394results about How to "Reduce vibration frequency" patented technology

A perineometer exercise probe for home or clinical use assesses the strength of pelvic floor muscles and provides audible, visual and tactile biofeedback signals as training aids during pelvic exercises. The exercise probe is selectively operable in a passive reaction mode, in which audible, visual and tactile biofeedback signals proportional to pelvic muscle contractions are generated, and in an active vibrating mode in which therapeutic vibrations are applied directly to internal pelvic musculature with or without co-generation of biofeedback signals proportional to the strength of pelvic muscle contractions; and in a combination of both modes simultaneously. The probe reacts the pelvic contraction forces and thus provides passive tactile feedback signals that are experienced simultaneously with audible, visual and vibration-induced tactile biofeedback signals for improving the endurance and strength of pelvic floor muscles. Biofeedback signaling is facilitated by wireless two-way communication between the probe and a portable monitor.

The invention provides a TIG (tungsten inert gas) welding method for auxiliary mechanical vibration droplet transfer and a TIG welding device for the same. The TIG welding device comprises a TIG power supply, a wire feeder, a guide tube, an auxiliary mechanical vibration device, a wire feeding nozzle and a welding wire, wherein the wire feeder is connected with the guide tube, the guide tube is connected with the wire feeding nozzle, and the auxiliary mechanical vibration device is fixed to a frame. A vibration rod is driven to vertically vibrate in a reciprocating manner by an internal body driving motor and a transmission device, and a buffer spring is sleeved between the vibration rod and a contact. The TIG welding method includes the steps: igniting an arc heating workpiece, forming a molten bath after arc is stable, and then starting the wire feeder to automatically feed in the welding wire; and starting the auxiliary mechanical vibration device, leading the vibration rod, the contact and the welding wire to mechanically vibrate, and performing welding under the action of auxiliary mechanical vibration. The TIG welding device is simple, convenient in operation and high in applicability, and compared with digital control equipment, the TIG welding device greatly reduces cost and is convenient for industrial popularization.

An adhesive composite silencing saw blade primary structure comprises a saw blade primary structure body, wherein a center hole is formed in the center of the saw blade primary structure body, and the saw blade primary structure body is formed by bonding a plurality of layers of metal plates through adhesive layers. There are three layers of metal plates, and the thickness of the middle layer of metal plate is larger than the thickness of the outer layer primary structure body. A welding layer is further arranged in the adhesive layers. According to the adhesive composite silencing saw blade primary structure, the composite structure formed by bonding the multiple layers of metal plates is adopted for making the saw blade primary structure body have good strength, rigidity and plasticity, and therefore on the one hand, cutting deflection can be effectively reduced, and on the other hand, self-absorbing and buffer performance of cutting vibration can be improved. The arranged adhesive layers serve as damping medium layers to effectively reduce vibration generated in the saw cutting process and lower noise generated in the saw cutting process.

The invention discloses an instrument for measuring static electricity on line, belongs to the field of static electricity monitoring, and particularly relates to the instrument for measuring static electricity on line. A static electricity sensor consists of a sensing metal surface, a shielding metal surface and an insulation sheet; the sensing metal surface is fixed on one surface of the insulation sheet; the shielding metal surface is fixed on the other surface of the insulation sheet; and a bimorph piezoelectric vibrator is fixed on the shielding metal surface of the static electricity sensor. The instrument for measuring the static electricity on line has the characteristics of low driving voltage, low vibrating frequency and large vibrating amplitude, can pass the safe explosion-proof authentication, and can measure the static electricity on line and make an alarm in places where oil products and flammable and explosive gases are stored and transported, so that a present blank in the field is filled up; and enough sensing voltage and sensing current can be obtained on the sensing metal surface, so that a final measurement value has a relative high linearity.

The invention discloses a piezoelectric type energy harvester used for recycling the vibration energy of a diesel engine. The piezoelectric type energy harvester comprises a barrel pedestal, wherein piezoelectric units are arranged on the barrel pedestal; each piezoelectric unit comprises an annular outer casing; three or five objective tables are uniformly arranged at equal angles on the inner side face of each annular outer casing; a piezoelectric ceramic stack and a limiting baffle plate are arranged on each of the objective tables; the piezoelectric ceramic stacks are respectively of a layered structure formed by stacking piezoelectric ceramic wafers; glands are respectively arranged above the piezoelectric ceramic stacks; the top parts of the glands are respectively provided with a support rod; cantilever beams are respectively arranged above the support rods; the cantilever beams are respectively connected with mass blocks at the centres of the annular outer casings. According to the piezoelectric type energy harvester, the direct piezoelectric effect of piezoelectric ceramic is utilized; as a cantilever beam structure is adopted to harvest the vibration energy of the diesel engine, the harmful vibration is changed into usable electric energy; therefore low-energy-consumption electric appliances on a ship can be supplied with power, and the consumption of fossil fuel is reduced.

The invention relates to a position and attitude stability control method for an operational flying robot after grasping. The position and attitude stability control method comprises the steps that firstly, a four-rotor unmanned aerial vehicle carrying mechanical arm system is modeled through a Newtonian-Euler equation method; then, gravity center offset system parameters are considered in a position controller, and the gravity center offset system parameters are compensated in sliding mode control, so that a four-rotor unmanned aerial vehicle platform flies according to a target trajectory; then, the expected roll-over angle, the expected pitch angle and the lift required by the four-rotor unmanned aerial vehicle platform flying according to an expected trajectory are calculated; and it is considered that gravity center offset control parameters and the inertia tensor are not constants in an attitude controller, adaptive law is added into the attitude controller to estimate the gravity center offset control parameters and the inertia tensor, a CMAC neural network is added to approximate a real value of the inertia tensor online, the required input torque is calculated, and then the rotational speeds of four rotors are calculated simultaneously. According to the position and attitude stability control method for an operational flying robot after grasping, the problems of unknown time-varying parameters, insufficient stability of attitude control and insufficient stability of gravity center offset to the position in attitude control law can be solved.

The invention relates to a smart damping-varying semi-active vibration absorption rubber mat based on vibration generation, which is formed by bonding a vibration generation layer, a dielectric elastomer layer and a rubber layer. Vibration energy of different magnitudes are converted into different voltage values by the vibration generation layer so as to change damping of the dielectric elastomer layer, so that the object of changing the damping of the rubber mat at right time and proper amount according to different vibration frequencies and amplitudes is achieved. Problems that performance parameters of common damping materials such as rubber, silica gel and asphalt are fixed, and the controllable vibration frequency range is narrow are solved, and requirements for wide frequency range vibration control of a hydraulic system under the high speed and high pressure development trend are met.

The invention provides a 420GHz 10th harmonic frequency mixer. The 420GHz 10th harmonic frequency mixer comprises a radio-frequency input waveguide, a radio-frequency waveguide-suspended micro-strip transition structure, a diode, a radio-frequency suppression low-pass filter, a local oscillator waveguide-suspended micro-strip transition structure, a local oscillator input waveguide and an intermediate-frequency filter, which are connected in sequence, wherein a radio-frequency signal is input by the radio-frequency input waveguide and is fed into the diode after coupled by the radio-frequency waveguide-suspended microstrip transition structure; the intermediate-frequency filter, the local oscillator waveguide-suspended micro-strip transition structure and the local oscillator input waveguide form a local oscillator-intermediate-frequency duplexer together; a local oscillator signal is input by the local oscillator input waveguide and is fed into the diode after passing through the duplexer and the radio-frequency suppression low-pass filter in sequence; frequency mixing is carried out on the radio-frequency signal and the local oscillator signal in the diode, and a frequency mixing signal is output; and the radio-frequency suppression low-pass filter is a 9-order CMRC (Compact Microstrip Resonant Cell) low-pass filter with a wide stop-band. According to the 420GHz 10th harmonic frequency mixer, by adopting a 10th harmonic frequency mixing way, the local oscillator frequency is greatly reduced; meanwhile, by adopting the 9-order CMRC low-pass filter, the circuit dimension is effectively reduced.

The invention discloses an acceleration sensor based bridge cable vibration frequency detection method and device. The acceleration sensor based bridge cable vibration frequency detection method comprises the steps of installing auxiliary machines at the positions of the same height of cables of a bridge to be detected; collecting the vibration information of the corresponding cables by the auxiliary machines through digital acceleration sensors timely and sending the vibration information to the same host; collecting the multi-channel vibration information corresponding to the cables by the host and performing processing according to the multi-channel vibration information to obtain the vibration frequency of every cable. The acceleration sensor based bridge cable vibration frequency detection device comprises the host and the plurality of auxiliary machines; the host comprises a main controller, a main communication module, a storage module, a main power supply module and a display module; every auxiliary machine comprises an auxiliary controller, the digital acceleration sensor, an auxiliary communication module and an auxiliary power supply module; the auxiliary communication modules are connected with the main communication module through a wireless network. According to the acceleration sensor based bridge cable vibration frequency detection method and device, the detection accuracy is high, the circuit structure is simple, wiring is not required, the installation is simple and rapid, the anti-interference capability is strong, the detection speed is high, the measuring efficiency is high, the universality is good, and the application is wide.

The invention provides an information terminal processing device and a vibration generating device which can improve operation feeling of operation of a touch-sensitive panel. The information terminal processing device (1A) having a touch panel (3) and a housing (2) which accommodates a circuit board inside has a touch panel (3), a vibration actuator (6A) and a vibration transmission unit (7), the vibration actuator (6A) has a movable component (16A) which moves back and forth and an enclosure (8) accommodating the movable component (16A), according to the operation on the touch panel (3), the movable component (16A) impacts the enclosure (8), the vibration transmission unit (7) is clamped by the vibration actuator (6A) and the touch panel (3), and frequency of vibration generated by the vibration actuator (6A) is reduced and vibration is transmitted to the touch panel (3).

The invention discloses a double-spindle core moving type numerical control lathe. The numerical control lathe structurally comprises a fixture rotating driving motor, support legs, a workpiece adsorption fixing device, a double-open glass door, a three-color warning lamp, a double-spindle numerical control lathe body, a controller, a cuttings guide pipe and a movable cuttings storage frame. The workpiece adsorption fixing device is arranged in the double-spindle numerical control lathe body. The fixture rotating driving motor is arranged at the bottom of the workpiece adsorption fixing deviceand is in clearance fit with the workpiece adsorption fixing device. According to the double-spindle core moving type numerical control lathe, the workpiece adsorption fixing device inserts one end of a workpiece into a fixture axle hole; at the moment, a driving mechanism can be triggered; the workpiece adsorption fixing device automatically fixes the workpiece to the interior of the axle hole through cooperation of a vacuum adsorption mechanism and an electromagnetic reinforcement mechanism; accordingly, the workpiece is fixed automatically, and the manual material changing speed is increased.

The invention discloses a small-size circumferential-spiral-groove longitudinal-vibration underwater transducer, which comprises a transducer body. The transducer body comprises a back cover plate, a piezoelectric ceramic stack, a front cover plate and a front-end cutting body, which are connected in sequence. The piezoelectric ceramic stack is formed by piezoelectric ceramic pieces and electrode slices, which are laminated alternately, and the two ends of the piezoelectric ceramic stack are the electrode slices respectively. One end of each piezoelectric ceramic piece is connected to a positive lead wire through the corresponding electrode slice, and the other end thereof is connected to a negative lead wire through the corresponding electrode slice; and the positive lead wire and the negative lead wire are connected to an excitation source. The underwater transducer realizes low-frequency emission within a frequency range of 50 Hz-1000 Hz. Besides, the transducer has the advantages of small overall size, simple structure and manufacture process and low cost.

The invention provides a heavily-loaded vehicle cab rear suspension device, belongs to the technical field of machinery and solves the problem that existing suspension devices are complex in structure, large in mounting occupation space, low in comfortableness and the like. The device comprises a pair of supports in left-right symmetry, a pair of damping shock absorbers and a pair of springs, a pair of rocker arms is hinged at the upper end of each support, a lock bolt is connected between each pair of the rocker arms, a connecting block is arranged on each lock bolt and used for being fixedly connected with a cab, the lower end of each support is fixedly connected with a crossbeam of a vehicle, each damping shock absorber comprises a cylinder and a piston rod, the inner end of each piston rod is positioned in the corresponding cylinder while the outer end of the same extends out of the cylinder to be hinged with the corresponding pair of the rocker arms, the bottom of each cylinder is hinged to the middle lower end of the corresponding support, each spring is sleeved on the corresponding damping shock absorber, and one end of each spring is abutted against the corresponding cylinder while the other end of the same is abutted against the corresponding piston rod. The heavily-loaded vehicle cab rear suspension device has the advantages of convenience for processing, low production cost, small mounting occupation space and the like.

The invention discloses a vibration frequency adjustment method, a device, an electric toothbrush and a computer readable storage medium. The method is applied to the field of operation experience optimization of a mobile terminal, and the method includes: acquiring a brushing pressure received by a brush head of the electric toothbrush; and determining a preset pressure level at which the brushing pressure is located; and adjusting the vibration frequency of the electric toothbrush according to a preset pressure level at which the brushing pressure is applied, so that the user can adjust thevibration frequency of the electric toothbrush by changing the pressure of the brushing tooth, for more sensitive parts, a smaller force can be used to make the vibration frequency of the electric toothbrush smaller for protection purposes; and for the position with more tooth stains, a larger force can be used to make the vibration frequency of the electric toothbrush higher to achieve the purpose of cleaning, which greatly improves the user experience.

The invention relates to the technical field of new energy and discloses new energy power battery fixing device comprising a placement box. A sealing strip is arranged at the top of the placement box,a clamping device is arranged in the placement box, a cooling fan is fixedly installed on the surface of the placement box, a sealing device is arranged on the surface of the cooling fan, and a threading hole is formed in the surface of the placement box. According to the new energy power battery fixing device, the top of the fixing device is sealed through the sealing strip; dust of the coolingfan is filtered through the filter screen; when the cooling fan rotates, a cleaning brush is driven to rotate so as to clean dust on the surface of the filter screen; the fixing device is convenient to seal, dust on the surface of the filter screen is convenient to clean, the probability of blockage of the filter screen is reduced, accumulation of dust on the surface of the filter screen is reduced, the heat dissipation effect is improved, the sealing performance of the fixing device is improved, and the content of dust in the fixing device is reduced.

The invention discloses a piezoelectric vibration generating set which comprises a base, at least two conductive welding pins and at least one generating component. The base is of a hollow structure, the at least two conductive welding pins are mounted on the base, each generating component comprises an elastic plate, a piezoelectric plate arranged on the elastic plate and a free vibrator mounted on the elastic plate, the piezoelectric plates are electrically connected with the conductive welding pins, each elastic plate comprises an annular edge supporting part which is supported on the base and a middle mounting part which is arranged inside the edge supporting part and located in the center of the corresponding elastic plate, a certain clearance is formed between each edge supporting part and the corresponding middle mounting part, and at least three connecting bridges enabling the edge supporting parts to be connected with the middle mounting parts are arranged in each clearance. The circumferential edges of the elastic plates are supported on the base, when the piezoelectric vibration generating set works, the elastic plates drive the piezoelectric plates to vibrate axially along the axes of the piezoelectric plates, and electricity generating efficiency is high.

The invention discloses a CVT (Continuously Variable Transmission)-based coaxial parallel hybrid power gas heat pump system, and relates to a novel air conditioning system for combining a CVT device and a hybrid power gas heat pump system into an organic whole body. The system comprises a CVT device, an engine, a motor, a lithium iron phosphate battery pack, a compressor, an evaporator, a condenser, a waste heat recovery system and the like. The power of the engine and the motor is coupled and then transferred to a drive shaft through a hydraulic torque converter of the CVT, a metal belt type continuously variable transmission mechanism and a main speed reducer to drive the compressor in the heat pump system to operate. The transmission ratio in the drive system is adjusted by controlling hydraulic pressure in driving and driven belt wheel cylinders so as to change working radius on driving and driven belt wheels, and continuously variable transmission can be realized in an equivalent wide range, so that the optimal matching of the transmission system and the working condition of the engine is obtained, and the gas economy of the entire heat pump system is improved.

The invention discloses an intelligent shock-absorbing standard worktable for a machine tool, which comprises magnetorheological fluid, exciters, a damping gasket, liquid seals, a digital power source, a standard worktable, damping connectors and a 3D (three-dimensional) sensor. The 3D sensor and the digital power source control the exciters to subject the magnetorheological fluid to intelligent energy conversion. Using the intelligent shock-absorbing standard worktable solves the problems that the existing flexible clamp in an elastic structure for damping is unable to sufficiently absorb shock, the elastic structure generates a new shock source in returning, the shock absorption frequency range is narrow, the efficiency fails to increase high and the like. The intelligent shock-absorbing standard worktable is simple in structure and easy in control, shock is automatically tracked, efficiency of frequency variation and amplitude reduction is improved, machining speed is increased greatly, surface roughness is improved, production efficiency by unit energy consumption is improved, machining precision of various cutting and grinding devices is improved, shock frequency and amplitude of process systems are changed, relative rigidity of the process systems is enhanced, and high-precision machining, process shortening and consumption reduction are achieved.

The invention discloses rapid and efficient paint spraying equipment. The rapid and efficient paint spraying equipment comprises a machine box and an operating room. Two liquid paint storage boxes and a rotating motor are mounted at the bottom end inside the machine box. A paint outlet of each liquid paint storage box is connected with a spray pipe located inside a spray gun through a paint feeding pipe, wherein the paint feeding pipes penetrate a support plate. Electromagnetic guide rails are fixed to the left end wall and the right end wall of the operating room correspondingly. Each spray gun is mounted on the corresponding electromagnetic guide rail. Each spray gun is internally provided with a pressure pump and the corresponding spray pipe. A paint outlet in the front end of each pressure pump is connected with a spray head mounted at the front end of the corresponding spray gun through the corresponding spray pipe. A rotating shaft of the rotating motor penetrates the support plate and is connected with a gear engagement opening in the bottom end of a rotary fixing seat located inside the operating room in a gear-engagement manner. The rotary fixing seat is composed of fastening plates, spiral fastening rods and fastening discs. The rapid and efficient paint spraying equipment is convenient to move; by means of a shock-absorption bottom plate mounted at the bottom end, vibration frequency of the equipment can be effectively lowered; meanwhile, noise generated in the working process is lowered; a paint film formed after paint spraying is uniform; and the equipment is high in precision.

The invention discloses a bamboo and wood floor cutting device, which comprises a driving device, a guide rail, a motor room, a cutter head, a dust suction hose, a base and a board fixing device; the board fixing device is installed on the surface of the base, and the base A driving device is installed on the upper side of the seat, the guide rail is connected with the cylinder through an air rod, a slide rail is installed on the surface of the guide rail, a hydraulic cylinder is installed on the upper side of the guide rail, a scale is installed on the upper side of the motor room, and the A rotating motor is installed inside the motor chamber, the motor chamber is connected with the rotating shaft through the main shaft, and a cutter head is installed on the surface of the rotating shaft, and a cutting knife is installed on the surface of the cutter head. By installing a shock absorber inside the motor room, this device can effectively reduce the vibration frequency of the motor room and increase the service life of the device, and a muffler is installed inside the drive device, which can reduce the noise emitted by the drive device and ensure It ensures the comfort of the working environment and protects the physical and mental health of the staff.

The invention discloses an electric toothbrush control method which is used for controlling an electric toothbrush to work. The electric toothbrush comprises a motor, a sensor and a controller. The control method comprises the steps that: the electric toothbrush is initialized and started, and the motor works in a slight vibration mode; the sensor detects the stress borne by the motor working in aslight vibration mode, and the stress is recorded as first detection pressure; and the controller continuously obtains the stress detected by the sensor, and if the stress detected by the sensor is larger than the first detection pressure by a first amplitude, the controller controls the motor to be switched to a normal vibration mode. Foam on the toothbrush head can be prevented from splashing everywhere before tooth brushing, and the anti-splashing function is achieved. Besides, the sensor detects the stress borne by the motor working in the slight vibration mode, and the stress is recordedas first detection pressure and serves as a comparison reference value, so that the stress can be updated every time the electric toothbrush is used, and the influence of permanent deformation of theelectric toothbrush is avoided.

The invention relates to an installation structure of an automobile airbag controller. The installation structure of the automobile airbag controller comprises a reinforcement part and an installation support; the reinforcement part is positioned and connected under the middle section of the central channel of the front floor; the installation support is positioned and connected above the middle section of the central channel of the front floor; the reinforcement part is corresponding to the installation support. The installation structure of the automobile airbag controller is characterized in that the automobile airbag controller is arranged on the installation support. According to the installation structure of the automobile airbag controller, signals can be accurately collected by the automobile airbag controller when an automobile drives on the complex road surface and under various working conditions and accordingly the reliability can be improved and the safety of passengers can be ensured and meanwhile the arrangement space of the front of the automobile can be optimized and accordingly the space of an automobile cabin can be unobstructed and the maintenance can be convenient.

The invention provides an outdoor unit of an air conditioner. The outdoor unit comprises a base plate, a top cover, a partition, a compressor and a gas-liquid separator. The partition is disposed between the base plate and the top cover. The compressor is disposed on the base plate. The gas-liquid separator is disposed on the partition. The bottom of the gas-liquid separator is higher than the top of the compressor. The distance between the bottom of the gas-liquid separator and the base plate is smaller than two thirds of the height of the partition. Due to the fact that the gas-liquid separator is disposed on the partition, the gas-liquid separator and the compressor are disposed at different positions, mutual vibration transmission of the gas-liquid separator and the compressor is avoided, and vibration frequency and vibration amplitude are lowered. Due the fact that the distance between the compressor and the gas-liquid separator is increased, that is to the peripheral space of the compressor is increased, vibration, caused by the compressor, to peripheral air is dissipated easily, vibration noise of the compressor is reduced effectively, performance of the outdoor unit is increased, user experience is increased, and the service life of the outdoor unit is prolonged.

The invention relates to a motor damping vibration attenuation structure. The motor damping vibration attenuation structure is mainly characterized in that an annular groove is formed in the outer side of a motor end cover bearing chamber, and a damping ring is installed in the groove. By means of the motor damping vibration attenuation structure, a fluororubber damping ring or a silicone oil damping ring is installed in the annular groove of the outer side of an upper bearing chamber of a bearing end cover, vibration of a motor can be effectively reduced, and the vibration acceleration grade of the motor can be reduced by 4-12dB after the damping ring is installed after a comparison test. The motor damping vibration attenuation structure is simple and compact and easy to machine, the damping ring can be installed conveniently, and general utilization of the motor end cover can be conducted easily.

The invention discloses a motor with a damping function. The motor comprises a motor body, wherein a body is arranged in the middle of the motor body, the outside of the middle of a limit column is sleeved with a first damping spring, second damping springs are mounted at two ends of the limit column, a cooling water pipe is mounted on one side of a protection baffle, and positions, located on twosides of a pull rod, of a mounting shaft are symmetrically wrapped with clearing cloth. The motor is scientific and reasonable in structure and safe and convenient to use, transverse shock wave energy of the motor is reduced under the action of a first damping spring and a second damping spring, the condition that a mounting seat and the body are separated due to transverse shock of the motor isavoided, and meanwhile, breakage and damage of bolts due to shear stress can be avoided; a baffle plate is used for stably driving air near cooling fins to flow, so that flowing air exchanges heat with the cooling fins effectively, and the problems that existing cooling fin structures are single and air attached to the surfaces of the cooling fins cannot flow effectively are solved.

Aspects of the present disclosure describe a robot which has a controller, actuators, encoders, and mechanical components. The robot may produce motion about an X, Z, RU, RL, and Theta axes. Movements of the robot are controlled by the controller. The repeatability of the robot is improved by designing the robot such that a control cycle frequency of the controller is 50 times or more greater than a vibrational frequency of one or more of the mechanical components. In order to reduce the release of particulates, a baffled enclosure may be used. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. This abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

The present invention is a new automobile engine rear suspension cushion assembly, including an inner frame and an outer frame. There is a vulcanized rubber body between the inner and outer frames. At the same time, the outer frame is wrapped in the vulcanized rubber body. The outer diameter of the inner frame passes through a taper transition section to a straight line section; the corresponding outer skeleton also includes a straight section, the straight section is provided with an inclination angle, the inclination angle is downwardly provided with a vertical section, and a hook is provided behind the vertical section; the inclination angle of the outer skeleton corresponds to the outer diameter of the inner skeleton The taper transition section, the vertical section of the outer skeleton corresponds to the straight section of the outer diameter of the inner skeleton; the shock-absorbing arc of the shoulder of the rubber body is an outer arc. The present invention vulcanizes the inner and outer skeletons and the vulcanized rubber body as one, and adjusts the original inner skeleton structure at the same time. The upper part is changed from an arc excessive design to an inclination angle design, that is, a taper transition section design, which is consistent with the inclination angle of the outer skeleton. It can reduce the shear strength of rubber and improve the fatigue life of products.

The invention relates to the technical field of organic electroluminescence, in particular to an organic compound, application thereof and an organic electroluminescence device containing the compound, and particularly relates to a novel thermal activation delayed fluorescence material. The material has the structure in the the formula (1), wherein R1-R6 is independently selected from cyano groups, deuterium atoms or one of perdeuterium-substituted groups selected from substituted or unsubstituted C3-C60 monocyclic heteroaryl containing at least one nitrogen atom, substituted or unsubstitutedC3-C60 fused ring heteroaryl containing at least one nitrogen atom, substituted or unsubstituted C6-C30 arylamino, and substituted or unsubstituted C3-C30 heteroarylamino groups, and at least one of R1-R6 is a cyano group. The compound disclosed by the invention has the advantages that when the compound is used as a luminescent layer material in an OLED device, the compound has better thermal stability, higher photoluminescence quantum efficiency and higher reverse intersystem jump rate, and can show excellent device efficiency and stability. The invention also discloses an organic light-emitting device adopting the compound with the general formula.

The invention discloses a pressurization control method and a pressurization control system for a rotary drilling rig. The pressurization control method for the rotary drilling rig includes the following steps that the pressure value of a rodless cavity of a left mast oil cylinder (11) and the pressure value of a rodless cavity of a right mast oil cylinder (16) are obtained respectively; a controller processes the pressure value of the rodless cavity of the left mast oil cylinder (11) and the pressure value of the rodless cavity of the right mast oil cylinder (16) to obtain the pressure difference value of the rodless cavity of the left mast oil cylinder (11) and the rodless cavity of the right mast oil cylinder (16); the pressure of a rodless cavity of a pressurization oil cylinder (20) is controlled according to the relationship of a preset pressure difference value and the pressure value of the rodless cavity of the pressurization oil cylinder (20). The pressurization control method for the rotary drilling rig can automatically adjust pressure applied to a power head by the pressurization oil cylinder, reduces the probability of drilling stem unbalance loading and mast unbalance loading caused when a drill bit impacts a load and a load is unbalance, lowers vibration frequency, and operating mechanism damage caused by factors such as human judging errors or operating delay and personal and equipment safety accidents caused due to the facts that damaged parts fall from a high altitude are avoided.