6659 results about "Bearing (mechanical)" patented technology

The invention relates to the technical field of mechanical joints, in particular to a humanoid robot linear electric drive joint which comprises a shell, a front end cover and a rear end cover, the front end cover and the rear end cover are fixed to the two ends of the shell respectively, and an execution assembly and a drive control assembly are arranged in the shell; the execution assembly comprises a reverse planetary roller screw and a motor, and the drive control assembly comprises an encoder composed of a coded disc and a magnetic ring, a pull pressure sensor and a driver. Aiming at the technical problem that an existing linear joint has defects, a reverse planetary roller lead screw is adopted as a main transmission component, and the lead screw, a roller and a nut of the reverse planetary roller lead screw are in linear contact, so that high precision, long service life, high integration level and high thrust density can be achieved while high bearing and high speed are achieved; therefore, the method is suitable for use scenes of humanoid robot joints.

The invention discloses a sliding bearing friction wear prediction method based on fluid mechanics, and relates to the technical field of mechanical state monitoring, and the method comprises the steps: collecting single-point temperature, local pressure, vibration time domain signals and a bearing pedestal inclination angle through a sensor, and generating sensor data; performing field reconstruction based on a fluid mechanics conservation equation on the sensor data to obtain multi-field data; performing spatial alignment on the multi-field data, inputting the multi-field data into a long short-term memory (LSTM) network, and generating wear state characteristics; training a sparse correlation vector machine regression model RVM by using the historical wear data, establishing a nonlinear mapping relationship between the wear state characteristics and the wear depth, taking the wear state characteristics as the input of the vector machine regression model RVM, and outputting the predicted wear depth; sensor data and the predicted wear depth are fused in real time through Kalman filtering, and when prediction deviation exceeds a covariance threshold value, vector machine regression model RVM parameters are updated.

The invention belongs to an electromechanical braking system in the technical field of vehicles, and discloses a driving and parking braking torque mutual coupling redundancy electromechanical braking system which comprises a brake assembly, an MGU and shell, a driving braking motor and gear reducing mechanism assembly, a gear system bearing support and an ECU controller assembly. The service braking gear reduction mechanism assembly comprises a service braking first-stage reduction gear train mounting mechanism, a second-stage reduction gear train mounting mechanism and a bearing, and the parking braking gear reduction mechanism assembly comprises a parking first-stage reduction worm and gear mechanism, a second-stage reduction worm and gear mechanism and a mounting bearing. The braking torque of the driving braking and the braking torque of the parking braking are mutually coupled, the two systems can share the braking output gear shaft assembly, the driving braking and the parking braking can be independently operated, and meanwhile the parking braking can assist the driving braking when needed. By means of the design, the safety and reliability of the braking system are improved.

An electromechanical linear actuator having a threaded drive, which comprises a threaded nut connected to a cantilever tube and a lead screw connected to a hollow shaft of an electric motor via a rotationally fixed connection in such a way that, by a rotation of the hollow shaft and the lead screw, the threaded nut and the cantilever tube are linearly movable. An axial design length of the electromechanical linear actuator in the maximally retracted state is minimized in that a holding brake for the lead screw and a first rotary bearing for bearing the lead screw on a housing of the linear actuator are arranged within the hollow shaft.

A harmonic reducer, a mechanical arm and a robot, the harmonic reducer comprising a circular spline, a flexspline and a wave generator, wherein the wave generator comprises a cam and a flexible bearing; a bearing outer ring is provided on an outer peripheral wall of at least one side of the cam, and the cam is rotationally connected to the bearing outer ring; and an outer peripheral wall of the bearing outer ring is connected to an inner peripheral wall of the circular spline. In the present invention, the bearing outer ring is arranged on an outer peripheral wall of at least one end of the cam, and the cam serves as a bearing inner ring, such that parts and components are reduced; and under the same bearing capacity, the bearing outer ring limits the flexspline and the flexible bearing, a sealing ring is omitted, and no additional connecting component or fixing component needs to be used for fixing the flexspline, thereby simplifying the process and reducing the volume and the weight of the harmonic reducer. The harmonic reducer in the present invention can be directly connected to an electric motor, and no additional bearing is needed, which reduces the axial length when the harmonic reducer is connected to the electric motor, and does not reduce the power of the electric motor, thereby further achieving the aim of miniaturization, and thus the cost is reduced and promotion is facilitated.

Microelectromechanical component (100) for motion measurement, comprising: a fortified section (118); a single, central anchor (106) coupled to the attached section (118) with four sides; a first non-straight suspension element (108) coupled to the anchor (106) on one side of the anchor (106); a second non-straight suspension member (120) coupled to the anchor (106) on the same side of the anchor (106), wherein the second non-straight suspension member (120) has a shape and position that mirrors the first non-straight suspension member (108) on a plane (122) bisecting the anchor; and a test mass (104) which is planar, wherein the test mass (104) is suspended at least partially on the first non-straight suspension member (108) and the second non-straight suspension member (120) such that the test mass (104) is rotatable about the anchor (106) and displaceable in a plane which is parallel to the attached section (118), where the first and second non-straight suspension members (108, 120) are bending bearings, wherein the first non-straight suspension member (108) has a C-shape, wherein the C-shape includes an inner section (110) which is coupled to the anchor (106) and extends towards the plane (122) bisecting the anchor, a central section (114) which includes a nearby section and has a distant section, whereby the near section is coupled to the inner section (110), and the far section extends away from the anchor (106) along the plane (122) bisecting the anchor and is coupled to an outer section (112) extending away from the plane (122) bisecting the anchor.

Disclosed is an assembly for a turbomachine comprising: ⋅—a second connection element (8) having a third end (81) which is connected to a turbine shaft (2) and is mounted on a second bearing (5), and a fourth end (82) connected to a mechanical transmission device (6), the second connection element (8) having a second radial compliance (SR2); and ⋅—a third connection element (9) having a fifth end (91) fixedly mounted on a casing (1), and a sixth end (92) connected to the mechanical transmission device (6), the third connection element (9) having a third radial compliance (SR3), wherein a ratio of the first radial compliance (SR1) to the third radial compliance (SR3) is strictly lower than 10% and / or a ratio of the first radial compliance (SR1) to the second radial compliance (SR2) is strictly lower than 4%.

The invention belongs to the technical field of metal processing, particularly relates to a multi-degree-of-freedom welding mechanical arm for processing a metal steam cabinet, and provides the following scheme aiming at the conditions that the current processing equipment cannot automatically correct the position of a welded metal plate, does not have an auxiliary cooling function of a welding point and is easy to cause welding deformation. Comprising a tool welding platform, an adjusting module is arranged above the tool welding platform, the adjusting module comprises a U-shaped supporting plate, a mounting round hole is formed in the tool welding platform, and a rotating round pipe is connected to the interior of the mounting round hole through a bearing. According to the multi-degree-of-freedom welding mechanical arm for metal steam cabinet machining, accurate cooling operation on welding points is achieved, deformation of a steam cabinet plate after welding is avoided, meanwhile, multi-angle welding on a metal cabinet plate is achieved, and therefore the labor amount of workers in the welding process is reduced, and the machining production efficiency of the welding mechanical arm is improved.

The invention provides a mechanical engineering thin-walled tube automatic welding device and a using method thereof, and relates to the technical field of thin-walled tube welding machining. The mechanical engineering thin-walled tube automatic welding device comprises a bottom frame, a left hexagonal frame and a right hexagonal frame are fixed to the upper portion of the bottom frame, a left tube body and a right tube body are arranged in the left hexagonal frame and the right hexagonal frame respectively, and butt joint structures used for connecting the left tube body and the right tube body are arranged on the hexagonal frames. Bearing structures used for supporting the welding position are arranged in the left pipe body and the right pipe body. According to the mechanical engineering thin-walled pipe automatic welding device and the using method thereof, the left pipe body and the right pipe body are placed in the left hexagonal frame and the right hexagonal frame correspondingly, the left pipe body and the right pipe body can rotate and be automatically welded through the butt joint structure, and the left pipe body and the right pipe body can be supported through the bearing structure to be tightly attached; therefore, the welding quality of the thin-walled tube is improved.

The invention discloses a sliding bearing-rotor system stability test system and method under an impact load, and relates to the field of rotating machinery test in mechanical engineering. According to the technical scheme, different types of impact loads are applied through a vibration acceleration platform, and starting, stopping or external impact force in actual working conditions is simulated. In the testing process, a high-precision sensor and a multi-channel acquisition board card are used for monitoring the vibration characteristic and the rotating speed of the system in real time, it is guaranteed that signals of different positions and types can be synchronously acquired, and comprehensive system state information is provided. Then, in combination with time domain and frequency domain analysis technologies, key features are extracted from mass data by applying an advanced Fourier transform algorithm, the resonant frequency, modal characteristics and potential fault modes of the system are identified, and accurate evaluation of the stability of the system is realized. Experimental results show that the real-time monitoring and analysis method can effectively improve the stability test precision of the sliding bearing-rotor system under the impact load, and provides powerful technical support for engineering application. The method is used for evaluating the stability of the sliding bearing-rotor system under the impact load.

The invention discloses a thermal error prediction method for a spindle system of a high-speed precision machine tool under an inclined working condition, and develops a comprehensive thermal error compensation method for the spindle system of the high-speed precision machine tool running under the inclined working condition by utilizing error mechanism analysis. The thermal error is modeled as an exponential function which depends on the steady-state thermal error, the time constant of the thermal error balance process and the working time, derivation of the exponential function is supported by error mechanism analysis, and the exponential function is used for accurately identifying the time constant of the steady-state thermal error and the time constant of the thermal error balance process through thermal-structural interaction. Influences of inclined working conditions are incorporated into a quasi-static mechanical model of the bearing, and the problems of bearing heating and changes of axial and radial rigidity are solved. The invention further discloses a thermal error compensation system.

The invention relates to the technical field of mechanical automation control, in particular to a bearing pressing machine control method and system. The method comprises the following steps: acquiring multi-dimensional monitoring data in a press fitting process; based on the difference between the monitoring data at the current moment and the data at each moment in the preset window, constructing a deviation degree sequence of each dimension at the current moment; adjusting the length of a preset window based on the correlation of the deviation degree sequence to obtain a target window at the current moment; determining a truncation distance of clustering analysis according to the data point distribution sparseness of the monitoring data in the target window; taking the truncation distance as a parameter, and performing clustering analysis on the data points in the target window through a density clustering algorithm to identify abnormal data points; and when the monitoring data at the current moment is abnormal, the bearing press-fitting machine is controlled to execute a preset response action. According to the method, the analysis window and the clustering truncation distance are adaptively adjusted, so that the accuracy of abnormal state recognition under the multi-stage working condition is improved.

The invention relates to a ship repair platform and a using method thereof, and belongs to the technical field of ship repair platforms, the ship repair platform comprises a movable base, an operation mechanical arm, an image recognition system and an intelligent control system, the movable base is provided with a magnetic attraction crawler belt and a hydraulic cylinder, and a vacuum suction cup is installed at the driving end of the hydraulic cylinder; a safety rope ring and a bearing base are fixedly installed on the movable base, the bearing base is rotationally connected with a loading platform, the three operation mechanical arms are evenly installed on the top of the loading platform, the three operation mechanical arms are provided with a high-pressure water gun, a laser rust removal head and a paint spraying nozzle correspondingly, and a device support is fixedly installed on the movable base. The device support is provided with an electric holder. According to the method, the damaged area of the outer wall of the ship body can be automatically recognized, cleaning, dirt removal and paint make-up operation can be accurately executed, the manual intervention requirement is reduced, and the maintenance efficiency is improved.

The invention relates to the technical field of machining, in particular to double-angle machining self-made five-axis equipment which comprises a machining table and a machining assembly, and the machining assembly comprises a four-axis rotary table, a rotary table tailstock, an overturning piece, a five-axis rotary table, a tool plate, a plurality of clamping pieces, a transverse moving piece, a lifting structure, a bearing frame, a front-back adjusting piece and a machining equipment assembling table. According to the hole machining requirements, the four-axis rotary table is controlled to be matched with the rotary table tailstock to drive the overturning piece to overturn front and back, the front-back angle of the mechanical part assembled on the tool plate is adjusted, then the five-axis rotary table is controlled to drive the tool plate to rotate, the left-right angle of the mechanical part is adjusted, and then double-angle adjustment of the mechanical part can be completed. Therefore, the problems that according to existing drilling equipment, double-angle hole machining can be achieved only through two pieces of equipment or two pairs of special angle clamps, the requirement for the manufacturing precision of a tool is high, and angle adjustment is very difficult in the using process are solved.

The invention relates to the technical field of vibration control, and discloses a quasi-zero stiffness vibration isolator imitating an insect jumping foot structure, which comprises a base and a bearing table between which a vertical spring is arranged, the two sets of connecting rod mechanisms are arranged between the base and the bearing table, each set of connecting rod mechanism comprises two lower connecting rods, two upper connecting rods and two middle connecting rods, the two lower connecting rods are hinged to the top face of the base, the two upper connecting rods are hinged to the bottom face of the bearing table, and the two middle connecting rods are distributed in an X shape; two ends of the two middle connecting rods are respectively hinged with the lower connecting rod and the upper connecting rod; the transverse springs are arranged at the hinged positions of the two lower connecting rods and the two middle connecting rods and the hinged positions of the two upper connecting rods and the two middle connecting rods correspondingly. The vibration isolator is simple in structure, small in transverse size, convenient to assemble and disassemble and easy to adjust, quasi-zero-stiffness vibration isolation is achieved through the special mechanical property of the overall structure, vibration energy can be efficiently absorbed, and the vibration isolator has wide application prospects in the field of low-frequency vibration control.

The invention discloses multifunctional threaded fastener welding equipment, and relates to the technical field of welding equipment.The multifunctional threaded fastener welding equipment comprises a bearing frame and a fixing frame, the fixing frame is arranged in front of the bearing frame, a mechanical arm is arranged at the top of the bearing frame, and a welding device is arranged at the top of the mechanical arm; a butt joint device and a clamping device are arranged on the left side of the fixing frame. The gas bottle is installed on the mechanical arm, the flow and pressure of gas are controlled through the pressure reducing valve, the current flow is checked through the flow meter, the gas is conveyed into the plasma arc welding gun through the pipeline, the gas is output from the output port of the plasma arc welding gun during welding, and a welding area can be prevented from making contact with oxygen through protective gas; therefore, oxidation and impurities are avoided, the welding quality is improved, when the gas cylinder is installed, an operator can replace the gas cylinder more quickly and more conveniently by quickly installing and disassembling the gas cylinder, and the shutdown time caused by replacement of the gas cylinder is avoided.

The invention belongs to the technical field of metal part surface modification, and relates to a composite strengthening method for a carburized surface of a high-bearing gear of an aero-engine. According to the method, high-hardness and high-density ceramic shots are adopted as media for high-energy mechanical shot peening strengthening, the advantage that the subsurface strain hardening effect of the contact strengthening technology is good and the barb-shaped distribution characteristic of mechanical shot peening residual compressive stress are utilized, extremely high residual compressive stress is introduced to the subsurface position, and the contact fatigue performance of the tooth surface of the gear is improved. High-frequency laser shot peening strengthening is used for secondary treatment, so that the surface layer of the material is subjected to plastic deformation, high-amplitude residual compressive stress is introduced into the surface layer of the material within the depth range of more than 500 microns by utilizing the advantage of large influence depth of laser-induced shock waves, and the residual compressive stress can inhibit fatigue crack initiation, has a certain depth and inhibits fatigue crack propagation; and the bending fatigue resistance of the root of the gear can be effectively improved. And an abrasive flow process is adopted, so that the roughness is reduced to be more than 0.4 mu m.

The invention provides a method for automatically centering and assembling a bearing on a long-axis part, and belongs to the technical field of bearing assembly.The method comprises the steps that position information of the long-axis part and the bearing is collected in real time through a binocular camera and a laser distance measuring sensor, a central line equation is calculated through the least square method, and position deviation is determined; a centering adjustment vector is generated to control a multi-degree-of-freedom precise attitude adjustment platform to perform preliminary adjustment, a mechanical arm is matched with high-precision laser ranging to perform precise centering, the centering process is modeled into a weighted undirected graph, an optimal adjustment path is solved, optimal press fitting parameters are calculated based on a bearing press fitting physical mechanics equation, and press fitting is performed. Meanwhile, the assembling process is monitored through a force sensor and a displacement sensor, an assembling quality evaluation matrix is constructed, finally, the assembling result is detected and evaluated, and high-precision automatic assembling of the long-axis part and the bearing is achieved.

The invention provides a fault diagnosis system of an intelligent bamboo cutting machine, which relates to the technical field of mechanical engineering and comprises a feature extraction module used for collecting current and voltage of a motor, a spindle vibration frequency spectrum and dynamic parameters of a quadrilateral monitoring area formed by a spindle bearing, a transmission gear box, a cutter clamping end and a base supporting part in real time, and a current waveform characteristic value, a voltage harmonic component, a vibration frequency domain energy distribution parameter and an abnormal parameter combination in the quadrilateral region are extracted. Through cooperation of multiple modules, parameter acquisition, material-load analysis, dynamic threshold setting, graded early warning and accurate fault diagnosis are realized, and the operation and production continuity of the bamboo cutting machine can be efficiently guaranteed.

A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; and a rotor coupled to the drive shaft and configured to rotate with the drive shaft. The rotor includes a driven magnet having an outer surface. A corrosion-resistant coating may be disposed on the outer surface of the driven magnet. A stator is disposed adjacent the rotor and configured to drive the rotor, causing the rotor to rotate; and a motor is configured to drive the stator. A protection assembly may be disposed adjacent the stator and configured to receive an end of the drive shaft, and may include a protection assembly housing enclosing a protective fluid chamber, the protective fluid chamber including the driven magnet and at least a portion of a bearing configured to engage the end of the drive shaft.

The invention discloses a measuring instrument for measuring the roundness of an inner ring and an outer ring of an automobile hub bearing, and particularly relates to the field of bearing roundness measurement, the measuring instrument comprises a working table, a rotating disc is arranged on the upper surface of the middle of the working table, an adsorption cavity is embedded in the surface of the middle of the working table, and air holes are formed in the surface of the rotating disc; a driving gear is fixedly connected to the outer wall of the middle of the driving shaft, a blade fan shaft is arranged on one side of the inner wall of the adsorption cavity through a bearing, a blade fan gear is fixedly connected to the outer wall of the middle of the blade fan shaft, a spiral blade fan is fixedly connected to the outer wall of the top of the blade fan shaft, and a measurement supporting assembly is arranged on one side of the rotating disc. An auxiliary adjusting assembly is arranged on the side, away from the measurement supporting assembly, of the rotating disc. According to the device, the spiral blade fan can be automatically driven to rotate through the rotation of the rotating disc, so that the workpiece is adsorbed, no mechanical clamping trace exists, the hub bearing workpiece is fixed through the assistance of adsorption force, and the detection stability is improved.

The invention is suitable for the technical field of polishing treatment, and provides a metal pipe fitting groove pre-welding fine polishing treatment device which comprises a positioning assembly, a rotating assembly installed in the positioning assembly and an adjusting assembly connected to one end of the rotating assembly, and the rotating assembly is used for driving the adjusting assembly to rotate. The adjusting assembly is used for polishing the end of a metal pipe fitting, the positioning assembly comprises a workbench, two box bodies are symmetrically connected to the top of the workbench, and a three-jaw chuck is arranged on the side wall of one of the box bodies. According to the device, a U-shaped base and a telescopic air cylinder are arranged, a bearing plate is driven to drive a chamfering mechanism to move, a scraper walks and conducts machining according to the shape of the end of a pipe fitting, and the requirement for machining of grooves of different shapes is met.

The invention relates to the technical field of box type diesel generating sets, in particular to a box type diesel generating set with a damping structure. Comprising a bottom frame, the bottom frame is fixedly connected with a plurality of fixing pins, the fixing pins are jointly connected with a bearing table in a sliding mode, the bearing table is provided with an engine and a generator, the engine is provided with an output shaft, the generator is provided with an input shaft, the output shaft is fixedly connected with a first fixing ring, and the first fixing ring is fixedly connected with a fixing column. The input shaft is fixedly connected with a second fixing ring. The mode that an existing coupler structure is replaced by active connection is adopted, so that when the diesel engine transmits power to the generator through a coupler, the generator cannot rotate along with an output shaft of the diesel engine under the action of viscous engine oil in the generator, and the diesel engine cannot drive the generator to rotate temporarily; therefore, the damage risk of mechanical parts in the diesel engine is reduced.

The invention discloses a high-adaptability variable-rigidity flexible manipulator and a grabbing method thereof, and relates to the technical field of robot end execution. Comprising a plurality of rope-driven flexible grabbing fingers connected to the high-adaptability attaching transmission structure. The rope-driven flexible grabbing finger comprises a multi-joint movable rigid phalanx, a flexible adaptive contact layer and a special-shaped channel air bag. The high-adaptability attaching transmission structure comprises a transmission cavity formed by connecting a flexible attaching silicon rubber sleeve and a fixed bottom plate seat, and a plurality of connecting rods and a plurality of soft springs are arranged in the transmission cavity. The contact face of the mechanical arm and an object is made of a flexible material, flexible contact can be achieved, the high-adaptability attaching transmission structure can be well attached to the grabbed object, the grabbing attaching degree is increased, the grabbing adaptability is improved, meanwhile, under the influence of the air bag and the variable-rigidity structure, rigidity change can be achieved in the bearing process, and the mechanical arm is more flexible. And the bearing capacity of the manipulator is improved.

The invention relates to the technical field of industrial robots, in particular to a mechanical arm joint kinetic model correction method. The method comprises the following steps: acquiring joint data of the mechanical arm, and performing geometric structure feature extraction according to the joint data of the mechanical arm so as to obtain geometric structure data; mechanical arm joint topological structure analysis is carried out according to the geometric structure data, so that a mechanical arm joint topological structure model is obtained; knuckle bearing feature extraction and connection joint feature extraction are conducted according to the mechanical arm joint data, and accordingly knuckle bearing data and connection joint data are obtained; and abnormal operation vibration analysis is carried out according to the joint bearing data and the connection joint data, so that abnormal operation vibration data of the mechanical arm joint are obtained. Dynamic characteristics of the mechanical arm joint are accurately described based on the industrial robot technology, and the positioning precision and the working stability of the mechanical arm can be remarkably improved.

The invention provides a rotary table bearing-torque motor thermal vibration coupling modeling method, and relates to the technical field of machine tool reliability analysis. Comprising the steps of calculating bearing restoring force, torque and elastic rigidity; giving a dynamic balance equation of the main shaft system; unbalanced magnetic pulling force and unbalanced mass excitation are calculated; a displacement field is solved, and load changes caused by the displacement field are transmitted to the thermal model; the contact force borne by the bearing is updated by considering the load effect related to displacement, and the friction heat generation of the bearing and the heat generation of each part of the motor are calculated; calculating thermal deformation and thermal displacement of the bearing; thermal resistance among nodes is calculated, and a temperature field equilibrium equation is given through a thermal resistance network to achieve rapid thermal-mechanical coupling analysis; the thermal equilibrium equation is solved to calculate temperature response; importing the latest temperature into the kinetic model; lubricating grease viscosity and bearing thermal deformation are updated; and repeating the steps to finally obtain the main shaft displacement field and temperature field response. The method is high in accuracy, high in universality, low in test cost and high in test efficiency.

The invention relates to the technical field of power switch detection, in particular to a power switch testing device of a high-voltage power distribution cabinet, which is used for detecting the mechanical performance of a circuit breaker handle and comprises a bearing mechanism and a clamping mechanism, and the clamping mechanism is composed of two clamping plates which are arranged on a bearing table in a front-back opposite sliding manner; the device further comprises pushing mechanisms, and the multiple pushing mechanisms are evenly arranged on the clamping plate from left to right. The clamping condition of the circuit breaker handle during operation is judged according to the pressure value sensed when the front and back opposite pressure sensors repeatedly and alternately push the circuit breaker handle. If the condition that the handle of the circuit breaker is pushed in the whole process is simulated, the pressure sensor on the pushing rod monitors the thrust required in the whole pushing process of the corresponding handle in real time, and the flexibility or the jamming condition of the handle of the circuit breaker in the whole operation process is objectively judged according to the magnitude of the thrust.

The invention discloses a deformation and bearing integrated modular rope-driven flexible mechanical arm and a self-sensing method thereof.The flexible mechanical arm comprises a driving mechanism and a variable-rigidity flexible mechanical arm body, the variable-rigidity flexible mechanical arm body comprises a rope, a corrugated pipe and elastic units, and the multiple elastic units are filled in an inner cavity of the corrugated pipe; the corrugated pipe is provided with a rope guide hole extending in the axial direction of the corrugated pipe, one end of the rope is fixedly connected with the power output end of the driving mechanism, the other end of the rope penetrates through the rope guide hole and is fixedly connected with the corrugated pipe, and when the driving mechanism works, the rope can be driven to move, and then the mechanical arm is pulled to deform. The flexibility of the mechanical arm is improved through fusion of active deformation and a bearing function, additional rigid structure supporting is not needed, and the overall design is simplified; and the bearing capacity and rigidity are adaptively improved through blocking of the elastic units, and the complexity of the driving system is reduced. Meanwhile, the mechanical arm is provided with a self-sensing system, the state of the mechanical arm can be monitored in real time, and the control precision is improved.

The fuel oil flow sensor comprises a mechanical unit and an electrical unit, the mechanical unit comprises a driving assembly, a rectifying assembly and a rotating assembly which are sequentially arranged on a central shaft, the rotating assembly comprises an impeller, a volute spiral spring and a drum wheel which are sequentially arranged on the central shaft, and the impeller is connected with the drum wheel through the volute spiral spring. The impeller is connected with the central shaft through a bearing, magnets are respectively mounted on the impeller and the drum wheel, the electrical unit comprises an impeller sensing assembly and a drum wheel sensing assembly which respectively correspond to the magnets on the impeller and the magnets on the drum wheel, and an auxiliary turbine is arranged on one side, close to the medium outlet, of the drum wheel on the central shaft. The auxiliary turbine is arranged on one side, close to the medium outlet, of the drum wheel on the central shaft, and the rotating speed of the sensor is adjusted by controlling the rotating resistance of the auxiliary turbine in the medium, so that the rotating speed of the sensor is controlled within a certain range; the problem that the output signal stability, the measurement accuracy of the sensor and the service life of the bearing are affected by too fast rotating speed of the sensor is solved.

The invention discloses a flywheel and gravity hybrid energy storage system and method based on clutch mechanical coupling. The system comprises a high-speed inertia flywheel, a flywheel protection cover, a speed-increasing gearbox, a flywheel pit, a flywheel main shaft, a load-bearing fixing foundation, a bearing, a coupler, a motor, an equipment fixing device, an electromechanical detection device, a speed-reducing gearbox, a lifting system, a first high-speed clutch, a second high-speed clutch and an intelligent control unit. According to the invention, the quick response characteristic of the high-speed flywheel and the large-capacity advantage of gravity energy storage can be fully utilized to realize flexible switching of the high-speed flywheel and the gravity energy storage in different operation modes, and the closed state of the clutch is dynamically adjusted through the intelligent control unit, so that the frequency modulation, peak regulation and inertia support performance of a power grid is optimized; meanwhile, mechanical wear and energy loss are reduced, and the overall operation efficiency and reliability of the system are improved.