CN220789336U

CN220789336U - Asphalt paving flattening device

Info

Publication number: CN220789336U
Application number: CN202322390716.4U
Authority: CN
Inventors: 耿晓红
Original assignee: Liaocheng Municipal Engineering Management Service Center
Current assignee: Liaocheng Municipal Engineering Management Service Center
Priority date: 2023-09-04
Filing date: 2023-09-04
Publication date: 2024-04-16
Anticipated expiration: 2033-09-04

Abstract

The utility model discloses an asphalt paving and flattening device, which belongs to the technical field of asphalt paving and flattening, and comprises a paving hopper and a flattening assembly, wherein the flattening assembly is connected to the paving hopper through a traction assembly; the flattening component comprises a cylindrical press roller, end covers fixed at two ends of the press roller, and a shock-absorbing mechanism arranged inside the press roller and positioned between the two end covers; the impact mechanism comprises a plurality of annular plates which are arranged at equal intervals, and a lifting plate and impact blocks which are arranged between every two adjacent annular plates, wherein when the press roll rolls, the lifting plate can lift the impact blocks to a high position and then fall freely. According to the utility model, the rolling of the press roller can be converted into free falling motion of the punching block by utilizing the cooperation of the lifting plate and the punching block, so that asphalt paved by the paving hopper is tapped by utilizing vibration generated when the punching block impacts the inner bottom surface of the press roller, vibration with the number equal to that of the punching block is generated when the press roller rolls for one circle, and the tapping and flattening effects are good.

Description

Asphalt paving flattening device

Technical Field

The utility model belongs to the technical field of asphalt paving and flattening, and particularly relates to an asphalt paving and flattening device.

Background

The Chinese patent with the publication number of CN218404960U discloses a small-sized paving and flattening device, which comprises a mounting frame, a paving feeding mechanism, a flattening mechanism and an auxiliary supporting wheel mechanism, wherein the mounting frame comprises a U-shaped mounting frame body and a connecting frame arranged on the U-shaped mounting frame body, and the flattening mechanism and the auxiliary supporting wheel mechanism are positioned on two sides of the paving feeding mechanism; the spreading and feeding mechanism comprises a feeding hopper, a spiral spreading roller arranged at the outlet of the bottom of the feeding hopper and distributed along the length direction of the feeding hopper, and a power motor for driving the spiral spreading roller to rotate; the flattening mechanism comprises a U-shaped movable frame arranged on one side of the spiral spreading roller, a flattening roller arranged in the U-shaped movable frame and a pressing adjusting component arranged between the U-shaped mounting frame body and the U-shaped movable frame and used for pressing the flattening roller to be close to a road surface. The utility model has simple structure, reasonable design and low cost, meets the requirements of asphalt pavement repair, paving and flattening, and reduces the labor intensity.

The flattening mechanism in the technical scheme provided by the patent mainly extrudes asphalt through the flattening roller 10, so that paved asphalt can be flattened, but in the actual use process, the extrusion force close to the flattening roller 10 cannot achieve a good flattening function, and the condition that gaps exist in the asphalt easily occurs, so that the compactness of the whole asphalt is poor.

Disclosure of Invention

The utility model aims at: in order to solve the problems pointed out in the background art, an asphalt paving flattening device is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the asphalt paving and flattening device comprises a paving hopper and a flattening assembly, wherein the flattening assembly is connected to the paving hopper through a traction assembly;

the flattening component comprises a cylindrical press roller, end covers fixed at two ends of the press roller, and a shock-absorbing mechanism arranged inside the press roller and positioned between the two end covers;

the impact mechanism comprises a plurality of annular plates which are arranged at equal intervals, and a lifting plate and an impact block which are arranged between every two adjacent annular plates, wherein the annular plates and the compression roller are coaxially arranged, a plurality of lifting plates are staggered with each other, and when the compression roller rolls, the lifting plate can lift the impact block to a high position and then fall down freely.

Preferably, positioning pins are fixed on the two annular plates at two ends of the shock absorbing mechanism, and penetrate through the end covers.

Preferably, the end cap is detachably mounted to the press roll by fasteners.

Preferably, the traction assembly comprises a traction rope, and two ends of the traction rope are respectively connected to the hopper and the flattening assembly.

Preferably, the traction assembly further comprises a first fixing block and a second fixing block, the first fixing block is fixed on the spreading hopper, the second fixing block is coaxially arranged with the press roller and is rotatably connected to the end cover, and two ends of the traction rope are respectively connected to the first fixing block and the second fixing block.

Preferably, through holes are formed in the first fixing block and the second fixing block, two ends of the traction rope respectively penetrate through the two through holes to form a knot, and the diameter of the knot is larger than the aperture of the through hole.

Preferably, a cloth cylinder is sleeved and fixed on the outer side of the press roller.

Preferably, the second fixing block is in threaded connection with a pressing cover, and the edge positions of the two ends of the cloth cylinder are pressed on the end face of the pressing roller through the pressing cover.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. according to the utility model, the rolling of the compression roller can be converted into free falling motion of the punching block by utilizing the cooperation of the lifting plate and the punching block, so that asphalt paved by the paving hopper is compacted by utilizing vibration generated when the punching block impacts the inner bottom surface of the compression roller, and meanwhile, as the lifting plate and the punching block are arranged in a plurality of numbers, vibration which is equal to the number of the punching blocks can be generated when the compression roller rolls for one circle, the compactness of an asphalt pavement is improved, and the compacting and flattening effects are good.

2. According to the utility model, the connection between the spreading hopper and the flattening assembly is realized through the traction rope, so that the overall production and use cost can be reduced, and the vibration generated by the flattening assembly each time can be ensured to act on the asphalt pavement.

Drawings

FIG. 1 is a schematic diagram of the whole structure of an asphalt paving and flattening device according to the present utility model;

FIG. 2 is a schematic diagram of a part of an asphalt paving and flattening device according to the present utility model;

FIG. 3 is an enlarged schematic view of the asphalt paving and flattening device of FIG. 2;

fig. 4 is a schematic structural view of a pressing roller of an asphalt paving and flattening device according to the present utility model;

FIG. 5 is an enlarged schematic view of the structure of the asphalt paving and flattening device of FIG. 4;

FIG. 6 is a schematic cross-sectional view of a pressing roller of an asphalt paving flattening device according to the present utility model;

fig. 7 is a schematic structural view of an annular plate and a lifting plate of an asphalt paving and flattening device.

Legend description: 1. a hopper is paved; 2. a flattening assembly; 21. a press roller; 22. an end cap; 23. a shock-absorbing mechanism; 231. an annular plate; 232. a lifting plate; 233. punching blocks; 234. a positioning pin; 24. a fastener; 25. a cloth cylinder; 26. a pressing cover; 3. a traction assembly; 31. a traction rope; 311. a nodule; 32. a first fixed block; 33. a second fixed block; 331. and a through hole.

Detailed Description

The utility model will now be described with reference to specific examples.

As shown in fig. 1 to 7, the asphalt paving and flattening device of the embodiment comprises a paving hopper 1 and a flattening component 2, wherein the flattening component 2 is connected to the paving hopper 1 through a traction component 3, during actual use, the paving hopper 1 is pulled by a tractor and the like to move, and asphalt is uniformly paved on a road surface by the moving paving hopper 1, and in the process, the flattening component 2 can flatten the asphalt on the road surface, so that the prior art is omitted.

Unlike the prior art, the flattening assembly 2 in this embodiment can convert rolling motion into vibration to tap asphalt, prevent the internal residual void of asphalt, and improve the compactness of asphalt pavement.

Specifically, as shown in fig. 1, 4, 6 and 7, the platen assembly 2 includes a cylindrical press roller 21, end caps 22 fixed to both ends of the press roller 21, and a shock mechanism 23 provided inside the press roller 21 and located between the two end caps 22; as shown in fig. 6 and 7, the impact mechanism 23 includes a plurality of annular plates 231 arranged at equal intervals, and a lifting plate 232 and a punch block 233 disposed between each adjacent two of the annular plates 231, the annular plates 231 are disposed coaxially with the press roller 21, the plurality of lifting plates 232 are offset from each other, and when the press roller 21 rolls, the lifting plates 232 can lift the punch block 233 to a high position and then fall freely; in the present embodiment, the number of the annular plates 231 is nine, so that the lift plates 232 and the punches 233 are provided with eight, and the plurality of lift plates 232 are offset from each other, which means: eight lifting plates 232 are uniformly arranged along the circumferential direction of the pressing roller 21 as seen from the left or right end of the pressing roller 21.

In actual use, since the traction assembly 3 connects the flattening assembly 2 to the hopper 1, the flattening assembly 2 (i.e. the press roller 21) rolls on the asphalt being paved along with the movement of the hopper 1, at this time, since the annular plate 231 and the lifting plate 232 are fixedly connected with the press roller 21, the annular plate 231 and the lifting plate 232 roll along with the press roller 21, and since eight lifting plates 232 and eight punching blocks 233 are arranged, one of the eight punching blocks 233 is lifted to a high position by the lifting plate 232 during one rotation of the press roller 21, and then rolls from the lifting plate 232 to make free falling body movement until impacting the inner bottom surface of the press roller 21, thereby generating vibration, so that the press roller 21 shakes the asphalt pavement in the rolling process; the process of lifting the punch 233 by the lifting plate 232 is: in this embodiment, the punch 233 is cylindrical, under the action of gravity, the punch 233 is always located at the inner bottom of the press roller 21, when the lifting plate 232 rotates to contact with the punch 233, the punch 233 will rotate along with the lifting plate 232 due to shielding of the lifting plate 232, and when the lifting plate 232 rotates to a portion above the axis of the press roller 21, the lifting plate 232 will start to incline downward, so that the punch 233 rolls off the lifting plate 232 and finally collides with the inner bottom of the press roller 21 to generate vibration.

In the above scheme, the rolling of the press roller 21 can be converted into the free falling motion of the punch 233 by utilizing the cooperation of the lifting plate 232 and the punch 233, so that the asphalt paved by the paving hopper 1 is compacted by utilizing the vibration generated when the punch 233 impacts the inner bottom surface of the press roller 21, and meanwhile, the vibration equal to the number of the punch 233 is generated when the press roller 21 rolls for each circle because the lifting plate 232 and the punch 233 are arranged in a plurality of numbers, so that the compactness of an asphalt pavement is improved, and the compaction and flattening effects are good.

As shown in fig. 5 and 7, the positioning pins 234 are fixed to the two annular plates 231 at both ends of the shock absorbing mechanism 23, and the positioning pins 234 penetrate through the end caps 22, so that the two end caps 22 can be used to fix the positions of the annular plates 231 and the lifting plates 232, and the annular plates 231 and the lifting plates 232 are prevented from rotating relative to the press roller 21, in other words, the purpose that the annular plates 231 and the lifting plates 232 rotate along with the press roller 21 is achieved, and meanwhile, the annular plates 231 and the lifting plates 232 can be conveniently mounted and dismounted by the design, for example, the annular plates 231 and the lifting plates 232 can be directly inserted into or pulled out of the press roller 21.

As shown in fig. 5, the end cover 22 is detachably mounted on the press roller 21 by a fastener 24, in this embodiment, the fastener 24 is a hexagon socket screw, and the head of the hexagon socket screw is embedded inside the outer peripheral surface of the press roller 21.

As shown in fig. 1 to 3, the traction assembly 3 includes a traction rope 31, two ends of the traction rope 31 are respectively connected to the hopper 1 and the flattening assembly 2, further, the traction assembly 3 further includes a first fixing block 32 and a second fixing block 33, the first fixing block 32 and the second fixing block 33 are both cylindrical, the first fixing block 32 is fixed on the hopper 1, the second fixing block 33 is coaxially arranged with the press roller 21 and is rotatably connected to the end cover 22 through a bearing and other structures, and two ends of the traction rope 31 are respectively connected to the first fixing block 32 and the second fixing block 33.

As shown in fig. 3, through holes 331 are formed in the first fixing block 32 and the second fixing block 33, and the two ends of the traction rope 31 respectively pass through the two through holes 331 to form a knot 311, wherein the diameter of the knot 311 is larger than the aperture of the through hole 331.

In the above scheme, the connection between the paving hopper 1 and the flattening component 2 is realized through the traction rope 31, so that the overall production and use cost can be reduced, and the vibration generated by the flattening component 2 every time can be ensured to be applied to the asphalt pavement.

As shown in fig. 3, a cloth drum 25 is sleeved and fixed on the outer side of the press roller 21, a pressing cover 26 is screwed on the second fixing block 33, edge positions of two ends of the cloth drum 25 are pressed on the end face of the press roller 21 through the pressing cover 26, in practical construction, the cloth can be wound on the outer circumferential face of the press roller 21, and the joint is adhered and fixed by glue to form the cloth drum 25, or the press roller 21 can be sleeved with the prefabricated cloth drum 25, then the edge positions of two ends of the cloth drum 25 are pressed and fixed on the end face of the press roller 21 through the pressing cover 26, and the purpose of the cloth drum 25 is to protect the fastener 24 on one hand and also to have the effect of increasing friction force on the outer circumferential face of the press roller 21 on the other hand, so that the press roller 21 can roll smoothly.

Claims

1. The asphalt paving and flattening device comprises a paving hopper (1) and a flattening assembly (2), and is characterized in that the flattening assembly (2) is connected to the paving hopper (1) through a traction assembly (3);

the flattening assembly (2) comprises a cylindrical press roller (21), end covers (22) fixed at two ends of the press roller (21) and a shock-absorbing mechanism (23) arranged inside the press roller (21) and positioned between the two end covers (22);

the impact mechanism (23) comprises a plurality of annular plates (231) which are equidistantly arranged, and lifting plates (232) and impact blocks (233) which are arranged between every two adjacent annular plates (231), wherein the annular plates (231) and the press rollers (21) are coaxially arranged, the lifting plates (232) are staggered, and when the press rollers (21) roll, the lifting plates (232) can lift the impact blocks (233) to a high position and then fall freely.

2. The asphalt paving and flattening device according to claim 1, wherein positioning pins (234) are fixed to two annular plates (231) at both ends of the impact mechanism (23), and the positioning pins (234) penetrate through the end cover (22).

3. An asphalt paving flattening apparatus according to claim 1, wherein the end cap (22) is removably mounted to the pressure roller (21) by fasteners (24).

4. An asphalt paving and flattening apparatus as in claim 1, wherein the traction assembly (3) includes a traction rope (31), and two ends of the traction rope (31) are connected to the bucket (1) and the flattening assembly (2), respectively.

5. An asphalt paving and flattening apparatus as in claim 4, wherein the traction assembly (3) further comprises a first fixed block (32) and a second fixed block (33), the first fixed block (32) is fixed on the paving hopper (1), the second fixed block (33) is coaxially disposed with the press roller (21) and rotatably connected to the end cover (22), and two ends of the traction rope (31) are connected to the first fixed block (32) and the second fixed block (33), respectively.

6. The asphalt paving and flattening device according to claim 5, wherein the first fixing block (32) and the second fixing block (33) are respectively provided with a through hole (331), two ends of the traction rope (31) respectively penetrate through the two through holes (331) to form a knot (311), and the diameter of the knot (311) is larger than the aperture of the through holes (331).

7. An asphalt paving flattening apparatus in accordance with claim 5, wherein a cloth cylinder (25) is fixedly sleeved on the outer side of the press roll (21).

8. The asphalt paving and flattening device according to claim 7, wherein the second fixing block (33) is in threaded connection with a pressing cover (26), and edge positions of two ends of the cloth cylinder (25) are pressed on the end face of the pressing roller (21) through the pressing cover (26).