11 results about "Rotational oscillation" patented technology

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.

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 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).

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 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.