A garbage collection device for a comprehensive greening maintenance vehicle and its automatic control system

Abstract

This invention discloses a garbage collection device and its automatic control system for a comprehensive greening maintenance vehicle, belonging to the field of environmental protection equipment technology. The collection device is located at the head of the comprehensive greening maintenance vehicle and is connected to the working arm and quick-change seat. The collection device includes a three-bladed suction arm with a suction cylinder for storing the collected garbage. A rotary motor for driving the three-bladed suction arm is connected to the suction cylinder. The upper end of the suction cylinder has an air intake, and the lower end has a feed inlet. The three-bladed suction arm is equipped with an anti-collision limiting mechanism to protect it from collisions. This invention, by setting up a collection device, completes garbage collection work that ordinary garbage sweepers cannot reach under the guardrail to complete, simplifying the operation of garbage sweepers and improving work efficiency. At the same time, the automatic control system improves the safety and reliability of the entire collection device.

Description

Technical Field

[0001] This invention belongs to the field of sanitation equipment technology, specifically relating to a garbage collection device for a greening comprehensive maintenance vehicle and its automatic control system. Background Technology

[0002] In practical work, especially in garbage cleaning operations under medians and guardrails on highways, national roads, and provincial roads, the following problem is frequently encountered: ordinary garbage sweepers cannot reach under the guardrails to complete the garbage cleaning, and the task must be done manually. This not only wastes a lot of manpower and resources, but also poses significant safety hazards for cleaning personnel working manually on highways, easily leading to traffic accidents. Therefore, it is necessary to design a safe garbage cleaning device that can be used in various situations to reduce the intensity of labor. Summary of the Invention

[0003] To address the aforementioned shortcomings, this invention provides a waste collection device for a comprehensive greening maintenance vehicle and its automatic control system.

[0004] The objective of this invention is achieved as follows: a garbage collection device for a greening comprehensive maintenance vehicle, wherein the collection device is located at the front of the greening comprehensive maintenance vehicle, which includes a working arm and a blower; the working arm is connected to the greening comprehensive maintenance vehicle via a quick-change seat, and the blower is connected to the collection device via an air duct; the feature is that the collection device includes a fixed structure and a rotating structure, the rotating structure includes a three-bladed collection arm and a brake disc, and the fixed structure is provided on the three-bladed collection arm;

[0005] The fixed structure includes a suction cylinder and a transmission structure. The transmission structure is used to drive the brake disc to control the rotation of the three-lobe suction arm. The brake disc is connected to the transmission structure.

[0006] The three-blade suction arm is equipped with a suction cylinder for storing the collected waste. The upper end of the suction cylinder is equipped with an air inlet, and the lower end of the suction cylinder is equipped with a feed inlet for feeding.

[0007] The trilobal suction arm is equipped with an anti-collision limiting mechanism to protect the trilobal suction arm from collision.

[0008] Preferably, the anti-collision limiting mechanism includes a left-shift limit switch, a right-shift limit switch, and a contact rod device, which is mounted on a three-leaf pickup arm.

[0009] Preferably, the three-lobe suction arm rotates around the suction cylinder at an angle of 0-120°.

[0010] Preferably, the transmission structure is provided with a protective cover on the outside to protect the gears and electrical components of the slewing bearing.

[0011] Preferably, the suction cylinder is provided with a feeding auxiliary plate inside, which is located at the feeding inlet to help the garbage smoothly enter the upper part of the suction cylinder.

[0012] Preferably, the transmission structure includes a rotary motor, a coupling, gears, a slewing bearing rotor, and a slewing bearing stator;

[0013] The rotary motor is connected to a pinion via a coupling. The pinion meshes with the rotary bearing rotor, and the rotary bearing rotor is connected to a three-lobe pickup arm.

[0014] The slewing bearing stator is connected to the slewing bearing rotor via a clearance connection, and the air intake is connected to the slewing bearing stator by bolts;

[0015] A brake disc is fixedly installed between the slewing bearing rotor and the three-lobe suction arm; the rotation of the gear drives the rotation of the three-lobe suction arm and the brake disc through the slewing bearing rotor.

[0016] An automatic control system for a garbage collection device of a greening comprehensive maintenance vehicle is characterized in that: the automatic control system includes a rotation main control module, a rotation brake control module, an obstacle avoidance limit control module, and a speed sensor installed on the greening comprehensive maintenance vehicle. The speed sensor measures the vehicle's driving speed and transmits the signal to the rotation main control module.

[0017] The rotary brake control module controls the brake disc, and the obstacle avoidance limit control module controls the anti-collision limit mechanism.

[0018] Preferably, the rotation main control module includes a start limit switch, a first time delay relay, a switching solenoid valve, and a proportional valve. The start limit switch is connected in series with the first time delay relay, the switching solenoid valve, and the proportional valve to control the duration of energization of the switching solenoid valve and the proportional valve.

[0019] Preferably, the rotary brake control module includes a start limit switch, a second delay relay, a third delay relay, a pneumatic solenoid valve, a brake limit switch, and a sensing iron plate, with the brake limit switch installed inside the protective cover;

[0020] The pneumatic solenoid valve has a protective cover on its outer side, and the sensing iron plate is mounted on the brake disc.

[0021] Preferably, the obstacle avoidance limit control module includes a left-shift limit switch, a right-shift limit switch, a left-shift solenoid valve, and a right-shift solenoid valve. The left-shift limit switch controls the left-shift solenoid valve to move the pickup device to the left, and the right-shift limit switch controls the right-shift solenoid valve to move the pickup device to the right.

[0022] The beneficial effects of the present invention are as follows: 1. By setting up a suction device, the garbage sweeper can complete the garbage cleaning work that ordinary garbage sweepers cannot reach under the guardrail, simplifying the working method of the garbage sweeper and improving work efficiency; at the same time, the automatic control system improves the safety and reliability of the entire suction device.

[0023] 2. By incorporating anti-collision limiting mechanisms on the three-bladed suction arm and controlling it with an automatic control system, collisions with the suction device are prevented, further enhancing the overall safety of the suction device. The automatic control system includes a main rotation control module, a rotation brake control module, and an obstacle avoidance limiting control module. These modules automatically rotate 120° upon encountering a pillar under the median strip or guardrail to avoid it. After bypassing the pillar, they immediately brake automatically, allowing the waste inlet of the next suction arm to quickly connect with the fixed air vent, ensuring that waste under the guardrail always enters through the suction arm extending below the guardrail. Simultaneously, when the guardrail approaches the guardrail panel, the obstacle avoidance limiting mechanism automatically maintains a set distance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2 This is a cross-sectional view of the present invention.

[0026] Figure 3 This is a top view of the present invention.

[0027] Figure 4 This is a schematic diagram of the PLC control principle.

[0028] Figure 5 A schematic diagram of the obstacle avoidance process of an automatic control system.

[0029] Figure 6 This is an electrical schematic diagram of an automatic control system.

[0030] Figure 7 This is a state diagram for the use of the present invention.

[0031] Among them, 1 is a rotary motor; 101 is a quick-change seat; 102 is a protective cover; 2 is a coupling; 3 is a gear; 4 is a rotary bearing rotor; 5 is a rotary bearing stator; 6 is a three-lobe suction arm; 7 is a suction port; 8 is a suction cylinder; 9 is a feeding auxiliary plate; 10 is a feeding port; 11 is a start limit switch; 12 is a rotating contact rod device; 13 is a pneumatic spring; 14 is a brake; 15 is a pneumatic solenoid valve; 16 is a sensing iron plate; 17 is a brake disc; 18 is a left-shift limit switch; 19 is a right-shift limit switch; 20 is a contact rod device; and 21 is a brake limit switch. Detailed Implementation

[0032] like Figure 1 , 7As shown, a garbage collection device for a greening comprehensive maintenance vehicle is provided. The collection device is installed at the front of the greening comprehensive maintenance vehicle. The greening comprehensive maintenance vehicle is equipped with a working arm and a blower. The working arm is connected to the collection device through a quick-change seat 101 in the collection device. The blower is connected to the collection device through an air duct.

[0033] The suction device includes a three-lobe suction arm 6, with a suction cylinder 8 for storing the collected waste located in the middle of the three-lobe suction arm 6; a protective cover 102 is provided on the upper end face of the three-lobe suction arm 6, and a transmission structure for driving the three-lobe suction arm 6 to rotate is provided on the upper end face of the protective cover 102. The transmission structure includes a rotary motor 1, a coupling 2, a gear 3, a rotary bearing rotor 4, and a rotary bearing stator 5; the rotary motor 1 is connected to the gear through the coupling 2, the gear 3 is meshed with the rotary bearing rotor 4, and the rotary bearing rotor is connected to the three-lobe suction arm;

[0034] The slewing bearing stator 5 is connected to the slewing bearing rotor 4, and the air inlet 7 is connected to the slewing bearing stator 5 by bolts; a brake disc 17 is fixedly installed between the slewing bearing rotor 4 and the three-lobe suction arm 6; the rotation of the gear 3 drives the rotation of the three-lobe suction arm 6 and the brake disc 17 through the slewing bearing rotor 4.

[0035] Furthermore, an air intake 7 is provided on the upper end face of the suction cylinder 8, and a feed inlet 10 for feeding is provided on the lower end face of the suction cylinder 8; a feeding auxiliary plate 9 is provided inside the suction cylinder 8, located at the feed inlet 10, to help the garbage smoothly enter the upper part of the suction cylinder 8. The upper part of the suction cylinder 8 is connected to the recycling bin of the greening maintenance vehicle through an air duct.

[0036] Furthermore, a brake 14 is provided on the three-lobe suction arm 6, and the upper and lower brake pads of the brake 14 are installed on both sides of the brake disc 17. When the brake 14 is not working, the upper and lower brake pads do not contact the brake disc 17. When the brake 14 is working, the upper and lower brake pads clamp together and rub against the brake disc 17 to brake. The brake disc 17 is provided on the three-lobe suction arm 6, and an induction iron plate 16 is provided on the inner side of the brake disc 17. Each lobe suction arm of the three-lobe suction arm 6 is provided with a brake disc 17 to control the rotation of each lobe suction arm. The three-lobe suction arm 6 can rotate from 0 to 120°.

[0037] Furthermore, a rotating contact rod device 12 is provided on the protective cover 102. One end of the rotating contact rod device 12 is connected to a pneumatic spring 13, and the other end of the pneumatic spring 13 is connected to the protective cover 102. When the three-lobe suction arm 6 rotates 120°, the B port rotates to the front of the column, and the pneumatic spring 13 resets the rotating contact rod device 12. The pneumatic spring 13 has a certain elastic force to ensure that weeds and shrubs in the isolation zone are overcome and that the contact rod and limit switch 11 do not malfunction. The rotating contact rod device 12 includes a first contact rod, the length of which is greater than the length of the three-lobe suction arm 6.

[0038] Furthermore, the protective cover 102 of the three-lobe suction arm 6 is also provided with an anti-collision limit mechanism. The anti-collision limit mechanism includes a left-shift limit switch 18, a right-shift limit switch 19, and a contact rod device 20. The contact rod device 20 is located on the three-lobe suction arm 6. The contact rod device 20 includes a second contact rod, which adopts a T-shaped structure.

[0039] Furthermore, the air intake 7 is connected to the slewing bearing stator 5 by bolts, and the fan is connected to the air intake 707 by an air duct.

[0040] An automatic control system for a garbage collection device of a greening integrated maintenance vehicle includes a rotation main control module, a rotation brake control module, an obstacle avoidance limit control module, and a speed sensor installed on the greening integrated maintenance vehicle. The speed sensor measures the vehicle's speed and transmits the signal to the rotation main control module.

[0041] The rotary brake control module controls the brake disc 17, and the obstacle avoidance limit control module controls the anti-collision limit mechanism.

[0042] Furthermore, the main control module includes a start limit switch 11, a first time delay relay, a switching solenoid valve, and a proportional valve. The start limit switch 11 is connected in series with the first time delay relay, the switching solenoid valve, and the proportional valve to control the duration of energization of the switching solenoid valve and the proportional valve.

[0043] Furthermore, the rotary brake control module includes a start limit switch 11, a second time-delay relay, a third time-delay relay, a pneumatic solenoid valve 15, a brake limit switch, and a sensing iron plate 16. The brake limit switch is installed inside the protective cover 102; the pneumatic solenoid valve 15 is located on the outside of the protective cover 102, and the sensing iron plate 16 is located on the brake disc 17. In the rotary brake control, the brake limit switch is connected in series with the second and third time-delay relays to control the opening time of the pneumatic solenoid valve 15, reducing the inertial effect of the rotary motor 1 during rotation, so that the three-lobe pickup arm 606 can rotate exactly 120 degrees and then stop.

[0044] Furthermore, the obstacle avoidance limit control module includes a left-shift limit switch 18, a right-shift limit switch 19, a left-shift solenoid valve, and a right-shift solenoid valve; the left-shift limit switch 18 controls the left-shift solenoid valve to move the three-lobe suction arm 6 to the left, and the right-shift limit switch 19 controls the right-shift solenoid valve to move the three-lobe suction arm 6 to the left and right.

[0045] When the contact rod device 20 moves away from the protective plate (the maximum distance Q can be set), the left-shift limit switch 18 returns to its original position, the normally closed contact closes, and the left-shift solenoid valve controls the left-shift solenoid valve to move the boom to the left, making the distance between the machine and the protective plate less than Q. When the machine is at its closest distance M to the protective plate, the right-shift limit switch 19 is activated, closing it and controlling the right-shift solenoid valve to move the boom to the right, making the distance between the machine and the protective plate M. In this way, the distance between the machine and the protective plate can be guaranteed to be between M and Q.

[0046] Working principle: The working arm of the greening comprehensive maintenance vehicle is connected to the quick-change seat 101 of the suction device, which is connected to the front of the greening comprehensive maintenance vehicle. The front of the greening comprehensive maintenance vehicle is equipped with a protective plate. When the contact rod device 20 connected to the three-lobed suction arm 6 is in the working state of automatically absorbing garbage, the top edge of the T-shaped device 20 is always attached to the protective plate. The structure of the contact rod device 20 can be designed as a T-shaped structure, and its top edge can be covered by wear-resistant nylon round tube material on both sides. The wear-resistant nylon round tube material can roll. The arm of the three-lobed suction arm 6 is equipped with a brake disc 17. The rotation brake control module controls the opening or closing of the brake disc 17, thereby controlling the rotation of the three-lobed suction arm 6. The rotation main control module obtains the vehicle's driving speed through the PLC controller. The PLC controller calculates the output proportional valve opening degree through the formula and controls the proportional valve. The larger the opening degree, the more oil is supplied, and the faster the rotation speed of the rotary motor 1 and the three-lobed rotating arm will be. The obstacle avoidance limit control module controls the anti-collision limit mechanism to prevent the three-leaf suction arm 6 from colliding.

[0047] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A garbage collection device for a greening comprehensive maintenance vehicle, wherein the collection device is located at the front of the greening comprehensive maintenance vehicle, the greening comprehensive maintenance vehicle includes a working arm and a blower; the working arm is connected to the greening comprehensive maintenance vehicle via a quick-change seat (101), and the blower is connected to the collection device via an air duct; characterized in that: The suction device includes a fixed structure and a rotating structure. The rotating structure includes a three-bladed suction arm (6) and a brake disc. The three-bladed suction arm (6) is provided with a fixed structure. The fixed structure includes a suction cylinder (8) and a transmission structure. The transmission structure is used to drive the brake disc (17) to control the rotation of the three-lobe suction arm (6). The brake disc (17) is connected to the transmission structure. The transmission structure is provided with a protective cover (102) to protect the transmission structure; a rotating contact rod device (12) is provided on the protective cover (102), and one end of the rotating contact rod device (12) is connected to a pneumatic spring (13), and the other end of the pneumatic spring (13) is connected to the protective cover (102); when the three-leaf suction arm (6) rotates 120°, the B port rotates to the front of the column, and the pneumatic spring (13) resets the rotating contact rod device (12). The elastic force of the pneumatic spring (13) ensures that weeds and shrubs in the isolation belt are overcome, and the contact rod and limit switch (11) are not malfunctioning; the rotating contact rod device (12) includes a first contact rod, the length of which is greater than the length of the three-leaf suction arm 6; The three-blade suction arm (6) is provided with a suction cylinder (8) for storing and collecting garbage. The upper end of the suction cylinder (8) is provided with an air inlet (7), and the lower end of the suction cylinder (8) is provided with a feed inlet (10) for feeding. The trilobal suction arm (6) is provided with an anti-collision limiting mechanism, which is used to protect the trilobal suction arm (6) from collision.

2. The garbage collection device for a comprehensive greening maintenance vehicle according to claim 1, characterized in that: The anti-collision limiting mechanism includes a left-shift limit switch (18), a right-shift limit switch (19), and a contact rod device (20), which is mounted on a three-leaf pickup arm (6).

3. The garbage collection device for a comprehensive greening maintenance vehicle according to claim 1, characterized in that: The three-blade suction arm (6) rotates around the suction cylinder (8) at an angle of 0-120°.

4. The garbage collection device for a comprehensive greening maintenance vehicle according to claim 1, characterized in that: The suction cylinder (8) is equipped with a feeding auxiliary plate (9) inside. The feeding auxiliary plate (9) is located at the feeding port (10) and is used to help the garbage smoothly enter the upper part of the suction cylinder (8).

5. The garbage collection device for a comprehensive greening maintenance vehicle according to claim 1, characterized in that: The transmission structure includes a rotary motor (1), a coupling (2), a gear (3), a rotary bearing rotor (4), and a rotary bearing stator (5). The rotary motor (1) is connected to a pinion via a coupling (2), the pinion (3) meshes with the rotary bearing rotor (4), and the rotary bearing rotor (4) is connected to the three-lobe pickup arm (6). The slewing bearing stator (5) is connected to the slewing bearing rotor (4) through clearance, and the air inlet (7) is connected to the slewing bearing stator (5) by bolts; A brake disc (17) is fixedly installed between the slewing bearing rotor (4) and the three-lobe suction arm (6); the rotation of the gear (3) drives the rotation of the three-lobe suction arm (6) and the brake disc (17) through the slewing bearing rotor (4).

6. The automatic control system for a garbage collection device for a comprehensive greening maintenance vehicle according to any one of claims 1-5, characterized in that: The automatic control system includes a rotation main control module, a rotation brake control module, an obstacle avoidance limit control module, and a speed sensor installed on the greening comprehensive maintenance vehicle. The speed sensor measures the vehicle's speed and transmits the signal to the rotation main control module. The rotary brake control module is used to control the brake disc (17), and the obstacle avoidance limit control module controls the anti-collision limit mechanism; the rotary brake control module includes a start limit switch (11), a second delay relay, a third delay relay, a pneumatic solenoid valve (15), a brake limit switch, and an induction iron plate (16), and the brake limit switch is installed inside the protective cover (102); The pneumatic solenoid valve (15) has an outer side of a protective cover (102), and the sensing iron plate (16) is located on the brake disc (17); The obstacle avoidance limit control module includes a left-shift limit switch (18), a right-shift limit switch (19), a left-shift solenoid valve, and a right-shift solenoid valve. The left-shift limit switch (18) controls the left-shift solenoid valve to move the pickup device to the left, and the right-shift limit switch (19) controls the right-shift solenoid valve to move the pickup device to the right. When the contact rod device (20) leaves the protective plate, the left-shift limit switch (18) is restored, the normally closed point is closed, and the left-shift solenoid valve is controlled to move the boom to the left, so that the distance between the machine and the protective plate is less than Q. When the machine is closest to the protective plate at a distance M, the right-shift limit switch (19) is triggered to close, and the right-shift solenoid valve is controlled to move the boom to the right, so that the distance between the machine and the protective plate is M, ensuring that the distance between the machine and the protective plate is between M and Q.

7. The automatic control system for a garbage collection device for a comprehensive greening maintenance vehicle according to claim 6, characterized in that: The main control module for rotation includes a start limit switch (11), a first time delay relay, a switching solenoid valve, and a proportional valve. The start limit switch (11) is connected in series with the first time delay relay, the switching solenoid valve, and the proportional valve to control the duration of energization of the switching solenoid valve and the proportional valve.

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