Cleaning device for fine grillage machine

Abstract

The utility model discloses a fine grillage machine cleaning device, and relates to the technical field of sewage treatment. The cleaning device for the fine grillage machine comprises a driving shaft connected to the end of a rotating shaft of the fine grillage machine, two parallel supporting plates and a cleaning brush. The fine grillage machine rotating shaft is coaxially connected with the driving shaft, the two supporting plates are located on the two sides of the lower portion of the fine grillage machine rotating shaft, a driven shaft assembly is arranged between the two supporting plates, the driven shaft assembly is in transmission connection with the driving shaft, and the outer wall of the driven shaft assembly is sleeved with a cleaning roller. The cleaning brush is arranged on the outer wall of the cleaning roller, the cleaning brush is arranged in the axis direction of the cleaning roller, and the cleaning brush is in contact with fine grillage rake teeth on the surface of a rotating shaft of the fine grillage machine. The slag removal amount of the fine screen can be greatly increased, the abrasion of solid slag to equipment such as a water impeller, an inner reflux pump and an outer reflux pump in a subsequent oxidation ditch is effectively reduced, and the oxidation ditch and the surface of a secondary sedimentation tank are cleaner. And the manual cleaning and fishing cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a fine grid machine cleaning device. Background Art

[0002] Fine screen machine is a special water treatment equipment that can continuously and automatically intercept and remove various shapes of debris in the fluid. It can be widely used in urban sewage treatment. The function of the fine screen machine in the sewage treatment plant is to intercept the fine particles of slag in the raw water of domestic sewage, and through the rotation of the rake teeth, the slag is picked out and poured into the slag removal screen.

[0003] The gaps between the traditional fine screen teeth of sewage treatment plants are mostly in the specifications of 5mm, 3mm, and 2mm. Since the gaps between the screen teeth are small (the probability of this happening in coarse screen machines is low), if slag with a particle size close to the gap is encountered, it will be stuck in the teeth and unable to enter the slag removal spiral after rotation. When the teeth rotate to the back water surface, it is easy to be washed into the subsequent process by the water flow, causing wear and failure of the underwater equipment in the subsequent pool body, and also causing a large area of ​​slag to appear on the surface of the pool later. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a fine grid machine cleaning device, which solves the problem that dregs are easily stuck in the fine grid rake teeth, thus affecting the water filtering effect.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a fine grid machine cleaning device, comprising:

[0008] A drive shaft connected to the end of the fine grid machine shaft, wherein the fine grid machine shaft and the drive shaft are coaxially connected;

[0009] Two parallel supporting plates, the two supporting plates are located on both sides of the lower part of the fine screen machine shaft, and a driven shaft assembly is arranged between the two supporting plates, the driven shaft assembly is transmission-connected to the driving shaft, and a cleaning roller is sleeved on the outer wall of the driven shaft assembly;

[0010] A cleaning brush, which is arranged on the outer wall of the cleaning roller and arranged along the axis of the cleaning roller, and which contacts the fine grid rake teeth on the surface of the fine grid machine shaft;

[0011] The driven shaft assembly comprises end half shafts arranged on the two support plates, an inner shaft is connected between the two end half shafts via a connecting pin, and the cleaning roller is sleeved on the outer wall of the inner shaft;

[0012] The outer wall of the inner shaft is provided with a limit spline, and the inner wall of the cleaning roller is provided with a keyway matching the limit spline.

[0013] Preferably, a driving pulley and a driven pulley are respectively provided on the outer wall of the driving shaft and on one end of one of the end half shafts, and the driving pulley and the driven pulley are connected by a belt.

[0014] Preferably, a driving sprocket and a driven sprocket are respectively provided on the outer wall of the driving shaft and on one end of one of the end half-shafts, and the driving sprocket and the driven sprocket are connected by a chain.

[0015] Preferably, a slide groove is provided on the outer wall of the cleaning roller, a plug-in strip matching the slide groove is provided on the side of the cleaning brush facing the slide groove, and retaining rings are provided at both ends of the cleaning roller, and the retaining rings are connected to the ends of the slide groove.

[0016] Preferably, a guide plate is provided on the lower side between the two support plates, and the guide plate is arranged in an inclined shape.

[0017] (III) Beneficial effects

[0018] The utility model provides a fine grid machine cleaning device, which has at least the following beneficial effects compared with the prior art:

[0019] When the fine grid rake teeth rotate to the slag removal spiral device, a cleaning brush and other structures are installed. The cleaning brush and the fine grid machine shaft in the fine grid rake teeth rotate relative to each other. The cleaning brush will brush off the small-sized slag stuck between the grid gaps, reducing the slag entering the subsequent process.

[0020] There is usually a slag removal spiral conveyor under the fine screen machine. The slag scraped off by the cleaning brush and the slag that falls by itself can fall into the slag removal spiral conveyor and be transported away together. It can greatly increase the slag removal capacity of the fine screen, effectively reduce the wear of the solid slag on the flow pusher, internal and external reflux pumps in the subsequent oxidation ditch, and make the oxidation ditch and the surface of the secondary sedimentation tank cleaner. It saves the cost of manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the utility model after the cleaning roller is removed;

[0023] Figure 3 This is a schematic diagram of the structure of the cleaning roller, chute, retaining ring, and cleaning brush of the utility model;

[0024] Figure 4 It is a schematic diagram of the cleaning brush and the plug-in strip structure of the utility model.

[0025] In the figure: 1. Fine grid machine shaft; 2. Drive shaft; 3. Drive pulley; 4. Support plate; 5. End half shaft; 6. Driven pulley; 7. Inner shaft; 8. Limiting spline; 9. Cleaning roller; 10. Slide groove; 11. Retaining ring; 12. Cleaning brush; 13. Connecting strip; 14. Guide plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] See also Figure 1-4 The utility model provides a technical solution: a fine grid machine cleaning device, comprising: a driving shaft 2 connected to the end of a fine grid machine rotating shaft 1, two parallel support plates 4, and a cleaning brush 12;

[0029] The fine screen machine shaft 1 is coaxially connected to the driving shaft 2, the two support plates 4 are located on both sides of the lower part of the fine screen machine shaft 1, and a driven shaft assembly is arranged between the two support plates 4, the driven shaft assembly is transmission-connected to the driving shaft 2, a cleaning roller 9 is sleeved on the outer wall of the driven shaft assembly, the cleaning brush 12 is arranged on the outer wall of the cleaning roller 9, and the cleaning brush 12 is arranged along the axial direction of the cleaning roller 9, and the cleaning brush 12 contacts the fine screen rake teeth on the surface of the fine screen machine shaft 1.

[0030] Analysis of the above content: When in use, two parallel support plates 4 are installed on both sides of the upper surface of the slag removal spiral conveyor, or on both sides of the lower surface of the high end of the fine screen machine casing. In this way, the drive shaft 2 is driven to rotate by the fine screen machine shaft 1, and the drive shaft 2 drives the driven shaft assembly, the cleaning roller 9, and the cleaning brush 12 to rotate. The rotating cleaning brush 12 scrapes off the slag on the surface of the fine screen machine.

[0031] When the fine screen machine is running, the sewage moves from left to right, and the sewage is washed on the fine screen rake teeth. The slag on the surface of the sewage is filtered by the fine screen rake teeth, and the slag stays. The fine screen rake teeth set on the outer wall of the fine screen machine shaft 1 are driven by the driving mechanism to rotate. The fine screen rake teeth lift the filtered slag in a clockwise direction, and after reaching the high point, they fall to the lower right side. At the same time, the slag stuck on the fine screen rake teeth falls down under the cleaning of the rotating cleaning brush 12. The fallen slag falls directly into the entrance of the slag removal spiral conveyor.

[0032] Embodiment 2:

[0033] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: the driven shaft assembly includes an end half shaft 5 arranged on the two support plates 4, an inner shaft 7 is connected between the two end half shafts 5 through a connecting pin, and the cleaning roller 9 is sleeved on the outer wall of the inner shaft 7.

[0034] Analysis of the above content: By means of the pin connection, it is convenient to remove the inner shaft 7 from the end half shaft 5, and it is convenient to disassemble and assemble the cleaning roller 9 and other structures during the subsequent maintenance.

[0035] Embodiment three:

[0036] See also Figure 1-4 The utility model provides a technical solution based on the second embodiment: a limit spline 8 is arranged on the outer wall of the inner shaft 7, and a keyway matching the limit spline 8 is opened on the inner wall of the cleaning roller 9.

[0037] Analysis of the above content: Through the cooperation of the limiting spline 8 and the keyway, the connection between the cleaning roller 9 and the inner shaft 7 is stable and it is not easy to rotate relative to each other.

[0038] Embodiment 4:

[0039] See also Figure 1-4 The utility model provides a technical solution based on the second embodiment: the drive connection between the drive shaft 2 and the end half shaft 5 adopts the following two methods:

[0040] The first type: a driving pulley 3 and a driven pulley 6 are respectively arranged on the outer wall of the driving shaft 2 and one end of one of the end half shafts 5, and the driving pulley 3 and the driven pulley 6 are connected by a belt.

[0041] The second type: a driving sprocket and a driven sprocket are respectively arranged on the outer wall of the driving shaft 2 and on one end of one of the end half shafts 5, and the driving sprocket and the driven sprocket are connected by a chain.

[0042] Through the above two methods, a transmission connection can be established between the drive shaft 2 and one of the end half shafts 5. In this way, when the fine screen machine shaft 1 rotates during operation, it can drive the drive shaft 2 to rotate. The drive shaft 2 is linked to the end half shaft 5, the inner shaft 7, the cleaning roller 9, and the cleaning brush 12. Therefore, when the fine screen machine is working, it will drive the cleaning brush 12 to rotate to perform a cleaning effect.

[0043] Here, the driving sprocket, the driven sprocket and the chain can replace the driving pulley 3, the driven pulley 6 and the belt accordingly. The figure shows the driving pulley 3, the driven pulley 6 and the belt transmission method. When it is necessary to replace them with the driving sprocket, the driven sprocket and the chain, the driving sprocket, the driven sprocket and the chain can replace the driving pulley 3, the driven pulley 6 and the belt accordingly.

[0044] Embodiment five:

[0045] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: a slide groove 10 is opened on the outer wall of the cleaning roller 9, and a plug-in strip 13 matching the slide groove 10 is arranged on the side of the cleaning brush 12 facing the slide groove 10, and retaining rings 11 are arranged at both ends of the cleaning roller 9, and the retaining rings 11 are connected to the ends of the slide groove 10.

[0046] Analysis of the above content: the chute 10 is a T-shaped chute, the plug-in strip 13 is a T-shaped plug-in strip, the plug-in strip 13 of the cleaning brush 12 is inserted into the chute 10 from one end of the chute 10, and then, the retaining ring 11 is connected to both ends of the cleaning roller 9, and the retaining ring 11 plays a role of blocking the end of the chute 10 of the cleaning roller 9, and the retaining ring 11 can be connected to the cleaning roller 9 by screws. Or a plug-in block is connected to the side wall of the retaining ring 11, and the plug-in block is inserted into the chute 10, and the plug-in block is made of rubber material, and the plug-in block and the chute 10 are interference fit, so that the retaining ring 11 is connected and tightened with the chute 10 through the plug-in block, not easy to loosen, and the connection is more convenient.

[0047] Embodiment six:

[0048] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: a guide plate 14 is arranged at the lower side between the two support plates 4, and the guide plate 14 is arranged to be inclined.

[0049] Analyzing the above contents: the setting of the guide plate 14 plays a guiding role on the falling slag, and guides the falling slag to the entrance of the slag removing spiral conveyor.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Fine grid machine cleaning device, characterized in that: include: A drive shaft (2) connected to the end of the fine screen machine rotating shaft (1), wherein the fine screen machine rotating shaft (1) and the drive shaft (2) are coaxially connected; Two support plates (4) are arranged in parallel, the two support plates (4) are located on both sides of the lower part of the fine screen machine shaft (1), and a driven shaft assembly is arranged between the two support plates (4), the driven shaft assembly is transmission-connected to the driving shaft (2), and a cleaning roller (9) is sleeved on the outer wall of the driven shaft assembly; A cleaning brush (12), wherein the cleaning brush (12) is arranged on the outer wall of the cleaning roller (9), and the cleaning brush (12) is arranged along the axial direction of the cleaning roller (9), and the cleaning brush (12) is in contact with the fine grid rake teeth on the surface of the fine grid machine shaft (1); The driven shaft assembly comprises an end half shaft (5) arranged on the two support plates (4), an inner shaft (7) is connected between the two end half shafts (5) via a connecting pin, and the cleaning roller (9) is sleeved on the outer wall of the inner shaft (7); A limit spline (8) is arranged on the outer wall of the inner shaft (7), and a keyway matching the limit spline (8) is opened on the inner wall of the cleaning roller (9).

2. The fine grid machine cleaning device according to claim 1, characterized in that: A driving pulley (3) and a driven pulley (6) are respectively arranged on the outer wall of the driving shaft (2) and one end of one of the end half shafts (5); the driving pulley (3) and the driven pulley (6) are connected by a belt.

3. The fine grid machine cleaning device according to claim 1, characterized in that: A driving sprocket and a driven sprocket are respectively arranged on the outer wall of the driving shaft (2) and on one end of one of the end half shafts (5), and the driving sprocket and the driven sprocket are connected by a chain.

4. The fine grid machine cleaning device according to claim 1, characterized in that: A slide groove (10) is provided on the outer wall of the cleaning roller (9); a plug-in strip (13) matching the slide groove (10) is provided on the side of the cleaning brush (12) facing the slide groove (10); retaining rings (11) are provided at both ends of the cleaning roller (9); and the retaining rings (11) are connected to the ends of the slide groove (10).

5. The fine grid machine cleaning device according to claim 1, characterized in that: A guide plate (14) is arranged on the lower side between the two support plates (4), and the guide plate (14) is arranged in an inclined shape.

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