rid of block can mutually be drawn close under the action of the centrifugal force, first is respectively arranged with
Internal thread hole and the second internal thread hole, the first internal thread hole internal thread are connected with the first regulating bolt, spiral shell in the second internal thread hole
Line is connected with the second regulating bolt.By rotating regulating bolt, the extension elongation of regulating bolt can be adjusted, and then adjust two
Spacing when being drawn close because of centrifugal force between block is got rid of, and then adjusts two eccentric throws for getting rid of block, and then adjusts whole vibrator
Peak swing.Regulating bolt includes head and screw rod, and the head of the first regulating bolt is the first magnet, the head of the second regulating bolt
Portion is the opposite polarity of the second magnet, the first magnet and the second magnet, because magnet polarities are conversely attracting, got rid of at two block because from
After mental and physical efforts are drawn close, connection is sucked by the first magnet and the mutual magnetic force of the second magnet, it is possible to reduce get rid of the vibration between block and touch
Hit, and then reduce the damage of vibrator internal structure, while improve the stationarity to be worked under peak swing state of vibrator.
As shown in Fig. 2 the first magnet outer wall and the second magnet outer wall are respectively arranged with iron-clad, iron-clad and magnet outer wall are close
Bonding connection, iron-clad are also fixedly connected with the screw rod of regulating bolt.By setting iron-clad, magnet can be protected, improves magnet
Toughness.Connected by setting iron-clad to be bonded with magnet outer wall, it is possible to reduce de- after magnet fragmentation and reduction magnet fragmentation
Fall, keep the integrality of magnet, ensure the magnetic force stability of magnet.
As shown in Fig. 2 the first counterweight top for getting rid of block can be drawn close under the pulling force effect of spring in horizontal backing plate, and it is fixed
The 3rd magnet is connected with, the counterweight top of the second bolt button can be drawn close under the pulling force effect of spring in horizontal backing plate, and fixed company
It is connected to the 4th magnet.The 5th magnet, corresponding 4th magnet of the other end are fixedly connected with corresponding 3rd magnet in horizontal backing plate one end
Place is fixedly connected with the 6th magnet.3rd magnet is identical with the polarity of the 5th magnet, and the 4th magnet is identical with the 6th magnet polarities.
When getting rid of block and collapsing fixed mount because of shutdown, repel each other because magnet polarities are identical, it is possible to reduce get rid of between block and fixed mount
Collision, reduce the vibrator caused by collision and damage, improve vibrator service life.
As shown in Fig. 2 the connecting plate for getting rid of block is modification of right-angled triangle plate, locking bolt is arranged at the hypotenuse portion of modification of right-angled triangle plate,
Counterweight is fixedly connected on the right angle edge of modification of right-angled triangle plate.Connecting plate due to getting rid of block is modification of right-angled triangle plate, hypotenuse upward,
Right-angle side down, is not only convenient for getting rid of block center of gravity when shutting down and above carrying, minimizes eccentric throw, and is easy to get rid of after start between block
Close proximity, maximize eccentric throw, amplitude maximizes.
As shown in figure 1, vibrator is additionally provided with disc shell, fixed mount, gets rid of block, pull bar and adjustable spring and may be contained within
In disc shell inner cavity, disc housing center is fixedly connected with main shaft.By setting disc shell, exciting can be protected
The inner body of device, reduction fall into dust, and reduction is got rusty, and improve service life, can also reduce part and fly out and hurt sb.'s feelings, and improve peace
Quan Xing.