79results about How to "Guaranteed normal vibration" patented technology

The invention discloses a precision cycloidal-pin wheel planetary transmission device which comprises a machine base, a power input shaft, an eccentric bushing provided with two off centers, a cycloidal wheel I, a cycloidal wheel II, a dowel pin for cycloidal wheels, a power output shaft, a wheel spider I, a wheel spider II and two sets of pin gears that are respectively arranged on the wheel spider I and the wheel spider II; one end of the dowel pin for cycloidal wheels is fixedly arranged on a flange of the power output shaft and the other end is inserted into an isotonic pin hole of the cycloidal wheel I and the cycloidal wheel II to form a pin type output mechanism; the direction of a tooth outline on which the cycloidal wheel I and a pin gear I are meshed and the direction of a tooth outline on which the cycloidal wheel II and a pin gear II are meshed are reverse. The precision cycloidal-pin wheel planetary transmission device of the invention can eliminate or reduce tooth clearance during the transmission process, thereby improving transmission efficiency, reducing vibration and noise and prolonging service life; the relative position of the two wheel spiders in a circumferential direction is adjustable, so that meshed gap and return difference can be controlled effectively and more options are available when shaping the tooth outline of the teeth of the cycloidal wheels.

The invention provides a method for optimizing automobile body damping distribution. The method comprises the following steps: a finite element model of a composite damping plate is constructed, an automobile body is taken as a flexible panel of the composite damping plate, and a layer of conode bias shell elements for simulating a damping material is arranged on the flexible panel; values of assigned frequencies in a noise transfer function are solved in a preset frequency range, sound pressure amplitudes of the assigned frequencies are obtained, and corresponding target sound pressure values are set for the assigned frequencies; a target function is determined, and a topological optimization model is established with the relative thickness of a damping unit as a design variable and the mass of the damping unit as a constraint condition; modal analysis is performed on all the shell elements on the composite damping plate according to the finite element model, the topological optimization model of each shell element is solved, and an automobile body damping distribution nephogram and a noise transfer function curve are obtained. With implementation of the method, damping distribution is designed, global optimization processing of all modals in a certain frequency range is realized, and the inhibition action of damping distribution on noise radiation can be improved obviously.

The invention discloses a stamping part stratified shelf for an automobile. The stamping part stratified shelf comprises a stamping part stratified shelf body and a stamping part stratified shelf positioning system. The stamping part stratified shelf body comprises a base, a lateral support assembly, a vertical support assembly, guide wheels and stand feet, wherein the lateral support assembly is arranged at the upper end of the transverse side of the base, the vertical support assembly arranged at the upper end of a vertical side of the base, and the guide wheels and the stand feet are arranged at the lower end of the base. By means of the technical scheme of the stamping part stratified shelf for the automobile, the operation of a mechanical arm is standard and accurate, moving and stacking of workpieces are ensured maximally, moving and stacking of automobile large stamping parts operated by the mechanical arm are ensured, the defective caused by workpiece deformation due to manual or mechanical carrying and moving is avoided, working efficiency is improved, and production cost is reduced.

The invention discloses a combined type steel pipe concrete special-shaped column with a honeycomb-hole partition plate. The combined type steel pipe concrete special-shaped column comprises a steel pipe with honeycomb holes and concrete, and is characterized in that longitudinally arranged honeycomb holes are formed in two walls of the steel pipe with the rectangular or square cross section; U-shaped steel is arranged on the outer side of the honeycomb holes; and the concrete is poured into inner cavities of the rectangular or square steel pipe and the U-shaped steel. By the technical scheme, the section of the steel pipe concrete special-shaped column is divided into three chambers; connection among the concrete in the three chambers is enhanced; the interaction between the steel and the concrete is effectively improved; the steel and the concrete are directly stressed, so that the size of the section is reduced, and the width-to-thickness ratio of a steel plate is reduced; the performance of materials is comprehensively developed; the section performance and the bearing capacity are improved; the shock absorption property of the column of the type is improved; the combined type steel pipe concrete special-shaped column is easy and convenient to construct; the vibrating quality and the pouring quality of the concrete are guaranteed; the economical benefit is high; the bonding strength between the concrete and the steel plate is improved; an embedding effect of the steel plate is obvious; high integrity is realized; and a combining effect is outstanding.

The invention discloses a rigid-flexible composite filtering gear which comprises an outer gear ring and a hub sleeved with the outer gear ring in a clearance fit way, wherein elastic body filling holes I are annularly and uniformly distributed between the outer gear ring and the hub; high-damping elastic bodies I are arranged in the elastic body filling holes I. The invention further discloses a rigid-flexible composite filtering gear which comprises an inner gear ring and a gear seat sleevingthe inner gear ring in the clearance fit way, wherein gear teeth are arranged on the inner peripheral wall of the inner gear ring; elastic body filling holes II are annularly and uniformly distributed between the inner gear ring and the gear seat; high-damping elastic bodies II are arranged in the elastic body filling holes II. The invention further discloses a rigid-flexible composite filtering gear meshing pair which comprises two mutually-meshed gears, wherein the two gears are both outer gears, and at least one of the two gears is an outer rigid-flexible composite filtering gear; or, one gear is an outer gear, and the other gear is an inner gear; the outer gear is an outer rigid-flexible composite filtering gear and/or the inner gear is an inner rigid-flexible composite filtering gear.

The invention discloses waste PCB electronic component lossless automatic separating equipment. The waste PCB electronic component lossless automatic separating equipment is characterized in that theseparating equipment is arranged in a straight line manner and is sequentially provided with a feeding device, a heating device, a separating device and a discharging device from left to right; the feeding device and the discharging device are belt conveyors, a PCB with electronic components falls into the heating device through the feeding device to heat a welding face, then the separating deviceis used for separating the electronic components, and the empty PCB and the electronic components which are generated through separation are located on conveying belts on different height layers in the discharging device to be transferred and discharged. The waste PCB electronic component lossless automatic separating equipment is good in comprehensive performance, high in controllability, high in solder recovery purity, capable of guaranteeing the perfect and lossless electronic components and the complete empty PCB, and safe and reliable in operation.

A lubricating grease delivery system of a coal mine rail transport cart comprises an oil reservoir and an oil pump. An outlet pipeline of the oil pump is divided into two branch pipelines via a tee joint, wherein an electromagnetic change valve, a manual operated three-position four-way change valve and an energy accumulator are sequentially connected on one of the two branch pipelines, an inlet and outlet pipelines of the manual operated three-position four-way change valve are connected with a compound hydraulic cylinder a, a lubricating grease reservoir is connected on the front portion of the compound hydraulic cylinder a; a first one-way speed control valve and a three-position four-way electromagnetic change valve are sequentially arranged on the other one of the branch pipelines; a lubricating grease outlet of the compound hydraulic cylinder a is connected with a one-way valve bridge, pipelines on two sides of the one-way valve bridge are respectively connected with a lubricating grease inlet and a lubricating grease outlet of the composite hydraulic cylinder b, and two limiters for limiting travelling distance of a piston are arranged on the front portion of a piston rod of the composite hydraulic cylinder b. Delivery of the lubricating grease is completed via alternating work of the two composite hydraulic cylinders. The lubricating grease delivery system of the coal mine rail transport cart has the advantages of small size, high pressure, large quantity of flow and stable work.

The invention discloses a damping base applicable to a frequency converter. The damping base comprises the frequency converter, fixed screws, a locking connecting device, a fixed part, a connecting part, a connecting pillar, a communicating tank body, a baseboard, mounting holes, a cover plate, a connecting plate, a damping shell, a lower damping spring, an upper damping spring and a lateral damping spring. The damping base is reasonable and simple in structure, and low in production cost, the locking connecting device can quickly lock and fix the bottom of the frequency converter, besides, the frequency converter is also conveniently and quickly dismantled to be maintained, moreover, locking and fixing are conducted through the cooperation of a locking slope and a slot slope, it can be effectively guaranteed that a connecting base is firmly fixed to the upper portion of a fixed base, then it is also guaranteed that vibration of the frequency converter at the upper portion of the connecting base can be transmitted to the connecting plate through the locking connecting device and the connecting pillar, afterwards, damping springs at the peripheries of the connecting plate absorb thevibration, the damping springs are arranged at all the peripheries of the connecting plate, and thus the requirement of the frequency converter for omnibearing damping is met.

The invention discloses a mounting rack for an integrated cooker fan. The mounting rack comprises a base and an arc-shaped clamping seat, the arc-shaped clamping seat is arranged on the base, the arc-shaped clamping seat comprises a bottom support and an arc-shaped frame, and the arc-shaped frame is located in the bottom support. A mounting method comprises the following steps that 1) the arc-shaped clamping seat is mounted; 2) the arc-shaped clamping seat and the base are mounted; 3) a motor supporting part and an air inlet pipe supporting part are mounted; and 4) the fan and the mounting rack are mounted. According to the mounting rack for the integrated cooker fan, mounting and fixing between the mounting rack and the inner wall of an integrated cooker are realized through the base, thearc-shaped clamping seat can be used for clamping and fixing a turbine casing on the fan, meanwhile, a motor on the fan is supported through the motor supporting part, and then an air inlet pipe on the fan is supported by using the air inlet pipe supporting part, so that the mounting firmness and reliability between the whole fan and the mounting rack are effectively guaranteed, the structural stability of the integrated cooker is improved, moreover, the angle of an air outlet pipe can be adjusted according to the actual position of an air duct pipe in the integrated cooker after the fan is mounted on the arc-shaped clamping seat.

The invention discloses a fixed-wing unmanned aerial vehicle time domain aviation electromagnetic exploration system. A transmitting system, a receiving system and a recording and monitoring system are additionally arranged on an unmanned aerial vehicle flight platform. The transmitting system comprises a transmitter and a transmitting coil, and the transmitter is installed in the load cabin and used for converting direct current into bipolar combined wave pulse current; the transmitting coil is installed on the unmanned aerial vehicle nose, the unmanned aerial vehicle wings and the unmanned aerial vehicle pelvic fin structure in a closed shape and used for generating a primary electromagnetic field for measurement of the aviation electromagnetic system; the receiving system comprises a receiver nacelle and an electric winch, and the receiver nacelle is installed below the belly of the unmanned aerial vehicle through a receiver nacelle hanging frame and an automatic throwing device, islocated under the load cabin and is used for receiving a secondary electromagnetic field generated by induced eddy current from an underground conductor; the electric winch is mounted below the bellyof the unmanned aerial vehicle through an automatic throwing device, is positioned right ahead the receiver pod and is used for synchronous winding and unwinding and overload shearing of a three-component receiving coil in the receiver pod; and the recording monitoring system is arranged in the load cabin and is used for recording, storing and receiving the data acquired by the receiving system.

The invention disclose a cooler fixing frame convenient to demount and move. The cooler fixing frame convenient to demount and move comprises stand columns, a base, a pedestal, a top plate and a second clamping plate. The four corners of the bottom end of the pedestal are all provided with wheels. The top end of the pedestal is provided with the base. The base is internally provided with a partition column. The two ends of the inner bottom of the base are both provided with shells, and the shells are internally provided with motors. The two ends of the partition column are both provided with thread lead screws through bearings. The output ends of the motors are both connected with one ends of the thread lead screws through belt wheel mechanisms. The thread lead screws are both provided with drive blocks, the top ends of the drive blocks are provided with first clamping plates, and parts, above the first clamping plates, of the stand columns are both connected with connection rods through connection bases. According to the cooler fixing frame convenient to dismount and move, by arranging the wheels on the four corners of the base, the fixing frame is convenient to move at will, andtherefore certain convenience is brought to a user.

The invention discloses a domestic rubbish disposal device for environmental pollution control. The domestic rubbish disposal device for environmental pollution control comprises a disposal tank, crushing wheels, a pressurization crushing board, a left collision ball, a right collision ball, a second drive motor, a sieve plate and a feeding board; the crushing wheels are arranged inside the disposal tank; the pressurization crushing board is arranged above the crushing wheels and installed on the inner walls of the two sides of the disposal tank in a sliding mode; a plurality of sets of ejector rods are installed on the upper side of the pressurization crushing board in a threaded mode; and the left collision ball and the right collision ball are installed on a first slide rod and a secondslide rod separately. The pressurization crushing board is indirectly driven to move downwards in the crushing process, so that the pressurization effect is achieved in the crushing process of the crushing wheels, and rubbish is crushed more thoroughly; and the disposal tank is impacted through continuous reset movement of the left collision ball and the right collision ball, inner wall vibrationof the disposal tank is ensured, and the situation that rubbish particles adhere to the inner wall of the disposal tank is effectively prevented.

The invention provides a sorting mechanism applied to high-purity copper powder production equipment. The sorting mechanism comprises a dustproof cover, net racks, sieve trays, springs, a base, a feeding opening, a fixed rod, a servo motor, a rotating rod, insertion holes, stirring rods and sieve nets, wherein the dustproof cover is arranged at the top of a sieve tray; the net racks are arranged at junctions between the dustproof cover and the sieve trays; the sieve trays are mounted on the upper side of the base; the springs are arranged on the upper end surface of the base; the feeding opening is formed in the middle position of the dustproof cover; the fixed rod is fixed on the inner annular side of the feeding opening; the servo motor is fixed on the inner side of the fixed rod; the lower end surface of the servo motor is connected with the rotating rod; the insertion holes are formed in the annular side of the rotating rod; the stirring rods are mounted in the insertion holes; thesieve nets are arranged at the bottoms of the sieve trays and are mounted on the inner sides of the net racks. Through the design, the problem of low sorting efficiency of the original sorting deviceis solved; the sorting mechanism is reasonable in structure, convenient to combine and mount, and high in screening efficiency.

The invention discloses an energy-saving method for cylinder replacing work of an internal combustion engine. The air inlet sides of 1 to n-1 cylinders of the internal combustion engine are provided with return-air control valves or inlet/return-air variable valve timing mechanisms and air inlet valves which are controlled by an electronic control unit and can regulate the on-off state or the starting duration along with the change of the rotating speed and the load of the internal combustion engine, so that the cylinders can change between a normal working state and a stop working state; an energy-saving device for cylinder replacing of the internal combustion engine controls the return-air control valves or the inlet/return-air variable valve timing mechanisms and the air inlet valves (1) through the electronic control unit, and the device is formed with the cooperation of check valves so as to finish the energy-saving work of cylinder replacing; the return-air control valves or the inlet/return-air variable valve timing mechanisms and the air inlet valves (1) are arranged on the air inlet sides of the cylinders; and the check valves (2) are arranged at the positions of air inlet manifolds (6), close to the cylinders. Under the condition of low power output, the method and the device can reduce compression stroke, energy consumption of working stroke, improve the energy efficiency ratio of working cylinders, and finally, can greatly reduce the overall energy consumption of the internal combustion engine.

The invention discloses a replaceable horizontal machine tool for road roller production and a use method, and belongs to the technical field of road roller production. The replaceable horizontal machine tool for road roller production comprises a machine tool body, supporting columns are arranged at four corners of the lower end face of the machine tool body, a transmission mechanism is arrangedon the left side of the upper end face of the machine tool body, a supporting plate is arranged on the right side of the transmission mechanism, a linkage mechanism is arranged on the front end face of the supporting plate, an electric push rod is arranged on the middle part of the right end face of the linkage mechanism, a cutting device d is arranged at the tail end of the electric push rod, a water spray pipe is fixed to the upper end of the linkage mechanism, fixed plates are longitudinally and symmetrically arranged on an inner cavity of the machine tool body, baffles are horizontally arranged on the upper parts of the ends, away from the inner cavity, of the fixed plates, a fan is arranged on the upper end face of the left baffle, the upper part of right end of the fan is fixedly connected with an air conveying pipe, and the air conveying pipe is fixedly connected with a cleaning device. The device has simple structure and convenient operation, can effectively separate the coolant and iron chips, ensure the normal operation of the horizontal machine tool, and effectively collect iron chips so as to save energy and reduce emission.

The invention relates to a sealed aviation plug spherical electrical connector, which includes a spherical joint. The spherical joint includes an outer sleeve and a sealing cover integrated with the inside of the outer sleeve. One end of the outer sleeve is provided with a ball head, and the other end is provided with an inverted cone. On the surface, there is a convex ring on the outside of the outer sleeve, and a number of mounting holes are set on the sealing cover, and there are pins arranged in parallel in each of the mounting holes. , There is a glass insulator between the outer wall of the pin and the installation hole; the invention has novel and compact structure, reasonable design, convenient use and assembly, high environmental resistance, corrosion resistance, pressure resistance and temperature change resistance, high sealing and insulation performance, more convenient installation, and can be widely used It is connected to electronic and electrical equipment such as aviation, aerospace, navigation, and electric power to improve the safety and stability of the circuit system.

The invention relates to the technical field of toiletries, and provides an intelligent toothbrush. The intelligent toothbrush comprises a main machine, a tooth socket and a control circuit, wherein the main machine comprises a main machine shell and a driving motor arranged in the main machine shell; the tooth socket comprises a first tooth socket used for cleaning inner and outer tooth surfacesand a second tooth socket arranged in the first tooth socket and used for cleaning molar surfaces; the first tooth socket is connected with a first transmission shaft, and the second tooth socket is connected with a second transmission shaft; the first transmission shaft is in transmission connection with the second transmission shaft and the driving motor; and the control circuit is electricallyconnected with the driving motor to drive the first transmission shaft and the second transmission shaft correspondingly to drive the first tooth socket and the second tooth socket to move, and to drive the first transmission shaft and the second transmission shaft simultaneously to drive the first tooth socket and the second tooth socket to move. According to the intelligent toothbrush, the two tooth sockets are arranged separately, so that the vibration volume of each tooth socket is reduced, and the vibration quantity and the swing quantity of each tooth socket are doubly guaranteed by a separate drive mode, so that teeth can be cleaned more thoroughly.

The invention discloses a sputum-liquefied ultrasonic-assisted sputum drainer. The sputum-liquefied ultrasonic-assisted sputum drainer comprises an ultrasonic transducer and a tubular shell body withone closed end and the other open end, wherein the ultrasonic transducer and the shell body are matched in shape, the ultrasonic transducer can be loaded into the shell body from the open end and is in close contact fit with the internal wall surface of the shell body, the ultrasonic transducer comprises a rear end part, a piezoelectric ceramic group and a matching block sequentially from back tofront, a bolt penetrates through the rear end part and a center hole of the piezoelectric ceramic group and then is in threaded connection with the center of the rear end of the matching block, the rear end part, the piezoelectric ceramic group and the matching block are closely connected integrally, and an acoustic lens which is arranged at a front end is mounted in a recess of the matching block. According to the sputum-liquefied ultrasonic-assisted sputum drainer, a piezoelectric ceramic layer excites ultrasonic waves under the action of high-frequency alternating current, the supersonic waves are focused by the acoustic lens and can be used for exerting a vibrating action on a sputum blocked area of lungs, increasing a temperature and promoting sputum liquefaction, and thus, favorableconditions are created for bronchoscope phlegm sucking or cough sputum draining.

The invention discloses a wheeled vehicle boost system adopting multiplexing power, a chassis structure comprising the wheeled vehicle boost system and an automobile. The wheeled vehicle boost systemcomprises a mounting seat used for being connected with a vehicle chassis longitudinal beam, a suspension structure is hinged to the mounting seat, auxiliary power wheels are fixedly connected to thesuspension structure, a hinging shaft of the suspension structure is parallel to the mounting seat, the mounting seat is fixedly connected with a hydraulic cylinder used for driving the suspension structure to rotate around the hinging shaft and a hydraulic lock bolt used for locking the suspension structure, and the suspension structure is provided with a fixing pin used for being matched with the hydraulic lock bolt. The wheeled vehicle boost system is simple in structure and convenient to use, can effectively guarantee that the auxiliary wheels make contact with the ground all the time, andthus can effectively isolate certain pavement noise, jumping and vibration.

The invention discloses raw material blending and stirring equipment for white spirit production, and relates to the technical field of white spirit production devices, the raw material blending and stirring equipment comprises a stirring equipment main body and a base, the base is arranged at the bottom of the stirring equipment main body, and the upper surface of the stirring equipment main body is fixedly connected with a feed hopper. Through cooperation of a connecting rod, an abutting plate, an elastic spherical shell, a pulling rod, a soft stabilizing rod and an extension spring, when an elastic sleeve plate is compressed to generate elastic deformation, the abutting plate is pushed through the action of the connecting rod, so that the elastic spherical shell is stretched and compressed to generate elastic deformation, and the elastic sleeve plate is pulled to generate elastic deformation; and meanwhile, a pulling rod movably connected to the inner wall of the elastic spherical shell can slide in the transverse direction, a soft stabilizing rod and an extension spring are stretched, elastic deformation occurs, the characteristic of the deformation recovery trend is achieved through the elastic deformation structure, the high elastic damping effect is provided for the elastic sleeve plate, and the overall stability of the device is improved.

The invention discloses a linear vibration motor with non-contact vibration damping. The motor comprises a casing and a lower support, wherein a stator assembly is arranged above the lower support, the stator assembly is sleeved with a vibrator assembly, the vibrator assembly is sleeved with a machine shell, two sides of the vibrator assembly are connected with the machine shell through springs, the springs are of an S-shaped structure, the vibrator assembly comprises a balancing weight, a magnetic steel set is arranged in the balancing weight, and a balance block is arranged above the magnetic steel set. The invention further discloses an implementation method of the non-contact vibration damping linear vibration motor. Compared with a linear vibration motor in the prior art, the structure is more compact, and the linear vibration motor is extremely suitable for motors with small sizes or small vibration direction sizes, the spring disclosed by the invention is small in occupied space, but can provide a relatively large deformation space, so the vibration sense under a small size is ensured, and the space utilization rate of a product is increased.

The invention discloses a sound production device, the sound production device comprises a shell, a magnetic circuit system and two vibration systems, the magnetic circuit system comprises a central magnetic circuit structure and side magnetic circuit structures, the central magnetic circuit structure comprises a central magnet and two central magnetic conductive plates, each central magnetic conductive plate comprises a first magnetic conductive part corresponding to the central magnet, the at least one central magnetic conductive plate comprises a first connecting part extending outwards from the edge of the first magnetic conductive part, and the first connecting part is connected with the shell; the side magnetic circuit structure comprises a plurality of side magnets and side magnetic conductive plates, and the side magnets and the first connecting parts are distributed at intervals in the circumferential direction of the central magnet; and magnetic gaps are formed between the central magnet and the central magnetic conductive plate and between the side magnets and the side magnetic conductive plates. Each vibration system comprises a vibrating diaphragm and a voice coil, the vibrating diaphragms are installed on the shell, the two vibrating diaphragms are arranged on the two opposite sides of the magnetic circuit system respectively, and the voice coil of each vibration system extends into the magnetic gap. According to the technical scheme, the sound loudness of the sound production device can be improved while double-sided sound production is realized.

The invention discloses a radial multidirectional dispersed sound-absorbing material, and belongs to the field of sound absorbing materials; according to the radial multidirectional dispersed sound-absorbing material, on one hand, sound waves are converted into the vibration force of slow vibration rods; under the vibration effect of the slow vibration rods, the slow vibration rods are in a radialshape, so the sound is transmitted into the sound-absorbing material along the continuously changing direction of the slow vibration rods, and through similarly breaking up the entirety into parts, the sound can be differentiated; further, the sound absorption and noise reduction effects of the sound-absorbing material are obviously improved. On the other hand, when the sound is transmitted to the slow vibration rods; sound propagation speed is reduced, the time of sound in the sound-absorbing material is prolonged, and furthermore, the effect of sound consumption is achieved, so that sound absorption effect is better; and meanwhile, the upward vibration amplitude of the slow vibration rods can be effectively increased by matching with the effect of a differentiation-assisting fixed ball,so that the differentiation range of the sound-absorbing material to the sound is larger, and the sound absorption effect of the sound-absorbing material is further improved.