22results about How to "Improved vibration stability" patented technology

The invention discloses a superconducting magnet device and a vector magnetic field loading method. The method comprises the following steps: step 1, determining the size and the direction of a vector magnetic field; the superconducting magnet device and the vector magnetic field loading method are provided. Under the same working magnetic field, the structure space is smaller, the magnetic field utilization rate is higher, the manufacturing cost can be remarkably reduced, meanwhile, the uniformity of the magnetic fields provided by the X coil and the Y coil is higher, meanwhile, the ultra-low vibration performance is achieved under the high magnetic field, the optical or magnetic measurement requirement with the very high vibration requirement can be met, and the application prospect is wide. The superconducting coil is cooled by using the flexible cold conduction belt, the vibration of the superconducting coil can be effectively reduced, the vibration stability of a magnetic field is improved, 0.5-1% of current is overshot when the magnetic field is loaded, and then the current is adjusted to be reduced to a target magnetic field, so that the magnetic field can be quickly stabilized, and the drift effect of the magnetic field is reduced.

The invention discloses a large-load rolling rotation derivative test device, and belongs to the technical field of aviation aerodynamic force wind tunnel special tests. The device comprises a supporting sleeve, a driving motor, a first coupler, a motion conversion assembly, a speed reducer, a second coupler, a vibration shaft, a model supporting rod and a balance, the model supporting rod is installed at the end of the supporting sleeve, the driving motor is fixedly installed in the supporting sleeve, and the driving motor is connected with the motion conversion assembly through the first coupler; the output end of the speed reducer is connected with one end of a vibration shaft through a second coupler, and the other end of the vibration shaft penetrates out of the model supporting rod to be connected with a balance. The objective of the invention is to solve the problem of non-standard sinusoidal motion caused by insufficient overall rigidity of the mechanism so as to improve the test precision of the rolling rotation derivative, change the direct drive of the eccentric cam into indirect drive, reduce the stress and loss of the cam, and prolong the service life of the mechanism.

The utility model discloses a self-locking spring, and belongs to the technical field of springs. Aiming at the problem that a spring in the prior art is not easy to self-lock, the self-locking spring disclosed by the utility model greatly breaks through the limitation of a traditional spring through collaborative innovation of a built-in hinge type locking mechanism and traction unlocking: firstly, a movable rod realizes full-angle unfolding by virtue of gravity or a manual push rod, so that the problem of locking failure in a non-vertical state is thoroughly solved; the movable rod can be folded in a linkage mode only by slightly pressing the spring and then lifting the pull wire, and unlocking operation is obviously simplified; thirdly, the steel multi-hinge structure keeps strong locking force in a vibration environment, and the vibration resistance stability is comprehensively improved; a locking mechanism is completely arranged in a spring cavity, the space utilization rate is increased, the whole device is lighter and more compact, and revolutionary technical support is provided for medical and vehicle-mounted dynamic scenes and the like.

The invention provides an upper flange for a rotary compressor, the rotary compressor and an air conditioner, the upper flange comprises a flange body, the flange body comprises a flange plate and an outer cylinder located on the upper end face of the flange plate, and the outer cylinder is provided with a first center through hole penetrating through the two ends of the outer cylinder in the axial direction of the flange plate; a first center through hole is formed in the outer cylinder, an inner cylinder is coaxially assembled in the first center through hole, the inner cylinder is provided with a second center through hole axially penetrating through the two ends of the inner cylinder, the second center through hole is used for being matched with a crankshaft to form a rotating friction pair, and a first oil return runner is formed between the inner circle wall face of the outer cylinder and the outer circle wall face of the inner cylinder. A spiral opening groove is formed in the hole wall face of the second center through hole, and a communicating hole is further formed in the inner barrel and communicates between the spiral opening groove and the first oil return flow channel. The first oil return flow channel is constructed on the first central through hole and the exposed surface of the inner cylinder body, so that the machining process of the groove is simplified, the machining difficulty is reduced, and the machining efficiency is improved.

The invention discloses a light-weight bionic spider station supporting structure, and relates to the technical field of railway passenger stations, the structure comprises a main body block, a main body column, a main body assembly, a buffer assembly and an auxiliary assembly, a main body framework and a connecting framework of the main body assembly are in a spider web shape and can absorb and disperse vibration force, vibration can be further buffered by a vibration absorber on the outer side, and the vibration force can be reduced. In the buffering assembly, a first movable rod at the bottom of a main body block and a first piston plate at the bottom of the main body block slide in an air exhaust groove of a main body column, air suction and release are achieved through a one-way valve and a spring to generate damping and assist in vibration reduction, and meanwhile air can be injected into a storage groove to be stored in an auxiliary assembly; water in an external water pipe can be pumped into the auxiliary box and sprayed out through the atomization spray head, the humidification function is achieved, in addition, when the pressure in the storage tank reaches a certain degree, high-pressure gas can be conveyed to the bottom of the auxiliary box, water is rapidly sprayed out at a time through the spray pipe and the atomization spray head, and air is cleaned.

This invention belongs to the field of pile foundation blasting safety protection technology. Addressing the problems of prominent blind spots and cumbersome disassembly and assembly in existing protective devices, it discloses a wellhead flyrock protection device and method for pile foundation blasting, including a mounting frame, a protective body, and a ground nail shell. The protective body is located in the middle of the mounting frame and is filled with a filling layer that hardens rapidly under the action of the blasting shock wave. It has a protective cavity, a transmission slide rod, a piston plate, and a slide rail. The inner wall of the protective cavity is fitted with the blasting material, and the outer wall is made of aramid fiber. The ground nail shell is detachably connected to the mounting frame. Its internal reinforcement structure, through a linkage assembly, drives a claw structure to embed into the ground, improving stability. The bottom baffle of the mounting frame is equipped with a steel mesh, and the outer side is hinged to a side plate. The side plate is linked to the transmission slide rod through an angle adaptive adjustment mechanism, allowing dynamic adjustment of the protection angle. This invention, through graded protection and deep reinforcement design, achieves interception of blasting flyrock under different working conditions, effectively ensuring the safety of pile foundation blasting operations.

The invention relates to a high-speed box opening device of a carton forming machine, the device comprises an upper box opening mechanism, a lower box suction mechanism and a material transfer track; the material transfer track is horizontally connected and installed on a frame, a flat box blank is arranged on the material transfer track, the upper box opening mechanism is located above the material transfer track, and the lower box suction mechanism is located below the material transfer track; the lower box suction mechanism is used to suck the bottom surface of the carton and perform traction, and the upper box opening mechanism is used to suck the top surface of the carton and perform a box opening operation to form a three-dimensional carton; the upper box opening mechanism comprises a motor mounting plate, a first motor, a connecting sleeve, a central sun sprocket, an output rotating shaft, a main planetary frame, a secondary planetary frame, a planetary sprocket, a tensioning wheel assembly, a chain, an output shaft, an air disk connecting piece and a first air suction disk; the planetary sprocket has the same size and specification as the central sun sprocket and is driven by a chain; the invention has the advantages of fast box opening speed, good box opening effect and small machine vibration.

The present application discloses a motor driving method and system, and an electronic device. The motor driving method includes: obtaining the current audio of the current game, obtaining the relative frame count of the current audio; obtaining the target identifier and the current trigger factor number of the current game interface; the target identifier represents the sign information of the control target in the current game interface; the current trigger factor number represents the number of factors that trigger vibration included in the current game interface; determining the number of vibrations according to the current trigger factor number; the number of vibrations is used to record the remaining number of motor vibrations in the current game; if the relative frame count and the number of vibrations meet the driving conditions, the motor vibration is driven according to the vibration waveform corresponding to the target identifier. It can effectively drive the motor to vibrate, prevent the occurrence of conditions that affect the vibration effect, such as leakage vibration, false vibration and / or uneven vibration, improve the vibration effect, and thus improve the user experience brought by the game product.

The utility model relates to geological physics simulation experiment equipment technical field, concretely relates to a sand box physics simulation experiment homogeneous quartz sand automatic sand screening device, the quartz sand automatic sand screening device, including gradient setting's screen group, mechanical vibration excitation device, vibration control module, a plurality of different mesh number's screen is arranged gradually from small to big according to mesh number, and is set gradually in turn mutual nesting, the top of outer frame has at least two clamping grooves, the bottom of outer frame has the clamping block, and the screen of upper and lower adjacent layers is connected into an integral structure through clamping groove and clamping block cooperation mutual nesting, mechanical vibration excitation device is connected with at least one screen in screen group, and vibration control module is used for controlling mechanical vibration excitation device and carries out vibration according to preset frequency and amplitude. The utility model discloses sand screening device has the advantages such as high screening efficiency, good quality, better satisfy the sand box physics simulation quartz sand preparation demand, reduce manpower, material resources requirement, make the experimental efficiency improve greatly.

A large-load roll rotation derivative test device belongs to the field of special test technology of aviation aerodynamic wind tunnel. The present invention includes a support sleeve, a drive motor, a first coupling, a motion conversion assembly, a reducer, a second coupling, a vibration shaft, a model support rod and a balance. The model support rod is installed at the end of the support sleeve, and the drive motor is fixedly installed in the support sleeve. The drive motor is connected to the motion conversion assembly through the first coupling, and the motion conversion assembly is connected to the input end of the reducer. The output end of the reducer is connected to one end of the vibration shaft through the second coupling, and the other end of the vibration shaft passes through the model support rod and is connected to the balance. The research and development purpose of the present invention is to solve the problem of non-standard sinusoidal motion caused by insufficient overall stiffness of the mechanism, thereby improving the test accuracy of the roll rotation derivative, changing the direct drive of the eccentric cam to indirect drive, reducing the force and loss of the cam, and improving the service life of the mechanism.

The invention relates to a high-voltage-class dry-type transformer for offshore wind power, which comprises a cable-stayed support frame and a multi-phase transformer body which is clamped and fixed through an upper clamping piece and a lower clamping piece, and is characterized in that the transformer body comprises an iron core, and a low-voltage coil, an insulating cylinder and a high-voltage coil group which are sequentially arranged on a core column of the iron core from inside to outside in a sleeving manner; wherein the high-voltage coil group comprises an upper high-voltage coil and a lower high-voltage coil which are connected through a coil connecting plate, a top support is arranged on the upper clamping piece, a supporting foot pad is arranged on the lower side of the lower clamping piece, the upper end of the cable-stayed supporting frame is connected with the corresponding top support, and the lower end of the cable-stayed supporting frame is connected with the corresponding supporting foot pad. Relative displacement between the upper high-voltage coil and the lower high-voltage coil can be avoided, and meanwhile, the transformer is more stable in installation and fixation and better in heat dissipation performance.

The present invention relates to a luminescent sanitary device comprising a printed circuit board (PCB) directly assembled onto its body. The light-emitting sanitary device comprises a body part containing a head part and a handle part; a printed circuit board (PCB) having a shape corresponding to the shape of the body portion and provided therein, equipped with a power button provided in the handle portion region, and a light source portion including a plurality of light sources, emitting light to the head region through the light guide body; the vibration motor is arranged at the upper end area of the handle part of the body part and is fixed on the PCB by welding; the bristle plate is arranged on the light source part of the head area of the PCB and is fixed on the light source part; and the bristle plate is provided with toothbrush bristles comprising at least one light guide body. The luminous sanitary device is characterized in that the PCB is directly assembled in the body, and the PCB with the vibration motor is directly assembled on the inner rib of the body part, so that due to the direct assembly of the PCB and the vibration motor, the noise is reduced, the noise is further reduced by stable vibration, the safety is improved, and the convenience is further enhanced.

The invention discloses a lightweight bionic spider station support structure, which relates to the technical field of railway passenger stations. The structure comprises a main block, a main column, a main assembly, a buffer assembly and an auxiliary assembly. The main frame and the connecting frame of the main assembly are in the shape of a spider web, which can absorb and disperse vibration force. The shock absorber on the outside can further buffer vibration. In the buffer assembly, a first movable rod at the bottom of the main block and a first piston plate at the bottom thereof slide in an air suction groove of the main column, and air is sucked in and released through a one-way valve and a spring to generate damping, thereby assisting vibration reduction. At the same time, air can be injected into a storage tank for storage. In the auxiliary assembly, water in an external water pipe can be sucked into an auxiliary box and sprayed out through an atomizing nozzle to achieve a humidification function. In addition, when the pressure in the storage tank reaches a certain level, the high-pressure gas can be transported to the bottom of the auxiliary box, so that the water is sprayed out quickly at one time through a nozzle and an atomizing nozzle to clean the air.

The utility model relates to a kind of multi-partition washing machines, including frame and the upper cylinder, lower cylinder being located in frame, small partition structure is also provided between upper cylinder and lower cylinder, the top of frame is provided with the first reinforcing plate connected with upper cylinder by first damping member, the bottom of frame is provided with the second reinforcing plate connected with lower cylinder by second damping member, small partition structure is drawer type cleaning assembly with top drop-off mouth, the middle part of frame is provided with third reinforcing plate, which can be used for installing drawer type cleaning assembly slide rail assembly and can be connected with upper cylinder and lower cylinder through damping structure respectively. Upper reinforcing structure is used for connecting damping member of upper cylinder, lower reinforcing structure is used for connecting damping member of lower cylinder, middle reinforcing structure is used for installing slide rail assembly of drawer type cleaning assembly while being used for connecting upper and lower cylinder reinforcing structure, so as to utilize the mounting structure of drawer type cleaning assembly to reinforce whole machine in the middle part of frame, improve the installation strength, vibration stability of whole machine.

The application belongs to the technical field of nuclear power plant reactor coolant pump driving equipment, and discloses a main pump motor of a nuclear power unit, which comprises an integrated base, a stator, a rotor, a base, an upper bearing assembly and a lower guide bearing; wherein the upper bearing assembly is installed on the upper end of the base, is an integrated bidirectional thrust bearing and an upper guide bearing, and is used for bearing bidirectional axial load; a flywheel is arranged below the rotor iron core and above the lower guide bearing, i.e. between the two side guide bearings; the base is a four-corner support integrated welded structure, and the shape is an unequal octagon. The application improves the maintenance accessibility by arranging the thrust bearing upward, reduces the gravity center of the motor and the vibration of the whole machine by arranging the flywheel downward and between the two side bearings, and improves the assembly precision and load envelope by the integrated base.

The invention belongs to the field of MEMS sensors, and particularly relates to a vibration coupling double-micro-cantilever plate MEMS viscosity sensor chip and a working method thereof.The chip comprises a silicon-based clamped support body, a clamped support body cavity is formed in the silicon-based clamped support body, a first micro-cantilever plate and a second micro-cantilever plate are arranged in the clamped support body cavity, and the free ends of the first micro-cantilever plate and the second micro-cantilever plate are oppositely arranged; a vibration coupling gap is formed between the free ends of the first micro-cantilever plate and the second micro-cantilever plate, and the length of the second micro-cantilever plate is smaller than that of the first micro-cantilever plate; a first piezoelectric driving electrode and a first piezoelectric vibration pickup electrode are symmetrically arranged on the first micro-cantilever plate in the width direction of the first micro-cantilever plate, and a second piezoelectric driving electrode and a second piezoelectric vibration pickup electrode are symmetrically arranged on the second micro-cantilever plate in the width direction of the second micro-cantilever plate. The first piezoelectric driving electrode, the first piezoelectric vibration pick-up electrode, the second piezoelectric driving electrode and the second piezoelectric vibration pick-up electrode are all connected with metal leads. The vibration coupling double-micro-cantilever slab MEMS viscosity sensor chip can remarkably improve the measurement performance such as fluid measurement precision and stability.

The AGV main driving wheel of the novel structure comprises a motor, the front side of the motor is connected with a transmission shaft, and a hub is fixedly installed on the front side of the transmission shaft; the mounting plate is fixedly mounted on the outer side of the motor, a suspension fixing plate is connected to the outer side of the mounting plate, a fixing block is fixedly mounted on the inner side of the suspension fixing plate, a limiting rod is connected to the middle side of the fixing block, a first spring is arranged at the upper end of the suspension fixing plate, and a moving rod is connected to the middle of the first spring in a penetrating mode; the outer side of the first spring is connected with a connecting cylinder, and the upper side of the connecting cylinder is connected with a replacement structure. And the connecting cylinder is fixedly installed on the outer side of the hub, and the middle side of the third spring is connected with a connecting rod in a penetrating mode. According to the AGV trolley main driving wheel of the novel structure, the suspension assembly can be conveniently detached, the vibration reduction and stabilization effect of the AGV trolley main driving wheel can be conveniently improved, and a spring in the suspension assembly can be conveniently replaced.

The invention discloses a sound production monomer and a sound production module, and relates to the technical field of sound energy conversion, the sound production monomer comprises a magnetic circuit system, a vibration system and an elastic support assembly, the magnetic circuit system forms an auxiliary magnetic gap and a main magnetic gap, and the main magnetic gap comprises a first magnetic gap and a second magnetic gap; the vibration system comprises a vibrating diaphragm, a voice coil assembly and a connecting assembly, the voice coil assembly comprises a first voice coil, a second voice coil and an auxiliary voice coil, the first voice coil is located in the first magnetic gap, the second voice coil is located in the second magnetic gap, the auxiliary voice coil is located in the auxiliary magnetic gap, and the first voice coil and the second voice coil are connected with the auxiliary voice coil through the connecting assembly. The current directions of the first voice coil and the second voice coil are opposite to the current direction of the auxiliary voice coil; the elastic supporting assembly is connected with the magnetic circuit system and the voice coil assembly, the magnetic circuit system is provided with an avoiding space corresponding to the elastic supporting assembly, the driving force directions of the first voice coil, the second voice coil and the auxiliary voice coil on the vibrating diaphragm are the same, and better performance improvement is achieved.

The application discloses a kind of highland barley threshing material separation cleaning device, belong to agricultural machinery technical field.The cleaning device includes frame and integrated on it, feeding and detection device, dust absorption and dust removal device, three-stage vibration sieve device, sieve box excitation device, automatic leveling device and automation control system.Feeding and detection device real-time detection material flow, form and moisture content;Three-stage vibration sieve device uses one-stage long waist type sieve, two-stage variable size sieve and three-stage circular sieve, screen size, vibration frequency and sieve plate inclination angle can be self-adaptive adjustment;Dust absorption and dust removal device has independently adjustable double air duct, carries out secondary airflow cleaning.The application is through compound cleaning mode and automation control, significantly improves the cleaning efficiency of highland barley threshing material and grain cleanliness, reduces loss rate, and has automatic leveling function, adapts to plateau uneven ground, realizes the full mechanization operation of highland barley cleaning.

The invention discloses a moving coil supporting and connecting mechanism and a high-frequency vibration testboard comprising the same. The moving coil supporting and connecting mechanism comprises a first supporting and connecting piece and a second supporting and connecting piece, the first supporting and connecting piece comprises a first connecting plate made of a carbon fiber material, the size of the first connecting plate in the circumferential direction of a vibration table top is d11, the size of the first connecting plate in the axial direction of the vibration table top is d12, and d11 is larger than d12; the second supporting connecting piece and the first supporting connecting piece are arranged on the outer side of the moving coil in a staggered mode, the second supporting connecting piece comprises a second connecting plate made of rubber, the size of the second connecting plate in the circumferential direction of the vibration table top is d21, the size of the second connecting plate in the axial direction of the vibration table top is d22, d21 is smaller than d22, and d11 is larger than d21. The vibration table has extremely high vibration stability during high-frequency vibration, and the harmonic distortion degree of the vibration table is also greatly reduced through tests.

This invention relates to the field of shock absorber piston rods, and more particularly to a carbon fiber reinforced hollow spiral rib automotive shock absorber piston rod. The shock absorber piston rod is assembled onto the vehicle body via a mounting component located at its bottom. Assembly mechanisms are provided at the corners of the mounting component. Each assembly mechanism includes a main screw, a slanted post, and a secondary screw. The main screw passes vertically through the mounting component to achieve a fixed assembly with the vehicle body. The slanted post passes obliquely through the main screw to lock it in place. The secondary screw passes through the slanted post to fix it in place. In this invention, the shock absorber piston rod effectively reduces vehicle vibration. The multi-stage locking assembly mechanism, consisting of the main screw, slanted post, and secondary screw, solves the problem of traditional bolts easily loosening under vibration, providing multiple anti-loosening guarantees for the main screw. This improves the vibration resistance stability of the connection point between the shock absorber piston rod and the vehicle body, thereby ensuring vehicle handling safety.