2722 results about "Dynamic balance" patented technology

The invention provides an autonomous navigation path planning method, device and equipment for a humanoid robot in a complex environment. A navigation task is determined by obtaining the current position and path requirement of the robot; constructing a constraint preposition map based on body size constraint, joint motion constraint and dynamic balance constraint, and calculating a feasible motion space of the robot in advance; acquiring environment sensing data for variation trend analysis, and predicting a future movement track of the dynamic obstacle to generate a dynamic environment prediction sequence; establishing a bidirectional planning mechanism, performing forward and reverse path search at the same time, and generating a plurality of candidate path hypotheses through meeting point detection and path fusion; analyzing a human behavior pattern to identify a potential passage conflict area, establishing a social negotiation strategy, and taking an intermediate meeting point as a social key node to adaptively adjust a candidate path; the optimal safety path is determined through multi-dimensional safety evaluation of the falling risk, the collision risk and the energy consumption risk, and intelligent autonomous navigation of the humanoid robot in a complex environment is achieved.

The invention provides an intelligent driving simulation test method and system for an internal combustion locomotive, and relates to the technical field of intelligent driving, and the method comprises the steps: collecting the driving state information and scene complexity data of the internal combustion locomotive through constructing a virtual simulation environment; acquiring multi-modal information of the obstacle by using a virtual sensor and performing fusion processing; and constructing a deep reinforcement learning network comprising a prediction branch network and a dual-channel control network, dynamically adjusting safety, comfort and efficiency index weights based on scene complexity, and generating driving control parameters. On the premise of guaranteeing safety, dynamic balance of high efficiency and comfort of intelligent driving of the diesel locomotive can be achieved, and adaptability and reliability of an intelligent driving system are improved.

The invention belongs to the technical field of industrial automation control, and particularly relates to a dynamic optimization control method and system for multi-component batching of a paste making machine, and the method comprises the steps: generating a characteristic waveform spectrum corresponding to a residue molecular structure; dynamically generating electric lubricating medium parameters containing the electroosmotic liquid concentration and the release rate; triggering a low-frequency vibration module of the material layer to generate vibration waves, and enabling the solution and the vibration waves to form a molecular-level synergistic stripping effect; calculating a nanoparticle dispersity index, and generating an inverse gradient mixing instruction when the index exceeds a threshold value; activating a hot vortex ring in a spiral flow guide convex pattern area and establishing a directional heat energy migration channel; and verifying the dynamic equilibrium state of the temperature of the paste core area and the viscoelasticity of the target formula, and triggering a phase lock control signal to terminate the parameter adjustment chain when the energy consumption rate reaches a stable interval. According to the invention, the problems that the transition period during formula switching is prolonged and the phase differences among the execution mechanisms are difficult to match in real time due to a traditional staged regulation and control mode are solved.

The invention relates to the technical field of detection structures, in particular to a machine tool spindle dynamic balance testing device which comprises an eccentric vibration unit and an amplitude detection unit, the eccentric vibration unit can drive a shaft body to vibrate, and the amplitude detection unit can detect the vibration amplitude of the shaft body; the eccentric vibration unit comprises a supporting ring installed on the shaft body and a rotating body eccentrically rotating on the supporting ring. The shaft body is made to be static, the shaft body is driven to vibrate through rotation vibration of the eccentric vibration unit, and therefore the amplitude of the shaft body can be increased under the condition that the center of gravity of the shaft body deviates, and whether dynamic balance of the shaft body is qualified or not can be judged by detecting whether the amplitude meets the requirement or not. Therefore, the danger in the operation process is greatly reduced, and a safer, simpler, more convenient and more efficient dynamic balance test solution for the machine tool spindle can be provided.

According to the distributed self-balancing control system and method based on torque-rotating speed droop, distributed motors are laid below a track, and efficient and flexible control over a vehicle and decoupling control over transverse driving force and longitudinal pressure are achieved; establishing a vehicle-machine-electricity coupling dynamic model comprising a loading vehicle, an electromechanical transmission device, a motor and a converter; the torque-rotating speed droop distributed self-balancing control of the rail type gravity energy storage motor is provided, and the rule of the influence of control parameters of a vehicle-machine-electricity coupling system on the stability of the system is analyzed. Compared with a traditional centralized control scheme, plug-and-play and dynamic balance of distributed motors in vehicle operation are achieved under the condition of no communication, and the problem that torque distribution of multiple motors is not uniform in distributed relay driving operation of a rail type gravity energy storage system is solved.

The invention provides a double-machine lifting dynamic balance control method based on real-time load feedback, which comprises the following steps of: after a system is initialized, synchronously acquiring load, height, attitude, position, motion and environment data of two machines, and fusing and filtering; load, height, angle, position and motion coordination multiple deviations are calculated, and balance and safety are evaluated; generating a speed, position, attitude and safety comprehensive control strategy by using multi-objective optimization according to an evaluation result, and setting a priority and a look-ahead mechanism; executing instructions in a distributed manner and monitoring the instructions in real time; self-adaptive parameter adjustment and machine learning continuous optimization are carried out based on a feedback closed loop; and multi-stage safety monitoring and emergency processing are synchronized. According to the invention, the precision, safety and efficiency of hoisting operation can be improved, the operation difficulty and energy consumption are reduced, and the adaptability and reliability of the system in a complex environment are enhanced.

The invention discloses a driving module of a reciprocating type shaver. The driving module comprises a base, a driving assembly and a driving assembly, the two ends of the deflection frame are fixed to the base through elastic pieces to form a frame structure. The output shaft is mounted above the deflection frame; the horizontal motor is arranged on the base; the cam is arranged on a motor power shaft, and grooves with parallel normal sections and equal width are formed in the surface of the cam; the lower end of the rocker arm is hinged to the base, a middle rocker arm shaft is assembled in the groove, and the upper end is in linkage with the deflection frame. Rotary motion is converted into high-frequency linear swing through precise cooperation of the cam and the rocker arm, the transmission efficiency is high, and noise is low; the integrated modular structure of the base and the motor enables the cam and the rocker arm to be matched more accurately and reliably; the double-output shaft symmetrically and reversely swings to realize dynamic balance vibration reduction; the compact horizontal layout saves space; the product has the economical efficiency of a common motor and the performance advantages of a linear motor, the comfort and reliability of a shaver product are improved, and meanwhile the cost is reduced.

The invention discloses a pipeline combined type single-autorotation intelligent counter-current chromatograph, and relates to the technical field of counter-current chromatographs, the pipeline combined type single-autorotation intelligent counter-current chromatograph comprises a rotating disc, a surrounding separation channel is formed in the rotating disc, a filling block is mounted in the surrounding separation channel, one end of the rotating disc is rotatably mounted through a liquid slip ring, and the other end of the rotating disc is rotatably mounted through a liquid slip ring. The other end of the rotating disc is connected with a main shaft, the main shaft is connected with a driving device, unwinding is conducted in a liquid slip ring mode, the rotating disc can complete unwinding action under single rotation, mixing of two phases in the separation channel can be enhanced through a filling block, and therefore arrangement of a planetary gear train can be abandoned; the main shaft is directly driven by the driving equipment to rotate, and the main shaft drives the rotating disc to rotate to realize two-phase separation and extraction, so that a higher rotating speed can be obtained, and the separation efficiency and effect are improved; and secondly, after the planetary gear train is abandoned, the equipment noise is greatly reduced, and good dynamic balance is achieved.

The invention discloses an oil-cooled motor rotor cooling structure, which is characterized in that a motor shaft comprises a hollow axial motor shaft inner cavity main oil way, a motor shaft excircle axial oil guide groove and a motor shaft radial oil guide hole arranged between the inner cavity main oil way and the motor shaft excircle axial oil guide groove; the rotor iron core is connected to the motor shaft; the two rotor end plates are respectively connected with the motor shaft and are respectively positioned at two ends of the rotor iron core; the rotor end plate is provided with a radial oil guide groove and a radial oil outlet groove; the radial oil guide grooves in the first rotor end plate are communicated with the axial oil guide grooves in the outer circle of the motor shaft and the rotor iron core magnetic isolation grooves, and the radial oil outlet grooves in the second rotor end plate are communicated with the rotor iron core magnetic isolation grooves. According to the invention, the flow distribution of the cooling oil paths at the two ends of the rotor can be more uniform at various rotating speeds without adding any additional parts, the influence on the dynamic balance of the rotor assembly is reduced, and the heat dissipation uniformity of the stator and the rotor of the motor can be improved.

The invention provides a rigid-flexible coupling humanoid manipulator which comprises a humanoid rigid-flexible coupling manipulator mechanical body, a wrist tube connected with a hand body and a driving control system and a hand body driving control system, a thumb and palm connecting piece drives a thumb to do palm-facing movement, and a steering engine module is in transmission connection with fingers and the thumb through a plurality of driving ropes. The fingers and the thumb can do flexion or abduction movement, and the fingers can do lateral deviation abduction movement; and elastic ligaments are connected to joints of the fingers and the thumb. Through the autonomous variable-stiffness metacarpophalangeal joints, the bionic interphalangeal joint system and the hand-simulated hand movement system of the elastic envelope structure, dexterous movement and contact compliance of the manipulator in a complex operation task are achieved, and the dynamic balance requirement of the manipulator between dexterous operation and rigid maintenance is met; the invention has the advantages of excellent movement performance, strong environmental adaptability, low manufacturing cost and the like.

The invention discloses an industrial part carrying control method and system based on dynamic path planning, and relates to the technical field of industrial equipment control, and the technical scheme is characterized in that an initial path satisfying suction constraint and joint torque limitation is generated by using a path planning algorithm and quadratic programming; the method comprises the following steps: acquiring three-dimensional coordinates of an obstacle, a part inclination angle and joint torque data in real time through a fusion sensor to perform local deformation adjustment on a path, constructing a multi-objective optimization function, and dynamically balancing an obstacle avoidance distance to obtain an optimal carrying path on the premise of ensuring a certain coincidence degree with an initial path; feedforward torque compensation is carried out according to the optimal carrying path, and compliant adjustment of the contact force is achieved in combination with impedance control. According to the technical system, the path re-planning efficiency of the system in a dynamic environment is improved, the joint torque fluctuation is reduced, and the part damage rate is reduced.

The invention discloses a disc type motor rotor dynamic balance optimization device, and relates to the technical field of motor rotor dynamic balance testing. Comprising a bottom plate and a rotor body, the bottom plate is provided with a test assembly, and the test assembly is provided with a test belt; a support plate is fixedly mounted on the bottom plate, an optimization assembly is arranged in the support plate, and test data of the rotor body are more accurate through the optimization assembly; a detection frame is fixedly installed on the support plate, a detection instrument is arranged on the detection frame, the test assembly comprises two side plates fixedly installed on the bottom plate, and driving motors are fixedly installed on the side plates. According to the disc type motor rotor dynamic balance testing device, the testing assembly and the optimizing assembly are used in cooperation, the stability and adjustability in the testing process are improved, the testing effect can be optimized when the disc type motor rotor is subjected to dynamic balance testing, and the efficiency and accuracy of the disc type motor rotor dynamic balance testing are effectively improved.

The invention discloses a superconductive synchronous phase modifier rotor adaptive dynamic balance compensation device and method, and relates to the technical field of superconductive synchronous phase modifiers, the superconductive synchronous phase modifier rotor adaptive dynamic balance compensation device comprises a rotor, the rotor is fixedly connected with a rotating shaft, and a plurality of vibration signal capture sensors are uniformly distributed on the side surface of the rotor and used for monitoring the vibration condition of each point in the circumferential direction of the rotor in real time; a gravity center compensation mechanism is further installed on the side face of the rotor and used for correcting the dynamic unbalance situation generated in the rotating process of the rotor in real time. When a certain vibration signal capture sensor on a rotor monitors that a dynamic unbalance condition occurs at a corresponding point, a sealing push plate in a balance box body at a corresponding position pushes out balance liquid stored in the balance box body through a communicating pipe, and the sealing push plates in the oppositely arranged balance box bodies move to a position far away from the communicating pipe; and the spaces, communicated with the communicating pipes, in the opposite balancing box bodies are filled with the pushed balancing liquid, so that the adjustment and compensation of the gravity center distribution of the rotor are completed.

The invention discloses a rotor unbalance rapid adjustment method based on Kalman filtering, and belongs to the technical field of rotor dynamic balance. According to the method, a rotor rotating speed signal is obtained through a magnetic encoder, and a piezoelectric vibration sensor is triggered to collect a radial vibration signal. In the aspect of signal processing, a zero phase shift filter is adopted to remove noise interference, and an initial phase and an amplitude are extracted by using FFT (Fast Fourier Transform). And calculating a rotating speed change rate based on the sliding time window, and judging whether the rotor is in a steady-state or transient-state working condition. Under the transient working condition, a state space model containing amplitude, phase and rotating speed is constructed, and unbalance adjustment parameters are predicted through Kalman filtering recursion; and under a steady-state working condition, accurately calculating a correction parameter by adopting a least square method. In addition, a least square fitting model based on a sine function is constructed, amplitude estimation is optimized, and the unbalance calculation precision is improved. According to the invention, the unbalance of the rotor can be quickly and accurately adjusted, and the stability and the service life of a rotating system are improved.

The invention discloses a double-capacity water tank control method based on multi-target reward Q learning, and belongs to the technical field of machine learning and automatic control. The method comprises the following steps: firstly, establishing a discretization mathematical model of a double-capacity water tank liquid level control system, and designing a multi-target reward function; secondly, empirical data are stored only when the liquid level tracking error exceeds the limit or the control quantity suddenly changes, and sampling weights are distributed according to award absolute values; and finally, updating the Q table based on the time difference error, and performing closed-loop real-time control on the double-tank water tank according to the dynamically adjusted PID parameter. According to the method, a five-dimensional reward function is designed, and multi-index dynamic balance is realized through linear weighting; the empirical tuple is stored only when the liquid level tracking error exceeds the limit, and the quick response requirement of the dynamic time-varying scene of the double-capacity water tank is met; dimensionality reduction is performed on a continuous state space by adopting a non-uniform grading strategy, so that the calculation complexity is remarkably reduced; a perception-decision-execution integrated framework is constructed, and the dependence of a traditional control method on a mathematical model of the water tank is abandoned.

The invention relates to the technical field of hoisting construction dynamic safety assessment, and particularly discloses a hoisting construction dynamic safety assessment method, which comprises the following steps of: acquiring operation parameters of a hoisting system in real time through a multi-modal sensor array, and generating a hoisting dynamic parameter set; the lifting dynamic parameter set comprises pressure distribution data of each lifting point, lifting appliance attitude angle data and load space position data; based on the hoisting dynamic parameter set, force system dynamic balance analysis is executed, and the force system unbalance degree of the crane is obtained through analysis; and when the force system unbalance degree of the crane is larger than a set threshold value, an unbalance active correction mechanism is triggered, and unbalance correction is conducted on the crane through adjustment of the electro-hydraulic proportional valve. And the safety and the efficiency of hoisting operation can be obviously improved. The automatic unbalance correction mechanism not only reduces the accident risk, but also improves the operation flexibility and response speed, and provides powerful technical support for modern hoisting operation.

The present invention discloses a traction machine with dual motors and an assembly method thereof, belonging to the technical field of traction machines. The traction machine includes a traction wheel, a main rotating shaft, two supporting bodies, and two sets of motor assemblies. The two supporting bodies are respectively arranged at both ends of the traction wheel, one motor assembly is installed between the first end of the traction wheel and one of the supporting bodies, and the other motor assembly is installed between the second end of the traction wheel and the other supporting body. The two supporting bodies are respectively sleeved on both ends of the main rotating shaft, and the main rotating shaft and the supporting bodies rotate in coordination. The traction wheel is sleeved outside the main rotating shaft and fixed to the main rotating shaft. The two supporting bodies are symmetrically arranged relative to the center of the main rotating shaft, and the traction wheel is symmetrically arranged relative to the center of the main rotating shaft. When the traction machine is in operation, the forces acting on the two supporting bodies are consistent, the bearing capacity of the traction machine is more uniform, and the dynamic balance of the traction machine is achieved.

The invention discloses an automobile transmission shaft dynamic balance detection device, and belongs to the technical field of transmission shaft detection, the automobile transmission shaft dynamic balance detection device comprises a detection table, the detection table is provided with two moving blocks, the moving block on one side is provided with dynamic balance detection equipment, and the equipment passes through a rotating first electric clamping jaw; according to the coaxial positioning mechanism, through transmission cooperation among a first bevel gear, a second bevel gear and a third bevel gear in the coaxial positioning mechanism, when the first bevel gear is driven, the second bevel gear can be driven to rotate, and then the third bevel gear and the first bevel gear rotate in the opposite directions; in the transmission process, the second rotating rod below the driving rod and the first rotating rod below the driving sleeve can rotate, and the rotation of the second rotating rod and the first rotating rod can drive the positioning clamping blocks at the two ends to clamp the two sections, with the universal joint as a grading line, on the transmission shaft, so that horizontal transmission of the transmission shaft is guaranteed, the coaxiality of the universal joint is improved, and interference to middle section detection is reduced.

The present invention relates to a liquid metal bearing dynamic balance correction system and method applied to the field of CT tube technology. The dynamic balance correction system comprises an air circulation system, a liquid metal bearing system, and a test sensor system. The air circulation system comprises a sealed outer cover, an exhaust fan is arranged on the outer wall of the sealed outer cover, one end of the exhaust fan is connected to a gas circulation channel, and the end of the gas circulation channel away from the exhaust fan is connected to the inside of the sealed outer cover. The dynamic balance correction system of the present invention can effectively avoid the problem that the liquid metal in the bearing reacts with oxygen in the atmosphere, causing the viscosity of the liquid metal to change, and then causing the bearing performance to decrease when performing dynamic balance correction on the liquid metal bearing. The dynamic balance correction system can not only perform dynamic balance correction on the rotor, but also perform dynamic balance correction on the final product structure of the rotor and the stator, thereby greatly improving the accuracy and effect of the dynamic balance correction.

The invention discloses a method and a system for dynamically stabilizing a bucket-type foundation structure in a floating state, and the method comprises the steps: dragging the bucket-type foundation structure on a water surface when the bucket-type foundation structure is in a floating state relative to the water surface, and collecting a plurality of dynamic parameters of the bucket-type foundation structure; matching a horizontal force balance parameter, a vertical force balance parameter and a moment balance parameter of the bucket type foundation structure on the basis of a plurality of dynamic parameters, so as to introduce the horizontal force balance parameter, the vertical force balance parameter and the moment balance parameter, and associating the horizontal force balance parameter, the vertical force balance parameter and the moment balance parameter with a dynamic balance relationship; according to the dynamic balance relation, dynamic adjustment of the horizontal force balance parameter, the vertical force balance parameter and the moment balance parameter is triggered; the inclination degree of the barrel type foundation structure is monitored in real time, the dynamic balance relation is dynamically regulated and controlled according to the inclination degree of the barrel type foundation structure, and the dynamic stability of the barrel type foundation structure in the floating state is improved.

The invention discloses a device based on contour in-situ measurement fitting and an adaptive efficient grinding method, and belongs to the technical field of part machining. The device comprises a grinding wheel contour measuring system used for measuring and fitting the outer contour of a grinding wheel and an angle precision positioning system used for measuring the contour, the size and the profile position of a part. Firstly, a part is installed, in-situ measurement and fitting of the surface profile of the part are carried out, and the included angle between the axis and the machine tool spindle axis is calculated; secondly, a grinding wheel is installed, and dynamic balance is adjusted; then, carrying out in-situ measurement and fitting to obtain the contour of the working surface of the grinding wheel, and carrying out minimum removal amount shaping on the grinding wheel; and finally, after adaptive grinding is carried out, the surface profile of the machined part is measured in situ again, and whether the requirement is met or not is detected. By measuring the original outlines of the adaptive part and the grinding wheel in situ, the problems of large-volume removal of the part and long dressing time of the grinding wheel in the grinding process are solved.

The invention relates to the technical field of precise spindle detection, in particular to a spindle dynamic balance detection method and system, and the method comprises the steps: configuring a vibration information collection point location, and obtaining a vibration component signal related to a balance state in the operation process of a spindle, the vibration component signal comprising a multi-dimensional vibration component and a spindle dynamic parameter; performing feature extraction and parameterization analysis on the vibration component signal, analyzing the motion state of the main shaft, and generating an unbalance feature set describing the unbalance state of the main shaft if the unbalance state occurs; dynamic balance mapping is established according to the imbalance characteristic set, and a parameterized balance analysis model is generated based on dynamic balance mapping integration analysis; and constructing closed-loop dynamic feedback, monitoring the running state of the main shaft, iteratively parameterizing the balance analysis model according to a monitoring result, and correcting the movement of the main shaft until the balance of the main shaft meets a preset target. According to the invention, the problems of poor adaptability, feedback lagging and low data utilization rate of the existing spindle dynamic balance detection method are effectively solved.

The invention relates to a multi-machine cooperative dynamic balance driving method, system and device for a spiral lifting machine, and the method comprises the steps: carrying out the compensation of the time lag of an actuator through employing a non-linear state observation and time lag compensation combined method, and obtaining a feedforward control quantity; performing Lyapunov stability feedback processing on the vibration acceleration signal to obtain a vibration suppression control quantity; designing a multi-section S-shaped speed curve, and calculating a closed-loop feedback control quantity by adopting PID (Proportion Integration Differentiation) combined with a robust control algorithm; and according to the feedforward control quantity, the vibration suppression control quantity and the closed-loop feedback control quantity, multi-machine cooperative dynamic balance driving of the spiral lifting machine is carried out. According to the invention, a non-linear state observation and time delay compensation technology is adopted, so that the synchronization error is reduced to a millisecond level; the low-frequency vibration amplitude is reduced through dynamic feedback control designed based on the Lyapunov theory; the hydraulic impact is obviously reduced by adopting a multi-section S-shaped speed curve; external disturbance is observed in real time through Kalman filtering, feed-forward compensation is carried out, and the robustness of the system is greatly enhanced.

The invention discloses a rotating equipment dynamic balance adjusting device, and relates to the technical field of rotating equipment dynamic balance. Comprising a bottom table, a guide rail is installed in the middle of the top end of the bottom table, a moving frame slides in the guide rail, a sliding block slides in the moving frame in a limited mode, a first electric push rod is installed at the bottom of the sliding block, a connecting frame is installed at the bottom of the first electric push rod, and a rotating ring is rotationally connected into the connecting frame; and a visual sensor is mounted in the rotating ring. Through the clamping assembly, the connecting frame, the fixing table and the rotating ring, when the rotating shaft is subjected to balance detection, the rotating ring can synchronously rotate along with the rotating shaft, so that an uneven area on the surface of the rotating shaft can be accurately marked conveniently, and the rotating ring synchronously rotates along with the rotating shaft; an uneven area on the surface of the rotating shaft can be accurately marked in real time, and repeated grinding and detection conducted by an operator due to inaccurate marking are avoided.

The invention provides an open caisson sinking control method based on dynamic balance of a soil resistance field, which comprises the following steps of: judging whether an open caisson posture dynamic balance condition is met or not according to an open caisson bottom surface soil resistance vector field and an open caisson posture offset, if not, intervening space distribution of the open caisson bottom surface soil resistance vector field, and reconstructing the open caisson bottom surface soil resistance vector field; the dynamic balance condition of the open caisson posture is met; and based on the open caisson bottom surface soil resistance vector field, the height difference vectors of the adjacent bins on the open caisson bottom surface and the soil taking control matrix, a dynamic decision objective function is constructed, the objective function is solved, an optimal soil taking control matrix is obtained, and an actuator cluster is controlled to take soil from the bins on the open caisson bottom surface. According to the method, the influence of dynamic evolution of the soil resistance field of the bottom face of the open caisson on the open caisson attitude offset is considered, the soil resistance field is dynamically adjusted, the open caisson attitude is accurately controlled, and soil taking control is optimized.

The utility model relates to the technical field of wheel hub detection, in particular to a wheel hub fixing device for aluminum alloy wheel hub dynamic balance detection equipment, which comprises a dynamic balancing machine, a lifting mechanism, an output shaft, a limiting plate and a mounting component, the lifting mechanism is mounted at the bottom of one side of the dynamic balancing machine, the output shaft is arranged at the top of one side of the dynamic balancing machine, and the limiting plate is arranged on the output shaft. The limiting plate is installed on the outer side of the output shaft, the output shaft is sleeved with the installation assembly, and the installation assembly comprises a threaded pipe, a conical block, a lantern ring, a screw and a limiting insertion block. According to the hub fixing device for the aluminum alloy hub dynamic balance detection equipment, a hub is lifted to the position of the output shaft through the auxiliary lifting mechanism, the physical strength needed by workers for carrying is reduced, and the working efficiency is improved. And the hub limiting area is adjusted according to the size of the hub to be detected, so that the hub is fixed at a proper position on the output shaft, and the hub rotation stability is improved while the hub fixing effect is ensured.

The invention discloses a fan dynamic balance adjusting method, a fan comprises a rotating shaft, impellers and a bearing, the impellers are arranged at the two ends of the rotating shaft in the axial direction, the bearing is arranged on the rotating shaft in a sleeving mode and located between the two impellers, and vibration sensors are arranged on the two end faces of the bearing in the axial direction, and the adjusting method comprises the steps that fan vibration is tested, and an emphasis function is obtained; actual vibration values of the two vibration sensors in the actual operation process of the fan are obtained; and a balancing weight is additionally arranged on the impeller according to the actual vibration values of the two vibration sensors and the emphasis function. According to the fan dynamic balance adjusting method, the weighting function is obtained by testing fan vibration, the weight and the weighting position of the required balancing weight can be directly calculated in the actual operation process of the fan, the fan dynamic balance adjusting precision can be improved, the fan dynamic balance effect is ensured, fan vibration is reduced, stable operation is guaranteed, and the fan dynamic balance adjusting method is suitable for large-scale popularization and application. Multiple times of shutdown for manual debugging are not needed, the response speed of fan dynamic balance adjustment can be increased, the adjustment efficiency is improved, and the cost is reduced.

The invention discloses an impeller dynamic balance detecting and leveling device which comprises a base plate, a supporting column and a leveling assembly. The leveling assembly comprises a lifting piece installed on the supporting column. A transmission frame is mounted on the lifting part; a pneumatic part is mounted on the transmission frame; and a push rod is fixedly mounted at the output end of the pneumatic part. According to the impeller dynamic balance detection leveling equipment, dynamic compensation can be carried out on an unbalanced part in the dynamic balance detection process by adjusting the balancing weight in real time, continuous and efficient dynamic balance testing is achieved, the detection efficiency is remarkably improved, meanwhile, according to the balancing weight position indicated by the balancing weight, the balancing weight clamp is installed in the corresponding area of the impeller, and the balance weight position is adjusted. Therefore, the local mass distribution of the impeller is accurately adjusted, the balance state of the impeller is accurately adjusted, the accuracy and operation convenience of dynamic balance adjustment are further improved, and the efficient and reliable mass balance effect is achieved.

A telescoping crane has an adjustable, pivoting payload, and a counterbalance mechanism that automatically compensates for the position of the telescoping crane and movement of the payload relative to the crane.

The invention discloses a swivel bridge dynamic balance weight adjusting method which comprises a real-time weighing monitoring system, a balance weight adjusting system, a hydraulic traction device and a balance weight moving device, the balance weight moving device comprises a plurality of movable balance weights, a plurality of flat rail cars and rail car longitudinal moving rails, the movable balance weights are carried on the flat rail cars, and the movable balance weights are arranged on the flat rail cars. Every two adjacent movable balancing weights are connected through a connecting rope, the hydraulic traction device comprises two fixed balancing weights and two center hole jacks, the two fixed balancing weights are arranged at the two ends of the longitudinal track respectively, and the two center hole jacks are installed on the two fixed balancing weights respectively; the center hole jacks are connected with the adjacent end movable balancing weights, the balancing weight adjusting system calculates balancing weight distribution point positions and loading weight in real time according to monitoring data of the real-time weighing monitoring system, and the corresponding center hole jacks are controlled to pull the movable balancing weights. According to the invention, the dynamic counterweight adjustment of the swivel bridge can be realized before the bridge swivel construction or in the swivel process.