Tensioning mechanism of belt conveyor

Abstract

The utility model relates to the technical field of belt conveyors, and discloses a belt conveyor tensioning mechanism which comprises a conveyor body, supporting legs are fixedly connected to the bottom of the conveyor body, U-shaped grooves are formed in the front side and the rear side of the conveyor body, first rotating shafts are slidably connected to the interiors of the U-shaped grooves, and second rotating shafts are slidably connected to the interiors of the first rotating shafts. A first rolling shaft is rotatably connected to one end of the first rotating shaft, a connecting block is fixedly connected to one side of the first rotating shaft, connecting plates are hinged to the left side and the right side of the connecting block, fixing shafts are fixed to the front side and the rear side of the conveyor body, and rotating plates are rotatably connected to one ends of the fixing shafts; the top of one end of the rotating plate is hinged to the other end of the connecting plate, and arc-shaped sliding grooves are formed in the left side and the right side of the front side and the rear side of the conveyor body correspondingly. According to the belt tensioning device, tensioning adjustment can be carried out on the conveyor body, so that the service life of the belt is prolonged, meanwhile, the phenomenon that the belt slips can be avoided, and the conveying efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, specifically to the tensioning mechanism of a belt conveyor. Background Technology

[0002] Belt conveyors have advantages such as large conveying capacity, simple structure, convenient maintenance, and standardized components. They are widely used in mining, metallurgy, coal and other industries to transport loose materials or packaged goods. During the material conveying process, the belt may loosen due to prolonged use, eventually leading to belt slippage and affecting the subsequent operation of the belt conveyor. Utility Model Content

[0003] The purpose of this invention is to provide a tensioning mechanism for belt conveyors to solve the problems existing in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tensioning mechanism for a belt conveyor, comprising a conveyor body, a support leg fixedly connected to the bottom of the conveyor body, U-shaped grooves formed on both the front and rear sides of the conveyor body, a first rotating shaft slidably connected inside the U-shaped grooves, a first roller rotatably connected to one end of the first rotating shaft, a connecting block fixedly connected to one side of the first rotating shaft, connecting plates hinged to both the left and right sides of the connecting block, fixed shafts fixed on both the front and rear sides of the conveyor body, a rotating plate rotatably connected to one end of the fixed shaft, and a top of one end of the rotating plate... The other end of the connecting plate is hinged to the part. Arc-shaped grooves are provided on the left and right sides of the front and rear sides of the conveyor body. A second rotating shaft is slidably connected inside the arc-shaped groove. A second roller is rotatably connected to one end of the second rotating shaft. A support plate is fixedly connected to the inner side of the middle support leg. A screw is rotatably connected to the top of the support plate. The top end of the screw is rotatably connected to the bottom of the conveyor body. A sliding plate is threadedly connected to the surface of the screw. Movable rods are fixedly connected to both ends of the sliding plate. One end of the movable rod is fixedly connected to the bottom of the connecting block. A force-applying structure is provided on the top of the support plate.

[0005] Preferably, the force-applying structure includes a transmission rod, the two sides of which are rotatably connected to one side of the middle support leg, a turntable is fixedly connected to the front end of the transmission rod, a worm gear is fixedly connected to the surface of the transmission rod, a worm is fixedly connected to the surface of the screw, and the worm gear and the worm mesh with each other.

[0006] Preferably, both sides of the bottom of the conveyor body are fixedly connected with fixing rods, and the surface of the fixing rods is slidably connected to the inside of the sliding plate.

[0007] Preferably, the middle support leg has sliding grooves on both the front and rear sides, and the interior of the sliding grooves is slidably connected to the surface of the sliding plate.

[0008] Preferably, baffles are fixed at the front and rear sides of both sides of the top of the conveyor body. A pin is slidably connected inside the baffle. A limit plate is fixedly connected to one end of the pin. A pin is provided through the top of the baffle. The other end of the pin is used in conjunction with the inside of the pin.

[0009] Preferably, the bottom of the support leg is fixedly connected to a support foot, and an installation hole is provided inside one end of the support foot.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention, through the force-applying structure, can drive the screw to rotate, thereby moving the sliding plate and the movable rod, which in turn moves the connecting block and the first roller. This allows the first roller to stretch the belt. Simultaneously, as the connecting block applies force to the rotating plate through the connecting plate, it can also drive the second rotating shaft to slide inside the arc-shaped groove, and drive the second roller to compress the belt. This allows for tension adjustment of the conveyor body, thereby improving the service life of the belt and preventing belt slippage, further improving conveying efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0014] Figure 3 This is a schematic diagram of the left-side stereoscopic structure of this utility model;

[0015] Figure 4 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0016] Figure 5 This utility model Figure 2 A magnified schematic diagram of the local structure at point A;

[0017] Figure 6 This utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0018] In the diagram: 1. Conveyor body; 2. Support leg; 3. U-shaped trough; 4. First rotating shaft; 5. First roller; 6. Connecting block; 7. Connecting plate; 8. Rotating plate; 9. Fixed shaft; 10. Arc-shaped chute; 11. Support plate; 12. Screw; 13. Sliding plate; 14. Movable rod; 15. Force-applying structure; 151. Turntable; 152. Transmission rod; 153. Worm gear; 154. Worm; 16. Sliding chute; 17. Limiting plate; 18. Fixed rod; 19. Support foot; 20. Second rotating shaft; 21. Second roller; 22. Baffle; 23. Pin; 24. Insert pin. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-6 As shown, the tensioning mechanism of the belt conveyor includes a conveyor body 1. Support legs 2 are fixedly connected to the bottom of the conveyor body 1. U-shaped grooves 3 are provided on both the front and rear sides of the conveyor body 1. A first rotating shaft 4 is slidably connected inside the U-shaped grooves 3. A first roller 5 is rotatably connected to one end of the first rotating shaft 4. A connecting block 6 is fixedly connected to one side of the first rotating shaft 4. Connecting plates 7 are hinged to both the left and right sides of the connecting block 6. Fixed shafts 9 are fixed on both the front and rear sides of the conveyor body 1. A rotating plate 8 is rotatably connected to one end of the fixed shaft 9. The top of one end of the rotating plate 8 is hinged to the other end of the connecting plate 7. Arc-shaped grooves 10 are provided on the left and right sides of both the front and rear sides. A second rotating shaft 20 is slidably connected inside the arc-shaped grooves 10. A second roller 21 is rotatably connected to one end of the second rotating shaft 20. A support plate 11 is fixedly connected to the inner side of the middle support leg 2. A screw 12 is rotatably connected to the top of the support plate 11. The top end of the screw 12 is rotatably connected to the bottom of the conveyor body 1. A sliding plate 13 is threadedly connected to the surface of the screw 12. Movable rods 14 are fixedly connected to both ends of the sliding plate 13. One end of the movable rod 14 is fixedly connected to the bottom of the connecting block 6. A force-applying structure 15 is provided on the top of the support plate 11.

[0021] The force-applying structure 15 includes a transmission rod 152, with both sides of the transmission rod 152 rotatably connected to one side of the middle support leg 2. A turntable 151 is fixedly connected to the front end of the transmission rod 152, and a worm gear 153 is fixedly connected to the surface of the transmission rod 152. A worm 154 is fixedly connected to the surface of the screw 12. The worm gear 153 and the worm 154 mesh with each other. When the screw 12 is rotated, the force applied to the turntable 151 can drive the worm 154 to rotate, and drive the worm gear 153 to rotate, thus facilitating the rotation of the screw 12. Due to the meshing of the worm gear 153 and the worm 154, it not only facilitates the application of force to rotate the screw 12, but also plays a self-locking role.

[0022] Fixed rods 18 are fixedly connected to both sides of the bottom of the conveyor body 1. The surface of the fixed rods 18 is slidably connected to the inside of the sliding plate 13. By setting the fixed rods 18, the screw 12 can stably drive the sliding plate 13 to move up and down on the surface of the fixed rods 18 when it rotates.

[0023] The middle support leg 2 has sliding grooves 16 on both the front and rear sides. The inside of the sliding groove 16 is slidably connected to the surface of the sliding plate 13. The sliding plate 13 can be assisted in limiting its position by sliding the sliding plate 13 inside the sliding groove 16.

[0024] Baffles 22 are fixed on the front and rear sides of both sides of the top of the conveyor body 1. A pin 23 is slidably connected inside the baffle 22. One end of the pin 23 is fixedly connected to a limit plate 17. A pin 24 is provided through the top of the baffle 22. The other end of the pin 24 cooperates with the inside of the pin 23. The pin 23 can move inside the baffle 22, and the limit plate 17 can move back and forth through the cooperation of the pin 24 and the pin 23. This can restrict the objects on the conveyor and prevent the objects from running off-center.

[0025] The bottom of the support leg 2 is fixedly connected to the support foot 19. One end of the support foot 19 has an installation hole, which can improve the stability of the conveyor by fixing it to the ground.

[0026] It is worth noting that the technical features such as the conveyor body 1 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, control method and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.

[0027] Working principle: During use, before conveying items, the pin 23 can be moved inside the baffle 22 to drive the limiting plate 17 to move, thus facilitating the guidance and limiting of the conveyed items. When it is necessary to adjust the tension of the belt of the conveyor body 1, the turntable 151 can be rotated, which in turn drives the transmission rod 152 and the worm gear 154 to rotate, and at the same time drives the worm wheel 153 to rotate, which in turn drives the screw 12 to rotate, thereby driving the sliding plate 13 to move downward, and driving the movable rods 14 at both ends of it to move together, so that the connecting block 6 also moves along with it. During movement, the first rotating shaft 4 slides inside the U-shaped groove 3, and the first roller 5 stretches the belt downwards to adjust the tension of the conveyor body 1. During the movement of the connecting block 6, the connecting plate 7 applies force to the rotating plate 8, causing the rotating plate 8 to deflect at one end of the fixed shaft 9. As one end of the rotating plate 8 moves downwards, it drives the second rotating shaft 20 at the other end to slide inside the arc-shaped chute 10, and drives the second roller 21 to squeeze the belt. This increases the wrap angle on both sides of the conveyor body 1 and prevents the belt from slipping.

[0028] 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 tensioning mechanism for a belt conveyor, comprising a conveyor body (1), characterized in that: The bottom of the conveyor body (1) is fixedly connected to a support leg (2). U-shaped grooves (3) are provided on both the front and rear sides of the conveyor body (1). A first rotating shaft (4) is slidably connected inside the U-shaped groove (3). A first roller (5) is rotatably connected to one end of the first rotating shaft (4). A connecting block (6) is fixedly connected to one side of the first rotating shaft (4). Connecting plates (7) are hinged to both the left and right sides of the connecting block (6). A fixed shaft (9) is fixed on both the front and rear sides of the conveyor body (1). A rotating plate (8) is rotatably connected to one end of the fixed shaft (9). The top of one end of the rotating plate (8) is hinged to the other end of the connecting plate (7). The left and right sides of the front and rear sides of the conveyor body (1) are open... An arc-shaped chute (10) is provided, and a second rotating shaft (20) is slidably connected inside the arc-shaped chute (10). A second roller (21) is rotatably connected to one end of the second rotating shaft (20). A support plate (11) is fixedly connected to the inner side of the middle support leg (2). A screw (12) is rotatably connected to the top of the support plate (11). The top end of the screw (12) is rotatably connected to the bottom of the conveyor body (1). A sliding plate (13) is threadedly connected to the surface of the screw (12). Movable rods (14) are fixedly connected to both ends of the sliding plate (13). One end of the movable rod (14) is fixedly connected to the bottom of the connecting block (6). A force-applying structure (15) is provided on the top of the support plate (11).

2. The tensioning mechanism of the belt conveyor according to claim 1, characterized in that: The force-applying structure (15) includes a transmission rod (152), both sides of which are rotatably connected to one side of the middle support leg (2). A turntable (151) is fixedly connected to the front end of the transmission rod (152). A worm gear (153) is fixedly connected to the surface of the transmission rod (152). A worm (154) is fixedly connected to the surface of the screw (12). The worm gear (153) and the worm (154) mesh with each other.

3. The tensioning mechanism of the belt conveyor according to claim 1, characterized in that: Both sides of the bottom of the conveyor body (1) are fixedly connected to fixed rods (18), and the surface of the fixed rods (18) is slidably connected to the inside of the sliding plate (13).

4. The tensioning mechanism of the belt conveyor according to claim 1, characterized in that: The middle support leg (2) has sliding grooves (16) on both the front and rear sides, and the interior of the sliding grooves (16) is slidably connected to the surface of the sliding plate (13).

5. The tensioning mechanism of the belt conveyor according to claim 1, characterized in that: The conveyor body (1) has baffles (22) fixed on both sides of the top and the front and back. A pin (23) is slidably connected inside the baffle (22). One end of the pin (23) is fixedly connected to a limit plate (17). A pin (24) is provided through the top of the baffle (22). The other end of the pin (24) is used in conjunction with the inside of the pin (23).

6. The tensioning mechanism of the belt conveyor according to claim 1, characterized in that: The bottom of the support leg (2) is fixedly connected to a support foot (19), and an installation hole is provided inside one end of the support foot (19).

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