Device for reducing friction force at bottom of blanking port of conveying belt

Abstract

The utility model relates to the technical field of conveying belts, in particular to a device for reducing friction force at the bottom of a discharging port of a conveying belt, which comprises two supporting plates, a driven roller and a driving roller are respectively and rotatably mounted at the head and tail ends of the two supporting plates, and the conveying belt is wound between the driven roller and the driving roller. A driving motor for driving the driving roller to rotate to achieve movement of the conveying belt is installed on the outer walls of the supporting plates, the blanking hopper is installed on the two supporting plates through an installation plate, a sliding plate is rotationally arranged on the installation plate, and the sliding plate is obliquely arranged below a blanking opening of the blanking hopper. Materials downwards fall onto the inclined sliding plate from the blanking opening of the blanking hopper, and after the materials are guided and buffered through the sliding plate, the descending acceleration of the materials is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor belts, in particular to a device for reducing friction at the bottom of a conveyor belt drop opening. Background Art

[0002] Conveyors are a type of mechanical equipment used for material handling and are widely used in manufacturing, logistics, warehousing, food processing and other industries.

[0003] When materials are dropped from the hopper onto the conveyor belt, they generally fall vertically from the drop port onto the conveyor belt. When the materials are heavy, they fall vertically downward from the drop port onto the conveyor belt. As the vertical downward acceleration of the materials increases, the conveyor belt is easily attached to the supporting components, thereby increasing the friction between the conveyor belt and its supporting components, thereby reducing the conveying efficiency of the conveyor belt.

[0004] Based on this, it is necessary to design a device to reduce the friction at the bottom of the conveyor belt drop port. Utility Model Content

[0005] The technical solution is: a device for reducing the friction at the bottom of the conveyor belt drop outlet, including a support plate, a passive roller, an active roller, a conveyor belt, a drop hopper and a slide plate. The passive roller and the active roller are rotatably installed at the head and tail ends of the two support plates respectively, and the conveyor belt is wound around the passive roller and the active roller. A driving motor for driving the active roller to rotate to realize the movement of the conveyor belt is installed on the outer wall of the support plate. The drop hopper is installed on the two support plates through a mounting plate. A slide plate is rotatably provided on the mounting plate. The slide plate is obliquely arranged below the drop outlet of the drop hopper. It is used to guide and buffer the material falling from the drop outlet of the drop hopper to reduce the vertical force of the drop material on the conveyor belt, thereby reducing the friction between the conveyor belt and its bottom support.

[0006] Furthermore, a torsion spring is provided on the shaft on which the skateboard is rotatably mounted on the mounting plate, and the two ends of the torsion spring are respectively connected to the skateboard and the mounting plate. Limit rods are provided on both sides of the skateboard, and the limit rods are installed on the inner wall of the mounting plate. The limit rods are used to limit the rotation angle of the skateboard.

[0007] Furthermore, upper rollers are arranged laterally and equidistantly between the two support plates. The upper rollers are arranged between the passive roller and the active roller, and the heights of the passive roller and the active roller are higher than the height of the upper rollers. The upper rollers are used to provide support for the part of the conveyor belt that carries materials and guide the conveyor belt to run along a predetermined path.

[0008] Furthermore, lower rollers are slidingly provided at the lower parts of the two support plates. The lower rollers are provided below the conveyor belt and are used to provide support for the unloaded part of the conveyor belt and maintain a certain tension.

[0009] Furthermore, the ends of the lower roller passing through the support plate are commonly connected with a connecting plate, an air cylinder is installed on the outer wall of the support plate, and the movable end of the cylinder piston rod is connected to the connecting plate.

[0010] Furthermore, parallel vertical grooves are provided on the support plate, in which scraping rollers and scrapers are slidably connected respectively. The scraping rollers and scrapers pass through the ends of the support plate and are connected to the connecting plate. The scraping rollers are in contact with the conveyor belt, and the scraping rollers and scrapers constitute a scraping mechanism for scraping off the sticky materials on the conveyor belt.

[0011] The beneficial effects of the present invention are as follows: the material falls downward from the discharge port of the discharge hopper onto the inclined slide. After the material is guided and buffered by the slide, the acceleration of the material's descent is reduced, thereby reducing the instantaneous force of the material on the conveyor belt in the vertical direction, thereby preventing the conveyor belt from clinging downward to its supporting components, thereby reducing the friction between the conveyor belt and its bottom support part, and achieving the effect of reducing the friction at the bottom of the discharge port of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 This is a sectional view of the three-dimensional structure of the support plate and the connecting plate of the utility model.

[0014] Figure 3 For this utility model Figure 2 Magnified image of .

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model without one side support plate.

[0016] Figure 5 It is a three-dimensional structural sectional view of the drop hopper and slide plate of the utility model.

[0017] Figure 6 It is a schematic diagram of the three-dimensional structure of the scraping roller and scraper of the utility model.

[0018] The names and serial numbers of the parts in the figure are: 1_support plate, 2_passive roller, 201_active roller, 3_conveyor belt, 4_drive motor, 5_cylinder, 501_connecting plate, 6_dropping hopper, 601_mounting plate, 602_slide plate, 603_limiting rod, 604_torsion spring, 7_lower roller, 701_scraper roller, 702_scraper, 703_guide rod, 704_upper roller. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings.

[0020] Embodiment: A device for reducing friction at the bottom of a conveyor belt drop opening, such as Figure 1 and Figure 5 As shown, it includes a support plate 1, a passive roller 2, an active roller 201, a conveyor belt 3, a drop hopper 6 and a slide plate 602. The passive roller 2 and the active roller 201 are rotatably installed at the head and tail ends of the two support plates 1 respectively. The conveyor belt 3 is wound around the passive roller 2 and the active roller 201. A driving motor 4 is installed on the outer wall of the support plate 1 to drive the active roller 201 to rotate to realize the movement of the conveyor belt 3. The drop hopper 6 is installed on the two support plates 1 through the mounting plate 601. A slide plate 602 is rotatably set on the mounting plate 601. The slide plate 602 is obliquely arranged below the drop port of the drop hopper 6. It is used to guide and buffer the material falling from the drop port of the drop hopper 6 to reduce the vertical force of the falling material on the conveyor belt 3, thereby reducing the friction between the conveyor belt 3 and its bottom support.

[0021] In a specific embodiment, the present application relates to a device for reducing the friction at the bottom of a conveyor belt drop port, the device comprising a support frame (not shown in the prior art figure), two vertical support plates 1 mounted on the support frame, a passive roller 2 and an active roller 201 rotatably connected at the head and tail ends of the two support plates 1, and a conveyor belt 3 wound around the passive roller 2 and the active roller 201, wherein a driving motor 4 is installed on one support plate 1 to drive the active roller 201 to rotate to realize the movement of the conveyor belt 3, the output shaft of the driving motor 4 is connected to the active roller 201 through a reducer, and the reduction mechanism is a helical gear reducer, which has the advantages of high efficiency, stability and low noise; the passive roller 2 slides with the horizontal slide groove on the support plate 1, thereby realizing the adjustment of the distance between the passive roller 2 and the active roller 201 according to the length of the conveyor belt 3; the two support plates 1 A mounting plate 601 is provided on the top, and a drop hopper 6 is installed between the two mounting plates 601. A slide plate 602 is provided between the two mounting plates 601 for rotation. The slide plate 602 is obliquely arranged below the drop port of the drop hopper 6. Since it is obliquely arranged below the drop port, the obliquely arranged slide plate 602 can guide the material falling from the drop port of the drop hopper 6 and offset the force of its falling, so as to reduce the vertical force of the falling material on the conveyor belt 3. Since the material falls vertically on the conveyor belt 3, the conveyor belt 3 will fit closely with its support member downward, thereby increasing the friction force. The material slides obliquely onto the conveyor belt 3 through the slide plate 602, reducing the instantaneous force of the material on the conveyor belt 3 in the vertical direction, thereby reducing the friction between the conveyor belt 3 and its bottom support portion, thereby reducing the friction force at the bottom of the drop port of the conveyor belt 3.

[0022] Further, if Figure 5As shown, a torsion spring 604 is provided on the shaft on which the skateboard 602 is rotatably mounted on the mounting plate 601. The two ends of the torsion spring 604 are respectively connected to the skateboard 602 and the mounting plate 601. Limit rods 603 are provided on both sides of the skateboard 602. The limit rods 603 are installed on the inner wall of the mounting plate 601. The limit rods 603 are used to limit the rotation angle of the skateboard 602.

[0023] Here, a torsion spring 604 is provided on the shaft on which the slide 602 and the mounting plate 601 are rotatably mounted. The two ends of the torsion spring 604 are respectively connected to the slide 602 and the mounting plate 601. The torsion spring 604 is provided for resetting the slide 602. At the same time, the torsion spring 604 is used to offset the downward force of the material falling on the slide 602, thereby reducing the falling speed of the falling material and reducing the instantaneous falling speed; limit rods 603 are provided on both sides of the slide 602, and the limit rods 603 are installed on the inner wall of the mounting plate 601. The limit rods 603 are used to limit the rotation angle of the slide 602, thereby avoiding the slide 602 from rotating too much downward due to excessive weight of the falling material and pressing against the conveyor belt 3, thereby increasing the friction between the conveyor belt 3 and its supporting components. This phenomenon can be effectively avoided by the limit rods 603.

[0024] Further, if Figure 2-Figure 4 As shown, upper rollers 704 are arranged laterally and equidistantly between the two support plates 1. The upper rollers 704 are arranged between the passive roller 2 and the active roller 201, and the heights of the passive roller 2 and the active roller 201 are higher than the height of the upper rollers 704. The upper rollers 704 are used to provide support for the part of the conveyor belt 3 that carries the materials and guide the conveyor belt 3 to run along a predetermined path.

[0025] It is worth noting that upper rollers 704 are arranged equidistantly laterally between the two support plates 1. The upper rollers 704 are arranged between the passive roller 2 and the active roller 201. The upper rollers 704 are composed of two oblique components and a transverse rod-shaped component, wherein the transverse rod-shaped component and the oblique component are rotatably connected through oil-free bearings. When the conveyor belt 3 contacts the transverse upper rod-shaped component of the upper roller 704, the friction between the conveyor belt 3 and the upper roller 704 is reduced by the rotation of the transverse rod-shaped component, thereby enabling the upper rollers 704 to provide support for the part of the conveyor belt 3 that carries the materials. At the same time, the conveyor belt 3 is guided by the two oblique components to achieve the function of guiding the conveyor belt 3 to run along a predetermined path.

[0026] Further, if Figure 2-Figure 4 As shown, lower rollers 7 are slidingly provided at the lower part of the two support plates 1. The lower rollers 7 are provided below the conveyor belt 3 and are used to provide support for the unloaded portion of the conveyor belt 3 and maintain a certain tension.

[0027] Further, if Figure 2-Figure 4As shown, the ends of the lower roller 7 passing through the support plate 1 are connected to a connecting plate 501 . A cylinder 5 is installed on the outer wall of the support plate 1 , and the movable end of the piston rod of the cylinder 5 is connected to the connecting plate 501 .

[0028] It is worth noting that the ends of the lower roller 7 passing through the support plate 1 are commonly connected with a connecting plate 501, and a cylinder 5 is installed on the outer wall of the support plate 1. The movable end of the piston rod of the cylinder 5 is connected to the connecting plate 501. When the piston rod of the cylinder 5 extends downward, the piston rod of the cylinder 5 drives the connecting plate 501 to drive the lower roller 7 to move downward, thereby releasing the tension on the conveyor belt 3, providing convenience for replacing the conveyor belt 3; when the piston rod of the cylinder 5 contracts upward, the piston rod of the cylinder 5 drives the connecting plate 501 to drive the lower roller 7 to move upward, thereby increasing the tension on the conveyor belt 3, so that the conveyor belt 3 remains in a tensioned state, and the transportation is more efficient.

[0029] Further, if Figure 3 、 Figure 4 and Figure 6 As shown, parallel vertical grooves are provided on the support plate 1, and scraper rollers 701 and scraper plates 702 are slidably connected in the vertical grooves respectively. The scraper rollers 701 and scraper plates 702 pass through the ends of the support plate 1 and are connected to the connecting plate 501. The scraper rollers 701 are in contact with the conveyor belt 3, and the scraper rollers 701 and scraper plates 702 constitute a scraping mechanism for scraping the adhered materials on the conveyor belt 3. The scraper rollers 701 and scraper plates 702 constitute a comb-shaped structure. The scraper rollers 701 are in close contact with the conveyor belt 3 to remove the adhesions on the conveyor belt 3, and the scraper plates 702 are used to scrape off the adhesions on the scraper rollers 701, thereby realizing the function of removing the adhesions on the conveyor belt 3. The part of the scraper plates 702 located in the vertical groove is a rectangular setting adapted to the vertical groove. A guide rod 703 is provided in the vertical groove where the scraper roller 701 is slidably provided. The guide rod 703 slides through the scraper roller 701, and the guide rod 703 provides a guiding effect for the lifting and lowering movement of the scraper roller 701.

[0030] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A device for reducing the friction force at the bottom of a conveyor belt blanking port, comprising two support plates (1), a passive roller (2) and an active roller (201) being rotatably mounted at the head and tail ends of the two support plates (1), a conveyor belt (3) being wound between the passive roller (2) and the active roller (201), a driving motor (4) for driving the active roller (201) to rotate so as to realize the movement of the conveyor belt (3) being mounted on the outer wall of the support plate (1), a blanking hopper (6) being mounted on the two support plates (1) through a mounting plate (601), and characterized in that: The device further comprises a slide plate (602) rotatably provided on the mounting plate (601), the slide plate (602) being obliquely provided below the material outlet of the drop hopper (6), and being used for guiding and buffering the material falling from the material outlet of the drop hopper (6) so as to reduce the vertical force of the falling material on the conveyor belt (3), thereby reducing the friction between the conveyor belt (3) and its bottom support.

2. The device for reducing friction at the bottom of a conveyor belt blanking port according to claim 1, characterized in that: A torsion spring (604) is provided on the shaft on which the slide plate (602) is rotatably mounted on the mounting plate (601). The two ends of the torsion spring (604) are respectively connected to the slide plate (602) and the mounting plate (601). Limiting rods (603) are provided on both sides of the slide plate (602). The limiting rods (603) are mounted on the inner wall of the mounting plate (601). The limiting rods (603) are used to limit the rotation angle of the slide plate (602).

3. The device for reducing friction at the bottom of a conveyor belt blanking port according to claim 2, characterized in that: Upper rollers (704) are arranged equidistantly between the two support plates (1). The upper rollers (704) are arranged between the passive roller (2) and the active roller (201), and the heights of the passive roller (2) and the active roller (201) are higher than the height of the upper rollers (704). The upper rollers (704) are used to provide support for the portion of the conveyor belt (3) that carries materials and to guide the conveyor belt (3) to run along a predetermined path.

4. The device for reducing friction at the bottom of a conveyor belt drop opening according to claim 3, characterized in that: Lower rollers (7) are slidably provided at the lower parts of the two support plates (1). The lower rollers (7) are provided below the conveyor belt (3) and are used to provide support for the unloaded portion of the conveyor belt (3) and maintain a certain tension.

5. The device for reducing friction at the bottom of a conveyor belt blanking port according to claim 4, characterized in that: The ends of the lower roller (7) passing through the support plate (1) are connected to a connecting plate (501). A cylinder (5) is installed on the outer wall of the support plate (1), and the movable end of the piston rod of the cylinder (5) is connected to the connecting plate (501).

6. The device for reducing friction at the bottom of a conveyor belt drop opening according to claim 5, characterized in that: The support plate (1) is provided with parallel vertical grooves, wherein a scraping roller (701) and a scraping plate (702) are respectively slidably connected in the vertical grooves. The scraping roller (701) and the scraping plate (702) pass through the end of the support plate (1) and are connected to the connecting plate (501). The scraping roller (701) contacts and cooperates with the conveyor belt (3). The scraping roller (701) and the scraping plate (702) constitute a scraping mechanism for scraping off the adhering material on the conveyor belt (3).

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