APPARATUS FOR RETAINING UPPER PIVOTING BODY OF CONSTRUCTION MACHINE

摘要

The present invention relates to an apparatus for retaining an upper pivoting body of a construction machine and, more particularly, to an apparatus for retaining an upper pivoting body of a construction machine, the apparatus being capable of conveniently retaining the upper pivoting body of a construction machine, for example a wheel-type excavator, on the lower traveling body thereof and capable of conveniently switching the upper pivoting body to a rotatable condition. To this end, the present invention provides an apparatus for retaining an upper pivoting body of a construction machine, the apparatus being installed on a construction machine comprising a lower traveling body, an upper pivoting body mounted on the lower traveling body to be able to pivot, and a working device mounted on the upper pivoting body, thereby retaining the upper pivoting body on the lower traveling body, the apparatus comprising: a protrusion formed on the lower surface of the upper pivoting body such that the lower side of the outer peripheral surface thereof is configured as a sloping surface; a socket portion formed on the upper side of the lower traveling body so as to be coupled with the protrusion in a female/male type; an elastic member arranged on the lower side of the socket portion so as to elastically support the socket portion; a first tapered member arranged on the lower side of the elastic member so as to support the elastic member, the lower surface of the first tapered member being configured as a sloping surface; and a second tapered member arranged on the lower side of the first tapered member, the upper surface of the second tapered member being configured as a sloping surface such that the same makes a sliding contact with the first tapered member, and the second tapered member lifting the socket portion, through a horizontal movement, to a position in which the same can be coupled with the protrusion or lowering the socket portion such that the same is separated from the protrusion.