CN-117845710-B - Vehicle-mounted automatic compacting device for repairing asphalt pavement

CN117845710BCN 117845710 BCN117845710 BCN 117845710BCN-117845710-B

Abstract

The invention discloses a vehicle-mounted automatic compaction device for repairing an asphalt pavement, which belongs to the technical field of machinery for road construction and comprises a mounting frame and a compaction roller assembly, wherein the mounting frame is connected with a frame, the compaction roller assembly is driven by a swinging part to move left and right along a long track below the mounting frame, a front push plate is arranged in front of a compression roller of the compaction roller assembly, two ends of the front push plate are connected with the compression roller frame of the compaction roller assembly through an adjusting mechanism, and pressure is applied to the compression roller through a hydraulic system. The mounting frame is connected with the frame by virtue of a pin shaft, so that the mounting frame is convenient to assemble and disassemble, the swinging component drives the press roller to move left and right, repairing of pit slots is realized under the static state of a vehicle, and redundant asphalt mixture is pushed away by a front push plate at the front side, so that the compacting high-pressure requirement is met. The hydraulic system is used for controlling the grounding pressure of the compression roller, realizing the compaction effect of light pressure and heavy pressure and providing guarantee for the rapid maintenance of the asphalt pavement.

Inventors

LI SHAOHUA
SUN ZHIQI
HAN JINNUO
YANG SHAOPU
YANG YANG
SONG YUEHUI
MI YANCHAO
LI BINGLIANG
GUO WENWU

Assignees

石家庄铁道大学

Dates

Publication Date: 20260505
Application Date: 20240202

Claims (6)

1. The vehicle-mounted automatic compaction device for repairing the asphalt pavement is characterized by comprising a mounting frame and a compaction roller assembly arranged below the mounting frame, wherein the top of the mounting frame can be connected with the frame, a long rail is horizontally arranged below the bottom of the mounting frame, the compaction roller assembly can be in sliding fit with the long rail, the compaction roller assembly is connected with a swinging component, and the swinging component can drive the compaction roller assembly to move left and right on the long rail; The height of the front push plate from the ground is determined by the formula (3): (3) Wherein H is the virtual paving height of the asphalt mixture, and H is the height of the front push plate from the ground; The compaction roller assembly comprises a compression roller frame and a compression roller below the compression roller frame, wherein a scraping plate is arranged below the front side of the compression roller frame and used for scraping asphalt mixture on the compression roller; the upper side edge of the scraping plate is fixed on a long shaft of the scraping plate, and two ends of the long shaft of the scraping plate are connected with the press roller frame; the length of the press roll is determined by formula (4): (4) Wherein q is the load of a ground wire of the press roll, 300N/cm is taken, m f is the load of a mounting frame, m 0 is the mass of the press roll, and L is the length of the press roll; The diameter d of the press roll is determined by formula (5): (5) the vertical load is applied to the compression roller through the hydraulic system of the frame, the compression roller rolls forwards at a constant speed in the compaction process of repairing the pavement, and the consumed energy is rotational inertia And the kinetic energy of the press roller ; The kinetic energy of the press roller is the advancing kinetic energy of the wheel center of the press roller, m is the mass of the press roller, and v represents the speed; the force analysis of the press rolls was as follows: (1) Wherein F is the thrust of the press roller, P is the vertical load applied by the hydraulic system to the press roller, R X and R Y are the reaction force of the ground to the press roller, K is the vertical distance from the resultant force point of reaction to the center of the press roller, a n is the horizontal distance from the resultant force point of reaction to the center of the press roller, and the dynamic balance relation in the formula (1) is: (2) the energy required by the thrust of the compression roller in working is obtained by superposing the rotational inertia of the compression roller and the energy consumed by forward movement; The compaction work is controlled by controlling the load P borne by the press roller through the hydraulic system, when repairing the pit, asphalt mixture is filled in the pit, the load on the press roller is firstly regulated for final pressing after a plurality of times, and the load borne by the press roller in final pressing is larger than that borne by the press roller in initial pressing.
2. The vehicle-mounted automatic compaction device for repairing asphalt pavement according to claim 1, wherein the top of the mounting frame is connected with the frame through a plurality of pin shafts, two long tracks which are arranged in parallel front and back are arranged below the bottom surface of the mounting frame, two ends of the long tracks are connected with the mounting frame through fixing blocks, two guide holes matched with the long tracks are formed in the top of the compression roller frame, the swinging component is arranged between the two long tracks and at one end of the mounting frame, and the movable end of the swinging component is connected with the compression roller frame.
3. The vehicle-mounted automatic compaction device for asphalt pavement repair according to claim 1, wherein the swinging component comprises a hydraulic sleeve and a swinging rod, the end part of the hydraulic sleeve is connected with the mounting frame through a hinge shaft, hydraulic oil is arranged in the hydraulic sleeve and controlled by a hydraulic system of the vehicle frame, one end of the swinging rod is connected with a piston in the hydraulic sleeve, and the other end of the swinging rod is connected with the compression roller frame.
4. The vehicle-mounted automatic compaction device for asphalt pavement restoration according to claim 1, wherein the front pushing plate is a rectangular plate, the length of the front pushing plate is larger than that of the compression roller, and a row of comb teeth are arranged at the lower part of the front pushing plate.
5. The vehicle-mounted automatic compaction device for repairing asphalt pavement according to claim 1, wherein the adjusting mechanism comprises a bent plate, a triangular pulling plate, a lower connecting rod and a middle connecting rod, the front pushing plate is fixed at the front end of the bent plate, the upper end of the rear side of the bent plate is rotationally connected with the front end of the triangular pulling plate, the lower end of the rear side of the bent plate is rotationally connected with the front end of the lower connecting rod, the rear end of the lower connecting rod and the lower end of the triangular pulling plate are rotationally connected with an end cover of a compression roller frame, the upper rear end of the triangular pulling plate is rotationally connected with the front end of the middle connecting rod, the lower connecting rod is parallel to the bottom edge of the triangular pulling plate, the rear end of the middle connecting rod is rotationally connected with the lower end of a driving rod, the driving end of the driving rod is rotationally connected with the tail end of a piston rod of an adjusting hydraulic cylinder, and the adjusting hydraulic cylinder is arranged on the side face of the compression roller frame.
6. The vehicle-mounted automatic compaction device for asphalt pavement restoration according to claim 1, wherein the number of the compression rollers is multiple, the compression rollers are arranged in series, a roll shaft is arranged in the middle of the compression roller in the middle position, square seats connected with the compression roller frames are arranged at two ends of the compression roller, and an outer spherical bearing with a seat is further arranged on the outer side of the square seat and used for installing the roll shaft of the outer side compression roller.

Description

Vehicle-mounted automatic compacting device for repairing asphalt pavement Technical Field The invention belongs to the technical field of machinery for road construction, and particularly relates to a vehicle-mounted automatic compaction device for repairing an asphalt pavement. Background At present, the total mileage of highway construction in China is over 500 ten thousand kilometers. Among them, asphalt pavement has advantages of flat surface, no seam, small vibration, etc., and is the most commonly used pavement type. Because of the problems of poor construction process, short construction period and the like in construction, a large number of ruts, pits and other diseases can occur on the asphalt pavement, and the highway in China enters the period of road maintenance. In the maintenance of asphalt roads, the compaction process is a key link in construction, is a key technology for compacting and forming asphalt mixtures, and is a final process for ensuring the stability of the road structure after repair. Compacting machinery is a major participant and plays a vital role in road maintenance construction. The compacting machine is a working machine which utilizes the methods of self weight, vibration, impact, oscillation and the like of the machine to repeatedly load compacted materials, so that the internal structure of the compacting machine is rearranged, internal air gaps and moisture are removed, and the compacting machine achieves relatively stable deformation and has certain bearing capacity. The existing asphalt pavement compacting machine comprises a static type road roller and a tire type road roller, is mainly suitable for paving a large-area pavement by rolling under the dead weight during working, consumes labor and takes too much time, but is very inconvenient to repair when encountering small pits. In addition, the hot asphalt mixture needed for repairing the asphalt pavement at present is directly conveyed to a construction site by an asphalt mixing station through a transport vehicle with a heat preservation bin, or the stored cold asphalt mixture is heated for recycling, or the aggregate and the hot asphalt are mixed on site at the construction site through special equipment, so that the feeding cost is high, a great amount of time is needed for mixing the aggregate and the hot asphalt at the construction site, and the repairing speed of the asphalt pavement is seriously influenced. Disclosure of Invention In order to solve the problems, the invention provides a vehicle-mounted automatic compacting device for repairing an asphalt pavement. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: A vehicle-mounted automatic compacting device for repairing asphalt pavement comprises a mounting frame and a compacting roller assembly arranged below the mounting frame, wherein the top of the mounting frame can be connected with a frame, a long rail is horizontally arranged below the bottom of the mounting frame, the compacting roller assembly can be in sliding fit with the long rail, the compacting roller assembly is connected with a swinging component, the swinging component can drive the compacting roller assembly to move left and right on the long rail, a front pushing plate is arranged in front of a pressing roller of the compacting roller assembly, two ends of the front pushing plate are connected with a pressing roller frame of the compacting roller assembly through an adjusting mechanism, the front pushing plate is used for pushing redundant asphalt mixture in front of the pressing roller, and a vertical load is applied to the pressing roller through a hydraulic system of the frame. Further, the top of the mounting frame is connected with the frame through a plurality of pin shafts, two long tracks which are arranged in parallel front and back are arranged below the bottom surface of the mounting frame, two ends of each long track are connected with the mounting frame through fixing blocks, two guide holes matched with the long tracks are formed in the top of the compression roller frame, the swinging component is arranged between the two long tracks and at one end of the mounting frame, and the movable end of the swinging component is connected with the compression roller frame. Further, the swinging component comprises a hydraulic sleeve and a swinging rod, wherein the end part of the hydraulic sleeve is connected with the mounting frame through a hinge shaft, hydraulic oil is arranged in the hydraulic sleeve and controlled by a hydraulic system of the frame, one end of the swinging rod is connected with a piston in the hydraulic sleeve, and the other end of the swinging rod is connected with the compression roller frame. Further, the compaction roller assembly comprises a compression roller frame and compression rollers below the compression roller frame, a scraping plate is arranged below the front side of the compression roller frame