Sand screening device for construction

Abstract

The invention discloses a sand screening device for construction, and belongs to the field of architectural engineering. The sand screening device for construction comprises a screening box and a vibrating screen plate, wherein the drive end of a motor is connected with a third rotary shaft; one end, away from the inner side wall of a drive cavity, of a fourth rotary shaft passes through a partition, extends into a screening cavity, and the extending end is connected with a dispersing assembly; one end, away from the third rotary shaft, of a first linking assembly is connected to one end, inside a drive shaft, of a second rotary shaft; one end, away from a rotary rod, of a transmission assembly is connected to the rod wall, inside the drive cavity, of the fourth rotary shaft; and one end,away from a rotary rod, of a reciprocating mechanism is connected to the side wall of the vibrating screen plate. The motor works to drive a first pressure roller and a second pressure roller for pressing sand through the first linking assembly, the dispersing assembly disperses pressed sand onto the vibrating screen plate, and the reciprocating mechanism drives the vibrating screen plate to shakeback and forth to perform sand screening, so that sand screening speed is quickened, and working efficiency of the device is improved.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a sand screening device for construction. Background technique [0002] Construction engineering refers to engineering entities formed through the construction of various housing buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. Housing construction refers to roofs, beams, walls, foundations, It is a project that forms an internal space and meets the needs of people's production, living, learning, and public activities. Sand screening machine, also known as dry land sand screening ship, sand and gravel separator, is a sand and gravel separation equipment suitable for rivers, reservoirs, and coal yards. It consists of the hull, Composed of frame, reducer, conveyor belt, rotary screen, engine or motor, it is simple in structure, economical and applicable, and easy to operate. It is divided into drum sand sc...

AI Technical Summary

Problems solved by technology

[0003] The retrieval authorization announcement number is CN104438066B discloses a kind of building sand screening machine, comprises frame, and the top side of described frame is arranged with pipe cover, and disc spring is arranged in described pipe cover, and the other side of described frame There is a bracket on the side, and the No. 1 motor is arranged on the bracket. The motor shaft of the No. 1 motor is provided with an eccentric wheel. The top of the disc spring and the eccentric wheel is provided with a No. 1 screen. A crossbeam, the middle position of the crossbeam is vertically provided with a through hole, the through hole is provided with a bearing, the bearing is provided with a rotating shaft, the top of the rotating shaft is provided with a No. 2 screen, and the bottom of the rotating shaft It is connected to the output end of the No. 2 motor. Through the setting of the No. 1 sieve and the No. 2 sieve, the thickness of the sieved sand is more uniform. Although this patent can sieve the sand evenly, there are still defects. Put it directly into the device for screening. If the sand is wet and agglomerated, the screening will be blocked, resulting in poor screening efficiency.

[0004] The retrieval authorization announcement number is CN104984895B, which discloses a sand screening device capable of secondary screening. The middle part of the longitudinal beam of the L-shaped frame body is movably connected to the sand screening unit, and the sand screening unit is composed of a sliding sleeve set on the longitudinal beam of the L-shaped frame body and can rotate along its axial direction, an annular bracket arranged on the sliding sleeve, a plug-in The sand screening cylinder installed in the ring bracket, the sand inlet provided on the upper surface of the sand screening cylinder, a pair of arc-shaped sand outlets provided on the lower surface of the sand screening cylinder, the sand brushing mechanism and the buckle arranged in the sand screening cylinder The primary screen connected to the opening of the upper end of the sand screening cylinder and the secondary screen arranged at the annular sand outlet on the lower surface of the sand screening cylinder are jointly constituted. The other end of the upper surface of the base is provided with a conveyor belt, and the upper end of the conveyor belt is located Just above the funnel, there is a control panel on the longitudinal beam of the L-shaped frame body. Although this patent can sieve sand twice to improve the sand sieving efficiency, the sand is directly put into the device for screening. If the sand is wet and agglomerated, the screening Blocked, resulting in poor screening efficiency

[0005] The existing sand sieving device is directly put in the sand, because the sand is often wet and clumped together, if it is directly put in for screening, the sand may be piled up and distributed unevenly, so that the vibrating sieve plate is not screened properly. Thoroughly, the screening efficiency is not high, in order to solve the above problems, we propose a sand screening device for construction

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