568 results about "Load force" patented technology

Systems, assemblies, and / or the like are provided. A fall protection system including an absorber assembly including an absorber body, wherein the absorber body defines a nose portion and a buffer portion, wherein the absorber body is configured to transition from a non-deformed state to a deformed state when the absorber body is subject to one or more loading forces, and wherein the buffer portion is configured to deflect against a rail when the absorber body transitions from the non-deformed state to the deformed state; and a shuttle body configured to secure the fall protection system to a rail. In some embodiments, the absorber body further defines one or more holes configured to distribute the one or more loading forces throughout the absorber assembly during deformation.

The invention discloses a method and a system for measuring a load force at a bridge steel structure connection position, and belongs to the field of bridge maintenance, the method comprises the following steps: constructing a bridge overall digital twin model, and carrying out refined modeling on a steel structure at the bridge steel structure connection position; a sensor is arranged at the steel structure joint of the bridge for real-time data acquisition, and it is ensured that the steel structure digital twinborn model can be dynamically updated; when new data collected by the sensor detection network are received, the digital twinborn platform adjusts parameters of the corresponding steel structure digital twinborn model according to the unique identifier of the sensor; carrying out load force analysis and dynamic prediction according to parameters in the steel structure digital twinborn model in combination with comprehensive data; and integrating to form a real-time visual platform, and displaying the stress condition of the connecting part through the real-time visual platform. According to the invention, the load force change at the joint of the bridge steel structure can be monitored in real time, and the safety of the bridge structure is improved.

The invention relates to the technical field of processing machine tools, and discloses an intelligent forming machine tool for metal processing machinery manufacturing, which comprises a rack, a transverse moving assembly, a linear motor, a workbench, a spindle motor and a frame body, an annular rail is arranged at the upper end of the rack, and two arc-shaped guide rails are jointly connected to the upper end of the annular rail; the two arc-shaped guide rails are installed on the two opposite sides of the frame body respectively, a propelling mechanism is installed in the frame body and used for fixedly installing a spindle motor, positioning assemblies for adjusting the inclination angle of the propelling mechanism are installed on the two opposite sides of the frame body, and a shell is arranged below the frame body. The shell is connected with the propelling mechanism and connected to an output shaft of the spindle motor in a sleeving mode, and an unbalance loading resisting mechanism is installed in the frame body. According to the intelligent forming machine tool manufactured through the metal machining machine, the machine tool can machine a workpiece of a special-shaped curved surface structure, and pressure can be actively applied to offset the unbalance loading force borne by the turning head and the transmission shaft.

Systems, assemblies, and / or the like are provided. In some embodiments, A fall protection system includes an absorber assembly including an absorber body, wherein the absorber body defines a nose portion and a locking portion, and wherein the absorber body is configured to transition from a non-deformed state to a deformed state when the absorber body is subject to one or more loading forces; and a shuttle body configured to secure the fall protection system to a rail, wherein the shuttle body defines a counter-locking portion configured to engage with the locking portion when the fall protection system is subject to the one or more loading forces. In some embodiments, the absorber body further defines one or more holes configured to distribute the one or more loading forces throughout the absorber assembly during deformation.

The utility model provides a sealing aging test device for multi-environment simulation. The sealing aging test device comprises an upper end cover, a lower end cover, a gasket, a to-be-tested sealing ring and a sealing ring, the gasket is arranged between each stage of lower end cover and the upper end cover, the to-be-tested sealing ring is arranged between each stage of lower end cover and the gasket, and the sealing rings are arranged between the gasket and each stage of upper end cover and between the middle upper end cover and the middle lower end cover; the end covers are connected through bolts, and the gaskets are in interference fit connection or threaded connection with the upper end covers; the end cover center hole channel forms a first flow channel, the outer side hole channel forms a second flow channel, and flow channel isolation is achieved through a sealing ring. The aging conditions of the sealing ring under different compression amounts can be tested by adjusting the thickness of the gasket, the influence of different unbalance loading forces on the aging performance of the sealing ring can be tested by adjusting the gradient of the first end face of the gasket, and the aging conditions of the sealing ring under different working conditions can be simulated by inputting media into the two flow channels. Multiple groups of upper and lower end covers can be continuously added in the device.

The present invention relates to an intelligent control method, device and equipment for a heavy-load robot, belonging to the field of heavy-load robots. The present invention calculates the torque information received by each lever arm in each operable posture according to the mass information of the goods and the operable posture data set of the heavy-load robot, and finally obtains the operating posture of the heavy-load robot in the process of picking and unloading goods according to the torque information received by each lever arm in the operable posture and the motion path of the position of the goods during the handling process, and controls the heavy-load robot according to the operating posture of the heavy-load robot in the process of picking and unloading goods. The present invention fully considers the change of the maximum load torque of each lever arm of the heavy-load robot under different operating postures, so that the heavy-load robot changes the operating posture according to the maximum load torque characteristics, which can increase the service life of the heavy-load robot, reduce the maintenance cost of the heavy-load robot, and make the control of the heavy-load robot more reasonable.

An electronic device and method for assembling an electronic device. The device includes a shielding structure at least partially, laterally surrounding an electrical component on a circuit board. The device further includes a lid affixed to the top of the shielding structure and covering the electrical component, a spring directly or indirectly applying a load force to the electronic component, and a fastener affixing the lid and the spring to the circuit board.

The invention discloses a load simulation test device for a permanent magnet motor, which belongs to the technical field of motor testing and comprises a test board, a mounting table is mounted on the test board, the permanent magnet motor is mounted on the mounting table, and a load test box is mounted at the top, close to the permanent magnet motor, of the test board. A controller is installed at the top, close to the load test box, of the test board, an air cylinder is arranged to drive a movable rod to move, and when the movable rod moves, an end cover plate can be driven to rotate through cooperation of a longitudinal limiting groove, a spiral limiting groove, a fourth gear, a second tooth groove, a limiting block and other parts; when the end cover plate rotates, a guide rod can be driven to move through cooperation of an inclined extrusion groove and a sliding groove, when the guide rod moves, a first magnet can be driven to be close to or away from a second magnet to adjust the loading force of the permanent magnet motor, and the loading force of the permanent magnet motor can be conveniently adjusted according to needs.

Methods, systems, assemblies, and / or the like are provided. According to various embodiments, there is provided an absorber assembly including: an absorber body configured to deform under one or more loading forces; a load lock comprising a first counter face and a second counter face, wherein the load lock is configured to prevent deformation of the absorber body when the one or more loading forces are below a minimal threshold; a primary absorbing part configured to deform the absorber body such that the absorber body does not exceed a primary threshold; and a secondary absorbing part configured to deform the absorber body such that the absorber body does not exceed a secondary threshold. In some embodiments, the absorber assembly includes a line of deformation (“LOD”) disposed on or within the absorber body, wherein the LOD comprises one or more radii.

The invention relates to a side-hung rotating platform real-time counterweight device, a side-hung rotating platform and a control method, and belongs to the technical field of automation equipment. According to the application, the eccentric load torque of the load is monitored in real time, and the counterweight assembly driven by the linear motor is controlled to move according to the eccentric load torque, so that the counterweight force arm is dynamically adjusted, and the reverse counterweight torque is accurately generated to counteract the eccentric load torque. And when the movement compensation is insufficient, the number of the balancing weights can be increased, so that the balancing weight quality is improved. The motion precision can be effectively improved, the equipment is protected, and the stability is improved.

The utility model discloses a resistance module connecting structure and fitness equipment, and the resistance module connecting structure comprises a rack; the load assembly is connected to the rack, and the load assembly comprises a load motor and a movable part; the output assembly is connected to the rack and comprises a connecting block, a movable pulley, a connecting rope and a stretching part which are sequentially connected, the connecting block is fixed to the movable part, the movable pulley is rotationally installed on the connecting block, and the connecting rope is wound around the movable pulley and extends outwards; wherein the load motor can output load force, and the stretching part is suitable for being pulled outwards so as to drive the connecting rope, the movable pulley, the connecting block and the movable part to move together; the load motor is in transmission connection with the movable part and used for driving the movable part to reset. A transmission structure is obviously optimized, the stretchable displacement range in the operation and use process of players is enlarged, the problem that ropes are folded is reduced or even avoided, and the stability and smoothness of power transmission are improved.

The invention provides a loading force control method for servo torque feed-forward and linear active disturbance rejection control, and belongs to the technical field of servo hydraulic equipment control. The method comprises the steps that a servo hydraulic tension pad dynamic model is constructed, and the servo torque feed-forward and linear active disturbance rejection control loading force is obtained based on the servo tension pad dynamic model and structural design parameters of a servo tension pad test bed; building a simulation model of the servo stretching pad; a simulation data set and an experiment data set are collected, the simulation data set and the experiment data set are combined, weighted and preprocessed, and a standardized feature matrix is obtained; constructing a servo feed-forward torque prediction model based on XGBoost, taking the standardized feature matrix as model input, and outputting a feed-forward torque; constructing a second-order system model of the servo stretching pad; and combining the feed-forward torque output by the servo feed-forward torque prediction model with the feedback torque calculated by the linear active disturbance rejection control to form a final torque instruction of the servo motor. According to the invention, the control precision and robustness of the loading force in the production process of the servo hydraulic stretching cushion are improved.

A system for use on a load moving machine. A first sensor node having at least one sensor, a second sensor node having at least one sensor. The first and second sensor nodes are placed on first and second fixed locations with respect to the lifting machine such that the first and second sensor nodes utilize their respective sensors, to report current geometric data with respect to the load moving machine.

The invention belongs to the technical field of intelligence, and discloses a bridge load test detection system based on wireless transmission. Comprising the following steps: uniformly distributing a bridge into M sections, and calculating a double-field coupling weight coefficient of each section; dynamically selecting a test point according to the double-field coupling weight coefficient of each section; a movable wireless sensor node is adopted to monitor a test point, and structural response data of the test point is collected; constructing a sensitivity matrix through the initial excitation parameter and the structural response data to obtain a corrected target function, and correcting the target function through iterative optimization to finally obtain an optimal excitation parameter; predicting the maximum dynamic load force and the actual dynamic load force; whether early warning is carried out or not is judged according to the predicted maximum dynamic load force and the predicted actual dynamic load force; and the accuracy and efficiency of the bridge load test are obviously improved.

The utility model relates to the technical field of waste glass recycling, and discloses a waste glass recycling and crushing device which comprises a base, a transmission mechanism is fixedly connected to the surface of the base, a crusher shell is fixedly connected to the surface of the base, the transmission mechanism is rotationally connected with a crushing mechanism, and the crushing mechanism is rotationally connected with the transmission mechanism. The base of the device adopts threaded ground feet, the height of the device can be adjusted by adjusting nuts, the device has the advantages of being convenient to install, simple in structure, low in cost, high in loading capacity and the like, a transmission mechanism adopts V-belt transmission, the V-belt transmission is large in friction force, compact in structure, high in transmission ratio and stable in operation, motor power can be effectively utilized, and machining cost can be reduced. A crushing mechanism in the crusher is a hammer type crushing mechanism, and the hammer type crushing mechanism has the advantages of being large in crushing ratio, high in production capacity, uniform in product, few in over-powder phenomenon, simple in mechanism, light in equipment mass, easy to operate and maintain and the like, and the hammer type crushing mechanism is suitable for crushing medium-hardness and brittle materials, can grind the materials into uniform particles and is high in production efficiency.

The present invention belongs to the technical field of rocket engine test equipment, and particularly relates to an assembled self-sealing sealing structure for a thrust chamber head, which is used to seal the head of a thrust chamber during testing. The assembled self-sealing sealing structure for a thrust chamber head includes a first sealing member, a second sealing member, and a third sealing member, the first sealing member and the second sealing member all form an annular sealing surface on the head of the thrust chamber, the sealing surfaces of the first sealing member, the second sealing member, and the third sealing member are arranged in order from outside to inside, and jointly seal the head of the thrust chamber, the first sealing member transmits a test load force to the thrust chamber head flange, the second sealing member transmits the test load force to the back surface of the thrust chamber head flange, and the third sealing member transmits the test load force to the base of the test equipment. The high pressure load during the test acts on the first sealing member, the second sealing member, and the third sealing member respectively, thereby improving the safety factor of each sealing member and reducing the stress level of the sealing members under high pressure test conditions.

The ball screw pair comprises a nut and a ball return device installed on the nut, a nut raceway is arranged on the nut, a ball return raceway is arranged on the ball return device, and the ball return raceway is in butt joint with the nut raceway. The ball screw pair is characterized in that the gradually-changing raceways are arranged at the two ends, in butt joint with the ball return raceway, of the nut raceway, and the gradually-changing raceways are arranged at the two ends, in butt joint with the ball return raceway, of the nut raceway. One end of the gradual-change raceway is in butt joint with the nut raceway and has the same depth as the nut raceway, and the other end of the gradual-change raceway is in butt joint with the ball return raceway and has the same depth as the ball return raceway; the ball screw pair has the advantages that the balls are in smooth transition from the nut raceway to the ball return raceway through the gradually-changed raceway, so that the vibration noise during working of the ball screw pair is greatly reduced, and the service life is prolonged; and moreover, as the positions of the two ends of the gradually-changed raceway are accurately determined, when the ball screw pair works, the area (namely the area of the gradually-changed raceway), which is not subjected to loading force during working, of the ball is controlled within the minimum range, and normal operation of the ball screw pair is ensured.

The invention belongs to the technical field of airplane structure strength tests, and relates to a spar stability test device with a controllable eccentric torque. The device comprises a supporting bottom beam (1), a load applying system (5), a beam web loading clamping plate (6) and an eccentric torque controller (8), one end of the wing spar (2) is fixed on the supporting bottom beam (1), the other end of the wing spar (2) is clamped by a beam web loading clamping plate (6), the beam web loading clamping plate (6) is connected with a lateral adjustable loading joint (7) with an adjustable position, and the lateral adjustable loading joint (7) is connected with a load applying system (5). Two sets of eccentric torque controllers (8) are used for providing jacking force for the outer side faces of trapezoid loading clamping plates (11) of the beam web loading clamping plates (6), and force sensors (23) are arranged on the eccentric torque controllers (8). The loading force line can be close to the rigid center of the spar as much as possible, the adjustable dimension is increased, and the test stability is improved.

The present invention discloses a pitch mechanism articulated fulcrum layout optimization design method, and the present invention relates to the field of electromechanical technology. The method comprises the following steps: establishing a pitch mechanism finite element model, setting different articulated fulcrum positions based on the pitch mechanism finite element model, and recording the articulated fulcrum position coordinates; performing force analysis of the pitch mechanism based on the pitch mechanism finite element model, and performing feature selection on the pitch mechanism performance parameters through correlation analysis to obtain optimization target parameters, including pitch load torque, electric cylinder axial thrust, and pitch motor output torque requirements; setting a constraint function, establishing an optimization target function based on the optimization target parameters and the constraint function, using the optimization target function as a fitness function, solving the optimal articulated fulcrum position through a genetic algorithm, analyzing the pitch mechanism motion error and environmental error, and correcting the optimal articulated fulcrum position based on the obtained error value to obtain the optimal articulated fulcrum position accurate value.

The invention relates to the technical field of automobile steering testing, in particular to an automobile steering system testing device which comprises a workbench, one side of the workbench is provided with a conveying piece capable of conveying a tested product, and the conveying piece is located at the position of a middle notch of the workbench; the conveying member is provided with a supporting member which can jack up a tested product. The workbench is provided with two clamping pieces which can clamp a tested product and provide loading force, and the two clamping pieces are symmetrically arranged. The device can simulate the actual performance of a steering system of an automobile under a real load condition; the device can simulate the performance of corresponding real-time torque performance of an automobile under different load working conditions; the device can simulate comprehensive performance such as corresponding real-time noise and vibration of an automobile under different load working conditions; the device can simulate some corresponding detection data real-time transmission and data analysis and adjustment functions under different working conditions.

The invention relates to the technical field of motor transmission mechanism load torque measurement, in particular to an automatic measurement system and an automatic measurement method for transmission mechanism load torque, which are particularly suitable for automatic measurement of transmission mechanism orientation or pitching load torque before equipment assembly and in debugging and inspection processes. The device comprises a mounting platform, a detection device, a test cable and a detection control box, the detection device is fixed on the mounting platform, and the detection control box is connected with the detection device through the test cable to complete load torque measurement. According to the invention, the azimuth or pitching load moment of the equipment transmission mechanism can be automatically measured before assembly, during debugging and inspection, so that the detection efficiency is improved; according to the method, whether the azimuth or pitching load torque of the transmission mechanism meets the technical index requirement or not is intelligently judged, the measurement error is reduced, and the measurement method can be popularized to products with similar mechanisms and has certain popularization value.

The invention relates to the technical field of precise mechanical equipment parts, and discloses a high-precision hollow rotating platform which comprises a fixing seat, a hollow cylinder table is arranged in an inner cavity of the fixing seat, two crossed roller bearings are fixedly connected to the side wall of the hollow cylinder table, and two annular caulking grooves are formed in the cavity wall of the fixing seat; the outer rings of the two crossed roller bearings are embedded into the two annular caulking grooves respectively and fixed, the top and bottom of the inner ring of each crossed roller bearing and the top and bottom of the outer ring have height difference, the part, protruding out of the outer ring, of the side wall of each inner ring is attached to the wall of the fixing base, and the two crossed roller bearings are used for averagely sharing the load force borne by the hollow cylinder table; the two crossed roller bearings are arranged to connect the hollow cylinder table with the fixing seat, and the weight borne by the device after installation can be uniformly distributed to the two crossed roller bearings, so that the loading force of the device is improved, and meanwhile, the situation that the transmission precision is affected due to the fact that friction force is increased due to the fact that a single crossed roller bearing bears large weight is avoided.

The utility model belongs to the technical field of ships, and particularly relates to a launching barge anchoring equipment reinforcing structure which comprises a launching barge. The launching barge comprises a buoyancy tank in the middle and buoyancy towers arranged at four corners of the buoyancy tank; anchoring equipment is arranged on the buoyancy tank, the anchoring equipment is used for fixing the launching barge in a water area, and the buoyancy tank comprises a buoyancy tank deck and a buoyancy tank end sealing plate; a fixing reinforcing device is arranged on the anchoring equipment and used for reinforcing the anchoring equipment. By arranging the anchoring equipment, when a ship is berthed, the anchoring equipment can fix the ship at a preset position and prevent the ship from drifting due to external force such as stormy waves, the structural strength of the anchoring equipment can be enhanced by arranging the fixing and reinforcing device, more loading force can be borne, and falling and damage caused by insufficient structural strength are prevented; the safety of the ship is influenced. The stable, safe and controllable operation of the ship entering and exiting the launching barge and the sinking and floating process is ensured, and the reinforcing structure of the launching barge anchoring equipment is reliable.

The utility model relates to an adjustable heavy-load guide rail roller device and a fabricated building, the device comprises a square tube guide rail and a plurality of roller mechanisms arranged at intervals along the length direction of the square tube guide rail, and the square tube guide rail is arranged on a telescopic box body. The roller mechanism comprises a fixing base, a first roller assembly, a second roller assembly and an adjusting assembly, the fixing base is connected with the fixing box body, and the first roller assembly, the second roller assembly and the adjusting assembly are all arranged on the fixing base. The first rolling wheel assembly and the second rolling wheel assembly are connected with the adjusting assembly, the distance between the first rolling wheel assembly and the second rolling wheel assembly is adjusted through the adjusting assembly, and therefore square pipe guide rails of different sizes are matched. When the roller assemblies or the square tube guide rails are abraded, the distance between the first roller assembly and the second roller assembly is finely adjusted, the two roller assemblies abut against the square tube guide rails all the time, downward displacement generated by the acting force of a load after the telescopic box body stretches out is prevented, and downward inclination after the telescopic box body stretches out is avoided.

The invention discloses a bidirectional and horizontal action hydraulic capstan test device and method, and belongs to the technical field of test bench testing and test equipment. The device comprises a supporting seat, a hydraulic capstan and a load oil cylinder, the load oil cylinder adopts a unique structure that a piston rod is fixed and a cylinder body can move bidirectionally, and two ends of the cylinder body are connected with the hydraulic capstan winding drum through two steel wire ropes with opposite winding directions. The core is a set of hydraulic loop integrating an electric proportional overflow valve and four one-way valves: when a cylinder body is pulled, oil in a pressed cavity needs to return through the electric proportional overflow valve, and the simulation load force can be accurately controlled by setting the pressure of the valve through an electric signal; meanwhile, the loop can automatically supplement oil to the negative pressure cavity, vacuum is prevented, and stable load is ensured. The problem that in the prior art, a variable load cannot be provided for a bidirectional and horizontal acting hydraulic capstan is solved, precise and stable simulation of a single oil cylinder on a bidirectional load is achieved, and the hydraulic capstan load simulation device has the advantages of being compact in structure, precise in control, safe and reliable.

The invention discloses a high-precision closed-loop force control linear rotating motor and a force control method thereof, and relates to the technical field of motors, the linear rotating motor comprises a shell, a linear motor, a rotating output shaft part, a constant force spring device, a force sensor and a controller, the rotary output shaft part comprises a rotary motor, a rotary connecting piece and an output rotating shaft, and can realize composite motion of axial reciprocating and angular rotation; the constant-force spring device provides constant balance force in the linear direction to compensate for gravity loads. The force sensor detects output thrust in real time and generates a feedback signal; the controller performs closed-loop force control adjustment according to the feedback signal; according to the motor, through the built-in high-precision force sensor and the constant-force spring structure, high-precision, low-force-value and stable force control performance is achieved, output fluctuation can be effectively reduced, and the system response speed and control precision can be improved.

The invention relates to a door and window safety performance detection device for constructional engineering, and belongs to the technical field of constructional engineering detection. The uniformly distributed load force application assembly can apply uniform or gradient change pressure to the whole surface of the door and window to simulate wind pressure; the concentrated load force application assembly can perform fixed-point impact on specific parts of doors and windows and simulate hard object impact or violent forcible entry; the wind pressure loading assembly applies uniform and gradient-adjustable wind pressure loads to the surfaces of doors and windows, simulates stress states under different wind levels and detects the air tightness of the doors and windows, and the rainfall simulation assembly simulates rainfall environments with different strengths to detect the water tightness of the doors and windows; the deformation of doors and windows, the stress of key parts of the doors and windows, the water leakage condition and the air leakage condition can be monitored, and the comprehensiveness and the real-time performance of detection data are ensured. The system can achieve the detection of multiple safety performance dimensions of the doors and windows of the constructional engineering, effectively improves the detection efficiency and precision, reduces the manual operation intervention, and provides a comprehensive and reliable data support for the safety performance evaluation of the doors and windows.

The invention provides a high-precision calculation method for weighing a farm feed tower under a wind load condition, and belongs to the technical field of weight calculation methods. The method specifically comprises the following steps that the dead weight of a feed tower, the total weight after feed is added and the static supporting force of each supporting leg are determined; the wind direction is measured, and the supporting legs are divided into a windward group and a leeward group according to the vertical symmetry plane, perpendicular to the wind direction, of the center of the material tower; respectively calculating the vertical distance from each supporting leg of the windward group and the leeward group to the symmetry plane, calculating the wind load force and the upsetting moment by combining the wind speed to establish a supporting leg counter-force mathematical model under the wind load, and obtaining the dynamic supporting force of each supporting leg; superposing the static supporting force and the dynamic supporting force of each supporting leg to obtain an estimated supporting force of each supporting leg; the estimated supporting force of each supporting leg under the wind load and the supporting force, measured in real time, of each supporting leg are used for conducting filtering calculation to obtain accurate dynamic supporting force of the wind load; and deducting the accurate wind load dynamic supporting force and the dead weight of the feed tower to obtain the actual accurate weight of the feed.

The utility model discloses a resistance output module and fitness equipment, and the resistance output module comprises a rack; the load assembly is connected to the rack, and the load assembly comprises a load motor and a transmission chain; the output assembly is connected to the rack, the output assembly comprises a connecting part, a connecting rope and a stretching part which are connected in sequence, and the connecting part is fixed to one side of the transmission chain; wherein the load motor can output load force, the stretching part is suitable for moving outwards so as to drive the load motor to rotate through the transmission chain, and the load motor is in transmission connection with the transmission chain and used for driving the transmission chain to reset. The output assembly is fixed to the transmission chain, so that a player can directly pull the stretching component to train, the structure of a transmission system is greatly simplified, use of complex components such as a traditional speed reducer and a traditional differential mechanism is reduced, and the problem that a traditional rope is prone to being folded and wound when being repeatedly wound and released on a winding wheel is thoroughly solved; and smoothness and stability of power output are ensured.