A work machine includes a machine body, an engine, a rotary electrical device, and an electric power controller. The engine is provided on the machine body to move the machine body. The rotary electrical device is provided on the machine body to move the machine body. The electric power controller is disposed above the rotary electrical device in a height direction along a height of the work machine to control the rotary electrical device.

Provided is a construction machine having a plurality of equipment units and a structural body supporting the equipment units, restricting height of each of the equipment units supported by the structural body with no considerable decrease in the strength of the structural body and no considerable restriction on the height dimension of the equipment units. The construction machine includes a structural body having a plurality of beam members, a first equipment unit placed on the structural body, and a second equipment unit which is other than the first equipment unit and placed on the structural body. The plurality of beam members includes a first beam member having a first placement surface on which the first equipment unit is placed and a second beam member having a second placement surface on which the second equipment unit is placed, the second placement surface being lower than the first placement surface.

To provide a frame of construction machines that can enhance the rigidity of support members. The frame comprises a bottom plate, a pair of vertical plates being disposed spacedly in a width direction on a top surface of the bottom plate and extending longitudinally and vertically, and multiple support members extending toward outside in a width direction from breadthwise outer surface of the pair of vertical plates. At least one of the multiple support members comprises a vertical wall perpendicular to the bottom plate. A breadthwise inner end part of vertical wall is welded on breadthwise outer surface of one of pair of vertical plates. A lower end of the pair of vertical plates is welded intermittently on a top surface of the bottom plate, and there exists a non-welded part where the lower end of the vertical plates is not welded on the top surface of the bottom plate under breadthwise inner end part of the vertical wall.

A rotary working vehicle is provided with: a lower traveling body; an upper rotating body; a rotating frame constituting the bottom of the upper rotating body; a boom bracket supported by the rotating frame so as to be capable pivoting horizontally; a first vertical plate and a second vertical plate, which are raised from the bottom plate of the rotating frame; a swing cylinder provided on the opposite side of the second vertical plate from the first vertical plate and connecting the rotating frame and the boom bracket; a protrusion piece protruding toward the swing cylinder from a side wall of the second vertical plate above the swing cylinder; a hose guide provided to the protrusion piece; and first and second hydraulic hoses which pass above the first vertical plate and the second vertical plate, extend downward from above through the hose guide, and reach the swing cylinder.

A construction machine comprises a lower traveling body, an upper turning body, and engine that is disposed on the rear portion of the turning body, and a turning frame that constitutes the bottom portion of the upper turning body and on which the engine is mounted. The turning frame comprises a bottom plate, a left and right pair of a first vertical plate and a second vertical plate, and a coupling member that divides the space between the first vertical plate and the second vertical plate. The coupling member includes a top plate and a front and rear pair of a front side plate and a rear side plate that extend downward from both ends of the top plate in the front to rear direction, and forms a box shape structure with the first vertical plate and the second vertical plate. The box shape structure has a first opening formed in the first vertical plate, a second opening formed in the second vertical plate, and a front engine support part formed in the top plate.

A working machine includes a support bracket attached to a machine body, a first mounting member provided to the support bracket and formed of an elastic member, a first cooler and a second cooler arranged in parallel to a horizontal direction and mounted on the support bracket with the first mounting member, a fitting bracket detachably fitted to upper portions of the first and second coolers, and a second mounting member arranged between the fitting bracket and the first and second coolers and formed of elastic member.

A rotary working vehicle is provided with: a lower traveling body; an upper rotating body; a rotating frame constituting the bottom of the upper rotating body; a boom bracket supported by the rotating frame so as to be capable pivoting horizontally; a first vertical plate and a second vertical plate, which are raised from the bottom plate of the rotating frame; a swing cylinder provided on the opposite side of the second vertical plate from the first vertical plate and connecting the rotating frame and the boom bracket; a protrusion piece protruding toward the swing cylinder from a side wall of the second vertical plate above the swing cylinder; a hose guide provided to the protrusion piece; and first and second hydraulic hoses which pass above the first vertical plate and the second vertical plate, extend downward from above through the hose guide, and reach the swing cylinder.

A rotary working vehicle is provided with: a lower traveling body; an upper rotating body; a rotating frame constituting the bottom of the upper rotating body; a boom bracket supported by the rotating frame so as to be capable pivoting horizontally; a first vertical plate and a second vertical plate, which are raised from the bottom plate of the rotating frame; a swing cylinder provided on the opposite side of the second vertical plate from the first vertical plate and connecting the rotating frame and the boom bracket; a protrusion piece protruding toward the swing cylinder from a side wall of the second vertical plate above the swing cylinder; a hose guide provided to the protrusion piece; and first and second hydraulic hoses which pass above the first vertical plate and the second vertical plate, extend downward from above through the hose guide, and reach the swing cylinder.

Problem to Be Solved: To provide a frame of a construction machine that can prevent a crack caused by a torsion load. Solution: The frame comprises the center member including the bottom plate and a pair of left and right vertical plates disposed on a top surface of the bottom plate, a pair of left and right skirt members horizontally disposed on both left and right sides of the center member, and a plurality of beam members disposed between the center member and right skirt member and between the center member and left skirt member, respectively. The plurality of beam members include the plate beam member disposed in a perpendicularly erected manner against the bottom plate. The first and second bent parts are formed on the plate beam member The plate beam member has the first part extending outward in a horizontal direction from the center member to the first bent part, the second part extending from the first bent part to second bent part, and the third part extending outward in a horizontal direction from the second bent part to the skirt member.

A working machine includes a support bracket attached to a machine body, a first mounting member provided to the support bracket and formed of an elastic member, a first cooler and a second cooler arranged in parallel to a horizontal direction and mounted on the support bracket with the first mounting member, a fitting bracket detachably fitted to upper portions of the first and second coolers, and a second mounting member arranged between the fitting bracket and the first and second coolers and formed of elastic member.