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CN-121976447-A - Unmanned paving speed cooperative control system and method driven by asphalt mixture properties

CN121976447ACN 121976447 ACN121976447 ACN 121976447ACN-121976447-A

Abstract

The invention discloses an unmanned paving speed cooperative control system and method driven by asphalt mixture properties, which relate to the technical field of engineering machinery and comprise a frame, wherein the lower end of the frame is symmetrically provided with a crawler belt moving structure, the edge positions of the two sides of the upper end of the frame are symmetrically provided with two side plates, the conveying bin is arranged at the front part of the upper end of the frame, the fixing plate is arranged at the rear part of the upper end of the frame, the front end of the conveying bin and the rear end of the fixing plate are both provided with rotary structures, and the front end of the rotary structure of the front end of the conveying bin is provided with the conveying bin. According to the invention, a series of structures are arranged, the actions of all the components are precisely linked through the control unit, the problems of uneven thickness, aggregate segregation and the like caused by asynchronous material conveying, paving and compacting are avoided, compared with the traditional single-machine independent operation, the paving evenness and compactness are greatly improved, meanwhile, the operation period is shortened, the paving requirements of different widths and thicknesses are adapted, and the operation efficiency is improved.

Inventors

  • WANG ZHANQI
  • LI PEIRONG
  • WANG CHAOYANG
  • GAO YU

Assignees

  • 安徽理工大学

Dates

Publication Date
20260505
Application Date
20260203

Claims (10)

  1. 1. The unmanned paving speed cooperative control system driven by asphalt mixture property comprises a frame (1), wherein crawler moving structures (3) are symmetrically arranged at the lower end of the frame (1), two side plates (2) are symmetrically arranged at the edge positions of two sides of the upper end of the frame (1), a conveying bin (6) is arranged at the front part of the upper end of the frame (1), a fixing plate (13) is arranged at the rear part of the upper end of the frame (1), rotary structures (7) are arranged at the front end of the conveying bin (6) and the rear end of the fixing plate (13), a feeding bin (8) is arranged at the front end of the conveying bin (6), a laying pipe (9) is arranged at the lower end of the feeding bin (8), a second conveying spiral auger is arranged on the inner frame of the laying pipe (9), a transition bin (5) is arranged at the center position of the upper end of the frame (1), a bin (4) is arranged at the rear end of the transition bin (5), asphalt is filled in the bin (4), and a heat preservation auger (21) is arranged between the conveying bin (4) and the conveying auger (8).
  2. 2. The unmanned paving speed cooperative control system driven by asphalt mixture properties according to claim 1, wherein two air purifiers (11) are symmetrically arranged at the front part of the lower end of the frame (1), a negative pressure air pump (25) is arranged at the lower end of each air purifier (11), a filter screen (28) is arranged in each air purifier (11), an activated carbon layer (29) is arranged at the upper end of each filter screen (28), an air outlet (26) is formed in the front end of each air purifier (11), and a particle concentration sensor is arranged in each air outlet (26).
  3. 3. The unmanned paving speed cooperative control system driven by asphalt mixture properties according to claim 2, wherein a feeding hole (22) is formed in the center of the upper end of the paving pipe (9), the feeding hole (22) is communicated with the feeding bin (8), a plurality of discharging holes (24) are formed in the lower end of the paving pipe (9) at equal intervals, a scraper (10) is installed at the lower end of a rotating structure (7) close to the paving pipe (9), and the scraper (10) is matched with the paving pipe (9).
  4. 4. The unmanned paving speed cooperative control system driven by asphalt mixture properties according to claim 3, wherein the rotating structure (7) comprises a supporting plate (701), a lower rotating shaft (702), a hydraulic rod (703), an upper rotating plate (704), a positioning plate (705) and an edge plate (706), the supporting plate (701) is installed at the center of the rear end of the fixing plate (13), the lower rotating shaft (702) is installed on two sides of the supporting plate (701), the edge plate (706) is rotatably connected to the outer side of the lower rotating shaft (702), an upper rotating plate (704) is rotatably connected to the position above the inner side lower rotating shaft (702) of the edge plate (706), one end of the upper rotating plate (704) is fixedly connected with the fixing plate (13) through the hydraulic rod (703), and the positioning plate (705) is rotatably connected between the two upper rotating plates (704).
  5. 5. The unmanned paving speed cooperative control system driven by asphalt mixture properties according to claim 4, wherein two rotating plates (12) are symmetrically arranged at the outer ends of the positioning plates (705), and a first crawler conveying structure (18) is arranged between the two rotating plates (12).
  6. 6. The unmanned paving speed cooperative control system driven by asphalt mixture properties according to claim 5, wherein a guide groove (14) is formed in the upper end of the fixed plate (13), a sliding block is installed in the guide groove (14), a movable plate (15) is installed at the upper end of the sliding block, a linkage plate (16) is rotatably connected to the front end of the movable plate (15), a fixed mounting plate (17) is rotatably connected to the front end of the linkage plate (16), and the fixed mounting plate (17) is fixedly connected with a positioning plate (705).
  7. 7. The unmanned paving speed cooperative control system driven by asphalt mixture properties according to claim 6, wherein two second crawler conveying structures (30) are symmetrically arranged on the inner walls of the two side plates (2) at the upper end of the frame (1), and the two second crawler conveying structures (30) are matched with the thermal insulation bin (4).
  8. 8. The unmanned paving speed cooperative control system driven by asphalt mixture properties according to claim 7, wherein a control processing unit is mounted at the upper end of the frame (1), infrared temperature sensors are respectively mounted at the connection port of the thermal insulation bin (4) and the transition bin (5) and at the side of a discharge port (24) of the paving pipe (9), visual sensors are arranged at the discharge port (24) at the lower end of the paving pipe (9), and resistance heating devices are mounted outside pipelines of the first spiral conveying auger (21) and the second spiral conveying auger (23).
  9. 9. The unmanned paving speed cooperative control system driven by asphalt mixture properties according to claim 8, wherein a driving device connected with a first conveying screw auger (21) is arranged on the outer wall of the transition bin (5), a driving device connected with a second conveying screw auger is arranged inside the paving pipe (9), two hydraulic rods (703) inside the rotating structure (7) are connected with the same hydraulic bin, driving devices connected with a first crawler conveying structure (18) are arranged on the inner sides of the two rotating plates (12), driving devices connected with a second crawler conveying structure (30) are arranged on the inner sides of the two side plates (2), driving devices connected with a grinding roller (20) are arranged inside the mounting frame (19), and the control processing unit is in signal connection with an infrared temperature sensor, a resistance heating device, a visual sensor and a plurality of driving devices.
  10. 10. The unmanned paving speed cooperative control method driven by asphalt mixture properties according to any one of claims 1 to 9, comprising the steps of: S1, preheating and supplying materials, controlling a processing unit to start a resistance heating device outside a first conveying spiral auger pipeline and a second conveying spiral auger pipeline, preheating the pipelines to a preset temperature, simultaneously controlling a second crawler conveying structure (30) to run, conveying asphalt mixture in a thermal insulation bin (4) to the direction of a transition bin (5), and finishing material preparation before paving; S2, adjusting the paving posture, wherein the control processing unit sends an instruction to the hydraulic bin, and drives the rotary structure (7) to enable the heights of the paving pipe (9) and the scraping plate (10) to be matched with the target paving thickness, so that the paving posture is calibrated; s3, material conveying and temperature control, wherein the first conveying spiral auger (21) conveys asphalt in the thermal insulation bin (4) to the conveying bin (8) and the laying pipe (9), the second conveying spiral auger drives the asphalt to be discharged from the discharge port (24), and in the conveying process, the temperature stability is maintained through the resistance heating device and the temperature sensor; S4, unmanned paving, rolling and shaping, namely after asphalt is sent to the ground from a discharge hole (24), performing initial-step leveling by a scraper (10), and performing secondary rolling by a rolling roller (20); S5, air evolution linkage, namely correspondingly adjusting the power of a negative pressure air suction pump (25) of the air purifier (11) by a control processing unit according to temperature data of an infrared temperature sensor, and simultaneously receiving feedback data of a particulate matter concentration sensor (27); S6, unmanned control and early warning are carried out, the control processing unit continuously receives data of each sensor, and if the vision sensor detects mixture segregation and the infrared temperature sensor detects temperature abnormality, the spiral auger rotating speed, heating power or paving speed are automatically adjusted.

Description

Unmanned paving speed cooperative control system and method driven by asphalt mixture properties Technical Field The invention relates to the technical field of engineering machinery, in particular to an unmanned paving speed cooperative control system and method driven by asphalt mixture properties. Background Asphalt paving is a core process of road construction and maintenance, and the construction quality directly determines the service life and traffic safety of a road. The traditional asphalt paving operation is highly dependent on manual operation, operators need to synchronously control the feeding speed, paving posture and road roller follow-up rhythm of a paver in severe environments with high temperature and asphalt smoke pollution, the labor intensity is high, quality defects such as uneven paving thickness and aggregate segregation are easily caused by manual operation errors, and the real-time control precision of the temperature and paving uniformity of the mixture is limited. With the development of intelligent technology, preliminary unmanned paving equipment is developed, but the prior art still has obvious defects that on one hand, the multi-equipment has poor cooperativity, links such as feeding, paving, compacting and the like are mainly controlled independently, unified central scheduling is lacking, the problems of mismatching of material supply and paving speed, rolling follow-up lag and the like are easy to occur, on the other hand, the conventional equipment has insufficient perception and response to key properties such as asphalt mixture temperature, grading and the like, the mixture is easy to solidify and block a conveying pipeline due to temperature loss, and meanwhile, the matched air purifying device is mainly arranged independently, so that the purifying power cannot be dynamically adjusted according to the emission of asphalt smoke, and the purifying efficiency and the energy utilization rate are unbalanced. In addition, the existing unmanned paving control system has the disadvantages that the multi-side equipment movement control is poor in capability of monitoring the state and dynamically adjusting the whole paving process, the scene requirements of different paving thickness and width are difficult to adapt, and the equipment adaptability and the maintenance convenience are poor. Disclosure of Invention The invention aims to provide an unmanned paving speed cooperative control system and method driven by asphalt mixture properties, so as to solve the problems in the background art. The unmanned paving speed cooperative control system and method for the asphalt mixture property driving comprises a frame, wherein crawler belt moving structures are symmetrically arranged at the lower end of the frame, two side plates are symmetrically arranged at the edge positions of two sides of the upper end of the frame, a conveying bin is arranged at the front part of the upper end of the frame, a fixed plate is arranged at the rear part of the upper end of the frame, rotating structures are arranged at the front end of the conveying bin and the rear end of the fixed plate, a conveying bin is arranged at the front end of the rotating structure of the front end of the conveying bin, a paving pipe is arranged at the lower end of the conveying bin, a second conveying spiral auger is arranged in the paving pipe, a transition bin is arranged at the central position of the upper end of the frame, a heat preservation bin is arranged at the rear end of the transition bin, asphalt is filled in the heat preservation bin, and a first conveying spiral auger is arranged among the heat preservation bin, the transition bin, the conveying bin and the conveying bin. Preferably, two air purifiers are symmetrically arranged at the front part of the lower end of the frame, a negative pressure air pump is arranged at the lower end of each air purifier, a filter screen is arranged in each air purifier, an active carbon layer is arranged at the upper end of each filter screen, an air outlet is formed in the front end of each air purifier, and a particle concentration sensor is arranged in each air outlet. Preferably, the upper end central point of laying the pipe puts and has seted up the feed inlet, the feed inlet is linked together with the pay-off storehouse, a plurality of discharge gates have been seted up to the lower extreme equidistance of laying the pipe, is close to the revolution mechanic lower extreme of laying the pipe installs the scraper blade, the cooperation is used between scraper blade and the laying pipe. Preferably, the revolution mechanic includes backup pad, lower axis of rotation, hydraulic stem, goes up rotation board, locating plate and marginal board, the backup pad is installed to the rear end central point of fixed plate put, the axis of rotation is all installed down to the both sides of backup pad, the outside rotation of axis of rotation is connected with the marginal board