Abstract:
An actuator comprising a reversible electric motor, which over a gearing, drives an activation element which can move back and forth. The activation element is of the non-self-locking type. Furthermore the motor and gearing are of a non self locking type. A brake holds the activation element in any position, when the electric motor is inactive, said brake can be released by means of a release mechanism. The motor is used as generator when the brake is released and the generator voltage from it is used to adjust the velocity of the activation element. Thus, a quick release is provided, where the activation element can be disengaged and adjusted evading gear and motor, and where the movement of the activation element, during the disengagement, occurs with a controlled velocity.
Abstract:
A cam device which can meet ecology requirements as a device structure mainly consisting of cams, is small in size while permitting the transmission of a high rotating torque, can achieve a high-speed operation, and is preferably applicable as base machines in various mechanical devices such as an APC device handling heavy-weight items. A cam device having an output shaft to be rotation-operated and lift-operated on receiving a rotation motion and a lift motion respectively output from a roller gear cam and a plate cam provided on a rotation-driven input shaft, wherein a turret that inputs a rotation motion output from the roller gear cam to the output shaft is integrally formed on the output shaft.
Abstract:
A constant power mechanical transmission with seamless, ripple free, infinitely variable torque multiplying outputs comprises an input shaft and an output shaft. The input shaft is coupled to a pair of oscillating levers whereby rotation of the input shaft causes oscillation of the oscillating levers in opposite directions. The oscillating levers are linked to the output shaft with one-way clutches in order to cause rotation of the shaft upon movement of the oscillating levers. The rotational speed of the output shaft can be infinitely varied by changing the throw of the oscillating levers.
Abstract:
A working tool, in particular a soil rammer (10) or a hammer, has two masses that may be linearly moved back and forth with respect to one another, namely a top mass which comprises a driving motor (20) and a ramming or striking working mass which can be moved by the motor (20) relative to the top mass by means of a crank drive (26, 28, 30) and a set of springs. In order to reduce as much as possible the displacement of the top mass, an additional counterweight (40) can be moved by the motor over at least a large part of the path of displacement of the working mass in the opposite direction thereto. The displacement of the end (34) of the set of springs linked to the crank drive and the displacement of the counterweight (40) are preferably offset relative to one another, with respect to the crank angle, by 180 DEG minus a phase shift derived from the construction parameters of the set of springs.
Abstract:
A gear box for a reciprocating kneader. A primary rotational gear is attached to a gear box primary shaft and rotates in concert therewith. A secondary rotational gear is engaged with the primary rotation gear and rotates therewith. A secondary shaft is attached to the secondary rotational gear and rotates therewith. A primary oscillation gear is attached to the gear box primary shaft and rotates therewith. A secondary oscillation gear is rotationally engaged with the primary oscillation gear and rotates on the secondary shaft. An eccentric is coupled to the secondary oscillation gear and rotates in concert therewith. A yoke is engaged with the eccentric and oscillates on an axis perpendicular to the secondary shaft in response to the lobe. The gearbox secondary shaft moves along its axis in concert with yoke oscillation. A housing is pivotally attached to the yoke and pivotally attached to a casing at a casing.
Abstract:
Bei einem Koaxialgetriebe, insbesondere Hohlwellengetriebe für die industrielle Antriebstechnik mit hoher Leistungsdichte, mit einem Antriebselement (7), einem Element (3) und einem Abtriebselement, wobei eine Übersetzung sowie eine Übertragung eines Antriebsmoments zwischen Antriebselement (7) und Abtriebselement über eine Mehrzahl von radialen bewegbaren Zahnsegmenten (5) erfolgt, soll eine äussere Zahnflankenkontur (11.1, 11.2) der Zahnkontur (6) der Zahnsegmente (5) und/oder eine Flanken-Kontur (12.1, 12.2) einer Verzahnung (13) einer Innenverzahnung (15) eines Hohlrads (1), bezogen auf eine Getriebeachse (M), eine Zahnkontur aufweisen, die einen Flächenkontakt im Eingriffsbereich ermöglicht, welcher durch die Ausführung als logarithmische Spirale erreicht wird.
Abstract:
Für eine auch als "Schleppschwinger" bezeichnete Bodenverdichtungsvorrichtung wird ein Schwingungserreger angegeben, bei dem zwei parallel angeordnete Unwuchtwellen (1, 2) jeweils eine feste (6, 7) und eine frei drehbare Unwuchtmasse (8, 9) tragen. Mit Hilfe einer Unwuchtverstelleinrichtung (10) lässt sich die Stellung der beiden frei drehbaren Unwuchtmassen (8, 9) derart verstellen, dass bei einer maximalen Unwuchtwirkung von einer der Unwuchtwellen (2) die Unwuchtwirkung auf der anderen Unwuchtwelle (1) minimal wird. Die Unwuchtverstelleinrichtung (10) kann die Stellung der Unwuchten (8, 9) verändern, so dass ein Hin- und Herfahren der Bodenverdichtungsvorrichtung bzw. eine Verdichtung im Stand möglich ist.
Abstract:
A crank (6) is connected to a driving shaft (8). A differential gear mechanism constituted by meshed bevel gears is attached to the driving shaft (8). A shaft (12) is provided with nozzles (13, 14) for receiving wires (W1, W2) to be wound. In addition, a rotation stopper (15) is provided on either one of the opposing gears of the differential gear mechanism. To the rotation stopper (15) is attached a guide rail (16) which moves in parallel to the shaft (12). Rotation of the crank (6) allows the nozzle (13, 14) to have a swing angle and a horizontal displacement and permits the shaft (12) to move vertically. In accord with the rotational angle theta of the crank (6), the nozzles (13, 14) effect winding while turning around field cores (2, 3).
Abstract:
Disclosed are systems, assemblies, and components that relate to power transfer. In particular, the disclosed systems includes a transmission that offers variable speeds and changes between different gear ratios while maintaining constant engagement. Constant engagement may be maintained by tooth-to-tooth contact to be scalable for a variety of applications. An example system includes a phase shifting mechanism. The phase shifting mechanism may include an eccentric gear that provides an oscillating output. The oscillating output creates an overall gear ratio change that slides between gear ratios, thereby allowing changes to occur in small, and possibly infinitely small increments. According to one example, an eccentric gear has a changing base radius and includes a tooth with a hybrid profile that has a base the width of an initial profile, and a width at a top of the tooth that is that of a final profile.