Abrasion-resistant lining type automatic deviation rectifying and distributing device for collecting funnel

Abstract

The invention discloses a collecting funnel wear-resistant lining type automatic deviation rectifying and distributing device, belongs to the technical field of mine and mineral processing production, and solves the problems of unbalance loading and deviation caused by deviation of a discharging point in multi-conveying-belt transportation and high maintenance cost of a wear-resistant lining plate. The device comprises a main body supporting and driving system (an integrated bracket, an air cylinder, a bracket and a jackscrew), a deviation monitoring and control system (a deviation sensor, a PLC (Programmable Logic Controller) control box and an electromagnetic valve) and a wear-resistant buffering system (a wear-resistant rubber buffering curtain), the deviation of the conveying belt is monitored in real time through the deviation sensor, the PLC control box drives the air cylinder to drive the support to move transversely, the angle of the buffer curtain is adjusted in combination with the jackscrew, a'monitoring-feedback-adjusting 'closed loop is formed, and dynamic deviation correction of a discharging point is achieved. The buffering curtain replaces a traditional metal lining plate, abrasion is reduced, and replacement is convenient. The device improves the stability of a transportation system, reduces the maintenance cost and adapts to severe working conditions of mines.

Description

Technical Field

[0001] This invention belongs to the field of mining and mineral processing technology, specifically relating to an automatic correction and distribution device with a wear-resistant inner lining for a collecting funnel. It is suitable for material collection and transportation scenarios with multiple conveyor belts in mining and mineral processing, and can realize dynamic correction of the feeding point and uniform distribution of materials, while reducing equipment wear and maintenance costs. Background Technology

[0002] In material transportation systems for mining and mineral processing, multi-conveyor belt material collection funnels are core equipment for transferring and collecting materials from multiple sources. They are widely used in processes such as ore crushing, screening, and conveying. Through their funnel structure, they concentrate materials from multiple conveyor belts and guide them to the next conveyor belt, ensuring continuous and efficient material transportation. However, existing technologies have the following key problems: Off-center feeding causes conveyor belt misalignment: Due to factors such as design flaws in the hopper structure, differences in material characteristics (particle size, moisture, flowability), uneven feed rate from the upper stage, and uneven impact force of the material, the material cannot accurately fall to the center of the lower stage conveyor belt, causing uneven loading. Mild uneven loading leads to wear and tear on the conveyor belt edges and spillage, increasing maintenance costs; severe uneven loading can cause the conveyor belt to jam or break, leading to unplanned shutdowns and seriously affecting production efficiency.

[0003] High maintenance costs of wear-resistant liners: Traditional collecting funnels use metal wear-resistant liners to protect the inner wall. Replacement is difficult and time-consuming after wear, posing safety risks and high maintenance costs. While existing technologies have improved the funnel structure or correction devices, they have not formed a closed-loop control system of "monitoring-feedback-adjustment," failing to fundamentally solve the problem of synergistic optimization between dynamic deviation at the feeding point and wear-resistant protection. There is an urgent need for innovative devices that combine automatic correction and wear resistance. Summary of the Invention

[0004] To address the problems of conveyor belt misalignment, high maintenance costs of wear-resistant liners, and lack of closed-loop control in existing technologies, the purpose of this invention is to provide an automatic deviation correction and material distribution device with a wear-resistant inner liner in a collecting funnel. Through the coordinated operation of mechanical structure and control system, it achieves dynamic deviation correction at the feeding point and uniform material distribution, while reducing wear on the inner wall of the funnel and the conveyor belt, and improving the stability of the material transportation system.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An automatic deviation-correcting fabric feeding device with a wear-resistant inner liner for collecting funnels includes a main support and drive system, a deviation monitoring and control system, and a wear-resistant buffer and fabric adjustment system. The main support and drive system includes an integrated bracket, a support frame, a cylinder, a top plate, a cylinder piston rod, a nut, and a set screw. The top plate is welded to the front and rear sides of the integrated bracket, and the top plate is hinged or fixedly connected to the cylinder piston rod. The cylinder is fixed to the support frame, and the support frame is welded to the outer wall of the collecting funnel. A guide rail structure is provided at the top of the support frame, which cooperates with the slider at the bottom of the integrated bracket to form a sliding guide mechanism. Nuts are symmetrically welded to both sides of the integrated bracket, and set screws are screwed into the nuts, penetrating the side wall of the integrated bracket and extending into the interior of the collecting funnel. The deviation monitoring and control system includes deviation sensors, a PLC control box, and a cylinder solenoid valve. The deviation sensors are symmetrically installed on both sides of the secondary conveyor belt via sensor brackets, and the deviation sensors are connected to the PLC... The control box is electrically connected, and the cylinder solenoid valve is connected to the cylinder and the high-pressure air source respectively through a pressure-resistant air duct. The PLC control box is connected to the cylinder solenoid valve through a control line. The wear-resistant buffer and fabric adjustment system includes a wear-resistant rubber buffer curtain and fixing screws. The wear-resistant rubber buffer curtain is installed on the inner wall of the collecting funnel by the fixing screws, and the inner side of the wear-resistant rubber buffer curtain is in close contact with the end of the top screw.

[0006] Preferably, the cylinder is a double-acting cylinder, and the double-acting cylinder forms an air circuit system with the cylinder solenoid valve through a pressure-resistant air pipe. The PLC control box can drive the air circuit system to realize the reciprocating motion of the double-acting cylinder.

[0007] Preferably, the wear-resistant rubber buffer curtain can change its curvature and tilt angle by adjusting the extension length of the top wire, and the wear-resistant rubber buffer curtain is made of highly wear-resistant and impact-resistant rubber material.

[0008] Preferably, the deviation sensor is a contact deviation switch, a non-contact photoelectric sensor, or a non-contact ultrasonic sensor.

[0009] Preferably, the guide rail structure at the top of the bracket and the slider at the bottom of the integrated bracket are precision-fitted structures, which can ensure the lateral displacement accuracy of the integrated bracket.

[0010] Preferably, the contact between the top wire and the wear-resistant rubber buffer curtain is surface contact or point contact, and the end of the top wire is provided with an anti-slip and wear-resistant layer.

[0011] Preferably, the thickness of the wear-resistant rubber buffer curtain is 1.5-2cm.

[0012] The beneficial effects of this invention are as follows: 1. By using a belt misalignment sensor for real-time monitoring, a PLC control box for intelligent processing, and a closed-loop control system for cylinder-driven displacement, the system dynamically corrects the material feeding point offset, eliminates the root cause of conveyor belt misalignment, and improves the stability of the transportation system.

[0013] 2. Wear-resistant rubber buffer curtains are used instead of traditional metal liners to absorb the impact energy of materials and reduce wear; the buffer curtains are fixed with screws, making replacement convenient and reducing maintenance costs by more than 50%.

[0014] 3. The top wire and buffer curtain work together to adjust the lateral displacement of the support frame, which can adapt to different material characteristics (particle size, humidity) and flow rate changes, and the fabric accuracy error is ≤2%.

[0015] 4. The integrated bracket and support rail slider mechanism ensures motion accuracy, the double-acting cylinder provides stable driving force, and the whole device is vibration-resistant, dust-resistant, and suitable for harsh working conditions in mines. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram illustrating the usage process of the present invention; In the diagram, 1-integrated bracket, 2-top plate, 3-cylinder piston rod, 4-cylinder, 5-bracket, 6-nut, 7-set screw, 8-sensor bracket, 9-deviation sensor, 10-PLC control box, 11-cylinder solenoid valve, 12-collecting funnel, 13-wear-resistant rubber buffer curtain, 14-secondary conveyor belt, 15-primary conveyor belt. Detailed Implementation

[0017] The embodiments of the present invention will be described in detail with reference to Figures 1 and 2, so that those skilled in the art can fully reproduce them: The present invention relates to a funnel-shaped wear-resistant liner-type automatic deviation correction fabric distribution device, comprising a main support and drive system, a deviation monitoring and control system, and a wear-resistant buffer and fabric adjustment system, the specific structure of which is as follows: 1. Main support and drive system The core is an integrated support 1, with top plates 2 welded to its front and rear sides. The top plates 2 are hinged or fixedly connected to the cylinder piston rod 3. The cylinder 4 is fixed on the bracket 5, and the bracket 5 is welded to the outer wall of the collecting funnel 12. The top of the bracket 5 is equipped with a guide rail, which cooperates with the bottom slider of the integrated support 1 to ensure the lateral displacement accuracy of the support. Nuts 6 are symmetrically arranged on both sides of the integrated support 1. The nuts 6 are screwed with set screws 7, which extend into the inside of the collecting funnel 12. The material path can be finely adjusted by adjusting the extension length.

[0018] 2. Deviation Monitoring and Control System Misalignment sensors 9 are installed on both sides of the secondary conveyor belt 14 via sensor brackets 8. The sensors are electrically connected to the PLC control box 10 to monitor the conveyor belt offset in real time. The cylinder solenoid valve 11 is connected to the cylinder 4 and the high-pressure air source through a pressure-resistant air duct. The PLC control box 10 can control the on / off of the solenoid valve and the air path switching according to the sensor signal, drive the cylinder to move the bracket, and realize automatic correction.

[0019] 3. Abrasion-resistant cushioning and fabric adjustment system The inner wall of the collecting funnel 12 is fixed with a wear-resistant rubber buffer curtain 13 by screws. The inner side of the buffer curtain is in close contact with the end of the top screw 7. The buffer curtain can absorb the impact of the material and reduce wear. At the same time, the curvature and tilt angle can be adjusted by the top screw, and the material can be evenly distributed in conjunction with the displacement of the support. Example

[0020] The component installation and connection relationships are as follows: The integrated bracket 1 has a top plate 2 welded to the front and rear. A double-acting cylinder 4 is fixed to a bracket 5, which is welded to the outer wall of the collecting funnel 12. The cylinder piston rod 3 is hinged to the top plate 2, and the top guide rail of the bracket 5 is installed in conjunction with the bottom slider of the integrated bracket 1. Nuts 6 are welded to both sides of the integrated bracket 1, and set screws 7 are screwed into the nuts 6, ensuring that the end of the set screws 7 can extend into the collecting funnel 12. Sensor brackets 8 are welded to both sides of the secondary conveyor belt 14, and misalignment sensors 9 (selectable contact misalignment switches or non-contact photoelectric sensors) are installed. The PLC control box 10 is installed in the nearby electrical control cabinet and is connected to the misalignment sensors 9 through signal lines. The cylinder solenoid valve 11 is installed near the cylinder and is connected to the left and right air holes of the cylinder 4 and the high-pressure air source through a pressure-resistant air duct. The PLC control box 10 is connected to the solenoid valve through control lines. The inner wall of the collecting funnel 12 is fixed with screws to a wear-resistant rubber buffer curtain 13 (thickness 1.5-2cm, high wear-resistant and impact-resistant rubber material), ensuring that the inner side of the buffer curtain is in close contact with the end of the set screws 7.

[0021] The work process is as follows: Normal monitoring status: Material from the two primary conveyor belts 15 falls through the collection funnel 12 to the secondary conveyor belt 14. The belt misalignment sensor 9 monitors the position of the conveyor belt in real time, and the PLC control box 10 periodically collects sensor signals at a sampling frequency of 10Hz.

[0022] Leftward deviation of the discharge point (rightward deviation of the conveyor belt) correction: When the leftward deviation of the discharge point causes the secondary conveyor belt 14 to deviate to the right and reach the threshold of the right-side deviation sensor 9, the PLC control box 10 sends a command to the cylinder solenoid valve 11 to switch the air path so that high-pressure gas enters the left cavity of the cylinder 4. The cylinder piston rod 3 extends to the right, driving the integrated bracket 1 to move to the right by 10-15mm. When the bracket moves to the right, the left top screw 7 pushes the left buffer curtain into the funnel and bends it towards the center. The right top screw 7 retracts to make the right buffer curtain stick to the inner wall of the funnel, forcibly changing the material path and causing the discharge point to move to the center of the secondary conveyor belt 14. The conveyor belt returns to the center.

[0023] Correction of rightward deviation of the feeding point (leftward deviation of the conveyor belt): When the rightward deviation of the feeding point causes the secondary conveyor belt 14 to deviate to the left and reach the threshold of the left deviation sensor 9, the PLC control box 10 controls the cylinder solenoid valve 11 to switch the air path. High-pressure gas enters the right cavity of the cylinder 4, and the cylinder piston rod 3 extends to the left, driving the integrated bracket 1 to move to the left. The right top screw 7 pushes the right buffer curtain into the funnel, and the left top screw 7 retracts outward, so that the feeding point moves to the left to the center of the conveyor belt, completing the correction.

[0024] Buffer curtain adjustment and replacement: For different materials, the curvature of the buffer curtain can be adjusted by manually rotating the top screw 7 - clockwise rotation increases the curvature (increases the material blocking force), and counterclockwise rotation decreases the curvature (suitable for low impact materials); when the buffer curtain is severely worn, turn off the feed, loosen the fixing screw, pull out the old buffer curtain, install the new buffer curtain and tighten it. The top screw 7 can assist in the initial positioning and fine adjustment of the new buffer curtain.

Claims

1. A funnel-shaped, wear-resistant liner-type automatic fabric correction device, characterized in that, The system includes a main support and drive system, a deviation monitoring and control system, and a wear-resistant buffer and fabric adjustment system. The main support and drive system includes an integrated bracket (1), a bracket (5), a cylinder (4), a top plate (2), a cylinder piston rod (3), a nut (6), and a set screw (7). The top plate (2) is welded to the front and rear sides of the integrated bracket (1). The top plate (2) is hinged or fixedly connected to the cylinder piston rod (3). The cylinder (4) is fixed on the bracket (5). The bracket (5) is welded to the outer wall of the collecting funnel (12). The top of the bracket (5) is provided with a guide rail structure, which cooperates with the bottom slider of the integrated bracket (1) to form a sliding guide mechanism. The nuts (6) are symmetrically welded to both sides of the integrated bracket (1). The set screw (7) is screwed into the nut (6). The set screw (7) penetrates the side wall of the integrated bracket (1) and extends into the inside of the collecting funnel (12). The deviation monitoring and control system includes a deviation sensor (9) and a PLC. The control box (10) and the cylinder solenoid valve (11) are included. The deviation sensor (9) is symmetrically installed on both sides of the secondary conveyor belt (14) through the sensor bracket (8). The deviation sensor (9) is electrically connected to the PLC control box (10). The cylinder solenoid valve (11) is connected to the cylinder (4) and the high-pressure air source through the pressure-resistant air pipe. The PLC control box (10) is connected to the cylinder solenoid valve (11) through the control line. The wear-resistant buffer and fabric adjustment system includes a wear-resistant rubber buffer curtain (13) and fixing screws. The wear-resistant rubber buffer curtain (13) is installed on the inner wall of the collecting funnel (12) through the fixing screws. The inner side of the wear-resistant rubber buffer curtain (13) is in close contact with the end of the top screw (7).

2. The automatic fabric correction device with a funnel-shaped wear-resistant liner as described in claim 1, characterized in that, The cylinder (4) is a double-acting cylinder. The double-acting cylinder forms an air circuit system with the cylinder solenoid valve (11) through a pressure-resistant air pipe. The PLC control box (10) can drive the air circuit system to realize the reciprocating motion of the double-acting cylinder.

3. The automatic fabric correction device with a collection funnel and wear-resistant inner liner as described in claim 1, characterized in that, The wear-resistant rubber buffer curtain (13) can change its curvature and tilt angle by adjusting the extension length of the top wire (7). The wear-resistant rubber buffer curtain (13) is made of highly wear-resistant and impact-resistant rubber material.

4. The automatic fabric correction device with a collection funnel and wear-resistant inner liner as described in claim 1, characterized in that, The deviation sensor (9) is a contact deviation switch, a non-contact photoelectric sensor, or a non-contact ultrasonic sensor.

5. The automatic fabric correction device with a collection funnel and wear-resistant inner liner as described in claim 1, characterized in that, The guide rail structure at the top of the bracket (5) and the slider at the bottom of the integrated bracket (1) are precision-fitted structures, which can ensure the lateral displacement accuracy of the integrated bracket (1).

6. The automatic fabric correction device with a funnel-shaped wear-resistant liner as described in claim 1, characterized in that, The contact between the top screw (7) and the wear-resistant rubber buffer curtain (13) is a surface contact or a point contact, and the end of the top screw (7) is provided with an anti-slip and wear-resistant layer.

7. The automatic fabric correction device with a collection funnel and wear-resistant inner liner according to claim 3, characterized in that, The thickness of the wear-resistant rubber buffer curtain (13) is 1.5-2cm.

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