A remote control obstacle avoidance device suitable for electric monorail conveyor

Abstract

The present invention discloses a remote control obstacle avoidance device suitable for an electric monorail transporter, which belongs to the field of monorail transporters and includes a head box, a plurality of groups of upper rollers are installed at the lower end of the head box, a track is laid below the upper rollers, a lower roller is meshed and connected below the track, a motor is arranged on one side of the lower roller, and the motor is used to drive the lower roller to rotate; an adjustment component is connected between the lower roller and the head box, and the adjustment component is used to adjust the spacing between the upper roller and the lower roller. It can be achieved that when the head box is moving forward, for a relatively large or difficult to push foreign object, the controller will cut off the power supply of the motor to prevent the motor from being damaged due to overload, thereby ensuring the safe operation of the equipment; for light and small objects, the head box directly moves forward, effectively avoiding the interference of these light and small objects with the normal transportation process of the monorail transporter, reducing unnecessary downtime, and improving transportation efficiency.

Description

Technical Field

[0001] The invention relates to the field of monorail conveyors, and more particularly to a remotely controlled obstacle avoidance device suitable for an electric monorail conveyor. Background Art

[0002] Monorail conveyors can lay tracks arbitrarily according to the complex terrain of the forest, such as hills and mountains, without the need to cut down a large number of trees, solving the problem of transporting forest wood. The monorail vehicle is driven by gasoline or an electric motor, and the gear rack is engaged to achieve the advance and retreat of the conveyor. Support rods are installed at certain intervals on the track to support the track. The track can be laid according to the terrain, and the start and stop of the conveyor can be controlled at will.

[0003] Monorail conveyors have good adaptability in hilly orchards due to their advantages such as energy saving and environmental protection, large load capacity, strong climbing performance, and good economy. They can not only complete agricultural transportation tasks in orchard operations, but also be used as a carrier for spray-related equipment for irrigation such as fertilization and pesticide spraying. They are widely used in mountain orchards in southern China. However, during the operation of monorail conveyors, they are affected by the terrain and landforms, and there are many obstacles such as nearby fruit farmers, branches, leaves, weeds, and stones that have not been cleaned up in time. The tracks are laid along mountain roads, and the monorail conveyors cannot monitor the obstacles in front of the conveyor in real time during remote control operation, resulting in the monorail conveyor being unable to stop in a timely, effective, and safe manner. It is easy to collide, causing damage to the control module or burning of the motor, causing safety accidents and affecting transportation efficiency.

[0004] In order to solve this problem in the prior art, an ultrasonic sensor is generally installed on the monorail conveyor to detect whether there are foreign objects in the forward direction of the monorail conveyor, so as to avoid the problem of collision of the monorail conveyor during transportation. However, the ultrasonic sensor is too sensitive. When leaves and weeds appear in the forward direction of the monorail conveyor, they will also be identified as foreign objects. The controller on the monorail conveyor controls the monorail conveyor to stop moving forward, but leaves and weeds often do not hinder the normal transportation of the monorail conveyor. This will cause the conveyor to stop unnecessary, affecting the transportation efficiency of the conveyor. The existing monorail conveyor obstacle avoidance device has certain limitations. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a remote-controlled obstacle avoidance device suitable for an electric monorail conveyor, which can realize that when the front box is moving forward, for larger or difficult-to-push foreign objects, the controller will cut off the power supply of the motor to prevent the motor from being damaged due to overload, thereby ensuring the safe operation of the equipment. For light and small objects, the front box will move forward directly, effectively avoiding these light and small objects from interfering with the normal transportation process of the monorail conveyor, reducing unnecessary downtime, and improving transportation efficiency.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] The remote control obstacle avoidance device for an electric monorail transporter described in this embodiment comprises a head box, a plurality of sets of upper rollers are installed at the lower end of the head box, a track is laid below the upper rollers, a lower roller is meshedly connected below the track, a motor is provided on one side of the lower roller, and the motor is used to drive the lower roller to rotate;

[0008] An adjustment component is connected between the lower roller and the head box, and the adjustment component is used to adjust the distance between the upper roller and the lower roller;

[0009] An ultrasonic sensor is installed at the right end of the head box, a protective plate is provided at the right end of the head box below the ultrasonic sensor, a first pressure sensor is installed on the left side of the protective plate, a buffer assembly is installed inside the head box below the ultrasonic sensor, the buffer assembly is used to reduce the impact force on the head box, the buffer assembly includes a sealing cylinder, a piston is provided inside the sealing cylinder, a first spring is fixedly connected to the left end of the piston, a push rod is fixedly connected to the right end of the piston, the right end of the push rod movably passes through the side wall of the sealing cylinder and extends to the outside, the right end of the push rod is connected to the first pressure sensor, and a liquid permeable hole is opened through the piston;

[0010] A brake assembly is installed at the lower end of the head box, and the brake assembly also includes a second electromagnet, a magnetic conductive plate and a brake pad. The magnetic conductive plate is divided into two groups and is respectively located at the left and right ends of the second electromagnet. When the second electromagnet is energized, the magnetic conductive plate can be magnetically attracted to approach, and the movement of the magnetic conductive plate drives the brake pad to fit on the track surface to brake the head box;

[0011] A detection component is also installed in the brake component. The detection component includes a right-angle triangle bar and an extrusion block. After each braking, the thickness of the brake pad is judged by the different extrusion forces of the right-angle triangle bar on the extrusion block.

[0012] Furthermore, the buffer assembly also includes a current amplifier installed inside the head box, the protective plate is made of piezoelectric ceramic material, and the protective plate is electrically connected to the current amplifier.

[0013] Furthermore, the buffer assembly also includes a sealing cylinder filled with magnetorheological fluid, and the magnetorheological fluid is electrically connected to the current amplifier.

[0014] Furthermore, the buffer assembly also includes a slide groove opened inside the piston, the interior of the slide groove is connected to the liquid permeable hole, a second spring is fixedly connected to the inner wall of one end of the slide groove, one end of the second spring is fixedly connected to a sealing plate, the sealing plate can cover the liquid permeable hole, the sealing plate can slide in the slide groove, the sealing plate is made of magnetic conductive material, and a first electromagnet is installed at one end of the slide groove away from the sealing plate, and the first electromagnet is electrically connected to the current amplifier.

[0015] Furthermore, the brake assembly also includes two groups of fixed plates fixedly installed on the lower end of the front box, the adjacent surfaces of the two groups of fixed plates are fixedly connected with a third spring, the end of the third spring away from the fixed plate is fixedly connected with a magnetic conductive plate, the lower end of the magnetic conductive plate is fixedly connected with a mounting block, the adjacent surfaces of the two groups of mounting blocks are installed with mounting plates, the adjacent surfaces of the two groups of mounting plates are installed with brake pads, the two groups of brake pads are respectively located on both sides of the track, and the brake pads are facing the side surface of the track, a second electromagnet is arranged between the two groups of magnetic conductive plates, and the second electromagnet is installed on the lower end surface of the front box.

[0016] Furthermore, the detection component also includes a right-angled triangle bar fixedly connected to one end of the brake pad, the plane of the right-angled triangle bar and the friction surface of the brake pad are in the same plane, the end of the right-angled triangle bar away from the brake pad is contacted with an extrusion block, the end of the extrusion block facing the track is designed in an arc-shaped structure, the end of the extrusion block away from the brake pad is fixedly connected to a fourth spring, the end of the fourth spring away from the extrusion block is fixedly connected to a second pressure sensor, the end of the second pressure sensor away from the fourth spring is fixedly connected to the inner wall of the fixed plate, the outer sleeve of the second pressure sensor is provided with a sleeve, and the sleeve is fixedly connected to the inner wall of the fixed plate.

[0017] Furthermore, the mounting plate is designed in an L-shaped structure, bolts are arranged below the mounting plate, and the bottom wall of the mounting plate is fixedly connected to the mounting block by the bolts.

[0018] Furthermore, a worm is installed at the output end of the motor, a worm wheel is meshingly connected to the top of the worm, and a side surface of the worm wheel is fixedly connected to the corresponding lower roller.

[0019] Furthermore, the adjustment assembly includes a connecting plate, a groove is provided at a position of the front box corresponding to the connecting plate, a bolt rod is fixedly connected to the inner bottom wall of the groove, the upper end of the bolt rod movably passes through the connecting plate and extends to the outside, a nut is threadedly connected to the bolt rod, the nut is arranged on the upper end of the connecting plate, a fifth spring is also sleeved on the side surface of the bolt rod, the upper end of the fifth spring is pressed against the connecting plate, the lower end of the connecting plate is fixedly connected to a base plate, the motor is mounted on the base plate, and the base plate is rotationally connected to the worm gear and the corresponding lower roller.

[0020] Furthermore, an antenna is installed at the upper end of the head box, and a wireless receiving module, a wireless transmitting module and a power supply battery are also installed inside the head box. The wireless transmitting module and the wireless receiving module are electrically connected to the antenna.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In this solution, when the front box is moving, if the ultrasonic sensor detects an obstacle in front, the control mechanism will be triggered immediately, so that the forward speed of the front box will automatically slow down to the preset low-speed mode, and then slowly approach the obstacle at this safe speed. When contacting the obstacle, the protective plate at the front of the front box will first contact it, and the built-in buffer component will effectively absorb the impact energy, thereby protecting the front box from damage. Subsequently, the front box continues to push the obstacle at a low speed, and at the same time, the first pressure sensor continues to monitor the pressure on the protective plate.

[0023] Once the monitored pressure value exceeds the preset safety threshold, indicating that the obstacle may be large or difficult to push, the controller will quickly cut off the power supply of the motor to prevent the motor from being damaged due to overload and ensure the safe operation of the equipment. For those minor obstacles whose pressure value does not reach the threshold, such as branches, leaves or small stones, the head box will continue to move forward directly, effectively avoiding these light and small objects from interfering with the normal transportation process of the monorail conveyor, reducing unnecessary downtime and improving transportation efficiency.

[0024] In addition, when the motor is powered off due to an obstacle that is too large, the controller will immediately send a signal to the staff's mobile terminal through the wireless transmission module, notifying the staff to go to the site for processing and clear the forward route of the head box. This function not only improves the fault response speed, but also enhances the intelligent management level of the entire transportation system, ensuring that transportation operations can be carried out smoothly and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is an appearance view of the overall structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the worm and worm wheel of the present invention;

[0028] Figure 3It is a cross-sectional view of the interior of the sealing cylinder of the present invention;

[0029] Figure 4 is a cross-sectional view of the interior of the piston of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the second electromagnet of the present invention;

[0031] Figure 6 This is a diagram showing the interior of the fixing plate of the present invention;

[0032] Figure 7 It is an exploded view of the internal components of the fixing plate of the present invention;

[0033] Figure 8 It is a structural schematic diagram of the extrusion block of the present invention;

[0034] Fig. 9 A bottom view of the fixing plate of the present invention;

[0035] Fig.10 It is a structural schematic diagram of the connecting plate of the present invention.

[0036] Description of the numbers in the figure:

[0037] 1. Car head box; 2. Track; 3. Upper roller; 4. Lower roller; 5. Motor; 6. Ultrasonic sensor; 7. Protective plate; 8. Sealing cylinder; 9. Push rod; 10. Piston; 11. Liquid permeable hole; 12. First spring; 13. Magnetorheological fluid; 14. Slide; 15. First electromagnet; 16. Sealing plate; 17. Second spring; 18. Fixed plate; 19. Third spring; 20. Magnetic plate; 21. Mounting block; 22. Mounting plate; 23. Brake pad; 24. Right-angle triangle bar; 25. Extrusion block; 26. Fourth spring; 27. Sleeve; 28. Second pressure sensor; 29. ​​Bolt; 30. Worm; 31. Worm wheel; 32. Base plate; 33. Connecting plate; 34. Bolt rod; 35. Nut; 36. Fifth spring; 37. Antenna; 38. First pressure sensor; 39. Second electromagnet. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention. Example 1

[0039] See also Figures 1 to 10A remote control obstacle avoidance device suitable for an electric monorail transporter comprises a head box 1, a plurality of upper rollers 3 are mounted at the lower end of the head box 1, a track 2 is laid below the upper rollers 3, a lower roller 4 is meshedly connected below the track 2, a motor 5 is arranged on one side of the lower roller 4, and the motor 5 is used to drive the lower roller 4 to rotate;

[0040] An adjustment component is connected between the lower roller 4 and the head box 1, and the adjustment component is used to adjust the distance between the upper roller 3 and the lower roller 4;

[0041] An ultrasonic sensor 6 is installed at the right end of the head box 1, and a protective plate 7 is provided at the right end of the head box 1 below the ultrasonic sensor 6, and a first pressure sensor 38 is installed on the left side of the protective plate 7. A buffer assembly is installed inside the head box 1 below the ultrasonic sensor 6, and the buffer assembly is used to reduce the impact force on the head box 1. The buffer assembly includes a sealing cylinder 8, and a piston 10 is provided inside the sealing cylinder 8. The left end of the piston 10 is fixedly connected to the first spring 12, and the right end of the piston 10 is fixedly connected to the push rod 9. The right end of the push rod 9 movably passes through the side wall of the sealing cylinder 8 and extends to the outside. The right end of the push rod 9 is connected to the first pressure sensor 38, and a liquid permeable hole 11 is opened on the piston 10. The buffer assembly also includes a current amplifier installed inside the head box 1, and the protective plate 7 is made of piezoelectric ceramic material. The protective plate 7 is electrically connected to the current amplifier. The sealing cylinder 8 contains a magnetorheological fluid 13, and the magnetorheological fluid 13 is electrically connected to the current amplifier.

[0042] A worm 30 is installed at the output end of the motor 5 , and a worm wheel 31 is meshedly connected to the upper portion of the worm 30 , and one side surface of the worm wheel 31 is fixedly connected to the corresponding lower roller 4 .

[0043] An antenna 37 is installed at the upper end of the head box 1 , and a wireless receiving module, a wireless transmitting module and a power supply battery are also installed inside the head box 1 . The wireless transmitting module and the wireless receiving module are electrically connected to the antenna 37 .

[0044] When the motor 5 is turned on in actual use, the power supply battery in the head box 1 can provide power for the motor 5, and the motor 5 will drive the worm 30 to rotate. When the worm 30 rotates, it will drive the worm wheel 31 to rotate. When the worm wheel 31 rotates, it will drive the corresponding lower roller 4 to rotate. The lower roller 4 is meshed with the track 2. When the lower roller 4 rotates, it will move along the track 2, thereby driving the head box 1 to move along the track 2. During the movement, the ultrasonic sensor 6 is used to detect whether there is a foreign object in front of the head box 1 that hinders the head box 1 from moving forward. The interior of the head box 1 also A controller is installed, and the controller is electrically connected to the ultrasonic sensor 6. When the ultrasonic sensor 6 detects that there is a foreign object in front that hinders the forward movement, the ultrasonic sensor 6 will transmit a signal to the controller. At this time, the controller will control the motor 5 to reduce the output power, and the driving speed of the front box 1 will be reduced. Then it will move forward at a certain slow speed, and finally the protective plate 7 will slowly hit the foreign object. The protective plate 7 is made of piezoelectric ceramic material. The piezoelectric ceramic has the ability to generate current under the action of mechanical external force. The greater the mechanical force, the greater the current generated. If the mass of the foreign object is greater, the protective plate 7 will When the protective plate 7 hits the foreign object, the greater the current generated, the greater the current generated by the protective plate 7. Then, at the moment when the protective plate 7 hits the foreign object, a current is generated, and the current is proportionally amplified by the current amplifier, and then the amplified current is input into the magnetorheological fluid 13. The magnetorheological fluid 13 has the characteristic that the greater the input current, the greater its own viscosity. That is to say, if the weight of the foreign object is greater, the greater the current generated when the protective plate 7 hits the foreign object, the greater the viscosity of the magnetorheological fluid 13. After the collision, the protective plate 7 pushes the push rod 9 to move toward the inside of the sealing tube 8, and the push rod 9 pushes the piston 10 to move synchronously, and the piston 10 squeezes the first spring 12 and changes the viscosity of the magnetorheological fluid 13 to damp the movement of the piston 10, which can effectively absorb the impact on the protective plate 7 and play a buffering role, thereby preventing the front box 1 from being damaged due to the impact and protecting the front box 1. In addition, the first pressure sensor 38 is electrically connected to the controller. When the protective plate 7 squeezes the push rod 9, the first pressure sensor 38 will monitor the squeezing force of the protective plate 7 in real time. A threshold is set in the controller. When it is detected that the pressure on the first pressure sensor 38 is greater than the threshold, the controller controls the motor 5 to cut off the power.

[0045] It can be simply understood that when the protective plate 7 hits branches, leaves and small stones, the front box 1 directly pushes the branches, leaves and small stones to move. Because the two ends of the protective plate 7 are designed with an arc structure, when the protective plate 7 pushes branches, leaves and small stones, it is convenient for the branches, leaves and small stones to leave the protective plate 7, thereby facilitating the front box 1 to move along the track 2. When encountering some other heavy foreign objects, the protective plate 7 cannot push the foreign objects. At this time, when the first pressure sensor 38 detects that the pressure is greater than the threshold, the controller directly cuts off the power to the motor 5, which can prevent the motor 5 from being overloaded and burning out. After the motor 5 is powered off, the controller can transmit a signal to the staff's mobile terminal through the wireless transmitting module, and promptly remind the staff to clear the forward route of the head box 1. A GPS locator can also be installed in the head box 1. When transmitting a signal, it will be transmitted to the staff's mobile terminal together with the real-time position. The staff can find the stopped head box 1 in time through the location information. The wireless receiving module of the present invention can receive the control signal transmitted by the staff's mobile terminal, so as to achieve the purpose of remotely controlling the head box 1. In addition, the installed antenna 37 can improve the stability and efficiency of signal transmission. Example 2

[0046] In some embodiments, the buffer assembly also includes a slide groove 14 opened inside the piston 10, the interior of the slide groove 14 is connected to the liquid permeable hole 11, and a second spring 17 is fixedly connected to the inner wall of one end of the slide groove 14, and a sealing plate 16 is fixedly connected to one end of the second spring 17. The sealing plate 16 can cover the liquid permeable hole 11, and the sealing plate 16 can slide in the slide groove 14. The sealing plate 16 is made of magnetic conductive material, and a first electromagnet 15 is installed at one end of the slide groove 14 away from the sealing plate 16, and the first electromagnet 15 is electrically connected to the current amplifier.

[0047] In Example 2, the inner sealing cylinder 8 is no longer filled with magnetorheological fluid 13, but with other fluid media such as air, water, or oil. For the convenience of description, Example 2 is described as if the sealing cylinder 8 is filled with oil. After the protective plate 7 generates current, the current is proportionally amplified by the current amplifier, and the amplified current is input into the first electromagnet 15. The larger the input current, the stronger the magnetism of the first electromagnet 15. After the first electromagnet 15 generates magnetism, it will magnetically attract the sealing plate 16. Because the sealing plate 16 is made of magnetic conductive material, the stronger the magnetism of the first electromagnet 15, the stronger the attraction to the sealing plate 16. When the sealing plate 16 moves along the slide groove 14 toward the first electromagnet 15, the second spring 17 will be stretched, and the opening size of the liquid permeable hole 11 will be gradually changed. When the piston 10 moves toward the inside of the sealing cylinder 8, the opening size of the liquid permeable hole 11 is changed, so that the oil in the sealing cylinder 8 is difficult to pass through the liquid permeable hole 11, so as to achieve a damping effect, thereby absorbing the impact force received by the protective plate 7 well. Example 3

[0048] Example 3 is a combination of Example 1 and Example 2, that is, after the protective plate 7 is impacted, the viscosity of the magnetorheological fluid 13 and the opening size of the liquid-permeable hole 11 are simultaneously changed to further improve the damping effect on the protective plate 7 and absorb the impact force on the protective plate 7, thereby greatly improving the protection effect on the front box 1.

[0049] In some embodiments, the brake assembly includes two groups of fixed plates 18 fixedly installed on the lower end of the front box 1, third springs 19 are fixedly connected to adjacent surfaces of the two groups of fixed plates 18, a magnetic conductive plate 20 is fixedly connected to one end of the third spring 19 away from the fixed plate 18, a mounting block 21 is fixedly connected to the lower end of the magnetic conductive plate 20, mounting plates 22 are installed on adjacent surfaces of the two groups of mounting blocks 21, brake pads 23 are installed on adjacent surfaces of the two groups of mounting plates 22, the two groups of brake pads 23 are respectively located on both sides of the track 2, and the brake pads 23 are facing the side surface of the track 2, a second electromagnet 39 is arranged between the two groups of magnetic conductive plates 20, and the second electromagnet 39 is installed on the lower end surface of the front box 1.

[0050] When the motor 5 is decelerating, the speed of the worm wheel 31 is greater than the speed of the worm 30. Because the worm wheel 31 cannot drive the worm 30 to rotate, it is easy to cause the teeth of the worm wheel 31 and worm 30 to be subjected to excessive force and deform, causing damage to the worm wheel 31 and worm 30. Especially when the front box 1 is going uphill, the motor 5 is powered off or lacks power. Although the worm wheel 31 and worm 30 have a self-locking function to prevent the front box 1 from sliding down the slope, it is the worm wheel 31 that drives the worm 30. Over time, the worm wheel 31 and worm 30 are deformed and damaged, and finally lose their self-locking function. When the front box 1 needs to be braked, the present invention energizes the second electromagnet 39, and the second The magnetism generated by the electromagnet 39 will attract the magnetic plate 20, and the magnetic plate 20 will move toward the second electromagnet 39, while stretching the third spring 19. When the magnetic plate 20 moves, it will drive the mounting block 21 to move synchronously. When the mounting block 21 moves, it will drive the brake pad 23 to stick to the side surface of the track 2, thereby increasing the friction and achieving the purpose of braking. The stronger the magnetism of the second electromagnet 39, the tighter the brake pad 23 presses the side surface of the track 2, the greater the friction between the brake pad 23 and the side surface of the track 2, and the better the braking effect. By setting a braking device, combined with the self-locking function of the worm gear 31 and worm 30, the stability of the front box 1 can be greatly improved.

[0051] In some embodiments, the detection component includes a right-angled triangle bar 24 fixedly connected to one end of the brake pad 23, the plane of the right-angled triangle bar 24 is in the same plane as the friction surface of the brake pad 23, and the end of the right-angled triangle bar 24 away from the brake pad 23 is contacted with an extrusion block 25, and the extrusion block 25 is designed with an arc-shaped structure at the end facing the track 2, and the end of the extrusion block 25 away from the brake pad 23 is fixedly connected to a fourth spring 26, and the end of the fourth spring 26 away from the extrusion block 25 is fixedly connected to a second pressure sensor 28, and the end of the second pressure sensor 28 away from the fourth spring 26 is fixedly connected to the inner wall of the fixed plate 18, and the outer sleeve of the second pressure sensor 28 is provided with a sleeve 27, and the sleeve 27 is fixedly connected to the inner wall of the fixed plate 18.

[0052] When the brake pad 23 contacts the side surface of the track 2, it will also drive the plane of the right-angled triangle bar 24 to contact the track 2. During use, the brake pad 23 and the right-angled triangle bar 24 wear to the same extent. After each braking is completed, the previously extended third spring 19 will pull back the magnetic plate 20. At this time, the right-angled triangle bar 24 will also move synchronously with the magnetic plate 20. The right-angled triangle bar 24 will squeeze the inclined surface of the extrusion block 25 during the movement, and finally move to the left end of the extrusion block 25 while squeezing the left end of the extrusion block 25. At this time, the extrusion block 25 compresses the fourth spring 26, and the fourth spring 26 applies pressure to the second pressure sensor 28. The angle bar 24 will become thinner due to wear. When it is reset after each braking, the extrusion pressure of the right-angled triangle bar 24 on the extrusion block 25 will change, and the pressure value monitored by the second pressure sensor 28 will also change. The pressure value gradually decreases. By monitoring the value of the second pressure sensor 28, the wear degree of the brake pad 23 can be known. A threshold is set by the controller. The pressure value monitored by the second pressure sensor 28 is compared with the threshold each time. When the monitored pressure value reaches the threshold, the controller can control the buzzer to sound an alarm or control the LED light to light up, reminding the staff that the brake pad 23 is severely worn and needs to be replaced.

[0053] In some embodiments, the mounting plate 22 is designed as an L-shaped structure, and bolts 29 are provided below the mounting plate 22 . The bottom wall of the mounting plate 22 is fixedly connected to the mounting block 21 through the bolts 29 .

[0054] When replacing the brake pad 23, the bolts 29 are loosened, the connecting mounting plate 22 and the brake pad 23 are removed together, and then a new mounting plate 22 and brake pad 23 are replaced, and the bolts 29 are tightened as they are. The operation is simple and convenient.

[0055] In some embodiments, the adjustment assembly includes a connecting plate 33, and a groove is opened at the position of the front box 1 corresponding to the connecting plate 33. A bolt rod 34 is fixedly connected to the inner bottom wall of the groove. The upper end of the bolt rod 34 movably passes through the connecting plate 33 and extends to the outside. A nut 35 is threadedly connected to the bolt rod 34, and the nut 35 is arranged on the upper end of the connecting plate 33. A fifth spring 36 is also sleeved on the side surface of the bolt rod 34, and the upper end of the fifth spring 36 is tightly pressed against the connecting plate 33. The lower end of the connecting plate 33 is fixedly connected to the base plate 32, and the motor 5 is installed on the base plate 32. The base plate 32 is rotatably connected to the worm gear 31 and the corresponding lower roller 4.

[0056] When it is necessary to adjust the distance between the upper roller 3 and the lower roller 4 to remove the front box 1, tighten the nut 35, the connecting plate 33 moves downward, and at the same time drives the base plate 32 to move together. The movement of the base plate 32 drives the lower roller 4 to move together. Finally, the distance between the upper roller 3 and the lower roller 4 becomes larger, and the front box 1 can be removed at this time.

[0057] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A remote control obstacle avoidance device suitable for an electric monorail transporter, comprising a head box (1), a plurality of groups of upper rollers (3) being mounted at the lower end of the head box (1), a track (2) being laid below the upper rollers (3), a lower roller (4) being meshingly connected below the track (2), a motor (5) being arranged on one side of the lower roller (4), the motor (5) being used to drive the lower roller (4) to rotate; Features: An adjustment component is connected between the lower roller (4) and the front box (1), and the adjustment component is used to adjust the distance between the upper roller (3) and the lower roller (4); An ultrasonic sensor (6) is installed at the right end of the head box (1), a protective plate (7) is provided at the right end of the head box (1) below the ultrasonic sensor (6), a first pressure sensor (38) is installed on the left side of the protective plate (7), a buffer assembly is installed inside the head box (1) below the ultrasonic sensor (6), and the buffer assembly is used to reduce the impact force on the head box (1), the buffer assembly includes a sealing cylinder (8), a piston (10) is provided inside the sealing cylinder (8), the left end of the piston (10) is fixedly connected to a first spring (12), the right end of the piston (10) is fixedly connected to a push rod (9), the right end of the push rod (9) movably penetrates the side wall of the sealing cylinder (8) and extends to the outside, the right end of the push rod (9) is connected to the first pressure sensor (38), and a liquid permeable hole (11) is opened through the piston (10); A brake assembly is installed at the lower end of the head box (1), and the brake assembly also includes a second electromagnet (39), a magnetic plate (20) and a brake pad (23). The magnetic plate (20) is composed of two groups, which are respectively located at the left and right ends of the second electromagnet (39). When the second electromagnet (39) is energized, it can magnetically attract the magnetic plate (20) to approach, and the movement of the magnetic plate (20) drives the brake pad (23) to fit on the surface of the track (2) to achieve braking of the head box (1). The brake assembly also includes two groups of fixed plates (18) fixedly installed at the lower end of the head box (1), and the adjacent surfaces of the two groups of fixed plates (18) are fixedly connected to third springs ( 19), one end of the third spring (19) away from the fixed plate (18) is fixedly connected to a magnetic conductive plate (20), the lower end of the magnetic conductive plate (20) is fixedly connected to a mounting block (21), the adjacent surfaces of the two groups of mounting blocks (21) are both mounted with mounting plates (22), the adjacent surfaces of the two groups of mounting plates (22) are both mounted with brake pads (23), the two groups of brake pads (23) are respectively located on both sides of the track (2), and the brake pads (23) are directly facing the side surface of the track (2), a second electromagnet (39) is arranged between the two groups of magnetic conductive plates (20), and the second electromagnet (39) is mounted on the lower end surface of the head box (1); The brake assembly is also provided with a detection assembly, the detection assembly comprising a right-angled triangle bar (24) and an extrusion block (25). After each braking operation, the thickness of the brake pad (23) is determined by the different extrusion forces of the right-angled triangle bar (24) on the extrusion block (25). The detection assembly also comprises a right-angled triangle bar (24) fixedly connected to one end of the brake pad (23), the plane of the right-angled triangle bar (24) and the friction surface of the brake pad (23) being in the same plane, and the end of the right-angled triangle bar (24) away from the brake pad (23) being in contact with the extrusion block (25). The end of the extrusion block (25) facing the track (2) is designed in an arc-shaped structure; the end of the extrusion block (25) away from the brake pad (23) is fixedly connected to a fourth spring (26); the end of the fourth spring (26) away from the extrusion block (25) is fixedly connected to a second pressure sensor (28); the end of the second pressure sensor (28) away from the fourth spring (26) is fixedly connected to the inner wall of the fixed plate (18); the outer part of the second pressure sensor (28) is provided with a sleeve (27); and the sleeve (27) is fixedly connected to the inner wall of the fixed plate (18).

2. The remote control obstacle avoidance device for an electric monorail transporter according to claim 1, characterized in that: The buffer component also includes a current amplifier installed inside the head box (1); the protective plate (7) is made of piezoelectric ceramic material; and the protective plate (7) is electrically connected to the current amplifier.

3. The remote control obstacle avoidance device for an electric monorail transporter according to claim 2, characterized in that: The buffer assembly also includes a sealing cylinder (8) filled with magnetorheological fluid (13), and the magnetorheological fluid (13) is electrically connected to the current amplifier.

4. A remote control obstacle avoidance device suitable for an electric monorail conveyor according to claim 2 or 3, characterized in that: The buffer assembly further comprises a slide groove (14) provided inside the piston (10), the interior of the slide groove (14) being in communication with the liquid permeable hole (11), a second spring (17) being fixedly connected to the inner wall at one end of the slide groove (14), a sealing plate (16) being fixedly connected to one end of the second spring (17), the sealing plate (16) being capable of covering the liquid permeable hole (11), the sealing plate (16) being capable of sliding inside the slide groove (14), the sealing plate (16) being made of a magnetic conductive material, a first electromagnet (15) being installed at one end of the slide groove (14) away from the sealing plate (16), the first electromagnet (15) being electrically connected to a current amplifier.

5. The remote control obstacle avoidance device for an electric monorail transporter according to claim 1, characterized in that: The mounting plate (22) is designed to be an L-shaped structure, a bolt (29) is provided below the mounting plate (22), and the bottom wall of the mounting plate (22) is fixedly connected to the mounting block (21) via the bolt (29).

6. The remote control obstacle avoidance device for an electric monorail transporter according to claim 1, characterized in that: A worm (30) is mounted on the output end of the motor (5), a worm wheel (31) is meshingly connected to the top of the worm (30), and a side surface of the worm wheel (31) is fixedly connected to the corresponding lower roller (4).

7. The remote control obstacle avoidance device for an electric monorail transporter according to claim 6, characterized in that: The adjustment assembly comprises a connecting plate (33), a groove is provided at a position of the head box (1) corresponding to the connecting plate (33), a bolt rod (34) is fixedly connected to the inner bottom wall of the groove, the upper end of the bolt rod (34) movably passes through the connecting plate (33) and extends to the outside, a nut (35) is threadedly connected to the bolt rod (34), the nut (35) is arranged on the upper end of the connecting plate (33), a fifth spring (36) is sleeved on the side surface of the bolt rod (34), the upper end of the fifth spring (36) is pressed against the connecting plate (33), the lower end of the connecting plate (33) is fixedly connected to a base plate (32), the motor (5) is mounted on the base plate (32), and the base plate (32) is rotationally connected to the worm gear (31) and the corresponding lower roller (4).

8. The remote control obstacle avoidance device for an electric monorail transporter according to claim 1, characterized in that: An antenna (37) is installed at the upper end of the head box (1), and a wireless transmission module, a wireless reception module and a power supply battery are also installed inside the head box (1), and the wireless transmission module and the wireless reception module are electrically connected to the antenna (37).

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