A side feeder

Abstract

The application provides a side feeding machine, which comprises a rack, a hanging mechanism, a spiral feeder and a heating mechanism. Gas is delivered to a gas manifold by a gas supply device and is sprayed from a plurality of ignition nozzles to form a continuous linear fire zone at the bottom of a groove along the length direction of the groove, thereby providing the groove with a uniform heat flux density along the length direction. The spiral feeder is driven by a transmission assembly to rotate the gas manifold to reciprocate, and the reciprocating movement of the gas manifold provides the groove with a uniform heat flux density along the circumferential direction. The uniform heat flux density along the length and circumferential direction of the groove improves the uniformity of the groove heating, avoids local overheating which may cause aging of asphalt and insufficient heating which may cause condensation of the mixture, and improves the construction quality.

Description

Technical Field

[0001] This invention relates to the field of asphalt paving technology, and more specifically to a side feeder. Background Technology

[0002] Cast-in asphalt mixture construction is a high-standard process for bridge deck paving, and ensuring the high-temperature fluidity of the mixture during construction is a key requirement. In actual construction, pavers can efficiently complete the paving of the main area of ​​the bridge deck, but in the edge areas such as the curbside, around drainage ditches, and at expansion joint interfaces, the space is too narrow to fit the paver's screed, and side feeders are needed to complete the mixture paving operation.

[0003] Temperature is a crucial parameter for cast-in-place asphalt mixtures. Temperature loss leads to decreased fluidity and increased viscosity, increasing construction difficulty and impacting project quality. Traditional side-feeders often maintain a high temperature for the mixture by fixing one or more heating devices around the perimeter of the trough. However, this heating method easily results in uneven temperature distribution within the trough. Localized overheating can cause asphalt aging, while insufficient heating can lead to the mixture cooling and solidifying, thus reducing construction quality. Therefore, to address these technical problems, a new side-feeder is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a side-feeding machine that improves the uniformity of trough heating, avoids localized overheating which may cause asphalt aging, and prevents insufficient heating from causing the mixture to cool and solidify, thereby improving construction quality.

[0005] A side feeder, comprising: frame; A mounting mechanism is provided on the frame, and the frame is connected to the rear of the transport vehicle through the mounting mechanism; A screw feeder is mounted on the frame; and The heating mechanism includes a heat insulation cover, a gas manifold, and a transmission assembly. The heat insulation cover is fitted around the outer periphery of the spiral feeder trough to form a heating chamber. The gas manifold is rotatably disposed within the heating chamber, with one end extending to the outside and communicating with a gas supply device. Multiple sets of ignition nozzles facing the trough are spaced apart along the feeding direction of the spiral feeder around the gas manifold. The transmission assembly connects the gas manifold and the spiral feed rod in the spiral feeder to convert the rotation of the spiral feed rod into the reciprocating oscillation of the gas manifold.

[0006] The beneficial effects of the above-mentioned side feeder are: By supplying gas to the gas manifold through a gas supply device and spraying it out from multiple ignition nozzles, a continuous linear fire band is formed along the length of the tank bottom to heat the tank. This provides a uniform heat flux density along the length of the tank. The rotation of the spiral feed rod drives the gas manifold to oscillate back and forth through the transmission assembly. The oscillation of the gas manifold provides a uniform heat flux density along the circumferential direction of the tank. By providing a uniform heat flux density along the length and circumference of the tank, the heating uniformity of the tank is improved, avoiding local overheating that may cause asphalt aging and underheating that may cause the mixture to cool and solidify, thereby improving the construction quality.

[0007] In one embodiment, multiple sets of self-locking casters are provided on both sides of the frame.

[0008] In one embodiment, the mounting mechanism includes a connecting seat and a connecting rod; two sets of fixed seats are spaced apart on one side of the frame, each set of fixed seats is provided with the connecting seat that rotates around a vertical axis, each set of connecting seats is provided with the connecting rod, and one end of each set of connecting rods is provided with a connecting hole for connecting to the rear of the transport vehicle.

[0009] In one embodiment, both sets of fixed seats are provided with fan-shaped limiting grooves on their periphery, and both sets of connecting seats are provided with limiting blocks, which are slidably disposed in the fan-shaped limiting grooves.

[0010] In one embodiment, one end of each of the two sets of connecting rods is rotatably mounted on the two sets of fixed seats about a horizontal axis.

[0011] In one embodiment, the transmission assembly includes a turntable, a rack, and a gear; the turntable is coaxially mounted on the spiral feed rod, one end of the turntable is coaxially provided with a wavy annular groove, one end of the rack is slidably mounted on the spiral feeder along the radial direction of the turntable and is provided with a guide rod, the guide rod is slidably mounted in the wavy annular groove, the gear is coaxially mounted on the gas manifold, and the other end of the rack meshes with the gear.

[0012] In one embodiment, multiple sets of gas manifolds are spaced apart along the circumference of the spiral feed rod, and the gears are coaxially arranged on each set of gas manifolds. Multiple sets of racks are spaced apart along the circumference of the spiral feed rod, and the guide rods at one end of each set of racks are slidably disposed in the wavy annular groove, while the other end meshes with the gears of each set. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a three-dimensional structural diagram of a side feeder according to an embodiment of the present invention; Figure 2 for Figure 1 The image shown is a cross-sectional view of a screw feeder in a side feeder. Figure 3 for Figure 1 An exploded view of a heating mechanism in a side feeder is shown. Figure 4 for Figure 1 The diagram shown is an exploded view of the hook-up mechanism in a side feeder.

[0015] Figure label: 10. Frame; 101. Casters; 102. Mounting base; 103. Sector-shaped limiting groove; 20. Screw feeder; 201. Screw feed rod; 30. Insulation cover; 301. Gas manifold; 302. Heating chamber; 303. Ignition nozzle; 304. Turntable; 3041. Corrugated annular groove; 305. Rack; 3051. Guide rod; 306. Gear; 40. Connecting seat; 401. Connecting rod; 402. Connecting hole; 403. Limiting block. Detailed Implementation

[0016] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0017] Please see Figures 1 to 3 One embodiment of a side-feeding machine includes a frame 10, a mounting mechanism, a screw feeder 20, and a heating mechanism. The mounting mechanism is mounted on the frame 10, and the frame 10 is connected to the rear of a transport vehicle via the mounting mechanism. The screw feeder 20 is mounted on the frame 10. The heating mechanism includes a heat insulation cover 30, a gas manifold 301, and a transmission assembly. The heat insulation cover 30 is fitted around the outer periphery of the screw feeder 20's trough to form a heating chamber 302. The gas manifold 301 is rotatably disposed within the heating chamber 302, with one end extending to the outside and communicating with a gas supply device. Multiple sets of ignition nozzles 303 facing the trough are spaced along the feeding direction of the screw feeder 20 on the periphery of the gas manifold 301. The transmission assembly connects the gas manifold 301 and the screw feeder 201 in the screw feeder 20, converting the rotation of the screw feeder 201 into the reciprocating oscillation of the gas manifold 301.

[0018] In the above embodiments, gas is supplied to the gas manifold 301 by the gas supply equipment and sprayed out from multiple ignition nozzles 303, forming a continuous linear fire band along the length of the bottom of the tank to heat the tank. This provides the tank with a uniform heat flux density distributed along its length. The rotation of the spiral feed rod 201 drives the gas manifold 301 to oscillate back and forth through the transmission assembly. The oscillation of the gas manifold 301 provides the tank with a uniform heat flux density distributed along its circumferential direction. By providing a uniform heat flux density distributed along the length and circumferential direction of the tank, the heating uniformity of the tank is improved, avoiding local overheating that may cause asphalt aging and insufficient heating that may cause the mixture to cool and solidify, thereby improving the construction quality.

[0019] Please see Figure 1 In one embodiment, multiple sets of self-locking casters 101 are provided on both sides of the frame 10. This allows the device to flexibly turn during traction and follow the transport to complete complex routes, and can also be quickly locked when fixed-point paving is required, ensuring absolute stability of the device during operation and preventing the movement of the device from affecting the paving line.

[0020] Please see Figure 1 and Figure 4 In one embodiment, the mounting mechanism includes a connecting seat 40 and a connecting rod 401. Two sets of fixed seats 102 are spaced apart on one side of the frame 10. Each set of fixed seats 102 is equipped with a connecting seat 40 that rotates around a vertical axis. Each set of connecting seats 40 is equipped with a connecting rod 401. One end of each set of connecting rods 401 has a connecting hole 402 for connecting to the rear of the transport vehicle. Specifically, each set of fixed seats 102 has a fan-shaped limiting groove 103 on its periphery, and each set of connecting seats 40 is equipped with a limiting block 403, which is slidably disposed within the fan-shaped limiting groove 103.

[0021] In the above embodiments, when the two sets of connecting rods 401 are connected to the transport vehicle, the two sets of connecting rods 401 can have limited swing capability in the horizontal plane, thereby compensating for lateral deviation during docking or slight steering during driving.

[0022] Based on the above embodiments, further, one end of each of the two sets of connecting rods 401 is rotatably mounted on the two sets of fixed seats 102 around a horizontal axis.

[0023] In the above embodiments, when the two sets of connecting rods 401 are connected to the transport vehicle, the two sets of connecting rods 401 allow the frame 10 and the transport vehicle to have a certain pitch angle change in the vertical plane to adapt to slope operation; the two sets of connecting rods 401 can perform pitch angle changes and have limited horizontal swing capability, effectively avoiding harmful rigid interference between the device and the transport vehicle, significantly reducing the additional structural stress caused by uneven ground, protecting the hook-up mechanism itself as well as the key structural components of the device and the transport vehicle, and improving the environmental adaptability and reliability of the whole system.

[0024] Please see Figure 2 and Figure 3 In one embodiment, the transmission assembly includes a turntable 304, a rack 305, and a gear 306. The turntable 304 is coaxially mounted on the screw feeder 201, and a wavy annular groove 3041 is coaxially formed at one end of the turntable 304. One end of the rack 305 is radially slidably mounted on the screw feeder 20 along the turntable 304 and is provided with a guide rod 3051, which is slidably mounted in the wavy annular groove 3041. The gear 306 is coaxially mounted on the gas manifold 301, and the other end of the rack 305 meshes with the gear 306.

[0025] In the above embodiment, the rotation of the screw feed rod 201 drives the turntable 304 to rotate. The rotation of the turntable 304, through the engagement of the wave annular groove 3041 and the guide rod 3051, drives the rack 305 to reciprocate. The reciprocating movement of the rack 305 meshes with the gear 306, thereby driving the gear 306 to reciprocate. The reciprocating rotation of the gear 306 drives the gas manifold 301 to oscillate back and forth. Driving the gas manifold 301 to oscillate back and forth is convenient and requires no additional power equipment or operation, thus reducing energy consumption.

[0026] Based on the above embodiments, multiple sets of gas manifolds 301 are arranged at intervals along the circumference of the spiral feed rod 201. Gears 306 are coaxially arranged on each set of gas manifolds 301. Multiple sets of racks 305 are arranged at intervals along the circumference of the spiral feed rod 201. The guide rods 3051 at one end of each set of racks 305 are slidably arranged in the wave-shaped annular groove 3041, and the other end is respectively engaged with multiple sets of gears 306.

[0027] The gas manifold 301 is arranged in multiple sets at intervals along the circumference of the tank, which can further improve the uniform heat flux density distributed along the circumferential direction for the tank.

[0028] The specific implementation method of the above-mentioned side feeder is as follows: Gas is supplied to the gas manifold 301 by the gas supply equipment and sprayed out from multiple ignition nozzles 303, forming a continuous linear fire band along the length of the tank bottom to heat the tank, thereby providing the tank with a uniform heat flux density distributed along its length. Furthermore, during the rotation of the screw feeder 201 to convey the mixture, the rotation of the screw feeder 201 drives the turntable 304 to rotate. The rotation of the turntable 304, through the engagement of the corrugated annular groove 3041 and multiple guide rods 3051, drives multiple sets of racks 305 to reciprocate. The reciprocating movement of multiple sets of racks 305 and their meshing with multiple sets of gears 306 drives the reciprocating rotation of multiple sets of gears 306. The reciprocating rotation of multiple sets of gears 306 drives the reciprocating oscillation of multiple sets of gas manifolds 301. The reciprocating oscillation of multiple sets of gas manifolds 301 can provide a uniform heat flux density distributed along the circumferential direction to the tank. By providing a uniform heat flux density distributed along the length and circumferential direction of the tank, the heating uniformity of the tank is improved, avoiding local overheating that may cause asphalt aging and insufficient heating that may cause the mixture to cool and solidify, thereby improving the construction quality.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A side-feeding machine, characterized in that, include: Rack (10); A mounting mechanism is provided on the frame (10), and the frame (10) is connected to the rear of the transport vehicle through the mounting mechanism; A screw feeder (20) is mounted on the frame (10); and The heating mechanism includes a heat insulation cover (30), a gas manifold (301), and a transmission assembly. The heat insulation cover (30) is fitted around the outer periphery of the groove of the screw feeder (20) to form a heating chamber (302). The gas manifold (301) is rotatably disposed inside the heating chamber (302) and one end extends to the outside and can communicate with the gas supply equipment. Multiple sets of ignition nozzles (303) facing the groove are spaced apart around the periphery of the gas manifold (301) along the feeding direction of the screw feeder (20). The transmission assembly connects the gas manifold (301) and the screw feed rod (201) in the screw feeder (20) to convert the rotation of the screw feed rod (201) into the reciprocating oscillation of the gas manifold (301).

2. A side feeder according to claim 1, characterized in that, Multiple sets of casters (101) with self-locking function are provided on both sides of the frame (10).

3. A side feeder according to claim 1, characterized in that, The mounting mechanism includes a connecting seat (40) and a connecting rod (401); two sets of fixed seats (102) are spaced apart on one side of the frame (10), and the connecting seat (40) is provided on both sets of fixed seats (102) and rotates around the vertical axis. The connecting rod (401) is provided on both sets of connecting seats (40), and a connecting hole (402) for connecting to the rear of the transport vehicle is opened at one end of both sets of connecting rods (401).

4. A side feeder according to claim 3, characterized in that, Both sets of fixed seats (102) are provided with fan-shaped limiting grooves (103) on their periphery, and both sets of connecting seats (40) are provided with limiting blocks (403), which are slidably disposed in the fan-shaped limiting grooves (103).

5. A side feeder according to claim 3, characterized in that, One end of each of the two sets of connecting rods (401) is rotatably mounted on the two sets of fixed seats (102) around a horizontal axis.

6. A side feeder according to claim 1, characterized in that, The transmission assembly includes a turntable (304), a rack (305), and a gear (306); the turntable (304) is coaxially mounted on the screw feeder (201), and one end of the turntable (304) is coaxially provided with a wave-shaped annular groove (3041); one end of the rack (305) is radially slidably mounted on the screw feeder (20) along the turntable (304), and is provided with a guide rod (3051); the guide rod (3051) is slidably mounted in the wave-shaped annular groove (3041); the gear (306) is coaxially mounted on the gas manifold (301), and the other end of the rack (305) meshes with the gear (306).

7. A side feeder according to claim 6, characterized in that, The gas manifold (301) is provided with multiple sets of gears at intervals along the circumference of the spiral feed rod (201). Each set of gas manifolds (301) is coaxially provided with gears (306). The racks (305) are provided with multiple sets of gears at intervals along the circumference of the spiral feed rod (201). The guide rods (3051) at one end of each set of racks (305) are slidably disposed in the wave-shaped annular groove (3041), and the other end is respectively engaged with the gears (306).

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