Swinging progressive scraper unloading device and dumper

Abstract

According to the swing progressive scraper discharging device and the dumper, the discharging device can drive a swing type scraping mechanism between chains on the two sides to move back and forth, in the backward moving process, a one-way bearing reversely locks a swing rod of a scraper, the scraping function of the scraper is achieved, and in the forward returning process of the scraper, the swing rod of the scraper is locked through a one-way bearing. The one-way bearing rotates to unlock the scraping plate and return along the upper part of the material, then the double-shaft output gear motor drives the scraping plate to swing downwards by a certain angle to press the lower end of the scraping plate into the material, and the scraping plate continues to move backwards for discharging; according to the device, layer-by-layer discharging can be conducted from top to bottom through the swing amplitude of the scraper blade, the discharging amount of each time can be adjusted according to the downward swing amplitude of the scraper blade, and free control over the discharging amount and the discharging speed is achieved; and the dumper provided with the unloading device can scrape out the materials from the tail door of the square hopper layer by layer from top to bottom, so that the unloading speed of the square hopper is matched with the paving speed of the paver, and the paver does not need to run in an overload manner.

Description

technical field [0001] The invention relates to the technical field of granular materials or ready-mixed materials, in particular to a swing progressive scraper unloading device and a dump truck. Background technique [0002] In the process of road construction, the asphalt pavement is paved by transporting the mixed asphalt materials from the mixing station to the construction site through several dump trucks, and then dumping the asphalt materials from the dump trucks into the paver. Pave the roadbed. However, after the body of the dump truck is tilted and raised, the internal material slides down from the tailgate along the bottom plate of the body, and the speed control of material self-unloading is relatively difficult, and the problem of uneven feeding of the paver often occurs. Therefore, the paver usually adopts the overload feeding method to avoid the idling of the paver material, but the overload feeding will cause the problem of exceeding the bearing limit of the...

AI Technical Summary

Problems solved by technology

However, after the body of the dump truck is tilted up, the internal materials slide out from the tailgate along the bottom plate of the body. It is difficult to control the speed of material dumping, and the problem of uneven loading of the paver often occurs. Therefore, the paver usually adopts the overload loading method to avoid the idling of the paver material, but the overload loading will cause the problem of exceeding the load limit of the paver hopper, which will affect the service life of the paver

In addition, when the dump truck is unloading, the body needs to be raised to a certain height. In some old neighborhoods, the road surface is relatively narrow, and the branches of trees on both sides of the road basically close the upper space of the road surface. In some areas, there are utility poles and cables occupying the road. The upper space of the bridge and culvert or the lack of upper space in the tunnel can affect the lifting and unloading of the bucket of the dump truck; now the commonly used method is that the dump truck arrives at the site and uses a trolley for transfer. Not only will it increase the construction process, but it will also cause the temperature of the material to drop too fast, which will easily generate waste or affect the paving amount of the road surface

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