Tensioning force adjusting structure for conveying belt

Abstract

The utility model discloses a tension adjusting structure for a conveying belt, which comprises a rotating belt wheel, a belt, an adjusting belt wheel and an adjusting frame, the adjusting frame is provided with a vertical opening, a transverse opening and a transmission opening, a vertical screw rod and a transverse screw rod are respectively arranged in the vertical opening and the transverse opening, an adjusting motor connected with the vertical screw rod is arranged in the transmission opening, and the transverse screw rod is connected with the rotating belt wheel. The transverse screw rod is connected with an adjusting motor through a transmission mechanism, the vertical screw rod and the transverse screw rod are both sleeved with movable frames in a threaded mode, and the belt wheel and the adjusting belt wheel are both rotationally connected with the movable frames. The tensioning device can effectively adjust the tensioning force of the conveying belt. When the length of the belt is not changed but the distance between the two rotating belt wheels needs to be adjusted, the adjusting motor is started to drive the vertical screw rod and the transverse screw rod to rotate, so that the movable frame moves, the belt is ensured to be in a tight state, and the working stability and the transmission efficiency of the conveying belt are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a tension adjusting structure for a conveying belt. Background Art

[0002] In the grand scene of modern industrial production, the conveying belt, as an extremely common and indispensable material transmission device, is widely used in various fields and production links. It is like an indefatigable "transport artery", continuously and efficiently transporting various raw materials, semi-finished products and finished products between different production stations in an orderly manner. In numerous factory workshops, whether it is large-scale heavy manufacturing or delicate light industry, the conveying belt plays a crucial role in its unique way and becomes one of the key elements to ensure the smooth operation of the industrial production process.

[0003] When the distance between two belt pulleys is adjusted while the belt length remains unchanged, the prior art cannot effectively ensure that the belt is in a taut state. This easily causes the belt to slip during operation, affecting the conveying efficiency. For example, in some logistics conveying scenarios, belt slipping will lead to cargo accumulation and transportation delays. To address this problem, a tension adjusting structure for a conveying belt is proposed herein. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a tension adjusting structure for a conveying belt is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tension adjusting structure for a conveying belt, including a rotating pulley, a belt, an adjusting pulley and an adjusting frame. The adjusting frame is provided with a vertical opening, a horizontal opening and a transmission opening. A vertical screw and a horizontal screw are respectively arranged in the vertical opening and the horizontal opening. An adjusting motor connected to the vertical screw is arranged in the transmission opening. The horizontal screw is connected to the adjusting motor through a transmission mechanism. Movable frames are thread sleeved on both the vertical screw and the horizontal screw. The rotating pulley and the adjusting pulley are both rotatably connected to the movable frames. An installation plate is arranged on the adjusting frame through an installation channel. A wiping cloth is arranged on the surface of the installation plate in contact with the belt. An extrusion groove is arranged on the installation plate. A positioning block is arranged in the extrusion groove through an extrusion mechanism. A positioning hole is arranged on the adjusting frame.

[0007] Preferably, the transmission mechanism includes a driving gear installed on the output shaft of the adjusting motor, and a transmission gear meshing with the driving gear is installed on the horizontal screw.

[0008] Preferably, the extrusion mechanism includes a spring arranged in the extrusion groove, and both ends of the spring are elastically connected to the outer wall of the positioning block and the inner wall of the extrusion groove respectively.

[0009] Preferably, limiting rods are provided inside both the vertical opening and the horizontal opening, and the limiting rods slidably penetrate through the movable frame.

[0010] Preferably, a device passage is provided on one of the movable frames, and a rotating motor connected to the rotating pulley is provided inside the device passage.

[0011] Preferably, the installation passage and the vertical cross-sectional view of the installation plate are both in a T shape, and the wiping cloth is connected to the installation plate through a magic tape.

[0012] Advantages of the utility model:

[0013] 1. It can effectively adjust the tension of the conveyor belt. When the length of the belt remains unchanged but the distance between the two rotating pulleys needs to be adjusted, start the adjustment motor, which can drive the vertical screw rod and the horizontal screw rod to rotate, so that the movable frame moves, thereby ensuring that the belt is in a taut state, improving the working stability and transmission efficiency of the conveyor belt.

[0014] 2. When the belt rotates following the rotating pulley, the wiping cloth at the bottom of the installation plate can wipe and clean the belt, preventing particulate impurities from adhering to the belt, reducing the damage of the belt caused by the extrusion of impurities, and extending the service life of the belt. Description of the drawings

[0015] Figure 1 is a schematic structural diagram of a tension adjustment structure for a conveyor belt proposed by the utility model;

[0016] Figure 2 is Figure 1 an enlarged schematic view of the structure at A in;

[0017] Figure 3 is a schematic bottom view of components such as the adjustment frame;

[0018] Figure 4 is Figure 3 an enlarged schematic view of the structure at B in;

[0019] Figure 5 is a schematic structural diagram of components such as the positioning block on the installation plate.

[0020] In the figure: 1 rotating pulley, 2 belt, 3 adjusting pulley, 4 adjusting frame, 5 movable frame, 6 vertical opening, 7 horizontal opening, 8 transmission opening, 9 adjusting motor, 10 vertical screw rod, 11 horizontal screw rod, 12 driving gear, 13 transmission gear, 14 limiting rod, 15 installation passage, 16 installation plate, 17 positioning hole, 18 extrusion groove, 19 positioning block, 20 spring. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Referring to Figures 1-5 , a tension force adjustment structure for a conveyor belt, including a rotating pulley 1, a belt 2, an adjusting pulley 3 and an adjusting frame 4. As shown in the figure, the rotating pulley 1, the belt 2, and the adjusting pulley 3 and the adjusting frame 4 are not connected. Actually, the rotating pulley 1 and the adjusting pulley 3 are rotatably connected to the movable frame 5. Separate drawing is used to avoid obstructing some structures.

[0023] The adjusting frame 4 is provided with a vertical opening 6, a horizontal opening 7 and a transmission opening 8. A vertical screw rod 10 and a horizontal screw rod 11 are respectively arranged in the vertical opening 6 and the horizontal opening 7. An adjusting motor 9 connected to the vertical screw rod 10 is arranged in the transmission opening 8. The horizontal screw rod 11 is connected to the adjusting motor 9 through a transmission mechanism. Movable frames 5 are threadedly sleeved on both the vertical screw rod 10 and the horizontal screw rod 11. The rotating pulley 1 and the adjusting pulley 3 are both rotatably connected to the movable frame 5. An installation plate 16 is arranged on the adjusting frame 4 through an installation channel 15. A wiping cloth is arranged on the surface of the installation plate 16 in contact with the belt 2. An extrusion groove 18 is arranged on the installation plate 16. A positioning block 19 is arranged in the extrusion groove 18 through an extrusion mechanism. A positioning hole 17 is arranged on the adjusting frame 4.

[0024] The described transmission mechanism includes a driving gear 12 installed on the output shaft of the adjusting motor 9. A transmission gear 13 meshing with the driving gear 12 is installed on the horizontal screw rod 11. As shown in the figure, both the driving gear 12 and the transmission gear 13 are bevel gears, and they are actually vertically meshed to achieve the power transmission of the adjusting motor 9.

[0025] The extrusion mechanism includes a spring 20 arranged in the extrusion groove 18. Both ends of the spring 20 are elastically connected to the outer wall of the positioning block 19 and the inner wall of the extrusion groove 18. The elastic potential energy provided by the spring 20 can extrude the positioning block 19. When the installation plate 16 is installed in the installation channel 15, the positioning block 19 will be extruded into the positioning hole 17.

[0026] Limit rods 14 are arranged in both the vertical opening 6 and the horizontal opening 7. The limit rods 14 slidably penetrate through the movable frame 5. The above-mentioned limit rods 14 realize the limit of the movable frame 5, effectively avoiding its rotation together with the vertical screw rod 10 and the horizontal screw rod 11.

[0027] A device channel is arranged on one of the movable frames 5. A rotating motor connected to the rotating pulley 1 is arranged in the device channel. The rotating motor is not drawn in the figure, and it is the power device of the rotating pulley 1.

[0028] The vertical cross-sectional views of the installation channel 15 and the installation plate 16 are both T-shaped. The wiping cloth is connected to the installation plate 16 through Velcro. The T-shaped structure ensures that the installation plate 16 will not vertically move away from the installation channel 15. The connection method of Velcro facilitates the replacement of the wiping cloth.

[0029] When the present utility model is in use, when the length of the belt 2 is inconvenient, but the distance between the two rotating pulleys 1 needs to be adjusted, the adjusting motor 9 is started. The adjusting motor 9 first directly drives the vertical screw rod 10 to rotate, and then drives the horizontal screw rod 11 to rotate in cooperation with the driving gear 12 and the transmission gear 13. When the vertical screw rod 10 and the horizontal screw rod 11 rotate, the three movable frames 5 will move. When the movable frame 5 on the vertical screw rod 10 rises, the movable frame 5 on the horizontal screw rod 11 will move closer, so as to ensure that the belt 2 is in a tight state.

[0030] In this solution, when the belt 2 rotates with the rotating pulley 1, it will be wiped and cleaned by the wiping cloth at the bottom of the installation plate 16 to avoid adhesion of particulate impurities. Because the particulate impurities will enter between the rotating pulley 1 and the belt 2, causing the belt 2 to be squeezed and damaged, which plays a role of mobile cleaning and protection.

[0031] In this solution, press the positioning block 19 in the positioning hole 17. The positioning block 19 will push up the spring 20, then disengage from the positioning hole 17 and enter the extrusion groove 18. Then the installation release operation of the installation plate 16 is completed. Horizontally moving the installation plate 16 can complete the disassembly operation. In the disassembly state, the wiping cloth can be directly torn off for replacement.

[0032] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A tension force adjusting structure for a conveyor belt, comprising a rotating pulley (1), a belt (2), an adjusting pulley (3) and an adjusting frame (4), characterized in that, The adjusting frame (4) is provided with a vertical opening (6), a horizontal opening (7) and a transmission opening (8). A vertical screw rod (10) and a horizontal screw rod (11) are respectively arranged in the vertical opening (6) and the horizontal opening (7). An adjusting motor (9) connected to the vertical screw rod (10) is arranged in the transmission opening (8). The horizontal screw rod (11) is connected to the adjusting motor (9) through a transmission mechanism. Movable frames (5) are threadedly sleeved on both the vertical screw rod (10) and the horizontal screw rod (11). The rotating pulley (1) and the adjusting pulley (3) are both rotatably connected to the movable frame (5). An installation plate (16) is arranged on the adjusting frame (4) through an installation channel (15). A wiping cloth is arranged on the surface of the installation plate (16) in contact with the belt (2). An extrusion groove (18) is arranged on the installation plate (16). A positioning block (19) is arranged in the extrusion groove (18) through an extrusion mechanism. A positioning hole (17) is arranged on the adjusting frame (4).

2. The tension force adjusting structure for a conveyor belt according to claim 1, characterized in that, The transmission mechanism includes a driving gear (12) installed on the output shaft of the adjusting motor (9), and a transmission gear (13) meshing with the driving gear (12) is installed on the horizontal screw rod (11).

3. The tension force adjusting structure for a conveyor belt according to claim 2, wherein The extrusion mechanism includes a spring (20) arranged in the extrusion groove (18), and two ends of the spring (20) are elastically connected to the outer wall of the positioning block (19) and the inner wall of the extrusion groove (18) respectively.

4. The tension force adjusting structure for a conveyor belt according to claim 3, characterized in that, Limit rods (14) are arranged in both the vertical opening (6) and the horizontal opening (7), and the limit rods (14) slidably penetrate through the movable frame (5).

5. The tension adjusting structure for a conveyor belt according to claim 4, characterized in that, A device channel is arranged on one of the movable frames (5), and a rotating motor connected to the rotating pulley (1) is arranged in the device channel.

6. The tension force adjusting structure for a conveyor belt according to claim 5, characterized in that, The vertical cross-sectional views of both the installation channel (15) and the installation plate (16) are in a T shape, and the wiping cloth is connected to the installation plate (16) through a magic tape.

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