Material conveying belt deflection detecting and correcting structure

Abstract

The utility model discloses a material conveyor belt deflection detecting and correcting structure and relates to the technical field of engineering equipment, the detecting and correcting structures are symmetrically arranged, a carrier roller is installed between the detecting and correcting structures on the two sides, the detecting and correcting structures comprise a supporting frame, and the detecting and correcting structures are arranged at the two ends of the supporting frame. Transverse sliding blocks are arranged on the two sides of the supporting frame in a sliding mode, longitudinal sliding blocks are arranged on the transverse sliding blocks in a sliding mode, the carrier rollers are installed on the longitudinal sliding blocks, deflection of the conveying belt is adjusted in time through real-time monitoring feedback of a pressure sensor, and the provided control method is beneficial to automatic implementation of adjustment. The system has the advantages of simple operation and high safety and reliability, and manpower is saved by an intelligent operation mode.

Description

Technical Field

[0001] This utility model relates to the field of engineering equipment technology, specifically to a material conveyor belt skew detection and correction structure. Background Technology

[0002] In water conservancy, tunnel construction, and mining projects, belt conveyors are used to transport materials during construction. During operation, load variations and long-term operation can cause belt misalignment. Misalignment leads to friction between one side or edge of the belt and components such as the frame and idlers, accelerating belt wear and even causing tearing. When the belt deviates, excessive localized stress on the rollers and idlers can damage bearings, cause surface wear or deformation, and material may spill from the belt edges, resulting in waste, environmental pollution, and even requiring shutdown for cleaning. In severe misalignment, the belt may suddenly break due to localized stress concentration, causing equipment shutdown or injury from flying debris. Severe friction between the belt and metal components can generate high temperatures or sparks, potentially causing fires in flammable environments. Currently, mechanical correction methods are commonly used, which cannot monitor the conveyor belt's operating status in real time. Furthermore, when significant misalignment occurs, manual correction is crucial, greatly increasing the workload of workers, severely impacting work efficiency, and making it difficult to guarantee construction progress. Utility Model Content

[0003] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a material conveyor belt skew detection and correction structure, which solves the problem that the belt will skew and cannot be automatically adjusted.

[0004] Technical solution

[0005] To solve the above problems, the technical solution provided by this utility model is as follows:

[0006] A material conveyor belt skew detection and correction structure is provided. The detection and correction structure is symmetrically arranged, and a roller is installed between the two sides of the detection and correction structure. The structure includes a support frame, and the detection and correction structure is located at both ends of the support frame. A transverse slider is slidably provided on both sides of the support frame, and a longitudinal slider is slidably provided on the transverse slider. The roller is installed on the longitudinal slider.

[0007] Furthermore, sliding frames are fixedly provided on both sides of the support frame, and guide rails are provided inside the sliding frames, with the transverse slider fixed on the guide rails.

[0008] Furthermore, the guide rails are at least two arranged side by side.

[0009] Furthermore, a motor is provided on the support frame outside the sliding frame, a coupling is provided on the output shaft of the motor, and a lead screw is provided on the coupling to pass through the transverse slider.

[0010] Furthermore, a second motor is fixedly mounted on the transverse slider, a second coupling is mounted on the output shaft of the second motor, and a second lead screw is mounted on the second coupling, which extends into the longitudinal slider.

[0011] Furthermore, the motors are two motors arranged side by side.

[0012] Furthermore, the longitudinal slider consists of a slider and a mounting frame, the mounting frame being fixedly installed on the top of the slider, and a roller bracket being rotatably mounted inside the mounting frame.

[0013] Furthermore, both the mounting frame and the roller bracket are U-shaped structures.

[0014] Furthermore, the idler roller includes an idler roller support shaft and a roller or roller sleeve located on the idler roller support shaft. Both ends of the idler roller support shaft are fixed inside the idler roller bracket, and a pressure sensor is provided between the idler roller support shaft and the idler roller bracket.

[0015] Furthermore, the idler roller has a support axis symmetrical structure with both sides curved upwards and the middle position lower than the two sides.

[0016] Beneficial effects

[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0018] 1. By reading and calculating the pressure difference between the two sides of the idler roller, the conveyor belt skew can be determined, and the stepper motor can be driven to adjust the idler roller posture so that the conveyor belt returns to the normal working position, reducing the inconvenience of on-site manual monitoring and adjustment;

[0019] 2. The monitoring device is real-time and forms a feedback closed loop. It adjusts the conveyor belt skew in a timely manner through real-time monitoring and feedback from the pressure sensor. The proposed control method facilitates the automated implementation of the adjustment and has the advantages of simple operation, high safety and reliability. The intelligent operation mode saves manpower. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the horizontal slider in Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram of the longitudinal slider in Embodiment 1 of this utility model;

[0023] Figure 4 This is a schematic diagram of the composition of the longitudinal slider in Embodiment 1 of this utility model;

[0024] Figure 5 This is a flowchart of the process of Embodiment 1 of this utility model. Detailed Implementation

[0025] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] Combined with appendix Figure 1-5 A material conveyor belt skew detection and correction structure is disclosed. The detection and correction structure is symmetrically arranged, with detection and correction structures on both sides jointly installing and adjusting the conveyor belt. Idler rollers 13 are jointly installed between the two detection and correction structures, and the conveyor belt is mounted on the idler rollers 13. The structure includes a longitudinal slider 1, which consists of a slider 101 and a mounting frame 102. The mounting frame 102 is mounted on the slider 101. The longitudinal slider 1 is used to directly install and support the idler rollers 13 of the conveyor belt. The mounting frame 102 is an inclined structure, tilted towards the direction of mounting the idler rollers 13, thereby preventing interference with the idler rollers after the position of the mounting frame 102 changes, so that the mounting frame 102 can only play a supporting role for the idler rollers 13 within the mounting frame 102.

[0028] The idler roller 13 includes an idler roller support shaft 14, which is a symmetrical support shaft structure with both sides curved upwards and the middle position lower than the sides. Rollers or roller sleeves are rotatably provided at the middle position and both sides of the idler roller support shaft 14. By setting a conveyor belt on the rollers or roller sleeves, the conveyor belt plays the role of loading. By adjusting the position of the two ends of the idler roller 13, it is ensured that the conveyor belt will not be deflected and the material loaded in the conveyor belt will not be moved out.

[0029] The mounting frame 102 of the longitudinal slider 1 is provided with a roller bracket 2. The roller bracket 2 rotates within the mounting frame 102. Both the mounting frame 102 and the roller bracket 102 are U-shaped structures. The roller bracket 2 is used to connect with the roller 13. The roller is fixedly mounted on the roller bracket 2 at both ends of the support shaft 14. Since the roller bracket 2 can rotate within the mounting frame 102, when the relative position between the longitudinal slider 1 and the roller 13 changes, the roller bracket 2 can adaptively rotate, thereby adjusting the relative position between the two sections of the roller 13. By adjusting the relative position of the two ends of the roller 13, the skewness of the conveyor belt mounted on the roller 13 is changed. Furthermore, the rotation of the roller bracket 2 within the mounting frame 102 can also prevent jamming.

[0030] Pressure sensors 3 are also provided between the two ends of the idler support shaft 14 and the idler bracket 2. The pressure sensors 3 can detect the pressure of the idler support shaft 14 on the idler bracket 2 in real time, thereby obtaining the force state of the idler 13 and the offset trend of the conveyor belt on the idler 13.

[0031] The idler roller 13 is provided with a support frame 12 on its lower side. The support frame 12 is used to support the belt conveyor. Since the detection and correction structure and the idler roller 13 are both set on the support frame 12, it is also convenient to directly change the position of the idler roller 13 by moving the support frame 12.

[0032] The top surfaces of both sides of the support frame 12 are fixedly provided with sliding frames 121. The sliding frames 121 are provided with guide rails 9. There are at least two guide rails 9, which are arranged in parallel inside the sliding frames 121. A horizontal slider 7 is slidably provided on the guide rails 9.

[0033] The support frame 12 is fixedly equipped with a motor 11 at both ends. The output shaft of the motor 11 is connected to a coupling 10. A lead screw 8 is fixedly installed on the coupling 10. The lead screw 8 extends into the interior of the transverse slider 7. The transverse slider 7 is provided with a threaded groove that cooperates with the lead screw 8. By rotating the lead screw 8 in different directions, the transverse slider 7 is driven to slide in different directions on the guide rail 9, inward and outward.

[0034] The horizontal slider 7 is equipped with a motor 6 with its output shaft located on the upper side. Two motors 6 are fixedly arranged side by side on the horizontal slider 7. The output shaft of the motor 6 is equipped with a coupling 5. The coupling 5 is equipped with a lead screw 4. The lead screw 4 extends to both sides of the slider 1 of the vertical slider 1. The two lead screws 4 cooperate with the vertical slider 1 to prevent the vertical slider 1 from rotating. The slider 101 of the vertical slider 1 is equipped with a threaded groove that cooperates with the lead screw 4. By rotating the lead screw 4, the vertical slider 1 is driven to move up and down.

[0035] Motor 11 and Motor 2 6 are preferably stepper motors or servo motors. Motor 11 and Motor 2 6 are used in conjunction with a control device, which is electrically connected to pressure sensors 3 located in the detection and correction structures on both sides. The control device reads the pressure parameters of the pressure sensors 3 on both sides and controls Motor 11 and Motor 2 6 to start respectively, thereby adjusting the position of the idler roller 13 and preventing the conveyor belt from deviating.

[0036] The control device is preferably a microcontroller, and an analog-to-digital converter chip can also be set to transmit the values ​​collected by the pressure sensor to the microcontroller.

[0037] The working process of this utility model device is as follows:

[0038] The pressure sensor 3 always keeps in contact with the idler roller 13 and collects the pressure values ​​on both sides of the idler roller 13. When the two sides of the conveyor belt are not level or the material transported in the conveyor belt is not evenly distributed and the distribution position deviation is large, the force on both ends of the idler roller 13 will be different. At this time, since the idler roller 13 is in contact with the pressure sensor 3, the different pressure values ​​at both ends of the idler roller relying on the shaft 14 will be detected by the sensor.

[0039] The collected pressure value is transmitted to the microcontroller through the analog-to-digital converter chip. The microcontroller calculates the pressure difference between the two sides of the idler roller and thus obtains the current conveyor belt skew status.

[0040] Based on the known conveyor belt skew, the microcontroller calculates the relative positions of the two ends of the idler roller support shaft 14, which will level the conveyor belt or offset the material distribution difference. This allows the microcontroller to control motor 11 and motor 6 to work with the horizontal and vertical sliders to adjust the two ends of the idler roller support shaft 14, thereby improving the conveyor belt skew.

[0041] The microcontroller controls the stepper motor to rotate through the motor drive circuit, so that the lead screw rotates through the coupling, thereby driving the slider connected to the lead screw to move.

[0042] By adjusting the positions of the lateral and longitudinal sliders on both sides of the idler, the spatial posture of the idler is adjusted, thereby bringing the conveyor belt back to its normal working position and eliminating conveyor belt skew. The pressure sensor on the idler bracket monitors the conveyor belt skew in real time, and determines whether the conveyor belt skew at this position meets the requirements by comparing the actual pressure difference with the ideal pressure difference.

[0043] If the pressure difference is within the error range, the stepper motor will keep each slider in the current position for continuous operation until the current operation is completed.

[0044] If the pressure difference does not meet the error range, the drive motor will adjust the correction intensity until the requirements are met and the operation is completed.

[0045] The system includes a lateral position adjustment slide rail mechanism mounted on a conveyor support frame, a longitudinal position adjustment mechanism fixed to a slider, and pressure sensors for monitoring conveyor belt skew. First, an embedded circuit reads the pressure value detected by the pressure sensor in contact with the idler roller. Then, the conveyor belt skew is calculated based on the pressure difference between the two pressure sensors. Next, a stepper motor drive module adjusts the lateral and longitudinal positions of the idler roller brackets. The two sides work together to eliminate the conveyor belt skew and return it to normal operation. The system monitors and provides real-time feedback on the position and pressure difference of the idler roller brackets on both sides, comparing it with the pressure difference under ideal working conditions. Ultimately, this achieves intelligent detection and correction of conveyor belt skew. This invention offers advantages such as simple structure, convenient operation, high safety and reliability, labor saving, and reduced health hazards.

[0046] The pressure sensor remains in contact with the idler roller to collect pressure values ​​on both sides of the roller. The collected pressure values ​​are then transmitted to the microcontroller via an analog-to-digital converter chip. The microcontroller calculates the pressure difference between the two sides of the idler roller, thereby determining the current conveyor belt skew status.

[0047] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A material conveyor belt skew detection and correction structure, characterized in that, The detection and correction structure is symmetrically arranged, with a roller installed between the two sides of the detection and correction structure. It includes a support frame, with the detection and correction structure located at both ends of the support frame. A transverse slider is slidably provided on both sides of the support frame, and a longitudinal slider is slidably provided on the transverse slider. The roller is installed on the longitudinal slider.

2. A material conveying belt deviation detection and correction structure according to claim 1, characterized in that, The support frame is fixedly provided with sliding frames on both sides, and the sliding frames are provided with guide rails. The horizontal slider is fixed on the guide rails.

3. A material conveying belt misalignment detection and correction structure according to claim 2, wherein The guide rails are at least two arranged side by side.

4. The material conveying belt misalignment detection and correction structure of claim 2, wherein, A motor is provided on the support frame outside the sliding frame. A coupling is provided on the output shaft of the motor, and a lead screw is provided on the coupling to pass through the transverse slider.

5. The material conveyor belt misalignment detection and correction structure of claim 1, wherein, A second motor is fixedly mounted on the horizontal slider, a second coupling is mounted on the output shaft of the second motor, and a second lead screw is mounted on the second coupling and extends into the vertical slider.

6. A material conveying belt misalignment detection and correction structure according to claim 5, wherein The motors are two motors arranged side by side.

7. The material conveyor belt misalignment detection and correction structure of claim 1, wherein, The longitudinal slider consists of a slider and a mounting frame. The mounting frame is fixedly installed on the top of the slider, and a roller bracket is rotatably provided inside the mounting frame.

8. A material conveying belt misalignment detection and correction structure according to claim 7, wherein Both the mounting frame and the roller bracket have a "U" shaped structure.

9. The material conveyor belt skew detection and correction structure according to claim 7, characterized in that, The idler roller includes an idler roller support shaft and a roller or roller sleeve located on the idler roller support shaft. Both ends of the idler roller support shaft are fixed inside the idler roller bracket, and a pressure sensor is provided between the idler roller support shaft and the idler roller bracket.

10. The material conveying belt misalignment detection and correction structure of claim 9, wherein, The idler roller has a symmetrical support axis structure with both sides curved upwards and the middle position lower than the two sides.

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