A vibration driver

Abstract

The application belongs to the technical field of driving equipment, and particularly relates to a vibration driver, which comprises a shell, a driving shaft and a driven shaft are rotationally connected in the shell, the driving shaft and the driven shaft are arranged in parallel, the driving shaft and the driven shaft both transversely penetrate through the shell, the driving shaft and the driven shaft are connected together through a transmission assembly, a driver for driving the driving shaft to rotate is installed on the shell, first eccentric blocks are arranged at both ends of the driving shaft, second eccentric blocks are arranged at both ends of the driven shaft, and the first eccentric blocks and the second eccentric blocks are both located outside the shell. The functions of two motors are synthesized into one motor, and one driver is used to drive rotation through the transmission assembly, so that the synchronism of the rotation of the two groups of eccentric blocks can be ensured, and personnel wiring errors can be prevented, thereby prolonging the service life.

Description

Technical Field

[0001] This invention belongs to the field of drive equipment technology, specifically a vibration actuator. Background Technology

[0002] In the field of vibratory motor applications, combining two or more motors can achieve more complex vibration patterns, which is the most common situation in industrial applications. Different combination methods can achieve different vibration effects. For example, two motors rotating synchronously in opposite directions are often used for linear vibration. Typically, two vibratory motors of the same model and speed are installed parallel and symmetrically on both sides of the equipment. By adjusting the phase angle of the eccentric blocks of the two motors, the centrifugal forces they generate are superimposed in one direction and cancel each other out in the opposite direction. The most common result is strong linear vibration. The centrifugal forces of the two motors are superimposed in the direction perpendicular to the motor axis, forming a huge resultant force that propels the equipment in linear motion; while in the direction parallel to the motor axis, the forces cancel each other out. This can generate a much larger excitation force than a single motor, achieving efficient linear conveying or screening. Two motors rotating synchronously in the same direction are often used for circular or elliptical vibration. Two vibratory motors of the same model and speed are installed parallel and symmetrically, but in the same direction. The horizontal components of the centrifugal force from the two motors cancel each other out, while the vertical components superimpose each other, forming a 360° rotating excitation force that causes the equipment to vibrate in a circular or elliptical translational trajectory.

[0003] However, when two motors are used together, it is difficult to ensure their consistency. Therefore, in actual work, there are situations where the two motors cannot be completely synchronized, which leads to unstable production vibration, unstable equipment operation, safety hazards during equipment use, and reduced service life. Moreover, during the wiring process of the two motors, it is easy to make wiring mistakes, resulting in reverse connection in the same direction or reverse connection in the same direction, which can damage the motors. Summary of the Invention

[0004] To address the problems mentioned above, this invention provides a vibration actuator that integrates the functions of two motors into one motor and uses a single actuator to drive rotation via a transmission component. This not only ensures the synchronization of the rotation of the two sets of eccentric blocks but also prevents wiring errors by personnel, thereby extending service life.

[0005] This invention provides a vibration actuator, including a housing. A drive shaft and a driven shaft are rotatably connected inside the housing. The drive shaft and the driven shaft are arranged parallel to each other and both extend laterally through the housing. The drive shaft and the driven shaft are connected together by a transmission assembly. A driver for driving the drive shaft to rotate is installed on the housing. A first eccentric block is provided at both ends of the drive shaft, and a second eccentric block is provided at both ends of the driven shaft. The first eccentric blocks and the second eccentric blocks are both located outside the housing.

[0006] By adopting the above technical solution, when the vibration actuator is powered on, the actuator drives the drive shaft to rotate, which in turn drives the first eccentric block to rotate. Simultaneously, the drive shaft drives the driven shaft to rotate via the transmission assembly, which in turn drives the second eccentric block to rotate. Therefore, the first and second eccentric blocks rotate synchronously, and the resulting centrifugal forces combine to form the excitation force. This invention integrates the functions of two motors into one motor, and through the design of the transmission assembly, allows two sets of eccentric blocks to be driven to rotate by a single actuator. This not only ensures the synchronicity of the rotation of the two sets of eccentric blocks but also prevents human wiring errors, thereby extending the service life of the vibration actuator.

[0007] Furthermore, the transmission assembly includes a driving gear and a driven gear, the driving gear being fixedly connected to the driving shaft, the driven gear being fixedly connected to the driven shaft, and the driving gear meshing with the driven gear.

[0008] By adopting the above technical solution, when the drive shaft rotates, the drive shaft drives the drive gear to rotate. Since the drive gear meshes with the driven gear, the drive gear drives the driven gear to rotate, and the driven gear drives the driven shaft to rotate, thereby achieving synchronous rotation of the drive shaft and the driven shaft.

[0009] Furthermore, both the driving gear and the driven gear are soft gears.

[0010] By adopting the above technical solution, the noise generated during the meshing and rotation of soft gears is reduced, thereby reducing the noise of the vibration actuator.

[0011] Furthermore, the driver includes a motor winding fixed to the housing and a rotor rotatably connected within the motor winding, the rotor being fixedly connected to the drive shaft.

[0012] By adopting the above technical solution, the motor windings will generate a magnetic field after being energized. The magnetic force in the magnetic field will drive the rotor to rotate, and the rotor will drive the drive shaft to rotate.

[0013] Furthermore, the motor windings are manufactured using a UV impregnation process.

[0014] By adopting the above technical solutions, the UV impregnation process is an internationally advanced process. On the one hand, it can ensure the uniformity and amount of paint applied, so that each copper wire can be evenly impregnated. On the other hand, after impregnation, UV irradiation can be used to quickly cure the paint in a very short time, thereby ensuring product quality and extending the service life of the motor.

[0015] Furthermore, the second eccentric block is also disposed in the middle portion of the driven shaft, and the second eccentric block installed in the middle portion of the driven shaft is located inside the housing.

[0016] By adopting the above technical solution, a second eccentric block is also installed in the middle part of the driven shaft, which increases the mass of the second eccentric block. Under the condition that the excitation force and angular velocity remain unchanged, the size of the second eccentric block can be reduced, greatly reducing the space occupied and making the entire vibration actuator more compact, thereby saving costs.

[0017] Furthermore, bearings are provided between the drive shaft and the housing, and between the driven shaft and the housing.

[0018] By adopting the above technical solution, the bearing serves to connect the drive shaft to the housing and the driven shaft to the housing, so that the drive shaft and the driven shaft can rotate smoothly on the housing.

[0019] Furthermore, a cover is provided on both sides of the housing, and the cover is placed on the first eccentric block and the second eccentric block. The cover is connected to the housing by bolts.

[0020] By adopting the above technical solution, the cover protects the first and second eccentric blocks, preventing them from being disturbed by external factors during rotation. The cover is bolted to the housing, making it easy to disassemble and thus facilitating the adjustment of the eccentric blocks.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] (1) When the vibration driver is powered on, the driver drives the drive shaft to rotate, the drive shaft drives the first eccentric block to rotate, and at the same time the drive shaft drives the driven shaft to rotate through the transmission assembly, the driven shaft drives the second eccentric block to rotate. Therefore, the first eccentric block and the second eccentric block rotate synchronously, and the resulting centrifugal force combines to form the excitation force. This invention combines the functions of two motors into one motor, and through the setting of the transmission assembly, the two sets of eccentric blocks are driven to rotate by one driver. This not only ensures the synchronicity of the rotation of the two sets of eccentric blocks, but also prevents human wiring errors, thereby extending the service life of the vibration driver.

[0023] (2) A second eccentric block is also installed in the middle part of the driven shaft, which increases the mass of the second eccentric block. Under the condition that the excitation force and angular velocity remain unchanged, the size of the second eccentric block can be reduced, greatly reducing the space occupied, making the entire vibration driver more compact, and thus saving costs.

[0024] (3) The cover serves to protect the first eccentric block and the second eccentric block, preventing the first eccentric block and the second eccentric block from being disturbed by the outside when rotating. The cover is connected to the shell by bolts, which facilitates the disassembly of the cover and thus facilitates the adjustment of the eccentric block. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a cross-sectional view of the internal structure of a vibration actuator;

[0027] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Drive shaft; 3. Driven shaft; 4. First eccentric block; 5. Second eccentric block; 6. Drive gear; 7. Driven gear; 8. Motor winding; 9. Rotor; 10. Bearing; 11. Cover. Detailed Implementation

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0029] The following is in conjunction with the appendix Figure 1 The invention is described in detail with specific embodiments.

[0030] Reference Figure 1This invention provides a vibration actuator, comprising a housing 1. A drive shaft 2 and a driven shaft 3 are rotatably connected within the housing 1. The drive shaft 2 and driven shaft 3 are arranged parallel to each other and both transversely penetrate the housing 1. The drive shaft 2 and driven shaft 3 are connected together by a transmission assembly. A driver for driving the drive shaft 2 to rotate is mounted on the housing 1. First eccentric blocks 4 are provided at both ends of the drive shaft 2, and second eccentric blocks 5 are provided at both ends of the driven shaft 3. Both the first eccentric blocks 4 and the second eccentric blocks 5 are located outside the housing 1. When the vibration actuator is powered on, the driver drives the drive shaft 2 to rotate, which in turn drives the first eccentric blocks 4 to rotate. Simultaneously, the drive shaft 2 drives the driven shaft 3 to rotate via the transmission assembly, and the driven shaft 3 drives the second eccentric blocks 5 to rotate. Therefore, the first eccentric blocks 4 and the second eccentric blocks 5 rotate synchronously, and the resulting centrifugal force combines to form an excitation force. This invention integrates the functions of two motors into one motor, and through the setting of the transmission component, enables the two sets of eccentric blocks to be driven to rotate by a single driver. This not only ensures the synchronicity of the rotation of the two sets of eccentric blocks, but also prevents human wiring errors, thereby extending the service life of the vibration driver.

[0031] In this embodiment, the transmission component adopts a gear transmission form. Of course, the transmission component can also adopt other forms such as belt transmission, all of which are within the protection scope of this invention. The transmission component includes a driving gear 6 and a driven gear 7. The driving gear 6 is fixedly connected to the driving shaft 2, and the driven gear 7 is fixedly connected to the driven shaft 3. The driving gear 6 and the driven gear 7 mesh with each other. When the driving shaft 2 rotates, the driving shaft 2 drives the driving gear 6 to rotate. Since the driving gear 6 and the driven gear 7 are meshed, the driving gear 6 drives the driven gear 7 to rotate, and the driven gear 7 drives the driven shaft 3 to rotate, thereby achieving synchronous rotation of the driving shaft 2 and the driven shaft 3.

[0032] Both the driving gear 6 and the driven gear 7 are soft gears. Soft gears generate less noise when meshing and rotating, which can reduce the noise of the vibration actuator.

[0033] The driver includes a motor winding 8 fixed to the housing 1 and a rotor 9 rotatably connected within the motor winding 8. The rotor 9 is fixedly connected to the drive shaft 2. When the motor winding 8 is energized, it generates a magnetic field. The magnetic force in the magnetic field drives the rotor 9 to rotate, which in turn drives the drive shaft 2 to rotate.

[0034] The motor winding 8 adopts a UV impregnation process, which is an internationally advanced process. On the one hand, it can ensure the uniformity and amount of varnish, so that each copper wire can be varnished evenly. On the other hand, after the varnishing is completed, UV irradiation is used, which can cure quickly in a very short time, thereby ensuring product quality and extending the service life of the motor.

[0035] The second eccentric block 5 is also disposed in the middle part of the driven shaft 3, and the second eccentric block 5 installed in the middle part of the driven shaft 3 is located inside the housing 1. When designing motor parameters, according to the formula F=m*ω 2 *r, where F is the motor excitation force, m is the mass of the eccentric block, ω is the rotational angular velocity, and r is the eccentricity of the eccentric block. First, set the desired excitation force of the vibration actuator, as well as the mass and angular velocity of the eccentric block, and then the eccentricity of the eccentric block can be calculated. Furthermore, a second eccentric block 5 is also installed in the middle of the driven shaft 3, which increases the mass of the second eccentric block 5. With the excitation force and angular velocity remaining constant, the size of the second eccentric block 5 can be reduced, significantly reducing the space occupied and making the entire vibration actuator more compact, thereby saving costs.

[0036] Bearings 10 are provided between the drive shaft 2 and the housing 1, and between the driven shaft 3 and the housing 1. The bearings 10 serve to connect the drive shaft 2 and the housing 1, and the driven shaft 3 and the housing 1, so that the drive shaft 2 and the driven shaft 3 can be smoothly rotated and connected to the housing 1.

[0037] Both sides of the housing 1 are provided with a cover 11, which covers the first eccentric block 4 and the second eccentric block 5. The cover 11 is connected to the housing 1 by bolts. The cover 11 serves to protect the first eccentric block 4 and the second eccentric block 5 and prevent the first eccentric block 4 and the second eccentric block 5 from being disturbed by external factors when rotating. The cover 11 is connected to the housing 1 by bolts, which facilitates the disassembly of the cover 11 and thus facilitates the adjustment of the eccentric blocks.

[0038] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the nature and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention.

Claims

1. A vibration actuator, characterized in that, The device includes a housing (1), in which a drive shaft (2) and a driven shaft (3) are rotatably connected. The drive shaft (2) and the driven shaft (3) are arranged parallel to each other. Both the drive shaft (2) and the driven shaft (3) pass through the housing (1) laterally. The drive shaft (2) and the driven shaft (3) are connected together by a transmission assembly. A driver for driving the drive shaft (2) to rotate is installed on the housing (1). A first eccentric block (4) is provided at both ends of the drive shaft (2), and a second eccentric block (5) is provided at both ends of the driven shaft (3). The first eccentric block (4) and the second eccentric block (5) are both located outside the housing (1). The second eccentric block (5) is also provided in the middle part of the driven shaft (3). The second eccentric block (5) installed in the middle part of the driven shaft (3) is located inside the housing (1).

2. The vibration actuator according to claim 1, characterized in that, The transmission assembly includes a driving gear (6) and a driven gear (7). The driving gear (6) is fixedly connected to the driving shaft (2), and the driven gear (7) is fixedly connected to the driven shaft (3). The driving gear (6) and the driven gear (7) mesh with each other.

3. The vibration actuator according to claim 2, characterized in that, Both the driving gear (6) and the driven gear (7) are soft gears.

4. The vibration actuator according to claim 1, characterized in that, The driver includes a motor winding (8) fixed on the housing (1) and a rotor (9) rotatably connected within the motor winding (8), the rotor (9) being fixedly connected to the drive shaft (2).

5. The vibration actuator according to claim 4, characterized in that, The motor winding (8) is made using a UV impregnation process.

6. The vibration actuator according to claim 1, characterized in that, Bearings (10) are provided between the drive shaft (2) and the housing (1) and between the driven shaft (3) and the housing (1).

7. The vibration actuator according to claim 1, characterized in that, Both sides of the housing (1) are provided with covers (11), which cover the first eccentric block (4) and the second eccentric block (5). The covers (11) are connected to the housing (1) by bolts.

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