| 摘要 |
A spiral conveyor (27) for a concrete extrusion machine (20) has a first spiral conveyor section (100) with a first external diameter (d1). There is a second spiral conveyor section (102) having a second external diameter (d2) which is greater than the first diameter (d1). The first section (100) is spaced apart from the second section. A third spiral conveyor section (110) is between the first section and the second section (102). The first end of the third section (110) is connected to the first section (100) and the second end is adjacent to the second section (102). The second spiral conveyor section (102) may be mounted on a hollow shaft (140) of the third section (110). The second section (102) has two longitudinally divided components (130, 132), each having a recess (134, 136) therein. Connectors (168) interconnect the two components and a locking device (142, 144) is between the hollow shaft (140) and the second section (102). |
