| 摘要 |
<p>The barrel-cleaning equipment has a projector head and a tube supplying the liquid. The head is in the form of a jet nozzle (8) supplied with liquid at high pressure, and which can be rotated by a shaft (4) mounted in the liquid supply tube (1). The shaft can be hollow, at least at the nozzle end, and supplying liquid to the nozzle. The nozzle may be mounted so as to rotate on an arm (6) extending sideways from the shaft. The nozzle not only rotates round the shaft axis, but also, under the action of bevel gears (12, 13) round that of the arm. There can be a cone on the supply tube, forming a seal against an opening in the barrel.</p> |
