摘要:
A power transmission belt structure including a flexible neutral belt portion, a plurality of blocks secured to the flexible belt portion seriatim longitudinally thereof, and heat conducting structure disposed between the flexible belt and blocks for conducting away from the flexible belt heat generated as a result of power transmission operation of the belt structure. A number of different embodiments utilizing the heat conducting structure are disclosed. In certain of the embodiments, the heat conducting structure extends partially about the blocks and, in certain of the embodiments, the heat conducting structure extends fully thereabout. In certain embodiments, the reduced midportion of the block is provided with the heat conducting structure recessed therein. In one form, a protective outer coating is provided on the heat conducting structure.
摘要:
An apparatus and method for effectively minimizing sound emanation from a power transmission belt drive and providing extended useful life of the power transmission belt by reducing the operating temperature thereof. In the illustrated embodiment, the drive system is enclosed in a housing having one or more inlets and one or more outlets. Air moving structure is provided in association with the pulleys for causing air flow through the interior of the housing from the inlets to the outlets as an incident of operation of the drive system. In the illustrated embodiment, the pulleys are formed of heat conducting material so as to transfer heat from the belt to the air being flowed through the interior of the housing, thereby reducing the operating temperature of the belt. A sound absorber may be provided within the housing and, in the illustrated embodiment, sound absorbing means are provided on the inner surfaces of the housing, the inlets and outlets, and may be provided internally of conduits which may be coupled to the inlets and outlets as desired. Fans may be provided in the inlet and/or outlet for augmented air flow through the housing.
摘要:
A power transmission belt for transmitting high loads having an elastomeric looped flat belt portion having a longitudinally extending tensile cord and defining an outer surface and an inner surface, and a plurality of longitudinally extending spaced blocks mounted to the outer and inner surfaces respectively of the flat belt portion. Each block is formed of a core and a fabric wrapped around the core. In one embodiment, the block is secured to the flat belt portion by bolts extending therethrough. The fabric of the blocks may be treated with different materials, such as rubber, synthetic resins, and the like. The core may be formed of an elastomeric material. The flat belt portion may be provided with one or more layers of fabric.
摘要:
A belt-type continuously variable transmission consisting of: an input/drive shaft with a rotational axis; an output/driven shaft with a rotational axis; a first variable speed pulley on the input/drive shaft and having a first pulley part fixed against axial movement relative to the input/drive shaft and a second pulley part movable axially relative to the first pulley part, with the first and second pulley parts cooperatively defining a belt-receiving groove; a second variable-speed pulley on the output/driven shaft and having a third pulley part fixed against axial movement relative to the output/driven shaft and a fourth pulley part movable axially relative to the third pulley part, with the third and fourth pulley parts cooperatively defining a belt-receiving groove; a fluid cylinder; structure for shifting the second pulley part axially relative to the first pulley part in response to a change in pressure in the fluid cylinder; a fluid reservoir on the first variable-speed pulley for rotation with the input/drive shaft; structure for sensing the rotational speed of the fluid in the fluid reservoir as the input/drive shaft is operated; and structure for communicating the sensing structure with the fluid cylinder to establish an equilibrium therebetween and to thereby vary the fluid pressure in the fluid cylinder as an incident of a change in the rotational velocity of the input/drive shaft and the fluid in the fluid reservoir.
摘要:
A power transmission mechanism (10) having a V-belt (11) provided with transverse reinforcing elements (22). The V-belt, in the illustrated embodiment, defines a cog belt wherein the reinforcing elements are disposed within the cogs (15) thereof to have opposite end surfaces (23) exposed at the side edge surfaces (21) of the belt. A thin film of lubricating fluid (27) is provided on the exposed end surfaces of the reinforcing elements for improved long troublefree operation of the mechanism. Different structures for providing the thin film of lubricating fluid are disclosed. In the illustrated embodiments, the thin film extends along the entire side edge surfaces of the V-belt.
摘要:
An entertainment system includes a digital television connected to a number of audio/video input devices. The television and at least two of the input devices support analog legacy communication schemes. The television is adapted to uniquely identify the analog output channels from each of the input devices. Uniquely identifying the analog output channels from each input device enables the television to automatically select the correct device output from among the numerous possibilities. This automation relieves the user of having to manually select the correct analog channel.
摘要:
An entertainment system includes a digital television connected to a number of audio/video input devices. The television and at least two of the input devices support analog legacy communication schemes. The television is adapted to uniquely identify the analog output channels from each of the input devices. Uniquely identifying the analog output channels from each input device enables the television to automatically select the correct device output from among the numerous possibilities. This automation relieves the user of having to manually select the correct analog channel.
摘要:
An X-ray CT scanner having an X-ray tube for radiating X-rays to a subject, an X-ray detector for detecting X-rays that have penetrated the subject, a circular plate-like rotary member with an opening for insertion of a subject and having the X-ray tube and the X-ray detector mounted thereon at opposing positions with respect to the opening, a support for rotatably supporting the rotary member, and a rotary drive for rotating the rotary member around the subject. The X-ray tube and the X-ray detector are mounted on a side surface of the rotary member, the side surface being a unit mounting surface for mounting a control unit relating to at least one of generation and detection of the X-rays.
摘要:
A bevel gear 1 has a radius of curvature R of a fillet curve provided between a tooth flank A and a bottom land B gradually increasing from a small-diameter end D1 to a large-diameter end D2.
摘要:
A apparatus for crushing waste metal products includes a rotor having a crushing device on a periphery thereof and a casing enclosing the rotor. The casing has an inlet and an outlet for products to be crushed. An exhaust gas from the casing is partly returned to the inlet of the casing by a circulator. The rest of the exhaust gas is ventilated and processed by an exhaust processor. An oxygen concentration is monitored in a gas pathway of the circulator to control the gas concentration in the casing. If the oxygen concentration is high, a water shower sprays into the casing.