Variable frequency barrel shaker

Abstract

The utility model discloses a variable frequency bucket type exciter relates to the technical field of exciter and its accessories, the utility model discloses a support, the upper portion of one end of support installs motor cover, the upper portion of another end installs the axle bucket, the inside installation of motor cover has drive motor, the inside rotatory mounting of axle bucket has rotary rod, and the output shaft of rotary rod is connected with drive motor, and the upper portion of axle bucket is provided with excitation frame, and axle bucket is connected with excitation frame through elastic component, and rotary rod is connected with excitation frame through excitation component, and excitation component includes the outer ring gear fixed on rotary rod, and the outer ring gear is connected with rhombic plate through inner ring gear, and the both ends of rhombic plate still install eccentric wheel. The utility model discloses through elastic component not only realized the support of excitation frame, can also assist cooperation and carry out the excitation action simultaneously, and the protection effect can be played to drive motor and rotary rod through motor cover and axle bucket, and the effect of variable frequency excitation can be realized through excitation component and drive motor.

Description

Technical Field

[0001] This utility model belongs to the technical field of vibrators and their accessories, and in particular relates to a variable frequency barrel vibrator. Background Technology

[0002] A barrel vibrator is a device that generates centrifugal inertial force through the rotation of an eccentric shaft to create vibration. It is mainly used as a vibration source for machinery such as screening and conveying. The excitation shaft of the barrel vibrator is directly connected to the screen box of the screening equipment, which eliminates the need for the I-beam, reduces the height of the equipment, and makes the center of gravity more stable.

[0003] Chinese patent application CN210762713U discloses a quiver-type ejector vibrator, comprising two vibrating motors connected to a balance frame via bolts. Quiver-type springs are installed on both sides of the balance frame, with the front ends of the springs connected to a connecting body. The connecting body has mounting holes for connecting to vibrating equipment. The balance frame also has mounting holes for horizontally mounting another vibrating motor. This vibrator utilizes the combined force of the quiver-type springs for more concentrated force transmission, fully leveraging the excellent ejection deformation force transmission properties of rubber. It boasts a long service life, strong applicability, and greater load-bearing capacity. It is easy to install, reduces maintenance, and improves work efficiency. It completely overcomes drawbacks such as unstable operation and uneven feeding. This utility model has a simple structure, is robust and durable, and is particularly suitable for use in various types of vibrating machinery.

[0004] The aforementioned quiver-type vibrator has a vibratory motor connected to a balance frame via bolts. Quiver-type springs are installed on both sides of the balance frame, which is connected to a connecting body via these springs. The connecting body is used to connect to the feed trough of the screening machine. The vibration transmission components consist of the balance frame and the quiver-type springs. The vibration force transmitted by the quiver-type springs is unstable, and the rebound process causes the vibration energy to cancel out, thus weakening the vibration force transmitted by the vibratory motor to a certain extent. Furthermore, the vibratory motor provides vibration force to the quiver-type springs and connecting body through the balance frame, and the quiver-type springs and connecting body then provide the power support for the vibration force to the feed trough of the screening machine. The vibratory motor in this vibrator is used for material screening, which generates a large amount of dust. Therefore, the vibratory motor, the connected balance frame, and the quiver-type springs are placed in a harsh environment with a high level of dust, without any protection, directly exposed to the dusty environment, which will accelerate the wear and tear on the equipment. To address these issues, we provide a variable frequency barrel exciter. Utility Model Content

[0005] The purpose of this invention is to provide a variable frequency barrel vibrator. The elastic component not only supports the vibration frame but also assists in the vibration operation. The motor sleeve and shaft barrel protect the drive motor and rotating rod. The vibration component and drive motor achieve the effect of variable frequency vibration, thus solving the problems of the existing arrow-shaped ejector vibrator.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a variable frequency barrel vibrator, comprising a bracket; a motor sleeve is mounted on one end of the bracket, and a shaft barrel is mounted on the other end. A drive motor is installed inside the motor sleeve, and a rotating rod is rotatably mounted inside the shaft barrel, and the rotating rod is connected to the output shaft of the drive motor. A vibration frame is provided above the shaft barrel, and the shaft barrel is connected to the vibration frame through an elastic component. The rotating rod is connected to the vibration frame through a vibration component. The vibration component includes an outer ring gear fixed on the rotating rod, and the outer ring gear is connected to a diamond-shaped plate through an inner ring gear. Eccentric wheels are also installed at both ends of the diamond-shaped plate.

[0007] The present invention is further configured such that multiple horizontally arranged side blocks are provided on both sides of the shaft barrel, and the side blocks are equally spaced apart, and the side blocks are arranged in a one-to-one correspondence with the elastic components.

[0008] The present invention is further configured such that a barrel groove is provided on the bottom side wall of the excitation frame, and the excitation frame cooperates with the outer wall of the shaft barrel through the barrel groove. Multiple connecting holes are also provided on both sides of the barrel groove, and the connecting holes are symmetrically arranged with the elastic component.

[0009] The present invention is further configured such that the elastic component includes a traction column fixed in the connection hole and a hollow column fixed on the upper side wall of the side block. A spring is also installed inside the hollow column. The other end of the traction column is slidably connected to the hollow column and connected to the spring.

[0010] The present invention is further configured such that a rotating groove is provided on the left side wall of the rhomboid plate, and the rhomboid plate is rotatably connected to the end of the motor sleeve through the rotating groove.

[0011] The present invention is further configured such that the inner ring gear is fixedly installed at the center of the rhombus plate, and the outer ring gear is meshed with the teeth on the inner ring of the inner ring gear, and mounting holes are provided at both ends of the rhombus plate.

[0012] The present invention is further configured such that the mounting hole is fixedly connected to the eccentric wheel by mounting bolts, a rubber sleeve is also adhered to the outer wall of the eccentric wheel, and an excitation groove is provided at the left end of the bottom side wall of the excitation frame, and the eccentric wheel is connected to the excitation groove through the rubber sleeve.

[0013] The present invention is further configured such that the drive motor is a stepper motor, a motor frame is fixedly mounted on the outside of the drive motor, and the drive motor is fixedly connected to the inner wall of the motor sleeve through the motor frame, and the output shaft of the drive motor is connected to the rotating rod through a coupling.

[0014] This utility model has the following beneficial effects: This utility model incorporates a bracket, a motor sleeve, a shaft barrel, and elastic components. The bracket supports the motor sleeve and shaft barrel. The motor sleeve is positioned outside the drive motor to shield and protect it. The shaft barrel is fitted onto the outside of the rotating rod and is rotatably connected to the outer wall of the rotating rod. Elastic components connected to the excitation frame are also provided on both sides of the shaft barrel. These elastic components not only support the excitation frame but also assist in the excitation operation.

[0015] This invention comprises a vibration frame, a vibration assembly, and a drive motor. The output shaft of the drive motor is connected to a rotating rod via a coupling. A vibration assembly is mounted at the end of the rotating rod and connected to the vibration frame. The vibration assembly includes an outer ring gear fitted onto the end of the rotating rod, which meshes with a gear groove on the inner wall of an inner ring gear. The inner ring gear is fixedly mounted at the center of a rhomboid plate. Eccentric wheels are mounted at both ends of the rhomboid plate, with rubber sleeves adhered to their outer walls. A vibration groove is formed at the end of the bottom sidewall of the vibration frame, connecting the frame to the eccentric wheels. In use, the drive motor operates first, causing the rotating rod on its output shaft to rotate. As a result, the outer ring gear on the end of the rotating rod also rotates. Since the outer ring gear meshes with the inner ring gear, and the inner ring gear is fixed in the rhomboid plate, the rhomboid plate also rotates. Because the rhomboid plate is rhomboid in shape and eccentric wheels are fixedly installed at both ends, when the rhomboid plate rotates, the eccentric wheels at both ends intermittently contact the excitation groove on the bottom side wall of the excitation frame, thereby achieving the effect of making the excitation frame vibrate. The drive motor is a stepper motor. When the drive motor operates at different speeds and different rotation angles, it can change the contact time between the eccentric wheel and the excitation frame and the vibration amplitude of the excitation frame, thus achieving the effect of frequency conversion. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a variable frequency barrel exciter.

[0018] Figure 2 This is a structural disassembly diagram of a variable frequency barrel exciter.

[0019] Figure 3 This is a schematic diagram of the excitation frame.

[0020] Figure 4 This is a structural disassembly diagram of the shaft barrel and elastic components.

[0021] Figure 5 This is a structural disassembly diagram of the drive motor and excitation assembly.

[0022] Figure 6 This is a structural disassembly diagram of the excitation assembly.

[0023] The attached diagram lists the components represented by each number as follows: 1-Bracket, 2-Motor sleeve, 3-Shaft barrel, 301-Side block, 4-Vibration frame, 401-Barrel groove, 402-Vibration groove, 403-Connecting hole, 5-Vibration assembly, 501-Rhomboid plate, 501a-Rotating groove, 502-Inner ring gear, 503-Outer ring gear, 504-Mounting hole, 505-Eccentric wheel, 505a-Mounting bolt, 506-Rubber sleeve, 6-Elastic assembly, 601-Hollow column, 602-Spring, 603-Traction column, 7-Drive motor, 701-Motor frame, 702-Coupling, 703-Rotating rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0025] Please see Figure 1-2 This utility model is a variable frequency barrel vibrator, including a bracket 1, a motor sleeve 2 and a shaft barrel 3. The shaft barrel 3 can protect the rotating shaft 703, and the motor sleeve 2 can protect the drive motor 7, so as to prevent dust in the external environment from affecting the service life of the drive motor 7.

[0026] Specifically, bracket 1 is set below motor sleeve 2 and shaft barrel 3, and motor sleeve 2 and shaft barrel 3 are arranged with a coaxial centerline structure. The bottom sidewalls of motor sleeve 2 and shaft barrel 3 are fixedly connected to bracket 1.

[0027] Furthermore, the drive motor 7 is located inside the motor sleeve 2, and a motor frame 701 is fixedly installed on the outer wall of the drive motor 7. The drive motor 7 is fixedly connected to the inner wall of the motor sleeve 2 through the motor frame 701. The output shaft of the drive motor 7 is connected to the rotating rod 703 via a coupling 702, and the rotating rod 703 is inserted into the center of the shaft barrel 3 and rotates in conjunction with the shaft barrel 3. Example 2

[0028] Please see Figure 3-4 Based on embodiment 1, an excitation frame 4 and an elastic component 6 are also provided. The elastic component 6 not only supports the excitation frame 4, but also assists in the excitation operation.

[0029] Specifically, a groove 401 is provided at the center of the bottom side wall of the excitation frame 4, and the excitation frame 4 is configured to cooperate with the outer wall of the shaft barrel 3 through the groove 401. Side blocks 301 are also fixedly installed on the outer walls of both sides of the shaft barrel 3, and a connection hole 403 is provided on the bottom side wall of the excitation frame 4 corresponding to the side block 301.

[0030] Furthermore, the side block 301 is horizontally arranged, and the upper side wall of the side block 301 is fixedly connected to the connection hole 403 on the bottom side wall of the excitation frame 4 through the elastic component 6. The elastic component 6 and the side block 301 are arranged in a one-to-one correspondence, and multiple sets of elastic components 6 and side blocks 301 are arranged, with equal spacing between the multiple sets of elastic components 6 and side blocks 301. The elastic component 6 includes a hollow column 601 fixed on the side block 301 and a traction column 603 fixed in the connection hole 403. A spring 602 is also provided inside the hollow column 601. The other end of the traction column 603 is slidably inserted into the hollow column 601 and connected to the spring 602. Example 3

[0031] Please see Figure 5-6 Based on Embodiments 1 and 2, an excitation component 5 is also provided, which is used for transmission between the drive motor 7 and the excitation frame 4.

[0032] Specifically, the left end of the bottom sidewall of the excitation frame 4 is provided with an excitation groove 402, and the excitation assembly 5 includes an outer ring gear 503 provided on the end of the rotating rod 703. The outer ring gear 503 is connected to the rhomboid plate 501 through the inner ring gear 502, and eccentric wheels 505 are installed at both ends of the rhomboid plate 501. A rotating groove 501a is provided on the left side wall of the rhombus plate 501. The rhombus plate 501 rotates and engages with the end of the motor sleeve 2 through the rotating groove 501a to achieve the sealing effect on the end of the motor sleeve 2.

[0033] Furthermore, the inner ring gear 502 is fixedly installed at the center of the rhombus plate 501. The two ends of the rhombus plate 501 are provided with mounting holes 504, and the rhombus plate 501 is connected to the eccentric wheel 505 through the mounting holes 504. The eccentric wheel 505 is fixedly connected to the rhombus plate 501 by mounting bolts 505a. A rubber sleeve 506 is also glued to the outer wall of the eccentric wheel 505, and the eccentric wheel 505 contacts the vibration groove 402 through the rubber sleeve 506, thereby reducing the noise generated during contact.

[0034] The operation process of this embodiment is as follows: When in use, the drive motor 7 first works, and the rotating rod 703 on its output shaft rotates. Subsequently, the outer ring gear 503 at the end of the rotating rod 703 also rotates. Since the outer ring gear 503 is meshed with the inner ring gear 502, and the inner ring gear 502 is fixed in the rhomboid plate 501, the rhomboid plate 501 also rotates. Since the rhomboid plate 501 is rhomboid in shape and eccentric wheels 505 are fixedly installed at both ends, when the rhomboid plate 501 rotates, the eccentric wheels 505 at both ends intermittently contact the excitation groove 402 on the bottom side wall of the excitation frame 4, thereby achieving the effect of making the excitation frame 4 vibrate. The drive motor 7 is a stepper motor, that is, its rotation speed and rotation angle are controllable. When the drive motor 7 operates at different speeds and different rotation angles, it can change the contact time between the eccentric wheel 505 and the excitation frame 4 and the vibration amplitude of the excitation frame 4, that is, achieve the effect of frequency conversion.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A variable frequency barrel vibrator, comprising a support frame (1); characterized in that: A motor sleeve (2) is installed above one end of the bracket (1), and a shaft barrel (3) is installed above the other end. A drive motor (7) is installed inside the motor sleeve (2). A rotating rod (703) is rotatably installed inside the shaft barrel (3), and the rotating rod (703) is connected to the output shaft of the drive motor (7). An excitation frame (4) is provided above the shaft barrel (3), and the shaft barrel (3) is connected to the excitation frame (4) through an elastic component (6). The rotating rod (703) is connected to the excitation frame (4) through an excitation component (5). The excitation component (5) includes an outer ring gear (503) fixed on the rotating rod (703), and the outer ring gear (503) is connected to the rhomboid plate (501) through an inner ring gear (502). Eccentric wheels (505) are also installed at both ends of the rhomboid plate (501).

2. The variable frequency barrel exciter according to claim 1, characterized in that, Multiple horizontally arranged side blocks (301) are provided on both sides of the shaft barrel (3), and the side blocks (301) are equally spaced. The side blocks (301) correspond one-to-one with the elastic components (6).

3. A variable frequency barrel exciter according to claim 2, characterized in that, The excitation frame (4) has a barrel groove (401) on its bottom side wall, and the excitation frame (4) is engaged with the outer wall of the shaft barrel (3) through the barrel groove (401). Multiple connecting holes (403) are also provided on both sides of the barrel groove (401), and the connecting holes (403) are symmetrically arranged with the elastic component (6).

4. A variable frequency barrel exciter according to claim 3, characterized in that, The elastic component (6) includes a traction column (603) fixed in the connection hole (403) and a hollow column (601) fixed on the upper side wall of the side block (301). A spring (602) is also installed inside the hollow column (601). The other end of the traction column (603) is slidably connected to the hollow column (601) and connected to the spring (602).

5. A variable frequency barrel exciter according to claim 1, characterized in that, A rotating groove (501a) is provided on the left side wall of the rhombus plate (501), and the rhombus plate (501) is rotatably connected to the end of the motor sleeve (2) through the rotating groove (501a).

6. A variable frequency barrel exciter according to claim 1, characterized in that, The inner ring gear (502) is fixedly installed at the center of the rhombus plate (501), and the outer ring gear (503) meshes with the teeth on the inner ring of the inner ring gear (502). Mounting holes (504) are provided at both ends of the rhombus plate (501).

7. A variable frequency barrel exciter according to claim 6, characterized in that, The mounting hole (504) is fixedly connected to the eccentric wheel (505) by mounting bolts (505a). A rubber sleeve (506) is also glued to the outer wall of the eccentric wheel (505). An excitation groove (402) is provided at the left end of the bottom side wall of the excitation frame (4). The eccentric wheel (505) is connected to the excitation groove (402) through the rubber sleeve (506).

8. A variable frequency barrel exciter according to claim 1, characterized in that, The drive motor (7) is a stepper motor. A motor frame (701) is fixedly installed on the outside of the drive motor (7). The drive motor (7) is fixedly connected to the inner wall of the motor sleeve (2) through the motor frame (701). The output shaft of the drive motor (7) is connected to the rotating rod (703) through a coupling (702).

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