3results about How to "Solve the disassembly problem" patented technology

This invention relates to a rapid disassembly and assembly method for fuel cell stacks, belonging to the field of fuel cell technology. The method uses a disassembly and assembly module composed of pull plates and lifting devices to disassemble and replace faulty battery unit modules in a fuel cell stack. Specifically, it includes the following steps: installing pull plates on adjacent modules of the faulty battery unit module; placing lifting devices on both sides of the faulty battery unit module, with the mounting surface and working surface of the lifting devices abutting against the pull plates on both sides; activating the lifting devices to drive the adjacent modules of the faulty battery unit module away from each other, leaving space between the adjacent modules for battery unit module replacement; replacing the faulty battery unit module, removing the lifting devices, and restoring the fuel cell stack. Compared with existing technologies, this invention can achieve rapid disassembly and replacement of faulty battery unit modules inside a fuel cell stack without compromising the overall pre-tightening force and airtightness of the stack.

The application discloses a large-bore diesel engine main bearing cover dismounting device and dismounting method. The device comprises a hoisting unit, a lower slide rail assembly and a main bearing cover support unit. The hoisting unit is fixed on the upper part of the frame on both sides. The lower slide rail assembly is supported on the oil pan rib plate. The support rod of the main bearing cover support unit is vertically supported on the both ends of the cross beam. The upper end is fixed with the lower end of the main bearing cover screw. The lower end is hinged with the both ends of the cross beam. The top block of the main bearing cover support unit is fixedly connected with the lower center of the main bearing cover. The dismounting method comprises the following steps: 1) completing installation; 2) using the hydraulic stretcher to lengthen the main bearing cover screw to unload the main bearing cover nut; and 3) using the main bearing cover support unit to dismount the main bearing cover. The application significantly improves the work efficiency and operation safety of the main bearing cover dismounting, greatly reduces the labor intensity of the main bearing cover dismounting, and solves the problem of the main bearing cover dismounting of the large-bore diesel engine.