Vehicle-mounted automatic screening device for large-diameter stone blocks

The automatic screening device for large-diameter stones using an arched grate mounted on a vehicle enables simultaneous screening during transportation, solving the problems of low construction efficiency and large space occupation in existing technologies, and improving construction progress and filling quality.

CN122126673APending Publication Date: 2026-06-02BEIJING JINGANG ROAD ENGINEERING CONSTRUCTION CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING JINGANG ROAD ENGINEERING CONSTRUCTION CO LTD
Filing Date
2026-03-31
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing technologies make it difficult to control oversized stones in fillers in real time during transportation, resulting in low construction efficiency, large space occupation, and high costs.

Method used

Design a vehicle-mounted arched grate type automatic screening device for large-diameter stones, including a screening mechanism, an adjustment unit and a screen rod unit. Through the cooperation of worm gear transmission and lifting platform, the screening process can be carried out synchronously during the loading process, adapting to different particle sizes and feeding speeds, and preventing material spillage and dust.

Benefits of technology

It improved screening efficiency, simplified construction process, reduced the number and cost of machinery used, ensured that the particle size of filler in the filling area met the requirements, and improved construction progress and efficiency.

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Abstract

This invention provides a vehicle-mounted arched grate-type automatic screening device for large-diameter stones, relating to the technical field of earthmoving loading equipment. It includes a screening mechanism installed in the rear bucket of an earthmoving truck. The screening mechanism comprises adjustment units located on both sides of the bucket and screen rod units connected to them. Each screen rod unit on both sides is movably connected to a lifting platform located in the middle of the bucket. The lifting platform is movably connected to a support frame fixedly installed on the bucket. A tarpaulin box is installed at the top of the support frame, and a tarpaulin is placed inside the tarpaulin box. The advantages of this invention are: it achieves simultaneous screening and particle size control of the fill material during loading, avoiding the problems of large space occupation, complex procedures, and low efficiency caused by setting up independent screening areas or crushing in the filling area in the prior art.
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