Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020137924 - TRIPOD-TYPE CONSTANT VELOCITY UNIVERSAL JOINT

Publication Number WO/2020/137924
Publication Date 02.07.2020
International Application No. PCT/JP2019/050225
International Filing Date 20.12.2019
IPC
F16D 3/20 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
3Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
20one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
F16D 3/205 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
3Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
20one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
202one coupling part having radially projecting pins, e.g. tripod joints
205the pins extending radially outwardly from the coupling part
CPC
F16D 3/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
3Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
20one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
F16D 3/205
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
3Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
20one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
202one coupling part having radially projecting pins, e.g. tripod joints
205the pins extending radially outwardly from the coupling part
Applicants
  • NTN株式会社 NTN CORPORATION [JP]/[JP]
Inventors
  • 板垣 卓 ITAGAKI Taku
  • 杉山 達朗 SUGIYAMA Tatsuro
  • 河田 将太 KAWATA Shouta
Agents
  • 城村 邦彦 SHIROMURA Kunihiko
  • 熊野 剛 KUMANO Tsuyoshi
Priority Data
2018-24546927.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) TRIPOD-TYPE CONSTANT VELOCITY UNIVERSAL JOINT
(FR) ACCOUPLEMENT HOMOCINÉTIQUE DU TYPE TRIPODE
(JA) トリポード型等速自在継手
Abstract
(EN)
This tripod-type constant velocity universal joint (1) comprises: an outside joint member (2) provided with a track groove (5); a tripod member (3) provided with three leg shafts (7) which project in a radial direction; a roller (11) that is inserted into the track groove (5); and an inner ring (12) externally fitted to the leg shafts (7) and rotatably supporting the roller (11). On the surface of each of the leg shafts (7), a hardened layer (16) is formed by means of carburization, quenching, and tempering. The tripod member (3) is formed using a steel material having a carbon content of 0.23% to 0.44%. A Ts torque is set to be 0.3 times the minimum static torsional torque required for a shaft (9) that is coupled to the tripod member (3) to twist and break, and the effective hardened-layer depth (H) of the hardened layer (16) having a hardness limit of 600HV is made to be equal to or greater than the maximum shearing stress depth (Z) occurring at the time that the Ts torque is loaded.
(FR)
L'invention concerne un accouplement homocinétique tripode (1), lequel accouplement comprend : un élément d'accouplement externe (2) comportant une rainure de piste (5); un élément de tripode (3) comportant trois arbres de patte (7) qui font saillie dans une direction radiale; un rouleau (11) qui est inséré dans la rainure de piste (5); et une bague interne (12) adaptée à l'extérieur sur les arbres de patte (7) et supportant en rotation le rouleau (11). Sur la surface de chacun des arbres de patte (7), une couche durcie (16) est formée par carburation, trempe et revenu. L'élément de tripode (3) est formé à l'aide d'un matériau en acier ayant une teneur en carbone comprise entre 0,23% et 0,44%. Un couple Ts est établi de façon à être égal à 0,3 fois le couple de torsion statique minimal requis pour qu'un arbre (9) qui est couplé à l'élément de tripode (3) se torde et se rompe, et la profondeur de couche durcie efficace (H) de la couche durcie (16), ayant une limite de dureté de 600 HV (dureté Vickers), est amenée à être supérieure ou égale à la profondeur de contrainte de cisaillement maximale (Z) se produisant au moment où le couple Ts est chargé.
(JA)
トリポード型等速自在継手(1)は、トラック溝(5)を備える外側継手部材(2)と、半径方向に突出した三つの脚軸(7)を備えたトリポード部材(3)と、トラック溝(5)に挿入されたローラ(11)と、脚軸(7)に外嵌され、ローラ(11)を回転自在に支持するインナリング(12)とを備える。各脚軸(7)の表面に、浸炭焼入れ焼戻しにより硬化層(16)が形成される。トリポード部材(3)は、炭素含有量が0.23%~0.44%の鋼材で形成する。トリポード部材(3)に連結される軸(9)が捩り破断を起こす最小の静的捩りトルクの0.3倍をTsトルクとして、600HVを限界硬さとした硬化層(16)の有効硬化層深さ(H)を、Tsトルクを負荷した時の最大せん断応力深さ(Z)以上にする。
Also published as
Latest bibliographic data on file with the International Bureau