An asphalt paver for road construction

Abstract

This utility model relates to the field of asphalt pavers and discloses an asphalt paver for highway construction, including a machine body. An asphalt tank is located on the top of the machine body, with a groove on the outer circumference of the asphalt tank. A stirring and adjusting mechanism is located inside the asphalt tank. L-shaped limiting grooves are symmetrically arranged on the bottom of the machine body, with L-shaped limiting blocks slidably arranged inside the L-shaped limiting grooves. A receiving seat is slidably arranged on the bottom of the machine body. In this asphalt paver for highway construction, the asphalt discharged from the asphalt tank flows into a guide chute within the receiving seat and then exits through the discharge outlet. When adjusting the asphalt discharge position, there is no need to adjust the machine body. A servo motor drives a lead screw, which, in conjunction with a sprocket and chain, adjusts the position of the moving block within the limiting seat. This, in conjunction with the L-shaped limiting block within the L-shaped limiting groove, adjusts the position of the receiving seat, thus solving the problem of existing asphalt pavers making it difficult to conveniently adjust the asphalt discharge position according to requirements.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt pavers, specifically an asphalt paver for highway construction. Background Technology

[0002] An asphalt paver is a machine used to evenly spread asphalt mixture on a road base layer and perform preliminary compaction and leveling. It mainly consists of two parts: traction and paving / compacting / screeding, and comes in two types: tracked and wheeled.

[0003] Patent CN221072294U discloses an asphalt paving machine for building bridges. It includes a vehicle body and an asphalt tank. The asphalt tank is fixed to the upper right side of the vehicle body. A rotating shaft is provided inside the asphalt tank. Several mixing blades are fixed to the outside of the rotating shaft. Each mixing blade is embedded with an electric heating rod. A scraper plate that fits against the inner wall of the asphalt tank is fixed to the outside of the rotating shaft. This device heats the mixing blades by installing electric heating rods inside the mixing blades. During the mixing process, the mixing blades also heat the asphalt evenly, which not only ensures the uniformity of asphalt heating, but also helps to prevent the asphalt from solidifying due to uneven heating.

[0004] However, this device controls the closure of the discharge pipe through a valve, allowing asphalt from the asphalt tank to be discharged for paving. Since there is only one discharge pipe and its position is fixed, adjusting the discharge position of the asphalt requires adjusting the entire asphalt machine, which is time-consuming and laborious. Therefore, an asphalt paver for highway construction is proposed to solve the problem that existing asphalt machines cannot easily adjust the asphalt discharge position according to needs. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an asphalt paver for highway construction, which solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an asphalt paver for highway construction, comprising a machine body, an asphalt tank at the top of the machine body, a groove on the outer circumference of the asphalt tank, a mixing and adjusting mechanism in the inner cavity of the asphalt tank, symmetrically L-shaped limiting grooves at the bottom of the machine body, an L-shaped limiting block slidably disposed within the inner cavity of the L-shaped limiting groove, a receiving seat slidably disposed at the bottom of the machine body, a guiding chute in the inner cavity of the receiving seat, a discharge port at the bottom of the receiving seat, a leveling mechanism at the bottom of the machine body, symmetrically and fixedly connected limiting seats at the bottom of the machine body, a moving block slidably disposed within the inner cavity of the limiting seat, a lead screw rotatably connected within the inner cavity of the limiting seat, a servo motor fixedly connected to one end of the limiting seat, and sprockets rotatably connected to the other ends of both limiting seats, the sprockets being connected by a chain, and a feed hopper disposed within the inner cavity of the groove.

[0009] Preferably, the inner cavity of the asphalt tank and the guide chute are interconnected, the cavity wall of the guide chute is smooth, the L-shaped limiting block is fixedly connected to the receiving seat, and a sealing strip is provided between the receiving seat and the machine body.

[0010] Preferably, the output shaft of the servo motor is fixedly connected to the lead screw, the lead screw passes through the moving block and the two are threadedly connected, and the lead screw passes through the limiting seat and is fixedly connected to the sprocket.

[0011] Preferably, the stirring and regulating mechanism includes a cover that is slidably disposed in the inner cavity of the asphalt tank, a stirring shaft that is rotatably connected to the bottom of the cover, a spiral conveying blade and a stirring plate that are disposed on the outer ring of the stirring shaft, a frustum stopper that is fixedly connected to the bottom of the stirring shaft, the surface of the frustum stopper being smooth, and a motor that is fixedly connected to the top of the cover.

[0012] Preferably, the output shaft of the motor is fixedly connected to the stirring shaft, the top of the cover is symmetrically provided with lifting arms, the outer ring of the asphalt tank is symmetrically and fixedly connected with a fixed seat, one side of the fixed seat is fixedly connected with an electric push rod, and the top of the fixed seat is symmetrically provided with guide rods.

[0013] Preferably, the guide rod passes through the lifting arm and the two are slidably connected. A baffle is fixedly connected to the bottom of the cover. A second slot is opened at one end of the baffle. When the cover is in the initial position, the frustum plug blocks the bottom of the asphalt tank and the slot communicates with the second slot. When the cover moves to the top, the baffle blocks the slot.

[0014] Preferably, the bottom of the leveling mechanism is provided with a leveling plate, and the top of the leveling plate is fixedly connected to a U-shaped frame. The U-shaped frame passes through the machine body and the two are slidably connected. The top of the machine body is fixedly connected to an electric telescopic rod, which is fixedly connected to the U-shaped frame. Both ends of the U-shaped frame are provided with scales. When the leveling plate is in contact with the paving surface, the zero mark of the scale is flush with the top surface of the machine body.

[0015] (III) Beneficial Effects

[0016] 1. This asphalt paver for highway construction discharges asphalt from the asphalt tank into the guide chute inside the receiving seat, and then discharges from the outlet. When adjusting the asphalt discharge position, there is no need to adjust the machine body. The servo motor drives the lead screw, which works with the sprocket and chain to adjust the position of the moving block inside the limit seat. This, in conjunction with the L-shaped limit block in the L-shaped limit groove, adjusts the position of the receiving seat, thus solving the problem that existing asphalt machines cannot easily adjust the asphalt discharge position according to needs.

[0017] 2. During the asphalt addition process of this highway construction asphalt paver, the first and second asphalt inlets are interconnected, and the truncated cone stopper blocks the bottom outlet of the asphalt tank. At the same time, the motor is turned on to drive the spiral conveying blades and mixing plates on the mixing shaft to mix the asphalt. When it is necessary to discharge the asphalt, the electric push rod and guide rod on the fixed seat drive the cover, along with the mixing shaft and the truncated cone stopper, to move upward, opening the bottom of the asphalt tank, thus improving the convenience of using this highway construction asphalt paver. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0021] Figure 4 This is a structural diagram of the present utility model.

[0022] In the diagram: 1. Machine body; 2. Asphalt tank; 3. Groove opening; 4. Mixing and adjusting mechanism; 401. Cover; 402. Mixing shaft; 403. Spiral conveyor blades; 404. Frustum plug; 405. Motor; 406. Lifting arm; 407. Fixed seat; 408. Electric push rod; 409. Guide rod; 4010. Baffle; 4011. Second groove opening; 5. L-shaped limiting groove; 6. L-shaped limiting block; 7. Receiving seat; 8. Guide chute; 9. Discharge outlet; 10. Leveling mechanism; 101. Flat plate; 102. U-shaped frame; 103. Electric telescopic rod; 104. Scale; 11. Limiting seat; 12. Moving block; 13. Lead screw; 14. Servo motor; 15. Sprocket; 16. Chain; 17. Feed hopper. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figure 1-4 An asphalt paver for highway construction includes a body 1, an asphalt tank 2 on the top of the body 1, a groove 3 on the outer ring of the asphalt tank 2, a mixing and adjusting mechanism 4 in the inner cavity of the asphalt tank 2, L-shaped limiting grooves 5 symmetrically provided on the bottom of the body 1, L-shaped limiting blocks 6 slidably provided in the inner cavity of the L-shaped limiting grooves 5, a receiving seat 7 slidably provided on the bottom of the body 1, a material guiding chute 8 in the inner cavity of the receiving seat 7, a discharge port 9 at the bottom of the receiving seat 7, a leveling mechanism 10 at the bottom of the body 1, limiting seats 11 symmetrically and fixedly connected to the bottom of the body 1, a moving block 12 slidably provided in the inner cavity of the limiting seat 11, a lead screw 13 rotatably connected to the inner cavity of the limiting seat 11, a servo motor 14 fixedly connected to one end of the limiting seat 11, and sprockets 15 rotatably connected to the other ends of the two limiting seats 11, the sprockets 15 being connected by chains 16, and a feeding hopper 17 in the inner cavity of the groove 3.

[0025] Furthermore, the inner cavity of the asphalt tank 2 is interconnected with the inner cavity of the guide chute 8. The inner wall of the guide chute 8 is smooth. The L-shaped limiting block 6 is fixedly connected to the receiving seat 7. A sealing strip is provided between the receiving seat 7 and the machine body 1.

[0026] Furthermore, the output shaft of the servo motor 14 is fixedly connected to the lead screw 13, the lead screw 13 passes through the moving block 12 and the two are threadedly connected, the lead screw 13 passes through the limit seat 11 and is fixedly connected to the sprocket 15.

[0027] Furthermore, the mixing and regulating mechanism 4 includes a cover 401 that is slidably disposed in the inner cavity of the asphalt tank 2. The bottom of the cover 401 is rotatably connected to a mixing shaft 402. The outer ring of the mixing shaft 402 is provided with a spiral conveying blade 403 and a mixing plate. The bottom of the mixing shaft 402 is fixedly connected to a frustum stopper 404. The surface of the frustum stopper 404 is smooth. The top of the cover 401 is fixedly connected to a motor 405.

[0028] Furthermore, the output shaft of the motor 405 is fixedly connected to the stirring shaft 402, the top of the cover 401 is symmetrically provided with lifting arms 406, the outer ring of the asphalt tank 2 is symmetrically and fixedly connected with a fixed seat 407, one side of the fixed seat 407 is fixedly connected with an electric push rod 408, and the top of the fixed seat 407 is symmetrically provided with guide rods 409.

[0029] Furthermore, the guide rod 409 passes through the lifting arm 406 and the two are slidably connected. A baffle 4010 is fixedly connected to the bottom of the cover 401. One end of the baffle 4010 has a second slot 4011. When the cover 401 is in its initial position, the frustum plug 404 blocks the bottom of the asphalt tank 2, and the slot 3 communicates with the second slot 4011. When the cover 401 moves to the top, the baffle 4010 blocks the slot 3. During the asphalt addition process, the slot 3 communicates with the second slot. 4011 is interconnected, and the frustum plug 404 blocks the bottom outlet of the asphalt tank 2. At the same time, the motor 405 is turned on to drive the spiral conveying blades 403 and the mixing plate on the mixing shaft 402 to mix the asphalt. When it is necessary to discharge the asphalt, the electric push rod 408 and the guide rod 409 on the fixed seat 407 drive the cover 401, along with the mixing shaft 402 and the frustum plug 404, to move upward, opening the bottom of the asphalt tank 2, thus improving the convenience of using this asphalt paver for highway construction.

[0030] Furthermore, a paving plate 101 is provided at the bottom of the paving mechanism 10, and a U-shaped frame 102 is fixedly connected to the top of the paving plate 101. The U-shaped frame 102 passes through the machine body 1 and the two are slidably connected. An electric telescopic rod 103 is fixedly connected to the top of the machine body 1. The electric telescopic rod 103 is fixedly connected to the U-shaped frame 102. Both ends of the U-shaped frame 102 are provided with scales 104. When the paving plate 101 is in contact with the paving surface, the zero mark of the scale 104 is flush with the top surface of the machine body 1. According to the thickness of the asphalt paving, the electric telescopic rod 103 drives the U-shaped frame 102 to move upward. The upward height of the paving plate 101 is precisely controlled by the scale 104 to achieve the purpose of precise adjustment of the asphalt paving thickness and improve the practicality of this asphalt paving machine for highway construction.

[0031] Working principle: When using this asphalt paver for highway construction, after moving the machine body 1 to the road to be paved, asphalt is added into the asphalt tank 2 from the feed hopper 17 and the slot 3. The asphalt will be discharged into the guide chute 8 in the receiving seat 7 and then discharged from the outlet 9. When adjusting the asphalt discharge position, there is no need to adjust the machine body 1. The servo motor 14 drives the lead screw 13 in conjunction with the sprocket 15 and the chain 16 to adjust the position of the moving block 12 in the limit seat 11. In conjunction with the L-shaped limit block 6 in the L-shaped limit groove 5, the position of the receiving seat 7 can be adjusted, which solves the problem that existing asphalt machines are difficult to adjust the asphalt discharge position conveniently according to the needs.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 utility model according to the specific circumstances.

[0033] 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An asphalt paver for road construction comprising a machine body (1), characterized in that: The top of the machine body (1) is provided with an asphalt tank (2), the outer ring of the asphalt tank (2) is provided with a groove (3), the inner cavity of the asphalt tank (2) is provided with a stirring and adjusting mechanism (4), the bottom of the machine body (1) is symmetrically provided with L-shaped limiting grooves (5), the inner cavity of the L-shaped limiting grooves (5) is slidably provided with L-shaped limiting blocks (6), the bottom of the machine body (1) is slidably provided with a receiving seat (7), the inner cavity of the receiving seat (7) is provided with a material guiding chute (8), the bottom of the receiving seat (7) is provided with a discharge port (9), the machine body ( 1) The bottom of the machine body (1) is provided with a leveling mechanism (10). The bottom of the machine body (1) is symmetrically connected with a limiting seat (11). The inner cavity of the limiting seat (11) is slidably provided with a moving block (12). The inner cavity of the limiting seat (11) is rotatably connected with a lead screw (13). One end of the limiting seat (11) is fixedly connected with a servo motor (14). The other ends of the two limiting seats (11) are rotatably connected with sprockets (15). The sprockets (15) are connected by a chain (16). The inner cavity of the slot (3) is provided with a feeding hopper (17).

2. The asphalt paver for road construction according to claim 1, characterized in that: The inner cavity of the asphalt tank (2) is interconnected with the inner cavity of the guide chute (8). The inner wall of the guide chute (8) is smooth. The L-shaped limiting block (6) is fixedly connected to the receiving seat (7). A sealing strip is provided between the receiving seat (7) and the machine body (1).

3. The asphalt paver for road construction according to claim 1, characterized in that: The output shaft of the servo motor (14) is fixedly connected to the lead screw (13), the lead screw (13) passes through the moving block (12) and the two are threadedly connected, the lead screw (13) passes through the limiting seat (11) and is fixedly connected to the sprocket (15).

4. The asphalt paver for road construction according to claim 1, characterized in that: The stirring adjustment mechanism (4) includes a cover (401) slidably disposed in the inner cavity of the asphalt tank (2). The bottom of the cover (401) is rotatably connected to a stirring shaft (402). The outer ring of the stirring shaft (402) is provided with a spiral conveying blade (403) and a stirring plate. The bottom of the stirring shaft (402) is fixedly connected to a frustum plug (404). The surface of the frustum plug (404) is smooth. The top of the cover (401) is fixedly connected to a motor (405).

5. The asphalt paver for road construction according to claim 4, characterized in that: The output shaft of the motor (405) is fixedly connected to the stirring shaft (402). The top of the cover (401) is symmetrically provided with lifting arms (406). The outer ring of the asphalt tank (2) is symmetrically and fixedly connected with a fixed seat (407). An electric push rod (408) is fixedly connected to one side of the fixed seat (407). A guide rod (409) is symmetrically provided on the top of the fixed seat (407).

6. An asphalt paver for highway construction according to claim 5, characterized in that: The guide rod (409) passes through the lifting arm (406) and the two are slidably connected. The bottom of the cover (401) is fixedly connected to a baffle (4010). One end of the baffle (4010) is provided with a second slot (4011). When the cover (401) is in the initial position, the frustum plug (404) blocks the bottom of the asphalt tank (2) and the slot (3) communicates with the second slot (4011). When the cover (401) moves up to the top, the baffle (4010) blocks the slot (3).

7. An asphalt paver for highway construction according to claim 1, characterized in that: The paving mechanism (10) has a paving plate (101) at its bottom and a U-shaped frame (102) fixedly connected to the top of the paving plate (101). The U-shaped frame (102) passes through the machine body (1) and the two are slidably connected. An electric telescopic rod (103) is fixedly connected to the top of the machine body (1). The electric telescopic rod (103) is fixedly connected to the U-shaped frame (102). Both ends of the U-shaped frame (102) are provided with scales (104). When the paving plate (101) is in contact with the paving surface, the zero mark of the scale (104) is flush with the top surface of the machine body (1).

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