25results about How to "Avoid resonance" patented technology

This application belongs to the field of semiconductor processing technology, specifically relating to a backlight reflective layer printing device and its application. This application effectively controls the vibration generated during the printing process by optimizing the mechanical structure and position design of the frame, support plate device, and multi-axis spindle, reducing the deviation between the actual operating path and the planned path of the piezoelectric jet valve. This significantly improves the stability of the piezoelectric jet valve operation and the printing accuracy. Furthermore, this application, by setting up a micro-adjustment device, a positioning system, an inkjet calibration system, and a needle alignment device, and utilizing their coordinated relationship, can precisely correct printing parameters such as the jetting position or jetting volume of the piezoelectric jet valve. Therefore, based on the aforementioned stable printer body structure, the coating quality of the backlight reflective layer obtained by piezoelectric jet printing will be further improved. Thus, the backlight reflective layer prepared using this invention has better thickness uniformity and a better reflective effect.

The present invention discloses a liftable rubber bearing with an air spring, belonging to the technical field of bridge shock absorption. It includes an upper pier and a lower pier arranged oppositely, and the upper pier and the lower pier are connected by support columns. The support columns include connecting cylinders, rubber bonding blocks and a number of air elastic columns. The connecting cylinder is provided with a number of uniformly distributed air elastic columns penetrating along its circumferential direction. The air elastic columns can extend or shorten along the axis direction of the support column, and the connecting cylinder is filled with the rubber bonding blocks. By arranging a number of air elastic columns that can expand and contract along the axis direction of the support column in the circumferential direction of the support column, using the elastic characteristics of the air elastic columns, as the vibration load of the rubber bearing increases, the bearing capacity of the rubber bearing increases, and the air elastic columns can suppress the vibration amplitude and avoid resonance. When the impact load increases, the stiffness also becomes larger, ensuring a good vibration isolation effect.

This application discloses a method for calculating the vibration isolation of ship vibration isolation devices based on isolator type spectrum data, relating to the field of ship vibration isolation design. The method includes: acquiring the type spectrum data and impedance test data of the target isolator; determining the stiffness and damping parameters of the target isolator based on the type spectrum data and impedance test data; constructing a finite element model of the ship vibration isolation device; inputting the stiffness and damping parameters of the target isolator into the finite element model for calculation, and obtaining the vibration isolation calculation results of the target isolator. This method can efficiently utilize isolator type spectrum data to conduct vibration isolation calculation and evaluation of ship vibration isolation devices during the ship design phase, avoiding resonance between the natural frequency of the vibration isolation device and the excitation frequency of the equipment, and improving the vibration isolation effect.

This utility model relates to the field of vibratory feeder technology and discloses a vibratory feeder for a flow regulator, including a base, a sliding frame slidably connected inside the base, a supporting shell fixedly connected to the top of the sliding frame, a sliding rod slidably connected inside the supporting shell, and a vibratory feeder fixedly connected to the top of the sliding rod. This utility model utilizes the linear displacement characteristics of the threaded rod to precisely control the position of the moving block, thereby flexibly adjusting the rotation radius of the connecting column. This design allows the vibration amplitude to be adjusted in real time according to material characteristics such as weight, surface friction coefficient, or flow requirements, enhancing the equipment's adaptability to different working conditions. The threaded connection structure avoids the risk of slippage or jamming of the moving block, while the meshing of the first bevel gear with the drive motor transmits high torque, ensuring smooth and controllable changes in vibration amplitude during adjustment, and preventing material spillage or equipment resonance caused by sudden changes.

The utility model discloses a kind of high-efficiency vacuumizing equipment, belong to vacuumizing equipment technical field, including fuselage, and four dampers for anti-shock protection are arranged below fuselage, the bottom end of four dampers is connected with mounting seat, the right side of fuselage is equipped with back cover, the left side of fuselage is equipped with front cover, and the top of front cover is provided with two air inlet and outlet seats, plug is installed in the inside of two air inlet and outlet seats and penetrates, the top of plug is connected with pipeline, the bottom of fuselage is rotatably installed with two support rods, and the bottom end of two support rods is rotatably connected with moving block. The high-efficiency vacuumizing equipment is provided with damper, mounting seat is connected with four dampers at the bottom of fuselage, the buffering protection performance of fuselage itself can be increased by four dampers, mechanical wear is reduced, key components are protected, resonance between fuselage and pipeline due to rigid connection is avoided, and the service life of vacuumizing equipment is improved.

This application discloses an exhaust assembly and a vehicle for a fuel cell vehicle. The exhaust assembly includes an exhaust pipe, a muffler, and a damping pipe. The exhaust pipe is adapted to be installed on the vehicle body. One end of the exhaust pipe has an outlet end, and the other end has an inlet end. A muffler section is formed in the exhaust pipe. The muffler is disposed on the exhaust pipe and on the outer periphery of the muffler section, communicating with the internal cavity of the muffler section. The damping pipe is connected to the exhaust pipe and is disposed near the inlet end of the exhaust pipe, and / or at the junction of the exhaust pipe and the muffler section. At least a portion of the damping pipe is constructed as a flexible element or a flexible unit covering the exhaust pipe is disposed inside the damping pipe, which can improve the muffler and vibration reduction capabilities and reduce vehicle noise.

The air conditioner comprises an air inlet cavity and an air outlet cavity, the air inlet cavity comprises an air inlet, the air outlet cavity comprises a first air outlet, the air inlet and the first air outlet are located on the same side (for example, the lower side) of the air conditioner, and the first air outlet is located at a position of the air outlet cavity away from the air inlet cavity, and a heat exchanger is arranged in the air outlet cavity; in the arrangement direction of the air inlet cavity and the air outlet cavity, the distance between the first edge of the heat exchanger and the second edge of the air inlet cavity is recorded as a first size, the size of the air outlet cavity is recorded as a second size, the ratio of the first size to the second size is greater than or equal to 0.10 and less than or equal to 0.20, and the ratio of the size of the first air outlet to the second size is greater than or equal to 0.20 and less than or equal to 0.32, so that the relationship among the first size, the second size and the size of the first air outlet can be better balanced, thereby realizing a more reasonable space layout, making the size of the heat exchanger more optimal, and better improving the heat exchange effect of the entire air conditioner.

This utility model discloses a special fixture for an ultrasonic fully automatic hot melt welding machine, including a base. A support platform is slidably mounted on the upper surface of the base. A first mounting plate is fixedly mounted on one side of the upper surface of the support platform, and a second mounting plate is fixedly mounted on the other side. A sleeve is fixedly mounted on the first mounting plate, and a telescopic rod is slidably mounted inside the sleeve. A cylinder is fixedly mounted on one side of the second mounting plate. Clamping components are fixedly mounted on both the output end of the cylinder and one end of the telescopic rod. A pressure plate is slidably mounted on the opposite side of the clamping components. Two symmetrically arranged S-shaped clamping plates are slidably mounted on the inner surface of the pressure plate. Through the clamping blocks, pressure plates, clamping plates, second spring, first spring, and telescopic rod, the workpiece can be vibration damped during welding, preventing vibration energy from being transmitted to adjacent components, causing resonance or energy loss, resulting in uneven welding pressure distribution. At the same time, it avoids micro-displacement caused by high-frequency vibration of thin-walled workpieces, greatly improving welding quality.

The application provides a kind of stator core and motor.The stator core includes: first punching unit, the first punching unit includes first tooth part and first yoke part, one connecting joint is formed at the two ends of the first yoke part respectively, and the first punching unit is a symmetrical structure about the center line of the first tooth part;Second punching unit, the second punching unit includes second tooth part and second yoke part, and the second punching unit is a symmetrical structure about the center line of the second tooth part;Multiple first punching units and second punching units are arranged, multiple first punching units and second punching units are staggered and stacked, and two connecting joints axially adjacent can be rotatably connected to form a chain structure, and the chain structure is connected at the head to form the stator core.The application can reduce resonance and noise problems when the motor is running.

The present disclosure relates to a hanger for hanging a first drum and a second drum of a laundry treating apparatus, a side portion of the hanger including a connection portion for connection with a cabinet of the laundry treating apparatus, the connection portion having a support side for abutment with the cabinet, the support side having a length of 260mm or more to 300mm or less. The hanger can reduce or even avoid resonance of the hanger with the drum.

The utility model relates to the technical field of landing gear, concretely relates to a landing gear damping mechanism. It includes stand, crossbeam, wheel frame and sets up the damping component between stand and crossbeam, and the damping component is constituted by outer tube, piston rod, piston head, honeycomb aluminium energy absorption module group and disc spring bag etc. Honeycomb aluminium energy absorption module group is at least two layers along the axial direction and is equipped with deformation joint between layers, and honeycomb aluminium energy absorption module group, disc spring bag and piston rod are arranged in outer tube from top to bottom, and the conical force transmission rod of piston rod top inserts the central hole of honeycomb aluminium energy absorption module group and forms the conical surface cooperation. The landing gear adopts the "hydraulic damping-honeycomb aluminium-disc spring" compound damping structure, and through honeycomb aluminium graded energy absorption, disc spring nonlinear elasticity and friction damping, hydraulic damping medium energy dissipation, effectively solve the problem of traditional landing gear energy absorption efficiency low, high frequency vibration attenuation deficiency, heavy load impact load concentration etc., and is suitable for high frequency impact and concentrated load working condition, and the damping effect is good.

This utility model belongs to the field of machining fixture technology, and particularly relates to a positioning device for drilling and milling. It includes a base plate, a first motor mounted on top of the base plate via a shock-absorbing plate, a rotating seat on one side of the machine platform, inner bearings symmetrically arranged on the inner wall of the rotating seat, a rotating column rotatably mounted on the inner bearings, a drive shaft at one end of the rotating column, the drive shaft being connected to the output end of the first motor via a coupling, a locking assembly on the rotating column, linear guide rails symmetrically arranged above the shock-absorbing plate, a telescopic tube mounted above the linear guide rails via a slider, a clamping seat above the telescopic tube, and a lifting mechanism mounted above the linear guide rails via a movable seat. The locking assembly is slidably mounted on the lifting mechanism. This utility model allows for convenient observation and processing of rods, raising one end of the rod to a suitable position, providing excellent clamping and positioning, and enabling real-time correction of the workpiece angle during processing, resulting in more convenient and intuitive operation.

The utility model discloses a kind of washing and draining integrated pump structures of feeding bottle cleaning machine, including cup body, water inlet is equipped on it, first water outlet pipe and second water outlet pipe;Drain pump, it is communicated with the first water outlet pipe;Washing pump, it includes the water connection pipe communicated with the second water outlet pipe;Connecting hose, its two ends are respectively sleeved on the second water outlet pipe and the water connection pipe, to connect and communicate two. The utility model provides a kind of washing and draining integrated pump structures of feeding bottle cleaning machine, by utilizing connecting hose, while guaranteeing water, reduce the vibration of washing pump conduction to cup body, to reduce noise, avoid the case of resonance.

The utility model provides a kind of mirror rotating laser thinning equipment, comprising: feeding conveying line;Discharging conveying line;Laser processing component;Laser processing component includes laser, first reflector being set along laser beam emission direction, diaphragm, second reflector, beam expander, laser beam shaper, dynamic mirror rotating, field lens;First transfer component, first transfer component is located between first transfer station and second transfer station;Second transfer component.The utility model degree of automation is high, work efficiency is high, laser thinning effect is good, effectively avoid the deformation problem and resonance problem caused by thermal expansion of battery piece in processing process.

This invention discloses an outdoor cabinet structure suitable for high-vibration environments, comprising: a composite cabinet, including an outer shell and an inner shell, the inner shell being a frame structure; shock-absorbing cotton being disposed between the outer shell and the inner shell, the shock-absorbing cotton filling the frame gaps of the inner shell and being compressed and sandwiched between the inner shell and the outer shell; the inner shell and the outer shell being fixedly connected by fasteners passing through the shock-absorbing cotton; and a shock-absorbing chassis, connected between the composite cabinet and the mounting platform, having adjustable mounting shock-absorbing support columns, and the adjustable mounting shock-absorbing support columns and... The shock-absorbing chassis is threaded and height-adjustable, with shock-absorbing pads at its lower end; L-shaped feet are mounted on the shock-absorbing chassis and have waist-shaped adjustment holes, allowing adjustable shock-absorbing support columns to connect to the L-shaped feet via the waist-shaped adjustment holes and adjust their horizontal position along the waist-shaped adjustment holes; a disc damper includes a housing and a rotating shaft, with the housing fixedly connected to the shock-absorbing chassis and the rotating shaft connected to a fixed shaft at the bottom of the composite cabinet, generating a damping torque opposite to the direction of rotation when the rotating shaft rotates within the housing.

This utility model relates to the field of anti-resonance noise reduction motor stator technology, and particularly to an anti-resonance noise reduction motor stator, solving the problem in the prior art where changes in the gap between the stator and the magnetic mechanism cause structural instability, vibration, and resonance-induced noise. The anti-resonance noise reduction motor stator includes a housing, a stator assembly inside the housing, an outer sleeve inside the stator assembly, a magnetic layer inside the outer sleeve, a buffer layer between the outer sleeve and the magnetic layer, a rotating shaft inside the magnetic layer, a protruding ring fixedly connected inside the housing, and a receiving groove at the inner bottom of the housing, with several vibration damping blocks fixedly connected inside the receiving groove. This utility model ensures that the gap between the stator assembly and the outer sleeve remains constant, thereby guaranteeing the stability of the stator assembly, preventing resonance with external equipment, and preventing vibration from affecting the use of the motor stator during operation while also reducing noise.

The utility model relates to the technical field of gas turbine power generation, in particular to gas turbine combined cycle power generation low-noise emission equipment which comprises a sound absorption box body, a box door is hinged to one side of the sound absorption box body, and through holes are formed in the two faces of the sound absorption box body respectively. The silencing box body is arranged in the sound absorption box body, an air inlet is formed in one side of the silencing box body, an air outlet is formed in the other side of the silencing box body, and the air inlet and the air outlet are matched with the through holes in the two faces of the sound absorption box body respectively. Compared with the prior art, by arranging the silencing box body, the multistage serially-connected silencing cavities and the complex airflow path, stage-by-stage attenuation, disturbance and dissipation of sound waves are effectively achieved, linear propagation and high-frequency impact of noise are avoided, the noise reduction efficiency is improved, and the noise pollution risk of the system is reduced.

The utility model belongs to the technical field of waveguides, and discloses a millimeter wave waveguide phase shifter, which comprises a waveguide body, a phase shifting metal sheet and a driving piece, the waveguide body is provided with a waveguide cavity extending in a first direction, the waveguide body is further provided with an installation cavity, the installation cavity is located on one side of the waveguide cavity, and the installation cavity is communicated with the waveguide cavity; two ends of the phase shift metal sheet are fixed in the mounting cavity, and the phase shift metal sheet has a deformation degree of freedom; and the driving part extends into the mounting cavity from the outside of the waveguide body to abut against the middle part of the phase-shifting metal sheet, the driving part acts along a second direction to drive the phase-shifting metal sheet to deform, and the second direction is perpendicular to the first direction. The antenna has the advantages of being simple in structure, small in size, convenient to process and wide in bandwidth.

The application discloses a kind of active noise cancellation device for ventilation duct, including ventilation duct and installation plate being arranged on ventilation duct, the ventilation duct includes first pipe and second pipe, the opposite side of the outer surface of first pipe and second pipe is all welded and fixed with butt joint frame, the both sides of installation plate are all penetrated and slidably installed with first L-shaped positioning frame, and the application relates to noise control technical field.The active noise cancellation device for ventilation duct provides the abutment of the abutment of two butt joint frames with the setting of two first L-shaped positioning frames, first rubber sleeve, first butt joint groove, installation plate and first fastening bolt, and provides fixing condition for detection box, to ensure that active noise eliminator is effectively used in ventilation duct, and cooperate with the setting of telescopic air cylinder, noise reduction frame and cover plate, when ventilation duct is not used, active noise eliminator can be isolated and protected by cover plate, to avoid the influence of dust on active noise eliminator.

The utility model discloses a kind of six-way rope big square bundle bundling machine gearboxes, it is related to the technical field of agricultural machinery, the gearbox includes box body assembly, box cover system, transmission shaft system, gear set, bearing system, positioning structure, sealing assembly, connecting piece, auxiliary structure and elastic stopper. Among them, transmission shaft system adopts three-stage speed change design, realizes power efficient transmission by gear engagement;Bearing system cooperates with positioning structure and elastic stopper, solve the problem of multi-shaft system collaborative support, avoid shaft system resonance when high-speed operation;Sealing assembly constructs dynamic sealing, static sealing and the triple protection system of auxiliary sealing, adapt to high dust environment;Auxiliary structure integrates monitoring, maintenance and protection function, greatly reduce maintenance complexity.The utility model significantly improves transmission efficiency, prolongs bearing service life, enhances operation reliability, applicable to six-way rope big square bundle bundling machine under complex working condition Long-term stable operation.

The invention discloses a light-weight rolloff tire membrane which comprises a tire membrane body composed of a light-weight base, an anti-torsion truss and a molded surface supporting frame, the light-weight base comprises a center hub and radial branch supporting columns, and the anti-torsion truss supports the molded surface supporting frame by arranging first-stage supporting columns, inter-column reinforcing ribs and second-stage supporting columns at the tail ends of the radial branch supporting columns. The angles of the first-stage supporting columns and the second-stage supporting columns coincide or are close to the edge rolling resultant force vector direction, the annular reinforcing ribs, the inter-column reinforcing ribs and the second-stage supporting columns are selectively arranged according to load distribution, dynamic rigidity and function avoiding requirements, and a multi-stage reinforcing and tuning structure of the edge rolling tire film is formed, so that great weight reduction is achieved, and the edge rolling effect is improved. While the switching time of the rolloff tire membrane is shortened and the energy consumption is reduced, the rigidity of the rolloff tire membrane can be ensured through the flexible arrangement of the multi-stage reinforcing and tuning structure, the processing resonance is effectively inhibited, and the rolloff precision is ensured not to be influenced.

The utility model discloses a kind of angle-adjustable and wind-resistant damping flexible photovoltaic support, including photovoltaic board, support, steel strand and damping mechanism;The steel strand is connected with support, forms well-shaped support frame;The photovoltaic board is installed at the top of well-shaped support frame;The damping mechanism includes damping assembly, connecting assembly and angle adjusting assembly;The top of damping assembly is fixedly connected in the middle of steel strand, bottom and connecting assembly are rotatablely hinged together;The angle adjusting assembly includes fixed part, and fixedly installed with the regulator matched with connecting assembly on fixed part.The utility model damping mechanism and angle adjusting assembly cooperate, solve the problem that existing flexible photovoltaic support cannot adjust angle and wind-resistant damping performance is weak;Photovoltaic board can be adjusted according to the position change of sun Angle, to optimize light energy absorption efficiency, simultaneously, by the connection of damping assembly and steel strand, vibration caused by external factor is effectively dispersed and reduced, and the stability of entire system is improved.

The application relates to the technical field of household appliances and discloses a pipeline system which comprises a refrigerant pipe, a fixed adhesive block, an adhesive block adjusting mechanism, a vibration sensor, a compressor frequency determining module and a controller assembly. The controller assembly is connected with the adhesive block adjusting mechanism, the vibration sensor and the compressor frequency determining module, and is used for controlling the adhesive block adjusting mechanism to adjust the hardness of the fixed adhesive block according to the vibration frequency of the pipeline system detected by the vibration sensor and the compressor operating frequency obtained by the compressor frequency determining module. The hardness of the fixed adhesive block is adjusted according to the frequencies of the refrigerant pipe and the compressor, so that the vibration frequency of the pipeline system is avoided from the frequency of the compressor, resonance between the refrigerant pipe and the compressor is avoided, the vibration amplitude of the refrigerant pipe can be effectively reduced, noise can be reduced, and the stability of the whole pipeline system is improved. The application further discloses a control method for preventing resonance of the pipeline system.

This invention discloses a silent scrubbing method for exhaust gas from the production of phosphorus-nitrogen flame retardants, belonging to the field of phosphorus-nitrogen flame retardant production. The method includes the following steps: S1, the exhaust gas after dust removal enters the primary scrubbing tower tangentially from the bottom, is scrubbed by the sprayed liquid to form post-primary scrubbing exhaust gas, and exits the primary scrubbing tower tangentially from the top; S2, the post-primary scrubbing exhaust gas enters the secondary scrubbing tower tangentially from the bottom, is scrubbed by the sprayed liquid to form post-secondary scrubbing exhaust gas, and exits the secondary scrubbing tower tangentially from the top. This invention removes ammonium polyphosphate dust entrained in the preceding exhaust gas, improves the ammonia absorption rate in the exhaust gas, and reduces noise.

The utility model discloses an engine flywheel housing, including the casing, the outside installation of casing has the dismantling structure, and the middle position of casing is provided with the crank hole, and the inside installation of heat dissipation frame has the cooling fin, and the inside installation of cooling fin has the installation shaft, and the inside installation of installation shaft has the guide groove, and the inside installation of guide groove has the mounting block, and the inside installation rotating shaft of mounting block, and the middle position of rotating shaft installs the spring, and the bottom of spring installs the clamping block, and the side of clamping block installs the clamping groove. The utility model discloses through the cooling fin of heat dissipation frame inside installation makes the heat to be able to pass through more path transmission to external environment, and the air expansion is discharged through the heat dissipation hole, avoids the structural deformation or sealing failure caused by the barometric pressure difference, and the inside of installation shaft is provided with the guide groove, and the clamping block of rotating shaft is clamped into the clamping groove, and the spring is compressed, and the spring elasticity makes the clamping block always be clamped in the inside of clamping groove, and the overall structural strength is strengthened.