Adhesive tape tensioning device and belt conveyor

Abstract

The invention relates to the technical field of belt conveyors. An adhesive tape tensioning device comprises a tensioning rope, a tensioning wheel, a fixed rope seat and a heavy hammer mechanism, one end of the tensioning rope is fixedly connected with the axis of the tensioning wheel so as to pull the tensioning wheel in the horizontal direction, the other end of the tensioning rope is connected with the fixed rope seat so as to fix the tensioning rope, the middle section of the tensioning rope is connected with the heavy hammer mechanism in a sleeved mode so as to tension the tensioning rope, and the heavy hammer mechanism is connected with the tensioning wheel in a sleeved mode. The heavy hammer mechanism comprises a heavy hammer block, a guide rod, a hinge frame, a traction wheel and a lower limiting ring, the heavy hammer block is connected with the upper end of the guide rod in a sleeved mode, the lower end of the guide rod is connected with the hinge frame in a sleeved mode so that the heavy hammer block can press the hinge frame to be compressed downwards, the traction wheel is arranged on the hinge frame, when the hinge frame is compressed, the traction wheel is horizontally stressed, and the traction wheel is connected with the tensioning rope in a sleeved mode. The lower limiting ring is arranged on the guide rod and located below the heavy hammer block so as to limit the compression stroke of the hinge frame.

Description

Technical Field

[0001] The invention relates to the technical field of belt conveyors, and in particular to a belt tensioning device and a belt conveyor. Background Art

[0002] The belt tensioning device is used for belt conveyors. The conveyor belt of the belt conveyor is a belt. During long-term use, the belt will become loose due to the downward pressure of the material and the tension of the drive wheel. Setting a tensioning device can keep the belt in a tensioned state. There are generally the following schemes for existing belt tensioning, namely, tail screw tensioning, hydraulic tensioning, vertical weight tensioning, winch tensioning, and tail heavy-duty vehicle tensioning. Among them, tail screw tensioning is only suitable for belt conveyors with a length of no more than 80 meters and smaller specifications. Hydraulic tensioning is an electromechanical hydraulic device and is difficult to maintain. The use of vertical weight tensioning must have a certain installation height space and occupies a large space. Winch tensioning is an electromechanical device with a slow real-time response speed. Tail heavy-duty vehicle tensioning can only be used for belt conveyors with large inclination angles. Summary of the invention

[0003] In view of this, it is necessary to provide a belt tensioning device and a belt conveyor, which are suitable for underground operations with limited height space, and are convenient for maintenance and have fast real-time response speed.

[0004] The camshaft is an axially-coupled device for camming the tensioning wheel and the camshaft is actuated by a lever, and the lever is connected to the camshaft to move the tensioning wheel in a horizontal direction. The lever is actuated by a lever, and the camshaft is actuated by a lever, and the lever is moved in a horizontal direction.

[0005] In the above-mentioned tape tensioning device, preferably, the tensioning rope is a steel wire rope.

[0006] In the above-mentioned weight mechanism, preferably, the hinge frame includes a movable track, a fixed track, a hinged rod, and a walking wheel. The movable track is arranged in parallel with the fixed track, the movable track is located above the fixed track, the movable track and the fixed track are connected with the guide rod sleeve, the weight block is arranged on the movable track, the hinged rod and the walking wheel are located between the movable track and the fixed track, the horizontal sides of the movable track and the fixed track are respectively rotatably connected to a hinged rod, the hinged rod is connected to the walking wheel, the walking wheel is arranged on the movable track or the fixed track, the movable track can compress the hinged rod and drive the walking wheel to move along the movable track and the fixed track, and the traction wheel is arranged on the hinged rod, so that the hinged rod drives the traction wheel to move horizontally.

[0007] In the above-mentioned tape tensioning device, the tape tensioning device also includes a weight box, the weight block is located in the weight box, and the weight box presses the hinge frame to compress.

[0008] In the above-mentioned belt tensioning device, preferably, the belt tensioning device also includes a redirecting rope wheel, the lower end of the redirecting rope wheel is fixedly connected to the ground, and the upper end of the redirecting rope wheel is connected to the tensioning rope sleeve.

[0009] In the above-mentioned tape tensioning device, preferably, the weight mechanism also includes an upper limit ring to limit the upward movement of the hinge.

[0010] A belt conveyor comprises the above-mentioned belt tensioning device, and the belt of the belt conveyor is connected with a tensioning wheel.

[0011] Beneficial effect: The tape tensioning device of the present invention utilizes the gravity of the weight block to compress the hinge frame, thereby driving the pulling wheel to be horizontally forceful so as to tighten the tensioning rope and further tension the tensioning wheel. The gravity is adjusted by changing the number of weight blocks, thereby changing the tensioning force or the tensioning stroke. Since the tensioning force is determined by the gravity of the weight, the tensioning force of the tensioning wheel can be kept constant. As is known to all, the tape will be continuously stretched during long-term use, resulting in a decrease in the tensioning force and loosening of the tape. The tensioning force of the present invention is determined by gravity. As the tape is stretched, the pulling wheel also moves horizontally under the action of the weight block, and the tensioning force always remains constant, thereby reducing the number of maintenance times and being able to respond to changes in real time. Similarly, the conversion of gravity into horizontal tensioning force does not require a large height space. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the tape tensioning device of the present invention in a normal state.

[0013] Figure 2 It is a partial structural schematic diagram of the normal state of the tape tensioning device of the present invention.

[0014] Figure 3 It is a schematic diagram of the local structure of the tape tensioning device of the present invention in a compressed state.

[0015] Figure 4 It is a side view of the tape tensioning device of the present invention.

[0016] In the figure: a tape tensioning device 10, a tensioning rope 20, a tensioning wheel 30, a fixed rope seat 40, a weight mechanism 50, a weight block 501, a weight block 5011, a connecting rod 5012, a guide rod 502, a hinge frame 503, a movable track 5031, a fixed track 5032, a hinged rod 5033, a walking wheel 5034, a pulling wheel 504, a lower limit ring 505, an upper limit ring 506, a weight box 60, and a redirecting rope pulley 70. DETAILED DESCRIPTION

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Please see Figures 1 to 4 A tape tensioning device 10 includes a tensioning rope 20, a tensioning wheel 30, a fixed rope seat 40, and a weight mechanism 50. One end of the tensioning rope 20 is fixedly connected to the axis of the tensioning wheel 30 to pull the tensioning wheel 30 in the horizontal direction. The other end of the tensioning rope 20 is connected to the fixed rope seat 40 to fix the tensioning rope 20. The middle section of the tensioning rope 20 is sleeve-connected with the weight mechanism 50 to tighten the tensioning rope 20. The weight mechanism 50 includes a weight block 501, a guide rod 502, a hinge frame 503, a pulling wheel 504, and a lower limit ring 505. The weight block 501 is sleeved and connected with the upper end of the guide rod 502, and the lower end of the guide rod 502 is sleeved and connected with the hinge 503, so that the weight block 501 compresses the hinge 503 downward, and the pulling wheel 504 is arranged on the hinge 503. When the hinge 503 is compressed, the pulling wheel 504 is subjected to horizontal force, and the pulling wheel 504 is sleeved and connected with the tensioning rope 20 to tension the tensioning rope 20. The lower limit ring 505 is arranged on the guide rod 502, and the lower limit ring 505 is located below the weight block 501 to limit the compression stroke of the hinge 503.

[0019] The tensioning wheel 30 of the present invention is sleeved on the belt of the conveyor. By pulling the tension rope 20, the tensioning wheel 30 is subjected to horizontal force, so that the belt is always in a tensioned state. The tensioning wheel 30, the pulling wheel 504, and the fixed rope seat 40 constitute a serpentine path of the tensioning rope 20, and the horizontal force of the pulling wheel 504 drives the tensioning rope 20 to pull the tensioning wheel 30. The horizontal force of the pulling wheel 504 comes from the compression of the hinge 503. When the hinge 503 is compressed, a horizontal force is generated to act on the pulling wheel 504. The compression of the hinge 503 is achieved by the gravity of the weight block 501 itself, that is, the weight squeezes the hinge 503. The lower limit ring 505 is the lowest position of the squeezing stroke. When the conveyor belt breaks accidentally, the lower limit ring 505 can prevent the free fall of the weight from damaging the hinge 503. At the same time, it is also convenient for maintenance personnel to evaluate the status of the belt. When the adhesive tape is deformed to a certain extent, its tensile strength has changed and it cannot be used any more. If the weight falls to the position of the lower limit ring 505, it means that the deformation of the adhesive tape is very large and it is no longer suitable for conveying materials, and the adhesive tape needs to be replaced.

[0020] The tension rope 20 needs to have sufficient tensile strength. In a preferred embodiment, the tension rope 20 is a steel wire rope.

[0021] In a preferred embodiment, the hinge frame 503 includes a movable track 5031, a fixed track 5032, a hinge rod 5033, and a running wheel 5034. The movable track 5031 is arranged in parallel with the fixed track 5032. The movable track 5031 is located above the fixed track 5032. The movable track 5031 and the fixed track 5032 are sleeved and connected with the guide rod 502. The heavy hammer block 501 is arranged on the movable track 5031. The hinge rod 5033 and the running wheel 5034 are located between the movable track 5031 and the fixed track 5032. 2, the horizontal side of the movable track 5031 and the fixed track 5032 are respectively rotatably connected with a hinge rod 5033, the hinge rod 5033 is connected with the walking wheel 5034, the walking wheel 5034 is arranged on the movable track 5031 or the fixed track 5032, the movable track 5031 can compress the hinge rod 5033 and drive the walking wheel 5034 to move along the movable track 5031 and the fixed track 5032, and the traction wheel 504 is arranged on the hinge rod 5033, so that the hinge rod 5033 drives the traction wheel 504 to move horizontally.

[0022] The movable track 5031 generates a downward force under the pressure of the weight, driving the hinged rod 5033 to rotate, and the walking wheel 5034 can only move along the track under the action of the fixed track 5032. The hinged rod 5033 drives the pulling wheel 504 to move horizontally during the rotation process, thereby tensioning the tension rope 20.

[0023] Since the hinge frame 503 is long, one guide rod 502 is not enough to maintain the balance of the hinge frame 503, so a guide rod 502 is respectively provided on both sides of the hinge frame 503. A weight block 501 is respectively sleeved on the guide rod 502.

[0024] Underground, the working environment of the tensioning device is relatively harsh, with a lot of dust. In order to protect the weight and facilitate subsequent maintenance, in a preferred embodiment, the belt tensioning device 10 also includes a weight box 60, and the weight block 501 is located in the weight box 60, and the weight box 60 compresses the hinge 503.

[0025] Although the horizontal space underground is large, the length of the tensioning device will also affect the operation. Therefore, in a preferred embodiment, the belt tensioning device 10 further includes a redirecting rope wheel 70, the lower end of which is fixedly connected to the ground, and the upper end of which is sleeved and connected to the tensioning rope 20. The redirecting rope wheel 70 can adjust the tensioning stroke by changing the installation position or the number of installations.

[0026] In a preferred embodiment, the weight mechanism 50 further includes an upper limit ring 506 to limit the upward movement of the hinge 503 .

[0027] The present invention also provides a belt conveyor, comprising the above-mentioned belt tensioning device 10, wherein the belt of the belt conveyor is connected to the tensioning wheel 30. In a preferred embodiment, a tensioning wheel 30 seat is provided below the tensioning wheel 30, and the tensioning rope 20 is fixed on the tensioning wheel 30 seat.

[0028] In a preferred embodiment, the fixed rope seat 40 and the redirecting rope wheel 70 are located on the side close to the tail of the belt conveyor, and the pulling wheel 504 is arranged on the hinge rod 5033 at the end.

[0029] What is disclosed above is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A tape tensioning device, characterized in that: The cam mechanism comprises a tensioning rope, a tensioning wheel, a fixed rope seat and a weight mechanism, wherein one end of the tensioning rope is fixedly connected to the axis of the tensioning wheel to pull the tensioning wheel in the horizontal direction, and the other end of the tensioning rope is connected to the fixed rope seat to fix the tensioning rope. The middle section of the tensioning rope is sleeved and connected to the weight mechanism to tension the tensioning rope. The weight mechanism comprises a weight block, a guide rod, a hinge frame, a pulling wheel and a lower limit ring. The weight block is sleeved and connected to the upper end of the guide rod, and the lower end of the guide rod is sleeved and connected to the hinge frame so that the weight block presses the hinge frame downward and compresses it. The pulling wheel is arranged on the hinge frame. When the hinge frame is compressed, the pulling wheel is subjected to horizontal force, and the pulling wheel is sleeved and connected to the tensioning rope to pull the tensioning rope. The lower limit ring is arranged on the guide rod, and the lower limit ring is located below the weight block to limit the compression stroke of the hinge frame.

2. The tape tensioning device according to claim 1, characterized in that: The tensioning rope is a steel wire rope.

3. The tape tensioning device according to claim 1, characterized in that: The hinge frame includes a movable track, a fixed track, a hinge rod, and a walking wheel. The movable track is arranged in parallel with the fixed track, the movable track is located above the fixed track, the movable track and the fixed track are connected with the guide rod sleeve, the heavy hammer block is arranged on the movable track, the hinge rod and the walking wheel are located between the movable track and the fixed track, the horizontal side of the movable track and the fixed track are respectively rotatably connected to a hinge rod, the hinge rod is connected to the walking wheel, the walking wheel is arranged on the movable track or the fixed track, the movable track can compress the hinge rod and drive the walking wheel to move along the movable track and the fixed track, and the traction wheel is arranged on the hinge rod, so that the hinge rod drives the traction wheel to move horizontally.

4. The tape tensioning device according to claim 1, characterized in that: The adhesive tape tensioning device also includes a weight box, in which the weight block is located, and the weight box presses the hinge frame to compress it.

5. The tape tensioning device according to claim 1, characterized in that: The belt tensioning device also includes a redirecting rope wheel, the lower end of which is fixedly connected to the ground, and the upper end of which is connected to the tensioning rope sleeve.

6. The tape tensioning device according to claim 1, characterized in that: The weight mechanism also includes an upper limit ring to limit the upward movement of the hinge.

7. A belt conveyor, characterized in that: The invention comprises the belt tensioning device according to any one of claims 1 to 6, wherein the belt of the belt conveyor is connected to the tensioning wheel.

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