(57) Abstract:The invention relates to a transport machine building. The mover includes axle, two disks of elastic material and the rim of the elastic material with the blades on the outer surface forming the inner sealed chamber. The rim is made in the form of an arch with blades having convex bearing surface. Blades with convex surface are evenly spaced along the length of the rim and inside and outside of the rim, forming a series of isolated compartments. While supporting surface of the rim is made with the ability to take the form of an arc of a circle of larger diameter. The invention is aimed at reducing the hydrodynamic losses. 2 Il. The invention relates to transport machinery, mainly for the production of amphibians.Known propulsion amphibians, containing the Central axis, the rim with vanes on the outer surface and two disk drives forming a chamber filled with air at the required pressure (U.S. patent N 1547265, 60 F 3/00, 1925).The disadvantage of this mover in the form of a paddle wheel blades are large hydrodynamic losses at the entrance of the blades into the water and getting out of the water and consequently pattypan) is the driver of amphibian, containing the axis, two disks of elastic material with the blades on the outer surface forming the inner sealed chamber filled with air at the required pressure. The rim is made in the shape of an arch with blades having a convex surface (application Germany N 3827804, 60 F 3/00, 1989).The disadvantage of this mover in the form of a paddle wheel blades are large hydrodynamic losses at the entrance of the blades into the water and getting out of the water and consequently the loss of power when driving on the water.The technical purpose of this invention is the reduction of hydrodynamic losses propulsion during movement on the water and accordingly reducing the power required for movement of amphibians.To solve this problem is proposed propulsion amphibians, containing the shaft, two disks of elastic material and the rim of the elastic material with the blades on the outer surface forming the inner sealed chamber filled with air at the required pressure, and the rim is made in the form of an arch with blades having convex bearing surface.The essence of the invention lies in the fact that rim is divided blades on the same compartments, allowing you to create vozdushnogo diameter.Thus the abutment surface of the propulsion works like a caterpillar and amphibian with this thruster slides through the water with minimal hydrodynamic losses at the entrance of the blades into the water and out of water, in addition as water contacts only the perimeters of compartments inside of the rim, in which is formed an air bag, there is no suction surface of the rim to the water, which also reduces power loss when driving through water, and by increasing the speed of movement of amphibians, the propulsion is almost completely out of the water, dramatically reducing hydrodynamic resistance to movement, and hence the power consumption for the movement.The implementation of the cross-section of the rim in the shape of an arch with a convex bearing surface ensures the rigidity of the supporting part of the propulsion and reduces the likelihood of puncture sealed chamber when moving on land.In Fig.1 shows a General view of the proposed thruster of Fig.2 - cross section.The inventive propulsion device includes a shaft 1, which is hermetically connected with two disks 2 of elastic material, which is hermetically connected to the rim 3 of elastic material with convex blades 4, forming an internal sealed chamber 5, which is filling the air bags when driving on water where the bearing surface of the rim 3 of the mover takes the form of an arc of a circle of larger diameter.The thruster operates as follows: when entering water load (useful) and weight amphibians) through shaft 1 is transmitted to the rim 3, the abutment surface which takes the form of an arc of a circle of larger diameter (due to the pressure in the inner sealed chamber 5). The propulsion is partially immersed in water, as increases bearing surface and formed an air cushion in isolated compartments 6. The lower part of the rim 3 works like a caterpillar and amphibian starts to move through the water with low hydrodynamic resistance due to the gradual entry of the blades 4 in the water and out of water, and lack of wetting (suction), i.e., the entrance and exit of the blades 4 is slower than the paddle wheel of a constant diameter, as well as energy hydrodynamic resistance is approximately proportional to the cube of the speed of entry and exit of the blades 4 and decreases the power required for the movement of amphibians. The decrease in the wetting (suction) surface of the rim 3 to the water is due to the fact that water in contact only the perimeters of isolated compartments 6.When the movement of the amphibian on land arched about who has the necessary cross amphibious cross-country. Mover amphibians, containing the shaft, two disks of elastic material and the rim of the elastic material with the blades on the outer surface forming the inner sealed chamber filled with gas under pressure, and the rim is made in the form of an arch with blades having a convex bearing surface, wherein the rim is divided blades on the same compartments, allowing you to create an air cushion during movement on the water, where the bearing surface of the rim propulsion takes the form of an arc of a circle of larger diameter.
FIELD: transport engineering; amphibian vehicles.
SUBSTANCE: proposed vehicle has trimaran water displacement body, wheeled propulsive device and water propulsor. Two pressure chambers with fans are installed in bow of body. Surface of body bottom part is provided with bend having two slot-like holes connected with pressure chambers to let out air jets created by fans and forming air cushion in under-bottom space. Wheeled propulsive device is of rolling type and it has individual drive from geared motors. Wheels of propulsive device are made in form of cylindrical housing with flanges on outer surfaces of which round-shape cross slots are milled in number corresponding to number of support and rest flexible members of rim secured by pins in holes of flanges for turning through angle of roll out to form, together with wheel rim and inner engagement of support-and-drive device of vehicle, mechanism with three degrees of freedom implementing rolling system with negative friction providing translational movement of vehicle owing to upward-forward (backward-up-ward) displacement of center of masses. Support-and-drive device can be furnished with covers interconnected by studs. End of upper stud can be made in form of cylinder fitted into extensible grip installed in upper part of vehicle body on its side to change mode of operation of wheel. Water propulsor can be made in form of paddle wheels installed on vertical posts for vertical displacement and containing cylindrical housing fitted in bearings on axle and paddles of rectangular shape or paddles with bevels to build additional traction force and increase efficiency when moving in water or negotiating bogged terrains.
EFFECT: improved operating characteristics of amphibian vehicle.
3 cl, 6 dwg
FIELD: armored equipment, in particular, armored caterpillar vehicles.
SUBSTANCE: the vehicle is provided with folding water displacement tanks, whose spaces communicate with the inner space of the hull, sections of hinged flaps-pontoons, hinge-joined along the hull on the sides and that can in the non-operating position be packed up on the left-hand and right-hand flaps of the hull from the top, built in the rear sections of the flaps-pontoons on the sides of water - motion propellers of the "packed propeller" type with a drive from the power plant, that can in the inoperating position be packed up in the recesses in the upper rear part of the hull and be hinged together with the rest sections of the flaps-pontoons, hydrofoil in the nose section of the hull. A 12.7-mm machine gun with a circular rotation is installed on the hull roof with a forward shift. The vehicle has a mass up to 5.5 tons.
EFFECT: enhanced speed and stability of motion afloat.
FIELD: transport engineering.
SUBSTANCE: invention can be used for creating amphibian with open seat and common drive for simultaneous or in-turn operation of ground and water propulsion drives. Proposed amphibian vehicle with open seat is furnished with drive engine to operate, either in turn of simultaneously, ground propulsion or water propulsion drive made in form of jet drive by means of two independent clutches. Ground propulsion drive is made as all-wheel-drive. Drive engine is installed between ground propulsion axles under seat. Front and/or rear wheels are made for turning opposite to direction of vehicle movement when moving over water. According to proposed method, ground propulsion drive is engaged at water movement, and front and/or rear wheels are set into rotation opposite to direction of movement. At movement over water control is effected by means of rotary reactive nozzle and by control of front wheels.
EFFECT: improved operating characteristics of amphibian vehicle.
8 cl, 2 dwg
FIELD: transport engineering; amphibians on pneumatic wheels.
SUBSTANCE: proposed vehicle has hull with smooth bottom and pneumatic wheels with drive and treads. Tires of pneumatic wheels are furnished with water-gripping treads. Skis are installed at adjustable angle of incidence under smooth bottom behind wheels at a distance from wheels. Skis are made adjustable in height through ski clearance and they have width not less than thickness of wheels. Ends of skis are truncated upwards, and redans are made before wheel drive axles.
EFFECT: possibility of moving over water at higher speed without considerable increase in engine power rating.
FIELD: transport engineering.
SUBSTANCE: proposed steering gear of amphibious vehicle has levers arranged in control cabin at working place of driver, and control tie-rods coupled with ground and water-propelled units. Proposed gear is furnished with turning mode selector arranged between said levers and control tie-rods. Turning mode selector is made for changing to control side gearbox distributors when moving over ground and to control rudders of water-propelled units and transmission of increased control force when moving over water. Change-over is provided through summing lever installed on axle under floor of control cabin, traction-and-lever mechanism furnished with hydraulic booster and made for converting translation of tie-rods into rotation of telescopic propeller shaft, and through mechanism to convert rotation of telescopic propeller shaft into translation of cross steering tie-rod. Steering tie-rod is coupled with inner blades of rudders of left-hand and right-hand water-propelled units. Turning mode selector can be made in form of roller clutches with rods coupled by link and installed for axial displacement by means of two-position link with fixing in operating positions by ball stop. Making of telescopic propeller shaft hydraulic system of rudder booster of water-propelled unit and mechanism for converting rotation of telescopic propeller shaft into translation of cross steering tie-rod is shown.
EFFECT: simplified design, improved reliability and operating characteristics of steering gear with possibility of control by levers both when moving over ground and over water.
5 cl, 14 dwg
SUBSTANCE: invention can be used in designing ramp and propulsion and steering gear and their hydraulic systems. Novelty in proposed water craft is that it is furnished with streamlined carrying frame for fastening devices of propulsion and steering complex installed in hull aft part and formed by two pairs of rigid longitudinal beams hinge secured by inner ends of aft sheet of hull in zone located under loading side coupled by flexible cross beams in each pair and support bar between pairs. Hydraulic heads of propulsors are hinge-mounted on outer ends of each pair of longitudinal beams, being secured on said beams to form additional cross tie between beams. Carrying frame is furnished with power hydraulic cylinders connected with hydraulic system and installed to control position of heads and loading side by turning carrying frame in aft sheet hinge joints. Body of each is provided with upper roller support, being rolling support for each hinged loading side at its opening, and lower platform being rigid base interacting with ground at resting of hinged loading side on head body in loading position of loading side. Novelty in hydraulic system of watercraft is that it is furnished, in additional to propulsor control hydraulic cylinders, with hydraulic cylinders for setting ramps, changing thrust vector, fixing loading side and locking carrying frame. Each hydraulic cylinder, including propulsor position control hydraulic cylinders, are supplied through parallel hydraulic lines connected with main line, with electric control in each line. Invention contains description of design peculiarities of each line providing required modes of operation of watercraft.
EFFECT: improved performance of watercraft and creating of hydraulic system providing required mode of operation of watercraft.
9 cl, 11 dwg
FIELD: shipbuilding; designing amphibians.
SUBSTANCE: proposed amphibian has hull including deck and bottom; located under hull are pneumatic bottles and elastic protective shock-absorbing bottom in form of skin made from strips of material possessing high abrading resistance which are laid transversely overlapping each other. Amphibian is provided with motor plant and control member. Bottom skin extends as far as upper portion of hull; it is secured at clearance between sides and skin due to projection of extreme pneumatic bottles beyond surface of bottom. Skin strips are secured by means of rope lacing on the outside of amphibian perimeter. In case of availability of fender guards on sides, rope lacing may be made by means of lacing eyes. It is good practice to build bottom of two parts: upper and lower with clearance between them which is filled with elastic deformation material. Pneumatic bottles located between bottom and skin may be assembled from components of different diameters. Extreme bottles may have similar diameters of greater magnitude. Diameter of remaining intermediate pneumatic bottles may be lesser as compared with diameter of extreme bottles.
EFFECT: simplified construction of amphibian; enhanced protection; reduced mass; enhanced strength; increased running speed; enhanced maneuverability and economical efficiency.
4 cl, 1 dwg
FIELD: amphibian aircraft control systems.
SUBSTANCE: proposed system includes water touchdown sensor, unit of amphibian aircraft motion parameter sensors and computer for forming elevator automatic deflection signal. Control system includes optimal pitch angle setter and unit of amphibian aircraft motion parameter sensors includes sensor of speed made good through the water and present pitch angle sensor. Computer includes preset pitch angle stabilization unit and smooth connection unit.
EFFECT: improved safety characteristics; enhanced seaworthiness.
FIELD: transport engineering; amphibians.
SUBSTANCE: invention relates to amphibian vehicles, particularly, to post of hydraulic systems suspension. According to invention, vehicle has at least one wheel shifted out from vehicle body to support vehicle when it is used on the ground and retracted for use on water. Vehicle is furnished additionally with hydraulic cylinder containing hydraulic fluid, piston installed for movement inside cylinder and dividing the cylinder into first and second chambers, device to connected piston with suspension lever mechanism connected with wheel, first two-position valve designed to control fluid flow between first and second chambers at least on section of working stroke of piston, and second two-position valve connected only with one of first and second chambers. When first valve is open, and second valve is closed, post provides functions of suspension and/or damping of wheel vibrations. When first valve is closed and second valve is open, post serves as drive to move wheel between extended and retracted positions.
EFFECT: provision of retraction and extension of wheel through distance exceeding that required for normal riding.
13 cl, 11 dwg
FIELD: transport engineering; amphibian vehicle power train.
SUBSTANCE: proposed power includes engine with crankshaft, clutch or fluid coupling and transmission installed in line with engine crankshaft. Transmission has input shaft set into rotation from flywheel. Moreover power train contains additionally power takeoff unit designed to drive power takeoff shaft which is made for transmission of power to propulsion set intended for moving vehicle over water. Power takeoff unit has drive device secured on end of crankshaft on which flywheel is mounted. Drive device is made for transmission of power to power takeoff shaft.
EFFECT: improved layout of power train.
19 cl, 8 dwg