229results about How to "Reduce vibration noise" patented technology

The invention discloses a shock-absorbing device of a rolling washing machine, and relates to the field of washing machines. The shock-absorbing device comprises a shell, an outer cylinder, a tension spring connected above the outer cylinder and a damping support rod installed below the outer cylinder; an opening end and a bottom end of the outer cylinder are respectively provided with a front weight balancing block and a rear weight balancing block; and the shock-absorbing device is characterized in that: two pressure springs are installed below the outer cylinder and are respectively installed at the two sides of the bottom axis of the outer cylinder. In the scheme, the pressure springs are installed at the two sides of the bottom axis of the outer cylinder and used for respectively bearing the weight of the outer cylinder and the weight of the weight balancing blocks, the gravity applied to the damping support rod and the tension spring can be reduced, the demand intensity of the tension spring and the damping support rod can be reduced, and the service life of the damping support rod and the tension spring are prolonged. Moreover, the vibration and the noise of the whole rolling washing machine are controlled within certain ranges so as to achieve the purposes of reducing the vibration and eliminating the noise.

The invention discloses an automatic production line system for coating and maintaining buoys and an application method thereof. The system comprises a hanging and conveying device, a blasting cleaning plant, a shot blasting cleaning plant and a drying unit; all the devices are provided with hanging type loading workpieces; the hanging type loading workpieces are used for realizing ascending and descending, walking and autorotation of the buoys in the process of cleaning the blasting and shot blasting, spraying painting and drying.The application method comprises: a. a trolley is moved to a ring-shaped rail to hoist buoys; b. the buoys enter a cleaning room to carry out blasting and shot blasting; c. the buoys enter a spray room to be painted; d. the buoys enter a drying room to be dried; e. the buoys once again enter the spray room to be painted once again; f. the buoys are dried once again. In the invention, the workpieces are loaded in a hanging manner, the lifting appliances can ascend and descend, walk and automatically rotate. Blasting and shot blasting cleaning, paint spraying, three-station drying are completed respectively to form an automatic coating processing production line; and in addition, program control is realized and a high degree of automation is enjoyed.

The invention relates to the field of processing filling food, in particular to a molding method for food with round shape, comprising the following steps that: A, charging: skin and stuffing are added in feeding assemblies of a split type feeding system of a molding machine for food with round shape; B, compositing: the skin and stuffing of the feeding assembly are allowed to enter a skin-stuffing complex; C, cutting off: the skin and stuffing output by the skin-stuffing complex are cut off by a cutting assembly which is connected with a cutting lift assembly, the cutting assembly is driven by the cutting lift assembly to realize the cutting function and moving up and down simultaneously; D: ball-kneading: the cutting-off skin and stuffing are put into a ball-kneading device for kneading into balls; and E, discharging on the plate: the products obtained by ball-kneading are transferred to a discharging plate assembly from the ball-kneading device. According to the invention, the two independent feeding assemblies and the skin-stuffing complex have the advantages of simple disassembling and installation, when cleaning or maintaining the parts, only at least one feeding assembly needs be disassembled from the skin-stuffing complex to carry out the cleaning and the maintenance. Because the disassembling is realized by simple rotation, the present disassembling mode is simplified with saving the disassembling time and improving the work efficiency.

The invention relates to a material for building a movable house, in particular to a magnesium light synthesis flame retardant floor plate and a process for preparing the same, wherein magnesia, magnesium chloride, gypsum powder, saw dust, phosphoric acid, oxalic acid, tri-sodium, triethanolamine, resin glue and water are mixed according to the weight ratio of 20Kg:15Kg:4Kg:10Kg:2Kg:0.3Kg:0.2Kg:0.4Kg:0.1Kg:1.5Kg:15Kg, and made to be the magnesium light synthesis flame retardant floor plate with the specification of 1530mmx75mmx38mm by taking two bamboo bars as ribs. The invention has the advantages of reducing the consumption of timber source and eliminating the risk of fire accident, along with little noise, cleanness and sanitation.

The oiliness bearing end cover of the fan electric machine used in the air condition belongs to the air condition electric machine technology domain, it can solve the problem of the production of the shake and the noise when the concentric degree of the bearing room, the ball bearing and the axes hole of the existing fan electric machine ball bearing. The technology process frame includes the center pressing oiliness bearing room and the axis of rotation open hole, the several end cover of the clipping claw is rushed to form in the ring center; the nip mat rubber washer are connected in the end cover with the clipping claw in turn, the center contains the oiliness bearing cover of the axis of rotation open hole and the oiliness bearing tray; the oil cotton is filly loaded the two sides of the oiliness bearing cover. the invention has many merits such as the brief frame, the low cost, the easy machining and assemble, the low badness percentage and the good working ability, the easy concentric adopting of the bearing room slot, the bearing, the axis of rotation and the open hole of the axis of rotation, the same axis degree, the decreasing shock of the fan electric machine and the noise.

In a power steering apparatus employing an EPS (electrical power steering) motor coupled to a steering mechanism, when vibration of the steering mechanism is produced by twisting of tire rubber due to changes in steering angle, resultant pulsation of the drive current of the EPS motor are suppressed by adding to the drive current a current that is of equal frequency and opposite phase to the pulsation. Vibration of the EPS motor shaft, and resultant vibration of the steering wheel and vehicle body, are thereby effectively suppressed.

The invention discloses a rotor and a motor. The rotor comprises a rotor iron core, wherein the rotor iron core comprises a shaft ring part and a plurality of fan-shaped parts arranged around the shaft ring part at intervals, and a containing groove is formed between every two adjacent fan-shaped parts; a plurality of magnets, wherein each magnet is embedded in one accommodating groove; and damping pieces filled between the plurality of fan-shaped parts and the shaft ring part and between the magnet and the rotor iron core. According to the motor, the damping pieces are filled between the plurality of fan-shaped parts and the shaft ring part and between the magnets and the rotor iron core, so that the damping effect of the motor can be improved, and the vibration noise is effectively reduced.

The invention relates to a composite ceramic fiction material of potassium hexatitanate / sodium hexatitanate whisker belonging to the material technical field, wherein the composite ceramic fiction material comprises 5-20 parts of organic resin, 1-10 parts of rubber powder, 10-40 parts of potassium hexatitanate and sodium hexatitanate whisker, 0-5 parts of aramid fiber, 10-20 parts of graphite and 20-40 parts of filler. The composite ceramic fiction material of the invention doesn't contain asbestos without harming the human body and polluting the environment, which has superiorities in eliminating braking noise and heat degeneracy, improving using life of the product, overcoming adhesive occlusion among friction couples and the like.

A balancing type adjusting valve comprises a valve body, a valve seat, an adjusting sleeve, a piston type adjusting valve element, a pressing ring, a lifting shaft, a bonnet and a hand wheel, wherein the bonnet is hermetically connected to the upper end of the valve body; the hand wheel is arranged at the upper end of the lifting shaft; the valve body is provided with a longitudinal medium inlet and a transverse medium outlet; the medium inlet is connected with the medium outlet via a valve cavity in the valve body; the valve seat, the adjusting sleeve, the adjusting valve element and the pressing ring are arranged in the valve cavity; the valve seat is connected to the bottom of the valve cavity; the adjusting sleeve is connected to the upper end of the valve seat; the adjusting valve element is arranged in the adjusting sleeve and corresponds to the valve seat; a plurality of through holes are uniformly formed in a side wall of the adjusting sleeve and at different heights; the pressing ring is arranged between the bonnet and the adjusting sleeve; the adjusting valve element is provided with a balancing hole; a cavity is formed among the bonnet, the pressing ring and the adjusting valve element; the medium inlet is connected with the cavity through the balancing hole; and the lower end of the lifting shaft is connected with the adjusting valve element. The balancing type adjusting valve is reasonable in structure and easy to assemble; the valve is opened easily; the vibration noise of the valve element is small; and the sealing performance is reliable.

The present invention discloses a engine mute return chain including chain pieces chained in series and dowel used to connect each chain piece; each segment of chain is combined by chain piece in parallel and each chain piece of adjacent chains interleaving embedded and connected by the dowels; involutes sprocket is provided on the inner side of the chain piece; the chain is embedded in the rubber belts with the rubber belts in a whole; flank of tooth of the sprocket in same level with gear form of the rubber belts; cord yarn is provided on external side of the chain inside rubber belts. The material of rubber belts adopts NBR or fluorubber. Because the chain and the rubber belts are made as a whole, noise can be reduced, and the invention is in long service life without easy stretch and fracture.

The invention relates to the technical field of socket switch pedestal assembling, and particularly relates to full-automatic socket switch pedestal assembling equipment comprising a rack and a pedestal loading device, a first pole piece loading device, a second pole piece loading device, a resistor loading device, a bending device and an assembling line which are arranged on the rack. One end ofthe assembling line and the first pole piece loading device pass through the first pole piece loading device, the second pole piece loading device, the resistor loading device and the bending device in turn. One end, which is back to the pedestal loading device, of the assembling line is connected with a material discharge device. The full-automatic socket switch pedestal assembling equipment is high in working efficiency, economical in labor and high in degree of automation.

A gearshift operation device for a tiltable cab over type truck comprises a shift lever placed at an instrument panel, and a select cable and a shift cable which connect an operation lever unit for the shift lever and a manual transmission. After coming out of a cab, the cables curve to pass close by a hinge pivot which supports the cab, and extend toward the manual transmission.

A vehicle power matching system with a hydraulic mechanical continuously-variable transmission can automatically adjust the transmission ratio of the transmission according to driving intentions of drivers and changes of an external load so that a driving system can provide enough power when in a transient state; during the transient state, an engine works at an optimal economical curve, and accordingly the system performance can be optimal. The vehicle power matching system has the advantages that the engine always works under the working conditions of optimal power performance and optimal economy; infinitely variable speeds are achieved rapidly and stably under the conditions of the driving intentions of the drivers and the changes of the external load; during the process, vibration noise is small, the overshoot is small, and offset is eliminated as far as possible; and the vehicle power matching system can meet the transient state power performance requirements and steady state economy requirements when a vehicle runs.

The invention relates to an aerospace oxygenerator which comprises a case, a compressor, a distribution valve, a gas cylinder and two molecular sieves, wherein a bottom plate for packaging is arranged at the bottom of the case; a compression system box is arranged on the bottom plate; the compressor is supported in the compression system box; a gas inlet mechanism is arranged at the lower part of the front end face and/or the rear end face of the case, and communicated with the compressor by a gas inlet silencer; the compressor is connected with the two parallel molecular sieves by the distribution valve respectively; the two molecular sieves are connected with the gas cylinder by the distribution valve; the distribution valve is communicated with a gas outlet silencer; the gas outlet silencer is communicated with the compression system box; and the compression system box is communicated with an exhaust mechanism arranged at the lower part of the left side face and/or the right side face of the case. The aerospace oxygenerator is compact in structure, convenient, quick, stable and safe to use, easy to dismount and clean, and noise-free; the use comfort can be ensured effectively; and the service life can be prolonged.

The invention discloses a nodular cast iron fiber well lid. The nodular cast iron fiber well lid is composed of a lid plate and a well ring, wherein the lid plate is prepared by combining and machining a nodular cast iron integrated framework and steel fiber concrete; the upper and lower side surfaces of the nodular cast iron integrated well lid framework are filled with and completely wrapped by steel fiber concrete raw materials; a frame of the nodular cast iron integrated framework wraps the edge of the steel fiber concrete to form the lid plate; the well ring is formed by pouring the steel fiber concrete; the bonding force is quite high after the steel fiber concrete is poured into the nodular cast iron integrated well lid framework, so that the overall strength of the well lid is effectively guaranteed. The well ring is of a steel bar concrete structure, and the lid plate can be combined with the well ring without expanding agents. The contact portion of the lid plate and the well ring is the contact between concrete and nodular iron, and vibration noise can be effectively lowered.

The invention discloses an indoor air disinfecting and killing module for airborne virus epidemic prevention. The module is characterized in that the lower part of a module shell is provided with a machine body quick-mounting structure for quickly connecting a terminal, and the upper part of the module shell is provided with an air outlet protection structure. A protection net, a plasma generationdevice, a photocatalyst net film, a UVCLED array light source and an ultraviolet ion absorption net film are sequentially arranged between the machine body quick-mounting structure and the air outletprotection structure from bottom to top, and the plasma generation device and the UVCLED array light source are electrically connected with an electrical control box. Air sequentially passes throughthe protection net, the plasma generation device, the photocatalyst net film and the UVCLED array light source, is filtered by the ultraviolet ion absorption net film and then is exhausted. The moduleis high in single cycle efficiency, easy to deploy and controllable in cost, has higher inactivation efficiency on common airborne viruses such as 2019-nCov, can be directly deployed in an existing air purification system, is safe and efficient in sterilization process, does not cause secondary pollution, and effectively meets the urgent requirements of virus epidemic prevention and disinfectionand killing in air of hospitals, classrooms, shopping malls and families.

This invention is a kind of cylinder head with the integrated supporting bed. There is a pole hole in the supporting bed of the cylinder head body. The camshaft and the rocker are set on the pivot of the supporting bed which is connected to the intake and exhaust valve block in the cylinder head body by the rocker. The cylinder head is installed with the spark plug, and in the combination surface of the cylinder head is set with a cylinder head cover. The supporting bed is the integrated one in the cylinder head which is set with the shaft contacting groove and form the oil room in it. The top of the bed is the combination surface which is higher than the cylinder head which the wall is set with the oil access connected the pole hole and the oil room. The cylinder head has the good rigidity, the strength, so it can decrease the noise when using it and improve the lubricating effect between the camshaft and the rocker.

The invention relates to small kitchen appliances, in particular to a silent food processor. The processor comprises a cup body assembly, a base body which is arranged below the cup body assembly andused for supporting the cup body assembly, and a shell arranged on the outer side of the cup body assembly in a sleeving mode. The water cup is characterized in that the cup body assembly is positioned on the base body, a first shock absorption piece for isolating the cup body assembly from the base body is arranged between the cup body assembly and the base body, the cup body assembly is not in contact with the shell, and a cup opening of the cup body assembly floats relative to the shell. According to the food processor, the cup body assembly is isolated from the base body and does not makecontact with the shell, the cup opening of the cup body assembly floats relative to the shell, vibration energy generated in the working process of the food processor can be absorbed and converted, and noise generated in the working process can be greatly reduced.

There is provided a temperature-compensated crystal oscillator for reducing a voltage noise of a cubic function control voltage controlling an output frequency of an oscillation circuit.

A temperature-compensated crystal oscillator includes a quartz vibrator, an amplifier having an oscillation frequency controller, and a temperature compensation circuit of a crystal oscillation frequency, wherein a reference voltage for a compensation voltage of the temperature compensation circuit is generated using a forward voltage of a diode.

A vane rotary compressor includes a roller rotatably supported in a cylinder and including a plurality of vane slots formed along a circumferential direction with back pressure chambers formed at one end of each of the vane slots A plurality of vanes are slidably supported in the vane slots protruding toward an inner circumferential surface of the cylinder. A compression space formed by the vanes between the roller and the cylinder includes an inlet port and an outlet port formed at both sides of a contact point between the roller and the cylinder. A vane positioned between the inlet port and the outlet port is configured such that a front gap between a front surface of the vane and the inner circumferential surface of the cylinder is smaller than a rear gap between a rear surface of the vane and an inner surface of the back pressure chamber.

The present invention provides an adjustment method and an adjustment apparatus of the ICP ion source flame detection position. The adjustment method comprises: determining a detection region, determining an X-direction detection interval and a Y-direction detection interval according to the set voltage critical value, acquiring all detection points corresponding to the maximum X-direction detection voltage value, determining the optimal X-direction detection point through a dichotomie method, and determining the optimal Y-direction detection point by using the dichotomie method. According to the adjustment apparatus, the movements in the X direction and the Y direction are achieved through the stepping motor and the ball screw pair, the non-connecting ends of the stepping motor and the ball screw pair are respectively fixed on the sliding block of the guide rail sliding block pair and the rolling wheel, the X-direction ball screw pair and the Y-direction ball screw pair respectively form a threaded connection with the base, the photoelectric conversion module on the base receives the light of the filter to complete the photoelectric conversion, and the electrical signal is processed by the controller so as to control the stepping motor. According to the present invention, with the adjustment method and the adjustment apparatus, the adjustment of the optimal detection position can be rapidly achieved, and the characteristics of quick adjustment, accurate positioning and stable operation are provided.