Asphalt mixture transfer and metering device for sloping paving tractor

Abstract

This invention discloses an asphalt mixture transfer and metering device for a traction trolley used for slope paving. It includes an upper platform on the trolley, with a cantilever beam load cell fixedly installed at the upper end of the platform. A supporting frame is fixedly installed on the cantilever beam load cell, and a transfer hopper is fixedly installed on the supporting frame. A discharge port is provided through the lower end of the transfer hopper, and a support plate is fixedly connected to the lower end of the hopper. A connecting plate is rotatably connected to the support plate via a rotating shaft, and a sealing plate is fixedly connected to the lower end of the connecting plate. This device, through structural optimization and functional integration, comprehensively improves construction efficiency, paving quality, and control precision. The transfer hopper buffers materials, eliminating "waiting for materials and stopping the machine," and reducing scheduling difficulty. Dual temperature control maintains the optimal temperature of the mixture, avoiding construction defects. The cantilever beam load cell can measure and precisely discharge materials in real time, controlling the amount used as needed to ensure uniform paving and accurate material usage, meeting the construction standards for high-grade asphalt pavement.

Description

Technical Field

[0001] This invention relates to the technical field of asphalt panel construction equipment for pumped storage power stations, specifically an asphalt mixture transfer and metering device for a traction trolley used for slope paving. Background Technology

[0002] In the construction of asphalt paving slopes for pumped storage power stations, the continuity of asphalt mixture supply, temperature stability, and metering accuracy directly affect construction efficiency and paving quality.

[0003] Existing sloping paving trolleys generally adopt the traditional direct material supply mode, which lacks an effective material buffer structure. When the transportation vehicles are not well connected or the unloading rhythm is not matched, the phenomenon of "waiting for material and stopping the machine" is very likely to occur. This not only leads to the interruption of paving operations and reduces construction efficiency, but also increases the difficulty of organization and management in complex construction scenarios due to the extremely high time coordination requirements of on-site transportation scheduling. At the same time, the traditional material supply device does not have a complete temperature control mechanism. The asphalt mixture loses heat quickly while waiting for paving, which can easily lead to low temperature problems, resulting in quality defects such as difficulty in compaction, segregation, and insufficient bond strength. It is difficult to meet the construction standards of high-grade asphalt pavement. Therefore, it is necessary to propose an asphalt mixture transfer and metering device for sloping paving traction trolleys. Summary of the Invention

[0004] The purpose of this invention is to provide an asphalt mixture transfer and metering device for traction trolleys used for slope paving, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an asphalt mixture transfer and metering device for a traction trolley used for slope paving, comprising a platform on the trolley, a cantilever beam type weighing sensor fixedly installed at the upper end of the platform, a supporting keel fixedly installed on the cantilever beam type weighing sensor, a transfer hopper fixedly installed on the supporting keel, a discharge port extending through the lower end of the transfer hopper, a support plate fixedly connected to the lower end of the transfer hopper, a connecting plate rotatably connected to the support plate via a rotating shaft, a sealing plate fixedly connected to the lower end of the connecting plate, a drive cylinder fixedly installed on the outer wall of the transfer hopper, a piston rod movably connected to the output end of the drive cylinder, the piston rod and the sealing plate rotatably connected via a rotating shaft, and a cast aluminum electric heating plate fixedly installed on the transfer hopper.

[0006] Preferably, the lower end of the transfer hopper is conical, and the conical inner cavity of the transfer hopper is configured as a buffer hopper.

[0007] Preferably, a rock wool insulation layer is fixedly connected to the inner wall of the buffer silo.

[0008] Preferably, the tail end of the drive cylinder is rotatably connected to a double-ear seat via a rotating shaft, and the drive cylinder is fixedly installed on the outer wall of the transfer hopper via the double-ear seat.

[0009] Preferably, the upper end of the sealing plate is arc-shaped, and the outer wall of the discharge port is arc-shaped, and the upper surface of the sealing plate overlaps with the outer wall of the discharge port.

[0010] Compared with existing technologies, the beneficial effects of this invention are as follows: through core structural optimization and functional integration, it achieves a comprehensive improvement in construction efficiency, paving quality, and control precision; the transfer silo forms a material buffer, resolves the time difference in transportation connections, eliminates "waiting for materials and stopping the machine", improves continuous operation capability, and reduces the difficulty of on-site scheduling; the rock wool insulation layer and the cast aluminum electric heating plate provide dual temperature control to maintain the optimal construction temperature of the mixture and avoid defects such as compaction difficulties and segregation; the cantilever beam weighing sensor enables real-time metering and quantitative unloading, which can accurately control the amount of material used, ensuring uniform paving thickness and accurate material use, and fully meeting the construction standards of high-grade asphalt pavement. Attached Figure Description

[0011] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a side view of the structure of the present invention.

[0012] In the diagram: 1. Platform on the trolley; 2. Cantilever beam load cell; 3. Support keel; 4. Transfer hopper; 5. Discharge port; 6. Support plate; 7. Connecting plate; 8. Sealing plate; 9. Drive cylinder; 10. Piston rod; 11. Cast aluminum electric heating plate; 12. Rock wool insulation layer. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] like Figures 1-2 As shown, the present invention provides the following technical solution: Example 1: A metering device for asphalt mixture transfer on a tractor for sloping paving includes a platform 1 on the tractor, a cantilever beam load cell 2 fixedly installed on the upper end of the platform 1, a support keel 3 fixedly installed on the cantilever beam load cell 2, a transfer hopper 4 fixedly installed on the support keel 3, a discharge port 5 extending through the lower end of the transfer hopper 4, a support plate 6 fixedly connected to the lower end of the transfer hopper 4, a connecting plate 7 rotatably connected to the support plate 6 via a rotating shaft, a sealing plate 8 fixedly connected to the lower end of the connecting plate 7, a drive cylinder 9 fixedly installed on the outer wall of the transfer hopper 4, a piston rod 10 movably connected to the output end of the drive cylinder 9, the piston rod 10 and the sealing plate 8 rotatably connected via a rotating shaft, a cast aluminum electric heating plate 11 fixedly installed on the transfer hopper 4, a temperature sensor installed inside the transfer hopper 4, and the cast aluminum electric heating plate 11, the temperature sensor, and the cantilever beam load cell 2 are all connected to the control system signal. When using it, the following steps are included: First, fix the platform 1 on the trolley to the preset installation area of ​​the sloping paving traction trolley, ensuring that the platform's levelness error is ≤±2mm. Then, rigidly connect it to the trolley body with high-strength bolts to ensure load-bearing stability. Next, calibrate the cantilever beam load cell 2 to complete the installation of the equipment. The second step is that the transport vehicle delivers the asphalt mixture to the platform 1 on the trolley and unloads it into the transfer hopper 4. The mixture slides down the inner wall of the hopper into the lower conical buffer silo. The rock wool insulation layer 12 reduces heat loss, and the cast aluminum electric heating plate 11 continuously maintains the material temperature. The third step is that the transport vehicle arrives at the side of the platform 1 on the trolley and slowly unloads the material into the transfer hopper 4. The asphalt mixture slides down the inner wall of the hopper into the conical buffer silo. The silo is designed to have a capacity of 8 tons and can store 2-3 truckloads of mixture, effectively buffering the time difference between transport vehicle connections. The cantilever beam weighing sensor 2 collects the total weight of the transfer hopper 4 and the mixture in real time. The system automatically deducts the weight of the hopper (preset input), calculates the actual amount of mixture, and displays it in real time. When the amount reaches 6 tons (75% of the hopper volume), the system issues a "full hopper warning" and the transport vehicle stops unloading. When the amount drops to 1.5 tons (minimum safe amount), the system issues a "replenishment alarm" to remind the dispatcher to send the next transport vehicle in time, ensuring that there is always material when the feeding trolley arrives at the loading position, thus completely avoiding paving interruptions caused by poor connection of transport vehicles in the traditional material supply mode. Step 4: When the feeding trolley of the ramp paving trolley moves to below the discharge port 5, the drive cylinder 9 is activated. After receiving the command, the piston rod 10 of the drive cylinder 9 slowly extends and pushes the sealing plate 8 to rotate downward around the hinge point, opening the discharge port 5. The mixture falls into the hopper of the feeding trolley under the action of gravity. During the unloading process, the cantilever beam weighing sensor 2 monitors the weight change in real time and accurately counts the unloading amount. During the unloading process, the cantilever beam load cell 2 monitors the weight change in real time and accurately controls the unloading amount according to the set value - if one ton is required, one ton is accurately released, and if two tons are required, two tons are accurately released; when the unloading weight reaches the set value (such as 1 ton), the drive cylinder 9 is stopped and the piston rod 10 is driven to retract, and the sealing plate 8 rotates in the opposite direction to close the discharge port 5, thus completing a single unloading.

[0015] Example 2: The technical solutions in this example that differ from Example 1 include: The lower end of the transfer hopper 4 is cone-shaped, and the cone-shaped inner cavity of the transfer hopper 4 is set as a buffer silo. The asphalt mixture can be stored in the buffer silo, and the cone-shaped buffer silo facilitates the flow and discharge of the asphalt mixture. A rock wool insulation layer 12 is fixedly connected to the inner wall of the buffer silo, and the rock wool insulation layer 12 is used for heat insulation, which facilitates the heat preservation of the asphalt mixture.

[0016] The tail end of the drive cylinder 9 is rotatably connected to a double-ear seat via a rotating shaft. The drive cylinder 9 is fixedly installed on the outer wall of the transfer hopper 4 via the double-ear seat. The upper end of the sealing plate 8 is arc-shaped, and the outer wall of the discharge port 5 is also arc-shaped. The upper surface of the sealing plate 8 overlaps with the outer wall of the discharge port 5, so that the drive cylinder 9 drives the piston rod 10 to slowly extend or retract, pushing the sealing plate 8 to rotate around the hinge point, thereby controlling the opening and discharge of the discharge port 5.

[0017] 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 mixture transfer and metering device for a traction trolley used for slope paving, comprising a platform on the trolley (1), characterized in that, A cantilever beam load cell (2) is fixedly installed on the upper end of the platform (1) of the trolley. A support keel (3) is fixedly installed on the cantilever beam load cell (2). A transfer hopper (4) is fixedly installed on the support keel (3). A discharge port (5) is opened through the lower end of the transfer hopper (4). A support plate (6) is fixedly connected to the lower end of the transfer hopper (4). A connecting plate (7) is rotatably connected to the support plate (6) via a rotating shaft. A sealing plate (8) is fixedly connected to the lower end of the connecting plate (7). A drive cylinder (9) is fixedly installed on the outer wall of the transfer hopper (4). A piston rod (10) is movably connected to the output end of the drive cylinder (9). The piston rod (10) and the sealing plate (8) are rotatably connected via a rotating shaft. A cast aluminum electric heating plate (11) is fixedly installed on the transfer hopper (4).

2. The asphalt mixture transfer and metering device for the traction trolley in slope paving according to claim 1, characterized in that: The lower end of the transfer hopper (4) is cone-shaped, and the cone-shaped inner cavity of the transfer hopper (4) is configured as a buffer hopper.

3. The asphalt mixture transfer and metering device for the traction trolley on a slope paving site according to claim 2, characterized in that: A rock wool insulation layer (12) is fixedly connected to the inner wall of the buffer silo.

4. The asphalt mixture transfer and metering device for the traction trolley in slope paving according to claim 1, characterized in that: The tail end of the drive cylinder (9) is rotatably connected to a double-ear seat via a rotating shaft, and the drive cylinder (9) is fixedly installed on the outer side wall of the transfer hopper (4) via the double-ear seat.

5. The asphalt mixture transfer and metering device for the traction trolley in slope paving according to claim 1, characterized in that: The upper end of the sealing plate (8) is arc-shaped, and the outer wall of the discharge port (5) is arc-shaped, and the upper surface of the sealing plate (8) overlaps with the outer wall of the discharge port (5).

Images