An asphalt paver that allows for easy adjustment of asphalt flow rate.

Abstract

This invention discloses an asphalt paver with easily adjustable asphalt flow rate, relating to the field of road construction technology. It includes a frame with a drive wheel connected to it, a raw material bin connected to the frame, and a material discharge limiting groove connected below the raw material bin. A material discharge adjusting component is installed within the material discharge limiting groove. Both the material discharge adjusting component and the drive wheel are connected to a motor. This invention, by connecting the material discharge adjusting component and the drive wheel to the motor, allows the rotational speed of the material discharge adjusting component to adapt to the rotational speed of the drive wheel. This, in turn, adapts the paver's travel speed to the asphalt discharge speed, solving the problem that when the paver's operating speed changes significantly while the asphalt discharge speed remains constant, the paver's surface smoothness deteriorates and the pre-compaction density of the asphalt layer is affected during asphalt pavement construction.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, specifically to an asphalt pavement paver that facilitates adjustment of asphalt flow rate. Background Technology

[0002] With rapid economic development, increasingly sophisticated transportation infrastructure, rising vehicle speeds, increasing traffic volume, and a growing proportion of heavily loaded or even overloaded vehicles, higher technical requirements have been placed on asphalt pavements in my country. During asphalt pavement construction, significant variations in paver speed can worsen pavement smoothness. Furthermore, these drastic speed changes can affect the pre-compaction density of the pavement layers. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an asphalt pavement paver that facilitates adjustment of asphalt flow rate, solving problems such as poor pavement smoothness and impact on pre-compaction density of asphalt layers caused by significant changes in paver operating speed.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An asphalt pavement paver with easily adjustable asphalt flow rate includes a frame, a drive wheel connected to the frame, a raw material bin connected to the frame, a material discharge limiting groove connected below the raw material bin, a material discharge adjusting component provided in the material discharge limiting groove, and both the material discharge adjusting component and the drive wheel connected to a motor.

[0006] Preferably, a bracket is fixedly connected to the frame, the motor is fixedly connected to the bracket, the motor is connected to the feeding adjustment component via a first belt, and the motor is connected to the drive wheel via a second belt;

[0007] The frame is connected to a spreading roller, which is located below the feeding adjustment component. The spreading roller is connected to the motor via a third belt.

[0008] Preferably, a balance bar is rotatably connected to the bracket, a first connecting rod is fixedly connected to one end of the balance bar, a second connecting rod is fixedly connected to the other end of the balance bar, a flattening roller is rotatably connected to the first connecting rod, and a feeding adjustment component is rotatably connected to the second connecting rod at a position within the feeding limiting groove.

[0009] Preferably, a driver's cab is fixedly connected to the frame, and a canopy is provided above the driver's cab.

[0010] Preferably, a balance shaft is rotatably connected to the bracket, and a first bushing and a second bushing are sleeved on the balance shaft. One end of an adjusting rod is fixedly connected to the first bushing, and the other end of the adjusting rod passes through the balance shaft.

[0011] One end of a telescopic rod is fixedly connected to the second bushing, and the other end of the telescopic rod is fixedly connected to the balance bar. A first spring is sleeved on the telescopic rod, and the two ends of the first spring abut against the second bushing and the balance bar, respectively.

[0012] Preferably, the balance bar is provided with a leveling component, which is located between the spreading roller and the flattening roller.

[0013] Preferably, the leveling component includes a first leg and a second leg fixedly connected to the lower surface of the balance bar. A connecting plate is rotatably connected to the first leg, and one end of an elastic telescopic rod is rotatably connected to the second leg. The other end of the elastic telescopic rod is rotatably connected to the connecting plate. The connection point between the first leg and the elastic telescopic rod on the connecting plate and the connection point between the elastic telescopic rod and the connecting plate are not in a straight line.

[0014] Preferably, a scraper is rotatably connected to the connecting plate, a first limiting protrusion is fixedly connected to the connecting plate, a second limiting protrusion is fixedly connected to the scraper, and a torsion spring is provided on the rotating shaft that rotatably connects the connecting plate and the scraper, with both ends of the torsion spring fixedly connected to the first limiting protrusion and the second limiting protrusion, respectively.

[0015] Preferably, the feeding adjustment assembly includes an adjustment shaft, which is rotatably connected to the second connecting rod. An adjustment roller is provided outside the adjustment shaft, and a synchronization assembly is provided between the adjustment roller and the adjustment shaft.

[0016] Several adjusting plates are inserted into the adjusting roller. The adjusting plates are slidably connected to the adjusting roller. One end of the adjusting plate inside the adjusting roller is rotatably connected to the synchronizing component. One end of the adjusting plate inside the adjusting roller is fixedly connected to one end of a second spring. The other end of the second spring is fixedly connected to the adjusting shaft.

[0017] Preferably, the synchronization component is composed of several synchronization links connected in a cross manner, the synchronization links are bent, and the bending angle of the synchronization links is greater than 90°.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] This application connects the material feeding adjustment component and the drive wheel to the motor, so that the rotation speed of the material feeding adjustment component and the drive wheel are adapted to each other. This makes the travel speed of the paver adapted to the asphalt feeding speed, thus solving the problem that when the paver's operating speed changes significantly while the asphalt feeding speed remains constant, the pavement smoothness will deteriorate and the pre-compaction density of the asphalt layer will be affected. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of the main structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the paving roller structure of the present invention;

[0022] Figure 3 This is a front view schematic diagram of a state structure of the feeding adjustment component of the present invention;

[0023] Figure 4 This is a front view schematic diagram of the synchronization component structure of the present invention;

[0024] Figure 5 This is a front view schematic diagram of another state structure of the feeding adjustment component of the present invention;

[0025] Figure 6 This is a left view schematic diagram of the balance bar connection structure of the present invention;

[0026] Figure 7 This is a front view schematic diagram of the scraping component structure of the present invention.

[0027] In the diagram: 1. Frame; 2. Drive wheel; 3. Cab; 4. Canopy; 5. Support frame; 6. Raw material hopper; 7. Motor; 8. Feeding adjustment assembly; 9. Feeding limit groove; 10. Spreading roller; 11. Flattening roller; 12. First connecting rod; 13. Balance bar; 14. Scraping assembly; 15. Adjusting rod; 16. First belt; 17. Second belt; 18. Third belt; 19. Balance shaft; 20. First bushing; 21. Second bushing ; 22. Telescopic rod; 23. First spring; 24. Second connecting rod; 81. Adjusting plate; 82. Adjusting roller; 83. Synchronization assembly; 84. Second spring; 85. Adjusting shaft; 83. Synchronization connecting rod; 141. First support leg; 142. Second support leg; 143. Elastic telescopic rod; 144. Connecting plate; 145. First limiting protrusion; 146. Second limiting protrusion; 147. Rotating shaft; 148. Torsion spring; 149. Scraper. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Example 1

[0030] Please see Figure 1 The present invention provides a technical solution: an asphalt pavement paver that facilitates adjustment of asphalt flow rate, comprising a frame 1, a drive wheel 2 connected to the frame 1, a raw material bin 6 connected to the frame 1, a material discharge limiting groove 9 connected below the raw material bin 6, a material discharge limiting groove 9 being provided with a material discharge adjustment component 8, and both the material discharge adjustment component 8 and the drive wheel 2 being connected to a motor 7.

[0031] Preferably, a bracket 5 is fixedly connected to the frame 1, the motor 7 is fixedly connected to the bracket 5, the motor 7 is connected to the feeding adjustment component 8 through a first belt 16, and the motor 7 is connected to the drive wheel 2 through a second belt 17.

[0032] The working principle and beneficial effects of the above scheme are as follows:

[0033] By connecting the material feeding adjustment component 8 and the drive wheel 2 to the motor 7, the rotation speed of the material feeding adjustment component 8 and the drive wheel 2 are adapted to each other, thereby adapting the paver's travel speed to the asphalt feeding speed. This solves the problem that when the paver's operating speed changes significantly while the asphalt feeding speed remains constant, the paver's paving smoothness deteriorates and the pre-compaction density of the asphalt layer is affected.

[0034] Example 2

[0035] Please see Figure 1-2 Based on Embodiment 1, a spreading roller 10 is connected to the frame 1. The spreading roller 10 is located below the feeding adjustment component 8. The spreading roller 10 is connected to the motor 7 via a third belt 18.

[0036] Preferably, a balance bar 13 is rotatably connected to the bracket 5, one end of the balance bar 13 is fixedly connected to a first connecting rod 12, and the other end of the balance bar 13 is fixedly connected to a second connecting rod 24. A flattening roller 11 is rotatably connected to the first connecting rod 12, and a feeding adjustment component 8 is rotatably connected to the second connecting rod 24 at a position within the feeding limit groove 9.

[0037] The working principle and beneficial effects of the above scheme are as follows:

[0038] The flattening roller 11 and the material feeding adjustment component 8 are connected by the first connecting rod 12, the balance bar 13, and the second connecting rod 24. A lever structure is formed between the flattening roller 11 and the material feeding adjustment component 8. When the distance between the flattening roller 11 and the road surface increases, the position of the material feeding adjustment component 8 in the material feeding limit groove 9 moves downward, increasing the feeding speed of the material feeding adjustment component 8 so that it is equivalent to the amount of asphalt raw material of the previous road surface. When the previous road surface becomes thicker, the feeding speed of the material feeding adjustment component 8 can meet the requirements of the same road surface thickness, ensuring the consistency of the road surface thickness and increasing the smoothness of the road surface.

[0039] Example 3

[0040] Please see Figure 1 Based on embodiments 1-2, a driver's cab 3 is fixedly connected to the frame 1, and a canopy 4 is provided above the driver's cab 3.

[0041] The working principle and beneficial effects of the above scheme are as follows:

[0042] A canopy 4 is installed above the cab 3, which increases the comfort of use.

[0043] Example 4

[0044] Please see Figure 1 , 6 Based on embodiments 1-3, a balance shaft 19 is rotatably connected to the bracket 5, and a first bushing 20 and a second bushing 21 are sleeved on the balance shaft 19. One end of an adjusting rod 15 is fixedly connected to the first bushing 20, and the other end of the adjusting rod 15 passes through the balance rod 13.

[0045] One end of a telescopic rod 22 is fixedly connected to the second bushing 21, and the other end of the telescopic rod 22 is fixedly connected to the balance bar 13. A first spring 23 is sleeved on the telescopic rod 22, and the two ends of the first spring 23 abut against the second bushing 21 and the balance bar 13 respectively.

[0046] The working principle and beneficial effects of the above scheme are as follows:

[0047] The first spring 23 acts between the second bushing 21 and the balance bar 13. The first spring 23 applies force to the balance bar 13. When the thickness of the paved road surface is different, the flattening roller 11 can always apply downward pressure to the paved road surface, and the pressure is controlled within a suitable range. This ensures that the road surface can be compacted and also avoids the situation where the roadbed is damaged due to excessive pressure, thus ensuring the flatness of the paved road surface.

[0048] Example 5

[0049] Please see Figure 1 , 7Based on embodiments 1-4, a leveling component 14 is provided on the balance bar 13, and the leveling component 14 is located between the spreading roller 10 and the flattening roller 11.

[0050] The leveling assembly 14 includes a first leg 141 and a second leg 142 fixedly connected to the lower surface of the balance bar 13. A connecting plate 144 is rotatably connected to the first leg 141. One end of an elastic telescopic rod 143 is rotatably connected to the second leg 142. The other end of the elastic telescopic rod 143 is rotatably connected to the connecting plate 144. The connection point between the first leg 141 and the elastic telescopic rod 143 on the connecting plate 144 and the connection point between the elastic telescopic rod 143 and the connecting plate 144 are not in a straight line.

[0051] A scraper 149 is rotatably connected to the connecting plate 144. A first limiting protrusion 145 is fixedly connected to the connecting plate 144. A second limiting protrusion 146 is fixedly connected to the scraper 149. A torsion spring 148 is provided on the rotating shaft 147 that rotatably connects the connecting plate 144 and the scraper 149. The two ends of the torsion spring 148 are fixedly connected to the first limiting protrusion 145 and the second limiting protrusion 146, respectively.

[0052] The working principle and beneficial effects of the above scheme are as follows:

[0053] During the secondary leveling of the asphalt material initially leveled by the paving roller 10 by the leveling component 14, when a hard bump appears on the roadbed, the scraper 149 overcomes the elastic force of the torsion spring 148 and rotates relative to the connecting plate 144 to avoid the bump. When the scraper 149 cannot avoid the bump, the connecting plate 144 contacts the bump, thereby squeezing the elastic telescopic rod 143. The elastic telescopic rod 143 retracts, and the connecting plate 144 rotates around the first support 141 to avoid the bump. Through the design of the specific structure of the leveling component 14, it is possible to ensure that the leveling component 14 can meet the requirements for secondary leveling of the road surface and also meet the requirements for its own long-term use, thus increasing the practicality of the component.

[0054] Example 6

[0055] Please see Figure 1-5 Based on embodiments 1-5, the feeding adjustment component 8 includes an adjustment shaft 85, which is rotatably connected to the second connecting rod 24. An adjustment roller 82 is provided outside the adjustment shaft 85, and a synchronization component 83 is provided between the adjustment roller 82 and the adjustment shaft 85.

[0056] A plurality of adjusting plates 81 are inserted into the adjusting roller 82. The adjusting plates 81 are slidably connected to the adjusting roller 82. One end of the adjusting plate 81 located inside the adjusting roller 82 is rotatably connected to the synchronization component 83. One end of the adjusting plate 81 located inside the adjusting roller 82 is fixedly connected to one end of the second spring 84. The other end of the second spring 84 is fixedly connected to the adjusting shaft 85.

[0057] The synchronization component 83 is composed of several synchronization links 831 connected in a cross manner. The synchronization links 831 are bent and the bending angle of the synchronization links 831 is greater than 90°.

[0058] Preferably, the material feeding limiting groove 9 is narrow at the top and wide at the bottom.

[0059] The working principle and beneficial effects of the above scheme are as follows:

[0060] As the paved surface thickens, the leveling roller 11 rises in height, causing the balance bar 13 to rotate. This, via the second connecting rod 24, lowers the height of the material adjustment component 8 within the material limiting groove 9. Since the material limiting groove 9 is narrower at the top and wider at the bottom, the material adjustment component 8 descends. Under the action of the second spring 84, the adjustment plate 81 slides outward. Because the adjustment plate 81 is connected to the synchronization component 83, which is composed of several bent synchronization connecting rods 831 connected in a cross pattern, when one adjustment plate 81 slides outward, the remaining adjustment plates 81 also slide outward, and all adjustment plates 81 slide outward by the same distance. As the material adjustment component 8 descends, the adjustment plate 81 remains in contact with the material limiting groove 9, and the portion of the adjustment plate 81 located outside the adjustment roller 82 continuously increases. This increases the material discharge speed of the adjustment plate 81 while maintaining a constant rotational speed (with the paver's travel speed remaining constant), meeting the material requirements of the thickened road surface and ensuring the smoothness of the road surface.

[0061] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] Although embodiments of the 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 to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An asphalt pavement paver with easily adjustable asphalt flow rate, characterized in that: Includes a frame (1), on which a drive wheel (2) is connected, and on which a raw material bin (6) is connected, and below the raw material bin (6) is a discharge limiting groove (9), and a discharge adjusting component (8) is provided in the discharge limiting groove (9), and the discharge adjusting component (8) and the drive wheel (2) are both connected to a motor (7); A bracket (5) is fixedly connected to the frame (1), and the motor (7) is fixedly connected to the bracket (5). The motor (7) is connected to the feeding adjustment component (8) through the first belt (16), and the motor (7) is connected to the drive wheel (2) through the second belt (17). A balance bar (13) is rotatably connected to the bracket (5). A first connecting rod (12) is fixedly connected to one end of the balance bar (13), and a second connecting rod (24) is fixedly connected to the other end of the balance bar (13). A flattening roller (11) is rotatably connected to the first connecting rod (12), and a feeding adjustment component (8) is rotatably connected to the second connecting rod (24) at the position inside the feeding limit groove (9). A lever structure is formed between the flattening roller (11) and the feeding adjustment component (8). When the distance between the flattening roller (11) and the road surface increases, the feeding adjustment component (8) moves downward in the feeding limit groove (9), increasing the feeding speed of the feeding adjustment component (8).

2. The asphalt pavement paver with easily adjustable asphalt flow rate according to claim 1, characterized in that: The frame (1) is connected to a spreading roller (10), which is located below the feeding adjustment component (8). The spreading roller (10) is connected to the motor (7) via a third belt (18).

3. The asphalt pavement paver with easily adjustable asphalt flow rate according to claim 1, characterized in that: A driver's cab (3) is fixedly connected to the frame (1), and a canopy (4) is provided above the driver's cab (3).

4. The asphalt pavement paver with easily adjustable asphalt flow rate according to claim 1, characterized in that: A balance shaft (19) is rotatably connected to the bracket (5). A first bushing (20) and a second bushing (21) are sleeved on the balance shaft (19). One end of an adjusting rod (15) is fixedly connected to the first bushing (20), and the other end of the adjusting rod (15) passes through the balance rod (13). One end of a telescopic rod (22) is fixedly connected to the second bushing (21), and the other end of the telescopic rod (22) is fixedly connected to the balance bar (13). A first spring (23) is sleeved on the telescopic rod (22), and the two ends of the first spring (23) abut against the second bushing (21) and the balance bar (13) respectively.

5. An asphalt pavement paver with easily adjustable asphalt flow rate according to claim 1, characterized in that: A leveling component (14) is provided on the balance bar (13), and the leveling component (14) is located between the spreading roller (10) and the flattening roller (11).

6. An asphalt pavement paver with easily adjustable asphalt flow rate according to claim 5, characterized in that: The leveling component (14) includes a first leg (141) and a second leg (142) fixedly connected to the lower surface of the balance bar (13). A connecting plate (144) is rotatably connected to the first leg (141), and one end of an elastic telescopic rod (143) is rotatably connected to the second leg (142). The other end of the elastic telescopic rod (143) is rotatably connected to the connecting plate (144). The connection point between the first leg (141) and the elastic telescopic rod (143) on the connecting plate (144) and the connection point between the elastic telescopic rod (143) and the connecting plate (144) are not in a straight line.

7. An asphalt pavement paver with easily adjustable asphalt flow rate according to claim 6, characterized in that: A scraper (149) is rotatably connected to the connecting plate (144). A first limiting protrusion (145) is fixedly connected to the connecting plate (144). A second limiting protrusion (146) is fixedly connected to the scraper (149). A torsion spring (148) is provided on the rotating shaft (147) that rotatably connects the connecting plate (144) and the scraper (149). The two ends of the torsion spring (148) are fixedly connected to the first limiting protrusion (145) and the second limiting protrusion (146) respectively.

8. An asphalt pavement paver with easily adjustable asphalt flow rate according to claim 1, characterized in that: The feeding adjustment assembly (8) includes an adjustment shaft (85), which is rotatably connected to the second connecting rod (24). An adjustment roller (82) is provided outside the adjustment shaft (85), and a synchronization assembly (83) is provided between the adjustment roller (82) and the adjustment shaft (85). A plurality of adjusting plates (81) are inserted into the adjusting roller (82). The adjusting plates (81) are slidably connected to the adjusting roller (82). One end of the adjusting plate (81) located inside the adjusting roller (82) is rotatably connected to the synchronizing component (83). One end of the second spring (84) is fixedly connected to one end of the adjusting plate (81) located inside the adjusting roller (82). The other end of the second spring (84) is fixedly connected to the adjusting shaft (85).

9. An asphalt pavement paver with easily adjustable asphalt flow rate according to claim 8, characterized in that: The synchronization component (83) is composed of several synchronization links (831) connected in a cross manner. The synchronization links (831) are bent and the bending angle of the synchronization links (831) is greater than 90°.

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