Autonomous underwater vehicle (AUV) launch and recovery device driven by elastic linkage mechanism for extra-large unmanned underwater vehicle (XLUUV)

An autonomous underwater vehicle (AUV) launch and recovery device driven by an elastic linkage mechanism for an extra-large unmanned underwater vehicle (XLUUV), comprising:

• a tail end fixing box body, a tail end limit displacement block, a tail end driving case, a hydraulic device, a push plate, a tubular device box and an external sleeve,
• wherein the AUV launch and recovery device is a frame type tubular structure, a front end of the AUV launch and recovery device is a recovery end, a tail end of the AUV launch and recovery device is closed, and is coaxial fixed with the tail end fixing box body through the tail end limit displacement block;
• a front end face of the tail end fixing box body is processed with a groove, the groove is processed in a radial direction of the tail end fixing box body;
• the push plate is parallel to a central axis of the AUV launch and recovery device, and one end of the push plate and the groove of the tail end fixing box body are installed in a cooperation manner;
• the hydraulic device is installed in the tail end driving case, and a hydraulic rod of the hydraulic device extends out of the tail end driving case;
• the push plate is fixed to the hydraulic rod, and the tail end driving case controls movement of the hydraulic rod to make the push plate move radially in the groove;
• the external sleeve is coaxially sleeved on a periphery of the AUV launch and recovery device, and is configured for fixing the AUV launch and recovery device to the XLUUV;
• and
• the tail end driving case is positioned by an L-shaped driving case positioning tube fixed to a peripheral surface of the external sleeve;
• the tubular device box comprises:
• a tail end sleeve positioning plate, an impact cushion, metal guide rods, annular AUV positioning plates, elastic AUV positioning rings, a front end sleeve positioning plate, elastic rubber plates, inelastic hauling ropes, front end elastic rings and an inelastic linkage rope, wherein the tail end sleeve positioning plate, the annular AUV positioning plates and the front end sleeve positioning plate are sequentially and coaxially arranged, and the metal guide rods are uniformly distributed circumferentially, and each of the metal guide rods penetrates through a corresponding hole in an edge of a corresponding one of the annular AUV positioning plates;
• one end of each of metal guide rods is fixed to an inner side surface of the tail end sleeve positioning plate, an other end of the metal guide rod is fixed to an inner side ring surface of the front end sleeve positioning plate, and all metal guide rods are arranged in a circle;
• the tail end sleeve positioning plate adopts a circular plate structure, and the impact cushion is coaxially fixed to an inner side surface of the tail end sleeve positioning plate;
• the tail end sleeve positioning plate is coaxially fixed to the front end elastic rings;
• each of the annular AUV positioning plates and the front sleeve positioning plate is an annular structure, the annular structure is processed with two types of holes for installing the metal guide rods and the inelastic hauling ropes, and the elastic AUV positioning rings are coaxially installed on ring inner hole walls of the annular AUV positioning plates and a ring inner hole wall of the front end sleeve positioning plate;
• the elastic AUV positioning rings are made of elastic materials, and inner hole diameters of the elastic AUV positioning rings are smaller than an outer diameter of an AUV to be recovered;
• the AUV to be recovered is located through friction and elastic force generated by elastic deformation;
• one end of each of the elastic rubber plates is installed with a threaded cylinder, which passes through an annular hole of the front sleeve positioning plate and is fixed with a corresponding one of the metal guide rods;
• the elastic rubber plates form a circular arrangement;
• and
• one of the front end elastic rings is formed in an elastic rope, wherein one end of the elastic rope passes through holes in a same circular plane of the elastic rubber plates to form a closed elastic ring, wherein each of the front end elastic rings and the elastic rubber plates forms an elastic structure, which forms a cage structure or a bell mouth structure;
• wherein
• a number of the inelastic hauling ropes and a number of the elastic rubber plates are the same,
• wherein the inelastic hauling ropes are parallel to an axis of the tail end limit displacement block in the tubular device box, and a front end of each of the inelastic hauling ropes is fixed to a front end of a corresponding one of the elastic rubber plates and a tail end of the inelastic hauling rope passes through a hole of a corresponding one of the annular AUV positioning plates and is fixed on the tail end fixing box body, wherein
• the inelastic hauling ropes form a cylindrical tubular structure, and the inelastic hauling ropes are in a tension state;
• the inelastic linkage rope is installed between the tail end fixing box and the tail end sleeve positioning plate, wherein
• one end of the inelastic linkage rope is fixed on the tail end driving case, and an other end passes of the inelastic linkage rope through a hole on a surface of the push plate, which bypasses each of the inelastic hauling ropes arranged in a circle, and passes through another hole on the surface of the push plate and is fixed on the tail end driving case to form a closed ring, wherein
• the inelastic hauling ropes are closed inside the closed ring, and the hydraulic rod controls the push plate to move upward or downward, and makes an annular center formed by the inelastic linkage rope shrink or expand, wherein the inelastic hauling ropes move axially by relative motion, and pull the front ends of the elastic rubber plates to open or close the front end elastic rings.