Concrete preparation machinery for water conservancy construction

Abstract

The invention discloses concrete preparation machinery for the water conservancy construction and belongs to the field of project construction machinery. The concrete preparation machinery is characterized by comprising conveying belts, a rack body, a vibrating screen, a feeding hopper, hopper type conveyors and weighing-packaging assemblies. The conveying belts comprise a first conveying belt and a second conveying belt; the lower portion of the vibrating screen and the lower portion of the feeding hopper are each provided with a set of the hopper type conveyor and the weighing-packaging assembly; supporting springs are arranged under the front end of the vibrating screen and the front end of the feeding hopper correspondingly; material guiding plates are arranged under the vibrating screen; the hopper type conveyors are located below an opening of the vibrating screen and an opening of the feeding hopper correspondingly, and each hopper type conveyor comprises a hauling chain, small hoppers, a head wheel, a tail wheel, ratchet wheels and a connection plate; the side edge of each head wheel and the side edge of each tail wheel are fixedly connected with the corresponding first ratchet wheel and the corresponding second ratchet wheel correspondingly, and the vibrating screen and the feeding hopper are each fixedly connected with a spring piece; and each weighing-packaging assembly comprises a weighing device. Compared with the prior art, the concrete preparation machinery for the water conservancy construction has the advantage of being convenient and accurate in weighing and packaging.

Description

technical field [0001] The invention relates to an engineering construction machine, in particular to a concrete preparation machine suitable for water conservancy construction. Background technique [0002] Concrete is the most important building material, and engineering designers need to choose different concrete ratio designs according to the project structure, the amount of steel reinforcement, construction methods and other requirements. The so-called concrete construction mix ratio refers to the proportional relationship between the various constituent materials in concrete. The constituent materials include cementitious materials, cement, sand, stones and water. In the prior art, the sand and stones that are sieved out are inaccurately weighed when they are prepared on site, and the design of concrete mix ratio is a very important task in concrete engineering, which directly affects the smooth construction of concrete and the quality of concrete engineering. and the...

AI Technical Summary

Problems solved by technology

In the prior art, the sand and stones that are sieved out are inaccurately weighed when they are prepared on site, and the design of concrete mix ratio is a very important task in concrete engineering, which directly affects the smooth construction of concrete and the quality of concrete engineering. and the cost of concrete works

There is an error between the actual configuration of concrete and the preset concrete mix ratio, which is a common problem in existing engineering construction. For projects with relatively high requirements, only raw materials that have been weighed and packaged can be purchased, resulting in high construction costs

[0003] In order to reduce costs, there are currently projects that adopt on-site weighing and weighing for concrete configuration. Usually, it is conveyed through the material belt and transported to a small material pan for weighing. However, when the sand and gravel materials fall to the material pan, it will cause a downward impact on the material pan. , and the impact force of materials with different densities is also different, which will interfere with the weighing process

[0004] In addition, the specifications of bulk sand and gravel are not uniform. During the configuration process, it is first necessary to sieve sand of different thicknesses according to the preset ratio, so as to be used for different purposes.

As a result, the existing configuration method is complicated to operate and consumes a lot of manpower

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