WO2004113752A1 - ユニバーサルジョイント - Google Patents
ユニバーサルジョイント Download PDFInfo
- Publication number
- WO2004113752A1 WO2004113752A1 PCT/JP2004/007901 JP2004007901W WO2004113752A1 WO 2004113752 A1 WO2004113752 A1 WO 2004113752A1 JP 2004007901 W JP2004007901 W JP 2004007901W WO 2004113752 A1 WO2004113752 A1 WO 2004113752A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- universal joint
- yoke
- arm
- output shaft
- input shaft
- Prior art date
Links
- 241000239290 Araneae Species 0.000 claims abstract description 49
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- JCCNYMKQOSZNPW-UHFFFAOYSA-N loratadine Chemical compound C1CN(C(=O)OCC)CCC1=C1C2=NC=CC=C2CCC2=CC(Cl)=CC=C21 JCCNYMKQOSZNPW-UHFFFAOYSA-N 0.000 claims 1
- 230000010355 oscillation Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 14
- 238000005452 bending Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 230000036316 preload Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000282693 Cercopithecidae Species 0.000 description 1
- 241000252233 Cyprinus carpio Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/20—Connecting steering column to steering gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
- F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
- F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
- F16D3/385—Bearing cup; Bearing construction; Bearing seal; Mounting of bearing on the intermediate member
Definitions
- the present invention relates to a universal joint, particularly to a universal joint suitable for an automobile steering system.
- a universal joint is an old known coupling device called a cardan joint, a hook joint, or a cross joint.
- This universal joint is used to transmit power between two axes that are inclined or staggered from each other. For example, in passenger cars, while transmitting the output of the engine to the differential gear unit via the transmission, or from the handle shaft to the vehicle body-side steering device, or from the handle shaft to the power steering device, or It is used to transmit rotation between the power steering device and the vehicle-side steering device.
- Universal joints are sometimes used alone, but they are often used in pairs.
- FIG. 1 is a schematic diagram for explaining an outline of a conventional universal joint 10.
- the two axes (the input axis 1 and the output axis 2 which intersects it at an intersection angle a) have yokes 11 1 and 21 respectively, and each yoke has two yoke arms 1 1 1 and 1 1 1, and 2 1 1 and 2 1 1 respectively.
- the two yokes are connected via a cross member 3 having four spider arms 3 11, 3 11, 3 2, and 3 2 1 that are orthogonal to each other in a cross shape.
- the spider arms 3 1 1, 3 1 1 on the opposite side form a pair, and the bearings 4 1 1, 4 1 1 respectively connect the yoke arms 1 1 1, 1 1 1 on the input shaft 1 side and the other
- the pair of spider arms 3 2 1 and 3 2 1 are connected to the yoke arms 2 1 1 and 2 1 1 on the output shaft 2 side by bearings 4 2 1 and 4 2 1, respectively.
- the bearing is rotatable.
- the output shaft 2 when the input shaft 1 makes one turn, the output shaft 2 also makes one turn.
- the same amount of rotation can be transmitted as a whole between the input and output shafts, but within each rotation, the instantaneous angular velocity of the output shaft 2 differs for each rotation angle of the input shaft 1. Since the instantaneous angular velocities are different, the transmitted torque ratio fluctuates within one revolution, and this fluctuation of the transmitted torque is one of the drawbacks of the universal joint.
- the goal is to improve the steering feeling.
- the first of the universal joints of the present invention is an input shaft, a pair of yoke arms provided on the input shaft, an output shaft, and a pair of yoke arms provided on the output shaft.
- a yoke arm a cross member having four spider arms orthogonal to each other in a cross shape, provided between the two end portions of the spider arms on opposite sides and the two yoke arms of the input shaft, respectively.
- a universal joint comprising two bearings, and two bearings provided between the remaining two distal ends of the spider arm and the two shock arms of the output shaft, respectively.
- a second invention is the first universal joint, wherein the resistance adding mechanism is configured such that at least one of the bearings is a bearing whose resistance load fluctuates according to a driving angle.
- This is a universal joint characterized by being configured as follows.
- the bearing constituting the resistance adding machine key is formed by a substantially elliptical shock hole formed in the yoke arm and the spider arm.
- a bearing cup is press-fitted into a substantially elliptical yoke hole formed in the yoke arm, and an inner surface of the bearing cup and the spider arm are provided.
- the universal joint is characterized in that a plurality of needles are interposed between the substantially elliptical tip of the joint.
- the resistance adding mechanism comprises a cam surface formed on an end surface of the spider arm and an engagement projection provided on the yoke arm in contact with the cam surface. This is a universal joint.
- a bearing cup is press-fitted into a circular yoke hole formed in the yoke arm.
- a universal joint having a plurality of needles interposed therebetween and the engagement protrusion formed at a bottom of a force cup of the bearing cup.
- the resistance adding mechanism is provided on one of the input shaft side and the output shaft side.
- an eighth invention provides a universal joint according to the first to sixth universal joints, wherein the resistance adding mechanism is provided on both the input shaft side and the output shaft side. It is.
- a ninth invention is a steering apparatus for an automobile, wherein any one of the first to eighth universal joints is interposed between the steering column and the vehicle body-side steering mechanism. .
- the tenth invention is provided with two universal joints having substantially equal crossing angles of any of the first to eighth and an intermediate shaft, and one of the universal joints is provided.
- an automotive universal joint assembly characterized in that its output shaft is the intermediate shaft and the other universal joint is this intermediate shaft as the input shaft.
- the universal joint of this invention the fluctuation
- FIG. 1 is a schematic diagram for explaining the outline of the universal joint.
- FIG. 2 is an explanatory diagram showing the entire steering mechanism of an automobile to which the present invention can be applied.
- FIG. 3 is an enlarged view showing a state where the input / output shaft of the universal joint rotates.
- Fig. 4 is an enlarged view showing the situation when the input and output shafts of the universal joint rotate.
- Fig. 5 is a graph showing the change in the angular velocity ratio r with respect to the rotation angle ⁇ of the input shaft 1. is there.
- FIG. 6 is a graph showing a change in input shaft torque when two sets of universal joints are used with respect to the rotation angle ⁇ of the input shaft 1.
- FIG. 7 is a diagram showing a state in which the cross member 3 changes its posture (swing) when the cross member 3 is viewed by a camera fixed to the rotating input shaft 1.
- FIG. 8 is a graph showing the relationship between the conventional bending torque and the driving angle.
- FIG. 9 is an explanatory diagram showing that the bearing 4111 and the spider arm 3111 are formed in a substantially elliptical shape slightly deviated from a circle.
- FIG. 10 is an explanatory diagram exaggerating a main part of the bearing 411.
- FIG. 11 is an explanatory diagram exaggerating a main part of the bearing 411.
- FIG. 12 is a graph showing the relationship between the bending torque generated by the bearing 4 11 and the swing angle 3.
- FIG. 13 is a graph showing that the universal joint 10 has a substantially constant rotational torque as a substance when a selective load is applied.
- FIG. 14 is an enlarged view of a main part of the second embodiment.
- FIG. 15 is an enlarged cross-sectional view showing only a main part of the resistance adding mechanism according to the second embodiment.
- FIG. 16 ( ⁇ ) is a plan view of the cross member 3 in the third embodiment, and ( ⁇ ) is a left side view of the end face of the spider arm 311.
- FIG. 2 is an explanatory diagram showing the entire steering mechanism of an automobile to which the present invention can be applied.
- a steering column 52 is fixed to the vehicle body 91 so that its inclination can be adjusted by an adjusting lever 52.
- the steering column 52 is a wheel chassis that penetrates the inside.
- the shaft 5 2 1 is rotatably supported, and the spindle 5 1 is fixed to the upper end of the wheel shaft 5 2 1.
- two sets of universal joints 10 are provided.
- the input shaft 1 of the upper universal joint 10 is connected to the lower end of the wheel shaft 5 21, and the output shaft 2 is an intermediate shaft 61.
- Below the intermediate shaft 61 is the input shaft 1 of another universal joint 10, and the output shaft 2 of this universal joint 10 is connected to the pinion shaft 62.
- a pinion is fixed to the pinion shaft 62 so as to drive a rack shaft of the vehicle body-side steering mechanism.
- the steering column 52 may be provided with an electric assist motor for the electric power steering device.
- the center line of the wheel shaft 5 2 1 and the center line of the intermediate shaft 6 1, and the center line of the intermediate shaft 6 1 and the center line of the pinion shaft 6 2 have their respective intersection angles ⁇ 1 and a 2 ( They always cross at ⁇ 1 0; 2).
- ⁇ 1 and a 2 They always cross at ⁇ 1 0; 2).
- FIGS. 3 and 4 are enlarged views showing a state when the input / output shaft of the universal joint 10 rotates.
- the same reference numerals are used in FIGS. 1 and 2 for common members.
- Figure 5 graphically shows the change in the angular velocity ratio with respect to the rotation angle 0 of the input shaft 1. Things.
- the upper part of Fig. 5 shows the posture of the universal joint.
- the torque transmission ratio changes with the change in the angular velocity ratio r composer, and the larger the intersection angle ⁇ , the larger this fluctuation.
- FIG. 7 is a view showing a state in which the cross member 3 changes its posture when the camera is fixed to the rotating input shaft 1 and the cross member 3 is viewed with this camera (movement).
- the one spider arm 3 1 1 of the cross member 3 is supported by the yoke arm 1 1 1 on the input shaft 1 side by the bearing 4 1 1, so that the yoke arm 3 on the output shaft 2 side
- the other spider arm 3 2 1 bearing on 2 1 1 oscillates left and right with the amplitude of the tolerance angle a for each rotation of the input shaft 1, and the input / output shaft rotates once twice in the neutral position (Fig. 7 In the vertical direction).
- FIG. 8 shows the relationship between the conventional bending torque and the swing angle. It can be seen that the relationship is almost constant regardless of the swing angle
- the loop is drawn because the direction of friction changes when the direction of motion changes.
- This friction torque generates torque fluctuations (diagram B) as shown in FIG. This deteriorated the driver's steering feeling when rotated.
- Line A shows the ideal case where the bending torque of the two sets of universal joints is 0 (that is, the frictional resistance is assumed to be 0), the phases are shifted by a predetermined angle, and the intersection angles are the same.
- the above-described selective load is provided by the configuration described below.
- the bearing 411 and the spider arm 311 are formed in a substantially elliptical shape slightly deviated from a circle.
- the bearing 4 1 1 is configured as follows. That is, a substantially elliptical yoke hole 71 is formed in the yoke arm 11, and a bearing force gap 73 is press-fitted into the yoke hole 71.
- the inner surface (bearing surface) of the bearing cup 73 also becomes substantially elliptical by press fitting.
- the tip of the spider arm 3 1 1 is finished in a substantially elliptical outer shape, and a large number of needles 7 2 are interposed between the spider arm 3 1 1 is formed. It should be noted that an ellipse or an approximate ellipse here does not mean an exact ellipse in the mathematical sense.
- the main part of the bearing 411 is exaggerated.
- the major axis direction of the ellipse of the yoke hole 71 is the vertical direction in these figures (the direction orthogonal to the axis of the input shaft 1 in the drawings), and the ellipse at the tip of the spider arm 311 is cross-shaped.
- the major axis is formed in a direction perpendicular to the plane including the center line of the four spider arms (311 etc.) of member 3.
- FIG. 10 shows the relationship between the ellipse of the yoke hole 71 and the ellipse of the tip of the spider arm 311 when the spider arm 311 is in the neutral position.
- the major axis direction of the ellipse at the tip of the spider arm 311 coincides with the minor axis direction of the ellipse of the yoke hole 71, so that a strong preload works and the friction torque is large.
- This state corresponds to the state in FIG.
- FIG. 11 shows a state in which the pivot angle of the cruciform member 3 is the maximum, that is, coincides with the magnitude of the tolerance angle ⁇ .
- the major axis of the ellipse at the tip of the spider arm 3 1 1 is inclined by 3 so that the preload is weakened and the friction torque is also reduced. This state corresponds to the state in FIG.
- Fig. 12 shows the relationship between the bending torque generated by configuring such a bearing 4 11 and the turning angle J3, and the bending torque greatly changes according to the turning angle
- the resistance adding mechanism is realized by the bearing 4 11, but in the second embodiment, the resistance adding mechanism is realized by the cam surface 76 and the engagement protrusion 75.
- the configuration is the same as that of the first embodiment, so the description thereof will be referred to, and only the configuration different from this will be described below.
- FIG. 14 is an enlarged view of a main part of the second embodiment.
- FIG. 15 is an enlarged cross-sectional view showing a posture corresponding to FIG. 4, showing only a main part of the resistance adding mechanism.
- the outer shapes of the distal ends of the shock hole 71 and the spider arm 311 are circular as in the conventional case.
- a cam surface 76 is formed on the end surface of the spider arm 311. The cam surface 76 is a slope that becomes higher toward the left of the figure.
- An inward engaging projection 75 is formed on the cup bottom 74 of the bearing cup 73 at a position eccentric from the axis.
- the cam surface 76 can be not only a flat surface as shown, but also an appropriate curved surface.
- the seal 77 is provided to prevent dust from entering the inside of the bearing 411.
- FIGS. 16 and 16A are plan views of the cross member 3 according to the third embodiment, and FIG. 16B is a left side view of the end face of the spider arm 311.
- the second embodiment differs from the second embodiment only in that the end surface of the spider arm 311 is constituted by a roof-shaped cam surface 76 composed of two slopes. The ridge points in a direction perpendicular to the plane formed by the four spider arms.
- a universal joint 10 having a substantially constant torque transmission ratio can be obtained as a substance, as shown in an example in FIG.
- one yoke arm and one spider arm of the universal joint have been described.
- the configuration disclosed herein can be adopted for the other yoke arm and spider arm.
- these universal joints are interposed between the steering column and the vehicle-side steering mechanism and incorporated into the vehicle steering system, so that fluctuations in the transmission torque at the universal joint can be suppressed. The steering feel of the vehicle can be improved.
- One universal joint has the output shaft as the intermediate shaft, and the other universal joint has the intermediate shaft as the input shaft.
- the body can be distributed to the market, and the car using this assembly Since the fluctuation of the transmission torque at the monkey joint is suppressed, the steering feeling during driving will be improved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Steering Controls (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04745624A EP1653101A4 (en) | 2003-06-20 | 2004-06-01 | UNIVERSAL JOINT |
US10/561,254 US20060258468A1 (en) | 2003-06-20 | 2004-06-01 | Universal joint |
JP2005507195A JPWO2004113752A1 (ja) | 2003-06-20 | 2004-06-01 | ユニバーサルジョイント |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003/176248 | 2003-06-20 | ||
JP2003176248 | 2003-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004113752A1 true WO2004113752A1 (ja) | 2004-12-29 |
Family
ID=33534891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/007901 WO2004113752A1 (ja) | 2003-06-20 | 2004-06-01 | ユニバーサルジョイント |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060258468A1 (ja) |
EP (1) | EP1653101A4 (ja) |
JP (1) | JPWO2004113752A1 (ja) |
CN (1) | CN100392271C (ja) |
WO (1) | WO2004113752A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7967102B2 (en) | 2005-10-31 | 2011-06-28 | Honda Motor Co., Ltd | Steering shaft support structure and vehicle |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5126843B2 (ja) | 2008-08-11 | 2013-01-23 | 株式会社ジェイテクト | 車両用操舵装置 |
CN102336273B (zh) * | 2011-09-14 | 2014-08-06 | 中国航空工业集团公司西安飞机设计研究所 | 一种滚转式万向接头运动机构 |
CN110352307B (zh) * | 2017-01-23 | 2022-10-11 | 德纳汽车系统集团有限责任公司 | 卡入式轴承盖 |
US11407440B1 (en) * | 2021-02-26 | 2022-08-09 | Nissan North America, Inc. | Steering column assembly with protective clip |
DE102021211769A1 (de) | 2021-10-19 | 2023-04-20 | Thyssenkrupp Ag | Gelenkkreuz für ein Kreuzgelenk, Kreuzgelenk, Lenkwelle eines Kraftfahrzeugs und Lenksystem für ein Kraftfahrzeug |
BE1030037B1 (de) * | 2022-06-29 | 2023-07-10 | Thyssenkrupp Ag | Gelenkgabel für ein Kreuzgelenk, Kreuzgelenk, Lenkwelle eines Kraftfahrzeugs und Lenksystem für ein Kraftfahrzeug |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3660989A (en) * | 1969-01-24 | 1972-05-09 | Alfred Pitner | Universal joint |
US4067626A (en) * | 1976-08-19 | 1978-01-10 | Rockwell International Corporation | Universal bearing joint |
JPH0384424U (ja) * | 1989-12-18 | 1991-08-27 | ||
JPH0874878A (ja) * | 1994-09-05 | 1996-03-19 | Toyota Motor Corp | 連結装置 |
JP2002227872A (ja) * | 2001-02-06 | 2002-08-14 | Unisia Jecs Corp | カルダンジョイント |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2933505C2 (de) * | 1979-08-18 | 1983-11-10 | Uni-Cardan Ag, 5200 Siegburg | Kreuzgelenk |
DE3131000A1 (de) * | 1981-08-05 | 1983-02-24 | Uni-Cardan Ag, 5200 Siegburg | Kreuzgelenk |
DE3605746A1 (de) * | 1986-02-22 | 1987-08-27 | Klein Kg Eugen | Kreuzgelenk |
US4854738A (en) * | 1988-07-18 | 1989-08-08 | The Torrington Company | Tempered needle bearing with dimple |
US5580314A (en) * | 1993-03-29 | 1996-12-03 | Nsk Ltd. | Energy absorbing intermediate shaft |
US5725431A (en) * | 1996-09-26 | 1998-03-10 | Dana Corporation | Thrust washer for universal joint having preloading thrust surfaces |
CN2337345Y (zh) * | 1998-07-08 | 1999-09-08 | 张发刚 | 十字轴式万向联轴器 |
-
2004
- 2004-06-01 CN CNB2004800171828A patent/CN100392271C/zh not_active Expired - Fee Related
- 2004-06-01 US US10/561,254 patent/US20060258468A1/en not_active Abandoned
- 2004-06-01 EP EP04745624A patent/EP1653101A4/en not_active Withdrawn
- 2004-06-01 JP JP2005507195A patent/JPWO2004113752A1/ja not_active Withdrawn
- 2004-06-01 WO PCT/JP2004/007901 patent/WO2004113752A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3660989A (en) * | 1969-01-24 | 1972-05-09 | Alfred Pitner | Universal joint |
US4067626A (en) * | 1976-08-19 | 1978-01-10 | Rockwell International Corporation | Universal bearing joint |
JPH0384424U (ja) * | 1989-12-18 | 1991-08-27 | ||
JPH0874878A (ja) * | 1994-09-05 | 1996-03-19 | Toyota Motor Corp | 連結装置 |
JP2002227872A (ja) * | 2001-02-06 | 2002-08-14 | Unisia Jecs Corp | カルダンジョイント |
Non-Patent Citations (1)
Title |
---|
See also references of EP1653101A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7967102B2 (en) | 2005-10-31 | 2011-06-28 | Honda Motor Co., Ltd | Steering shaft support structure and vehicle |
Also Published As
Publication number | Publication date |
---|---|
CN1809705A (zh) | 2006-07-26 |
US20060258468A1 (en) | 2006-11-16 |
EP1653101A1 (en) | 2006-05-03 |
CN100392271C (zh) | 2008-06-04 |
EP1653101A4 (en) | 2008-03-26 |
JPWO2004113752A1 (ja) | 2006-08-03 |
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