摘要:
Example apparatus and methods for rigging a torque tube assembly in an aircraft are described herein. An example torque tube assembly includes a torque tube and a spline coupling coupled to an end of the torque tube. The spline coupling has an opening to receive a spline gear on a drive shaft of an aircraft high lift device. The torque tube assembly also includes a retainer coupled to the spline coupling. The retainer blocks at least a portion of the opening in the spline coupling to prevent the spline coupling from being moved off of the spline gear on the drive shaft.
摘要:
Example torque tube assemblies for use with aircraft high lift devices are described herein. An example apparatus includes a spline coupling having a first yoke, a sliding splined shaft having a second yoke and a torque tube having a first end and a second end opposite the first end. A first fitting with a third yoke is coupled to the first end of the torque tube, and a second fitting with a fourth yoke is coupled to the second end of the torque tube. The third yoke is coupled to the first yoke to form a first U-joint, and the fourth yoke is coupled to the second yoke to form a second U-joint. The spline coupling is to be coupled to a first high lift device drive shaft and the sliding splined shaft is to be coupled to a second high lift device drive shaft.
摘要:
A joint assembly including a first yoke and a second yoke is provided. A sleeve is coupled to the first and second yokes and a centering device engages the ends of the first and second yokes. The centering device is configured to maintain the angular positions of the first and second yokes relative to one another, and is substantially fixed from rotation during rotation of the first and second yokes.
摘要:
A universal coupling is provided that aims to achieve constant velocity between the input and output shafts. The universal coupling also aims to increase the angle between input and output shafts over conventional double Cardan joints while maintaining constant velocity or near constant velocity therebetween. The universal coupling can employ a Sarrus type linkage in-between two universal joints of the Cardan type in a configuration that aims to achieve joint angles up to and including 90 degrees in the Y-Z plane, while maintaining constant velocity or near constant velocity therebetween.
摘要:
A coupling yoke for a double cardan joint, which is able to achieve effective weight reduction while ensuring necessary torsional stiffness, is provided. A coupling yoke for a double cardan joint includes: a pair of mutually facing flange portions each of which has a bearing hole for allowing a shaft portion, which is one of two shaft portions of each spider, to be rotatably installed and that protrude from each of both axial ends of a base portion in the axial direction. The base portion has a thick wall portion that couples the bearing holes of the diagonally arranged flange portions and that has an X shape when viewed in a direction along an axis of the shaft portion, which is the other one of the shaft portions of each spider and trimmed portions between adjacent thick portions of the X-shaped thick wall portion.
摘要:
The joint comprises two spiders 18 and a central core 16 forming a housing 24 for the sliding movement—in a transverse plane—of a basically discoidal constraint member 20 forming the seats 20A for the spherical end heads 1 OC, 14C of the two forks. The constraint member 20 moves about inside the housing 24. Between each of the two surfaces 24A, 24B and the opposing face of the constraint member 20, an elastic laminar ring 40 shaped like a Belleville washer is interposed, its annular edges being in continuous annular contact with the surface 24A or 24B and with the opposing face of the constraint member 20.
摘要:
Universal joint (100) includes a centering mechanism (100A) for supporting the universal and forcing the two joint halves to operate at the same angle thereby causing the joint to operate at constant velocity at all angles. Each shaft (134, 135) of the joint (100) is rotatably connected to the centering mechanism (100A). Movement of one of the shafts (134, 135) at an angle relative to the longitudinal axis of the coupling yoke (136) is transmitted to the other shaft (135, 134) by the centering mechanism (100A) and the centering mechanism (100A) causes the other shaft (135, 134) to likewise move at the same angle relative to the longitudinal axis of the coupling yoke (136). The centering mechanism (100A) includes cam rods (102, 103) supported within a cam tube (101), which arrangement allows a full range of movement of the shafts (134, 135) at angles of 90°.
摘要:
A variable geometry linkage configuration for use between a support structure and suspended body comprises a link member having first and second ends, a first pivotal interconnection for pivotally interconnecting the first end of the link member with a support plate for rotation about a support pivot axis of rotation. A lever member is provided which has a longitudinal axis and first and second ends. A second pivotal interconnection for pivotally interconnecting the first end of the lever member with an impact plate for rotation about a main pivot axis of rotation. A shock pivot is mounted to the lever member and is adapted to connect an end of a shock absorber to the lever member for rotation about a shock pivot axis of rotation. A third pivotal interconnection is provided for pivotally interconnecting the lever member to the link member for rotation about a lever pivot axis of rotation. An improved variable geometry linkage is provided in which at least one of the pivotal interconnections comprises a universal pivot joint for articulation of the link member with respect to the support plate and/or the lever member about mutually perpendicular axes to accommodate pitch and roll between the impact plate and the support plate.
摘要:
A centered double cardan joint for steering shafts in motor vehicles, in which the shaft ends (1, 2), which are nonrotatably connected to one another in the joint, are mounted movably in a universal joint around two articulated axes that enclose a right angle with one another and with the longitudinal axis of the shaft in a housing, which connects the two universal joints to one another, by journals (5 through 8 and 10 through 13). To make it possible to manufacture a joint that eliminates vibrations at low cost, each of the two universal joints is provided in a ring (3, 4), which surrounds the corresponding shaft end (1, 2) at a radially spaced location, and in which the shaft end (1, 2) is mounted movably around the journals (5 through 8) arranged in one articulated axis, and which is mounted movably in a housing made of a pipe section (9) by journals arranged in the other articulated axis.
摘要:
A double cardan wide angle turn close coupled constant velocity universal joint has driving and driven yokes (11 and 12) radially spaced, a pair of X shaped crossheads (19) pivotally mounted to a second pair of opposing yokes (16) closely coupled, driving and driven yokes each overlapping the other in wide angle turns.