Abstract:
This disclosure describes a belt driven block and tackle system. Traditionally flat belts have many advantages over wire ropes, including maintenance-free operation for an extended service life, a low cost of manufacture, and a reduced physical size in at least one dimension for a given set of working loads. The system includes a block and tackle including first pair of outer sheaves and a first pair of inner sheaves positioned between the first pair of outer sheaves, and a belt extending from a central point, around the first inner pair of sheaves, the first outer pair of sheaves, and out of the block and tackle.
Abstract:
In one example, an apparatus includes a plate configured to pivot about a pivot point, a pulley coupled to a first planar side of the plate and configured to rotate a belt, a motor coupled to the first planar side of the plate and configured to drive the pulley, and a torsion spring coupled to a second planar side of the plate that is opposite the first planar side and configured to apply tension to the belt.
Abstract:
A belt tensioner comprises a belt (12) trained on a drive pulley (14) driven by a drive unit (18) mounted on a base (20) supported on air-spring bellows (28) linearly extendable under fluid pressure from a collapsed position to an extended position to cause joint movement of the base (20), the drive unit (18) and the drive pulley (14) and thereby change the tension in the belt (12). A pressure regulator (30) is operatively connected to the air-spring bellows (28) for regulating the fluid pressure in the air-spring bellows (28) such as to maintain the tension substantially constant in the belt (12) during use.
Abstract:
This invention relates to an improved Alternator (1) and more in particular with the mounting and tensioning arrangement of alternator (1) and mounting method thereof, which is used for on board charging of the vehicle battery. Typically the alternator (1) is driven by the base driving unit such as internal combustion engine using a cogged V / poly V belt. The direct mounting of the alternator (1) on the base driving unit without any bracket is devised with the belt (5) tensioning arrangement integral to the alternator housing. This eliminates the need of a separate bracket and its hardware for mounting the alternator (1). Further it eliminates the tensioner pulley for tensioning the drive belt (5) which results in substantial reduction in weight and cost of the system.
Abstract:
Vorrichtung zur Befestigung eines in einem Riementrieb einer Brennkraftmaschine drehbar gelagerten und den Riementrieb spannenden Aggregats, wobei die Vorrichtung ein Befestigungsmittel (11) mit einer Konusfläche (18) aufweist, die mit einer gegengleich ausgebildeten Konusfläche (19) einer Hülse (20) zusammenwirkt, die das Aggregat im montierten Zustand axial und radial verspannt.
Abstract:
A drive assembly for a driven device having an input shaft is provided, including an attendant methodology for optimally configuring components thereof so as to minimize instability without recourse to utilization of a pivot regulating mechanism. The drive assembly includes a driving device having an output shaft, a driving device support structure, and a drive operatively linking the output shaft of the driving device with the input shaft of the driven device. The driving device support structure includes an anchorable base and a selectively positionable platform pivotable, with respect to the base, about a pivot axis so as to thereby define a tilt angle for the platform relative to a horizon. The drive including a drive sheave, a driven sheave, and an endless loop, a hub load being generated by the endless loop about the sheaves and acting therebetween along a hub load line.
Abstract:
A self-tensioning motor mount (22) having an anchorable base (24), a motor receiving platform (26) operatively engaged therewith so as to be pivotable about a pivot axis (28), and a pivot regulating mechanism (56) is provided. The pivot regulating mechanism (56) preferentially permits pivoting of the motor receiving platform (26), relative to the anchorable base (24), in a belt tightening direction, as opposed to a belt slackening direction. By such structure, an increase in belt tension during acceleration of a driven device (34), and a commensurate decrease in belt tension during sustained operation of the driven device (34) is permitted.
Abstract:
Fixed belt tensioners for a belt system, such as for an exercise bicycle or other belted exercise equipment. The tensioners have the pulley-bearing assembly fixedly attached to the tensioning arm, which is attached to the equipment frame or to a bracket via the same aperture that forms the axis by which the pulley-bearing assembly is attached to the tensioning arm. The arm includes a protrusion or other feature that provides a pivot point for use during the belt installation process. The tensioning arm also incorporates a tensioning adjustment, such as a hex or square hole or protrusion for engagement with a torque wrench or a simple wrench.