Self-cleaning rotary grillage machine

Abstract

The utility model discloses a self-cleaning rotary grillage machine which comprises a machine frame and a rake tooth chain row, a plurality of driven chain wheels are rotatably connected to the interior of the machine frame, a driving chain wheel is rotatably connected to the top of the machine frame, and the rake tooth chain row is meshed with the plurality of driven chain wheels and the driving chain wheel. A transverse shaft is rotationally connected to the top of the rack and located below the driving chain wheel, a motor for driving the driving chain wheel and the transverse shaft to rotate is installed at the top of the rack, and the surface of the transverse shaft is sleeved with a roller brush assembly. The machine frame, the rake tooth chain row, the motor, the transverse shaft, the roller brush assembly and the scraping assembly are arranged, the motor drives the rake tooth chain row to rotate and can drive the roller brush assembly to rotate at the same time, garbage impurities on the surface of the rake tooth chain row are brushed away through the roller brush assembly, and the roller brush assembly rotates to drive the rake tooth chain row to rotate. And the scraping assembly scrapes away garbage impurities clamped on the bristles of the rolling brush assembly, and the cleaning effect on the rake tooth chain row can be improved through the self-cleaning mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grating machine, especially to a self-cleaning rotary grating machine. BACKGROUND

[0002] The rotary grating cleaner is a water treatment special-purpose equipment capable of continuously and automatically intercepting and removing various shape sundries in fluid, which can be widely applied to urban sewage treatment, tap water industry, water inlet of power plant, and also can be used as a front-stage screening equipment in wastewater treatment process of textile, food processing, papermaking and leather industry, and is one of the most advanced solid-liquid screening equipment in China, and the biggest advantage of the equipment is high automation degree, high separation efficiency, small power consumption, no noise and good corrosion resistance, and can ensure continuous and stable work under unattended condition.

[0003] In order to ensure that the rotary grating can work continuously and stably, a structure for cleaning the rake chain row is usually arranged on the top of the machine, and the most common one is to arrange a brush rotating reversely with the rake chain row, and after long-term use, sundries and garbage will be stuck on the bristles, which affects the cleaning effect of the brush on the rake chain row. Secondly, when the brush is seriously worn, it is not convenient to quickly disassemble and replace the brush, therefore, further improvement is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a self-cleaning rotary grating machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a self-cleaning rotary grating machine, which comprises a rack and a rake chain row, a plurality of driven sprockets are rotationally connected in the rack, and a driving sprocket is rotationally connected to the top of the rack, the rake chain row is engaged with the plurality of driven sprockets and the driving sprocket, a horizontal shaft is rotationally connected to the top of the rack and below the driving sprocket, a motor for driving the rotation of the driving sprocket and the horizontal shaft is installed on the top of the rack, a roller brush assembly is sleeved on the surface of the horizontal shaft, a baffle and a positioning assembly are respectively arranged on both sides of the roller brush assembly on the surface of the horizontal shaft, and the baffle is fixedly connected with the horizontal shaft, a scraping assembly is fixedly arranged on the top of the rack and below the roller brush assembly, and an opening is formed on the top of the rack and close to one side of the positioning assembly.

[0006] Further, the driven sprockets and the driving sprocket are rotationally connected with the rack through center shafts, the center shafts of the driving sprocket and the horizontal shaft are fixedly provided with driven pulleys at one end outside the rack, the output shaft of the motor is fixedly provided with two driving pulleys, and the surfaces of the two driving pulleys and the two driven pulleys are sleeved with a belt.

[0007] Further, the roller brush assembly comprises a roller, and a shaft hole for passing through the horizontal shaft is formed in the middle of the roller, and brush hairs are fixed to the outer surface of the roller.

[0008] Further, a protruding key is fixed to the surface of the horizontal shaft between the baffle and the positioning assembly, a key groove is formed in the inner wall of the shaft hole of the roller, and the protruding key is clamped into the key groove.

[0009] Further, the positioning assembly comprises a groove formed in the surface of the horizontal shaft, a spring is fixedly connected to the inner side wall of the groove, a clamping tooth is fixed to the other end of the spring, and the end of the clamping tooth away from the spring is located outside the groove.

[0010] Further, the scraping assembly comprises a scraper fixedly connected to the inner wall of the rack, and a plurality of tooth grooves are equidistantly formed in the side of the scraper close to the roller brush assembly.

[0011] Further, a side cover is rotatably connected to the inner side of the opening through a hinge, and the side cover is fixed to the rack through a magnet away from the hinge.

[0012] The utility model discloses the beneficial effect of:

[0013] 1, the utility model discloses when using, a kind of self-cleaning rotary screen machine, setting rack, rake chain row, motor, horizontal shaft, roller brush assembly and scraping assembly, the rotation of rake chain row is driven by motor simultaneously, can also drive the rotation of roller brush assembly, utilize roller brush assembly and brush off the garbage and impurity on the surface of rake chain row, with the rotation of roller brush assembly, scraping assembly again the garbage and impurity of carding on the bristle of roll brush assembly is scraped off, and this self-cleaning mode can improve the cleaning effect of rake chain row.

[0014] 2, the utility model discloses when using, a kind of self-cleaning rotary screen machine, setting rack, rake chain row, motor, horizontal shaft, roller brush assembly, positioning assembly and baffle, roller brush assembly is fixed on the surface of horizontal shaft by baffle and positioning assembly, after utilizing positioning assembly to release the fixation of roller brush assembly, it can be quickly disassembled roller brush assembly to replace it, improve the convenience of roller brush assembly replacement. DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the specific implementation mode description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.

[0016] Figure 1 The overall side view of the utility model;

[0017] Figure 2 The overall side view of the utility model;

[0018] Figure 3 : the partial sectional view of the utility model;

[0019] Figure 4 : the horizontal shaft perspective view of the utility model;

[0020] Figure 5 : the Figure 3 enlarged view of A in the middle;

[0021] Figure 6 : the perspective view of the material scraping assembly of the utility model.

[0022] The reference signs are as follows:

[0023] 1, rack; 2, driving sprocket; 3, driven sprocket; 4, harrow chain row; 5, motor; 6, horizontal shaft; 61, key; 7, roller brush assembly; 71, roller; 72, brush; 73, keyway; 8, baffle; 9, positioning assembly; 91, groove; 92, spring; 93, clamping tooth; 10, material scraping assembly; 101, scraper; 102, tooth groove; 11, opening; 12, side cover. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] As Figures 1-6 shown, it relates to a self-cleaning rotary grating machine, including rack 1 and harrow chain row 4, a plurality of driven sprocket 3 are rotationally connected in the inside of rack 1, and the top of rack 1 is rotationally connected with driving sprocket 2, harrow chain row 4 is engaged with a plurality of driven sprocket 3 and driving sprocket 2, the top of rack 1 and below driving sprocket 2 are rotationally connected with horizontal shaft 6, the top of rack 1 is installed with motor 5 for driving the rotation of driving sprocket 2 and horizontal shaft 6, the surface of horizontal shaft 6 is sleeved with roller brush assembly 7, the surface of horizontal shaft 6 and below roller brush assembly 7 are respectively provided with baffle 8 and positioning assembly 9, and baffle 8 is fixedly connected with horizontal shaft 6, the top of rack 1 and below roller brush assembly 7 are fixed with material scraping assembly 10, and the top of rack 1 and close to one side of positioning assembly 9 are provided with opening 11.

[0026] Driven sprocket 3 and driving sprocket 2 are rotationally connected with rack 1 through center shaft, the center shaft of driving sprocket 2 and the one end outside horizontal shaft 6 of rack 1 are fixed with driven pulley, the output shaft of motor 5 is fixed with two driving pulleys, and the surface of two driving pulleys and two driven pulleys is sleeved with belt.

[0027] In the embodiment, the connection mode of the driven sprocket 3, the driving sprocket 2 and the chain-and-digger row 4 is the same as that of the existing grating machine. The motor 5 drives the driving sprocket 2 to rotate through a belt, so as to realize the rotation of the chain-and-digger row 4 and use the chain-and-digger row 4 to dredge up the garbage and impurities in the water. The motor 5 drives the horizontal shaft 6 to rotate through another belt.

[0028] The roller brush assembly 7 comprises a roller 71, and the roller 71 is provided with a shaft hole in the middle part for passing through the horizontal shaft 6. The outer surface of the roller 71 is fixed with bristles 72.

[0029] The horizontal shaft 6 is fixed with a protruding key 61 on the surface and between the baffle 8 and the positioning assembly 9. The inner wall of the shaft hole of the roller 71 is provided with a key groove 73, and the protruding key 61 is clamped into the key groove 73.

[0030] Since the protruding key 61 is clamped into the key groove 73, the horizontal shaft 6 can drive the roller 71 to rotate, so as to drive the bristles 72 on the surface of the roller 71 to rotate. Since the roller 71 is located below the chain-and-digger row 4, the rotation directions of the chain-and-digger row 4 and the roller 71 are opposite. With the rotation of the chain-and-digger row 4, the bristles 72 on the surface of the roller 71 can brush off the garbage on the surface of the chain-and-digger row 4.

[0031] The positioning assembly 9 comprises a recess 91 provided on the surface of the horizontal shaft 6. The inner side wall of the recess 91 is fixedly connected with a spring 92. The other end of the spring 92 is fixed with a clamping tooth 93. The end of the clamping tooth 93 away from the spring 92 is located outside the recess 91.

[0032] In the embodiment, the two ends of the roller 71 are respectively attached to the baffle 8 and the clamping tooth 93. The clamping tooth 93 and the baffle 8 are used to limit and fix the roller 71. When it is necessary to replace the roller brush assembly 7, the clamping tooth 93 is pressed to retract into the recess 91. Then the roller 71 is pulled off the surface of the horizontal shaft 6. Then a new roller brush assembly 7 is replaced, and a new roller 71 is sleeved on the surface of the horizontal shaft 6. When the roller 71 is sleeved, the clamping tooth 93 is first pressed to retract into the recess 91, and then the roller 71 is sleeved on the surface of the horizontal shaft 6. When the roller 71 is sleeved, the key groove 73 in the middle part of the roller 71 needs to be aligned with the protruding key 61. When the roller 71 is attached to the baffle 8, the clamping tooth 93 is pushed out by the spring 92, so as to limit and fix the roller 71 by using the clamping tooth 93 and the baffle 8.

[0033] The scraping assembly 10 comprises a scraper 101 fixedly connected with the inner wall of the rack 1. The scraper 101 is provided with a plurality of tooth grooves 102 equidistantly and close to one side of the roller brush assembly 7.

[0034] With the rotation of the bristles 72 on the surface of the roller 71, the bristles 72 will pass through the tooth grooves 102, so as to use the scraper 101 to scrape off the garbage and impurities stuck on the bristles 72.

[0035] The side cover 12 is rotatably connected to one side of the opening 11 through a hinge, and the side cover 12 is fixed to the rack 1 through a magnet on the side away from the hinge.

[0036] When the roller brush assembly 7 is disassembled or assembled, the side cover 12 is rotated to open, and the roller brush assembly 7 is assembled or disassembled from the opening 11.

[0037] Working principle: when in use, the motor 5 drives the driving sprocket 2 and the horizontal shaft 6 to rotate through two belts, so that the rake chain row 4 and the roller brush assembly 7 rotate, the garbage in the water is fished up by the rake chain row 4, the garbage on the surface of the rake chain row 4 is brushed off by the rotating roller brush assembly 7, and the garbage on the surface of the bristles 72 is cleaned by the scraper 101. When the roller brush assembly 7 needs to be replaced, the side cover 12 is opened, and the roller brush assembly 7 is disassembled and replaced from the opening 11.

[0038] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the skilled in the art can well understand and use the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A self-cleaning rotary bar screen, comprising a frame (1) and a rake tooth chain (4), characterized in that: The frame (1) is rotatably connected to multiple driven sprockets (3), and the top of the frame (1) is rotatably connected to a drive sprocket (2). The rake tooth chain (4) meshes with multiple driven sprockets (3) and drive sprockets (2). A horizontal shaft (6) is rotatably connected to the top of the frame (1) and below the drive sprocket (2). A motor (5) that drives the drive sprocket (2) and the horizontal shaft (6) is installed on the top of the frame (1). A roller brush assembly (7) is sleeved on the surface of the horizontal shaft (6). A baffle (8) and a positioning assembly (9) are respectively provided on the surface of the horizontal shaft (6) and on both sides of the roller brush assembly (7). The baffle (8) is fixedly connected to the horizontal shaft (6). A scraping assembly (10) is fixed on the top of the frame (1) and below the roller brush assembly (7). An opening (11) is opened on the top of the frame (1) and on the side near the positioning assembly (9).

2. The self-cleaning rotary bar screen according to claim 1, characterized in that: Both the driven sprocket (3) and the driving sprocket (2) are rotatably connected to the frame (1) through the central shaft. The driving sprocket (2) has a driven pulley fixed at one end of its central shaft and horizontal shaft (6) outside the frame (1). The output shaft of the motor (5) has two driving pulleys fixed, and the two driving pulleys are respectively fitted with belts on the surfaces of the two driven pulleys.

3. The self-cleaning rotary bar screen according to claim 1, characterized in that: The roller brush assembly (7) includes a roller (71), and the roller (71) has a shaft hole in the middle for passing through the horizontal shaft (6), and brush bristles (72) are fixed on the outer surface of the roller (71).

4. A self-cleaning rotary bar screen according to claim 3, characterized in that: A convex key (61) is fixed on the surface of the horizontal shaft (6) and between the baffle (8) and the positioning component (9). A keyway (73) is provided on the inner wall of the shaft hole of the roller (71), and the convex key (61) is inserted into the keyway (73).

5. A self-cleaning rotary bar screen according to claim 1, characterized in that: The positioning component (9) includes a groove (91) formed on the surface of the horizontal axis (6). A spring (92) is fixedly connected to the inner wall of the groove (91). A locking tooth (93) is fixed to the other end of the spring (92). The end of the locking tooth (93) away from the spring (92) is located outside the groove (91).

6. A self-cleaning rotary bar screen according to claim 1, characterized in that: The scraping assembly (10) includes a scraper (101) fixedly connected to the inner wall of the frame (1), and the scraper (101) has a plurality of toothed grooves (102) evenly spaced on the side near the roller brush assembly (7).

7. A self-cleaning rotary bar screen according to claim 1, characterized in that: The opening (11) has a side cover (12) connected to one side of the inside by a hinge, and the side cover (12) away from the hinge is fixed to the frame (1) by a magnet.

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