51results about How to "Stop vibration" patented technology

There are provided a vibrator and an electronic device including the same, the vibrator including a housing having an internal space; a shaft included in the internal space; a vibrating part suspended in the internal space by elastic members at both ends thereof, including a magnetic field part, and having a bearing member slidably and movably installed on the shaft; and a coil generating vibrations of the vibrating part through electromagnetic interaction with the magnetic field part and provided on an outer peripheral surface of the shaft while facing the magnetic field part.

There are provided a vibrator and an electronic device including the same, the vibrator including a housing having an internal space; a shaft included in the internal space; a vibrating part suspended in the internal space by elastic members at both ends thereof, including a magnetic field part, and having a bearing member slidably and movably installed on the shaft; and a coil generating vibrations of the vibrating part through electromagnetic interaction with the magnetic field part and provided on an outer peripheral surface of the shaft while facing the magnetic field part.

A vibration generator includes a coil, a vibrating body, a spring, and a shaft. The coil is arranged to generate magnetic fields. The vibrating body includes a magnet and a weight. The vibrating body is arranged to be vibrated in a thrust direction by an interaction of magnetic fields generated from the magnet and magnetic fields generated from the coil. The spring is arranged to support the vibrating body at one thrust-direction side of the vibrating body. The shaft is extended in the thrust direction through the vibrating body. The shaft is arranged to allow the vibrating body to slide along the shaft in the thrust direction.

A multi-roller grinder is composed of grinding cavity with a central feeder and two discharge ports at both ends, at least two grinding rollers with central ring slot relative to said feeder, grinding roller driving mechanism, bidirectional material guiding unit, and pressurizing unit of said grinding rollers.

A low cost gas turbine combustor has main nozzles having a cylindrical central tube using an interior as an oil fuel path, a cylindrical outer tube disposed on an outermost periphery of the main nozzle, and a support tube disposed between the central tube and the outer tube, the central tube, the outer tube and the support tube each being formed independently. The support tube has such an internal diameter as to form a clearance becoming an insulating air layer between the support tube and an outer periphery of the central tube, and includes supporting portions formed on an axially upstream side and radially contacting an inner periphery of the outer tube groove portions formed along an axial direction between the supporting portions, and a cylindrical portion formed on an axially downstream side and having an external diameter equal to or smaller than an external diameter of the groove portions.

The invention relates to an elevator vibration reduction control method, system and device. When an elevator car runs, an acceleration signal of the elevator car in a vibration direction is acquired,the acceleration signal is converted into a current adjusting signal of a servo motor, and then the current adjusting signal is used for driving the servo motor to push a guide shoe roller on the elevator car to move in the vibration direction. Since the guide shoe roller is mounted on an elevator, rolls on fixed guide rails, and is pushed to move in the vibration direction when the elevator vibrates, the elevator car can be prevented from further moving in the vibration direction, then the vibration of the elevator car is reduced, and the running stability of the elevator is guaranteed.

A solenoid valve ( 30 ) is proposed here, the armature ( 28 , 27 ) of which is constructed in multiple parts, with an armature plate ( 28 ), an armature screw ( 27 ), which is guided in a slide ( 34 ). In order to avoid excessive vibrations of the armature plate (28) after the solenoid valve (30) is closed, a vibration damper (50) is arranged on the magnet armature (25). With this device, the instantaneous switching time required by the solenoid valve can be precisely maintained. This solenoid valve (30) is intended for fuel injection equipment with Common Rail.

A battery configured to be attached to a battery holder for use by a mobile robot comprising: a battery body encapsulating the battery; at least two electrical connectors protruding from the battery body; at least one fixing unit located on the battery body said fixing unit configured to fix the battery to the battery holder; at least two damping pins protruding from the battery body; and at least one battery communication component configured to transmit battery status data. A battery holder configured to hold the battery and at least one of storing, swapping and charging a battery.

A ventilation valve for a vehicle for letting air out of a vehicle interior includes a valve frame with at least one through opening, and at least one valve flap which is mounted on the valve frame and is adjustable between a closed position and an open position. The at least one valve flap closes the at least one through opening in the closed position and opens up the at least one through openingin the open position. Air escaping through the at least one through opening flows from an air inlet side to an air outlet side along a main flow direction. A wall bounding the at least one through opening is inclined into the air flow in such a manner that the through opening tapers in the main flow direction.

Feeder channel (1) for diluting fluid, such as for diluting water, which feeder channel is in connection with the headbox (10) of a paper machine and comprises one or more reservoir-type spaces (7), such as a chamber, for receiving diluting fluid, which space comprises one or more walls (4), and that an aperture (13) is formed in the reservoir-type space (7), via which aperture the diluting fluid can be conducted into the stock flow space (9) of the headbox, and that one or more shut-off / adjustment means (5), with which the flow of diluting fluid via the aforementioned aperture (13) can be adjusted, is fitted into the feeder channel (1), and that the shutoff / adjustment means (5) is a shut-off / adjustment means that can be moved in the longitudinal direction of an aperture that is in connection with the aperture (13) formed in the wall (4) of the reservoir-type space, and that in the shutoff / adjustment means (5) that is partly or wholly inside the aperture there are one or more cavities and / or recesses (6, 14), via which the flow of diluting fluid from the reservoir-type space (7) either directly or via an intermediate piece (11) into the stock flow space (9) can be adjusted by moving the shut-off / adjustment means (5) in the aperture (13), and that the shut-off / adjustment means (5) comprises a support surface or support surfaces (6''), which can rest on the inside surface (13') of the aperture (13) for preventing vibration of the adjustment means (5) caused by the flow of the diluting fluid at least during operation of the shut-off / adjustment means.

A cordless vibratory pile driver (“vibro”) may use one or more batteries to provide the requisite power. The cordless vibro may sit in a stand that also recharges the unit while it is in the stand when the device is not in use. The replaceable batteries are mounted as part of the suppressor housing on top of the housing that contains the eccentrics. The batteries are balanced on both sides to distribute the weight evenly. A small battery powered electric hydraulic pump sits in the suppressor housing to provide oil to open and close the jaws. A digital hand held remote control sends the necessary signals to the machine to open and close the jaw and to start and stop the vibration.

A hollow cylinder of a drum is equipped with a lug fixing structure for detachably attaching a lug thereto by using a lug fixing member, which projects externally from the hollow cylinder and engages with an engagement hole of the lug. Herein, the lug fixing member has a spacer by which the lug is spaced apart from the exterior circumferential surface of the hollow cylinder and would not come in direct contact with the hollow cylinder. Thus, it is possible not to prevent the hollow cylinder from vibrating during playing of a drum. In addition, the lug is turned over after released from the lug fixing member, which is thus prevented from being engaged with the engagement hole of the lug again. This guarantees rapid replacement of a drumhead because a human operator can easily release engagement between the lug and lug fixing member without performing troublesome operation.

Provided is an anti-thrust mushroom-shaped member (10) for axially supporting a rotor shaft (58) of a motor (50). The anti-thrust mushroom-shaped member has an end surface (12) on which an anti-thrustsurface (14) is formed. The anti-thrust surface (14) cooperates with a mating surface (60) of the motor (50) in a mounted state, and a groove (18) is formed on the center of the end surface (12) in the radial direction, and the groove is radially arranged in the anti-thrust surface (14), so that the anti-thrust surface (14) is configured in a circular ring, wherein the anti-thrust surface has aninclination angle (27) on a radial direction (19) relative to an imaginary plane (25) perpendicular to a rotor shaft (58). Also included is a motor (10) into which the anti-thrust mushroom-shaped member (10) is mounted.