Screen tray driving device for vibrating screen

Abstract

The utility model discloses a sieve tray driving device for a vibrating sieve, which relates to the technical field of vibrating motors and comprises a motor body, a base is fixedly mounted at the lower end of the motor body, a rotating shaft is fixedly mounted on a rotor in the motor body, and two ends of the rotating shaft respectively penetrate through one end of the motor body, extend to the outside of the motor body and are fixedly provided with limiting shafts. A plurality of fixed balancing weights are movably installed on the limiting shaft, a plurality of movable eccentric blocks are further arranged on the limiting shaft and located on one side of the fixed balancing weights, the movable eccentric blocks are fixedly installed on the limiting shaft through end caps, and the end caps are fixedly installed at one end of the limiting shaft through fixing screws A. The limiting shafts are fixedly installed at the two ends of the rotating shaft respectively, the eccentric angle of the fixed balancing weight can be adjusted and limited in a multi-amplitude mode through the cooperation of the fixed balancing weight and the movable eccentric block, and due to the arrangement of the end caps and the fixing screws A, the fixed balancing weights can be rapidly limited and fixed when different numbers of fixed balancing weights are installed on the limiting shafts.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration motors, in particular to a screen plate driving device for a vibration screen. Background Art

[0002] The driving device of the vibrating screen is an important part of the vibrating screen. It is responsible for providing the vibration power required by the screen so that the material can be screened effectively. Common vibrating screen driving devices include electromagnetic vibrators and motor vibrators.

[0003] The motor vibrator uses an electric motor to drive the eccentric block to rotate, generate centrifugal force and vibration force, and make the entire screen vibrate. The function of adjusting the eccentric block angle of the vibration motor is mainly to change the vibration direction and vibration frequency of the vibration motor to achieve different exciting force effects. When the eccentric block needs to be replaced, the operation is often complicated, and it is difficult to quickly complete the disassembly and assembly of the eccentric block. Therefore, the existing Chinese utility model patent disclosed by the publication number CN217010596U: a vibration motor eccentric block accessory, when the eccentric block is installed on the rotating shaft, the positioning groove on the eccentric block is first controlled to be nested and combined with the positioning key, and slide along the positioning key and the limit plate Fitting, by inserting the fixing key on the fixing seat into the sliding through hole, so as to fix the fixing key and the fixing groove on the rotating shaft, when the positioning groove on the eccentric block is nested and combined with the positioning key on the rotating shaft, it can be ensured that the fixing screw and the mounting through hole are nested and inserted, and the fixing nut is screwed on the fixing screw to perform secondary fixation on the eccentric block. Firstly, when the eccentric block is inserted and installed on the rotating shaft in this application, its installation angle is limited and it is impossible to adjust the amplitude of multiple amplitudes. Secondly, it is impossible to quickly assemble and connect multiple eccentric blocks in this application, and quickly fix them on the rotating shaft. The installation and adjustment method of multiple eccentric blocks is not efficient. Utility Model Content

[0004] The utility model aims to provide a screen plate driving device for a vibrating screen, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A sieve plate driving device for a vibrating screen comprises a motor body, a base is fixedly mounted on the lower end of the motor body, a rotating shaft is fixedly mounted on the rotor in the motor body, and both ends of the rotating shaft respectively pass through one end of the motor body to extend to the outside of the motor body and are fixedly mounted with a limiting shaft, a plurality of fixed counterweight blocks are movably mounted on the limiting shaft, and a plurality of movable eccentric blocks are also arranged on the limiting shaft on one side of the fixed counterweight block, the movable eccentric blocks are fixedly mounted on the limiting shaft through end caps, and the end caps are fixedly mounted on one end of the limiting shaft through fixing screws A, and protective covers are also fixedly mounted on both ends of the motor body.

[0007] As a further optimization solution of the utility model, the longitudinal cross-section of the limiting shaft is a regular tetradecagon, and a screw groove is provided at the center position of one end of the limiting shaft.

[0008] As a further optimization scheme of the utility model, a limiting hole A is opened in the fixed counterweight block, the longitudinal section of the limiting hole A is also a regular tetradecagon, and the fixed counterweight block is installed on the limiting shaft through the limiting hole A.

[0009] As a further optimization solution of the utility model, a dial is fixedly installed on one side of the fixed counterweight block, and the amplitude of the sieve plate can be adjusted by means of the matching conditions of the fixed counterweight block and the movable eccentric block.

[0010] As a further optimization scheme of the utility model, a limiting hole B is provided in the movable eccentric block, and the longitudinal cross-section of the limiting hole B is also a regular tetradecagon. A plurality of mounting holes A are provided in the movable eccentric block located below the limiting hole B. A limiting groove A is provided on one side of the mounting hole A, and the two movable eccentric blocks are fixedly connected by two fixing screws B. The movable eccentric block is also installed on the limiting shaft located on one side of the fixed counterweight block through the limiting hole B.

[0011] As a further optimization scheme of the utility model, a limiting groove B is provided on the inner side of the end cap, and the longitudinal cross-section of the limiting groove B is also a regular tetragon. A mounting hole B is also provided at the center position of one end of the end cap. The end cap is installed on the limiting shaft located on one side of the movable eccentric block through the limiting groove B, and one end of the fixing screw A passes through the mounting hole B and is threadedly connected in the screw groove. Through the arrangement of the end cap and the fixing screw A, it is possible to fix the movable eccentric blocks when different numbers of movable eccentric blocks are installed on the limiting shaft.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a sieve plate driving device for a vibrating screen, in which a limiting shaft is fixedly installed at each end of a rotating shaft, and the eccentric angle of the fixed counterweight block can be adjusted and limited in multiple amplitudes through the cooperation of the fixed counterweight block and the movable eccentric block, and the arrangement of the end cap and the fixing screw A can quickly limit and fix the fixed counterweight blocks when different numbers of them are installed on the limiting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the disassembly of the rotating shaft, the fixed counterweight block and the movable eccentric block structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure of multiple movable eccentric blocks of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the movable eccentric block of the utility model;

[0018] Figure 5 It is a schematic diagram of the disassembly of the end cap structure of the utility model.

[0019] In the figure: 1. Motor body; 2. Base; 3. Rotating shaft; 4. Fixed counterweight; 5. Movable eccentric block; 6. End cap; 7. Fixing screw A; 8. Protective cover; 9. Limiting shaft; 10. Screw groove; 11. Limiting hole A; 12. Dial; 13. Limiting hole B; 14. Mounting hole A; 15. Limiting slot A; 16. Fixing screw B; 17. Limiting slot B; 18. Mounting hole B. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-Figure 5 As shown, the utility model provides a sieve plate driving device for a vibrating screen, including a motor body 1, a base 2 is fixedly installed at the lower end of the motor body 1, a rotating shaft 3 is fixedly installed on the rotor in the motor body 1, and both ends of the rotating shaft 3 respectively pass through one end of the motor body 1 to extend to the outside of the motor body 1 and are fixedly installed with a limiting shaft 9, a plurality of fixed counterweight blocks 4 are movably installed on the limiting shaft 9, and the limiting shaft 9 located on one side of the fixed counterweight block 4 is also provided with a plurality of movable eccentric blocks 5, the movable eccentric blocks 5 are fixedly installed on the limiting shaft 9 through end caps 6, and the end caps 6 are fixedly installed on one end of the limiting shaft 9 through fixing screws A7, and protective covers 8 are also fixedly installed at both ends of the motor body 1.

[0022] like Figure 1-Figure 2 As shown, the longitudinal section of the limiting shaft 9 is a regular tetradecagon, a screw groove 10 is provided at the center of one end of the limiting shaft 9, a limiting hole A11 is provided in the fixed counterweight block 4, the longitudinal section of the limiting hole A11 is also a regular tetradecagon, and the fixed counterweight block 4 is inserted and installed on the limiting shaft 9 through the limiting hole A11, and a dial 12 is also fixedly installed on one side of the fixed counterweight block 4. With the help of the matching conditions of the fixed counterweight block 4 and the movable eccentric block 5, the amplitude of the sieve plate can be adjusted;

[0023] like Figure 1-Figure 4As shown, a limiting hole B13 is provided in the movable eccentric block 5, and the longitudinal section of the limiting hole B13 is also a regular tetradecagon. A plurality of mounting holes A14 are provided in the movable eccentric block 5 located below the limiting hole B13, and a limiting groove A15 is provided on one side of the mounting hole A14. The two movable eccentric blocks 5 are fixedly connected by two fixing screws B16. The movable eccentric block 5 is also installed on the limiting shaft 9 located on one side of the fixed counterweight block 4 through the limiting hole B13.

[0024] like Figure 2 , Figure 5 As shown, a limiting groove B17 is provided on the inner side of the end cap 6, and the longitudinal section of the limiting groove B17 is also a regular tetragon. A mounting hole B18 is also provided at the center position of one end of the end cap 6. The end cap 6 is installed on the limiting shaft 9 located on one side of the movable eccentric block 5 through the limiting groove B17, and one end of the fixing screw A7 passes through the mounting hole B18 and is threadedly connected in the screw groove 10. Through the arrangement of the end cap 6 and the fixing screw A7, when different numbers of movable eccentric blocks 5 are installed on the limiting shaft 9, the movable eccentric blocks 5 can be fixed.

[0025] It should be noted that the utility model is a sieve plate driving device for a vibrating screen. When replacing the fixed counterweight 4, an appropriate number of movable eccentric blocks 5 can be selected according to actual vibration requirements and combined through the fixing screws B16, and the four mounting holes A14 opened in the movable eccentric block 5 can ensure the staggered fixation of multiple movable eccentric blocks 5 when connected. Then, the movable eccentric block 5 is inserted and installed on the limiting shaft 9 through the limiting hole B13, and the end cap 6 is inserted and installed on one end of the limiting shaft 9. At this time, the fixing screw A7 can be rotated by a tool, so that one end of the fixing screw A7 is gradually screwed into the screw groove 10, so that it can cooperate with the end cap 6 to contact one side of the movable eccentric blocks 5, and then the movable eccentric block 5 and the fixed counterweight 4 are fixed on the limiting shaft 9, and the angle adjustment and quantity replacement of the movable eccentric block 5 can be quickly completed.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A sieve plate driving device for a vibrating screen, characterized in that: It comprises a motor body (1), a base (2) is fixedly mounted on the lower end of the motor body (1), a rotating shaft (3) is fixedly mounted on the rotor in the motor body (1), and both ends of the rotating shaft (3) respectively pass through one end of the motor body (1) to extend to the outside of the motor body (1) and are fixedly mounted with a limit shaft (9); A plurality of fixed counterweight blocks (4) are movably mounted on the limiting shaft (9); a plurality of movable eccentric blocks (5) are also arranged on the limiting shaft (9) on one side of the fixed counterweight blocks (4); the movable eccentric blocks (5) are fixedly mounted on the limiting shaft (9) via end caps (6); and the end caps (6) are fixedly mounted on one end of the limiting shaft (9) via fixing screws A (7); and protective covers (8) are also fixedly mounted on both ends of the motor body (1).

2. A sieve plate driving device for a vibrating screen according to claim 1, characterized in that: The longitudinal cross-section of the limiting shaft (9) is a regular tetradecagon, and a screw groove (10) is provided at the center of one end of the limiting shaft (9).

3. A sieve plate driving device for a vibrating screen according to claim 2, characterized in that: A limiting hole A (11) is provided in the fixed counterweight block (4), the longitudinal section of the limiting hole A (11) is also a regular tetradecagon, and the fixed counterweight block (4) is installed on the limiting shaft (9) through the limiting hole A (11).

4. A sieve plate driving device for a vibrating screen according to claim 3, characterized in that: A scale plate (12) is also fixedly mounted on one side of the fixed counterweight block (4).

5. A sieve plate driving device for a vibrating screen according to claim 4, characterized in that: A limiting hole B (13) is provided in the movable eccentric block (5), and the longitudinal section of the limiting hole B (13) is also a regular tetradecagon. A plurality of mounting holes A (14) are provided in the movable eccentric block (5) located below the limiting hole B (13). A limiting groove A (15) is provided on one side of the mounting hole A (14), and two movable eccentric blocks (5) are fixedly connected by two fixing screws B (16). The movable eccentric block (5) is also installed on a limiting shaft (9) located on one side of the fixed counterweight block (4) through the limiting hole B (13).

6. A sieve plate driving device for a vibrating screen according to claim 5, characterized in that: A limiting groove B (17) is provided on the inner side of the end cap (6), and the longitudinal cross-section of the limiting groove B (17) is also a regular tetradecagon. A mounting hole B (18) is also provided at the center position of one end of the end cap (6). The end cap (6) is installed on the limiting shaft (9) located on one side of the movable eccentric block (5) through the limiting groove B (17), and one end of the fixing screw A (7) passes through the mounting hole B (18) and is threadedly connected in the screw groove (10).

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