141 results about "Linear vibration" patented technology

The utility model provides a base damping device of a vacuum vibration press, which belongs to the technical field of damping and comprises a moving table and a damping component arranged at the top of the outer wall of the moving table, and the damping component comprises a damping seat, an auxiliary frame, a mounting frame, a damper, an angle frame, a limiting frame, a resistance reducing wheel, a supporting seat, a buffer spring and a limiting frame. The auxiliary frame is fixedly arranged at the corner of the bottom of the outer wall of the damping seat, and the limiting frame is embedded in the inner wall of the auxiliary frame. The damping assembly and a buffer spring form a rigid-flexible damping structure through a damper, high-frequency vibration can be absorbed at the same time, rapid energy consumption through damping can be achieved, low-frequency vibration can be elastically buffered through the spring, dynamic adjustment is achieved through a resistance reduction wheel, the resistance reduction wheel rolls in a limiting frame, impact force is dynamically dispersed in cooperation with a supporting base, stress concentration is avoided, and the service life of the damping assembly is prolonged. The rolling design of the resistance reduction wheel converts linear vibration into rotating kinetic energy, and direct damage of transverse impact to the structure is reduced.

The application discloses a full-automatic rubber band discharging structure and a working method thereof, relates to the technical field of discharging, and comprises a rotary screening device, a linear vibration device and a vibrating disc device. The linear vibration device comprises a linear vibrator arranged on a machine table and a vibrating seat mounted on the linear vibrator. Linear guide grooves are formed in the vibrating seat. The rotary screening device is arranged above the linear guide grooves and is in brushing cooperation with the upper end surface of the rubber band. The sliding friction between the rotary screening device and the rubber band is greater than the sliding friction between the linear guide grooves and the rubber band. The material channel comprises a first feeding part, a screening part and a second feeding part which are sequentially and mutually connected. The application preliminarily screens materials through the screening part, and the rotary screening device performs secondary screening, so that the finally conveyed rubber band better meets the production standard, the screening quality is improved, the overall production stability of the application is better, and the application has the advantages of reasonable structure design, convenient use, high production efficiency and the like.

The application discloses a material distribution assembly, which comprises a conveying seat, a sliding piece, a first connecting piece, a blocking piece and a first driving unit. A first conveying channel is formed in the conveying seat, and the first conveying channel is used for conveying materials. The sliding piece is arranged on the conveying seat in a sliding mode. The first connecting piece is connected with the sliding piece. One end of the blocking piece is arranged at an outlet of the first conveying channel, and the other end of the blocking piece is connected with the sliding piece through the first connecting piece. The first driving unit is arranged on the conveying seat and connected with the sliding piece, and is used for driving the sliding piece to slide on the conveying seat, so as to drive the blocking piece to open or close the outlet of the first conveying channel. The material distribution assembly realizes the function of outputting a certain amount of materials each time. The application also discloses a direct-vibration conveying line comprising the material distribution assembly and a feeding device comprising the direct-vibration conveying line.

High-speed rail is used for automatic pipe production line of insulating steel, the production line includes steel supply system, insulating pipe supply system, pipe system, heat shrinkage furnace system, the steel supply system includes stock bin frame, the steel distribution device and the steel distribution device are installed in turn after the stock bin frame, the insulating pipe supply system includes the vibration disc of insulating pipe sequencing, the vibration disc is set on the machine table, the outlet of vibration disc is connected with linear vibration guide, the pipe system includes pipe carrier, steel pushing device installed on the side of pipe carrier, insulating pipe positioning and shaping die set installed on the pipe carrier. The production line realizes the automation of heat shrink tube production.

The invention relates to a coaxial rotating eccentric vibrator. A hydraulic motor drives two groups of eccentric blocks capable of reversely rotating around the same axis to rotate, and inertia force generated by rotation of the eccentric blocks is synthesized to enable a rotating shaft to generate linear vibration in a certain radial direction. The device is composed of a hydraulic motor 1, a flange plate 2, a box body 3 and an internal excitation part. A shaft output spline hole 17 of the hydraulic motor 1 is connected with a shaft head spline of the rotating shaft 5, and the hydraulic motor 1 is fixed to the box body 3. The flange 2 is fixed at the bottom of the box 3. The tool can be installed on the flange plate 2 to form a vibration tool for use. The vibrator can also be installed on other machinery equipment through the flange plate 2 to be used as a vibration source. The machine is compact in structure, easy to manufacture, concentrated in inertia force and suitable for the field with the requirement for linear vibration of inertia.

The embodiment of the invention provides an optical axis stability control method and system based on linear acceleration feed-forward compensation, and the method comprises the steps: introducing a feed-forward compensation path based on a linear acceleration measurement value into a disturbance path from online disturbance to angular disturbance; the feedforward compensation path executes the following steps: acquiring a linear acceleration signal measured by a linear accelerometer arranged on the optoelectronic equipment in real time; multiplying the linear acceleration signal by a preset feed-forward compensation coefficient to generate a feed-forward compensation torque instruction; and the feedforward compensation torque instruction and a feedback torque instruction output by a servo control system speed ring controller are superposed to form a composite torque instruction, and a motor is driven to suppress angular disturbance generated by coupling of external line vibration through an equipment mechanical structure. According to the technical scheme, on the premise that an existing mechanical structure and a main feedback control framework are not changed, disturbance is actively predicted and counteracted by introducing a feed-forward compensation path, and the optical axis stability precision of the photoelectric equipment in a main vibration frequency band is improved.

The invention belongs to the related technical field of structural vibration control, and discloses a variable damper and equipment based on variable pitch thread transmission, the variable damper comprises a magnetic metal shell, and a center driving sliding disc, a variable pitch threaded rod and a peripheral eddy current disc which are respectively arranged in the metal shell, the variable pitch threaded rod is sleeved with the center driving sliding disc, and threaded connection is formed between the center driving sliding disc and the variable pitch threaded rod. The peripheral eddy current disc is connected to the central driving sliding disc; the metal shell can provide a magnetic field; and the thread spacing of the variable-pitch threaded rod is in nonlinear distribution. Forced linear vibration is converted into nonlinear rotation through the variable-pitch threaded rod, geometric amplification of the rotating speed and electromagnetic dissipation power is achieved under limit displacement by means of the thread pitch characteristic that the thread pitch is distributed in a nonlinear mode, powerful anti-top-rushing protection is provided, and the variable-damping capacity with the stroke self-adaption function is achieved.

According to the linear motor assembling equipment provided by the embodiment of the invention, the linear vibration motor is arranged on the bearing surface, and the multiple first positioning parts abut against the two sides of the motion unit. Therefore, a clamping pair formed by the third positioning surface and the fourth positioning surface can push one end of the spring piece to the inner wall of the shell in the first direction, so that laser welding can be conveniently carried out on the spring piece and the shell. And on the other hand, the thickness direction of the clamping piece is configured to be consistent with the second direction, so that the clamping piece can be conveniently inserted between the motion unit and the shell, and the motion unit is further fixed.

The lifting platform for the linear vibration friction welding machine comprises a base and a welding die, a lifting plate is arranged at the top of the base, a fixing frame of a U-shaped structure is fixedly connected to the bottom of the lifting plate, a second air cylinder is fixedly connected to the bottom of the base, and a piston rod of the second air cylinder penetrates through the base and is fixedly connected with the bottom of the fixing frame. The bottom of the fixing frame is fixedly connected with a first air cylinder, and the top end of a piston rod of the first air cylinder is fixedly connected with the bottom of the mounting plate. A movable plate is hinged to one side of the mounting plate, a plurality of fixed plates are fixedly connected to one sides of the mounting plate and the movable plate at equal intervals, and a plurality of balls are fixedly connected to the outer sides of the fixed plates at equal intervals. Through the structure, the movable plate extension structure can enable the mold to be placed and taken down on the side close to the welding machine door body, so that the replacement operation space of the welding mold is larger, the welding mold is convenient to take and place, the operation efficiency is higher, and the convenience and practicability of replacement of the welding mold are improved.

The utility model relates to a linear vibrating screen which comprises a working channel, a linear driving mechanism, a springback mechanism and a base. The linear driving mechanism is arranged on the base, the driving end of the linear driving mechanism is connected with the working channel through the connecting part, and the springback mechanism is connected with the base and the connecting part; the linear driving mechanism is used for driving the connecting part to drive the working channel to move on an oblique line track with a preset angle, when the linear driving mechanism drives the connecting part to move, the connecting part drives the springback mechanism to store energy, and then the springback mechanism drives the connecting part to move in the opposite direction when resetting. According to the linear vibrating screen, the rebound mechanism is arranged, the function of the linear vibrating screen can be achieved only by arranging the linear driving mechanism, when the linear driving mechanism drives the connecting part to move, energy can be stored for the rebound mechanism, the linear driving mechanism has the resetting tendency, and the connecting part is driven to move in the opposite direction in the resetting process; the effect that the working channel vibrates in a reciprocating mode in the inclined direction is achieved, the overall cost is reduced, and the fault rate is low.

The utility model relates to the technical field of vibration motors, and discloses a vertical linear vibration motor, which comprises a cylindrical shell with an opening at one end and a plate-shaped cover body, the shell and the cover body are buckled to form an accommodating space, the shell comprises a side wall, and the free end of the side wall is provided with a first notch; the side wall is vertical to the cover body; the cover body comprises a circular body, a supporting part extending from the body in parallel and an annular protruding part protruding from the inner surface, close to the periphery, of the body, the protruding part is provided with second notches corresponding to the first notches, the first notches are located on the outer sides of the second notches at intervals, the supporting part corresponds to the second notches, and the side wall is fixedly connected between the protruding part and the edge of the body. The maximum outer diameter of the side wall is equal to the outer diameter of the body, a gap is formed between the side wall and the convex part, and a first sealant part is coated in the gap. The vertical linear vibration motor is high in structural stability, good in sealing performance and good in vibration performance.

The invention discloses a motor bearing performance degradation state evaluation method and system, and relates to the technical field of bearing performance evaluation, and the method comprises the following steps: building a time-frequency response mapping model of a rolling body fatigue micro-crack region, and calculating the performance degradation state of a motor bearing according to a vibration signal, rotation speed fluctuation and load change of the motor bearing in the operation process; extracting an energy distribution curve of the micro-lag region, and constructing a multi-scale phase delay matrix according to the energy distribution curve; and constructing a local energy coupling identification network based on a phase delay matrix output by the time-frequency response mapping model. Accurate identification and early degradation prediction of motor bearing microcrack energy behaviors are realized through time-frequency mapping and a phase delay matrix, and self-healing adjustment and closed-loop control of an energy field are realized through a self-adaptive phase inversion and anti-lag compensation mechanism, so that nonlinear vibration instability is effectively inhibited; the running stability and the service life of the bearing are obviously improved.

A linear vibration motor, including: a housing, a stator in the housing, a vibrator, and an elastic connector suspending the vibrator in the housing. The stator includes a solenoid fixed to the housing and includes a weight having a through hole and a magnet assembly fixed to an inner wall of the weight, the elastic connector includes at least two plate-shaped elastic sheets arranged in parallel and a spacer arranged at two ends of two adjacent elastic sheets to separate the two adjacent elastic sheets, the linear vibration motor further includes a first soldering lug, and the elastic connector has an end connected to the weight and another end connected to the housing through the first soldering lug. The elastic connector has high rigidity, and the vibrator is not prone to flipping during motion, a noise ratio is reduced and a vibration state is more stable.

A multimodal hyperspectral vibrational sum-frequency generation (VSFG) platform and a method of tumor diagnosis are provided. The method employs the chemical-specific VSFG microscopy platform as a label-free imaging technique for tumor identification.

The invention discloses a linear vibration motor and electronic equipment, and relates to the technical field of vibration generators, the linear vibration motor comprises a shell, a stator assembly and a vibrator assembly, the stator assembly and the vibrator assembly are accommodated in the shell, the vibrator assembly is suspended in the shell, the vibrator assembly comprises a mass block and a magnetic circuit assembly, the stator assembly comprises a coil, an iron core and an electromagnetic damping piece, the stator assembly is at least partially located in the containing cavity of the mass block, the iron core comprises a main body part and two end parts arranged at the two ends of the main body part in the vibration direction of the vibrator assembly, the projection area of the two end parts in the vibration direction of the vibrator assembly is larger than the projection area of the main body part, and the coil is wound around the main body part and located between the two end parts. The side surface of the iron core facing the magnetic circuit assembly is provided with an electromagnetic damping member. Foam damping is replaced by electromagnetic damping, the time for designing foam is saved, the design efficiency is improved, meanwhile, compared with a traditional electromagnetic damping position scheme, the motor space is saved, the damping effect is improved, and the product competitiveness can be greatly improved.

This invention relates to the field of straw processing and manufacturing technology, specifically to a straw conveying device and straw processing and forming equipment. The straw conveying device includes a vibratory feeder, a guide rail assembly, a feeding assembly, and a first stopping assembly. The guide rail assembly includes two spaced-apart track plates that extend in a front-to-back direction and form a sliding groove extending in the same direction. The upper part of the track plate supports the straw capsule, and the sliding groove allows the straw to enter and slide. The vibratory feeder can drive the guide rail assembly to generate linear vibration. The feeding assembly includes a feeding base plate, two left and right feeding clamps slidably mounted on the feeding base plate, a clamp driving mechanism that can drive the two feeding clamps to move towards and away from each other, and a base plate driving mechanism that can drive the feeding base plate to move back and forth. The feeding assembly is used to clamp the straw capsule and drive it forward. The first stopping assembly is located on the side of the feeding assembly near the vibratory feeder and is used to stop the straw moving towards the feeding assembly.

A linear vibration generating apparatus includes a casing coupled to a lower cover so that a mounting space is formed inside the casing, a vibration body configured to vibrate in the mounting space in a first direction, a fixed body including a coil surrounded by the vibration body and including a yoke to which the coil is wound, and a pair of elastic bodies elastically supporting vibrations of the vibration body from between the casing and the vibration body. The vibration body includes a frame part which surrounds the fixed body and to which each of the pair of elastic bodies is connected, and includes a plurality of magnets mounted on an inner surface of the frame part facing the fixed body.

The invention discloses a self-energized nonlinear energy trap multidirectional damping device, relates to the technical field of structural vibration control, and aims to solve the problems that a traditional damping device is narrow in frequency range, depends on external energy, is inflexible in damping adjustment and is single in damping direction. The device comprises a sealing shell, a tumbler mass block, nine linear springs, a double-track system, a piezoelectric power generation system, an eddy current damping system and a control circuit. The core of the device is that broadband vibration energy is captured through nonlinear cooperation of the tumbler mass block and the hemispherical curved surface track, the broadband vibration energy is converted into electric energy through the piezoelectric power generation system and the control circuit to be self-powered, and the vibration energy is efficiently dissipated through an eddy current damping system, a mechanical switch adjustment magnetic field and track sliding friction. The device does not need an external power supply, adapts to multi-scene vibration suppression, realizes multi-directional vibration suppression through double-track cooperation, is high in vibration reduction efficiency and high in adaptability, breaks through the frequency limitation of a traditional linear vibration reduction device, can effectively capture broadband vibration energy, and does not need to be independently designed for a single frequency.

The invention relates to the technical field of electronic component processing, and discloses an electronic component turn-over device and a packaging line detection device and method adopting the electronic component turn-over device, integrated automatic operation of electronic component detection, turn-over, sorting and packaging is achieved, a material box is driven by a rotating table to sequentially pass through a testing assembly and a turn-over mechanism, and the automatic detection of the electronic component is achieved. The linkage of the first double-shaft moving arm, the second double-shaft moving arm, the linear vibration rail and the braiding machine is matched, manual work does not need to participate in the links of material box transferring, element transferring, sorting and the like, the operation efficiency of the whole process is greatly improved, meanwhile, the problem of element damage caused by manual operation is avoided, the product yield of electronic elements is effectively guaranteed, and the production cost is reduced. According to the turnover mechanism, the independent on-off communication valves are matched with the suction cups and the communication pipes which are in one-to-one correspondence, the adsorption state of each suction cup can be independently regulated and controlled, normal operation of other suction cups cannot be affected even if an individual suction cup fails in adsorption, and stability and continuity of batch turnover operation are guaranteed.

The utility model discloses a mould for foaming a vehicle seat, which comprises a base, a fixed mould base arranged on one side of the upper end of the base, a movable mould base arranged in the middle of the upper part of the base and capable of sliding left and right relative to the fixed mould base, and a driving device for driving the movable mould base to move left and right, a lower mold is arranged on the side, facing the fixed mold base, of the movable mold base, after the seat foaming cushion is formed, the upper mold making small-area contact with the foaming cushion moves away from the lower mold and moves out of the forming mold groove, then the hydraulic cylinder is started, and the push rod, the top mold plate and the foaming cushion are pushed to move rightwards through the piston rod; under the mutual cooperation of the spring and the linear vibration motor, the top mold plate is used for carrying out high-frequency elastic vibration pushing on the foaming cushion embedded in the forming mold groove, so that on one hand, the surface deformation and strain of the foaming cushion during hard taking-out can be prevented, and on the other hand, the foaming cushion can be continuously ejected out of the mold groove more linearly and smoothly.

The invention discloses linear vibration screening equipment for superfine material screening and grading, and relates to the technical field of screening equipment, the linear vibration screening equipment comprises a bottom plate, a supporting frame is fixedly connected above the bottom plate, a screening assembly is mounted in the supporting frame, a collecting pool is fixedly connected above the bottom plate and below the screening assembly, and a spraying assembly is mounted on the front side above the bottom plate; the screening assembly comprises a screening box, a plurality of first fixing strips are fixedly connected to the upper portion of the interior of the screening box, a first screening plate is detachably connected between every two adjacent first fixing strips through bolts, a plurality of second fixing strips are fixedly connected to the lower portion of the screening box, and a second screening plate is detachably connected between every two adjacent second fixing strips through bolts. The screening assembly has the advantages that the first screening plate and the second screening plate are detachably connected between the adjacent fixing strips through the bolts respectively, the damaged screening plates can be independently replaced or maintained only by screwing off the corresponding bolts during maintenance, the whole screening assembly does not need to be disassembled, and the maintenance time is greatly shortened.

A linear vibration motor, including a housing, a weight suspended in the housing, at least two driving assemblies driving the weight to horizontally vibrate, and an elastic connector elastically supporting the weight. The weight includes an inner wall enclosing to form a through hole, each driving assembly includes a solenoid fixed to the housing and a magnet assembly fixed to the inner wall, the magnet assembly includes first magnets arranged at two sides of the solenoid along a vibrating direction of the weight, the first magnets are magnetized along a direction perpendicular to the vibrating direction, the first magnets at two sides of the solenoid have poles of a same polarity opposite to each other, each first magnet includes a common magnet located between two adjacent solenoids and shared by two adjacent driving assemblies. A driving force of the linear vibration motor is significantly improved.

This application relates to a method, apparatus, system, electronic device, storage medium, and program product for generating a drive signal. The method includes: driving a linear vibration motor to vibrate based on a first drive signal generated by a compensation filter, and acquiring the actual vibration response signal generated by the linear vibration motor during vibration; determining the vibration error of the linear vibration motor based on the actual vibration response signal and a target vibration response signal; adjusting the parameters of the compensation filter using an adaptive algorithm based on the vibration error and a transmission channel estimation model of the drive signal; and generating a second drive signal using the parameter-adjusted compensation filter to drive the linear vibration motor based on the second drive signal. This method can improve the reliability of motor vibration.

The application discloses a kind of urban renewal building waste cleaning equipment and its use method, it is related to garbage disposal technical field, its technical scheme includes conveying tank, filter plate is fixedly connected in conveying tank upper portion, vibration transmission shell is arranged in conveying tank bottom, first motor is arranged in vibration transmission shell upper portion, first motor output end is provided with first transmission belt, first transmission belt is driven connection with first transmission wheel, first transmission wheel is fixedly connected with eccentric wheel, eccentric wheel side is rotatably connected with vibrating rod, in the application, eccentric wheel rotation can drive conveying tank reciprocating movement, further drive filter plate vibration, filter plate does oblique reciprocating linear vibration, material on its upper portion relies on inertia, slip and throwing effect generated by vibration, along inclined groove face continuously moves at uniform speed forward, realizes continuous feeding, and vibration can also screen fine gravel and dust small particles in building waste in this feeding process, thereby avoid dust flying in subsequent garbage cleaning process.

A linear vibration motor includes a housing, a vibration assembly, and a stator assembly. The vibration assembly includes a mass block, a magnet fixed to the mass block, and an elastic member that drives the mass block to move back and forth. The elastic member includes a first fixation portion, a first elastic portion, a second fixation portion, a second elastic portion, and a third fixation portion. Along a first central axis of the first fixation portion, the first elastic portion and the second elastic portion are located on two sides of the first central axis and are asymmetric. The linear vibration motor has good reliability.

The utility model belongs to positioning pin feeding technical field, especially for a kind of positioning pin feeding mechanism, including first rack, vibration disc feeder and linear vibration conveyor are respectively installed on the first rack, the horizontal feeding track on the linear vibration conveyor is communicated with vibration disc feeder discharge end, further include the second rack located in linear vibration conveyor side away from vibration disc feeder, the second rack top is firmly connected with rotary air cylinder, rotary air cylinder output end is fixed with turnover seat;The utility model adopts mechanical push to replace pneumatic blowing material, solves the problem of material blocking and blowing material not in place, effectively guarantees the success rate of feeding, improves the reliability of feeding mechanism;Cancel traditional polyurethane material pipe, adopt rigid pusher, wear rate has been effectively reduced, prolongs maintenance cycle, with it prolongs service life;The rotary air cylinder, turnover seat and proximity switch set ensure the posture of positioning pin, ensure its vertical state enters material taking station.

This utility model relates to the field of gypsum board production technology, and in particular to a special fiberglass addition device for paper-faced gypsum board. It includes a sieve hopper for adding fiberglass material, with a stepped section inside the sieve hopper. Two feeding components are installed within the stepped section, and these components are used to add fiberglass material by tilting and oscillating. By setting two feeding components and a cam between them, when the cam is driven to rotate by a motor, the irregular contour of the cam applies a periodic and asymmetrical force to the feeding components on both sides, causing the two feeding components to tilt and oscillate within the stepped section, rather than undergoing traditional linear vibration. Due to the eccentric characteristics or specific contour design of the cam, the oscillation amplitude and frequency dynamically change, thereby breaking the static accumulation mode of the fiber material on the sieve and solving the problem of uneven addition of fiberglass material in existing addition devices, thus achieving uniform addition of fiberglass material.

A linear vibration motor includes a shell, a vibration unit, a driving unit driving the vibration unit to vibrate, an insulating layer attached to the shell, and a flexible printed circuit board electrically connected with the driving unit. The vibration unit includes a magnet component. The driving unit is spaced apart from and directly opposite to the vibration unit, the driving unit includes a coil both fixed with the shell and the flexible printed circuit board by glue, the coil is electrically connected to the flexible printed circuit via a coil wire extending from the coil, the insulating layer is sandwiched between the coil wire and the shell. Compared with the related art, the linear vibration motor disclosed by the present disclosure could solve the phenomenon of poor insulation between the coil and the shell caused by the coil wire coming into direct contact with the shell.

This invention discloses a capacitor cover plate feeding and inspection device and method, including a frame, on which a feeding conveyor mechanism, an inspection mechanism, a handling mechanism, and a sorting and unloading mechanism are sequentially assembled. The feeding conveyor mechanism feeds the capacitor cover plate using linear vibration. The inspection mechanism is connected to the discharge end of the feeding conveyor mechanism and has seven equidistant inspection stations. Each inspection station is equipped with a corresponding angle vision inspection camera and light source. The handling mechanism sequentially transports the products to be inspected to each inspection station. The sorting and unloading mechanism receives the inspected products and sorts and collects them. Through the above method, this invention can provide rapid and orderly feeding, eliminate blind spots in inspection, and significantly improve the inspection accuracy, stability, and automated sorting capability of capacitor cover plates by using belt gap support and air blowing for sorting and unloading.