High-viscoelastic asphalt mixture laying equipment for ultra-thin overlay construction

Abstract

The utility model is applicable to the technical field of asphalt paving, and provides high-viscoelastic asphalt mixture paving equipment for ultra-thin overlay construction, which comprises a machine body, a conveying chain arranged on the machine body and used for conveying asphalt mixture, and two hoppers arranged on the machine body, overturning driving elements are arranged between the left side surface and the right side surface of the machine body and the lower surfaces of the two hoppers located on the two sides of the conveying chain, retractable baffles are arranged in the sides, close to the conveying chain, of the hoppers, rotating bases are arranged on the front sides and the rear sides of the hoppers, and the rotating bases are installed on the machine body; according to the high-viscosity and high-elasticity asphalt mixture conveying device, high-viscosity and high-elasticity asphalt mixtures in the hopper are blocked through the retractable baffles, the problem that the high-viscosity and high-elasticity asphalt mixtures fall onto a conveying chain, and consequently the conveying chain is bent is solved, and the high-viscosity and high-elasticity asphalt mixture conveying device is simple in structure, convenient to use and high in practicability. And normal conveying of the high-viscoelastic asphalt mixture is ensured.

Description

Technical Field

[0001] This utility model relates to the field of asphalt paving technology, and more specifically, it relates to a high-viscoelastic asphalt mixture paving equipment for ultra-thin overlay construction. Background Technology

[0002] Asphalt pavement has advantages such as smooth surface, less dust, impermeability, and durability. It is widely used in the construction of high-grade roads. When constructing asphalt pavement, a paver is required. The paver spreads the mixed asphalt mixture evenly on the prepared subgrade or base according to certain technical requirements, and performs preliminary compaction and leveling.

[0003] A search of existing relevant patents revealed that CN222024830U discloses a road asphalt paving device. This prior art uses a movable baffle that extends from below the hopper during loading and works with a support frame to protect the scraper conveyor chain below, preventing the asphalt mixture from directly impacting the scraper conveyor chain and causing damage.

[0004] However, the applicant discovered the following problems with the existing technology: Although the existing technology is equipped with a movable baffle, when the hopper is being filled, the asphalt mixture in the hopper will fall onto the movable baffle. When the movable baffle retracts, the mixture hopper on the movable baffle will fall onto the scraper conveyor chain. This results in residue on the scraper conveyor chain. When the scraper conveyor chain is conveying the mixture, the residual asphalt mixture will fall onto the ground, affecting the uniformity of the asphalt mixture that falls onto the ground, which in turn affects the construction of the ultra-thin overlay. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high viscoelastic asphalt mixture paving equipment for ultra-thin overlay construction, which uses a retractable baffle to block the high viscoelastic asphalt mixture in the hopper, preventing the high viscoelastic asphalt mixture from falling onto the conveyor chain and causing the conveyor chain to bend, thus ensuring the normal transportation of the high viscoelastic asphalt mixture.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-viscoelastic asphalt mixture paving device for ultra-thin overlay construction includes a machine body with a conveyor chain for transporting asphalt mixture. Two hoppers are mounted on the machine body, located on either side of the conveyor chain. A tilting drive element is positioned between the left and right sides of the machine body and the lower surface of the hoppers. A retractable baffle is located inside the hopper on the side closest to the conveyor chain. Rotating seats are located on both the front and rear sides of the hopper, mounted on the machine body. A movable shaft is located on the surface of the hopper near the rotating seat, with the other end of the shaft rotatably extending through the rotating seat. A transmission assembly for controlling the rotation of the retractable baffle is located on the front surface of the hopper.

[0008] The present invention is further configured such that: the transmission assembly includes a connecting shaft, the connecting shaft is located on the front side of the hopper, the rear end of the connecting shaft rotatably passes through the feed hopper and is connected to a retractable baffle, and the front end of the connecting shaft is fitted with an external gear.

[0009] The present invention is further configured such that: a rack is meshed with the outer surface of the external gear, a contact rod is provided on the lower surface of the rack, a sliding seat is provided on the front surface of the hopper, the sliding seat is slidably sleeved on the outer surface of the contact rod, a sleeve plate is sleeved on the outer surface of the lower end of the contact rod, and a spring is movably sleeved on the outer surface of the contact rod between the upper surface of the sleeve plate and the lower surface of the sliding seat.

[0010] The present invention is further configured such that: a cam is sleeved on the outer surface of the front end of the movable shaft, the lower end of the contact rod is hemispherical, and the lower end of the contact rod contacts the outer surface of the cam and slides.

[0011] The present invention is further configured such that: the retractable baffle includes a top plate, the rear end of the connecting shaft is connected to the front surface of the top plate, a retractable plate is provided on the lower side of the top plate, a retractable groove is provided on the lower surface of the top plate, the upper side of the retractable plate extends into the retractable groove and slides in the retractable groove, a screw is rotatably connected to the top wall of the retractable groove, and a threaded groove is provided on the upper surface of the retractable plate and threaded onto the outer surface of the screw.

[0012] The present invention is further configured such that: a transmission cavity is provided in the top plate, a fixing rod is provided on the rear inner wall of the hopper, the front end of the fixing rod rotates through the transmission cavity, and a face gear is provided at the front end of the fixing rod.

[0013] The present invention is further configured such that: a transmission shaft is provided on the upper surface of the screw, the upper end of the transmission shaft rotates through into the transmission cavity, and a cylindrical gear is provided on the upper end of the transmission shaft to mesh with the face gear.

[0014] The advantages of this utility model are:

[0015] This invention uses a retractable baffle to block the high viscoelastic asphalt mixture in the hopper, preventing it from falling onto the conveyor chain and causing it to bend. This ensures the normal transport of the high viscoelastic asphalt mixture and also ensures the uniformity of the asphalt mixture that falls to the ground, thus guaranteeing the construction of ultra-thin overlays. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a high-viscoelastic asphalt mixture paving device for ultra-thin overlay construction according to this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a side view of the internal structure of the top plate of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0020] In the diagram: 1. Machine body; 2. Conveyor chain; 3. Hopper; 4. Tilting drive element; 5. Rotating seat; 6. Retractable baffle; 61. Top plate; 62. Shrink plate; 63. Shrink groove; 64. Screw; 65. Threaded groove; 66. Transmission cavity; 67. Transmission shaft; 68. Cylindrical gear; 69. Fixed rod; 610. Face gear;

[0021] 7. Transmission assembly; 71. Connecting shaft; 72. External gear; 73. Sliding seat; 74. Rack; 75. Sleeve; 76. Spring; 77. Cam; 78. Contact rod;

[0022] 8. Movable axis. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Please see Figure 1-4 The present invention provides the following technical solution:

[0026] Specifically, it refers to a high-viscoelastic asphalt mixture paving equipment for ultra-thin overlay construction, including a machine body 1, a conveyor chain 2 for conveying asphalt mixture on the machine body 1, two hoppers 3 on the machine body 1, the two hoppers 3 located on both sides of the conveyor chain 2, and a tilting drive element 4 between the left and right side surfaces of the machine body 1 and the lower surface of the hoppers 3. The conveyor chain 2 and the tilting drive element 4 are known technologies in the existing patent: CN222024830U, and will not be described in detail here.

[0027] In use, the high viscoelastic asphalt mixture is poured into the hopper 3, and the hopper 3 is rotated by the flipping drive element 4. The high viscoelastic asphalt mixture in the hopper 3 falls onto the conveyor chain 2, which spreads the high viscoelastic asphalt mixture evenly on the ground to be paved. After passing through the rolling equipment, an ultra-thin overlay is formed on the road surface.

[0028] A retractable baffle 6 is provided inside the hopper 3 on the side near the conveyor chain 2. Rotary seats 5 are provided on both the front and rear sides of the hopper 3. The rotating seats 5 are mounted on the machine body 1. A movable shaft 8 is provided on the surface of the hopper 3 near the rotating seat 5. The other end of the movable shaft 8 rotates through the rotating seat 5.

[0029] When in use, the retractable baffle 6 can rotate to a vertical position, thereby blocking the side of the hopper 3 near the conveyor chain 2. Therefore, when the hopper 3 is being loaded, the retractable baffle 6 can block the high viscoelastic asphalt mixture in the hopper 3, preventing the high viscoelastic asphalt mixture from falling onto the conveyor chain 2 and causing the conveyor chain 2 to bend, thus ensuring the normal conveying of the high viscoelastic asphalt mixture.

[0030] The front surface of the hopper 3 is provided with a transmission assembly 7 for controlling the rotation of the retractable baffle 6. The transmission assembly 7 includes a connecting shaft 71, which is located on the front side of the hopper 3. The rear end of the connecting shaft 71 rotatably passes through the hopper 3 and is connected to the retractable baffle 6. An external gear 72 is sleeved on the front end of the connecting shaft 71. A rack 74 is meshed on the outer surface of the external gear 72. A contact rod 78 is provided on the lower surface of the rack 74. A sliding seat 73 is provided on the front surface of the hopper 3. The sliding seat 73 is slidably sleeved on the outer surface of the contact rod 78. A sleeve plate 75 is sleeved on the outer surface of the lower end of the contact rod 78. A spring 76 is movably sleeved on the outer surface of the contact rod 78 between the upper surface of the sleeve plate 75 and the lower surface of the sliding seat 73. When the spring 76 is not compressed, the spring 76 will exert a pushing force on the sleeve plate 75, causing the sleeve plate 75 to be on the side away from the sliding seat 73.

[0031] A cam 77 is fitted on the outer surface of the front end of the movable shaft 8. The lower end of the contact rod 78 is hemispherical. The lower end of the contact rod 78 contacts the outer surface of the cam 77 and slides. When the flipping drive element 4 pushes the hopper 3 to rotate to one side of the conveyor chain 2, the movable shaft 8 drives the cam 77 to rotate synchronously. At this time, the cam 77 exerts a thrust on the contact rod 78, causing the contact rod 78 to move upward. At the same time, the sleeve plate 75 compresses the spring 76, causing the spring 76 to contract. The rack 74 moves upward with the contact rod 78. The rack 74 meshes with the external gear 72 to rotate. The connecting shaft 71 synchronously drives the retractable baffle 6 to rotate to the outside of the hopper 3. The retractable baffle 6 no longer blocks the high viscoelastic asphalt mixture in the hopper 3. The high viscoelastic asphalt mixture in the hopper 3 falls onto the conveyor chain 2.

[0032] The retractable baffle 6 includes a top plate 61, the rear end of the connecting shaft 71 is connected to the front surface of the top plate 61, a retractable plate 62 is provided on the lower side of the top plate 61, a retractable groove 63 is provided on the lower surface of the top plate 61, the upper side of the retractable plate 62 extends into the retractable groove 63 and slides in the retractable groove 63, a screw 64 is rotatably connected to the top wall of the retractable groove 63, and a threaded groove 65 is provided on the upper surface of the retractable plate 62 and threaded onto the outer surface of the screw 64.

[0033] When in use, the control screw 64 rotates, and the shrink plate 62 moves upward into the shrink groove 63 under the transmission of the thread. In this way, when the retractable baffle 6 rotates to the outside of the hopper 3, the shrink plate 62 shrinks, which can prevent the retractable baffles 6 on both sides from colliding.

[0034] A transmission cavity 66 is provided inside the top plate 61. A transmission shaft 67 is provided on the upper surface of the screw 64. The upper end of the transmission shaft 67 rotates and passes through the transmission cavity 66. A fixing rod 69 is provided on the rear inner wall of the hopper 3. The front end of the fixing rod 69 rotates and passes through the transmission cavity 66. A face gear 610 is provided at the front end of the fixing rod 69. A cylindrical gear 68 that meshes with the face gear 610 is provided at the upper end of the transmission shaft 67.

[0035] When the retractable baffle 6 rotates outward from the hopper 3, the cylindrical gear 68 rotates synchronously, while the fixed rod 69 remains stationary. The cylindrical gear 68 rotates along the surface of the face gear 610. Under the tooth transmission of the face gear 610, the cylindrical gear 68 rotates synchronously, and the transmission shaft 67 synchronously drives the screw 64 to rotate, thereby causing the shrink plate 62 to retract into the shrink groove 63.

[0036] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A high-viscoelastic asphalt mixture paving device for ultra-thin overlay construction, comprising a machine body (1), a conveyor chain (2) for conveying asphalt mixture is provided on the machine body (1), two hoppers (3) are provided on the machine body (1), the two hoppers (3) are located on both sides of the conveyor chain (2), and a tilting drive element (4) is provided between the left and right side surfaces of the machine body (1) and the lower surface of the hoppers (3), characterized in that: The hopper (3) has a retractable baffle (6) inside on the side near the conveyor chain (2). Rotary seats (5) are provided on both the front and rear sides of the hopper (3). The rotating seats (5) are mounted on the machine body (1). A movable shaft (8) is provided on the surface of the hopper (3) near the rotating seat (5). The other end of the movable shaft (8) rotates through the rotating seat (5). A transmission assembly (7) for controlling the rotation of the retractable baffle (6) is provided on the front surface of the hopper (3).

2. The high viscoelastic asphalt mixture paving equipment for ultra-thin overlay construction according to claim 1, characterized in that: The transmission assembly (7) includes a connecting shaft (71), which is located on the front side of the hopper (3). The rear end of the connecting shaft (71) rotates through the feed hopper (3) and is connected to the retractable baffle (6). An external gear (72) is sleeved on the front end of the connecting shaft (71).

3. The high-viscoelastic asphalt mixture paving equipment for ultra-thin overlay construction according to claim 2, characterized in that: The outer surface of the external gear (72) is meshed with a rack (74), and a contact rod (78) is provided on the lower surface of the rack (74). A sliding seat (73) is provided on the front surface of the hopper (3). The sliding seat (73) is slidably sleeved on the outer surface of the contact rod (78). A sleeve plate (75) is sleeved on the outer surface of the lower end of the contact rod (78). A spring (76) is movably sleeved on the outer surface of the contact rod (78) between the upper surface of the sleeve plate (75) and the lower surface of the sliding seat (73).

4. The high viscoelastic asphalt mixture paving equipment for ultra-thin overlay construction according to claim 3, characterized in that: The outer surface of the front end of the movable shaft (8) is fitted with a cam (77), and the lower end of the contact rod (78) is hemispherical. The lower end of the contact rod (78) contacts the outer surface of the cam (77) and slides.

5. The high viscoelastic asphalt mixture paving equipment for ultra-thin overlay construction according to claim 4, characterized in that: The retractable baffle (6) includes a top plate (61), the rear end of the connecting shaft (71) is connected to the front surface of the top plate (61), a retractable plate (62) is provided on the lower side of the top plate (61), a retractable groove (63) is provided on the lower surface of the top plate (61), the upper side of the retractable plate (62) extends into the retractable groove (63) and slides in the retractable groove (63), a screw (64) is rotatably connected to the top wall of the retractable groove (63), and a threaded groove (65) is provided on the upper surface of the retractable plate (62) and threaded on the outer surface of the screw (64).

6. The high-viscoelastic asphalt mixture paving equipment for ultra-thin overlay construction according to claim 5, characterized in that: The top plate (61) has a transmission cavity (66) inside, and a fixing rod (69) is provided on the rear inner wall of the hopper (3). The front end of the fixing rod (69) rotates through the transmission cavity (66), and a face gear (610) is provided at the front end of the fixing rod (69).

7. The high viscoelastic asphalt mixture paving equipment for ultra-thin overlay construction according to claim 6, characterized in that: The upper surface of the screw (64) is provided with a drive shaft (67), the upper end of the drive shaft (67) rotates through into the drive cavity (66), and the upper end of the drive shaft (67) is provided with a cylindrical gear (68) that meshes with the face gear (610).

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