Anti-blocking mechanism of concrete vibrating screen

Abstract

The utility model discloses a concrete vibrating screen anti-blocking mechanism which comprises a driving assembly and two connecting shafts, conveying rollers are fixedly arranged on the circumferential outer walls of the two connecting shafts, the outer walls of the two conveying rollers are sleeved with belt type screen cloth used for transmission, first synchronizing wheels are fixedly arranged at the ends of the two connecting shafts, and second synchronizing wheels are fixedly arranged at the ends of the two connecting shafts. The outer walls of the two first synchronous wheels are both sleeved with first synchronous belts used for transmission, and the output end of the driving assembly is fixedly connected with one connecting shaft. One of the connecting shafts is driven by the driving motor to rotate, and the two connecting shafts are driven by the first synchronous wheel and the first synchronous belt, so that synchronous rotation is realized, concrete raw materials can be screened in the moving process, and particle raw materials blocked in meshes of the belt-type screen mesh are separated from each other through the first synchronous wheel and the first synchronous belt. And when being extruded by the outer wall of the conveying roller, the belt-type screen mesh can fall off from the interior of the mesh holes, so that the belt-type screen mesh can be prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to an anti-blocking mechanism for a concrete vibrating screen. Background Technique

[0002] A concrete vibrating screen is a device that works by using the reciprocating spiral vibration generated by the excitation of vibrators. The vibrators usually consist of eccentric wheels and rotate driven by an electric motor, thereby causing the screen frame to vibrate. In concrete construction and concrete production plants, the concrete vibrating screen is mainly used for screening concrete raw materials to ensure the quality and uniformity of concrete. It can screen concrete particles according to particle size, remove impurities, ensure construction quality, and improve production efficiency.

[0003] The existing screen structure on the concrete vibrating screen is relatively simple, usually a simple metal mesh structure. When screening concrete raw materials, some particles with sizes close to the metal mesh aperture will get stuck in the mesh holes, resulting in a reduced screening efficiency of the screen in the later stage. For this reason, we propose an anti-blocking mechanism for a concrete vibrating screen. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is that the existing screen structure on the concrete vibrating screen is relatively simple, usually a simple metal mesh structure. When screening concrete raw materials, some particles with sizes close to the metal mesh aperture will get stuck in the mesh holes, resulting in a reduced screening efficiency of the screen in the later stage.

[0005] To solve the above technical problem, the utility model provides the following technical solution: an anti-blocking mechanism for a concrete vibrating screen, including a driving component and two connecting shafts. Conveyor rollers are fixedly arranged on the circumferential outer walls of the two connecting shafts. A belt-type screen for transmission is sleeved on the outer walls of the two conveyor rollers. First synchronous wheels are fixedly arranged at the ends of the two connecting shafts. First synchronous belts for transmission are sleeved on the outer walls of the two first synchronous wheels. The output end of the driving component is fixedly connected to one of the connecting shafts.

[0006] As a preferred scheme of the anti-blocking mechanism for the concrete vibrating screen of the utility model, wherein: the driving component includes a fixed seat, a driving motor is fixedly arranged at the bottom of the fixed seat, and the output end of the driving motor is fixedly connected to one of the connecting shafts.

[0007] As a preferred scheme of the anti-blocking mechanism for the concrete vibrating screen of the utility model, wherein: it further includes a mounting plate, fixing plates are respectively fixedly arranged at both ends of the mounting plate, connecting rods are fixedly arranged on the relatively close sides of the two fixing plates, and both ends of the two connecting shafts respectively penetrate through the two fixing plates and are rotatably connected thereto.

[0008] As a preferred solution of the anti-blocking mechanism of the concrete vibrating screen of the present utility model, wherein: a fixed shaft is rotatably connected to the relatively close sides of the two fixing plates, and both ends of the fixed shaft penetrate through the two fixing plates and extend to the outside thereof.

[0009] As a preferred solution of the anti-blocking mechanism of the concrete vibrating screen of the present utility model, wherein: a second synchronous pulley is fixedly provided at the outer end of one of the connecting shafts and the fixed shaft, and a second synchronous belt for transmission is sleeved on the outer walls of the two second synchronous pulleys.

[0010] As a preferred solution of the anti-blocking mechanism of the concrete vibrating screen of the present utility model, wherein: two cleaning sleeves are installed on the circumferential outer wall of the fixed shaft, and connecting sleeves are fixedly provided at the ends of the two cleaning sleeves, and the two connecting sleeves on the same side are connected by bolts.

[0011] As a preferred solution of the anti-blocking mechanism of the concrete vibrating screen of the present utility model, wherein: docking grooves are formed in the inner walls of the plurality of connecting sleeves.

[0012] As a preferred solution of the anti-blocking mechanism of the concrete vibrating screen of the present utility model, wherein: two limiting blocks are symmetrically provided on the outer walls of both ends of the fixed shaft, and the outer ends of the limiting blocks are clamped and matched with the inner walls of the docking grooves.

[0013] The beneficial effects of the present utility model:

[0014] 1. By installing the anti-blocking mechanism on the vibrating screen equipment, through the exciting force generated by the vibrating motor, the anti-blocking mechanism generates high-frequency vibration. The concrete raw materials are screened by the belt-type screen on the anti-blocking mechanism. By driving the motor to drive one of the connecting shafts to rotate, the two connecting shafts are driven by the first synchronous pulley and the first synchronous belt to achieve synchronous rotation, so that the concrete raw materials can be screened during the moving process. The granular raw materials blocked in the mesh holes of the belt-type screen can fall off from the mesh holes when being extruded by the outer wall of the conveying roller, thus avoiding the blockage of the belt-type screen.

[0015] 2. When one of the connecting shafts rotates, the fixed shaft can be driven to rotate through the second synchronous pulley and the second synchronous belt. The two cleaning sleeves are driven to rotate by the fixed shaft, and the two cleaning sleeves can rub against the outer wall of the belt-type screen, so as to further clean the granular raw materials blocked in the mesh holes of the belt-type screen.

[0016] 3. By disassembling the bolts on the connecting sleeve, the two cleaning sleeves can be disassembled from the fixed shaft, which is convenient for the installation and disassembly of the cleaning sleeves. Through the limiting blocks at both ends of the fixed shaft, by clamping the limiting blocks with the docking grooves inside the connecting sleeve, the installation stability of the cleaning sleeve and the fixed shaft can be improved, and the situation of the cleaning sleeve slipping can be avoided. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the partial structure of the present utility model;

[0019] Figure 3 is a schematic diagram of the installation structure of the second synchronous pulley of the present utility model;

[0020] Figure 4 is a schematic diagram of the installation structure of the cleaning sleeve of the present utility model.

[0021] In the figure: 1, mounting plate; 2, fixing plate; 3, connecting shaft; 4, conveying roller; 5, connecting rod; 6, belt-type screen; 7, fixing seat; 8, driving motor; 9, first synchronous pulley; 10, first synchronous belt; 11, fixing shaft; 12, second synchronous pulley; 13, second synchronous belt; 14, cleaning sleeve; 15, connecting sleeve; 16, docking groove; 17, limiting block. Detailed Description of the Preferred Embodiment

[0022] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings of the specification.

[0023] As Figure 1 、 Figure 2 and Figure 3 shown, a concrete vibrating screen anti-blocking mechanism includes a driving assembly and two connecting shafts 3. Conveying rollers 4 are fixedly arranged on the circumferential outer walls of the two connecting shafts 3. A belt-type screen 6 for transmission is sleeved on the outer walls of the two conveying rollers 4. First synchronous pulleys 9 are fixedly arranged at the ends of the two connecting shafts 3. First synchronous belts 10 for transmission are sleeved on the outer walls of the two first synchronous pulleys 9. The output end of the driving assembly is fixedly connected to one of the connecting shafts 3. The driving assembly includes a fixing seat 7. A driving motor 8 is fixedly arranged at the bottom of the fixing seat 7. The output end of the driving motor 8 is fixedly connected to one of the connecting shafts 3. By installing the anti-blocking mechanism on the vibrating screen device, through the exciting force generated by the vibrating motor, the anti-blocking mechanism generates high-frequency vibration. The concrete raw materials are screened by the belt-type screen 6 on the anti-blocking mechanism. By driving one of the connecting shafts 3 to rotate by the driving motor 8, the two connecting shafts 3 are driven to rotate synchronously through the first synchronous pulleys 9 and the first synchronous belts 10, so as to enable the concrete raw materials to be screened during the moving process. The granular raw materials blocked inside the mesh holes of the belt-type screen 6 can fall off from the mesh holes when being extruded by the outer wall of the conveying roller 4, thereby avoiding the blockage of the belt-type screen 6.

[0024] As Figure 2 and Figure 3As shown, it further includes a mounting plate 1. Fixed plates 2 are fixedly provided at both ends of the mounting plate 1. A connecting rod 5 is fixedly provided on one side of the two fixed plates 2 close to each other. Both ends of the two connecting shafts 3 penetrate through the two fixed plates 2 and are rotatably connected thereto. A fixed shaft 11 is rotatably connected to one side of the two fixed plates 2 close to each other. Both ends of the fixed shaft 11 penetrate through the two fixed plates 2 and extend to the outside thereof.

[0025] As Figure 3 and Figure 4 shown, second synchronous pulleys 12 are fixedly provided at the outer ends of one of the connecting shafts 3 and the fixed shaft 11. A second synchronous belt 13 for transmission is sleeved on the outer walls of the two second synchronous pulleys 12. Two cleaning sleeves 14 are installed on the circumferential outer wall of the fixed shaft 11. Connecting sleeves 15 are fixedly provided at the ends of the two cleaning sleeves 14. The two connecting sleeves 15 on the same side are connected by bolts. When one of the connecting shafts 3 rotates, the fixed shaft 11 can be driven to rotate through the second synchronous pulley 12 and the second synchronous belt 13. The two cleaning sleeves 14 are driven to rotate through the fixed shaft 11. Friction can be generated between the two cleaning sleeves 14 and the outer wall of the belt screen 6, so that the granular raw materials blocked inside the mesh holes of the belt screen 6 can be further cleaned.

[0026] As Figure 4 shown, docking grooves 16 are formed in the inner walls of the plurality of connecting sleeves 15. Two limiting blocks 17 are symmetrically provided on the outer walls at both ends of the fixed shaft 11. The outer ends of the limiting blocks 17 are clamped and matched with the inner walls of the docking grooves 16. By disassembling the bolts on the connecting sleeves 15, the two cleaning sleeves 14 can be disassembled from the fixed shaft 11, so as to facilitate the installation and disassembly of the cleaning sleeves 14. Through the limiting blocks 17 at both ends of the fixed shaft 11, by clamping the limiting blocks 17 with the docking grooves 16 inside the connecting sleeves 15, the installation stability of the cleaning sleeves 14 and the fixed shaft 11 can be improved, and the situation of the cleaning sleeves 14 slipping can be avoided.

[0027] Working principle: By installing the anti-blocking mechanism on the vibrating screen device, the anti-blocking mechanism generates high-frequency vibration through the exciting force generated by the vibrating motor. The belt screen 6 on the anti-blocking mechanism is used to screen the concrete raw materials. One of the connecting shafts 3 is driven to rotate by the driving motor 8, and the two connecting shafts 3 are driven by the first synchronous pulley 9 and the first synchronous belt 10 to achieve synchronous rotation, so that the concrete raw materials can be screened during the moving process. The granular raw materials blocked inside the mesh holes of the belt screen 6 can fall off from the mesh holes when being extruded by the outer wall of the conveying roller 4, so that the belt screen 6 can be prevented from being blocked;

[0028] When one of the connecting shafts 3 rotates, the fixed shaft 11 can be driven to rotate through the second synchronous pulley 12 and the second synchronous belt 13. The two cleaning sleeves 14 can be driven to rotate through the fixed shaft 11, and the outer wall of the belt screen 6 can be rubbed by the two cleaning sleeves 14, so as to further clean the granular raw materials blocked inside the mesh holes of the belt screen 6.

[0029] By removing the bolts on the connecting sleeve 15, the two cleaning sleeves 14 can be removed from the fixed shaft 11, which is convenient for the installation and removal of the cleaning sleeves 14. Through the limit blocks 17 at both ends of the fixed shaft 11, and by engaging the limit blocks 17 with the docking grooves 16 inside the connecting sleeve 15, the stability of the installation of the cleaning sleeves 14 and the fixed shaft 11 can be improved, and the situation of the cleaning sleeves 14 slipping can be avoided.

[0030] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete vibrating screen anti-blocking mechanism, comprising a driving assembly and two connecting shafts (3), characterized in that: A conveying roller (4) is fixedly arranged on the circumferential outer wall of each of the two connecting shafts (3). A belt-shaped screen (6) for transmission is sleeved on the outer walls of the two conveying rollers (4). A first synchronous pulley (9) is fixedly arranged at each end of the two connecting shafts (3). A first synchronous belt (10) for transmission is sleeved on the outer walls of the two first synchronous pulleys (9). The output end of the driving assembly is fixedly connected to one of the connecting shafts (3).

2. The anti-blocking mechanism of the concrete vibrating screen according to claim 1, characterized in that: The driving assembly includes a fixed seat (7). A driving motor (8) is fixedly arranged at the bottom of the fixed seat (7). The output end of the driving motor (8) is fixedly connected to one of the connecting shafts (3).

3. The anti-clogging mechanism of the concrete vibrating screen according to claim 1, characterized in that: It further includes a mounting plate (1). Fixing plates (2) are respectively fixedly arranged at both ends of the mounting plate (1). A connecting rod (5) is fixedly arranged on the side of the two fixing plates (2) that are relatively close to each other. Both ends of the two connecting shafts (3) respectively penetrate through the two fixing plates (2) and are rotatably connected thereto.

4. The anti-blocking mechanism of the concrete vibrating screen according to claim 3, characterized in that: A fixed shaft (11) is rotatably connected to the side of the two fixing plates (2) that are relatively close to each other. Both ends of the fixed shaft (11) respectively penetrate through the two fixing plates (2) and extend to the outside thereof.

5. The anti-blocking mechanism of the concrete vibrating screen according to claim 1, wherein: A second synchronous pulley (12) is fixedly arranged at the outer ends of one of the connecting shafts (3) and the fixed shaft (11). A second synchronous belt (13) for transmission is sleeved on the outer walls of the two second synchronous pulleys (12).

6. The anti-clogging mechanism of the concrete vibrating screen according to claim 5, wherein: Two cleaning sleeves (14) are installed on the circumferential outer wall of the fixed shaft (11). Connecting sleeves (15) are fixedly arranged at the ends of the two cleaning sleeves (14). The two connecting sleeves (15) on the same side are connected by bolts.

7. The anti-blocking mechanism of the concrete vibrating screen according to claim 6, characterized in that: Docking grooves (16) are formed in the inner walls of the plurality of connecting sleeves (15).

8. The anti-clogging mechanism of the concrete vibrating screen according to claim 7, characterized in that: Two limiting blocks (17) are symmetrically arranged on the outer walls at both ends of the fixed shaft (11). The outer ends of the limiting blocks (17) are in clamping fit with the inner walls of the docking grooves (16).

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