22 results about "Rotational oscillation" patented technology

A spreader system includes two spreader rotors configured to rotate about upright rotation axes and to eject residue crop material centrally between the rotors in a direction tangential to the rotors. The spreader system further includes a first structure that is configured to undergo an oscillating movement, such as a rotating oscillation about a central axis oriented in the tangential direction. The spreader system further includes adjustable deflector blades. The first structure can be a main deflector having main deflector blades, wherein the adjustable deflector blades are parallel to the main deflector blades and adjustable by a translation relative to the main deflector blades in an upward or downward direction, to thereby influence a gap between the main deflector and a lower plane of the rotors. The adjustable blades may be each pivotable relative to a frame so that their angular position can be set to one of several positions.

Eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, wherein the power train consists essentially of a one-piece rotational body, which has multiple weakening recesses, which interrupt its outer circumferential jacket surface more than only insignificantly and which provide it with that reversible elasticity, which it requires in order to rotate about an axis of rotation, which curves in a periodically recurring manner at least in sections.

The present invention discloses a ball probe ultrasonic bone removal device that is designed to assist surgeons with foraminotomy procedures. The device comprises a shaft at a first end of the device and a spherical ball tip at a second end of the device. In between the shaft and the ball tip is a foot piece that connects to the shaft through an angle. On the foot piece, serrations or a coarse surface cover a portion of the circumference of the foot piece. In some embodiments, serrations or a coarse surface may also cover a portion of the circumference of the shaft. The spherical ball tip is smooth and designed to cause no damage to the sensitive nerves and tissue in the intervertebral foramina, but the surface with the serrations or the coarse protrusions are designed to remove bone and tissue under ultrasonic movement (e.g., vertical vibration, rotational oscillation).

A rotation rate sensor and a method for operating a rotation rate sensor with a substrate and a double rotor are proposed, wherein the substrate has a principal extension plane with an X-direction and a Y-direction perpendicular to it, wherein the double rotor has a first rotor and a second rotor, each elastically connected to the substrate via a suspension by means of one of the first spring elements and elastically connected to each other such that the two rotors can be excited to antiphase rotational oscillations, wherein the axes of rotation of the rotors each run parallel to a Z-direction perpendicular to the principal extension plane of the substrate, wherein the first rotor is elastically connected to a first seismic mass and a second seismic mass, and wherein the second rotor is elastically connected to a third seismic mass and a fourth seismic mass.wherein the first seismic mass is connected to the third seismic mass via a first rocker element by means of one of the fourth spring elements, wherein the second seismic mass is connected to the fourth seismic mass via a second rocker element by means of another of the fourth spring elements, wherein each of the first spring elements has a first spring constant in the Y-direction, and wherein each of the fourth spring elements has a fourth spring constant in the Y-direction.

Oscillatingly driven machine tool with a housing (12) in which a motor (26), a tool spindle (18) with a tool holder (31) for fastening a tool (20), and an oscillation drive (36) are accommodated, wherein the oscillation drive (36) is driven by the motor (26) and is coupled to the tool spindle (18) for the rotationally oscillating drive about its longitudinal axis (19), and with at least one controllable actuator (44, 46, 48, 50) in order to superimpose at least one movement component on the rotational oscillation movement of the tool spindle.

A linkage mechanism that allows for easy sealing enables simultaneous rotation and oscillating motion. [Solution] The system comprises a first rotor 3 rotatable around a main rotation axis ax1, a bracket 4 rotatable with the first rotor 3, a swing arm 5 supported by the bracket 4 so as to swing around a swing axis ax2, a second rotor 6 rotatable independently of the first rotor 3 around the main rotation axis ax1, a drive link 7 rotatable with the second rotor 6, and an intermediate link 8 whose base end 8a is supported by the drive link 7 so as to be rotatable around a drive link axis ax3 passing through the rotating portion 7a of the drive link 7, and whose tip 8b is supported by the swing arm 5 so as to be rotatable around a driven link axis ax4 passing through the swing portion 5b of the swing arm 5, wherein the main rotation axis ax1, swing axis ax2, drive link axis ax3, and driven link axis ax4 intersect at a single point P0 in space.

The utility model discloses an oscillator convenient for maintenance, which relates to the oscillator field, and comprises a housing, a fixed block is fixedly connected in the housing, a mounting plate is installed above the fixed block through a bolt, the mounting plate can be dismounted by dismounting the bolt, an oscillator is installed below the mounting plate, and the oscillator is connected with the fixed block through the bolt. The output end of the oscillator is fixedly connected with a rotating disc, the oscillator is started to drive the rotating disc to rotate, a tray is fixedly connected above the rotating disc, and the rotating disc drives the tray to rotate and oscillate. By arranging the fixing cylinder, a test tube is placed in the fixing cylinder, the fixing cylinder is pressed downwards to extrude a clamping plate, the clamping plate clamps the test tube, a rubber gasket can increase friction force, fixing is firmer, then the test tube is rotated, a limiting rod is clamped to the short side of a limiting groove, and the test tube can be fixed to the upper portion of the tray. The test tubes are prevented from being thrown out of the tray during oscillation.

The invention relates to a vibration motor (1), in particular for a timepiece movement, comprising a rotor (2) equipped with a magnet (32), and a stator (3) equipped with at least one coil (31) capable of actuating the rotor (2) in rotation, the rotor (2) being rotated by the at least one coil (31) when the rotor (2) is actuated by the at least one coil (31). The rotor (2) rotates relative to the stator (3) and oscillates between two limit positions, characterized in that the vibration motor comprises an elastic reset device for resetting the rotor between the two limit positions and an intermediate rest position when the rotor (2) is no longer actuated by the coil (31); the vibration motor (1) generates each step by means of a rotational oscillating movement of the rotor (2).

The invention relates to a three-axis rotational speed sensor comprising a substrate and a dual rotor, which has a first and a second rotor (1, 2) which are elastically connected to each other via a first coupling element (8) such that the two rotors (1, 2) can be excited to generate counter-phase rotational oscillations, the first rotor (1) having a first and a second seismic mass (3, 4) which can be deflected relative to the first rotor (1), and the second rotor (2) having a second coupling element (8) which can be deflected relative to the first rotor (1). The second rotor (2) has a third and a fourth vibration mass (5, 6) which can be deflected relative to the second rotor (2), the first mass (3) being connected to the third mass (5) via a first oscillating bar element (9) in such a way that the third mass (5) is deflected in the opposite direction to the lateral deflection of the first mass (3) when the first mass (3) is deflected laterally, and the second mass (4) being connected to the fourth mass (6) via a second oscillating bar element (9 ') in such a way that the second mass (4) is deflected in the opposite direction to the lateral deflection of the first mass (3) when the first mass (3) is deflected laterally. When the second mass (4) is laterally deflected, the fourth mass (6) is deflected in a direction opposite to the lateral deflection of the second mass (4).

The present application relates to an adjustable spreader system for an agricultural harvester. The spreader system includes two spreader rotors configured to rotate about a vertical rotation axis and discharge crop residue material centrally between the rotors in a tangential direction to the rotors; a first structural member configured for oscillatory motion, such as rotational oscillation about a central axis oriented in the tangential direction; and adjustable deflector blades. The adjustable deflector blades are adjustable and movable to any one of a plurality of stationary positions relative to the first structural member. The first structural member may be a main deflector having a main deflector blade, the adjustable deflector blade being parallel to the main deflector blade and adjustable by translating upward or downward relative to the main deflector blade to affect the gap between the main deflector and a lower plane of the spreader rotor. According to another embodiment, each of the adjustable deflector blades is pivotable relative to a frame so that its angular position relative to the frame can be set to any one of a plurality of positions.

This invention belongs to the field of pipe shrinking technology, and particularly relates to a pipe shrinking mechanism and a shrinking machine, comprising: a support component, at least three oscillating components connected to the support component, each oscillating component having an oscillating axis fixed relative to the support component, one end of each oscillating component being a compression portion, the compression portions of each oscillating component forming a compression port, and a driving mechanism for driving each oscillating component to oscillate around the oscillating axis, thereby gradually shrinking the compression port and compressing the opening of the pipe; through the oscillating component's rotational oscillation shrinking method, the compression port formed between the oscillating components can provide torsional force to the shrunken section of the pipe during shrinking by rotating and contracting, causing the transition section between the shrunken and unshrunken sections of the pipe to twist, avoiding the formation of a bulge higher than the uncompressed pipe wall during deformation of the shrunken section, thus facilitating subsequent pipe processing.

A regulating member (10) for a horological movement including a balance, a balance spring including a flexible strip (2) coiled on itself in several turns, the strip (2) having a predefined rigidity to enable the balance to perform a rotary oscillatory movement, the strip including an outer end (9). The regulating member (10) includes a resilient device for compensating the direction of gravity with respect to the regulating member (10), the resilient device adapting its stiffness according to gravity to compensate for the effect of gravity on the regulating member, the resilient device including a resilient element (5) connecting the outer end (9) to a first non-movable support (7) with respect to the horological movement, as well as prestressing means (6) for applying a variable force or torque on the resilient element (5) according to the direction of gravity with respect to the regulating member (10).

A vibration motor (1), in particular for a horology movement, the motor (1) including a rotor (2) fitted with a magnet, a stator (3) fitted with at least one coil enabling the rotation of the rotor (2) to be actuated, the rotor (2) being rotationally mobile relative to the stator (3) by oscillation between two end positions, when it is actuated by the coil, and including resilient means for returning the rotor (2) between the end positions and an intermediate locked position, when the rotor (2) is no longer actuated by the coil, the motor (1) functioning by a rotationally oscillating movement of the rotor (2) to generate each step.

A regulating member (1) for a horological movement including an oscillating weight, for example a balance, and a balance spring including a flexible strip (2) wound about itself in a plurality of turns, the strip (2) having a predefined rigidity to allow the oscillating weight to undergo a rotary oscillatory motion, the strip (2) including an outer end (9), wherein the regulating member (1, 10) includes a temperature-compensating resilient device configured to adapt the stiffness thereof as a function of the temperature to compensate for the effect of temperature on the regulating member (1, 10), the resilient device including a resilient element (5) connecting the outer end (9) to a first support (7) that is stationary relative to the horological movement, as well as preloading means (6) for applying a variable force or torque to the resilient element (5) as a function of the temperature.

The invention relates to a MEMS sensor component having a substrate with a substrate surface, a first rotor mass and two first drive elements, which are coupled to the first rotor mass by first drive coupling structures and are designed to place the first rotor mass in a first rotational oscillation about a first rotational axis, which is oriented perpendicular to the substrate surface. The first rotor mass and / or the first drive coupling structures are designed in such a way that, when a rotational rate acts on the MEMS sensor component, a first tumbling motion of the first rotor mass about a first tumbling axis, which is oriented parallel to the substrate surface, is promoted and a second tumbling motion of the first rotor mass about a second tumbling axis, which is oriented perpendicular to the first tumbling axis, is suppressed. Furthermore, the invention relates to a rotational rate sensor having such a MEMS sensor component.

Various embodiments of the present invention provide a strapping device configured to tension strap around a load and to join two areas of overlapping portions of the strap together via different types of rotation of a tensioning-and-sealing wheel (390). During a tensioning cycle, the tensioning-and-sealing wheel is periodically driven to rotate in one rotational direction to move one of the portions of strap over the other to tension the strap around the load. During a sealing cycle, the tensioning-and-sealing wheel is rotationally oscillated by a wheel actuator (370) in two opposing rotational directions to locally melt two areas of the overlapping strap portions to join them together. The wheel actuator is operably connected to the tensioning-and-sealing wheel via a planetary gearing.

A method operates a hand-guided working apparatus having a movable working tool installation, a shaft, and a drive motor system. The shaft is designed for moving the working tool installation. The drive motor system is designed for driving the shaft. The working tool installation, the shaft, and the drive motor system at least in part form part of a system capable of rotational oscillation. A controllable oscillation damping installation is designed for damping and / or reducing an excitation of at least one oscillation of the system capable of rotational oscillation and / or excitable by the system capable of rotational oscillation. The method includes: operating the drive motor system to drive the shaft for moving the working tool installation; and controlling the oscillation damping installation during operation such that the oscillation is at least damped and / or an excitation of the oscillation is reduced.

This invention discloses a method for refining molten steel using vibration stirring and a ladle car vibration stirring device, relating to the field of metal smelting technology. The method includes controlling the ladle car to reciprocate along a transfer track to cause the molten steel inside the ladle to oscillate back and forth along the Y-axis, and controlling the ladle saddle of the ladle car to reciprocate relative to the car frame to cause the molten steel to oscillate back and forth along the X-axis; and / or controlling the ladle car to rotate around the Z-axis to cause the molten steel to rotate and oscillate around the Z-axis. Using the reciprocating movement and / or rotational movement of the ladle saddle as external excitation, the molten steel inside the ladle undergoes forced vibration, thereby stirring and mixing the molten steel. This results in less temperature loss, lower energy consumption, and higher refined steel quality.

The present invention relates to a powered surgical tool that selectively provides rotational oscillations to a tool head (effector) to effect tissue modification during a surgical procedure. The present invention also relates to cutting tools and tissue modification tools that operate to modify tissue when rotated in either or both directions about the longitudinal axis of the tool. The present surgical tool and cutting tools are effective to modify selective tissues while selectively preventing the modification of other tissues. For example, hard tissue, like bone, may be modified while soft tissue is not modified, or soft tissue may be modified without modification to hard tissue.

The present invention relates to a powered surgical tool that selectively provides rotational oscillations to a tool head (effector) to effect tissue modification during a surgical procedure. The present invention also relates to cutting tools and tissue modification tools that operate to modify tissue when rotated in either or both directions about the longitudinal axis of the tool. The present surgical tool and cutting tools are effective to modify selective tissues while selectively preventing the modification of other tissues. For example, hard tissue, like bone, may be modified while soft tissue is not modified, or soft tissue may be modified without modification to hard tissue.