CN108411679A - A kind of double eccentric block high-speed shaking boxes and shake method - Google Patents
A kind of double eccentric block high-speed shaking boxes and shake method Download PDFInfo
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- CN108411679A CN108411679A CN201810370828.4A CN201810370828A CN108411679A CN 108411679 A CN108411679 A CN 108411679A CN 201810370828 A CN201810370828 A CN 201810370828A CN 108411679 A CN108411679 A CN 108411679A
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- pipeline
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- eccentric
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/18—Shaking apparatus for wire-cloths and associated parts
- D21F1/20—Shaking apparatus for wire-cloths and associated parts in Fourdrinier machines
Abstract
The present invention discloses a kind of double eccentric block high-speed shaking boxes and shake method, shaking box includes babinet, two pairs of gears and two eccentric blocks, it is equipped in babinet in two pairs of gears being distributed up and down, gear shaft there are one being set in each pair of gear, two gears in each pair of gear are respectively arranged on the both ends of gear shaft, it is set between two gears there are one eccentric block, two eccentric blocks are symmetrically installed；Voided layer, the external eccentric block adjustment of weight system of voided layer are equipped in eccentric block.It is the centrifugal force that is generated by two eccentric blocks to provide that its shake method, which is the shake power of shaking box, centrifugal force is directly proportional to the weight of eccentric block, it is square directly proportional to gear axle rotary speed, change the weight of voided layer in eccentric block by adjustment of weight system, and then adjusts the shake power and amplitude of shaking box.The present invention is substantially reduced the cost of investment and maintenance cost of equipment, is also reduced equipment complexity, control complexity and the requirement to lubricating system by the way of double eccentric blocks.
Description
Technical field
The present invention relates to pulp and paper technology field, more particularly to a kind of double eccentric block high-speed shaking boxes and shake method.
Background technology
It is to cause the undesirable principal element of formation of sheet, and aligning for fourdrinier part fiber results in paper that fleeces is poly-
The aspect ratio and lateral shrinkage opened are all higher, in wet end shake system, pass through and generate speed between the upper layer and lower layer of slurry stream
Difference is sheared and is disturbed, and can effectively be overcome fleeces poly-, be alleviated aligning for fiber, improve evenness and paper in length and breadth
Than.Common wet end shake system is to transmit vibrations to forming table by shaking box, and slurry is driven to shake in lateral generate of paper machine
It is dynamic.But its vibration frequency and amplitude are all limited, centering, high-speed paper machine effect unobvious；But also it is produced in vertical direction
Raw vibration causes to jump when serious and starch；Its mechanical wear is accelerated, the fracture that easily causes rack, steel spring plate etc., even basic components
Damage.
In order to adapt to the requirement of middle and high fast paper machine, there is papermaker to research and develop high-speed shaking box at present.High speed is shaken
The case that shakes works with physics centre-of-gravity principle, and using several part mass moved in same system, the center of gravity for keeping its common is not
Become；In same gear mechanism housing, the arrangement of quality is to make center of gravity that can only be moved along breast roll axis direction, if vibration
Device mass rotation, then breast roll with a counter motion in response.Inertia force in kinematic system remains unchanged, and only passes through
Shake bar transmits.To reach the vibration frequency and amplitude that common vibrator is unable to reach.
As shown in Figure 1, existing high-speed shaking box, which includes four pairs of gears 11 altogether, (is located at two teeth at same gear shaft both ends
Wheel partners) and four eccentric blocks 12, a pair of for driving wheel in every two pairs of gears set up and down, another pair gear is
Driven wheel, each driven wheel correspondence are engaged operating, two full symmetric peaces of eccentric block up and down of every two pairs of gears with a driving wheel
Dress forms 180 degree angle.For shaking box in this way in operation process, the eccentric block of every two pairs of gears all only generates shaking for horizontal direction
It shakes power, the shake power in other directions is cancelled out each other.It can adjust shaking box by adjusting the phase angle of two pairs of eccentric blocks and produced
The size of raw shake power, so as to adjust the amplitude of shake.
But in practice, this amplitude regulative mode of existing high-speed shaking box the shortcomings that there are still following several respects：The
One, from mechanical structure, need to use four pairs of gears and two pairs of eccentric blocks, the driving wheel in every two pairs of gears is needed by inclined
Heart shaft coupling is connected with transmission device, this makes shake box structure become complicated, and processing and maintenance cost improve.The second, from control
From the point of view of angle, the amplitude of shaking box, each pair of eccentric block are adjusted to the phase angle of eccentric block in operational process stepless changing two
Phase detector there are one being intended to, while the phase to each pair of eccentric block being needed to control, this needs extremely complex control
System, German Voith shaking boxes are linked the driving wheel in every two pairs of gears, then logical servo-control system using two servo motors
Two motors are controlled to achieve the purpose that adjusting, although Finland Valmet is separately equipped with a set of only with a servo motor
Be connected more complicated transmission device and amplitude regulating device with servo motor transmission axis, therefore no matter which kind of mode, control
System is all extremely complex, and investment and maintenance cost are very high.Third, all gears, gear-bearing, gear are connected with transmission device
Eccentric shaft coupling is required for good lubrication, and such a structure increases lubricating system investment and maintenance costs.So the structure
High-speed shaking box is not widely used at present, and equipment cost is excessively high, it is also difficult to adapt to current enterprises in pulp and paper industry
Fast development and the market demand.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of double eccentric block high-speed shaking boxes, the structures
High-speed shaking box greatly reduce the complexity of mechanical structure, lubricating system and control system, also reduce production cost and
Maintenance cost improves the stability of system.
Another object of the present invention is to provide a kind of shake methods realized by above-mentioned double eccentric block high-speed shaking boxes.
The technical scheme is that：A kind of double eccentric block high-speed shaking boxes, including babinet, two pairs of gears and two bias
Block is equipped in babinet in two pairs of gears being distributed up and down, is set in each pair of gear there are one gear shaft, two teeth in each pair of gear
Wheel is respectively arranged on the both ends of gear shaft, is set between two gears there are one eccentric block, two eccentric blocks are symmetrically installed and form 180
Spend the symmetric relation at angle；Voided layer, the external eccentric block adjustment of weight system of voided layer are equipped in eccentric block；
A pair of in two pairs of gears is driving wheel, and another pair is driven wheel, the external drive system of driving wheel, is set in drive system
A motor is set, which can be used servo motor, variable-frequency motor can also be used.
The eccentric block ecto-entad is provided with voided layer and solid layer, and solid layer is on gear shaft periphery, solid layer
Equipped with fluid passage, gear shaft is equipped with interface channel, and the both ends of fluid passage connect with voided layer and interface channel respectively, even
Connect the external eccentric block adjustment of weight system of the other end in road.
The global sections of the eccentric block are in semicircle shape, and voided layer, solid layer and peace are followed successively by by outer circumferential center of circle direction
Hole is filled, passes through key connection with gear shaft at mounting hole.Eccentric block is made by metal material, can be carbon steel, cast iron or cast steel etc..
The fluid passage pass through solid layer, interface channel along gear shaft axis direction be arranged, fluid passage with connect
The perpendicular setting in channel；One end of gear shaft is equipped with hose coupling, and interface channel one end is connect with fluid passage, and interface channel is another
One end is located on the end face of gear shaft and by the external eccentric block adjustment of weight system of hose coupling.In addition, can also be in gear shaft
End on rotary joint is installed, rotary joint is connected with the connecting tube being fixed in outer case by hose, is come from so again
The liquid of eccentric block adjustment of weight system can pass through the interface channel and bias on connecting tube, hose, rotary joint, gear shaft
The voided layer of fluid passage disengaging eccentric block on block.
A diameter of 20~30mm of fluid passage in the eccentric block, a diameter of the 20 of interface channel on gear shaft~
30mm。
In the eccentric block, the volume of voided layer is the 1/3~5/7 of entire eccentric block volume.
The eccentric block adjustment of weight system includes liquid-filling pool, pump, first pipe, second pipe, third pipeline, the 4th pipe
Road, the 5th pipeline and the 6th pipeline, wherein third pipeline and the 4th pipeline parallel connection form eccentric block connecting tube group, third pipeline
End connect with an eccentric block, the end of the 4th pipeline is connect with another eccentric block；
When needing to increase liquid in eccentric block, liquid-filling pool, first pipe, pump, second pipe and eccentric block connecting tube group
It is sequentially communicated to form feed liquor circuit；
When needing to reduce liquid in eccentric block, eccentric block connecting tube group, the 5th pipeline, pump, the 6th pipeline and liquid-filling pool
It is sequentially communicated to form drawing liquid circuit.
The first pipe is equipped with first switch valve, and second pipe is equipped with second switch valve, and third pipeline is equipped with
Third switch valve, the 4th pipeline are equipped with the 4th switch valve, and the 5th pipeline is equipped with the 5th switch valve, and the 6th pipeline is equipped with the
Six switch valves；It is additionally provided with the first solenoid valve on third pipeline, the second solenoid valve is additionally provided on the 4th pipeline.By upper
Each switch valve is stated, corresponding pipeline connection is can control or is closed, feed liquor circuit or drawing liquid circuit are formed it into, to increase or decrease
The weight of two eccentric blocks；First solenoid valve and the second solenoid valve are mainly used for adjusting third pipeline and the 4th pipeline
The corresponding eccentric fluid flow in the block of upper disengaging, is easy to implement the accurate adjusting of eccentric block weight.
In eccentric block adjustment of weight system, pump as metering pump, to which the precision of flow control can be improved；Liquid can be water
Or other liquid environmental-friendly, free from corrosion proportion is bigger.It is former when the system is using eccentric block weight is adjusted
Reason is：When needing to the voided layer pumping liquid of eccentric block, each switch valve on drawing liquid circuit is first closed, feed liquor is opened and returns
Each switch valve of road, and start pump, the aperture of each solenoid valve is controlled by flow control system, makes to enter upper and lower two
A bias fluid flow in the block is essentially equal, when the weight of eccentric block reaches requirement, while closing pump, closes outer case
The adjacent switch valve of upper connector, prevents liquid countercurrent.When needing to reduce the liquid in eccentric block voided layer, feed liquor is first closed
Each switch valve on circuit opens each switch valve on drawing liquid circuit, starts pump, each electricity is controlled by flow control system
The aperture of magnetically condition valve keeps the fluid flow being discharged in upper and lower two eccentric blocks essentially equal, is wanted when the weight of eccentric block reaches
When asking, while closing pump, the adjacent switch valve of outer case upper connector is closed, liquid countercurrent is prevented.
The babinet includes internal box, outer case and shake bar, and internal box is set in outer case, on the inner bottom surface of outer case
Equipped with sliding rail, internal box is installed on sliding rail, and one end of shake bar passes through flange and internal box is fixed and connected after outer case
It connects.In two pairs of gears, one pair of which gear is driving gear, and another pair gear is driven gear, and operating is engaged with driving wheel, main
The external drive system of the corresponding gear shaft of moving gear.Driving gear is mounted on the lower section of driven gear, and two on same gear shaft
A form of gear tooth is opposite.Two full symmetric installations of eccentric block up and down of two pairs of gears form the symmetric relation at 180 degree angle, together
When gear, eccentric block have the weight such as good, etc. rotary inertias so that only generating horizontal direction in gear operation
Power, and the power in other directions is completely counterbalanced by, to which harmful effect will not be generated to shake box foundation and breast roll device.Gear turns
Dynamic speed is 0~500 rpm, and equipment has good dynamic balancing, and completely without the movement or vibration in any direction.
Internal box swings back and forth on the sliding rail of outer case, and full swing amplitude is 0~25mm, and shake frequency is 0~500 turn/min,
The outside other directions of water removal square are without any stress.Shake bar one end is connected by flange with internal box, and connecting portion is located at interior
The middle part of babinet, the other end are connected by thrust bearing with breast roll axis, to neither interfere the rotation of breast roll, and can be shake power
Breast roll is passed to, wet end is allowed to generate shake.Drive system includes a motor, can be servo motor, can also be variable-frequency electric
Machine, motor drives a pair of of gear as driving gear to rotate, to generate shake power, the control system of shaking box by eccentric block
By the rotating speed of servo-drive system or frequency converter regulation motor, to control the shake frequency of shaking box.
The present invention is by the shake method that above-mentioned double eccentric block high-speed shaking boxes are realized：The shake power of shaking box is to pass through
The centrifugal force that two eccentric blocks generate is come what is provided, and centrifugal force is directly proportional to the weight of eccentric block, with gear axle rotary speed
It is square directly proportional；Shake frequency under the same conditions, the weight of eccentric block is bigger, and the centrifugal force of generation is bigger, shaking box
Shake power is bigger, bigger to the amplitude of shaking box, therefore, changes the weight of voided layer in eccentric block by adjustment of weight system
Amount, and then adjust the shake power and amplitude of shaking box.
The operation principle of above-mentioned double eccentric block high-speed shaking boxes and shake method is as follows：
Internal box is mounted on the sliding rail in outer container, the shake power generated with gear and eccentric block operating by drive system
Horizontal hunting is carried out, drive system is by controlling the velocity of rotation of gear to adjust the shake frequency of shaking box；
Two pairs of gears and two eccentric blocks are installed, two eccentric blocks on two pairs of gears are in completely right up and down in internal box
Claim installation, form the symmetric relation at 180 degree angle, at the same gear, the eccentric block on two gear shafts have the weight such as good, etc.
Rotary inertia, so that the power of horizontal direction is only generated in gear operation, and the power in other directions is completely counterbalanced by；
The shake power of shaking box is the centrifugal force that is generated by eccentric block to provide, the weight of centrifugal force and eccentric block at
Direct ratio, it is square directly proportional to rotary speed, shake frequency under the same conditions, the weight of eccentric block is bigger, generation from
Mental and physical efforts are bigger, and the shake power of shaking box is bigger, bigger to the amplitude of shake；
Eccentric block is divided into voided layer and solid layer along radial direction, when that need to improve amplitude, passes through eccentric block adjustment of weight
System pumps more liquid and enters in the voided layer of eccentric block, to improve the weight of eccentric block, and then improves shaking for shake
Width；When the amplitude of shake is excessive, liquid is taken away from the voided layer of eccentric block by eccentric block adjustment of weight system, to subtract
The weight of few eccentric block, and then reduce the amplitude of shake.
The present invention compared with the existing technology, has the advantages that：
This double eccentric block high-speed shaking box is substantially reduced and is set only with two pairs of gears, two eccentric blocks and a motor
Standby cost of investment and maintenance cost.Meanwhile the mode of double eccentric blocks reduces equipment complexity, control complexity and to lubrication
The requirement of system improves the stability of system.
In this double eccentric block high-speed shaking box, shake frequency can be controlled by the rotating speed of motor, pass through the weight of eccentric block
The amplitude of shake is adjusted, control is very simple, greatly reduces the complexity of control.
In this double eccentric block high-speed shaking box, by the way that eccentric block part is set as voided layer, eccentric block adjustment of weight is utilized
System is pumped into or extracts out liquid to the voided layer, to change the weight of eccentric block, with this come adjust shake vibration of bar power and
Amplitude can reach more accurate regulating effect, and its regulative mode is simpler easy to operate compared with existing shaking box.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing shaking box.
Fig. 2 is the structural schematic diagram of this double eccentric block high-speed shaking box.
Fig. 3 is the Section A-A view of Fig. 2.
Fig. 4 is the double mounting structure schematic diagrams of eccentric block in the inner box.
Fig. 5 is the section B-B view of Fig. 4.
Fig. 6 is the structural schematic diagram of eccentric block.
Fig. 7 is the C-C section views of Fig. 6.
Fig. 8 is the principle schematic of eccentric block adjustment of weight system.
Specific implementation mode
With reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Embodiment
A kind of double eccentric block high-speed shaking boxes of the present embodiment, as shown in Figure 2 or Figure 3, mainly by internal box 1, outer case 2,
The compositions such as shake bar 3, pedestal 5, drive system 6, lubricating system 7, eccentric block adjustment of weight system and control system.Internal box is pacified
Dress in the outer case, is supported by sliding rail 4.Internal box swings back and forth on the sliding rail of outer case, full swing amplitude be 0~
25mm, shake frequency are 0~500 turn/min, and the outside other directions of water removal square are without any stress.
3 one end of shake bar is connected by flange with internal box, and connecting portion is located at the middle part of internal box, and the other end is by pushing away
Shake power to neither interfere the rotation of breast roll, and can be passed to breast roll, allowed by the external breast roll axis (not shown) of power bearing
Wet end generates shake.
Drive system includes a motor, can be servo motor, can also be variable-frequency motor, and motor drives two pairs of gears
Rotation uses variable-frequency motor, control system to pass through frequency converter regulation motor to make eccentric block generate shake power in this example
Rotating speed, to control the shake frequency of shaking box.Lubrication identical with existing shaking box can be used in lubricating system and control system
System and control system.
It is (including left driving gear 13, right driving gear 14, left that two pairs of gears are equipped with as shown in Fig. 4 or Fig. 5, in internal box
Driven gear 15 and right driven gear 16), eccentric block 12, fixed block 17 and gear shaft 18 etc., include two pairs of gears and two altogether
Eccentric block.Eccentric block is mounted on the centre of each pair of gear by fixed block.
In two pairs of gears, a pair is driving gear, and another pair gear is driven gear, and operating is engaged with driving gear.It is main
Moving gear is mounted on the lower section of driven gear, two forms of gear tooth on same gear shaft on the contrary, i.e. left driven gear with it is right from
The tooth form of moving gear is on the contrary, left driving gear is opposite with the tooth form of right driving gear.Two eccentric blocks up and down in two pairs of gears
Full symmetric installation, forms the symmetric relation at 180 degree angle, at the same each gear, each eccentric block all have the weight such as good, etc. turn
Dynamic inertia, so that the power of horizontal direction is only generated in gear operation, and the power in other directions is completely counterbalanced by, thus will not
Harmful effect is generated to shaking box and breast roll device.For velocity of rotation at 0~500 rpm, equipment has good dynamic balancing, and
Completely without the movement or vibration in any direction, gear shaft one end of internal box is provided with circular interface channel 19, channel
A diameter of 20mm~30mm, channel diameter is 20mm in this example.
As is seen in fig. 6 or fig. 7, eccentric block is divided into voided layer 12-1 and solid layer 12-2 along radial direction.Voided layer is in reality
The top of central layer, far from the center of circle.Voided layer can inject liquid.Eccentric block is made by metal material, can be carbon steel, cast iron or
Cast steel etc., eccentric block is made using A3 steel in this example.The volume that the volume of eccentric block voided layer accounts for entire eccentric block can
To be 1/3~5/7, the volume of eccentric block voided layer accounts for the 5/7 of entire eccentric block volume in this example.
There are one fluid passage 12-3 in voided layer and solid layer, a diameter of 20mm~30mm in the channel, in this example
Channel diameter is 20mm, this fluid passage connects with the interface channel on gear shaft, forms a continuous channel.
As shown in figure 3, the one end for being provided with interface channel on the gear shaft of internal box is equipped with rotary joint 8, rotary joint 8
Connected with the connecting tube 10 being fixed in outer case by hose 9, the liquid in this way from eccentric block adjustment of weight system can be with
The voided layer of eccentric block is passed in and out by the fluid passage on connecting tube, hose, rotary joint, interface channel and eccentric block.
As shown in figure 8, eccentric block adjustment of weight system is mainly by liquid-filling pool 20, pump 21, first pipe 22, second pipe
23, third pipeline 24, the 4th pipeline 25, the 5th pipeline 26, the 6th pipeline 27, first switch valve 28, second switch valve 29, third
Switch valve 30, the 4th switch valve 31, the 5th switch valve 32, the 6th switch valve 33, the first solenoid valve 34 and the second electromagnetism tune
Valve 35 is saved to form.Wherein, third pipeline and the 4th pipeline compose in parallel eccentric block connecting tube group, and entire regulating system includes two
Liquid flow sends road back to, and a circuit enters in eccentric block (i.e. feed liquor circuit, by liquid-filling pool, the first pipe from liquid-filling pool pumping liquid
Road, pump, second pipe and eccentric block connecting tube group are sequentially communicated to be formed), another circuit releases liquid (i.e. from eccentric block
Drawing liquid circuit is sequentially communicated and is formed by eccentric block connecting tube group, the 5th pipeline, pump, the 6th pipeline and liquid-filling pool).
When needing to the voided layer pumping liquid of eccentric block, first close each switch valve on drawing liquid circuit, open into
Each switch valve on liquid circuit, and start pump, the aperture of each solenoid valve is controlled by flow control system, makes to enter upper
Lower two bias fluid flow in the block is essentially equal, when the weight of eccentric block reaches requirement, while closing pump, closes outer
The adjacent switch valve of babinet upper connector, prevents liquid countercurrent.
When needing to reduce the liquid in eccentric block voided layer, each switch valve on feed liquor circuit is first closed, opens and takes out
Each switch valve on liquid circuit starts pump, the aperture of each solenoid valve is controlled by flow control system, makes two up and down
The fluid flow being discharged in eccentric block is essentially equal, when the weight of eccentric block reaches requirement, while closing pump, closes outer container
The adjacent switch valve of body upper connector, prevents liquid countercurrent.
In the system, used pump is metering pump, to which the precision of flow control can be improved.Used liquid can be with
It is water or other other liquid environmental-friendly, free from corrosion proportion is bigger.
The shake method realized by above-mentioned double eccentric block high-speed shaking boxes is：The shake power of shaking box is inclined by two
Heart block generate centrifugal force come what is provided, centrifugal force is directly proportional to the weight of eccentric block, with gear axle rotary speed square at
Direct ratio；Shake frequency under the same conditions, the weight of eccentric block is bigger, and the centrifugal force of generation is bigger, the shake power of shaking box
It is bigger, it is bigger to the amplitude of shaking box, therefore, change the weight of voided layer in eccentric block by adjustment of weight system, into
And adjust the shake power and amplitude of shaking box.
The operation principle of above-mentioned double eccentric block high-speed shaking boxes and shake method is as follows：
On the sliding rail of internal box installation in the outer case, by drive system with gear and the shake of eccentric block operating generation
Power carries out horizontal hunting, and drive system is by controlling the velocity of rotation of gear to adjust the shake frequency of shaking box；
Two pairs of gears and two eccentric blocks are installed, two eccentric blocks on two pairs of gears are in completely right up and down in internal box
Claim installation, form the symmetric relation at 180 degree angle, at the same gear, the eccentric block on two gear shafts have the weight such as good, etc.
Rotary inertia, so that the power of horizontal direction is only generated in gear operation, and the power in other directions is completely counterbalanced by；
The shake power of shaking box is the centrifugal force that is generated by eccentric block to provide, the weight of centrifugal force and eccentric block at
Direct ratio, it is square directly proportional to rotary speed, shake frequency under the same conditions, the weight of eccentric block is bigger, generation from
Mental and physical efforts are bigger, and the shake power of shaking box is bigger, bigger to the amplitude of shake；
Eccentric block is divided into voided layer and solid layer along radial direction, when that need to improve amplitude, passes through eccentric block adjustment of weight
System pumps more liquid and enters in the voided layer of eccentric block, to improve the weight of eccentric block, and then improves shaking for shake
Width；When the amplitude of shake is excessive, liquid is taken away from the voided layer of eccentric block by eccentric block adjustment of weight system, to subtract
The weight of few eccentric block, and then reduce the amplitude of shake.
As described above, the present invention can be better realized, above-described embodiment is only presently preferred embodiments of the present invention, is not used
To limit the practical range of the present invention；It is i.e. all according to equivalent changes and modifications made by the content of present invention, all wanted for right of the present invention
Range claimed is asked to be covered.
Claims (10)
1. a kind of double eccentric block high-speed shaking boxes, which is characterized in that including babinet, two pairs of gears and two eccentric blocks, in babinet
Equipped in two pairs of gears being distributed up and down, being set in each pair of gear there are one gear shaft, two gears in each pair of gear are set respectively
It is set between the both ends of gear shaft, two gears there are one eccentric block, two eccentric blocks are symmetrically installed；It is equipped in eccentric block hollow
Layer, the external eccentric block adjustment of weight system of voided layer；
A pair of in two pairs of gears is driving wheel, and another pair is driven wheel, the external drive system of driving wheel, is arranged one in drive system
Platform motor.
2. a kind of double eccentric block high-speed shaking boxes according to claim 1, which is characterized in that the eccentric block ecto-entad is set
It is equipped with voided layer and solid layer, solid layer is set to gear shaft periphery, and solid layer is equipped with fluid passage, and gear shaft is equipped with connection
The both ends in channel, fluid passage connect with voided layer and interface channel one end respectively, the external eccentric block of the other end of interface channel
Adjustment of weight system.
3. a kind of double eccentric block high-speed shaking boxes according to claim 2, which is characterized in that the global sections of the eccentric block
In semicircle shape, voided layer, solid layer and mounting hole are followed successively by by outer circumferential center of circle direction, connected by key with gear shaft at mounting hole
It connects.
4. a kind of double eccentric block high-speed shaking boxes according to claim 2, which is characterized in that the fluid passage passes through solid
Layer, interface channel are arranged along the axis direction of gear shaft, fluid passage and the perpendicular setting of interface channel；One end of gear shaft is set
There are hose coupling, interface channel one end to be connect with fluid passage, the interface channel other end is located on the end face of gear shaft and passes through
The external eccentric block adjustment of weight system of hose coupling.
5. a kind of double eccentric block high-speed shaking boxes according to claim 2, which is characterized in that fluid passage in the eccentric block
A diameter of 20~30mm, a diameter of 20~30mm of interface channel on gear shaft.
6. a kind of double eccentric block high-speed shaking boxes according to claim 2, which is characterized in that in the eccentric block, voided layer
Volume be entire eccentric block volume 1/3~5/7.
7. a kind of double eccentric block high-speed shaking boxes according to claim 1, which is characterized in that eccentric block adjustment of weight system
System includes liquid-filling pool, pump, first pipe, second pipe, third pipeline, the 4th pipeline, the 5th pipeline and the 6th pipeline, wherein
Third pipeline and the 4th pipeline parallel connection form eccentric block connecting tube group, and the end of third pipeline is connect with an eccentric block, and the 4th
The end of pipeline is connect with another eccentric block；
When needing to increase liquid in eccentric block, liquid-filling pool, first pipe, pump, second pipe and eccentric block connecting tube group are successively
Connection forms feed liquor circuit；
When needing to reduce liquid in eccentric block, eccentric block connecting tube group, the 5th pipeline, pump, the 6th pipeline and liquid-filling pool are successively
Connection forms drawing liquid circuit.
8. a kind of double eccentric block high-speed shaking boxes according to claim 7, which is characterized in that the first pipe is equipped with the
One switch valve, second pipe are equipped with second switch valve, and third pipeline is equipped with third switch valve, and the 4th pipeline is equipped with the 4th
Switch valve, the 5th pipeline are equipped with the 5th switch valve, and the 6th pipeline is equipped with the 6th switch valve；It is additionally provided with first on third pipeline
Solenoid valve is additionally provided with the second solenoid valve on the 4th pipeline.
9. a kind of double eccentric block high-speed shaking boxes according to claim 1, which is characterized in that the babinet include internal box,
Outer case and shake bar, internal box are set in outer case, and the inner bottom surface of outer case is equipped with sliding rail, and internal box is installed on sliding rail
On, one end of shake bar is fixedly connected by flange with internal box after outer case.
10. according to a kind of any one of claim 1~9 shake method that double eccentric block high-speed shaking boxes are realized, feature
It is, the shake power of shaking box is the centrifugal force that is generated by two eccentric blocks to provide, the weight of centrifugal force and eccentric block
It is directly proportional, it is square directly proportional to gear axle rotary speed；Shake frequency under the same conditions, the weight of eccentric block is bigger,
The centrifugal force of generation is bigger, and the shake power of shaking box is bigger, bigger to the amplitude of shaking box, therefore, passes through adjustment of weight
System changes the weight of voided layer in eccentric block, and then adjusts the shake power and amplitude of shaking box.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777555A (en) * | 2019-10-28 | 2020-02-11 | 华南理工大学 | Recoilless shaking device and amplitude adjusting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108411679B (en) | 2023-08-22 |
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