Belt cleaning device for belt conveyor

Abstract

The utility model discloses a belt machine belt surface self -cleaning device relates to material conveying technical field, it includes belt machine, material pit, is equipped with the scraper support of fixed scraper support with belt machine support below the tail of belt machine, is equipped with the scraper above the support, and the upper edge of scraper is in abutment with return belt, and both are connected through the compression part of automatic regulation, and the compression part always compresses the scraper with the belt, is equipped with the blowing part alignment upper edge of scraper on the side of scraper, and the bottom of scraper support is equipped with the guide plate to the above material pit. The device can avoid the clearance produced by scraper abrasion, keep good scraping effect, reduce material drop, reduce artificial cleaning frequency and non -stop operation safety risk, simple structure, convenient maintenance.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, specifically a self-cleaning device for the surface of a belt conveyor. Background Technology

[0002] In industrial production, belt conveyors are widely used due to their advantages such as simple structure, high material conveying efficiency, large conveying capacity, and stable conveying. However, when using belt conveyors to convey powdery materials, some materials will stick to the surface of the belt and will not fall into the material pit when passing the tail roller. Instead, they will fall to the ground due to gravity when the belt returns, requiring manual cleaning and wasting human resources.

[0003] Currently, the most common method to solve the problem of material sticking to the conveyor belt during return trips is to install scrapers at the tail end of the conveyor belt. However, as the usage time increases, the scrapers are prone to wear, causing the gap between the scraper and the belt surface to become larger and larger. As a result, the scraping effect on the material stuck to the belt will also decrease, and some material will still fall off. In order not to affect production, it is necessary to arrange for manual cleaning at regular intervals or frequent replacement of scrapers. Since the space at the tail end of the conveyor belt is usually relatively narrow and the equipment is in operation, it is very dangerous to manually clean the accumulated material or replace the scrapers without stopping the machine. Utility Model Content

[0004] The present invention aims to solve the above problems and thus provide a self-cleaning device for the surface of belt conveyors.

[0005] The technical solution adopted by this utility model to solve the aforementioned problem is: A self-cleaning device for the surface of a belt conveyor includes a belt conveyor, a material pit located below the tail end of the belt conveyor, a scraper bracket provided below the tail end of the belt conveyor, the scraper bracket being fixedly connected to the belt conveyor bracket, a scraper being provided above the scraper bracket, the upper edge of the scraper abutting against the surface of the return belt, the scraper and the scraper bracket being connected by a pressing part, the pressing part being automatically adjustable to always keep the scraper pressed against the surface of the return belt.

[0006] Furthermore, the clamping part includes a sleeve fixedly connected to the scraper bracket. A sliding rod is installed inside the sleeve, with the top end of the sliding rod extending upwards out of the sleeve and connecting to the scraper. A sealing plate is installed at the bottom of the sleeve, with an internal threaded hole and an adjusting bolt screwed in. A compression spring and a pressure plate are sequentially installed inside the sleeve and below the bottom end of the sliding rod. The bottom surface of the pressure plate abuts against the end of the adjusting bolt, and the spring is always in a compressed state. Through the cooperation of the sleeve, sliding rod, adjusting bolt, compression spring, and pressure plate, a continuous and adjustable clamping force can be provided to the scraper. When the scraper wears due to long-term use, the spring force can push the sliding rod to automatically adjust the scraper's position upwards, maintaining close contact with the belt surface. At the same time, the spring compression can be changed by rotating the adjusting bolt, flexibly adjusting the pressure of the scraper on the belt, ensuring the scraping effect while avoiding excessive pressure that could aggravate belt or scraper wear.

[0007] Furthermore, a mounting plate is fixedly connected to the top of the slide bar, and the mounting plate is detachably connected to the scraper by bolts; the top of the slide bar is detachably connected to the scraper by the mounting plate, which makes it easy to replace the scraper separately after it wears to a certain extent, without the need for a whole replacement device, reducing maintenance costs and operational complexity, while also making it convenient to change to a suitable scraper type according to the characteristics of different materials.

[0008] Furthermore, a purging section is provided on the side of the scraper near the tail of the belt conveyor. The purging port of the purging section is tilted upward and aligned with the upper edge of the scraper. The purging section on one side of the scraper can periodically purify the upper edge of the scraper and the belt contact area to prevent sticky materials from sticking to the scraper and affecting the scraping effect.

[0009] Furthermore, the purging unit consists of an air pipe with one end sealed, and purging holes are spaced apart on the air pipe. The other end of the air pipe is connected to an external air source; the structure is simple and easy to install.

[0010] Furthermore, the bottom of the scraper support is equipped with a downward-sloping guide plate, with the bottom of the guide plate located above the material pit. The inclined guide plate at the bottom of the scraper support can guide the material scraped off by the scraper to the material pit below, preventing the material from falling directly and accumulating outside the material pit, reducing the workload of subsequent manual cleaning of scattered materials around the material pit, and making material collection more concentrated and efficient.

[0011] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are: By using this utility model, the scraping gap can be effectively avoided due to scraper wear, thus maintaining a good scraping effect and reducing the occurrence of materials falling to the ground during the return trip of the conveyor belt. This reduces the frequency of manual cleaning and also reduces the safety risks caused by manual cleaning without stopping the machine or frequent scraper replacement. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the main structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram illustrating the usage state of an embodiment of the present utility model; The following are marked in the diagram: 1. Belt conveyor; 2. Material pit; 3. Guide plate; 4. Scraper bracket; 5. Scraper; 6. Blowing section; 7. Pressing section; 11. Return belt. Detailed Implementation

[0013] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0014] See Figures 1-2 A self-cleaning device for the surface of a belt conveyor includes a belt conveyor 1, a material pit 2 located below the tail of the belt conveyor 1, a scraper bracket 4 provided below the tail of the belt conveyor 1, the scraper bracket 4 being fixedly connected to the support of the belt conveyor 1, a scraper 5 being provided above the scraper bracket 4, the upper edge of the scraper 5 abutting against the surface of the return belt 11, the scraper 5 being connected to the scraper bracket 4 through a pressing part 7, the pressing part 7 being automatically adjustable to always press the scraper 5 against the surface of the return belt 11.

[0015] The clamping part 7 includes a sleeve fixedly connected to the scraper bracket 4. A sliding rod is installed inside the sleeve, with the top end of the sliding rod extending upwards out of the sleeve and connecting to the scraper 5. A sealing plate is installed at the bottom of the sleeve, with an internal threaded hole and an adjusting bolt screwed in. A compression spring and a pressure plate are sequentially installed inside the sleeve and below the bottom end of the sliding rod. The bottom surface of the pressure plate abuts against the end of the adjusting bolt, and the spring is always in a compressed state. Through the cooperation of the sleeve, sliding rod, adjusting bolt, compression spring, and pressure plate, a continuous and adjustable clamping force can be provided to the scraper 5. When the scraper 5 wears due to long-term use, the spring force can push the sliding rod to automatically adjust the position of the scraper 5 upwards, maintaining close contact with the belt surface. At the same time, the spring compression can be changed by rotating the adjusting bolt, flexibly adjusting the pressure of the scraper 5 on the belt, ensuring the scraping effect while avoiding excessive pressure that aggravates wear on the belt or scraper 5.

[0016] A mounting plate is fixedly connected to the top of the slide bar, and the mounting plate is detachably connected to the scraper 5 by bolts. The detachable connection between the top of the slide bar and the scraper 5 facilitates individual replacement of the scraper 5 after it has worn to a certain extent, eliminating the need for a complete replacement device, reducing maintenance costs and operational complexity. It also allows for easy replacement of the appropriate scraper 5 type according to the characteristics of different materials.

[0017] A blowing section 6 is provided on the side of the scraper 5 near the tail of the belt conveyor 1. The blowing port of the blowing section 6 is tilted upward and aligned with the upper edge of the scraper 5. The blowing section 6 on one side of the scraper 5 can periodically blow the upper edge of the scraper 5 and the belt contact area to prevent sticky materials from sticking to the scraper 5 and affecting the scraping effect.

[0018] The purging unit 6 consists of an air pipe with one end sealed, and purging holes are spaced apart on the air pipe. The other end of the air pipe is connected to an external air source; the structure is simple and easy to install.

[0019] The scraper bracket 4 is equipped with a downward-sloping guide plate 3 at its bottom, with the bottom of the guide plate 3 located above the material pit 2. Baffles are provided on both sides of the guide plate 3. The inclined guide plate 3 at the bottom of the scraper bracket 4 can guide the material scraped off by the scraper 5 to the material pit 2 below, preventing the material from falling directly and causing accumulation outside the material pit 2. This reduces the workload of subsequent manual cleaning of the scattered material around the material pit 2, making material collection more concentrated and efficient.

[0020] By using this utility model, the scraping gap can be effectively avoided due to scraper wear, thus maintaining a good scraping effect and reducing the occurrence of materials falling to the ground during the return trip of the conveyor belt. This reduces the frequency of manual cleaning and also reduces the safety risks caused by manual cleaning without stopping the machine or frequent scraper replacement.

[0021] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A self-cleaning device for the surface of a belt conveyor, comprising a belt conveyor and a material pit located below the tail end of the belt conveyor, characterized in that: A scraper bracket is installed below the tail end of the belt conveyor. The scraper bracket is fixedly connected to the belt conveyor bracket. A scraper is installed above the scraper bracket. The upper edge of the scraper abuts against the surface of the return belt. The scraper and the scraper bracket are connected by a pressing part. The pressing part can be automatically adjusted to always keep the scraper pressed against the surface of the return belt.

2. The belt conveyor belt surface self-cleaning device according to claim 1, characterized in that: The clamping part includes a sleeve fixedly connected to the scraper bracket. A sliding rod is provided inside the sleeve. The top end of the sliding rod extends upward out of the sleeve and is connected to the scraper. A sealing plate is provided at the bottom of the sleeve. The sealing plate has an internal threaded hole and an adjusting bolt is screwed on it. A clamping spring and a pressure plate are arranged in sequence inside the sleeve and below the bottom end of the sliding rod. The bottom surface of the pressure plate abuts against the end of the adjusting bolt. The spring is always in a compressed state.

3. The belt conveyor belt surface self-cleaning device according to claim 2, characterized in that: A mounting plate is fixedly connected to the top of the slide bar, and the mounting plate is detachably connected to the scraper by bolts.

4. The belt conveyor belt surface self-cleaning device according to claim 1, characterized in that: A purging section is provided on the side of the scraper near the tail of the belt conveyor, with the purging nozzle of the purging section tilted upwards and aligned with the upper edge of the scraper.

5. The belt conveyor belt surface self-cleaning device according to claim 4, characterized in that: The purging unit consists of an air pipe with one end sealed, and purging holes spaced apart on the air pipe. The other end of the air pipe is connected to an external air source.

6. The belt conveyor belt surface self-cleaning device according to claim 1, characterized in that: The scraper support has a downward-sloping guide plate at the bottom, with the bottom of the guide plate located above the material pit.

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