WO2004090364A1 - 等速ジョイント及びその製造方法 - Google Patents
等速ジョイント及びその製造方法 Download PDFInfo
- Publication number
- WO2004090364A1 WO2004090364A1 PCT/JP2004/003627 JP2004003627W WO2004090364A1 WO 2004090364 A1 WO2004090364 A1 WO 2004090364A1 JP 2004003627 W JP2004003627 W JP 2004003627W WO 2004090364 A1 WO2004090364 A1 WO 2004090364A1
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- WO
- WIPO (PCT)
- Prior art keywords
- constant velocity
- wax
- roller member
- velocity joint
- trunnions
- Prior art date
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Classifications
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
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- 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
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
- F16D3/205—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
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- 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
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
- F16D2003/2026—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints with trunnion rings, i.e. with tripod joints having rollers supported by a ring on the trunnion
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- 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
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
- F16D3/205—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
- F16D3/2055—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having three pins, i.e. true tripod joints
Definitions
- the present invention relates to, for example, a constant velocity joint for connecting one transmission shaft and the other transmission shaft in a driving force transmission unit of an automobile, and an assembling method thereof.
- a general object of the present invention is to provide a constant velocity joint in which rolling elements are easily held.
- a main object of the present invention is to provide a method of manufacturing a constant velocity joint having a configuration capable of simplifying a mounting operation of a rolling element.
- Another object of the present invention is to provide a method of manufacturing a constant velocity joint capable of improving productivity of a constant velocity joint and reducing manufacturing cost.
- a plurality of guide grooves extending in the axial direction at predetermined intervals are provided on the inner peripheral surface, and a cylindrical fan member connected to one of the transmission shafts;
- a constant velocity joint having an inner member inserted into the open space of the outer member and connected to the other transmission shaft,
- a ring-shaped roller member that is in contact with the guide groove and that is externally fitted to the trunnion;
- a plurality of rolling elements rotatably interposed between the trunnion and the mouthpiece member;
- a plurality of guide grooves extending in the axial direction at predetermined intervals are provided on the inner peripheral surface, and a tubular outer member connected to one of the transmission shafts, A constant velocity joint having an inner member inserted into the inner space where the outer member opens and connected to the other transmission shaft;
- a ring-shaped roller member that is in contact with the guide groove and that is externally fitted to the trunnion; and a plurality of rolling elements rotatably interposed between the trunnion and the roller member.
- the plurality of rolling elements are supplied to the inner diameter portion of the roller member in a molten liquid state, and a constant velocity joint is provided which is held in the inner diameter portion by a solidified wax.
- the rolling element is mounted and held in the inner diameter portion of the roller member via wax or wax. That is, according to the present invention, it is not necessary to hold the rolling element by the keystone effect (see Japanese Patent Application Laid-Open No. 11-210776) unlike the prior art. In addition, since the rolling elements can be prevented from falling off, the work of mounting the rolling elements can be simplified.
- the term “wax” refers to an oil or fat having a consistency at room temperature of less than 300.
- the term “consistency” refers to the consistency of a very viscous substance that resists deformation. According to JIS standard K2220—5.3.2, the consistency is determined by placing a cone of a predetermined shape (mass 102.5 ⁇ 0.05 g) together with the holder (mass 45.50 ⁇ 0.02 g) in the sample. Vertically 5.0 ⁇ 0.1 sec It is determined by measuring the depth of penetration in the vertical direction at that time and multiplying the indicator reading by 10 times.
- wax refers to a substance that is solid at room temperature and melts at a temperature of about 70 to 10 Ot to become a liquid having a relatively low viscosity.
- Specific examples of such a wax include esters of fatty acids and alcohols. Since wax is inexpensive, the manufacturing cost of constant velocity joints can be reduced.
- the inner diameter portion of the roller member is formed in an L-shaped cross section by a single flange portion protruding inward in the radial direction and the annular concave portion. Therefore, the workability of the inner diameter portion of the roller member can be improved.
- the shape of the inner diameter portion of the roller member may be formed in an L-shaped cross section.
- the workability of the inner diameter portion of the roller member can be improved.
- the inner diameter portion of the roller member is formed between a pair of flange portions formed at both ends along the axial direction and projecting by a predetermined length toward the radial inside direction, and a pair of the flange portions. And an annular concave portion formed on the substrate. Then, the holding member may be attached to the inner diameter portion of the roller member having an L-shaped cross section.
- the trunnion is constituted by a cylindrical portion having a constant outer diameter and an enlarged portion formed to be larger than the outer diameter of the cylindrical portion, and a boundary between the cylindrical portion and the enlarged portion is formed. May be set so that the radius of curvature of the peripheral surface is larger than (the outer diameter of the cylindrical portion) ⁇ 0.1. Thereby, stress concentration on the stepped portion between the cylindrical portion and the enlarged diameter portion can be prevented, and the axial strength of the trunnion can be secured.
- annular member surrounding the peripheral surface of the trunnion at the starting point of the trunnion.
- a tubular auta member provided on an inner peripheral surface with a plurality of guide grooves extending in the axial direction at predetermined intervals, and an opening of the auta member is provided.
- a spider provided in the inner space and having a plurality of trunnions bulging toward the guide groove;
- a plurality of guide grooves extending in the axial direction and spaced apart from each other by a predetermined distance are provided on the inner peripheral surface of the cylindrical outer member, and the outer member is opened.
- Manufacture of a constant velocity joint having a spider provided in the inner space and having a plurality of trunnions bulging toward the guide groove, and a ring-shaped roller member which comes into contact with the guide groove and is fitted to the trunnion.
- the plurality of rolling elements are held in the inner diameter portion of the roller member by the wax. Therefore, it is not necessary to hold the rolling element using the keystone effect. Further, since the rolling elements can be prevented from falling off, the work of mounting the rolling elements can be simplified.
- the wax has a consistency lower than that of the lubricating grease sealed in the inner space of the outer member and has a consistency of 50 or more and less than 300 according to the JIS standard. In this case, even when the wax and the lubricating grease are mixed in the inner space of the auta member, it is possible to avoid affecting the performance of the lubricating grease.
- the roller member has a plurality of A first step of loading a number of rolling elements
- a roller member loaded with the rolling element is fitted to a trunnion of the spider.
- a method for manufacturing a constant velocity joint wherein a molten wax is supplied to a plurality of loaded rolling elements, and a solidification of the wax is performed to perform an opening holding step of holding the roll on a roller member. Is done.
- the row holding step may be performed before the first step.
- the rolling element to which the melted wax has adhered may be loaded into the inner diameter portion of the roller member.
- the wax holding step may be performed before the second step, or may be performed before or after the third step. In addition, it may be performed a plurality of times, such as before the second step and after the third step.
- a wax removing step of melting and removing the wax solidified in the wax holding step may be performed. This wax removal step may be performed before or after the third step.
- FIG. 1 is an enlarged longitudinal sectional view of a main part along a direction orthogonal to a longitudinal direction of the constant velocity joint according to the first embodiment.
- FIG. 2 is a longitudinal sectional view of a roller member constituting the constant velocity joint of FIG.
- FIG. 3 is an enlarged longitudinal sectional view of a main part of the constant velocity joint of FIG.
- FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.
- FIG. 5 is a partial longitudinal sectional view of a constant velocity joint according to a first modification of the first embodiment.
- FIG. 6 is a partial longitudinal sectional view of a constant velocity joint according to a second modification of the first embodiment.
- FIG. 7 is a partial longitudinal sectional view of a constant velocity joint according to a third modification of the first embodiment.
- FIG. 8 is a partial longitudinal sectional view of a constant velocity joint according to a fourth modification of the first embodiment.
- Fig. 9 is a partial vertical cross-sectional view of the roller member of Fig. 1 with a washer mounted on the inner diameter part c
- Fig. 10 is a partial vertical cross-sectional view of a flat-plated washer mounted instead of the washer shown in Fig. 7 It is.
- FIG. 11 is a characteristic diagram showing the relationship between the wax consistency and various characteristics of the needle bearing.
- FIG. 12 is a cross-sectional view showing a state where a plurality of needle bearings are loaded between the annular recess of the roller member and the jig by the first method.
- FIG. 13 is a cross-sectional view showing a state in which wax is injected into a space between the annular concave portion of the roller member and the jig after the needle bearing is loaded in FIG.
- FIG. 14 is a cross-sectional view showing a state in which wax is injected between the annular concave portion of the roller member and the jig before the twenty-first bearing is loaded by the second method.
- FIG. 15 is a cross-sectional view showing a state where wax is applied along the annular concave portion of the roller member by the third method.
- FIG. 16 is a cross-sectional view showing a state where a needle bearing is loaded along the annular concave portion after the wax is applied in FIG.
- FIG. 17 is a cross-sectional view showing a state where wax is further applied along the inner peripheral surface of the needle bearing arranged annularly in FIG.
- FIG. 18 is a cross-sectional view showing a state where wax is injected into the hole of the roller member by the fourth method.
- FIG. 19 is a cross-sectional view showing a state in which a dollar bearing is inserted into the wax injected in FIG.
- FIG. 20 is an enlarged horizontal sectional view of a main part of a constant velocity joint according to the second embodiment.
- FIG. 21 is a manufacturing flowchart of the constant velocity joint shown in FIG.
- FIG. 22 is a horizontal cross-sectional view showing a state in which a plurality of needle bearings are mounted between the annular concave portion of the roller member and the jig.
- FIG. 23 is a horizontal cross-sectional view showing a state where the brazing is filled between the annular concave portion of the roller member and the outer peripheral surface of the jig. .
- FIG. 24 is a horizontal cross-sectional view showing a state in which a roller member holding a plurality of 21 bearings in an inner diameter portion via a braze is removed from a jig.
- FIG. 25 is another manufacturing flowchart of the constant velocity joint shown in FIG.
- FIG. 26 is a horizontal cross-sectional view showing a state where a needle bearing is arranged in the inner diameter portion of the mouthpiece member.
- FIG. 27 is a horizontal cross-sectional view showing a state in which a gap between a jig and a roller member inserted into the jig is filled with a molten opening.
- FIG. 28 is a horizontal sectional view showing a state where a needle bearing is inserted into the gap after the wax is filled.
- FIG. 1 shows an enlarged longitudinal sectional view of a main part of the constant velocity joint according to the first embodiment.
- the constant velocity joint 10 is connected to one end of a first shaft (not shown), and has a cylindrical outer cup (ferrous member) 12 having a hole, and is fixed to one end of a second shaft 14. And an inner member 16 housed in the hole of the outer cup 12.
- three guide grooves 1 extend along the axial direction on the inner wall of the cup 12, and are spaced at 120 ° intervals around the axis. 8a to 18c are formed.
- the guide grooves 18 a to l 8 c include a ceiling portion 20 having a gentle curved cross section, and a sliding portion 2 having an arc-shaped cross section opposed to both sides of the ceiling portion 20. 2a and 2 2b.
- a ring-shaped spider 24 is externally fitted on the second shaft 14, and bulges toward the guide grooves 18 a to l 8 c on the outer peripheral surface of the spider 24, respectively, and around the axis.
- Three trunnions 26 a to 26 c are formed at intervals of 120 °.
- a ring-shaped mouthpiece member 30 is externally fitted to the outer peripheral portions of the trunnions 26a to 26c via a plurality of needle bearings (rolling elements) 28 shown in an enlarged manner in FIG.
- the outer peripheral surface of the roller member 30 corresponds to the cross-sectional shape of the driving portions 22a and 22b so as to make surface contact with the sliding portions 22a and 22b.
- Arc-shaped surface portion 32 formed by the above, a first annular inclined surface portion 36a continuous from the arc-shaped surface portion 32 to the upper surface 34, and a second annular inclined surface continuous from the arc-shaped surface portion 32 to the lower surface 38.
- Surface part 36b is
- a single flange portion 40 is formed at an upper portion (end portion) of the inner peripheral surface of the roller member 30 so as to protrude by a predetermined length in a radially inward direction.
- an annular concave portion 42 is formed through a gap with the outer peripheral surface of the trunnions 26 a to 26 c without any projection inward in the radial direction.
- the inner diameter portion of the roller member 30 is formed in an L-shaped cross section by the flange portion 40 and the annular concave portion 42.
- a plurality of needle bearings 28 are provided on the inner diameter of the roller member 30 in the circumferential direction.
- the needle bearings 28 are held so as not to fall off from the inner diameter portion of the roller member 30 by, for example, wax applied to the wall surface of the inner diameter portion, as described later.
- the plurality of needle bearings 28 mounted along the inner diameter portion of the mouthpiece member 30 each have substantially the same diameter and are formed in substantially the same shape.
- trunnions 26 a to 26 c are provided at a lower portion of the cylindrical portion 44 having a constant outer diameter and the cylindrical portion 44 adjacent to the spider 24. And an enlarged diameter portion 46 formed larger than the outer diameter of the cylindrical portion 44.
- a boundary portion between the cylindrical portion 44 and the enlarged diameter portion 46, that is, a starting portion of the cylindrical portion 44 close to the enlarged diameter portion 46 has a radius of curvature R1 as shown in FIG.
- a peripheral surface 48 formed by the ridges is formed.
- the radius of curvature R 1 of the peripheral surface portion 48 is formed smaller than the radius of curvature R 2 of the end corner portion 50 of the needle bearing 28 facing the peripheral surface portion 48 (that is, the radius of curvature R 2). , R 1 ⁇ R 2).
- the radius of curvature R 1 of the peripheral surface 48 at the starting point of the trunnions 26 a to 26 c is smaller than the radius of curvature R 2 of the corner 50 at the end of the twenty-first bearing 28.
- the constant velocity joint 10 according to the first embodiment is basically configured as described above. Next, an operation and an effect thereof will be described.
- the rotational force of the outer cup 12 is determined by the roller member 30 that comes into surface contact with the sliding portions 22 a and 22 b of the guide grooves 18 a to 18 c, and the annular concave portion 4 2 of the roller member 30.
- the trunnions 26a to 26c are transmitted to the trunnions 26a to 26c via a plurality of twenty-two bearings 28 held therein. Thereby, finally, the trunnions 26a to 26c
- the engaged second shaft 14 rotates.
- the trunnions 26 a to 26 c formed in a columnar shape center on the axis thereof. It rotates. With this rotation, the roller member 30 slides and displaces in the direction of the arrow A along the arc-shaped sliding portions 22a and 22b (see FIG. 1).
- the trunnions 26a to 26c are displaced along the axial direction (arrow B direction) of the trunnions 26a to 26c while being in line contact with the plurality of needle bearings 28 (FIG. 1). See).
- the trunnions 26 a to 26 c are arranged in a direction substantially perpendicular to the axis of the trunnions 26 a to 26 c for the rolling operation of the plurality of needle bearings 28 (perpendicular to the plane of FIG. 1). Direction).
- the flange portion 40 is provided only at one end (upper portion) of the inner diameter portion of the roller member 30, and the other end portion is formed as an annular concave portion 42 by a gap with the trunnions 26 a to 26 c.
- a grinding wheel (not shown) can easily enter the inner diameter of the roller member 30 through a gap where the flange portion 40 is not formed. Is easily performed, and the chips can be suitably discharged to the outside through the gap.
- the keystone effect which has been conventionally used can be reduced. It is not necessary to use the mounting method of the needle bearing 28 used, and since the needle bearing 28 is prevented from falling off, the mounting operation of the needle bearing 28 on the inner diameter portion of the roller member 30 is simple.
- the work of assembling the constant velocity joint 10 is simplified, the productivity is improved, and the manufacturing cost can be further reduced.
- the needle bearing 28 is mounted on the inner diameter of the roller member 30 without using the stone effect, the dimensions of the needle bearing 28, the spacing between the needle bearings 28, and the like are determined. The dimensional restrictions on become looser than when using the keystone effect. For this reason, the working operation on the inner diameter portion of the roller member 30 can be simplified.
- the plurality of needle bearings 28 are held on the inner diameter portion of the roller member 30 by the brazing, for example, vibration or the like is imparted to the roller member 30 in, for example, conveying and assembling the roller member 30. Even in this case, it is possible to easily prevent the needle bearing 28 from falling down and dropping from the inner diameter portion of the roller member 30.
- the curvature radius R 2 of the end corner portion 50 of 28 is set to be smaller than the radius R 2, and the wall surface 52 of the enlarged diameter portion 46 formed near the peripheral surface portion 48 functions as a contact surface. .
- the radius of curvature R 1 of the peripheral surface portion 48 at the starting point of the trunnions 26a to 26c is considered Is preferably set to be larger than (the outer diameter of the cylindrical portion 44) X 0.1.
- the trunnions 26a to 26c do not need to be provided with the enlarged diameter portion 46 in particular, and the trunnions 26a to 26c are formed only by the cylindrical portions 44 as shown in FIG. You may.
- the trunnions 26a to 26c may be provided with spherical surfaces 53.
- a ring-shaped washer (annular member) 54 surrounding the starting point may be provided in order to increase the axial strength of the trunnions 26a to 26c.
- the radius of curvature R1 of the peripheral surface portion 48 of the trunnions 26a to 26c is set to be larger than the radius of curvature R2 of the end corner portion 50 of the dollar bearing 28 to prevent stress concentration.
- the end corner 50 of the needle bearing 28 abuts on the washer 54 to avoid interference.
- An annular flat surface 56 with which the needle bearing 28 abuts is formed on the washer 54.
- the shape of the inner diameter portion of the roller member 30 is not particularly limited to the L-shaped cross section.
- a pair of flange portions 40a and 40b are formed at predetermined intervals in the axial direction of the trunnion 26a and project by a predetermined length in a radially inward direction.
- An annular concave portion 42 may be formed between the flange portions 40a and 40b.
- a holding member 43 may be attached to an inner diameter portion of the mouthpiece member 30 formed in an L-shaped cross section through an annular groove.
- the holding member 43 holds a plurality of needle bearings 28 interposed between the roller member 30 and the trunnions 26a to 26c, and is not particularly limited.
- Circlips, clips, press-fitting members, spring lock washers, spring washers, washers, retaining rings, retaining rings, spring washers, grip retaining rings, rings, and the like are preferable examples.
- rolling elements are not limited to the needle bearings 28, but may be any rolling bearings including rollers and the like.
- a flat plate-shaped washer 54a having an annular flat surface 56 may be used as shown in FIG.
- the constant velocity joint 10 configured as described above can be manufactured as follows.
- This wax has a lower fluidity than that of the lubricating daris sealed in the outer cup 12 via a joint boot (not shown), and is composed of an oil component which is harder and has a lower consistency than the lubricating grease.
- it is That is, in this case, even when the wax is mixed with the lubricating grease sealed in the auta cup 12 when assembled as the constant velocity joint 10, the performance of the lubricating grease is reduced. Those that have no effect are selected.
- the amount of wax applied is preferably about 0.3 g or more. If the amount of wax applied is less than 0.3 g, the holding force on the needle bearing 28 may not be sufficient, and there is a concern that the needle bearing 28 may fall off during transport of the assembled mouth member 30. You.
- the upper limit of the amount of wax to be applied is such that the characteristics of the lubricating grease are not degraded in view of the fact that the amount of lubricating grease enclosed in the holes of the It may be set to the amount.
- the main component of the wax is the same as the lubricating grease thickening agent, base oil and additive, the amount of wax applied is larger than when these components are not the same. You can do it. Further, the setting of the components of the lubricating grease when using the lubricating grease may be performed based on the value after mixing the wax.
- the wax consistency may be appropriately set in consideration of the size and mass of the needle bearing 28 or the impact and ambient temperature applied to the mouthpiece member 30 itself.
- a wax having a consistency of 50 or more and less than 300 is preferable, and a wax having a consistency of 100 or more and 250 or less is more preferable.
- a wax having a consistency in such a range it is possible to obtain a good needle holding performance, a good compatibility with grease for lubrication, a good compatibility with grease, and a good set of needle bearings 28.
- the wax may be heated to increase the fluidity, thereby increasing the consistency.
- the mouthpiece member 30 holding a plurality of 21 dollar bearings 28 inside the inner diameter portion through wax is connected to the trunnions 26 a to 26 c of the spider 24.
- the roller member 30 By inserting the roller member 30 into the trunnions 26 a to 26 c of the spider 24, the assembling work of the roller member 30 and the twenty-first bearing 28 is completed.
- the supply of the wax to the annular concave portion 42 of the roller member 30 can be performed, for example, as follows.
- a plurality of needle bearings 28 are annularly loaded between the annular concave portion 42 of the roller member 30 and the outer peripheral surface of the jig 60. .
- wax is injected into a space between the annular concave portion 42 of the roller member 30 and the outer peripheral surface of the jig 60 to thereby form a plurality of 21 dollar barrels. Ring 28 is held by the wax.
- a predetermined amount of wax is applied to the wall surface of the annular concave portion 42 of the roller member 30, and then, as shown in FIG.
- the needle bearing 28 is loaded along the annular recess 42 of the roller member 30. Further, as shown in FIG. 17, by applying a predetermined amount of wax again from the inner peripheral side of the plurality of annular bearings 28, the needle bearing 28 is made of wax. Will be retained.
- the constant velocity joint 100 according to the second embodiment uses a mouth instead of the wax used in the constant velocity joint 100 according to the first embodiment. . That is, in the constant velocity joint 100 according to the second embodiment, the needle bearing 28 is held by the roller member 30 via the brazing. Like the wax, the wax does not degrade the properties such as the coefficient of friction and the consistency of the lubricating grease enclosed in the outer cap 12 through the joint boot (not shown). It is preferable to select one that does not degrade the quality. In other words, the wax is preferably one that does not cause a chemical reaction with lubricating grease or joint boots. Specifically, Nippon Seisen's paraffin wax 140 can be mentioned.
- the second embodiment it is not necessary to adopt the mounting method of the needle bearing 28 utilizing the keystone effect.
- the needle bearing 28 is prevented from falling off, the operation of attaching the needle bearing 28 to the inner diameter portion of the roller member 30 can be simplified.
- the constant velocity joint 100 can be manufactured at low cost in this case.
- the constant velocity joint 100 configured as described above can be manufactured as follows in accordance with the flowchart shown in FIG.
- a plurality of needle bearings 28 are sequentially mounted one by one along the wall surface of the annular concave portion 42 formed in the inner diameter portion of the roller member 30. Thereafter, as shown in FIG. 22, the needle bearing 28 is pressed against the annular recess 42 with a jig 60 so that the twenty-first bearing 28 does not fall out of the annular recess 42. I do.
- wax is an ester of a fatty acid and an alcohol and is solid at room temperature. For this reason, the wax is heated and melted. The temperature at this time may be about 70 to 95 ° C.
- the roller member 30 with the needle bearing 28 attached thereto is immersed together with the jig 60 in a tank storing the molten wax.
- wax may be injected or injected so as to cover the outer surface of the two-dollar bearing 28.
- the molten wax may be applied from the outer surface of the dollar bearing 28.
- the gap between the annular concave portion 42 of the roller member 30 and the outer peripheral surface of the jig 60 is filled with the wax.
- the wax is cooled and solidified.
- the needle bearing 28 is firmly held on the wall surface of the annular concave portion 42 through the solidified wax (see FIG. 20). This prevents the needle bearing 28 from dropping off from the annular concave portion 42 during the transport / assembly operation.
- the amount of wax supply depends on the dimensions and mass of the 21 dollar bearing 28 or the roller material An appropriate amount may be set in consideration of various conditions such as impact applied to 30 and ambient temperature. Thereby, it has a good needle holding performance, a good assembling property of the needle bearing 28, and a smooth rotational resistance of the needle bearing 28 in the initial stage.
- the supply amount of the wax may be set based on the heat capacity of the needle bearing 28 and the roller member 30 made of a metal material.
- the flowing wax solidifies as heat is removed by the needle bearing 28 and the roller member 30 and further by the surrounding atmosphere. Therefore, the supply amount of the wax is such that, although a part of the wax is solidified by the needle bearing 28 and the roller member 30, a sufficient amount of the wax for holding the needle bearing 28 is provided by the opening member 30.
- the wax is adjusted by natural cooling so that the wax solidifies in a short time of about several minutes. There is no need for a special cooling step to solidify the wax. Therefore, the constant velocity joint 100 can be manufactured efficiently.
- the roller member 30 is engaged with each of the sliding portions 22 a and 22 b in the guide grooves 18 a to 18 c of the outer cup 12, and then the constant velocity joint 10 is covered with a joint boot. I do.
- the brazing since the brazing has been removed, it is possible to reliably prevent the joint boot and the lubricating grease sealed in the fitting boot from reacting with the brazing and being deteriorated.
- the roller member 30 is connected to the guide grooves 1.8 a to l 8 c of the After engaging the sliding portions 22a and 22b, the wax may be melted and removed by heating. In this case, the wax may be heated together with the auta cup 12. 25, the supply of the wax may be performed after the roller member 30 and the needle bearing 28 have been fitted into the trunnions 26a to 26c.
- the needle bearing 28 is disposed within the inner diameter of the roller member 30. In this case, there is no particular need to use the jig 60.
- the roller member 30 and the needle bearing 28 are fitted into the trunnions 26a to 26c.
- the position of the inserted roller member 30 may be anywhere in the trunnions 26a to 26c, although the guide groove of the auta cup 12 in the trunnions 26a to 26c is not particularly limited. It is preferable to dispose them at positions corresponding to the sliding portions 22a and 22b of 18a to 18c.
- the brazing is supplied so that the needle bearing 28 is covered, and the state shown in FIG. 23 is obtained.
- the roller member 30 is disposed at a position corresponding to each of the sliding portions 22 a and 22 b, the roller member 30 in which the needle bearing 28 is held by the brazing is a trunnion 26 a to 2
- the spider 24 inserted into 6 c can be easily engaged with each of the sliding portions 22 a and 22 b in the guide grooves 18 a to 18 c of the auta cup 12.
- the needle bearing 28 is connected to the mouthpiece member 30 before the mouthpiece member 30 is fitted to the trunnions 26a to 26c. May be held by a row.
- the roller member 30 is connected to the guide grooves 18a to l8 of the outer cup 12.
- the solder may be engaged with each of the sliding portions 22a and 22b in c.
- the wax is heated together with the auta cup 12 so that the wax is released from melting. You may.
- the constant velocity joint 100 can also be used without melting and removing the wax.
- FIG. 27 after the mouth member 30 is inserted into the jig 60, the molten liquid brazing is applied between the inner diameter portion of the roller member 30 and the jig 60.
- the needle bearing 28 may be loaded into the inner diameter as shown in FIG. Thereafter, when the roller member 30 and the needle bearing 28 are removed from the jig 60, the state shown in FIG. 23 is obtained.
- the melted wax may be attached to the needle bearing 28, and then the needle bearing 28 may be loaded into the inner diameter of the roller member 30. In this case, after each needle bearing 28 is immersed in the melted wax, it may be loaded into the inner diameter portion of the roller member 30 before the wax solidifies.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/552,400 US20060211502A1 (en) | 2003-04-08 | 2004-03-18 | Constant velocity joint and method of manufacturing the same |
EP04721633A EP1612438A4 (en) | 2003-04-08 | 2004-03-18 | HOMOKINETIC COUPLING AND MANUFACTURING METHOD THEREFOR |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-104092 | 2003-04-08 | ||
JP2003104092 | 2003-04-08 | ||
JP2004-067949 | 2004-03-10 | ||
JP2004067949A JP2004324881A (ja) | 2003-04-08 | 2004-03-10 | 等速ジョイント及びその組み付け方法 |
JP2004076205A JP2005265011A (ja) | 2004-03-17 | 2004-03-17 | 等速ジョイント及びその製造方法 |
JP2004-076205 | 2004-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004090364A1 true WO2004090364A1 (ja) | 2004-10-21 |
Family
ID=33162778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/003627 WO2004090364A1 (ja) | 2003-04-08 | 2004-03-18 | 等速ジョイント及びその製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060211502A1 (ja) |
EP (1) | EP1612438A4 (ja) |
MY (1) | MY138511A (ja) |
WO (1) | WO2004090364A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9167220B2 (en) | 2005-04-26 | 2015-10-20 | Thomson Licensing | Synchronized stream packing |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1726839A4 (en) * | 2004-03-02 | 2009-09-30 | Honda Motor Co Ltd | ARTICULATION AT CONSTANT SPEED |
JP4926584B2 (ja) * | 2006-07-18 | 2012-05-09 | Ntn株式会社 | トリポード型等速自在継手 |
JP5173213B2 (ja) * | 2007-02-28 | 2013-04-03 | 本田技研工業株式会社 | トリポート型等速ジョイント |
DE102007013934A1 (de) * | 2007-03-23 | 2008-09-25 | Schaeffler Kg | Transport- und Montagevorrichtung für Wälzkörpersätze |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56156522A (en) * | 1980-05-01 | 1981-12-03 | Ntn Toyo Bearing Co Ltd | Roller bearing having no retainer |
JPH07238940A (ja) * | 1994-02-28 | 1995-09-12 | Ntn Corp | ころ軸受 |
JPH08128452A (ja) * | 1994-10-31 | 1996-05-21 | Ntn Corp | 円筒ころ軸受の組立方法 |
JPH09291944A (ja) * | 1996-02-28 | 1997-11-11 | Nippon Seiko Kk | トリポード型等速ジョイント |
JPH10184717A (ja) * | 1996-12-26 | 1998-07-14 | Ntn Corp | トリポード型等速自在継手及びその製造方法 |
JPH11210776A (ja) | 1998-01-26 | 1999-08-03 | Honda Motor Co Ltd | 等速ジョイントおよびその製造方法 |
JP2003028186A (ja) * | 2002-07-08 | 2003-01-29 | Ntn Corp | トリポード型等速自在継手 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1907015A (en) * | 1931-11-19 | 1933-05-02 | Rollway Bearing Company Inc | Antifriction bearing |
US1982932A (en) * | 1934-02-17 | 1934-12-04 | Timken Roller Bearing Co | Taper roller and race assembly |
US3231397A (en) * | 1961-07-19 | 1966-01-25 | Procter & Gamble | Polishing composition |
GB997007A (en) * | 1962-09-26 | 1965-06-30 | Torrington Co | Improvements in bearings |
DE9321255U1 (de) * | 1993-08-12 | 1996-11-14 | Gkn Automotive Ag, 53797 Lohmar | Gleichlaufdrehgelenk |
DE4327036A1 (de) * | 1993-08-12 | 1995-02-16 | Gkn Automotive Ag | Gleichlaufdrehgelenk |
DE69737661T2 (de) * | 1996-02-05 | 2008-01-03 | Ntn Corp. | Gleichlauf-Universalgelenk mit drei Zapfen |
JPH1096430A (ja) * | 1996-09-20 | 1998-04-14 | Ntn Corp | トリポード型等速自在継手 |
WO2005050043A1 (ja) * | 2003-11-18 | 2005-06-02 | Honda Motor Co., Ltd. | 等速ジョイント及びその製造方法 |
-
2004
- 2004-03-18 EP EP04721633A patent/EP1612438A4/en not_active Withdrawn
- 2004-03-18 WO PCT/JP2004/003627 patent/WO2004090364A1/ja active Application Filing
- 2004-03-18 US US10/552,400 patent/US20060211502A1/en not_active Abandoned
- 2004-04-07 MY MYPI20041272A patent/MY138511A/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56156522A (en) * | 1980-05-01 | 1981-12-03 | Ntn Toyo Bearing Co Ltd | Roller bearing having no retainer |
JPH07238940A (ja) * | 1994-02-28 | 1995-09-12 | Ntn Corp | ころ軸受 |
JPH08128452A (ja) * | 1994-10-31 | 1996-05-21 | Ntn Corp | 円筒ころ軸受の組立方法 |
JPH09291944A (ja) * | 1996-02-28 | 1997-11-11 | Nippon Seiko Kk | トリポード型等速ジョイント |
JPH10184717A (ja) * | 1996-12-26 | 1998-07-14 | Ntn Corp | トリポード型等速自在継手及びその製造方法 |
JPH11210776A (ja) | 1998-01-26 | 1999-08-03 | Honda Motor Co Ltd | 等速ジョイントおよびその製造方法 |
JP2003028186A (ja) * | 2002-07-08 | 2003-01-29 | Ntn Corp | トリポード型等速自在継手 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1612438A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9167220B2 (en) | 2005-04-26 | 2015-10-20 | Thomson Licensing | Synchronized stream packing |
Also Published As
Publication number | Publication date |
---|---|
MY138511A (en) | 2009-06-30 |
US20060211502A1 (en) | 2006-09-21 |
EP1612438A4 (en) | 2007-08-29 |
EP1612438A1 (en) | 2006-01-04 |
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