Reciprocating type sand screening machine

Abstract

The invention discloses a reciprocating type sand screening machine. The reciprocating type sand screening machine comprises a motor, a sand screen, a rotary table driven by the motor, a connecting plate and guide rails in sliding fit with the connecting plate. A round pin is arranged at the eccentric position of the end face of the rotary table. One end of the connecting plate is connected with the sand screen, and a long concave groove is formed in the other end of the connecting plate in the direction perpendicular to the moving direction of the connecting plate. The round pin in the groove is matched with the connecting plate. The reciprocating type sand screening machine is compact in structure and can bear more sand at a time.

Description

technical field [0001] The invention relates to a reciprocating sand screening machine. Background technique [0002] Sand is an important raw material for construction. The sand is salvaged from the river and needs to be screened to separate the sand of different thicknesses. The traditional manual sand screen is to tilt the sand net on the ground, and then pour the sand on the bottom of the sand net. Above, when the sand slides down in the sand net, the sand smaller than the diameter of the gauze passes through the sand net, and the sand larger than the diameter of the sand net is filtered and slides down to the bottom of the sand net. With the step-by-step expansion of infrastructure construction, manual sand screening cannot meet the building's demand for sand screening efficiency, and tools that can replace manual sand screening are needed. Existing sand screening tools are mainly divided into two types according to the movement mode: vibration type and reciprocating t...

AI Technical Summary

Problems solved by technology

The vibrating type vibrates the sand net through the vibrating machine. This kind of sand screening method has great limitations. Because the vibrating type makes the sand net move up and down, the movement direction of the sand net is exactly the direction of gravity of the sand, and the vibration direction of the vibrator The efficiency is not high; the reciprocating type is to reciprocate the sand net along the surface of the sand net. Since the movement direction of the sand net is different from the gravity direction of the sand, a smaller vibrator can drive a large amount of sand for screening

The existing reciprocating sand screening machine, such as the sand screening machine with the publication number 202137116U, uses a belt to drive the turntable and the connecting rod to make the sand net reciprocate. This method has two major disadvantages. First, due to the material of the belt, The sand that can be driven by its work is small, which cannot meet the needs of large-scale sand screening. If there is too much sand at one time, it is easy to cause damage to the belt; secondly, the structure is loose, and there are too many transition devices from the motor to the sand net. easily damaged in

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