Sandstone smashing and grinding device for building engineering

Abstract

The invention discloses a sandstone crushing and grinding device for construction engineering, which comprises a box body and a feeding port, the feeding port is arranged on the top wall of the box body, and two first horizontal shafts are arranged inside the box body , the inside of the box is also provided with a second horizontal shaft whose axis is parallel to the axis of the first horizontal shaft, one end of one of the first horizontal shafts is provided with a semi-circular gear, and an upper rack is arranged above the semi-circular gear, and the semi-circular gear A double-sided rack is arranged under the gear, a rotating gear is arranged at one end of the second horizontal axis, a swing rod is arranged on the rotating sleeve, a swing grinding disc is arranged at the lower end of the swing rod, and a side and the inner wall of the box are arranged under the swing grinding disc. connected to the fixed grinding disc, and the bottom of the box is also provided with a screen plate and a plurality of cross bars. The invention has the advantages of simple structure, high crushing efficiency, good crushing effect on sand and stone crushed three times, and can screen sand and stone grains at the same time, and has strong practicability.

Description

technical field [0001] The invention relates to a building crushing device, in particular to a sandstone crushing and grinding device for construction engineering. Background technique [0002] In the process of building construction, sand and stones of different particle sizes need to be used according to different building requirements. When screening sand and stones, the construction unit usually places an inclined sieve on the ground, scoops up sand and stones with a shovel and pours them directly. On the sieve, to achieve simple screening of sand and gravel, in this case, the screening of sand and gravel is not thorough, and the work efficiency is low, and the sand and gravel cannot be ground, and the quality of construction is difficult to be guaranteed. Therefore need a kind of sandstone grinding and screening device, sandstone is ground, and the sandstone of different particle size is screened, but general screening device easily causes sieve mesh blockage. Content...

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Problems solved by technology

[0002] In the process of building construction, sand and stones of different particle sizes need to be used according to different building requirements. When screening sand and stones, the construction unit usually places an inclined sieve on the ground, scoops up sand and stones with a shovel and pours them directly. On the sieve, to achieve simple screening of sand and gravel, in this case, the screening of sand and gravel is not thorough, and the work efficiency is low, and the sand and gravel cannot be ground, and the quality of construction is difficult to be guaranteed. Therefore, a sand grinding and screening device is needed to grind the sand and screen sand of different particle sizes, but the general screening device is easy to cause the screen to be blocked

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