Conveyor with adjustable tension degree

Abstract

The utility model relates to the technical field of belt conveyors, in particular to a conveyor capable of adjusting tension degree, which comprises a base, two opposite sides of the base are fixedly connected with supports, a conveying belt is arranged between the two supports, the bottoms of the two supports are fixedly connected with a plurality of third U-shaped parts, the third U-shaped parts are rotatably connected with third rollers, and the third rollers are fixedly connected with the conveying belt. The tension sensor is used for monitoring the tensioning state of the belt in real time, the control system is used for controlling a piston rod of the air cylinder to stretch out and draw back, accurate and rapid adjustment of the tensioning degree of the conveying belt is achieved, and the tensioning degree of the conveying belt can be accurately adjusted. Changes of production working conditions can be effectively coped with, and the material conveying efficiency and the equipment operation stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and in particular to a conveyor with adjustable tension. Background Technology

[0002] In industrial production, the performance of belt conveyors, which are essential for material handling, is crucial. The effective adjustment of the conveyor belt tension directly affects the stable operation of the equipment, the conveying efficiency, and the service life of the belt.

[0003] The belt conveyor disclosed in CN214297812U is designed for easy tension adjustment. It includes a base plate with support plates fixedly connected to both the front and back sides. Limit plates are fixedly connected to both sides of the top of the support plates. A servo motor is fixedly connected to the front end of the outer side of the limit plates. The output end of the servo motor extends through the inner side of the limit plates and is fixedly connected to a drive roller. By configuring a first bearing, a first rotating shaft, a limit roller, a housing, a stepper motor, a threaded rod, a threaded block, a moving plate, a return spring, an adjusting plate, a second bearing, a second rotating shaft, an adjusting roller, a third rotating shaft, a third bearing, a fourth rotating shaft, a fourth bearing, a fifth bearing, a chute, and a slider in cooperation, the conveyor achieves the advantage of easy belt tension adjustment. This allows the belt conveyor to effectively adjust belt tension during long-term use, preventing belt slippage and extending the belt's service life.

[0004] However, when adjusting the tension, the motor needs to drive the threaded rod to rotate, which in turn drives the threaded block, moving plate and other components to move. This process has a slow response speed and cannot adapt to the rapid changes in parameters such as material weight and conveying speed during production, affecting work efficiency. Moreover, the above-mentioned patent does not explicitly mention precise detection methods, so it is impossible to achieve real-time monitoring of the conveyor belt tension, resulting in a lack of reliability and stability of the equipment. To address the above problems, an adjustable tension conveyor is provided as a solution. Utility Model Content

[0005] In order to overcome the shortcomings of existing conveyor belt tension adjustment devices, such as slow response speed and lack of real-time detection device, the technical problem to be solved by this utility model is to provide a conveyor with adjustable tension.

[0006] The technical implementation scheme of this utility model is as follows: an adjustable tension conveyor includes a base, brackets fixedly connected to opposite sides of the base, a conveyor belt between the two brackets, multiple third U-shaped parts fixedly connected to the bottom of the two brackets, third rollers rotatably connected to the third U-shaped parts, the upper surface of the third rollers contacting the conveyor belt, a connecting base fixedly connected to the base, a cylinder and a tension sensor mounted on the connecting base, a first U-shaped part fixedly connected to the piston rod of the cylinder, a first roller rotatably connected to the first U-shaped part, a spring connected to the sensing end of the tension sensor, a second U-shaped part fixedly connected to the other end of the spring, a second roller rotatably connected to the second U-shaped part, and the conveyor belt passing through the through hole between the first U-shaped part and the first roller and the through hole between the second U-shaped part and the second roller.

[0007] In addition, it is particularly preferred that a cushioning pad is fixedly connected to the bottom of the base.

[0008] Furthermore, it is particularly preferred that limit blocks are provided on both sides of the first roller.

[0009] Furthermore, it is particularly preferred that a damper is provided between the tension sensor and the second U-shaped member, with a spring wound around the outer surface of the damper.

[0010] Furthermore, it is particularly preferred that there are no fewer than three third U-shaped parts, and that the first roller and the second roller are located between two adjacent third U-shaped parts, and that the conveyor belt forms a W-shaped structure when it is close to the third roller, the first roller and the second roller.

[0011] Furthermore, it is particularly preferred that a connector is fixedly connected to the side of the third U-shaped component, and a brush is fixedly connected to the top of the connector, with the brush in contact with the conveyor belt.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this utility model monitors the belt tension in real time through a tension sensor and controls the extension and retraction of the cylinder piston rod through a control system, thereby achieving precise and rapid adjustment of the conveyor belt tension, effectively responding to changes in production conditions, and improving material conveying efficiency and equipment operation stability. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the conveyor belt and support frame of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the first roller, cylinder, and connecting base frame of this utility model.

[0016] Figure 4This is a three-dimensional structural diagram of the tension sensor, spring, and damper of this utility model.

[0017] The above-mentioned figures include the following reference numerals: 1-base, 101-buffer pad, 2-conveyor belt, 3-support, 4-first roller, 401-limiting block, 5-first U-shaped component, 6-cylinder, 7-connecting base frame, 8-tension sensor, 9-spring, 10-damper, 11-second roller, 12-second U-shaped component, 13-third roller, 14-third U-shaped component, 15-connector, 16-brush. Detailed Implementation

[0018] 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.

[0019] Example: A tension-adjustable conveyor, such as Figures 1-4 As shown, the system includes a base 1, with brackets 3 fixedly connected to opposite sides of the base. A conveyor belt 2 is positioned between the two brackets 3. Multiple third U-shaped components 14 are fixedly connected to the bottom of both brackets 3. Third rollers 13 are rotatably connected to the third U-shaped components 14, and the upper surface of the third rollers 13 contacts the conveyor belt 2. A connecting frame 7 is fixedly connected to the base 1. A cylinder 6 and a tension sensor 8 are mounted on the connecting frame 7. The piston rod of the cylinder 6 is fixedly connected to a first U-shaped component 5, and the first U-shaped component 5 is rotatably connected to a first roller 4. The sensing end of sensor 8 is connected to spring 9, and the other end of spring 9 is fixedly connected to second U-shaped component 12. Second U-shaped component 12 is rotatably connected to second roller 11. Conveyor belt 2 passes through the through hole between first U-shaped component 5 and first roller 4 and through hole between second U-shaped component 12 and second roller 11. Cylinder 6 is activated, and piston rod of cylinder 6 performs telescopic movement. Piston rod of cylinder 6 drives first U-shaped component 5 and first roller 4 to move up and down, thereby causing first roller 4 and first U-shaped component 5 to cooperate to drive conveyor belt 2 to move.

[0020] like Figure 1 As shown, a buffer pad 101 is fixedly connected to the bottom of the base 1. The design of the buffer pad 101 can effectively absorb the vibration generated during the operation of the device, ensure the stability of the device, and avoid affecting the installation site.

[0021] like Figure 3 As shown, limit blocks 401 are provided on both sides of the first roller 4. The design of the limit blocks 401 can position and guide the conveyor belt 2, preventing the conveyor belt 2 from running off-center during operation.

[0022] like Figures 2-4 As shown, a damper 10 is provided between the tension sensor 8 and the second U-shaped part 12. The spring 9 is wound around the outer surface of the damper 10. When the tension of the conveyor belt 2 changes, the spring 9 will generate extension and contraction, which can easily cause vibration. The damper 10 can absorb the energy generated by the deformation of the spring 9 and convert it into other forms of energy for dissipation, thereby making the extension and contraction of the spring 9 more stable and improving the accuracy of the data detected by the tension sensor 8.

[0023] like Figures 2-4 As shown, there are no fewer than three third U-shaped parts 14, and the first roller 4 and the second roller 11 are located between two adjacent third U-shaped parts 14. When the conveyor belt 2 is close to the third roller 13, the first roller 4 and the second roller 11, it forms a W-shaped structure. This design increases the contact area and friction between the conveyor belt 2 and the first roller 4, the second roller 11 and the third roller 13, which can effectively improve the tension of the conveyor belt 2, prevent slippage, and improve the conveying efficiency.

[0024] like Figure 4 As shown, a connector 15 is fixedly connected to the side of the third U-shaped part 14, and a brush 16 is fixedly connected to the top of the connector 15. The brush 16 contacts the conveyor belt 2, and the brush 16 can clean the dirt attached to the surface in time during the operation of the conveyor belt 2, further improving the smoothness of the operation of the conveyor belt 2.

[0025] During initial operation, the tension sensor 8 monitors the tension between itself and the second roller 11 via the spring 9. When the tension is less than the lower limit of the preset range, it indicates that the conveyor belt 2 is not sufficiently tensioned. The tension sensor 8 sends an electrical signal to the cylinder 6. Upon receiving the signal, the cylinder 6 starts, and its piston rod extends inward, causing the first U-shaped component 5 and its first roller 4 to move downward. During this movement, the first roller 4 presses down on the conveyor belt 2, stretching it and increasing its tension. As the tension of the conveyor belt 2 increases, the upward tension of the conveyor belt 2 on the second roller 11 increases. The second roller 11 then drives the second U-shaped component 12 upward, further stretching the spring 9, which is initially in a stretched state. This increases the tension exerted by the spring 9 on the tension sensor 8 due to its own properties. When the force sensor 8 detects that the tension has reached the preset range, the cylinder 6 stops operating. When the tension exceeds the upper limit of the preset range, indicating that the tension of the conveyor belt 2 is too high, the force sensor 8 sends an electrical signal to the cylinder 6. The cylinder 6 responds to the signal and starts. The piston rod of the cylinder 6 extends outward, causing the piston rod of the cylinder 6 to drive the first U-shaped part 5 and its first roller 4 to move upward, thereby driving the conveyor belt 2 to move. This reduces the tension on the conveyor belt 2, thus reducing the tension of the conveyor belt 2. After the tension of the conveyor belt 2 is reduced, the upward tension of the conveyor belt 2 on the second roller 11 is reduced. The second roller 11 drives the second U-shaped part 12 to move downward, and the stretch of the spring 9 is reduced, thereby reducing the tension applied by the spring 9 to the force sensor 8. The cylinder 6 stops operating when the force sensor 8 detects that the tension has reached the preset range.

[0026] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. An adjustable tension conveyor, comprising a base (1), opposite sides of the base (1) are fixedly connected with supports (3), a conveyor belt (2) is arranged between the two supports (3), characterized in that: The bottoms of the two supports (3) are fixedly connected with a plurality of third U-shaped pieces (14), the third U-shaped pieces (14) are rotationally connected with third rollers (13), the upper surfaces of the third rollers (13) are in contact with the conveying belt (2), the base (1) is fixedly connected with a connecting base (7), the connecting base (7) is provided with a cylinder (6) and a tension sensor (8), the piston rod of the cylinder (6) is fixedly connected with a first U-shaped piece (5), the first U-shaped piece (5) is rotationally connected with a first roller (4), the sensing end of the tension sensor (8) is connected with a spring (9), the other end of the spring (9) is fixedly connected with a second U-shaped piece (12), the second U-shaped piece (12) is rotationally connected with a second roller (11), the conveying belt (2) passes through the through holes between the first U-shaped piece (5) and the first roller (4) and between the second U-shaped piece (12) and the second roller (11).

2. A conveyor of claim 1, wherein: The bottom of the base (1) is fixedly connected with a buffer pad (101).

3. A conveyor of claim 2, wherein: The two sides of the first roller (4) are provided with limiting blocks (401).

4. A conveyor of claim 3, wherein: A damper (10) is arranged between the tension sensor (8) and the second U-shaped piece (12), and the spring (9) is wound on the outer surface of the damper (10).

5. A conveyor of claim 4 wherein: The number of the third U-shaped pieces (14) is not less than three, and the first roller (4) and the second roller (11) are respectively located between two adjacent third U-shaped pieces (14), and the conveying belt (2) is in W-shaped structure when being close to the third roller (13), the first roller (4) and the second roller (11).

6. A conveyor of claim 5 wherein: The side surface of the third U-shaped piece (14) is fixedly connected with a connecting piece (15), the top of the connecting piece (15) is fixedly connected with a brush (16), and the brush (16) is in contact with the conveying belt (2).

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