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182results about How to "Reduce the difficulty of manipulation" patented technology

Remote control signal sending apparatus and method thereof, and remote control signal receiving apparatus and method thereof, and remote control equipment

InactiveCN104180796AReduce the difficulty of manipulationOvercome the problem of judging the direction of the modelTransmission systemsRemote-control toysControl signalControl engineering
Disclosed in the present invention are a remote control signal transmitting and receiving apparatus and method, and remote control equipment, the remote control signal receiving apparatus being arranged at the side of a remote control model. The receiving apparatus comprises: a sensor, used for determining the current azimuth angle of the remote control model; a receiver, used for receiving a remote control signal; and a processor, used for determining operation information and azimuth angle information contained in the remote control signal, the azimuth angle information being used for indicating the current azimuth angle of a remote control signal transmitter. Moreover, the processor is used for correcting the direction indicated by the operation information and determining the direction of actual motion of the remote control model according to the current azimuth angle of the remote control model and the current azimuth angle of the transmitter, and the direction of actual motion is same as the direction of motion indicated by the operation information. The present invention can overcome the problem that an operator is needed to make a judgment on the direction of the model in a real sense, and realize remote control in a smart operation way, improving user experience.
Owner:DDPAI TECH CO LTD

Precise clamp used for micro-miniature complex thin-walled part machining and control method of precise clamp

The invention discloses a precise clamp used for micro-miniature complex thin-walled part machining and a control method of the precise clamp. According to the core part of the mechanical structure of the precise clamp, five gas-liquid damping cylinders connected through universal joints are adopted for the upper end and five gas-liquid damping cylinders connected through universal joints are adopted for the lower end, and therefore a platform which can rise, fall and deflect can rise and fall by 0-80 mm and deflect by 0-270 degrees according to the machining and processing requirements of thin-walled parts and can be suspended in any space and keep the required posture according to requirements, and a whole workpiece can be machined on a composite machine tool through one-time clamping; in addition, by arranging a visual system, visual and accurate machining information is provided when the micro-miniature complex thin-walled parts are machined by operators; industrial personal computer centralized control is adopted for the control method of the precise clamp, the control scheme is simple and reasonable, and the precise clamp and the control method have the advantages that the automation degree is high, control is convenient and efficient under the man-machine synergistic effect, and the precise clamp and the control method are suitable for machining micro-miniature thin-walled structural pieces with various three-dimensional complex morphologies or free-form surfaces.
Owner:SHANDONG UNIV OF SCI & TECH

Multi-source information fusion and intelligent decision autonomous-flight plant protection unmanned aerial vehicle and control method thereof

The invention discloses a multi-source information fusion and intelligent decision autonomous-flight plant protection unmanned aerial vehicle and a control method thereof. The multi-source informationfusion and intelligent decision autonomous-flight plant protection unmanned aerial vehicle comprises an information acquisition system, a surface control station and a plant protection unmanned aerial vehicle; the information acquisition system includes an unmanned aerial vehicle acquisition system, a weather acquisition system and an internet disease condition acquisition server; the unmanned aerial vehicle acquisition system includes a high-spectral camera, airborne radar, a CCD (charge coupled device) camera, and a GPS (global positioning system), a Beidou system and an acquisition unmanned aerial vehicle body; the weather acquisition system includes a wind speed sensor, a wind direction sensor and a weather acquisition controller; the plant protection unmanned aerial vehicle comprisesan unmanned aerial vehicle body, a pesticide application system and a navigation system; all the acquisition unmanned aerial vehicle body, the weather acquisition control unit, the internet disease condition acquisition server and the plant protection unmanned aerial vehicle body are in wireless communication connection with the surface control station. The problems are solved that, for instance,an existing plant protection unmanned aerial vehicle acquires little information, crop information, weather information and operation information are not fused, and intelligent precision automated pesticide application is difficult to implement.
Owner:NANJING AGRI MECHANIZATION INST MIN OF AGRI

Cloud robot system, cloud server, robot control module and robot

The embodiment of the invention relates to the technical field of robots, and discloses a cloud robot system, a cloud server, a robot control module and a robot. The cloud robot system comprises the cloud server and the robot control module, the cloud server comprises a robot access and data exchange module, a knowledge and data intelligent module, an artificial enhancement machine intelligent module, a digital twin operation core module and a robot big data module, and the robot control module is located on an entity robot. The robot control module communicates with the cloud server through a private network. Through the above mode, the embodiment of the invention realizes the intelligent cloud robot system with dynamic closed loop and continuous evolution.
Owner:CLOUDMINDS SHANGHAI ROBOTICS CO LTD

Transportable type device applicable to capturing and butt joint of underwater moving target

The invention belongs to the field of related equipment of deep sea rendezvous and docking and discloses a transportable type device applicable to capturing and butt joint of an underwater moving target. The transportable type device comprises a mechanical arm, a guide cover capturing unit, a light source guide unit and a butt joint unit, wherein the mechanical arm is designed into a multi-joint type underwater mechanical arm and can be folded and stored after operation is finished; the guide cover capturing unit is mounted at the tail end of the mechanical arm and has opening and closing functions, so that the capturing of the underwater moving target is finished; the light source guide unit is used for sensing a position and a posture of the underwater moving target; the butt joint unitis used for carrying out mutual and accurate butt joint on a butt joint socket for the underwater moving target through a plug manner. With the adoption of the transportable type device disclosed by the invention, capturing and butt joint operation of the underwater moving target can be finished under a moving state in a higher-precision manner; meanwhile, influences caused by seawater interference are effectively overcome, the capturing success rate and the capturing efficiency are remarkably improved, and the accuracy and applicability of the butt joint operation are ensured.
Owner:HUAZHONG UNIV OF SCI & TECH

Nuclear power station climbing robot system and method for detecting secondary side of steam generator

The invention discloses a nuclear power station climbing robot system which is used for detecting the cleanliness of a secondary side of a steam generator. The nuclear power station climbing robot system comprises a climbing robot and remote control equipment. When the nuclear power station climbing robot system works, the climbing robot acquires position detection data and video data in real time, the remote control equipment can input a control order and locate, plan the route of, autonomously navigate, exchange data of the climbing robot according to the control order, and three-dimensional visual simulation and video data of the climbing robot in the steam generator in the movement process can be synchronously displayed, so that the cylinder situation in the secondary side of the steam generator can be judged, and convenience and high accuracy in detection can be achieved. In addition, the invention also discloses a method for detecting the secondary side of the nuclear power station steam generator by the climbing robot.
Owner:CHINA NUCLEAR POWER TECH RES INST CO LTD +2

Novel son and mother unmanned aerial vehicle system

The invention relates to a novel son and mother unmanned aerial vehicle system which is composed of a carrying mother plane, a shooting son plane, an airborne winch system and a ground station. The carrying mother plane and the ground station transmit information through an instruction receiver and a wireless data transmission device, the instruction receiver is connected with a mother-plane flight control system, and the wireless data transmission device is connected with the mother-plane flight control system; a mother-plane power system is connected with the mother-plane flight control system, and a mother-plane power supply is connected with the mother-plane flight control system; the carrying mother plane is connected with the shooting son plane through the airborne winch system, one end of the airborne winch system is connected with the carrying mother plane, and the other end of the airborne winch system is connected with a son-plane flight control system; a son-plane wireless data transmission device and a son-plane wireless image transmission device are arranged in the son-plane flight control system which is connected with a cloud deck, an image shooting system is arranged in the cloud deck, the son-plane flight control system is provided with a servo steering engine, electric energy of the son-plane flight control system is provided by a son-plane power supply, and the servo steering engine is connected with a son-plane power system.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD QUZHOU POWER SUPPLY CO +2

Amphibious quadrotor unmanned aerial vehicle

The invention discloses an amphibious quadrotor unmanned aerial vehicle. The amphibious quadrotor unmanned aerial vehicle comprises four propellers, a rigid cross bracket mechanism and a control system. The rigid cross bracket mechanism comprises a machine frame body and four machine arms connected to the periphery of the machine frame body, a cabin body is installed at the bottom of the machine frame body in a sealed mode, and the top of the machine frame body is provided with a watertight connector for installing a waterproof wire; a water storage cabin and a water pump are arranged on the upper half portion of the interior of the cabin body; and a water inlet pipe of the water pump is connected with a water inlet / outlet formed in the lower portion of the cabin body in a sealed mode, and a water outlet pipe is connected with a water inlet formed in the lower end of the water storage cabin in a sealed mode. The amphibious quadrotor unmanned aerial vehicle is improved on the basis of an aerial quadrotor unmanned aerial vehicle technology and can move freely underwater, and main components inside the machine frame body are protected through sealing treatment; the water storage cabin and the water pump which are arranged on the upper half portion of the interior of the cabin body are self weight adjusting devices, the unmanned aerial vehicle can control water pumping and drainage of the water pump under remote control so as to adjust the weight of the unmanned aerial vehicle, and accordingly the underwater attitude of the unmanned aerial vehicle is controlled.
Owner:ZHEJIANG UNIV

Process for preparing 4-amino diphenylamine

The present invention discloses production process of 4-amino diphenylamine with nitrobenzene and phenylamine as materials. For the condensation and hydrogenation, corresponding composite alkali catalyst and composite powdered catalyst are adopted separately. The production process includes the successive steps of condensation, separation I, hydrogenation, separation II and refining, and may be completed continuously. The composite alkali catalyst is separated and reused before the hydrogenation step, and this avoids the heat decomposition of the composite alkali catalyst and increases the catalyst selecting range. The production process has 4-amino diphenylamine yield industrial scale over 95 % and 4-amino diphenylamine purity over 99 wt%.
Owner:JIANGSU SINORGCHEM TECH CO LTD

Method of controlling flying of unmanned aerial vehicle around contour of object

The invention provides a method of controlling the flying of an unmanned aerial vehicle (UAV) around the contour of an object, comprising the following steps: a UAV is powered on and self-tested; the UAV takes off and makes a target to be surrounded go into a target detection range, and a target surrounding mode is opened; the included angle (namely, slip angle) between the head direction of the UAV and the center direction of the target and the distance (namely, target distance) between the UAV and the target are calculated based on laser radar detection information; the slip angle is input to a steering PID controller, and the output of the controller is used to make the UAV lock the target; the target distance is input to a distance-fixing PID controller, and the output of the controller is used to control the distance between the UAV and the target at a set distance; and the UAV flies around the contour of the target under control. Through the method of controlling the flying of an UAV around the contour of an object, the head direction can be always facing the target, the UAV can fly at a fixed distance around the contour of the target under control, and the difficulty in manually controlling the flying of the UAV around the target is reduced greatly.
Owner:HARBIN ENG UNIV

Terminal executing device capable of measuring force and used for robot

The invention discloses a terminal executing device capable of measuring force and used for a robot. The terminal executing device comprises a terminal body; the terminal body comprises a plurality ofbearing pieces which are sequentially connected in a bent mode, elastic elements arranged on the inner sides of the bearing pieces and strain gauges, wherein each elastic element at least comprises an assembling part capable of being connected to the corresponding bearing piece in a fastening mode and an elastic part arranged to extend from the corresponding assembling part, and the elastic partsand the inner walls of the bearing pieces keep a certain distance; and the strain gauges are arranged on the inner wall, facing towards the inner wall direction of the bearing pieces, of the elasticparts. By implementing the terminal executing device capable of measuring force and used for the robot, real time strain can be measured in the operation process so as to reduce the control difficulty; and the structure is simplified, rigidity damage to the terminal and a manipulator due to rigid collision can be reduced, reliability is high, adaptability is wide, and the cost is easy to control.
Owner:CHINA NUCLEAR POWER TECH RES INST CO LTD +2

Sea launching rack for rocket and method of erecting rocket

The invention relates to a sea launching rack for a rocket and a method of erecting the rocket. The launching rack comprises a fixed rack, an erecting rack, an insulating cabin and an erecting table.The erecting rack is connected to the fixed rack through a rotary shaft mechanism. The sea launching rack also comprises an erecting device and a buffer device. The erecting device comprises a winch and an erecting steel wire rope. The winch is fixed to the fixed rack, the left end of the erecting steel wire rope is connected to the winch, and the right end of the erecting steel wire rope bypassing an erecting pulley on the fixed rack is connected to a connecting ring on the erecting rack. The buffer device comprises a supporting arm, a buffer pulley, a reversing pulley, a limiting rod, a buffer steel wire rope, a pendant and a butt joint arm. The sea launching rack has the advantages of being simple in structure, safe and reliable and high in adaptability, can reduce the butt joint operating difficulty and avoids a speed loss phenomenon in the erecting process. The method of erecting the rocket has the advantages of being simple in flow, small in operating difficulty and high in safety.
Owner:BEIJING INST OF SPACE LAUNCH TECH +1

Takeoff and landing platform of full-autonomous multi-rotor unmanned aircraft

InactiveCN107554325ASolve problems such as time period for executing tasks and limited effectsExtend battery lifeBatteries circuit arrangementsElectric powerNavigation systemFire prevention
The invention discloses a takeoff and landing platform of a full-autonomous multi-rotor unmanned aircraft. The takeoff and landing platform comprises a power supply system, a wireless charging system,a communication system, a platform electromechanical system, and a navigation system. The takeoff and landing platform is characterized in that the power supply system comprises a commercial electricity module, a solar energy module, a battery module and a power supply management module, wherein the power supply management module is used for managing the operation of the commercial electricity module, the solar energy module and the battery module, and intelligently selecting a suitable power supply mode (commercial electricity or solar energy) according to actual situation to control the charging and discharging of a battery; and the wireless charging system comprises a battery replacing system and is in a structure similar to a rotating disk of a revolving pistol. The takeoff and landing platform disclosed by the invention is wide in application prospect, and can be applied in forest fire prevention, public security patrol, facility maintenance, agricultural plant protection, logistics of unmanned aircrafts, and the like. The takeoff and landing platform can effectively solve the problem that in the conventional related industries, an unmanned aircraft has the defects that the time for executing a task is short, and the effect is limited because the battery capacity is limited.
Owner:郭嘉伟 +1

Petroleum drilling oscillator

The invention discloses a petroleum drilling oscillator. The petroleum drilling oscillator comprises a straight through outer power cylinder, a connector arranged at the bottom end of the outer power cylinder and a vibration device arranged at the top end of the outer power cylinder. A flow distribution device, a power device and a valve plate set are sequentially arranged in the outer power cylinder from top to bottom, a piston is arranged at the end, connected with the outer power cylinder, of the vibration device, the flow distribution device is connected with the power device through a pull rod, and the valve plate set is arranged between the connector and the power device. A turbine is adopted for the petroleum drilling oscillator to serve as a power source, a turbine component is a pure metal element, service life is greatly prolonged, and the petroleum drilling oscillator can be continuously used above 300 hours. Besides, the cost of the turbine component is low, so that overall manufacturing cost is reduced. All internal parts are installed in the straight through outer power cylinder, so that no eccentric motion occurs, and stability is better.
Owner:CHENGDU EN SHAIN TECH INC +1

Power chassis of double crawler belt-type micro tillage machine

The invention discloses a power chassis of a double crawler belt-type micro tillage machine. The power chassis comprises an engine, a rack, a belt transmission mechanism, a speed changing box, a chain transmission mechanism, and a crawler belt traveling mechanism arranged at the bottom of the rack, wherein power output by the engine is output to the speed changing box through the belt transmission mechanism; after speed change of the speed changing box, the power is output in two ways; one way of power is output to a crawler belt driving wheel in the crawler belt traveling mechanism to drive the whole chassis to travel; and other way of power is output to the chain transmission mechanism to drive external working parts by a chain drive driving wheel. With the adoption of the device, the operation stability of the micro tillage machine is improved, and the manipulation difficulty of a machinist is lightened; and the power chassis of the double crawler belt-type micro tillage machine also has the advantages of strong climbing ability, flexibility in steering, large tractive force and small slipping rate.
Owner:HENAN UNIV OF SCI & TECH

Control method for virtual camera, device and equipment

The invention provides a control method for a virtual camera, a device and equipment The method is applied to a graphical interface loaded with a virtual scene, and comprises the steps of determininga behavior state of a virtual object in the virtual scene; setting control parameters of the virtual camera according to the behavior state of the virtual object so as to control an image acquisitionvisual angle of the virtual camera in the virtual scene; and displaying a target image acquired by the virtual camera at an image acquisition visual angle in the graphical interface. According to themethod, corresponding control parameters are set for the virtual camera through the behavior state of the virtual object, so that the image acquisition visual angle of the virtual camera can be automatically adjusted, and a target image conforming to the behavior state of the virtual object is displayed in a graphical interface; therefore, the situation that the user needs to synchronously controlthe virtual camera when controlling the game role in the game process is avoided, the control difficulty of the virtual object is greatly reduced, and the game experience of the user and the game interest are improved.
Owner:SUZHOU HUANTA NETWORK TECH CO LTD

BCI-based aircraft control system

The invention discloses a BCI-based aircraft control system including an EEG acquisition device, a portable EEG signal processing controller and a four-rotor aircraft. The EEG acquisition device includes an open-source brain wave device and a serial communication module. When a user issues a command, the EEG signal is transmitted to the portable EEG signal processing controller. The portable EEG signal processing controller includes a Linux embedded processor and a wireless communication module, when the Linux embedded processor receives the EEG signal and identifies the corresponding instruction, the instruction is sent to the four-rotor aircraft via the wireless transmission module. The four-rotor aircraft is equipped with a flight controller and attitude sensors, and the flight controller receives the corresponding construction through the wireless port and controls the aircraft to generate the specified action and the corrections is carried out according to the feedback attitude of the attitude sensors. The system is suitable for aerial photography, rescue, entertainment and other application scenes, and is helpful for simplify the flight control of the four-rotor aircraft and reduce the accidental crash.
Owner:NANJING UNIV OF POSTS & TELECOMM

Excavator control device based on position control

The invention provides an excavator control device based on position control. An excavator bucket angular displacement sensor, a bucket rod angular displacement sensor and a movable arm angular displacement sensor are used for measuring excavator bucket angular displacement sensor measuring angles, bucket rod angular displacement sensor measuring angles and movable arm angular displacement sensor measuring angles. A display controller is used for receiving the work mode selected by a driver, displaying the positions of cross handles, the position of the excavator bucket angular displacement sensor, the position of the bucket rod angular displacement sensor and the position of the movable arm angular displacement sensor to the driver, and calculating the control instructions to pilot electromagnetic valves of an excavator bucket, a bucket rod and a movable arm so as to control the corresponding pilot electromagnetic valves. According to the excavator control device based on position control, the bucket rod and the movable arm can be subjected to compound control only through simple operation, so that the hinge joints of the excavator bucket are horizontally kept or longitudinally kept, or an included angle is formed between bucket teeth of the excavator bucket and a bottom plane, and the control steps for conducting complex action by the driver of an excavator are greatly simplified.
Owner:XIAN FLIGHT SELF CONTROL INST OF AVIC +1

Easily controlled efficient aeration tank

The invention discloses an easily controlled efficient aeration tank which comprises a tank body, a stirring shaft, two cylinders and a cross pipe. A door-shaped frame is fixed at the top of the tankbody, a motor is mounted on the door-shaped frame, the stirring shaft is fixed at an output end of the motor, the lower end of the stirring shaft extends in the tank body, a plurality of stirring blades are arranged on a shaft body of the stirring shaft in the tank body, cross shafts are symmetrically arranged on the left side and the right side of the top of the stirring shaft, the two cylindersare symmetrically arranged on the left side and the right side of the shaft body, and the cross pipe is fixed at the bottom of the tank body through a support. The aeration tank is compact in structure, functional components are mutually matched, sewage treatment efficiency can be effectively improved and driven by one motor, control difficulty is greatly reduced, and convenience is provided for operators.
Owner:柳州弘蓝科技有限公司

Feeding mechanical arm and feeding method thereof

The invention relates to the technical field of collaborative mechanical arms and provides a feeding mechanical arm and feeding method thereof. The feeding mechanism arm comprises a base, a mechanicalarm body and a feeding device. The bottom end of the mechanical arm body is rotatably connected to the base; the feeding device arranged at the top end of the mechanical arm body. During use, the mechanical arm can fetch food from a position with specified clamping coordinates and send the food to the position with specified feeding coordinates for eating of users. A current sensor detects the current change in a steering engine, so that a food fetching process is controlled; when collision accident occurs, the feeding device can be controlled to stop timely, so that the automation degree ishigh and the mechanical arm can be used in combination with multiple kinds of tableware. When a user applies force to the feeding device, the intent of the user can be identified automatically, re-food fetching can be realized, so that the operability is improved, the mechanical arm is more intelligent and the control difficulty is reduced for users. The feeding mechanical arm is suitable for promotion and use.
Owner:上海秘塔网络科技有限公司

Pod propelled ship maneuvering vector control device

The invention a pod propelled ship maneuvering vector control device, comprising a single-handle control unit, a pod propeller, a lateral propeller, and a pod control system, wherein the single-handle control unit is mounted on a ship driving console, the pod propeller is mounted at the bottom of a ship, the lateral propeller is mounted in a bow channel, and the pod control system is mounted in a cabin; the single-handle control unit is connected with the pod control system through a wireless signal, and the pod propeller and the lateral propeller are connected with the pod control system through signal wires. The problem that a pod propelled ship is difficult to maneuver and complex to control is solved, maneuverability of the pod propelled ship can be significantly improved, and the vector control device has the advantages such as control simplicity and lower energy consumption.
Owner:WUHAN UNIV OF TECH

Multi-path reversing device of lorry-mounted crane

The invention discloses a multi-path reversing device of a lorry-mounted crane. The multi-path reversing device comprises an oil inlet oil path, an oil return port, an amplitude changing reversing valve used for operating three actions including ascending, stopping and descending of an amplitude changing oil cylinder, a telescopic reversing valve used for operating three actions including stretching out, stopping and contracting back of a telescopic oil cylinder, a winch reversing valve used for operating three actions including ascending, stopping and descending of a winch motor, and a rotation reversing valve used for operating three actions including the forward action, stopping and the reverse action of a rotation motor, and a functional module. The amplitude changing reversing valve and the telescopic reversing valve are connected with the two ends of the oil inlet oil path in parallel, the rotation reversing valve, the functional module and the oil inlet oil path are connected in series, and after being gathered, the telescopic reversing valve and the functional module are sequentially connected with the winch reversing valve and the oil return port in series. According to the device, five composite actions including amplitude changing and winching, amplitude changing and rotation, telescoping and winching, telescoping and rotation and rotation and winching are achieved, composite actions can be achieved without a proportional multi-path valve, cost is effectively reduced, and the cost performance of straight arm lorry-mounted cranes is improved.
Owner:XCMG XUZHOU TRUCK MOUNTED CRANE

Novel cold flame spraying decoration device

The invention provides a novel cold flame spraying decoration device. The device comprises a feeding mechanism, a heating mechanism, a feeding and blowing mechanism and a spraying mechanism which areconnected in sequence, an airflow sent by the feeding and blowing mechanism is divided into two paths, one path and the feeding mechanism are communicated, and the other path is communicated with thespraying mechanism. The device has the advantages that the structure is simpler, the design is more reasonable, and the spraying decoration effect is better.
Owner:CHANGSHA SPARK TECH ELECTRONICS CO LTD

Power failure detection device and using method thereof

The invention discloses a power failure detection device and a using method thereof, and belongs to the technical field of power systems. The power failure detection device comprises an unmanned aerial vehicle, an electric leakage detector and a clamping base, wherein two symmetrically-arranged adjusting grooves are formed in the top of the clamping base; sliding rods are fixedly arranged on innerwalls of the adjusting grooves; sliding blocks are slidably connected to outer walls of the sliding rods; clamping springs arranged on the sliding rods in a sleeving way are arranged on side of eachsliding block; clamping blocks are fixedly connected to top ends of the sliding blocks; clamping grooves matched with the electric leakage detector are formed inside the clamping blocks; and the electric leakage detector is clamped in the clamping grooves. Through the adoption of the power failure detection device, the electric leakage detector can be moved only by controlling the unmanned aerialvehicle; manual supporting and moving are not needs; time and labor are saved; the detection efficiency is improved; the detection difficulty is reduced; the stability is high; the unmanned aerial vehicle is not prone to deviating from a cable; the electric leakage detector can automatically swing back and forth in the detection process; and the detection accuracy is guaranteed.
Owner:霍敏

Well drilling accelerating mechanism

The invention relates to the technical field of petroleum geology drilling tool, in particular to a well drilling accelerating mechanism. The technical problems that an existing drill bit driving drill does not have the drilling pressure extension capacity, and the drill bit rock breaking capacity cannot be improved are solved. The well drilling accelerating mechanism comprises a circumferential buffer accumulator, an axial buffer accumulator and a connecting assembly; one end of a torsional spring component is connected with a connecting component, and the other end of the torsional spring component is connected with a drilling tool output shaft or a power component; the axial buffer accumulator comprises a guide spindle and a disc spring component; the guide spindle is installed on the drilling tool output shaft or the power component; the disc spring component is installed on an outer circle of the guide spindle. Accordingly, the instantaneous rotational speed of a drill bit can beadjusted, the rock breaking efficiency of the drill bit is improved, the working life of the drill bit is prolonged, the effective action distance of drill pressure can be extended, the effective working time of the drilling tool can be prolonged, a torque fluctuation peak value of the drilling tool is reduced, the drilling speed is increased, and the drilling quality is improved.
Owner:李少江

Torque distribution method, device and system

The invention discloses a torque distribution method, a device and a system which are used for reducing the control difficulty of a vehicle and improving the driving safety of the vehicle. The method comprises the steps that when a vehicle runs on a target road surface, preset parameters of the vehicle are acquired; determining whether front wheels and rear wheels of the vehicle slip or not according to the preset parameters; when the front wheels and / or the rear wheels of the vehicle slip, the torques of the front wheels and the rear wheels are adjusted according to the slip rates of the front wheels and the rear wheels of the vehicle, and the current slip rates of the front wheels and the rear wheels are in negative correlation with the distributed torques. By adopting the scheme provided by the invention, the control difficulty of the vehicle is reduced, and the driving safety of the vehicle is improved.
Owner:恒大恒驰新能源汽车研究院(上海)有限公司

Method and device for forming optical waveguide in air by ultra-short pulsed intense laser

The invention provides a method and device for forming an optical waveguide in air by an ultra-short pulsed intense laser. To be specific, the method comprises: a beam shaping device and a focusing lens are arranged at an output terminal of an ultra-short pulse laser along an axis direction; a laser beam passing through the beam shaping device forms a laser beam with a hollow conical shape and thelaser beam is transmitted independently, wherein the cross section intensity is in circular-ring distribution; and when the laser beam passes the focusing lens, an annular light spot is formed at thefocusing plane and an annular symmetric filament is generated based on a non-linear effect. When the filament is formed, air ionization is caused by the intense laser and thus plasma is generated; and the plasma is a heat source and the air density of the ionized region is low and thus the refractive index is low. Comparatively speaking, the air density inside the cylinder as a non-ionization region is high and thus the refractive index is high, so that a cylindrical symmetric optical waveguide structure is formed. Because the thermal conductivity of air is low and the time needed by thermalbalancing is at an ms order or longer, an optical waveguide with the millisecond service life is formed. Besides, the optical waveguide can be used for transmitting laser beams with different modes bycontrolling a circular ring distribution parameter of the pulse laser.
Owner:SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES

Convenient-to-operate textile drying oven

The invention relates to the technical field of textile drying ovens, in particular to a convenient-to-operate textile drying oven. The convenient-to-operate textile drying oven comprises a drying oven body. A third sliding chute is formed in the inner upper portion of the drying oven body. A third sliding block is slidably connected to the side wall of the third sliding chute. The bottom end of the third sliding block is fixedly provided with a linear driving plate. Two sides of the top end of the linear driving plate are movably connected with two telescopic rods in a penetrating mode. The bottom ends of the two telescopic rods are fixedly connected with lifting plates. One side of each telescopic rod is fixedly connected with a limiting plate. The two limiting plates are symmetrically arranged in a coplanar mode. Clamping plates are fixedly connected to the middles of the bottom ends of the limiting plates. A conveying belt is fixedly arranged in the inner middle of the drying ovenbody in a penetrating mode. According to the convenient-to-operate textile drying oven, a pressure alleviating plate, the telescopic rods, the lifting plates and the linear driving plate are combined,the technical problem of manually dragging and arranging textile products before working of the textile drying oven is solved, manual work is replaced by machinery, a large amount of labor force is reduced, and therefore the working efficiency of the textile drying oven is improved.
Owner:杭州锦绣工坊工艺品有限公司
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