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57results about How to "Large corner range" patented technology

Low-speed wind tunnel virtual flying experimental support device

InactiveCN105784314AImprove simulation accuracyLittle influence on dynamic characteristicsAerodynamic testingLow speedSection plane
The present invention discloses a low-speed wind tunnel virtual flying experimental support device which comprises a base, an airfoil support seat, a pre-bent support rod and a three-degree-of-freedom joint. The base is fixedly installed at the center position of a wind tunnel test section basic platform. The bottom end of the airfoil support seat is vertical and is fixedly installed on the base. The cross section of the airfoil support seat is parallel to a wind tunnel flow coming direction. One end of the pre-bent support rod is connected to the top end of the airfoil support seat, the other end of the pre-bent support rod is connected to the three-degree-of-freedom joint, and the cross section of the pre-bent support rod is parallel to the wind tunnel flow coming direction. The rotation center of the three-degree-of-freedom joint is in an axis in a wind tunnel and is hinged to an aircraft model. The hinged position is provided with a fine burning device which allows the mass center of the aircraft model coincides with the rotation center of the three-degree-of-freedom joint. According to the invention, the large range three-axis attitude free support of the aircraft model in a virtual flying experiment can be realized, the structure is simple, the interference is small, the accuracy is high, and the installation and adjustment methods are simple.
Owner:LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT

Wind tunnel model supporting device

InactiveCN101793592ARaise pitchImprove roll attitude realization abilityAerodynamic testingEngineeringDrive motor
The invention discloses a wind tunnel model supporting device which comprises a movable platform, a clamping device, a first driving unit and a second driving unit, wherein the movable platform has three translational freedom degrees and at least one rotation freedom degree. The clamping device is connected with the movable platform and is used for fixing and supporting the model. The first driving unit and the second driving unit are arranged on the movable platform and used for driving the clamping device, and therefore, the clamping device obtains the freedom degrees of rotation in horizontal and transversal directions. The first driving unit comprises a first driving motor and a first rope traction mechanism. The second driving unit comprises a second driving motor and a second rope traction mechanism. The wind tunnel model supporting device with simple and reliable structure can realize six freedom degrees of the model in the wind tunnel test, effectively expand the model pitch and the roll amplitude capable of being realized by model supporting, and decrease the acceleration, the motion speed and the motion travel of the driving units through the first driving unit and second driving unit which are connected in parallel.
Owner:TSINGHUA UNIV

Abdominal cavity minimally invasive surgery operation robot

The invention discloses an abdominal cavity minimally invasive surgery operation robot. The robot comprises a control device, a rack, at least three mechanical arms connected to the rack, and at leastthree end executer clamping devices connected to the mechanical arms. Each mechanical arm comprises a position adjustment mechanism and a telecentric mechanism capable of carrying out controlling through a control device. Each position adjustment mechanism comprises a first sliding block, a rotatably connected first rod piece, a rotatably connected second rod piece and a rotatably connected thirdrod piece. Each telecentric mechanism comprises a pivoting piece pivotably connected with the corresponding position adjustment mechanism, a rotatably connected first connection rod, a rotatably connected second connection rod, a rotatably connected third connection rod and a second sliding block. According to the invention, the telecentric mechanisms of the mechanical arms are single parallelogram mechanisms, so the corner range of each joint is improved; and flexibility and obstacle avoiding ability of the telecentric mechanisms of the mechanical arms are improved. The robot is simple in structure, small in size, and highly stable, stable and safe and has use values in industry.
Owner:ZHANGJIAGANG INST OF IND TECH SOOCHOW UNIV +1

Bionic snake-like robot and method

The invention discloses a bionic snake-like robot and a method, and belongs to the field of bionic robots. The snake-like robot comprises two parts including a drive box (1) and a multi-joint snake-like arm (2), wherein the drive box (1) is composed of drive motors, winches and supporting plates, and the multi-joint snake-like arm (2) is composed of joint units, universal joins and steel wire ropes. The series-connection structure design of the universal joints (9) is adopted in various joint units (8) of the bionic snake-like robot, and the joint units (8) are driven through the steel wire ropes (10) evenly distributed along the circumference; and the structure design that steel wire rope through holes are evenly distributed in a parse manner in the sector direction along the circumference, and wiring is conducted is adopted in the joint units (8). The bionic snake-like robot has the characteristics that the structure is simple, the redundancy freedom degree is high, flexibility is good, and the narrow space obstacle avoiding capability is high.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Symmetrical piezoelectric-driven two-dimensional directional adjusting mechanism and rotating platform angle adjusting method

A symmetrical piezoelectric-driven two-dimensional directional adjusting mechanism and a rotating platform angle adjusting method are provided. The invention relates to a piezoelectric driving deviceand an adjusting method. The symmetrical piezoelectric-driven two-dimensional directional adjusting mechanism comprises a rotating platform, a base, universal flexure hinges and four displacement amplifying units. Each displacement amplifying unit is mainly composed of a triangular amplifying structure and a piezoelectric ceramic actuator. The universal flexure hinges and the triangular amplifyingstructures are arranged between the rotating platform and the base. The rotating platform angle adjusting method comprises the following steps: gasless connection is carried out on the symmetrical piezoelectric-driven two-dimensional directional adjusting mechanism, and after installation, the initial height displacement deviation of the two symmetrical universal flexure hinges of the rotating platform is measured by using a laser displacement sensor; and then, the angle of the rotating platform is adjusted, and when the work is finished, the piezoelectric ceramic actuators are powered off and restored to the initial state. The symmetrical piezoelectric-driven two-dimensional directional adjusting mechanism and the rotating platform angle adjusting method are applied to the field of precision directional positioning and laser communication in a space environment.
Owner:HARBIN INST OF TECH

Control system for compliance steer of roadway trackless wheeled hydraulic power vehicle group

InactiveCN103287491AFlexible Steering Mechanical StructureLarge corner rangeSteering linkagesAutomatic steering controlArea networkSteering wheel
The invention relates to a control system for compliance steer of a roadway trackless wheeled hydraulic power vehicle group, which comprises steering mechanisms mounted on a power source vehicle and a steering wheel group of each haulage vehicle, a proportional direction valve mounted on each steering wheel group, an angular displacement sensor mounted on the axial line of each steering wheel group, a power source vehicle steering sensor mounted in a driving cab at the front of the power source vehicle and connected with a steering wheel, a master controller arranged in an explosion-proof electric cabinet of the power source vehicle, a haulage vehicle steering sensor mounted on a connecting rod of each haulage vehicle, and a slave controller mounted in an explosion-proof box of each haulage vehicle, wherein control programs compiled according to a built steering kinematics model of the whole vehicle wheel train are mounted in the main controller; and the master controller, the slave controller, the power source vehicle steering sensor, the haulage vehicle steering sensor and the angular displacement sensor are connected by adopting a CAN (Controller Area Network) bus. The invention has the advantages that the control system is suitable for the control of a split type haulage vehicle, and realizes driving of a person in a relatively broad environment.
Owner:YANSHAN UNIV

Biaxial galvanometer

The invention belongs to the technical field of laser, and discloses a biaxial galvanometer. The biaxial galvanometer comprises a fixed base, a support frame, a reflector, a reset device and a drive device. The support frame comprises an outer frame, an outer support beam and an inner support beam. The outer support beam and the inner support beam are perpendicular to each other. The outer frame is connected to the outer support beam. The outer support beam is rotationally connected to the fixed base. The reflector is connected to the outer frame through the inner support beam. The reset device is connected to the fixed base and the outer support beam. The drive device is arranged on the fixed base and the support frame, and is used for driving the support frame and the reflector to rotaterelative to the fixed base with the outer support beam as an axis and driving the reset device to generate elastic deformation, and is also used for driving the reflector to rotate with the inner support beam as an axis and driving the inner support beam to generate elastic deformation. According to the invention, because of the setting of the outer support beam in a rotational connection manner,the outer frame does not need to overcome the rigidity of the outer support beam during rotation, the angle range of the reflector is increased, and damage caused by vibration impact is avoided.
Owner:LEISHEN INTELLIGENT SYST CO LTD

Two-dimensional electric mirror adjustment device

The invention discloses a two-dimensional electric mirror adjustment device, relates to the technical field of beam control and overcomes defects that an existing fast steering mirror has a small rotation angle range and is high in manufacturing cost to realize automatic two-dimensional adjustment of a planar mirror. The device comprises a support base, a mirror seat, a planar mirror, a central shaft, a bearing press ring, a lens press block, two telescopic sliders, two slider guide seats, a knuckle bearing, two stepping motors, a backlash spring, an adjusting screw seat, an adjusting screw, two reset spring seats and two reset springs. Through threaded connection of the stepping motors and the telescopic sliders and limited guide of the slider guide seats, rotation movement of the stepping motors is converted into linear movement, further, the mirror seat and the mirror are directly driven by balls at the end parts of the telescopic sliders to deflect at a small angle, the cost is low, the two-dimensional electric mirror adjustment device can realize angle adjustment in a range of plus or minus 5-degree level through travel increase of a driver, and the adjustment range is increased by almost a hundred times than that of plus or minus 5' level of the fast steering mirror.
Owner:长春长光精密仪器集团有限公司

Two-dimensional moving magnet type rapid reflector device

The invention discloses a two-dimensional moving magnet type rapid reflector device which comprises a reflector, a rigid supporting assembly, a reflector support, a voice coil motor, a displacement measurement sensor and a shell. The reflector is supported at the front end of the base of the shell by the reflector support; the rigid supporting assembly connects the reflector support to the front end of the base of the shell; the voice coil motor is fixed between the reflector support and the base of the shell; and the displacement measurement sensor is fixed on a base of the shell. According to the invention, the moving magnet type rapid reflector device is adopted, a large rotation angle range is realized, the technical problems of thermal deformation of the reflector and the like causedby cable dragging and coil heating of a moving-coil type design are avoided, and the structure is reasonable and compact in arrangement and convenient to install.
Owner:北京瑞控信科技股份有限公司

Rear-mounted grinding wheel main shaft motor of plane grinding machine

The invention discloses a rear-mounted grinding wheel main shaft motor of a plane grinding machine, which is characterized by comprising a shell, a main shaft, a permanent magnet rotor assembly, a stator assembly, an encoder, a front end cover and a rear end cover, wherein the main shaft is arranged in the shell through a bearing I and a bearing II; the stator assembly is arranged in the shell and is located at the rear end of the shell; the permanent magnet rotor assembly is arranged on the main shaft; the front end cover is arranged at the front end of the shell; the rear end cover is arranged at the rear end of the shell; the encoder is arranged at the rear end of the main shaft and is connected with an external driver; the main shaft extends from the front end cover; the part of the main shaft is a conical surface, which extends from the front end cover; and the conical surface of the main shaft is provided with a grinding wheel grinding head. The rear-mounted grinding wheel main shaft motor of the plane grinding machine is capable of expanding the rotation angle of the grinding head and expanding the application range of the plane grinding machine.
Owner:XIAN HESHENG POWER TECH CO LTD

Fast-steering-mirror large-angle rotating mechanism based on cross spring bearing

The invention relates to a fast-steering-mirror large-angle rotating mechanism based on a cross spring bearing. A mirror-holder support of the mechanism is fixed on a motor installing machine frame; magnetic steels of four linear voice coil motors are connected with the motor installing machine frame, and coils are fixedly connected with an external mirror base; the center of the bottom of the motor installing machine frame is connected with the mirror base through a supporting mechanism; two bearing supports of the supporting mechanism are installed in the center of the bottom of the motor installing machine frame, and a pitching bearing installing frame is located inside an orientation bearing installing frame, and is connected with the orientation bearing installing frame through two orientation spring bearings; the two bearing supports are connected with the pitching bearing installing frame through two pitching spring bearings. According to the fast-steering-mirror large-angle rotating mechanism based on the cross spring bearing, the cross spring bearing has the enough flexibility in the working direction to prevent a driver from overloading, and the rotating angle range is wide, and the working bandwidth is high.
Owner:长春萨米特光电科技有限公司

Noncontact steering angle sensor

The invention provides a noncontact steering angle sensor comprising a shell, and a sun wheel shaft, a fixed internal tooth ring, a planet wheel set, a driving wheel set, a measuring gear, a magnet and a magnetic induction element which are arranged in the shell. The noncontact steering angle sensor is high in integration and small in radial dimension. The sensor is enabled to directly output a steering angle position measurement signal through detection of the steering angle of the measuring gear and simple conversion of driving ratio, the driving ratio of the steering angle of the sun wheel shaft to the steering angle of the measuring gear is high, and the range of the detectable steering angle is large.
Owner:QINGDAO SUNSONG GAOKE AUTOMOTIVE ELECTRONICS CO LTD

Straight line and rotation coupling-out type piezoelectric driving device

The invention discloses a straight line and rotation coupling-out type piezoelectric driving device which comprises a pile mounting seat, straight pins, a piezoelectric pile, strain foils, an invar sheet, a steel ball, a coupling-out component and an output shaft, wherein the strain foils are attached to the side surfaces of the piezoelectric pile, the bottom surface of the piezoelectric pile is adhered to the pile mounting seat, and the top surface of the piezoelectric pile is adhered to the invar sheet and is contacted with the steel ball inside an output shaft ball socket; the top of the coupling-out component is in interference nesting with the output shaft, and the bottom of the coupling-out component and the pile mounting seat are positioned with the straight pins and fixed with holding screws; after the piezoelectric pile applies voltage, the output shaft and the top of the coupling-out component are pushed to extend together along the axial direction; and because of the deformation coupling characteristics of the coupling-out component, the top of the coupling-out component and the output shaft rotate with a certain angle around the axial direction at the same time, and the angle is in direct proportion to the axial elongation. Output of straight line and rotary motion can be carried out in the axial direction at the same time, and the device has the advantages of being simple in structure, easy to control, large in angle rotation range, and high in displacement and angle rotation precision.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI

Electromagnetic driving and supporting structure of two-dimensional fast reflecting mirror

The invention discloses an electromagnetic driving and supporting structure of a two-dimensional fast reflecting mirror. The electromagnetic driving and supporting structure comprises a reflecting mirror, a reflecting mirror support, a rigid supporting assembly, a voice coil motor, a base and a shell. The reflecting mirror is supported on the rigid bearing assembly by the reflecting mirror bracket; the reflector bracket rotates around a first shaft relative to the rigid bearing assembly; the rigid bearing assembly is supported on the shell; the rigid bearing assembly rotates around a second shaft relative to the shell; the shell is fixed on the base; and the voice coil motor is fixed between the shell and the base. According to the invention, two-dimensional co-pivot rotation can be realized, and a mirror surface deflection angle of more than + / -20 degrees is achieved; large impact vibration can be resisted; and the axial height of the fast reflecting mirror device can be saved, so that the structure of the device is more compact.
Owner:北京瑞控信科技股份有限公司

One-dimensional heavy-load moving-coil limited rotation actuator

The invention relates to a one-dimensional high-speed heavy-load moving-coil limited rotation actuator. A rotating shaft supporting assembly comprises a rotating shaft capable of rotating around the axis of the rotating shaft supporting assembly; the coil assembly is fixed to the rotating shaft. Each coil assembly comprises n coils distributed in the circumferential direction of the rotating shaft. The permanent magnet assemblies are fixed to the shell, and each permanent magnet assembly comprises n+1 layers of permanent magnets distributed in the axial direction of the rotating shaft. Each group of permanent magnet assembly is correspondingly inserted into one group of coil assembly, so that the upper part and the lower part of each coil are respectively provided with a layer of permanent magnet; when current flows through the coil, the permanent magnet assembly generates a bias magnetic field, and the coil assembly is driven to drive the rotating shaft supporting assembly to rotate around the axis of the rotating shaft. According to the actuator, the torque output of the motor is improved while the weight of the rotor of the motor is reduced, so that a larger load can be borne, the working efficiency of the motor is greatly improved, and a fast steering mirror system can achieve higher rotation acceleration and working bandwidth.
Owner:北京瑞控信科技股份有限公司

Galvanometer and laser radar

The invention discloses a galvanometer and a laser radar, and the galvanometer comprises a fixed seat, a galvanometer drive frame which comprises a fast-axis support, a slow-axis support and a fast-axis frame, a reflector is installed in the fast-axis frame of the fast-axis support, the fast-axis support is connected in the slow-axis support, and the galvanometer drive frame is rotatingly connected in the fixed seat; the fast shaft frame twists around a first direction, and the slow shaft frame twists around a second direction; the slow shaft driving assembly comprises a motor and a cam; the cam is connected with the motor, the edge of the cam abuts against the side face of one end of the slow-axis support, and the motor drives the cam to rotate in the second direction and drives the slow-axis support to rotate in the second direction. Therefore, the reliability of the galvanometer can be improved, the vibration and impact resistance of the galvanometer is improved, and the service life of the laser radar is prolonged.
Owner:LEISHEN INTELLIGENT SYST CO LTD

Dual-bearing galvanometer and laser radar

The invention discloses a dual-bearing galvanometer and laser radar. The dual-bearing galvanometer comprises a fixed seat, a galvanometer driving rack and a reflection lens, wherein the galvanometer driving rack comprises a fixed support, a fast-axis frame and a slow-axis frame, the reflection lens is arranged in the fast-axis frame, the fast-axis frame is rotatably connected to an inner side of the fixed support, the slow-axis frame is fixedly connected to an outer side of the fixed support, the galvanometer driving rack is rotatably connected to the fixed seat, the fast-axis frame twists around a first direction, the slow-axis frame twists around a second direction, and the first direction is perpendicular to the second direction. Therefore, the reliability of an MEMS galvanometer can beimproved, the vibration and impact resistant capability of the galvanometer is improved, so that the lifetime of the laser radar is favorably prolonged.
Owner:LEISHEN INTELLIGENT SYST CO LTD

Linear Rotary Coupling Output Type Piezoelectric Actuator

The invention discloses a straight line and rotation coupling-out type piezoelectric driving device which comprises a pile mounting seat, straight pins, a piezoelectric pile, strain foils, an invar sheet, a steel ball, a coupling-out component and an output shaft, wherein the strain foils are attached to the side surfaces of the piezoelectric pile, the bottom surface of the piezoelectric pile is adhered to the pile mounting seat, and the top surface of the piezoelectric pile is adhered to the invar sheet and is contacted with the steel ball inside an output shaft ball socket; the top of the coupling-out component is in interference nesting with the output shaft, and the bottom of the coupling-out component and the pile mounting seat are positioned with the straight pins and fixed with holding screws; after the piezoelectric pile applies voltage, the output shaft and the top of the coupling-out component are pushed to extend together along the axial direction; and because of the deformation coupling characteristics of the coupling-out component, the top of the coupling-out component and the output shaft rotate with a certain angle around the axial direction at the same time, and the angle is in direct proportion to the axial elongation. Output of straight line and rotary motion can be carried out in the axial direction at the same time, and the device has the advantages of being simple in structure, easy to control, large in angle rotation range, and high in displacement and angle rotation precision.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI

Face shovel excavating and loading device capable of increasing pushing force and journey of bucket hydraulic cylinder

The invention provides a face shovel excavating and loading device capable of increasing pushing force and journey of a bucket hydraulic cylinder. According to the face shovel excavating and loading device, the lower end of a moveable arm is hinged to a rack; the upper end of the moveable arm is hinged to one end of a bucket rod; the other end of the bucket rod is hinged to one part of a bucket; one ends of a pair of moveable arm hydraulic cylinders are hinged to one part of the moveable arm; the other ends of the pair of moveable arm hydraulic cylinders are hinged to the rack; the middle part of the bucket rod is hinged to one ends of a pair of bucket rod hydraulic cylinders; the other ends of the pair of bucket rod hydraulic cylinders are hinged to the rack; one ends of a pair of bucket hydraulic cylinders are hinged to one part of the bucket; the face shovel excavating and loading device is characterized in that a pair of bucket rod rockers are hinged to two sides of the bucket rod; the other two hinged points of the bucket rod rockers are hinged to other ends of the bucket hydraulic cylinders and one ends of a pair of moveable arm connecting rods; the other ends of the moveable arm connecting rods are hinged to other parts of the moveable arm. The face shovel excavating and loading device has the advantages that the energy consumption is low, the force transmission is reasonable, the working space is large, the control is easy, and the like.
Owner:YANSHAN UNIV

Automatic capping device for outer wall coating barrel

The invention discloses an automatic capping device for an outer wall coating barrel, and belongs to the field of capping devices. The automatic cover sealing device for the outer wall coating barrelcomprises a conveying table, a supporting frame and a press-fitting mechanism, wherein the supporting frame is attached to the conveying table, a cylinder body is vertically installed on the support frame, and a press-fitting mechanism is connected to a cylinder body piston shaft. A pressing claw in the press-fitting mechanism are formed by sequentially connecting an upper claw arm, a lower claw arm and a pressure sealing head, a sliding groove is formed in the upper claw arm, and a pin shaft connected with a transmission arm can slide in the sliding groove, so that the pressing claw is drivento rotate around a hinge shaft on the lower claw arm, and the sealing of a sealing and pressing head for a barrel cover is achieved. The hinged connection between the transmission arm and the pressing claw is changed into a connecting relationship capable of sliding and rotating simultaneously, so that the radial size of a circle where the sealing pressure head is disposed can be shortened, the pressure is conveniently applied, and the sealing performance of the coating barrel is improved.
Owner:MAANSHAN TIANJINYUN PAINT IND

A low-speed wind tunnel virtual flight experiment support device and its application method

InactiveCN105784314BImprove simulation accuracyLittle influence on dynamic characteristicsAerodynamic testingFlight testLow speed
The present invention discloses a low-speed wind tunnel virtual flying experimental support device which comprises a base, an airfoil support seat, a pre-bent support rod and a three-degree-of-freedom joint. The base is fixedly installed at the center position of a wind tunnel test section basic platform. The bottom end of the airfoil support seat is vertical and is fixedly installed on the base. The cross section of the airfoil support seat is parallel to a wind tunnel flow coming direction. One end of the pre-bent support rod is connected to the top end of the airfoil support seat, the other end of the pre-bent support rod is connected to the three-degree-of-freedom joint, and the cross section of the pre-bent support rod is parallel to the wind tunnel flow coming direction. The rotation center of the three-degree-of-freedom joint is in an axis in a wind tunnel and is hinged to an aircraft model. The hinged position is provided with a fine burning device which allows the mass center of the aircraft model coincides with the rotation center of the three-degree-of-freedom joint. According to the invention, the large range three-axis attitude free support of the aircraft model in a virtual flying experiment can be realized, the structure is simple, the interference is small, the accuracy is high, and the installation and adjustment methods are simple.
Owner:LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT

River channel dredging grab bucket device

The invention provides a river channel dredging grab bucket device. The device comprises an adjusting mechanism, a supporting rod, bucket piece mechanisms and a pressing disc mechanism. The adjustingmechanism is a planar six-rod mechanism composed of a bucket rod, a grab bucket hydraulic cylinder, a rocker, a connecting rod and a connecting seat through hinging, wherein the grab bucket hydrauliccylinder is a driving part; the upper end of the supporting rod is fixed to the connecting seat of the adjusting mechanism; and the side wall of the supporting rod is provided with the bucket piece mechanisms uniformly distributed in the circumferential direction. Each bucket piece mechanism comprises a bucket piece hydraulic cylinder and a bucket piece. The lower end of the supporting rod is provided with the pressing disc mechanism, and the pressing disc mechanism comprises a pressure disc hydraulic cylinder fixedly connected with the lower end of the supporting rod, and a pressing disc fixedly connected with a piston rod of the pressure disc hydraulic cylinder. The side wall of each bucket piece is provided with a drainage groove. The river channel dredging grab bucket device takes theplace of a hydraulic excavator bucket mechanism to achieve grabbing, squeezing and removing of river channel sludge, and has the advantages of high convenience flexibility, high efficiency and low cost.
Owner:SHAANXI SCI TECH UNIV

Flexible Steering Control System for Roadway Trackless Wheeled Hydraulic Power Units

InactiveCN103287491BFlexible Steering Mechanical StructureLarge corner rangeSteering linkagesAutomatic steering controlSteering wheelArea network
The invention relates to a control system for compliance steer of a roadway trackless wheeled hydraulic power vehicle group, which comprises steering mechanisms mounted on a power source vehicle and a steering wheel group of each haulage vehicle, a proportional direction valve mounted on each steering wheel group, an angular displacement sensor mounted on the axial line of each steering wheel group, a power source vehicle steering sensor mounted in a driving cab at the front of the power source vehicle and connected with a steering wheel, a master controller arranged in an explosion-proof electric cabinet of the power source vehicle, a haulage vehicle steering sensor mounted on a connecting rod of each haulage vehicle, and a slave controller mounted in an explosion-proof box of each haulage vehicle, wherein control programs compiled according to a built steering kinematics model of the whole vehicle wheel train are mounted in the main controller; and the master controller, the slave controller, the power source vehicle steering sensor, the haulage vehicle steering sensor and the angular displacement sensor are connected by adopting a CAN (Controller Area Network) bus. The invention has the advantages that the control system is suitable for the control of a split type haulage vehicle, and realizes driving of a person in a relatively broad environment.
Owner:YANSHAN UNIV

Tire burst safety guaranteeing auxiliary device applicable to four-driven unmanned mine truck

The invention discloses a tire burst safety guaranteeing auxiliary device applicable to a four-driven unmanned mine truck, and aims to improve the safety of the unmanned mine truck after tire burst of a wheel and ensure the working efficiency of the mine truck. The auxiliary device consists of a driving mechanism, a transmission mechanism, a connecting structure and an auxiliary wheel, wherein the driving mechanism adopts an auxiliary motor as a power source of the safety guaranteeing auxiliary device; the transmission mechanism adopts a rod system, and comprises a plurality of transmission rods working together; the connecting structure adopts a hinged structure, and is used for fixing the safety guaranteeing auxiliary device and connecting the mechanisms; the auxiliary wheel is equipped with a wheel hub driving motor, is mounted on a fork-shaped mechanism, and provides a part of a braking force for the unmanned mine truck after the tire burst. The tire burst safety guaranteeing auxiliary device has the characteristics of convenience in mounting and dismounting, convenience in maintenance, suitability for working in a harsh working condition and the like; during working, the tire burst safety guaranteeing auxiliary device has a self-locking function so as to improve the working reliability thereof.
Owner:JILIN UNIV

An underwater working robot

The invention discloses an underwater working robot which is characterized by mainly comprising a vehicle body module, a manipulator module or / and an underwater camera module, a functional component module and a control module, wherein the modules are completely isolated mechanically and electrically; the vehicle body module mainly comprises a six-wheel and six-drive sealing vehicle body, a vehicle body direct current servo motor, a vehicle body motor driver, a vehicle body underwater ultrasonic sensor, a vehicle body temperature pressure sensor, an underwater lighting lamp, a vehicle body waterproof plug, a vehicle body inflating valve and a vehicle body anti-radiation lead plate; the manipulator module mainly comprises a base, a waist part, a large arm, a small arm and a tail end executer; the base, the waist part, the large arm and the small arm are connected with one another through hollow joints; air is filled into a manipulator, and wires are arranged in the manipulator; the underwater camera module mainly comprises an underwater camera, an underwater camera lighting lamp and a bidimensional tripod; the functional component module mainly comprises a storage box, an underwater dust remover and an underwater cutter; and the control module mainly comprises a main control console and a hand-control box.
Owner:HEBEI UNIV OF TECH +1

Implementation method of vehicular independent steering system

The invention provides an implementation method of a vehicular independent steering system. The system includes a plurality of wheel sets, a steering device, an angle sensor, a travel driving device and a computer, wherein the wheel sets are arranged on the lower portion of a vehicle, and independent steering of the wheel sets can be achieved; the steering device drives steering of the wheel sets;the angle sensor is used for detecting the actual steering angles of the wheel sets; the travel driving device is used for driving the wheel sets to travel; the computer is used for cooperatively controlling the steering angles of the wheel sets and travel driving. The limit angles of clockwise steering and clockwise steering of the wheel sets driven by the steering device are unsymmetrical relative to the neutral position. The steering device achieves the asymmetry, relative to the neutral position, of the steering capability of the wheel sets and independent steering of the wheel sets, andthe computer achieves coordinated control over the steering angles and the travel directions of the wheel sets, so that a vehicle has a wider range of the steering angles, and the steering flexibilityof the vehicle is greatly improved on the basis that the cost of hardware is scarcely increased.
Owner:ZHENGZHOU NEW DAFANG HEAVY IND & TECH

A method for adjusting the angle of a rotating platform with a piezoelectrically driven two-dimensional pointing adjustment mechanism with a symmetrical structure

A symmetrical piezoelectric-driven two-dimensional directional adjusting mechanism and a rotating platform angle adjusting method are provided. The invention relates to a piezoelectric driving deviceand an adjusting method. The symmetrical piezoelectric-driven two-dimensional directional adjusting mechanism comprises a rotating platform, a base, universal flexure hinges and four displacement amplifying units. Each displacement amplifying unit is mainly composed of a triangular amplifying structure and a piezoelectric ceramic actuator. The universal flexure hinges and the triangular amplifyingstructures are arranged between the rotating platform and the base. The rotating platform angle adjusting method comprises the following steps: gasless connection is carried out on the symmetrical piezoelectric-driven two-dimensional directional adjusting mechanism, and after installation, the initial height displacement deviation of the two symmetrical universal flexure hinges of the rotating platform is measured by using a laser displacement sensor; and then, the angle of the rotating platform is adjusted, and when the work is finished, the piezoelectric ceramic actuators are powered off and restored to the initial state. The symmetrical piezoelectric-driven two-dimensional directional adjusting mechanism and the rotating platform angle adjusting method are applied to the field of precision directional positioning and laser communication in a space environment.
Owner:HARBIN INST OF TECH

A dual-axis vibrating mirror

The invention belongs to the field of laser technology, and discloses a two-axis vibrating mirror, which includes a fixed seat, a support frame, a reflector, a reset device and a driving device. The support frame includes an outer frame, an outer support beam and an inner support beam, and the outer support beam and The inner support beams are perpendicular to each other, the outer frame is connected to the outer support beam, the outer support beam is rotatably connected to the fixed seat, the reflector is connected to the outer frame through the inner support beam, the reset device is respectively connected to the fixed seat and the outer support beam, and the driving device is arranged on On the fixed seat and the supporting frame, it is used to drive the supporting frame and the reflector to rotate relative to the fixed seat with the outer support beam as the axis, and drive the reset device to produce elastic deformation. The driving device is also used to drive the reflector to rotate with the inner support beam as the axis , and drive the inner support beam to produce elastic deformation. In the present invention, the arrangement of the rotational connection of the outer support beams makes it unnecessary for the outer frame to overcome the rigidity of the outer support beams when rotating, thereby increasing the range of the rotation angle of the reflector and avoiding damage caused by vibration and impact.
Owner:LEISHEN INTELLIGENT SYST CO LTD
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