3results about How to "Flexible load adjustment" patented technology

The utility model discloses a kind of electric push rod load life testing devices, comprising: rack;Fixed seat is located in the lower part of the rack, for fixing the electric push rod to be measured;At least two horizontal parallel arrangements of sliding load, sequentially arranged in the vertical direction above the electric push rod to be measured;The lowermost sliding load is connected with the output end of the electric push rod to be measured;Guiding mechanism, vertically arranged on the rack, for guiding the sliding load along vertical direction sliding;Barrier, located on the rack or guiding mechanism, for abutting below each layer of sliding load to maintain the spacing between layers;Wherein, the electric push rod to be measured pushes the lowermost sliding load to move up and sequentially triggers the sliding load linkage of adjacent upper layer, forms load stepwise increasing.The utility model has the advantages that: the stepwise increasing of load is realized, the dynamic scene of load layer-by-layer superposition in actual working condition can be simulated, and test result is closer to real application.

The utility model discloses a water pump bearing friction torque detection instrument which comprises a support and a servo motor, a loading cylinder is arranged on the support, and the output end of the loading cylinder is connected with a fixing tool used for fixing an outer ring of a water pump bearing. A loading air cylinder is arranged on the support, a positioning tool used for fixing a water pump bearing mandrel is rotationally arranged on the support and located below the loading air cylinder, a torque sensor is connected to an output shaft of the servo motor, the torque sensor is in transmission connection with the positioning tool through a connecting module, and an output shaft of the loading air cylinder and an output shaft of the servo motor are coaxially arranged. The torque measuring device is simple in structure and closer to actual working conditions, and torque measurement of the water pump bearing assembly under different loads is achieved.

The invention discloses an optical storage direct-flexible building system based on centralized energy storage, and relates to the technical field of energy and electric power systems, and the system is characterized in that a distributed household photovoltaic system carries out electric power mutual transmission with a village-level centralized energy storage station through a low-voltage direct-current power distribution network, and an electric energy router dynamically adjusts electric power flow according to real-time power generation and load conditions. The power demand of the direct-current load of the household is preferentially ensured, and when more power is generated, redundant power is supplied to the movable energy storage load through the low-voltage direct-current power distribution network or stored in the village-level centralized energy storage station; when power generation is insufficient, power is taken from the village-level centralized energy storage station through the low-voltage direct-current power distribution network; the village-level centralized energy storage station and the low-voltage direct-current power distribution network carry out electric power bidirectional exchange through the PCS, and when the electric power of the village-level centralized energy storage station is sufficient, excess electric power is returned to the low-voltage direct-current power distribution network through the PCS; when the electric power of the village-level centralized energy storage station is insufficient, the electric power is obtained from the low-voltage direct-current power distribution network, and continuous power supply of the household direct-current load is ensured through combination of centralized energy storage and movable energy storage.