An electromechanical quadrangular truss-shaped hopper used in a concrete mixing station

Abstract

The invention provides an electric mechanical quadrangular frustum pyramid shaped hopper used in a concrete mixing plant. The electric mechanical quadrangular frustum pyramid shaped hopper comprises a body, trapezoidal seesaws, breakers, arc-shaped scrapers and variable-frequency motors, wherein the trapezoidal seesaws are connected on the inner walls of the body by supports; the breakers are connected on the body by bearings; the arc-shaped scrapers are connected with the four corners of the body by guide cylinders and are connected with micro axles at the lower end corners of the trapezoidal seesaws by first drive rods; the variable-frequency motors are connected on the outer walls of the body by bolts, are connected with small axles on the seesaws by second drive rods and are meshed with gears at the axle ends of the breakers by sector gears. The electric mechanical quadrangular frustum pyramid shaped hopper has a novel structure, is smooth in feeding, is free from blockage, has stable properties and strong practicability and is firm and durable.

Description

technical field [0001] The invention relates to the technical field of construction equipment, and is particularly suitable for a quadrangular table-shaped hopper in a concrete mixing automatic control feeding equipment. Background technique [0002] At present, among the automatic control feeding equipment used in concrete batching plants, the four-sided table hopper has two types of vibrators and screw pushers, both of which are to make the medium sand in the four-sided table-shaped hopper automatically fall to the conveyor belt or into the mixer; The four-sided table-shaped hopper with vibrator and screw propeller is suitable for medium sand with uniform sand grain, moisture content below 8%, and good fluidity, while for medium sand with moisture content above 8%, or with crushed small sand. It is difficult to apply the medium sand of the frozen block, which often causes the medium sand in the quadrangular trapezoidal hopper to be blocked, cannot fall, and does not meet t...

AI Technical Summary

Problems solved by technology

[0002] Among the automatic control feeding equipment currently used in concrete mixing plants, there are two types of square-shaped hoppers equipped with vibrators and screw propellers, both of which are used to make the medium sand in the square-shaped hopper automatically fall to the conveyor belt or fall into the mixer; The quadrangular truss-shaped hopper equipped with a vibrator and a screw propeller is suitable for medium sand with uniform sand, moisture content below 8%, and good fluidity, and for medium sand with a moisture content above 8%, or with broken small It is difficult to apply the medium sand of the frozen block, which often causes the medium sand in the square-shaped hopper to block and cannot fall, and does not meet the requirements of the mixed concrete specification. The medium sand of the broken small frozen block is easy to cause pouring Honeycombs appear in the concrete, which is also one of the causes of serious quality accidents in pouring concrete. When the loader pours the medium sand into the square-shaped hopper from top to bottom, the impact force is large, which increases the medium-sand in the square-shaped hopper. The bulk density, and the medium sand with high humidity has high bonding strength and strong support force. In addition, under the vibration of the vibrator, the medium sand gathers toward the lower mouth along the four directions of the slope wall of the square-shaped hopper. However, the distance between the conveyor belt and the lower mouth of the square-shaped hopper is small, and when the conveyor belt is not conveying, the medium sand is loaded more densely and cannot flow, especially the medium sand at the four corners of the square-shaped hopper is more difficult to slide down and loses fluidity. It cannot fall automatically; when the screw propeller pushes the medium sand in the quadrangular platform-shaped hopper, it forms a lower sky and upper canopy, and it cannot make the medium sand fall automatically, so that the automatic feeding equipment loses the function of automatic control of batching and feeding, and workers are required. Use a shovel to dig out the medium sand, and then put the medium sand into the square-shaped hopper one by one after it is unblocked. This wastes a lot of time, labor and machinery costs, and delays the construction period. Often cause frostbite quality accidents in concrete engineering and increase engineering costs

Images