Scraper for dry type belt washer

Abstract

The utility model discloses a dry type belt washer scraper blade, including support frame, conveyer belt, upper part dust collection box and lower part dust collection box, conveyer belt below is equipped with the scraper blade, the both sides of scraper blade are equipped with the splint, the lower part of splint is connected with the rotating pipe, the rotating pipe is connected with the connecting plate, the connecting plate is equipped with the connecting rod, and the connecting rod is equipped with the connecting rod. An elastic assembly is arranged on the connecting rod and comprises a gasket and a spring, a fixing plate and a nut assembly are installed at the two ends of the elastic assembly respectively, a transverse rod is fixedly connected to the end, close to the connecting plate, of the connecting rod, the transverse rod is higher than the upper end face of the connecting plate, and the clamping plate and the connecting plate are both fixedly connected to the rotating pipe. The central axes of the clamping plates and the connecting plates are located on the same plane. Compared with the prior art, the scraper device has the advantages that the elastic assembly is installed at the bottom of the scraper, and when the scraper is abraded and a gap is formed between the scraper and the conveying belt, the scraper is automatically deflected so that the scraper can abut against the conveying belt all the time.

Description

Technical Field

[0001] The utility model belongs to the field of scrapers, in particular to a scraper for a dry belt cleaner. Background Art

[0002] In coal mining and transportation, the mined ore needs to be transported through a conveyor belt. For safety and environmental protection requirements, the transported ore needs to be treated with water spraying. The soaked conveyor belt often encounters freezing and frost-sticking problems because it is located in cold areas or in winter.

[0003] Conveyor belts that freeze and stick in cold environments are not suitable for wet cleaning. The common dry cleaning method using scrapers is prone to wear and tear due to frequent friction, which causes scraper loss. It is necessary to frequently adjust the distance between the scraper and the conveyor belt surface to ensure that the scraper can work normally. However, frequent scraper adjustment operations will lead to low scraper working efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a scraper for a dry belt cleaning device to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a scraper for a dry belt cleaning device, including a supporting frame, a conveyor belt, an upper dust collection box and a lower dust collection box. A scraper is installed under the conveyor belt, and clamps are installed on both sides of the scraper. A rotating tube is connected under the clamp, and a connecting plate is connected to the rotating tube. A connecting rod is installed on the connecting plate, and an elastic component is provided on the connecting rod. The elastic component includes a washer and a spring, and a fixing plate and a nut assembly are respectively installed at both ends of the elastic component.

[0006] In one or more embodiments of the present invention, a cross bar is fixedly connected to one end of the connecting rod close to the connecting plate, and the cross bar is higher than the upper end surface of the connecting plate.

[0007] In one or more embodiments of the present invention, a second notch cooperating with the connecting rod is formed on the connecting plate, and the connecting rod passes through the second notch.

[0008] In one or more embodiments of the present invention, a first notch cooperating with the connecting rod is formed on the fixing plate, and the connecting rod passes through the first notch.

[0009] In one or more embodiments of the present invention, the fixing plate is an L-shaped structure, and the end without the first notch is fixedly connected to the lower dust collection box.

[0010] In one or more embodiments of the present invention, the spring is a compression spring.

[0011] In one or more embodiments of the present invention, there are two washers, which are respectively arranged on both sides of the spring.

[0012] In one or more embodiments of the present invention, the two washers are respectively arranged between the spring and the fixing plate and between the spring and the nut assembly.

[0013] In one or more embodiments of the present invention, the washer, spring and nut assembly are all sleeved on the connecting rod.

[0014] In one or more embodiments of the present invention, the clamping plate and the connecting plate are both fixedly connected to the rotating tube, and the central axes of the clamping plate and the connecting plate are in the same plane.

[0015] Compared with the prior art, the beneficial effect of the present invention is that an elastic component is installed at the bottom of the scraper, and when the scraper is worn and a distance is generated from the conveyor belt, the scraper is automatically deflected so that the scraper and the conveyor belt are always in abutment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a scraper for a dry belt cleaner in one embodiment of the present utility model;

[0017] Figure 2 This is a first structural diagram of a scraper for a dry-type belt cleaner in one embodiment of the present utility model;

[0018] Figure 3 This is a second structural diagram of a scraper for a dry-type belt cleaner in one embodiment of the present utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a diagram of the internal structure of a scraper for a dry belt cleaner in one embodiment of the present utility model.

[0021] Description of main reference numerals:

[0022] 1-support frame, 2-conveyor belt, 3-upper dust box, 4-lower dust box, 401-dust suction pipe, 402-baffle, 403-fixed plate, 4031-first notch, 5-scraper, 6-rotating tube, 601-clamping plate, 602-connecting plate, 6022-second notch, 7-connecting rod, 701-cross bar, 702-washer, 703-spring, 704-nut assembly. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0024] The utility model is used for dry cleaning of frozen coal mine conveyor belts in cold areas or low-temperature environments, and uses a scraper that can automatically adjust the deflection angle to achieve the abutment between the scraper and the conveyor belt, avoiding manual adjustment of the worn scraper to affect the working efficiency of the scraper.

[0025] refer to Figure 1-Figure 2 As shown, a dry belt cleaning scraper includes a support frame 1, a conveyor belt 2, an upper dust box 3, and a lower dust box 4. A roller brush is installed inside the upper dust box 3 to clean the upper surface of the conveyor belt 2. The cleaned impurities are extracted and removed by the upper dust box 3. A dry belt cleaning scraper with a scraper is installed inside the lower dust box 4 to clean the lower side of the conveyor belt 2. The cleaned coal slag and impurities fall down and are extracted and removed by the dust pipe 401 in the lower dust box 4 below the conveyor belt 2 under the obstruction of the baffle 402. The upper dust box 3 and the lower dust box 4 on the upper and lower surfaces of the conveyor belt 2 and the belt washers therein simultaneously clean the upper and lower surfaces of the conveyor belt 2 and extract the cleaned dust and impurities.

[0026] refer to Figure 4-Figure 5 As shown, multiple scrapers 5 are mounted below the conveyor belt 2. Each scraper 5 is flanked by two clamps 601. Clamps 601 are used to secure the scrapers 5 within them. Clamps 601 are located on either side of the inclined scraper 5, near the bottom. These clamps are provided with holes for bolting the scrapers 5. A rotating tube 6 is connected below the clamps 601, which is attached to a connecting plate 602. Both clamps 601 and connecting plate 602 are fixedly connected to the rotating tube 6, with their central axes coplanar. In other words, deflecting the connecting plate 602 rotates the rotating tube 6, simultaneously driving the clamps 601 on the rotating tube 6 and the scrapers 5 between them to deflect. By controlling the deflection of the connecting plate 602, the inclination angle of the scrapers 5 can be controlled.

[0027] A connecting rod 7 is mounted on the connecting plate 602. A second notch 6022 is defined on the connecting plate 602, which mates with the connecting rod 7. The connecting rod 7 extends through the second notch 6022. A crossbar 701 is fixedly connected to the end of the connecting rod 7 near the connecting plate 602. The crossbar 701 is perpendicular to the second notch 6022 and is higher than the upper end surface of the connecting plate 602. Pulling the connecting rod 7 causes the connecting plate 602 to deflect via the crossbar 701. In other words, pulling the connecting rod 7 causes the connecting plate 602 to deflect, thereby deflecting the scraper 5.

[0028] refer to Figure 4-Figure 5As shown, the connecting rod 7 is provided with an elastic assembly comprising a washer 702 and a spring 703. A fixing plate 403 and a nut assembly 704 are mounted on each end of the elastic assembly. Two washers 702 are provided, one on each side of the spring 703. The other washers 702 are positioned between the spring 703 and the fixing plate 403, and between the spring 703 and the nut assembly 704. The fixing plate 403 defines a first notch 4031 that mates with the connecting rod 7. The connecting rod 7 extends through the first notch 4031. The washer 702, spring 703, and nut assembly 704 are all sleeved onto the connecting rod 7.

[0029] refer to Figure 2-Figure 5 As shown, the fixing plate 403 is an L-shaped structure, and the end without the first notch 4031 is fixedly connected to the lower dust box 4. The spring 703 is a compression spring. When the nut assembly 704 is used to be sleeved and fixed on 7, the nut assembly 704 is tightened in the direction close to the fixing plate 403. In this process, the spring 703 is compressed. When the nut assembly 704 is fixed relative to the connecting rod 7, the spring 703 will rebound to both sides due to the compression. At this time, the side of the spring 703 close to the fixing plate 403 cannot rebound because the fixing plate 403 is fixed to the lower dust box 4. The spring 703 will apply the rebound force to the nut assembly 704 on the other side. The nut assembly 704 is fixed to the connecting rod 7, and the spring 703 will drag the connecting rod 7 to the side away from the fixing plate 403.

[0030] When the spring 703 drags the connecting rod 7 to the side away from the fixed plate 403, the cross bar 701 on the connecting rod 7 drives the connecting plate 602 to deflect. Since the connecting plate 602 and the clamping plate 601 are both fixedly connected to the rotating tube 6 and the central axes are in the same plane, the clamping plate 601 deflects synchronously, and at the same time drives the scraper 5 fixed inside the clamping plate 601 to deflect upward. When the scraper 5 deflects upward, the scraper 5 will press against the lower end surface of the conveyor belt 2 above the scraper 5, thereby scraping the moving conveyor belt 2 and scraping off the attachments on the lower surface of the conveyor belt 2, thereby achieving dry cleaning of the conveyor belt 2.

[0031] refer to Figure 2-Figure 5 As shown, when the scraper 5 is constantly scraping the conveyor belt 2, wear will occur. When the scraper 5 is spaced apart from the conveyor belt 2 due to wear, the lower spring 703 will further drag the connecting rod 7 to move, further deflecting the connecting plate 602, the clamping plate 601 and the scraper 5, so that the scraper 5 is further deflected and presses against the conveyor belt 2 to continue cleaning the conveyor belt 2, thereby realizing automatic deflection of the scraper 5 when the scraper 5 is worn.

[0032] During specific use, when the conveyor belt 2 passes through the dry belt cleaner, the upper dust box 3 above it cleans and dusts the upper end surface of the conveyor belt 2 through its internal roller brush, and the lower dust box 4 below it cleans the lower end surface of the conveyor belt 2 through the scraper 5 below the conveyor belt 2, and dusts the cleaned material through the lower dust box 4.

[0033] The deflection of the scraper 5 is controlled by the connecting rod 7, and a cross bar 701 is fixedly connected to the connecting rod 7. The cross bar 701 can drive the connecting plate 602 to deflect. The connecting plate 602 can synchronously drive the splint 601 which is also fixedly connected to the rotating tube 6 and is in the same plane as the central axis of the connecting plate 602 and realize synchronous deflection, thereby driving the scraper 5 connected by bolts in the splint 601, that is, deflecting the scraper 5 by dragging the connecting rod 7.

[0034] The spring 703 is a compression spring. After the spring 703 is compressed, one end of the spring 703 presses against the fixing plate 403, and the other end applies force to the nut assembly 704. The nut assembly 704 fixed on the connecting rod 7 drags the connecting rod 7 downward, and finally deflects the scraper 5 by dragging the connecting rod 7. The scraper 5 abuts against the conveyor belt 2, allowing it to clean the conveyor belt 2. When the scraper 5 wears and gaps due to friction with the conveyor belt 2, the connecting rod 7 is further dragged and the scraper 5 is deflected, so that the scraper 5 abuts against the conveyor belt 2 again and continues to clean.

[0035] Compared with the prior art, the beneficial effect of the present invention is that an elastic component is installed at the bottom of the scraper, and when the scraper is worn and a distance is generated from the conveyor belt, the scraper is automatically deflected so that the scraper and the conveyor belt are always in abutment.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A scraper for a dry belt washer, comprising a support frame, a conveyor belt, an upper dust collection box and a lower dust collection box, characterized in that: A scraper is installed under the conveyor belt, and clamping plates are installed on both sides of the scraper. A rotating tube is connected under the clamping plate, and a connecting plate is connected to the rotating tube. A connecting rod is installed on the connecting plate, and an elastic component is provided on the connecting rod. The elastic component includes a washer and a spring, and a fixing plate and a nut component are respectively installed at both ends of the elastic component.

2. The scraper for a dry belt cleaner according to claim 1, characterized in that: The connecting rod is fixedly connected to one end thereof close to the connecting plate with a cross bar, and the cross bar is higher than the upper end surface of the connecting plate.

3. The scraper for a dry belt cleaner according to claim 2, characterized in that: The connecting plate is provided with a second notch matched with the connecting rod, and the connecting rod passes through the second notch.

4. The scraper for a dry belt cleaner according to claim 1, characterized in that: The fixing plate is provided with a first notch matched with the connecting rod, and the connecting rod passes through the first notch.

5. The scraper for a dry belt cleaner according to claim 4, characterized in that: The fixing plate is an L-shaped structure, and the end without the first notch is fixedly connected to the lower dust collection box.

6. The scraper for a dry belt cleaner according to claim 1, characterized in that: The spring is a compression spring.

7. The scraper for a dry belt cleaner according to claim 1 or 6, characterized in that: There are two washers, which are respectively arranged on both sides of the spring.

8. The scraper for a dry belt cleaner according to claim 7, characterized in that: The two washers are respectively arranged between the spring and the fixing plate and between the spring and the nut assembly.

9. The scraper for a dry belt cleaner according to claim 7, characterized in that: The washer, spring and nut assembly are all sleeved on the connecting rod.

10. The scraper for a dry belt cleaner according to claim 1, wherein: The clamping plate and the connecting plate are both fixedly connected to the rotating tube, and the central axes of the clamping plate and the connecting plate are in the same plane.

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