Integrated roadbed paver and construction method thereof

Abstract

The present application relates to road construction machinery, particularly a kind of integrated roadbed paver and its construction method. Including sandstone grading conveying system, dry-wet separation deployment system, earthwork rough leveling system and earthwork compaction system, sandstone grading conveying system is placed in the front of conveying frame, dry-wet separation deployment system is placed in the rear of conveying frame, the front end of conveying frame is provided with traction beam and is connected with transport vehicle;The rear end of conveying frame is connected with earthwork rough leveling system;The rear end of earthwork rough leveling system is connected with earthwork compaction system.The present application integrates rough leveling, rolling, watering, layering compaction and other processes in roadbed construction into one, can improve construction efficiency, reduce construction interval waiting time, shorten construction period;Through electrification means, strictly control roadbed paving loose paving thickness and moisture content, and carry out dynamic adjustment, reduce the influence of artificial subjective factors on construction quality in process, improve construction quality;Save a lot of manpower, reduce labor cost, improve economic benefit.

Description

Technical Field

[0001] This invention relates to road construction machinery, particularly an integrated roadbed paver and its construction method. Background Technology

[0002] In the field of highway engineering, subgrade construction is particularly important, as its quality directly affects the service life of the highway. Subgrade engineering is the longest-running sub-project in highway construction, involving numerous quality control indicators such as compaction degree, moisture content, deflection value, and thickness. Subgrade construction involves many procedures, including unloading, rough leveling, watering, rolling, and layered compaction, any of which can impact the overall quality of the subgrade construction. Currently, the level of integration in subgrade construction is low, resulting in complex construction nodes requiring quality control. Given the long overall construction period and numerous procedures, there is a lack of integrated construction equipment and methods for subgrade construction. Summary of the Invention

[0003] The present invention aims to solve the above-mentioned technical problems, thereby providing an integrated roadbed paver and its construction method, improving the integration level of roadbed construction and increasing construction efficiency.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows:

[0005] An integrated roadbed paver includes a sand and gravel gradation conveying system, a dry and wet separation and mixing system, an earthwork rough leveling system, and an earthwork compaction system.

[0006] The sand and gravel gradation conveying system is located at the front of the conveying frame, the dry and wet separation and blending system is located at the rear of the conveying frame, and the front end of the conveying frame is equipped with a traction beam and connected to the transport vehicle.

[0007] The rear end of the conveyor frame is connected to an earthwork rough leveling system;

[0008] The earthwork rough leveling system is connected to an earthwork compaction system at its rear end.

[0009] The construction method for the aforementioned integrated roadbed paver is as follows:

[0010] S1. Preparations

[0011] Check that the equipment is operating normally, take soil, layer and grade it, and transfer it to the transport vehicle; fill the water tank with water.

[0012] S2. The roadbed paver starts and construction work begins;

[0013] S3. The transport vehicle slowly raises the truck bed and pours the graded sand and gravel into the lower hopper via the conveyor belt;

[0014] S4. The soil thickness monitor monitors the soil layer thickness in real time and feeds the data back to the main control display screen to adjust the feeding speed. The moisture content monitor monitors the moisture content of sand and gravel in real time and feeds the data back to the main control display screen to adjust the moisture content of graded sand and gravel.

[0015] S5. After adjusting the thickness and moisture content of the sand and gravel according to the construction requirements, the drainage pipe starts to work, spraying water evenly onto the surface of the sand and gravel, and the sand and gravel are evenly and loosely spread onto the roadbed through the discharge port.

[0016] S6. The earthwork rough leveling system operates simultaneously, with the loosely laid sand and gravel to the roadbed passing through the rough leveling claw, rough leveling shovel and rough leveling wheel to achieve initial leveling.

[0017] S7. Finally, the final leveling and compaction are carried out by single-axis three-wheel smooth roller, sheep's foot roller and vibratory flat roller.

[0018] S8. Complete the integrated paving of the roadbed, and carry out measurement and slope trimming.

[0019] Compared with the prior art, the present invention, which adopts the above technical solution, has the following beneficial effects:

[0020] 1) Integrating the rough leveling, rolling, watering and layered compaction processes in roadbed construction into one can improve construction efficiency, reduce construction interval waiting time and shorten the construction period;

[0021] 2) By using electrification methods, the loose thickness and moisture content of the roadbed paving are strictly controlled and dynamically adjusted to reduce the impact of subjective human factors on construction quality and improve construction quality.

[0022] 3) Setting different types of compaction rollers allows for the selection of appropriate compaction rollers according to construction needs. At the same time, the compaction process can be carried out immediately after watering and moisturizing, further ensuring that compaction can be carried out under qualified moisture content and improving construction quality.

[0023] 4) Saves a lot of manpower, reduces labor costs, and improves economic efficiency.

[0024] Furthermore, the optimized solution of the present invention is:

[0025] The sand and gravel gradation conveying system includes a guide rail plate, a first drive shaft, a second drive shaft, a conveyor wheel, a conveyor belt, a geared motor, and a sand and gravel conveying trough. The first drive shaft and the second drive shaft are respectively located at both ends of the guide rail plate and are rotatably connected to the guide rail plate. The two ends of the first drive shaft are respectively equipped with conveyor wheels. The conveyor belt is wrapped around the first drive shaft and the second drive shaft and is driven by the conveyor wheels. The first drive shaft is driven by the geared motor. The sand and gravel conveying trough is located at the front end of the conveyor belt.

[0026] The dry and wet separation and mixing system includes a support base, a lower hopper, an upper hopper, and a water spraying device. The lower hopper is located at the rear end of the support base, and the upper hopper is located above the lower hopper. A spring cover is rotatably installed at the inlet end of the upper hopper. Material gates are respectively provided at the outlet ends of the lower and upper hoppers. A water spraying device is installed above the inlet end of the lower hopper.

[0027] The water spraying device includes a drain pipe, a support, nozzles, and a water tank. There are two drain pipes arranged symmetrically. The drain pipes are arc-shaped and have multiple nozzles installed at the bottom. One end of the drain pipe is rotatably connected to the support. The support is inverted U-shaped and connected to the lower hopper. The other end of the drain pipe is rotatably connected to a fixed shaft through a rotating sleeve. The fixed shaft is fixed to the support and has a knob screwed on its inner end to tighten the rotating sleeve. The drain pipe is connected to the water tank through a pipeline.

[0028] The earthmoving rough leveling system includes a frame, a rotating chassis, a steering tie rod, rough leveling claws, a rough leveling shovel, rough leveling wheels, and a control mechanism. The frame is inverted L-shaped, with first wheels installed on both sides of the vertical part of the frame. The rotating chassis is located below the horizontal part of the frame. The rotating chassis is equipped with the rough leveling claws, the rough leveling shovel, and the rough leveling wheels in sequence from front to back. The rotating chassis is connected to one end of the steering tie rod, and the other end of the steering tie rod is hinged to the vertical part of the frame. A control mechanism is provided between the rotating chassis and the horizontal part of the frame.

[0029] The control mechanism includes a connecting seat, a control arm, a steering rod, and a hydraulic arm. The horizontal part of the frame is provided with a connecting seat, and connecting lugs are provided on both sides of the connecting seat. The connecting lugs are hinged to one end of the steering rod. One side of the steering rod is hinged to the upper end of the hydraulic arm. The lower end of the hydraulic arm is hinged to the rotating chassis. The lower end of the steering rod is provided with a control arm. The control arms on both sides are hinged to each other by an arc-shaped connecting rod.

[0030] The rotating chassis includes a chassis body and a connecting hook. The chassis body is semi-circular in shape, and connecting structures are provided at both ends of the chassis body. The chassis body is connected to the coarse flat claw through a coarse flat connector and a coarse flat connecting shaft. The coarse flat shovel is connected to the connecting structure. The two ends of the coarse flat connector are provided with chord beams. The rear end of the chord beams is rotatably connected to the triangular coarse flat wheel through a connecting frame.

[0031] The earthwork compaction system includes a rear frame, a second wheel, connecting guide rails, a vibratory roller, a sheep's foot roller, and a single-axle three-wheeled smooth roller. The second wheel is installed at the bottom of the rear frame, and connecting guide rails are symmetrically arranged on both sides of the rear frame. The front end of the connecting guide rails is connected to the earthwork rough leveling system. The single-axle three-wheeled smooth roller, sheep's foot roller, and vibratory roller are rotatably connected to the connecting guide rails in sequence from front to back. The two ends of the sheep's foot roller are connected to the connecting guide rails through radial lifting mechanisms. An eccentric vibratory machine is installed at the bottom of the rear frame.

[0032] It also includes a main control and monitoring system, which includes a central controller, a display screen, a soil thickness monitor, and a moisture content monitor. The moisture content monitor is placed on the side plate of the lower hopper, and the soil thickness monitor is placed on the guide rail plate of the sand and gravel gradation conveying system. Attached Figure Description

[0033] Figure 1 This is an isometric view of an embodiment of the present invention;

[0034] Figure 2 This is a front view of an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of a sand and gravel gradation conveying system according to an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of a dry and wet separation and preparation system according to an embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of the earthwork rough leveling system according to an embodiment of the present invention;

[0038] Figure 6 This is a schematic diagram of the control mechanism of the earthwork rough leveling system according to an embodiment of the present invention;

[0039] Figure 7 for Figure 6 The main view;

[0040] Figure 8 This is a schematic diagram of an earthwork compaction system according to an embodiment of the present invention;

[0041] Figure 9 This is a schematic diagram of the radial lifting mechanism of the earthwork compaction system according to an embodiment of the present invention;

[0042] Figure 10 This is a schematic diagram of the main control monitoring system according to an embodiment of the present invention.

[0043] In the diagram: 1. Conveyor frame; 101. Traction beam; 2. Sand and gravel gradation conveying system; 201. Track bolt; 202. Transmission track; 203. First transmission shaft; 204. Locking screw; 205. Second transmission shaft; 206. Sand and gravel conveying trough; 207. Trough edge; 208. Conveyor wheel; 209. Conveyor belt; 210. Guide rail plate; 211. Gear motor; 3. Dry and wet separation and mixing system; 301. Fixed connector; 302. Material gate; 303. Upper hopper; 304. Spring cover plate; 305. Rotating shaft; 306. Water inlet pipe; 307. Lower support. 307 Hopper; 308 Connecting Bolt; 309 Support; 310 Direction Adjustment Knob; 311 Drain Pipe; 312 Nozzle; 313 Bearing Base; 314 Water Tank Cover; 315 Connecting Clamp; 316 Water Tank; 317 Water Outlet; 4. Earthwork Rough Leveling System; 401 Frame; 402 Control Arm; 4021 Connecting Rod; 403 Connecting Seat; 404 Steering Rod; 405 Hydraulic Arm; 406 Chord Beam; 407 Ball Head; 408 Rotating Chassis; 4081 Chassis Body; 4082 Connecting Hook; Rough Leveling Connector Connector 409; Rough flat connecting shaft 410; Steering wheel 411; Control panel 412; Central controller 413; Driver's seat 414; Fixing bolt 415; Mudguard 416; First wheel 417; Connecting plate 418; Drive shaft 419; Bearing 420; Connecting block 421; Steering tie rod ball joint 422; Steering tie rod 423; Rough flat wheel 424; Rough flat shovel 425; Rough flat claw 426; Earth compaction system 5; Rear frame 501; Coil spring 502; Shock absorber 503; Two wheels 504; Eccentric vibratory roller 505; Radial lifting mechanism 506; First linear module 5061; Second linear module 5062; Vibratory roller 507; Sheep's foot roller 508; Connecting guide rail 509; Single-axle three-wheel smooth roller 510; Main control monitoring system 6; Central controller 601; Sand and gravel conveying speed adjustment knob 602; Water flow speed adjustment knob 603; Soil thickness monitor 604; Display screen 605; Switch assembly 606; Moisture content monitor 607; Transport vehicle 7; Rear axle 701. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] See Figure 1 , Figure 2 This embodiment provides an integrated roadbed paver, mainly composed of a conveyor frame 1, a sand and gravel gradation conveying system 2, a dry and wet separation and mixing system 3, an earthwork rough leveling system 4, an earthwork compaction system 5, and a main control and monitoring system 6. The conveyor frame 1 is a welded component with a rectangular bottom and an arc-shaped top. Traction beams 101 are installed on both sides of the front end of the conveyor frame 1. The traction beams 101 are inverted L-shaped, and the lower end of their vertical parts are rotatably connected to the rear axle 701 of the transport vehicle 7.

[0047] The sand and gravel gradation conveying system 2 is installed at the front of the conveyor frame 1. The sand and gravel gradation conveying system 2 mainly consists of track bolts 201, drive rails 202, first drive shafts 203, locking screws 204, second drive shafts 205, sand and gravel conveying troughs 206, trough edges 207, conveying wheels 208, conveyor belts 209, guide rail plates 210, and reduction motors 211. Figure 3 (As shown). Two guide rail plates 210 are arranged in parallel and connected to the conveyor frame 1 by locking screws 204 on the outer side. A first drive shaft 203 is rotatably mounted between the front ends of the two guide rail plates 210 through bearing seats. Transmission wheels 208 are mounted at both ends of the first drive shaft 203. The transmission wheels 208 are sprockets. Two second drive shafts 205 are rotatably mounted between the rear ends of the two guide rail plates 210 through bearing seats. The diameter of the second drive shafts 205 is smaller than the diameter of the first drive shaft 203. A conveyor belt 209 is wrapped around the first drive shaft 203 and the two second drive shafts 205. The conveyor belt 209 is driven by the transmission wheels 208. The first drive shaft 203 is driven by a geared motor 211, which is mounted on the outer side of the guide rail plate 210.

[0048] Each guide rail plate 210 has a longitudinal transmission rail 202 on its inner side. The transmission rail 202 is located at the bottom edge of the conveyor belt 209 and supports the conveyor belt 209. Both ends of the transmission rail 202 are connected to the support rods by rail bolts 201, and the support rods are fixedly connected to the guide rail plate 210. The sand and gravel conveying trough 206 is located at the front end of the conveyor belt 209. The sand and gravel conveying trough 206 is fixedly connected to the conveyor frame 1. The bottom sides of the sand and gravel conveying trough 206 are respectively provided with trough edges 207. The sand and gravel conveying trough 206 is connected to the hopper of the transport vehicle through a chute. When in use, the sand and gravel conveying trough is placed diagonally below the truck bed of the transport vehicle 7. The transport vehicle 7 is a dump truck. After the truck bed is tilted up, the sand and gravel can fall into the conveyor belt 209 along the chute and the sand and gravel conveying trough 206. The trough edges 207 on both sides can block the sand and gravel. At the same time, the reduction motor 211 is started by the main controller to provide power to the conveyor belt 209, so that the conveyor belt 209 moves forward along the transmission track 202. Finally, the graded sand and gravel is poured into the dry and wet separation and blending system 3.

[0049] The dry and wet separation and mixing system 3 is installed at the rear of the conveyor frame 1. The dry and wet separation and mixing system 3 mainly consists of a fixed connector 301, a material gate 302, an upper hopper 303, a spring cover plate 304, a rotating shaft 305, a lower hopper 307, connecting bolts 308, a bearing base 313, and a water spraying device. Figure 4 (As shown). The support base 313 is rectangular and is mounted on the conveyor frame 1. A lower support hopper 307 is installed at the rear end of the support base 313, and an upper support hopper 303 is installed on the upper part of the lower support hopper 307. Both the lower support hopper 307 and the upper support hopper 303 have rectangular cross-sections. A material gate 302 is installed at the outlet end of both the lower support hopper 307 and the upper support hopper 303. The outlet ends of the lower support hopper 307 and the upper support hopper 303 are respectively connected to the conveyor frame 1 through a fixed connector 301. A spring cover plate 304 is installed on the outer side of the inlet end of the upper support hopper 303. Rotating shafts 305 are welded to both ends of the bottom of the spring cover plate 304. The rotating shafts 305 are rotatably connected to the fixed plate. The fixed plate is welded to the side plate of the upper support hopper 303. A positioning plate is provided on the outer side of the lower part of the spring cover plate 304. The positioning plate is welded to the fixed plate. The positioning plate is equipped with connecting bolts 308. The connecting bolts 308 are used for positioning the spring cover plate 304. The spring cover plate 304 is used to distinguish between dry materials and wet materials.

[0050] A water sprinkler system is installed on the upper part of the inlet end of the lower hopper 307. The water sprinkler system mainly consists of an inlet pipe 306, a support 309, a direction adjustment knob 310, a drain pipe 311, a nozzle 312, a water tank cover 314, a connecting clamp 315, and a water tank 316. Figure 4 (As shown). Two drain pipes 311 are symmetrically arranged and are arc-shaped. One end of the drain pipe 311 is rotatably connected to a support 309, which is an inverted U-shape and connected to the top plate of the lower hopper 307. The other end of the drain pipe 311 is rotatably connected to a fixed shaft via a rotating sleeve. The fixed shaft is fixedly connected to the support 309. The angle of the drain pipe 311 is adjustable, and a direction adjustment knob 310 for tightening the rotating sleeve is screwed onto the inner end of the fixed shaft. Multiple nozzles 312 are installed at the bottom of the drain pipe 311. The drain pipe 311 is connected to a water inlet pipe 306 via a pipeline. The water inlet pipe 306 passes through the side plate of the lower hopper 307 and is connected to the water outlet 317 of the water tank 316 via a pipeline. The water tank 316 is mounted on the support base 313 via a connecting clamp 315, and a water tank cover 314 is installed on the top of the water tank 316.

[0051] After the sand and gravel are poured into the lower hopper 307, the dry and wet separation and mixing system begins operation. The upper hopper 303 mainly spreads dry sand and gravel, and the specific type of sand and gravel spread can be controlled by the spring cover plate 304 rotating around the rotating shaft 305. If the sand and gravel enters the lower hopper 307, water from the water tank 316 is drawn into the drain pipe 311 through the water outlet 317 via the water pipe, and then sprayed onto the surface of the sand and gravel under the control of the main controller, and finally falls onto the roadbed through the material gate 302. A connecting rod and a hydraulic cylinder can also be installed on the rotating shaft 305 at one end of the spring cover plate 304, and the spring cover plate 304 is controlled by the hydraulic cylinder.

[0052] The rear end of the conveyor frame 1 is equipped with an earthwork rough leveling system 4, the earthwork rough leveling system 4 ( Figure 5 (As shown) It mainly consists of a frame 401, control arm 402, connecting seat 403, steering rod 404, hydraulic arm 405, chord beam 406, ball joint 407, rotating chassis 408, coarse flat connector 409, coarse flat connecting shaft 410, steering wheel 411, control panel 412, central controller 413, driver's seat 414, fixing bolt 415, mudguard 416, first wheel 417, connecting plate 418, drive shaft 419, bearing 420, connecting block 421, steering tie rod ball joint 422, steering tie rod 423, coarse flat wheel 424, coarse flat shovel 425 and coarse flat claw 426. The frame 401 is inverted L-shaped, with its horizontal front end fixedly connected to the conveyor frame 1. Drive shafts 419 are mounted on both sides of the vertical section of the frame 401. A first wheel 417 is mounted on the drive shaft 419 via bearings 420. A connecting plate 418 is rotatably mounted on the outer side of the drive shaft 419. A mudguard 416 is positioned above the first wheel 417. From front to back, a central control unit 413, a steering wheel 411, and a driver's seat 414 are mounted on the upper part of the vertical section of the frame 401. The driver's seat 414 is connected to the frame 401 via fixing bolts 415.

[0053] A rotating chassis 408 is located below the horizontal section of the frame 401. The rotating chassis 408 consists of a chassis body 4081 and a connecting structure 4082. The chassis body 4081 is semi-circular with its open end facing the vertical section of the frame 401. Connecting structures 4082 are located at the bottom of both ends of the chassis body 4081. The front end of the bottom of the chassis body 4081 is connected to a horizontal coarse flat connecting shaft 410 via a coarse flat connector 409. Multiple coarse flat claws 426 are installed at the bottom of the coarse flat connecting shaft 410, and a coarse flat shovel 425 is installed on the front side of the connecting structure 4082. Longitudinal chord beams 406 are installed at both ends of the coarse flat connector 409. The rear end of the chord beams 406 is rotatably connected to a coarse flat wheel 424 via a portal-shaped connecting frame. The coarse flat wheel 424 is triangular.

[0054] A steering tie rod 423 is provided between the rotating chassis 408 and the vertical part of the frame 401. The steering tie rod 423 is V-shaped and horizontally arranged. The front end of the steering tie rod 423 is connected to both ends of the chassis body 4081. The rear end of the steering tie rod 423 is equipped with a steering tie rod ball joint 422. The steering tie rod ball joint 422 is hinged to the connecting block 421. The connecting block 421 is fixedly connected to the vertical part of the frame 401.

[0055] A control mechanism is provided between the rotating chassis 408 and the horizontal part of the frame 1. The control mechanism mainly consists of a control arm 402, a connecting seat 403, a steering rod 404, a hydraulic arm 405, and a connecting rod 4021. Figure 6 , Figure 7 As shown), the connecting seat 403 is U-shaped and is fitted onto the horizontal part of the frame 401. Connecting lugs are provided on both sides of the open end of the connecting seat 403. The two connecting lugs are respectively hinged to the inner end of the steering rod 404. One side of the outer end of the steering rod 404 is hinged to the upper end of the hydraulic arm 405. The hydraulic arm 405 is a hydraulic cylinder. The lower ends of the two hydraulic arms 405 are respectively hinged to the two ends of the chassis body 4081. The lower end of the steering rod 404 is fixedly connected to the control arm 402. The control arms 402 on both sides are hinged to each other through an arc-shaped connecting rod 4021.

[0056] The earthmoving rough leveling system 4 is equipped with three different rough leveling devices via a frame 401. The front rough leveling claw 426 can remove larger gravel from the earthwork and roughly level the ground. The middle rough leveling shovel 425 is similar to a regular grader, but it can be manually operated via the steering wheel 411, which drives the rotating chassis 408 connected to the control arm 402, hydraulic arm 405, and steering rod 404, to move the rough leveling shovel 425 axially. This allows the large gravel plowed by the rough leveling claw 426 to be pushed obliquely to both sides of the road and roughly leveled. The steering wheel 411 is connected to a hydraulic control valve. The rear uses a triangular flat wheel 424, whose radial movement can be adjusted via the control panel 412 based on the earthwork thickness, thereby controlling the thickness of the roadbed earthwork.

[0057] The earthwork rough leveling system 4 is connected to the earthwork compaction system 5 at its rear end. The earthwork compaction system 5 mainly consists of a rear frame 501, a helical spring 502, a shock absorber 503, a second wheel 504, an eccentric vibratory mill 505, a radial lifting mechanism 506, a vibratory roller 507, a sheep's foot roller 508, a connecting guide rail 509, and a single-axle three-wheel smooth roller 510. Figure 8(As shown). A second wheel 504 is installed at the bottom of the rear frame 501. The tires of the second wheel 504 are special rubber tires. Connecting guide rails 509 are symmetrically arranged on both sides of the rear frame 501. The front end of the connecting guide rail 509 is fixedly connected to the connecting plate 418 of the earthmoving rough leveling system 4. The single-axle three-wheel smooth roller 510, sheep's foot roller 508, and vibratory roller 507 are rotatably connected to the connecting guide rail 509 from front to back. The vibratory roller 507 is located at the front end of the connecting guide rail 509. An eccentric vibrator 505 is provided at the bottom of the rear frame 501. The eccentric vibrator 505 is existing technology. The two ends of the sheep's foot roller 508 are respectively connected to the connecting guide rail 509 through a radial lifting mechanism 506. The radial lifting mechanism 506 is composed of a first linear module 5061 and a second linear module 5062 arranged symmetrically. Figure 9 As shown), each linear module consists of a base, lead screw, lead screw nut, slide block, slide rail, drive wheel and servo motor. The first linear module 5061 and the second linear module 5062 are commercially available finished products. The first linear module 5061 and the second linear module 5062 are arranged vertically and the base is fixedly connected to the connecting guide rail 509 respectively. The two ends of the mill shaft of the sheep's foot mill 508 are connected to the slide blocks of the two linear modules respectively through bearing seats.

[0058] During on-site construction, the up-and-down movement of the sheep's foot roller 508 can be adjusted via the radial lifting mechanism 506 to determine whether it is used. Generally, the final rolling flatness, precision and compaction requirements are the highest, so a vibratory flat roller 507 is used. The rear frame 501 has an eccentric vibrator 505 built in as the vibration power source. The vibration kinetic energy is transmitted to the special rubber tire of the second wheel 504 through the helical spring 502 and the shock absorber 503 to reduce the kinetic energy and prevent the equipment from loosening due to excessive vibration amplitude.

[0059] The main control monitoring system 6 mainly consists of a central controller 601, a sand and gravel conveying speed adjustment knob 602, a water flow speed adjustment knob 603, a soil layer thickness monitor 604, a display screen 605, a switch assembly 606, and a moisture content monitor 607. Figure 10 (As shown). The main controller 601 is installed on the conveyor frame 1. The main controller 601 is equipped with a control board and a display screen 605. The control board is equipped with a sand and gravel conveying speed adjustment knob 602, a water flow speed adjustment knob 603, and a switch assembly 606. The sand and gravel conveying speed adjustment knob 602 is used to control the speed of the reduction motor 211, and the water flow speed adjustment knob 603 is used to control the flow regulating valve, which is installed on the inlet pipe 306. The moisture content monitor 607 is placed on the side plate of the lower hopper 307, and the soil layer thickness monitor 604 is placed on the guide rail plate 210 of the sand and gravel gradation conveying system 2. The main controller 601 is the central brain of the entire equipment. It can control the switching and operation of various system mechanisms and can make real-time adjustments based on the monitoring feedback data to ensure that the moisture content and compaction degree of the roadbed paving meet the construction requirements.

[0060] The construction method for the aforementioned integrated roadbed paver is carried out according to the following steps:

[0061] S1. Construction Preparation

[0062] Check if the equipment is operating normally, take soil and grade it into layers and transfer it to transport vehicle 7, and fill water tank 316 with water;

[0063] S2. The roadbed paver starts and construction work begins;

[0064] S3, transport vehicle 7 slowly raises the bucket, and the graded sand and gravel are poured into the lower support hopper 307 and the upper support hopper 303 through the conveyor belt 209;

[0065] S4, Soil layer thickness monitor 604 monitors in real time and feeds the data back to the main control display screen to adjust the feeding speed; Lower layer moisture content monitor 607 monitors the moisture content of sand and gravel in real time and feeds the data back to the main control display screen to adjust the moisture content of graded sand and gravel.

[0066] S5. After adjusting the thickness and moisture content of the sand and gravel according to the construction requirements, the drainage pipe 312 starts working, spraying water evenly onto the surface of the sand and gravel, and the sand and gravel are evenly and loosely spread onto the roadbed through the discharge port.

[0067] S6, earthwork rough leveling system 4 synchronous operation, with another person working in the cab to assist in the operation, the sand and gravel loosened to the roadbed pass through the rough leveling claw 426, rough leveling shovel 425 and rough leveling wheel 424 to achieve initial leveling.

[0068] S7. Finally, the single-axis three-wheel smooth roller 510, sheep's foot roller 508, and vibratory flat roller 507 are used for final leveling and compaction. The three rollers can be raised or lowered by the radial lifting mechanism 506 as needed.

[0069] S8. Complete the integrated paving of the roadbed, and carry out measurement and slope trimming.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An integrated road base paver characterised in that: The utility model relates to a kind of earthwork rough leveling systems, including sand and stone grading delivery system, dry-wet separation allocation system, earthwork rough leveling system and earthwork compaction system, the sand and stone grading delivery system is placed in the front of conveying frame, dry-wet separation allocation system is placed in the rear of conveying frame, the front end of conveying frame is equipped with traction beam and is connected with transport vehicle;The rear end of the conveying frame is connected with the earthwork rough leveling system;The rear end of the earthwork rough leveling system is connected with the earthwork compaction system;The dry-wet separation allocation system includes bearing base, lower hopper, upper hopper and sprinkler, the rear end of bearing base is equipped with lower hopper, the upper portion of lower hopper is equipped with upper hopper, the inlet end of upper hopper is rotatably installed with spring cover, the outlet end of lower hopper and upper hopper is equipped with material door respectively, the upper portion of lower hopper inlet end is installed with sprinkler;The sprinkler includes drain pipe, support, sprayer and water tank, drain pipe is two and symmetrically arranged, drain pipe is arc-shaped and is installed with multiple sprayers at bottom, one end of drain pipe is rotatably connected with support, support is inverted U-shaped and is connected with lower hopper, the other end of drain pipe is rotatably connected with fixed shaft through rotating sleeve, fixed shaft is fixedly connected with support and inner end is rotatably installed with knob of compression rotating sleeve, drain pipe is communicated with water tank by pipeline;The earthwork compaction system includes rear frame, second wheel, connecting guide rail, vibration flat roller, sheep foot roller and single axle three-wheel smooth roller, the bottom of rear frame is installed with second wheel, the both sides of rear frame are symmetrically equipped with connecting guide rail, the front end of connecting guide rail is connected with the earthwork rough leveling system, single axle three-wheel smooth roller, sheep foot roller and vibration flat roller are rotatably connected with connecting guide rail from front to back, the both ends of sheep foot roller are connected with connecting guide rail by radial lifting mechanism respectively, the bottom of rear frame is equipped with eccentric vibrator; The earthwork rough leveling system includes frame, rotating chassis, steering cross link, rough leveling claw, rough leveling shovel, rough leveling wheel and control mechanism, frame is inverted L-shaped, the both sides of vertical portion of frame are installed with first wheel respectively, the lower of horizontal portion of frame is equipped with rotating chassis, rough leveling claw, rough leveling shovel and rough leveling wheel are installed in rotating chassis from front to back, rotating chassis is connected with one end of steering cross link, the other end of steering cross link is hinged with vertical portion of frame, control mechanism is arranged between rotating chassis and horizontal portion of frame; Still include main control monitoring system, main control monitoring system includes master controller, display screen, soil layer thickness monitor and moisture content monitor, moisture content monitor is placed on the side plate of lower hopper, soil layer thickness monitor is placed on the guide rail plate of sand and stone grading delivery system.

2. The integrated mat paver of claim 1, wherein: The sand and stone grading delivery system includes guide rail plate, first transmission shaft, second transmission shaft, conveying wheel, conveying belt, speed reduction motor and sand and stone conveying groove, first transmission shaft and second transmission shaft are respectively placed in the both ends of guide rail plate and rotatably connected with guide rail plate, the both ends of first transmission shaft are installed with conveying wheel respectively, conveying belt is wound around first transmission shaft and second transmission shaft and is driven by conveying wheel, first transmission shaft is driven by speed reduction motor, sand and stone conveying groove is located in the front end of conveying belt.

3. The integrated matroller of claim 1, wherein: The control mechanism comprises a connecting seat, control arms, a steering rod and a hydraulic arm, the horizontal part of the frame is provided with the connecting seat, both sides of the connecting seat are respectively provided with connecting lug seats, the connecting lug seats are hingedly connected with one end of the steering rod, one side of the steering rod is hingedly connected with the upper end of the hydraulic arm, the lower end of the hydraulic arm is hingedly connected with the rotating chassis, the lower end of the steering rod is provided with the control arms, and the control arms on both sides are hingedly connected through the arc-shaped connecting rods.

4. The integrated matroller of claim 1, wherein: The rotating chassis comprises a chassis body and connecting hooks, the chassis body is in a semicircular arc shape, both ends of the chassis body are respectively provided with the connecting hooks, the chassis body is connected with the rough flat claw through a rough flat connector and a rough flat connecting shaft, the rough flat shovel is connected with the connecting structure; both ends of the rough flat connector are respectively provided with chord beams, the rear ends of the chord beams are rotationally connected with the rough flat wheels in a triangular shape through connecting frames.

5. A construction method of the integrated roadbed paving machine according to any one of claims 1-4, which is performed according to the following steps: S1, preparation work checks whether the equipment can normally operate, takes the soil layering and grading to the transport vehicle, and fills the water tank with water; S2, the roadbed paving machine is started, and the construction operation is started; S3, the transport vehicle slowly lifts the hopper, and the graded gravel is poured into the lower receiving hopper through the conveying belt; S4, the soil layer thickness monitor monitors in real time and feeds back the data to the total control display screen, the feeding speed is adjusted, the water content monitor monitors the water content of the gravel in real time and feeds back the data to the total control display screen, and the water content of the graded gravel is adjusted; S5, after the gravel thickness and water content are adjusted according to the construction requirements, the drain pipe starts to work, uniformly sprays water to the surface of the gravel, and the gravel is uniformly and loosely laid to the roadbed through the discharge port; S6, the earthwork rough flat system synchronously operates, and the gravel loosely laid to the roadbed is sequentially passed through the rough flat claw, the rough flat shovel and the rough flat wheel to achieve preliminary leveling; S7, finally, the single-axle three-wheel smooth roller, the sheep foot roller and the vibrating flat roller are used for final leveling and rolling; S8, the integrated roadbed paving operation is completed, and the measurement and the side slope trimming are performed.

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