Vibration screening device for prefabricated slab concrete in building construction

Abstract

The invention discloses a building construction prefabricated plate concrete vibrating screening device which enables connecting shafts of the two sides to rotate continuously by a certain angle through eccentricity of a driving shaft and simultaneously conducts vibration screening on two materials. The building construction prefabricated plate concrete vibrating screening device is characterizedin that one ends of four hydraulic dampers are arranged on a mounting plate at equal angles, mounting sleeves are arranged between the hydraulic dampers and the mounting plate, and the mounting plateis of an annular structure; a plurality of mounting holes are formed in the mounting plate at equal intervals, a supporting frame is arranged on the inner side of the mounting plate, and a circular hole is formed in the supporting frame; the circular hole and the mounting plate are eccentric, the eccentric distance is smaller than the radius of the circular hole, and the driving shaft penetrates through the supporting frame through a bearing; the driving shaft is made of a polystyrene material, one end of the driving shaft is provided with a strip-shaped boss, and the strip-shaped boss is formed by embedding metal blocks; and connecting blocks are arranged at the other ends of the hydraulic dampers corresponding to ball hinges, and a transmission shaft is perpendicularly arranged on the connecting blocks and penetrates through the connecting blocks.

Description

technical field [0001] The invention relates to a vibration screening device for prefabricated slab concrete in building construction, which relates to a device for performing double-material simultaneous vibration screening on precast concrete raw materials during building construction, and belongs to the field of building construction. In particular, it relates to a device which, through the eccentricity of the driving shaft, makes the connecting shafts on both sides continuously rotate at a certain angle, and vibrates and screens two kinds of materials at the same time. Background technique [0002] At present, during building construction, it is often necessary to prefabricate some concrete support structures. During prefabrication, sand, gravel and aggregates are graded and screened, sorted in turn and prepared concrete slurry by agitator. The existing vibrating screen is to separate the sand and gravel by placing the material on the screen frame, driving the screen fra...

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Problems solved by technology

[0002] At present, during building construction, it is often necessary to prefabricate some concrete support structures. During prefabrication, sand, gravel and aggregates are graded and screened, sorted in turn and prepared concrete slurry by agitator. The existing vibrating screen is to separate the sand and gravel by placing the material on the screen frame, driving the screen frame to reciprocate through the vibrating motor, and then screening the aggregate. A vibrating screen can only realize a kind of The screening operation of materials, such as screening one by one, is inefficient, and some screen surfaces are divided into partitions, and the screen surfaces are divided into multiple parts through partitions, and then screened, but the screen surface needs to be enlarged to make the screen surface The strength is weakened, and with the increase of the screen surface and the increase of the weight of the material, the vibration effect will be reduced, the power of the vibration motor is insufficient, and the vibration machine is huge and inconvenient to move;

[0003] Publication number CN203526043U discloses a three-channel vibrating screen, which is mainly composed of a screen frame, a screen surface, a vibrator, a vibration-damping support device or a vibration-damping hanging device, and the screen frame is installed on the Basically, the overall screen frame is composed of two retaining side plates on both sides and two support side plates in the middle connected by multiple screen surface support beams, and the screen surface is installed on the support beams between the side plates. The supporting side plate, the retaining side plate and the side screen surface and the middle screen surface together form a screen box with three material passages. The vibrator is installed on the two supporting side plates or on the vibrator installation beam above the supporting side plate In this method, the screen surface is divided into three parts, and the materials are placed in the three areas in sequence. Because the screening particle size of the materials is different, the corresponding mesh size is also different, but because the mesh in the device cannot be replaced, it cannot Used for screening of various materials

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