摘要:
A lower link (13) is formed such that outer circumferential sides of both end portions of a crankpin through-hole (21) are stiffer than a center portion of the crankpin through-hole (21), i.e. a bifurcation portion of a bifurcated shape thereof. The both end portions of the crankpin through-hole (21) are formed such that inner circumferential surfaces (22a) of the both end portions are curved at a predetermined curvature in an axial direction of a crankshaft with no load input on the lower link (13). Moreover, the center portion of the crankpin through-hole (21) is formed such that an inner circumferential surface (22b) thereof is located inward of the inner circumferential surfaces (22a) of the both end portions and is straight in the axial direction of the crankshaft with no load input on the lower link (13).
摘要:
The aim of the invention is to provide a method for producing sintered components of sufficiently good strength. To achieve this, in a first step of the method, sinterable material is introduced into a first die and in a second step is compressed into a green compact. In a third step, the green compact is at least partially further consolidated in a second die and in a fourth step, the consolidated green compact is sintered. The density of the green compact achieved by the further consolidation undertaken in the third step is approximately 2 to 40 % greater than the density prior to said consolidation.
摘要:
L'invention concerne une pièce de transmission en matière plastique destinée à l'accouplement en rotation de deux organes mobiles aptes à pivoter autour d'axes de rotation parallèles. Cette pièce comporte deux leviers (10, 20) aptes à être couplés en rotation chacun avec un organe mobile, reliés par une bielle (40), venue de formation avec les leviers et raccordée à ces derniers par des ponts de matière formant charnière (50, 60), d'épaisseur minimale choisie pour permettre une liaison articulée de la bielle et des leviers.
摘要:
A jig (31) is placed on a cylinder block (11) set in an inverted position, and a crankshaft (5) is lifted upward from a main bearing part (17) and held at a predetermined height position. A lower link (7) temporarily fitted to a crank pin (6) in the previous step is rotated about the crank pin (6) as a cener by a robot hand, and held in a predetermined inclined position in which a dividing surface (28) becomes vertical. In this state, a pair of bolts (29) is horizontally fastened from the right and the left by using a nut runner (55).
摘要:
A rotary joint (10) comprises a socket rod (2) having a socket rod flange (5) with a basically spheroid con-cave bearing surface at a first end, a housing nut (1) encircling the socket rod (2) and having a threaded wrenching head, a ball rod (6) having a basically spheroid convex bearing surface and threaded side walls around the convex bearing surface, and a joint actuator (11) configured to actuate relative movement of the socket rod flange (5) and the ball rod (6). A diameter of the threaded side walls of the ball rod (6) corresponds to a diameter of the threaded wrenching head of the housing nut (1).
摘要:
A socket (1) for a ball joint (11) allowing transfer of motion from a drive member (3) having a major extension direction (3a) and a spherical end (3b), to at least one driven component (4) rigidly connected to the ball joint (11); and wherein said socket (1) comprises a housing body (2) having an opening (2c) and including a substantially spherical cavity (2a) suitable to house the spherical end (3b), and an elastic element (9) in engagement with the housing body (2) on the opposite side relative to the opening (2c) and able to press the housing body (2) in the direction of the drive member (3).
摘要:
A socket (1) for a ball joint (11) allowing transfer of motion from a drive member (3) having a major extension direction (3a) and a spherical end (3b), to at least one driven component (4) rigidly connected to the ball joint (11); and wherein said socket (1) comprises a housing body (2) having an opening (2c) and including a substantially spherical cavity (2a) suitable to house the spherical end (3b), and an elastic element (9) in engagement with the housing body (2) on the opposite side relative to the opening (2c) and having a shape made up of two disc shaped portions (9a, 9b): a first of smaller section (9a), adjacent to the housing body, and a second (9b) of greater section adapted to press the housing body (2) in the direction of the drive member (3).
摘要:
The present invention relates to a link member for a vehicle having bracket portions at both ends and an intermediate connecting both bracket portions and arranged at an intermediate portion. The link member for a vehicle is constituted by an integrally formed product formed by deforming a pipe-shaped workpiece W1 by plastic working. The intermediate connecting portion is provided with an intermediate shaft portion 3 having a diameter smaller that that of the bracket portion 2, and a thickness of a peripheral wall of the bracket portion 2 is different from that of a peripheral wall of the intermediate shaft portion 3. This increases strength and durability of the link member.