6results about How to "Overcome damage" patented technology

The utility model relates to a kind of multistage mixing extrusion device for foamed material, especially in the technical field of mixing processing equipment.It includes mixing box, feeding rod, helical blade, rotating motor, water tank, water pipe, discharge pipe, connecting piece, anti-blocking mechanism.The problem that the existing extrusion screw is easily damaged due to heating caused by long time high-speed rotation is overcome, and the current foamed material is easily blocked in the process of extrusion.

The invention relates to the field of electric power, and discloses a multi-degree-of-freedom wave power generation device which comprises a turbine and two floating mechanisms, first bevel gears are symmetrically and fixedly mounted on the left side and the right side of the turbine, and the two floating mechanisms are symmetrically arranged on the left side and the right side of the turbine; and the two speed change mechanisms are symmetrically arranged at the bottoms of the two floating mechanisms correspondingly, each speed change mechanism comprises a second mounting shell, the second mounting shells are arranged on the bottom faces of the floating mechanisms, and a speed regulating mechanism is arranged on the side, close to the floating mechanisms, of an inner cavity of each second mounting shell. The transmission ratio of the speed adjusting mechanism to the transmission mechanism is automatically adjusted through the floating mechanism, kinetic energy increased by waves is converted into electric energy generated by the power generator to the maximum extent, and the problem that when the waves are too small, kinetic energy generated by rotation of a turbine of an existing power generation device is insufficient to push the power generator to rotate for power generation is solved. The problem that an existing power generation device cannot effectively convert kinetic energy of waves into electric energy generated by a power generator to the maximum extent is solved.

This invention relates to the field of overhead contact line electrified highway heavy trucks, and discloses an energy hub system including a pre-charging module, a first input regulator, a first bidirectional DC transformer, a second input regulator, and a second bidirectional DC transformer. A first end of the input side of the first input regulator is connected to a first output end of the overhead contact line, and the output side of the first input regulator is connected to the input side of the first bidirectional DC transformer. The output side of the first bidirectional DC transformer is connected to the pre-charging module. A first end of the input side of the second input regulator is connected to a second end of the input side of the first input regulator, and the second end of the input side of the second input regulator is connected to a second output end of the overhead contact line. The output side of the second input regulator is connected to the input side of the second bidirectional DC transformer, and the output side of the second bidirectional DC transformer is connected to the pre-charging module.

The invention relates to an optical element testing system, in particular to an optical element performance testing system and method based on ultralow-temperature high-vacuum coupling, and aims to solve the problem that an existing testing system cannot test the performance of an optical element while simulating an ultralow-temperature and ultrahigh-vacuum sequential coupling environment. Precision testing equipment is protected, and all-parameter and multi-attitude stable and accurate testing of the optical element is achieved. The system comprises a testing container and a tested container which are communicated with each other, and a high-reflectivity one-way film evaporation container is arranged in the testing container and used for slowing down temperature and pressure sudden change during vacuumizing so as to protect internal testing equipment; a contact type optical element clamping cold box is arranged in the tested container, is connected with the optical element through a flexible cold chain, and is matched with a liquid nitrogen / gas nitrogen system to realize proportional temperature regulation. The device can safely and truly simulate the extreme environment of a spaceflight deep space, and achieves the stable and accurate testing of all parameters and multiple attitudes of the optical element.

The application relates to a crashproof and pressure-adjustable grinding and polishing integrated machine, which comprises a machine shell, a grinding and polishing disc and a grinding and polishing head. The grinding and polishing disc is arranged on the table top of the machine shell, and a motor a for driving the grinding and polishing disc to rotate is arranged in the machine shell. A pair of arm plates on the machine shell are provided with a screw transmission mechanism matched with a motor b to drive a first sliding base to move left and right. The first sliding base is provided with a connecting seat, and the connecting seat is provided with a screw transmission mechanism matched with a motor c to drive a second sliding base to move up and down. The second sliding base is provided with an assembling seat carrying a motor d. The shaft end of the motor d is matched with a rotating shaft, and the rotating shaft is matched with a buffer assembly. The lower part of the buffer assembly is matched with the grinding and polishing head. The buffer assembly comprises a spring arranged in the vertical direction in the axial direction, so that the buffer assembly can give the grinding and polishing head a buffer in the vertical direction. The patent improves the existing ceramic grinding and polishing machine, and solves the problem that the hard contact relationship between the grinding and polishing head and the ceramic workpiece is easy to cause damage to the ceramic workpiece during the processing of the ceramic workpiece.

This invention relates to the field of laser sintering equipment technology, and particularly to a laser sintering forming machine, comprising a processing box with a rotatable cover on its side; a first cubic support frame fixed inside the processing box for supporting the processing box; a second cubic support frame fixed inside the processing box and located on one side of the first cubic support frame, also for supporting the processing box; and a processing table assembly. The laser sintering forming machine provided by this invention has two cubic support frames, namely the first cubic support frame and the second cubic support frame, arranged inside the processing box to form a frame structure. The processing table assembly, the printhead printing mechanism, and the laser sintering mechanism are then arranged within the two cubic support frames, resulting in a higher quality microstructure, improved vibration resistance, and reduced vibration during use.