摘要:
L'invention concerne un montage (1) de palier à roulement comprenant une fusée (3) mobile en rotation qui est destinée à être solidaire d'une roue d'un véhicule, ladite fusée comprenant une paroi externe (13) sur laquelle est emmanchée un roulement (2), ledit roulement étant immobilisé axialement sur la paroi (13) au moyen d'au moins une entretoise rigide (19) qui est emmanchée sur une portée de ladite paroi, une face latérale (28) de l'entretoise (19) formant butée axiale pour une bague intérieure (11), ladite entretoise (19) intégrant un moyen de diminution de la corrosion de contact, ledit moyen comprenant au moins un usinage (29, 30) réalisé dans l'entretoise (19), ledit usinage étant agencé pour diminuer la rigidité structurelle de ladite entretoise de sorte à permettre, au moins au niveau de la face latérale (28), la flexion de ladite entretoise lors de la rotation en charge de la fusée (3).
摘要:
The invention relates to a bearing comprising at least one system for determining the amplitude A of the pseudo-sinusoidal deformations of an area of the fixed race that are induced during rotation, the said system comprising at least three strain gauges (7), a device for measuring three signals Vi depending respectively on the temporal variations of the signal emitted by each gauge (8), the said device being able to form two signals SIN and COS respectively of like angle and like amplitude, and a device for calculating the amplitude A of the deformations of the area (7) as a function of time, the said device being designed to calculate the expression SIN2+COS2 so as to deduce the amplitude A therefrom.
摘要:
To provide a rotation detecting system of a type having a high detecting resolution, in which the rotational position can be detected accurately, in which a sufficient gap can be secured between the sensor and the rotating body and which is effective to simplify assemblage and processing to thereby reduce the manufacturing cost, the rotation detecting system is provided with a multiplying section 4 for multiplying the pulses, generated by the sensor 3, by a multiplication factor to form multiplied pulses Pb and a speed detecting section 5 for detecting an period average speed of the encoder 71 during the interval, in which the latest N pieces of the multiplied pulses Pb have been generated where N represents the multiplication factors by which the multiplied pulses Pb have been multiplied.
摘要:
The invention relates to a method for protecting a mechanical machine operation by punctually adding the determined quantity of at least one type of additive into said machine consisting in using an additive injection system (G1-G3) which comprises a reservoir containing a determined quantity of additive and a gas generator for expelling said additive from the reservoir to the machine and in actuating the gas generator when said machine operates at least in a critical condition. The mechanical machine provided with the system (G1-G3) for injecting said protective additive is also disclosed.
摘要:
The invention relates to a method of forming a reference pulse Ir from three signals, SIN, COS and REF, in which: the REF signal is compared with a threshold value such as to form a digital signal S1 comprising windows F having a width that is a function of the half period of signal REF; and signals SIN and COS are compared in order to form a digital signal S2 comprising, for each period, a pulse I and a combination of the pre-formed digital signals (S1, S2) such as to discriminate the reference pulse Ir. The invention also relates to a device for determining a reference state of an element that is rotating in relation to a fixed structure, comprising a treatment device that can perform one such method.
摘要:
The invention relates to a method for determining the amplitude A of pseudo-sinusoidal deformations of a structural element area consisting in placing in said area at least two stress gauges (1) each of which produces a signal VI based on the deformation thereof, in forming at least two signals SI according to variations of at least one signal VI emitted by the gauges (1) during deformation, in forming two SIN and COS signals based on the signals SI for the same angle and the same A-dependent amplitude, and in calculating a SIN2 + COS2 expression in such a way that the amplitude A is derived therefrom. A system for determining by means of the inventive method is also disclosed.
摘要:
L'invention concerne un roulement comprenant au moins une cage (4) comprenant un corps généralement annulaire pourvu d'un déflecteur annulaire (6) s'étendant généralement radialement sur un bord transversal du corps, dans lequel, en combinaison : - la disposition relative du déflecteur (6) et des bagues (1, 2) est prévue pour permettre le passage d'un fluide de lubrification depuis l'extérieur du roulement vers l'espace formé entre les bagues (1, 2) ; - au moins une bague (1, 2) est réalisée en acier comprenant entre 0,75% et 1,1% en poids de Carbone, ladite bague comprenant une zone de surface d'épaisseur inférieure à 0,5 mm, ladite zone de surface présentant un profil de quantité en poids d'austénite qui varie entre 10% et 30% de sorte à assurer un renforcement de ladite bague.