KR20110026275A - Disc engaged to cross unit of universal jiont - Google Patents

Disc engaged to cross unit of universal jiont Download PDF

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Publication number
KR20110026275A
KR20110026275A KR1020090084100A KR20090084100A KR20110026275A KR 20110026275 A KR20110026275 A KR 20110026275A KR 1020090084100 A KR1020090084100 A KR 1020090084100A KR 20090084100 A KR20090084100 A KR 20090084100A KR 20110026275 A KR20110026275 A KR 20110026275A
Authority
KR
South Korea
Prior art keywords
disc
universal joint
cross unit
cross
trunnion
Prior art date
Application number
KR1020090084100A
Other languages
Korean (ko)
Inventor
이정균
Original Assignee
(주)성헌
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)성헌 filed Critical (주)성헌
Priority to KR1020090084100A priority Critical patent/KR20110026275A/en
Publication of KR20110026275A publication Critical patent/KR20110026275A/en

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Classifications

    • 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
    • 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
    • F16D3/40—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 with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
    • F16D3/41—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 with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes with ball or roller bearings
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/06—Lubrication details not provided for in group F16D13/74

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

The present invention relates to a disc for a cross unit disc of a universal joint which is disposed between the trunnion of the cross unit of the universal joint and the bearing cup, and prevents noise from being generated by the axial play between the trunnion of the cross unit and the bearing cup. will be.

In the cross-unit disk of the universal joint according to the present invention, a hollow portion 42 is formed in the center of the disc 41, and a plurality of guide groove lines 43 are formed in a circle on the front surface of the disc 41, and a disc A plurality of distribution grooves 44 for radially distributing and supplying lubricating oil are radially formed on the rear surface of the 41, and holes 45 are drilled from the distribution grooves 44 to the guide grooves 43. It is done.

Description

Disk for cross unit of universal joint {DISC ENGAGED TO CROSS UNIT OF UNIVERSAL JIONT}

The present invention relates to a disk mounted on a cross unit of a universal joint, and more particularly, is disposed between the trunnion and the bearing cup of the cross unit, and the noise is caused by the axial play between the trunnion and the bearing cup of the cross unit. It relates to a cross unit disk of a universal joint for preventing occurrence.

Republic of Korea Patent Application Publication No. 10-2008-0015685 (published February 20, 2008) is introduced "Spider and bearing assembly of the universal joint for automobiles".

The spider and the bearing assembly of the universal joint for the vehicle is provided at the lower end of the steering column is provided in the universal joint of the intermediate shaft for transmitting the operating force of the steering wheel to the steering gear, and the cylindrical coupling parts cross each other to form a cross. A spider, a needle bearing having a substantially cylindrical shape provided on the outer circumferential surface of the spider coupling portion to facilitate the rotation of the spider, a bearing cap provided on the outer circumferential surface of the needle bearing, and a lower end of one side of the needle bearing. A spider and bearing assembly comprising a ring, the spider comprising: an anti-vibration rubber in contact with an upper surface of the spider and having a predetermined elasticity and tension; And a needle bearing assembly provided on an inner circumferential surface of the bearing cap and including a thrust bearing coupled to the anti-vibration rubber, thereby preventing axial play of the spider.

However, the spider and bearing assembly of the universal joint for automobiles have a vibration-proof rubber simply formed in the shape of a disk, so that the surface friction between the vibration-proof rubber and the coupling part (trunnion) of the spider (cross unit) is large, and the cushioning and corrosion of the vibration-proof rubber There was a disadvantage in that a fine vibration occurs in the cross unit.

Therefore, an object of the present invention is a plurality of guide grooves are formed in a circular shape on the front surface of the disc, a plurality of distribution grooves for radially supplying the lubricant to the back of the disc is formed radially, the guide groove in the distribution groove line By drilling holes in the line, lubrication is supplied between the trunnion and the disc so that the friction between the trunnion and the disc is reduced by the lubricating oil, and the disc is made of hard bakelite material to form the shaft of the trunnion and the bearing cup. It is possible to provide a disc for a universal joint cross unit that can prevent inconsistencies, as well as prevent wear and deformation by frictional heat, thereby preventing fine vibrations.

Decks for the cross unit of the universal joint according to the present invention for achieving the above object is a hollow portion is formed in the center of the disc, a plurality of guide grooves are formed in a circular shape on the front of the disc, the lubricant on the back of the disc A plurality of distribution groove lines for distributed supply is formed radially, characterized in that a hole is drilled from the distribution groove line to the guide groove line.

The disc is made of a bakelite material.

As a result, the cross unit decks of the universal joint according to the present invention can be supplied with lubricating oil from the distribution groove line of the disc to the guide groove line, thereby reducing friction between the trunnion and the disc of the cross unit, and the bearing cup. By preventing the trunnion's central axis from being misaligned with the central axis of the trunnion, it is possible to prevent the occurrence of minute vibrations.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, in general, in the universal joint, yokes 11 and 12 formed at one end of an input shaft 10 and yokes 21 and 22 formed at one end of an output shaft 20 are connected by a cross unit 30. The power of the input shaft 10 is transmitted to the output shaft 20.

1 and 2, in the cross unit 30, four trunnions 32 are arranged crosswise on the body 31, and bearing cups 33 are mounted on each trunnion 32. The needle bearing 34 is disposed between the circumferential surface of the trunnion 32 and the inner circumferential surface of the bearing cup 33, and the disk (between the front end surface of the trinion 32 and the bottom surface of the bearing cup 33). 40) is arranged.

3 and 4, the disc 40 for the cross unit of the universal joint according to the present invention, the hollow portion 42 is formed in the center of the disc 41, a plurality of guides on the front surface of the disc 41 The grooves 43 (43a, 43b, 43c) are formed in a circular shape, and a plurality of distribution grooves 44 are radially formed on the rear surface of the disc 41 to distribute and supply lubricant oil. Hole 45 is drilled into the guide groove line 43.

Thereby, lubricating oil is supplied from the distribution groove line 44 to the 1st guide groove line 43a, the 2nd guide groove line 43b, and the 3rd guide groove line 43c through the hole 45, respectively.

Although three guide grooves 43 are shown in a circular shape in FIG. 3, the present invention is not limited thereto, and the number and shape of guide grooves can be modified according to the size of the disc. Those skilled in the art will readily appreciate, and it will be appreciated that the number and shape of such guide grooves also fall within the claims of the present invention.

In addition, the cross unit disk 40 of the universal joint according to the present invention is made of bakelite material.

The cross unit disk of the universal joint according to the present invention configured as described above acts as follows.

As shown in FIG. 5, the lubricating oil is supplied to the lubricating oil storage groove 33a formed in the bottom surface of the bearing cup 33 through the lubricating oil supply nipple 35 mounted on the bearing cup 33, and the lubricating oil storage groove ( At 33a), the lubricant is distributed to each of the radially distributed dispensing grooves 44 and fed from the dispensing grooves 44 through the holes 45 to the guide grooves 45, whereby the trunnions 32 of the cross unit. ) Is supplied to the front surface of the disc 41 in close contact with the As a result, the trunnion 32 rotates relatively smoothly with respect to the disc 41 by friction lubrication, thereby preventing the abrasion of the disc 41, and the disc 41 is made of bakelite material. It is possible to prevent the occurrence of minute vibrations by preventing any portion of is pressed by the trunnion 32 so that the central axis of the trunnion 32 does not coaxially deviate from the central axis of the bearing cup 33. .

1 is an exploded perspective view showing a universal joint

2 is a side cross-sectional view and a partially exploded cross-sectional view of the cross unit of FIG.

3 is a perspective view showing a disk for a cross unit of the universal joint according to the present invention;

Figure 4 is a bottom perspective view showing a disk for a cross unit of the universal joint according to the present invention

5 is an enlarged detailed view of a part (a) of FIG. 2;

Claims (2)

A hollow portion 42 is formed in the center of the disc 41, a plurality of guide groove line 43 is formed in a circular shape on the front surface of the disc 41, for dispersing and supplying lubricating oil to the back of the disc 41 A plurality of distribution groove lines (44) are radially formed, the universal joint cross-disc unit disc, characterized in that the hole (45) is drilled from the distribution groove line (44) to the guide groove line (43). The method of claim 1, The disc 41 is a cross-unit disk of the universal joint, characterized in that made of bakelite (bakelite) material.
KR1020090084100A 2009-09-07 2009-09-07 Disc engaged to cross unit of universal jiont KR20110026275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090084100A KR20110026275A (en) 2009-09-07 2009-09-07 Disc engaged to cross unit of universal jiont

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090084100A KR20110026275A (en) 2009-09-07 2009-09-07 Disc engaged to cross unit of universal jiont

Publications (1)

Publication Number Publication Date
KR20110026275A true KR20110026275A (en) 2011-03-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090084100A KR20110026275A (en) 2009-09-07 2009-09-07 Disc engaged to cross unit of universal jiont

Country Status (1)

Country Link
KR (1) KR20110026275A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817928A (en) * 2012-09-05 2012-12-12 中航工业哈尔滨轴承有限公司 Cross axle universal joint bearing
CN102966676A (en) * 2011-08-30 2013-03-13 日立汽车***株式会社 Universal joint and propeller shaft
CN103398094A (en) * 2013-07-26 2013-11-20 苏州天华有色金属制品有限公司 Disk with bidirectional circular sliding chutes
CN103591165A (en) * 2013-11-07 2014-02-19 河南三维重工有限公司 Oil-guiding end cover for cross-shaft type universal coupler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966676A (en) * 2011-08-30 2013-03-13 日立汽车***株式会社 Universal joint and propeller shaft
CN102817928A (en) * 2012-09-05 2012-12-12 中航工业哈尔滨轴承有限公司 Cross axle universal joint bearing
CN103398094A (en) * 2013-07-26 2013-11-20 苏州天华有色金属制品有限公司 Disk with bidirectional circular sliding chutes
CN103591165A (en) * 2013-11-07 2014-02-19 河南三维重工有限公司 Oil-guiding end cover for cross-shaft type universal coupler

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