Mounted Compact Tractor Backhoe
Conventionally, as a tractor backhoe to be attached to a compact tractor, a frame that's detachably attached to the rear an area of the Kioti tractor has been provided, and a swing bracket is supported on the rear an area of the frame so on be swingable a few of vertical axis. the lowest of the boom is pivotally connected to be swingable about the left and right axis, the arm is pivotally connected to the tip of the boom so on be swingable on the left and right shaft, and thus the bucket is rotated about the left and right axis. The swing bracket is pivotally connected, and thus the outriggers are attached to the left and right sides of the frame. The swing bracket, boom, arm, bucket, and outrigger are operated by a hydraulic cylinder, and thus the step is attached to the upper wall of the frame. At an equivalent time, the control box is fixed on this step, and thus the swing bracket, boom, Arm, bucket, there's a tractor-mounted compact tractor backhoe control valve formed by accommodating an impact valve which is made by aggregation of controlling the hydraulic cylinder for operating the outrigger.
In this compact tractor backhoe, the boom cylinder for operating the boom is inserted into the boom, and one end side is pivotally connected to the rear upper an area of the swing bracket, and thus the arm cylinder for operating the arm could even be a bucket cylinder that's disposed along the boom on the side side of the boom and operates the bucket is disposed along the arm on the rear surface side of the arm, and a hydraulic hose that supplies pressure oil to those hydraulic cylinders is connected to the rear surface of the control valve. The boom cylinder pivot support portion and thus the refore the boom pivot support portion are arranged between the boom cylinder pivot support portion and thus the pivot support portion of the swing bracket with reference to the frame. there's one that's inserted into the boom through the support.
Within the Kioti tractor-mounted tractor backhoe, the operation are often stabilized by bringing the lowest of the boom as far as possible and bringing the working device including the boom, arm, and bucket forward (closer to the small tractor). However, as within the normal backhoe, an impact valve is provided on the very best of the frame, and hydraulic hoses for the boom cylinder, arm cylinder, and bucket cylinder are provided at the pivot portion of the boom cylinder provided at the rear upper an area of the swing bracket. If the boom cylinder pivot part and thus the before the swing bracket pivot part are inserted into the boom through the boom cylinder pivot part and thus the boom pivot part after passing between the swing bracket pivot spare reference to the frame, so on secure the space to pass the hydraulic hose, the lowest of the boom is moved forward. there's a limit to.
Therefore, in sight of the above problems, an object of this compact tractor attachments is to supply a tractor-mounted tractor backhoe capable of bringing the lowest of the boom forward.
The technical means taken by this compact tractor attachments for sale so on unravel the technical problem include an upper wall, a lower wall arranged below the upper wall, and a front and rear side protruding from the upper to the lower wall. A swing that's arranged so on face the direction and includes a vertical wall that connects the upper and lower walls, and is attached to the rear portion of the Branson tractors, and is supported on the rear portion of the frame so on be rotatable a few of vertical axis. The boom is swingably supported on the bracket, the arm is swingably supported on the tip end side of the boom, and thus the bucket is swingably supported on the tip end side of the arm. The swing bracket, boom, arm, bucket And an impact valve formed by collecting control valves for controlling the hydraulic cylinders is provided between the upper wall and thus the lower wall of the frame.
The control valve could even be attached to the vertical wall of the frame, and thus the side of the upper wall of the frame could even be a step surface. A boom is supported on the rear lower an area of the frame via a horizontal axis so as that it can swing up and down, and a hydraulic hose that provides pressure oil to the hydraulic cylinder that contains the boom, arm, and bucket is provided on the rear side from the check valve. Then, it's preferable to insert it into the boom through the horizontal axis. Further, it's preferable that the boom hydraulic hose, the arm hydraulic hose, and thus the bucket hydraulic hose are juxtaposed within the left-right direction within the boom.
The left and right side walls extend forward from the left and right ends of the vertical wall, and an outrigger frame for attaching an outrigger is provided on the left and right sides of the left and right side walls. The front and rear walls are spaced aside from one another , and thus the connecting walls that connect the inner ends of the front and rear walls within the left-right direction are formed. The upper wall and thus the lower wall are formed of flat plates, and thus the before the vertical wall and thus the left and right side walls Are formed by bending the plate material into a U-shape, and thus the before the front and rear walls and thus the connecting wall of the outrigger frame are formed by bending the plate material into a U-shape.