Cleaning device for belt conveyor

Abstract

The utility model belongs to the technical field of belt conveyors, and particularly relates to a cleaning device for a belt conveyor, which is characterized by comprising a base, a brush roll frame, a knife rest and a scraper, the knife rest is arranged on the base and connected with the base through a hinged shaft, a roll brush is arranged on the brush roll frame, one end of a roll brush shaft is connected with a motor through a speed reducer, and the other end of the roll brush shaft is connected with the scraper. The tool rest is movably connected with the base through an elastic support. The top of the knife rest is connected with a scraper; the knife rest deviates from the top roller. Compared with the prior art, the scraper has the advantages that the top roller and the belt are mutually supported, the problem of damage to the loose belt is solved, material adhesion on the belt can be cleaned in real time, damage caused by long-term use due to the fact that the loose belt is directly pressed on the scraper can be avoided, and the service life of the conveyor belt is prolonged; secondly, the roller brush conducts secondary cleaning on the belt, cleaning of the roller brush is more thorough than that of a scraper, and then the cleaning capacity of the whole device is further improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of belt conveyors, and in particular relates to a cleaning device for belt conveyors. Background Technology

[0002] A belt conveyor is a material handling machine that continuously transports materials along a fixed route. Conveyors can transport materials horizontally, inclined, and vertically, and can also form spatial conveying lines, which are generally fixed. Belt conveyors have a large conveying capacity and long conveying distance, so they are widely used. The structure of a belt conveyor includes a mounting frame, drive rollers, a belt, and a drive motor. The drive motor acts as a power source, transmitting rotational power to the drive rollers, which in turn drive the belt to rotate, thus moving the material above the belt. During use, due to the different materials being transported, material often adheres to the belt, requiring cleaning devices to clean it. Belt cleaning often uses fixed scrapers. While this method can clean the belt, over time the belt will loosen, and the loosened belt will press directly against the scraper due to its own weight, causing damage over time and affecting the belt's lifespan.

[0003] Chinese invention patent CN145905317U discloses a belt cleaning device for a belt conveyor, including a brush roller rotatably mounted below the end of the conveyor, with bristles on the brush roller capable of contacting the belt on the conveyor; a first cleaning water pipe, arranged parallel to the brush roller, with multiple first nozzles facing the brush roller; and a second cleaning water pipe located at the bottom of the conveyor, with multiple second nozzles for spraying water onto the bottom of the return section of the belt; both the first and second cleaning water pipes are connected to an external high-pressure water source for automatic cleaning.

[0004] Chinese invention patent CN142245109U discloses a cleaning device for a conveyor. A cleaning plate is placed at one end of the conveyor, and a clamping plate is positioned opposite the plates on both sides of the conveyor. Pulling the clamping plate downwards causes it to move a limiting rod downwards, stretching a tension spring downwards. A first stabilizing block and a second stabilizing block slide within a first stabilizing groove and a second stabilizing groove, respectively, changing the distance between the clamping plate and the cleaning plate. This allows the plates on both sides of the conveyor to be positioned between the clamping plate and the cleaning plate. Under the tension of the tension spring, the cleaning plate is connected to the conveyor. The downward movement of the clamping plate causes the limiting rod to move, stretching the tension spring. The tension spring, with its tension force, causes the clamping plate to move upwards.

[0005] Chinese invention patent CN149602745U discloses a belt conveyor impurity removal device. When adhesive tape fragments adhere to the conveyor belt, the conveyor belt rotates to enter the heating chamber. A hot air blower delivers hot air into the heating chamber to raise the temperature inside the heating chamber, thereby softening the adhesion between the adhesive tape fragments and the conveyor belt. At the same time, a drive mechanism drives a cleaning brush to rotate to scrub the surface of the conveyor belt, thereby causing the adhesive tape fragments to adhere to the cleaning brush and then remove the adhesive tape fragments from the conveyor belt.

[0006] Existing cleaning devices are not suitable for strongly adhesive materials such as quicklime. Due to the properties of quicklime, it is also not suitable for rinsing with water, and heating is not helpful for removing scale. Utility Model Content

[0007] The purpose of this invention is to provide a cleaning device for belt conveyors, which overcomes the shortcomings of the prior art. It uses a scraper with elastic support and a top roller to solve the problem of damage to loose belts. It can clean the belt in real time and avoid the loose belt from being directly pressed on the scraper, which would cause damage after long-term use, thus extending the service life of the conveyor belt.

[0008] To achieve the above objectives, this utility model employs the following technical solution:

[0009] A cleaning device for a belt conveyor includes a base, a brush roller frame, a blade holder, and a scraper. The blade holder is mounted on the base and connected to the base via a hinge. The brush roller frame has a roller brush, one end of which is connected to a motor via a reducer. The blade holder is movably connected to the base via an elastic support. The elastic support includes a base rod and a sleeve, with a spring between them. The top of the sleeve is hinged to the blade holder, and the top of the blade holder is connected to the scraper. Two connecting plates are arranged parallel to each other on the side of the blade holder away from the scraper tip, and a top roller is connected between the two connecting plates via a roller shaft.

[0010] Furthermore, the blade holders are in two sets, symmetrically arranged on the outside of the fixing frame on the base, and a full-length scraper is connected to the two blade holders.

[0011] Furthermore, the front part of the scraper is provided with a shovel-shaped blade, and the rear blade surface of the scraper is a smooth arc surface.

[0012] Furthermore, the top of the blade holder is provided with a slot, and the bottom of the scraper is provided with an insert plate that mates with the slot. The insert plate and the blade holder are fixedly connected by bolts.

[0013] Furthermore, the roller brush is any one of a steel wire roller brush, a cotton abrasive roller brush, a nylon bristle brush, or a nylon filament wound roller brush.

[0014] Furthermore, the angle between the shovel-shaped blade and the belt surface after installation is no greater than 10°.

[0015] Furthermore, the distance between the shovel-shaped blade and the top roller is no greater than 130mm.

[0016] Furthermore, the top roller is covered with a rubber layer with a pattern engraved on the surface, and a full-length top roller is connected to two tool holders.

[0017] Furthermore, the tool holder is equipped with a vibration motor.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1) The scraper and top roller with elastic support are used together. The elasticity of the spring is used to achieve mutual support between the top roller and the belt, which solves the problem of damage to the slack belt. It can clean the material adhering to the belt in real time, and also avoid the slack belt directly pressing on the scraper, which will cause damage due to long-term use, thus extending the service life of the conveyor belt.

[0020] 2) After the initial cleaning of the belt is completed, the roller brush is rotated by the motor to achieve a secondary cleaning of the belt. The roller brush cleans more thoroughly than the scraper, so that small adhesives can be completely removed, thereby further improving the cleaning ability of the entire device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 The left view;

[0023] Figure 3 This is a schematic diagram of the cutter head connection structure in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the elastic support structure in an embodiment of this utility model.

[0025] In the diagram: 1-Base; 2-Knife holder; 3-Scraper; 4-Spring; 5-Connecting plate; 6-Top roller; 7-Brush roller frame; 8-Roller brush; 9-Fixing frame; 10-Hinge shaft; 11-Seat rod; 12-Rod sleeve; 13-Slot; 14-Insert plate; 15-Bolt; 16-Motor; 17-Reducer; 18-Scoop blade; 19-Belt. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the specific embodiments used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some embodiments of this utility model. For those skilled in the art, other specific embodiments can be obtained based on these specific embodiments without creative effort.

[0028] The components of the present invention described and shown in the specific embodiments herein can be arranged and designed in numerous different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0029] See Figure 1-4 This is a schematic diagram of an embodiment of a cleaning device for a belt conveyor according to the present invention. It includes a base 1, a brush roller frame 7, a blade holder 2, and a scraper 3. The blade holder 2 is mounted on the base 1 and connected to the base 1 via a hinge shaft 10. A roller brush 8 is mounted on the brush roller frame 7. One end of the roller brush 8's shaft is connected to a motor 16 via a reducer 17. The motor 16 outputs torque through the reducer 17, providing power for the rotation of the roller brush 8. The blade holder 2 is movably connected to the base 1 via an elastic support. The elastic support includes a seat rod 11 and a sleeve 12. A spring 4 is provided between the seat rod 11 and the sleeve 12. The top of the sleeve 12 is hinged to the blade holder 2. The top of the blade holder 2 is connected to the scraper 3. The cooperation between the seat rod 11 and the sleeve 12 ensures the stability of the spring 4, preventing instability and deformation, thereby stabilizing the swing of the blade holder 2. Two connecting plates 5 are arranged parallel to each other on the side of the blade holder 2 away from the tip of the scraper 3. The two connecting plates 5 are connected to a top roller 6 via a roller shaft. Under the action of spring 4, top roller 6 lifts the belt upward, achieving a perfect fit between the belt and roller brush 8.

[0030] The blade holders 2 consist of two sets, symmetrically arranged on the outside of the fixing frames 9 on the base 1. A full-length scraper 3 is connected to the two blade holders 2. The fixing frames 9 can collect the adhesive material cleaned by the scraper 3 and the roller brush 8, while the hinge shaft 10 is movably connected to the frame, thus realizing the rotation of the blade holders 2.

[0031] The scraper 3 has a shovel-shaped blade 18 at its front, and the rear blade surface a of the scraper 3 is a smooth arc surface. The top roller 6 is covered with a rubber layer with a patterned surface, and a full-length top roller 6 is connected to two blade holders 2. The distance between the shovel-shaped blade 18 and the top roller 6 should not exceed 130mm to effectively support the belt. The elastic bracket is pressed against the blade holder 2 by the elasticity of the spring 4, and the top roller 6 provides mutual support between the scraper 3 and the belt, so that the scraper 3 can clean the material adhering to the belt while avoiding damage to the belt. The scraper 3 can clean more stubborn large pieces of adhering material, while the roller brush can thoroughly clean smaller adhering materials, achieving a secondary cleaning of the belt.

[0032] The top of the blade holder 2 has a slot 13, and the bottom of the scraper 3 has an insert plate 14 that mates with the slot 13. The insert plate 14 is fixedly connected to the blade holder 2 by bolts. When the scraper 3 wears out after long-term use, it can be replaced. After the shovel-shaped blade 18 is installed, the angle β between it and the belt 19 is no more than 10° to avoid scratching the belt.

[0033] The roller brush 8 can be any one of a steel wire roller brush, a cotton abrasive roller brush, a nylon bristle brush, or a nylon filament wound roller brush, selected according to the belt material. To ensure reliable and effective cleaning, the rotational linear speed of the roller brush 8 should ideally differ from the belt's moving linear speed by 10-30 mm / s; the rotational speed of the roller brush 8 needs to be controlled. A vibrating motor can also be further installed on the blade holder 2 to further improve the cleaning effect of the scraper on the belt.

[0034] In use, the cleaning device of this utility model can be fixedly installed below the feed outlet of the belt conveyor, and the bottom belt is placed between the top roller 6 and the roller brush 8. At this time, under the action of the spring 4, the top roller 6 and the scraper 3 on the knife holder 2 can be pushed to a horizontal state and contact the bottom surface of the belt. When the belt becomes loose after long-term operation, the bottom of the belt presses on the top roller 6 due to gravity. At this time, the top roller 6 drives the knife holder 2 to move down, so that the scraper 3 is away from the belt, creating a certain gap between the scraper 3 and the belt. The motor 16 drives the reducer 17 to reduce the output speed, so that the reducer 17 can drive the roller brush 8 to rotate. The roller brush 8 can perform secondary cleaning on the belt, so that the scraper 3 will not damage the belt when it is thoroughly cleaned, thus ensuring its service life.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cleaning device for a belt conveyor, characterized in that The utility model relates to a brush roller and knife device, including base, brush roller frame, tool rest and scraper, be equipped with tool rest on the base, and tool rest is connected with base through hinge shaft, be equipped with roller brush on brush roller frame, and one end of roller brush axle is connected motor through speed reducer, and tool rest is movably connected with base through elastic support, the structure of elastic support includes seat pole and pole cover, and spring is equipped between seat pole and pole cover, and pole cover top is articulated with tool rest, the top of tool rest is connected scraper, the side of tool rest away from scraper tip is provided with two connecting plates in parallel, and two connecting plates are connected top roller through roller axle.

2. A cleaning device for a belt conveyor according to claim 1, characterized in that The tool rest is two groups, and symmetrically set up on the outside of fixed frame on base, and one scraper is connected on two tool rests.

3. A cleaning device for a belt conveyor according to claim 1, characterized in that The front part of scraper is equipped with shovel-shaped blade, and the back surface of scraper is smooth arc surface.

4. A cleaning device for a belt conveyor according to claim 1, characterized in that The top of tool rest is provided with insertion slot, and the bottom of scraper is provided with insertion plate matched with insertion slot, and the insertion plate is fixedly connected with tool rest through bolt.

5. A cleaning device for a belt conveyor according to claim 1, characterized in that The roller brush is any one of steel wire roller brush, cotton sand roller brush, nylon hair brush and nylon curly wire winding roller brush.

6. A cleaning device for a belt conveyor according to claim 3, characterized in that The angle between the shovel-shaped blade and the surface of the belt is not more than 10°.

7. A cleaning device for a belt conveyor according to claim 3, characterized in that The distance between the shovel-shaped blade and the top roller is not more than 130mm.

8. A cleaning device for a belt conveyor according to claim 1, characterized in that The surface of the top roller is covered with rubber layer, and the surface layer is engraved with patterns.

9. A cleaning device for a belt conveyor according to claim 1, characterized in that The tool rest is provided with vibration motor.

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