Scraping device for belt conveyor

Abstract

The utility model discloses a scraping device for a belt conveyor, which belongs to the technical field of mechanical transmission, comprises a U-shaped support, and is characterized in that the U-shaped support is composed of a horizontal rod piece and two vertical rod pieces, a scraping mechanism capable of switching scraping modes is rotatably mounted on the U-shaped support, and the horizontal rod piece and the two vertical rod pieces are arranged on the U-shaped support. A vertical rod piece of the U-shaped support is fixedly connected with the two ends of a rack of the belt conveyor through an automatic pressing mechanism, a collecting assembly used for collecting returned materials is arranged on a horizontal rod piece of the U-shaped support, and a driving assembly used for driving the scraping mechanism is fixedly installed on the collecting assembly. The scraping mechanism can be switched between the scraping plate scraping mode and the bristle scraping mode through the electric push rod, the scraping plate is prevented from acting on the belt for a long time, the service life of the belt is prolonged, the scraping assembly is made to be attached to the lower surface of the belt all the time through the tension of the spring, and the good cleaning effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, in particular to a scraper device for a belt conveyor. Background Art

[0002] Belt conveyors are a very commonly used conveying equipment in some manufacturing industries. For some powdery and granular products, especially powdery particles that are easily affected by moisture and agglomerate, the powdery particles often stick to the surface of the conveyor belt during the conveying process. If they are not cleaned promptly and effectively, the debris adhering to the conveyor belt will enter between the roller and the belt, and rub against each other, thereby causing wear and tear, affecting the service life of the conveyor and the on-site transportation efficiency.

[0003] Existing conveyor belt cleaning devices often use polyurethane scrapers to scrape off a large amount of material adhering to the surface of the conveyor belt. However, the scrapers will be severely worn after long-term use, which seriously affects the service life of the belt. Utility Model Content

[0004] The utility model aims to provide a scraper device for a belt conveyor, aiming to solve the problem in the above background technology that the long-term use of the scraper affects the service life of the belt.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a scraper device for a belt conveyor, comprising a U-shaped bracket located below a belt conveyor frame, the U-shaped bracket consisting of a horizontal rod and two vertical rods, a scraper mechanism with switchable scraping modes is rotatably mounted on the U-shaped bracket, the vertical rods of the U-shaped bracket are fixedly connected to both ends of the belt conveyor frame through an automatic clamping mechanism, a collecting assembly is provided on the horizontal rod of the U-shaped bracket, and a driving assembly for driving the scraper mechanism is fixedly mounted on the collecting assembly.

[0006] Furthermore, the scraper mechanism includes a first cross bar, a V-shaped piece and a second cross bar, the first cross bar is rotatably connected to the U-shaped bracket and is located directly above the horizontal rod of the U-shaped bracket, one end of the first cross bar passes through the vertical rod of the U-shaped bracket and extends to the outside, two V-shaped pieces are provided and are located inside the U-shaped bracket, the two V-shaped pieces are arranged on the first cross bar at intervals, and the second cross bars are fixedly connected between the two free ends corresponding to each other, one of the second cross bars is provided with an inclined scraper at the top, and the other second cross bar is provided with bristles at the top.

[0007] Furthermore, the collecting assembly includes a material guide trough, which is arranged on one side of the horizontal rod of the U-shaped bracket and below the scraper. The middle part of the bottom surface of the material guide trough is higher than the two ends of the bottom surface and is smoothly inclined toward the two ends. The lower parts of both ends of the material guide trough are connected to material receiving boxes.

[0008] Furthermore, the driving assembly includes an electric push rod and a connecting rod fixedly connected to one side of the material receiving box. The connecting rod is located on the part of the rod body extending from the first cross bar to the outside of the U-shaped bracket and is arranged vertically along the axial direction of the first cross bar. The output end of the electric push rod is hinged to the free end of the connecting rod.

[0009] Furthermore, the automatic clamping mechanism includes a vertically arranged sleeve and a spring, wherein two sleeves are provided and are respectively welded to the belt conveyor frame at both ends of the belt, the vertical rod of the U-shaped bracket passes through the sleeve, the top of the vertical rod of the U-shaped bracket is provided with a threaded section and is threadedly connected with a nut, the spring is sleeved on the vertical rod of the U-shaped bracket and one end is fixedly connected to the lower surface of the nut, and the other end is fixedly connected to the upper end of the sleeve.

[0010] The utility model has the following beneficial effects:

[0011] The utility model provides a scraper device for a belt conveyor. Through the tension of a spring, the upper edge of the scraper assembly is always kept close to the lower surface of the belt to ensure a good cleaning effect. The scraping mode of the scraper assembly can be freely switched by an electric push rod to extend the service life of the belt while ensuring the cleaning effect. By setting a collecting assembly, it is convenient to recycle the belt return material for reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the scraping mechanism and the driving assembly in the utility model;

[0014] In the figure: 1. U-shaped bracket; 2. first cross bar; 3. V-shaped member; 4. second cross bar; 5. scraper; 6. bristles; 7. material guide trough; 8. material receiving box; 9. electric push rod; 10. connecting rod; 11. sleeve; 12. spring; 13. nut. DETAILED DESCRIPTION

[0015] like Figures 1 to 2 As shown, a scraper device for a belt conveyor comprises a U-shaped bracket 1 located below a belt conveyor frame, the U-shaped bracket 1 consists of a horizontal rod and two vertical rods, a scraper mechanism with a switchable scraping mode is rotatably mounted on the U-shaped bracket 1, the vertical rod of the U-shaped bracket 1 is fixedly connected to both ends of the belt conveyor frame through an automatic clamping mechanism, a collecting assembly is provided on the horizontal rod of the U-shaped bracket 1, and a driving assembly for driving the scraper mechanism is fixedly mounted on the collecting assembly.

[0016] The scraper mechanism includes a first cross bar 2, a V-shaped member 3 and a second cross bar 4. The first cross bar 2 is rotatably connected to the U-shaped bracket 1 and is located directly above the horizontal rod of the U-shaped bracket 1. One end of the first cross bar 2 passes through the vertical rod of the U-shaped bracket 1 and extends to the outside. Two V-shaped members 3 are provided and are located inside the U-shaped bracket 1. The two V-shaped members 3 are arranged on the first cross bar 2 at intervals. The second cross bars 4 are fixedly connected between the two free ends corresponding to each other. One of the second cross bars 4 is provided with an inclined scraper 5 at the top, and the other second cross bar 4 is provided with bristles 6 at the top. The upper edges of the scraper 5 and the bristles 6 are always in close contact with the lower surface of the lower belt of the belt conveyor.

[0017] The collecting assembly includes a material guide trough 7, which is arranged on one side of the horizontal rod of the U-shaped bracket 1 and below the scraper 5. The middle of the bottom surface of the material guide trough 7 is higher than the two ends of the bottom surface and is smoothly inclined toward the two ends. The lower parts of the two ends of the material guide trough 7 are connected to material receiving boxes 8 for recycling and collecting returned materials.

[0018] The driving assembly includes an electric push rod 9 and a connecting rod 10 fixedly connected to one side of the material receiving box 8. The connecting rod 10 is located on the part of the rod body extending from the first cross bar 2 to the outside of the U-shaped bracket 1 and is arranged vertically along the axial direction of the first cross bar 2. The output end of the electric push rod 9 is hinged to the free end of the connecting rod 10.

[0019] The automatic clamping mechanism includes a vertically arranged sleeve 11 and a spring 12. Two sleeves 11 are provided and are respectively welded to the belt conveyor frame at both ends of the belt. The vertical rod of the U-shaped bracket 1 passes through the sleeve 11. The top of the vertical rod of the U-shaped bracket 1 is provided with a threaded section and is threadedly connected with a nut 13. The spring 12 is sleeved on the vertical rod of the U-shaped bracket 1 and one end is fixedly connected to the lower surface of the nut 13, and the other end is fixedly connected to the upper end of the sleeve 11. The spring 12 is always in a clamped state and has an upward tension, driving the U-shaped bracket 1 upward, so that the scraping mechanism is always close to the lower surface of the belt during operation.

[0020] The specific operation process of the utility model is as follows:

[0021] When the belt conveyor is in operation, the tension of the spring 12 keeps the scraper assembly close to the lower surface of the belt. The return material on the belt is scraped off by the scraper assembly, falls into the material guide trough 7, and then falls into the material receiving box 8 along the inclined bottom surface. By starting the electric push rod 9 to drive the V-shaped part 3 to rotate, the scraping of the scraper 5 is switched to the brush 6 for cleaning, which ensures the cleaning effect while extending the service life of the belt to the greatest extent.

Claims

1. A scraper device for a belt conveyor, comprising a U-shaped bracket (1) located below a frame of the belt conveyor, characterized in that: The U-shaped bracket (1) is composed of a horizontal rod and two vertical rods. A scraping mechanism with a switchable scraping mode is rotatably mounted on the U-shaped bracket (1). The vertical rods of the U-shaped bracket (1) are fixedly connected to the two ends of the belt conveyor frame through an automatic clamping mechanism. A collecting component is provided on the horizontal rod of the U-shaped bracket (1). A driving component for driving the scraping mechanism is fixedly mounted on the collecting component.

2. A scraper device for a belt conveyor according to claim 1, characterized in that: The scraper mechanism comprises a first cross bar (2), a V-shaped member (3) and a second cross bar (4); the first cross bar (2) is rotatably connected to the U-shaped bracket (1) and is located directly above the horizontal member of the U-shaped bracket (1); one end of the first cross bar (2) penetrates the vertical member of the U-shaped bracket (1) and extends to the outside; two V-shaped members (3) are provided and are located inside the U-shaped bracket (1); the two V-shaped members (3) are arranged on the first cross bar (2) at intervals; two free ends of the two V-shaped members (3) corresponding to each other are respectively fixedly connected with a second cross bar (4); a scraper (5) arranged obliquely is provided at the top end of one of the second cross bars (4); and bristles (6) are provided at the top end of the other second cross bar (4).

3. A scraper device for a belt conveyor according to claim 1, characterized in that: The collecting assembly comprises a material guide trough (7), the material guide trough (7) being arranged on one side of the horizontal rod of the U-shaped bracket (1) and being located below the scraper (5), the middle part of the bottom surface of the material guide trough (7) being higher than both ends of the bottom surface and being smoothly inclined towards both ends, and the lower parts of both ends of the material guide trough (7) being connected to a material receiving box (8).

4. A scraper device for a belt conveyor according to claim 3, characterized in that: The driving assembly comprises an electric push rod (9) and a connecting rod (10) fixedly connected to one side of the material receiving box (8); the connecting rod (10) is located on a portion of the rod body extending from the first cross bar (2) to the outside of the U-shaped bracket (1) and is arranged vertically along the axial direction of the first cross bar (2); the output end of the electric push rod (9) is hinged to the free end of the connecting rod (10).

5. The scraper device for a belt conveyor according to claim 1, characterized in that: The automatic clamping mechanism comprises a vertically arranged sleeve (11) and a spring (12); two sleeves (11) are provided and are respectively welded to the belt conveyor frame at both ends of the belt; the vertical rod of the U-shaped bracket (1) passes through the sleeve (11); the top of the vertical rod of the U-shaped bracket (1) is provided with a threaded section and is threadedly connected to a nut (13); the spring (12) is sleeved on the vertical rod of the U-shaped bracket (1) and one end is fixedly connected to the lower surface of the nut (13), and the other end is fixedly connected to the upper end of the sleeve (11).

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