2314results about How to "Reduce vibration" patented technology

The invention discloses a dynamic control method for a complex curved surface five-axis numerical control machining tool vector, which comprises the following steps of: scanning the surface of a target workpiece by using a high-precision three-dimensional scanner to obtain point cloud data; based on the point cloud data, establishing a mathematical model S (u, v) of the target complex curved surface; a mathematical model based on the target complex curved surface; establishing a comprehensive dynamic model of the five-axis numerical control system; optimizing the initial tool posture in combination with the kinetic model; collecting dynamic operation data of the cutter and the workpiece; on the basis of the dynamic operation data, a model predictive control (MPC) algorithm is used for adjusting the machining path and the cutter direction in real time; according to the method, a comprehensive dynamic model of a five-axis numerical control system is established, dynamic coupling effects of a machine tool kinematic chain, cutter flexibility, cutting force, a temperature field and a stress field are brought into a unified framework, and complex dynamic behaviors are accurately described and controlled through multi-body dynamic modeling and an optimization algorithm.

The present invention discloses a mechanical tensioning gravity energy storage power generation device based on a rail train and a power generation track line thereof, including a power station under the track, two rows of drive plates are arranged at the bottom of the train, the power station includes a box buried under the track, a power generation assembly is arranged in the box, the power generation assembly is arranged in the middle of the track, and the power generation assembly is connected to a tensioning rope assembly, the tensioning rope assembly includes a tensioning steel wire rope, one end of the tensioning steel wire rope is connected to the power generation assembly and arranged in the box, and the other end is connected to a mechanical tensioning adjustment assembly, the mechanical tensioning adjustment assembly is arranged outside the track, and the mechanical tensioning adjustment assembly drives the power generation assembly by adjusting the tensioning force of the tensioning steel wire rope, and is pressed toward the drive plate on the train. The present invention adopts a mechanical tensioning rope design to realize the pressing of the power generation assembly and the train drive plate, avoids the power station pressing being affected by the ambient temperature, improves the applicability of the power station, and is also more convenient for maintenance and adjustment.

The invention relates to the technical field of wind power generation, and discloses a wind turbine generator set with a vibration reduction function and a construction method thereof.According to the wind turbine generator set with the vibration reduction function, a vibration reduction structure is additionally arranged, and the two elastic ends, arranged in the axial direction, of an elastic buffering piece are connected with the outer wall of a tower drum and the inner wall of a sleeve correspondingly; the elastic buffering piece can effectively absorb and relieve vibration of the sleeve, vibration impact borne by the tower drum is reduced, the overall stability of the wind turbine generator is improved, and safe and stable movement of the wind turbine generator is guaranteed. Compared with a conventional scheme that the diameter or the wall thickness of the tower drum is increased, the damping structure is simple in structure, convenient to install and maintain and low in cost.

The invention discloses a punch forming device for producing an automobile engine oil pan, and relates to the technical field of punch forming, and the punch forming device comprises a composite mechanism. According to the punch forming device for production of the automobile engine oil pan, through the design of the composite mechanism, materials are placed in the processing mechanism and conveyed to the composite base through the processing mechanism, then a movable cross beam is controlled through a hydraulic column to enable a pressing module to extrude a bearing module, and therefore the punch forming effect is achieved; the effect of manually laying materials is reduced, potential safety hazards of operators are reduced, the operation environment is optimized, after long-time operation of the bearing module, parts can be seriously abraded, and therefore the stamping precision of follow-up materials is affected, the bearing module can be replaced, and in the process that the pressing module extrudes the materials towards the bearing module, the pressing module can be replaced, and the pressing module can be replaced. And the magazine mechanism contracts to store force, so that after stamping is finished, ejection is performed through the magazine mechanism, the effect of preventing material adhesion is achieved, and the subsequent operation efficiency is prevented from being influenced.

The invention discloses a machining control method, device and system based on a five-axis machining machine tool and a medium. The method comprises the steps that geometrical characteristic parameters of a to-be-machined workpiece and tool characteristic information are obtained, a cutting force model is established according to the obtained geometrical characteristic parameters, and cutting force distribution conditions under different paths are calculated; in the cutting force model, based on the cutting force distribution condition and the geometric feature parameters, generating an optimal cutter path corresponding to the cutter feature information by using a path optimization algorithm; according to the generated tool path and tool feature information, establishing a simulation environment of the five-axis machining tool, and simulating motion states of the tool in different paths; in the simulation environment, setting a reward function including path smoothness and cutting force stability; using a reinforcement learning algorithm to optimize the fairness of the tool path, and generating a smooth tool path; verifying the generated smooth tool path in a simulation environment; and triggering a processing execution instruction. The machining precision and the surface quality are improved.

The utility model discloses an indexable wave-shaped edge turning blade which comprises a blade body with a center hole in the geometric center, a cutting unit is arranged on the upper surface of the blade body, and the cutting unit comprises an arc edge located at the vertex angle of the blade body and a main cutting edge connected with the two ends of the arc edge. Chip flutes are formed in the main cutting edge in the direction extending towards the center hole, and every two adjacent chip flutes located at the vertex angle are symmetrically separated through an isolation belt; the main cutting edge includes a wave-shaped cutting edge, the wave shape of which is shaped in an axial direction. Through the design of the wave-shaped cutting edges, the chip flutes and the isolation belts, the cutting force is effectively reduced, the chip treatment is improved, the quality of the machined surface is remarkably improved, and the service life of the cutter is remarkably prolonged.

The invention discloses a multi-degree-of-freedom control method and system for a ground rail robot, a product and a medium, and relates to the field of control or adjustment systems. The method comprises the steps that characteristic quantities in carried object task data are extracted, and weight parameters, material parameters and position parameters of carried objects are obtained; matching track operation data of the ground track in a preset track database according to the weight parameters, the material parameters and the position parameters, extracting a target point in a track path of the ground track, calculating carrying path data of the robot on the ground track based on carrying parameters of the target point, and sending the carrying path data to the robot, and after the robot executes the carrying path data, real-time stress parameters and real-time position parameters of the robot are measured at the pickup point, the transition point and the placement point, the real-time stress parameters and the real-time position parameters are input into a preset evaluation model, track correction parameters and position correction parameters are obtained, and a correction instruction is sent to the ground track robot. By implementing the method, the carrying precision of the ground rail robot can be improved.

The invention provides an innovative vector propulsion system of a low-altitude airship, aims to provide accurate attitude adjustment and path planning capabilities for the low-altitude airship in a complex space environment, and consists of a plurality of key components, comprising an executing mechanism, a power driving module, a vector rotating mechanism, a propeller connecting mechanism, a detecting module and a propeller control system. The core characteristic of the airship is that adjusted vector thrust can be applied to any direction in a three-dimensional space so as to respond to real-time attitude adjustment and control requirements, so that accurate vertical rising, lateral flying and rotating operation of the airship in a limited space are realized; due to the unique design, the influence of the thrust direction change on the gravity center of the airship is reduced to the maximum extent, and therefore it is ensured that the low-altitude airship keeps the stable posture, and meanwhile fine control is achieved; the system is further integrated with a set of independent control system so as to guarantee accurate output of thrust angles, meanwhile, the overall structure is light and handy, the system particularly meets the requirements of low-altitude small airships, and the maneuverability and adaptability of the system in a narrow space are enhanced.

The invention relates to the technical field of mechanical arm motion planning and digital twinning, in particular to a mechanical arm multi-target trajectory planning method and system based on digital twinning, and aims to solve the problems that during large-scale rapid disordered feeding, a mechanical arm continuously grabs and transports materials with high strength, and the working efficiency is high. In order to solve the problems of large start-stop impact, easy shaking, reduced production operation efficiency, shortened service life and the like in the prior art, a multi-objective function of efficiency, impact and energy consumption is solved through LNSGA-II, and a seven-order B spline curve is utilized to optimize a joint track of the mechanical arm, so that angular displacement, angular velocity and angular acceleration motion curves of multiple joints of the mechanical arm are smoother and more continuous, a servo motor can be protected, and the mechanical arm is more stable in operation. And a digital twin platform is built through an MATLAB-AppeliaSim entity mechanical arm, the trajectory planning model is applied to an actual operation task of the mechanical arm, the working condition of the mechanical arm is monitored, and a factory task scene is coped with.

The invention relates to the technical field of welding, in particular to a welding method. According to the method provided by the invention, when the length of the wire harness is less than or equal to 500mm and the second end and the second terminal of the wire harness are welded, the first end of the wire harness is slightly influenced by vibration, and the tension value of the first terminal at the first end and the wire harness is reduced, so that after the welding parameters are adjusted, on one hand, the welding tension effect of the second end is reduced; on the other hand, vibration generated during welding is reduced, so that damage to the welding position of the first end is reduced, and tension values of the front end and the rear end can be balanced. In addition, the first end of the wire harness welded with the first terminal is clamped in the welding process, so that vibration generated when the second end of the wire harness is welded is counteracted by the clamping mechanism, propagation of the vibration to the first end is greatly reduced, and the influence on the first end is reduced.

The invention discloses a static scroll plate assembly, a scroll compressor and refrigeration equipment. Wherein the static scroll plate assembly comprises a plate body and a non-return structure, the plate body is provided with a compression channel and an air supply channel, and the air supply channel is provided with a first end communicated with the compression channel and a second end used for being connected with an enthalpy increasing pipe fitting; the non-return structure is arranged on the disc body, the non-return structure is provided with a movable valve element, and the valve element can move relative to the air supply channel so that the air supply channel can be communicated from the second end to the first end in a one-way mode; the movement direction of the valve element is not parallel to the axial direction of the air supply channel. According to the technical scheme, impact caused by the fact that gas in the compression cavity flows backwards into the gas supplementing and enthalpy increasing system can be prevented, and vibration and noise are reduced. And meanwhile, the movement direction of the valve element is not parallel to the axial direction of the air supply channel, so that the blocking force to the supplied air flow can be reduced, the flow of the supplied air flow is increased, and the air supply enthalpy increasing efficiency is improved.

The embodiment of the utility model provides a sensor damping structure and an inertial measurement unit, and relates to the technical field of sensor application. The sensor vibration reduction structure comprises a main control circuit board assembly, a sensor circuit board assembly, a vibration reduction module, a bottom cover and a box body. The vibration reduction module is in contact with the bottom cover and the box body, the sensor circuit board assembly is installed on the vibration reduction module, the main control circuit board assembly is installed on the box body, the box body is connected with the bottom cover, and the sensor circuit board assembly is in electrical communication connection with the main control circuit board assembly. Under the action of the vibration reduction module, the vibration conducted to the sensor circuit board assembly by the bottom cover or the box body is reduced, so that the influence of the vibration on the sensor is reduced.

The invention discloses a roadway stacking machine for stacking packaging boxes, and relates to the technical field of packaging box storage, the roadway stacking machine comprises a connecting plate, an electric sliding table I is fixedly mounted on the upper surface of the connecting plate, a storage iron frame is fixedly mounted on the upper surface of the connecting plate, and a sliding block I is mounted at the sliding end of the electric sliding table I; a second electric sliding table is fixedly connected to the upper surface of the first sliding block, a second sliding block is installed at the sliding end of the second electric sliding table, and a correcting assembly is arranged on the bearing platform, so that the effect of ensuring that the position of the packaging box can be adjusted in time when the packaging box is placed on the bearing platform is achieved; the packaging box is accurately located in the center of the bearing platform, in the operation process of the roadway stacking machine, the packaging box cannot deviate due to improper placement position, meanwhile, the situation that the packaging box cannot be placed on the storage iron frame due to inclination is avoided, and therefore the risk that the packaging box falls off is reduced, and the service life of the packaging box is prolonged. And the economic loss caused by falling of the packaging box is reduced.

The invention relates to the technical field of vibration and noise reduction of shock tube testing devices in the engineering anti-explosion industry, in particular to a gradient design type shock tube vibration and noise reduction device for engineering. Comprising a shock tube, an injection silencing module and a vibration and noise reduction module. The shock tube is connected with the injection silencing module; the vibration and noise reduction module is connected with the injection noise elimination module; the shock tube, the injection noise elimination module and the vibration and noise reduction module are coaxially arranged. According to the gradient design type shock tube vibration and noise reduction device for engineering, airflow and sound wave propagation paths are optimized through gradient design, so that noise and vibration generated in the working process of the shock tube are effectively reduced, and meanwhile the aerodynamic performance and operation efficiency of the shock tube are kept. The vibration and noise reduction module formed by periodically arranged functional units forms an acoustic black hole structure, compared with a traditional method, the acoustic black hole structure has better acoustic and elastic wave control physical characteristics, the propagation speed of shock waves can be effectively reduced, and reflection at the tail end of a boundary is reduced.

The present invention discloses a switch-on and switch-off drive mechanism for a high-voltage vacuum circuit breaker, which belongs to the technical field of circuit breakers, and comprises a box body and a vacuum chamber, wherein the vacuum chamber is mounted on the box body, and the vacuum chamber is arranged in multiple groups; a wiring port, wherein the wiring port is fixedly mounted on the side surface of the vacuum chamber, and each group of vacuum chambers is equipped with two groups of wiring ports, and the two groups of wiring ports are arranged up and down; a conductive plate, wherein the conductive plate is mounted inside the wiring port, and one end of the conductive plate extends into the vacuum chamber; and a first conductive column, wherein the upper end of the first conductive column is fixedly connected to a conductive plate of a group at the upper end. The present invention can realize that when closing or opening the switch, the initial speed is fast, and the speed becomes slower in the later stage. When performing the closing and opening operation, the initial speed is fast, and the rapid dynamic change can effectively reduce the generation of arcs, and the later speed becomes slower, which can avoid the problem that the excessive closing and opening speed causes excessive impact on the overall structure of the circuit breaker.

The invention relates to the technical field of axial flow pumps, in particular to a blade angle adjusting device for an axial flow pump and the axial flow pump. The blade angle adjusting device comprises an impeller hub, a flow guide cover is fixedly installed at the bottom of the impeller hub, and a fixing frame inserted into the impeller hub is fixed to the top of the inner wall of the flow guide cover; first mounting holes which are annularly distributed at equal intervals are formed in the circumference of the impeller hub, the inner walls of the first mounting holes are connected with steering shafts through sealing bearings, pump blades are fixedly mounted at one ends of the steering shafts, and steering gears are fixedly mounted at the other ends, extending into the impeller hub, of the steering shafts. According to the axial flow pump, the angles of the pump blades can be flexibly changed, the axial flow pump can operate efficiently under different flow and lift requirements, when the angles are adjusted to be large, the rotating speed of the smashing shaft and the rotating speed of the smashing cutter are synchronously increased, hard objects such as branches are sufficiently and rapidly smashed, and the service life of the smashing cutter is prolonged. And hard objects are prevented from flowing into the axial flow pump along with quickly circulating water to influence the safety performance of the pump body.

The invention relates to the field of spindle boxes, and discloses a shockproof high-precision spindle box structure which comprises a spindle box body. A buffering assembly is arranged at the bottom end of the main spindle box body, first buffering springs are evenly installed at the bottom end of the main spindle box body, spring seats are installed at the bottom ends of the first buffering springs, auxiliary assemblies are arranged at the top ends of the spring seats, and connecting round rods are fixedly installed between the spring seats. Sliding seats are slidably mounted on one sides of the spring seats, the sliding seats are connected through second buffer springs, and connecting rods are rotatably mounted at the top ends of the sliding seats; by arranging the auxiliary assembly, the damping protection effect of the device on the main spindle box body is enhanced, the springback speed of a first buffer spring is reduced, resetting of the main spindle box body is smoother and more stable, then the working precision of the main spindle box body is improved, and the quality of machined products is improved.

The utility model relates to a disc-type retainer for a tapered roller bearing, which comprises a whole ring-type disc-shaped body defined by a plurality of independent units, and the independent units are connected through rolling mechanisms; every two adjacent independent units are spliced to form a semi-open pocket, and a roller is correspondingly mounted in each pocket; the structural design is unique, the whole retainer is in a disc shape, and the whole retainer is formed by combining a plurality of independent units; a roller radial guide mode is adopted, certain radial support can be provided, the occupied space is small, the friction force of the retainer is reduced, the manufacturing difficulty is low, the overall weight of the retainer is reduced, the overall energy efficiency of the bearing is improved, the service life of the bearing is prolonged, and vibration and noise of the bearing in the using process are reduced. Meanwhile, the cost is reduced, so that a larger space is provided for material selection; and the design of the lubricating oil holes and the lubricating grooves creates good conditions for lubrication of the rollers, and improves the running stability of the bearing.

The invention relates to the technical field of steel structure machining, and discloses a steel structure grinding device which comprises a base, two supporting plates, a top plate, a fixing mechanism, a grinding device body, a laser detection device, an air blowing cooling device, a control panel and the like. The top of the second air cylinder is fixedly connected with the bottom of the sliding block, the grinding disc is fixedly connected with a rotating shaft of the grinding machine, the laser transmitter is fixedly connected with the mounting block on the front side, one end of the exhaust hose communicates with the cylinder body, and the other end of the exhaust hose penetrates through the mounting box to communicate with the blowing head. In the process of polishing the steel structure, cold air is blown to the upper surface of the steel structure and the polishing disc, the temperature of the steel structure and the polishing disc is reduced, the steel structure or the polishing disc is prevented from being damaged, and the blown cold air can also blow away chippings generated during polishing.

The utility model relates to a high-pressure cleaning machine, which comprises a casing, a pump unit accommodated in the casing and a spray rod system connected with the pump unit, the casing comprises a main body part for accommodating the pump unit, the pump unit comprises a pump body, a water inlet end positioned on one side of the pump body and a water outlet end positioned on the other side of the pump body, the spray rod system comprises a spray pipe connected to the water outlet end, a spray base installed on the main body part and a spray head installed on the spray base, the spray pipe penetrates through the spray base and the spray head, the high-pressure cleaning machine is provided with a vibration reduction system, and the vibration reduction system comprises a pair of first vibration reduction elements arranged between the pump body and the main body part and a second vibration reduction element arranged between the spray head and the spray pipe. The pair of first damping elements is symmetrically disposed about a body plane of the body portion, the body plane extending through the second damping element.

The invention relates to a bidirectional sealing check valve, which belongs to the technical field of valves, and comprises a check valve consisting of a valve seat, a valve pipe and a valve, the lower surface of the valve pipe is fixedly communicated with a drain pipe, and a drain hole communicated with the drain pipe is formed in the valve pipe; a sealing structure for sealing the drain hole is arranged in the valve pipe, and a connecting structure for linkage of the valve and the sealing structure is arranged in the valve pipe. A jacking structure used in cooperation with the sealing structure is arranged in the discharge pipe, and a communicating pipe is arranged between the valve seat and the jacking structure. According to the two-way sealing check valve, two-way sealing of the valve seat and the drain pipe is achieved through the valve and the sealing structure, and the water flow driving and connecting rod transmission mechanism modes are combined; the device has the advantages and advantages of efficient sealing and discharging, simplicity and convenience in operation, automation, strong adaptability, high reliability, convenience in maintenance, low cost, energy conservation, environmental protection, sustainability, improvement of production efficiency and economic benefits and the like.

The invention, which relates to the technical field of discharge detection, discloses a detection system for partial discharge of a transformer, comprising a bottom plate and a detection assembly. The detection positioning instrument body is installed on the upper side of the bottom plate, two wiring holes are formed in the front side of the detection positioning instrument body, wiring heads are installed in the wiring holes, the moving assembly is installed on the edge of the bottom plate, and the clamping assembly is installed on the upper side of the detection positioning instrument body. A fixing assembly is installed on the right side of the detection positioning instrument body, an angle adjusting assembly is installed on the rear side of the detection positioning instrument body, and the angle adjusting assembly is fixed to the upper side of the bottom plate; the detection assembly comprises fixing blocks, a rotating shaft, a winding barrel, a wiring cable, a connecting plug and a detection head, the two corresponding fixing blocks are fixed to the right side of the detection positioning instrument body, rotating holes are formed in the middles of the fixing blocks, carrying is convenient, and a circuit connector can be prevented from falling off during detection.

The present invention relates to the field of non-standard automation technology, in particular to an end cap rotary cutting assembly system and method for an injection-molded bottle body, comprising an injection molding machine, an injection molding transfer mechanism, a conveying mechanism, a first positioning mechanism, a first clamping mechanism, a rotary cutting mechanism, a second positioning mechanism, a second clamping mechanism and an end cap assembly mechanism, wherein the injection molding machine is used for bottle body injection molding, the injection molding transfer mechanism comprises an injection molding material picking component and an injection molding conveying component, the injection molding material picking component is used for grabbing the injection-molded bottle body on the injection molding machine and placing it on the injection molding conveying component, the injection molding conveying component is used for conveying the bottle body toward the conveying mechanism, the conveying mechanism is used for bottle body conveying, the first positioning mechanism is used for positioning the bottle body on the conveying mechanism, the first clamping mechanism is used for clamping the positioned bottle body and conveying it toward the rotary cutting mechanism, and the rotary cutting mechanism is used for ring cutting at the port on the bottle body; the present invention realizes full-chain automated operation from injection molding to end cap assembly through integrated and automated design.

The invention relates to a multifunctional multi-axis linkage numerical control internal and external circle and thread grinding machine which comprises a base, a grinding head and a grinding head. The N grinding spindles are symmetrically arranged on the machining table; the cross-shaped moving assembly is arranged on the base and located above the grinding main shaft; the lifting assembly is arranged on the cross-shaped moving assembly; the machining base is arranged on the cross-shaped moving assembly in a sliding mode and connected with the lifting assembly; the N machining spindles are symmetrically arranged on the machining base and correspond to the grinding spindles one to one. According to the multifunctional multi-shaft linkage numerical control internal and external circle and thread grinding machine, the grinding main shaft and the machining main shaft are symmetrically arranged to reduce vibration, and then the machining precision is improved. The N main shafts are symmetrically and uniformly distributed and can be vertically, horizontally and obliquely arranged. The overall rigidity is improved by 4 times, the amplitude is reduced by 4 times, the precision is improved by 16 times, and the machining rhythm speed is improved by 4 times. Different grinding wheel tools can be replaced so as to be widely applied to grinding machining of inner holes, outer circles and threads. The whole weight is light, the occupied area is small, and energy consumption is low.