Crushing mechanism in concrete crushing machine

Abstract

The invention provides a crushing mechanism in a concrete crushing machine, and belongs to the technical field of buildings. The technical problems that the existing concrete crushing effect is poor,and the existing crushing efficiency is low are solved. According to the crushing mechanism in the concrete crushing machine, the crushing machine comprises a material return box, a crushing box and afeeding hopper, the crushing box is fixed to the material return box, and the feeding hopper is fixed to the crushing box; and the crushing mechanism comprises a first crushing roll and a second crushing roll, the first crushing roll and the second crushing roll are rotatably arranged in the crushing box and adjacently arranged, a plurality of first crushing rings are fixed to the first crushingroll, a plurality of second crushing rings are fixed to the second crushing roll, a first gear and a second gear are coaxially fixed to the first crushing roll, a third gear is coaxially fixed to thesecond crushing roll, the first gear and the third gear are sleeved with a chain, and the second gear is connected with a driving assembly used for driving the second gear to rotate. The crushing mechanism in the concrete crushing machine has the advantages that the concrete crushing effect is good, and the crushing efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of construction, in particular to a pulverizing mechanism in a concrete pulverizer. Background technique [0002] Compared with concrete, the tensile strength of steel bars is very high, generally above 200MPa. Therefore, people usually add reinforcing materials such as steel bars to concrete to work with it. The steel bars bear the tensile force, and the concrete bears the compressive stress. [0003] Secondly, there is a good bond between the steel bar and the concrete. Sometimes the surface of the steel bar is also processed into ribs with intervals (called deformed steel bar) to improve the mechanical engagement between the concrete and the steel bar. However, this is still not enough to transmit the steel bar and the steel bar. When the tension between the concrete, the end of the steel bar is usually bent up with a 180-degree hook. [0004] Although the firmness of reinforced concrete has been greatly...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of poor concrete crushing effect and slow crushing efficienc

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