Double-pipe type broken stone grain screening device for road patching

Abstract

The invention provides a double-pipe type broken stone grain screening device for road patching. The double-pipe type broken stone grain screening device comprises a protective bucket, a bottom support frame, an upper support frame, gripper jaws and screening buckets. The bottom support frame extends upwards vertically and is connected to the inner side of the protective bucket in a rotary manner. The upper support frame is vertically connected with a lifting device. The two sides of the bottom end of the upper support frame each extend downwards vertically, and a screening motor is fixed to the upper support frame. The two gripper jaws are mounted at the two sides of the bottom of the upper support frame correspondingly. Each gripper jaw comprises a connecting rod, a support disc, a sliding disc, clamping rods, support rods and clamping blocks. The two screening buckets are mounted at the two sides of the upper end of the bottom support frame correspondingly. Each screening bucket comprises a bucket body and a bucket cover. According to the double-pipe type broken stone grain screening device, the mode that centrifugal rotation of the screening buckets is combined with rotation of the upper support frame at the top is adopted, so that broken stone grain screening is conducted; screening quality is guaranteed while the screening amount is increased; meanwhile, screening efficiency is high, screening time is effectively saved, and cost is made up; and the double-pipe type broken stone grain screening device is novel in structure, convenient and fast to produce and manufacture and suitable for being applied and popularized.

Description

technical field [0001] The invention belongs to the field of road construction equipment, and in particular relates to a double-pipe gravel screening device for road filling. Background technique [0002] With the development of social economy, in order to facilitate traffic and transportation, more and more highways are laid and the scope is wider and wider. In order to reduce costs and man-hours, the existing expressways can be reconstructed on the existing lines when laying, but the road surface of the existing lines is uneven and needs to be filled again. In order to save costs and ensure the filling quality, crushed Stones are filled. However, the crushed stones are of different sizes, so they need to be screened first, which is cumbersome and time-consuming. [0003] Therefore, in order to solve the above problems, it is a difficult problem urgently needed by those skilled in the art to develop a device capable of quickly screening gravel particles. Contents of the...

AI Technical Summary

Problems solved by technology

However, the crushed stones are of different sizes, so they need to be screened first, which is cumbersome and time-consuming

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