Dual-sealing discharge door mechanism of pavement maintenance vehicle

Abstract

The invention relates to a dual-sealing discharge door mechanism of a pavement maintenance vehicle. The dual-sealing discharge door mechanism comprises a discharge end support seat, a spiral material door, a support seat material door, an upper cover plate, executing elements and connecting brackets, wherein the upper part and the lower part of the discharge end support seat both adopt an open type square box body structure, and the discharge end support seat is mounted on the warehouse wall of a heat insulation material warehouse of a road surface maintenance vehicle; a discharge opening is formed in one surface, connected with the warehouse wall of the heat insulation material warehouse, of the discharge end support seat, and a spiral conveyor in the heat insulation material warehouse penetrates through the discharge opening to be connected to the inner part of the discharge end support seat in a sleeving manner; and the spiral conveyor is supported and mounted on the rear end surface of the discharge opening support seat, a side sliding groove is additionally formed in the lower part of the left side and the right side of the discharge end support seat, and a rear sliding groove is additionally formed in the lower part of the rear end surface, opposite to the discharge opening, of the discharge end support seat. According to the dual-sealing discharge door mechanism disclosed by the invention, through the dual-sealing effect of the spiral material door and the support seat material door, the heat of a hot-mixed asphalt mixture in the heat insulation material warehouse is effectively prevented from running off outwards through the discharge opening, the sealing is tight, the heat insulation effect is good, and the dual-sealing discharge door mechanism is convenient to operate and easy to examine and repair.

Description

technical field [0001] The invention relates to a double-seal discharge door mechanism of a road maintenance vehicle, and belongs to the technical field of road maintenance machinery and equipment. Background technique [0002] When repairing asphalt pavement potholes, road maintenance vehicles need to transport the hot mix asphalt mixture (HMA) produced by the mixing station to the construction section. After ℃, the bonding performance of asphalt becomes poor and cannot be used for construction. Therefore, the general solution is to equip the road maintenance vehicle with an insulation silo, and install a screw conveyor in the insulation silo. When the road maintenance vehicle arrives at the construction section, start The screw conveyor is running, and the hot-mix asphalt mixture in the warehouse is discharged into the pit. Existing road surface maintenance vehicles generally only have a discharge port at the end of the spiral groove of the screw conveyor in the thermal i...

AI Technical Summary

Problems solved by technology

Because the arc-shaped insert plate cannot be well sealed, the heat is lost to the outside during transportation. It often happens that after reaching the construction section, the temperature of the hot-mix asphalt mixture has cooled to below 120°C, and even freezes at the outlet. Blocks lead to the failure of unloading, affecting the quality of pit repair and construction progress

In addition, because the arc-shaped insert needs to be manually extracted and inserted, it is time-consuming and labor-intensive, especially after the asphalt is adhered, it is even more difficult to open

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