18results about How to "Reduce mechanical noise" patented technology

The present application relates to scroll compressor technical field, specifically disclose a kind of scroll compressor and scroll tooth profile correction method.The scroll compressor includes: in static scroll and dynamic scroll compression process end, the first outer arc segment and the inner wall of dynamic scroll form first gap in the preset angle range of static scroll and dynamic scroll rotation, second outer arc segment and the inner wall of static scroll form second gap;In the process that static scroll and dynamic scroll exhaust, the third gap between first center head section and second inner arc segment, fourth gap between second center head section and first inner arc segment is formed.The scroll compressor in a certain angle range before gas compression end, the meshing gap of dynamic, static scroll starts from zero and increases, while reducing vibration noise, improve energy efficiency ratio, can solve the problem of tooth head correction arc starting position meshing interference, prolong the service life of the scroll compressor.

The utility model discloses a kind of shutter equipment of strong light self-adaptive processing, it is related to shutter system application field, including bearing plate, the top of bearing plate is rotatably connected with movable ring, the outside of movable ring is provided with outer gear ring, the inside of movable ring is provided with inner gear ring, the side of movable ring is rotatably connected with transmission gear, transmission gear and outer gear ring are mutually engaged, transmission gear is connected with driving device, the top of bearing plate is provided with shutter assembly.The utility model can avoid mutual impact between curtain by setting multiple shutter assembly stacks, reduce the noise when shutter system works, four groups of shutter assembly are stacked from top to bottom distribution, four groups of curtain in four groups of shutter assembly are evenly distributed with exposure hole as center, curtain can achieve the purpose of plugging exposure hole when moving, and because multiple curtain is at different horizontal height, multiple curtain will not impact each other, reduce the generation of mechanical noise when shutter system works.

The utility model relates to an improved two-section sliding rail which comprises an outer rail, an inner rail arranged in the outer rail and a ball assembly arranged between the outer rail and the inner rail, the length of an overlapping area formed by the inner rail and the outer rail after the inner rail is fully drawn out is matched with the length of the ball assembly, and a reinforcing mechanism is arranged in the overlapping area. A first positioning mechanism is arranged on the inner side of the outer end of the outer rail coinciding with the outer end of the coincidence area, a second positioning mechanism is arranged on the inner side of the inner end of the outer rail, a third positioning mechanism is arranged on the inner side of the outer rail between the first positioning mechanism and the second positioning mechanism, and the inner rail can be fully inserted into the outer rail. The sliding rail solves the problems that when the inner rail is drawn out of the outer rail, the overlapping area of the inner rail and the outer rail is small, the mechanical strength is not enough when the inner rail carries heavy load, and bending, deformation or sliding rail disengagement are prone to occurring in an existing short two-section sliding rail. The first hoop sleeve, the second hoop sleeve and the reinforcing plate are simple in structure, easy to assemble, low in cost and high in practicability.

This utility model provides an indoor unit for an air conditioner. The indoor unit includes a housing, multiple swing blades, and a drive device. A support frame is provided inside the housing, and an air outlet is provided on the housing. Multiple swing blades are disposed inside the housing and adjacent to the air outlet; the multiple swing blades are arranged sequentially and at intervals along the length of the air outlet on the support frame; each swing blade includes a fixed part and a movable part, the fixed part and the movable part are connected, the fixed part is located on the air inlet side of the movable part, the fixed part is fixedly set to the support frame, and the movable part is made of a flexible material. The drive device is configured to drive the movable part to swing relative to the fixed part, and is configured such that the swing direction of at least one movable part is different from the swing direction of the other movable parts. This utility model solves the problem of the single air supply mode of existing air conditioner indoor units, thereby improving the diversity of air supply modes, making the airflow of the air conditioner more natural, reducing the direct blowing sensation of the airflow, and improving the user experience.

This utility model discloses a high-efficiency heat dissipation device for servers, comprising a housing and an intake fan. The housing has an axially penetrating heat dissipation channel with an air inlet and an air outlet arranged opposite each other. The intake fan is disposed at the air inlet. The housing also includes at least one auxiliary air duct formed on the housing, with an auxiliary air inlet and an auxiliary air outlet arranged opposite each other. The auxiliary air outlet is connected to the heat dissipation channel, and the auxiliary air inlet and the air inlet are located on the same plane. Compared with traditional cooling fans, the high-efficiency heat dissipation device for servers provided by this application can achieve a greater cooling flow effect at the same motor speed, thus achieving efficient heat dissipation, while reducing mechanical noise generated by rotation at lower motor speeds.

The present application relates to the technical field of air extractor, particularly relates to a direct drive improvement device of oil pumping unit; including tower body, platform, driver, shaft coupling, drum, crown assembly, belt, oil pumping rod, counterweight box and liquid cooling mechanism, the liquid cooling mechanism includes motor shell cooler, the platform is fixedly arranged on the top of the tower body, the driver, crown assembly and motor shell cooler are all fixedly arranged on the platform, the drum is rotatably arranged on the platform and located on one side of the driver, the driver and drum are drivingly connected through the shaft coupling, the crown assembly is located on one side of the driver, shaft coupling and drum, the belt is slidably arranged on the drum and crown assembly, the oil pumping rod and counterweight box are respectively fixedly arranged at two ends of the belt, the oil pumping rod is located on one side of the tower body, and the counterweight box is located below the platform; energy consumption is significantly reduced, frequent maintenance is not needed, and mechanical noise of the traditional reduction gearbox is eliminated.

The utility model relates to air compression equipment technical field, specifically disclose an integrated air compressor and air suspension system, wherein integrated air compressor includes drive motor, air compression unit and solenoid valve group, the one end of motor shaft of drive motor is connected the crankshaft of air compression unit, to make air compression unit operation compressed air, air compression unit includes two piston unit bodies, and piston unit body all includes cylinder, reciprocating motion along the piston of cylinder and one end connecting piston connecting rod, the other end of connecting rod rotatoryly arranged on the crankshaft, and the phase angle of two pistons is 180 degrees apart to offset inertial force, solenoid valve group is arranged in the valve block with air compression unit gas circuit connection, and the valve block has gas passage for forming gas circuit, and the air after air compression unit compression is distributed by solenoid valve group via gas passage, the utility model effectively reduces air compressor noise and compact structure.

The utility model discloses an electric heating warmer of noise reduction, and the device includes: the warmer shell, be equipped with electric heating element in the warmer shell, electric heating element one side is equipped with fan assembly, the warmer shell is located in one end of fan assembly and is equipped with the air outlet, the warmer shell is located in the opposite end of air outlet and is equipped with the air inlet, the air outlet and air inlet all are equipped with the sound absorption cotton layer and honeycomb formula sound attenuation grid, the inner wall of warmer shell is equipped with the corrugated flow groove. The utility model has the advantages of: the sound absorption cotton layer and honeycomb formula sound attenuation grid that the air outlet and air inlet set, form double -deck sound attenuation structure, effectively reduce the mechanical noise that fan assembly generates and the wind noise that the airflow passes the air hole forms, the corrugated flow groove of warmer shell inner wall changes the airflow direction, breaks the regularity fluctuation of airflow, reduces the vortex generation, further weakens the wind noise and the resonance sound of internal element.

This application relates to a top-blown vaporizer, applied in the field of vaporizers. It includes a vaporizer body with a plurality of heat exchange tubes forming a heat exchange channel. A mounting frame is mounted on the vaporizer body, and a first damping pad is mounted on the mounting frame. A fan is mounted on the first damping pad, with the fan's outlet corresponding to the heat exchange channel. The technical advantages of this application are: the first damping pad absorbs the high-frequency vibrations generated during fan operation, reducing the possibility of vibrations being directly transmitted to the mounting frame and vaporizer body, reducing resonance between the fan and the mounting frame, improving the overall stability of the vaporizer body, and simultaneously reducing the possibility of high-frequency vibrations being transmitted and amplified through rigid connections during fan operation, thus reducing mechanical noise generated by fan vibration.

The utility model discloses a lubricating oil filling production line which comprises a tank conveying mechanism, a tank discharging mechanism, a filling mechanism and a transferring mechanism. The tank conveying mechanism comprises a first conveying belt used for conveying empty oil tanks. The tank discharging mechanism comprises a second conveying belt which is relatively parallel to the first conveying belt, and the second conveying belt is used for conveying an oil tank filled with oil; the filling mechanism is arranged between the first conveying belt and the second conveying belt and comprises a weighing table, a lifting frame arranged above the weighing table, a filling air cylinder driving the lifting frame to ascend and descend and a filling pipe arranged on the lifting frame. The transfer mechanism comprises a push rod and a driving assembly, and the driving assembly is used for driving the push rod to push the empty oil tank from the first conveying belt to the weighing table and then driving the push rod to push the oil tank filled with oil from the weighing table to the second conveying belt after the oil tank is filled with oil. Therefore, the conveying layout can be optimized, the oil tank transferring efficiency is improved, automatic filling is achieved, and the production efficiency and the operation reliability are improved.

This invention discloses a silent, low-flow sampling pump and sampling method based on magnetic drive. A permanent magnet piston assembly is located in the center of the pump chamber, dividing the pump chamber into first and second air passage chambers. The permanent magnet is axially magnetized, and an electromagnetic coil is wound around each end of the pump chamber. A first inlet valve and a first outlet valve are located at the end of the pump chamber near the first air passage chamber, and a second inlet valve and a second outlet valve are located at the end near the second air passage chamber. Both the first and second inlet valves are connected to the sampling bottle, and both the first and second outlet valves are connected to the outside environment. An STM32 integrated H-bridge module is connected to the electromagnetic coils via control lines and to an ultrasonic position sensor via signal lines. The use of magnetic non-contact drive fundamentally reduces mechanical noise, precisely adjusts the current waveform of the electromagnetic coil, and directly controls the displacement and frequency of the permanent magnet piston assembly, avoiding backlash and hysteresis in sliding transmission. This method is particularly suitable for low-flow, precise sampling.

The application relates to the technical field of permanent magnet motors, in particular to a low-noise underwater permanent magnet motor combined structure which comprises a permanent magnet motor body, the permanent magnet motor body is composed of a motor shell, an inner motor body and a ball bearing seat, a loading structure is arranged in the motor shell, an oil storage cylinder and a heating device for preheating the oil storage cylinder are arranged in the loading structure; a centrifugal adjusting mechanism for adjusting the oil storage cylinder is arranged on a mounting plate, the mounting plate is further provided with a guide structure for supporting the oil storage cylinder; a stirring structure is arranged between the oil storage cylinder and a guide rod, and a transmission structure is arranged between a driving motor and a rotating shaft. The application has the advantages of compact structure and non-contact heating, the non-contact heating mode based on magnetic force avoids direct contact and abrasion problems possibly existing in a traditional heating mode, effectively reduces safety hazards, and ensures normal operation of the motor in extremely cold weather.

The invention relates to an electromagnetic valve in the technical field of electromagnetic valves, which comprises a valve body, the valve body is provided with a first channel and a second channel which are communicated with the outside, and the first channel and the second channel are connected through a valve mechanism. The valve mechanism comprises a valve element used for blocking the first channel and an electromagnetic structure used for driving the valve element to move. In the driving direction perpendicular to the electromagnetic structure, the electromagnetic structure, the first channel and the second channel are located in the same horizontal area. According to the electromagnetic valve, the electromagnetic structure, the first channel and the second channel are arranged in the same horizontal area in a staggered mode, and the overall thickness of the electromagnetic valve is obviously reduced. By means of the design, the problem that in the prior art, the overall thickness of the electromagnetic valve is increased due to electromagnetic structure layout is solved, the valve is opened and closed in the mode that the elastic piece drives the plug to swing, mechanical friction and abrasion are avoided, mechanical noise is reduced, the service life of the electromagnetic valve is prolonged, and the stability of the electromagnetic valve is improved.

This utility model relates to the field of milk tea machine technology and discloses a milk tea machine with precise ingredient dispensing, including a machine body. A cover is threadedly connected to the top of the machine body. During use, because bevel gear three meshes with bevel gear one and bevel gear two simultaneously, its rotational power is diverted and transmitted to the inner and outer rotating rods, with bevel gear one and bevel gear two rotating in opposite directions. This reverse linkage structure causes the two sets of stirring blades to rotate in opposite directions, forming a three-dimensional shear flow field, which improves the mixing efficiency of raw materials and avoids material stratification caused by unidirectional stirring. Furthermore, the radial centrifugal forces generated by the inner and outer rotating rods at high speed are equal in magnitude and opposite in direction. The torque vectors formed by the two cancel each other out within the machine body, significantly reducing the periodic vibrations generated by traditional single-axis stirring. This not only reduces mechanical noise but also provides a reliable mechanical foundation for the milk tea machine.

This invention proposes a seed metering chamber that directly drives the seed disc rotation using an axial flux motor, belonging to the field of agricultural machinery technology. It solves the shortcomings of existing seed metering mechanisms, such as reliance on mechanical shaft transmission, long transmission chains, poor transmission stability during operation, and high noise levels. In this invention, housings A and B are interconnected to form a seed metering cavity, with the seed disc disposed inside the cavity. A top seed wheel is located inside housing A and on one side of the seed disc, adjacent to the seed disc to form a seed metering structure. An axial flux motor is disposed on one side of housing B, with its output end facing the seed metering cavity and connected to the seed disc. The output end of the axial flux motor has a protruding structure, and the seed disc has a corresponding groove structure. The protruding structure is embedded in the groove structure to drive the seed disc to rotate. This invention is applicable to precision seeding operations in agricultural seeding equipment for quantitative separation and stable seed discharge.

This utility model relates to a head massager, comprising a shell and a rear shell. A massage assembly is located at the front of the shell, and an essential oil assembly is located in the middle of the massage assembly. A light panel assembly, a drive assembly, a circuit board, and a rechargeable battery are located at the rear of the shell. The massage assembly includes multiple sets of massage rods spaced apart from each other, a flexible cover, a support, a swing seat, and a track gear composite component. The front of the swing seat is fastened to the rear of the massage rod. A spherical massage head is located at the front end of the massage rod, and a ball is located at the rear of the swing seat. This ball slides in a slide rail and simultaneously swings radially with the slide rail. Each set of massage rods is an integrated structure, molded together in a silicone mold used for producing the flexible cover, saving assembly time and improving work efficiency. The spherical massage head at the front end of the massage rod effectively prevents tingling sensation on the head during massage. The entire product is fully sealed, improving waterproofing and reducing mechanical noise. This design is compact, portable, and easy to carry.

This utility model discloses a piezoelectric driven gimbal, including a base, a Y-axis rotating device rotatably connected to the base, and an X-axis rotating device rotatably connected to the Y-axis rotating device. The Y-axis rotating device can rotate along the Y-axis under the drive of the Y-axis piezoelectric drive mechanism, and the X-axis rotating device can rotate with the Y-axis rotating device and can rotate along the X-axis under the drive of the X-axis piezoelectric drive mechanism. The Y-axis rotating device includes a bracket, which is fixed to the outer ring of the Y-axis bearing by connector I, and the base is fixed to the inner ring of the Y-axis bearing by connector II. The X-axis rotating device includes a carrier for assembling a camera module, which is fixed to the outer ring of the X-axis bearing A by connector III, and the bracket is fixed to the inner ring of the X-axis bearing by connector IV. This utility model increases the driving force of the piezoelectric drive mechanism by increasing the torque, thereby avoiding jamming caused by insufficient torque.

The utility model relates to a reeling device, in particular to a noise reduction type high-speed reeling device. The noise reduction type high-speed yarn reeling device comprises a frame, a controller, a cabin door, sound insulation cotton, an electric push rod and the like, the whole structure is formed by the frame, the controller is installed on the lower portion of the front side of the frame, the cabin door is connected to the frame in a rotating mode, the cabin door shields a working area in the whole frame, the sound insulation cotton is attached to the inner layer of the cabin door, and the electric push rod is arranged on the inner layer of the cabin door. Electric push rods are obliquely installed on the left side and the right side in the frame. Through the combination of the closed sound insulation structure, the sound absorption material and the damping spring, mechanical noise is greatly reduced, meanwhile, yarn friction sound is eliminated through the ceramic yarn guide component, double protection of mechanical noise reduction and material noise reduction is achieved, the core pain point that a traditional yarn reeling machine is large in noise is overcome, and the noise reduction effect is good. And a quiet, stable and easy-to-maintain production solution is provided for the textile industry.