A sludge composting distributor corner measuring control device

Abstract

The utility model relates to a sludge compost cloth feeder corner measurement control device, including fixed base and belt conveyor, and belt conveyor is rotatedly connected with fixed base through pivot, and pivot is provided with drive mechanism, and drive mechanism drives pivot rotation, and pivot rotation drives belt conveyor rotation, and pivot is provided with hoop, and the hoop includes A department and B department who set up oppositely, and the outside of B department is provided with two horn support arms symmetrically, and the horn support arm is provided with permanent magnet in, and the two permanent magnets are provided with hall sensor between, and hall sensor is fixed with base, and the setting position of hall sensor and the center of pivot are located on same straight line, and the output end of hall sensor is connected the input end of drive mechanism, the utility model discloses through the hoop and is fixed with the horn support arm of permanent magnet of pivot, and when pivot rotates, the distance between hall sensor and permanent magnet changes, thereby the current reaction rotating angle of hall sensor output changes, realizes rotation angle detection.

Description

Technical Field

[0001] This utility model relates to the field of cloth feeding machine rotation control, specifically to a sludge composting cloth feeding machine rotation angle measurement and control device. Background Technology

[0002] In the field of sludge composting, the feeding machine is one of the core pieces of equipment, and its process performance and operating parameters directly determine the stability of the production process and the quality of the product. This equipment is a left-right rotating belt conveyor, mainly composed of a fixed base and a belt conveyor rotating around a shaft (e.g., Figure 5 As shown in the figure, materials are conveyed by a belt, and the material is evenly distributed within a specified range by means of left and right rotation and positioning functions.

[0003] Currently, the rotational positioning of belt conveyors is mainly achieved in two ways: one is by installing four proximity switches on the base, which work in conjunction with the metal induction plates on the belt conveyor to complete the positioning of four fixed positions; the other is by using encoders for positioning. However, in the high-temperature, high-humidity, and highly corrosive environment of sludge composting workshops, the rotating shafts of encoders and mechanical position switches are prone to accelerated corrosion, and neither can adapt to such harsh working conditions.

[0004] Therefore, there is an urgent need for a belt conveyor rotation angle detection device that can operate in high temperature, high humidity, and high corrosion environments, providing a hardware foundation for the rotation positioning of belt conveyors. Summary of the Invention

[0005] To address the problem that existing angle detection equipment cannot operate for extended periods in high-temperature, high-humidity, and highly corrosive environments, this invention proposes an angle measurement and control device for a sludge composting feeding machine. A ram's horn-shaped support arm with a permanent magnet is fixed to the rotating shaft via a clamp. As the shaft rotates, the distance between the Hall sensor and the permanent magnet changes, resulting in a voltage change on the output side that varies according to the angle of the belt conveyor. Since the voltage change is linearly related to the rotation angle, the corresponding rotation angle can be calculated.

[0006] To achieve the above objectives, this utility model proposes a sludge composting feeding machine rotation angle measurement and control device, including a fixed base and a belt conveyor. The belt conveyor is rotatably connected to the fixed base via a rotating shaft. The rotating shaft is equipped with a drive mechanism, which drives the rotating shaft to rotate, and the rotating shaft drives the belt conveyor to rotate. A clamp is provided on the rotating shaft, and the clamp includes an A part and a B part arranged opposite to each other. Two ram's horn support arms are symmetrically arranged on the outer side of the B part, and a permanent magnet is provided inside the ram's horn support arms. A Hall sensor is disposed between the two permanent magnets. The Hall sensor is fixed to the base, and the position of the Hall sensor is on the same straight line as the center of the rotating shaft. The output of the Hall sensor is connected to the input of the drive mechanism.

[0007] Furthermore, both parts A and B are semi-circular ring structures made of PVC material. Both parts A and B have flanges at their edges, and through holes are provided on the flanges. Parts A and B are connected by bolts and clamped to fix the rotating shaft.

[0008] The clamp is made of PVC material, with a semi-circular ring A and B forming a clamp that combines corrosion resistance and structural strength, making it suitable for the harsh environment of sludge composting. The rotating shaft is clamped and fixed by flange and bolt connection, which is convenient for installation and disassembly and can adapt to rotating shafts of different diameters, enhancing the versatility and installation stability of the device.

[0009] Furthermore, the ram's horn arm is a hollow, elongated structure made of PVC material, and a permanent magnet is sealed inside the ram's horn arm. The ram's horn support arm and section B are an integrated structure.

[0010] The hollow horn-shaped support arm made of PVC is not only lightweight and corrosion-resistant, but also provides a sealed protection for the internal permanent magnet, preventing it from being demagnetized or damaged by high temperature and high humidity environments. The integrated structure design reduces assembly gaps, ensures the positional stability of the magnet when it rotates synchronously with the shaft, and improves the accuracy of angle measurement.

[0011] Furthermore, the N poles of the two permanent magnets are positioned close to each other.

[0012] Two permanent magnets with their N poles facing each other can form a zero-point reference with magnetic field cancellation at the middle position. When the shaft rotates, the magnetic field offset is linearly related to the rotation angle, providing a stable physical reference for accurate angle conversion and improving the linearity and reliability of the measurement.

[0013] Furthermore, the drive mechanism includes a PLC controller, a frequency converter, and a motor, wherein the input terminal of the PLC controller is connected to the output terminal of the Hall sensor; The PLC controller communicates with the frequency converter. The motor is connected to the power supply through a frequency converter to form a circuit, and the output shaft of the motor is connected to the rotating shaft.

[0014] By receiving signals from Hall sensors through a PLC controller and combining them with a frequency converter to regulate the motor speed and direction, a closed-loop control circuit is formed. The belt conveyor rotation state can be dynamically adjusted according to the real-time angle signal to achieve precise positioning at any angle. Compared with traditional mechanical control, it has a faster response speed, higher positioning accuracy, and is easy to expand control functions through program settings.

[0015] Furthermore, an included angle α is provided between the opposite sides of the two ram's horn support arms, the included angle α being 25°, and the two ram's horn support arms rotating within a range of ±12° with the pivot.

[0016] It ensures that the magnet is always within the effective sensing range of the Hall sensor when the belt conveyor is rotating, preventing the magnetic field signal from exceeding the linear range, while also reserving a safety margin to prevent mechanical collisions, thus balancing the measurement range and equipment safety.

[0017] The beneficial effects of this utility model through the above technical solution are as follows: This invention forms a non-contact angle measurement structure by setting a clamp with a ram's horn support arm and a built-in permanent magnet on the rotating shaft and cooperating with a Hall sensor fixed to the base. It uses changes in magnetic field to realize real-time monitoring of the rotation angle of the belt conveyor. At the same time, the Hall sensor is directly linked to the drive mechanism, which can quickly feed back angle signals to accurately control the rotation. This solves the problems of traditional contact measurement being prone to corrosion and having a short lifespan in harsh environments, and improves the reliability and control accuracy of the device. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of the sludge composting spreading machine angle measurement and control device of this utility model; Figure 2 This is the second schematic diagram of the structure of the sludge composting spreading machine angle measurement and control device of this utility model; Figure 3 This is a circuit diagram of a sludge composting spreader angle measurement and control device according to the present invention; Figure 4 This is a schematic diagram of the angle measurement and control device for a sludge composting spreading machine according to this utility model; Figure 5 This is a diagram of existing technology.

[0019] The reference numerals are as follows: 1 is the base, 2 is the belt conveyor, 3 is the rotating shaft, 4 is part A, 5 is part B, 6 is the ram's horn support arm, 7 is the permanent magnet, 8 is the Hall sensor, 9 is the PLC controller, 10 is the frequency converter, and 11 is the motor. Detailed Implementation

[0020] Example 1 like Figure 1-5As shown, a sludge composting feeder angle measurement and control device includes a fixed base 1 and a belt conveyor 2. The belt conveyor 2 is rotatably connected to the fixed base 1 via a rotating shaft 3. The rotating shaft 3 is equipped with a drive mechanism, which drives the rotating shaft 3 to rotate, and the rotation of the rotating shaft 3 drives the belt conveyor 2 to rotate. A clamp is provided on the rotating shaft 3. The clamp includes an A part 4 and a B part 5 arranged opposite to each other. Two ram's horn support arms 6 are symmetrically arranged on the outer side of the B part 5. A permanent magnet 7 is provided inside the ram's horn support arm 6. A Hall sensor 8 is disposed between the two permanent magnets 7. The Hall sensor 8 is fixed to the base 1, and the position of the Hall sensor 8 is on the same straight line as the center of the rotating shaft 3. The output of Hall sensor 8 is connected to the input of the drive mechanism.

[0021] Both A part 4 and B part 5 are semi-circular ring structures made of PVC material. Both A part 4 and B part 5 have flanges at their edges, and through holes are provided on the flanges. A part 4 and B part 5 are connected by bolts and clamped to the rotating shaft 3 for fixation.

[0022] The ram's horn support arm 6 is a hollow, long strip structure made of PVC material, and a permanent magnet 7 is sealed inside the ram's horn support arm 6. The ram's horn support arm 6 and part B 5 are an integrated structure.

[0023] The N poles of the two permanent magnets 7 are positioned close to each other.

[0024] The drive mechanism includes a PLC controller 9, a frequency converter 10, and a motor 11. The input terminal of the PLC controller 9 is connected to the output terminal of the Hall sensor 8. PLC controller 9 is connected to frequency converter 10 via communication. The motor 11 is connected to the power supply through the frequency converter 10 to form a circuit, and the output shaft of the motor 11 is connected to the rotating shaft 3.

[0025] An included angle α is provided between the opposite sides of the two ram's horn support arms 6, the included angle α being 25°, and the two ram's horn support arms 6 rotating with the rotating shaft 3 within a range of ±12°.

[0026] In this embodiment, the Hall sensor 8 uses an SS49E module, and the output voltage is 2.5V when powered by 5V.

[0027] When the device is started, the motor 11 is connected to the power supply through the frequency converter 10. Under the control of the PLC controller 9, the motor 11 drives the rotating shaft 3 to rotate, which in turn drives the belt conveyor 2 to rotate around the base 1. At this time, the clamp (part A 4 and part B 5 are clamped and fixed on the rotating shaft 3) rotates synchronously with the rotating shaft 3, and the two ram's horn support arms 6 integrated with part B 5 and the internally sealed permanent magnet 7 rotate synchronously.

[0028] like Figure 1 and 4 As shown, because the N poles of the two permanent magnets 7 are positioned close to each other, in the initial state, the Hall sensor 8 (SS49E module, 5V power supply) is located between the two magnets, outputting a 2.5V reference voltage. This signal is transmitted to the PLC controller 9 as a zero-position reference. When the belt conveyor 2 rotates to the left (e.g., ... Figure 4 (b) The rotating shaft 3 drives the ram's horn arm 6 to shift to the left, and the magnetic field at the Hall sensor 8 is enhanced due to the proximity of the left magnet, resulting in an output voltage below 2.5V; when the belt conveyor 2 rotates to the right (e.g. Figure 4 (a) The magnet on the right side is close to the Hall sensor 8, and the magnetic field is enhanced, causing the output voltage to be higher than 2.5V.

[0029] Hall sensor 8 continuously transmits real-time voltage signals to PLC controller 9. The controller calculates the real-time rotation angle of belt conveyor 2 based on the voltage offset (the difference from 2.5V) and a preset linear correspondence (by testing to correlate angle values ​​with voltage values). (Because the angle of the ram's horn support arm 6 is 25°, the rotation range is limited to ±12° to ensure the magnetic field remains within the sensor's effective sensing range). After comparing the real-time rotation angle with the target rotation angle, PLC controller 9 sends control commands to frequency converter 10. By adjusting the speed and direction of motor 11, precise positioning and rotation control of belt conveyor 2 are achieved, ultimately resulting in the uniform distribution of materials within a specified range.

[0030] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A sludge composting feeder rotation angle measurement and control device, comprising a fixed base (1) and a belt conveyor (2), wherein the belt conveyor (2) is rotatably connected to the fixed base (1) via a rotating shaft (3), the rotating shaft (3) is provided with a drive mechanism, the drive mechanism drives the rotating shaft (3) to rotate, and the rotation of the rotating shaft (3) drives the belt conveyor (2) to rotate, characterized in that, The rotating shaft (3) is provided with a clamp, which includes an A part (4) and a B part (5) arranged opposite to each other. Two ram's horn arms (6) are symmetrically arranged on the outer side of the B part (5), and a permanent magnet (7) is provided inside the ram's horn arms (6). A Hall sensor (8) is provided between the two permanent magnets (7). The Hall sensor (8) is fixed to the base (1). The position of the Hall sensor (8) is on the same straight line as the center of the rotating shaft (3). The output of the Hall sensor (8) is connected to the input of the drive mechanism.

2. The sludge composting spreader angle measurement and control device according to claim 1, characterized in that, Both A (4) and B (5) are semi-circular ring structures made of PVC material. Both A (4) and B (5) have flanges at their edges, and through holes are provided on the flanges. A (4) and B (5) are connected by bolts and clamped to the rotating shaft (3) for fixation.

3. The sludge composting spreader angle measurement and control device according to claim 1, characterized in that, The ram's horn support arm (6) is a hollow strip structure made of PVC material, and a permanent magnet (7) is sealed inside the ram's horn support arm (6). The ram's horn arm (6) and part B (5) are an integrated structure.

4. The sludge composting spreader angle measurement and control device according to claim 1, characterized in that, The N poles of the two permanent magnets (7) are positioned close to each other.

5. The sludge composting spreader angle measurement and control device according to claim 1, characterized in that, The drive mechanism includes a PLC controller (9), a frequency converter (10), and a motor (11), wherein the input terminal of the PLC controller (9) is connected to the output terminal of the Hall sensor (8); The PLC controller (9) is connected to the frequency converter (10) for communication. The motor (11) is connected to the power supply through the frequency converter (10) to form a circuit, and the output shaft of the motor (11) is connected to the rotating shaft (3).

6. The sludge composting spreader angle measurement and control device according to claim 1, characterized in that, An included angle α is provided between the opposite sides of the two ram's horn support arms (6), the included angle α is 25°, and the two ram's horn support arms (6) rotate within a range of ±12° with the rotating shaft (3).

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