摘要:
A variable-speed moving walkway includes an array of support rollers (10) provided with a plurality of horizontal drive rollers (11), having upper surfaces arranged to be generally flush with each other and rotated about each axial center, and an endless belt (16), supported by the array of support rollers, for moving continuously by their rotation. An array of accelerating rollers (12), an array of high-speed rollers (13), and an array of decelerating rollers (14) constitute the array of support rollers, and allow rotational speeds of the horizontal drive rollers to gradually increase from a low speed, to be maintained at a constant high speed, and to gradually decrease to a low speed, respectively. In addition, the endless belt (16) readily extends or retracts in the direction of movement and barely extendable or retractable in the widthwise direction. The belt (16) extends and retracts in the direction of movement in response to the rotational speed of the horizontal drive rollers.
摘要:
A conveyor drive assembly including an elongated shaft having a first and second end and method of operating the conveyor drive assembly which reliably controls the speed of each end of the drive shaft and minimizes unequal loading of the conveyor belt. The method includes detecting the rotational position of the first end of the shaft, detecting the rotational position of the second end of the shaft, determining the rotational position of one of the first and second ends relative to the other of the first and second ends, and then rotationally driving at least one of the first and second ends of the shaft to maintain the rotational position of one of the first and second ends relative to the other of the first and second ends within a predetermined range. Advantageously, the present invention provides a conveyor drive assembly for use with wide conveyors which reliably controls the speed of each end of the drive shaft and minimizes unequal loading of the conveyor belt.
摘要:
A conveyor device comprises a conveyor belt including a plurality of slidable links which can slide on guiding elements. The conveyor belt is driven by a timing belt through link teeth formed on each of the links, and designed for engaging corresponding teeth of the timing belt.
摘要:
A moving walk for effecting transport in a longitudinal direction includes a series of belt modules with modules at a center portion running at a higher rate than modules at exit ends. Among the belt modules are at least first and second belt modules, each having a first end and a second end, a endless belt extending from the first end to the second end, and a drive circulating the endless belt. The first and second belt modules are disposed adjacent one another in the longitudinal direction with the second end of the first belt module opposing the first end of the second belt module. The second end of the first belt module is disposed higher that the first end of the second belt module when a passenger is transported from the first belt module to the second belt module to facilitate transition from module to module.
摘要:
A method and novel drive system for use in a continuous block caster for continuously casting metal is disclosed. In particular, a novel worm gear drive system which reduces imperfections that can be created in a cast by movement of a beam chain through a casting cycle is disclosed.
摘要:
A compact conveyor drive system which prevents resonance-induced noise and vibration caused by a polygonal motion observed in transmission gearing. The conveyor belt of the conveyor is driven through a chain trained over a driven sprocket mounted to the shaft of a drum and a drive sprocket on the side of a motor. The drive system is a motor built-in reducer, and a simple planetary roller mechanism is employed for the reducer. This enables the diameter of the sprockets to be made smaller. The motor generates lower vibration, while providing sufficient torque.
摘要:
In an escalator with a high speed inclined section, shape of an auxiliary rail is set, in a section between a forward path side horizontal section and a forward path side constant inclined section of a circulation path, such that, of steps adjacent to each other, a moving track of a relative position of a step on a lower step side with respect to a step on an upper step side is the same as surface shape of a riser of the step on the upper step side.
摘要:
An intermediate drive for a conveyor system is disclosed. The drive includes at least one, and preferably a plurality of spaced parallel drive sprockets gang mounted on a common drive shaft. In the preferred embodiment, each sprocket engages a separate conveyor belt to drive it in the same direction in an endless path along a conveyor guide rail. Each guide rail includes a recessed portion that preferably matches the contour of the corresponding sprocket. By juxtaposing each sprocket in the recessed portion, engagement between each drive sprocket and the corresponding modular link belt is made. The drive may also be used along a curved section of the conveyor system, in which case the drive sprockets have different diameters for driving the belts at different speeds, and the contour of the recessed portions correspond to the adjacent drive sprocket.
摘要:
The invention relates to a moving walk which can transport users in opposite two directions. A number of pallets 3 are arranged for rounding or circulation on annular rails 11 having two linear sectors 1A and 1B. Screw rods 16 are arranged on the linear sectors 1A and 1B of the rails 11. The adjacent pallets 3 are interconnected through string members 22. The pallets 3 are moved in opposite directions on the linear sectors 1A and 1B, respectively. Each pallet 3 is inserted at its front end under a read end of its preceding pallet 3 to provide a continuous walk surface so that many users are transported safely.
摘要:
A conveyor 20 comprising a continuous conveyor belt 35, driven at a constant speed, and configured for compression and expansion along the direction of travel of the continuous conveyor belt 35. The continuous conveyor belt 35 passes over a drive pulley 32 and a secondary pulley 34 that freely rotates. At least one impulse linkage 37 engages the continuous conveyor belt 35, the impulse linkage 37 extends beyond the continuous conveyor belt 35 such that it may be contacted by an impulse striker 49 that is configured to intermittently contact said impulse linkage 37. By so contacting the impulse linkage 37, a displacement of a portion of the continuous conveyor belt 35 relative to the rest of the continuous conveyor belt 35 is caused due to the subsequent expansion or compression of the continuous conveyor belt 35, resulting in a localized acceleration.