56results about How to "Solve the steering problem" patented technology

The invention relates to a power driven system of the aircraft, which is characterized in that the power driven system comprises a power supply, a motor and a bearing support. The motor is vertically arranged in the bearing support by a bearing. Both the stator and the rotor of the motor are extending upwards and are respectively provided with propellers. The upper ends of the stator and the rotor where the propellers are arranged are coaxially sleeved, and the lower end of the rotor is fixed with a rotary disc after stretching out of the bearing support, an electromagnet with the magnetic pole part near the rotary disc is fixed-arranged outside the bearing support. When the motor is electrified, both the rotor and the stator drive the propellers to rotate to acquire power at the same time, and the power is transmitted to the frame by the bearing support to drive the aircraft to rise or advance. Meanwhile the electromagnetic moment between the electromagnet and the rotary disc is used to counteract the friction torque, and control the size of the electromagnetic moment to achieve the turning of the aircraft. The power driven system has the advantages of solving the problem of anti-torque of the propeller, satisfying the design requirements of miniature, simplification and lightness of the aircraft, and being beneficial to the popularization and manufacturing of the aircraft.

An arrangement scheme for the container dock features that the arranging direction of the containers in stack field is perpendicular to that of the containers on ship. Its system is composed of coast hoister, the low bridge unit consisting of track, flat trucks, and monkey for loading or unload of said flat trucks, the transfer carrier system consisting of track and transfer carrier, and the hoister for stack field.

The invention relates to a container terminal handling system which consists of a quayside container crane and a yard crane and uses a stereometric low-bridge transfer system and a ground transportation car system to carry out connection. The low-bridge transfer system consists of a low-bridge transfer subsystem, wherein, the low-bridge subsystem is provided with a low-bridge rail which consists of a low-bridge crane rail and a low-bridge platform lorry rail; a low-bridge crane is arranged on the low-bridge crane rail; a low-bridge platform lorry rail is arranged on the low-bridge platform lorry rail. The ground transportation car system consists of a ground transportation car rail which consists of a car running along the transportation car rail. The invention carries out transportation in a form with the rail, uses commercial power as energy during the whole process and provides the stereometric low-bridge transfer system and the ground transportation system to realize the stereo transportation, which also realizes high-efficiency energy saving, environmental protection and automation, effectively utilizes land resources and is the extension and development of the applicant to the patent of the invention (200510111464.0).

The invention relates to an omnibearing intelligent following trolley comprising a following trolley component and a mobile master component. The following trolley component consists of a power supply module, a display module, a motor drive module for driving a motor of the following trolley component, an ultrasonic transmitting module, an infrared radar transmitting module, a trolley wireless communication module, a trolley main control single-chip microcomputer module, and a steering engine control module for controlling rotation of the ultrasonic transmitting module and the infrared radar transmitting module. The mobile master component includes a power supply and charging module, an ultrasonic receiving module, an infrared radar receiving module, a master wireless communication module, and a master main control single-chip microcomputer module. With the ultrasonic wave and the infrared radar, the following trolley component can determine the relative positions of the following trolley component and the mobile master component accurately in all directions and thus can follow the mobile master component all the time at a fixed distance at a fixed angle; and a steering problem during following can be solved.

The invention relates to a lifting conveying device of a combined garlic harvester and belongs to the technical field of agricultural machinery. The lifting conveying device comprises a main rail mounting rack allowing a conveying rod chain to form an L-shaped loop and is characterized in that that a collecting hopper and a mounting rack rear side plate are mounted on the horizontal section of the L-shaped loop; the body of the conveying rod chain is parallel and looped roller conveying chains, paired rods which are distributed at intervals are mounted between the two roller conveying chains,the distance between every two adjacent paired rods is smaller than the size of garlic, and garlic-shifting retaining plates and weed-shifting retaining plates located in the loop and outside the loop are fixed on the rods; the section of each garlic-shifting retaining plate is formed by a retaining plate which extends inwardly and is provided with oblique guard boards on two sides, and each weed-shifting retaining plate is of a channel steel shape with two lateral walls extending outwards; the vertical section of the L-shaped loop is located on the outer side of a multi-way header, and a discharge chute for guiding fallen garlic to a lifting and soil cleaning conveying device is connected below the top of the L-shaped loop. The lifting conveying device has the advantages that the collecting and weed removing problem of the harvested garlic can be well solved; in addition, the device is compact in structure and capable of laying a good foundation for stable and reliable mechanical harvesting.

The invention discloses a high-power step-less variable transmission case for agricultural machinery, and the high-power step-less variable transmission case comprises an outer shell and an input shaft. The high-power step-less variable transmission case for the agricultural machinery further comprises a driving gear, a driven gear, a variable speed shift gear transmission mechanism, a steering clutch brake mechanism, a left steering transmission gear wheel and a right steering transmission gear wheel which are all arranged on the input shaft, wherein the input shaft is driven by a hydraulic step-less transmission HST (hypersonic transporter); the driving gear is engaged with the driven gear; the left steering transmission gear wheel and the right steering transmission gear wheel are bothin transmission connection with the steering clutch brake mechanism through gear engagement; the variable speed shift gear transmission mechanism is in transmission connection with the steering clutch brake mechanism through gear engagement; and the left steering transmission gear wheel and the right steering transmission gear wheel are respectively coupled with a transmission shaft which corresponds to a traveling mechanism on one side. The high-power step-less variable transmission case for the agricultural machinery can be used for efficiently enhancing the transmission property, realizingshifting speed control and simultaneously performing clutch brake, bearing high-power output and resisting frequency with fluctuation change of loads so as to prevent the transmission case from cracking.

The present invention provides a high-ground-clearance swather which is reasonable in design, a walking driving system for front wheel driving, a rear wheel steering system for active steering of rear wheels and a front wheel auxiliary steering system are matched, the front wheel auxiliary steering system is in active differential matching with the rotating angles of the left rear wheel and the right rear wheel, two-pump and two-motor hydraulic transmission is adopted for front wheel driving, two front wheels are independently controlled. According to the high-ground-clearance swather, the slipping phenomenon caused by free differential speed of the left front wheel and the right front wheel is avoided, the problem that passive differential speed cannot be achieved easily due to the fact that the resistance of the driving wheels is large during turning is solved, and the high-ground-clearance cutter-rower has good walking and steering performance in a field with a poor working environment, and a control method for controlling the high-ground-clearance cutter-rower is further provided. The problems of efficient walking and steering of the high-ground-clearance windrower under the sticky and wet soil condition are solved, and the high-ground-clearance windrower is very practical and wide in application prospect.

The invention discloses a train steering mechanism and a monorail train system with the same. The train steering mechanism comprises a bogie, a wheel cover, a travelling wheel and a conductive piece. The bogie is connected with a train; a mounting part is arranged on the bogie; an electromagnetic body is arranged in the wheel cover arranged on the mounting part; an opening is formed in the lower portion of the wheel cover; the travelling wheel is in a spherical shape and arranged in the wheel cover, and at least a part of the travelling wheel stretches out of the opening; a magnetic metal material is arranged in the traveling wheel; the conductive piece is connected with the wheel cover so as to energize the electromagnetic body and enable the electromagnetic body to produce a magnetic field; and the traveling wheel moves according to the strength and distribution direction of the magnetic field produced by the electromagnetic body. According to the train steering mechanism of the embodiment of the invention, the steering free degree of the train steering mechanism is improved, the steering flexibility of the train in the driving process is guaranteed, frictional resistance between the traveling wheel and the wheel cover is eliminated, traveling wheel heating caused in the process of electromagnetic induction is eliminated, and improving of monorail train performance is facilitated.

The invention discloses a spherical gyro mechanism capable of rotating omnidirectionally and a control method. A gyro rotor is arranged in a hollowed spherical body. The spherical body is arranged in upper and lower omnidirectional wheel driving assemblies which are capable of allowing the spherical ball to rotate omnidirectionally. The upper and lower omnidirectional wheel driving assemblies are arranged corresponding to upper and lower spherical surfaces. Each omnidirectional wheel driving assembly comprises multiple omnidirectional wheel groups which are circumferentially and uniformly distributed. Each omnidirectional wheel group comprises at least three omnidirectional wheels which are arranged on a corresponding arc wheel rack and are in contact with the spherical surfaces. In each omnidirectional wheel group, rotations of every two omnidirectional wheels are connected through a constant velocity universal joint. Rotation shafts of head and end omnidirectional wheels are connected with spherical body motors and incremental encoders for detecting rotation speed of the omnidirectional wheels. According to the invention, a steering problem of a gyro rotor around any shaft in the space is solved; disadvantages of traditional tri-axial mechanical gyros are overcome; and an omnidirectional driving method is provided and theoretical guidance is provided for establishment of a mode of an omnidirectional spherical gyro mechanism.

The invention discloses a bird hook and a chain transfer assembly used for a warehousing system and belongs to the technical field of automatic logistics. The bird hook comprises a hook base and a hook body. One end of the hook base is rotationally connected with one end of the hook body. A spring is further connected between the hook body and the hook base. A hook groove is formed in the other end of the hook body and used for hooking a carrier and driving the carrier to move along rails. A mounting portion connected with a transfer chain is arranged at the other end of the hook base. The perpendicular line where the groove wall, away from the hook body and hook base connection position, of the hook groove is located and the axis where a connecting shaft, away from the hook body and hookbase connection position, used for connecting the mounting portion with the transfer chain is located are located in the same vertical direction; or the perpendicular line where the groove wall, awayfrom the hook body and hook base connection position, of the hook groove and the axis where a connecting shaft, close to the hook body and hook base connection position, used for connecting the mounting portion with the transfer chain is located are located in the same vertical direction. The chain transfer assembly comprises the above bird hook, the transfer chain and the rails. According to thebird hook and the chain transfer assembly provided by the invention, the problem that at the turning positions of the chain, the bird hook and the carrier fail to steer synchronously is solved.

The invention discloses a steering and driving control method of an electric flatbed truck. The control method is suitable for the electric flatbed truck with a six-wheel steering system; according to the control method disclosed by the invention, under the premise of an extended-range type multi-wheel-hub motor-driving power system, a layer-type control framework adopting an upper layer electronic differential torque layer, an additional steering torque calculating layer, and a lower layer torque distributing layer is adopted, so that the steering and driving control of the electric flatbed truck is realized through the electronic differential torque control and the additional steering power-assisted torque distribution control. The control method comprises the following steps that control is exerted on the electric flatbed truck through changing the torque of a wheel hub motor, and during steering, the electric flatbed truck with the six-wheel steering system adopts a front-and-rear wheel out-of-phase steering manner. Through the adoption of the steering and driving control method disclosed by the invention, the problem of the steering of the extended-range type multi-wheel-hub motor-driving electric flatbed truck is solved, and a solution is provided for realizing flexible and mobile steering of the six-wheel steering system; and the control stability when the electric flatbed truck travels or turns, or being under the effect of sideway wind force, and the operating portability of the electric flatbed truck at a low speed can be improved by the six-wheel steering system.

The invention discloses a water pipe redirection rod, and relates to the technical field of agricultural tool machining. The water pipe redirection rod comprises at least two round pipes embedded with each other and vertically arranged, wherein every two embedded round pipes are locked through locking screws; an inverted cone part with a big top and a small bottom is arranged at the lower end of the lowest round pipe; and a vertical ring is mounted at the top end of the highest round pipe. The water pipe redirection rod can solve the problem of inconvenience for use due to easy winding or blocking of spraying equipment with a flexible water pipe used in a mountainous region.

The invention discloses a talking seat for psychological counseling of teachers and students. The talking seat comprises a seat, wherein a support rod is connected to the left side of the seat througha pin shaft, a camera is fixedly connected to the front end of the support rod, a loudspeaker box is fixedly connected to the rear side of the seat, an adjusting mechanism is fixedly connected to thebottom of the seat and comprises a round disc, the upper surface of the round disc is fixedly connected with the lower surface of the seat, a round column is fixedly connected to the bottom of the round disc, a rectangular hole I is formed in the bottom of the round column, a rectangular rod I is movably connected to the inner wall of the rectangular hole I, a base plate is rotatably connected tothe bottom of the rectangular rod I in a limiting manner, a worm wheel is fixedly connected to the surface close to the bottom of the rectangular rod I, a worm rod is meshed to the left side of the worm wheel, a shell I is fixedly connected to the upper surface of the base plate, and a support plate is fixedly connected to the inner wall of the shell I. According to the talking seat, the problemthat the steering and lifting adjustment of a traditional talking seat are not convenient enough is solved.

A segmental steering device of a pipeline robot comprises a first segment driving body, a first segment holding body, a second segment holding body, a second segment driving body, couplings, driving wheels, walking wheels, guide wheels and speed reduction motors; the first segment driving body is connected with the first segment holding body through the corresponding coupling, and the first segment holding body is connected with the second segment holding body through the corresponding coupling; the second segment holding body is connected with the second segment driving body through the corresponding coupling; each segment driving body is provided with three groups of driving wheels, and each driving wheel can be extended and retracted; each segment holding body is provided with three groups of walking wheels, and the machine body of each holding body is internally provided with the corresponding speed reduction motor; and the outer edges of each segment driving body and each segmentholding body are provided with three guide wheels. According to the segmental steering device, the steering function of a multi-segment pipeline robot and a pipeline robot with a longer machine body can be achieved; on the premise that the machine body device is unchanged approximately, the steering problem of the robot can be solved effectively; and a turning mechanism is simplified.

The invention discloses a steerable hanging basket traveling device, which comprises a traveling wheel bracket, two main traveling wheel assemblies, an H-shaped steel track and two sets of steering wheel combinations. The two sets of steering wheel combinations are arranged on the lower sides of corresponding main wheels. The lower sides of the two main wheels are supported on the upper side of the track. The lower side of the track is fixed on a box girder. Each steering wheel combination comprises a pair of steering wheels and steering wheel axial movement mechanisms, the end surfaces of thepair of steering wheels are oppositely horizontally arranged on the both sides of an H-shaped steel intermediate web, the outer peripheral faces of the steering wheels are abutted against the lower side face of an H-shaped steel top flange plate, and outer end screws of support shafts are connected with the steering wheel axial movement mechanisms fixed on the outer sides of vertical side plates.A steering method comprises the method of turning left and turning right. The device has a simple structure and is simple in method. The self-locking principle of the worm and worm gear transmissionis used, to make the support shafts to be locked in the required moving positions, so that the problem of steering on the arc-shaped track of the hanging basket traveling device is solved.

The invention provides a telescopic pesticide spraying machine, and belongs to the technical field of agricultural pesticide spraying machinery. The telescopic pesticide spraying machine comprises a travel device and spraying devices. The spraying devices are arranged on two sides of the travel device; a pesticide tank is arranged on the travel device, pesticide pipe insertion openings are formed in the pesticide tank, pesticide pipes are arranged between the pesticide pipe insertion openings and the spraying devices in a connected manner, the spraying devices comprise turning support frames and telescopic arms, pulling mechanisms are connected onto the turning support frames, and a turning mechanism is arranged between the turning support frames and the travel device. The telescopic pesticide spraying machine has the advantages that the telescopic arms are arranged on the travel device, so that the pesticide liquid spraying ranges can be adjusted; turning and spraying angles of the telescopic arms can be adjusted by the turning mechanism, the pesticide liquid spraying amount of a hydraulic pump can be controlled by a control system, and accordingly the technical problems of pesticide liquid wastage due to incapability of telescoping and turning pesticide spraying arms of the traditional pesticide spraying machinery and incapability of reasonably adjusting the spraying heights according to the heights of crops can be solved.

A material transplanting elevator, comprising a lifting mechanism and a horizontal transfer mechanism. It includes a bracket, a roller, and a second transfer sprocket set; the second transfer sprocket set includes three chains arranged at intervals on the bracket, a driving shaft at one end of the chain, and a driven shaft at the other end of the chain. The first transfer sprocket set matches the second transfer sprocket set; the left and right ends of the bracket are provided with lifting side plates, which are connected with the lifting motor, and a plurality of rollers are arranged between the lifting side plates. arranged side by side in the gaps of the chains. Compared with the prior art, the present invention has significant advantages and beneficial effects: it solves the problems of lifting, transplanting and turning of materials at the same time, and is suitable for lifting and transplanting of heavy-duty materials. The transplanting and turning structures are overlapped, and the volume is small , turn quickly.

The invention discloses a bearing large underframe of a wagon to transport U-shaped or box type prefabricated beams. An integral inverted cap type stress frame structure of box type and I type beam structures is formed by a sleeper beam assembly, a middle beam assembly, a side beam assembly, a center beam assembly, upper side bearing assemblies, ribbed plates, a beam assembly, floors and an uppercore disc. A table face formed by the middle portion of the frame structure is lower than table faces at the two ends, the upper core disc is arranged at the center of the middle portion, and the upper side bearing assemblies are arranged on the two sides. The stress frame is formed through installing and welding of multiple box type and I type beam structures, the bearing capability is high, thedistance between the bearing face and the rail surface is low, vertical loads of the prefabricated beams can be borne, and longitudinal loads among wagon groups can be transmitted as well. The upper core disc is used in cooperation with a lower core disc of a steering disc device through a circular hole or an oblong hole, rotating and translational motion of the steering disc device can be achieved, and vertical loads are transmitted. The lower core disc of the center of the underframe is used in cooperation with the upper core disc of the wagon group, a load bearing unit is formed, and the bearing capability of the transportation wagon group is improved.

The invention discloses a bionic amphibious vehicle and relates to the field of amphibious vehicles. The bionic amphibious vehicle comprises a vehicle body. A driving device enabling the vehicle body to move in water and a water wing device capable of overturning vertically are arranged on the vehicle body. The driving device comprises at least one magnetic power unit. Each magnetic power unit comprises a frame body, a blade and a driving assembly. Each driving assembly comprises a plurality of electromagnets and a controller. The electromagnets are spaced in the length direction of the blades through the frame bodies and are symmetrically arranged on the opposite two sides of the blades. The electromagnets generate dynamic magnetic fields with controllable magnetic field intensity and magnetic pole polarity through the controllers so that the blades can conduct adjustable wave-shaped swing periodically in the horizontal direction. The bionic amphibious vehicle has the advantages that the driving device drives the blades to conduct wave-shaped swing in water like fish tails through magnetic power so that the vehicle body can be pushed to move in the water. Compared with a traditional propeller driving mode, the magnetic power type driving device has the advantages that noise does not exist, clamping cannot occur, and safety is high.

The invention relates to the field of bicycles. A parallelogram steering mechanism hands-assisted chrome alloy bicycle includes a steering handlebar, a steering sleeve, a front fork horizontal shaft, a front wheel axle frame, a front wheel assembly, a rear wheel assembly, a rear fork swing frame, Frame components, paired sprockets, transmission chains and gravity seats, as well as steering steel shafts, power-assisted linkages, tension forks and power-assisted swing rods, coaxial symmetrical square shafts are symmetrically arranged under the steering handlebars, and the upper ends of the front wheel shaft brackets are connected There is a front fork horizontal shaft, and two steering steel shafts are movable and fixed between the front fork horizontal shaft and the coaxial symmetrical square shaft to realize the synchronous swing of the steering handlebar and the front wheel axle frame, which solves the problem of bicycle steering; the coaxial symmetry The axis line of the square shaft is at the same height as the shaft center line of the pivot pin of the swing rod. When the steering handlebar swings back and forth, the power-assisted swing rod is driven to swing back and forth synchronously centered on the through hole of the support. The hole is pivoted in situ at the center, and the distance between the coaxial symmetric square axis and the front fork transverse axis remains constant.

A motor drive axle of a double-track vehicle comprises a drive motor, a differential planet set, a hub reduction gear, a steering motor, an electromagnetic brake, a center shell and a reduction bevel gear pair. The driving motor is arranged at the bottom in the center shell, the output ends of the two ends of the driving motor are connected to sun wheels of the differential planet sets, and a planet carrier of each differential planet set is connected with the hub reduction gear. A steering motor is arranged at the top of the center shell, an electromagnetic brake is arranged at the output end of the steering motor, the output end of the steering motor is connected with a speed reduction bevel gear pair, and each bevel gear is connected to outer gear rings of the two differential planet sets through gears. The planet carrier speed reduction and differential process is adopted, the whole structure is simple and small, and the steering problem of the double-track vehicle is well solved through the structure. The whole mechanical stability is high, and through braking of the electromagnetic brake, on the premise that straight movement is guaranteed, the slipping phenomenon in the straight movement process is well guaranteed.

The invention relates to the technical field of engineering machinery steering systems, and in particular relates to an energy storage emergency steering module, a hydraulic steering system and a control method thereof. The energy storage emergency steering module is used for the hydraulic steering system and comprises an energy accumulator, a first control valve and a second control valve. The first control position is used for being communicated with a hydraulic pump and a power steering gear of the hydraulic steering system, and a second control position is used for being communicated withthe hydraulic pump and the energy accumulator. The second control valve is used for communicating the energy accumulator with the power steering gear. The energy storage emergency steering module is additionally arranged in a traditional electric hydraulic steering system; during conventional runtime of engineering machinery, the hydraulic pump builds pressure to drive the power steering gear, thehydraulic steering system can normally operate and charge the energy accumulator of the energy storage emergency steering module; when the hydraulic pump is abnormal and cannot provide pressure, theenergy accumulator can achieve reliable auxiliary emergency steering, and therefore the problem that emergency steering cannot be achieved due to the fact that the hydraulic pump of engineering machinery is abnormal is solved.

The invention relates to a transfer mechanism for 90-degree rotation of a safe deposit box. The transfer mechanism for 90-degree rotation of the safe deposit box comprises a synchronous belt linear module, a turning rail, a rotating mechanism, a supporting plate, a sliding rail and a sliding table, wherein the synchronous belt linear module is parallel to the sliding rail, the sliding table is insliding connection with the sliding rail, the tops of sliding blocks of the synchronous belt linear module and the top of the sliding table are fixedly connected with the supporting plate, a motor drives the synchronous belt linear module to further drive the supporting plate to reciprocate on a rail of the synchronous belt linear module and the sliding rail, the supporting plate is connected withthe rotating mechanism, and the turning rail is arranged between the synchronous belt linear module and the sliding rail. The transfer mechanism for 90-degree rotation of the safe deposit box has theadvantages that the structure is simple, operation is reliable, rotation is combined with taking and conveying, by means of safe deposit box conveying power provided by the synchronous belt linear module, self-rotation of the safe deposit box is achieved while linear motion is achieved in a narrow safe channel, and the problems of conveying and turning of the safe deposit box are well solved.

The invention provides a multidirectional double-drive rail guide vehicle which aims to achieve small friction resistance and convenient and flexible turning. The multidirectional double-drive rail guide vehicle comprises a main drive system, an auxiliary drive system, two driven wheels, a vehicle body and buffers. The main drive system comprises a main motor, a support, an electromagnetic brake, a coupler, a front driving wheel, an installation plate and a mounted bearing. An output shaft of the main motor is connected with a shaft of the front driving wheel through the coupler. The electromagnetic brake is installed on the output shaft of the main motor. The front driving wheel comprises a wheel, an axle, a wheel side plate, a top plate, a guide rail stopping wheel and a stopping rod. The guide rail stopping wheel is horizontally installed at the lower end of the wheel side plate. The guide rail stopping wheel is perpendicular to the position of the wheel. The auxiliary drive system is identical with the main drive system in structure, but a one-way bearing is installed at the center of a wheel of a back driving wheel coaxially and reversely in an engaged and disengaged manner. The main drive system and the auxiliary drive system are distributed at the front end and the back end of the same side of the vehicle body correspondingly. The front end and the back end of the other side of the vehicle body are provided with the two driven wheels corresponding to the wheels of the front driving wheel and the back driving wheel in position.

The invention discloses a propeller shaft remote sensing type strain measuring system used for ship, a measuring device, and a measuring method. The propeller shaft remote sensing type strain measuring system used for the ship comprises a rotor acquisition system, a stator analysis system, and a wireless sensing power supply system. The rotor acquisition system is used for detecting micro-strain signals and rotation speed / turning signals of a transmission shaft, and is used to transmit the detected signals to the rotor analysis system by using zigbee wireless technology. The stator analysis system is used to receive, analyze, store, and display the micro-strain signals and rotation speed / turning signals. The wireless sensing power supply system adopts an OC-type coiling for wireless powersupply and power supply excitation, and is used to provide the power supply for a stress piece torque measurement bridge, rotation speed / turning sensors. The propeller shaft remote sensing type strainmeasuring system is advantageous in that by aiming at the transmission shafts having different materials such as metal and non-metal and different diameters, a brand new universal type OC-type wireless sensing power supply design is adopted to satisfy requirements on the measurement of the transmission shafts of various materials and sizes, and the real-time torque, the power, the rotation speedand the turning of the transmission shafts during the rotary working state are monitored.

The invention relates to the technical field of semiconductor equipment, and in particular relates to a semiconductor component 3D detector, comprising a box in which a base plate is arranged in the box; two transmission devices are arranged on the upper surface of the base plate; a U-shaped support is arranged on the front surface of the box; a support rod is arranged between the two horizontal ends of the U-shaped support; an adjustment base is arranged on the top end of the support rod; and a lantern ring is arranged at the bottom end of the support rod. According to the semiconductor component 3D detector provided by the invention, the transmission device is arranged on the base plate in the box, so that the semiconductor component is convenient to transmit for detection, and the detection accuracy is improved; in addition, the U-shaped support is installed on the front surface of the box, the support rod is arranged on the U-shaped support; the support rod penetrates through a through hole in the adjustment base; through moving the support rod up and down in the through hole, the height of the adjustment base is convenient to fix; a support frame rotates via a second rotationshaft, so that the turning of the display screen is convenient to adjust, and the problem that the semiconductor component 3D detector is inconvenient to transmit the semiconductor component and inconvenient to adjust the height and turning of the display screen is solved.

The invention relates to the technical field of environmental protection and particularly relates to a ship for automatically clearing duckweed on a lake surface. The ship provided by the invention comprises a hull, a power device, a duckweed collecting bin, a console, a mesh belt conveyer, mesh belt conveyer baffle plates, a duckweed collecting belt and a steering device. By adopting the mesh belt conveyer, the problem that the collected duckweed contains a great deal of lake water is solved, and the lake water can fall into a lake through gaps on a mesh belt; by adopting the power device, the defect of mostly adopting an artificial boating mode is overcome, and manpower resources are greatly saved; by adopting the steering device, the problem of steering of the hull is solved, and the hull is easier to steer during salvaging; and by adopting a steering plate, the defect that the existing hull steering device is relatively complicated is overcome, and the steering device is simpler in structure.

The invention discloses a driving force differential two-wheeled turning device which comprises outer hubs, wheels, one-way bearings, inner hubs, an axle and a chain wheel. The chain wheel is mounted in the center of the axle. The inner side and the outer side of each wheel are provided with the corresponding inner hub and the corresponding outer hub. The outer hubs are fixedly arranged on the axle through fixing nuts and first bearings. The one-way bearings are arranged on the sides, facing the wheels, of the inner hubs. The axle penetrates through the one-way bearings, the outer rings of the one-way bearings are mounted on the inner hubs, and the inner rings are matched with the axle. Second bearings are arranged on the sides, back to the wheels, of the inner hubs, the outer rings of the second bearings are mounted on the inner hubs, and the inner rings are matched with the axle. Brake plates are arranged on the sides, back to the wheels, of the inner hubs. The chain wheel provides power for the axle to drive the wheels to rotate, in the turning process, the wheel on the side with the small turning radius is automatically locked under the action of the corresponding one-way bearing, the wheel on the other side can freely rotate, differential motion is achieved, and car turning is achieved.