9 results about "Rudder" patented technology

The invention provides a fishtail rudder comprising a front end, a middle body and a fishtail, wherein the front end comprises a rudder head tube which is smoothly transited to and connected to the middle body; the middle body is a streamlined NACA airfoil with rudder side plates on both sides; and the fishtail comprises a trailing edge plate connected with the middle body, wedge-shpaed plates onboth sides of the fishtail and a plane tail transom plate at the rear part of the fishtail. The fishtail rudder also comprises a plurality of vertical partition plates and horizontal partition platesfor reinforcement. A corresponding horizontal partition plate is arranged between every two vertical partition plates and a corresponding water flow hole is arranged on each horizontal partition plate. The fishtail rudder is divided into several parts by the vertical partition plates and is bilaterally symmetrical.

An inflatable floating device has an inflatable body which includes front and rear ends, a hand grip disposed on a top side of the inflatable body adjacent to the front end, a rudder portion projecting downwardly from a bottom side of the inflatable body, a counterweight disposed in the inflatable body adjacent to the bottom side, and two leg support parts disposed on the top side of the inflatable body. The bottom side of the inflatable body is convexed downwardly between the front and rear ends.

The invention discloses a rudder blade supporting frame and a rudder blade mounting trolley. The rudder blade supporting frame comprises a fixing frame, two first drivers, two sets of first pulley assemblies, a first moving frame and a plurality of first flexible cables. The fixing frame is provided with a vertical channel with the top penetrating through, and the fixing ends of the two first drivers are fixed to the two sides of the fixing frame. The two first drivers are used for driving the two first pulley assemblies to move up and down. The first movable frame is located in the vertical channel and slidably connected to the fixed frame. The first flexible cable is wound above a pulley of the first pulley assembly, the two ends of the first flexible cable vertically extend downwards, one end of the first flexible cable is fixed to the fixing frame, and the other end of the first flexible cable is fixed to the first moving frame. By means of the first pulley assembly and the first flexible cable structure, the rudder blade supporting frame can adjust the height size of the rudder blade supporting frame according to the height size of a rudder blade needing to be supported. And the rudder blade mounting trolley can convey the rudder blade to a mounting position to finish mounting.

The invention aims to provide a fish-like wing-flap-type rudder device. The fish-like wing-flap-type rudder device comprises a fish-like primary rudder and a fishtail-type secondary rudder. A rudder front body of the fish-like primary rudder is in a streamline symmetrical wing shape. A rudder middle body of the fish-like primary rudder is a flat-plate waist section. A rudder back body of the fish-type primary rudder is in a fan shape, the rudder back body of the fish-type primary rudder is hinged to the fishtail-type secondary rudder, and the fishtail-type secondary rudder rotates relatively along with the rotation of the fish-like primary rudder. The fish-like wing-flap-type helm device has good rudder effects under the condition of small rudder angles, can guarantee the heading stability of ships, and is suitable for inland river transport ships, port operation ships and ocean engineering vessels with specific requirements for ship maneuverability, and further applicable to original sample conveying transport ships with high requirements for head stability.

The invention discloses a reusable two-stage injection aircraft with pneumatic combined structures connected in parallel, which comprises a booster-stage aircraft and a track-stage aircraft, a guide plane for mounting the track-stage aircraft is arranged on the upper surface of the booster-stage aircraft, and the guide plane is arranged along the length direction of booster-stage flight. And the guide plane is seamlessly attached to the lower surface of the orbit-level aircraft. According to the aerodynamic combined structure of the two-stage injection aircraft, the boosting-stage waverider base body and the orbit-stage waverider are constructed in a two-stage injection horizontal separation mode, and the aerodynamic layout of the deformable wings and the vertical tail rudder is added to the boosting-stage waverider base body, so that the aerodynamic combined structure of the two-stage injection aircraft has good wide-speed-range aerodynamic performance and stability performance; the technical risk of interstage separation is effectively reduced, and the method can be used as a scheme for transporting a reciprocating aircraft in the field of aerospace and can be repeatedly used.

The invention provides a remote controller capable of switching left and right hand modes. The remote controller comprises a remote controller casing, wherein a circuit board is arranged inside the remote controller casing and is at least provided with a retreating signal transmission circuit and a turn signal transmission circuit; a first group of switches are connected to the retreating signal transmission circuit; a second group of switches are connected to the turn signal transmission circuit; the lower part of the remote controller casing is a pistol-shaped gripping handle; a trigger is arranged in front of the gripping handle and is connected with the first group of switches. The remote controller is characterized in that an L-shaped rotating handle is rotationally arranged at the front end of the upper part of the remote controller casing; a vertical rudder is arranged at the other end of the L-shaped rotating handle; the second group of switches are connected with the verticalrudder by using a flexible wire; a display screen is arranged at the upper part of the remote controller casing and is connected with the circuit board inside the remote controller casing. According to the remote controller provided by the invention, rotation of the vertical rudder in a horizontal direction is realized; in addition, the influence on the conventional components of the remote controller is avoided and the damage to integral attractiveness of the remote controller is prevented.

The invention provides a rudder blade mounting fixture, belonging to the field of ships and designed to solve problems that an existing operating platform limits a rudder blade only being mounted at a relatively high position, and so on. The rudder blade mounting fixture comprises a supporting platform and a stern operating platform; the supporting platform is fixedly connected with the stern operating platform; a recess is arranged in the supporting platform and the bottom of the rudder blade is arranged in the recess; the stern operating platform is used for translating and/or jacking the supporting platform. Due to the arrangement of the recess in the rudder blade mounting fixture, a mounting height of the rudder blade can be reduced and the rudder blade thus can be mounted at a lower position on a ship body. The rudder blade mounting fixture is simple in structure, and stable and reliable.

The invention provides a bus information extraction device of a rudder system in a loop and a semi-physical simulation method. The extraction device comprises an industrial personal computer, a 1553Bbus acquisition and optical fiber transmission interface board, a matched cable and an optical fiber; the industrial personal computer and the 1553B bus acquisition and optical fiber transmission interface board are jointly accessed into a CPCI/PCI bus; the 1553B bus acquisition and optical fiber transmission interface board is used for connecting the bus information extraction device into a 1553Bbus in a bus monitor mode through a matched cable; the 1553B bus is connected with a plurality of RT terminals including a rudder system and a guidance machine, and the 1553B bus acquisition and optical fiber transmission interface board is connected with the simulation system through an optical fiber. According to the invention, via the control of the FPGA transmission scheduling control module,the real-time rapid extraction and synchronous conversion of 1553B bus information can be realized and transmitted to an optical fiber network; the invention is small in time delay and stable in frame period, and solves the problems that the existing master-slave 1553B bus interface computer software is large in data acquisition and forwarding time delay and easily causes divergence of a simulation test.

The invention provides a manufacturing method of a rudder blade jig frame. The manufacturing method comprises the following steps that firstly, a jig frame template is manufactured through cutting; secondly, the jig frame template is checked with a transverse profile drawing of a rudder blade as the reference, and vertical columns are welded to the qualified jig frame template according to a vertical column distribution profile drawing, so that a plurality of crosspiece jig mould frame bodies are formed; and thirdly, the crosspiece jig mould frame bodies are arranged and welded to form the rudder blade jig frame. According to the method, the precision of the jig frame can be improved, and meanwhile the manufacturing difficulty of the jig frame is lowered.