| 主权项 |
1. A construction machine comprising:
an automotive lower traveling structure, an upper revolving structure rotatably mounted on said lower traveling structure, and a working mechanism tiltably provided on a front side of said upper revolving structure, said upper revolving structure comprises: a revolving frame constituting a structural support body; an engine mounted on a rear side of said revolving frame and extending in a left-right direction; a heat exchanging device, including an oil-cooler for cooling hydraulic oil and a radiator for cooling said engine, provided on said revolving frame on one side, in the left-right direction, of said engine; a hydraulic pump provided on the other side, in the left-right direction, of said engine; a support member provided on said revolving frame straddling said engine from an upper side thereof; an operator's seat arranged above said engine; and a housing covering at least an upper part of said operator's seat and having a rear side supported by said support member, wherein said revolving frame is constituted by: a bottom plate made of a flat plate; a left front vertical plate and a right front vertical plate installed upright extending toward the rear side and away from each other in the left-right direction on an upper surface side of said bottom plate; a support bracket provided on a front end portion of each of said left front and right front vertical plates and supporting said working mechanism; a partition plate installed upright on said bottom plate at a rear end position of each of said left front and right front vertical plates and extending in the left-right direction; a left rear vertical plate installed upright and extending to a rear side of said left front vertical plate sandwiching said partition plate, and a left rear end plate of said left rear vertical plate installed upright on a rear end portion of said bottom plate facing said partition plate in a front-rear direction, and a right rear vertical plate installed upright extending to a rear side of said right front vertical plate sandwiching said partition plate and a right rear end plate of said right rear vertical plate installed upright on a rear end portion of said bottom plate facing said partition plate in the front-rear direction; and a heat exchanging device mounting base extending in the front-rear direction on an upper side of one of said left rear vertical plate and said right rear vertical plate, wherein said heat exchanging device has a frame member supporting said oil-cooler and said radiator and mounted on said heating exchanging device mounting base and mounted to said partition plate of said revolving frame, wherein said frame member has a four-cornered frame body including a lower frame located on a lower part of said oil cooler and said radiator, extending in a front-rear direction, and mounted on said revolving frame, a pair of side frames extending upward from both ends of said lower frame in the front-rear direction, and an upper frame extending in a front-rear direction over the upper part of each of said side frames, wherein said upper frame has a mounting plate portion extending to the rear side beyond said rear side frame in the front-rear direction and projecting over said engine, and bolt insertion holes in said mounting plate portion, and said support member is constituted by a housing support base extending in the left-right direction above said engine and constituted by a front leg part and a rear leg part each extending downward and each having an upper end mounted on a side of said housing support base in the left-right direction, wherein a lower part of said front leg part of said support member is mounted on said partition plate of said revolving frame, and a lower part of said rear leg part is mounted on one of said left rear vertical plate and right rear vertical plate, wherein the other side of said housing support base in the left-right direction is fixed to said upper frame by bolts which are inserted through said bolt insertion holes provided on said mounting plate portion of said upper frame. |
