An asphalt paving device and method for highway construction

Abstract

The application discloses a kind of asphalt laying device and method for highway construction, including mobile vehicle body, the upper end of the mobile vehicle body is equipped with asphalt mixing tank, the lower end of the asphalt mixing tank is equipped with laying pipe, piston plate is equipped in the laying pipe, the right end of the piston plate is equipped with first guide rod, the right end of the laying pipe is equipped with first guide hole, the first guide rod is matched with the first guide hole, the lower end of the laying pipe is equipped with discharge pipe, the lower end of the mobile vehicle body is equipped with first distance measuring sensor and second distance measuring sensor, the first distance measuring sensor is set to the right end of the discharge pipe, the second distance measuring sensor is set to the left end of the discharge pipe.The asphalt laying device and method for highway construction provided by the application detect the height difference from the ground during the movement of the mobile vehicle body, calculate the thickness of the asphalt to be laid, so as to ensure the preliminary flatness after the asphalt is laid, to facilitate subsequent construction operation.

Description

Technical Field

[0001] This invention belongs to the field of asphalt paving technology, specifically relating to an asphalt paving device and method for highway construction. Background Technology

[0002] Asphalt pavement refers to various types of pavement constructed by mixing road asphalt materials into mineral materials. Asphalt binder improves the ability of paving aggregates to resist damage to the pavement from traffic and natural factors, making the pavement smooth, dust-free, impermeable, and durable. Therefore, asphalt pavement is one of the most widely used high-grade pavements in road construction. During the construction of asphalt pavement, corresponding paving devices are often required for auxiliary construction.

[0003] However, since the road surface to be constructed may be uneven, the thickness of the asphalt to be laid at each section of the road surface will vary. If conventional paving is used, the asphalt may also be uneven after paving, which will increase the workload and intensity of subsequent leveling and compaction work. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an asphalt paving device and method for highway construction.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An asphalt paving device for highway construction includes a mobile vehicle body. An asphalt mixing tank is mounted on the upper end of the mobile vehicle body. A first drive motor is mounted on the upper end of the asphalt mixing tank. A mixing shaft is connected to the lower end of the first drive motor. A plurality of mixing paddles are mounted on the lower end of the mixing shaft. A paving pipe is mounted on the lower end of the asphalt mixing tank. A piston plate is installed inside the paving pipe. A first guide rod is mounted on the right end of the piston plate. A first guide hole is mounted on the right end of the paving pipe. The first guide rod matches the first guide hole. A rack is mounted on the right end of the first guide rod. A servo motor is mounted on the upper end of the mobile vehicle body. A gear is connected to the servo motor. The gear matches the rack. A discharge pipe is mounted on the lower end of the paving pipe. A first distance sensor and a second distance sensor are mounted on the lower end of the mobile vehicle body. The first distance sensor is located on the right end of the discharge pipe, and the second distance sensor is located on the left end of the discharge pipe. A controller is mounted on the upper end of the mobile vehicle body. The first distance sensor, the second distance sensor, and the servo motor are all electrically connected to the controller.

[0007] Furthermore, the lower end of the feeding pipe is provided with an adjusting pipe, the upper end of the adjusting pipe is connected to the lower end of the feeding pipe, the lower end of the adjusting pipe is provided with a plurality of feeding holes evenly distributed, and the two ends of the adjusting pipe are provided with width adjusting mechanisms.

[0008] Furthermore, the width adjustment mechanism includes a push plate and a hydraulic cylinder. The push plate is disposed inside the adjustment tube and is matched with the adjustment tube. The hydraulic cylinder is installed at both ends of the adjustment tube, and one end of the hydraulic cylinder passes through the adjustment tube and is connected to the push plate.

[0009] Furthermore, the mobile vehicle body is equipped with a leveling mechanism, which includes a leveling mounting frame installed at the left end of the asphalt mixing tank. The leveling mounting frame contains a lifting frame and several second guide rods. The lifting frame has several second guide holes, each corresponding to a second guide rod. The upper end of the leveling mounting frame is equipped with a second drive motor, and the lower end of the second drive motor is equipped with a screw. The lifting frame has threaded holes that match the screw. The right end of the lifting frame is equipped with a first support frame, and the lower end of the first support frame is equipped with a scraper plate. The left end of the lifting frame is equipped with a second support frame, and the lower end of the second support frame is equipped with a leveling roller.

[0010] Furthermore, a buffer spring is sleeved on the first guide rod, and the buffer spring is disposed between the piston plate and the laying pipe.

[0011] A method for asphalt paving in highway construction includes the following steps:

[0012] Step 1: Place sufficient asphalt in the asphalt mixing tank, drive the mixing shaft to rotate using the first drive motor, and stir the asphalt stored in the asphalt mixing tank with the mixing paddle to prevent the asphalt from sticking to the wall and solidifying, and then move it to the construction site by a mobile vehicle.

[0013] Step 2: During the movement of the mobile vehicle, the first distance sensor measures the height difference between the road surface and the first distance sensor, and transmits it to the controller to calculate the difference between the road surface and the target height of asphalt, which is the thickness of asphalt to be laid. The controller drives the servo motor to work, and through the cooperation of gears and racks, it precisely pushes and pulls the piston plate to move left and right, so as to control the opening degree of the material pipe and control the speed of asphalt laying, and lays asphalt on the road surface.

[0014] According to the laying path and laying width preset by the controller, the hydraulic cylinder pushes the push plate to move, and the width is adjusted to match the preset laying width by adjusting the push plates on both sides.

[0015] Step 3: During the continuous movement of the moving vehicle, the second ranging sensor measures the height difference between the asphalt paving and the second ranging sensor, and transmits it to the controller to calculate the difference between the road surface and the target asphalt height, that is, to check the error range of the asphalt paving.

[0016] Step 4: During the continuous movement of the mobile vehicle, the scraper first scrapes the laid asphalt, the leveling roller performs preliminary flattening of the laid asphalt, and then the asphalt pavement is flattened and compacted by the asphalt compactor.

[0017] The present invention discloses an asphalt paving device and method for highway construction. Compared with the prior art, its advantages are that it can detect the height difference from the ground during the movement of the mobile vehicle, and calculate the thickness of the asphalt to be paved based on the height difference, so as to ensure the initial flatness after the asphalt is paved, so as to facilitate the subsequent leveling and compaction construction operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the regulating tube according to a preferred embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the leveling mechanism according to a preferred embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the laying pipe according to a preferred embodiment of the present invention.

[0022] The reference numerals in the attached drawings include: 100, mobile vehicle body; 110, first ranging sensor; 120, second ranging sensor; 130, controller; 200, asphalt mixing tank; 210, first drive motor; 220, mixing shaft; 230, mixing paddle; 240, laying pipe; 241, first guide hole; 250, piston plate; 260, first guide rod; 261, rack; 262, buffer spring; 270, gear; 280, discharge pipe; 300, adjusting pipe; 310, hydraulic cylinder; 311, push plate; 320, discharge hole; 400, leveling mounting frame; 410, second guide rod; 420, lifting frame; 421, second guide hole; 430, first support frame; 431, scraper plate; 440, second support frame; 441, leveling roller. Detailed Implementation

[0023] This invention discloses an asphalt paving device and method for highway construction. The specific implementation of this invention will be further described below with reference to preferred embodiments.

[0024] See attached diagram. Figure 1-4 , Figure 1 This is a schematic diagram of a preferred embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of the regulating tube 300 according to a preferred embodiment of the present invention. Figure 3This is a schematic diagram of the leveling mechanism according to a preferred embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the laying pipe 240 according to a preferred embodiment of the present invention.

[0025] Preferred embodiment.

[0026] This embodiment provides an asphalt paving device for highway construction, including a mobile vehicle body 100. An asphalt mixing tank 200 is mounted on the upper end of the mobile vehicle body 100. A first drive motor 210 is mounted on the upper end of the asphalt mixing tank 200. A mixing shaft 220 is connected to the lower end of the first drive motor 210. A plurality of mixing paddles 230 are mounted on the lower end of the mixing shaft 220. A paving pipe 240 is mounted on the lower end of the asphalt mixing tank 200. A piston plate 250 is mounted inside the paving pipe 240. A first guide rod 260 is mounted on the right end of the piston plate 250. A first guide hole 241 is mounted on the right end of the paving pipe 240. The first guide rod 260 matches the first guide hole 241. A rack 261 is provided at the right end of the 60. A servo motor is provided at the upper end of the mobile vehicle body 100. The servo motor is connected to a gear 270, which matches the rack 261. A feeding pipe 280 is provided at the lower end of the laying pipe 240. A first ranging sensor 110 and a second ranging sensor 120 are provided at the lower end of the mobile vehicle body 100. The first ranging sensor 110 is located at the right end of the feeding pipe 280, and the second ranging sensor 120 is located at the left end of the feeding pipe 280. A controller 130 is provided at the upper end of the mobile vehicle body 100. The first ranging sensor 110, the second ranging sensor 120, and the servo motor are all electrically connected to the controller 130.

[0027] Furthermore, the lower end of the feeding pipe 280 is provided with an adjusting pipe 300, the upper end of the adjusting pipe 300 is connected to the lower end of the feeding pipe 280, the lower end of the adjusting pipe 300 is provided with a plurality of feeding holes 320 evenly, and the two ends of the adjusting pipe 300 are provided with width adjusting mechanisms.

[0028] Furthermore, the width adjustment mechanism includes a push plate 311 and a hydraulic cylinder 310. The push plate 311 is disposed inside the adjustment tube 300 and is matched with the adjustment tube 300. The hydraulic cylinder 310 is installed at both ends of the adjustment tube 300, and one end of the hydraulic cylinder 310 passes through the adjustment tube 300 and is connected to the push plate 311.

[0029] Furthermore, the mobile vehicle body 100 is provided with a leveling mechanism, which includes a leveling mounting frame 400. The leveling mounting frame 400 is installed at the left end of the asphalt mixing tank 200. The leveling mounting frame 400 is provided with a lifting frame 420 and a plurality of second guide rods 410. The lifting frame 420 is provided with a plurality of second guide holes 421, and the second guide holes 421 correspond one-to-one with the second guide rods 410. The upper end of the leveling mounting frame 400 is provided with a second drive motor, and the lower end of the second drive motor is provided with a screw. The lifting frame 420 is provided with a threaded hole, and the threaded hole matches the screw. The right end of the lifting frame 420 is provided with a first support frame 430, and the lower end of the first support frame 430 is provided with a scraper plate 431. The left end of the lifting frame 420 is provided with a second support frame 440, and the lower end of the second support frame 440 is provided with a leveling roller 441.

[0030] Furthermore, a buffer spring 262 is sleeved on the first guide rod 260, and the buffer spring 262 is disposed between the piston plate 250 and the laying tube 240.

[0031] A method for asphalt paving in highway construction includes the following steps:

[0032] Step 1: Place sufficient asphalt in the asphalt mixing tank 200, drive the mixing shaft 220 to rotate through the first drive motor 210, and stir the asphalt stored in the asphalt mixing tank 200 with the mixing paddle 230 to prevent the asphalt from sticking to the wall and solidifying, and then move it to the construction site by the mobile vehicle 100.

[0033] Step 2: During the movement of the mobile vehicle 100, the first distance sensor 110 measures the height difference between the road surface and the first distance sensor 110, and transmits it to the controller 130 to calculate the difference between the road surface and the target height of asphalt, which is the thickness of asphalt to be laid. The controller 130 drives the servo motor to work, and through the cooperation of the gear 270 and the rack 261, it precisely pushes and pulls the piston plate 250 to move left and right, so as to control the opening degree of the feed pipe 280 and control the speed of asphalt laying, and lays asphalt on the road surface.

[0034] According to the laying path and laying width preset by the controller 130, the hydraulic cylinder 310 pushes the push plate 311 to move, and adjusts it to be consistent with the preset laying width by adjusting the push plates 311 on both sides.

[0035] Step 3: During the continuous movement of the moving vehicle 100, the second ranging sensor 120 measures the height difference between the asphalt paving and the second ranging sensor 120, and transmits it to the controller 130 to calculate the difference between the road surface and the target height of the asphalt, that is, to check the error range of the asphalt paving.

[0036] Step 4: During the continuous movement of the moving vehicle 100, the scraper plate 431 first scrapes the laid asphalt to level it, the leveling roller 441 performs preliminary flattening on the laid asphalt, and then the asphalt pavement is flattened and compacted by the asphalt flattening machine.

[0037] It is worth mentioning that the technical features of the controller 130, motor, asphalt compactor and other related technologies involved in this patent application should be regarded as prior art. The specific structure, working principle and control method and spatial arrangement of these technical features can be adopted by conventional choices in the field and should not be regarded as the inventive point of this patent. This patent will not be further elaborated in detail.

[0038] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. An asphalt paving device for road construction, characterized by, The utility model relates to a mobile asphalt mixing device, which comprises a mobile vehicle body (100), an asphalt mixing tank (200) arranged at the upper end of the mobile vehicle body (100), a first driving motor (210) arranged at the upper end of the asphalt mixing tank (200), a stirring shaft (220) connected to the lower end of the first driving motor (210), a plurality of stirring paddles (230) arranged at the lower end of the stirring shaft (220), a laying pipe (240) arranged at the lower end of the asphalt mixing tank (200), a piston plate (250) arranged in the laying pipe (240), a first guide rod (260) arranged at the right end of the piston plate (250), a first guide hole (241) arranged at the right end of the laying pipe (240), the first guide rod (260) being matched with the first guide hole (241), a rack (261) arranged at the right end of the first guide rod (260), a servo motor arranged at the upper end of the mobile vehicle body (100), a gear (270) connected to the servo motor, the gear (270) being matched with the rack (261), a discharging pipe (280) arranged at the lower end of the laying pipe (240), a first distance measuring sensor (110) and a second distance measuring sensor (120) arranged at the lower end of the mobile vehicle body (100), the first distance measuring sensor (110) being arranged at the right end of the discharging pipe (280), the second distance measuring sensor (120) being arranged at the left end of the discharging pipe (280), a controller (130) arranged at the upper end of the mobile vehicle body (100), the first distance measuring sensor (110), the second distance measuring sensor (120) and the servo motor being electrically connected to the controller (130). The lower end of the discharging pipe (280) is provided with an adjusting pipe (300), the upper end of the adjusting pipe (300) is communicated with the lower end of the discharging pipe (280), the lower end of the adjusting pipe (300) is uniformly provided with a plurality of discharging holes (320), and the two ends of the adjusting pipe (300) are provided with width adjusting mechanisms. The width adjusting mechanism comprises a push plate (311) and a hydraulic cylinder (310), the push plate (311) is arranged in the adjusting pipe (300), the push plate (311) is matched with the adjusting pipe (300), and one end of the hydraulic cylinder (310) penetrates through the adjusting pipe (300) and is connected with the push plate (311). The mobile vehicle body (100) is provided with a leveling mechanism, the leveling mechanism comprises a leveling mounting frame (400), the leveling mounting frame (400) is installed at the left end of the asphalt mixing tank (200), the leveling mounting frame (400) is provided with a lifting frame (420) and a plurality of second guide rods (410), the lifting frame (420) is provided with a plurality of second guide holes (421), the second guide holes (421) correspond to the second guide rods (410) one by one, the upper end of the leveling mounting frame (400) is provided with a second driving motor, the lower end of the second driving motor is provided with a screw rod, the lifting frame (420) is provided with a threaded hole, the threaded hole is matched with the screw rod, the right end of the lifting frame (420) is provided with a first support frame (430), the lower end of the first support frame (430) is provided with a scraping plate (431), the left end of the lifting frame (420) is provided with a second support frame (440), the lower end of the second support frame (440) is provided with a leveling roller (441).

2. The asphalt paving device for road construction according to claim 1, wherein The first guide rod (260) is provided with a buffer spring (262), and the buffer spring (262) is arranged between the piston plate (250) and the laying pipe (240).

3. A method of paving an asphalt road according to claim 1, characterized in that the paving device is used. The method comprises the following steps: Step one: place enough asphalt in the asphalt mixing tank (200), drive the stirring shaft (220) to rotate through the first driving motor (210), and stir the asphalt stored in the asphalt mixing tank (200) through the stirring paddle (230) to avoid wall sticking and condensation, so that the asphalt is moved to the construction site through the mobile vehicle body (100); Step two: during the movement of the mobile vehicle body (100), the first distance measuring sensor (110) measures the height difference of the road surface to the first distance measuring sensor (110) and transmits it to the controller (130) to calculate the difference between the road surface and the asphalt target height, that is, the thickness of the asphalt to be laid, and the controller (130) drives the servo motor to work, and through the cooperation of the gear (270) and the rack (261), the piston plate (250) is accurately pushed and pulled left and right to control the opening degree of the discharging pipe (280) to control the paving speed of the asphalt, and the asphalt is paved on the road surface; According to the preset paving path and paving width of the controller (130), the hydraulic cylinder (310) pushes the push plate (311) to move, and adjusts the distance between the two push plates (311) to be consistent with the preset paving width; Step three: during the continuous movement of the mobile vehicle body (100), the second distance measuring sensor (120) measures the height difference of the laid asphalt to the second distance measuring sensor (120) and transmits it to the controller (130) to calculate the difference between the road surface and the asphalt target height, that is, the error range of the laid asphalt; Step four: during the continuous movement of the mobile vehicle body (100), the scraping plate (431) first scrapes the laid asphalt, the leveling roller (441) preliminarily flattens the laid asphalt, and then the asphalt road is flattened and compacted by using the asphalt flattening machine.

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