JPS62278317A - Lubricating device in universal joint - Google Patents

Lubricating device in universal joint

Info

Publication number
JPS62278317A
JPS62278317A JP61122485A JP12248586A JPS62278317A JP S62278317 A JPS62278317 A JP S62278317A JP 61122485 A JP61122485 A JP 61122485A JP 12248586 A JP12248586 A JP 12248586A JP S62278317 A JPS62278317 A JP S62278317A
Authority
JP
Japan
Prior art keywords
grease
diameter
movable
tray
outer end
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP61122485A
Other languages
Japanese (ja)
Other versions
JPH063216B2 (en
Inventor
Kazuhiko Kuriyama
栗山 一彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECH RES ASSOC OPENAIR COAL MIN MACH
Original Assignee
TECH RES ASSOC OPENAIR COAL MIN MACH
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 TECH RES ASSOC OPENAIR COAL MIN MACH filed Critical TECH RES ASSOC OPENAIR COAL MIN MACH
Priority to JP61122485A priority Critical patent/JPH063216B2/en
Publication of JPS62278317A publication Critical patent/JPS62278317A/en
Publication of JPH063216B2 publication Critical patent/JPH063216B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/38Hooke'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
    • F16D3/40Hooke'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
    • F16D3/41Hooke'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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00Special features for couplings or clutches
    • F16D2300/06Lubrication details not provided for in group F16D13/74

Landscapes

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

Abstract

PURPOSE:To enable oil to be uniformly supplied to a bearing of four shafts, by constituting a crossed shaft structure such that repetition of its start and stop enables grease in a grease reservoir of the crossed shaft structure to be forcedly supplied by every fixed amount to the bearing of each shaft. CONSTITUTION:Crease is initially supplied from a nipple 17 of a grease filling hole 16 to a grease reservoir 14 of a crossed shaft structure 10. And the crossed shaft structure 10, if it rotates, moves a movable rod 25 and a movable receiving cup 27 to the outermost end position, opening a plug 26 while blocking a grease passage 24 by a peripheral wall of a small contour grease receiving part 27a. And the grease in the grease reservoir 14 passes through a grease hole 15 being allowed to flow into a large contour grease receiving part 27b. On the contrary, the crossed shaft structure 10, if it stops, moves the movable rod 25 and the movable receiving cup 27 to the innermost end position, closing the plug 26 while opening the grease passage 24. Consequently, the grease in the large contour grease receiving part 27b passes through the grease passage 24 being allowed to flow down into the small contour grease receiving part 27a.

Description

【発明の詳細な説明】 3、発明の詳細な説明 産業上の利用分野 この発明は、ユニバーサルジヨイントにおける潤W4装
置、さらに詳しくは、とくに高速回転するプロペラシャ
フトなどの継手部に好適なユニバーサルジヨイントの十
字軸体の各軸の端部とヨークの間の軸受にグリースを供
給するための装置に関する。
Detailed Description of the Invention 3. Detailed Description of the Invention Industrial Field of Application The present invention relates to a wet W4 device for a universal joint, and more specifically to a universal joint suitable for joints such as propeller shafts that rotate at high speed. The present invention relates to a device for supplying grease to bearings between the ends of each shaft of a cross shaft body and a yoke.

従来の技術とその問題点 たとえばプロペラシャフトなどの継手部に使用される高
速回転用のユニバーサルジヨイントとして、十字軸体の
各軸の外端部に軸受を介してヨークが回転自在に連結さ
れ、十字軸体に中心部のグリース溜めとこのグリース溜
めから各軸の外端面に達するグリース穴が設けられてお
り、各軸のグリース穴の外端部にグリース溜めから各軸
の軸受に供給されるグリースの量を制御するグリースバ
ルブが設けられたものが種々知られている。ところが、
このようなユニバーサルジヨイントでも、とくに高速回
転の場合に、十字軸体の中心部のグリース溜めに封入さ
れたグリースが遠心力により初期段階で外部に飛散して
しまうため、初期にグリース溜めに十分にグリースを封
入しても潤滑効果が低く、頻繁にグリースを補給しなけ
ればならないという問題がある。また、十字軸体の4つ
の軸の軸受のシールリップ緊迫力の相異により4個の軸
受に均等に給脂することが困難であるという問題がある
Conventional technology and its problems For example, as a universal joint for high-speed rotation used in joints such as propeller shafts, a yoke is rotatably connected to the outer end of each axis of a cross shaft via bearings. The cross shaft body has a central grease reservoir and a grease hole that reaches the outer end surface of each shaft from this grease reservoir, and the grease is supplied to the bearings of each shaft from the grease reservoir at the outer end of each shaft's grease hole. Various devices are known that are equipped with a grease valve that controls the amount of grease. However,
Even with such a universal joint, especially in the case of high-speed rotation, the grease sealed in the grease reservoir in the center of the cross shaft body is scattered to the outside due to centrifugal force at an early stage. Even if grease is filled in, the lubrication effect is low, and the problem is that grease must be replenished frequently. Further, there is a problem in that it is difficult to evenly grease the four bearings due to the difference in the seal lip tension forces of the bearings of the four axes of the cross shaft body.

この発明の目的は、上記の問題を全て解決したユニバー
サルジヨイントにおける潤滑装置を提供することにある
An object of the present invention is to provide a lubrication device for a universal joint that solves all of the above problems.

問題点を解因するための手段 この発明による潤滑装置は、 十字軸体の各軸の外端部に軸受を介してヨークが回転自
在に連結されているユニバーサルジヨイントにおいて、 ■ 十字軸体の中心部に設けられたグリース溜めと、 ■ このグリース溜めから各軸の外端面に達するグリー
ス穴と、 ■ 各軸のグリース穴の外端部にはめ止められ、かつ外
端部側が開口し内端部側の底の中心部に穴が形成された
固定受け皿と、 ■ この固定受け皿の底の穴に、少なくとも内端部側に
突出すように設けられた筒体と、■ この筒体の中に、
内外方向に移動しうるように隙間をあけて挿入された可
動棒と、■ この可動棒の外端部に設けられ、筒体の外
端部を開閉する栓と、 ■ 可動棒の内端部に可動棒とともに所定範囲を内外方
向に移動しうるように連結され、かつ外端部側が開口し
、筒体の内端部側の外周に摺動自在にはめられた小径グ
リース受け部と小径グリース受け部の外端部側にあって
グリース穴の内径より小さい外径を有する大径グリース
受け部とからなる可動受け皿と、■ 筒体の内端部と可
動受け皿の間に形成され、小径グリース受け部と大径グ
リース受け部を連通ずるグリース通路と を備えており、 可動棒および可動受け皿が最も内端部側に移動したとき
に栓が閉じて筒体のグリース通路が開き、可動棒および
可動受け皿が最も外端部側に移動したときに栓が開いて
小径グリース受け部の周壁により筒体のグリース通路が
塞がれ、かつ大径グリース受け部の外端部と固定費は皿
の底との間に常時−窓以上の隙間が保たれるようになさ
れているものである。
Means for Solving the Problems The lubricating device according to the present invention has the following features: In a universal joint in which a yoke is rotatably connected to the outer end of each shaft of the cross shaft through a bearing, A grease reservoir provided in the center; ■ A grease hole that reaches from this grease reservoir to the outer end surface of each shaft; ■ A fixed tray with a hole formed in the center of the bottom of the fixed tray; ■ A cylindrical body provided in the hole in the bottom of the fixed tray so as to protrude at least toward the inner end side; To,
A movable rod inserted with a gap so that it can move in the inward and outward directions; ■ A plug provided at the outer end of this movable rod to open and close the outer end of the cylinder; ■ An inner end of the movable rod. A small-diameter grease receiving part and a small-diameter grease receiving part are connected to each other so as to be able to move inward and outward within a predetermined range along with a movable rod, are open at the outer end, and are slidably fitted on the outer periphery of the inner end of the cylinder. A movable grease receiving tray is formed between the inner end of the cylindrical body and the movable receiving tray, and a large diameter grease receiving portion is located on the outer end side of the receiving portion and has an outer diameter smaller than the inner diameter of the grease hole. It is equipped with a grease passage that communicates between the receiving part and the large diameter grease receiving part, and when the movable rod and movable receiving tray move to the innermost end, the stopper closes and the grease passage in the cylinder opens, allowing the movable rod and the When the movable receiving tray moves to the outermost end, the stopper opens and the grease passage of the cylinder is blocked by the peripheral wall of the small diameter grease receiving part, and the outer end of the large diameter grease receiving part and the fixed cost are A gap larger than that of a window is always maintained between it and the bottom.

なお、この明細書において、内および外は十字軸体の放
射方向の内および外をいうものとする。
In this specification, inside and outside refer to inside and outside in the radial direction of the cross shaft body.

作     用 十字軸体のグリース溜めには、初期にグリースが給脂さ
れる。
The grease reservoir of the working cross shaft is initially filled with grease.

十字軸体が回転すると、可動棒および可動受け皿が遠心
力により最も外端部側に移動し、栓が開くとともに、可
動受け皿の小径グリース受け部の周壁が筒体のグリース
通路を塞ぐ。そして、十字軸体のグリース溜め内のグリ
ースは遠心力によりグリース穴を通って外端部側に移動
し、可動受け皿の大径グリース受け部と固定費は皿の底
の隙間から大径グリース受け部内に入る。このとき、大
径グリース受け部と小径グリース受け部の間のグリース
通路が塞がれているため、大径グリース受け部にグリー
スが満された状態で平衡になり、グリースの移動は停止
する。
When the cross shaft rotates, the movable rod and the movable tray move toward the outermost end due to centrifugal force, the stopper opens, and the peripheral wall of the small diameter grease receiving portion of the movable tray closes the grease passage of the cylinder. Then, the grease in the grease reservoir of the cross shaft moves to the outer end side through the grease hole due to centrifugal force, and the large diameter grease receiver of the movable saucer and the fixed cost move from the gap at the bottom of the tray to the large diameter grease receiver. Enter the club. At this time, since the grease passage between the large-diameter grease receiving part and the small-diameter grease receiving part is blocked, an equilibrium is reached with the large-diameter grease receiving part filled with grease, and the movement of the grease stops.

十字軸体が停止すると、上方に停止した軸においては、
可動棒および可動受け皿が重力により最も内端部側に移
動し、栓が閉じるとともに、筒体のグリース通路が開く
。このため、回転中に大径グリース受け部に溜まったグ
リースはこのグリース通路を通って小径グリース受け部
内に流下する。また、栓が閉じているため、グリース穴
の外端部および固定費は皿内のグリースが下方に戻るこ
とはない。
When the cross axis body stops, the axis that stopped upwards will have
The movable rod and the movable tray move toward the innermost end due to gravity, the stopper closes, and the grease passage in the cylinder opens. Therefore, the grease accumulated in the large-diameter grease receiver during rotation flows down into the small-diameter grease receiver through this grease passage. Also, since the stopper is closed, the grease in the pan will not return downward at the outer end of the grease hole and at the fixed cost.

十字軸体が再び回転すると、前記同様に、栓が開くとと
もに、筒体のグリース通路が閉じる。
When the cross shaft rotates again, the stopper opens and the grease passage in the cylinder closes, as before.

このため、停止中に小径グリース受け部に溜まっていた
グリースだけが筒体および固定費は皿内を通って軸受に
供給される。
Therefore, only the grease accumulated in the small-diameter grease receiving portion during the stop is supplied to the bearing through the cylinder and the fixed plate.

そして、このような十字軸体の起動、停止を繰返すこと
により、グリース溜め内のグリースがほぼ一定量ずつ徐
々に軸受に給脂される。
By repeating such activation and stopping of the cross shaft body, the grease in the grease reservoir is gradually supplied to the bearing in a substantially constant amount.

実  施  例 以下、図面を参照して、この発明の詳細な説明する。Example Hereinafter, the present invention will be described in detail with reference to the drawings.

第3図はユニバーサルジヨイントの十字軸体(10)の
一部を示し、この十字軸体(10)の各軸(10a)の
外端部には、たとえば針状ころ軸受またはころ軸受など
のころがり軸受(11)を介してヨーク(12)が回転
自在に連結されている。軸受(11)のケース(lla
)は軸(10a)の外端面と周囲を覆っており、ケース
(11a)の内端部には軸(10a)との間を密封する
シール(13)が取付けられている。十字軸体(10)
には、中心部のグリース溜め(14)と、グリース溜め
(14)から各軸(10a)の外端面に達する放射状の
グリース穴(15)と、グリース溜め(14)から軸(
10a)相互間の外端面に達するグリース注入穴(16
)が設けられており、グリース注入穴(16)の外端部
にグリースニップル(17)が取付けられている。各軸
(10a)のグリース穴(15)の外端部には他の部分
より内径の大きいバルブ収容部(15a)が形成され、
各軸(10a)の端面には放射状のみぞ(18)が形成
されている。また、バルブ収容部(15a)に対向する
軸受(11)のケース(lla)の内面に、浅い円形凹
所(19)が形成されている。そして、各軸(10a)
のバルブ収容部(15a)にそれぞれグリースバルブ(
20)が挿入されている。
Figure 3 shows a part of the cross shaft (10) of the universal joint, and the outer end of each shaft (10a) of the cross shaft (10) is equipped with a needle roller bearing or a roller bearing, for example. A yoke (12) is rotatably connected via a rolling bearing (11). Bearing (11) case (lla
) covers the outer end surface and periphery of the shaft (10a), and a seal (13) is attached to the inner end of the case (11a) to seal between the case (11a) and the shaft (10a). Cross shaft body (10)
includes a central grease reservoir (14), radial grease holes (15) reaching from the grease reservoir (14) to the outer end surface of each shaft (10a), and a grease hole (15) extending from the grease reservoir (14) to the shaft (10a).
10a) Grease injection holes (16
), and a grease nipple (17) is attached to the outer end of the grease injection hole (16). A valve accommodating portion (15a) having a larger inner diameter than other portions is formed at the outer end of the grease hole (15) of each shaft (10a),
A radial groove (18) is formed in the end face of each shaft (10a). Further, a shallow circular recess (19) is formed on the inner surface of the case (lla) of the bearing (11) facing the valve housing portion (15a). And each axis (10a)
Grease valves (
20) has been inserted.

第1図および第2図はグリースバルブ(20)の詳細を
示しており、このバルブ(20)は次のように構成され
ている。
1 and 2 show details of the grease valve (20), which is constructed as follows.

バルブ収容部(15a)の外端部に、固定受け皿(21
)がはめ止められている。固定受け皿(21)は外端部
側が開口した円筒状をなし、内端部側の底の中心部にあ
けられた穴(22)の周囲に内端部側に突出した短円筒
状の突部(21a)が一体に形成されている。この突部
(21a)に、内外両端が開口した筒体(23)がは′
め止められている。筒体(23)の一端部は固定受け皿
(21)の底より少し外端部側に突出し、他端部は突部
(21a)より良く内端部側に突出しており、この筒体
(23)の内端部には複数の切欠き状のグリース通路(
24)が形成されている。筒体(23)の中に、これよ
り細い可動棒(25)が内外方向に移動しうるように隙
間をあけて挿入されている。可動棒(25)の外端部に
は、筒体(23)の外端部を開閉する円板状の栓(26
)が−林状に設けられている。可動棒(25)の内端部
には、外端部側が開口した段付円筒状の可動受け皿(2
7)の底の中心部がはめられ、可動棒(25)に固定さ
れた止め輪(28)により保持されている。可動受け皿
(27)は、筒体(23)の内端部側の外周に摺動自在
にはめられた小径グリース受け部(27a)と、小径グ
リース受け部(27a)の外端部側に一体に形成された
大径グリース受け部(27b)とからなり、大径グリー
ス受け部(27b)の外径はバルブ収容部(15a)の
内径より少し小さい。可動受け皿(27)は可動棒(2
5)とともに、第1図のような最も内端部側の位置(最
内端位置)と第2図のような最も外端部側の位置(最外
端位置)との間を移動しうる。そして、可動棒(25)
および可動受け皿(27)が最内端位置に移動したとき
には、栓(26)が筒体(23)の外端部に接して閉じ
、筒体(23)のグリース通路(24)が開いて小径グ
リース受け部(27a)と大径グリース受け部(27b
)が連通ずる。逆に、可動棒(25)および可動受け皿
(27)が最外端位置に移動したときには、栓(26)
が筒体(23)から離、れて開き、小径グリース受け部
(27a)の周壁により筒体(23)のグリース通路(
24)が塞がれる。また、可動受け皿(27)が最外端
位置に移動したとき−でも、大径グリース受け部(27
b)と固定受け皿(21)の底の間に一定の隙間が保た
れるようになっている。
A fixed tray (21) is attached to the outer end of the valve housing portion (15a).
) is stuck. The fixed tray (21) has a cylindrical shape with an open outer end, and a short cylindrical protrusion protrudes toward the inner end around a hole (22) made in the center of the bottom on the inner end. (21a) are integrally formed. A cylindrical body (23) with both inner and outer ends open is attached to this protrusion (21a).
I'm being held back. One end of the cylindrical body (23) protrudes slightly toward the outer end from the bottom of the fixed tray (21), and the other end protrudes more toward the inner end than the protrusion (21a). ) has multiple notched grease passages (
24) is formed. A thinner movable rod (25) is inserted into the cylindrical body (23) with a gap therebetween so that it can move inward and outward. At the outer end of the movable rod (25), there is a disc-shaped stopper (26) that opens and closes the outer end of the cylinder (23).
) are arranged in a forest shape. At the inner end of the movable rod (25) is a stepped cylindrical movable tray (2) with an open outer end.
7) is fitted into the center of the bottom and held by a retaining ring (28) fixed to the movable rod (25). The movable tray (27) has a small-diameter grease receiver (27a) slidably fitted on the outer periphery of the inner end of the cylinder (23), and an integral part of the outer end of the small-diameter grease receiver (27a). The outer diameter of the large diameter grease receiving portion (27b) is slightly smaller than the inner diameter of the valve accommodating portion (15a). The movable tray (27) is attached to the movable rod (2
5), it can move between the innermost position (innermost position) as shown in Figure 1 and the outermost position (outermost position) as shown in Figure 2. . And the movable rod (25)
When the movable tray (27) moves to the innermost position, the stopper (26) closes in contact with the outer end of the cylinder (23), and the grease passage (24) of the cylinder (23) opens to reduce the diameter. Grease receiver (27a) and large diameter grease receiver (27b)
) are connected. Conversely, when the movable rod (25) and the movable tray (27) move to the outermost position, the stopper (26)
is separated from the cylinder (23) and opens, and the peripheral wall of the small diameter grease receiving part (27a) opens the grease passage (23) of the cylinder (23).
24) is blocked. Furthermore, even when the movable grease tray (27) moves to the outermost position, the large diameter grease tray (27)
b) and the bottom of the fixed tray (21) so that a certain gap is maintained.

上記のユニバーサルジヨイントにおいて、十字軸体(1
0)のグリース溜め(14)には、初期に、グリース注
入穴(16)のニップル(17)からグリースが給脂さ
れる。
In the above universal joint, the cross shaft body (1
The grease reservoir (14) of No. 0) is initially supplied with grease from the nipple (17) of the grease injection hole (16).

十字軸体(10)が回転すると、可動棒(25)および
可動受け皿(27)が遠心力により第2図のように最外
端位置に移動し、栓(26)が開くとともに、可動受け
皿(27)の小径グリース受け部(27a)の周壁が筒
体(23)のグリース通路(24)を塞ぐ。そして、グ
リース溜め(14)内のグリースは遠心力によりグリー
ス穴(15)を通って外端部側に移動し、可動受け皿(
27)の大径グリース受け部(27b)と固定受け皿(
21)の底の隙間から大径グリース受け部(27b)内
に入る。このとき、大径グリース受け部(27b)と小
径グリース受け部(27a)の間のグリース通路(24
)が塞がれているため、大径グリース受け部(27b)
にグリースが満された状態で平衡になり、グリースの移
動は停止する。
When the cross shaft (10) rotates, the movable rod (25) and the movable tray (27) move to the outermost position as shown in Fig. 2 due to centrifugal force, the stopper (26) opens, and the movable tray (27) moves to the outermost position as shown in Fig. 2. The peripheral wall of the small-diameter grease receiving portion (27a) of 27) closes the grease passage (24) of the cylindrical body (23). Then, the grease in the grease reservoir (14) moves to the outer end side through the grease hole (15) due to centrifugal force, and
27) large diameter grease receiving part (27b) and fixed receiving tray (
21) into the large diameter grease receiving part (27b). At this time, the grease passage (24) between the large diameter grease receiving part (27b) and the small diameter grease receiving part (27a)
) is blocked, the large diameter grease receiving part (27b)
Equilibrium is reached when the area is filled with grease, and the movement of grease stops.

十字軸体(10)が停止すると、上方に停止した軸(1
0a)においては、可動棒(25)および可動受け皿(
27)が重力により第1図のように最内端位置に移動し
、栓(26)が閉じるとともに、筒体(23)のグリー
ス通路(24)が開く。このため、回転中に大径グリー
ス受け部(27b)に溜まったグリースはこのグリース
通路(24)を通って小径グリース受け部(27a)内
に流下する。また、栓(26)が閉じているため、グリ
ース穴の外端部および固定受け皿(21)内のグリース
が下方に戻ることはない。
When the cross shaft body (10) stops, the shaft (1
In 0a), the movable rod (25) and the movable tray (
27) is moved by gravity to the innermost position as shown in FIG. 1, the plug (26) is closed, and the grease passage (24) of the cylinder (23) is opened. Therefore, the grease accumulated in the large diameter grease receiving part (27b) during rotation flows down into the small diameter grease receiving part (27a) through this grease passage (24). Further, since the plug (26) is closed, the grease in the outer end of the grease hole and in the fixed saucer (21) does not return downward.

十字軸体(10)が再び回転すると、前記同様に、栓(
26)が開くとともに、筒体(23)のグリース通路(
24)が閉じる。このため、停止中に小径グリース受け
部(27a)に溜まっていたグリースだけが筒体(23
)を通って固定受け皿(21)内に供給され、固定受け
皿(21)内のグリースは、軸受(11)のケース(1
1a)の凹所(19)および軸(10a)のみぞ(18
)を通って軸受(11)に供給される。
When the cross shaft (10) rotates again, the plug (
26) opens, and the grease passage (23) of the cylinder body (23) opens.
24) closes. Therefore, only the grease that had accumulated in the small diameter grease receiving portion (27a) during the stoppage is removed from the cylinder (23).
) into the fixed tray (21), and the grease in the fixed tray (21) is supplied to the case (1) of the bearing (11).
1a) and the groove (18) in the shaft (10a).
) is supplied to the bearing (11).

そして、このような十字軸体(10)の起動、停止を繰
返すことにより、グリース溜め(14)内のグリースが
ほぼ一定量ずつ徐々に軸受(11)に給脂される。この
ため、グリース溜め(14)内のグリースが初期段階で
外部に飛散してしまうようなことがなく、グリースを定
期的に補給すればよい。また、4つの軸(10a)の軸
受(11)にグリースがほぼ一定量ずつ強制的に供給さ
れるので、これらの軸受(10)に均等に給脂すること
ができる。
By repeating the activation and stopping of the cross shaft (10), the grease in the grease reservoir (14) is gradually supplied to the bearing (11) in a substantially constant amount. Therefore, the grease in the grease reservoir (14) does not scatter to the outside in the initial stage, and it is only necessary to periodically replenish the grease. Further, since the grease is forcibly supplied to the bearings (11) of the four shafts (10a) in substantially constant amounts, these bearings (10) can be evenly lubricated.

なお、十字軸体(10)が停止したときに可動棒(25
)および可動受け皿(27)が最内端位置に戻るのを確
実にするために、固定受け皿(21)の底と可動受け皿
(27)の大径グリース受け部(27b)の底の間など
に圧縮コイルばねを設けてもよい。
In addition, when the cross shaft body (10) stops, the movable rod (25
) and the movable saucer (27) return to the innermost position, between the bottom of the fixed saucer (21) and the bottom of the large diameter grease receiver (27b) of the movable saucer (27), etc. A compression coil spring may also be provided.

このとき、ばねの強さは、十字軸体(10)が回転した
ときに可動棒(25)および可動受け皿(27)が遠心
力によりばね力に打勝って確実に最外端位置まで移動で
きる程度のものにする。また、ユニバーサルジヨイント
の他の部分の構成も、上記実施例のものに限らず、適宜
変更可能である。
At this time, the strength of the spring is such that when the cross shaft (10) rotates, the movable rod (25) and the movable tray (27) can overcome the spring force due to centrifugal force and move reliably to the outermost position. Make it something of a degree. Furthermore, the configurations of other parts of the universal joint are not limited to those of the above embodiments, and can be modified as appropriate.

たとえば、可動受け皿(27)の小径グリース受け部(
27a)と大径グリース受け部(27b)を連通ずるグ
リース通路は、筒体(23)の内端部側に穴をあけたり
、筒体(23)の内端部外周面または小径グリース受け
部(27a)の内周面にみぞを設けたりすることにより
形成することもできる。
For example, the small diameter grease receiving portion (
27a) and the large-diameter grease receiving portion (27b) can be formed by making a hole on the inner end side of the cylinder (23), or by opening a hole on the outer peripheral surface of the inner end of the cylinder (23) or the small-diameter grease receiving portion. It can also be formed by providing a groove on the inner peripheral surface of (27a).

発明の効果 この発明による潤滑装置は、上述の構成3有するので、
十字軸体が起動、停止を繰返すことにより、十字軸体の
グリース溜め内のグリースを各軸の軸受にほぼ一定量ず
つ強制的に供給することができる。このため、4つの軸
の軸受に均等に給脂することができ、しかもグリース溜
め内のグリースが初期段階で外部に飛散してしまうよう
なことがない。したがって、比較的長時間にわたって高
い潤滑効果を発揮することができ、定期的にグリースを
補給するだけですむ。
Effects of the Invention Since the lubricating device according to the present invention has the above-mentioned configuration 3,
By repeatedly starting and stopping the cross shaft, the grease in the grease reservoir of the cross shaft can be forcibly supplied to the bearings of each shaft in a substantially constant amount. Therefore, the bearings of the four shafts can be evenly lubricated, and the grease in the grease reservoir does not scatter to the outside in the initial stage. Therefore, a high lubrication effect can be exhibited for a relatively long period of time, and it is only necessary to periodically replenish the grease.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の実施例を示す潤滑装置の主要部の垂
直断面図、第2図は第1図と同じ部分の異なる状態を示
す垂直断面図、第3図は潤滑装置が設けられたユニバー
サルジヨイントの十字軸体の一部を示す垂直断面図であ
る。 (10)・・・十字軸体、(10a)・・・軸、(11
)・・・軸受、(12)・・・ヨーク、(14)・・・
グリース溜め、(15)グリース穴、(15a)・・・
バルブ収容部、(20)・・・グリースバルブ、(21
)・・・固定量は皿、(22)・・・穴、(23)・・
・筒体、(24)・・・グリース通路、(25)・・・
可動棒、(26)・・・栓、(27)・・・可動受け皿
、(27a)・・・小径グリース受け部、(27b)・
・・大径グリース受け部。 以上 特許出願人  光洋精工株式会社 代 理 人  岸本 瑛之助(外4名)第3図
Fig. 1 is a vertical sectional view of the main part of a lubricating device showing an embodiment of the present invention, Fig. 2 is a vertical sectional view showing the same part as Fig. 1 in a different state, and Fig. 3 is a vertical sectional view of the main part of a lubricating device provided with the lubricating device. FIG. 3 is a vertical sectional view showing a part of the cross shaft of the universal joint. (10)...Cross shaft body, (10a)...Axis, (11
)...Bearing, (12)...Yoke, (14)...
Grease reservoir, (15) grease hole, (15a)...
Valve housing part, (20)... Grease valve, (21
)...Fixed amount is plate, (22)...hole, (23)...
・Cylinder, (24)... Grease passage, (25)...
Movable rod, (26)...Plug, (27)...Movable saucer, (27a)...Small diameter grease receiver, (27b)...
...Large diameter grease receiving part. Patent applicant: Koyo Seiko Co., Ltd. Representative: Einosuke Kishimoto (4 others) Figure 3

Claims (1)

【特許請求の範囲】 十字軸体(10)の各軸(10a)の外端部に軸受(1
1)を介してヨーク(12)が回転自在に連結されてい
るユニバーサルジョイントにおいて、 [1]十字軸体(10)の中心部に設けられたグリース
溜め(14)と、 [2]このグリース溜め(14)から各軸(10a)の
外端面に達するグリース穴(15)と、 [3]各軸(10a)のグリース穴(15)の外端部に
はめ止められ、かつ外端部側が開口し内端部側の底の中
心部に穴(22)が形成された固定受け皿(21)と、 [4]この固定受け皿(21)の底の穴(22)に、少
なくとも内端部側に突出すように設けられた筒体(23
)と、 [5]この筒体(23)の中に、内外方向に移動しうる
ように隙間をあけて挿入された可動棒(25)と、 [6]この可動棒(25)の外端部に設けられ、筒体(
23)の外端部を開閉する栓(26)と、[7]可動棒
(25)の内端部に可動棒(25)とともに所定範囲を
内外方向に移動しうるように連結され、かつ外端部側が
開口し、筒体(23)の内端部側の外周に摺動自在には
められた小径グリース受け部(27a)と小径グリース
受け部(27a)の外端部側にあってグリース穴(15
)の内径より小さい外径を有する大径グリース受け部(
27b)とからなる可動受け皿(27)と、[8]筒体
(23)の内端部と可動受け皿(27)の間に形成され
、小径グリース受け部(27a)と大径グリース受け部
(27b)を連通するグリース通路(24)と を備えており、 可動棒(25)および可動受け皿(27)が最も内端部
側に移動したときに栓(26)が閉じて筒体(23)の
グリース通路(24)が開き、可動棒(25)および可
動受け皿(27)が最も外端部側に移動したときに栓(
26)が開いて小径グリース受け部(27a)の周壁に
より筒体(23)のグリース通路(24)が塞がれ、か
つ大径グリース受け部(27b)の外端部と固定受け皿
(25)の底との間に常時一定以上の隙間が保たれるよ
うになされているユニバーサルジョイントにおける潤滑
装置。
[Claims] A bearing (1
1) A universal joint in which a yoke (12) is rotatably connected to the yoke (12) includes: [1] a grease reservoir (14) provided at the center of the cross shaft body (10); and [2] this grease reservoir. Grease hole (15) reaching from (14) to the outer end surface of each shaft (10a); [3] Fitted into the outer end of the grease hole (15) of each shaft (10a) and open on the outer end side. a fixed tray (21) with a hole (22) formed in the center of the bottom on the inner end side; A cylindrical body (23
), [5] a movable rod (25) inserted into this cylinder (23) with a gap so as to be able to move in the inward and outward directions, and [6] the outer end of this movable rod (25). The cylindrical body (
[7] A plug (26) that opens and closes the outer end of the movable rod (25); A small-diameter grease receiver (27a) is open at the end and is slidably fitted on the outer periphery of the inner end of the cylinder (23). hole (15
) with a smaller outer diameter than the inner diameter of the large diameter grease receiver (
[8] A movable tray (27) formed between the inner end of the cylindrical body (23) and the movable tray (27), consisting of a small-diameter grease tray (27a) and a large-diameter grease tray (27b); 27b), and when the movable rod (25) and the movable tray (27) move to the innermost end, the stopper (26) closes and the cylindrical body (23) When the grease passage (24) opens and the movable rod (25) and movable tray (27) move to the outermost end, the plug (
26) opens, the peripheral wall of the small-diameter grease receiver (27a) closes the grease passage (24) of the cylinder (23), and the outer end of the large-diameter grease receiver (27b) and the fixed receiver (25) are closed. A lubrication device for a universal joint that is designed to maintain a constant gap between the bottom and the bottom of the universal joint.
JP61122485A 1986-05-27 1986-05-27 Lubricating device for universal joint Expired - Lifetime JPH063216B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61122485A JPH063216B2 (en) 1986-05-27 1986-05-27 Lubricating device for universal joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61122485A JPH063216B2 (en) 1986-05-27 1986-05-27 Lubricating device for universal joint

Publications (2)

Publication Number Publication Date
JPS62278317A true JPS62278317A (en) 1987-12-03
JPH063216B2 JPH063216B2 (en) 1994-01-12

Family

ID=14837013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61122485A Expired - Lifetime JPH063216B2 (en) 1986-05-27 1986-05-27 Lubricating device for universal joint

Country Status (1)

Country Link
JP (1) JPH063216B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04128532U (en) * 1991-05-17 1992-11-24 株式会社アツギユニシア universal joint
US5389039A (en) * 1993-04-14 1995-02-14 The Zeller Corporation Universal joint lubricant retainer
JP2005344857A (en) * 2004-06-03 2005-12-15 Koyo Seiko Co Ltd Cross-shaped shaft joint
EP1706656A1 (en) * 2004-01-16 2006-10-04 Federal-Mogul Corporation Universal joint washer baffle
US7140965B2 (en) * 2004-07-07 2006-11-28 Torque-Traction Technologies Llc Lubrication system for a universal joint cross
US8182350B2 (en) 2004-06-03 2012-05-22 Jtekt Corporation Sealing structure and spider joint
IT202000022045A1 (en) * 2020-09-18 2022-03-18 Bondioli & Pavesi S P A SPIDER FOR CARDAN JOINT, CARDAN JOINT INCLUDING THE CARDAN JOINT, AND CARDAN SHAFT INCLUDING THE CARDAN JOINT

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04128532U (en) * 1991-05-17 1992-11-24 株式会社アツギユニシア universal joint
US5389039A (en) * 1993-04-14 1995-02-14 The Zeller Corporation Universal joint lubricant retainer
EP1706656A1 (en) * 2004-01-16 2006-10-04 Federal-Mogul Corporation Universal joint washer baffle
EP1706656A4 (en) * 2004-01-16 2011-08-31 Federal Mogul Corp Universal joint washer baffle
JP2005344857A (en) * 2004-06-03 2005-12-15 Koyo Seiko Co Ltd Cross-shaped shaft joint
US8182350B2 (en) 2004-06-03 2012-05-22 Jtekt Corporation Sealing structure and spider joint
US7140965B2 (en) * 2004-07-07 2006-11-28 Torque-Traction Technologies Llc Lubrication system for a universal joint cross
IT202000022045A1 (en) * 2020-09-18 2022-03-18 Bondioli & Pavesi S P A SPIDER FOR CARDAN JOINT, CARDAN JOINT INCLUDING THE CARDAN JOINT, AND CARDAN SHAFT INCLUDING THE CARDAN JOINT
WO2022058783A1 (en) * 2020-09-18 2022-03-24 Bondioli & Pavesi S.P.A. Spider for a cardan joint, cardan joint comprising the spider, and drive shaft comprising the cardan joint

Also Published As

Publication number Publication date
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