SECTION 1 - MECHANICAL ASSEMBLY
Drive Wheel Shaft Block Mounting
NOTE
The HD2 robot has custom blocks used to align the wheels and tighten the treads. These blocks need to be placed on the inside
and outside plates.
1. Insert the set screws into each block. The set screws need to be adjusted so the screw is set in just enough that the wheel shaft can
be inserted so the set screw is snug on the flat spot on shaft. Insert a wheel shaft into each block to check it. This is most
important on the inside blocks because the set screws can not be easily accessed later.
2. Screw in the tensioning screws and jam nuts. Refer to Fig 1A (interior) and Fig 1B (exterior). Do not tighten at this point.
The tensioning is performed after the treads and outside plates are installed.
3. Insert the carriage bolts through the sides to fasten the tensioning blocks. Tighten them with washers and nylon lock nuts. Refer
to Fig 1C and Fig 1D. Do not tighten the nuts at this point, just snug them up (they should still slide in the slots).
FIGURE 1A
Motor Mounting
This section applies mounting the motors in Treaded ATRs.
NOTE
•
Use the proper screw driver on the metric machine screws.
•
Wire the motor before installing it as described above
1.
The motors need a motor spacer plate between them and the slots cut out in the ATR. Refer to Fig 2A. The HD2 uses a rectangular
one that will be inserted so the long direction goes from front to back of the robot (used to cover the slots).
2. Using the metric machine screws and washers mount the motors shown in Fig 2B. You do not need to fully tighten until you have
installed the chains and treads, etc.
FIGURE 2A
FIGURE 1B
FIGURE 1C
5
FIGURE 1D
FIGURE 2B
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