Excavator and process for assembling or dissassembling such excavator
First Claim
Patent Images
1. An excavator comprising at least:
- a frame,a platform disposed on top of the frame,a hydraulic circuit assembly including at least;
a main pump delivering pressurized fluid,one or more hydraulic actuators,a hydraulic distribution system for distributing pressurized fluid from the main pump to the one or more hydraulic actuators, anda hydraulic pilot circuit comprising at least one manually operated hydraulic pilot valve unit connected to the hydraulic distribution system, andwherein;
the hydraulic distribution system is received on top of the frame but at least partly below the platform, while the pilot valve unit is at least partly disposed on top of the platform,the pilot valve unit is hydraulically connected to components of the hydraulic distribution system by hydraulic pipes;
the platform comprises a dedicated hole through which at least part of the pilot valve unit is adapted to be moved;
the pilot valve unit is fixed, directly or indirectly, on the platform such that the pilot valve unit or the hydraulic pipes extends through the hole;
wherein the pilot valve unit is adapted to be inserted from below the platform, through the dedicated hole, and is fixed on the platform from above the platform.
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Abstract
An excavator includes a frame, and a platform on top of the frame. A hydraulic distribution system is received on top of the frame but below the platform. A pilot valve unit is at least partly received on top of the platform. The platform includes a dedicated hole capable of receiving therethrough at least that part of the pilot valve unit which is received on top of the platform. The pilot valve unit is fixed, directly or indirectly, on the platform. The pilot valve unit can be mounted from below the platform, through the dedicated hole, and is fixed on the platform from above the platform.
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Citations
15 Claims
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1. An excavator comprising at least:
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a frame, a platform disposed on top of the frame, a hydraulic circuit assembly including at least; a main pump delivering pressurized fluid, one or more hydraulic actuators, a hydraulic distribution system for distributing pressurized fluid from the main pump to the one or more hydraulic actuators, and a hydraulic pilot circuit comprising at least one manually operated hydraulic pilot valve unit connected to the hydraulic distribution system, and wherein; the hydraulic distribution system is received on top of the frame but at least partly below the platform, while the pilot valve unit is at least partly disposed on top of the platform, the pilot valve unit is hydraulically connected to components of the hydraulic distribution system by hydraulic pipes; the platform comprises a dedicated hole through which at least part of the pilot valve unit is adapted to be moved; the pilot valve unit is fixed, directly or indirectly, on the platform such that the pilot valve unit or the hydraulic pipes extends through the hole; wherein the pilot valve unit is adapted to be inserted from below the platform, through the dedicated hole, and is fixed on the platform from above the platform. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A process for assembling an excavator comprising
providing a frame, providing a platform for being disposed on top of the frame, providing a hydraulic circuit assembly including at least: -
a main pump for delivering pressurized fluid, one or more hydraulic actuators, hydraulic distribution system for distributing pressurized fluid from the main pump to the one or more hydraulic actuators, and a hydraulic pilot circuit comprising at least one manually operated hydraulic pilot valve unit connected to the hydraulic distribution system, and wherein; positioning the hydraulic distribution system so that it is disposed on top of the frame but at least partly below the platform, and so that the pilot valve unit is at least partly disposed on top of the platform, hydraulically connecting the pilot valve unit to components of the hydraulic distribution system by hydraulic pipes; moving at least part of the pilot valve unit through a dedicated hole in the platform from below the platform and fixing the pilot valve unit, directly or indirectly, on the platform so that it is at least partly on top of the platform and such that the pilot valve unit or the hydraulic pipes extends through the hole, preassembling the hydraulic distribution system on the frame, and hydraulically connecting the pilot valve unit to the hydraulic distribution system so that no further hydraulic connection is needed subsequent to the preassembling step; subsequent to the preassembling step, placing the platform on top of the frame, including passing at least part of the pilot valve unit through a dedicated hole in the platform; subsequent to the placing step, fixing, from above the platform, the pilot valve unit directly or indirectly on the platform.
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15. A process for assembling and disassembling a platform from a frame of an excavator, comprising
assembling the platform to the frame by providing a frame, providing a platform for being disposed on top of the frame, providing a hydraulic circuit assembly including at least: -
a main pump for delivering pressurized fluid, one or more hydraulic actuators, hydraulic distribution system for distributing pressurized fluid from the main pump to the one or more hydraulic actuators, and a hydraulic pilot circuit comprising at least one manually operated hydraulic pilot valve unit connected to the hydraulic distribution system, and wherein; positioning the hydraulic distribution system so that it is disposed on to of the frame but at least partly below the platform, and so that the pilot valve unit is at least partly disposed on top of the platform, hydraulically connecting the pilot valve unit to components of the hydraulic distribution system by hydraulic pipes, moving at least part of the pilot valve unit through a dedicated hole in the platform from below the platform and fixing the pilot valve unit, directly or indirectly, on the platform so that it is at least partly on top of the platform and such that the pilot valve unit or the hydraulic pipes extends through the hole, and disassembling the platform from the frame by releasing, from above the platform, the pilot valve unit from the platform; and subsequent from the releasing step, removing the platform from the frame, including passing at least part of the pilot valve unit through the dedicated hole in the platform without disconnecting the pilot valve unit from the hydraulic distribution system.
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Specification