An asphalt paver and a roller for mounting the asphalt paver

Abstract

The application discloses a kind of asphalt spreader and install the roller of this asphalt spreader, it is related to highway laying technical field, including fixed frame, adjusting device is installed on fixed frame, and adjusting device is installed on spreader device;Adjusting device includes lifting device and inclination device;Lifting device lifts spreader device, for controlling its height with ground, controls overall asphalt paving thickness;Inclination device controls the inclination of spreader device, for controlling its paving direction thickness difference;Spreader device is screw distributor.After the structure is used, lifting device drives spreader device to lift, inclination device controls the inclination of spreader device, to realize before rolling to asphalt layer flatness and thickness adjustment, to guarantee the thickness of asphalt layer after rolling is qualified.

Description

Technical Field

[0001] This invention relates to the field of highway paving technology, and in particular to an asphalt paver and a roller for installing the asphalt paver. Background Technology

[0002] In the construction of existing asphalt roads, the paving method is generally used. However, this paving method has the following problems: 1. In the actual construction process, because the asphalt is spread unevenly by the paver, the middle of the road section is lower on the inside and higher on the outside, causing water accumulation in the middle of the road and easily leading to safety accidents; 2. Motor vehicles generally concentrate on driving on the inner side of the road, while the edge of the road is a non-motorized vehicle lane. Therefore, in actual use, the road in the position where motor vehicles drive is easily damaged. Summary of the Invention

[0003] The purpose of this invention is to provide an asphalt paver and a roller for installing the asphalt paver. By installing the asphalt paver in front of the roller and changing the inclination angle of the asphalt paver, a thickness difference is created in the width direction of the asphalt road, thereby ensuring that water flows down from the inside to the outside and that the asphalt thickness of the motor vehicle lane is increased, thus improving the overall service life of the road.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: an asphalt paver, comprising a fixed frame, an adjustment device mounted on the fixed frame, and a paving device mounted on the adjustment device; the adjustment device includes a lifting device and an tilting device; the lifting device lifts the paving device to control its height above the ground and control the overall asphalt paving thickness; the tilting device controls the tilt angle of the paving device to control the thickness difference in its paving direction; the paving device is a auger spreader.

[0005] With the above structure, the paving device is raised and lowered by the lifting device, and the tilting device controls the tilt angle of the paving device, thereby adjusting the flatness and thickness of the asphalt layer before compaction, thus ensuring that the thickness of the asphalt layer is qualified after compaction.

[0006] To ensure the stability of the lifting process, the lifting device includes a base plate that is slidably mounted on a fixed frame. A lifting drive device is provided between the base plate and the fixed frame, which drives the base plate to slide up and down on the fixed frame.

[0007] In order to reasonably control the lifting height, a ruler is also provided on the top of the base plate, and a ruler hole is provided on the fixing frame for the ruler to pass through.

[0008] To facilitate control of the tilt angle, the tilting device includes a mounting plate hinged to the base plate, and a tilting drive device is provided between the mounting plate and the base plate, which drives the mounting plate to rotate.

[0009] To reduce equipment investment while achieving precise control of the tilt angle, the tilt drive device includes a screw rotatably mounted on the base plate, with the screw perpendicular to the hinge axis of the mounting plate; a sliding nut is mounted on the screw and slidably mounted on the base plate, and a knob is provided at one end of the outer side of the screw; one end of the mounting plate is hinged to the sliding nut via a connecting rod; a rotating sleeve is also fitted on the screw, and the rotating sleeve is fixed to the base plate, with a scale on one side of the knob, and a pointer corresponding to the scale is provided on the knob.

[0010] To lock the tilt angle, a limit plate is fixed on the base plate, and a limit post is set on the mounting plate. The limit plate has an arc-shaped slide for the limit post to slide on. A locking nut is set at the end of the limit post that extends out of the arc-shaped slide. After the mounting plate angle is adjusted, tighten the locking nut to lock the position of the limit plate and the limit post.

[0011] To achieve uniform material distribution, the spiral distributor includes a spreading trough with an open bottom and baffles on both sides. Push plates are mounted on the baffle supports on both sides, and the distance between the bottom of the push plates and the ground determines the thickness of the asphalt to be laid. The baffles and push plates together form the spreading trough. Spiral blades are rotatably installed between the baffles inside the spreading trough. The bottom of the spiral blades does not protrude from the bottom of the push plates.

[0012] To achieve the cyclical transportation of asphalt, the inside of the paving trough is divided into two parallel paving bins by a partition. The partition is parallel to the push plate and its bottom does not protrude from the bottom of the push plate. The two paving bins are connected at their ends. Each paving bin is equipped with a rotating helical blade, and the two helical blades convey material in opposite directions.

[0013] To facilitate cutting, the bottom of the pusher plate has an arc-shaped cutting edge extending towards the spiral blade, with the cutting edge parallel to the ground; the bottom of the partition plate is similar in shape to the bottom of the pusher plate.

[0014] A roller compactor for mounting the aforementioned asphalt paver includes a roller with a mounting bracket fixed to the front end support of the roller's rollers.

[0015] By adopting the above structure, an asphalt paver is installed in front of the roller, and the inclination angle of the asphalt paver is changed, so that there is a thickness difference in the width direction of the asphalt road. This ensures that water flows down from the inside to the outside, while ensuring that the asphalt thickness of the motor vehicle lane is increased, thereby improving the overall service life of the road.

[0016] After adopting the above technical solution, the beneficial effects of the present invention are:

[0017] This invention relates to a roller compactor equipped with an asphalt paver, which solves the technical problem in the prior art where uneven asphalt layer thickness leads to substandard asphalt roads when rollers compact asphalt layers. This invention installs an asphalt paver in front of the roller compactor and changes the inclination angle of the asphalt paver to create a thickness difference in the width direction of the asphalt road. This ensures that water flows down from the inside to the outside while simultaneously increasing the thickness of the asphalt in the vehicle lanes, thereby improving the overall service life of the road. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a roller compactor for installing an asphalt paver according to the present invention;

[0019] Figure 2 This is a schematic diagram of an asphalt paver.

[0020] Figure 3 yes Figure 2 Schematic diagram of the regulating device;

[0021] Figure 4 yes Figure 2 Schematic diagram of the paving device;

[0022] Figure 5 yes Figure 4 Internal structure diagram;

[0023] Figure 6 A schematic diagram of the paving device in operation.

[0024] In the diagram, 1. Fixed frame, 12. Threaded hole, 13. Sliding hole, 2. Adjusting device, 21. Lifting device, 211. Base plate, 212. Top rod, 213. Guide rod, 214. Scale, 215. Hinge seat, 22. Tilting device, 221. Mounting plate, 23. Tilting drive device, 231. Screw, 232. Knob, 233. Sliding nut, 234. Connecting rod, 235. Dial, 236. Limiting plate, 237. Arc-shaped slide, 238. Locking nut, 3. Paving device, 31. Baffle, 32. Pusher plate, 33. Partition, 34. Spiral blade, 4. Protective cover, 5. Road roller. Detailed Implementation

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] The orientations mentioned in this specification are based on the orientation of the asphalt paver and the roller installed on it during normal operation, and do not limit their orientation during storage and transportation. They only represent relative positional relationships and do not represent absolute positional relationships.

[0027] Example 1:

[0028] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown in the figure, an asphalt paver includes a fixing frame 1, an adjusting device 2 installed on the fixing frame 1, and a paving device 3 installed on the adjusting device 2.

[0029] like Figure 3 As shown, the adjusting device 2 includes a lifting device 21 and a tilting device 22; the lifting device 21 lifts the paving device 3 to control its height above the ground, thereby controlling the overall asphalt paving thickness; the tilting device 22 controls the tilt angle of the paving device 3 to control a certain thickness difference in the width direction of the paved asphalt. In this invention, the paving device 3 is a spiral spreader.

[0030] The lifting device 21 includes a base plate 211 that is slidably mounted on a fixed frame 1. A plurality of guide rods 213 are symmetrically fixed to the top of the base plate 211. There can be two or four guide rods 213; this embodiment does not limit this. The fixed frame 1 is provided with sliding holes 13 that mate with the guide rods 213. The guide rods 213 can slide up and down within the sliding holes 13. Through the cooperation of the guide rods 213 and the sliding holes 13, the base plate 211 is slidably mounted on the fixed frame 1.

[0031] A lifting drive device is provided between the base plate 211 and the fixed frame 1. The lifting drive device drives the base plate 211 to slide up and down on the fixed frame 1. The lifting drive device can be an electric cylinder or an electric push rod, etc. If an electric cylinder is used, the installation method is as follows: the electric cylinder is fixed on the fixed frame 1, and the output shaft of the electric cylinder is fixed on the top of the base plate 211. The lifting and lowering of the base plate 211 is controlled by the extension and retraction of the electric cylinder. In this embodiment, the lifting drive device includes a push rod 212 rotatably mounted on the top of the base plate 211. The push rod 212 is threaded in the circumferential direction. The fixed frame 1 is provided with a threaded hole 12 that mates with the thread. A rotation drive device is provided on the top of the push rod 212. The rotation drive device can be automatic, such as a motor; or manual, such as a handwheel. In this embodiment, in order to reduce costs, the rotation drive device is a handwheel. The rotation of the push rod 212 is controlled by rotating the handwheel, thereby driving the base plate 211 to slide up and down.

[0032] In order to reasonably control the lifting height, a ruler 214 is also provided on the top of the base plate 211. The fixed frame 1 is provided with a ruler hole for the ruler 214 to pass through. By reading the size of the ruler 214 protruding from the fixed frame 1, the lifting height can be known.

[0033] The tilting device 22 includes a mounting plate 221 hinged to the base plate 211. In this invention, a hinge seat 215 is fixed in the middle of the base plate 211. A tilting drive device 23 is provided between the mounting plate 221 and the base plate 211. The tilting drive device 23 drives the mounting plate 221 to rotate, thereby generating a certain tilt angle with the base plate 211.

[0034] The tilting drive device 23 can be a pneumatic cylinder, an electric cylinder, or other push rod structure. For example, if an electric push rod is used, its two sides can be hinged to the mounting plate 221 and the base plate 211 respectively. The extension and retraction of the electric push rod controls the rotation of the mounting plate 221 around the hinge seat 215. In this embodiment, for stability control, the tilting drive device 23 includes a screw 231 rotatably mounted on the base plate 211. The screw 231 is perpendicular to the hinge axis of the mounting plate 221. A sliding nut 233 is mounted on the screw 231 and slidably mounted on the base plate 211. A knob 232 is provided at one outer end of the screw 231. To increase friction, a fingerprint pattern is provided on the knob 232. By rotating the knob 232, the screw 231 rotates, thereby causing the sliding nut 233 to slide along the direction of the screw 231.

[0035] The mounting plate 221 is provided with a connecting seat, which is hinged to the sliding nut 233 via a connecting rod 234. That is, the two ends of the connecting rod 234 are respectively hinged to the mounting plate 221 and the sliding nut 233. When the sliding nut 233 slides, the connecting rod 234 pulls or pushes the mounting plate 221 to rotate around the hinge seat 215, thereby causing the mounting plate 221 and the base plate 211 to have a certain tilt angle.

[0036] To ensure accurate tilt angle values, a rotating sleeve is fitted onto the screw 231. The rotating sleeve is fixed to the base plate 211. A scale 235 is located on one side of the knob 232, and a pointer corresponding to the scale 235 is provided on the knob 232.

[0037] To enhance the locking function, a limit plate 236 is fixed on the base plate 211. An arc-shaped slide 237 is provided on the limit plate 236. A limit post is fixed on the mounting plate 221. The limit post extends out of the arc-shaped slide 237. When the mounting plate 221 rotates, the limit post slides along the arc-shaped slide 237.

[0038] A locking nut 238 is screwed onto one end of the limiting post extending from the arc-shaped slide 237. After the angle of the mounting plate 221 is adjusted, the locking nut 238 is tightened, and the position of the limiting plate 236 and the limiting post is locked.

[0039] The paving device 3 is fixedly installed on the mounting plate 221 and can be installed by bolts.

[0040] like Figure 4 , Figure 5 and Figure 6 As shown, the paving device 3 includes a paving trough with an open bottom and baffles 31 on both sides, which serve to laterally limit the asphalt. A pusher plate 32 is fixed between the baffles 31, and the distance between the bottom of the pusher plate 32 and the ground determines the thickness of the asphalt. The baffles 31 and the pusher plate 32 form the paving trough. A spiral blade 34 is rotatably installed between the baffles 31 inside the paving trough. The bottom of the spiral blade 34 does not protrude beyond the bottom of the pusher plate 32, and is preferably flush with the bottom of the pusher plate 32. When the paving device 3 moves forward, the asphalt layer first contacts the spiral blade 34, and then contacts the pusher plate 32. The spiral blade 34 guides the asphalt layer above the pusher plate 32, while the pusher plate 32 completely cuts the asphalt layer above the pusher plate 32 and pushes the excess asphalt forward, so that the spiral blade 34 gradually transports the excess asphalt to the other side, ensuring that the asphalt layer over the entire lateral distance is consistent with the bottom of the pusher plate 32.

[0041] To ensure that the pusher plate 32 can cut the asphalt layer more effortlessly while moving forward, and to facilitate the drainage of excess asphalt, the bottom of the pusher plate 32 is provided with an arc-shaped cutting edge extending towards the spiral blade 34. The cutting edge is parallel to the ground. When the pusher plate 32 moves forward, the cutting edge contacts the asphalt layer and cuts off the asphalt above the cutting edge. Then, the asphalt is pushed into the spiral blade 34 by the guiding action of the arc-shaped structure above the arc-shaped cutting edge. As the spiral blade 34 moves forward and is guided, when the asphalt passes through a certain suspended section (i.e., the asphalt layer is lower than the arc-shaped cutting edge), the asphalt will be pushed to this point, thereby filling the suspended section and realizing the uniform re-spreading of the uneven asphalt layer.

[0042] However, the asphalt conveying direction is not necessarily the same as that of the suspended section. Therefore, to ensure that the asphalt can circulate back and forth throughout the process and to prevent asphalt from accumulating on one side of the paving trough, the paving trough is divided into two parallel paving bins by a partition 33. The partition 33 is parallel to the pusher plate 32 and its bottom does not protrude from the bottom of the pusher plate 32. That is, the bottom of the partition 33 can be higher than the bottom of the pusher plate 32 or flush with the bottom of the pusher plate 32. Each paving bin is equipped with a rotating helical blade 34, and the two helical blades 34 convey material in opposite directions.

[0043] In this embodiment, the bottom of the partition plate 33 is higher than the bottom of the pusher plate 32, so the partition plate 33 first cuts and spreads the asphalt layer, and then the pusher plate 32 performs a second cutting and spreading, thereby dispersing the pushing pressure. The bottom of both ends of the partition plate 33 is provided with connecting ports, which connect the beginning and end of the two paving bins, thereby realizing the reciprocating circulation of asphalt.

[0044] Because the partition 33 has a certain pushing function, its structure is similar to that of the pusher plate 32. An arc-shaped cutting blade extending away from the pusher plate 32 is provided at the bottom of the partition 33.

[0045] To ensure the strength of the pusher plate 32 and the partition plate 33, reinforcing ribs are provided on their backs.

[0046] In order to protect the adjusting device 2 and the paving device 3 and to prevent personnel injury, the adjusting device 2 and the paving device 3 are covered with a protective cover 4. The top of the protective cover 4 is provided with a through hole for the guide rod 213, the rotating drive device and the scale 214 to extend out; the side is provided with a clearance hole for the knob 232, the dial 235 and the locking nut 238 to extend out.

[0047] Example 2:

[0048] like Figure 1 As shown, a roller compactor for installing an asphalt paver according to Embodiment 1 includes a roller 5, and a fixing frame 1 is fixed on the front end support of the roller 5.

[0049] When the roller 5 moves forward to compact the asphalt layer, it drives the asphalt paver forward. During this movement, the spiral blades 34 of the paving bin on the side away from the pusher plate 32 come into contact with the asphalt layer, first conveying some of the asphalt in its conveying direction. Then, the cutting edge of the partition plate 33 comes into contact with the asphalt layer and completely cuts off the asphalt above the cutting edge. Then, the asphalt is pushed into the spiral blades 34 by the guiding action of the arc structure above the arc cutting edge. As the spiral blades 34 move forward, they are also guided to the side. When the asphalt passes through a certain suspended section (i.e., the asphalt layer is lower than the arc cutting edge), the asphalt will be pushed to this point, thereby filling the suspended section and achieving the re-paving of the uneven asphalt layer. The excess asphalt enters another paving bin from the connecting port. Under the action of the spiral blades 34, the asphalt is guided in the opposite direction. At the same time, the pusher plate 32 performs secondary cutting and the spiral blades 34 performs secondary paving.

[0050] Through two cutting and paving processes, and the repeated circulation of asphalt, the uniformity of the asphalt is ensured during compaction by the road roller.

[0051] To increase the height of the road center and the lower height of the road edges, the tilting device 22 can be used to adjust the tilt angle of the partition plate 33 and the pusher plate 32 to ensure that the asphalt layer paved at the bottom has a certain tilt angle, thereby avoiding rainwater accumulation.

[0052] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An asphalt paver, characterized in that: It includes a fixing frame, on which an adjustment device is installed, and on which a paving device is installed; The adjusting device includes a lifting device and a tilting device; the lifting device lifts the paving device to control its height above the ground and control the overall asphalt paving thickness; the tilting device controls the tilt angle of the paving device to control the thickness difference in its paving direction. The paving device is a spiral spreader; The spiral spreader includes a spreading trough with an open bottom and baffles on both sides; push plates are mounted on the baffle supports on both sides, and the distance between the bottom of the push plates and the ground determines the thickness of the asphalt to be laid; the baffles and push plates form the spreading trough; a spiral blade is rotatably installed inside the spreading trough between the baffles; the bottom of the spiral blade does not protrude from the bottom of the push plates. The material spreading trough is divided into two parallel material spreading bins by a partition. The partition is parallel to the pusher plate and its bottom does not protrude from the bottom of the pusher plate. The two material spreading bins are connected at their ends. Each material spreading bin is rotatably installed with a spiral blade, and the two spiral blades convey material in opposite directions. The lifting device includes a base plate that is slidably mounted on the fixed frame, and a lifting drive device is provided between the base plate and the fixed frame, which drives the base plate to slide up and down on the fixed frame; The tilting device includes a mounting plate hinged to the base plate, and a tilting drive device is provided between the mounting plate and the base plate, the tilting drive device driving the mounting plate to rotate; The tilting drive device includes a screw rotatably mounted on the base plate, the screw being perpendicular to the hinge axis of the mounting plate; a sliding nut is mounted on the screw, the sliding nut being slidably mounted on the base plate, and a knob is provided at one outer end of the screw; one end of the mounting plate is hinged to the sliding nut via a connecting rod; a rotating sleeve is also fitted on the screw, the rotating sleeve being fixed to the base plate, and a scale is provided on one side of the rotating sleeve near the knob, with a pointer corresponding to the scale on the knob; A limiting plate is fixed on the base plate, and a limiting post is provided on the mounting plate. An arc-shaped slide is provided on the limiting plate for the limiting post to slide. A locking nut is provided at one end of the limiting post that extends out of the arc-shaped slide. After the angle of the mounting plate is adjusted, the locking nut is tightened, and the positions of the limiting plate and the limiting post are locked.

2. An asphalt paver according to claim 1, characterized in that: The top of the base plate is also provided with a ruler, and the fixing frame is provided with a ruler hole for the ruler to pass through.

3. An asphalt paver according to claim 1, characterized in that: The bottom of the pusher plate has an arc-shaped cutting edge extending towards the spiral blade, and the cutting edge is parallel to the ground; the bottom of the partition plate is similar in shape to the bottom of the pusher plate.

4. A compactor for installing an asphalt paver according to any one of claims 1-3, characterized in that: The device includes a road roller, and the mounting bracket is fixed to the front end support of the roller.

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