186results about How to "Realize the steering function" patented technology

The invention relates to a multifunctional intelligent medical guardian wheelchair which comprises a wheelchair body, an industrial control computer, a camera, a laser positioning sensor, a bottom core control module, an environment sensor, an electric energy control module, a tablet computer, a manipulator arm, a manipulator arm operation module, a first motor, a second motor, a synchronous driving control module, a remote information inquiring terminal, a autonomous navigation system and a video voice communication module. The first motor and the second motor drive a left power wheel and a right power wheel respectively, the synchronous motor driving control module controls the motors, and the remote information inquiring terminal, the autonomous navigation system and the video voice communication module are connected with the tablet computer. The tablet computer is connected with the industrial control computer which is connected with the bottom core control module, the manipulator arm operation module is connected with the industrial control computer, and the synchronous motor driving control module is connected with the bottom core control module. The multifunctional intelligent medical guardian wheelchair integrates multiple functions of moving, serving, interacting and guardian and the like, and is capable of alleviating burden of taking care of solitude elder people and patients with quarantined diseases in the society.

The invention provides an all-directional horizontal-posture stair climbing robot. The stair climbing robot comprises a lower table plate and an upper table plate above the lower table plate; at least two sets of lower table plate lifting mechanisms which drive the lower table plate to ascend and descend are arranged below the lower table plate; at least four sets of upper table plate lifting mechanisms which drive the upper table plate to ascend and descend are arranged below the upper table plate. The stair climbing robot is characterized in that the lower table plate and the upper table plate are arranged in a front-back and staggered manner in the horizontal direction; a support rotating plate is arranged between the lower table plate and the upper table plate; rectilinearly-moving units are arranged at the bottom of the support rotating plate; the bottoms of the rectilinearly-moving units are arranged on the lower table plate; a rotating mechanism is arranged on the upper table plate and fixedly connected with the support rotating plate. The invention further provides a posture adjusting method, a zero-radius turning method, a stair climbing method and a rectilinear walking method for the stair climbing robot. According to the invention, the deficiencies of the prior art are overcome; the stair climbing robot can adapt to various ground conditions, can flexibly realize no-radius turning of any angle, and is favorable in maneuverability, simple in structure and ingenious in design.

The invention relates to the field of electromechanical systems and motor vehicle application, and in particularly relates to a 5-ton-class circulating ball type dual-mode electric power steering device. The electric power steering device comprises a steering device housing assembly, an input shaft and screw assembly, a sector shaft assembly, a supporting base assembly, a turbine, a worm, an inner end cap assembly, a rotating angle and torque sensor, an outer end cap assembly, a plum connecting sleeve assembly and a motor assembly. A motor serves as a power source; power is transmitted to the input shaft and screw assembly via a worm gear and the worm, and the input shaft and screw assembly outputs torque and angle displacement via a sector shaft. The 5-ton-class circulating ball type dual-mode electric power steering device has two control modes of angle (position) and torque (assisting power).

A polyhedral rolling mechanism is characterized by comprising an upper platform, a lower platform, a first branched chain, a second branched chain, a third branched chain and a fourth branched chain. Structures and sizes of the upper platform and the lower platform are identical, and structures and sizes of the first branched chain, the second branched chain, the third branched chain and the fourth branched chain are identical; the upper end of the first branched chain and an A1 side of the upper platform are fixed, the lower end of the first branched chain and a B1 side of the lower platform are fixed; the upper end of the second branched chain and an A2 side of the upper platform are fixed, and the lower end of the second branched chain and a B2 side of the lower platform are fixed; the upper end of the third branched chain and an A3 side of the upper platform are fixed, and the lower end of the third branched chain and a B3 side of the lower platform are fixed; the upper end of the fourth branched chain and an A4 side of the upper platform are fixed, and the lower end of the fourth branched chain and a B4 side of the lower platform are fixed; and the polyhedral rolling mechanism is formed through the connection. According to the polyhedral rolling mechanism, a closed chain structure is utilized, the robot rigidity is enhanced, loading capacity is improved, structure and control are simple and moving and veering in a plane can be achieved.

An actively guiding robot for endoscopy is composed of a tactile sensation sensor in the front, a knuckle mechanism at its middle part whose main unit is a cylindrical rubber ring, a creeping flexible moving mechanism at its tail part, and an endoscope arranged in its central through hole. Gas is used as its power source. Said tactile sensation sensor can measure the action force between robot and inner surface of tract in human body to guide said knuckle and flexible moving mechanisms. Its advantages are reducing the pain of patient, low perforation possibility, and high efficiency.

The invention discloses an in-situ steering wheel type robot base mechanism, which comprises three parts: a machine frame assembly, a wheel system assembly and a steering and moving assembly, wherein the wheel system assembly is arranged under the machine frame assembly, and the steering and moving assembly is used for driving the wheel system assembly to steer and transversely move. When a carrier is arranged on a machine frame, the movement of the wheel system assembly is transferred by a transfer element, and the driving force of the transfer element is realized through the cooperation of two motors, four synchronous belts and eight belt wheels in the steering and moving assembly, so the stable steering and moving of the machine frame is ensured. The steering of the base mechanism is completed through being driven by a first step motor, the movement of the base mechanism is completed through being singly driven by a second step motor, the steering and moving functions can be realized by the base mechanism only through the two motors, the two kinds of movement can be completely uncoupled, and the control is simple.

The invention provides a modularized multiped walking robot capable of realizing functional shift between hands and feet, which comprises a stander, a first foot unit, a second foot unit, a third foot unit, a forth foot unit and a controller, wherein the first foot unit, the second foot unit, the third foot unit and the forth foot unit are distributed at the left side and the right side of the stander and respectively consists of a hip unit, a thigh unit and a shank unit. The modularized multiped walking robot capable of realizing functional shift between hands and feet is formed by the assembly of modularized structures, has strong spreading capability, and can greatly reduce the designing and machining difficulty. Each combinable joint of the robot adopts an end driving device with two output shafts, the end driving device only needs to be connected with a gear to drive two connecting discs so as to realize the steering function, thereby being capable of reducing connecting parts, being capable of adopting meshed gear pairs which are meshed with each other one by one at the middle driving device, reducing the precision of the installation position of the gear, and reducing the machining and assembling difficulty.

The invention discloses a gait rehabilitation training device, and belongs to the technical field of medical instruments. The gait rehabilitation training device is characterized by comprising a bearing mechanism (1) and a gait training mechanism (2); the bearing mechanism (1) includes a bearing frame for fixing a body of a user, and a driving mechanism for driving the bearing frame to walk; the gait training mechanism (2) includes mechanical legs arranged on two sides and a power mechanism; each of the mechanical legs includes a thigh rod (16), a calf rod (19) and a pedal (20); the upper end of the calf rod (19) is rotationally connected with the thigh rod (16), and the lower end is rotationally connected with the pedal (20); the upper end of the thigh rod (16) is rotationally connected with the power mechanism; and the power mechanism is connected with the thigh rod (16), the calf rod (19) and the pedal (20) at the same time. The gait rehabilitation training device can really stimulate hemiplegic extensor to move, stimulates active selection control of patients, and achieves greater help on clinical application.

The invention relates to the technical field of guide transport equipment and discloses an AGV steering wheel drive system module. The AGV steering wheel drive system module comprises a drive unit, a speed feedback unit, a transmission unit, an angle feedback unit and a drive wheel. The drive unit, the speed feedback unit and the angle feedback unit are all arranged on an installation board. One end of the drive unit is connected with the speed feedback unit through a chain wheel mechanism. The speed feedback unit is connected with the transmission unit through a linkage shaft on the connected chain wheel mechanism. The transmission unit is connected with the drive wheel. The linkage shaft is provided with a steering mechanism connected with the angle feedback unit. By the adoption of the AGV steering wheel drive system module, drive power transmission efficiency is high, the accuracy of signals fed back through an encoder and an angle sensor is high, the space occupied by drive steering operation is small, machining cost is low, and installation and maintenance are easy.

The invention discloses a hybrid type front wheel active steering system and belongs to the technical field of automobile steering. The hybrid type front wheel active steering system comprises an input shaft, an output shaft, double-row planetary gears, a planet carrier, a steering wheel, a road feeling motor, a road feeling feedback worm wheel, a steering execution motor, a steering gear and an electronic control unit, wherein the steering wheel is arranged at one end of the input shaft; the steering gear is arranged at one end of the output shaft; the double-row planetary gears are arranged in the planet carrier, a first planetary gear of the double-row planetary gears is meshed with a gear on the end part of the input shaft and a second planetary gear of the double-row planetary gears is meshed with a gear on the end part of the output shaft, so that the input shaft and the output shaft are coaxially connected; a circumferential gear on the planet carrier is meshed with a worm of the steering execution motor; the road feeling feedback worm wheel is fixed on the input shaft and is meshed with the worm of the steering execution motor; and the steering wheel and a turning wheel of the system have real-time controllable force transmission characteristic and angle transmission characteristic, and a mechanical steering state can be automatically recovered when the system is in failure.

The invention discloses a compound parallel-connection four-foot wall climbing mechanism, which comprises a main wall climbing device an auxiliary wall climbing device, wherein the main wall climbingdevice comprises a machine body upper board, four telescopic foot components and a main driving component; the four telescopic foot components are in sliding connection to two sides of the machine body upper board; the main driving component drives four telescopic foot components to synchronously carry out periodic telescopic movement; and the auxiliary wall climbing device comprise four auxiliaryfoot components and an auxiliary driving component, wherein the four auxiliary foot components are in sliding connection to the bottom of the machine body upper board, and the auxiliary driving component drives the four auxiliary foot components to carry out periodic reciprocating movement relative to the main wall climbing mechanism and change a rotation angle formed between the main wall climbing mechanism and the auxiliary wall climbing device to carry out steering motion. The compound parallel-connection four-foot wall climbing mechanism to which the invention relates to has an obstacle crossing ability, the size of each foot and the volume and the weight of the wall climbing mechanism do not need to be obviously increased, the application range of the wall climbing mechanism is enlarged, and the telescopic foot components can realize synchronous stretching and retracting, and have the functions of climbing and steering.

The invention provides a wheel-leg composite mobile robot which comprises mechanical legs, an upper trunk, a lower trunk and a waist rotating motor, and the upper trunk and the lower trunk are connected through the waist rotating motor. The multiple mechanical legs are connected in series through multiple connecting rods and connected with the upper trunk and the lower trunk respectively. The waist rotating motor can achieve multi-directional steering of the robot in a wheel type moving mode and a leg type moving mode. In the six wheel legs of the robot, three legs are connected with the uppertrunk, the other three legs are connected with the lower trunk, the three legs connected with the same trunk are arranged in an equilateral triangle shape, and the equilateral triangle formed by thewheel legs connected to the two trunks is congruent. The six-wheel-leg composite mobile robot with the waist steering mechanism is few in drive, simple in structure and good in maneuvering performance, and can meet the requirements for movement and detection under complex terrain conditions.

The invention relates to a remote control type universal wire clamp comprising an operating rod, a horizontal rod, a connecting rod, a supporting rod, a chuck, and limiting frames. The top end of the operating rod is connected with one end of the horizontal rod. The other end of the horizontal rod is connected with one end of the connecting rod through a rotating shaft. The other end of the connecting rod is connected with one end of the supporting rod through a rotating shaft. The horizontal limiting frame is arranged between the horizontal rod and the connecting rod. The vertical limiting frame is arranged between the connecting rod and the supporting rod. The remote control type universal wire clamp of the invention has higher safety index, and can adapt to any cunning angle of a lead conductor.

The invention discloses a vehicle steering-by-wire system, a fault-tolerant control method and a fault diagnosis method. A steering actuator of the system is composed of a redundant electro-hydraulicpower-assisted steering system module and a wheel hub motor differential steering system module. The system can realize a differential steering function and realize a power-assisted steering functionthrough the redundant electro-hydraulic power-assisted steering system module, the problem that a vehicle cannot steer due to fault of a wheel hub motor is avoided, and the driving safety of the vehicle is ensured.

The invention provides a sea observation robot. The sea observation robot is characterized in that a hull assembly comprises a main hull, a solar power generation system and a hull stationary assembly; a drive device comprises a main hull power acquisition windsurfing assembly, a wind rudder assembly for controlling the windward angle of the main hull and a water rudder assembly for controlling the heading of the main hull; and a communication system comprises a communication antenna, a GPS and a controller. The main hull uses wind energy as a direct driving force, the wind rudder assembly is used for adjusting a windsurf in the favorable windward angle, the water rudder assembly controls the main hull to steer, and the controller is used for utilizing the positioning information of the communication system to realize the autonomous cruise control of the sea observation robot and sailing along a predetermined trajectory. The hydrological information obtained by a detecting sensing assembly is transmitted to a ground station by the controller through the communication system. Carrying an own energy to drive is not needed, and the mobility and the cruising ability are good.

The invention provides an ornithopter wing aerodynamic differential device and a control method thereof to actively control aerodynamic forces of ornithopter wings. The ornithopter wing aerodynamic differential device comprises a processor, two sensors, two steering engines and two swing arms. The ornithopter wing aerodynamic differential device can actively control the aerodynamic forces of the wings by controlling pitching movement of opposite incoming flows generated in the flapping process of the wings and controlling the amplitude of the movement of the wing on the two sides, so that on one hand, aerodynamic force difference caused by stiffness difference between the wings in the manufacturing process can be eliminated, and on the other hand, the flying direction can be changed through the aerodynamic force difference between the two wings so as to substitute the role of a rudder and reduce the weight of an ornithopter.

The invention relates to a front suspension system for a motorcycle, which comprises a frame and a front wheel positioned in front of the frame. The front wheel is fixedly connected with a steering knuckle through a front wheel hub component, the steering knuckle is respectively connected with a steering mechanism and a shock-absorbing mechanism, the shock-absorbing mechanism comprises a rocker only transversely arranged on a single side of the front wheel, the front of the rocker is connected onto the steering knuckle, and the rear of the rocker is connected with the frame through a shock absorber. The front suspension system separates a steering function from supporting and shock-absorbing functions, is capable of absorbing and releasing impact of a road surface on the front wheel to a maximum degree, so that shock of steering handlebars and a motorcycle body is reduced, and driving comfortableness and maneuverability of the motorcycle are improved.

The invention relates to the technical field of oilfield chemistry and oil extraction, and discloses an oilfield profile control agent and a preparation method thereof. The oilfield profile control agent comprises the following components in parts by mass: 28-62 parts of polyester polyol, 4-42 parts of hexamethylene diisocyanate, 2-41 parts of chloroprene rubber, 0.01-3 parts of a catalyst, 2-45 parts of a blocking agent, 1-31 parts of a solvent and 1-20 parts of a plasticizer. A polyurethane prepolymer is prepared by the polymerization of the polyester polyol and the hexamethylene diisocyanate, and then a blocking reaction is carried out on the blocking agent with the polyurethane prepolymer, the solvent, the chloroprene rubber, the plasticizer and the catalyst, so that the oilfield profile control agent provided by the invention is obtained. The product is in a liquid state at normal temperature, can fully enter into the deep micro pores of a stratum, and gels and expands in the stratum; the gelling temperature is controllable, so that the diversion function of the profile control liquid flow of a deep oil reservoir can be realized; the flood conformance volume is increased; thewater flooding effect is improved; and the recovery efficiency is improved.

The invention provides an adjustable intelligent bridge. The invention has a simple structure and good heat dissipation. It can be assembled flexibly according to the actual situation of the site terrain. It can change the orientation and length of multiple angles, avoid obstacles, and can complete multiple angles. Adjustment to realize the steering function in the cable line, the invention does not need on-site measurement, can be directly manufactured in factory standardization, easy processing, mass production, low cost, beautiful appearance, easy installation; through rectangular cooling holes, cooling fans, The heat dissipation efficiency is improved, the heat dissipation effect is good, and the heat generated by the cable can be greatly reduced; the sand interlayer is set in the middle of the installation plate, the side plate, and the support frame to achieve the effect of fire prevention and flame retardant; through the PLC controller and the temperature alarm. Intelligent control of bridge heat dissipation.

The invention relates to a worm steering type rotary speed reducer for multi-point drive tracking. The speed reducer comprises a plurality of worm and gear rotary driving devices (1) arranged front and back at intervals, wherein each worm and gear rotary driving device (1) comprises a base (11), each base (11) comprises a shaft shell (111) and a base ring (112), a worm (12) is arranged in each shaft shell (111), a gear shaft (13) is arranged in each base ring (112), the worms (12) mesh with the gear shafts (13), and a main beam (5) is arranged between the gear shafts (13) of every two adjacentworm and gear rotary driving devices (1). According to the speed reducer, a mode that the worm and gear rotary driving devices and gear boxes are used in combination is adopted, the gear boxes are driven to output transmission power through bevel gears installed on the worms, and parallel driving of the plurality of worm and gear rotary driving devices is achieved.

The invention provides a solar orienting line condensation desert surface hardening system which comprises a condenser, a horizontal reflector, a parabolic reflector, a shading reflector, a computer, a sun position sensor, a horizontal sand surface and the like. The condenser is a parallel light condenser and is used for carrying out accurate azimuth angle and altitude angle tracking on the sun; output parallel condensed light rays are all irradiated to the horizontal reflector; and by the reflection of the horizontal reflector and the focusing of the parabolic reflector, condensed light rays which are positioned on the horizontal sand surface and have the same radiation intensities are formed. According to the system, in the process of carrying out melting and hardening on the surface of a desert, both the motion energy and the energy for melting and hardening the sand surface are from the solar energy and the fossil energy is not consumed; the utilization time of the solar energy can be longer and the condensing utilization mode can be more reasonable; the line focusing is adopted, the efficiency of carrying out melting and hardening under the control of the computer is higher and the quality of carrying out melting and hardening under the control of the computer is better; and the unmanned automatic operation can be implemented, so that the manual cost is further reduced.

The invention discloses a motorcycle type robot comprising a frame, a front wheel mechanism, a steering gear, a rear wheel mechanism, a rear wheel driving mechanism and a balance mechanism, wherein the front wheel mechanism and the rear wheel mechanism are respectively arranged at the front end and the rear end of the frame; the front wheel mechanism and the rear wheel mechanism are both rotatablyconnected to the frame; the front wheel mechanism is connected with the steering gear in a transmission manner; the rear wheel driving mechanism is connected with the rear wheel mechanism in a transmission manner; and the balance mechanism is arranged on the frame. The motorcycle type robot integrates a motorcycle with the balance mechanism which can allow the entire motorcycle type robot to be in an upright state based on the principle of an inverted pendulum and momentum transfer, thereby reducing the widths of front wheels and rear wheels and improving the performance of passing through narrow environments.

The invention discloses a multifunctional self-help wheelchair, belongs to automation living facilities, and solves the technical problems that the disabled is mobility-handicapped, a common wheelchair cannot achieve walking up and down stairs and automatic lifting, and the like. The multifunctional self-help wheelchair mainly comprises a seat mechanism part, a steering mechanism part, a drive mechanism part and a lifting mechanism part, wherein the seat mechanism part comprises a wheelchair seat, a wheelchair backrest, wheelchair handrails and the like; the steering mechanism part comprises front wheels, a steering shaft, a steering motor, a steering gear, belt pulleys, a drive motor, an electrical apparatus control system and the like; and the lifting mechanism part comprises a hydraulic oil cylinder, a hydraulic control element, a hydraulic control circuit and the like. A user can manipulate a rocker and a button in hands to control the steering mechanism part to achieve flexible steering of the self-help wheelchair, and hereby the steering function of the wheelchair is achieved. At the same time, the user can also manipulate the rocker and the button in hands to control the drive part to go forward and draw back automatically, and can carry out mutual conversion of a flat ground drive mode and an up-down stair mode to achieve automation functions of the self-help wheelchair. In addition, the user can also control automatic ascending and descending functions of the wheelchair through the button to achieve the automatic ascending and descending of a human body, and thus the range of activity of mobility-handicapped people is greatly enlarged. The multifunctional self-help wheelchair is manly used in families and public service agencies of hospitals, homes for the aged and the like.

The invention discloses an omni-directional intelligent material carrier and an operation method thereof. The carrier comprises a walking mechanism unit, a rotating mechanism unit, a grabbing and dropping mechanism unit and an intelligent control unit; the walking mechanism unit comprises a frame, omni-directional wheels and a motor, and the motor controls the direction of the frame by driving thespeed of the omni-directional wheels; the rotating mechanism unit comprises an electric rotary table arranged on the frame, and is used for rotating to determine the grabbing direction; the grabbingand dropping mechanism unit is arranged on the electric rotary table and used for clamping and grabbing; the intelligent control unit is arranged on the frame and connected with the motor, the rotating mechanism unit and the grabbing and dropping mechanism unit separately; by means of mutually orthogonal ranging modules in two directions, information is collected and analyzed and processed througha single-chip microcomputer, and then the rotating mechanism unit and the grabbing and dropping mechanism unit are controlled to achieve grabbing. The carrier is simple in structure, convenient to use, and suitable for cargo carrying; by means of a clamping device, cargoes can be directly clamped and carried, thus the cargo carrying efficiency is effectively improved, and the cargo transportationcost is lowered.

The invention relates to a swing arm middle-arranged-type double-axle steering system comprising a front axle steering unit, a rear axle steering unit and a longitudinal pull rod. The front axle steering unit comprises a power steering gear, a front axle swing arm, a front axle left pull rod, a front axle right pull rod, a front axle left trapezoid arm and a front axle right trapezoid arm. The rear axle steering unit comprises a follower, a rear axle swing arm, a rear axle left pull rod, a rear axle right pull rod, a rear axle left trapezoid arm and a rear axle right trapezoid arm. The power steering gear and the follower are fixed on a vehicle frame, the front axle left trapezoid arm, the front axle right trapezoid arm, the rear axle left trapezoid arm and the rear axle right trapezoid arm are fixedly connected with a front axle left steering knuckle, a front axle right steering knuckle, a rear axle left steering knuckle and a rear axle right steering knuckle correspondingly. The input end of the power steering gear is connected with a steering wheel through a steering driving shaft and an angle driver. The swing arm middle-arranged-type double-axle steering system has the advantages of being simple in structure, convenient to use, large in output torque, small in occupied space, large in turning angle and high in wheelbase adaptation and can meet the using requirement of a wheel large bouncing amount heavy chassis.

The invention relates to a manual comb carrier for mounting ammunition at a low mounting point, which belongs to the field of military equipment, and particularly relates to a traveling apparatus for manually mounting military aircraft ammunition. The traveling apparatus mainly consists of a traction rod, a rear axle, a hand-rocking hydraulic pump, a double-acting hydraulic cylinder, a hoisting arm, a working platform, a front wheel and a frame. The height hoisting of the hoisting arm is realized in a way of manually operating the hand-rocking hydraulic cylinder so as to drive the working platform and the ammunition fixed on the working platform to be hoisted in the vertical direction, and a function for transporting the ammunition in a short distance can be realized. The travel apparatus can be used for mounting and disassembling ammunition of 500kg or less on a low ammunition mounting point (altitude is 150mm to 1500mm) military aircraft. The apparatus has the characteristics of light weight, simple structure, simple and convenient operation and low ammunition mounting height, can realize the four-degree-of-freedom attitude adjustment of the ammunition of 500kg or less, has good universality and can mount and fix various ammunition and brackets of the ammunition.

The invention relates to a moveable wheel assembly which comprises a wheel, a moveable wheel installing leg (2) provided with an absorber, a steering stretching driving device, a stretching driving device for rotation of the leg and a stretching arm. Both ends of the stretching driving device for rotation of the leg are respectively hinged to the moveable wheel installing leg and a first arm section of the stretching arm. In addition, the invention further provides a vehicle comprising the moveable wheel assembly. After the moveable wheel assembly provided by the invention is installed on the vehicle, vibration attenuating and steering functions are effectively realized, and the moveable wheel assembly is driven by the stretching driving device for rotation of the leg and the stretching arm so that the height position and transverse position of the wheel are changed. According to the moveable wheel assembly provided by the invention, the wheel position is conveniently adjusted when the vehicle encounters a barrier so that the vehicle is easy to escape from difficulty. The moveable wheel assembly provided by the invention is in particular applied to a guiderail cleaning vehicle for providing possibility and support for inter-line operation, so that contradiction between sanitary work and traffic jam is solved conveniently.

The invention discloses a semitrailer steering device with steerable wheels. The semitrailer steering device comprises wheel axles, steerable wheel assemblies and a driving system, wherein a mounting base is arranged in the middle of each wheel axle; each mounting base comprises a mounting bottom plate through which a vertical pin shaft penetrates and a mounting top plate through which the vertical pin shaft penetrates; each vertical pin shaft is hinged to a steering base; each steering base comprises a transverse plate and a longitudinal plate, which are integrated into a whole; the middle of each transverse plate and the front part of the corresponding longitudinal plate are hinged to the corresponding vertical pin shaft; two ends of the transverse plate which is close to one side of the driving system are respectively hinged to output ends of steering driving oil cylinders; every two adjacent transverse plates are connected together through a longitudinal pull rod; the longitudinal pull rods are in staggered arrangement; two connecting parts are arranged at the rear edge of each longitudinal plate; each connecting part is connected with the corresponding steerable wheel assembly through a transverse pull rod and a steering arm. When the wheel axles deviate while the semitrailer runs, only the steering driving oil cylinders are controlled so as to align the foremost wheel axle, so that the wheel axles behind the foremost wheel axle can be aligned through the longitudinal pull rods; the semitrailer steering device is suitable for semitrailers which transport wind turbine tower cylinders and run on curved mountain roads.

The invention provides a steering bracket which comprises a bracket body, an adjusting disc, an adjusting base, an elastic piece, a pressure guide plate, a first connection piece, a steering disc, a base and a second connection piece. The bracket body comprises a first installation plate and a second installation plate which are arranged at a certain angle, and the first installation plate comprises a first installation face and a second installation face which are oppositely arranged. The first end face of the adjusting disc is fixedly connected with a lamp head, the second end face of the adjusting disc is matched with and meshed with the adjusting base, and the adjusting base is fixed to the first installation face. The first connection piece sequentially penetrates through the pressure guide plate, the elastic piece, the first installation plate, the adjusting base and the adjusting disc and connected to the lamp head in a threaded mode. The elastic piece is compressed between the second installation face and the pressure guide plate. The second connection piece sequentially penetrates through the second installation plate and the steering disc and connected to the base in a threaded mode. The first end face of the steering disc is fixed to the second installation plate, and the rough surface of second end face of the steering disc abuts against the base. The steering bracket is simple in structure and convenient to use, and operation workload is lowered. Furthermore, the invention further discloses a lamp.

The invention relates to a fully-active suspension system which comprises energy accumulators, electronic gear pumps, power cylinders, swing arms, a control system and steering knuckles, wherein the front end of each steering knuckle is cylindrical and the rear end of each steering knuckle is of a plate-like structure; a hub motor stator of each wheel is fixedly connected with the cylinder of eachsteering knuckle; the plate-like structure of each steering knuckle is fixedly connected with the side of one end of each swing arm; the upper surface of one end, connected with a hub, of each swingarm is connected with each power cylinder through a ball joint; the other end of each swing arm is connected with a vehicle body through a ball joint; each power cylinder communicates with a high-pressure oil outlet of each electronic gear pump through a second oil pipe; a low-pressure oil inlet of each electronic gear pump communicates with each corresponding energy accumulator through a first oil pipe; and the control system is connected with the electronic gear pumps through control lines. All-terrain road driving of small-sized vehicles such as logistics vehicles and the like is realized,and efficient vibration suppression and vibration absorption can be achieved.