A vibrating screen

By installing the powertrain and screen in the vibrating screen separately, and placing the shaft of the exciter above the screen, combining the elastic member connection and adjustment device, the problems of low installation accuracy and low transmission efficiency of the existing vibrating screen at the connection between the powertrain and the vibrating shaft are solved, and screening efficiency and installation convenience are improved.

CN222724816UActive Publication Date: 2025-04-08SOUTH CHINA MASCH MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421398209.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-19
Publication Date
2025-04-08
Estimated Expiration
2034-06-19

AI Technical Summary

Technical Problem

The existing vibrating screen has problems such as low installation accuracy, low transmission efficiency and affected screening efficiency at the connection between the powertrain and the shaft of the vibration exciter.

Method used

By installing the powertrain and the screen body separately, the shaft of the exciter is located above the screen body, and the elastic member is used to connect the powertrain and the shaft to adjust the installation position of the powertrain and the shaft and the distance between the pendulum center of mass and the screen body center.

Benefits of technology

It improves the installation accuracy of the powertrain and shaft, enhances the transmission efficiency, avoids the impact on screening efficiency, and simplifies the lifting and installation process of the screen.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222724816U_ABST
    Figure CN222724816U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of screening machinery, and discloses a vibrating screen, including a frame, a power assembly, a screen body, elastic support feet, and a vibrator; the frame includes a first bracket and a second bracket, the first bracket is provided with a positioning screw, the second bracket is provided with a mounting plate at the bottom, the two ends of the mounting plate are provided with openings, and the positioning screw is provided with a first adjusting nut and a second adjusting nut; the power assembly includes two groups of power sub-assemblies with the same structure, and the power sub-assembly includes a driving motor and a transmission shaft assembly. The beneficial effects of the utility model: the power assembly and the screen body are installed separately, and the rotating shaft of the vibrator is located above the screen body to avoid affecting the screening efficiency of the screen body. The power assembly and the screen body can be disassembled and hoisted, which is easy to install; it is easy to adjust the installation position of the power assembly connected to the rotating shaft, and improve the installation accuracy of the power assembly and the rotating shaft.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of screening machinery, in particular to a vibrating screen. Background Art

[0002] Vibrating screen is a highly efficient screening equipment, which is widely used in grading operations in industries such as coal, building materials, and chemicals. The vibrating screen mainly includes a screen body, a vibrator, and a power assembly. The power assembly drives the rotating shaft of the vibrator to rotate. Due to the centrifugal inertia force of the pendulum on the vibrator, the screen body vibrates, causing the material on the screen inside the screen body to vibrate and disperse and be screened by the screen.

[0003] In the prior art, the power assembly is installed on the screen body, and the rotating shaft of the vibrator is located between the upper and lower screens. When the material is screened from the upper screen to the lower screen, the rotating shaft is likely to block the material, affecting the screening efficiency. In addition, when the material on the upper screen is screened, it falls onto the rotating shaft, which is likely to cause wear on the external protective structure of the rotating shaft. In addition, the overall lifting of the power assembly and the screen body is difficult, which is not conducive to installation. Moreover, the distance between the centroid of the pendulum of the vibrator and the centroid of the screen body is not easy to adjust. In addition, when the power assembly is connected to the rotating shaft of the vibrator, the installation position is not easy to adjust, and the installation accuracy is low, resulting in low transmission efficiency of the power assembly, affecting the screening efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a vibrating screen, in which a power assembly and a screen body are installed separately, and the rotating shaft of the vibrator is located above the screen body to avoid affecting the screening efficiency of the screen body. At the same time, the power assembly and the screen body can be disassembled and hoisted, which is easy to install. In addition, it is easy to adjust the installation position when the power assembly is connected to the rotating shaft of the vibrator, thereby improving the installation accuracy of the power assembly and the rotating shaft. The distance between the centroid of the pendulum of the vibrator and the centroid of the screen body is easy to adjust, thereby ensuring the transmission efficiency of the power assembly and improving the screening efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a vibrating screen, including a frame, a power assembly, a screen body, elastic supporting feet, and a vibrator;

[0006] The frame is located outside the screen body, the frame includes a first bracket and a second bracket, the second bracket is located above the first bracket, a vertically arranged positioning screw is distributed on the first bracket, the second bracket is inclined, a mounting plate is spaced along the first direction at the bottom of the second bracket, openings corresponding to the positioning screw are opened at both ends of the mounting plate, the positioning screw is clamped in the opening, a first adjusting nut and a second adjusting nut are arranged on the positioning screw from bottom to top, and the mounting plate is located between the first adjusting nut and the second adjusting nut;

[0007] The power assembly includes two groups of power sub-assemblies with the same structure, and the power sub-assembly includes a drive motor and a transmission shaft assembly, and the drive motor and the transmission shaft assembly are driven by a conveyor belt;

[0008] The second bracket is provided with fixing plates of the same number and corresponding position as the power sub-assembly, the fixing plates are provided with strip holes for installing the drive motors along the first direction, the drive motors are fixed to the fixing plates through bolts and the strip holes; the transmission shaft assembly is fixedly connected to the fixing plates;

[0009] The vibrators are arranged on the sieve body at intervals along the first direction. The number of the vibrators is the same as that of the power sub-assembly and their positions correspond. The vibrator comprises a rotating shaft and a pendulum assembly. The rotating shaft is located above the sieve body. The output shaft of the transmission shaft assembly is connected to the rotating shaft through an elastic member. Pendulum assemblies are arranged at both ends of the rotating shaft.

[0010] Furthermore, the elastic member includes a coupling shaft, a flexible connector, a sleeve, and a rotating shaft joint. The sleeve and the rotating shaft joint are respectively fixed to both ends of the coupling shaft through the flexible connector. The sleeve is used to be keyed to the output shaft of the power assembly, and the rotating shaft joint is used to be fixedly connected to the rotating shaft. When the power assembly works, it drives the rotating shaft to rotate, thereby driving the pendulum assembly to rotate.

[0011] Furthermore, the coupling shaft comprises a coupling shaft body, a first connecting flange, both ends of the coupling shaft body are fixedly provided with the first connecting flange, and the end of the sleeve is provided with a second connecting flange for fixing to the flexible connector.

[0012] Furthermore, the interior of the rotating shaft joint is hollow and one end is provided with an axial hole corresponding to the rotating shaft, the other end of the rotating shaft joint is provided with a connecting column facing the flexible connector, the flexible connector is provided with a connecting hole corresponding to the connecting column, and the flexible connector and the connecting column are fixedly connected by screws.

[0013] Furthermore, a connecting plate is provided on a side of the second bracket facing the screen body, a cover shell is provided on the connecting plate, and the elastic member is located inside the cover shell.

[0014] Furthermore, support plates are fixedly provided on both sides of the screen body, the two support plates are arranged opposite to each other, the rotating shaft passes through the two support plates, and is rotatably arranged with the two support plates through bearings.

[0015] Furthermore, a shaft sleeve is coaxially arranged on the outer side of the rotating shaft, an oil circuit interface is arranged on the shaft sleeve, and an air filter is arranged on the oil circuit interface.

[0016] Furthermore, a connecting shaft installed with the elastic supporting feet is provided on the outer side of the screen body.

[0017] Furthermore, the elastic supporting foot includes a frame body, a first mounting seat, a rubber spring, a second mounting seat, and a clamping block, the frame body is provided with the first mounting seat, the second mounting seat is located above the first mounting seat, the rubber spring is located between the first mounting seat and the second mounting seat, the rubber spring has a tendency to drive the second mounting seat to move upward, the second mounting seat is provided with a first arc-shaped hole, the clamping block is provided with a second arc-shaped hole opposite to the first arc-shaped hole, the second mounting seat and the clamping block are fixed by screws, and the first arc-shaped hole and the second arc-shaped hole cooperate to form a connecting hole for installing the connecting shaft.

[0018] Furthermore, the pendulum assembly includes a T-shaped pendulum and a counterweight, the T-shaped pendulum is fixedly connected to the rotating shaft, and the counterweight is detachably provided on the T-shaped pendulum.

[0019] Compared with the prior art, the vibration screen of the utility model embodiment has the following beneficial effects: the frame is located outside the screen body, and the frame includes a first bracket and a second bracket, the power assembly is fixed to the fixing plate on the second bracket, the power assembly and the screen body can be disassembled and assembled for hoisting, and are easy to install. When installing the power assembly, a vertically arranged positioning screw is distributed on the first bracket, a mounting plate is provided at the bottom of the second bracket, the positioning screw is clamped in the opening of the mounting plate, and a first adjusting nut and a second adjusting nut are provided on the positioning screw from bottom to top in sequence, and the installation height of the power assembly and the rotating shaft can be adjusted by rotating the first adjusting nut and the second adjusting nut; at the same time, the power assembly includes two groups of power sub-assemblies with the same structure, the power sub-assembly includes a driving motor and a transmission shaft assembly, the driving motor and the transmission shaft assembly are transmitted through a conveyor belt, the driving motor is fixed to the fixing plate through bolts and strip holes, and the transmission shaft assembly is fixed to the fixing plate, and the tightness of the transmission belt can be adjusted by adjusting the installation position of the driving motor in the strip hole to ensure the transmission efficiency of the power assembly and improve the screening efficiency. In addition, the output shaft of the transmission shaft assembly is connected to the rotating shaft through an elastic member to avoid jamming of the power assembly and the rotating shaft during transmission, thereby improving the stability of the vibrating screen during screening. Moreover, the rotating shaft of the vibrator is located above the screen body to avoid affecting the screening efficiency of the screen body. By adjusting the number of counterweights, the distance between the center of mass of the pendulum of the vibrator and the center of mass of the screen body can be adjusted, and the distance between the center of mass of the pendulum of the vibrator and the center of mass of the screen body can be easily adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a vibrating screen according to an embodiment of the utility model;

[0021] Figure 2It is a schematic diagram of the installation of the power assembly of the vibrating screen in the embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the installation of the elastic member of the vibrating screen in the embodiment of the utility model;

[0023] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0024] Figure 5 It is a structural schematic diagram of a pendulum assembly of a vibrating screen according to an embodiment of the utility model;

[0025] Figure 6 It is a schematic structural diagram of the elastic support foot of the vibrating screen according to an embodiment of the utility model.

[0026] In the figure, 1, frame; 11, first bracket; 111, positioning screw; 1111, first adjusting nut; 1112, second adjusting nut; 12, second bracket; 121, mounting plate; 1211, opening; 122, fixing plate; 1221, strip hole; 123, connecting plate; 124, cover; 2, power assembly; 21, power sub-assembly; 211, driving motor; 212, transmission shaft assembly; 3, sieve body; 31, support plate; 32, connecting shaft; 4, elastic supporting foot; 41, frame; 42, first mounting seat; 43 , rubber spring; 44, second mounting seat; 441, first arc-shaped hole; 45, clamping block; 451, second arc-shaped hole; 5, exciter; 51, rotating shaft; 52, pendulum assembly; 521, T-shaped pendulum; 522, counterweight; 53, bushing; 54, oil circuit interface; 55, air filter; 6, elastic member; 61, coupling shaft; 611, coupling shaft body; 612, first connecting flange; 62, flexible connector; 63, sleeve; 631, second connecting flange; 64, rotating shaft joint; 641, connecting column; X, first direction. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. used in the present invention to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred devices and elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0030] like Figure 1 As shown, a vibrating screen of a preferred embodiment of the utility model includes a frame 1, a power assembly 2, a screen body 3, elastic support legs 4, and a vibrator 5. For the convenience of explanation, the inclination direction of the screen body 3 is defined as a first direction. The screen body 3 includes a screen frame, and the screen frame is provided with an upper screen and a lower screen. In the prior art, the rotating shaft of the vibrator 5 is arranged between the upper screen and the lower screen, which affects the screening efficiency. In this embodiment, in order to separate the power assembly 2 from the screen body 3, the power assembly 2 and the screen body 3 can be disassembled and hoisted, which is easy to install. The power assembly 2 is installed on the frame 1, and the frame 1 is located outside the screen body 3. Specifically, refer to Figure 2 The frame 1 includes a first bracket 11 and a second bracket 12. The second bracket 12 is located above the first bracket 11. In order to facilitate the adjustment of the installation height of the power assembly 2 in the vertical direction and to facilitate the connection between the first bracket 11 and the second bracket 12, a vertically arranged positioning screw 111 is distributed on the first bracket 11. The power assembly 2 is installed on the second bracket 12. The second bracket 12 is tilted. A mounting plate 121 is spaced apart at the bottom of the second bracket 12 along the first direction. Openings 1211 corresponding to the positioning screw 111 are opened at both ends of the mounting plate 121. The positioning screw 111 is fixed to the bottom of the second bracket 12. The positioning screw 111 is clamped in the opening 1211. In order to facilitate the fixation of the positioning screw 111 and the mounting plate 121, the positioning screw 111 is provided with a first adjusting nut 1111 and a second adjusting nut 1112 from bottom to top, and the mounting plate 121 is located between the first adjusting nut 1111 and the second adjusting nut 1112. By synchronously adjusting the height of the first adjusting nut 1111 and the second adjusting nut 1112 on each positioning screw 111, the installation height and inclination angle of the second bracket 12 can be fine-tuned to improve the installation accuracy between the powertrain 2 and the exciter 5.

[0031] In addition, further, the power assembly 2 includes two groups of power sub-assemblies 21 with the same structure, and the power sub-assembly 21 includes a driving motor 211 and a transmission shaft assembly 212. The driving motor 211 and the transmission shaft assembly 212 are transmitted through a conveyor belt; in order to facilitate the adjustment of the tightness of the transmission belt between the driving motor 211 and the transmission shaft assembly 212, a fixing plate 122 with the same number and corresponding position as the power sub-assembly 21 is provided on the second bracket 12, and the fixing plate 122 is provided with a strip hole 1221 for the driving motor 21 along the first direction. The driving motor 21 is fixed to the fixing plate 122 by bolts and the strip holes 1221, and the transmission shaft assembly 212 is fixedly connected to the fixing plate 122. By adjusting the distance of the bolts in the strip holes 1221, the installation position of the driving motor 211 can be adjusted, and then the tightness of the transmission belt can be adjusted. In this embodiment, the driving motor 211 and the transmission shaft assembly 212 are common motor transmission structures, so their structure is not described in detail.

[0032] Specifically, see Figure 1 , vibrators 5 are arranged on the screen body 3 along the first direction at intervals. The number of vibrators 5 and the power sub-assembly 21 are the same and their positions correspond. The vibrator 5 includes a rotating shaft 51 and a pendulum assembly 52. ​​The rotating shaft 51 of the vibrator is located above the screen body 3 to avoid affecting the screening efficiency of the screen body 3. The output shaft of the transmission shaft assembly 212 is connected to the rotating shaft 51 through an elastic member 6 to avoid jamming when the power assembly 2 and the rotating shaft 51 are transmitted, thereby improving the stability of the vibrating screen during screening. In order to drive the screen body 3 to vibrate, pendulum assemblies 52 are arranged at both ends of the rotating shaft 51. In this embodiment, the screen body 3 is arranged at an angle, the upper end of the screen body 3 is the feed port, and the lower end of the screen body 3 is the discharge port.

[0033] Further, in order to facilitate the design of the elastic member 6, the output shaft of the power assembly 2 is connected to the rotating shaft 51. Figure 4 In this embodiment, the elastic member 6 includes a coupling shaft 61, a flexible connector 62, a sleeve 63, and a rotating shaft joint 64. The two ends of the coupling shaft 61 are respectively fixed with a sleeve 63 and a rotating shaft joint 64 through the flexible connector 62. The sleeve 63 is used to be key-connected with the output shaft of the power assembly 2, and the rotating shaft joint 64 is used to be fixedly connected with the rotating shaft 51. When the power assembly 2 works, the rotating shaft 51 is driven to rotate, thereby driving the pendulum assembly 52 to rotate.

[0034] Further, in this embodiment, in order to facilitate the design of the coupling shaft 61, refer to Figure 4The coupling shaft 61 includes a coupling shaft body 611, a first connection flange 612, and first connection flanges 612 are fixedly provided at both ends of the coupling shaft body 611. In order to facilitate the connection between the sleeve 63 and the flexible connector 62, a second connection flange 631 for fixing the flexible connector 62 is provided at the end of the sleeve 63. In this embodiment, the flexible connector 62 is made of rubber material, and its shape is hexagonal, which can be directly purchased.

[0035] Furthermore, in this embodiment, refer to Figure 4 The shaft joint 64 is used to connect the elastic member 6 and the shaft 51. To facilitate the positioning of the shaft joint 64 and the shaft 51 when connected, the shaft joint 64 is hollow inside and has a shaft hole corresponding to the shaft 51 at one end. When assembling, the shaft 51 can be inserted into the shaft hole. A threaded hole is provided at the end of the shaft 51, and the shaft 51 and the shaft joint 64 are fixed by screws. In this embodiment, to facilitate the fixed installation of the shaft joint 64 and the flexible connector 62, a connecting column 641 is provided at the other end of the shaft joint 64 toward the flexible connector 62, and a connecting hole corresponding to the connecting column 641 is provided on the flexible connector 62. The flexible connector 62 is fixedly connected to the connecting column 641 by screws.

[0036] Furthermore, in order to prevent impurities from adhering to the surface of the elastic part during screening by the vibrating screen, and to prevent dust from forming on the elastic part, refer to Figure 2 , Figure 3 A connecting plate 123 is provided on the side of the second bracket 12 facing the screen body 3 , a cover shell 124 is provided on the connecting plate 123 , and the elastic member is located in the cover shell 124 .

[0037] In this embodiment, in order to facilitate the installation of the rotating shaft 51 on the screen body 3, refer to Figure 1 Support plates 31 are fixedly provided on both sides of the screen body 3, and the two support plates 31 are arranged opposite to each other. The rotating shaft 51 passes through the two support plates 31 and is rotatably arranged with the two support plates 31 through bearings. Multiple sealing structures such as sealing rings and oil-slinging rings are arranged between the rotating shaft 51 and the bearings to prevent the rotating shaft 51 from getting stuck when rotating. This is a conventional setting of the vibrating screen equipment, so its specific structure is not described in detail.

[0038] Furthermore, in this embodiment, in order to facilitate the protection of the rotating shaft 51 when it rotates, refer to Figure 3 A shaft sleeve 53 is coaxially arranged on the outer side of the rotating shaft 51, an oil circuit interface 54 is arranged on the shaft sleeve 53, and an air filter 55 is arranged on the oil circuit interface 54 to prevent air with foreign particles from entering the rotating shaft 51 when the vibrating screen is working, causing wear of the internal parts of the rotating shaft 51.

[0039] Further, in this embodiment, in order to facilitate the connection between the screen body 3 and the elastic support foot 4, refer to Figure 6, a connecting shaft 32 installed with the elastic support foot 4 is provided on the outside of the screen body 3. In this embodiment, specifically, the elastic support foot 4 includes a frame body 41, a first mounting seat 42, a rubber spring 43, a second mounting seat 44, and a clamping block 45, wherein the frame body 41 is used to contact with the bottom surface to form a support, a first mounting seat 42 is provided on the frame body 41, and the second mounting seat 44 is located above the first mounting seat 42, and the rubber spring 43 is located between the first mounting seat 42 and the second mounting seat 44, and the rubber spring 43 has a tendency to drive the second mounting seat 44 to move upward, and the rubber spring 43 is used for shock absorption when the vibrating screen vibrates, and further, in order to facilitate the fixation with the connecting shaft 32, a first arc hole 441 is provided on the second mounting seat 44, and a second arc hole 451 opposite to the first arc hole 441 is provided on the clamping block 45, and the second mounting seat 44 and the clamping block 45 are fixed by screws, and the first arc hole 441 and the second arc hole 451 cooperate to form a positioning hole for installing the connecting shaft 32.

[0040] Furthermore, in the present embodiment, the pendulum assembly 52 includes a T-shaped pendulum 521 and a counterweight 522, wherein the T-shaped pendulum 521 is fixedly connected to the rotating shaft 51. In order to facilitate the adjustment of the overall weight of the pendulum assembly 52, a detachable counterweight 522 is provided on the T-shaped pendulum 521. The number and weight of the counterweight 522 can be adjusted according to actual screening requirements, thereby adjusting the distance between the center of mass of the pendulum of the exciter and the center of mass of the screen body.

[0041] In summary, the embodiment of the utility model provides a vibrating screen, wherein the frame 1 is located outside the screen body 3, and the frame 1 includes a first bracket 11 and a second bracket 12, the power assembly 2 is fixedly mounted on a fixing plate 122 on the second bracket 12, the power assembly 2 and the screen body 3 can be disassembled and hoisted, and are easy to install. When installing the power assembly 2, a vertically arranged positioning screw 111 is distributed on the first bracket 11, a mounting plate 121 is provided at the bottom of the second bracket 12, the positioning screw 111 is clamped in an opening 1211 of the mounting plate 121, and a first adjusting nut 1111 and a second adjusting nut 1112 are sequentially arranged on the positioning screw 111 from bottom to top, and the first adjusting nut 1111 and the second adjusting nut 1112 are adjusted by rotating the first adjusting screw 1111. The joint nut 1111 and the second adjustment nut 1112 can adjust the installation height of the power assembly 2 and the rotating shaft 51; at the same time, the power assembly 2 includes two groups of power sub-assemblies 21 with the same structure, and the power sub-assembly 21 includes a driving motor 211 and a transmission shaft assembly 212. The driving motor 211 and the transmission shaft assembly 212 are transmitted through a conveyor belt. The driving motor 211 is fixed to the fixing plate 122 through bolts and strip holes 1221, and the transmission shaft assembly 212 is fixed to the fixing plate 122. The installation position of the driving motor 211 in the strip hole 1221 can be adjusted to adjust the tightness of the transmission belt to ensure the transmission efficiency of the power assembly 2 and improve the screening efficiency. In addition, the output shaft of the power assembly 2 is connected to the rotating shaft 51 through an elastic member 6 to avoid jamming when the power assembly 2 and the rotating shaft 51 are transmitted, thereby improving the stability of the vibrating screen during screening. Moreover, the rotating shaft 51 of the vibrator 5 is located above the screen body 2 to avoid affecting the screening efficiency of the screen body 2. By adjusting the number of counterweight blocks 522, the distance between the center of mass of the pendulum of the vibrator and the center of mass of the screen body is adjusted, and the distance between the center of mass of the pendulum of the vibrator and the center of mass of the screen body is easy to adjust.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A vibrating screen, characterized in that: It includes a frame, a power assembly, a screen body, elastic support feet, and a vibrator; The frame is located outside the screen body, the frame includes a first bracket and a second bracket, the second bracket is located above the first bracket, a vertically arranged positioning screw is distributed on the first bracket, the second bracket is inclined, a mounting plate is spaced along the first direction at the bottom of the second bracket, openings corresponding to the positioning screw are opened at both ends of the mounting plate, the positioning screw is clamped in the opening, a first adjusting nut and a second adjusting nut are arranged on the positioning screw from bottom to top, and the mounting plate is located between the first adjusting nut and the second adjusting nut; The power assembly includes two groups of power sub-assemblies with the same structure, and the power sub-assembly includes a drive motor and a transmission shaft assembly, and the drive motor and the transmission shaft assembly are driven by a conveyor belt; The second bracket is provided with fixing plates of the same number and corresponding position as the power sub-assembly, the fixing plates are provided with strip holes for installing the drive motors along the first direction, the drive motors are fixed to the fixing plates through bolts and the strip holes; the transmission shaft assembly is fixedly connected to the fixing plates; The vibrators are arranged on the sieve body at intervals along the first direction. The number of the vibrators is the same as that of the power sub-assembly and their positions correspond. The vibrator comprises a rotating shaft and a pendulum assembly. The rotating shaft is located above the sieve body. The output shaft of the transmission shaft assembly is connected to the rotating shaft through an elastic member. Pendulum assemblies are arranged at both ends of the rotating shaft.

2. The vibrating screen according to claim 1, characterized in that: The elastic member includes a coupling shaft, a flexible connector, a sleeve, and a rotating shaft joint. The sleeve and the rotating shaft joint are respectively fixed to both ends of the coupling shaft through the flexible connector. The sleeve is used to be key-connected with the output shaft of the power assembly, and the rotating shaft joint is used to be fixedly connected with the rotating shaft. When the power assembly works, the rotating shaft is driven to rotate, thereby driving the pendulum assembly to rotate.

3. The vibrating screen according to claim 2, characterized in that: The coupling shaft comprises a coupling shaft body and a first connecting flange. Both ends of the coupling shaft body are fixedly provided with the first connecting flanges. The end of the sleeve is provided with a second connecting flange for fixing with the flexible connector.

4. The vibrating screen according to claim 2, characterized in that: The rotating shaft joint is hollow inside and has an axial hole corresponding to the rotating shaft at one end. The other end of the rotating shaft joint is provided with a connecting column facing the flexible connector. The flexible connector is provided with a connecting hole corresponding to the connecting column. The flexible connector and the connecting column are fixedly connected by screws.

5. The vibrating screen according to claim 2, characterized in that: A connecting plate is disposed on a side of the second bracket facing the screen body, a cover shell is disposed on the connecting plate, and the elastic member is located inside the cover shell.

6. The vibrating screen according to claim 1, characterized in that: Support plates are fixedly provided on both sides of the screen body, the two support plates are arranged opposite to each other, the rotating shaft passes through the two support plates, and is rotatably arranged with the two support plates through bearings.

7. The vibrating screen according to claim 6, characterized in that: A shaft sleeve is coaxially arranged on the outer side of the rotating shaft, an oil circuit interface is arranged on the shaft sleeve, and an air filter is arranged on the oil circuit interface.

8. The vibrating screen according to claim 1, characterized in that: A connecting shaft installed with the elastic supporting foot is provided on the outer side of the screen body.

9. The vibrating screen according to claim 8, characterized in that: The elastic supporting foot includes a frame body, a first mounting seat, a rubber spring, a second mounting seat, and a clamping block. The first mounting seat is provided on the frame body, the second mounting seat is located above the first mounting seat, the rubber spring is located between the first mounting seat and the second mounting seat, and the rubber spring has a tendency to drive the second mounting seat to move upward. The second mounting seat is provided with a first arc-shaped hole, and the clamping block is provided with a second arc-shaped hole opposite to the first arc-shaped hole. The second mounting seat and the clamping block are fixed by screws, and the first arc-shaped hole and the second arc-shaped hole cooperate to form a connecting hole for installing the connecting shaft.

10. The vibrating screen according to claim 1, characterized in that: The pendulum assembly comprises a T-shaped pendulum and a counterweight. The T-shaped pendulum is fixedly connected to the rotating shaft, and the counterweight is detachably provided on the T-shaped pendulum.