Vibration table amplitude adjusting structure

Abstract

The utility model discloses a vibration table amplitude adjusting structure, which relates to the technical field of vibration table equipment and comprises a vibration box, a vibration motor is arranged at the lower end of the vibration box and comprises a motor shell and a motor shaft, a fixing plate is movably sleeved on the side wall of the motor shaft, and the upper end of the fixing plate is fixedly connected with the vibration box. One end of a motor shaft is fixedly connected with a rotating disc, a mounting frame is arranged on the side wall of the rotating disc, a first eccentric block and a second eccentric block are movably connected to the inner wall of the mounting frame, mounting grooves are formed in the side walls of the first eccentric block and the second eccentric block, and first inner teeth are fixedly connected to the inner wall of the mounting groove of the first eccentric block. The worm is rotated to drive the worm gear and the rotating column to rotate, and then the gear is driven to be meshed with the first inner tooth and the second inner tooth, so that the first eccentric block and the second eccentric block rotate around the motor shaft in opposite directions, a user can quickly adjust the included angle between the eccentric blocks under the condition that the user does not need to loosen and tighten a bolt frequently, and the amplitude is conveniently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of vibration table equipment technology, and in particular to a vibration table amplitude adjustment structure. Background Technology

[0002] The vibration table is mainly composed of a base frame, vibrator springs, and other components. Both the table surface and the base frame are welded from steel plates and shaped steel. The vibration table is composed of an electric motor and a pair of identical eccentric wheels, which are installed at the center of the table surface (reverse side) through a pair of hanger couplings. It plays a role in stabilizing and vertically controlling the vibration process. The amplitude adjustment structure of the vibration table is the key part to ensure that the vibration table can generate the required vibration amplitude according to the predetermined requirements.

[0003] For example, patent CN215150087U discloses a concrete vibration table amplitude adjustment structure, including an upper platform with a groove at the top and a vibration motor fixedly installed at the bottom. A buffer assembly is provided at the bottom of the upper platform, consisting of a first connecting block, a second connecting block, and a support spring. The first connecting block is fixedly connected to the bottom of the upper platform, and the support spring is positioned between the first and second connecting blocks, with both ends fixedly connected to them respectively. A support frame is provided on the outside of the second connecting block. However, this concrete vibration table amplitude adjustment structure has shortcomings. Although it achieves amplitude adjustment, it has limitations. Both the first and second eccentric blocks are fixed with numerous bolts. Each time the positions of the first and second eccentric blocks are adjusted, workers need to spend a significant amount of time and effort loosening and tightening these bolts, making the operation cumbersome and time-consuming.

[0004] Therefore, in order to solve this problem, we propose a vibration table amplitude adjustment structure. Utility Model Content

[0005] The purpose of this utility model is to provide a vibration table amplitude adjustment structure, which aims to solve the problem in the above-mentioned background art that the existing concrete vibration table amplitude adjustment structure requires workers to spend a lot of time and effort to loosen and tighten these bolts, making the operation process cumbersome and time-consuming.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a vibration table amplitude adjustment structure, including a vibration box, a vibration motor is provided at the lower end of the vibration box, the vibration motor includes a motor housing and a motor shaft, a fixing plate is movably sleeved on the side wall of the motor shaft, the upper end of the fixing plate is fixedly connected to the vibration box, a rotating disk is fixedly connected to one end of the motor shaft, a mounting frame is provided on the side wall of the rotating disk, a first eccentric block and a second eccentric block are movably connected to the inner wall of the mounting frame, both the first eccentric block and the second eccentric block have mounting grooves on their side walls, a first internal tooth is fixedly connected to the inner wall of the mounting groove of the first eccentric block, a second internal tooth is fixedly connected to the inner wall of the mounting groove of the second eccentric block, a rotating column is movably connected inside the mounting frame, one end of the rotating column penetrates the inner wall of the mounting frame, the other end of the rotating column outside the mounting frame penetrates the first eccentric block and the second eccentric block, a gear is fixedly connected to the side wall of the rotating column, the gear meshes with the first internal tooth and the second internal tooth, a worm gear is fixedly connected to the other end of the rotating column inside the mounting frame, and a worm is meshed with the inner side wall of the worm gear.

[0007] Preferably, the rotating disk has a groove on its side wall, a slider is slidably connected to the inner wall of the groove, a threaded post is threadedly connected to the inside of the slider, the mounting frame is fixedly connected to the side wall of the slider, and the end of the rotating post away from the mounting frame is movably connected to the slider.

[0008] Preferably, four first connecting blocks are evenly fixedly connected to the lower end of the vibration box, a support spring is fixedly installed at the lower end of the first connecting block, a second connecting block is fixedly installed at the lower end of the support spring, a support frame is provided on the side wall of the second connecting block, a load-bearing block is fixedly installed at the lower end of the second connecting block, and a base is fixedly connected to the lower end of the load-bearing block.

[0009] Preferably, both the first eccentric block and the second eccentric block have through grooves on their sidewalls, the rotating column passes through the through grooves, and the rotating column is slidably connected to the inner wall of the through grooves.

[0010] Preferably, the first internal tooth and the second internal tooth are located on both sides of the gear.

[0011] Preferably, the vibration motor is electrically connected to an external controller.

[0012] This utility model has the following beneficial effects:

[0013] In this invention, by rotating the worm gear, the worm wheel and rotating column can be easily driven to rotate, thereby driving the gear to mesh with the first and second internal teeth. This causes the first and second eccentric blocks to rotate around the motor shaft in opposite directions, allowing the user to quickly adjust the angle between the eccentric blocks without frequently loosening and tightening bolts, thus changing the position of the center of mass of the eccentric blocks and achieving convenient amplitude adjustment. Furthermore, by adjusting the angle between the first and second eccentric blocks and by utilizing the sliding of the threaded column and the slider in the groove, the distance between the eccentric blocks and the motor shaft can be adjusted. This dual adjustment mechanism provides a wider amplitude adjustment range, enabling the vibration table to adapt to different working requirements. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a vibration table amplitude adjustment structure proposed in this utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the vibration motor in the vibration table amplitude adjustment structure proposed in this utility model;

[0016] Figure 3 Exploded three-dimensional diagram of the internal structure of the slide groove in the vibration table amplitude adjustment structure proposed in this utility model. Figure 1 ;

[0017] Figure 4 Exploded three-dimensional diagram of the internal structure of the slide groove in the vibration table amplitude adjustment structure proposed in this utility model. Figure 2 .

[0018] Legend:

[0019] 1. Vibration box; 11. First connecting block; 12. Support spring; 13. Second connecting block; 14. Support frame; 15. Load-bearing block; 16. Base; 2. Vibration motor; 21. Motor shaft; 22. Fixing plate; 23. Rotating disk; 231. Slide groove; 24. Slider; 241. Threaded column; 25. Mounting frame; 251. First eccentric block; 252. Second eccentric block; 253. Mounting groove; 254. First internal gear; 255. Second internal gear; 256. Rotating column; 257. Gear; 258. Worm gear; 259. Worm; 26. Through groove. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] Reference Figures 1-4 This utility model provides an embodiment of a vibration table amplitude adjustment structure, including a vibration box 1. A vibration motor 2 is provided at the lower end of the vibration box 1. The vibration motor 2 includes a motor housing and a motor shaft 21. A fixing plate 22 is movably sleeved on the side wall of the motor shaft 21. The upper end of the fixing plate 22 is fixedly connected to the vibration box 1. A rotating disk 23 is fixedly connected to one end of the motor shaft 21. A mounting frame 25 is provided on the side wall of the rotating disk 23. A first eccentric block 251 and a second eccentric block 252 are movably connected to the inner wall of the mounting frame 25. The side walls of the first eccentric block 251 and the second eccentric block 252 are each provided with a mounting groove 253. The mounting groove 253 of the first eccentric block 251 is located within... The first internal tooth 254 is fixedly connected to the wall. The second internal tooth 255 is fixedly connected to the inner wall of the mounting groove 253 of the second eccentric block 252. A rotating column 256 is movably connected inside the mounting frame 25. One end of the rotating column 256 passes through the inner wall of the mounting frame 25, and the other end of the rotating column 256 located outside the mounting frame 25 passes through the first eccentric block 251 and the second eccentric block 252. A gear 257 is fixedly connected to the side wall of the rotating column 256. The gear 257 meshes with the first internal tooth 254 and the second internal tooth 255. A worm gear 258 is fixedly connected to the end of the rotating column 256 located inside the mounting frame 25. A worm 259 is meshed with the inner side wall of the worm gear 258.

[0023] This setup rotates the worm gear 259 to drive the worm wheel 258, which in turn drives the rotating column 256 to rotate. The rotating column 256 then drives the gear 257 to rotate. The gear 257, through the meshing of the first internal gear 254 and the second internal gear 255, simultaneously drives the first eccentric block 251 and the second eccentric block 252 to rotate around the motor shaft 21. The rotation directions of the first eccentric block 251 and the second eccentric block 252 are opposite to each other, thereby adjusting the included angle between the first eccentric block 251 and the second eccentric block 252, i.e., adjusting the center of mass of the eccentric blocks. This allows for adjustment of the amplitude of the vibration motor 2 without the need for frequent bolt rotation, making it simple and convenient.

[0024] The rotating disk 23 has a groove 231 on its side wall. A slider 24 is slidably connected to the inner wall of the groove 231. A threaded post 241 is threaded through the inside of the slider 24. The mounting frame 25 is fixedly connected to the side wall of the slider 24. The end of the rotating post 256 away from the mounting frame 25 is movably connected to the slider 24. By rotating the threaded post 241, the threaded post 241 drives the slider 24 to slide on the inner wall of the groove 231. This causes the slider 24 to drive the first eccentric block 251 and the second eccentric block 252 away from the motor shaft 21 through the mounting frame 25, thereby further adjusting the amplitude of the vibration motor 2.

[0025] Four first connecting blocks 11 are evenly fixedly connected to the lower end of the vibration box 1. A support spring 12 is fixedly installed at the lower end of the first connecting block 11. A second connecting block 13 is fixedly installed at the lower end of the support spring 12. A support frame 14 is provided on the side wall of the second connecting block 13. A load-bearing block 15 is fixedly installed at the lower end of the second connecting block 13. A base 16 is fixedly connected to the lower end of the load-bearing block 15.

[0026] Both the first eccentric block 251 and the second eccentric block 252 have through grooves 26 on their side walls. The rotating column 256 passes through the through groove 26 and is slidably connected to the inner wall of the through groove 26. The through groove 26 is used to limit the position of the first eccentric block 251 and the second eccentric block 252, and at the same time realize the rotation of the first eccentric block 251 and the second eccentric block 252 around the motor shaft 21.

[0027] The first internal tooth 254 and the second internal tooth 255 are located on both sides of the gear 257, respectively, and are used to enable the rotating gear 257 to drive the first eccentric block 251 and the second eccentric block 252 to rotate around the motor shaft 21 through the meshing connection of the first internal tooth 254 and the second internal tooth 255.

[0028] The vibration motor 2 is electrically connected to an external controller, which is used to control the opening and closing of the vibration motor 2.

[0029] Working principle: First, rotating the worm 259 drives the worm wheel 258 to rotate, which in turn drives the rotating column 256 to rotate. The rotating column 256 drives the gear 257 to rotate. The gear 257, through the meshing of the first internal gear 254 and the second internal gear 255, simultaneously drives the first eccentric block 251 and the second eccentric block 252 to rotate around the motor shaft 21. The rotation directions of the first eccentric block 251 and the second eccentric block 252 are opposite to each other, thereby adjusting the included angle between the first eccentric block 251 and the second eccentric block 252, i.e., adjusting the center of mass of the eccentric blocks, thus adjusting the amplitude of the vibration motor 2 without frequent bolt rotation. Second, rotating the threaded column 241 causes the slider 24 to slide on the inner wall of the groove 231. The slider 24, through the mounting frame 25, drives the first eccentric block 251 and the second eccentric block 252 away from the motor shaft 21, further adjusting the amplitude of the vibration motor 2.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vibration table amplitude adjustment structure, comprising a vibration box (1), characterized in that: The vibration box (1) is equipped with a vibration motor (2) at its lower end. The vibration motor (2) includes a motor housing and a motor shaft (21). A fixing plate (22) is movably sleeved on the side wall of the motor shaft (21). The upper end of the fixing plate (22) is fixedly connected to the vibration box (1). A rotating disk (23) is fixedly connected to one end of the motor shaft (21). A mounting frame (25) is provided on the side wall of the rotating disk (23). A first eccentric block (251) and a second eccentric block (252) are movably connected to the inner wall of the mounting frame (25). The side walls of the first eccentric block (251) and the second eccentric block (252) are both provided with mounting grooves (253). The inner wall of the mounting groove (253) of the first eccentric block (251) is fixedly connected with a first internal tooth (254). The inner wall of the mounting groove (253) of the eccentric block (252) is fixedly connected to the second internal tooth (255). The mounting frame (25) is movably connected to the inside of the mounting frame (25). One end of the rotating column (256) passes through the inner wall of the mounting frame (25), and the other end of the rotating column (256) located outside the mounting frame (25) passes through the first eccentric block (251) and the second eccentric block (252). The side wall of the rotating column (256) is fixedly connected to the gear (257), which meshes with the first internal tooth (254) and the second internal tooth (255). The end of the rotating column (256) located inside the mounting frame (25) is fixedly connected to the worm gear (258), and the inner side wall of the worm gear (258) is meshed with the worm (259).

2. The vibration table amplitude adjustment structure according to claim 1, characterized in that: The rotating disk (23) has a sliding groove (231) on its side wall. A slider (24) is slidably connected to the inner wall of the sliding groove (231). A threaded column (241) is threaded through the inside of the slider (24). The mounting frame (25) is fixedly connected to the side wall of the slider (24). The end of the rotating column (256) away from the mounting frame (25) is movably connected to the slider (24).

3. The vibration table amplitude adjustment structure according to claim 1, characterized in that: The vibration box (1) is uniformly fixedly connected to four first connecting blocks (11) at its lower end. A support spring (12) is fixedly installed at the lower end of the first connecting block (11). A second connecting block (13) is fixedly installed at the lower end of the support spring (12). A support frame (14) is provided on the side wall of the second connecting block (13). A load-bearing block (15) is fixedly installed at the lower end of the second connecting block (13). A base (16) is fixedly connected at the lower end of the load-bearing block (15).

4. The vibration table amplitude adjustment structure according to claim 1, characterized in that: The first eccentric block (251) and the second eccentric block (252) are both provided with through grooves (26) on their side walls. The rotating column (256) passes through the through groove (26) and is slidably connected to the inner wall of the through groove (26).

5. The vibration table amplitude adjustment structure according to claim 1, characterized in that: The first internal tooth (254) and the second internal tooth (255) are located on both sides of the gear (257).

6. The vibration table amplitude adjustment structure according to claim 1, characterized in that: The vibration motor (2) is electrically connected to an external controller.

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