CN108411678A - A kind of the high-speed shaking case apparatus and amplitude adjusting method of adjustable amplitude - Google Patents

Abstract

The present invention discloses a kind of the high-speed shaking case apparatus and amplitude adjusting method of adjustable amplitude, and in five groups of gear mesh of device, every group of gear mesh is set there are one gear shaft, and two gears of gear mesh are respectively arranged on gear shaft both ends；In upper left gear mesh, lower-left gear mesh, upper right gear mesh and bottom right gear mesh, set between two gears on same gear shaft there are one eccentric block；The external decelerating motor in gear shaft both ends and driving motor of lower-left gear mesh, the one end being connect with decelerating motor is additionally provided with first clutch.Its amplitude adjusting method is to drive lower-left gear mesh to rotate using decelerating motor and first clutch, using carrier gear to driving other gear mesh also to rotate synchronously, eccentric block in upper left gear mesh and lower-left gear mesh follows rotation, eccentric block in upper right gear mesh and bottom right gear mesh is fixed, changes the phase angle of four eccentric blocks to adjust shake power size and amplitude size.The present invention substantially reduces the complexity of mechanical structure, lubricating system and control system.

Description

A high-speed shaking box device with adjustable amplitude and amplitude adjustment method

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 a method for adjusting the amplitude.

Background technique

Fiber flocculation is the main factor causing poor paper evenness, and the directional arrangement of fibers in the fourdrinier wire section leads to high aspect ratio and transverse shrinkage of the paper. Poor, shearing and disturbance can effectively overcome fiber flocculation, relieve fiber orientation, and improve evenness and paper aspect ratio. Ordinary wire shaking system transmits the vibration to the wire table through the shaking box, which drives the pulp to vibrate in the transverse direction of the paper machine. However, its vibration frequency and amplitude are limited, and its effect on medium and high-speed paper machines is not obvious. Moreover, vibrations are generated in the vertical direction, which can cause jumping in severe cases. Accelerated mechanical wear can easily cause breakage of the frame, spring steel plates, etc., or even damage to the foundation.

In order to meet the requirements of medium and high-speed paper machines, papermakers have researched and developed high-speed shaking boxes. The high-speed shaking box works according to the principle of the physical center of gravity, using several parts of mass moving in the same system to keep their common center of gravity unchanged; in the same transmission case, the mass is arranged in such a way that the center of gravity can only be along the axis of the breast roller To move, if the vibrator mass turns, the breast roll responds with a reverse motion. The inertial forces in the kinematic system remain constant and are only transmitted through the shaking rod. So as to achieve the vibration frequency and amplitude that cannot be achieved by ordinary vibrators.

There are four pairs of gears and four eccentric blocks installed in the shaking box. The amplitude adjustment principle is to adjust the phase angle of the two pairs of eccentric blocks, thereby adjusting the magnitude of the shaking force generated by the shaking box to achieve the purpose of adjusting the shaking amplitude.

There are two ways to adjust the amplitude of the existing high-speed shaking box. One is to use two servo motors and a set of servo control system. Each servo motor is connected to the driving gear of the two pairs of gears, and each pair of gears is independently controlled and adjusted The position of the eccentric block. Another kind is to adopt a servo motor, two transmission shafts, and the two transmission shafts are connected with the driving gear of the shaking box. The servo motor is connected to one of the transmission shafts, and the two transmission shafts are connected through a more complicated gear device.

Both of the above two control methods have their own shortcomings. In the first method, the mechanical structure is relatively simple, but the phase angle of the two pairs of eccentric blocks is adjusted steplessly during operation to adjust the amplitude of the shaking box. Each pair of eccentric blocks There must be a phase sensor, and at the same time, the phase of each pair of eccentric weights needs to be controlled, which requires a very complicated control system with high investment and maintenance costs. Though the second kind of mode only adopts a servomotor, a set of transmission device and the amplitude adjustment device that are connected with the servomotor drive shaft are more complicated are installed. So no matter which way, its control system is very complicated, and the investment and maintenance costs are very high.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a high-speed shaking box device with adjustable amplitude, which changes the existing amplitude adjustment method and can greatly reduce the complexity of the mechanical structure, lubrication system and control system , It also reduces the production and maintenance costs of the equipment and improves the stability of the system.

Another object of the present invention is to provide a vibration amplitude adjustment method realized by the above-mentioned high-speed shaking box device.

The technical solution of the present invention is: a high-speed shaking box device with adjustable amplitude, including a box body, five sets of gear pairs and four eccentric blocks, five sets of gear pairs and four eccentric blocks are all arranged in the box, five sets of The gear pairs are respectively the upper left gear pair, the lower left gear pair, the upper right gear pair, the lower right gear pair and the bridge gear pair. Each gear pair is provided with a gear shaft, and the two gears forming the gear pair are arranged on the gear shaft respectively. Both ends; the upper left gear pair, the lower left gear pair, the upper right gear pair and the lower right gear pair are centered, and an eccentric block is arranged between the two gears on the same gear shaft; the two ends of the gear shaft of the lower left gear pair are respectively connected with external reduction motors and a drive motor, and a first clutch is also provided at one end connected with the reduction motor.

Among the five sets of gear pairs, the upper left gear pair is arranged at the upper left of the bridge gear pair, the lower left gear pair is arranged at the lower left side of the bridge gear pair, the upper right gear pair is arranged at the upper right of the bridge gear pair, and the lower right gear pair is arranged at the upper left of the bridge gear pair. The pair is installed on the lower right of the bridge gear pair; the eccentric block set in the upper left gear pair and the eccentric block set in the lower left gear pair are installed symmetrically, and the eccentric block set in the upper right gear pair and the lower right gear pair are installed symmetrically. The eccentric blocks are installed symmetrically to form a symmetrical relationship of 180 degrees. That is, the outer circumference of the bridge gear pair is evenly distributed on the other four sets of gear pairs, no eccentric block is installed on the bridge gear pair, and eccentric blocks are installed on the other four sets of gear pairs. The four eccentric blocks have good equal weight and equal moments of inertia, so that when the gear is running, only the force in the horizontal direction is generated, while the forces in other directions are completely offset, so that it will not have adverse effects on the foundation of the shaking box and the breast roller device.

Among the five sets of gear pairs, the tooth profiles of the two gears in each set of gear pairs are opposite.

Among the five sets of gear pairs, the gear diameters of the bridge gear pairs are smaller than those of the other four sets of gear pairs, and the thickness of each gear in the five sets of gear pairs is equal. The upper left gear pair, the lower left gear pair, the lower right gear pair and the upper right gear pair have the same diameter, thickness and material of each gear, and the material of the bridge gear pair is also the same as these four groups of gear pairs.

Among the five groups of gear pairs, the upper left gear pair, the lower left gear pair, the upper right gear pair and the lower right gear pair are all meshed with the bridge gear pair; the upper left gear pair is also meshed with the lower left gear pair, and the upper right gear pair is connected with the lower right The gear pairs are also meshed.

In the five sets of gear pairs, the two ends of the eccentric blocks in the upper left gear pair and the lower left gear pair are fixedly connected to the corresponding gears through bolts, and the eccentric blocks in the upper right gear pair and the lower right gear pair are fixedly connected to the corresponding gear shafts . That is: each eccentric block is fixed on the corresponding gear shaft through a fixed block and a key. At the same time, the two ends of the eccentric block in the upper left gear pair and the lower left gear pair are also fixedly connected with the corresponding gears through bolts, while the upper right gear pair and the right The eccentric block in the lower gear pair is not fixedly connected with the gear, but only fixedly connected with the corresponding gear shaft.

The box body includes an inner box body, an outer box body and a shaking rod, the inner box body is arranged in the outer box body, a slide rail is arranged on the inner bottom surface of the outer box body, the inner box body is installed on the slide rail, and shakes After passing through the outer box, one end of the rod is fixedly connected with the inner box through the flange. The inner box is installed in the outer box and supported by slide rails. The inner box swings back and forth on the slide rails of the outer box. The maximum swing amplitude is 0-25mm, and the shaking frequency is 0-500 rpm, except for the horizontal direction. There is no force in the direction. One end of the shaking rod is connected to the inner box through a flange, and the connection part is located in the middle of the inner box, and the other end is connected to the breast roller shaft through a thrust bearing, so that it does not hinder the rotation of the breast roller and can transmit the shaking force to the Breast roll, which shakes the wire section.

The reduction motor and the drive motor are respectively arranged on the outer wall of the outer box, and the first clutch is arranged inside the outer box; the first clutch is an electromagnetic tooth clutch. Among them, one end of the gear shaft of the lower left gear pair is connected to the driving motor through a parallel coupling, and the driving motor drives the lower left gear pair to rotate, and then drives all the gears and eccentric blocks to rotate through the meshing between the gear pairs to generate shaking force. The drive motor is a variable frequency motor, without using a servo motor, thereby reducing the cost of control and the complexity of the control system. During the operation of the shaking box, the motor speed 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 centering gear shaft of the lower left gear is connected with the reduction motor through the first clutch. The deceleration ratio of the reduction motor is relatively large, so that the lower left gear pair rotates at a slow speed, and the rotation speed is 1 to 2 rev/min. The first clutch is an electromagnetic toothed clutch, and one end of the first clutch is connected with the reduction motor by a key, and the other end is connected and fixed with the gear shaft of the left lower gear pair by a key. The interlocking relationship between the reduction motor and the centering gear shaft of the lower left gear can be disconnected or connected.

A second clutch is provided on the gear shaft between the upper right gear pair and the inner case, and a third clutch is provided on the gear shaft between the lower right gear pair and the inner case. That is, the second clutch and the third clutch are respectively arranged on their corresponding gear shafts, between the gears in the upper right gear pair or the lower right gear pair and the inner case.

The second clutch, the third clutch, the fourth clutch and the fifth clutch are all electromagnetic tooth clutches. A fourth clutch is provided at the junction of one end of the gear shaft of the upper right gear pair and the outer casing, and a fifth clutch is arranged at the junction of one end of the gear shaft of the lower right gear pair and the outer casing.

The second clutch, the third clutch, the fourth clutch and the fifth clutch are all electromagnetic gear clutches, one end of the second clutch is connected with the gear in the upper right gear alignment through bolts, and the other end is connected with the gear shaft in the upper right gear alignment through a key Fixed, so that the two gears can run together with the gear shaft, and can also run independently by disconnecting the linkage relationship between the two gears and the corresponding gear shaft through the clutch. One end of the third clutch is connected to the gear in the lower right gear pair through bolts, and the other end is fixed to the gear shaft in the lower right gear pair through a key, so that the two gears can run together with the gear shaft or can be disconnected through the clutch. The linkage relationship between the two gears and the corresponding gear shafts can be operated independently. A clutch (that is, the fourth clutch and the fifth clutch) is also installed between the gear shafts of the upper right gear pair and the lower right gear pair and the outer casing. One end of the clutch is fixed on the outer casing by bolts, and the other end is connected with The shaft is fixed so that the shaft can be held stationary during amplitude adjustment.

Five sets of gear pairs, the two ends of the eccentric block in the upper left gear pair and the lower left gear pair are fixedly connected to the corresponding gears through bolts, and are fixedly connected to the corresponding gear shafts through keys, and the upper right gear pair and the lower right gear pair are fixedly connected to each other. The eccentric block is only fixedly connected with the corresponding gear shaft;

Among the five sets of gear pairs, the gears in the upper left gear pair, the lower left gear pair and the bridge gear pair are respectively fixed to the corresponding gear shafts through keys, and the gears in the upper right gear pair and the lower right gear pair are connected to the corresponding gears through bearings. Axes are connected.

For each gear pair, the gears in the upper left gear pair and the lower left gear pair are respectively fixed on the corresponding gear shafts through keys, and the gears in the upper right gear pair and the lower right gear pair are respectively connected to the corresponding gear shafts through rolling bearings, so that Each gear in the upper right gear pair and the lower right gear can rotate around a corresponding gear shaft. Each gear in the bridge gear pair is fixed on the corresponding gear shaft through a key, and the gear shaft is installed on the inner box through a bearing.

The amplitude adjustment method realized by the high-speed shaking box device with adjustable amplitude in the present invention is as follows: when the amplitude needs to be adjusted, the reduction motor and the first clutch are used to first drive the lower left gear pair to rotate, and then drive the upper left gear pair through the bridge gear pair , The upper right gear pair and the lower right gear pair also rotate synchronously, wherein the eccentric blocks in the upper left gear pair and the lower left gear pair follow the rotation, and the eccentric blocks in the upper right gear pair and the lower right gear pair are fixed, so that by changing the four eccentric The phase angle of the block is used to adjust the size of the shaking force and the size of the amplitude. Wherein, the eccentric force generated by the operation of the eccentric block 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. By adjusting the phase angle of the two pairs of eccentric blocks, the size of the shaking force can be changed, thereby adjusting the amplitude of the shaking.

The specific working principle of the above-mentioned high-speed shaking box device with adjustable amplitude and the method for adjusting the amplitude is as follows:

The inner box is installed on the slide rail of the outer box, and the driving motor drives the gear pairs and the eccentric block to swing horizontally, and the driving motor adjusts the shaking of the shaking box by controlling the rotation speed of each gear pair frequency.

There are five sets of gear pairs installed in the inner box, and each set of gear pairs is installed on the same gear shaft. The two gears on the same gear shaft have opposite tooth shapes. An eccentric block is installed between the two gears, and the eccentric blocks in the upper and lower sets of gears are installed completely symmetrically, forming a symmetrical relationship of 180 degrees. All the eccentric blocks have good equal weight and equal moment of inertia, so that only The force in the horizontal direction is generated, and the force in other directions is completely offset, so that there will be no adverse effects on the shaker box foundation and the breast roll device.

Simultaneously, the lower left gear pair is engaged with the upper left gear pair, the upper right gear pair is engaged with the lower right gear pair, and the bridge gear is engaged with the other four pairs of gears. The gear shafts between the upper right gear pair, the lower right gear pair and the inner box body are respectively equipped with a second clutch and a third clutch, and the linkage between them and their respective gear shafts can be disconnected through the second clutch and the third clutch relationship and can operate independently.

The fourth clutch and the fifth clutch are installed between the gear shafts of the upper right gear pair and the lower right gear pair and the outer casing, and the shafts can be fixed when the amplitude is adjusted.

When adjusting the amplitude, the drive motor is turned off, the second clutch and the third clutch are powered off, and the interlocking relationship between the upper right gear pair and the lower right gear pair and their respective gear shafts is disconnected. The five clutches are energized so that the shafts of the upper right gear pair and the lower right gear pair are fixed on the outer casing.

The first clutch connected with the reduction motor is energized, and the reduction motor is linked with the gear shaft of the lower left gear pair. Start the deceleration motor, rotate the eccentric blocks on the upper left gear pair and the lower left gear pair according to actual needs, and change the phase angle of the four eccentric blocks, thereby adjusting the vibration amplitude by adjusting the vibration force.

Due to the meshing relationship of the bridge gears, when the deceleration motor rotates, the upper right gear pair and the lower right gear pair also rotate. The corresponding gear shafts are connected, so the rotation of the upper right gear pair and the lower right gear pair will not cause the eccentric block to rotate accordingly and the phase angle of the four eccentric blocks cannot be adjusted.

After the adjustment is completed, turn off the deceleration motor, power off the first clutch connected to the deceleration motor, and disconnect the deceleration motor from the lower left gear shaft; power off the fourth and fifth clutches connected to the outer box, and disconnect the upper right gear pair. The connection between the gear shaft of the lower right gear pair and the outer box; the second clutch and the third clutch are energized, so that the upper right gear pair, the lower right gear pair and the corresponding gear shafts are fixed and interlocked, and the drive motor is started to vibrate The box starts working normally.

Compared with the prior art, the present invention has the following beneficial effects:

The high-speed shaking box device forms a driving device through five sets of gear pairs, and only needs to use one driving motor to realize the transmission of shaking force, which can greatly reduce the investment cost and maintenance cost of the equipment.

This high-speed shaking box device controls the shaking frequency by the speed of the driving motor, adjusts the phase angle between the eccentric blocks through the geared motor to adjust the amplitude of the shaking box, changes the existing amplitude adjustment method, and its control method is very Simple, can greatly reduce the complexity of the mechanical structure, lubrication system and control system, also reduce the production and maintenance costs of equipment, and improve the stability of the system.

In the high-speed shaker box device, the gears of the five sets of gear pairs are all engaged in operation, which can ensure that the speed of each gear is exactly the same, and the precision of the power transmission is high, and the precision of the amplitude adjustment is also high.

Description of drawings

Fig. 1 is a structural schematic diagram of the high-speed shaking box device.

Fig. 2 is a sectional view of A-A of Fig. 1 .

Fig. 3 is a B-B sectional view of Fig. 1 .

Fig. 4 is a C-C sectional view of Fig. 1 .

Detailed ways

The present invention will be further described in detail below with reference to the examples, but the embodiments of the present invention are not limited thereto.

Example

A high-speed shaking box device with adjustable amplitude in this embodiment, as shown in Figure 1, includes a box body, five sets of gear pairs and four eccentric blocks, and the five sets of gear pairs and four eccentric blocks are all arranged in the box body. In addition, the device also has components such as a base and a lubrication system.

Wherein, the box body includes an inner box body 1, an outer box body 2 and a shaking rod 3, the inner box body is arranged in the outer box body, and a slide rail (not shown) is arranged on the inner bottom surface of the outer box body, and the inner box body The box body is installed on the slide rail, and one end of the shaking rod passes through the outer box body, and is fixedly connected with the inner box body through a flange. The inner box is installed in the outer box and supported by slide rails. The inner box swings back and forth on the slide rails of the outer box. The maximum swing amplitude is 0-25mm, and the shaking frequency is 0-500 rpm, except for the horizontal direction. There is no force in the direction. One end of the shaking rod is connected to the inner box through a flange, and the connection part is located in the middle of the inner box, and the other end is connected to the breast roller shaft through a thrust bearing, so that it does not hinder the rotation of the breast roller and can transmit the shaking force to the Breast roll, which shakes the wire section.

The five sets of gear pairs are the upper left gear pair 4, the lower left gear pair 5, the upper right gear pair 6, the lower right gear pair 7 and the bridge gear pair 8. There is a gear shaft in each gear pair, and the two gears that make up the gear pair The gears are respectively arranged at both ends of the gear shaft; the upper left gear pair, the lower left gear pair, the upper right gear pair and the lower right gear pair are centered, and an eccentric block is arranged between the two gears on the same gear shaft; the gears of the lower left gear pair The two ends of the shaft are respectively externally connected with a deceleration motor and a drive motor, and the end connected with the deceleration motor is also provided with a first clutch.

Five sets of gear pairs, the upper left gear pair is set at the upper left of the bridge gear pair, the lower left gear pair is set at the lower left of the bridge gear pair, the upper right gear pair is set at the upper right of the bridge gear pair, and the lower right gear pair is set At the bottom right of the bridge gear pair; the eccentric block set in the upper left gear pair and the eccentric block set in the lower left gear pair are installed symmetrically, the eccentric block set in the upper right gear pair and the eccentric block set in the lower right gear pair The blocks are installed symmetrically to form a symmetrical relationship at an angle of 180 degrees respectively. That is, the outer circumference of the bridge gear pair is evenly distributed on the other four sets of gear pairs, no eccentric block is installed on the bridge gear pair, and eccentric blocks are installed on the other four sets of gear pairs. The four eccentric blocks have good equal weight and equal moments of inertia, so that when the gear is running, only the force in the horizontal direction is generated, while the forces in other directions are completely offset, so that it will not have adverse effects on the foundation of the shaking box and the breast roller device.

Of the five gear pairs, the two gears in each gear pair have opposite tooth profiles.

Among the five gear pairs, as shown in Figure 1 or Figure 3, the gear diameter of the bridge gear pair is smaller than that of the other four gear pairs, and the thickness of each gear in the five gear pairs is equal. The upper left gear pair, the lower left gear pair, the lower right gear pair and the upper right gear pair have the same diameter, thickness and material of each gear, and the material of the bridge gear pair is also the same as these four groups of gear pairs.

Among the five sets of gear pairs, the upper left gear pair, lower left gear pair, upper right gear pair and lower right gear pair are all engaged with the bridge gear pair; the upper left gear pair is also meshed with the lower left gear pair, and the upper right gear pair is connected with the lower right gear pair Also mesh connections.

Five groups of gears are centered, as shown in Figure 2, the two ends of the eccentric block 9 in the upper left gear pair and the lower left gear pair are fixedly connected with the corresponding gears by bolts, as shown in Figure 4, the upper right gear pair and the lower right gear pair The eccentric block 9 in is fixedly connected with the corresponding gear shaft. That is: each eccentric block is fixed on the corresponding gear shaft through a fixed block and a key. At the same time, the two ends of the eccentric block in the upper left gear pair and the lower left gear pair are also fixedly connected with the corresponding gears through bolts, while the upper right gear pair and the right The eccentric block in the lower gear pair is not fixedly connected with the gear, but only fixedly connected with the corresponding gear shaft.

As shown in FIG. 2 , the reduction motor 10 and the driving motor 11 are respectively arranged on the outer wall of the outer box, and the first clutch 12 is arranged on the inner side of the outer box. Among them, one end of the gear shaft of the lower left gear pair is connected to the driving motor through a parallel coupling, and the driving motor drives the lower left gear pair to rotate, and then drives all the gears and eccentric blocks to rotate through the meshing between the gear pairs to generate shaking force. The drive motor is a variable frequency motor, without using a servo motor, thereby reducing the cost of control and the complexity of the control system. During the operation of the shaking box, the motor speed 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 centering gear shaft of the lower left gear is connected with the reduction motor through the first clutch. The deceleration ratio of the reduction motor is relatively large, so that the lower left gear pair rotates at a slow speed, and the rotation speed is 1 to 2 rev/min. The first clutch is an electromagnetic toothed clutch, and one end of the first clutch is connected with the reduction motor by a key, and the other end is connected and fixed with the gear shaft of the left lower gear pair by a key. The interlocking relationship between the reduction motor and the centering gear shaft of the lower left gear can be disconnected or connected.

As shown in Figure 4, the gear shaft between the upper right gear pair and the inner box body is respectively provided with a second clutch 13, and the gear shaft between the lower right gear pair and the inner box body is respectively provided with a third clutch 14. A fourth clutch 15 is provided at the junction of one end of the gear shaft of the upper right gear pair and the outer casing, and a fifth clutch 16 is provided at the junction of one end of the gear shaft of the lower right gear pair and the outer casing.

The second clutch, the third clutch, the fourth clutch and the fifth clutch are all electromagnetic gear clutches, one end of the second clutch is connected with the gear in the upper right gear alignment through bolts, and the other end is connected with the gear shaft in the upper right gear alignment through a key Fixed, so that the two gears can run together with the gear shaft, and can also run independently by disconnecting the linkage relationship between the two gears and the corresponding gear shaft through the clutch. One end of the third clutch is connected to the gear in the lower right gear pair through bolts, and the other end is fixed to the gear shaft in the lower right gear pair through a key, so that the two gears can run together with the gear shaft or can be disconnected through the clutch. The linkage relationship between the two gears and the corresponding gear shafts can be operated independently. A clutch (that is, the fourth clutch and the fifth clutch) is also installed between the gear shafts of the upper right gear pair and the lower right gear pair and the outer casing. One end of the clutch is fixed on the outer casing by bolts, and the other end is connected with The shaft is fixed so that the shaft can be held stationary during amplitude adjustment.

For each gear pair, the gears in the upper left gear pair and the lower left gear pair are respectively fixed on the corresponding gear shafts through keys, and the gears in the upper right gear pair and the lower right gear pair are respectively connected to the corresponding gear shafts through rolling bearings, so that Each gear in the upper right gear pair and the lower right gear can rotate around a corresponding gear shaft. Each gear in the bridge gear pair is fixed on the corresponding gear shaft through a key, and the gear shaft is installed on the inner box through a bearing.

The amplitude adjustment method realized by the above-mentioned high-speed shaking box device with adjustable amplitude is as follows: when the amplitude needs to be adjusted, use the reduction motor and the first clutch to first drive the lower left gear pair to rotate, and then drive the upper left gear pair and the upper right gear pair through the bridge gear pair. The gear pair and the lower right gear pair also rotate synchronously, wherein the eccentric blocks in the upper left gear pair and the lower left gear pair follow the rotation, and the eccentric blocks in the upper right gear pair and the lower right gear pair are fixed, so that by changing the four eccentric blocks The phase angle is used to adjust the size of the shaking force and the size of the amplitude. Wherein, the eccentric force generated by the operation of the eccentric block 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. By adjusting the phase angle of the two pairs of eccentric blocks, the size of the shaking force can be changed, thereby adjusting the amplitude of the shaking.

The specific working principle of the above-mentioned high-speed shaking box device with adjustable amplitude and the method for adjusting the amplitude is as follows:

The inner box is installed on the slide rail of the outer box, and the driving motor drives the gear pairs and the eccentric block to swing horizontally, and the driving motor adjusts the shaking of the shaking box by controlling the rotation speed of each gear pair frequency.

There are five sets of gear pairs installed in the inner box, and each set of gear pairs is installed on the same gear shaft. The two gears on the same gear shaft have opposite tooth shapes. An eccentric block is installed between the two gears, and the eccentric blocks in the upper and lower sets of gears are installed completely symmetrically, forming a symmetrical relationship of 180 degrees. All the eccentric blocks have good equal weight and equal moment of inertia, so that only The force in the horizontal direction is generated, and the force in other directions is completely offset, so that there will be no adverse effects on the shaker box foundation and the breast roll device.

Simultaneously, the lower left gear pair is engaged with the upper left gear pair, the upper right gear pair is engaged with the lower right gear pair, and the bridge gear is engaged with the other four pairs of gears. The gear shafts between the upper right gear pair, the lower right gear pair and the inner box body are respectively equipped with a second clutch and a third clutch, and the linkage between them and their respective gear shafts can be disconnected through the second clutch and the third clutch relationship and can operate independently.

The fourth clutch and the fifth clutch are installed between the gear shafts of the upper right gear pair and the lower right gear pair and the outer casing, and the shafts can be fixed when the amplitude is adjusted.

When adjusting the amplitude, the drive motor is turned off, the second clutch and the third clutch are powered off, and the interlocking relationship between the upper right gear pair and the lower right gear pair and their respective gear shafts is disconnected. The five clutches are energized so that the shafts of the upper right gear pair and the lower right gear pair are fixed on the outer casing.

The first clutch connected with the reduction motor is energized, and the reduction motor is linked with the gear shaft of the lower left gear pair. Start the deceleration motor, rotate the eccentric blocks on the upper left gear pair and the lower left gear pair according to actual needs, and change the phase angle of the four eccentric blocks, thereby adjusting the vibration amplitude by adjusting the vibration force.

Due to the meshing relationship of the bridge gears, when the deceleration motor rotates, the upper right gear pair and the lower right gear pair also rotate. The corresponding gear shafts are connected, so the rotation of the upper right gear pair and the lower right gear pair will not cause the eccentric block to rotate accordingly and the phase angle of the four eccentric blocks cannot be adjusted.

After the adjustment is completed, turn off the deceleration motor, power off the first clutch connected to the deceleration motor, and disconnect the deceleration motor from the lower left gear shaft; power off the fourth and fifth clutches connected to the outer box, and disconnect the upper right gear pair. The connection between the gear shaft of the lower right gear pair and the outer box; the second clutch and the third clutch are energized, so that the upper right gear pair, the lower right gear pair and the corresponding gear shafts are fixed and interlocked, and the drive motor is started to vibrate The box starts working normally.

As mentioned above, the present invention can be better realized. The above-mentioned embodiment is only a preferred embodiment of the present invention, and is not used to limit the scope of the present invention; Covered by the scope of protection required by the claims of the present invention.

Claims (10)

1. A high-speed shaking box device with adjustable amplitude is characterized in that it comprises a box body, five sets of gear pairs and four eccentric blocks, five sets of gear pairs and four eccentric blocks are all located in the box, and five sets of gear pairs The pairs are respectively the upper left gear pair, the lower left gear pair, the upper right gear pair, the lower right gear pair and the bridge gear pair. Each gear pair is provided with a gear shaft. end; the left upper gear pair, the left lower gear pair, the right upper gear pair and the right lower gear pair are centered, and an eccentric block is arranged between the two gears on the same gear shaft; The end of the driving motor connected with the geared motor is also provided with a first clutch. 2. A high-speed shaking box device with adjustable amplitude according to claim 1, characterized in that, among the five groups of gears, the upper left gear pair is arranged on the upper left of the bridge gear pair, and the lower left gear pair is arranged on the upper left side of the bridge gear pair. The lower left of the bridge gear pair, the upper right gear pair is set at the upper right of the bridge gear pair, the lower right gear pair is set at the lower right of the bridge gear pair; the eccentric block set in the left upper gear pair and the left lower gear pair The eccentric block in the middle is installed symmetrically, and the eccentric block located in the upper right gear pair and the eccentric block located in the lower right gear pair are installed symmetrically. 3. A high-speed shaking box device with adjustable amplitude according to claim 1, characterized in that, among the five sets of gear pairs, the tooth profiles of two gears in each set of gear pairs are opposite. 4. A high-speed shaking box device with adjustable amplitude according to claim 1, characterized in that, among the five sets of gear pairs, the gear diameters of the bridge gear pairs are smaller than the gear diameters of the other four sets of gear pairs. Each gear in a gear pair is of equal thickness. 5. A high-speed shaking box device with adjustable amplitude according to claim 1, characterized in that, the five groups of gears are centered, the left upper gear pair, the left lower gear pair, the right upper gear pair, the right lower gear pair and the The bridge gear pair is meshed with the bridge gear pair; the left upper gear pair is also meshed with the left lower gear pair, and the right upper gear pair is also meshed with the right lower gear pair. 6. A high-speed shaking box device with adjustable amplitude according to claim 1, wherein the box includes an inner box, an outer box and a shaking rod, and the inner box is arranged in the outer box , the inner bottom surface of the outer box is provided with a slide rail, the inner box is installed on the slide rail, and one end of the shaking rod passes through the outer box, and is fixedly connected with the inner box through a flange. 7. A high-speed shaking box device with adjustable amplitude according to claim 6, characterized in that, the geared motor and the drive motor are respectively arranged on the outer wall of the outer box, and the first clutch is arranged on the outer wall of the outer box. Inside; the first clutch is an electromagnetic toothed clutch. 8. A high-speed shaking box device with adjustable amplitude according to claim 6, characterized in that, the gear shaft between the upper right gear pair and the inner box body is provided with a second clutch, and the lower right gear pair is connected to the inner box body. A third clutch is provided on the gear shaft between the inner boxes; A fourth clutch is provided at the connection between one end of the gear shaft of the upper right gear pair and the outer casing, and a fifth clutch is provided at the connection between one end of the gear shaft of the lower right gear pair and the outer casing; The second clutch, the third clutch, the fourth clutch and the fifth clutch are all electromagnetic tooth clutches. 9. A high-speed shaking box device with adjustable amplitude according to claim 1, characterized in that, the five sets of gears are centered, and the two ends of the eccentric block centered by the upper left gear pair and the lower left gear pair are connected to the corresponding gears by bolts. The gear is fixedly connected with the corresponding gear shaft through a key, and the eccentric block in the upper right gear pair and the lower right gear pair is only fixedly connected with the corresponding gear shaft; Among the five sets of gear pairs, the gears in the upper left gear pair, the lower left gear pair and the bridge gear pair are respectively fixed to the corresponding gear shafts through keys, and the gears in the upper right gear pair and the lower right gear pair are connected to the corresponding gears through bearings. Axes are connected. 10. The amplitude adjustment method realized by the amplitude-adjustable high-speed shaking box device according to any one of claims 1 to 9, characterized in that, when the amplitude needs to be adjusted, the reduction motor and the first clutch are used to first drive the lower left gear pair Rotate, use the bridge gear pair to drive the upper left gear pair, upper right gear pair and lower right gear pair to also rotate synchronously, wherein the eccentric block in the upper left gear pair and the lower left gear pair rotates accordingly, and the eccentric block in the upper right gear pair and lower right gear pair The blocks are fixed, so the magnitude of the shaking force and the magnitude of the amplitude can be adjusted by changing the phase angle of the four eccentric blocks.