Asphalt paver
By setting two parallel-connected laying silos and spiral blades in opposite directions in the asphalt paver, the asphalt thickness failure and agglomeration caused by insufficient feeding of the hopper is solved, and uniform laying and reducing the pressure of the pushing plate are achieved. effect.
Patent Information
- Application Number
- CN202421065408.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-16
AI Technical Summary
When the hopper is insufficient, the asphalt thickness of the pavement away from the feed end does not meet the standard, and too much asphalt cannot be returned, causing extrusion and agglomeration, affecting the laying effect and reducing the service life of the device.
Design an asphalt paver, by setting up two parallel and connected laying silos, installing two spiral blades with opposite feeding directions in the laying silos, thereby ensuring sufficient asphalt circulates in the laying silos and ensuring laying. While the material effect is used, the pressure on the push plate is reduced.
It is achieved that while ensuring the laying effect, the pressure of the pushing plate is reduced, asphalt agglomeration is avoided, the uniformity and efficiency of laying are improved, and the service life of the device is extended.
Smart Images
Figure CN222455750U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of highway paving, in particular to an asphalt paver. Background Art
[0002] During the road construction process, asphalt is usually spread on the road surface by a paver and then rolled. The current paving device continuously and evenly transports the asphalt mixture in the hopper backward to the roadbed in the front channel of the spiral paver; the spiral paver then transports the mixture horizontally to the left and right and spreads it on the roadbed.
[0003] However, there are two types of spiral conveyor blades for this type of spiral paver. One is to feed in the middle and spread it horizontally to both sides, while the other is to feed at one end and then spread it to the other side through the spiral conveyor blades. Both of these structures have a problem: if the hopper feeds too little, the asphalt thickness of the road surface far from the feed end will not meet the standard; in order to ensure the paving thickness and uniformity, the feed amount of the hopper is increased, which causes too much asphalt to be diverted away from the feed end for a long time and cannot return, causing part of the asphalt to be squeezed on both sides, causing asphalt to clump and agglomerate, thus affecting the paving effect, and increasing the pressure on the push plate, reducing the service life of the device. Utility Model Content
[0004] The purpose of the utility model is to provide an asphalt paver, which ensures that a sufficient amount of asphalt circulates in the paving bin by setting two parallel and connected paving bins and installing two spiral blades with opposite feeding directions in the paving bins, thereby reducing the pressure of the push plate while ensuring the paving effect.
[0005] In order to achieve the above-mentioned purpose, the utility model provides an asphalt paver, including a paving trough, the bottom of the paving trough is open, baffles are arranged on both sides, a push plate is fixed between the baffles on both sides, and the distance between the push plate and the ground determines the thickness of the paved asphalt; the interior of the paving trough is divided into two side-by-side 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 head and tail ends of the two paving bins are connected; a spiral blade is rotatably installed in each paving bin, and the bottom of the spiral blade does not protrude from the bottom of the push plate; the feeding directions of the two spiral blades are opposite; and a feed port is arranged on the paving bin away from the push plate.
[0006] After adopting the above structure, the asphalt is evenly spread by inputting the asphalt from the feed port into one of the paving bins, and the excess asphalt enters the other paving bin when it is transported to the end of the spiral spreader, thereby a reciprocating cycle is formed to ensure that there is always a sufficient amount of asphalt circulating in the paving trough, and to ensure that the paving thickness and effect of the asphalt at all positions are the same; at the same time, the partition is parallel to the push plate and its bottom does not protrude from the bottom of the push plate, so the pushing pressure of the push plate can be reduced by the partition.
[0007] In order to reduce the investment in the driving device, the two spiral blades are connected to the same driving device through a transmission structure.
[0008] For safety protection, a top cover plate is fixed on the top of the paving trough.
[0009] In order to maximize the extension of the conveying route and ensure the circulation effect, the feed inlet is set at the feed end of its corresponding spiral blade.
[0010] In order to reduce the pushing pressure of the push plate and achieve the effect of guiding the material to both sides, the bottom of the push plate is an arc-shaped structure extending in the direction of the spiral blade.
[0011] In order to improve the strength of the push plate, a number of reinforcing ribs are provided on the push plate outside the material paving bin, and the two ends of the reinforcing ribs are fixed on both sides of the material paving trough.
[0012] In order to reduce the pushing pressure of the partition and achieve the effect of guiding the material to both sides, the bottom of the partition is an arc-shaped structure extending away from the pushing plate.
[0013] In order to improve the strength of the partition, a plurality of reinforcing ribs are provided on one side of the partition located in the direction of the pushing plate, and the two ends of the reinforcing ribs are fixed on both sides of the paving trough.
[0014] In order to effectively protect the driving device and the transmission structure, a protective cover is provided on the outer side cover of the driving device and the transmission structure.
[0015] In order to reduce the width of the device, mounting holes are provided on the paving trough for mounting the device on the lifting device and the moving device.
[0016] After adopting the above technical solution, the beneficial effects of the utility model are:
[0017] The utility model discloses an asphalt paver which solves the technical problem in the prior art that the asphalt paver spreads the road unevenly, resulting in a poor effect. The utility model provides two parallel and connected paving bins, and installs two spiral blades with opposite feeding directions in the paving bins, thereby ensuring that a sufficient amount of asphalt circulates in the paving bins, thereby reducing the pressure of the push plate while ensuring the paving effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of an asphalt paver of the utility model;
[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of the push plate side;
[0020] Figure 3 yes Figure 1Schematic diagram of the internal structure;
[0021] Figure 4 It is a schematic diagram of the working process of the device;
[0022] Figure 5 yes Figure 4 sectional view of .
[0023] In the figure, 1, baffle, 2, push plate, 3, partition, 31, connecting port, 4, spiral blade, 5, feed port, 6, top sealing plate, 61, mounting hole, 7, reinforcing rib. DETAILED DESCRIPTION
[0024] The utility model is further described below in conjunction with the accompanying drawings.
[0025] The orientations mentioned in this specification are based on the orientations of the asphalt paver of the utility model during normal operation, and do not limit the orientations during storage and transportation. They only represent relative positional relationships, not absolute positional relationships.
[0026] An asphalt spreader is installed at the front end of a paver. The height of the device is adjusted by a lifting device to control the distance from the ground and the thickness of the paved asphalt; the movement of the device is controlled by a moving device to achieve continuous paving.
[0027] like Figure 1 and Figure 2 As shown together, an asphalt paver includes a paving trough, the bottom of the paving trough is open, baffles 1 are arranged on both sides, a push plate 2 is fixed between the baffles 1 on both sides, and the distance between the push plate 2 and the ground determines the thickness of the paved asphalt; the baffles 1 on both sides and the push plate 2 form the paving trough.
[0028] like Figure 3 and Figure 4 As shown together, the interior of the paving trough is divided into two side-by-side paving bins by a partition 3, and the partition 3 is parallel to the push plate 2 and its bottom does not protrude from the bottom of the push plate 2. That is, the bottom of the partition 3 can be higher than the bottom of the push plate 2 or flush with the bottom of the push plate 2, and the pushing pressure of the push plate 2 can be reduced by the partition 3. In this embodiment, the bottom of the partition 3 is flush with the bottom of the push plate 2. A connecting port 31 is provided at the bottom of both ends of the partition 3, and the connecting port 31 connects the head and tail ends of the two paving bins; a spiral blade 4 is rotatably installed in each paving bin, and the bottom of the spiral blade 4 does not protrude from the bottom of the push plate 2, so as not to affect the paving thickness of the asphalt. The feeding directions of the two spiral blades 4 are opposite; a feed port 5 is provided on the paving bin away from the push plate 2. In order to maximize the extension of the conveying route and ensure the circulation effect, the feed port 5 is set at the feed end of its corresponding spiral blade 4. Of course, in order to avoid the feed impact between the connecting port 31 at the position of the feed port 5 and the feed port 5, it can be staggered.
[0029] like Figure 4 As shown, the asphalt mixture in the hopper is continuously and evenly transported backward to the roadbed at the feed port 5 in the front channel of the asphalt paver. The asphalt paver moves in the direction of the solid arrow driven by the paver. Driven by the spiral blade 4, the asphalt circulates back and forth in the paving trough, thereby avoiding the accumulation of asphalt at one end of the paving trough, thereby preventing excessive accumulation, causing squeezing, and affecting the paving progress and paving effect.
[0030] In order to reduce the investment of the driving device, the two spiral blades 4 in this device are connected to the same driving device through a transmission structure. The torsion direction of the two spiral blades 4 can be in the same direction or in the opposite direction. If the same direction is adopted, the driving device drives the two to rotate in opposite directions. At this time, the transmission structure can be a gear meshing method, such as a driving gear is fixed on the driving shaft of the first spiral blade, and a driven gear is fixed on the driving shaft of the second spiral blade. The two spiral blades 4 rotate in opposite directions by meshing the driving gear and the driven gear; if the reverse direction is adopted, the driving device drives the two to rotate in the same direction. At this time, the transmission direction of the chain and sprocket can be adopted. The first method is adopted in this embodiment, that is, the same direction is adopted. In this embodiment, the driving device is a motor, and the two spiral blades 4 are driven to rotate by the motor. In order to effectively protect the motor and the transmission structure, a protective cover is provided on its outer cover.
[0031] For safety protection, a top cover plate 6 is fixed on the top of the paving trough. In this embodiment, in order to reduce the width of the device, a mounting hole 61 is provided on the top cover plate 6. The mounting hole 61 is used to install the device on the lifting device and the moving device. In actual application, the mounting hole 61 can be set on both sides of the paving trough, and this embodiment does not limit this.
[0032] like Figure 5 As shown, in order to reduce the pushing pressure of the push plate 2 and achieve the effect of guiding the material to both sides, the bottom of the push plate 2 is an arc structure extending toward the spiral blade 4, and the bottom of the arc structure is provided with a chamfer, so as to play the role of a horizontal shovel, which is convenient for cutting the asphalt layer and reducing the cutting pressure of the asphalt; at the same time, the arc structure can also guide the shoveled asphalt into the spiral blade 4 and guide it to one side. In order to improve the strength of the push plate 2, a plurality of reinforcing ribs 7 are provided on the push plate 2 outside the paving bin, and the two ends of the reinforcing ribs 7 are fixed on both sides of the paving groove.
[0033] Because the partition 3 also has a pushing function, in order to reduce the pushing pressure of the partition 3 and achieve the effect of guiding the material to both sides, the bottom of the partition 3 is an arc structure extending away from the pushing plate 2, and the bottom of the arc structure is provided with a chamfer, so as to play the role of a horizontal shovel, which is convenient for cutting the asphalt layer and reducing the cutting pressure of the asphalt; at the same time, the arc structure can also guide the shoveled asphalt into the spiral blade 4 and guide it to one side. In order to improve the strength of the partition 3, a plurality of reinforcing ribs 7 are provided on one side of the partition 3 located in the direction of the pushing plate 2, and the two ends of the reinforcing ribs 7 are fixed on both sides of the paving groove.
[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown together, the working process of an asphalt paver:
[0035] The asphalt mixture in the hopper is continuously and evenly transported backwards to the roadbed at the feed port 5 in the front channel of the asphalt paver. The asphalt paver moves in the direction of the solid arrow driven by the paver. The partition 3 pushes the asphalt for the first time, and the spiral blade 4 transports the asphalt inward. The asphalt circulates back and forth in the paving trough to achieve uniform paving. The push plate 2 cuts the asphalt layer for a second time to ensure a uniform and stable thickness.
[0036] The utility model discloses an asphalt paver which solves the technical problem in the prior art that the asphalt paver spreads the road unevenly, resulting in a poor effect. The utility model provides two parallel and connected paving bins, and installs two spiral blades with opposite feeding directions in the paving bins, thereby ensuring that a sufficient amount of asphalt circulates in the paving bins, thereby reducing the pressure of the push plate while ensuring the paving effect.
[0037] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential 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 comprises a paving trough, the bottom of which is open, baffles are arranged on both sides, a push plate is fixed between the baffles on both sides, and the distance between the push plate and the ground determines the thickness of the paved asphalt; the interior of the paving trough is divided into two side-by-side 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 head and tail ends of the two material spreading bins are connected; a spiral blade is rotatably installed in each of the material spreading bins, and the bottom of the spiral blade does not protrude from the bottom of the pushing plate; the feeding directions of the two spiral blades are opposite; a feed port is provided on the material spreading bin away from the pushing plate.
2. An asphalt paver according to claim 1, characterized in that: The two spiral blades are connected to the same driving device through a transmission structure.
3. An asphalt paver according to claim 1, characterized in that: A top sealing plate is fixed on the top of the paving trough.
4. An asphalt paver according to claim 1, characterized in that: The feed port is arranged at a feed end corresponding to the spiral blade.
5. The asphalt paver according to claim 1, characterized in that: The bottom of the push plate is an arc-shaped structure extending toward the spiral blade.
6. An asphalt paver according to claim 5, characterized in that: A plurality of reinforcing ribs are arranged on the pushing plate outside the material paving bin, and two ends of the reinforcing ribs are fixed on two sides of the material paving groove.
7. An asphalt paver according to claim 6, characterized in that: The bottom of the partition is an arc-shaped structure extending away from the push plate.
8. An asphalt paver according to claim 7, characterized in that: A plurality of reinforcing ribs are provided on one side of the partition plate in the direction of the pushing plate, and two ends of the reinforcing ribs are fixed on two sides of the material laying groove.
9. An asphalt paver according to claim 2, characterized in that: The driving device and the outer side cover of the transmission structure are provided with protective covers.
10. An asphalt paver according to claim 1, characterized in that: The material laying trough is provided with mounting holes for mounting the device on the lifting device and the moving device.