Belt conveyor roller device with automatic deviation rectifying function

Abstract

The invention relates to the technical field of belt conveyors, in particular to a belt conveyor roller device with an automatic deviation rectifying function. The device comprises a mounting base frame, rotating rollers I and II, a conveying belt and a U-shaped mounting bracket. A connecting frame, a rotating wheel, a rubber wheel I and a pressure sensing element are arranged in the deviation rectifying structure, and a hydraulic oil cylinder can be triggered to push a U-shaped mounting support to deflect when the conveying belt deflects, so that deviation rectifying is achieved. The auxiliary deviation rectifying assembly comprises a rubber wheel II, a worm and gear and a bevel gear, and the driving force on the conveying belt can be enhanced during deviation rectifying. The U-shaped mounting substrate is provided with a plurality of groups of distance induction sensors for detecting the diameter change of the outer wall of the roller; the cleaning mechanism drives the brush to move up and down by means of centrifugal force when the roller rotates to automatically clean the surface of the sensor. The device can effectively correct deviation of the conveying belt, the deviation correction response speed is increased, meanwhile, the detection precision of the sensor is kept, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology, and more particularly to a belt conveyor roller device with automatic deviation correction function. Background Technology

[0002] In industrial production, belt conveyors, as key equipment for material handling, are widely used in mining, metallurgy, building materials, chemical and other fields. One of the core components of a belt conveyor is the roller assembly, whose performance directly affects the operational stability and service life of the conveyor belt. However, in actual operation, conveyor belt misalignment often occurs. This not only leads to accelerated belt wear and reduced equipment lifespan, but can also cause serious problems such as material spillage and equipment failure, affecting the continuity and safety of production.

[0003] With the continuous development of automation technology, belt conveyor roller devices with automatic belt alignment functions have emerged. However, existing automatic belt alignment devices suffer from problems such as complex structure, low alignment efficiency, and poor reliability, failing to meet the requirements of industrial production for equipment stability and high efficiency. For example, some devices cannot quickly and effectively drive the alignment components after detecting conveyor belt deviation, resulting in alignment delays; some devices have unreasonable contact methods between the alignment components and the conveyor belt, which can easily damage the conveyor belt.

[0004] During the operation of a belt conveyor, the diameter of the outer wall of the rollers may change due to factors such as wear and temperature variations. This affects the tension distribution of the conveyor belt and consequently its operational stability. Existing roller devices lack a real-time detection and adjustment mechanism for the outer diameter of the rollers, making it impossible to promptly detect and resolve problems caused by changes in roller diameter. Furthermore, the detection components are prone to accumulating dust and dirt over long-term use, affecting the accuracy of detection, and most existing devices lack effective cleaning equipment. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing conveyor belts, such as low efficiency of automatic correction when the belt deviates and the inability of sensors to accurately detect the diameter of the outer wall of the roller due to dust obstruction. Therefore, this invention proposes a belt conveyor roller device with automatic correction function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A belt conveyor roller device with automatic correction function includes: a mounting base, a rotating roller I rotatably connected to one side of the top of the mounting base via a bearing seat, a U-shaped mounting bracket rotatably connected to the other side of the top of the mounting base via a rotating shaft, a rotating roller II rotatably connected inside the U-shaped mounting bracket via a bearing, and a conveyor belt sleeved between the rotating roller I and the rotating roller II; The correction structure includes two connecting frames fixed to the top of the mounting base and located on both sides of the conveyor belt, and two rotating wheels rotatably connected to the two connecting frames respectively; the correction structure is used to drive the U-shaped mounting bracket to deflect in order to correct the conveyor belt when the conveyor belt deviates. The auxiliary correction assembly includes a U-shaped support frame fixed to the outer wall of the rotating wheel and a power transmission shaft that rotatably passes through the U-shaped support frame. A rubber wheel II is fixedly sleeved on the power transmission shaft. The auxiliary correction assembly is used to increase the correction force on the conveyor belt during the correction process. A U-shaped mounting base plate is fixed to the side of the U-shaped mounting bracket near the rotating roller I and extends to the inside of the conveyor belt. Multiple distance sensing sensors are fixed on the inner wall of the side of the U-shaped mounting base plate away from the rotating roller II for detecting the diameter of the outer wall of the rotating roller II. The cleaning mechanism includes a mounting strip that is slidably connected to the U-shaped mounting base plate and a plurality of cleaning brushes fixed to one side of the mounting strip, the cleaning brushes corresponding to the distance sensing sensor; A drive structure is disposed at the end of the rotating drum II, and is used to drive the cleaning mechanism to clean the distance sensing sensor when the rotating drum II rotates.

[0007] In one possible design, the correction structure further includes: A base plate is fixed to the connecting frame on the side near the conveyor belt; a support column is slidably connected to the top of the base plate; a frame body is fixed to the top of the support column; a positioning pin is fixed to the side of the rotating wheel off-center, and the positioning pin extends into the frame body and slides with the frame body; a rotating shaft is rotatably connected to the outer wall of the rotating wheel, and a rubber wheel I that abuts against one side of the conveyor belt is fixed to the top of the rotating shaft; a fixed base is fixed to the top of the base plate, and a sliding guide rod I slides through the fixed base. One end of rod I is fixedly connected to the support column; a fixed disc is slidably sleeved on the outer wall of sliding guide rod I and located on the side of the fixed base near the support column; a spring element is sleeved on the outer wall of sliding guide rod I, and its two ends abut against the fixed disc and the support column respectively through spring seats; a pressure sensor is embedded in the side of the fixed base near the support column for detecting the pressure on the fixed disc; a hydraulic cylinder has its cylinder body rotatably connected to the top of the mounting base, and its output shaft is rotatably connected to one side of the U-shaped mounting bracket; When the conveyor belt deviates and pushes the rubber wheel I, it drives the rotating wheel to rotate and drives the support column to move through the cooperation of the positioning pin and the frame body, compressing the spring element, so that the fixed disc presses the pressure sensor to generate a signal, controlling the hydraulic cylinder to act, and driving the U-shaped mounting bracket to deflect in order to complete the correction.

[0008] In one possible design, the auxiliary correction component further includes: A worm gear is fixedly sleeved on the outer wall of the power transmission shaft and located inside the U-shaped support frame; a bevel gear II is fixedly sleeved on the outer wall of the rotating shaft; a worm is rotatably connected inside the U-shaped support frame and meshes with the worm gear; a bevel gear I is fixed to one end of the worm and meshes with the bevel gear II. The friction between the conveyor belt and the rotating rubber wheel I drives the rotating shaft to rotate. The meshing bevel gear II, bevel gear I, worm gear, and worm wheel drive the power transmission shaft and rubber wheel II to rotate, thereby applying a reverse driving force to the misaligned conveyor belt.

[0009] In one possible design, the drive structure includes: Multiple mounting bases are fixed to the ends of the rotating roller II; a push rod slides through the mounting base; a U-shaped base is fixed to one end of the push rod near the U-shaped mounting base; a tension spring I is sleeved on the outer wall of the push rod, with its two ends abutting against the U-shaped base and the mounting base respectively; a rolling wheel is rotatably connected inside the U-shaped base; The centrifugal force generated when the rotating roller II rotates drives the U-shaped base and the rolling wheel to move outward, stretching the tension spring I.

[0010] In one possible design, the drive structure further includes: A base plate is fixed to the inner wall of one side of the U-shaped mounting base; a sliding guide rod II slides through the base plate; an arc-shaped support plate is fixed to one end of the sliding guide rod II near the U-shaped base, and its concave surface cooperates with the rolling wheel; a movable base is fixed to one end of the sliding guide rod II away from the arc-shaped support plate; a tension spring II is sleeved on the outer wall of the sliding guide rod II, and its two ends abut against the movable base and the base plate respectively; an inclined groove is provided in the movable base; a vertical groove is provided on one side of the inner wall of the U-shaped mounting base; and a positioning pin is fixedly connected at one end to the mounting strip plate and slidably connected at the other end in the inclined groove and the vertical groove. The outward-moving roller pushes the arc-shaped support plate, which in turn drives the movable base to move through the sliding guide rod II. With the cooperation of the inclined groove and the vertical groove, the positioning pin drives the mounting strip and the cleaning brush to rise to clean the distance sensing sensor.

[0011] In one possible design, the number of push rods is at least six, such that when the rotating drum II rotates, multiple of the rolling wheels can always maintain contact with the arc-shaped support plate and provide a smooth thrust.

[0012] In one possible design, the top two sides of the mounting base are provided with arc-shaped guide rail grooves, and the bottom two sides of the U-shaped mounting bracket are fixed with positioning pins that slide in cooperation with the arc-shaped guide rail grooves to limit the deflection angle of the U-shaped mounting bracket.

[0013] In one possible design, a ball bearing is embedded at the bottom of the positioning pin, and the ball bearing rolls in contact with the bottom inner wall of the arc-shaped guide groove to support the U-shaped mounting bracket and reduce friction.

[0014] In one possible design, a rotating seat is fixed inside the U-shaped support frame and on the outer wall of the rotating wheel. The worm gear rotates through the two rotating seats via bearings to increase the rotational stability of the worm gear.

[0015] In one possible design, a tensioning buffer mechanism is also included, which comprises: Two mounting panels are fixed to the top sides of the mounting base; a sliding guide groove is provided inside the mounting panel; a sliding base is slidably connected to the sliding guide groove; a tension spring III has its two ends connected to the bottom inner wall of the sliding base and the sliding guide groove respectively; a guide wheel is rotatably connected between the two sliding bases, and its outer wall abuts against the inner wall of the conveyor belt. When one side of the conveyor belt is squeezed, it can compress the guide wheel and the sliding base to overcome the tension of the tension spring III and move downward, providing space for the conveyor belt.

[0016] Beneficial effects: In this invention, when the conveyor belt deviates to one side, the rubber wheel I drives the rotating wheel to rotate, and the positioning pin and the frame body cooperate to drive the support column to squeeze the spring element. The pressure sensor receives the pressure signal, which can determine the distance of the conveyor belt deviation and control the output shaft of the hydraulic cylinder to start extending or retracting, so that the pressure on the rotating drum II on the side of the conveyor belt that deviates increases, thereby completing the automatic correction operation of the conveyor belt. In this invention, when the conveyor belt deviates and drives the rotating wheel to rotate, the rubber wheel II rotates upward and applies pressure to the inner wall of the conveyor belt. The rubber wheel I drives the worm to rotate through the cooperation of the bevel gear II and the bevel gear I. The worm meshes with the worm wheel and drives the power transmission shaft and the rubber wheel II to rotate. The rubber wheel II can drive the deviated conveyor belt to the center, further completing the correction operation and improving the correction efficiency. In this invention, when the rotating drum II rotates, it synchronously drives the U-shaped base and the rolling wheel to revolve. Under the action of centrifugal force, the U-shaped base and the rolling wheel move outward, the tension spring I is stretched, the rolling wheel abuts against the inner wall of the arc-shaped support plate and pushes the arc-shaped support plate, the sliding guide rod II and the moving base to move outward, and drives the mounting strip to move up and clean the distance sensing sensor through the cleaning brush, so that the cleaning operation can be automatically completed when the rotating drum II rotates. In this invention, the rolling wheel, under the action of centrifugal force, pushes the movable base to move outward through the arc-shaped support plate. The cooperation of the inclined groove and the vertical groove can drive the positioning pin and the mounting strip to move upward along the trajectory of the vertical groove. The mounting strip cleans the distance sensing sensor with a cleaning brush. When the rotating drum II stops running, the mounting strip drives the cleaning brush to move downward and reset, which can clean the distance sensing sensor again, ensuring the cleanliness of the distance sensing sensor and facilitating the accurate measurement of the outer diameter of the rotating drum II in the later stage.

[0017] In this invention, the conveyor belt deviation can be automatically detected. Through the cooperation of components such as rubber wheel I and rotating wheel, the pressure sensor receives the signal and controls the hydraulic cylinder to complete the automatic correction, avoiding manual operation, improving efficiency, and reducing conveyor belt wear. On the other hand, an auxiliary correction component is provided. When the conveyor belt deviates, rubber wheel II rotates, driving the deviated conveyor belt towards the center, improving correction efficiency. In addition, when rotating roller II rotates, the drive structure uses centrifugal force to automatically clean the distance sensor with a cleaning brush, ensuring measurement accuracy. It can also clean again when the machine stops running, ensuring sensor cleanliness and facilitating accurate measurement of the outer diameter of rotating roller II. This device can effectively correct conveyor belt deviation, improve correction response speed, maintain sensor detection accuracy, and extend equipment life. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of the belt conveyor roller device with automatic correction function provided by the present invention; Figure 2 This is a three-dimensional structural diagram of the base plate, rotating wheel, and U-shaped support frame of the belt conveyor roller device with automatic correction function provided by the present invention. Figure 3 This is a three-dimensional exploded structural diagram of the base plate, rotating wheel, and frame of the belt conveyor roller device with automatic correction function provided by the present invention. Figure 4 This is a three-dimensional exploded structural diagram of the power transmission shaft, worm gear, and U-shaped support frame of the belt conveyor roller device with automatic correction function provided by the present invention. Figure 5 This is a three-dimensional exploded structural diagram of the U-shaped mounting bracket, positioning pin, and mounting base of the belt conveyor roller device with automatic correction function provided by the present invention. Figure 6 This is a three-dimensional exploded structural diagram of the positioning pin and rolling ball of the belt conveyor roller device with automatic correction function provided by the present invention. Figure 7 A three-dimensional structural diagram of the U-shaped mounting base, mounting strip, movable base, and vertical groove of the belt conveyor roller device with automatic correction function provided by the present invention; Figure 8 This is a three-dimensional exploded structural diagram of the movable base, positioning pin, and mounting strip of the belt conveyor roller device with automatic correction function provided by the present invention. Figure 9 A three-dimensional exploded structural diagram of the sliding base and mounting panel of the belt conveyor roller device with automatic correction function provided by the present invention. Figure 10 for Figure 7 Enlarged view of part A in the middle.

[0019] In the diagram: 1. Mounting base; 2. Rotating roller I; 3. Rotating roller II; 4. Conveyor belt; 5. U-shaped mounting bracket; 6. Connecting frame; 7. Rotating wheel; 8. Rotating shaft; 9. Rubber wheel I; 10. Positioning pin; 11. Base plate; 12. Support column; 13. Frame body; 14. Fixed base; 15. Sliding guide rod I; 16. Fixed disc; 17. Pressure sensor; 18. Spring element; 19. Hydraulic cylinder; 20. Arc-shaped guide groove; 21. Positioning pin; 22. Rolling ball; 23. U-shaped mounting base; 24. Distance sensor; 25. Mounting base; 26. 27. Push rod; 28. U-shaped base; 29. ​​Rolling wheel; 30. Tension spring I; 31. Base plate; 32. Sliding guide rod II; 33. Arc-shaped support plate; 34. Moving base; 35. Tension spring II; 36. Inclined groove; 37. Positioning pin; 38. Vertical groove; 39. Mounting strip; 40. Cleaning brush; 41. Mounting panel; 42. Sliding guide groove; 43. Sliding base; 44. Tension spring III; 45. Guide wheel; 46. U-shaped support frame; 47. Power transmission shaft; 48. Worm gear; 49. Rubber wheel II; 50. Worm; 51. Bevel gear I; 52. Bevel gear II. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In one embodiment: Refer to Figures 1-8 The belt conveyor roller assembly mainly includes a mounting base 1, rotating roller I 2, rotating roller II 3, a conveyor belt 4, a correction structure, an auxiliary correction component, a distance sensor 24, and a drive structure. The mounting base 1 serves as the supporting foundation for the entire assembly, providing mounting positions and fixed supports for other components. Rotating roller I 2 and rotating roller II 3 are connected by the conveyor belt 4 to achieve the material conveying function. The correction structure is used to adjust the conveyor belt 4 in a timely manner when it deviates, while the auxiliary correction component improves the correction efficiency. The distance sensor 24 is used to detect the diameter at different positions on the outer wall of rotating roller II 3, and the drive structure cleans the distance sensor 24 as rotating roller II 3 rotates.

[0022] Reference Figure 1 and Figure 5 The mounting base 1 is made of high-strength steel, possessing excellent rigidity and stability, capable of withstanding various loads generated during the operation of the entire device. A rotating drum I2 is rotatably mounted on one side of the top of the mounting base 1 via a frame. The frame and mounting base 1 are fixedly connected by bolts, ensuring the rotating drum I2 is securely installed. A U-shaped mounting bracket 5 is rotatably connected to the other side of the top of the mounting base 1 via a rotating shaft. A rotating drum II3 is rotatably connected inside the U-shaped mounting bracket 5. The rotating shaft is made of high-quality alloy steel, precision-machined and heat-treated, possessing high strength and wear resistance, ensuring the stable rotation of the U-shaped mounting bracket 5 and the rotating drum II3. The rotating drum I2 and rotating drum II3 are connected by a transmission belt 4, made of high-strength rubber material, possessing good elasticity and wear resistance, capable of adapting to the conveying requirements of different materials.

[0023] Reference Figure 5 and Figure 6 To control the rotation angle of the U-shaped mounting bracket 5 and prevent damage to the conveyor belt 4 due to excessive rotation, arc-shaped guide grooves 20 are provided on both sides of the top of the mounting base 1, and positioning pins 21 are fixed on both sides of the bottom of the U-shaped mounting bracket 5. The positioning pins 21 slide with the arc-shaped guide grooves 20. Rolling balls 22 are rolled and embedded in the bottom of the positioning pins 21. The rolling balls 22 contact the bottom inner wall of the arc-shaped guide grooves 20. When the U-shaped mounting bracket 5 rotates, the rolling balls 22 can reduce friction and support the U-shaped mounting bracket 5, preventing it from tilting.

[0024] Reference Figures 1-3 and Figure 5The correction structure is set on the top of the mounting base 1 and mainly includes two connecting frames 6, two rotating wheels 7, base plate 11, support column 12, frame body 13, positioning pin 10, rotating shaft 8, rubber wheel I 9, fixed base 14, sliding guide rod I 15, fixed disc 16, spring element 18, pressure sensor 17 and hydraulic cylinder 19, etc. A protective cover can be installed on the outside of the rotating wheel 7.

[0025] Reference Figures 1-3 and Figure 5Two connecting frames 6 are fixed to the top of the mounting base 1 and located on both sides of the conveyor belt 4. A base plate 11 is fixed to the connecting frame 6 near the conveyor belt 4. A support column 12 is slidably connected to the top of the base plate 11, allowing the support column 12 to slide freely horizontally on the base plate 11. A frame body 13 is fixed to the top of the support column 12. A rotating wheel 7 rotates on one side of the connecting frame 6. A positioning pin 10 is fixed to the side of the rotating wheel 7 off-center, extending into the frame body 13 and slidingly engaging with it. When the rotating wheel 7 rotates, the positioning pin 10 slides within the frame body 13, thereby driving the support column 12 to move. A rotating shaft 8 rotates on the outer wall of the rotating wheel 7. A rubber wheel I 9 is fixed to the top of the rotating shaft 8, abutting against one side of the conveyor belt 4. When the conveyor belt 4 deviates, it contacts the rubber wheel I 9 and pushes the rotating wheel 7 to rotate. A fixed base 14 is fixed to the top of a base plate 11. A sliding guide rod I 15 slides through the fixed base 14, and one end of the sliding guide rod I 15 is fixedly connected to a support column 12. A fixed disc 16 is slidably sleeved on the outer wall of the sliding guide rod I 15, located on the side of the fixed base 14 near the support column 12. A spring element 18 is sleeved on the outer wall of the sliding guide rod I 15. The spring element 18 is a cylindrical helical spring with an elastic coefficient ranging from 50 to 100 N / mm, a free length ranging from 50 to 100 mm, and an outer diameter ranging from 20 to 40 mm. Both ends of the spring element 18 abut against the fixed disc 16 and the support column 12 respectively through spring seats. Multiple pressure sensors 17 are fixedly embedded on the side of the fixed base 14 near the supporting column 12. When the spring element 18 is compressed, the fixed disk 16 applies pressure to the pressure sensors 17 under the elastic force of the spring element 18. The pressure sensors 17 can detect the pressure on the fixed disk 16 and transmit the pressure signal to the control system (not shown in the figure). A hydraulic cylinder 19 is rotatably connected to the top of the mounting frame 1. The output shaft of the hydraulic cylinder 19 is rotatably connected to one side of the U-shaped mounting bracket 5. When the pressure sensor 17 detects pressure, the control system starts the hydraulic cylinder 19 according to the pressure signal. The output shaft of the hydraulic cylinder 19 begins to extend or retract, causing the U-shaped mounting bracket 5 to rotate. This causes the rotating roller II 3 to move forward on the side of the conveyor belt 4 that is offset, and to move backward on the other side. This increases the pressure on the rotating roller II 3 on the side of the conveyor belt 4 that is offset, and decreases the pressure on the rotating roller II 3 on the other side. The conveyor belt 4 will then shift to the side with less pressure, completing the automatic correction operation of the conveyor belt 4.

[0026] Reference Figures 2-4 The auxiliary correction component is used to improve the correction efficiency when the correction structure is running. It mainly includes components such as U-shaped support frame 45, power transmission shaft 46, worm gear 47, worm 49, bevel gear I 50, bevel gear II 51 and rubber wheel II 48.

[0027] Reference Figure 3 and Figure 4 A U-shaped support frame 45 is fixed to the outer wall of the rotating wheel 7, and the power transmission shaft 46 rotates through the U-shaped support frame 45. A worm gear 47 is fixedly sleeved on the outer wall of the power transmission shaft 46 and located inside the U-shaped support frame 45. A bevel gear II 51 is fixedly sleeved on the outer wall of the rotating shaft 8. A worm 49 is rotatably connected inside the U-shaped support frame 45, meshing with the worm gear 47. One end of the worm 49 is fixedly fitted with a bevel gear I 50 that meshes with the bevel gear II 51. Two rubber wheels II 48 are fixedly sleeved on the outer wall of the power transmission shaft 46, located on both sides of the power transmission shaft 46. When the transmission belt 4 deviates and pushes the rubber wheel I 9, the friction between the transmission belt 4 and the rubber wheel I 9 drives the rubber wheel I 9 to rotate. The rubber wheel I 9 drives the worm gear 49 to rotate through the engagement of the bevel gear II 51 and the bevel gear I 50. The worm gear 49 meshes with the worm gear 47, driving the power transmission shaft 46 and the rubber wheel II 48 to rotate. When the conveyor belt 4 deflects and drives the rotating wheel 7 to rotate, the rotating wheel 7 drives the rubber wheel II 48 to rotate synchronously through the U-shaped support frame 45, so that the rubber wheel II 48 abuts against the inner wall of the conveyor belt 4, and the rotation of the rubber wheel II 48 completes the correction operation of the conveyor belt 4. As the rotation angle of the rotating wheel 7 gradually increases, the rubber wheel II 48 gradually increases the pressure on the inner wall of the conveyor belt 4, further improving the correction efficiency.

[0028] Reference Figure 4 In order to increase the stability of the worm 49 and enable the rotating shaft 8 to stably drive the power transmission shaft 46, the U-shaped support frame 45 and the outer wall of the rotating wheel 7 are both fixed with rotating seats, and the worm 49 rotates through the two rotating seats.

[0029] Reference Figure 1 , Figure 5 , Figure 7 , Figure 10A U-shaped mounting bracket 5 is fixed to a U-shaped mounting base plate 23 on the side near the rotating drum I2, and the U-shaped mounting base plate 23 penetrates the conveyor belt 4. Multiple distance sensors 24 are fixed to the inner wall of the U-shaped mounting base plate 23 on the side away from the rotating drum II3, used to detect the diameter at different positions on the outer wall of the rotating drum II3. Since the diameter of the drum's outer wall may change due to wear, temperature variations, etc., the distance sensors 24 can detect the diameter changes in real time, allowing for timely adjustments to ensure uniform tension distribution of the conveyor belt and improve its operational stability. A mounting strip 38 is slidably connected inside the U-shaped mounting base plate 23. Multiple cleaning brushes 39 (nylon bristles, 0.1-0.3mm in diameter) are fixed to one side of the mounting strip 38, and these cleaning brushes 39 cooperate with the distance sensors 24 to clean the distance sensors 24, ensuring the accuracy of the distance sensor measurements. During long-term use, dust and dirt can easily accumulate on the surface of the distance sensor 24, affecting the accuracy of detection. The cleaning brush 39 can remove these impurities in a timely manner, ensuring that the distance sensor 24 is always in good working condition.

[0030] Reference Figure 5 , Figure 7 , Figure 10 and Figure 8 The drive structures are respectively set at both ends of the rotating drum II3, and are used to drive the mounting strip 38 to clean the distance sensing sensor 24 when the rotating drum II3 rotates. Each drive structure mainly includes components such as mounting base 25, push rod 26, U-shaped base 27, rolling wheel 28, tension spring I 29, base plate 30, sliding guide rod II 31, arc-shaped support plate 32, moving base 33, tension spring II 34, inclined groove 35, positioning pin 36 and vertical groove 37.

[0031] Reference Figure 5 , Figure 7 , Figure 10Multiple mounting bases 25 are fixed to one end of the rotating roller II 3. Push rods 26 slide through each mounting base 25, with at least six push rods 26. These push rods allow adjacent rolling wheels 28 to simultaneously contact the concave surface of the arc-shaped support plate 32, enabling the rolling wheels 28 to smoothly push the arc-shaped support plate 32 as the rotating roller II 3 drives the push rods 26 to revolve. A U-shaped base 27 is fixed to the end of each push rod 26 near the U-shaped mounting base 23. A tension spring I 29 is sleeved on the outer wall of the push rod 26. The tension spring I 29 is a cylindrical helical spring with an elastic coefficient ranging from 30-80 N / mm, a free length ranging from 30-80 mm, and an outer diameter ranging from 15-35 mm. The two ends of the tension spring I 29 abut against the sides of the U-shaped base 27 and the mounting base 25 respectively via spring seats, allowing the U-shaped base 27 to reset after losing centrifugal force. Roller 28 is rotatably connected inside the U-shaped base 27.

[0032] Reference Figure 7 , Figure 10 and Figure 8 A base plate 30 is fixed to the inner wall of one side of the U-shaped mounting base 23. A sliding guide rod II 31 slides through the base plate 30. An arc-shaped support plate 32 is fixed to the end of the sliding guide rod II 31 near the U-shaped base 27. The concave surface of the arc-shaped support plate 32 cooperates with the rolling wheel 28 to reduce the friction between the rolling wheel 28 and the arc-shaped support plate 32 when the rotating roller II 3 drives the U-shaped base 27 and the rolling wheel 28 to revolve. A movable base 33 is fixed to the end of the sliding guide rod II 31 away from the arc-shaped support plate 32. A tension spring II 34 is abutted against the side of the movable base 33 that is close to the base plate 30 through a spring seat. The tension spring II 34 is a cylindrical helical spring with an elastic coefficient ranging from 20-60 N / mm, a free length ranging from 20-60 mm, and an outer diameter ranging from 10-30 mm. The tension spring II 34 is sleeved on the outer wall of the sliding guide rod II 31. The movable base 33 is provided with an inclined groove 35, and a positioning pin 36 is slidably connected in the inclined groove 35. The inner wall of one side of the U-shaped mounting base plate 23 is provided with a vertical groove 37 that slidably engages with the positioning pin 36. One end of the positioning pin 36 is fixedly connected to the mounting strip 38.

[0033] When the rotating roller II3 rotates, it synchronously drives the U-shaped base 27 and the rolling wheel 28 to revolve. Under the action of centrifugal force, the U-shaped base 27 and the rolling wheel 28 move outward, and the tension spring I 29 is stretched. The rolling wheel 28 abuts against the inner wall of the arc-shaped support plate 32 and pushes the arc-shaped support plate 32, the sliding guide rod II 31 and the moving base 33 to move outward. During the movement of the moving base 33, the cooperation of the inclined groove 35 and the vertical groove 37 can drive the positioning pin 36 and the mounting strip 38 to move upward along the trajectory of the vertical groove 37. The mounting strip 38 cleans the distance sensing sensor 24 through the cleaning brush 39. When the rotating drum II3 stops running, the U-shaped base 27 resets, and the movable base 33 also resets under the tension of the tension spring II34. The mounting plate 38 drives the cleaning brush 39 to move down and reset, which can clean the distance sensor 24 again, ensuring the cleanliness of the distance sensor 24, and facilitating the accurate measurement of the outer diameter of the rotating drum II3 in the later stage.

[0034] In another embodiment: Refer to Figure 9 In order to allow the conveyor belt 4 to make way when the U-shaped mounting bracket 5 drives the rotating roller II 3 to rotate and the power transmission shaft 46 drives the rubber wheel II 48 to deflect upward and abut against the inner wall of the conveyor belt 4, so as to avoid the inner wall of the conveyor belt 4 being subjected to excessive pressure and breaking, mounting panels 40 are fixed on both sides of the top of the mounting base 1. Each mounting panel 40 is provided with a sliding guide groove 41. Each sliding guide groove 41 is slidably connected to a sliding base 42. The bottom of each sliding base 42 is fixed with a tension spring III 43 through a spring seat. The tension spring III 43 is a cylindrical helical spring with an elastic coefficient ranging from 40 to 90 N / mm, a free length ranging from 40 to 90 mm, and an outer diameter ranging from 18 to 38 mm. Furthermore, the bottom end of the tension spring III 43 is fixedly connected to the bottom inner wall of the corresponding sliding guide groove 41 via a spring seat. A single guide wheel 44 rotatably passes between the two sliding bases 42, and the outer wall of the guide wheel 44 abuts against the inner wall of the conveyor belt 4. The guide wheel 44, rotating roller I 2, and rotating roller II 3 are all in contact with the inner wall of the conveyor belt 4. Through the cooperation of the tension spring III 43 and the sliding base 42, the position of the guide wheel 44 can be automatically adjusted according to the force applied to the conveyor belt 4, thus achieving clearance protection for the conveyor belt 4.

[0035] The method for using a belt conveyor roller device with automatic deviation correction function includes the following steps: S1. The rotating drum I2 is driven by the motor to rotate. The rotating drum I2, along with the guide wheel 44 and the rotating drum II3, drives the conveyor belt 4 to run and perform conveying operations. When the conveyor belt 4 deviates to one side, the conveyor belt 4 contacts the rubber wheel I9 and pushes the rotating wheel 7 to rotate. The rotating wheel 7 drives the support column 12 and the sliding guide rod I15 to move to one side through the cooperation of the positioning pin 10 and the frame body 13, and compresses the spring element 18. The fixed disc 16 applies pressure to the pressure sensor 17 under the elastic force of the spring element 18. The distance of the conveyor belt 4 deviates can be determined by the pressure signal received by the pressure sensor 17. S2. Based on the pressure signal received by the pressure sensor 17, the hydraulic cylinder 19 is activated. The output shaft of the hydraulic cylinder 19 begins to extend or retract, causing the U-shaped mounting bracket 5 to rotate. This causes the rotating roller II3 to move forward on the side of the conveyor belt 4 that is offset, and to move backward on the other side. This increases the pressure on the rotating roller II3 on ​​the side of the conveyor belt 4 that is offset, and decreases the pressure on the rotating roller II3 on ​​the other side. As a result, the conveyor belt 4 will shift to the side with less pressure, completing the automatic correction operation of the conveyor belt 4. In addition, when the U-shaped mounting bracket 5 drives the rotating roller II3 to rotate and adjusts the pressure between the two sides of the rotating roller II3 and the conveyor belt 4, the cooperation between the guide wheel 44 and the tension spring III 43 can give way to the conveyor belt 4, preventing the rotating roller II3 and the U-shaped mounting bracket 5 from becoming too tight on one side of the conveyor belt 4 and breaking during the rotation process. S3. When the conveyor belt 4 deviates and drives the rotating wheel 7 to rotate, the rotating wheel 7 drives the rubber wheel II 48 to rotate synchronously through the U-shaped support frame 45. This allows the rubber wheel II 48 to contact the inner wall of the conveyor belt 4. As the rotation angle of the rotating wheel 7 gradually increases, the rubber wheel II 48 gradually increases the pressure on the inner wall of the conveyor belt 4. In addition, the contact between the conveyor belt 4 and the rubber wheel I 9 can drive the rubber wheel I 9 to rotate. The rubber wheel I 9 drives the worm 49 to rotate through the cooperation of the bevel gear II 51 and bevel gear I 50. The worm 49 meshes with the worm wheel 47 to drive the power transmission shaft 46 and the rubber wheel II 48 to rotate. The rubber wheel II 48 can drive the deviated conveyor belt 4 to the center, further completing the correction operation and improving the correction efficiency. S4. When the U-shaped mounting bracket 5 drives the rotating drum II3 to rotate and complete the correction operation, a pressure difference will occur between the outer walls on both sides of the rotating drum II3 and the conveyor belt 4. Over time, the outer walls of the rotating drum II3 will wear down, causing a deviation in the diameter of the outer walls on both sides. Multiple distance sensors 24 can detect the diameter of the outer walls on both sides and in the middle of the rotating drum II3 in real time, allowing for timely replacement of the rotating drum II3 when a deviation occurs. However, when the conveyor belt 4 is conveying materials, dust in the air and dust carried by the materials will adhere to the distance sensors 24, affecting the accuracy of the distance sensors. Therefore, the surface of the conveyor belt 4 needs to be cleaned before and after operation to ensure the accuracy of the detection of the outer walls of the rotating drum II3. Specifically, when the rotating drum II3 rotates, it synchronously drives the U-shaped base 27 and the rolling wheel 28 to revolve. Under the action of centrifugal force, seat 27 and roller 28 move outward, tension spring I 29 is stretched, roller 28 abuts against the inner wall of arc-shaped support plate 32 and pushes arc-shaped support plate 32, sliding guide rod II 31 and moving base 33 outward. During the movement of moving base 33, the cooperation of inclined groove 35 and vertical groove 37 can drive positioning pin 36 and mounting strip 38 to move upward along the trajectory of vertical groove 37. Mounting strip 38 cleans distance sensor 24 through cleaning brush 39. When rotating roller II 3 stops running, U-shaped base 27 resets, and moving base 33 also resets under the action of tension spring II 34. Mounting strip 38 drives cleaning brush 39 to move downward and reset, which can clean distance sensor 24 again, ensuring the cleanliness of distance sensor 24, which is convenient for accurate measurement of the outer diameter of rotating roller II 3 later.

[0036] As is known to those skilled in the art, the working principles and wiring configurations of the distance sensor 24, pressure sensor 17, and hydraulic cylinder 19 are conventional technical methods. Given that the structure, operating logic, and electrical connection methods of the aforementioned components are all conventional technical solutions in the field, and that relevant technical details can be directly obtained from existing technical documents or standards, this patent specification will not elaborate further. Those skilled in the art can select, match, and integrate the aforementioned components according to specific application scenario requirements and existing technical standards to achieve the corresponding functional requirements.

[0037] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A belt conveyor roller device with automatic correction function, comprising a mounting base (1), wherein a rotating roller I (2) is rotatably connected to one side of the top of the mounting base (1) via a bearing seat, and a U-shaped mounting bracket (5) is rotatably connected to the other side of the top of the mounting base (1) via a rotating shaft, wherein a rotating roller II (3) is rotatably connected to the U-shaped mounting bracket (5) via a bearing, and a conveyor belt (4) is sleeved between the rotating roller I (2) and the rotating roller II (3), characterized in that, Also includes: The correction structure includes two connecting frames (6) fixed on the top of the mounting base (1) and located on both sides of the conveyor belt (4), and two rotating wheels (7) rotatably connected to the two connecting frames (6); the correction structure is used to drive the U-shaped mounting bracket (5) to deflect to correct the conveyor belt (4) when the conveyor belt (4) deviates. The auxiliary correction assembly includes a U-shaped support frame (45) fixed to the outer wall of the rotating wheel (7) and a power transmission shaft (46) that rotates through the U-shaped support frame (45). A rubber wheel II (48) is fixedly sleeved on the power transmission shaft (46). The auxiliary correction assembly is used to increase the correction force on the transmission belt (4) during the correction process. The U-shaped mounting base plate (23) is fixed to the side of the U-shaped mounting bracket (5) near the rotating roller I (2) and extends to the inside of the conveyor belt (4). Multiple distance sensing sensors (24) are fixed on the inner wall of the side of the U-shaped mounting base plate (23) away from the rotating roller II (3) for detecting the diameter of the outer wall of the rotating roller II (3). The cleaning mechanism includes a mounting strip (38) slidably connected to the U-shaped mounting base plate (23) and a plurality of cleaning brushes (39) fixed to one side of the mounting strip (38), the cleaning brushes (39) corresponding to the distance sensing sensor (24); A drive structure is provided at the end of the rotating drum II (3) for driving the cleaning mechanism to clean the distance sensing sensor (24) when the rotating drum II (3) rotates.

2. The belt conveyor roller device with automatic deviation correction function according to claim 1, characterized in that, The correction structure also includes: A base plate (11) is fixed to the connecting frame (6) on the side near the conveyor belt (4); a support column (12) is slidably connected to the top of the base plate (11); a frame body (13) is fixed to the top of the support column (12); a positioning pin (10) is fixed to the side of the rotating wheel (7) off-center, and the positioning pin (10) extends into the frame body (13) and slides into the frame body (13); a rotating shaft (8) is rotatably connected to the outer wall of the rotating wheel (7), and a rubber wheel I (9) is fixed at the top of the rotating shaft (8) to abut against one side of the conveyor belt (4); a fixed base (14) is fixed to the top of the base plate (11), and a sliding guide rod I (15) slides through the fixed base (14). One end of the sliding guide rod I (15) is fixedly connected to the support column (12); the fixed disc (16) is slidably sleeved on the outer wall of the sliding guide rod I (15) and located on the side of the fixed base (14) near the support column (12); the spring element (18) is sleeved on the outer wall of the sliding guide rod I (15), and its two ends are respectively abutted against the fixed disc (16) and the support column (12) through spring seats; the pressure sensor (17) is embedded on the side of the fixed base (14) near the support column (12) and is used to detect the pressure on the fixed disc (16); the hydraulic cylinder (19) has its cylinder body rotatably connected to the top of the mounting base (1), and its output shaft is rotatably connected to one side of the U-shaped mounting bracket (5).

3. The belt conveyor roller device with automatic deviation correction function according to claim 2, characterized in that, The auxiliary correction component also includes: The worm gear (47) is fixedly sleeved on the outer wall of the power transmission shaft (46) and located inside the U-shaped support frame (45); the bevel gear II (51) is fixedly sleeved on the outer wall of the rotating shaft (8); the worm (49) is rotatably connected inside the U-shaped support frame (45) and meshes with the worm gear (47); the bevel gear I (50) is fixed to one end of the worm (49) and meshes with the bevel gear II (51).

4. The belt conveyor roller device with automatic deviation correction function according to claim 3, characterized in that, The driving structure includes: Multiple mounting bases (25) are fixed to the ends of the rotating roller II (3); a push rod (26) slides through the mounting base (25); a U-shaped base (27) is fixed to one end of the push rod (26) near the U-shaped mounting base (23); a tension spring I (29) is sleeved on the outer wall of the push rod (26), and its two ends abut against the U-shaped base (27) and the mounting base (25) respectively; a rolling wheel (28) is rotatably connected inside the U-shaped base (27); The centrifugal force generated when the rotating roller II (3) rotates drives the U-shaped base (27) and the rolling wheel (28) to move outward, stretching the tension spring I (29).

5. The belt conveyor roller device with automatic correction function according to claim 4, characterized in that, The driving structure also includes: A base plate (30) is fixed to the inner wall of one side of the U-shaped mounting base (23); a sliding guide rod II (31) slides through the base plate (30); an arc-shaped support plate (32) is fixed to one end of the sliding guide rod II (31) near the U-shaped base (27), and its concave surface cooperates with the rolling wheel (28); a movable base (33) is fixed to one end of the sliding guide rod II (31) away from the arc-shaped support plate (32); and a tension spring II (3... 4) Sleeve on the outer wall of the sliding guide rod II (31), with its two ends abutting against the movable base (33) and the base plate (30) respectively; inclined groove (35), provided in the movable base (33); vertical groove (37), provided on one side inner wall of the U-shaped mounting base plate (23); positioning pin (36), one end fixedly connected to the mounting strip plate (38), and the other end slidably connected in the inclined groove (35) and the vertical groove (37).

6. The belt conveyor roller device with automatic correction function according to claim 5, characterized in that, The number of push rods (26) is at least 6, so that when the rotating drum II (3) rotates, multiple of the rolling wheels (28) can always maintain contact with the arc-shaped support plate (32) and provide a smooth thrust.

7. The belt conveyor roller device with automatic correction function according to claim 6, characterized in that, The top two sides of the mounting base (1) are provided with arc-shaped guide rail grooves (20), and the bottom two sides of the U-shaped mounting bracket (5) are fixed with positioning pins (21) that slide with the arc-shaped guide rail grooves (20) to limit the deflection angle of the U-shaped mounting bracket (5).

8. The belt conveyor roller device with automatic deviation correction function according to claim 7, characterized in that, The bottom of the positioning pin (21) is fitted with a ball bearing (22), which makes rolling contact with the bottom inner wall of the arc-shaped guide groove (20).

9. The belt conveyor roller device with automatic deviation correction function according to claim 8, characterized in that, The U-shaped support frame (45) and the outer wall of the rotating wheel (7) are both fixed with rotating seats, and the worm (49) rotates through the two rotating seats via bearings.

10. The belt conveyor roller device with automatic correction function according to claim 9, characterized in that, It also includes a tensioning buffer mechanism, which comprises: Two mounting panels (40) are fixed to the top two sides of the mounting base (1); a sliding guide groove (41) is provided in the mounting panel (40); a sliding base (42) is slidably connected in the sliding guide groove (41); a tension spring III (43) has its two ends connected to the bottom inner wall of the sliding base (42) and the sliding guide groove (41) respectively; a guide wheel (44) is rotatably connected between the two sliding bases (42), and its outer wall abuts against the inner wall of the conveyor belt (4); When one side of the conveyor belt (4) is squeezed, it can compress the guide wheel (44) and the sliding base (42) to overcome the tension of the tension spring III (43) and move downward, providing space for the conveyor belt (4).

Images