Anti-deviation mechanism for conveying belt

Abstract

The utility model relates to the technical field of conveying belts, and discloses an anti-deviation mechanism for a conveying belt. The deviation prevention mechanism for the conveying belt comprises a detection mechanism body, an execution mechanism is arranged at the rear end of the detection mechanism body, an infrared reflection sensor is installed in the detection mechanism body, and a hydraulic push rod is installed at the bottom end of the execution mechanism. The infrared reflection sensor and the hydraulic push rod are arranged, the detection part and the execution part are included, the hydraulic push rod on the execution mechanism executes different actions according to different signals input by the infrared reflection sensor of the detection part, and automatic adjustment of the relative angle of the driven roller and the driving roller is achieved; the detection part adopts an infrared reflection sensor, and the relative position change of the infrared reflection sensor and the conveying belt main body is used for judging the deviation amount and the deviation direction of the conveying belt main body, and the deviation amount and the deviation direction are used as adjusting signals, so that the functions of automatic adjustment and automatic deviation prevention are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor belts, in particular to a conveyor belt anti-deviation mechanism. Background Art

[0002] Conveyor belts, also known as transport belts, are composite products of rubber, fiber, metal, or plastic and fabric used in conveyor belts to carry and transport materials. The existing anti-deviation methods generally achieve the conveyor belt's running by blocking.

[0003] The patent document of the prior art publication number CN216888715U provides a conveyor belt with an anti-deviation mechanism, including a conveyor frame, the left and right sides of the upper surface of the conveyor frame are rotatably connected to the front end and the back end of the conveyor roller a and the conveyor roller b respectively through connecting pieces, the front end of the conveyor roller a is fixedly connected to the back of the sprocket a through the connecting piece, and is fixedly connected to the lower surface of the two limit plates a through four supports of the same height, so that the two limit plates a are kept in the same horizontal state to limit the conveyor belt, thereby preventing the conveyor belt from deflecting during the conveying process, and at the same time, the four relative The electric push rods are simultaneously contracted, driving the two limit plates b to move closer to each other, which can correct and straighten the goods on the upper surface of the conveyor belt to prevent the goods from skewing. At the same time, the goods are limited to prevent the goods from being scattered and attached between the roller and the conveyor belt, causing damage to the conveyor belt, thereby extending the service life of the conveyor belt. However, the patent CN216888715U is passive in preventing deviation when in use and cannot be completely corrected. At the same time, this method causes greater damage to the belt, especially when the belt is running at high speed, the friction between the conveyor belt and the baffle will cause damage to the conveyor belt. For this reason, a conveyor belt anti-deviation mechanism is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to provide a conveyor belt anti-deviation mechanism to solve the problem that the current conveyor belt anti-deviation structure proposed in the above background technology is a passive anti-deviation structure and cannot be automatically corrected. At the same time, the setting of the baffle causes great damage to the belt, especially when the belt is running at high speed, the friction between the conveyor belt and the baffle may cause damage to the conveyor belt.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a conveyor belt anti-deviation mechanism, comprising a detection mechanism main body, an actuator is provided at the rear end of the detection mechanism main body, and an infrared reflection sensor is installed inside the detection mechanism main body, a hydraulic push rod is provided on the actuator, the bottom end of the hydraulic push rod is connected to the belt conveyor, and the output end of the hydraulic push rod is provided with a connecting piece, a driven roller is installed on the inner side of the belt conveyor, an active roller is provided on one side of the driven roller, and the conveyor belt main body is sleeved on the outer side of the driven roller, a second motor is installed on the inner wall of the detection mechanism main body, and a glass plate is provided at the bottom end of the detection mechanism main body, a rotating shaft is provided at the output end of the second motor, and a dust cleaning scraper is connected to the outer wall of the rotating shaft.

[0006] The actuator includes a first motor, a screw is provided at the output end of the first motor, a second oil circuit is provided on one side of the screw, and a first one-way valve is connected to the bottom end of the screw, a second one-way valve is installed on one side of the first one-way valve, an oil return channel is provided below the second one-way valve, an electromagnet push rod is provided on one side of the oil return channel, and a third oil circuit is opened at the bottom end of the oil return channel, a first oil circuit is opened on the other side of the oil return channel, an electromagnet block is provided on the outside of the electromagnet push rod, a low-pressure chamber is provided inside the hydraulic push rod, and a high-pressure chamber is provided on one side of the low-pressure chamber.

[0007] Preferably, one end of the driven roller is movably connected to the belt conveyor via a rotating shaft, and the other end of the driven roller is movably connected to the connecting member.

[0008] Preferably, the hydraulic push rod is fixedly mounted on the belt conveyor.

[0009] Preferably, the number of the infrared reflection sensors is four, and the dust cleaning scraper is movably connected to the second motor via a rotating shaft.

[0010] Preferably, the infrared reflection sensor is connected to the active roller via a data line, the first oil circuit to the second oil circuit and then to the third oil circuit is a first channel, and the third oil circuit to the first oil circuit is a second channel.

[0011] Preferably, the infrared reflection sensor is sealed and fixed inside the detection mechanism body, the first one-way valve is a one-way ball valve, and a slip ring is sleeved on the screw.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0013] The utility model includes a detection part and an execution part by arranging an infrared reflection sensor and a hydraulic push rod. According to different signals input by the infrared reflection sensor of the detection part, the hydraulic push rod on the execution mechanism respectively performs different actions to realize automatic adjustment of the relative angle between the driven roller and the active roller, thereby indirectly adjusting the deviation of the conveyor belt. The inspection part adopts an infrared reflection sensor. The relative position of the infrared reflection sensor and the conveyor belt body changes to determine the deviation amount of the conveyor belt body, which is used as an adjustment signal, thereby realizing automatic adjustment and automatic anti-deviation functions.

[0014] The utility model provides a low-pressure chamber, a high-pressure chamber, a screw and a hydraulic push rod, and presses the oil in the low-pressure chamber into the high-pressure chamber through the first oil circuit, the second oil circuit and the third oil circuit, thereby realizing the first force amplification. The cross-sectional size of the screw is much smaller than that of the hydraulic push rod, and the principle of the communicating vessel is used to realize the second-stage force amplification. Ultimately, a smaller force can be used to push a larger thrust, and the thrust efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the appearance of the actuator of the utility model;

[0017] Figure 3 This is a schematic diagram of the connector of the utility model;

[0018] Figure 4 This is a schematic diagram of the hydraulic push rod of the utility model;

[0019] Figure 5 This is a schematic diagram of the main body of the detection mechanism of the utility model;

[0020] Figure 6 This is a schematic diagram of the infrared reflection sensor of the utility model;

[0021] Figure 7 This is a schematic cross-sectional view of the actuator structure of the utility model.

[0022] Among them: 1. Detection mechanism body; 2. Belt conveyor; 3. Driven roller; 4. Active roller; 5. Conveyor belt body; 6. Actuator; 601. First motor; 602. Screw; 603. First one-way valve; 604. Second one-way valve; 605. First oil circuit; 606. Second oil circuit; 607. Third oil circuit; 608. Low-pressure chamber; 609. High-pressure chamber; 610. Electromagnet block; 611. Electromagnet push rod; 612. Oil return channel; 7. Hydraulic push rod; 8. Connector; 9. Infrared reflection sensor; 10. Glass plate; 11. Second motor; 12. Rotating shaft; 13. Dust removal scraper. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-6A conveyor belt anti-deviation mechanism includes a detection mechanism main body 1, an actuator 6 is provided at the rear end of the detection mechanism main body 1, and an infrared reflection sensor 9 is installed inside the detection mechanism main body 1, a hydraulic push rod 7 is provided on the actuator 6, the bottom end of the hydraulic push rod 7 is connected to the belt conveyor 2, and the output end of the hydraulic push rod 7 is provided with a connecting piece 8, a driven roller 3 is installed on the inner side of the belt conveyor 2, an active roller 4 is provided on one side of the driven roller 3, and the outer side of the driven roller 3 is sleeved with the conveyor belt main body 5, a second motor 11 is installed on the inner wall of the detection mechanism main body 1, and a glass plate 10 is provided at the bottom end of the detection mechanism main body 1, a rotating shaft 12 is provided at the output end of the second motor 11, and the outer wall of the rotating shaft 12 is connected to a dust cleaning scraper 13, one end of the driven roller 3 is movably connected to the belt conveyor 2 through a rotating shaft, and the other end of the driven roller 3 is movably connected to the connecting piece 8, the hydraulic push rod 7 is fixedly installed to the belt conveyor 2, the number of infrared reflection sensors 9 is four, the cleaning scraper 13 is movably connected to the second motor 11 through the rotating shaft 12, the infrared reflection sensor 9 is connected to the active roller 4 through a data line, the first oil circuit 605 to the second oil circuit 606 and then to the third oil circuit 607 is the first channel, and the third oil circuit 607 to the first oil circuit 605 is the second channel, the infrared reflection sensor 9 is sealed and fixed inside the detection mechanism body 1, the first one-way valve 603 is a one-way ball valve, a slip ring is sleeved on the screw 602, and four infrared reflection sensors 9 are fixed to the detection mechanism body 1. The inside of the mechanism body 1 and on one side of the conveyor belt body 5, the infrared reflection sensor 9 detects the position of the conveyor belt body 5 below through the glass plate 10, and measures the relative position of the conveyor belt body 5 and the infrared reflection sensor 9. Two groups of infrared reflection sensors 9 are blocked by the conveyor belt body 5, and two groups of infrared reflection sensors 9 are not blocked. This position is the standard position during detection. When the position of the conveyor belt body 5 changes, there will be 4 groups of infrared reflection sensors 9 in different states, namely, blocked 1 pair, blocked 2 pairs, blocked 3 pairs, and blocked 4 pairs. Different positions reflect different deviation amounts and deviation directions of the conveyor belt body 5. According to the switch status of each group of infrared reflection sensors 9, the data is transmitted through the single chip. After the machine is processed, different action modes are given to the actuator 6 through analysis to control the operation of the hydraulic push rod 7, thereby adjusting the front and rear positions of the driven roller 3, and then adjusting the relative angle between the driven roller 3 and the active roller 4 to correct the deviation of the belt. In actual use, the hydraulic push rod 7 can be movably connected with the active roller 3 or the driven roller 4 through the connecting piece 8, and the purpose of preventing the deviation can be achieved by pushing the active roller 3 or the driven roller 4 to adjust the position. After the glass plate 10 has been used for a period of time, the second motor 11 is controlled to operate. After the second motor 11 is running, it drives the cleaning scraper 13 to rotate through the rotating shaft 12 to wipe and clean the outer surface of the glass plate 10, keep the glass plate 10 clean, and avoid false alarms caused by foreign objects blocking the infrared reflection sensor 9.

[0025] See also Figure 7A conveyor belt anti-deviation mechanism, the actuator 6 includes a first motor 601, a screw 602 is provided at the output end of the first motor 601, a second oil circuit 606 is provided on one side of the screw 602, and a first one-way valve 603 is connected to the bottom end of the screw 602, a second one-way valve 604 is installed on one side of the first one-way valve 603, an oil return channel 612 is provided below the second one-way valve 604, an electromagnet push rod 611 is provided on one side of the oil return channel 612, and a third oil circuit 607 is opened at the bottom end of the oil return channel 612, a first oil circuit 605 is opened on the other side of the oil return channel 612, and an electromagnet block is provided on the outside of the electromagnet push rod 611 610, a low-pressure chamber 608 is provided inside the hydraulic push rod 7, and a high-pressure chamber 609 is provided on one side of the low-pressure chamber 608. When the first motor 601 runs, the forward and reverse rotation of the screw 602 drives the slip ring to move forward and backward. When the slip ring moves, the hydraulic oil in the low-pressure chamber 608 enters the high-pressure chamber 609 through the first channel: the first oil circuit 605, the second oil circuit 606 and the third oil circuit 607. The hydraulic oil in the high-pressure chamber 609 pushes the output end of the hydraulic push rod 7 to extend, which can make the hydraulic push rod 7 drive the driven roller 3 to move forward and backward through the connecting piece 8. When the driven roller 3 needs to move backward, due to the interception of the second one-way valve 604, the actuator 6 will When the electromagnet block 610 is energized, the electromagnet push rod 611 in the electromagnet block 610 is attracted by the magnetic force of the coil, so that the second channel of the high-pressure chamber 609 and the low-pressure chamber 608 will be opened, and the oil in the high-pressure chamber 609 will flow back into the low-pressure chamber 608. The outflow of hydraulic oil will reduce the volume of the high-pressure chamber 609, and the hydraulic push rod 7 connected to the high-pressure chamber 609 will retract, and the hydraulic push rod 7 will drive the driven roller 3 to move backward. The cooperation of the first motor 601 and the electromagnet block 610 can realize the telescopic movement of the hydraulic push rod 7. This telescopic movement can adjust the angle between the active roller 3 and the driven roller 4. By adjusting the relative angle of the two rollers, the main conveyor belt can be adjusted. The position of the body 5 is set, and the oil in the low-pressure chamber 608 is pressed into the high-pressure chamber 609 to achieve the first force amplification. The cross-sectional size of the screw 602 is much smaller than that of the hydraulic push rod 7. The principle of the communicating vessel is used to achieve the second-level force amplification. Ultimately, a smaller force can be used to push a larger thrust. In normal conditions, the electromagnet push rod 611 blocks the oil return channel 612. When the electromagnet block 610 is energized, the electromagnet push rod 611 will retract due to the suction force of the coil, and the blocked oil return channel 612 will be opened. The tension of the conveyor belt body 5 compresses the hydraulic push rod 7, so that the oil in the high-pressure chamber 609 can be pressed back into the low-pressure chamber 608.

[0026] When in use, four infrared reflection sensors 9 are fixed inside the detection mechanism body 1 and are located on one side of the conveyor belt body 5. The infrared reflection sensors 9 detect the position of the conveyor belt body 5 below through the glass plate 10, and measure the relative position of the conveyor belt body 5 and the infrared reflection sensors 9. Two groups of infrared reflection sensors 9 are blocked by the conveyor belt body 5, and two groups of infrared reflection sensors 9 are not blocked. This position is the standard position during detection. When the position of the conveyor belt body 5 changes, four groups of infrared reflection sensors 9 will appear in different states, namely, one pair is blocked, two pairs are blocked, three pairs are blocked, and four pairs are blocked. Different positions reflect different deviation amounts and deviation directions of the conveyor belt body 5. According to each group of infrared reflection sensors 9 The switch state, after the data is processed by the single chip microcomputer, is analyzed and given different action modes to the actuator 6 to control the operation of the hydraulic push rod 7, thereby adjusting the front and rear positions of the driven roller 3, and then adjusting the relative angle between the driven roller 3 and the active roller 4 to correct the deviation of the belt. In actual use, the hydraulic push rod 7 can be movably connected with the active roller 3 or the driven roller 4 through the connecting piece 8, and the adjustment position of the active roller 3 or the driven roller 4 can achieve the purpose of preventing deviation. After the glass plate 10 has been used for a period of time, the second motor 11 is controlled to operate. After the second motor 11 is running, it drives the cleaning scraper 13 to rotate through the rotating shaft 12 to wipe and clean the outer surface of the glass plate 10, keep the glass plate 10 clean, and avoid foreign matter blocking the infrared reflection sensor 9 from malfunctioning. The first motor 601 is running, and the forward and reverse rotation of the screw 602 is used to drive the slip ring to move forward and backward. When the slip ring moves, the hydraulic oil in the low-pressure chamber 608 enters the high-pressure chamber 609 through the first channel: the first oil channel 605, the second oil channel 606 and the third oil channel 607. The hydraulic oil in the high-pressure chamber 609 pushes the output end of the hydraulic push rod 7 to extend, which can drive the driven roller 3 to move forward and backward through the connecting piece 8. When the driven roller 3 needs to move backward, the actuator 6 will energize the electromagnet block 610, and the electromagnet push rod 611 in the electromagnet block 610 will be attracted by the magnetic force of the coil, so that the second channel between the high-pressure chamber 609 and the low-pressure chamber 608 will be opened, and the oil in the high-pressure chamber 609 will flow back to the low-pressure chamber 608. The outflow of oil will reduce the volume of the high-pressure chamber 609, and the hydraulic push rod 7 connected to the high-pressure chamber 609 will retract. The hydraulic push rod 7 drives the driven roller 3 to move backward. The cooperation of the first motor 601 and the electromagnet block 610 can realize the telescopic movement of the hydraulic push rod 7. This telescopic movement can adjust the angle between the active roller 3 and the driven roller 4. By adjusting the relative angle of the two rollers, the position of the conveyor belt body 5 can be adjusted, and the oil in the low-pressure chamber 608 is pressed into the high-pressure chamber 609 to achieve the first force amplification. The cross-sectional size of the screw 602 is much smaller than that of the hydraulic push rod 7. The principle of the communicating vessel is used to achieve the second level of force amplification. Finally, a smaller force can be used to push a larger thrust. Under normal circumstances, the electromagnet push rod 611 blocks the oil return channel 612.When the electromagnet block 610 is energized, the electromagnet push rod 611 will retract due to the suction force of the coil, and the blocked oil return channel 612 will be opened. The tension of the conveyor belt body 5 will press the hydraulic push rod 7, and the oil in the high-pressure chamber 609 can be pressed back into the low-pressure chamber 608.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit thereof, and the scope is defined by the appended claims and their equivalents.

Claims

1. A conveyor belt anti-deviation mechanism, comprising a detection mechanism body (1), characterized in that: The rear end of the detection mechanism body (1) is provided with an actuator (6), and an infrared reflection sensor (9) is installed inside the detection mechanism body (1), a hydraulic push rod (7) is provided on the actuator (6), the bottom end of the hydraulic push rod (7) is connected to the belt conveyor (2), and the output end of the hydraulic push rod (7) is provided with a connecting piece (8), a driven roller (3) is installed on the inner side of the belt conveyor (2), a driving roller (4) is provided on one side of the driven roller (3), and the outer side of the driven roller (3) is sleeved with the conveyor belt body (5), a second motor (11) is installed on the inner wall of the detection mechanism body (1), and a glass plate (10) is provided at the bottom end of the detection mechanism body (1), a rotating shaft (12) is provided at the output end of the second motor (11), and the outer wall of the rotating shaft (12) is connected to a dust cleaning scraper (13); The actuator (6) comprises a first motor (601), wherein the output end of the first motor (601) is provided with a screw (602), a second oil circuit (606) is provided on one side of the screw (602), and a first one-way valve (603) is connected to the bottom end of the screw (602), a second one-way valve (604) is installed on one side of the first one-way valve (603), an oil return channel (612) is provided below the second one-way valve (604), an electromagnet push rod (611) is provided on one side of the oil return channel (612), and a third oil circuit (607) is provided at the bottom end of the oil return channel (612), a first oil circuit (605) is provided on the other side of the oil return channel (612), an electromagnet block (610) is provided on the outside of the electromagnet push rod (611), a low-pressure chamber (608) is provided inside the hydraulic push rod (7), and a high-pressure chamber (609) is provided on one side of the low-pressure chamber (608).

2. The conveyor belt anti-deviation mechanism according to claim 1, characterized in that: One end of the driven roller (3) is movably connected to the belt conveyor (2) via a rotating shaft, and the other end of the driven roller (3) is movably connected to the connecting member (8).

3. The conveyor belt anti-deviation mechanism according to claim 1, characterized in that: The hydraulic push rod (7) is fixedly mounted on the belt conveyor (2).

4. The conveyor belt anti-deviation mechanism according to claim 1, characterized in that: The number of the infrared reflection sensors (9) is four, and the dust cleaning scraper (13) is movably connected to the second motor (11) via a rotating shaft (12).

5. The conveyor belt anti-deviation mechanism according to claim 1, characterized in that: The infrared reflection sensor (9) is connected to the active roller (4) via a data line; the first oil circuit (605) to the second oil circuit (606) and then to the third oil circuit (607) is a first channel, and the third oil circuit (607) to the first oil circuit (605) is a second channel.

6. The conveyor belt anti-deviation mechanism according to claim 1, characterized in that: The infrared reflection sensor (9) is sealed and fixed inside the detection mechanism body (1); the first one-way valve (603) is a one-way ball valve; and a slip ring is sleeved on the screw (602).

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