35results about How to "High steering torque" patented technology

The invention provides a dual-motor wire-controlled complex steering system and a control method thereof. The dual-motor wire-controlled complex steering system comprises a steering wheel, a steeringcolumn assembly, a road sense assembly, a dual-motor steering execution device and a steering control unit, and steering control of the system is completed through an adaptive control method. According to the dual-motor wire-controlled complex steering system, integration and unification of steering performance such as larger steering torque, lower energy consumption, faster response speed can berealized, steering control parameters are adjusted automatically according to actual driving situation, uncertainty in driving environment can be better resisted, and steering accuracy and vehicle safety are ensured.

The invention relates to the field of thrusters and discloses a universal thruster. The universal thruster comprises a shell (2) and a propeller (1). A joint bearing (3) is installed in the shell (2), the propeller (1) is installed on a spherical inner ring (31) of the joint bearing (3), a pushing guide rod (4) is installed on the spherical inner ring (31) and connected with a pushing motor (5), and the joint bearing (3) drives the propeller (1) to swing under the pushing function of the pushing guide rod (4). Steering of the universal thruster does not depend on steerage generated when water flow flows past a control surface but depends on vector thrust force which is more direct, so the steering radius is very small, and high steering torque can be generated even under a dead slow condition. The universal thruster has the advantage of being high in steerage and is particularly suitable for military unmanned underwater vehicles.

The invention relates to a flap wing underwater and water surface propeller, a navigator and a propelling method. The flap wing underwater and water surface propeller comprises a round base and four flap wings, wherein the four flap wings are arranged on the base and have the same size, each flap wing is sequentially and movably connected onto the base through horizontally installed attack angle shafts and vertically installed swinging and flapping shafts, in addition, each flap wing can singly and respectively rotate around the located attack angle shafts and swinging and flapping shafts for forming a two-freedom rotating mechanism, and the four swinging and flapping shafts are set into the X-shaped layout in an axial symmetry way by using the center line of the base as the symmetry axis. Compared with the conventional propeller propelling mode, the flap wing propelling mode provided by the invention has the advantages that the fluid performance is more complete, and the propelling efficiency is improved. Because the special turning maneuvering action, the turning radius much smaller than that of the propeller propelling can be realized, and the maneuverability performance of the underwater navigator is obviously improved. The flap wing propelling mode applied to the underwater navigator has smaller modification on the structure of the underwater navigator, in addition, the propelling efficiency and the maneuverability are better, and better application prospects are realized.

The invention relates to a dual-front axle vehicle steering system comprising a steering gear, a plumbing arm, a first front axle drag link, a transition pull bar, a power-assisted cylinder assembly, a second front axle drag link, a first front axle and a second front axle; the steering gear is arranged on a frame vertical beam through a steering gear rack; the top of the plumbing arm is connected with the steering gear, and the bottom of the plumbing arm is movably connected with the front end of the transition pull bar; the rear end of the transition pull bar is movably connected with the power-assisted cylinder assembly; the front end of the first front axle drag link is movably connected with the power-assisted cylinder assembly, and the rear end is movably connected with the first front axle; the front end of the second front axle drag link is movably connected with the power-assisted cylinder assembly, and the rear is movably connected with the second front axle. The power-assisted cylinder assembly can provide steering assist power, can serve as the transition rocking arm, needs no piston, and can bear more pressure, thus outputting bigger steering moment; the dual-front axle vehicle steering system is long in service life, and good in reliability.

The invention provides a steering-by-wire system and a control method thereof. The steering-by-wire system comprises a steering wheel, a first steering column, a first torque steering angle sensor, aroad sense feedback unit, an electronic control unit, a second steering column, a motor booster unit, a hydraulic booster unit and a circulating ball type hydraulic booster steering device, wherein the motor booster unit comprises a first motor steering booster unit and a second motor steering booster unit, the hydraulic booster unit comprises an electric hydraulic pump, an oil box, an electromagnetic directional valve and an oil pipe, the steering wheel is connected with the input end of the first steering column, the first torque steering angle sensor is arranged on the first steering columnin a sleeving manner, the road sense feedback unit is connected with the output end of the first steering column, the motor booster unit is connected with the input end of the second steering columnand is connected with the circulating ball type hydraulic booster steering device through the second steering column, the electric hydraulic pump, the oil box and the electromagnetic directional valveare connected in sequence, and the first torque steering angle sensor, the road sense feedback unit, the motor booster unit, the electric hydraulic pump and the electromagnetic directional valve areconnected with the electronic control unit.

The patent of the invention discloses an aircraft with a double-fuselage tandem wing vertical take-off and landing layout, and particularly relates to the technical field of aviation aircrafts. The aircraft with a double-fuselage tandem wing vertical take-off and landing layout comprises two fuselages which are arranged at an interval, and an engine is arranged on each fuselage; a front tandem type wing and a rear tandem type wing which are distributed at an interval are arranged on the two fuselages; an electric tilting rotor wing arranged at one end of the front tandem type wing is also symmetrically arranged on each fuselage; a generator is connected between each electric tilting rotor wing and each engine, the generators are electrically connected with the engines, the rear tandem typewing is provided with a first lift fan located between the two fuselages and a sliding flow rudder located below the first lift fan, and each fuselage is provided with a vertical fin located at one end of the rear tandem type wing. By the adoption of the technical scheme, the problem that an existing aircraft cannot stably and vertically take off and land under severe weather conditions is solved, and the aircraft can fly under extreme weather conditions.

The invention discloses an engineering vehicle and a steering mechanism and a steering control system thereof. One end of a first steering oil cylinder and one end of a second steering oil cylinder are hinged to the middle of a front axle housing, and the other ends of the first steering oil cylinder and the second steering oil cylinder are hinged to a first wheel steering knuckle arm and a secondwheel steering knuckle arm respectively; the first end of the first wheel steering knuckle arm is connected with a front axle transmission mechanism; the second end of the first wheel steering knuckle arm is hinged with the first end of a first steering pull rod; the second end of the first steering pull rod is hinged with the lower end of a first pull rod steering rocker arm and the first end ofthe front axle adjustable steering pull rod; the second end of the second wheel steering knuckle arm is hinged with the first end of the second steering pull rod; the second end of the second steering pull rod is hinged with the lower end of a second pull rod steering rocker arm and the second end of the front axle adjustable steering pull rod; and the upper ends of the first pull rod steering rocker arm and the second pull rod steering rocker arm are hinged to the front axle housing. The three steering pull rods are adopted, the two ends of each steering pull rod are non-adjustable, the middle of each steering pull rod is adjustable, a steering structure can be conveniently adjusted at a time, and toe-in values of a front axle and a rear axle are adjusted.

The invention relates to a double-front-axle automobile steering system which comprises a steering device, a plumbing arm, a first front axle straight pull rod, a transition pull rod, a power cylinder assembly, a rocker arm, a second front axle straight pull rod, a first front axle steering knuckle arm, a second front axle steering knuckle arm, a first axle and a second axle. According to the technical scheme, through engaged cooperation of a piston and the rocker arm of the power cylinder, a piston rod and a supporting structure in the prior art are omitted, and through movement of the piston, the rocker arm matched with the piston in a toothed mode rotates left or right to provide power for steering of the second front axle, the power cylinder structure is small in mounting space and meanwhile achieves the effect of a transition rocker arm, and the number of parts in the steering system is decreased. By omitting the piston rod, the power cylinder can bear larger pressure to output larger steering torque, the service life is long, and reliability is good.

The invention discloses an electric push rod power-assisted steering device which comprises a steering pull rod with a tension-compression stress sensor, an electric push rod and a power-assisted steering controller. The tension-compression stress sensor is mainly used for detecting the size and the direction of force applied to the steering pull rod and mounted in the middle of the steering pullrod in a threaded connection manner. One end of the electric push rod is mounted at the middle right end of a steering linkage rod, and the other end of the electric push rod is mounted at the middleleft end of a front axle in a single-rod offset manner. The power-assisted steering controller mainly comprises a 51 single chip microcomputer, a signal acquisition and processing circuit, an electricpush rod driving circuit, a monitoring circuit, a protecting circuit and the like and is used for controlling expansion of the electric push rod and accordingly realizing power-assisted steering according to acquired stress of the steering pull rod. Energy consumption can be effectively reduced, environmental pollution is reduced, the device can adapt to various running conditions, steering characteristics of a vehicle are improved, and the device has good low-temperature working performance.

The invention discloses a two-factor linkage type trigger switch device, and belongs to the technical field of control switches. The device comprises a torque loader, a linked switch assembly and a corner trigger, wherein the moment loader comprises an action cylinder shell, a medium cavity and a moment loading piston are arranged in the action cylinder shell, and a piston rod of the moment loading piston is connected with the linked switch assembly; the piston rod is sleeved with a piston reset spring, and a medium cavity of the torque loader is communicated with an external pressure source; the linked switch assembly comprises a fork arm and a poke rod hinged to the fork arm, the left side of the poke rod is connected with trigger rods extending up and down, the two trigger rods are correspondingly provided with trigger switches respectively, and the left side of the poke rod is connected with a linked switch reset spring; the corner trigger comprises an oval rotating disc and is provided with a rotating side face capable of being in smooth contact with the pulley. The anti-rollover device can assist in effectively playing an anti-rollover role, and has the advantages that accidental triggering is avoided, rollover early warning can be conducted, automatic resetting is achieved, and the anti-rollover device can be widely applied to different vehicle types.

The invention discloses a flow guide cover device capable of swinging angle, which comprises a flow guide cover base, a screw shaft, a flow guide cover, a connecting rod and a driving motor. A throughhole is arranged in the middle of the flow guide cover base. A lead screw shaft penetrate through that mounting through hole and is rotatably mount on the base of the flow guide cover, a driving gearis arranged at the front end of the lead screw shaft, and a lead screw mother is sleeve at the rear end of the lead screw shaft; The front end of the air guide cover is articulated with the base of the air guide cover, one end of the connecting rod is articulated with the rear end of the air guide cover, and the other end is articulated with the screw female of the rear end of the screw shaft; Asthat drive motor is drivingly connected with the drive gear, the technical problem that the angle of the air guide cover is not adjustable can be solved.

The invention provides a water rudder of an amphibious aircraft. The water rudder comprises a water rudder body (3), a fish-shaped rectifying tail (5) and an upper end face flow baffle (6). The water rudder main body (3) is in a wing shape; the upper end face flow baffle (6) is in a direct trapezoid shape and is arranged on the upper end face of the water rudder body (3). And the fish-shaped rectifying tail (5) is an isosceles right triangle prism and is arranged at the tail edge of the water rudder main body (3). The structure is simple, large steering torque can be provided for the amphibious aircraft when the amphibious aircraft slides on the water surface at a low speed, and efficiency can be increased by 30% or above under the target working condition.

The invention relates to a steering system for a double front axle automobile, comprising a steering gear, a drop arm, a first front axle straight tie rod, a transition tie rod, a booster cylinder assembly, a second axle straight tie rod, a first front axle and a second front axle; The booster cylinder assembly includes the booster cylinder and the rocker arm, and the tooth shape of the booster cylinder and the rocker arm meshes. The booster cylinder of this technical solution cancels the piston rod and supporting structure in the prior art through the meshing and cooperation between the piston and the rocker arm, and through the movement of the piston, the rocker arm that cooperates with the piston tooth shape turns left or right The power cylinder provides power assistance for the steering of the second front axle. The installation space of this power cylinder structure is small, and it also acts as a transitional rocker arm, reducing the number of components in the steering system. By canceling the piston rod, the booster cylinder can withstand greater pressure, thereby outputting greater steering torque, and has a long life and good reliability.

The invention discloses a steering system which comprises a frame and wheels arranged at the lower end of the frame. The frame is provided with a steering wheel turning angle input device, and the steering wheel turning angle input device is provided with a circulating ball mechanism; the circulating ball mechanism is provided with a main hydraulic control cylinder; the main hydraulic control cylinder is arranged at the wheel arranging end of the frame and provided with a steering rocker arm; the steering rocker arm is arranged between the wheels. In this way, the steering system has the advantages that the structure is simple, and the steering torque of the wheels is increased; more labor is saved, and the phenomenon that teeth are prone to be damaged due to the fact that the steering input force brought by a gear mechanism is large can be effectively avoided.

A micro-robot comprises a robot framework and a structural layer located below the robot framework. The robot framework comprises a trunk with a supporting structure, the structural layer comprises a front leg part, a rear leg part, a left electrostatic force adsorption foot pad, a right electrostatic force adsorption foot pad, a left connecting thin film and a right connecting thin film, the parts, making contact with the ground, of the front leg part and the rear leg part are in arc shapes, and the left electrostatic force adsorption foot pad and the right electrostatic force adsorption foot pad are connected to the two sides of the arc-shaped part of the front leg part through the left connecting thin film and the right connecting thin film correspondingly. The micro-robot can realize flexible steering by virtue of the design of the arc leg structure and electrostatic force adsorption foot pads under the condition of bearing a load, and can realize a very small turning radius. The micro-robot is flexible in steering control, high in speed and high in loading capacity.