Tail worm and gear tensioning device

Abstract

The utility model provides a tail worm and gear tensioning device, which relates to the technical field of belt conveyors, and comprises a rack, a first roller and a second roller, the left ends of the two sides of the rack are provided with guide rail grooves, the inner sides of the guide rail grooves are provided with slide blocks in a sliding manner, the first roller is rotatably connected between the two groups of slide blocks, and the second roller is rotatably connected between the two groups of slide blocks. The second roller is rotationally arranged at the right end of the interior of the rack, and a conveying part is wound on the first roller and the second roller; a driving block is arranged below the left end of the rack; the first roller and the second roller are connected with the conveying part for conveying, when tensioning is needed, a user only needs to rotate a rotating handle piece to drive a first rotating shaft to rotate, the first rotating shaft drives a second rotating shaft to rotate in a linkage mode, two worm wheels are driven by a worm to rotate, two winding wheels rotate, a rope is pulled from the two sides, and tensioning is achieved. Therefore, the sliding block is pulled to move along the guide rail groove, the first roller is pulled to tension the conveying part, friction force is improved, normal transportation is guaranteed, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, in particular to a tail worm gear tensioning device. Background Art

[0002] Belt conveyor, also known as rubber belt conveyor or belt conveyor, is a material conveying equipment widely used in household appliances, electronics, electrical appliances, machinery, tobacco, injection molding, post and telecommunications, printing, food and other industries. It is driven by friction and transports materials from the feeding point to the unloading point in a continuous motion. Belt conveyor has the advantages of strong conveying capacity, long conveying distance, simple structure and easy maintenance, and can easily implement programmed control and automated operation. It is an economical logistics conveying equipment that is indispensable for the rhythmic assembly line.

[0003] The belt conveyor is mainly composed of a frame, a conveyor belt, rollers, a drum and a transmission device. The drum is driven to rotate by the transmission device to drive the conveyor belt to run. The conveyor belt is generally a soft belt body. After long-term use, the belt body is easily stretched and deformed, reducing the close friction with the rollers, thereby causing slippage between the conductor and the rollers, affecting normal transportation. In the existing technology, the belt body is generally replaced, or the rollers are removed and reinstalled. The above methods all require disassembly of the frame, which is very inconvenient. Therefore, the utility model proposes a tail worm gear tensioning device to solve the problems existing in the existing technology. Utility Model Content

[0004] In view of the above problems, the present invention proposes a tail worm gear tensioning device, which is easy and quick to operate.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a tail worm gear tensioning device, comprising a frame, a first roller and a second roller, wherein the left ends of both sides of the frame are provided with guide rail grooves, and sliders are slidably provided inside the guide rail grooves, the first roller is rotatably connected between the two groups of sliders, the second roller is rotatably provided at the right end inside the frame, and a conveying portion is wound around the first roller and the second roller;

[0006] A driving block is provided below the left end of the frame, and winding wheels are rotatably provided on both sides of the top of the driving block, and a rope is wound around the winding wheel, and one end of the rope on both sides is respectively connected to the sliders on both sides, and inner cavities are provided on both sides of the driving block, and a first rotating shaft and a second rotating shaft are respectively rotatably provided inside the two groups of inner cavities, and the first rotating shaft and the second rotating shaft rotate in conjunction with each other, and worms are provided on the first rotating shaft and the second rotating shaft, and the lower ends of the two groups of winding wheels are provided with worm wheels respectively adapted to the two groups of worms, and one end of the first rotating shaft is connected to the rotating handle.

[0007] Further improvements are: a linkage cavity is provided at the middle position inside the driving block, one end of the first rotating shaft and the second rotating shaft extend into the linkage cavity and are connected to a first bevel gear, and the top rotation inside the linkage cavity is provided with a second bevel gear adapted to the two groups of the first bevel gears.

[0008] A further improvement is that the first rotating shaft and the second rotating shaft rotate in opposite directions, and the ropes on both sides are wound around the winding wheel from the outer side of the winding wheel.

[0009] A further improvement is that the handle assembly includes a turning handle and a turning stem, and the turning stem is rotatably connected to one end outside the turning handle.

[0010] A further improvement is that a connecting block is provided on one side of the first rotating shaft, and a polygonal hole is provided inside the connecting block, and a polygonal plug rod adapted to the polygonal hole is provided at one end of the inner side of the turning handle.

[0011] A further improvement is that the conveying portion includes a conveyor belt and side ribs, the conveyor belt is wound around a first roller and a second roller, and the side ribs are arranged on both sides of the conveyor belt.

[0012] A further improvement is that: the slider is provided with a hook, and one end of the rope is connected to the hook.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model connects the conveying part through the first roller and the second roller for conveying. When tensioning is required, it is only necessary to turn the handle to drive the first rotating shaft to rotate, and the first rotating shaft drives the second rotating shaft to rotate in conjunction. The two sets of worm gears are driven to rotate by the worm, so that the two sets of tensioning wheels rotate, and the ropes are pulled from both sides, thereby pulling the slider to move along the guide rail groove, pulling the first roller to tighten the conveying part, thereby increasing friction, ensuring normal transportation, and convenient and quick operation.

[0015] 2. When the utility model is operated, the handle is rotated to drive the handle to rotate, so that the polygonal rod rotates, and the polygonal hole drives the connecting block to rotate, so that the first rotating shaft rotates, thereby driving the tension. When not in use, the handle can be pulled out of the polygonal hole to prevent random operation by outsiders. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main view of the utility model;

[0017] Figure 2 This is a schematic diagram of the interior of the drive block of the present utility model;

[0018] Figure 3 It is a schematic diagram of the handle of the present utility model.

[0019] Among them: 1. Frame; 2. First roller; 3. Second roller; 4. Guide rail groove; 5. Slider; 6. Drive block; 7. Take-up pulley; 8. Rope; 9. Inner cavity; 10. First rotating shaft; 11. Second rotating shaft; 12. Worm; 13. Worm gear; 14. Linkage cavity; 15. First bevel gear; 16. Second bevel gear; 17. Turning handle; 18. Turning handle; 19. Connecting block; 20. Polygonal hole; 21. Polygonal plug rod; 22. Conveyor belt; 23. Side guard; 24. Hook. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0021] Example 1

[0022] according to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment proposes a tail worm gear tensioning device, comprising a frame 1, a first roller 2, and a second roller 3. The left ends of both sides of the frame 1 are provided with guide rail grooves 4, and sliders 5 are slidably provided inside the guide rail grooves 4. The first roller 2 is rotatably connected between the two groups of sliders 5, and the second roller 3 is rotatably provided at the right end inside the frame 1. A conveying portion is wound around the first roller 2 and the second roller 3.

[0023] A driving block 6 is provided below the left end of the frame 1, and winding wheels 7 are rotatably provided on both sides of the top of the driving block 6. A rope 8 is wound around the winding wheel 7, and one end of the rope 8 on both sides is respectively connected to the sliders 5 on both sides. Inner cavities 9 are provided on both sides of the driving block 6, and the first rotating shaft 10 and the second rotating shaft 11 are respectively rotatably provided inside the two groups of inner cavities 9. The first rotating shaft 10 and the second rotating shaft 11 rotate in conjunction with each other, and a worm 12 is provided on the first rotating shaft 10 and the second rotating shaft 11. The lower ends of the two groups of winding wheels 7 are provided with worm wheels 13 respectively adapted to the two groups of worms 12, and one end of the first rotating shaft 10 is connected to the rotating handle. During use, the conveying part is connected to the first roller 2 and the second roller 3 for conveying. When tightening is required, it is only necessary to turn the handle to drive the first rotating shaft 10 to rotate, and the first rotating shaft 10 drives the second rotating shaft 11 to rotate in conjunction, and the two sets of worm wheels 13 are driven to rotate through the worm 12, so that the two sets of tensioning wheels 7 rotate, and the ropes 8 are pulled from both sides, thereby pulling the slider 5 to move along the guide rail groove 4, pulling the first roller 2 to tighten the conveying part, thereby increasing friction and ensuring normal transportation. The operation is convenient and quick.

[0024] A linkage chamber 14 is located in the middle of the drive block 6. One end of each of the first and second rotating shafts 10, 11 extends into the linkage chamber 14 and is connected to a first bevel gear 15. A second bevel gear 16 is rotatably mounted at the top of the linkage chamber 14, mateable with the two sets of first bevel gears 15. The first and second rotating shafts 10, 11 rotate in opposite directions, allowing the ropes 8 on both sides to wind around the take-up wheel 7 from their outer positions. During operation, since the ropes 8 on both sides wind around the take-up wheel 7 from their outer positions, the rotation of the first rotating shaft 10 drives one set of first bevel gears 15, which in turn rotates the second bevel gear 16, driving the other set of first bevel gears 15 in the opposite direction, causing the second rotating shaft 11 to rotate in the opposite direction. Driven by the worm 12 and worm wheel 13, the two sets of take-up wheels 7 rotate synchronously in opposite directions, tightening the ropes 8 on both sides. The worm 12 and worm wheel 13 provide self-locking.

[0025] The handle assembly includes a turning handle 17 and a turning stem 18, with the turning stem 18 rotatably connected to one end of the outer side of the turning handle 17. A connecting block 19 is provided on one side of the first rotating shaft 10, and a polygonal hole 20 is defined within the connecting block 19. A polygonal insert 21 is provided on one end of the inner side of the turning handle 17, which fits into the polygonal hole 20. During operation, turning the turning handle 18 rotates the turning handle 17, causing the polygonal insert 21 to rotate. This, in conjunction with the polygonal hole 20, rotates the connecting block 19, causing the first rotating shaft 10 to rotate, thereby driving the tension. When not in use, the handle assembly can be removed from the polygonal hole 20 to prevent unauthorized operation.

[0026] Example 2

[0027] according to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment proposes a tail worm gear tensioning device, comprising a frame 1, a first roller 2, and a second roller 3. The left ends of both sides of the frame 1 are provided with guide rail grooves 4, and sliders 5 are slidably provided inside the guide rail grooves 4. The first roller 2 is rotatably connected between the two groups of sliders 5, and the second roller 3 is rotatably provided at the right end inside the frame 1. A conveying portion is wound around the first roller 2 and the second roller 3.

[0028] A driving block 6 is provided below the left end of the frame 1, and winding wheels 7 are rotatably provided on both sides of the top of the driving block 6. A rope 8 is wound around the winding wheel 7, and one end of the rope 8 on both sides is respectively connected to the sliders 5 on both sides. Inner cavities 9 are provided on both sides of the driving block 6, and the first rotating shaft 10 and the second rotating shaft 11 are respectively rotatably provided inside the two groups of inner cavities 9. The first rotating shaft 10 and the second rotating shaft 11 rotate in conjunction with each other, and a worm 12 is provided on the first rotating shaft 10 and the second rotating shaft 11. The lower ends of the two groups of winding wheels 7 are provided with worm wheels 13 respectively adapted to the two groups of worms 12, and one end of the first rotating shaft 10 is connected to the rotating handle. During use, the conveying part is connected to the first roller 2 and the second roller 3 for conveying. When tightening is required, it is only necessary to turn the handle to drive the first rotating shaft 10 to rotate, and the first rotating shaft 10 drives the second rotating shaft 11 to rotate in conjunction, and the two sets of worm wheels 13 are driven to rotate through the worm 12, so that the two sets of tensioning wheels 7 rotate, and the ropes 8 are pulled from both sides, thereby pulling the slider 5 to move along the guide rail groove 4, pulling the first roller 2 to tighten the conveying part, thereby increasing friction and ensuring normal transportation. The operation is convenient and quick.

[0029] The conveying section includes a conveyor belt 22 and sidewalls 23. The conveyor belt 22 is wound around the first roller 2 and the second roller 3. The sidewalls 23 are provided on both sides of the conveyor belt 22. When in use, the motor drives the second roller 3 to rotate, driving the conveyor belt 22 to run between the first roller 2 and the second roller 3. The sidewalls 23 block the transported materials to prevent them from falling.

[0030] The slider 5 is provided with a hook 24, and one end of the rope 8 is connected to the hook 24. When in use, one end of the rope 8 is connected to the hook 24, and the handle is turned to rotate the first rotating shaft 10, which in turn drives the second rotating shaft 11 to rotate in conjunction with the first rotating shaft 10. The worm 12 drives the two sets of worm wheels 13 to rotate, causing the two sets of tensioning wheels 7 to rotate, pulling the rope 8 from both sides, thereby pulling the slider 5 to move along the guide groove 4, pulling the first roller 2 to tighten the conveying part, increasing friction and ensuring normal transportation.

[0031] The tail worm gear tensioning device is connected to the conveying part through the first roller 2 and the second roller 3 for conveying. When tightening is required, it is only necessary to turn the handle to drive the first rotating shaft 10 to rotate, and the first rotating shaft 10 drives the second rotating shaft 11 to rotate in conjunction, and the two sets of worm wheels 13 are driven to rotate by the worm 12, so that the two sets of tightening wheels 7 rotate, and the ropes 8 are pulled from both sides, thereby pulling the slider 5 to move along the guide groove 4, pulling the first roller 2 to tighten the conveying part, increasing the friction force, ensuring normal transportation, and convenient and fast operation. At the same time, during operation, by turning the handle 18 to drive the handle 17 to rotate, the polygonal plug 21 rotates, and the polygonal hole 20 drives the connecting block 19 to rotate, so that the first rotating shaft 10 rotates, thereby driving the tightening. When not in use, the handle can be pulled out of the polygonal hole 20 to prevent unauthorized operation by strangers.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A tail worm gear tensioning device, comprising a frame (1), a first roller (2) and a second roller (3), characterized in that: The left ends of both sides of the frame (1) are provided with guide rail grooves (4), and sliders (5) are slidably provided inside the guide rail grooves (4). The first roller (2) is rotatably connected between the two groups of sliders (5), and the second roller (3) is rotatably provided at the right end inside the frame (1). A conveying portion is provided around the first roller (2) and the second roller (3); A driving block (6) is provided below the left end of the frame (1), and winding wheels (7) are rotatably provided on both sides of the top of the driving block (6), and a rope (8) is wound around the winding wheel (7), and one end of the rope (8) on both sides is respectively connected to the sliders (5) on both sides, and inner cavities (9) are provided on both sides of the driving block (6), and a first rotating shaft (10) and a second rotating shaft (11) are respectively rotatably provided inside the two groups of inner cavities (9), the first rotating shaft (10) and the second rotating shaft (11) rotate in conjunction with each other, and a worm (12) is provided on the first rotating shaft (10) and the second rotating shaft (11), and the lower ends of the two groups of winding wheels (7) are provided with worm wheels (13) respectively adapted to the two groups of worms (12), and one end of the first rotating shaft (10) is connected to the handle.

2. The tail worm gear tensioning device according to claim 1, characterized in that: A linkage chamber (14) is provided at a middle position inside the driving block (6), one end of each of the first rotating shaft (10) and the second rotating shaft (11) extends into the linkage chamber (14) and is connected to a first bevel gear (15), and a second bevel gear (16) adapted to the two sets of the first bevel gears (15) is provided on the top of the linkage chamber (14).

3. The tail worm gear tensioning device according to claim 2, characterized in that: The first rotating shaft (10) and the second rotating shaft (11) rotate in opposite directions, and the ropes (8) on both sides are wound around the tightening wheel (7) from positions outside the tightening wheel (7).

4. The tail worm gear tensioning device according to claim 1, characterized in that: The turning handle component comprises a turning handle (17) and a turning handle (18), and the turning handle (18) is rotatably connected to one end outside the turning handle (17).

5. The tail worm gear tensioning device according to claim 4, characterized in that: A connecting block (19) is provided on one side of the first rotating shaft (10), and a polygonal hole (20) is provided inside the connecting block (19). A polygonal inserting rod (21) adapted to the polygonal hole (20) is provided at one end of the inner side of the turning handle (17).

6. The tail worm gear tensioning device according to claim 1, characterized in that: The conveying part comprises a conveying belt (22) and a rib (23), wherein the conveying belt (22) is wound around a first roller (2) and a second roller (3), and the rib (23) is arranged on both sides of the conveying belt (22).

7. The tail worm gear tensioning device according to claim 1, characterized in that: The slider (5) is provided with a hook (24), and one end of the rope (8) is connected to the hook (24).

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