摘要:
The invention relates to a device for receiving work pieces to be balanced in a machine for performing an imbalance compensation having a bearing device (2) arranged on a machine frame for rotatable mounting of the work piece (3) around a bearing axis (L), wherein the bearing device (2) has at least one bearing block (10) having two bearing shells (18, 19) having differing diameter which lie adjacent to each other, crosswise to the bearing axis (L). The bearing block (10) is movable crosswise to the bearing axis (L) of the bearing device (2) to two bearing positions and another of the two bearing shells (18, 19) is aligned centrally to the bearing axis (L) in each of the two bearing positions.
摘要:
In einem Vermessungsgerät (1) mit einer Basis (2) zur Positionierung des Vermessungsgerätes (1) und einer Neigkomponente (4) mit einem optischen Strahlengang zur Vermessung eines Zieles ist die Neigkomponente (4) in einer gegenüber der Basis (2) bewegbaren Gierkomponente (3) anhand eines in zwei Kavitäten (10, 11) selbstzentrierend eingespannten Rotationskörper (9) radial und axial gelagert und gegenüber der Gierkomponente (3) drehbar.
摘要:
A compact and high-precision rotating shaft holding mechanism is provided which can be utilized for a device that requires a small amount of rotation. A rotating shaft holding mechanism includes a plurality of parallel spring links, each of the plurality of parallel spring links including: a movable side connected to a rotating shaft by a hinge at a connection point at a distance h radially away from a center of rotation of the rotating shaft; a plurality of deformable sides which are parallel to each other; hinges each of which connects one end of a corresponding one of the deformable sides to the movable side; and hinges each of which connects the other end of a corresponding one of the deformable sides to the stationary section, the effective length of each of the deformable sides being set to h to permit the rotating shaft, which is connected to the movable side by the hinge at the connecting point at the distance h radially away from the center of rotation of the rotating shaft, to rotate within a range of finite angles, the plurality of parallel spring links including at least two parallel spring links oriented in different directions. A rotational viscometer uses the rotating shaft holding mechanism.
摘要:
An inertial measurement unit comprises a mounting plate with an opening therethrough, and a sensor assembly disposed in the opening of the mounting plate. Upper and lower support shells having shell flanges are attached to upper and lower surfaces of the mounting plate. The upper and lower support shells surround the sensor assembly. A plurality of gas bearing pads each extends through apertures in the upper and lower support shells. Upper and lower gas plenums have plenum flanges attached to the shell flanges of the upper and lower support shells, with the upper and lower gas plenums surrounding the upper and lower support shells. Pressure relief valves are coupled to the plenum flanges of the upper and lower gas plenums. The gas bearing pads and the sensor assembly are separated by a gap when pressurized gas is fed into the upper and lower gas plenums, thereby creating a gas bearing that allows the sensor assembly to be freely suspended and rotated in all directions.
摘要:
Pièce mécanique pour applications horlogères ou microtechniques dans le domaine médical ou celui de l'industrie, comportant un roulement à billes à trois ou quatre points de contact, ledit roulement comportant : une pluralité de billes (5) en céramique ; au moins une bague interne (2) en céramique et au moins une bague externe (4) en céramique, lesdites bagues internes et externes définissant entre elles un chemin de roulement (50) pour lesdites billes (5) de manière à ce que chaque bille soit en contact lesdites bagues en trois ou quatre points, une douille externe (1) dans lequel est logée ladite bague externe.
摘要:
A shaft arrangement, with a rotatable shaft supported in a rolling bearing, which has rolling elements and an outer race, a torsion sensor having a permanently magnetic ring and at least one magnetic field sensor fastened to a fixed sensor bracket attached to the outer race being provided. A torsion sensor can hereby be integrated in a rotating bearing in a simple design.
摘要:
A control moment gyroscope (10) for providing directional control in a spacecraft. The control moment gyroscope has a rotor (50) which is electrostatically or magnetically supported within a gimbal housing (24) so as not to touch any of the interior surfaces of the housing. The housing is mounted on a gimbal support (14) which in turn is mounted on the spacecraft. Connected to the gimbal housing is a torque motor (12) which rotates the housing around a gimbal axis. In order to induce a direction changing torque on the spacecraft, the rotor (50) is first spun about its rotor axis. A torque is then induced on the rotor (50) about the output axis. This induced torque will cause the rotor (50) to precess about the gimbal axis which the torque motor follows. The torque induced around the output axis is transferred directly to the spacecraft.