| 摘要 |
A dowel bar inserter kit has removable attachment to and from a slipform paver. The kit includes a track bolster on each side having a crossbeam tying the bolsters together at the rear of the inserter. Each bolster is provided with two flange attachments to the paver, typically one flange attachment to the frame and one flange attachment to the jacking column of the paver. These paired attachments of each side bolster assure the kit maintains the same overall level maintained by the rectilinear frame of the paver during paver travel. Each bolster defines support car tracks. These support car tracks enabling inserter support cars to travel on the tracks during machine paving. During dowel bar placement, the support cars remain stationary with respect to the formed slab while the slip form paver continues with its required forward motion. These support cars also enable vertical up and down movement to permit insertion and removal of the dowel bar inserters from the recently formed slab. Insertion of dowel bars occurs through a dowel bar inserter pan, which pan is maintained at an adjustably constant vertical distance from the support cars through a system of telescoping beams and winches. A chain feeder is supported from the dowel bar inserter pan and operates to dispense dowel bars from a feeding mechanism, which is contained within the paver profile as defined by the machine tracks. |
