CN117904926A - Asphalt pavement construction tamping device and method - Google Patents

Abstract

The invention discloses a device and a method for compacting asphalt pavement construction, which relate to the technical field of vibration compaction and comprise a compaction hammer vertically and slidably arranged in a compaction support, wherein a transmission assembly is used for expanding or retracting an inclined plane support block along the radius direction of the compaction hammer, when the inclined plane support block is retracted into a mounting groove, the bottom surface of the compaction hammer and a plurality of inclined plane support blocks jointly form a compaction surface, a plurality of annular compaction hammers form a compaction ring, and a first driving assembly is used for driving the annular compaction hammers to vertically reciprocate. According to the invention, the transmission assembly is used for controlling the inclined support block to expand or retract along the radius direction of the tamping hammer, the conical cavity is formed by expanding the inclined support block and the inner wall of the pit, and the conical ring inside the conical cavity is tamped and extruded by the annular tamping hammer, so that the conical ring is better adhered to the inner wall of the pit, the connection between the repairing layer and the original pavement is enhanced, the layering of the repairing layer and the original pavement is avoided, and the secondary repairing cost is increased.

Description

Asphalt pavement construction tamping device and method

Technical Field

The invention relates to the technical field of vibration compaction, in particular to a device and a method for compacting asphalt pavement construction.

Background

The asphalt pavement vibrating compaction device is an important device used in road construction, mainly relates to paving, vibrating and compacting of asphalt concrete, compactly compacts scattered asphalt concrete materials through vibrating and compacting actions, ensures uniformity and compactness of a pavement, and improves bearing capacity and durability of the pavement;

For example, chinese patent publication No. CN213925751U discloses a device for vibrating and compacting asphalt pavement for highway construction, wherein a plurality of groups of pushing balls push a force-bearing plate downwards together with a compacting plate to vibrate and compact the asphalt pavement, and the pushing balls have an elliptical ball structure, and drive the compacting plate to vertically reciprocate to vibrate and compact the asphalt pavement in the rotation process;

However, when facing the pits, the conical cylinder and the surface layer need to be filled, and the surface layer repair is a common pavement repair method, when carrying out the surface layer repair, asphalt mixture needs to be paved on the pavement, then the paved pavement is tamped, the stressed plate and the compacting plate are downwards pushed by the groups of pushing balls to vibrate and press the asphalt pavement in real time, the repaired pavement is tamped simply, good adhesion between the repair layer and the original pavement cannot be ensured, and the repair layer and the original pavement can be layered, so that the pavement can be sunk and the pits, the flatness and the travelling comfort of the pavement are affected, and the secondary repair cost is increased.

Disclosure of Invention

The invention aims to provide an asphalt pavement construction tamping device and an asphalt pavement construction tamping method, which aim to solve at least one technical problem in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an asphalt pavement construction ramming device and method, includes ramming support and auxiliary ramming support go on the connecting plate that removes, still includes;

the tamping hammer is vertically and slidably arranged in the tamping bracket, a plurality of annular array mounting grooves are formed in the bottom surface of the tamping hammer, and inclined plane supporting blocks are slidably arranged in each mounting groove;

The transmission assembly is used for expanding or retracting the inclined support blocks along the radius direction of the rammer, when the inclined support blocks retract into the mounting groove, the bottom surface of the rammer and the plurality of inclined support blocks jointly form a ramming surface, and the radius of the ramming surface is the same as that of the rammer;

a plurality of annular ramming hammers which are annularly distributed on the outer wall of the ramming hammer, wherein the annular ramming hammers form a ramming ring;

The first driving assembly is used for driving the annular rammer to vertically reciprocate;

and the second driving assembly is used for driving the rammer to vertically reciprocate.

Preferably, the transmission assembly comprises a rotary rod which penetrates through and is rotatably arranged at the center of the ramming hammer, one end of the rotary rod penetrating out of the top of the ramming hammer is provided with a connecting piece, the bottom end of the rotary rod is fixedly provided with a rotary disc, a connecting rod is rotatably arranged between the rotary disc and each inclined support block, and a groove for the connecting rod to move is formed in the ramming hammer.

Preferably, the first driving assembly comprises a plurality of lifting rods fixedly arranged at the top end of the annular rammer, and rolling wheels are rotatably connected to the side surfaces of the lifting rods;

The first driving assembly further comprises a fixed outer ring fixed in the tamping support, the top of the fixed outer ring is provided with a rotatable concave-convex ring, the concave-convex ring is provided with convex surfaces with the same quantity as the lifting rod, one side of each convex surface is semi-arc-shaped, the other side is vertical, and the rolling wheel is in rolling contact with the convex surface of the concave-convex ring.

Preferably, the bottom fixedly connected with first rotation gear of unsmooth ring lateral surface, the inside of ramming support is fixed with first fixed plate, the top rotation of first fixed plate is installed and is meshed with first rotation gear's second rotation gear, be used for driving second rotation gear pivoted motor is installed to the bottom of first fixed plate.

Preferably, the second driving assembly comprises a second fixing plate fixedly arranged in the tamping bracket, a rotating motor is fixedly arranged at the top of the second fixing plate, the end part of an output shaft of the rotating motor is fixedly connected with a rotating disc, the side surface of the rotating disc is rotationally connected with a second lifting plate, and the other end of the second lifting plate is rotationally connected with the tamping hammer.

Preferably, the bottom of the tamping bracket is detachably provided with a fixing ring.

Preferably, the bottom of the inclined plane supporting block is concave, and the concave inner side surface is an inclined plane.

Preferably, the height of the lifting rod and the annular rammer is higher than that of the concave surface in the concave-convex ring.

The asphalt pavement construction tamping method comprises the following steps:

S1, firstly cleaning sundries, soil and broken materials around the pit, then trimming the edge of the pit by using a tool to enable the edge of the pit to be in a round regular shape, wetting the bottom of the pit, filling materials such as asphalt concrete and the like into the pit, and compacting a base layer of the pit;

S2, after the compaction of the base layer is completed, the base layer is connected with a connecting plate through external conveying equipment, then the compaction support is conveyed to a position needing to be compacted, then the compaction support is separated from the connecting plate, the compaction hammer is controlled to descend to the surface of the base layer through a second driving assembly, then the inclined plane supporting block is expanded along the radius direction of the compaction hammer through a transmission assembly to extend out, and the surface layer material of the asphalt pavement is filled above the base layer to form a conical ring;

s3, driving a second rotary gear to rotate through a motor, wherein the second rotary gear drives a first rotary gear to rotate, and the first rotary gear drives the concave-convex ring to rotate;

S4, in the process of rotating the concave-convex ring, the concave-convex ring drives the rolling wheel to roll, when the rolling wheel rolls to the top of the convex surface of the concave-convex ring, the lifting rod is the highest point, the annular ramming hammer is the highest point, the rolling wheel can instantly fall into the concave surface through the vertical surface on one side of the convex surface in the rolling process, and the conical ring is rammed and extruded through the falling impact force and the gravity of the annular ramming hammer;

s5, when the rolling wheel falls to the bottom of the concave surface of the concave-convex ring, the rolling wheel rolls along with the semi-arc shape of one side of the convex surface in the concave-convex ring in the process of continuously rotating the concave-convex ring, and the rolling wheel slowly rises in the rolling process, and the annular rammer breaks away from the conical ring to prepare for next ramming and extrusion;

s6, after the conical ring is tamped and extruded, the transmission assembly controls the inclined plane supporting block to retract along the radius direction of the tamping hammer, and then the second driving assembly controls the tamping hammer to ascend;

s7, after the compaction hammer is lifted, filling the residual space of the pit to form a conical cylinder, and then controlling the compaction hammer to reciprocate up and down to compact and squeeze the conical cylinder by the second driving assembly;

and S8, after the tamping work is completed, the external transportation equipment removes the tamping support through the connecting plate.

Preferably, the initial height of the conical ring filled in the pit in the step S2 is higher than that of the original pavement.

Compared with the prior art, the invention has the following beneficial effects:

According to the invention, the transmission assembly is used for controlling the inclined support block to expand or retract along the radius direction of the tamping hammer, the conical cavity is formed by expanding the inclined support block and the inner wall of the pit, and the conical ring inside the conical cavity is tamped and extruded by the annular tamping hammer, so that the conical ring is better adhered to the inner wall of the pit, the connection between the repairing layer and the original pavement is enhanced, the layering of the repairing layer and the original pavement is avoided, and the secondary repairing cost is increased.

Drawings

FIG. 1 is a schematic view of an external perspective structure of the present invention;

FIG. 2 is a schematic view of the front view of the present invention;

FIG. 3 is a schematic view of the left side structure of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention;

FIG. 6 is a cross-sectional view taken along line C-C of FIG. 2 in accordance with the present invention;

FIG. 7 is a cross-sectional view taken along line D-D of FIG. 3 in accordance with the present invention;

FIG. 8 is a schematic view of the structure of the conical ring of the present invention after molding;

FIG. 9 is a schematic view of the present invention prior to compaction of the conical ring;

FIG. 10 is a schematic view of the present invention after the conical ring is tamped.

In the figure: 1. tamping the support; 2. a connecting plate; 3. fixing the outer ring; 4. a ramming hammer; 5. an inclined plane supporting block; 6. a connecting rod; 7. a rotating disc; 8. an annular rammer; 9. a lifting rod; 10. a rolling wheel; 11. a concave-convex ring; 12. a first rotary gear; 13. a second rotary gear; 14. a first fixing plate; 15. a second fixing plate; 16. a second lifting plate; 17. a rotating disc; 18. a rotating electric machine; 19. a fixing ring; 20. a conical ring; 21. an iron net; 22. a base layer; 23. a conical cylinder; 24. a rotating rod; 25. pit holes; 26. a mounting groove; 27. and a motor.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 10, the present invention provides a technical solution: the device comprises a tamping bracket 1, a connecting plate 2 for assisting the tamping bracket 1 to move, and a connecting plate for assisting the tamping bracket 1 to move;

The tamping hammer 4 is vertically and slidably arranged in the tamping bracket 1, a plurality of annular array mounting grooves 26 are formed in the bottom surface of the tamping hammer 4, and an inclined plane supporting block 5 is slidably arranged in each mounting groove 26;

the transmission assembly is used for expanding or retracting the inclined support blocks 5 along the radius direction of the rammer 4, when the inclined support blocks 5 retract into the mounting groove 26, the bottom surface of the rammer 4 and the inclined support blocks 5 form a ramming surface together, and the radius of the ramming surface is the same as that of the rammer 4;

a plurality of annular rammers 8 distributed on the outer wall of the rammer 4 in an annular shape, and a plurality of annular rammers 8 form a rammer ring;

the first driving assembly is used for driving the annular rammer 8 to vertically reciprocate;

and the second driving assembly is used for driving the rammer 4 to vertically reciprocate.

Asphalt pavement is a common road paving material, also called asphalt concrete, but has poor durability, and can be subjected to weather and pressure of different automobiles in the use process, so that the problems of cracks, pits 25, looseness and the like of the pavement are caused;

When repairing the pit 25, firstly cleaning up sundries, soil and broken pavement materials around the pit 25, then trimming the edges of the pit 25 by using a tool to enable the edges to be in a regular shape, wetting the bottom of the pit 25, filling asphalt concrete and other materials into the pit 25, and finally carrying out surface trimming and compaction and finally sealing.

When repairing and filling the hole 25, the asphalt concrete filled and paved is compacted uniformly and tightly mainly by the asphalt pavement construction tamping device, but different types of pavement problems need different repairing depths, when the repairing and filling is carried out until the repairing and tamping device is at the last layer, namely the surface layer, good adhesion between the repairing layer and the original pavement needs to be ensured, in the later use process, the repairing layer and the original road surface are prevented from layering due to external pressure and weather, so that secondary subsidence and pits 25 of the road surface are caused, and the road flatness and the travelling comfort are affected;

Connecting an external transportation device with the connecting plate 2, such as a forklift or a fork truck, and then transporting the tamping bracket 1 to a position to be tamped;

After the filling and compaction of the base layer 22 are completed, when the surface layer is filled, the compaction hammer 4 is controlled to descend to the filling layer through the first driving component, then the plurality of inclined plane supporting blocks 5 are controlled to expand along the radius direction of the compaction hammer 4 through the transmission component, so that a conical cavity is formed by the plurality of inclined plane supporting blocks 5 and filled pits 25, then an iron net 21 is placed on the surface of the inclined plane supporting blocks 5, and then filling materials are poured into the conical cavity to form a conical ring 20, as shown in fig. 7-8;

After the conical ring 20 is filled, the second driving assembly drives the annular ramming hammer 8 to press and tamp the conical ring 20, in the pressing and tamping process, the annular ramming hammer 8 can form downward extrusion force on the conical ring 20, the inclined support block 5 is supported at the bottom of the conical ring 20, the bottom is an inclined surface, at the moment, the conical ring 20 has a flowing trend in the horizontal direction during tamping, the inside of the conical ring 20 can be better adhered into a whole and better connected with the side surface of the original pavement, the layering of a repairing layer and the original pavement is avoided, the subsidence of the pavement is reduced, the flatness and the driving comfort of the pavement are increased, and the repairing cost is reduced;

After filling and tamping of the conical ring 20 are completed, the transmission assembly controls the inclined support block 5 to retract and reset along the radius direction of the tamping hammer 4, then the first driving assembly controls the tamping hammer 4 to ascend, then filling materials are poured into the residual space of the pit 25 to form a conical cylinder 23, and then the first driving assembly controls the tamping hammer 4 to reciprocate up and down to squeeze and tamp the conical cylinder 23;

It should be noted that, in the extrusion and tamping process, since the new filling layer is the tapered cylinder 23, when the downward extrusion force of the tamping hammer 4 is received, the inclined side surface of the tapered cylinder 23 will transmit the received force to the tapered ring 20, the tapered ring 20 will receive the upward extrusion force, so that the tapered cylinder 23 and the tapered ring 20 are tightly buckled, and meanwhile, the extrusion in the horizontal direction also makes the tapered ring 20 better adhere to the side wall of the pit 25, and the tapered cylinder 23 and the tapered ring 20 are both filled with new materials, so that an integral can be better formed between the two;

It is worth noting that, because the iron net 21 is placed on the surface of the inclined support block 5, the iron net 21 is tightly adhered to the filling material under the adhesion of the surface of the filling material, and the adhesion can be enhanced in the tamping process, so when the inclined support block 5 is retracted into the tamping hammer 4, the conical ring 20 cannot collapse, meanwhile, the following conical cylinder 23 and the conical ring 20 can be tightly adhered, the strength of the repaired pavement is improved, and because the iron net 21 is in a conical shape, the iron net 21 can also decompose the vertical pressure of the pavement in the actual use process after the pavement is repaired, so that the overall strength of the pavement is improved.

After the compaction is completed, the compaction hammer 4 is reset by the first driving assembly, and the annular compaction hammer 8 is reset by the second driving assembly.

Further, the transmission assembly comprises a rotary rod 24 which is installed at the center of the rammer 4 in a penetrating and rotating mode, a connecting piece is arranged at one end, penetrating out of the top of the rammer 4, of the rotary rod 24, a rotary disc 7 is fixed at the bottom end of the rotary rod 24, connecting rods 6 are installed between the rotary disc 7 and each inclined support block 5 in a rotating mode, and grooves for the connecting rods 6 to move are formed in the rammer 4.

The transmission assembly can see fig. 4, 5 and 7, after the rammer 4 enters the bottom of the filling layer, the rotary rod 24 drives the rotary plate 7 to rotate by rotating the rotary rod 24, and the rotary plate 7 drives the connecting rod 6 to rotate, so that the angle of the connecting rod 6 is changed;

When the connecting rod 6 rotates to be in a vertical state, the connecting rod 6 pushes the inclined support block 5 out along the radius of the rammer 4, and the auxiliary inclined support block 5 and the pit 25 form a conical cavity;

When the connecting rod 6 rotates to an inclined state, the connecting rod 6 can pull the inclined support block 5 back along the radius of the rammer 4, and the auxiliary rammer 4 can reciprocate up and down;

the conical ring 20 is formed by controlling the extension and retraction of the inclined support block 5 through the connecting rod 6, wherein the rotating rod 24 can be connected with an external driving structure through a connecting piece at the top end of the rotating rod, such as a motor or a manual lever, and the like, and the method can be specifically selected according to practical situations.

Further, the first driving assembly comprises a plurality of lifting rods 9 fixedly arranged at the top end of the annular rammer 8, and rolling wheels 10 are rotatably connected to the side surfaces of the lifting rods 9;

the first driving assembly further comprises a fixed outer ring 3 fixed in the tamping support 1, a rotatable concave-convex ring 11 is arranged at the top of the fixed outer ring 3, convex surfaces with the same number as the lifting rods 9 are arranged on the concave-convex ring 11, one side of each convex surface is semi-arc-shaped, the other side is vertical, and the rolling wheel 10 is in rolling contact with the convex surfaces of the concave-convex ring 11.

The first drive assembly can be seen in figures 4, 6 and 7, by externally driving the male and female rings 11 to rotate when it is desired to squeeze the conical ring 20; in the process of rotating the concave-convex ring 11, as one side of each convex surface of the concave-convex ring 11 is semi-arc, and the other side is vertical, the rolling wheel 10 moves up and down along with the vertical surface and the semi-arc of the concave-convex ring 11 when driven by the rotation of the concave-convex ring 11;

When the rolling wheel 10 rolls to the top of the convex surface of the concave-convex ring 11, the annular ramming hammer 8 is the highest point of the lifting rod 9, and when the rolling wheel 10 passes through the vertical surface in the continuous rolling process, the rolling wheel 10 instantaneously drops into the concave surface of the concave-convex ring 11, and the conical ring 20 is rammed and extruded by the dropping impact force and the gravity of the annular ramming hammer 8;

When the rolling wheel 10 falls to the bottom of the concave surface of the concave-convex ring 11, the lifting rod 9 is the lowest point, the annular ramming hammer 8 is also the lowest point, the annular ramming hammer 8 is just in contact with the conical ring 20, the ramming and extrusion of the conical ring 20 are realized, in the process that the concave-convex ring 11 continues to rotate, the rolling wheel 10 rolls along with the half arc shape of one side of the convex surface in the concave-convex ring 11 in the process that the concave-convex ring 11 continues to roll, the rolling wheel 10 slowly rises along with the half arc shape, and the annular ramming hammer 8 is also slowly separated from the conical ring 20 to prepare for the next ramming and extrusion;

in this way, the lifting rod 9 is controlled to switch back and forth between the highest point and the lowest point, so that the annular rammer 8 can reciprocate up and down to squeeze and tamp the conical ring 20;

the annular rammer 8 is provided with a plurality of groups, the plurality of groups of annular rammer 8 form a group of circular rings, and the plurality of groups of annular rammer 8 reciprocate up and down at the same time, and tamp and squeeze the conical circular ring 20 at the same time;

in another embodiment, the staggered up-and-down movement of the plurality of groups of annular ramming hammers 8 can be realized by changing the rotation positions of the concave-convex surfaces in the concave-convex rings 11, so that one group of annular ramming hammers 8 ascend, and two adjacent groups of annular ramming hammers 8 descend, so that the conical ring 20 is stressed by different directions, and is firmer and more integral;

Notably, the lifting rod 9 passes through the fixed outer ring 3 and is fixedly connected with the annular rammer 8, so that the lifting rod 9 cannot be separated from the concave-convex ring 11 when in up-and-down reciprocating motion, and potential safety hazards are avoided.

Further, a first rotary gear 12 is fixedly connected to the bottom of the outer side surface of the concave-convex ring 11, a first fixing plate 14 is fixed inside the ramming support 1, a second rotary gear 13 meshed with the first rotary gear 12 is rotatably mounted on the top of the first fixing plate 14, and a motor 27 for driving the second rotary gear 13 to rotate is mounted on the bottom of the first fixing plate 14.

Referring to fig. 4, 6 and 7, when the concave-convex ring 11 needs to be rotated, the motor 27 drives the second rotary gear 13 to rotate, the second rotary gear 13 drives the first rotary gear 12 to rotate, and the first rotary gear 12 drives the concave-convex ring 11 to rotate, so as to complete the compaction process in the subsequent step.

Further, the second driving assembly comprises a second fixing plate 15 fixedly installed inside the tamping bracket 1, a rotating motor 18 is fixedly installed at the top of the second fixing plate 15, an output shaft end of the rotating motor 18 is fixedly connected with a rotating disc 17, a second lifting plate 16 is rotatably connected to the side face of the rotating disc 17, and the other end of the second lifting plate 16 is rotatably connected with the tamping hammer 4.

The second driving assembly can see fig. 4 and 6, the rotating motor 18 drives the rotating disc 17 to rotate, the rotating disc 17 drives the second lifting plate 16 to move up and down, and the second lifting plate 16 drives the rammer 4 to reciprocate up and down, so that the rammer 4 extrudes and compacts the conical cylinder 23.

Further, the bottom of the tamper support 1 is detachably mounted with a securing ring 19.

Referring to fig. 9, when the retaining ring 19 is installed at the bottom of the tamper support 1, it is possible to surround the repaired pothole 25 to ensure that the filled asphalt material will always collect in the pothole 25 during the compaction process.

Further, the bottom of the inclined support block 5 is concave, and the concave inner side is inclined.

Through the inclined plane setting of the concave medial surface of inclined plane supporting shoe 5, avoid when inclined plane supporting shoe 5 is retracted, the dust in hole 25 receives the retractive force and gets into inside mounting groove 26, influences follow-up work.

Further, the height of the lifting rod 9 and the annular rammer 8 is higher than that of the concave surface in the concave-convex ring 11.

Through the setting that lifter 9 and annular rammer 8 highly are higher than concave surface in unsmooth ring 11, avoid rolling wheel 10 when vertical dropping, with the direct impact of concave surface in unsmooth ring 11, reduce the harm to rolling wheel 10.

The asphalt pavement construction tamping method comprises the following steps:

S1, firstly cleaning sundries, soil and broken materials around the pit 25, then trimming the edges of the pit 25 by using a tool to enable the edges to be in a round regular shape, wetting the bottom of the pit 25, filling materials such as asphalt concrete and the like into the pit 25, and compacting the base layer 22 of the pit 25;

S2, after the compaction of the base layer 22 is completed, the base layer 22 is connected with a connecting plate 2 through external conveying equipment, then the compaction support 1 is conveyed to a position needing compaction, then the compaction support is separated from the connecting plate 2, the compaction hammer 4 is controlled to descend to the surface of the base layer 22 through a second driving assembly, then the inclined support block 5 is expanded along the radial direction of the compaction hammer 4 through a transmission assembly to extend out, and the surface layer material of the asphalt pavement is filled above the base layer 22 to form a conical ring 20;

S3, driving the second rotary gear 13 to rotate through the motor 27, wherein the second rotary gear 13 drives the first rotary gear 12 to rotate, and the first rotary gear 12 drives the concave-convex ring 11 to rotate;

S4, in the process of rotating the concave-convex ring 11, the concave-convex ring 11 drives the rolling wheel 10 to roll, when the rolling wheel 10 rolls to the top of the convex surface of the concave-convex ring 11, the lifting rod 9 is the highest point, the annular rammer 8 is also the highest point, in the process of rolling, the rolling wheel 10 can instantly fall into the concave surface through the vertical surface on one side of the convex surface, and the conical ring 20 is rammed and extruded through the falling impact force and the gravity of the annular rammer 8;

S5, after the rolling wheel 10 falls to the bottom of the concave surface of the concave-convex ring 11, in the process of continuously rotating the concave-convex ring 11, the rolling wheel 10 rolls along with the semi-arc shape of one side of the convex surface in the concave-convex ring 11, in the rolling process, the rolling wheel 10 slowly rises, and the annular rammer 8 breaks away from the conical ring 20 to prepare for next ramming and extrusion;

s6, after the conical ring 20 is tamped and extruded, the transmission assembly controls the inclined support block 5 to retract along the radius direction of the tamping hammer 4, and then the second driving assembly controls the tamping hammer 4 to ascend;

S7, after the compaction hammer 4 is lifted, filling the residual space of the pit 25 to form a conical cylinder 23, and then controlling the compaction hammer 4 to reciprocate up and down to compact and squeeze the conical cylinder 23 by the second driving assembly;

And S8, after the tamping work is completed, the external transportation equipment removes the tamping bracket 1 through the connecting plate 2.

Further, the initial height of the conical ring 20 filled in the pit 25 in the step S2 is higher than that of the original road surface;

Because the initial height of the conical ring 20 is higher than that of the original pavement, the situation that the pit 25 cannot be completely kept at the same level with the original pavement due to the extrusion of asphalt in the tamping process is avoided.

The standard components used in the present embodiment may be purchased directly from the market, and the nonstandard structural components according to the descriptions of the specification and the drawings may also be obtained directly by unambiguous processing according to the common general knowledge in the prior art, and meanwhile, the connection manner of each component adopts the conventional means mature in the prior art, and the machinery, the components and the equipment all adopt the conventional types in the prior art, so that the specific description will not be made here.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a bituminous paving construction ramming device, includes ramming support (1) and supplementary ramming support (1) and carries out connecting plate (2) that remove, its characterized in that: also comprises;

the tamping hammer (4) is vertically and slidably arranged in the tamping bracket (1), a plurality of annular array mounting grooves (26) are formed in the bottom surface of the tamping hammer (4), and inclined plane supporting blocks (5) are slidably arranged in each mounting groove (26);

The transmission assembly is used for expanding or retracting the inclined support blocks (5) along the radius direction of the rammer (4), when the inclined support blocks (5) retract into the mounting groove (26), the bottom surface of the rammer (4) and the inclined support blocks (5) form a ramming surface together, and the radius of the ramming surface is the same as that of the rammer (4);

a plurality of annular rammers (8) which are annularly distributed on the outer wall of the rammer (4), and a plurality of annular rammers (8) form a ramming ring;

the first driving assembly is used for driving the annular rammer (8) to vertically reciprocate;

and the second driving assembly is used for driving the rammer (4) to vertically reciprocate.

2. The asphalt pavement construction ramming apparatus according to claim 1, wherein: the transmission assembly comprises a rotary rod (24) which penetrates through and is rotatably mounted at the center of the ramming hammer (4), one end of the rotary rod (24) penetrating out of the top of the ramming hammer (4) is provided with a connecting piece, the bottom end of the rotary rod (24) is fixedly provided with a rotary disc (7), a connecting rod (6) is rotatably mounted between the rotary disc (7) and each inclined support block (5), and a groove for the connecting rod (6) to move is formed in the ramming hammer (4).

3. The asphalt pavement construction ramming apparatus according to claim 1, wherein: the first driving assembly comprises a plurality of lifting rods (9) fixedly arranged at the top end of the annular rammer (8), and rolling wheels (10) are rotatably connected to the side surfaces of the lifting rods (9);

The first driving assembly further comprises a fixed outer ring (3) fixed in the tamping support (1), a rotatable concave-convex ring (11) is arranged at the top of the fixed outer ring (3), convex surfaces with the same number as the lifting rods (9) are arranged on the concave-convex ring (11), one side of each convex surface is semi-arc-shaped, the other side of each convex surface is vertical, and the rolling wheels (10) are in rolling contact with the convex surfaces of the concave-convex ring (11).

4. The asphalt pavement construction ramming apparatus according to claim 3, wherein: the bottom fixedly connected with first rotation gear (12) of unsmooth ring (11) lateral surface, the inside of ramming support (1) is fixed with first fixed plate (14), second rotation gear (13) with first rotation gear (12) engaged with are installed in the rotation of the top of first fixed plate (14), motor (27) that are used for driving second rotation gear (13) pivoted are installed to the bottom of first fixed plate (14).

5. The asphalt pavement construction ramming apparatus according to claim 1, wherein: the second driving assembly comprises a second fixing plate (15) fixedly arranged in the tamping support (1), a rotating motor (18) is fixedly arranged at the top of the second fixing plate (15), a rotating disc (17) is fixedly connected to the end part of an output shaft of the rotating motor (18), a second lifting plate (16) is rotatably connected to the side face of the rotating disc (17), and the other end of the second lifting plate (16) is rotatably connected with the tamping hammer (4).

6. The asphalt pavement construction ramming apparatus according to claim 1, wherein: the bottom of the tamping bracket (1) is detachably provided with a fixing ring (19).

7. The asphalt pavement construction ramming apparatus according to any one of claims 1 to 6, wherein: the bottom of the inclined plane supporting block (5) is concave, and the inner side surface of the concave is an inclined plane.

8. The asphalt pavement construction ramming apparatus according to claim 3, wherein: the height of the lifting rod (9) and the annular rammer (8) is higher than that of the concave surface of the concave-convex ring (11).

9. An asphalt pavement construction tamping method, characterized in that the asphalt pavement construction tamping device of claim 4 is adopted for tamping, and the method comprises the following steps:

S1, firstly cleaning sundries, soil and broken materials around a pit (25), then trimming the edge of the pit (25) by using a tool to enable the edge to be in a round regular shape, wetting the bottom of the pit (25), filling asphalt concrete materials into the pit (25), and compacting a base layer (22) of the pit (25);

S2, after the compaction of the base layer (22) is completed, the base layer is connected with the connecting plate (2) through external conveying equipment, then the compaction support (1) is conveyed to a position needing compaction, then the base layer is separated from the connecting plate (2), the compaction hammer (4) is controlled to descend to the surface of the base layer (22) through a second driving assembly, then the inclined plane supporting block (5) is expanded along the radial direction of the compaction hammer (4) through a transmission assembly to extend out, and the surface layer material of the asphalt pavement is filled above the base layer (22) to form a conical ring (20);

S3, driving a second rotary gear (13) to rotate through a motor (27), wherein the second rotary gear (13) drives a first rotary gear (12) to rotate, and the first rotary gear (12) drives the concave-convex ring (11) to rotate;

S4, in the process of rotating the concave-convex ring (11), the concave-convex ring (11) can drive the rolling wheel (10) to roll, when the rolling wheel (10) rolls to the top of the convex surface of the concave-convex ring (11), the lifting rod (9) is the highest point, the annular ramming hammer (8) is also the highest point, in the process of rolling, the rolling wheel (10) can instantly fall into the concave surface through the vertical surface on one side of the convex surface, and the conical ring (20) is rammed and extruded through the falling impact force and the gravity of the annular ramming hammer (8);

S5, after the rolling wheel (10) falls to the bottom of the concave surface of the concave-convex ring (11), the rolling wheel (10) rolls along with the semi-arc shape of one side of the convex surface in the concave-convex ring (11) in the process of continuously rotating the concave-convex ring (11), and in the rolling process, the rolling wheel (10) slowly rises, and the annular rammer (8) is separated from the conical ring (20) to prepare for next ramming and extrusion;

S6, after the conical ring (20) is tamped and extruded, the transmission assembly controls the inclined support block (5) to retract along the radius direction of the tamping hammer (4), and then the second driving assembly controls the tamping hammer (4) to ascend;

S7, after the compaction hammer (4) is lifted, filling the residual space of the pit (25) to form a conical cylinder (23), and then controlling the compaction hammer (4) to reciprocate up and down to compact and squeeze the conical cylinder (23) by the second driving assembly;

and S8, after the tamping work is finished, the external transportation equipment moves the tamping support (1) away through the connecting plate (2).

10. The asphalt pavement construction ramming method according to claim 9, wherein: the initial height of the conical ring (20) filled in the pit (25) in the S2 is higher than that of the original pavement.