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857 results about "Force direction" patented technology
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Folding cart
ActiveUS12485944B2Hand carts with multiple axesHand cart accessoriesClassical mechanicsStructural engineering
A folding cart comprises a front frame, a rear frame, a side frame arranged between the front frame and the rear frame and used for expanding and folding, and a release mechanism used for restricting or releasing restriction on the folding of the side frame. A force direction applied to trigger the release mechanism is the same as that applied to fold the side frame, the side frame is driven to fold after the release mechanism releases the restriction on the folding of the side frame. In the folding cart, after an external force is applied to trigger the release mechanism to release the folding restriction, the external force in the same direction can be continuously applied to directly drive the side frame to fold. A user only needs to apply force in a single direction to complete dual tasks of unlocking and folding one after another.
Owner:ZHONGSHAN KANGLAIYA TRADE CO LTD
Man-machine interaction system and method for robot training and data acquisition
According to the man-machine interaction system and method for robot training and data acquisition, a main device instruction system captures an operator hand posture generation instruction through a wearable sensor of an action acquisition subsystem, and meanwhile, the direction and strength information of force is transmitted by means of an annular vibration motor array of a tactile feedback subsystem; the data processing system is responsible for converting the attitude instruction into a mechanical arm control signal and processing feedback force data; the slave equipment responds to a multi-degree-of-freedom mechanical arm execution instruction of the system, and a force sensor collects environment interaction force data and transmits the environment interaction force data back; a robot self-learning module trains a diffusion model by using synchronously acquired time-aligned vision, trajectory and force feedback multi-modal data sets, a tactile feedback subsystem realizes force information transmission through single-motor direction mapping and PWM wave adjustment, and the self-learning module adopts DDIM to accelerate reasoning to generate an action sequence. And the autonomous operation capability of the robot in a complex scene is improved.
Owner:TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL
Wafer bonding pressure control mechanism and method
The invention relates to the technical field of wafer bonding devices, in particular to a wafer bonding pressure control mechanism and method. The mechanism comprises a main driving unit and a bonding pressing rod linked with the main driving unit, the main driving unit drives the bonding pressing rod to move in the bonding pressure direction, bonding pressure is applied to a wafer through the bonding pressing rod, the bonding pressing rod is linked with the main driving unit through a pressure maintaining air cylinder, and the bonding pressing rod is arranged at the tail end of a piston rod of the pressure maintaining air cylinder; a displacement sensor is further included, the displacement change of the bonding pressing rod is detected through the displacement sensor, and the displacement sensor is electrically connected with the main driving unit. The main driving unit and the pressure maintaining air cylinder are combined to form a composite operation control system, the bonding pressure is controlled and adjusted by controlling the air pressure of the pressure maintaining air cylinder, and the stability of the bonding pressure is ensured.
Owner:DONGGUAN ATTACH POINT INTELLIGENT EQUIP CO LTD
Non-directional force sensor control method and system based on real-time force trend prediction
ActiveCN120620240AProgramme-controlled manipulatorBiological modelsProportional integral differentialDifferential coefficient
The embodiment of the invention provides a non-directional force sensor control method and system based on real-time force trend prediction, and the method comprises the steps: collecting a real-time force signal sequence generated when a target mechanical device carries out the contact operation, and inputting the real-time force signal sequence into a pre-trained force trend prediction model; and obtaining a force direction trend prediction result output by the force trend prediction model, generating a multi-dimensional force compensation signal according to the matching degree of the force direction trend prediction result and the current closed-loop control parameter, adjusting a proportion-integral-differential coefficient in the current closed-loop control parameter based on the multi-dimensional force compensation signal, generating an updated closed-loop control parameter, and outputting the updated closed-loop control parameter. The updated closed-loop control parameters are input into an actuator of the target mechanical device, and the contact operation track of the target mechanical device is dynamically adjusted through the actuator according to the updated closed-loop control parameters, so that the multi-dimensional force amplitude data output by the non-directional force sensor are converged to a preset force control target interval. The response speed and stability of the force control system can be improved.
Owner:BEIJING HANGXING TRANSMISSION TECH CO LTD
Spring with positioning ring and elastic cushion
The invention discloses a spring with positioning rings and an elastic cushion comprising the spring, the spring comprises a spring body formed by spiral encircling, two ends of the spring body are encircled to form end face rings, the spring body is provided with at least one group of positioning rings, and the positioning rings are encircling rings of the spring body. The positioning ring is approximately parallel to the end face ring or approximately perpendicular to the elastic force direction of the spring body. The distance between the surrounding ring and the stress end is at least one fourth of the length of the spring. At least one group of positioning rings are designed on the spring body, the positioning rings are surrounding rings on the spring body, and the length of the positioning rings is larger than or equal to 1 / 2 of the circumference. The positioning ring is roughly parallel to the end face ring or roughly perpendicular to the elastic force direction of the spring body, in the follow-up assembling process, the connecting waist ring can be positioned, displacement of the connecting waist ring in the using process is effectively prevented, and convenience and stability of connection between the springs are improved.
Owner:NEW TEC INTEGRATION (XIAMEN) CO LTD
Flywheel unloading method in position protection period based on electric push mechanical arm
The invention provides a flywheel unloading method based on an electric pushing mechanical arm in a position protection period. The flywheel unloading method comprises the steps that a joint corner combination is selected when the thrust direction is in a position protection allowable range; the control torque under the joint rotation angle combination of each mechanical arm is determined, and an initial table look-up matrix is established; determining an optimal torque and a torque error allowable range; according to the control torque, the optimal torque and the torque error allowable range, grade division is conducted on the joint corner combination; constructing a cost function according to the optimal torque and the control torque; on the basis of grade division, the smaller the cost function is, the higher the priority of the joint corner combination is; selecting a joint corner combination with the highest priority from the initial look-up table matrix, performing permutation and combination of joint corners around the joint corner combination in a fine step length manner, determining a corresponding control moment, forming a second-order look-up table matrix, and selecting a joint corner combination with the highest priority; and circularly selecting the joint corner combination with the highest priority to obtain a final joint corner combination.
Owner:SHANGHAI AEROSPACE CONTROL TECH INST
Personal aircraft chassis and personal aircraft
The invention provides a personal aircraft chassis and a personal aircraft. The chassis comprises a main framework and a chassis body, the personal aircraft comprises a main framework and a thrust array assembly, the thrust array assembly is fixed to the main framework, thrust of the thrust array assembly is achieved through a plurality of first turbojet engines, the geometric position relation between the thrust action point and the thrust direction of the thrust array assembly and the main framework is kept fixed, and when the personal aircraft stops on the ground, the thrust array assembly is fixed to the main framework. The thrust direction of the thrust array assembly is perpendicular to the ground. The vector nozzle assemblies are fixed to the main framework, thrust of the vector nozzle assemblies is achieved through the second turbojet engines, the central axes of the second turbojet engines are perpendicular to the central axis of the first turbojet engine, and vector nozzles of the vector nozzle assemblies at least have one degree of freedom relative to the main framework. And high-dynamic, high-fault-tolerance and reconfigurable flight control which cannot be realized by utilizing pure thrust difference control can be realized.
Owner:WUJIE EXPLORATION (SHANGHAI) TECHNOLOGY CO LTD
Detection equipment for hydraulic engineering pipeline
The invention is suitable for the technical field of pipeline detection, and provides a hydraulic engineering pipeline detection device which comprises a detection table, a sliding frame and a driving frame, the driving frame is fixedly connected to the detection table, the sliding frame is in sliding fit with the detection table, and the hydraulic engineering pipeline detection device further comprises a pressure applying assembly which is arranged on the driving frame and used for conducting pressure detection on a pipeline, the pressure applying assembly comprises a sliding table slidably connected into the driving frame, a motor is installed on the wall face of the sliding table, the output end of the motor is fixedly connected with a gear shaft, and the side, away from the motor, of the gear shaft is fixedly connected with a first supporting plate. The device has the beneficial effects that through the change of the meshing state of the movable toothed pipe and the driven gear and the change of the limiting state of the toothed plate in the first supporting plate by the clamping block, the detection effects of various different stress directions can be switched and achieved according to the detection requirements when the pressure applying assembly applies pressure to the pipeline, and the detection efficiency is improved. And the equipment can realize various different pressure applying functions through a simple mechanical structure.
Owner:ANHUI & HUAI RIVER WATER RESOURCES RES INST
Method for measuring grinding force of external thread of roller screw
The invention discloses a roller screw external thread grinding force measuring method. The method comprises the steps that a to-be-measured screw is installed on an external thread grinding machine tool in the mode that the to-be-measured screw is clamped by tips at the two ends of the machine tool; the two mechanical sensors are installed at the center position right facing the lead screw to be measured and face the normal grinding force direction and the tangential grinding force direction respectively; a to-be-measured lead screw clamped by double tips is regarded as a simply supported beam structure of which one end is fixed and hinged and the other end is movable and hinged, a mechanical sensor is regarded as an elastic support, a mechanical model is established, and the relationship among the measurement result of the mechanical sensor, an actual method and tangential grinding force at different grinding positions is obtained; and according to the measurement result of the mechanical sensor, the actual method and the tangential grinding force are obtained by utilizing the relation between the measurement result of the mechanical sensor at different grinding positions and the actual method and the tangential grinding force, and the actual grinding force is obtained after vector superposition. The device has the characteristics of clear and definite measurement principle, accurate and reliable measurement result, simple structure and convenience in assembly.
Owner:BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
Sealing ring for groove connection
The utility model discloses a sealing ring for groove connection for a high-pressure pipeline, which is matched with a hoop and comprises a rubber ring, a sealing ring and an elastic semi-ring, the sealing ring is located in the middle of the inner surface of the rubber ring and installed at the joint of the end faces of the two steel pipes, and the inner diameter is not larger than that of the steel pipes. The clamp and the inner side of the groove are in slope fit to provide sealing extrusion force for the end face of the steel pipe. The elastic semi-ring is arranged on the outer surface of the rubber ring or fixed in the rubber ring, and the assembling surface of the elastic semi-ring is consistent with the pre-tightening force direction of the bolt; or more than two sets of elastic semi-rings are uniformly distributed in the axial direction, and the splicing surfaces are mutually staggered. Or a cavity is formed in the rubber ring, passes through an inner opening in the inner end face of the inner pipe sealing ring, or is communicated with the outer pipe extending out of the outer side of the hoop. The utility model has the advantages of double sealing, good sealing performance and convenience in installation.
Owner:LIAONING HONGHAI XINXIN SEALING TECHNOLOGY CO LTD
Device and method for measuring size of cable force and position of lug plate
Owner:BEIJING UNIV OF TECH
Support for arthroscopic surgery in sports medicine
The invention relates to the technical field of arthroscopic surgery instruments, in particular to a support for a sports medicine arthroscopic surgery, which comprises a support, a lifting platform and a leg fixing mechanism, and the lifting platform locks the height position of the leg fixing mechanism on the support through a limiting bolt; the leg fixing mechanism comprises a fixed frame fixedly connected with the lifting table and a movable frame hinged through a rotating connector. The pull rope is wound around the guide wheel in the sliding rail box to be connected with the shank binding belt, and when the knee joint bends and stretches, the second spring pushes the sliding block to move in a self-adaptive mode; during knee bending, the spring extends to compensate looseness of the pull rope; when the knees stretch, the springs are compressed to absorb redundant tension. The tensile force is always perpendicular to the shank axis through mechanical decomposition, and lateral shearing force is eliminated. A spring dynamic compensation mechanism maintains constant upward effective component force, pulling force direction deviation caused by a traditional fixed fulcrum is avoided, unexpected internal rotation during shank lifting is fundamentally restrained, and knee joint ligaments are protected against abnormal stress damage.
Owner:乐清市人民医院
Picking machine for driving fruit trees to do elliptical reciprocating motion
The utility model provides a picking machine for driving fruit trees to do elliptical reciprocating motion, and belongs to the field of agricultural machinery. The picking machine comprises a machine body, a reversing eccentric rotation mechanism and a clamping mechanism; the reversing deflection rotation mechanism is fixed to the machine body and provided with a first input part and a first output part, the input force direction of the first input part is perpendicular to the output force direction of the first output part, and the first input part is connected with an external driving device. One end of the clamping mechanism is rotationally connected with the first output part and does circular motion with the rotating center of the first output part as the circle center, and the other end of the clamping mechanism is connected with an operation fruit tree. According to the picking machine, rigid excitation is achieved through the simplified reversing deflection rotating mechanism and the clamping mechanism, the operation fruit trees are driven by the deflection rotating vibration mechanism to do elliptical reciprocating motion, the fruit falling rate of the operation fruit trees, especially transverse branches, is remarkably increased, the optimal operation efficiency can be achieved with the minimum energy consumption, and the labor intensity of workers is lowered. The device has the advantages of compact structure, low cost, reliable operation, low failure rate and the like.
Owner:HANGZHOU WANGCHAO AGRICULTURAL TECHNOLOGY CO LTD
A robot for detecting a cable of a cable-stayed bridge
ActiveCN117026801BBridge structural detailsUsing optical meansStructural engineeringSteering control
The application provides a robot for detecting a cable of a cable-stayed bridge, comprising a robot body, a guide wheel mechanism arranged on an inner wall of the robot body, two steering control mechanisms arranged symmetrically on an outer wall of the robot body, and a ducted fan connected to the steering control mechanisms and used for controlling a thrust direction of the ducted fan.
Owner:SHANGHAI XIQU VALLEY TECHNOLOGY CO LTD
Stretching detection system based on cloth detection
ActiveCN120721505AMaterial strength using tensile/compressive forcesInvestigating abrasion/wear resistanceSelf adaptivePhysics
The invention provides a stretching detection system based on cloth detection, and relates to the technical field of cloth detection. A graduated scale is fixed on the seat body, a rotating shaft is rotationally arranged on the seat body, a rotating seat A is welded to one end of the left side of the rotating shaft, a clamping block A is rotationally connected to the rotating seat A, a sliding seat A is welded to the top end face of the clamping block A, and a clamping block B is arranged on the sliding seat A in a sliding mode. The clamping block A and the clamping block C flexibly rotate through the rotating seat A and the rotating seat B respectively, when the cloth inclines due to clamping deviation, the two rotating structures can drive the clamping blocks to adjust the direction in a self-adaptive mode in the stretching process, and test errors caused by pulling deviation are effectively counteracted. Meanwhile, the spring rod A and the spring rod B provide elastic support for the clamping block A and the clamping block C respectively, the clamping blocks are kept in a non-inclined state through the elastic force effect in the initial clamping stage, the clamping angle deviation is avoided from the source, and it is ensured that the stress direction of the cloth is consistent with the height required by the test.
Owner:NANTONG DISHUN INTERLINING CO LTD
Method and system for determining three types of cyclic stresses for evaluating service life of wheel disc
The invention relates to the technical field of aero-engines, and discloses a three-class cyclic stress determination method and system for wheel disc life evaluation, and the method comprises the steps: carrying out the stress finite element simulation analysis of a wheel disc under a transient load, so as to obtain the stress history of a key part of the wheel disc at each time point in the same stress direction and at the same temperature; and constructing a stress inflection point course of the key part of the wheel disc according to stress inflection points in the stress course so as to realize determination and extraction of three types of cyclic peak-valley value stress. The method not only considers the influence of transient load, but also ensures that stress analysis is carried out under a unified direction reference through conversion of the direction cosine matrix, so that stress data and life data at different time points can be compared under the same temperature and stress direction conditions, thereby providing support for effective determination of fatigue damage of the wheel disc, and improving the accuracy of fatigue damage determination of the wheel disc. The situation that in the prior art, the stress direction difference is not considered, so that deviation danger exists when fatigue damage of the wheel disc is analyzed according to three kinds of cyclic stress is avoided.
Owner:AECC SICHUAN GAS TURBINE RES INST
Force direction feedback system and method for pneumatic pressure
PendingCN121253029AFluid pressure measurement using capacitance variationSignal correlationNoise threshold
The invention provides a force direction feedback system and method of pneumatic pressure. The system generates a first oscillation signal changing along with air pressure and a second oscillation signal with fixed frequency through a signal conversion module; and the counter counts the cycles of the two paths of oscillation signals. The back noise calibration module samples environment back noise by using a second oscillation signal in a frequency division manner, and eliminates back noise interference in a force count value through a subtractor, so that the problem of detection deviation caused by environment air pressure fluctuation is solved; and the dual-threshold comparison module screens the difference signal through a back noise threshold and an anti-shake threshold, generates a force conversion value, and avoids error output caused by slight fluctuation and shake. The differential operation module processes the force conversion value in combination with the second oscillation signal, the accurate pneumatic force value is output through signal correlation, the pneumatic direction can be distinguished by means of comparison with the fixed reference, and finally accurate and stable feedback of the pneumatic pressure force and direction is achieved.
Owner:SHENZHEN LIXIN SEMICON CO LTD
Torsion bar elastic constraint spherical steel support
The utility model discloses a torsion bar elastic restraint spherical steel support which comprises a longitudinal spherical steel support, the longitudinal spherical steel support comprises a fixed support bottom plate located at the bottom, a support bottom basin is arranged on the support bottom plate in a sliding mode, a torsion bar assembly for restraining and limiting is arranged on the support bottom plate, and the longitudinal spherical steel support comprises a longitudinal spherical steel support body. The torsion bar assemblies are arranged on the two opposite side faces of the support bottom basin. Horizontal movement of the pin shaft end of the torsion arm is restrained through the side plate slide way, rigid rotation of the torsion arm is achieved when the support moves, and the torsion arm rotates to drive the torsion rod spring to twist; a connecting rod assembly is removed, so that the structure is more compact; and the direction of external force is parallel to the axis of the fixing bolt, so that the stress of the bolt is optimized, and the bridge support is more suitable for the application scene of the bridge support.
Owner:CHINA RAILWAY DESIGN GRP CO LTD
Radiology holding unit for a radiology device
Radiology holding device for a radiology apparatus comprises an attachment device and pivotally accommodated thereat, a supporting arm with at least one axle component and a supporting component. A locking device is provided for locking the supporting arm in at least one locking position. An actuating mechanism actuates the locking device. A patient may grip a holding device attached to the supporting arm. The axle component of the supporting arm is pivotally accommodated on the attachment device. The actuating mechanism comprises a force direction unit that locks force transfer in one direction, so as to specifically transfer to the locking device an operating force introduced into the flexible pull member for actuation.
Owner:FEBROMED GMBH & CO KG
Hinge and earphone box
Owner:JITS COMM CO LTDGD
Alloy casting detection device with tensile property detection function
The invention discloses an alloy casting detection device with a tensile property detection function, and relates to the technical field of metal tensile testers, the detection device comprises a bottom table, a control panel, an ultrasonic detector, a dynamic mechanism, a tensile mechanism and a clamping mechanism, the dynamic mechanism comprises an assembly plate and a lock pin mechanism, the stretching mechanism comprises a side frame and a sliding table, each clamping mechanism comprises a wedge-shaped shell and assembling plates, one assembling plate is fixedly connected with the side frame, the other assembling plate is fixedly connected with the sliding table, the lock pin mechanism comprises an electric control lock pin, the electric control lock pin is fixedly connected with the wedge-shaped shell, and the side frame and the control panel are both fixedly connected with the bottom table. The ultrasonic detector is fixedly connected with the side frame, and the ultrasonic detector, the dynamic mechanism and the stretching mechanism are all connected with the control panel through electric signals. Tensile load is applied to the alloy casting, ultrasonic detection is carried out, the load stress direction is actively changed, torque load is applied, the actual working condition is simulated, and the detection accuracy is improved.
Owner:BAOJI YONGSHENGTAI TITANIUM IND
True triaxial mechanical test device applied to variable-angle repeated loading and impact disturbance
The utility model relates to the technical field of rock mechanical tests, in particular to a true triaxial mechanical test device applied to variable-angle repeated loading and impact disturbance, which comprises a variable-angle transmission mechanism. The variable-angle transmission mechanism comprises a variable-angle transmission main body, variable-angle transmission assemblies symmetrically arranged at the two ends of the variable-angle transmission main body, a box body arranged on the peripheries of the variable-angle transmission main body and the variable-angle transmission assemblies and a force transmission assembly arranged on the box body, and the variable-angle transmission main body comprises a plurality of transmission modules arranged in an array mode in the circumferential direction of the Y axis; the variable-angle transmission assembly comprises a transmission rod and a limiting transmission plate, the limiting transmission plate is arranged in the test piece containing cavity, the transmission rod is fixedly connected with the limiting transmission plate, and when the transmission rod rotates, the limiting transmission plate is driven to rotate so as to drive the variable-angle transmission main body to rotate; therefore, the rock test piece arranged in the test piece accommodating cavity rotates, and the stress direction angle of the roadway in the rock test piece is changed.
Owner:ANHUI UNIV OF SCI & TECH
Cable tensioning detection device
The utility model provides a cable tensioning detection device, which relates to the technical field of force measuring devices and comprises a fixed support, a pressure sensor, a fixed pulley support, an elastic reset piece and a fixed pulley. The pressure sensor is fixedly connected with the fixed bracket or the fixed pulley bracket; the fixed pulley support is slidably arranged relative to the fixed support in the stress direction of the pressure sensor. The two ends of the elastic reset piece are connected with the fixed support and the fixed pulley support correspondingly and used for resetting the fixed pulley support after sliding. The fixed pulley is rotationally mounted on the fixed pulley bracket and is used for lapping a cable of which the tension is to be measured; according to the device, the current tension degree condition of the cable can be obtained according to the pressure of the cable on the fixed pulley, whether the liquid level probe is clamped or not is judged according to the tension degree condition of the cable, then the reel is controlled to stop winding or unwinding the cable, and the problem that the cable is stacked and knotted or snapped is avoided.
Owner:SDIC XINJIANG LUOBUPO POTASH CO LTD
Tilting type composite thrust system of small fixed-wing aircraft
The invention relates to the field of unmanned aerial vehicles, and discloses a tilting type composite thrust system of a small fixed-wing aircraft, comprising: a physical bearing and power unit module comprising wings and six groups of tilting thrust units on the wings, each group of unit being composed of a turboprop engine and a variable pitch propeller and generating thrust; the thrust vector adjusting module comprises six sets of electric tilting joints and drives the tilting thrust unit to rotate so as to adjust the thrust direction. The state sensing and feedback module is provided with an angle sensor for monitoring the tilting angle in real time; the cooperation and synchronization control module comprises a synchronization controller which is connected with the angle sensor and the electric tilting joints and controls the six sets of electric tilting joints to be converted in batches according to the monitored angle. According to the invention, the integrated electric tilting joint is arranged, and the joint contains a main tilting shaft for wide-angle mode switching and an auxiliary fine tuning shaft for small-range active compensation, so that two adjusting mechanisms with different functions are integrated in a single structure.
Owner:FUTURE AVIATION CLUB (HUBEI) CO LTD
Amphibious vehicle underwater steering control method and system based on angle module
The invention provides an amphibious vehicle underwater steering control method and system based on an angle module, and belongs to the technical field of amphibious vehicle control. According to the selection of a driver, the amphibious vehicle is judged to be in normal steering, pivot steering and crab steering in water; when the vehicle normally steers in water, left / right side wheel turning angles are calculated according to the steering wheel turning angle; when the vehicle is in pivot steering in water, the wheels recover to the initial state and are parallel to the vehicle body; when the vehicle is in crab-shaped steering in water, the four corner modules of the vehicle conduct corresponding steering according to steering wheel signal input. In the normal steering mode, according to the calculated steering angle of the vehicle, wheels on one side steer; in the pivot steering mode, wheels on the two sides of the vehicle are controlled to move forwards or backwards; according to the crab steering mode, wheels on the two sides of the vehicle conduct corresponding steering, and the wheels on the two sides are controlled to move forwards or backwards. By controlling the steering angle of the wheels, the thrust direction of the vehicle is changed, and high-precision underwater course control is achieved.
Owner:JILIN UNIVERSITY
Upper supporting roll balancing device of finishing machine
The utility model provides an upper supporting roll balancing device of a finishing machine. The upper supporting roll balancing device comprises a rack, the driving mechanism is used for simultaneously outputting two groups of horizontal forces in opposite directions; the force conversion mechanism is used for correspondingly converting each group of horizontal force into a group of force in the vertical direction at the same time; each group of vertical force has the same direction; the first end of the pull rod mechanism is connected with the force conversion mechanism, and the second end of the pull rod mechanism is matched with the T-shaped groove in the top of the upper supporting roller bearing seat. Therefore, the acting force in the horizontal direction and the acting force in the vertical direction are synchronously converted through a single driving source, the problem of poor synchronism caused by independent work of multiple traditional hydraulic cylinders is solved, the inclination risk in the lifting process of the upper supporting roller is prevented, and potential safety hazards of equipment are eliminated; meanwhile, complex detection elements such as a displacement sensor are omitted, the system structure is simplified, the equipment cost and the failure rate are reduced, and stable lifting of the upper supporting roller under the two working conditions of pushing-in and pushing-out is achieved.
Owner:CHINA NAT HEAVY MACHINERY RES INSTCO
Underwater robot advancing control method and device and medium
ActiveCN121179912AAmphibious vehiclesVehicle position/course/altitude controlControl engineeringControl theory
The invention relates to an underwater robot advancing control method and device and a medium, and the method comprises the steps: detecting the sliding state of a crawler belt of a robot, and obtaining operation parameters; controlling a vertical propeller system of the robot according to the sliding state of the track to adjust the ground pressure of the track and stabilize the posture of the robot; in the process of controlling the vertical thruster system, thrust instructions of all vertical thrusters are calculated and output based on the real-time posture and motion state of the robot; according to the operation parameters, dynamic interference generated by the operation tool to the robot is calculated; on the basis of the dynamic interference, compensation thrust and compensation torque which need to be provided by the horizontal propeller system are calculated, and the rotation angle of the horizontal propeller is controlled to be aligned with the thrust direction; and the compensation thrust and the compensation torque are distributed to all the horizontal propellers, and thrust instructions of the corresponding horizontal propellers are output. According to the method, high stability, high trafficability and high operation efficiency of robot advancing are achieved in an uncertain complex seabed environment.
Owner:CRRC SMD (SHANGHAI) LTD
Cam-driven manipulator
The utility model discloses a cam-driven manipulator which comprises a material taking assembly, a mounting plate, a vertical moving assembly and a horizontal moving assembly, wherein the vertical moving assembly and the horizontal moving assembly are arranged on the two side faces of the mounting plate respectively. The vertical moving assembly comprises a vertical cam, a vertical moving plate and a vertical guide rod for driving the vertical moving plate to lift, and one end of the vertical guide rod is matched with the vertical cam; the horizontal moving assembly is arranged on the vertical moving plate and comprises a horizontal cam, a horizontal swing rod and a horizontal moving plate, and the material taking assembly is connected with the horizontal moving plate and moves in the horizontal direction under the cooperation of the horizontal swing rod and the horizontal cam. According to the structure, the horizontal moving assembly is arranged on the vertical moving plate and ascends and descends along with the vertical guide rod, and the vertical guide rod can ensure that a load ascends and descends stably in the vertical direction, so that the possibility of transverse deviation is reduced, and an accurate guide effect is provided for ascending and descending movement; and the main stress direction of the vertical guide rod is the axial direction, the bearing capacity is high, and the movement stability is good.
Owner:JIANGSU XINTIMU INTELLIGENT EQUIP CO LTD
A distance adjusting device for a rolling mill
The application provides a distance adjusting device for a rolling mill, which comprises a support frame, a support structure, an adjusting structure, a locking structure and two support seats. The support frame comprises a first frame, the support structure is installed inside the first frame, and the two support seats are slidingly installed on the support structure. The adjusting structure comprises a driving mechanism and a plurality of block groups, and the block groups are respectively clamped between the upper support seat and the top of the first frame, between the two support seats, and between the lower support seat and the bottom of the first frame. The driving mechanism is used to drive the block groups to move, the distance between the two support seats is changed by adjusting the embedding depth, and the clamping support of the top and bottom of the support seat is maintained. The locking structure is used to lock the adjusting structure. The position of the support seat is changed by embedding and pushing, so as to adjust the distance between the rolling mills, realize the effect of automatic distance adjustment, improve the efficiency and adjustment accuracy, and maintain the support of the main stress direction of the support seat by the embedding and pushing part.
Owner:QINGYUAN CHUJIANG HIGH PRECISION COPPER STRIP CO LTD
Novel longitudinal and transverse rotating magnetic conductive attraction expansion device
The invention relates to a novel longitudinal and transverse rotating magnetic conductive attraction expansion device. The invention relates to a novel longitudinal and transverse magnetic conductive attraction expansion device, which comprises a magnetic base body, a first magnetic base, a second magnetic base, a first connecting rod, a second connecting rod and a third connecting rod, the two bases are arranged below the magnetic base body, and the opening and closing directions of the two bases are perpendicular to the magnetic attraction force directions of the first magnetic base and the second magnetic base; the first translation assembly comprises two push rods arranged at an included angle, one ends of the two push rods are rotationally connected to the first base at the same time, and the other ends of the two push rods are rotationally connected to the first magnetic base and the second magnetic base respectively; the second translation assembly comprises two push rods arranged at an included angle, one ends of the two push rods are rotationally connected to the second base simultaneously, and the other ends are rotationally connected to the first magnetic base and the second magnetic base respectively. According to the novel longitudinal and transverse rotating magnetic attraction expansion device, traditional repulsive force is replaced by magnetic attraction force, and the problems that the distance between magnets is increased and the magnetic force is sharply reduced along with expansion of a dental arch of a traditional expansion device can be solved.
Owner:AFFILIATED STOMATOLOGICAL HOSPITAL OF NANCHANG UNIV (JIANGXI PROVINCIAL STOMATOLOGICAL HOSPITAL)