Shotcrete Machine is the use of compressed air jet will be along the pipeline for transportation of concrete and blasting to the surface to the construction machinery. The dry and wet jet two types of jet aircraft, conveying gas from the former dry mixing materials, in the nozzle and pressure mixture of water emitted from the latter by the gas or to transport concrete pump nozzle emitted by the concrete mixture. Widely used in underground engineering, Roadway, tunnels, culverts, such as the lining construction.
Jets from the spiral concrete spiral feed-hopper to discharge dry evenly mixing materials sent to the push Chuisong room, the tank with a good mixing of concrete. Feeding then spiral-Chuisong hollow shaft and the introduction of the compressed air will dry mixing materials along the pipeline blown sent to the nozzle.
Spiral wet spraying machine features:
(1) spiral structure of the jet drive, hopper, body, walking devices, transmission of the hose and spray gun. (2) advantages of spiral jet with small size, light weight, simple structure, the low point on the material, easy to operate, the advantages of a uniform material. (3) shortcomings spiral jet dust concentration, spiral leaves and wear quickly, often need to replace wearing parts.
This paper first general introduction to the history of the development of concrete Jets, principle and analysis of the advantages and disadvantages of the current models, and then determine the design of this model. This was followed by the combined task of the design parameters of three cylindrical straight teeth reducer, the loser of the material, such as rotation of some of the majorcomponents of some parts of the relatively high demand for strength checking.