Heavy load balance mechanism
A technology of balancing mechanism and heavy load, applied in cranes, manipulators, mechanically driven excavators/dredgers, etc., can solve the problems of small balancing torque, complex assembly, small preload force, etc., to meet the requirements of large swing and simplify Assembly, the effect of improving the service life
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[0016] see figure 1 , an embodiment of the present invention, the heavy load balance mechanism includes a telescopic shaft assembly, a fixed shaft assembly, a compression spring, a fixed assembly, a guide assembly and a preload assembly, and the fixed assembly is passed through screws (including the first screw 8 and the second screw 3 ) connect the fixed shaft and the guide assembly, and the compression spring connects the guide assembly and the telescopic shaft assembly.
[0017] The telescopic shaft assembly includes a telescopic shaft 1, a first bearing 26, a first rotating shaft 25, a first large retaining ring 24, a first small retaining ring 27, a grease nipple 2, an extruding spring 7, a slider 6 and an oil plug 17, The slide block 6 is packed into the grease storage area in the middle of the telescopic shaft 1 to seal the storage area. The telescopic shaft 1 is also provided with an oil passage leading to the reciprocating bearing 22, and then the extrusion spring 7 i...
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