2results about How to "Maintenance safety" patented technology

This utility model provides a low-pressure rotor support for steam turbines with a buffer structure, belonging to the technical field of motor maintenance equipment. It includes: a base, a housing, lifting lugs, a rotating shaft, a rotating drum, a fixed base, a frame, shaft rollers, a winding drum, and a buffer belt. A housing is installed on the upper end of the base, with a placement groove along the upper edge of the housing and an open opening on the upper side of the housing. When the low-pressure rotor is placed on the support, the buffer belt laid on the surface of the rotating drum can contact the rotating shaft of the downward-placed low-pressure rotor. The rotation of the rotating drum provides buffering. Under the downward pressure of the low-pressure rotor's weight, the rotating shaft presses the buffer belt downward into the gap between the two sets of rotating drums, causing the buffer belt to wrap around the outer end of the low-pressure rotor's rotating shaft and engage with the placement groove in the housing. This not only increases the friction with the rotating shaft, making the low-pressure rotor more stable and less prone to rotating with the rotating drum during maintenance, thus making maintenance safer, but also allows the rotating bolts to contact the outer side of the shaft rollers, fixing the shaft rollers and consequently the winding drum.

This utility model relates to the field of power supply switches, specifically an electrically driven circuit breaker core module. It includes an insulating shell, a spring mechanism, a triggering assembly, a protection unit circuit module, a bracket, and a position adjustment mechanism. An input assembly and an output contact are disposed through the insulating shell. The input assembly includes an input contact and a vacuum tube connected to it, with a conductive busbar electrically connecting the vacuum tube and the output contact. The spring mechanism includes a bolt connected to the vacuum tube, a retaining ring at the end of the bolt, two sleeves fitted onto the bolt, and a spring fitted around the outer circumference of the bolt and connected at both ends to the sleeves. The triggering assembly triggers the opening or closing of the contacts inside the vacuum tube via the spring mechanism. This utility model enables control of the opening and closing states and allows for the detachment of the contacts from the connectors during maintenance, ensuring safe maintenance of the core module.