2results about How to "Great exciting force" patented technology

This invention discloses an electromagnetic excitation device, relating to the field of seismic exploration technology. It includes a housing assembly, an excitation assembly, and a vibrating plate. The housing assembly includes a housing body with a first receiving groove having a first opening facing a first direction. The excitation assembly is disposed within the first receiving groove and includes two permanent magnets and an electromagnet. The two permanent magnets are arranged opposite each other with the same pole along a second direction and connected to the bottom wall of the first receiving groove. The electromagnet is disposed between the two permanent magnets and connected to the housing body. When an alternating current is applied, it vibrates back and forth between the two permanent magnets, generating an excitation force that acts on the housing body. The vibrating plate is disposed on the side of the bottom wall of the first receiving groove facing away from the first opening and is coupled to the ground. When the electromagnet is energized, it is subjected to the excitation force transmitted by the housing body and acts on the ground. Thus, the structure is simple, the overall size is small, the weight is light, and it is easy to carry. Simultaneously, it generates a large amplitude and excitation force, improving exploration accuracy and depth.

The utility model relates to a screening device for cat litter processing, which comprises a box body, a first screening frame and a second screening frame capable of movably screening are mounted in the box body, and the second screening frame is positioned below the first screening frame; adjusting devices are installed between the first screening frame and the box body and between the second screening frame and the box body. The two movable rods, the first screening frame, the second screening frame and the linkage device form a parallelogram, the first screening frame is pushed by the pushing device to shake, the second screening frame is pushed by the pushing device to shake, the second screening frame is pushed by the pushing device to shake, and the first screening frame and the second screening frame are separated from each other. The second screening frame is driven to shake through the linkage device, meanwhile, an adjusting spring of the adjusting device conducts automatic adjustment, so that shaking of the first screening frame and the second screening frame is accelerated, compared with the mode that an air cylinder is adopted to drive a screening net plate to move in a reciprocating mode to screen the plant cat litter, larger exciting force can be generated, and the screening efficiency of the plant cat litter is improved.