Optimized protective guardrail obstacle avoidance three-disc structure

Abstract

The invention relates to the field of road maintenance equipment, and discloses an optimized protective guardrail obstacle avoidance three-disc structure which comprises a rack, a planet carrier is arranged below the rack in parallel, a top mounting cylinder is fixedly mounted at the bottom end of the rack, a bottom mounting cylinder is fixedly mounted at the top end of the planet carrier, and a plurality of electromagnets are fixedly mounted at the bottom end of the top mounting cylinder. A plurality of permanent magnets attracted with the electromagnets are fixedly mounted at the top end of the bottom mounting cylinder, a power input shaft is rotatably mounted at the center of the rack and the center of the planet carrier, a sun gear is fixedly sleeved with the bottom end of the power input shaft, and a plurality of planet gears meshed with the sun gear are arranged on the outer side of the sun gear. A plurality of transmission assemblies and a plurality of photoelectric sensors are installed on the surface of the planet carrier. By means of the structure, the height of equipment can be effectively reduced, the situation that a belt is broken and flies out to damage personal safety is avoided, and the situation that a human body, tires of a working vehicle and other parts are damaged when a working unit is broken or sharp objects in a working area fly out rapidly is prevented.

Description

Technical Field

[0001] The present invention relates to the field of highway maintenance equipment, and specifically to an optimized three-disc structure for obstacle avoidance of protective guardrails. Background Art

[0002] As an important transportation infrastructure, highways often require the use of highway maintenance equipment for daily maintenance on both sides of the highway. For example, in winter, snow accumulates and freezes at low temperatures, reflecting light and threatening traffic safety; dust pollutes the surrounding soil and damages the ecology; weeds on the road shoulders block highway signs, posing a threat to driving safety. Therefore, this application proposes an optimized three-disc structure for obstacle avoidance of protective guardrails, which is used to automatically avoid obstacles to the protective guardrails when completing shoulder operations and clean different types of sundries outside the guardrails on both sides of the highway by replacing different working units. However, some existing mechanisms have certain defects: 1. The overall height of the existing mechanism is relatively large. When the distance between the corrugated plate and the ground is less than the overall height of the existing mechanism, it cannot extend in for operation. 2. The belt drive system of the existing mechanism is located above the obstacle avoidance disc and has no protective device. Once the belt breaks and flies out, it is extremely easy to injure people. 3. The existing mechanism has no protective device on the side facing the work vehicle. When the working unit hits a hard object and breaks or sharp objects in the working area fly out quickly, it is extremely easy to damage the human body and components such as the tires of the work vehicle. Summary of the Invention

[0003] The purpose of the present invention is to provide an optimized three-disc structure for obstacle avoidance of protective guardrails to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An optimized three-disc structure for obstacle avoidance of protective guardrails, including a frame. A planetary carrier is arranged in parallel below the frame, and a top mounting cylinder is fixedly installed at the bottom end of the frame. A bottom mounting cylinder with a shape adapted to the top mounting cylinder is fixedly installed at the top end of the planetary carrier. A plurality of electromagnets are fixedly installed at the bottom end of the top mounting cylinder, and a plurality of permanent magnets that are mutually attracted to the corresponding electromagnets are fixedly installed at the top end of the bottom mounting cylinder. Power input shafts are respectively rotatably penetrated and installed at the central positions of the frame and the planetary carrier, and the bottom ends of the power input shafts extend below the planetary carrier and are sleeved and fixed with sun gears. A plurality of planet gears that are mutually meshed with the sun gears are arranged outside the sun gears, and a plurality of transmission components are installed on the surface of the planetary carrier. A plurality of photoelectric sensors are fixedly installed on the surface of the planetary carrier. Each planet gear is respectively sleeved and fixed at one end of the corresponding transmission component, and the other end of each transmission component is respectively sleeved and fixed with a working unit.

[0005] Preferably: The plurality of permanent magnets and the plurality of electromagnets are respectively distributed in a ring along the top end of the bottom mounting cylinder and the bottom end of the top mounting cylinder, and each permanent magnet and electromagnet are respectively embedded and installed at the top end of the bottom mounting cylinder and the bottom end of the top mounting cylinder.

[0006] Preferably, each of the transmission components includes a planetary shaft rotatably penetrating and connected to the planet carrier, and a planetary gear is respectively sleeved and fixed at the bottom end of each planetary shaft.

[0007] Preferably, a first belt pulley is respectively sleeved and fixedly installed at the top end of each planetary shaft, and a second belt pulley is respectively connected by a belt drive to one side of each first belt pulley.

[0008] Preferably, each second belt pulley is respectively sleeved and fixed on the outer side of the top end of the working unit shaft, and the bottom end of each working unit shaft is respectively rotatably penetrated and installed with the planet carrier, and a working unit is respectively sleeved and fixed at the bottom end of each working unit shaft.

[0009] Preferably, a U-shaped baffle is respectively fixedly installed at the top of the planet carrier on the outer side of each second belt pulley, and an obstacle avoidance disc is respectively fixedly installed at the top of each U-shaped baffle by a plurality of bolts.

[0010] Preferably, a protective plate is fixedly installed on one side of the frame by a plurality of bolts, and through holes with a diameter larger than the diameter of the power input shaft are respectively formed at the central positions of the top installation cylinder and the bottom installation cylinder.

[0011] Preferably, one end of the detection head of each photoelectric sensor respectively points to the middle position between two adjacent obstacle avoidance discs, and each photoelectric sensor is respectively electrically connected to one end of the electromagnet.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] In the present invention, the top end of the power input shaft is fixedly connected to the output end of the motor fixedly installed on the surface of the frame, so that the rotation of the power input shaft is driven by the output end of the motor. Through the transmission of the power input shaft, the sun gear rotates, so that each planet gear meshing with the sun gear rotates. Each planet gear drives the corresponding planet shaft to rotate respectively, so that the first pulley sleeved outside each planet shaft drives the second pulley to rotate through belt transmission. Thus, the second pulley drives the corresponding working unit to rotate through the transmission of the working unit shaft, and the corresponding road maintenance process is carried out. The structure of the present invention enables the three planet gears and the sun gear to be on the same height plane, and respectively drive the working unit to rotate through the corresponding transmission components. The three transmission components are installed at the same height position, reducing the overall height of the device. Compared with the devices of the prior art, it has a wider application scenario. Secondly, through the mutual attraction of the electromagnets and permanent magnets arranged at the bottom end of the top mounting cylinder and the top end of the bottom mounting cylinder, the fixed connection between the frame and the planet carrier is achieved, which is used to overcome the revolution effect of the planet gears, so that the planet gears can only rotate self, and the working route of the working unit is fixed. Three photoelectric sensors are arranged on the planet carrier to detect obstacles by setting a reasonable detection distance. When the obstacle avoidance disc arranged on the surface of the planet carrier is about to collide with an obstacle, the photoelectric sensors respond and control the three electromagnets to cut off the power, so that the mutual attraction between the electromagnets and the permanent magnets is reduced. When the obstacle avoidance disc is squeezed by an obstacle in the horizontal direction, the obstacle avoidance disc drives the bottom mounting cylinder to rotate along the lower part of the top mounting cylinder. Since the attraction between the top mounting cylinder and the bottom mounting cylinder is greatly reduced, the rotation becomes very easy. When the rotation process ends, the electromagnets are powered on again, so that the top mounting cylinder is attracted to each permanent magnet at the top end of the bottom mounting cylinder again, and the frame and the planet carrier are fixed again, achieving the process of automatic obstacle avoidance. The combination of the U-shaped baffle arranged outside each second pulley and the obstacle avoidance disc above can avoid the situation that when the belt breaks, it will fly out and hurt people's safety. A protective plate is fixedly installed on one side of the frame to protect components such as the human body and the tires of the work vehicle when the working unit collides, resulting in the fracture of the working unit or the rapid flying out of sharp objects in the working area. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the first three-dimensional structure schematic diagram of the present invention;

[0015] Figure 2 is the second three-dimensional structure schematic diagram of the present invention;

[0016] Figure 3 is the three-dimensional structure schematic diagram of a part of the present invention;

[0017] Figure 4 is the enlarged schematic diagram of the structure at A of the present invention.

[0018] In the figure: 1, frame; 2, planet carrier; 3, top mounting cylinder; 4, bottom mounting cylinder; 5, permanent magnet; 6, sun gear; 7, planet gear; 8, power input shaft; 9, transmission assembly; 10, U-shaped baffle; 11, obstacle avoidance disc; 12, working unit; 13, protective plate; 14, photoelectric sensor; 91, planet shaft; 92, first belt pulley; 93, second belt pulley; 94, working unit shaft. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment

[0021] Please refer to Figures 1 - 4 , an optimized protective guardrail obstacle avoidance three-disc structure shown in the figure, including a frame 1, a planet carrier 2 is arranged in parallel below the frame 1, and a top mounting cylinder 3 is fixedly installed at the bottom end of the frame 1. A bottom mounting cylinder 4 with a shape adapted to the top mounting cylinder 3 is fixedly installed at the top end of the planet carrier 2. A plurality of electromagnets are fixedly installed at the bottom end of the top mounting cylinder 3, and a plurality of permanent magnets 5 that are mutually attracted to the corresponding electromagnets are fixedly installed at the top end of the bottom mounting cylinder 4. The power input shafts 8 are rotatably penetrated and installed at the central positions of the frame 1 and the planet carrier 2 respectively, and the bottom end of the power input shaft 8 extends below the planet carrier 2 and is sleeved and fixed with a sun gear 6. A plurality of planet gears 7 that are mutually meshed with the sun gear 6 are arranged outside the sun gear 6, and a plurality of transmission assemblies 9 are installed on the surface of the planet carrier 2. A plurality of photoelectric sensors 14 are fixedly installed on the surface of the planet carrier 2. Each planet gear 7 is respectively sleeved and fixed at one end of the corresponding transmission assembly 9, and the other end of each transmission assembly 9 is respectively sleeved and fixed with a working unit 12. The working unit 12 includes a cleaning broom for cleaning snow and dust on both sides of the road and a tool structure for mowing grass.

[0022] In this embodiment, a plurality of permanent magnets 5 and a plurality of electromagnets are respectively distributed in a ring along the top end of the bottom mounting cylinder 4 and the bottom end of the top mounting cylinder 3, and each permanent magnet 5 and electromagnet are respectively embedded in the top end of the bottom mounting cylinder 4 and the bottom end of the top mounting cylinder 3. Each transmission assembly 9 includes a planetary shaft 91 rotatably penetrating through the planetary carrier 2, and a planetary gear 7 is respectively sleeved and fixed at the bottom end of each planetary shaft 91. A first belt pulley 92 is respectively sleeved and fixed at the top end of each planetary shaft 91, and a second belt pulley 93 is respectively connected to one side of each first belt pulley 92 through belt drive. Each second belt pulley 93 is respectively sleeved and fixed on the outer side of the top end of the working unit shaft 94, and the bottom end of each working unit shaft 94 is respectively rotatably penetrated and installed with the planetary carrier 2. A working unit 12 is respectively sleeved and fixed at the bottom end of each working unit shaft 94. A U-shaped baffle 10 is respectively fixed and installed on the outer side of each second belt pulley 93 at the top end of the planetary carrier 2, and an obstacle avoidance disc 11 is respectively fixed and installed at the top end of each U-shaped baffle 10 through a plurality of bolts. A protective plate 13 is respectively fixed and installed on one side of the frame 1 through a plurality of bolts, and through holes with a diameter larger than the diameter of the power input shaft 8 are respectively opened at the central positions of the top mounting cylinder 3 and the bottom mounting cylinder 4. One end of the detection head of each photoelectric sensor 14 respectively points to the middle position between two adjacent obstacle avoidance discs 11, and each photoelectric sensor 14 is respectively electrically connected to one end of the electromagnet.

[0023] Furthermore, the top end of the power input shaft 8 is fixedly connected to the output end of the motor fixedly installed on the surface of the frame 1, so that the power input shaft 8 is driven to rotate by the output end of the motor. The sun gear 6 is rotated through the transmission of the power input shaft 8, so that each planet gear 7 meshing with the sun gear 6 rotates. Each planet gear 7 drives the corresponding planet shaft 91 to rotate respectively, so that the first pulley 92 sleeved outside each planet shaft 91 drives the second pulley 93 to rotate through belt transmission. Thus, the second pulley 93 drives the corresponding working unit 12 to rotate through the transmission of the working unit shaft 94, and the corresponding road maintenance process is carried out. The structure of the present invention enables the three planet gears 7 and the sun gear 6 to be on the same height plane, and each drives the working unit 12 to rotate through the corresponding transmission assembly 9 respectively. The three transmission assemblies 9 are installed at the same height position, reducing the overall height of the device. Compared with the devices of the prior art, it has a wider application scenario. Secondly, the electromagnets provided at the bottom end of the top mounting cylinder 3 and the top end of the bottom mounting cylinder 4 and the permanent magnets 5 attract each other to achieve the fixed connection between the frame 1 and the planet carrier 2. Three photoelectric sensors 14 are arranged on the planet carrier 2 to detect obstacles by setting a reasonable detection distance. When the obstacle avoidance disc 11 arranged on the surface of the planet carrier 2 is about to collide with an obstacle, the photoelectric sensors 14 respond, controlling the three electromagnets to cut off the power, so that the mutual attraction between the electromagnets and the permanent magnets 5 is reduced. When the obstacle avoidance disc 11 is squeezed by an obstacle in the horizontal direction, the obstacle avoidance disc 11 drives the bottom mounting cylinder 4 to rotate along the lower part of the top mounting cylinder 3. Since the attraction between the top mounting cylinder 3 and the bottom mounting cylinder 4 is greatly reduced, the rotation will become very easy. When the rotation process ends, the electromagnets are powered on again, so that the top mounting cylinder 3 is attracted to each permanent magnet 5 at the top end of the bottom mounting cylinder 4 again, and the frame 1 and the planet carrier 2 are fixed again, achieving the process of automatic obstacle avoidance. The combination of the U-shaped baffle 10 and the obstacle avoidance disc 11 respectively arranged outside each second pulley 93 can avoid the situation that when the belt breaks, it will fly out and hurt people's safety. A protection plate 13 is fixedly installed on one side of the frame 1 to protect components such as the human body and the tires of the work vehicle when the working unit collides, resulting in the fracture of the working unit or the rapid flying out of sharp objects in the working area.

[0024] Further, the photoelectric sensor 14 is a diffuse reflection type photoelectric switch sensor, that is, a matching light emitter and a light receiver are respectively installed in the detection head of each photoelectric sensor 14. During the use of the device, the light emitted by the light emitter in the detection head of the photoelectric sensor 14 is not received by the light receiver without the reflection of an obstacle. When the device encounters an obstacle, part of the light emitted by the light emitter is reflected by the obstacle and received by the light receiver. The photoelectric sensor 14 sends a signal to the controller, thereby controlling each electromagnet to cut off the power, so that the mutual attraction between each electromagnet and the permanent magnet 5 is greatly reduced.

[0025] Working principle of the present invention: Fix the top end of the power input shaft 8 to the output end of the motor fixedly installed on the surface of the frame 1, so as to drive the power input shaft 8 to rotate through the output end of the motor. The sun gear 6 rotates through the transmission of the power input shaft 8, so that each planet gear 7 meshing with the sun gear 6 rotates. Each planet gear 7 drives the corresponding planet shaft 91 to rotate respectively, so that the first pulley 92 sleeved outside each planet shaft 91 drives the second pulley 93 to rotate through belt transmission. Thus, the second pulley 93 drives the corresponding working unit 12 to rotate through the transmission of the working unit shaft 94, and the corresponding road maintenance process is carried out. The structure of the present invention enables the three planet gears 7 and the sun gear 6 to be on the same height plane, and respectively drive the working unit 12 to rotate through the corresponding transmission components 9. The three transmission components 9 are installed at the same height position, reducing the overall height of the device, and having a wider application scenario compared with the devices of the prior art. Secondly, the electromagnets provided at the bottom end of the top mounting cylinder 3 and the permanent magnets 5 provided at the top end of the bottom mounting cylinder 4 are attracted to each other to achieve the fixed connection between the frame 1 and the planet carrier 2. Three photoelectric sensors 14 are provided on the planet carrier 2 to detect obstacles by setting a reasonable detection distance. When the obstacle avoidance disc 11 provided on the surface of the planet carrier 2 is about to collide with an obstacle, the photoelectric sensor 14 responds, controls the three electromagnets to cut off the power, and reduces the mutual attraction between the electromagnet and the permanent magnet 5. When the obstacle avoidance disc 11 is squeezed by an obstacle in the horizontal direction, the obstacle avoidance disc 11 drives the bottom mounting cylinder 4 to rotate along the lower part of the top mounting cylinder 3. Since the attraction between the top mounting cylinder 3 and the bottom mounting cylinder 4 is greatly reduced, the rotation will become very easy. When the rotation process ends, the electromagnet is powered on again, so that the top mounting cylinder 3 is attracted to each permanent magnet 5 at the top end of the bottom mounting cylinder 4 again, and the frame 1 and the planet carrier 2 are fixed again, achieving the process of automatic obstacle avoidance. The combination of the U-shaped baffle 10 and the obstacle avoidance disc 11 provided outside each second pulley 93 can avoid the situation that the belt breaks and flies out to hurt people's safety. A protective plate 13 is fixedly installed on one side of the frame 1 to protect components such as the human body and the tires of the work vehicle when the working unit collides, resulting in the fracture of the working unit or the rapid flying out of sharp objects in the working area.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

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

Claims

1. An optimized obstacle avoidance three - disc structure for a protective guardrail, comprising a frame (1), characterized in that: A planet carrier (2) is arranged in parallel below the frame (1), and a top mounting cylinder (3) is fixedly installed at the bottom end of the frame (1). A bottom mounting cylinder (4) with a shape adapted to the top mounting cylinder (3) is fixedly installed at the top end of the planet carrier (2). A plurality of electromagnets are fixedly installed at the bottom end of the top mounting cylinder (3), and a plurality of permanent magnets (5) that are mutually attracted to the corresponding electromagnets are fixedly installed at the top end of the bottom mounting cylinder (4). The power input shafts (8) are respectively rotatably penetrated and installed at the central positions of the frame (1) and the planet carrier (2), and the bottom ends of the power input shafts (8) extend below the planet carrier (2) and are sleeved and fixed with sun gears (6). A plurality of planet gears (7) that are mutually meshed with the sun gears (6) are arranged outside the sun gears (6), and a plurality of transmission components (9) are installed on the surface of the planet carrier (2). A plurality of photoelectric sensors (14) are fixedly installed on the surface of the planet carrier (2). Each planet gear (7) is respectively sleeved and fixed at one end of the corresponding transmission component (9), and a working unit (12) is respectively sleeved and fixed at the other end of each transmission component (9).

2. The optimized obstacle avoidance three-disk structure of the protective guardrail according to claim 1, characterized in that: The plurality of permanent magnets (5) and the plurality of electromagnets are respectively distributed in a ring along the top end of the bottom mounting cylinder (4) and the bottom end of the top mounting cylinder (3), and each permanent magnet (5) and electromagnet are respectively embedded in the top end of the bottom mounting cylinder (4) and the bottom end of the top mounting cylinder (3).

3. The optimized obstacle avoidance three-disk structure of the protective guardrail according to claim 2, characterized in that: Each transmission component (9) includes a planet shaft (91) that is rotatably penetrated and connected to the planet carrier (2), and the bottom ends of each planet shaft (91) are respectively sleeved and fixed with planet gears (7).

4. An optimized protective guardrail obstacle avoidance triple-disc structure according to claim 3, characterized in that: The top ends of each planet shaft (91) are respectively sleeved and fixed with first belt pulleys (92), and each first belt pulley (92) is respectively connected to a second belt pulley (93) by belt drive on one side.

5. The optimized obstacle avoidance three-disc structure of the protective guardrail according to claim 4, characterized in that: Each second belt pulley (93) is respectively sleeved and fixed outside the top end of a working unit shaft (94), and the bottom ends of each working unit shaft (94) are respectively rotatably penetrated and installed with the planet carrier (2). The bottom ends of each working unit shaft (94) are respectively sleeved and fixed with a working unit (12).

6. The optimized obstacle avoidance three-disk structure of a protective guardrail according to claim 5, characterized in that: U - shaped baffles (10) are respectively fixedly installed on the top of the planet carrier (2) outside each second belt pulley (93), and obstacle avoidance discs (11) are respectively fixedly installed at the top of each U - shaped baffle (10) through a plurality of bolts.

7. An optimized three-disk structure for obstacle avoidance of a protective guardrail according to claim 6, characterized in that: A protective plate (13) is fixedly installed on one side of the frame (1) through a plurality of bolts, and through holes with a diameter larger than the diameter of the power input shaft (8) are respectively opened at the central positions of the top mounting cylinder (3) and the bottom mounting cylinder (4).

8. An optimized protective guardrail obstacle avoidance triple-disc structure according to claim 7, characterized in that: One end of the detection head of each photoelectric sensor (14) respectively points to the middle position between two adjacent obstacle avoidance discs (11), and each photoelectric sensor (14) is respectively electrically connected to one end of the electromagnet.

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