CN109382310A - Four axis anharmonic formula vibrating screens of one kind and its screening technique - Google Patents
Four axis anharmonic formula vibrating screens of one kind and its screening technique Download PDFInfo
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- CN109382310A CN109382310A CN201710689200.6A CN201710689200A CN109382310A CN 109382310 A CN109382310 A CN 109382310A CN 201710689200 A CN201710689200 A CN 201710689200A CN 109382310 A CN109382310 A CN 109382310A
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- sieve
- axis
- driven shaft
- cabinet
- thin oil
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- 238000012216 screening Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000012423 maintenance Methods 0.000 claims abstract description 11
- 239000011148 porous material Substances 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019580 granularity Nutrition 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 206010003671 Atrioventricular Block Diseases 0.000 description 1
- 208000010271 Heart Block Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/284—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens with unbalanced weights
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/02—Fastening means for fastening screens to their frames which do not stretch or sag the screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention belongs to a kind of four axis anharmonic formula vibrating screens and its screening techniques；Including cabinet, the top of cabinet one end is equipped with feed inlet, cabinet is equipped with sieve nest, sieve nest is the ladder-shaped frame structure small with the big lower part of gradient and top, the both ends of sieve nest are from top to bottom respectively fixed with several groups screen tension device, intermediate transverse girder is equipped between screen tension device, sieve is equipped between screen tension device and intermediate transverse girder, the bottom of sieve is equipped with several support beams, the bottom of cabinet is equipped with several discharge ports, screen cover is equipped between the middle and upper part and cabinet of the sieve nest, the top of the sieve nest is equipped with two four axis thin oil vibration generators, jackshaft is equipped between the driving shaft of two four axis thin oil vibration generators, wherein it is connected to the motor on the outside of the driving shaft of a four axis thin oil vibration generators by drive shaft；With simple structure and reasonable design, maintenance is simple, at low cost, screening efficiency is high and has and utilizes material layering and thoroughly sieve, the advantages of preventing feed blocking.
Description
Technical field
The invention belongs to screening plant technical fields, and in particular to four axis anharmonic formula vibrating screens of one kind and its screening technique.
Background technique
It is divided by motion profile, vibrosieve is circular vibrating screen (single shaft), oval screen (twin shaft or three axis), straight line shaker are (double
Axis), the motion profile of circular vibrating screen or oval screen being projected as on the vertical plane is one round or oval, and the motion profile of straight line shaker is hanging down
The projection faced directly is straight line, by active force when above-mentioned three kinds of linear vibrating screen materials are layered in screening process and sieve thoroughly
Size be it is the same, due to the scrambling of screening materials carrying own profile, when the granularity of screening materials carrying is close to the aperture of sieve,
Sieve plug-hole phenomenon is with regard to extremely serious.
Screening of aggregate vibrating screen is using three layers of circular vibrating screen of traditional form at present, in use plug-hole
Phenomenon is serious, and the circular vibrating screen of traditional form by material and processing technology due to being limited, and device structure is complicated, heavy, screening is imitated
Rate is low, processing capacity is weak, and equipment lubrication mode generally uses dry oil lubrication, and oil filling cycle is short, and line service amount is big, maintenance
The disadvantages of cost of equipment is high.
Summary of the invention
The purpose of the present invention is to overcome the defects in the prior art, and provides a kind of simple structure and reasonable design, maintenance
Simply, at low cost, screening efficiency is high and have using material layering and thoroughly sieve, prevent the four axis anharmonic formula of one kind of feed blocking from vibrating
Sieve and its screening technique.
The object of the present invention is achieved like this: the top including cabinet, cabinet one end is equipped with feed inlet, cabinet is equipped with
Sieve nest, sieve nest are the ladder-shaped frame structure small with the big lower part of gradient and top, and the both ends of sieve nest are from top to bottom respectively fixed with
Several groups screen tension device is equipped with intermediate transverse girder between screen tension device, sets between screen tension device and intermediate transverse girder
Have a sieve, the bottom of sieve is equipped with several support beams, and the bottom of cabinet is equipped with several discharge ports, in the sieve nest on
Screen cover is equipped between portion and cabinet, the top of the sieve nest is equipped with two four axis thin oil vibration generators, two four axis thin oil vibration generators
Driving shaft between be equipped with jackshaft, wherein passing through drive shaft and motor phase on the outside of the driving shaft of four axis thin oil vibration generator
Even.
Preferably, the four axis thin oil vibration generator includes base and cover, and a side bottom of base is equipped with dipstick component, machine
The top of lid is equipped with the cover board with vent hood, and inside between base and cover is equipped with first driven shaft, driving shaft, second driven
Axis and third driven shaft are set with the first bevel pinion, the interposition of driving shaft on the middle position of the first driven shaft
It sets and is set with the first large helical gear, the second large helical gear is set on the middle position of second driven shaft, third driven shaft
Be set with the second bevel pinion on middle position, the both ends of the first large helical gear respectively with the first bevel pinion and the second largest helical teeth
Wheel is meshed, and the second large helical gear is meshed with the second bevel pinion, the both ends of first driven shaft and the both ends of third driven shaft
It is respectively equipped with one group of small fixed eccentric block, the both ends of driving shaft and the both ends of second driven shaft are respectively equipped with one group big fixed eccentric
Block；It is connected between the outside of base and the outside of cover by several groups bolt.
Preferably, the diameter of first bevel pinion and the diameter of the second bevel pinion are identical, the first large helical gear
Diameter is identical with the second largest helical gear diameter, and the diameter of the first large helical gear is twice of the diameter of the first bevel pinion.
Preferably, the radius of the big fixed eccentric block is greater than the radius of small fixed eccentric block.
Preferably, the screen tension device is three groups, and intermediate transverse girder is three groups, and sieve is three groups.
Preferably, the sieve is divided into upper screen, middle layer sieve and lower screen, and the sieve pore of upper screen is greater than middle layer
The sieve pore of sieve, the sieve pore of middle layer sieve are greater than the sieve pore of lower screen.
Preferably, the length of the upper screen is greater than the length of middle layer sieve, and the length of middle layer sieve is greater than lower screen
The length of net.
Preferably, several described support beams according to circular arc trajectory alignment.
Preferably, the both ends of the cabinet are equipped with maintenance door.
A kind of screening technique of four axis anharmonic formula vibrating screen, the screening technique include the following steps:
Step 1: starting motor, motor drive two four axis thin oil vibration generators to start to work by drive shaft and jackshaft,
When material enters at the top of the intracorporal upper screen of sieve；
Step 2: two four axis thin oil vibration generators operate synchronously, the driving shaft and second driven shaft of four axis thin oil vibration generators
In opposite direction with the rotation of identical speed omega 1, first driven shaft and third driven shaft are in opposite direction with identical speed omega 2
Rotation, driving shaft is identical with the direction of rotation of third driven shaft, and first driven shaft is identical with the direction of rotation of second driven shaft, speed
It spends ω 2 and is greater than speed omega 1, the speed omega 1 is 740r/min, and speed omega 2 is 1480r/min；In four axis thin oil vibration generators partially
The resultant force of centrifugal force caused by heart block is the sum of centrifugal force caused by four eccentric blocks；
Step 3: when two four axis thin oil vibration generators operate synchronously in one period of motion, be capable of forming two upwards compared with
Small active force and a downward biggish active force, two upward lesser active forces can make material fast hierarchical, and one
Downward biggish active force can be such that material sieves thoroughly；
Step 4: it is discharged respectively by several discharge ports of the bottom of box after material fast hierarchical and thoroughly sieve, Ji Keshi
The screening of existing material.
The present invention has the advantage that
1, the present invention is by the motion profile of change vibrating body, and within a period of motion, formation two is lesser upwards
Active force realizes the fast hierarchical of material, and one downward biggish active force of formation obtains conducive to material to be sieved, and solves material plug-hole
The problem of.
2, the present invention uses two four axis thin oil vibration generators, and using splashing lubricating system, lubricant effect is abundant, bearing operation
The small fever of resistance is few, and bearing running temperature is low, avoid because temperature it is excessively high caused by the failures such as bearing locking generation, more gear changing
The period of oil reaches 2000 hours, avoids the cumbersome process such as daily maintenance.
3, the present invention changes the mounting structure of sieve and increases the sieving area of sieve, has spy easy to maintenance
Point, especially in the replacement process of sieve, maintenance personal does not have to dismounting screen cover and enters inside narrow sieve nest, can be in two sides reality
Apply dismounting；And it replaces sieve with arbitrariness, needs with the previous following number of plies of replacement all being removed with upper layer compared to having
Absolute predominance.
4, the present invention has that maintenance cost is low, work efficiency is high, and noise is small when equipment is run and can reach more granularities point
The advantages of grade purpose.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of side of the present invention.
Fig. 3 is four axis thin oil vibration generator operation logic figures in the present invention.
Fig. 4 is four axis thin oil vibration generators, one period of motion figure in the present invention.
Fig. 5 is the sieve nest motion profile figure in the present invention.
Fig. 6 is four axis thin oil vibration generator external structure schematic diagrams in the present invention.
Fig. 7 is four axis thin oil vibration generator side structure diagrams in the present invention.
Fig. 8 is the cross-sectional view of four axis thin oil vibration generators in the present invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment, identical label indicates identical component in the various figures.To make simplified form, in each figure only schematically
Ground indicates part relevant to invention, they do not represent its practical structures as product.
As shown in Figure 1, 2, the present invention include cabinet 1,1 one end of cabinet top be equipped with feed inlet 2, cabinet 1 be equipped with sieve
Body 7, sieve nest 7 are the ladder-shaped frame structure small with the big lower part of gradient and top, and the both ends of sieve nest 7 are from top to bottom respectively fixed with
Several groups screen tension device 9 is equipped with intermediate transverse girder 10, screen tension device 9 and intermediate transverse girder 10 between screen tension device 9
Between be equipped with sieve 11, the bottom of sieve 11 is equipped with several support beams 12, and the bottom of cabinet 1 is equipped with several discharge ports 8,
Screen cover 13 is equipped between the middle and upper part and cabinet 1 of the sieve nest 7, the top of the sieve nest 7 is equipped with two four axis thin oil vibration generators
3, jackshaft 4 is equipped between the driving shaft 21 of two four axis thin oil vibration generators 3, wherein the active of a four axis thin oil vibration generators 3
It is connected by drive shaft 5 with motor 6 on the outside of axis 21.As shown in Fig. 6,7,8, four axis thin oil vibration generator 3 described in the utility model
Including base 15 and cover 16, a side bottom of base 15 is equipped with dipstick component 17, and the top of cover 16 is equipped with band vent hood 18
Cover board 19, inside between base 15 and cover 16 is equipped with first driven shaft 20, driving shaft 21, second driven shaft 22 and third
Driven shaft 23 is set with the first bevel pinion 24, the interposition of driving shaft 21 on the middle position of the first driven shaft 20
Set and be set with the first large helical gear 25, be set with the second large helical gear 26 on the middle position of second driven shaft 22, third from
Be set with the second bevel pinion 27 on the middle position of moving axis 23, the both ends of the first large helical gear 25 respectively with the first bevel pinion
24 and second large helical gear 26 be meshed, the second large helical gear 26 is meshed with the second bevel pinion 27, first driven shaft 20
Both ends and the both ends of third driven shaft 23 are respectively equipped with one group small fixed eccentric block 28, the both ends of driving shaft 21 and second driven shaft
22 both ends are respectively equipped with one group big fixed eccentric block 29；Pass through several groups spiral shell between the outside of base 15 and the outside of cover 16
Bolt 30 is connected.The diameter of the diameter of first bevel pinion 24 and the second bevel pinion 27 is identical, the first large helical gear 25
The diameter of diameter and the second large helical gear 26 is identical, and the diameter of the first large helical gear 25 is the two of the diameter of the first bevel pinion 24
Times.The radius of the big fixed eccentric block 29 is greater than the radius of small fixed eccentric block 28.The screen tension device 9 is three groups,
Intermediate transverse girder 10 is three groups, and sieve 11 is three groups.The sieve 11 divides for upper screen, middle layer sieve and lower screen, upper layer
The sieve pore of sieve is greater than the sieve pore of middle layer sieve, and the sieve pore of middle layer sieve is greater than the sieve pore of lower screen.The upper screen
Length is greater than the length of middle layer sieve, and the length of middle layer sieve is greater than the length of lower screen.Several described support beams 12
According to the trajectory alignment of circular arc.The both ends of the cabinet 1 are equipped with maintenance door 14.
A kind of screening technique of four axis anharmonic formula vibrating screen, the screening technique include the following steps:
Step 1: starting motor 6, motor 6 drive two four axis thin oil vibration generators 3 to start by drive shaft 5 and jackshaft 4
Work, when material enters at the top of the upper screen in sieve nest 7；
Step 2: two four axis thin oil vibration generators 3 operate synchronously, the driving shaft 21 of four axis thin oil vibration generators 3 and second from
Moving axis 22 is in opposite direction with the rotation of identical speed omega 1, and first driven shaft 20 and third driven shaft 23 are in opposite direction with phase
Same speed omega 2 rotates, and driving shaft 21 is identical with the direction of rotation of third driven shaft 23, first driven shaft 20 and second driven shaft
22 direction of rotation is identical, and speed omega 2 is greater than speed omega 1, and the speed omega 1 is 740r/min, and speed omega 2 is 1480r/min；
The resultant force of centrifugal force caused by eccentric block is the sum of centrifugal force caused by four eccentric blocks in four axis thin oil vibration generators 3；
Step 3: when two four axis thin oil vibration generators 3 operate synchronously in one period of motion, be capable of forming two upwards compared with
Small active force and a downward biggish active force, two upward lesser active forces can make material fast hierarchical, and one
Downward biggish active force can be such that material sieves thoroughly；
Step 4: several discharge ports 8 after material fast hierarchical and thoroughly sieve respectively by 1 bottom of cabinet are discharged
Realize the screening of material.
As shown in figure 3, the figure on top is small fixed eccentric block 28 and big fixed eccentric block after the installation of four axis thin oil vibration generators 3
State diagram after 29 installation, it is big fixed eccentric after big fixed eccentric block 29 and small fixed eccentric block 28 are in installation condition
Block 29 is in and naturally droops state, and the small eccentricity block 28 for being fixed on first driven shaft 20 is inclined counterclockwise in the state of naturally drooping
4 degree, the small eccentricity block 28 of third driven shaft 23 is fixed on inclined 4 degree clockwise in the state of naturally drooping；The figure of lower part be into
Enter the state diagram of small fixed eccentric block 28 and big fixed eccentric block 29 when original state, at this time big fixed eccentric block 29 and small fixation
Eccentric block 28 is rotated by 360 ° the initial point position of a cycle, two big fixed eccentric block 29 and the rotation of two small fixed eccentric block 28
Turning the motion profile figure that 360 ° of a cycles are formed is exactly track shown in Fig. 5.
As shown in figure 4, the figure of top first layer is from left to right followed successively by small fixed eccentric block 28 and big fixed eccentric block 29
The location diagram of original state and small fixed eccentric block 28 and big fixed eccentric block 29 are in position when the first motion state
Relational graph；The figure of the top second layer is from left to right followed successively by small fixed eccentric block 28 and big fixed eccentric block 29 is in the second movement
It closes position when location diagram and small fixed eccentric block 28 and big fixed eccentric block 29 when state are in third motion state
System's figure；The figure of top third layer is from left to right followed successively by small fixed eccentric block 28 and big fixed eccentric block 29 is in the 4th movement shape
Location diagram and small fixed eccentric block 28 and big fixed eccentric block 29 when state are in positional relationship when five motion states
Figure；The position when figure of bottom is from left to right followed successively by small fixed eccentric block 28 and big fixed eccentric block 29 is in six motion states
Set relational graph and small fixed eccentric block 28 and location diagram when big fixed eccentric block 29 is in seven motion states；Four axis are dilute
The a cycle of oily vibration excitor 3: the driving shaft 21 and second driven shaft 22 of four axis thin oil vibration generators are in opposite direction with identical
Speed omega 1 rotates, and first driven shaft 20 and third driven shaft 23 are in opposite direction with the rotation of identical speed omega 2, driving shaft 21
Identical with the direction of rotation of third driven shaft 23, first driven shaft 20 is identical with the direction of rotation of second driven shaft 22, reversed to revolve
When the two groups of eccentric blocks turned are rotated simultaneously to 0 degree with 180 degree position, the exciting force of generation is the largest, and two groups of reverse rotation
When eccentric block while rotation to 90 degree and 270 degree of positions, the exciting force of generation is 0,000 Ns, the work that two groups of eccentric blocks generate at this time
It firmly cancels out each other, therefore when entering third motion state and when seven motion states, two groups small fixed eccentric block 28 is simultaneously
Upwards, the exciting force that big fixed eccentric block 29 generates is cancelled out each other, and two upward lesser active forces are capable of forming；When entering the
When five motion states, four groups of fixed eccentric blocks are downward simultaneously, produce a downward biggish active force；Four axis thin oil vibration generators
The resultant force of centrifugal force caused by fixed eccentric block is the sum of centrifugal force caused by four eccentric blocks in 3.
The features of the present invention is being, no matter which kind of linear vibrating screen, the motion profile of generation all has symmetric points,
With regard to saying in screening process, by be divided into upwards and downwards the active force that sieves thoroughly be it is equal, material size is bigger, is vibrated
The kinetic energy for sieving transmitting is bigger, but material is once be stuck in mesh, can not just jump out sieve pore or through sieve pore, and it is of the invention most
Big advantage is exactly in a cycle period, and material is conducive to sieve thoroughly, is formed by two upward lesser power material fast hierarchicals
One downward biggish active force makes the material being stuck in mesh through sieve.The important parameter of vibrating screen is exactly motor
Revolving speed and vibrating screen amplitude, such as: the double-amplitude of circular vibrating screen and straight line shaker is 8mm, then its single amplitude is exactly 4mm,
That is its displacement up and down is all 4mm, is the same, ellipse screening length by active force up and down
Axis, if its long axis double-amplitude is 8mm, short axle is double-amplitude 3mm, then it is 4mm in single amplitude of long axis, is conducive to material
Fast hierarchical, short axle is double-amplitude 1.5mm, and the vibrating screen motion profile convenient for the saturating sieve of material, and in the present invention is asymmetric,
If the double-amplitude 8mm of vibrating screen, an amplitude of type sieve upward 3mm of the company of generation within a period of motion, material can be with
Quickly layering, produces the amplitude of a downward 5mm, makes the material being stuck in mesh through sieve.
For the more detailed explanation present invention, the present invention is further elaborated now in conjunction with embodiment.Specific embodiment
It is as follows:
Embodiment one
A kind of four axis anharmonic formula vibrating screens, the top including cabinet 1,1 one end of cabinet is equipped with feed inlet 2, cabinet 1 is equipped with
Sieve nest 7, sieve nest 7 are the ladder-shaped frame structure small with the big lower part of gradient and top, and the both ends of sieve nest 7 are from top to bottom fixed respectively
There is several groups screen tension device 9, is equipped with intermediate transverse girder 10, screen tension device 9 and intermediate transverse girder between screen tension device 9
Sieve 11 is equipped between 10, the bottom of sieve 11 is equipped with several support beams 12, and the bottom of cabinet 1 is equipped with several discharge ports
8, screen cover 13 is equipped between the middle and upper part and cabinet 1 of the sieve nest 7, the top of the sieve nest 7 is equipped with two four axis thin oil excitings
Device 3 is equipped with jackshaft 4 between the driving shaft 21 of two four axis thin oil vibration generators 3, wherein the master of a four axis thin oil vibration generators 3
It is connected by drive shaft 5 with motor 6 on the outside of moving axis 21.The four axis thin oil vibration generator 3 includes base 15 and cover 16, base 15
A side bottom be equipped with dipstick component 17, the top of cover 16 is equipped with the cover board 19 with vent hood 18, base 15 and cover 16 it
Between inside be equipped with first driven shaft 20, driving shaft 21, second driven shaft 22 and third driven shaft 23, the first driven shaft
It is set with the first bevel pinion 24 on 20 middle position, the first large helical gear 25 is set on the middle position of driving shaft 21,
It is set with the second large helical gear 26 on the middle position of second driven shaft 22, is set on the middle position of third driven shaft 23
Two bevel pinions 27, the both ends of the first large helical gear 25 are meshed with the first bevel pinion 24 and the second large helical gear 26 respectively,
Second large helical gear 26 is meshed with the second bevel pinion 27, the both ends of first driven shaft 20 and the both ends point of third driven shaft 23
Not She You one group small fixed eccentric block 28, the both ends of driving shaft 21 and the both ends of second driven shaft 22 are respectively equipped with one group of big fixation
Eccentric block 29；It is connected between the outside of base 15 and the outside of cover 16 by several groups bolt 30.First bevel pinion
The diameter of 24 diameter and the second bevel pinion 27 is identical, the diameter of the first large helical gear 25 and the diameter of the second large helical gear 26
Identical, the diameter of the first large helical gear 25 is twice of the diameter of the first bevel pinion 24.The half of the big fixed eccentric block 29
Diameter is greater than the radius of small fixed eccentric block 28.The screen tension device 9 is three groups, and intermediate transverse girder 10 is three groups, and sieve 11 is
Three groups.The sieve 11 divides for upper screen, middle layer sieve and lower screen, and the sieve pore of upper screen is greater than the sieve of middle layer sieve
Hole, the sieve pore of middle layer sieve are greater than the sieve pore of lower screen.The length of the upper screen is greater than the length of middle layer sieve, middle layer
The length of sieve is greater than the length of lower screen.Several described support beams 12 according to circular arc trajectory alignment.The cabinet 1
Both ends be equipped with maintenance door 14.
A kind of screening technique of four axis anharmonic formula vibrating screen, the screening technique include the following steps:
Step 1: starting motor 6, motor 6 drive two four axis thin oil vibration generators 3 to start by drive shaft 5 and jackshaft 4
Work, when material enters at the top of the upper screen in cabinet 1；
Step 2: two four axis thin oil vibration generators 3 operate synchronously, the driving shaft 21 of four axis thin oil vibration generators 3 and second from
Moving axis 22 is in opposite direction with the rotation of identical speed omega 1, and first driven shaft 20 and third driven shaft 23 are in opposite direction with phase
Same speed omega 2 rotates, and driving shaft 21 is identical with the direction of rotation of third driven shaft 23, first driven shaft 20 and second driven shaft
22 direction of rotation is identical, and speed omega 2 is greater than speed omega 1, and the speed omega 1 is 740r/min, and speed omega 2 is 1480r/min；
The resultant force of centrifugal force caused by eccentric block is the sum of centrifugal force caused by four eccentric blocks in four axis thin oil vibration generators 3；
Step 3: when two four axis thin oil vibration generators 3 operate synchronously in one period of motion, be capable of forming two upwards compared with
Small active force and a downward biggish active force, two upward lesser active forces can make material fast hierarchical, and one
Downward biggish active force can be such that material sieves thoroughly；
Step 4: several discharge ports 8 after material fast hierarchical and thoroughly sieve respectively by 1 bottom of cabinet are discharged
Realize the screening of material.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " setting ", " peace
Dress " etc. shall be understood in a broad sense, for example, it may be being fixedly connected, is integrally connected, may be a detachable connection；It can also be with
It is the connection inside two elements；It can be directly connected, it can also indirectly connected through an intermediary, for the general of this field
For logical technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.It is above specifically
Bright illustrating only for feasible embodiment of the invention, the protection model that they are not intended to limit the invention
It encloses, it is all to should be included in protection of the invention without departing from equivalent implementations, change made by technical spirit of the present invention and transformation
Within the scope of.
Claims (10)
1. a kind of four axis anharmonic formula vibrating screens, the top including cabinet (1), cabinet (1) one end are equipped with feed inlet (2), cabinet (1)
It is equipped with sieve nest (7), it is characterised in that: sieve nest (7) is the ladder-shaped frame structure small with the big lower part of gradient and top, sieve nest
(7) both ends are from top to bottom respectively fixed with several groups screen tension device (9), and centre is equipped between screen tension device (9)
Crossbeam (10) is equipped with sieve (11) between screen tension device (9) and intermediate transverse girder (10), and the bottom of sieve (11) is equipped with several
A support beam (12), the bottom of cabinet (1) are equipped with several discharge ports (8), the middle and upper part and cabinet (1) of the sieve nest (7)
Between be equipped with screen cover (13), the top of the sieve nest (7) is equipped with two four axis thin oil vibration generators (3), two four axis thin oil excitings
Jackshaft (4) are equipped between the driving shaft (21) of device (3), wherein on the outside of the driving shaft (21) of a four axis thin oil vibration generators (3)
It is connected by drive shaft (5) with motor (6).
2. a kind of four axis anharmonic formula vibrating screen according to claim 1, it is characterised in that: the four axis thin oil vibration generator
It (3) include base (15) and cover (16), a side bottom of base (15) is equipped with dipstick component (17), and cover is set at the top of (16)
There is the cover board (19) with vent hood (18), the inside between base (15) and cover (16) is equipped with first driven shaft (20), active
Axis (21), second driven shaft (22) and third driven shaft (23) are set on the middle position of the first driven shaft (20)
First bevel pinion (24) is set with the first large helical gear (25) on the middle position of driving shaft (21), second driven shaft (22)
Middle position on be set with the second large helical gear (26), the second small helical teeth is set on the middle position of third driven shaft (23)
It takes turns (27), the both ends of the first large helical gear (25) are meshed with the first bevel pinion (24) and the second large helical gear (26) respectively,
Second large helical gear (26) is meshed with the second bevel pinion (27), the both ends of first driven shaft (20) and third driven shaft (23)
Both ends be respectively equipped with one group small fixed eccentric block (28), the both ends of driving shaft (21) and the both ends difference of second driven shaft (22)
Equipped with one group big fixed eccentric block (29)；Pass through several groups bolt (30) between the outside of base (15) and the outside of cover (16)
It is connected.
3. a kind of four axis anharmonic formula vibrating screen according to claim 2, it is characterised in that: first bevel pinion (24)
Diameter and the second bevel pinion (27) diameter it is identical, the diameter of the first large helical gear (25) and the second large helical gear (26)
Diameter is identical, and the diameter of the first large helical gear (25) is twice of the diameter of the first bevel pinion (24).
4. a kind of four axis anharmonic formula vibrating screen according to claim 2, it is characterised in that: the big fixed eccentric block (29)
Radius be greater than small fixed eccentric block (28) radius.
5. a kind of four axis anharmonic formula vibrating screen according to claim 1, it is characterised in that: the screen tension device (9)
It is three groups, intermediate transverse girder (10) is three groups, and sieve (11) is three groups.
6. a kind of four axis anharmonic formula vibrating screen according to claim 3, it is characterised in that: the sieve (11) is divided into upper layer
Sieve, middle layer sieve and lower screen, the sieve pore of upper screen is greater than the sieve pore of middle layer sieve, under the sieve pore of middle layer sieve is greater than
The sieve pore of layer sieve.
7. a kind of four axis anharmonic formula vibrating screen according to claim 4, it is characterised in that: the length of the upper screen is big
In the length of middle layer sieve, the length of middle layer sieve is greater than the length of lower screen.
8. a kind of four axis anharmonic formula vibrating screen according to claim 1, it is characterised in that: several described support beams
(12) according to the trajectory alignment of circular arc.
9. a kind of four axis anharmonic formula vibrating screen according to claim 1, it is characterised in that: the both ends of the cabinet (1) are set
There are maintenance door (14).
10. a kind of screening technique of four axis anharmonic formula vibrating screen as claimed in claims 1-9, it is characterised in that: the screening side
Method includes the following steps:
Step 1: starting motor (6), motor (6) drive two four axis thin oil vibration generators by drive shaft (5) and jackshaft (4)
(3) it starts to work, when material enters at the top of the upper screen in sieve nest (7)；
Step 2: two four axis thin oil vibration generators (3) operate synchronously, the driving shaft (21) and second of four axis thin oil vibration generators (3)
Driven shaft (22) is in opposite direction with the rotation of identical speed omega 1, and first driven shaft (20) and third driven shaft (23) are along opposite
Direction is rotated with identical speed omega 2, and driving shaft (21) is identical with the direction of rotation of third driven shaft (23), first driven shaft
(20) identical with the direction of rotation of second driven shaft (22), speed omega 2 is greater than speed omega 1, and the speed omega 1 is 740r/min,
Speed omega 2 is 1480r/min；The resultant force of centrifugal force caused by eccentric block is four eccentric blocks in four axis thin oil vibration generators (3)
The sum of generated centrifugal force；
Step 3: it when two four axis thin oil vibration generators (3) operate synchronously in one period of motion, is capable of forming two smaller upwards
Active force and a downward biggish active force, two upward lesser active forces can make material fast hierarchical, one to
Under biggish active force material can be made to sieve thoroughly；
Step 4: several discharge ports (8) after material fast hierarchical and thoroughly sieve respectively by cabinet (1) bottom are discharged
Realize the screening of material.
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| CN201710689200.6A CN109382310B (en) | 2017-08-05 | 2017-08-05 | Four-axis non-harmonic vibrating screen and screening method thereof |
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| CN201710689200.6A CN109382310B (en) | 2017-08-05 | 2017-08-05 | Four-axis non-harmonic vibrating screen and screening method thereof |
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| CN109382310B CN109382310B (en) | 2023-09-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113441385A (en) * | 2021-05-12 | 2021-09-28 | 吴杰 | Perlite mine or zeolite ore beneficiation process production line |
| CN113649264A (en) * | 2021-08-15 | 2021-11-16 | 鞍山鞍重矿山机械有限公司 | Large-scale linear vibrating screen with four-axis vertical force screening inclined screen surface |
| CN118681786A (en) * | 2024-07-24 | 2024-09-24 | 华南机械制造有限公司 | Super large vibrating screen and amplitude calculation method |
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|---|---|
| CN109382310B (en) | 2023-09-29 |
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