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32results about How to "Little vibration" patented technology
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Fluid end
InactiveUS20110189040A1Reduce manufacturing costEasy to usePositive displacement pump componentsPositive-displacement liquid enginesPump chamberEngineering
A fluid end for a high-pressure pump including a metallic block having a front, back, top, bottom, and opposed sides. The block has a horizontal, plunger passage extending from the front to the back thereof. A horizontal, outlet passage extends from one of the opposed sides of the block to the other with the outlet passage being positioned beneath, and at right angles to, the plunger passage. A suction passage extends vertically downward from the top of the block and intersects the plunger passage to define a pumping chamber at the point of intersection. A discharge passage extends vertically downward from the pumping chamber to the bottom of the block. The discharge passage is located adjacent to the outlet passage. A connector passage extends from the discharge passage to the outlet passage so as to place the discharge passage and outlet passage in fluid communication. A reciprocating plunger assembly is located the end of the plunger passage adjacent the back of the block. A plug is located in the end of the plunger passage adjacent the front of the block. A suction valve is located in the suction passage. A discharge valve is located in the discharge passage. A fluid supply manifold is pivotally secured to the top of the block and is in fluid communication with the suction passage.
Owner:J MAC TOOL
Jigsaw
ActiveUS7350302B2Little vibrationImprove cutting performanceMetal sawing devicesGearingRotational axisClassical mechanics
Owner:KOKI HLDG CO LTD
Device for retaining optical components
ActiveUS20060103920A1Little vibrationLarge capture regionToothed gearingsPortable liftingEngineeringDetent
The invention relates to a device, such as a rotary disk (1) or a longitudinal slider (2), for retaining optical components, this device comprising open orifices (3) arranged next to one another, and a raceway (4) having detents (5) being provided in the direction of the arranged orifices (3), which detents are embodied in such a way that they are to be brought into click-stop engagement with a ball bearing (6) running along the raceway (4), in order to hold the device (1, 2) in a selected position. In order to enable gentle click-stopping of the ball bearing (6) with a wide capture region, it is proposed that the detents (5) have, in the running direction, a profile comprising a combination of two arc-shaped profiles (10, 11), such that an outer profile (11) of lesser curvature surrounds an inner profile of greater curvature (10).
Owner:LEICA MICROSYSTEMS CMS GMBH
Jigsaw
ActiveUS20070050994A1Easy dischargeWasteful frictionMetal sawing devicesGearingRotational axisClassical mechanics
An outer peripheral surface of a cam has an apex having a greatest distance from a rotational axis, a first region located on the side of the apex opposite to the direction of rotation and having an increasing distance from the rotational axis with the rotation thereof, and a second region located on the side of the apex in the rotational direction and having a decreasing distance from the rotational axis of the cam with the rotation thereof. The apex is disposed in a position where the phase 0 thereof advances by 15 degrees or more and 55 degrees or less in the rotational direction from a position symmetrical to a center of the pin with respect to the rotational axis. The rate of change in the distance between the second region and the rotational axis is set to be greater than the rate of change in the distance between the first region and the rotational axis. A retreat amount X when a saw blade reaches an uppermost point c from a foremost point is set to be 0.8 mm or more at a lower end of the saw blade.
Owner:HITACHI KOKI CO LTD
Brush holder for an electric-motor driven actuator and an electric-motor driven actuator
InactiveUS7230362B2Avoid large vibrationsSimple structureRotary current collectorSupports/enclosures/casingsActuatorElectric motor
An electric-motor driven actuator has a housing, in which a motor and a carrier plate are arranged and the carrier plate is connected in a fixed manner to a brush holder. The brush holder has a first brush holder which is rigidly connected to the carrier plate. A second brush holder component is also provided which is mechanically coupled to the first brush holder component and is decoupled in a vibration-neutralizing manner from the first brush holder component via at least one damping element and which holds brushes via which contact can be made with a commutator of the motor.
Owner:BROSE FAHRZEUGTEILE GMBH & CO KG HALLSTADT (DE)
Varnishing apparatus
InactiveUS20030159602A1Little vibrationSimple designAddressographsLetterpress printingPaper sheetEngineering
Owner:MANROLANAD AG
Multi-directional submersible floating aerator
ActiveUS20100109170A1Process stabilityImprove aeration efficiencyCarburetting airWater cleaningPropellerEngineering
A multi-direction submersible floating aerator has a gas-ring compressor (4), a base (6), a gas inlet tube (9), a seat (11), multiple submersible hollow shaft motors (13), and multiple propellers (14). The base (6) is disposed between the gas-ring compressor (4) and the gas inlet tube (9). The propeller (14) is coaxially connected to the submersible hollow shaft motor (13). The seat (11) is disposed between the gas inlet tube (9) and the submersible hollow shaft motor (13). The seat (11) is hollow. A first opening is disposed at the top of the seat (11), and multiple second openings are disposed on one side of the seat (11). The seat is (11) used for evenly distributing compressed air. Thus, the aeration is more even and stable, and aeration efficiency is greatly improved.
Owner:SUN SHULIN +1
System for driving brushless DC motor and method of driving same
ActiveUS20060066273A1High efficiencySmall vibrationTorque ripple controlAC motor controlStart timeMagnet
Disclosed is a brushless DC motor drive system comprising a pole-position detector for detecting respective pole positions of permanent magnets of a rotor of a brushless DC motor, a present speed computing means for computing present speed of the brushless DC motor on the basis of an output signal from the pole-position detector, a speed differential computing means for computing a difference between a speed command and the present speed, that is, a speed differential, an energization start time computing means for computing energization start time in a present instance on the basis of energization start time in a preceding instance, and the speed differential, an energization start instruction means for instructing energization start upon the elapse of the energization start time in the present instance from a phase changeover point in time, an energization completion time computing means for computing energization completion time by subtracting the energization start time in the present instance from preceding pulse time and an energization completion instruction means for instructing energization completion upon the elapse of the energization completion time from the phase changeover point in time.
Owner:JAPAN SERVO CO LTD
Stamping die for automobile interior plates
InactiveCN105598278ASimple structureEasy to useShaping toolsMetal-working feeding devicesMaterial resourcesEngineering
The invention discloses a stamping die for automobile interior plates. The stamping die comprises a lower die base. A plurality of supporting rods are arranged at the upper end of the lower die base. An upper die base is arranged at the upper ends, away from the lower die base, of the supporting rods. A first fixing base is arranged on the side, close to the lower die base, of the upper die base. A notch is formed in the side, close to the lower die base, of the first fixing base. Sliding rails are symmetrically arranged on the inner wall of the notch and vertically arrayed. A connecting block is arranged between the two sliding rails. A male die is arranged on the connecting block. A plurality of springs are arranged on the side, close to the upper die base, of the male die at equal intervals. A second fixing base is arranged at the upper end of the lower die base and located among the supporting rods. The stamping die is simple in structure, greatly lowers the requirement for the tonnage of a machine tool and reduces cost; besides, the machine tool hardly vibrates, and thus noise is reduced; the stamping die hardly vibrates and does not generate abnormal sounds, the service life of the male die and a female die is prolonged, the quality of the stamping die is improved, and manpower and material resources are saved.
Owner:TIANJIN BINHAI HIGH NEW DISTRICT WANGYUE TECH DEV CO LTD
Varnishing apparatus
InactiveUS6848362B2Little vibrationSimple designAddressographsLetterpress printingEngineeringPaper sheet
Owner:MANROLANAD AG
X-ray generator
ActiveUS20190074155A1Small torqueLittle vibrationX-ray tube electrodesX-ray tube cathode coolingNuclear engineeringX-ray generator
An X-ray generator comprising a target for receiving electrons and generating X-rays, a separator for dividing an internal space of the target into a coolant inflow path and a coolant outflow path, a motor for rotating the target, and a coolant inflow path and a coolant outflow path for supplying a coolant to the coolant inflow path and recovering the coolant through the coolant outflow path, wherein the separator rotates in the same rotation direction as the target when the target rotates. In the X-ray generator in which a coolant inflow path and a coolant outflow path are provided by a separator inside a rotating target, reduced torque load and reduced vibration can be realized.
Owner:RIGAKU CORP
Method and device for self-adaptive walking on steps
ActiveCN112158273BSo as not to damageImprove bearing capacityVehiclesSimulationStructural engineering
Owner:SOUTHEAST UNIV
System for driving brushless DC motor and method of driving same
ActiveUS7282876B2Improve efficiencyLittle vibrationTorque ripple controlMotor/generator/converter stoppersCurrent velocityCompletion time
Owner:JAPAN SERVO CO LTD
Drive unit, preferably an actuator, a control and a construction
InactiveUS7847494B2Lower acoustic noise levelLower Level RequirementsMotor/generator/converter stoppersMultiple dynamo-motor startersEngineeringConstant speed
In particular in articles of furniture having at least an element which may be adjusted with a DC motor, preferably via a mechanical transmission, it is desirable to have a level of acoustic noise as low as possible. The power supply to the DC motor is based on a transformer with rectification and smoothing. With the invention it has surprisingly been found that the level of acoustic noise may be reduced significantly in that the secondary side of the transformer has a first control to compensate for the loss in the motor, thereby keeping the speed thereof constant for a long period of time, and a second control adapted to remove the ripple in the voltage, thereby keeping the speed of the motor constant for a short period of time.
Owner:LINAK AS
Apparatus for measuring the stiffness of mailpieces
ActiveUS20190168264A1Little vibrationThickness variationMaterial strength using steady bending forcesSortingEngineeringMechanical engineering
Owner:SOLYSTIC
Electric double-blade slot cutting machine
InactiveUS20150202798A1Avoid large vibrationsImprove performancePortable power-driven toolsMetal working apparatusReciprocating motionElectric machinery
An electric double-blade slot cutting machine comprises a first cutting unit having a first cutting part and provided along a cutting route and presents a reciprocating movement; a second cutting unit having a second cutting part provided along the cutting route and presents the reciprocating movement, wherein moving directions of the first cutting unit and the second cutting unit is opposite while cutting; a restriction holder for restricting the first cutting unit and the second cutting unit to moving along the cutting route; a transmission unit; and a motor. With the foregoing structure, the electric double-blade slot cutting machine can work with small vibration and stable performances; a speed of the motor is increased for improving work efficiency; and with an extension rod, the electric double-blade slot cutting machine is adaptable for standing utilization.
Owner:HAMMER ELECTRIC POWER TOOLS
Punching die
The invention provides a punching die. The punching die comprises a male die and a female die. The female die is in a cylinder shape. An inner cavity of the female die is a punch travel cavity. The size of the male die is matched with the size of the inner cavity of the female die. The upper end face of the female die is provided with a raw material containing table. A feed mechanism is arranged on the side face of the upper end face of the female die. The feed mechanism and the containing table are horizontally arranged. A shearing face of the containing table on the upper end face of the female die is in a bent face shape. The punching die further comprises a sliding mechanism which is detachably connected with the bottom of the female die. The punching die has the advantages that shearing cotton yarn of the female die is designed into the bent face shape, the aims of conducting material force bearing step by step and conducting punching part by part are achieved, and the requirement for greatly reducing the machine tool tonnage is achieved; cost is saved, the machine tool vibration is not large, and noise is reduced; the die vibration is small, no abnormal sound is generated, the service life of the male die and the female die is prolonged, the quality of the die is improved, and manpower and material resources are reduced.
Owner:LIUZHOU SHUNLING AUTO PARTS
Step self-adaptive walking method and device
ActiveCN112158273ASo as not to damageImprove bearing capacityVehiclesControl engineeringRoad surface
The invention discloses a step self-adaptive walking method and device. The method comprises the steps of employing a vertical walking mode, replacing a conventional wheel with a plurality of walkingassemblies perpendicular to the base surface of a main bearing body, enabling the walking assemblies to support the main bearing body in a multi-point supporting mode, and enabling the base surface ofthe main bearing body to be always in a horizontal state; and the advancing state of the walking assemblies is completed by a central control unit in a unified and coordinated mode. The walking device mainly comprises a plurality of walking assemblies, the main bearing body and a central control unit, is simple in structure, large in load capacity and stable and reliable in operation, and is suitable for transportation of complex roads including steps, uneven road surfaces and the like under the application environment that the operation speed is not emphasized.
Owner:SOUTHEAST UNIV
Vibration damping type mechanical ammeter mounting bracket
InactiveCN108845171ALittle vibrationNot easy to damageTime integral measurementMechanical componentsEngineering
The invention discloses a vibration damping type mechanical ammeter mounting bracket. The vibration damping type mechanical ammeter mounting bracket is provided with three guide rails on the body. Each guide rail is provided with a slide block. The slide block is connected with the guide rail through an elastic rubber strip. Therefore vibration which is born by the mechanical ammeter which is mounted on a supporting plate is mostly absorbed by the elastic rubber strip. The vibration damping type mechanical ammeter mounting bracket has advantages of relatively slight ammeter body vibration, nolarge vibration of mechanical components in the ammeter body, no easy damage, long service life and relatively high measuring accuracy.
Owner:顾玲玲
Gearbox motor straight rotating device for electric motorcycle tricycle and driving method thereof
InactiveCN101758901BAvoid direct contactLittle vibrationWheel based transmissionRotary transmissionsElectric machineControl theory
Owner:邬振华
X-ray generator
ActiveUS10892134B2Small torqueLittle vibrationX-ray tube electrodesX-ray tube cathode coolingEngineeringMechanics
An X-ray generator comprising a target for receiving electrons and generating X-rays, a separator for dividing an internal space of the target into a coolant inflow path and a coolant outflow path, a motor for rotating the target, and a coolant inflow path and a coolant outflow path for supplying a coolant to the coolant inflow path and recovering the coolant through the coolant outflow path, wherein the separator rotates in the same rotation direction as the target when the target rotates. In the X-ray generator in which a coolant inflow path and a coolant outflow path are provided by a separator inside a rotating target, reduced torque load and reduced vibration can be realized.
Owner:RIGAKU CORP
Terrace foundation stamping tamper
The invention discloses a terrace foundation stamping tamper which comprises a rack, a power mechanism with a flywheel and a force-amplifying stamping mechanism, wherein the power mechanism and the force-amplifying stamping mechanism are arranged on the rack; the force-amplifying stamping mechanism comprises a connecting rod, a toggle rod I, a toggle rod II and a tamping body; the tamping body is positioned in a slide path which is perpendicularly arranged on the inner part of the rack; the inner wall of the slide path is provided with a guide wheel for guiding the tamping body to slide up and down along the slide path; the connecting rod, one end of the toggle rod I and one end of the toggle rod II are hinged together by virtue of a pin roll II; the other end of the connecting rod is hinged to a pin roll I of a flywheel outer edge; the other end of the toggle rod I is hinged on the rack positioned above the tamping body by virtue of a pin roll III; and the other end of the toggle rod II is hinged to the upper end of the tamping body by virtue of a pin roll IV. According to the terrace foundation stamping tamper, the tamping body can generate great stamping force on the terrace foundation by use of relatively small power, so that compactness of the foundation reaches required standards, and therefore, the constructed terrace does not sink and deform forever.
Owner:WEIFANG UNIV OF SCI & TECH
A stamping and compacting machine for floor foundation
Owner:WEIFANG UNIV OF SCI & TECH
Bearing member, housing, and bearing device using the same
ActiveUS20200149582A1Little vibrationDamage is causedConnecting rodsShaftsStructural engineeringMechanical engineering
A bearing member according to an embodiment of the present invention is formed into a single cylindrical shape or a cylindrical shape divided into arcs along a circumferential direction, and is assembled to a housing on an outer peripheral side of the bearing member. The bearing member includes an outer peripheral surface provided on a side opposed to an inner peripheral surface of the housing. A maximum height Rz (μm) of a surface roughness of the outer peripheral surface is set as 2.00 μm≤Rz≤4.00 μm, and a value of ratio between an average protruding-peak height Rpk (μm) and a load length rate Mr1 (%), that is a load curve parameter for the surface roughness is set as 0.010≤Rpk / Mr1≤0.100.
Owner:DAIDO METAL CO LTD
Apparatus for measuring the stiffness of mailpieces
ActiveUS10562073B2Little vibrationThickness variationMaterial strength using steady bending forcesSortingEngineeringStructural engineering
Owner:SOLYSTIC
Vortex type peanut amplitude peeling device
The invention discloses a vortex type peanut amplitude peeling device. The vortex type peanut amplitude peeling device comprises a rotary peanut dispersing mechanism for rotatably dispersing peanuts,a vortex type heating mechanism for heating and refrigerating the peanuts and an amplitude screening mechanism for removing peanut coats through vibration, wherein a plurality of supporting legs A arefixedly connected to the outer wall of the rotary peanut dispersing mechanism; and the vortex type heating mechanism is fixedly connected to the outer wall of the rotary peanut dispersing mechanism through the supporting legs A. A spiral plate is fixed to a rotary auger, and the rotary auger is closed, so that the peanuts spirally rotate in the spiral plate; a plurality of peanut grooves are formed in the spiral plate, and the peanut grooves have oblique angles towards the middle direction, and two sides of each peanut groove are high; when rotating on the peanut grooves, the peanuts continuously move towards the middle, so that the peanuts can be uniformly heated, dust on the peanuts can be well removed through rotation of the peanuts, and the effect of removing the peanut coats is achieved; and the rotating speed of the rotary auger is low, so that the peanuts are not liable to damage.
Owner:唐保祥
Coix seed winnowing equipment
The invention discloses coix seed winnowing equipment. The equipment comprises a base, wherein eight sliding limit columns are symmetrically arranged on the upper end of the base; two supporting seats are symmetrically arranged on upper ends of the eight sliding limit columns; spring dampers are respectively arranged between the supporting seats and the base; a machine body is arranged on upper ends of the two supporting seats jointly; an exhaust fan is clamped in the machine body; the upper end of the exhaust fan penetrates through the machine body; a hanging bar is arranged at the upper end of the exhaust fan; two fixing frames are symmetrically arranged on the machine body; a connecting block is arranged on the two fixing frames jointly; a moving seat is arranged on the two fixing frames jointly in a penetrating manner; the moving seat is in threaded connection a threaded rod; and the upper end of the threaded rod penetrates through the connecting block and is connected with a first motor arranged on the connecting block. The equipment disclosed by the invention has the advantages that the structure is stable; the vibration amplitude is small during work; the exhaust fan is conveniently taken out from the machine body to be maintained; a feeding door body is convenient to open and close; the time and the labor are saved; and the equipment is convenient for staff to operate and is worth popularizing.
Owner:GUIZHOU HUATENG AGRI TECH CO LTD
Roll Temporary Replacement Device for Continuous Rolling Mill
InactiveCN104741384BGuaranteed surface qualityReduce consumptionMetal rolling stand detailsGuiding/positioning/aligning arrangementsProduction lineEngineering
The invention discloses a temporary substitute device for rolls of a continuous rolling mill unit. The temporary substitute device comprises a lower roll table base, an upper guide and guard frame and a roll assembly. The lower roll table base is connected with the lower portion of the upper guide and guard frame, and the upper portion of the upper guide and guard frame is connected with the roll assembly. The lower roll table base comprises a transmission side base body and an operation side base body, and the transmission side base body and the operation side base body are connected through a steel plate. The distance between the inlet plane of the operation side base body and the outlet plane of the operation side base body is matched with the width of an operation side bearing pedestal of a rolling unit bottom working roll, and the distance between the inlet plane of the transmission side base body and the outlet plane of the transmission side base body is matched with the width of a transmission side bearing pedestal of the rolling unit bottom working roll. The temporary substitute device can improve the efficiency of a production line, guarantee the surface quality of rolled products and lower the consumption of the rolls, and is reasonable in structural design and convenient to install and use.
Owner:SHANDONG IRON & STEEL CO LTD
Jacking type stamping die
The invention discloses a jacking type stamping die. The jacking type stamping die comprises an upper die cover, a lower jacking die, a die removing layer, a punch, supporting arms, connecting rods, ejector pins and ejector assemblies. The upper die cover and the lower jacking die are arranged at the upper end and the lower end of the die removing layer. The punch is vertically arranged at the middle position of the upper die cover and downwards extends into the die removing layer. The supporting arms are arranged on the die removing layer and connected with the corresponding ejector assemblies through the corresponding connecting rods. The ejector assemblies are arranged in the lower jacking die. The ejector pins are vertically arranged in the die removing layer and downwards extend to beconnected with the corresponding ejector assemblies. In this way, the jacking type stamping die is provided with the ejector pins and the ejector assemblies, and the jacking type stamping die has theadvantages that the requirement for the tonnage of a machine tool is greatly lowered, the cost is saved, vibration is not large, noise is reduced, the die vibration is relatively small, no special sound is generated, the service life is prolonged, the quality of the die is improved, and the manpower and material resources are reduced.
Owner:JIANGSU ZEEN TOOLING
Pneumatic tire and tire wheel assembly
InactiveCN100379587CReduce reaction forceImprove mute effectInflatable tyresTyre tread bands/patternsEngineeringTread
The reduction of noise in the rotation of the tire and the improvement of resistance to hydroplaning are established and also the resistance to uneven wear is improved, in which four circumferential main grooves 2-5 are formed asymmetrically, and a sum of groove volume in a circumferential direction in lateral grooves formed in a shoulder land part row 7 as a portion of an axially inner side per unit width is made smaller than a sum of groove volume in the circumferential direction in lateral grooves 11 formed in a shoulder land part row 9 as a portion of an axially outer side and a land part row 6 in a central region is rendered into a rib, and slant grooves 13 extending at an average inclination angle of not less than 45 DEG with respect to a widthwise direction of the tread are arranged in a second inner land part row 8 located at a side of an equatorial line adjacent to the shoulder land part row 7 at the axially inner side and these slant grooves 13 are opened to the circumferential main groove located adjacent to the second inner land part row 8 of the axially inner side.
Owner:BRIDGESTONE CORP
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