CN108411678B - Amplitude-adjustable high-speed shaking box device and amplitude adjusting method - Google Patents
Amplitude-adjustable high-speed shaking box device and amplitude adjusting method Download PDFInfo
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- CN108411678B CN108411678B CN201810370815.7A CN201810370815A CN108411678B CN 108411678 B CN108411678 B CN 108411678B CN 201810370815 A CN201810370815 A CN 201810370815A CN 108411678 B CN108411678 B CN 108411678B
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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
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Abstract
The invention discloses an amplitude-adjustable high-speed shaking box device and an amplitude adjusting method, wherein five groups of gears of the device are centered, each group of gears is provided with a gear shaft, and two gears of the gears are respectively arranged at two ends of the gear shaft; an eccentric block is arranged between two gears on the same gear shaft; the gear shaft of the lower left gear pair is externally connected with a gear motor and a driving motor at two ends, and a first clutch is further arranged at one end connected with the gear motor. The amplitude adjusting method is that a gear motor and a first clutch are utilized to drive a left lower gear pair to rotate, a carrier gear pair is utilized to drive other gear pairs to synchronously rotate, eccentric blocks in a left upper gear pair and a left lower gear pair rotate along with each other, eccentric blocks in a right upper gear pair and a right lower gear pair are fixed, and phase angles of the four eccentric blocks are changed to adjust the amplitude and the shaking force. The invention greatly reduces the complexity of the mechanical structure, lubrication system and control system.
Description
Technical Field
The invention relates to the technical field of pulping and papermaking, in particular to a high-speed shaking box device with adjustable amplitude and an amplitude adjusting method.
Background
The fiber flocculation is a main factor causing poor uniformity of paper, and the directional arrangement of the fibers of the long net part leads to high aspect ratio and transverse shrinkage of the paper, and in a net part shaking system, speed difference is generated between the upper layer and the lower layer of the pulp flow to shear and disturb, so that the fiber flocculation can be effectively overcome, the directional arrangement of the fibers is relieved, and the uniformity and the aspect ratio of the paper are improved. The common net part shaking system transmits vibration to a net table through a shaking box to drive slurry to transversely vibrate in a paper machine. However, the vibration frequency and the amplitude are limited, and the effects on the medium and high speed paper machine are not obvious. But also produces vibration in the vertical direction, and when severe, causes slurry jump. The mechanical abrasion is accelerated, and the fracture of a frame, a spring steel plate and the like and even the damage of a foundation are easily caused.
In order to meet the requirements of medium and high speed paper machines, paper workers research and develop high speed shaking boxes. The high-speed shaking box works according to the principle of physical gravity center, and the common gravity center is kept unchanged by adopting the mass of a plurality of parts moving in the same system; within the same transmission housing, the masses are arranged in such a way that the center of gravity can only be moved in the direction of the breast roll axis, if the vibrator masses are rotated, the breast roll responds with a reverse movement. The inertial forces in the motion system remain unchanged and are transferred only through the rocking levers. Thereby achieving vibration frequencies and amplitudes that are not attainable with conventional vibrators.
Four pairs of gears and four eccentric blocks are arranged in the shaking box, and the amplitude adjusting principle is to adjust the phase angles of the two pairs of eccentric blocks, so that the shaking force generated by the shaking box is adjusted, and the purpose of adjusting the shaking amplitude is achieved.
The mode of the current high-speed shaking box for adjusting the amplitude is divided into two modes, one mode is to adopt two servo motors and a set of servo control system, each servo motor is connected with a driving gear in two pairs of gears, and the positions of each pair of eccentric blocks are independently controlled and adjusted. The other is to adopt a servo motor, two transmission shafts which are connected with a driving gear of the shaking box. The servo motor is connected with one transmission shaft, the two transmission shafts are connected through a relatively complex gear device,
both of the above control modes have respective disadvantages, in the first mode, the mechanical structure is relatively simple, but the phase angle of the two pairs of eccentric blocks is steplessly adjusted in the running process so as to adjust the amplitude of the shaking box, each pair of eccentric blocks needs to have a phase sensor, and the phase of each pair of eccentric blocks needs to be controlled, which requires a very complex control system and has high investment and maintenance costs. In the second mode, only one servo motor is adopted, but a set of relatively complex transmission device and amplitude adjusting device connected with a transmission shaft of the servo motor are installed. In either way, the control system is very complex and the investment and maintenance costs are high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-speed shaking box device with adjustable amplitude, which changes the existing amplitude adjusting mode, can greatly reduce the complexity of a mechanical structure, a lubricating system and a control system, also reduces the production and maintenance cost of equipment and improves the stability of the system.
Another object of the present invention is to provide an amplitude adjusting method achieved by the above-described high-speed shaking box device.
The technical scheme of the invention is as follows: the high-speed shaking box device with the adjustable amplitude comprises a box body, five groups of gear pairs and four eccentric blocks, wherein the five groups of gear pairs and the four eccentric blocks are arranged in the box body, the five groups of gear pairs are respectively an upper left gear pair, a lower left gear pair, an upper right gear pair, a lower right gear pair and a carrier gear pair, each group of gear pairs is provided with a gear shaft, and two gears forming the gear pairs are respectively arranged at two ends of the gear shaft; an eccentric block is arranged between two gears positioned on the same gear shaft; the gear shaft two ends of the left lower gear pair are respectively externally connected with a gear motor and a driving motor, and one end connected with the gear motor is also provided with a first clutch.
The five gear pairs are arranged in the upper left gear pair, the lower left gear pair is arranged at the lower left side of the carrier gear pair, the upper right gear pair is arranged at the upper right side of the carrier gear pair, and the lower right gear pair is arranged at the lower right side of the carrier gear pair; the eccentric blocks arranged in the upper left gear centering and the eccentric blocks arranged in the lower left gear centering are symmetrically arranged, and the eccentric blocks arranged in the upper right gear centering and the eccentric blocks arranged in the lower right gear centering are symmetrically arranged to form a symmetrical relation of 180 degrees respectively. The outer periphery of the carrier gear pair is uniformly distributed with four groups of gear pairs, the carrier gear pair is not provided with eccentric blocks, and the other four groups of gear pairs are provided with eccentric blocks. The four eccentric blocks have good equal weight and equal moment of inertia, so that only horizontal force is generated during gear operation, and the forces in other directions are completely counteracted, thereby not adversely affecting the shaking box foundation and the breast roll device.
And the tooth profiles of the two gears in each gear pair are opposite.
The gear diameters of the five groups of gear pairs are smaller than those of the other four groups of gear pairs, and the thicknesses of the gears in the five groups of gear pairs are equal. The diameters, thicknesses and materials of gears in the left upper gear pair, the left lower gear pair, the right lower gear pair and the right upper gear pair are identical, and the materials of the carrier gear pair are identical to those of the four groups of gear pairs.
The five groups of gear pairs are meshed and connected with the upper left gear pair, the lower left gear pair, the upper right gear pair and the lower right gear pair; the left upper gear pair is also in meshed connection with the left lower gear pair, and the right upper gear pair is also in meshed connection with the right lower gear pair.
And the two ends of the eccentric blocks in the left upper gear pair and the left lower gear pair are fixedly connected with the corresponding gears through bolts, and the eccentric blocks in the right upper gear pair and the right lower gear pair are fixedly connected with the corresponding gear shafts. Namely: each eccentric block is fixed on a corresponding gear shaft through a fixed block and a key, meanwhile, two ends of the eccentric block in the upper left gear pair and the lower left gear pair are fixedly connected with corresponding gears through bolts, and the eccentric block in the upper right gear pair and the lower right gear pair is not fixedly connected with the gears, but is only fixedly connected with the corresponding gear shaft.
The box includes interior box, outer box and shake the pole, and interior box is located in the outer box, is equipped with the slide rail on the interior bottom surface of outer box, and interior box installs on the slide rail, shakes after the one end of pole passes the outer box, through flange and interior box fixed connection. The inner box body is arranged in the outer box body and supported by the sliding rail, the inner box body swings back and forth on the sliding rail of the outer box body, the maximum swing amplitude is 0-25 mm, the swing frequency is 0-500 revolutions per minute, and no stress is applied to other directions outside the horizontal direction. One end of the shaking rod is connected with the inner box body through a flange, the connecting part is positioned in the middle of the inner box body, and the other end of the shaking rod is connected with the breast roll shaft through a thrust bearing, so that the rotation of the breast roll is not hindered, shaking force can be transmitted to the breast roll, and shaking is generated on the net part.
The speed reducing motor and the driving motor are respectively arranged on the outer wall of the outer box body, and the first clutch is arranged on the inner side of the outer box body; the first clutch is an electromagnetic tooth clutch. One end of the centering gear shaft of the lower left gear is connected with a driving motor through a parallel coupler, the driving motor drives the lower left gear pair to operate, and all gears and eccentric blocks are driven to operate through engagement between the gear pairs to generate shaking force. The driving motor is a variable frequency motor, and a servo motor is not adopted, so that the control cost and the complexity of a control system are reduced. In the running process of the shaking box, the rotating speed of the motor changes from 0 to 500 revolutions per minute, so that the frequency of the shaking box is 0 to 500 revolutions per minute. The other end of the lower left gear centering gear shaft is connected with the gear motor through a first clutch. The speed reduction ratio of the gear motor is large, so that the left lower gear pair rotates slowly, and the rotation speed is 1-2 revolutions per minute. The first clutch is an electromagnetic tooth-shaped clutch, one end of the first clutch is connected with the speed reduction motor through a key, and the other end of the first clutch is fixedly connected with a gear shaft of the left lower gear pair through a key. The linkage relation between the gear motor and the centering gear shaft of the lower left gear can be disconnected or connected.
The gear shaft between the upper right gear pair and the inner box body is provided with a second clutch, and the gear shaft between the lower right gear pair and the inner box body is provided with a third clutch. Namely, the second clutch and the third clutch are respectively arranged on the corresponding gear shafts and are positioned between each gear in the upper right gear pair or the lower right gear pair and the inner box body.
The second clutch, the third clutch, the fourth clutch and the fifth clutch are all electromagnetic tooth-shaped clutches. A fourth clutch is arranged at the joint of one end of the gear shaft of the upper right gear pair and the outer box body, and a fifth clutch is arranged at the joint of one end of the gear shaft of the lower right gear pair and the outer box body.
The second clutch, the third clutch, the fourth clutch and the fifth clutch are all electromagnetic tooth-shaped clutches, one end of the second clutch is connected with the gear in the right upper gear pair through a bolt, and the other end of the second clutch is fixed with the gear shaft in the right upper gear pair through a key, so that the two gears can not only operate together with the gear shaft, but also can operate independently by disconnecting the linkage relation between the two gears and the corresponding gear shaft through the clutches. One end of the third clutch is connected with the gear in the right lower gear pair through a bolt, and the other end of the third clutch is fixed with the gear shaft in the right lower gear pair through a key, so that the two gears can not only operate together with the gear shaft, but also independently operate by disconnecting the linkage relation between the two gears and the corresponding gear shafts through the clutch. A clutch (namely, the fourth clutch and the fifth clutch) is also arranged between the gear shafts of the upper right gear pair and the lower right gear pair and the outer box body, one end of the clutch is fixed on the outer box body through a bolt, and the other end of the clutch is fixed with the shaft through a key, so that the shaft can be fixed during amplitude adjustment.
The two ends of the eccentric blocks in the left upper gear pair and the left lower gear pair are fixedly connected with the corresponding gears through bolts, and are fixedly connected with the corresponding gear shafts through keys;
and in the five gear pairs, each gear in the upper left gear pair, the lower left gear pair and the carrier gear pair is fixed with the corresponding gear shaft through a key, and each gear in the upper right gear pair and the lower right gear pair is connected with the corresponding gear shaft through a bearing.
In each gear pair, each gear in the left upper gear pair and the left lower gear pair is fixed on a corresponding gear shaft through a key, and each gear in the right upper gear pair and the right lower gear pair is connected with the corresponding gear shaft through a rolling bearing, so that each gear in the right upper gear pair and the right lower gear pair can rotate around the corresponding gear shaft. Each gear in the carrier gear pair is fixed on a corresponding gear shaft through a key, and the gear shaft is arranged on the inner box body through a bearing.
The amplitude adjusting method realized by the high-speed shaking box device with adjustable amplitude comprises the following steps: when the amplitude needs to be regulated, the gear motor and the first clutch are utilized to drive the left lower gear pair to rotate, and the carrier gear pair is utilized to drive the left upper gear pair, the right upper gear pair and the right lower gear pair to synchronously rotate, wherein the eccentric blocks in the left upper gear pair and the left lower gear pair rotate along with the rotation, and the eccentric blocks in the right upper gear pair and the right lower gear pair are fixed, so that the amplitude of the shaking force and the amplitude are regulated by changing the phase angles of the four eccentric blocks. The eccentric force generated by the operation of the eccentric blocks constitutes the shaking force of the shaking box, and the resultant force generated by the four eccentric blocks is the shaking force generated by the shaking box. The amplitude of the shaking force can be changed by adjusting the phase angles of the two pairs of eccentric blocks, so that the amplitude of the shaking is adjusted.
The specific working principle of the high-speed shaking box device with the adjustable amplitude and the amplitude adjusting method is as follows:
the inner box body is arranged on a sliding rail in the outer box body, the driving motor drives the gear pairs and the eccentric blocks to run to generate shaking force to horizontally swing, and the driving motor controls the rotation speed of the gear pairs so as to adjust the shaking frequency of the shaking box.
Five sets of gear pairs are installed in the inner box body, each set of gear pair is installed on the same gear shaft, the tooth shapes of two gears on the same gear shaft are opposite, meanwhile, except for the gap bridge gear, eccentric blocks are installed between two gears of the other four sets of gear pairs, the eccentric blocks in the upper gear pair and the lower gear pair are completely symmetrically installed to form a symmetrical relation of 180 degrees, all the eccentric blocks have good equal weight and equal rotational inertia, so that only horizontal force is generated during gear operation, and the forces in other directions are completely counteracted, and thus adverse effects on a shaking box foundation and a breast roll device are avoided.
Meanwhile, the left lower gear pair is meshed with the left upper gear pair, the right upper gear pair is meshed with the right lower gear pair, and the carrier gear is meshed with the other four pairs of gears. The second clutch and the third clutch are respectively arranged on the gear shafts between the upper right gear pair, the lower right gear pair and the inner box body, and the linkage relation between the second clutch and the third clutch and the respective gear shafts can be disconnected through the second clutch and the third clutch so as to independently operate.
A fourth clutch and a fifth clutch are arranged between the gear shafts of the upper right gear pair and the lower right gear pair and the outer box body, and the shafts can be fixed during amplitude adjustment.
When the amplitude is regulated, the driving motor is turned off, the second clutch and the third clutch are powered off, the linkage relation between the upper right gear pair and the lower right gear pair and the respective gear shafts thereof is disconnected, and the fourth clutch and the fifth clutch connected with the outer box body are powered on, so that the shafts of the upper right gear pair and the lower right gear pair are fixed on the outer box body.
The first clutch connected with the gear motor is electrified, and the gear motor is linked with the gear shaft of the left lower gear pair. And starting a gear motor, rotating the eccentric blocks on the upper left gear pair and the lower left gear pair according to actual needs, and changing the phase angles of the four eccentric blocks, so that the amplitude of shaking is regulated by regulating the magnitude of shaking force.
Because the meshing relationship of the carrier gear, when the gear motor rotates, the upper right gear pair and the lower right gear pair also rotate, but because the gears in the upper right gear pair and the lower right gear pair are not fixedly connected with the eccentric blocks and are connected with the corresponding gear shafts only through bearings, the rotation of the upper right gear pair and the lower right gear pair can not cause the eccentric blocks to rotate along with the rotation, so that the phase angles of the four eccentric blocks can not be adjusted.
After the adjustment is completed, the gear motor is closed, the first clutch connected with the gear motor is powered off, and the gear motor is disconnected with the left lower gear shaft; the fourth clutch and the fifth clutch which are connected with the outer box body are powered off, and the connection between the gear shafts of the upper right gear pair and the lower right gear pair and the outer box body is disconnected; the second clutch and the third clutch are electrified, so that the upper right gear pair and the lower right gear pair are fixedly linked with the corresponding gear shafts, the driving motor is started, and the shaking box starts to work normally.
Compared with the prior art, the invention has the following beneficial effects:
the high-speed shaking box device forms a driving device through five groups of gear pairs, and can realize the transmission of shaking force by adopting one driving motor, so that the investment cost and maintenance cost of equipment can be greatly reduced.
The high-speed shaking box device controls shaking frequency through the rotating speed of the driving motor, adjusts the amplitude of the shaking box through the phase angle between the eccentric blocks regulated by the reducing motor, changes the existing amplitude regulating mode, has very simple control mode, can greatly reduce the complexity of a mechanical structure, a lubricating system and a control system, also reduces the production and maintenance cost of equipment, and improves the stability of the system.
In the high-speed shaking box device, the five groups of gear pairs are all in gear meshing operation, so that the rotation speeds of the gears are completely the same, the power transmission precision is high, and the amplitude adjustment precision is also high.
Drawings
Fig. 1 is a schematic structural view of the high-speed shaking box device.
Fig. 2 is a cross-sectional view A-A of fig. 1.
Fig. 3 is a sectional view of B-B of fig. 1.
Fig. 4 is a cross-sectional view of fig. 1 taken along line C-C.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.
Examples
The embodiment of the high-speed shaking box device with adjustable amplitude comprises a box body, five groups of gear pairs and four eccentric blocks, wherein the five groups of gear pairs and the four eccentric blocks are all arranged in the box body, and in addition, the device is further provided with a base, a lubricating system and other components.
Wherein, the box includes interior box 1, outer box 2 and shakes the pole 3, and in the outer box was located to interior box, be equipped with slide rail (not shown in the figure) on the interior bottom surface of outer box, interior box was installed on the slide rail, shakes after the one end of pole passed outer box, through flange and interior box fixed connection. The inner box body is arranged in the outer box body and supported by the sliding rail, the inner box body swings back and forth on the sliding rail of the outer box body, the maximum swing amplitude is 0-25 mm, the swing frequency is 0-500 revolutions per minute, and no stress is applied to other directions outside the horizontal direction. One end of the shaking rod is connected with the inner box body through a flange, the connecting part is positioned in the middle of the inner box body, and the other end of the shaking rod is connected with the breast roll shaft through a thrust bearing, so that the rotation of the breast roll is not hindered, shaking force can be transmitted to the breast roll, and shaking is generated on the net part.
Five gear pairs are respectively an upper left gear pair 4, a lower left gear pair 5, an upper right gear pair 6, a lower right gear pair 7 and a carrier gear pair 8, each gear pair is provided with a gear shaft, and two gears forming the gear pair are respectively arranged at two ends of the gear shaft; an eccentric block is arranged between two gears positioned on the same gear shaft; the gear shaft two ends of the left lower gear pair are respectively externally connected with a gear motor and a driving motor, and one end connected with the gear motor is also provided with a first clutch.
Five sets of gear pairs, an upper left gear pair is arranged at the left upper part of the carrier gear pair, a lower left gear pair is arranged at the left lower part of the carrier gear pair, an upper right gear pair is arranged at the right upper part of the carrier gear pair, and a lower right gear pair is arranged at the right lower part of the carrier gear pair; the eccentric blocks arranged in the upper left gear centering and the eccentric blocks arranged in the lower left gear centering are symmetrically arranged, and the eccentric blocks arranged in the upper right gear centering and the eccentric blocks arranged in the lower right gear centering are symmetrically arranged to form a symmetrical relation of 180 degrees respectively. The outer periphery of the carrier gear pair is uniformly distributed with four groups of gear pairs, the carrier gear pair is not provided with eccentric blocks, and the other four groups of gear pairs are provided with eccentric blocks. The four eccentric blocks have good equal weight and equal moment of inertia, so that only horizontal force is generated during gear operation, and the forces in other directions are completely counteracted, thereby not adversely affecting the shaking box foundation and the breast roll device.
Five sets of gear pairs, the two gears in each set of gear pairs are opposite in tooth form.
As shown in fig. 1 or 3, the gear diameters of the gear pairs of the carrier gear pair are smaller than those of the other four gear pairs, and the thicknesses of the gears in the five gear pairs are equal. The diameters, thicknesses and materials of gears in the left upper gear pair, the left lower gear pair, the right lower gear pair and the right upper gear pair are identical, and the materials of the carrier gear pair are identical to those of the four groups of gear pairs.
The five groups of gear pairs are respectively connected with the upper left gear pair, the lower left gear pair, the upper right gear pair and the lower right gear pair in a meshed manner; the left upper gear pair is also in meshed connection with the left lower gear pair, and the right upper gear pair is also in meshed connection with the right lower gear pair.
Five sets of gear pairs are shown in fig. 2, two ends of the eccentric blocks 9 in the upper left gear pair and the lower left gear pair are fixedly connected with corresponding gears through bolts, and the eccentric blocks 9 in the upper right gear pair and the lower right gear pair are fixedly connected with corresponding gear shafts as shown in fig. 4. Namely: each eccentric block is fixed on a corresponding gear shaft through a fixed block and a key, meanwhile, two ends of the eccentric block in the upper left gear pair and the lower left gear pair are fixedly connected with corresponding gears through bolts, and the eccentric block in the upper right gear pair and the lower right gear pair is not fixedly connected with the gears, but is only fixedly connected with the corresponding gear shaft.
As shown in fig. 2, the gear motor 10 and the driving motor 11 are respectively provided on the outer wall of the outer case, and the first clutch 12 is provided inside the outer case. One end of the centering gear shaft of the lower left gear is connected with a driving motor through a parallel coupler, the driving motor drives the lower left gear pair to operate, and all gears and eccentric blocks are driven to operate through engagement between the gear pairs to generate shaking force. The driving motor is a variable frequency motor, and a servo motor is not adopted, so that the control cost and the complexity of a control system are reduced. In the running process of the shaking box, the rotating speed of the motor changes from 0 to 500 revolutions per minute, so that the frequency of the shaking box is 0 to 500 revolutions per minute. The other end of the lower left gear centering gear shaft is connected with the gear motor through a first clutch. The speed reduction ratio of the gear motor is large, so that the left lower gear pair rotates slowly, and the rotation speed is 1-2 revolutions per minute. The first clutch is an electromagnetic tooth-shaped clutch, one end of the first clutch is connected with the speed reduction motor through a key, and the other end of the first clutch is fixedly connected with a gear shaft of the left lower gear pair through a key. The linkage relation between the gear motor and the centering gear shaft of the lower left gear can be disconnected or connected.
As shown in fig. 4, the gear shafts between the upper right gear pair and the inner case are respectively provided with a second clutch 13, and the gear shafts between the lower right gear pair and the inner case are respectively provided with a third clutch 14. A fourth clutch 15 is arranged at the joint of one end of the gear shaft of the upper right gear pair and the outer box body, and a fifth clutch 16 is arranged at the joint of one end of the gear shaft of the lower right gear pair and the outer box body.
The second clutch, the third clutch, the fourth clutch and the fifth clutch are all electromagnetic tooth-shaped clutches, one end of the second clutch is connected with the gear in the right upper gear pair through a bolt, and the other end of the second clutch is fixed with the gear shaft in the right upper gear pair through a key, so that the two gears can not only operate together with the gear shaft, but also can operate independently by disconnecting the linkage relation between the two gears and the corresponding gear shaft through the clutches. One end of the third clutch is connected with the gear in the right lower gear pair through a bolt, and the other end of the third clutch is fixed with the gear shaft in the right lower gear pair through a key, so that the two gears can not only operate together with the gear shaft, but also independently operate by disconnecting the linkage relation between the two gears and the corresponding gear shafts through the clutch. A clutch (namely, the fourth clutch and the fifth clutch) is also arranged between the gear shafts of the upper right gear pair and the lower right gear pair and the outer box body, one end of the clutch is fixed on the outer box body through a bolt, and the other end of the clutch is fixed with the shaft through a key, so that the shaft can be fixed during amplitude adjustment.
In each gear pair, each gear in the left upper gear pair and the left lower gear pair is fixed on a corresponding gear shaft through a key, and each gear in the right upper gear pair and the right lower gear pair is connected with the corresponding gear shaft through a rolling bearing, so that each gear in the right upper gear pair and the right lower gear pair can rotate around the corresponding gear shaft. Each gear in the carrier gear pair is fixed on a corresponding gear shaft through a key, and the gear shaft is arranged on the inner box body through a bearing.
The amplitude adjusting method realized by the high-speed shaking box device with adjustable amplitude comprises the following steps: when the amplitude needs to be regulated, the gear motor and the first clutch are utilized to drive the left lower gear pair to rotate, and the carrier gear pair is utilized to drive the left upper gear pair, the right upper gear pair and the right lower gear pair to synchronously rotate, wherein the eccentric blocks in the left upper gear pair and the left lower gear pair rotate along with the rotation, and the eccentric blocks in the right upper gear pair and the right lower gear pair are fixed, so that the amplitude of the shaking force and the amplitude are regulated by changing the phase angles of the four eccentric blocks. The eccentric force generated by the operation of the eccentric blocks constitutes the shaking force of the shaking box, and the resultant force generated by the four eccentric blocks is the shaking force generated by the shaking box. The amplitude of the shaking force can be changed by adjusting the phase angles of the two pairs of eccentric blocks, so that the amplitude of the shaking is adjusted.
The specific working principle of the high-speed shaking box device with the adjustable amplitude and the amplitude adjusting method is as follows:
the inner box body is arranged on a sliding rail in the outer box body, the driving motor drives the gear pairs and the eccentric blocks to run to generate shaking force to horizontally swing, and the driving motor controls the rotation speed of the gear pairs so as to adjust the shaking frequency of the shaking box.
Five sets of gear pairs are installed in the inner box body, each set of gear pair is installed on the same gear shaft, the tooth shapes of two gears on the same gear shaft are opposite, meanwhile, except for the gap bridge gear, eccentric blocks are installed between two gears of the other four sets of gear pairs, the eccentric blocks in the upper gear pair and the lower gear pair are completely symmetrically installed to form a symmetrical relation of 180 degrees, all the eccentric blocks have good equal weight and equal rotational inertia, so that only horizontal force is generated during gear operation, and the forces in other directions are completely counteracted, and thus adverse effects on a shaking box foundation and a breast roll device are avoided.
Meanwhile, the left lower gear pair is meshed with the left upper gear pair, the right upper gear pair is meshed with the right lower gear pair, and the carrier gear is meshed with the other four pairs of gears. The second clutch and the third clutch are respectively arranged on the gear shafts between the upper right gear pair, the lower right gear pair and the inner box body, and the linkage relation between the second clutch and the third clutch and the respective gear shafts can be disconnected through the second clutch and the third clutch so as to independently operate.
A fourth clutch and a fifth clutch are arranged between the gear shafts of the upper right gear pair and the lower right gear pair and the outer box body, and the shafts can be fixed during amplitude adjustment.
When the amplitude is regulated, the driving motor is turned off, the second clutch and the third clutch are powered off, the linkage relation between the upper right gear pair and the lower right gear pair and the respective gear shafts thereof is disconnected, and the fourth clutch and the fifth clutch connected with the outer box body are powered on, so that the shafts of the upper right gear pair and the lower right gear pair are fixed on the outer box body.
The first clutch connected with the gear motor is electrified, and the gear motor is linked with the gear shaft of the left lower gear pair. And starting a gear motor, rotating the eccentric blocks on the upper left gear pair and the lower left gear pair according to actual needs, and changing the phase angles of the four eccentric blocks, so that the amplitude of shaking is regulated by regulating the magnitude of shaking force.
Because the meshing relationship of the carrier gear, when the gear motor rotates, the upper right gear pair and the lower right gear pair also rotate, but because the gears in the upper right gear pair and the lower right gear pair are not fixedly connected with the eccentric blocks and are connected with the corresponding gear shafts only through bearings, the rotation of the upper right gear pair and the lower right gear pair can not cause the eccentric blocks to rotate along with the rotation, so that the phase angles of the four eccentric blocks can not be adjusted.
After the adjustment is completed, the gear motor is closed, the first clutch connected with the gear motor is powered off, and the gear motor is disconnected with the left lower gear shaft; the fourth clutch and the fifth clutch which are connected with the outer box body are powered off, and the connection between the gear shafts of the upper right gear pair and the lower right gear pair and the outer box body is disconnected; the second clutch and the third clutch are electrified, so that the upper right gear pair and the lower right gear pair are fixedly linked with the corresponding gear shafts, the driving motor is started, and the shaking box starts to work normally.
As described above, the present invention can be better realized, and the above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications are intended to be covered by the scope of the appended claims.
Claims (8)
1. The high-speed shaking box device is characterized by comprising a box body, five groups of gear pairs and four eccentric blocks, wherein the five groups of gear pairs and the four eccentric blocks are arranged in the box body, the five groups of gear pairs are respectively an upper left gear pair, a lower left gear pair, an upper right gear pair, a lower right gear pair and a carrier gear pair, each group of gear pairs is provided with a gear shaft, and two gears forming the gear pairs are respectively arranged at two ends of the gear shaft; an eccentric block is arranged between two gears positioned on the same gear shaft; the two ends of the gear shaft of the left lower gear pair are respectively externally connected with a gear motor and a driving motor, and a first clutch is arranged at one end connected with the gear motor; the box body comprises an inner box body, an outer box body and a shaking rod, wherein the inner box body is arranged in the outer box body, a sliding rail is arranged on the inner bottom surface of the outer box body, the inner box body is arranged on the sliding rail, one end of the shaking rod penetrates through the outer box body and then is fixedly connected with the inner box body through a flange, and the connecting part is positioned in the middle of the inner box body; the speed reducing motor and the driving motor are respectively arranged on the outer wall of the outer box body, and the first clutch is arranged on the inner side of the outer box body; the first clutch is an electromagnetic tooth clutch.
2. The vibration box device with adjustable vibration amplitude according to claim 1, wherein the five gear pairs are arranged in the upper left gear pair, the lower left gear pair is arranged in the lower left gear pair, the upper right gear pair is arranged in the upper right gear pair, and the lower right gear pair is arranged in the lower right gear pair; the eccentric blocks arranged in the upper left gear centering and the eccentric blocks arranged in the lower left gear centering are symmetrically arranged, and the eccentric blocks arranged in the upper right gear centering and the eccentric blocks arranged in the lower right gear centering are symmetrically arranged.
3. The amplitude adjustable high-speed shaking box device according to claim 1, wherein the five gear pairs are opposite in tooth form.
4. The amplitude-adjustable high-speed shaking box device according to claim 1, wherein the gear diameters of the five gear pairs are smaller than those of the other four gear pairs, and the thicknesses of the gears in the five gear pairs are equal.
5. The high-speed shaking box device with adjustable amplitude according to claim 1, wherein the five gear pairs are meshed with the carrier gear pair; the left upper gear pair is also in meshed connection with the left lower gear pair, and the right upper gear pair is also in meshed connection with the right lower gear pair.
6. The high-speed shaking box device with adjustable amplitude according to claim 1, wherein a second clutch is arranged on a gear shaft between the upper right gear pair and the inner box body, and a third clutch is arranged on a gear shaft between the lower right gear pair and the inner box body;
a fourth clutch is arranged at the joint of one end of the gear shaft of the upper right gear pair and the outer box body, and a fifth clutch is arranged at the joint of one end of the gear shaft of the lower right gear pair and the outer box body;
the second clutch, the third clutch, the fourth clutch and the fifth clutch are all electromagnetic tooth-shaped clutches.
7. The vibration box device with adjustable vibration amplitude according to claim 1, wherein two ends of eccentric blocks in the five gear pairs, namely an upper left gear pair and a lower left gear pair, are fixedly connected with corresponding gears through bolts, and are fixedly connected with corresponding gear shafts through keys, and eccentric blocks in the upper right gear pair and the lower right gear pair are only fixedly connected with corresponding gear shafts;
and in the five gear pairs, each gear in the upper left gear pair, the lower left gear pair and the carrier gear pair is fixed with the corresponding gear shaft through a key, and each gear in the upper right gear pair and the lower right gear pair is connected with the corresponding gear shaft through a bearing.
8. The amplitude adjusting method implemented by the high-speed shaking box device with adjustable amplitude according to any one of claims 1 to 7, wherein when the amplitude is required to be adjusted, a gear motor and a first clutch are utilized to drive a left lower gear pair to rotate, a gap gear pair is utilized to drive an upper left gear pair, an upper right gear pair and a lower right gear pair to rotate synchronously, eccentric blocks in the upper left gear pair and the lower left gear pair rotate along with each other, and eccentric blocks in the upper right gear pair and the lower right gear pair are fixed, so that the amplitude and the amplitude of shaking force are adjusted by changing the phase angles of the four eccentric blocks.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810370815.7A CN108411678B (en) | 2018-04-24 | 2018-04-24 | Amplitude-adjustable high-speed shaking box device and amplitude adjusting method |
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| CN201810370815.7A CN108411678B (en) | 2018-04-24 | 2018-04-24 | Amplitude-adjustable high-speed shaking box device and amplitude adjusting method |
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| CN108411678A CN108411678A (en) | 2018-08-17 |
| CN108411678B true CN108411678B (en) | 2023-06-16 |
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| CN109974832B (en) * | 2019-04-03 | 2021-04-02 | 浙江华章科技有限公司 | Algorithm for amplitude of high-speed shaking system |
| CN110777555A (en) * | 2019-10-28 | 2020-02-11 | 华南理工大学 | Recoilless shaking device and amplitude adjusting method |
| CN110777556A (en) * | 2019-10-28 | 2020-02-11 | 华南理工大学 | Breast roll shaking device and amplitude adjusting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19704730A1 (en) * | 1997-02-07 | 1998-08-13 | Voith Sulzer Papiermasch Gmbh | Shaker |
| FI117293B (en) * | 2003-12-18 | 2006-08-31 | Metso Paper Inc | Devices for moving the drum in a paper machine |
| DE102004017759A1 (en) * | 2004-04-10 | 2005-10-27 | Voith Paper Patent Gmbh | Fourdrinier section of a web production machine, for paper or cardboard or tissue, has a rotating roller with outer studs and inner eccentric drives to oscillate the fourdrinier in different directions on the web plane |
| DE102010039198A1 (en) * | 2010-08-11 | 2012-02-16 | Voith Patent Gmbh | Vibration device for moving roller i.e. breast roller, to and fro along axis of machine e.g. fourdrinier paper machine, which is utilized for producing fibrous material web e.g. paper web, has interlockings that are provided under degrees |
| CN202139502U (en) * | 2011-06-23 | 2012-02-08 | 华南理工大学 | High-speed shaking vibration box |
| CN103372915B (en) * | 2012-04-25 | 2015-12-09 | 刘靖 | A kind of self-locking strand pulling machine |
| CN104942601A (en) * | 2015-06-09 | 2015-09-30 | 安庆联控机电科技发展有限公司 | Main transmission device of reaming and honing machine |
| CN207210830U (en) * | 2017-05-31 | 2018-04-10 | 浙江哲丰新材料有限公司 | A kind of new shaking apparatus of fourdrinier machine |
| CN208293304U (en) * | 2018-04-24 | 2018-12-28 | 华南理工大学 | A kind of high-speed shaking case apparatus of adjustable amplitude |
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