1857 results about "Speed reduction" patented technology

The invention relates to the technical field of forklifts, in particular to a wheel edge driving system driven by a hydraulic motor and a forklift. The wheel edge driving system driven by the hydraulic motor comprises a clutch assembly, an input connecting shaft and a speed reduction adjusting assembly. Efficient power transmission can be achieved, large torque can be effectively borne, rapid power switching and control can be achieved, the requirements under different working conditions are met, the controllability and flexibility of a vehicle are improved, in addition, the flow rate of cooling lubricating oil in the rotating output hole, the hollow conical cavity, the speed reduction cavity and the clutch control cavity can be increased, and the service life of the vehicle is prolonged. Therefore, the cooling efficiency is improved, the cooling liquid can be evenly distributed in the equipment, the local overheating phenomenon is avoided, effective heat dissipation is achieved, performance reduction or faults caused by too high temperature in long-time operation of the equipment are prevented, and the reliability of the equipment is improved.

The invention discloses a double-closed-loop cooperative control method of a direct-drive electric chassis and a power system, relates to the technical field of power control of electric special vehicles, and provides a rotating speed and torque double-closed-loop cooperative control architecture, and realizes double-core real-time cooperative operation and dynamic optimization of motor output characteristics through a 32-bit processor. A direct-drive transmission structure is combined, a traditional speed reduction device is omitted, a flat wire motor directly drives a rear axle through a transmission shaft, and a four-in-one controller is matched, so that the system loss is reduced by 33%, and the power density is improved by 15%; on the basis of real-time temperature / electric quantity data of a lithium iron phosphate battery management system, control parameters are adaptively adjusted, and the bottleneck of performance attenuation in a low-temperature environment of-35 DEG C is broken through; and a high-voltage interlocking and insulation monitoring module is integrated, and an emergency hydraulic system is automatically switched when an electrical fault occurs, so that multi-stage safety guarantee is formed. According to the technology, the energy recovery efficiency is remarkably improved by 20%, and the wind resistance stability and the extreme environment reliability are effectively enhanced.

The invention relates to the technical field of vehicles, and provides an anti-lock control method for a multi-axle vehicle. The method comprises the following steps: S1, acquiring driving state information of wheels, wherein the driving state information comprises a slippage degree, a wheel speed deceleration and a wheel speed vector; s2, under the condition that the slippage degree and the wheel speed deceleration meet the first condition, the ABS adjusting device enters a pressure reduction mode; s3, under the condition that the wheel speed vector meets a second condition, the ABS adjusting device enters a pressure maintaining mode; s4, under the condition that the slippage degree and the wheel speed vector meet a third condition, the ABS adjusting device enters a pressurization mode; and S5, anti-lock control is conducted on the multi-axle vehicle according to the pressure reduction mode, the pressure maintaining mode and the pressure increasing mode. According to the method, the problem that some wheels are easy to lock due to the deviation of empirical values and load distribution in the prior art is solved, the adaptability and the braking safety of the whole vehicle chassis can be greatly improved, and the braking performance of the vehicle is further improved.

The invention relates to a single-motor two-gear efficient electric drive axle transmission system which is characterized by comprising a motor, a parallel shaft set, a driving gear set, a driven gear set, a gear shifting combination gear, a spline gear hub, a gear shifter, a differential mechanism module and a tire module. Symmetrical arrangement is adopted, gear parameters can be designed more reasonably, the first shaft, the second shaft and the fourth shaft are located on the two sides of the half shaft, the third shaft is a hollow shaft sleeved on the right half shaft, the structure is more stable, and space is saved. According to the gear shifter structure, the two-gear function can be achieved, a low gear is matched with a large transmission speed ratio, four-stage speed reduction is achieved, a large enough torque is provided for a vehicle under the working conditions such as starting, getting out of difficulty and climbing, a high gear is matched with a small transmission speed ratio, and a high enough rotating speed is provided for the vehicle under the high-speed working condition; the first gear is four-stage speed reduction, the transmission ratio is large, and large torque can be provided under the low-speed working condition; and the second gear adopts two-stage speed reduction, so that mechanical loss can be reduced, and the transmission efficiency is improved.

The invention discloses a gravity center self-adjustment control system and method based on an electric balance car, and relates to the technical field of electric balance car control, and the gravity center self-adjustment control system comprises a multi-source sensing module, a control decision module, a multi-mode execution module and a safety control module. According to the invention, attitude, pressure, motion and environment data are fused in real time through the multi-source sensing module, three types of instability risks of sudden lateral offset, continuous slope offset and load distribution abnormity are accurately identified, and the control decision module intelligently starts differential compensation, wheel track adjustment or counterweight adjustment according to risk types. The multi-mode executing mechanism can cope with composite unbalance in a cooperative mode, the safety control module adopts a dynamic threshold value to adjust intervention sensitivity, multiple guarantees are formed in combination with a fault diagnosis and speed reduction parking mechanism, and finally the control burden of a user is relieved while the trafficability of complex road conditions is improved.

The utility model discloses an electric two-wheel wheel core staggered tightening overlying combined type speed reduction driving electric driving system which comprises a power assembly and a hub, the power assembly comprises a box body assembly, a motor assembly and a speed reduction transmission assembly, and the motor assembly and the speed reduction transmission assembly are both installed in the box body assembly. The box body assembly comprises a partition plate assembly, a motor shell assembly and a speed reducer box body assembly, wherein the motor shell assembly and the speed reducer box body assembly are installed on the two sides of the partition plate assembly through threaded fasteners respectively. By the adoption of the electric two-wheel wheel core staggered tightening and overlying combined type speed reduction driving electric driving system, the box body assembly is of a split type assembly structure, when parts are maintained and replaced, the whole box body assembly does not need to be disassembled, only local disassembly can be carried out, assembling and maintaining convenience is improved, maintaining cost is reduced, maintaining time is shortened, and the service life of the electric two-wheel wheel core is prolonged. All parts of the box body assembly can be reliably locked through the threaded fasteners, so that the structural strength and reliability of the box body assembly are ensured, and the convenience of disassembly and assembly is also ensured.

The utility model discloses a speed reducing mechanism for an automatic change-over switch and the automatic change-over switch, and relates to the technical field of low-voltage electric appliances. The speed reduction mechanism for the automatic change-over switch comprises a speed reduction wheel and a rocker, the speed reduction wheel is movably arranged on an output shaft of an operating mechanism of the automatic change-over switch in a sleeving mode, a speed reduction rail is arranged on the speed reduction wheel, and the rocker is connected with the speed reduction wheel. The output part of the operating mechanism is abutted against the speed reduction wheel after running for a certain idle stroke, the speed reduction wheel is forced to rotate, and the rocker is driven to move along the speed reduction track to decelerate rotation of the output shaft. The speed reducing mechanism for the automatic change-over switch and the automatic change-over switch can solve the problem of power supply short circuit caused by too fast switching of the moving contact between the common closing position and the standby closing position in the prior art.

The invention discloses a joint module and a robot, and relates to the technical field of robotics.The joint module comprises a motor, a speed reducer and an elastic connecting piece, the motor is provided with an output shaft, and the speed reducer is arranged on the output shaft; the elastic connecting piece is annularly arranged on the output shaft and located between the output shaft and the speed reduction device. When the load borne by the speed reduction device is larger than a first preset value, the elastic connecting piece can elastically deform so that the speed reduction device can rotate relative to the output shaft. According to the technical scheme, the elastic connecting pieces are arranged on the speed reduction device and the output shaft of the motor, the deformation effect of the elastic connecting pieces is equivalent to an overload protection device, and impact of overload on the speed reduction device can be relieved under the condition that the speed reduction device is not damaged; therefore, the problem that the speed reducer is easy to damage under the condition that the joint module is subjected to external overload impact load is relieved.

The invention belongs to the field of wind power generation, and particularly relates to a separated self-adaptive wind driven generator which comprises a base, a resistance rotating shaft and a lift rotating shaft are sequentially sleeved with a fixed shaft, an upper bevel gear and a lower bevel gear which are meshed with each other are arranged at the top end of the lift rotating shaft, and a sliding block is arranged on the outer side of the lower bevel gear. A protection device is arranged on the lifting force rotating shaft, a plurality of speed reduction blocks are arranged on the protection plate in a coupling mode, and the other ends of the speed reduction blocks are connected with the protection sleeve through speed reduction springs; a sliding groove is formed in the resistance rotating shaft, the sliding block moves in the sliding groove, and a limiting groove is formed in the sliding groove; the bottom of the lower bevel gear is connected with the supporting ring through a limiting spring, and a speed reduction groove is formed in the inner wall of the resistance rotating shaft and corresponds to the speed reduction block in position. According to the wind driven generator, the lifting force type fan blades and the resistance type fan blades can be automatically separated or combined according to the rotating speed condition, the hysteresis quality of the resistance type fan blades during high-speed operation is avoided, and the situation that the rotating speed of the fan blades is too high, and equipment damage is caused can be prevented.

The invention discloses a laser welding device for automobile part production. The laser welding device comprises a welding machine base, a multi-shaft combination mechanism, a bearing platform base and a navigation system. A welding mechanical arm and a speed reduction steering engine are arranged on the surface of the welding machine base, and a laser welding head is arranged at the execution tail end of the welding mechanical arm and used for welding. The output end of the speed reduction steering engine is connected with the bottom face of the deflection bearing platform through a ball coupling, and the deflection bearing platform is driven to achieve deflection motion. The bottom end of the multi-shaft combined mechanism is fixedly connected with the welding machine base. Multi-axis movement inclination is achieved through a multi-axis combined mechanism, deflection movement is achieved through a speed reduction steering engine, a welding path is dynamically adjusted in combination with a navigation system, and it is ensured that a welding head runs along the optimal path; and through linkage of the vibration sensor and the control system, vibration in multi-axis movement is effectively restrained, and the welding precision is improved. The method has the characteristics of high degree of freedom, high precision and high reliability, and is suitable for welding production of automobile parts in complex shapes.

The invention relates to a method for preventing rear-end collision of strip steel in a coiling area. The method comprises the steps of collecting data, calculating safety time, feeding back the safety time, adjusting the speed of a finishing mill and the like. According to the method for preventing the rear-end collision of the strip steel in the coiling area, the traditional mode that the rolling rhythm is given depending on artificial experience is changed, only the preparation time of coiling field equipment is accurately calculated, the steel feeding condition is automatically judged, the fastest rhythm does not need to be given manually, the dependence on manpower is changed, and the production efficiency is improved. And the labor intensity of operators is reduced, the automatic steel rolling level is improved, and meanwhile, steel scrap accidents caused by inaccurate rolling rhythm calculation are avoided. Through a process control program, accurate tracking of the head and tail positions of the strip steel is achieved, automatic speed keeping or speed reduction is achieved through program judgment, effective automatic feedback control is provided for uncertainty of process control, and deep promotion of the extreme cost of a company on the production line is boosted.

A door hinge device for a vehicle is capable of facilitating two doors to be simultaneously or independently opened or closed in a state in which rotation trajectories of the doors are ensured as a hinge bar connected to a carrier of a speed reduction unit through a hinge shaft and a rack and a pinion connected to a rotation shaft of a sun gear set a rotation amount of the doors during a process in which a hinge unit of the door moves along a rail in a diagonal direction toward the outside of a vehicle body in a vehicle including no B pillar.

The invention is suitable for the field of cycloidal speed reducers, and provides a cycloidal speed reducer which comprises a shell, an input mechanism, an output mechanism, a speed reduction mechanism and a limiting assembly, and is characterized in that the shell comprises a speed reduction supporting front shell and a speed reduction supporting rear shell, and threaded holes are formed in the speed reduction supporting front shell and the speed reduction supporting rear shell; threaded holes are formed in the speed reduction supporting front shell and the speed reduction supporting rear shell in an annular mode, the speed reduction supporting front shell and the speed reduction supporting rear shell are installed in a matched mode through screws, the machining cost of the cycloid speed reducer is reduced, the service life is prolonged, the loss of parts is smaller, meanwhile, the service life can be prolonged by replacing a quick-wear shaft sleeve, and the service life of the cycloid speed reducer is prolonged. And the use cost of the cycloidal-pin wheel speed reducer is further reduced.

The utility model provides a distributed electric drive system and a vehicle, the distributed electric drive system comprises a speed reducer, two opposite sides of the speed reducer are correspondingly provided with a first input end and a second input end; the first driving device and the second driving device are located on the two opposite sides of the speed reduction device, the first driving device is connected with the first input end, and the speed reduction device, the first driving device and the second driving device define a containing space; the controller is provided with a first installation part, and the first installation part is arranged in the containing space and corresponds to the speed reduction device up and down. According to the distributed electric drive system, the first driving device and the second driving device protrude upwards relative to the speed reduction device, so that the groove capable of being provided with the first mounting part is formed between the speed reduction device and the first driving device and the second driving device which are located on the two sides, and on one hand, the height size of the distributed electric drive system is reduced; direct connection between a motor three-phase line of the driving device and a controller copper bar is facilitated, and the copper consumption is greatly reduced.

The invention discloses a small RV speed reducer for humanoid robot joints. The small RV speed reducer comprises an input assembly, a speed reduction assembly and an output flange. The input assembly drives the transmission sun gear through the input shaft and is meshed with the crank planetary gear set to form first-stage speed reduction. The crank planetary gear set drives the small-tooth-difference gear pair assembly (including the upper / lower winding wheel and the pin wheel housing) to perform planetary motion with a certain angle phase difference, and second-stage speed reduction is achieved. And the output flange is in threaded connection with the input end cover to finish power output. Through compact integration of the planetary gear and the cycloidal gear mechanism, the outer diameter of the speed reducer is controlled within 80 mm, the thickness of the speed reducer is smaller than 30 mm, the high reduction ratio is guaranteed, meanwhile, the size and weight are remarkably reduced, the transmission efficiency is greatly improved, and the speed reducer is suitable for humanoid robot joint scenes with limited space.

The invention relates to a hypocycloidal pin gear speed reducer assembly, a speed reducer and application. The speed reducer comprises an input shaft system, a first output shaft system and a second output shaft system; the number ratio of rotors to stators of the input shaft system is N: (N + 1), the section contours of the rotors and the stators are equidistant lines of a pair of conjugated hypocycloids, the rotors do planetary motion in the stators, the rotors rotate around the centers of the rotors and revolve around the centers of the stators at the same time, and the speed ratio of rotation to revolution is (N + 1): N. An input shaft rotates at the revolution speed of the rotors. Output shafts in the first output shaft system and the second output shaft system are connected through splines on the shafts and rotate according to the difference between the rotation speed and the revolution speed of a rotor, the purpose of speed reduction is achieved, and the speed reduction ratio is N: 1; and the rotor and the stator are made of steel with the hardness of over HRC58. The hypocycloid pin wheel speed reducer has the advantages of being high in transmission efficiency, stable in operation and long in service life, the outer diameter of the hypocycloid pin wheel speed reducer is smaller than the allowable maximum outer diameter of an oil well shaft, the hypocycloid pin wheel speed reducer can be suitable for screw pump oil extraction, and the technical problem that a pin wheel speed reducer cannot be suitable for an oil well all the time is solved.

The invention relates to the technical field of fire alarm devices, in particular to a fire-fighting fire alarm structure which comprises a protective shell, a ventilation cover is detachably mounted at the bottom end of the protective shell, a stabilizing plate is fixedly mounted at the inner end of the protective shell, a speed reduction disc is rotatably mounted at the center of the stabilizing plate, and a driving rod is arranged at the bottom end of the speed reduction disc. Fan blades are fixedly installed at the ends, away from the speed reduction disc, of the driving rods through bolts, an air suction barrel used for sucking air is fixedly installed at the upper end of the inner side of the stabilizing plate, a stabilizing frame is fixedly installed at the bottom end of the inner side of the stabilizing plate and located on the left side of the air suction barrel, and a metering device used for recognizing whether smoke is fire gas or not is arranged at the inner end of the stabilizing frame; according to the invention, by weighing the mass of the smoke particles, whether the smoke is fire smoke or not is judged, so that the fire smoke and the cigarette smoke can be distinguished, and false alarms can be reduced.

The invention discloses a large reduction ratio robot joint actuator with a built-in speed reduction structure, which comprises two inner gear rings, a plurality of planet gears, an actuator shell and an actuator cover plate, a containing space is jointly formed between the actuator shell and the actuator cover plate, and a motor stator and a motor rotor are mounted in the containing space. The motor stator is fixed to the actuator shell. A plurality of planet gears are arranged in the two inner gear rings, the planet gears are evenly distributed in the circumferential direction of the inner gear rings, each planet gear is meshed with the two inner gear rings, and the meshing center distances are kept equal; the two inner gear rings are the same in modulus and unequal in tooth number, and the two inner gear rings are the fixed gear ring and the output gear ring respectively. The whole axial size of the actuator is compact, under the condition that a speed reduction structure is extremely simple, the larger speed reduction ratio, the larger gear modulus and the larger gear width are obtained compared with a conventional speed reduction scheme, the strength and the bearing capacity of the actuator are greatly improved, the service life of the actuator is greatly prolonged, the assembly technology is simple, cost is low, and the structure is reliable.

The utility model discloses an automatic window opening machine, and relates to the field of window opening equipment. The automatic window opening machine comprises a box body, a driving assembly, a speed reduction chain assembly, a transmission chain assembly, an electromagnetic clutch component and a fluid damping component, the speed reduction chain assembly is jointly driven by the first driving part and the second driving part, so that the power and the cruising ability of the window opening machine are improved; during window opening work, the electromagnetic clutch component is switched to be in the state that the input end of the transmission chain assembly and the speed reduction end of the speed reduction chain assembly are connected and combined so as to implement window opening work. The acting force of transmission of the transmission chain assembly is damped by the fluid damping part, so that the force transmission effect of the transmission chain assembly is relieved, and the risk that the speed reduction chain assembly and the transmission chain assembly are damaged is reduced. According to the automatic window opening machine, buffering damping is provided for power attenuation or power reverse change through the fluid damping component, damage to a transmission structure can be reduced, the service life of the window opening machine can be prolonged, and operation stability of the window opening machine can be improved.

The invention discloses an aero-engine gear high-cycle fatigue reliability analysis method, which takes a certain aero-engine gear transmission system as an object, and establishes a gear finite element model by using an ANSYS parameterized design programming language; the method comprises the steps that after test data are obtained, an active learning Kriging proxy model is adopted to obtain a proxy finite element model, then the gear proxy finite element model is corrected through a QMC-based gradient deceleration particle swarm algorithm, and a corrected high-precision finite element model is obtained; in consideration of the influence of the uncertainty of the size, the material and the load on the reliability of the gear, fitting an S-N curve by adopting gear contact fatigue test data; then, correcting the S-N curve and establishing a life-based tooth surface contact fatigue limit state function; and finally, performing reliability analysis in combination with the corrected high-precision finite element model.

The invention relates to a high-speed rail traction system motor temperature monitoring device based on an RBF neural network, belongs to the field of intelligent sensing, and solves the problems of low sensor precision and high early warning and false alarm rate. Comprising a plurality of traction motor temperature sensors which are distributed in each motor and used for measuring the temperature of the motor in real time, obtaining the current motor temperature and transmitting the current motor temperature to a microprocessor; the microprocessor performs nonlinear error temperature compensation on the current motor temperature monitored by the sensor by using an RBF neural network based on an improved particle swarm to obtain compensated motor temperature values, judges whether all the compensated temperature values are smaller than a first temperature threshold value or not, and sends a first early warning instruction to the early warning module if not; a speed reduction instruction is sent to a high-speed rail centralized control center, and a signal is sent to the air feeder corresponding to the motor with the compensated temperature value exceeding the preset temperature threshold value for cooling; if any one of all the compensated temperature values is larger than or equal to a second temperature threshold value, a stopping instruction is sent; and the early warning module performs early warning based on the early warning instruction. And accurate temperature monitoring is realized.

The invention discloses a balanced two-wheeled vehicle trajectory tracking optimization control method based on an SCMG, and solves the trajectory tracking deviation problem under the SCMG physical boundary condition. The method comprises the following steps: adaptively adjusting a preview distance, calculating the preview distance according to a vehicle speed, a curvature and a transverse deviation value, and limiting a range; the maximum turning angle and the rotating speed of the handlebar are coupled with the vehicle speed, and large turning is preferentially decelerated. The method further comprises the steps of designing a reconnaissance distance on the basis of a pure tracking method, and limiting the speed in advance by calculating the reconnaissance distance, finding a reconnaissance point, calculating the reconnaissance curvature and solving Wherein the preview distance, the reconnaissance distance, the reconnaissance curvature, the speed limit value and the like have corresponding calculation modes, the deceleration, the constant value and the like of the vehicle are set according to actual situations, coupling of the handlebar and the vehicle speed is achieved through a mapping table or a function, and an empirical value is obtained through a real vehicle critical state test. According to the method, the trajectory tracking effect is optimized, and the driving control performance is improved.

The invention relates to a dual-motor drive assembly system which comprises a power output source, and an input unit is oppositely arranged on the power output source so as to be connected with a speed reduction unit. The speed reduction unit transmits the torque to the low-speed driving gear; a first compound gear shaft is arranged at the output end of the low-speed driving gear, the first compound gear shaft and the low-speed driving gear are in meshing transmission with a second compound gear shaft, the second compound gear shaft comprises two gears different in modulus, and the output shaft gear is arranged at the output end of the second compound gear shaft. And the output shaft gear is meshed with the pinion of the first compound gear shaft to finish torque output so as to meet the requirements of the whole vehicle. By using the two intermediate shafts, the gearbox can more effectively distribute power from different motors, energy loss is reduced, and transmission efficiency is improved. And due to the multi-gear design, the mine car can keep the optimal performance under different loads and speeds.

The invention discloses a deceleration sliding table pre-braking simulation collision test system and method, and the system comprises a sliding table assembly and a track which are located above the track and can move along the laying direction of the track; the traction assembly and the brake assembly are located on the two opposite sides of the sliding table assembly respectively, and the cable is arranged in the track, connected with the traction assembly and the detachable sliding table assembly respectively and connected with the brake assembly in a clamped mode; the traction assembly is used for pulling the cable to move towards the traction assembly, so that the sliding table assembly moves towards the traction assembly; the brake assembly is used for extruding the inner side wall of the track, so that the sliding table assembly is braked to decelerate under the reverse force of the moving direction of the traction assembly; and the collision waveform reproducing device is fixed to the side, close to the traction assembly, of the rail, so that the sliding table assembly can collide with the collision waveform reproducing device when moving in the direction close to the traction assembly. And a scene in which collision still occurs after emergency braking of a real vehicle is simulated, so that the test is more real.

The invention discloses a rollover risk pre-judgment and speed closed-loop control system and method integrating an IMU and an encoder, and relates to the technical field of vehicle active safety control. The system comprises an inertial measurement unit, an encoder, a controller, an execution mechanism and an alarm, the inertial measurement unit provides vehicle attitude data, and the encoder provides vehicle speed information. And the controller fuses the data in real time to calculate a vehicle rollover risk index, and sets a double-threshold criterion: when the risk is close to a threshold, an early warning is given, and when the risk exceeds the threshold, a deceleration control instruction is sent to the execution mechanism. The executing mechanism adjusts vehicle power output or braking accordingly, and automatic speed reduction is achieved. The controller forms a closed-loop control loop through feedback of the encoder, the speed reduction force is dynamically adjusted, and the speed of the vehicle is stably reduced to a safe range. Through the method, the rollover risk of the vehicle can be sensed in advance and actively intervened, rollover accidents are avoided, and the rollover-resistant safety of the vehicle is remarkably improved.

The invention relates to the technical field of automobile safety, and provides an electric tail gate anti-pinch control method and system, which introduces a prediction + self-adaption intelligent decision normal form, on one hand, the motion information of a tail gate is obtained, and the time sequence data of an obstacle is combined to be input into an LSTM model to predict the track of the obstacle; a collision prediction conclusion is output to be matched with a graded speed reduction strategy to execute tail gate control, and through prediction in advance, the system response efficiency is effectively improved, and the clamping damage probability is reduced; and on the other hand, when a contact signal of the tail gate is detected, real-time contact force and real-time vehicle working condition information are obtained in real time, a dynamic anti-pinch threshold value is calculated and compared with the real-time contact force for analysis so as to execute tail gate control, the dynamic anti-pinch threshold value is dynamically adjusted according to the vehicle working condition and the tail gate state, scene adaptation is carried out, the anti-pinch recognition accuracy can be improved, and the safety of the vehicle is improved. The false triggering probability is reduced; therefore, the electric tail gate anti-pinch system which is faster in response, more intelligent and more reliable is obtained.

The invention relates to the technical field of deceleration motor monitoring and diagnosis, in particular to a deceleration motor health state on-line monitoring and fault diagnosis system, which comprises an operation signal acquisition module for acquiring and processing a signal to generate a trend set, and a vibration and current difference spectrum identification module for establishing a mapping to generate a coupling set, the rotating speed response correlation analysis module analyzes fluctuation and generates a relation graph, the component state diagnosis module identifies abnormal nodes and generates a state set, and the health and fault confirmation module accurately locates fault source points and generates fault identification results through multi-dimensional cross comparison. Through same-period multi-dimensional signal alignment and response identification, dynamic mapping and difference association are established, a quantitative trend and an electromechanical track are formed, coupling analysis integrity is improved, an electromechanical change rule is synchronously extracted, feature response is quantitatively expressed, abnormal node identification precision is enhanced, early fault capture sensitivity and identification are improved, data isolation is reduced, and the method is suitable for large-scale popularization and application. And a logic consistent health judgment basis is constructed.

The invention belongs to the technical field of inductance coil sealing, and discloses a high-sealing inductance coil which comprises a speed reduction shell, an installation cover is installed on the speed reduction shell, a coil shell is installed in the speed reduction shell in a sliding mode, and positive guide baffles distributed in a circumferential array mode are fixedly connected into the speed reduction shell; through cooperation of structures such as the forward guide baffle and the reverse guide baffle, the forward guide baffle and the speed reduction column are arranged between the speed reduction shell and the inner baffle ring in the circumferential direction in an array mode, and the closed guide baffle is arranged at the position of the sealing sliding plate and fixedly connected with the forward guide baffle and closed, so that the speed reduction shell and the inner baffle ring form an annular space; the forward guide baffle, the reverse guide baffle, the closed guide baffle and the speed reduction column jointly form a one-way circulating zigzag channel, so that glue for sealing the inductance coil flows in the channel jointly formed by the forward guide baffle, the reverse guide baffle, the closed guide baffle and the speed reduction column after being poured into the speed reduction shell.

The invention discloses an overspeed protection device for a metallurgical electric hoist, and relates to the technical field of cranes. The overspeed protection device for the metallurgical electric hoist comprises the electric hoist, a walking device is fixedly connected to the top of the electric hoist, a connecting shaft is fixedly connected to the right side of a reel of the electric hoist, an overspeed detection mechanism is fixedly connected to the right side of the reel of the electric hoist, and a speed reduction mechanism is fixedly connected to the outer wall of the connecting shaft. The outer wall of the connecting shaft is fixedly connected with a brake mechanism on the right side of the speed reduction mechanism. According to the overspeed protection device for the metallurgical electric hoist, a locking telescopic rod extends and is clamped into a corresponding groove in a locking disc, so that a connecting wheel rolls up a pulling wire, a pulling-up block is lifted upwards from the bottom of a guide pipe, part of energy is converted into potential energy of the pulling-up block, and the speed of a lifting hook of the electric hoist is slowed down; and the disc brake disc is prevented from losing the braking capacity due to overheating.

The invention discloses a six-shaft simple electric control speed change clutch sheet type electric driving system which comprises a power input mechanism, a speed change assembly and a two-shaft power output mechanism, and a power input shaft, a speed reduction shaft assembly, a reverse gear shaft mechanism and the two-shaft power output mechanism of the speed change assembly are arranged on the periphery of a main shaft in the circumferential direction. And the structure is simple and reliable, the expansibility is excellent, and various functional modules such as human-controlled reversing, inertial reversing and active upshift and downshift according to real-time power can be flexibly expanded according to actual requirements. The motor can always and efficiently keep working in the current high-efficiency area according to the change of the driving intention, a multi-parameter control strategy with the consciousness and intention of people as priority is achieved, and harmony and unification of people, vehicles, roads and running resistance / running loads are achieved. The important scientific and engineering technology common key problem of traction / driving force-running resistance / load efficient and accurate balance control is solved.