Small pavement lime powder laying device

Abstract

The invention relates to a small pavement lime powder laying device which effectively solves the problems that in the existing small engineering pavement lime powder laying and spreading process, theefficiency is low, and meanwhile occupational diseases of workers are likely to be caused. According to the technical scheme, the device comprises two vertical plates, the two vertical plates can synchronously move left and right; the left side and the right side of each vertical plate are each provided with a dispersing unit. Each group of dispersing units comprises a vertical scraping plate; theouter side wall of each vertical plate is connected with two air cylinders in one-to-one correspondence with the scrapers in a sliding manner; openings of the air cylinders face upwards, and the twoair cylinders located on the same vertical plate can synchronously move towards each other or away from each other. Each scraping plate is respectively fixed on piston rods of the two cylinders corresponding to the scraping plate; a piston rod of each air cylinder is sleeved with a first compressed spring capable of enabling the piston rod to move downwards, a normally-closed exhaust valve is arranged on the lower portion of a cylinder body of each air cylinder, and when the two second scrapers get close to the middle to make contact with each other, the two normally-closed exhaust valves on the same vertical plate make contact with each other and are opened at the same time.

Description

technical field [0001] The invention relates to the field of road construction equipment, in particular to a small-sized pavement lime powder laying device. Background technique [0002] In the initial stage of pavement paving, it is necessary to spread a layer of lime powder evenly on the roadbed to improve the properties of the roadbed. For large-scale project pavement, there are special lime spreading vehicles for paving, but for small-scale project pavement, at this stage Manual spreading is also carried out manually with a dump truck. The spreading process is as follows: firstly, the dump truck is used to unload the lime powder on the road at intervals, and then the workers use the hoarding boards to surround piles of lime powder, and use hand-held tools such as rakes to carry out the spreading process. The piles of lime powder are paved within the framework of the wall siege. This method is low in cost and suitable for pavement paving of small projects, but the paving ...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a small pavement lime powder laying device, which effectively solves the problem of low efficiency and easy occupational disease hazards for workers during the pavement lime powder spreading process of existing small projects. question

[0005] The invention is novel in concept, ingenious in structure and strong in practicability, and effectively solves the problem of low efficiency and easy occupational disease hazards of workers in the process of paving lime powder on existing small engineering pavements

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