3results about How to "Big digging force" patented technology

The invention relates to a novel continuous chain bucket ship unloader which comprises a chain bucket excavating and lifting system (1), a connecting rod system (2), a cantilever crane assembly (3), a cantilever crane buried scraper conveying system (4), a cantilever crane support (5), a discharging chute system (6), a rotary mechanism (7), a rotary platform (8), a rotary bearing (11), a fixed chute system (12) and a wharf belt conveyor (13). A chain bucket excavating and lifting system (1) of the ship unloader is located at the head of an arm support, the direction of a material taking head is perpendicular to the plane of a main shaft of the arm support, during ship unloading operation, the chain bucket excavating and lifting system (1) rotates along with the arm support and drives the material taking head to move, a chain bucket excavates materials in the moving direction of the chain bucket, and bidirectional front-face flyback material taking is achieved. The arm frame moves in a pitching mode, so that the material taking head can adapt to working faces of different water levels, different ship types and different heights. The chain bucket ship unloader is simple in structure and light in self weight, the chain bucket material taking operation mode can be optimized, the material ship unloading process is simplified, and the ship unloading efficiency is improved.

The present invention relates to an electric-controlled multi-way valve for a medium-sized excavator, comprising two valve bodies, a right valve body and a left valve body, two main oil circuits, a main oil circuit 1 and a main oil circuit 2, the valve core components included in the right valve body are a load-unloading connection, a left travel connection, a rotary connection, a boom regeneration connection, a dipper arm regeneration connection and a standby connection in sequence; the valve core components included in the left valve body are a linear travel connection, a right travel connection, a boom connection, a bucket connection, a dipper arm regeneration connection and a load-unloading connection in sequence; the main oil circuit 1 and the main oil circuit 2 are connected to the oil port P1 and the oil port P2 respectively. Compared with the prior art, the present invention adopts an integral structure with a compact structure, which can meet the different requirements of various excavation actuators for flow pressure.

The application discloses a process for improving the performance of a excavator and relates to the technical field of excavators. The process comprises the following steps: step S01, starting the engine and making it run at full throttle after preheating and performing digging, soil throwing, walking and lifting operations, detecting and recording the bucket digging force, bucket rod digging force, lifting force and traction force; and step S02, installing a hydraulic system tester on the high-pressure pipeline of the hydraulic pump of a new excavator by using a bypass method, making the pump run at a rated speed, and observing and recording the flow readings of the front and rear pumps of the tester when the hydraulic oil temperature is 50+ / -5 DEG C. The application is a process technology for adjusting the pressure of each working oil cylinder of the main control valve in the hydraulic system of a new or old excavator and the excellent matching of the pump and the engine, fully improves the fuel utilization rate of the engine and the working efficiency and benefit of the whole machine, saves energy and is economical, and can improve and repair the performance and quality of the new or old excavator, such as the digging, crushing, lifting moment and speed.