36results about How to "Reduce polygon effect" patented technology

A device and method for reducing the polygon effect that occurs during the course of the reversing of a chain in a pedestrian conveyor, escalator, or moving walkway. The device includes a reversing wheel, at least one gear indirectly or directly acting upon the reversing wheel, at least one power supply unit, an electric driving motor coupled to the at least one gear and the at least one power supply unit such that the driving motor can be driven with a non-constant speed, a function generator, a controlling apparatus coupled to the function generator, at least one position sensor for detecting a phase position of the reversing wheel and transmitting the phase position to the controlling apparatus. In such a device, the controlling apparatus transmits a synchronized set speed value to the power supply unit based on the phase position.

A polygon compensation coupling system for reducing a polygon effect in a chain driven system is disclosed. The polygon compensation coupling system may include a chain sprocket and a main drive in engagement with the chain sprocket, such that the engagement defines a compensation curve to reduce the polygon effect.

The invention relates to a method for guiding a drive chain containing links, guide rolls and connecting elements in the area of a reversing device, which is formed by a chain wheel, of a pedestrian conveyor system, particularly of an escalator or a moving sidewalk, whereby the guide rolls are supported, at least on the chain wheel side, on a guide profile. In drive chains of this type, which have connecting elements in the coupling areas of the links and in which a guide roll mounted between the links is provided in the remaining free space, the drive chain is led into the chain wheel such that when viewed in a moving direction the front connecting element of each link element is firstly placed in an associated accommodating area and the guide roll is subsequently placed in a corresponding calotte, and the rear connecting element is firstly led into the associated accommodating area when the guide roll is supported in the calotte in an elastically damped manner.

The invention discloses a walking wheel walking mechanism, which comprises a vehicle frame, a driving wheel arranged at the bottom of the vehicle frame, and a caster wheel for balancing the vehicle frame; the caster wheel can be locked or rotated until the wheel end face and The vertical direction is vertical, and the walking mechanism of the walking wheel of the present invention can adapt to unstructured terrain and has functions such as transportation, drilling, and pushing and pulling, so as to overcome the shortcomings of existing walking wheels with poor running comfort, so as to improve the performance of the wheel on unstructured terrain. Passability and good ride comfort.

The invention relates to a novel CVT gearbox which comprises a drive wheel movable disc, a drive wheel fixed disc, a driven wheel movable disc, a driven wheel fixed disc and a mute chain. The mute chain comprises a chain plate, bent pin shafts and short pin shafts. A through hole is formed in the chain plate. One set of pin shafts are inserted in each of the two ends in the through hole in a penetrating manner, and each set of pin shafts comprise one bent pin shaft and one short pin shaft, wherein the bent pin shaft is attached to the short pin shaft, and an opposite rolling face is formed by the side faces of the attached sides. The inclination angle of the arc face of the bent end of each bent pin shaft ranges from 17 degrees to 23 degrees, the inclination angle of the arc face of the straight end of each bent pin shaft ranges from 1 degree to 3 degrees, the curvature radius of the arc face of the bent end of each bent pin shaft ranges from 100 mm to 170 mm, and the curvature radius of the arc face of the straight end of each bent pin shaft ranges from 150 mm to 200 mm. The mute chain is provided with the two kinds of pin shafts, the arc faces of the two kinds of pin shafts conduct the pure rolling movement in the transmission process, the function of pitch changing is achieved, the vibration and noise of the chain are lowered, and the chain transmission efficiency is improved.

The transmission has a chain (2) with successive link series (5, 5, 5) connected to one another. A wheel rotates about an axis of rotation, and a driver unit interacts with the links. A support unit with a rotation support keeps the pivot axes at a constant speed of the wheel. The support interacts with the support surfaces such that distance between axis of rotation and pivot axes (H) is variable.

The invention discloses a Hy-Vo toothed chain with an ultra-small counter-rolling radius, which is composed of several connecting units. The connecting unit is composed of a chain plate and two paired round pins. Two chain plate holes that are symmetrical about the axis of symmetry in the vertical direction of the chain plate. The chain plate holes include a connected chain plate hole outer hole and a chain plate hole inner hole. When the connecting units are connected to each other, the left (right) side is adjacent The right (left) side positioning pair rolling pin of the connecting unit penetrates into the inner hole of the left (right) side chain plate hole of the intermediate connecting unit, and at the same time aligns with the positioning pairing in the outer hole of the left (right) side chain plate hole of the intermediate connecting unit. Roll the pin tangent. When the adjacent connecting unit rotates relative to each other, the equivalent pitch of the intermediate connecting unit increases with the increase of the relative rotation angle with the adjacent connecting unit, so that the polygonal effect of the chain drive system is reduced to the greatest extent, At the same time, the special-shaped pin shaft is replaced by the pair of rounded pins, which reduces the manufacturing and assembly requirements and reduces the cost.