Structure for avoiding deflection of single propulsion oil cylinder piston rod of shield tunneling machine
A technology of piston rod and shield machine, applied in the direction of fluid pressure actuation device, etc., can solve the problem of difficult deflection of the piston rod of a single propulsion cylinder, and achieve the effect of not affecting the turning performance, increasing safety, and simple structure
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Embodiment approach 1
[0044] Implementation Mode 1: Please refer to Figure 3 ~ Figure 7 , adjust the relative position of the piston rod 4 and the cylinder barrel 3 of the propulsion cylinder according to the correct deflection position of the strut 5 of the single propulsion cylinder, so that the correct position of the piston rod 4 is used as the rear installation The installation datum of the frame 9 and the stay shoe 5. The mounting frame 9 is fixedly mounted on the end of the piston rod 4, and the symmetry plane of the mounting frame 9 passes through the axis of the piston rod 4 and the axis (or center of circle) of the shield tail 6. Two anti-deflection mechanisms 8 are symmetrically fixedly installed on both sides of the mounting frame 9. When installing the anti-deflection mechanism 8, it should be ensured that the support platform 86 of this mechanism is kept in contact with the inner wall of the shield tail 6 or left behind. There is a small gap. The guide sleeve 85 is installed on the...
Embodiment approach 2
[0049] Implementation Mode 2: Please refer to Figure 10 and Figure 11 , put the piston rod 4 and the brace shoe 5 in the correct position according to the same steps of the embodiment, fix the anti-bias mechanism 8 on both sides of the brace shoe 5, and install the anti-bias mechanism 8, ensure that the support platform 86 is in close contact with the inner wall of the shield tail 6 and that the elastic member 84 is compressed to a certain extent. When the shield machine turns, the working process and deviation correction principle of the anti-deviation mechanism 8 are the same as those in the first embodiment.
[0050] The technical scheme provided by the invention has the following beneficial effects:
[0051] 1. By setting the anti-deflection mechanism 8, using the cooperation of the guide sleeve 85, the elastic member 84 and the adjustment bolt 82, the piston rod 4 can automatically return to the equilibrium position when it deflects, effectively Prevent the circumfer...
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