49results about How to "Meet the general requirements" patented technology

The present invention discloses an integrated universal simulation test system for electric network scheduling and electric quantity collection, a telemechanical terminal is connected with a test control device through an instation network, an electrical energy remote terminal is connected with a plurality of electric energy meters. The simulation test system is provided with a portable computer,and has a function of processing the remote measurement, remote signaling, remote control data of an automatic SCADA system and electric energy meter data of a electric quantity collection terminal simultaneously or separately; a specification analysis function of the automatic SCADA system and electric quantity collection system; the specification is an usual specification, or is added with a plug-in card mode. By means of the technical scheme, the system has stable operation and perfect functions; the system is portable and is flexible to be employed; the system has high reliability and well expandability, openness, compatibility, and excellent maintainability and easytouse; it is capable of expanding and modifying the specification expediently, and it is capable of plugging and playing.

The invention discloses a transport support used for components and parts. The transport support includes a frame; the frame includes an upper layer frame and a lower layer frame; the upper layer frame and the lower layer frame are connected together through longitudinal support rods each of which is located on each corresponding corner of the four corners; the four edges and two diagonals of theupper layer frame corresponding to the lower layer frame are respectively provided with multiple columns passing through the frame; the columns include outer sleeves and inner sleeves whose one ends are located at the internal of the outer sleeves, and the sizes of the overlapping sections of the inner and outer sleeves can be adjusted; the top ends of the inner sleeves are in hollow structures, and the outer circumferences of the hollow structures are provided with fixing holes; and supporting pads for supporting to-be-transported components and parts are installed at the internal of the hollow structures. Through the arrangement of the outer sleeves whose positions can be freely moved and inner sleeves whose heights can be freely adjusted, adjustment of the outer sleeves and inner sleeves according to the sizes and shapes of the to-be-transported components and parts can be guaranteed, and therefore, universality requirements for the transport of different components and parts can bemet.

The invention relates to a verification method for thermal design of volume-produced satellites and belongs to the technical field of thermal control of spacecrafts. The verification method comprises firstly, selecting a first satellite on the same platform for a thermal balance test, obtaining thermal balance test foundation temperature data of satellites on all platforms in a design technology state, then, performing statistics on actually measured thermal loss data of instruments and equipment in each follow-up satellite and temperature data of instruments and equipment in a thermal vacuum test under high and lower working conditions, installing contact heat transmission coefficients on equipment in a thermal simulation analysis model for improvement and optimization by using temperature data of the thermal balance test of the fist satellite, so that the simulation model can accord with the actual technology state of the satellites, and finally, on the basis of the test data of the first satellite, comparing actually measured thermal loss of equivalent instruments and equipment of the follow-up satellites and differences between the thermal vacuum test temperature and the first satellite to estimate the thermal design adaptability of the follow-up satellites. According to the verification method, verification of thermal balance tests of the follow-up satellites on the same platform is cancelled, and the satellite development process is optimized.

The invention belongs to the technical field of mechanical transmission and particularly relates to a parallel gear shifting mechanism of a transfer case. A piston A, a piston B and a piston C are disposed in a cylinder body and can move freely. The piston A is located on the right of the cylinder body. The piston C is located on the left of the piston A. The piston B is connected with the piston C through a spigot. One end of a gear shifting shaft is fixed to the piston A, the piston B and the piston C. The other end of the gear shifting shaft is inserted into the inner hole of a cylinder cover and integrally fixed with a conical sleeve. A signal switch is disposed on the cylinder cover. A shifting fork is located in the middle of the gear shifting shaft and integrally fixed with the gear shifting shaft. A locking mechanism is disposed on the shifting block and in the middle of the cylinder cover. Three inflating inlets I, II and III respectively corresponding to the piston A, the piston B and the piston C are formed in the cylinder body. When inflation is performed respectively through the inflating inlets I, II and III, the corresponding pistons are pushed to move by air pressure, the gear shifting shaft and the shifting fork are then driven to move, and the contact of the signal switch contacts with the conical sleeve to give out corresponding indications when corresponding gears are reached.