JPH0599243A - Spline part lubrication device of universal joint - Google Patents

Spline part lubrication device of universal joint

Info

Publication number
JPH0599243A
JPH0599243A JP25370191A JP25370191A JPH0599243A JP H0599243 A JPH0599243 A JP H0599243A JP 25370191 A JP25370191 A JP 25370191A JP 25370191 A JP25370191 A JP 25370191A JP H0599243 A JPH0599243 A JP H0599243A
Authority
JP
Japan
Prior art keywords
spline
oil
shaft
universal joint
sleeve
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.)
Pending
Application number
JP25370191A
Other languages
Japanese (ja)
Inventor
Masaji Arai
正次 新井
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.)
NAKAMURA JICO KK
NAKAMURA JIKOU KK
Original Assignee
NAKAMURA JICO KK
NAKAMURA JIKOU KK
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 NAKAMURA JICO KK, NAKAMURA JIKOU KK filed Critical NAKAMURA JICO KK
Priority to JP25370191A priority Critical patent/JPH0599243A/en
Publication of JPH0599243A publication Critical patent/JPH0599243A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To reduce abrasion of a spline sliding part and obtain a long life of the lubricating interval to the spline sliding part. CONSTITUTION:A spline shaft 3 is provided with a spline part 3a in the center, a round shaft part 3b whose diameter is smaller than that of the spline part on the forward end side from the spline part, and a round shaft part 3c whose diameter is larger than that of the spline part on the rearward end side from the spline part respectively. A spline sleeve 1 is provided with a spline part 1a in the center, oil sumps 6a, 6b provided with filling holes 5a, 5b sequentially from the spline part to the outside in this order on each side of the spline part, sealing packings 7a, 7b, and scrapers 8a, 8b, and bushes 9a, 9b receiving the round shaft part of the spline shaft respectively. At least either of the spline shaft or the spline sleeve is provided with passages 11, 12 which communicate two oil sumps and enable free flow of the lubrication oil. The oil filled in the oil sumps lubricates the spline part.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ユニバーサルジョイン
トのスプライン部における潤滑装置に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating device for a spline portion of a universal joint.

【0002】[0002]

【従来の技術】従来、ユニバーサルジョイントのスプラ
イン部における潤滑は、スプラインスリーブに設けたグ
リスニップルよりグリスを注入、充填することにより行
っていた。充填されたグリスは、オスとメスのスプライ
ン歯面間に保持され、スプラインスリーブとスプライン
シャフトの摺動を潤滑し、歯面の摩耗を防止する。
2. Description of the Related Art Conventionally, lubrication in a spline portion of a universal joint has been performed by injecting and filling grease from a grease nipple provided in a spline sleeve. The filled grease is held between the male and female spline tooth surfaces to lubricate the sliding of the spline sleeve and the spline shaft and prevent tooth surface wear.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上記従
来の構成では、グリスは歯面間のみに保持されているの
で、摺動を繰り返していると短期間で歯面間のグリスが
なくなり、従って、歯面間の金属接触となる。金属接触
が始まると、歯面の摩耗が発生する。
However, in the above-mentioned conventional structure, since the grease is held only between the tooth flanks, if the sliding is repeated, the grease between the tooth flanks disappears in a short period of time. Metal contact between the tooth surfaces. When metal contact begins, tooth surface wear occurs.

【0004】そこで、グリスの充填を短期間ごとに繰り
返す必要があり、保守に大変な手間がかかるばかりでな
く、その都度製造設備を停止させなければならないとい
う問題があった。
Therefore, there is a problem that it is necessary to repeat the filling of grease every short period, which not only requires a great deal of labor for maintenance, but also requires that the manufacturing equipment be stopped each time.

【0005】本発明は、そのような従来技術の問題点を
解決しようとするものであり、スプライン摺動部の摩耗
の低減、並びにスプライン摺動部への給油間隔の長期化
を図るようにしたユニバーサルジョイントのスプライン
部の潤滑装置を提供することを目的とする。
The present invention is intended to solve the problems of the prior art, and aims to reduce the wear of the spline sliding portion and prolong the oiling interval to the spline sliding portion. An object of the present invention is to provide a lubricating device for a spline portion of a universal joint.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
に、本発明の潤滑装置では、スプラインシャフトは中央
部にスプライン部が設けられ、このスプライン部より先
端側にスプライン部径より細い径の丸軸部が、またスプ
ライン部より後端側にスプライン部径より太い径の丸軸
部がそれぞれ設けられており、スプラインスリーブは中
央部にスプライン部が設けられ、このスプライン部の両
側に、スプライン部から外側へ順に注入孔を有する油溜
り、シール用パッキン、スクレーパ、及び前記スプライ
ンシャフトの丸軸部を受けるブッシュがそれぞれ設けら
れており、さらに、スプラインシャフトとスプラインス
リーブの少なくとも一方に、前記二つのに油溜り間を連
通し、潤滑油が自由に流通し得る通路が設けられた構成
となっている。
In order to achieve the above object, in a lubricating device of the present invention, a spline shaft is provided with a spline portion at the center thereof, and the spline portion has a diameter smaller than the diameter of the spline portion on the tip side from the spline portion. A round shaft part and a round shaft part with a diameter larger than the spline part diameter are provided on the rear end side of the spline part respectively.The spline sleeve has a spline part at the center part, and the spline part is provided on both sides of the spline part. An oil reservoir having an injection hole from the portion to the outside, a seal packing, a scraper, and a bush for receiving the round shaft portion of the spline shaft, respectively, and further, at least one of the spline shaft and the spline sleeve is provided with On the other hand, a passage is provided which connects the oil sumps and allows the lubricating oil to freely flow therethrough.

【0007】[0007]

【作用】上記構成によれば、注入孔から油溜りへ給油
後、注入孔を止栓すれば、油溜りには相当量の潤滑油が
保有され、二つの油溜り間に位置するスプライン摺動部
の歯面間には常に潤滑油が介在するようになる。また、
油溜り間を連通する潤滑油通路が設けられているので、
ユニバーサルジョイントの回転に伴って油の循環が行わ
れる。従って、スプライン歯面間の金属接触がなくな
り、また、グリースに比較して劣化の少ない相当量の潤
滑油の保有によって、給油間隔の長期化が達成される。
According to the above construction, if the injection hole is plugged after the oil has been supplied from the injection hole, a considerable amount of lubricating oil is retained in the oil tank, and the spline slide located between the two oil tanks is retained. The lubricating oil is always present between the tooth surfaces of the parts. Also,
Since there is a lubricating oil passage that connects the oil reservoirs,
The oil is circulated as the universal joint rotates. Therefore, the metal contact between the spline tooth surfaces is eliminated, and the holding of a considerable amount of lubricating oil that is less deteriorated compared to grease achieves a longer refueling interval.

【0008】[0008]

【実施例】以下、図面を参照して実施例を詳細に説明す
る。図1は、本発明の一実施例を示したもので、1は一
端に第1のユニバーサルジョイントのヨーク部2がフラ
ンジ結合により連結されたスプラインスリーブである。
また、3は一端に第2のユニバーサルジョイントのヨー
ク部4が溶接接合されたスプラインシャフトで、スプラ
インスリーブ1に摺動自在に挿入されている。
Embodiments will be described in detail below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which reference numeral 1 denotes a spline sleeve having a yoke portion 2 of a first universal joint connected to one end by flange coupling.
Reference numeral 3 denotes a spline shaft having a yoke portion 4 of a second universal joint welded to one end thereof, which is slidably inserted into the spline sleeve 1.

【0009】スプラインシャフト3は、中央部にスプラ
イン部3aが設けられ、このスプライン部3aより先端側
にスプライン部径より細い径の丸軸部3bが、またスプ
ライン部より後端側にスプライン部径より太い径の丸軸
部3cがそれぞれ設けられている。さらに、シャフトの
中心部に、先端から油孔11が開けられ、かつこの油孔11
に外部から連通するように丸軸部3b,3cにそれぞれ油
孔12が設けられている。油孔11の先端部は止栓13により
閉塞されている。この一連の油孔は、後述する二つの油
溜りを連通する潤滑油通路である。
The spline shaft 3 is provided with a spline portion 3a at the center, a round shaft portion 3b having a diameter smaller than the spline portion diameter on the tip side of the spline portion 3a, and a spline portion diameter on the rear end side of the spline portion. Round shaft portions 3c having a larger diameter are provided. Further, an oil hole 11 is opened from the tip at the center of the shaft, and the oil hole 11
Oil holes 12 are provided in the round shaft portions 3b and 3c so as to communicate with the outside. The tip of the oil hole 11 is closed by a stopper 13. This series of oil holes is a lubricating oil passage that connects two oil reservoirs described later.

【0010】スプラインスリーブ1は、中央部にスプラ
イン部1aが設けられ、このスプライン部1aの両側に、
スプライン部から外側へ順に、注入孔5a,5bを有する
油溜り6a,6b、シール用パッキン7a,7b、スクレー
パ8a,8b、及びスプラインシャフトの丸軸部3bを受
けるブッシュ9aと、丸軸部3cを受けるブッシュ9bが
それぞれ設けられている。なお、15はパッキン押え、16
はOリング、17はスプラインスリーブ1のフランジ部に
設けられたインロー部である。注入孔5a,5bは、油溜
り6a,6bに給油後、止栓18a,18bにより閉塞され
る。
The spline sleeve 1 is provided with a spline portion 1a at the center thereof, and on both sides of the spline portion 1a,
Oil reservoirs 6a and 6b having injection holes 5a and 5b, sealing packings 7a and 7b, scrapers 8a and 8b, and a bush 9a for receiving a round shaft portion 3b of a spline shaft, and a round shaft portion 3c in this order from the spline portion to the outside. Bushings 9b for receiving are respectively provided. 15 is the packing retainer, 16
Is an O-ring, and 17 is a spigot portion provided on the flange portion of the spline sleeve 1. After filling the oil sumps 6a and 6b with oil, the injection holes 5a and 5b are closed by stoppers 18a and 18b.

【0011】21はスプラインシャフト3の後端部に固定
されたダストチューブで、その先端に設けたパッキン22
がスプラインスリーブ1の外周に摺接している。
Reference numeral 21 is a dust tube fixed to the rear end of the spline shaft 3, and a packing 22 provided at the front end thereof.
Is in sliding contact with the outer periphery of the spline sleeve 1.

【0012】次に、本実施例の動作を説明する。まず、
スプラインスリーブ1にスプラインシャフト3を挿入
し、組み立てた後、注入孔5a,5bより油溜り6a,6b
に潤滑油を注入する。この場合、一方の注入孔より給油
すれば、その油溜りから油孔11,12を通って他方の油溜
りへ流入し、他方の注入孔が空気抜き孔となる。給油は
油溜りを満杯にせずに、若干の空気層を残す程度にす
る。油注入後は注入孔5a,5bを止栓18a,18bにより
閉塞する。
Next, the operation of this embodiment will be described. First,
After inserting the spline shaft 3 into the spline sleeve 1 and assembling it, the oil reservoirs 6a, 6b are introduced from the injection holes 5a, 5b.
Inject lubricating oil into. In this case, if oil is supplied from one of the injection holes, it flows from the oil reservoir through the oil holes 11 and 12 into the other oil reservoir, and the other injection hole serves as an air vent hole. Refueling should not fill the oil sump and leave some air layer. After the oil is injected, the injection holes 5a and 5b are closed by the stoppers 18a and 18b.

【0013】ユニバーサルジョイントが回転し、かつス
プライン部が摺動すると、遠心力や油溜りの部屋の容積
変化に伴う圧力によって潤滑油が移動し、スプライン摺
動部に浸透して潤滑作用が行われる。シール用パッキン
7a,7bは、スプラインスリーブ1とスプラインシャフ
ト3との間をシールし、スクレーパ8a,8bは、スプラ
インシャフト3の丸軸部3b,3cに付着したゴミなどを
掻き落す作用をする。
When the universal joint rotates and the spline portion slides, the lubricating oil moves due to the centrifugal force and the pressure accompanying the volume change of the chamber of the oil sump, and the lubricating oil permeates the spline sliding portion to perform a lubricating action. .. The sealing packings 7a and 7b seal between the spline sleeve 1 and the spline shaft 3, and the scrapers 8a and 8b act to scrape off dust and the like attached to the round shaft portions 3b and 3c of the spline shaft 3.

【0014】スプラインシャフトとスリーブの相対的伸
縮量は、インロー部17の面及びダストチューブ21のパッ
キン保持部とブッシュ9bの段部がストッパになって規
制されるので、シール用パッキン7a,7bにスプライン
シャフト3の段差部をぶつけて損傷させることはない。
The relative expansion and contraction amount of the spline shaft and the sleeve is regulated by the seal packing 7a, 7b because the surface of the spigot portion 17, the packing holding portion of the dust tube 21 and the step portion of the bush 9b serve as stoppers. The stepped portion of the spline shaft 3 is not hit and damaged.

【0015】以上のように構成された本実施例では、一
度給油すると、相当量の潤滑油が油溜り6a,6bに保有
され、そして、スプライン摺動部の歯面間に油が十分浸
透して、長期にわたる運転中潤滑が行われる。
In the present embodiment constructed as described above, once oil is supplied, a considerable amount of lubricating oil is retained in the oil sumps 6a and 6b, and the oil sufficiently penetrates between the tooth surfaces of the spline sliding portion. Therefore, long-term lubrication during operation is performed.

【0016】なお、二つの油溜り間を潤滑油が自由に流
通する通路として、実施例では、スプラインシャフトの
中心部に油孔を設けたが、スプラインスリーブ又はスプ
ラインシャフトの摺動部の歯の一つを除去して潤滑油の
通路としてもよい。
In the embodiment, an oil hole is provided at the center of the spline shaft as a passage through which the lubricating oil freely flows between the two oil sumps, but the spline sleeve or the teeth of the sliding portion of the spline shaft are One may be removed and used as a passage for the lubricating oil.

【0017】また、本発明は、ユニバーサルジョイント
のみならず、スプライン部を有するその他の継ぎ手、例
えば板バネ継ぎ手、ゴムカップリング等にも適用でき
る。
Further, the present invention can be applied not only to the universal joint but also to other joints having a spline portion, such as leaf spring joints and rubber couplings.

【0018】[0018]

【発明の効果】以上説明したように、本発明によれば、
スプライン摺動部の歯面間が潤滑油により長期にわたっ
て潤滑されるので、金属接触がなくなり、スプライン歯
面の摩耗を低減することができる。
As described above, according to the present invention,
Since the tooth surfaces of the spline sliding portion are lubricated with the lubricating oil for a long period of time, metal contact is eliminated, and wear of the spline tooth surface can be reduced.

【0019】また、従来のグリースに替えて、劣化の少
ない潤滑油を使用し、しかも油溜りに相当量の潤滑油を
保有することができるので、油の交換や補充の頻度が大
幅に減少し、長期間の連続運転が可能になり、保守作業
が容易になると共に、製造設備を度々停止させる必要も
なくなる。
Further, in place of the conventional grease, a lubricating oil with little deterioration can be used, and since a considerable amount of lubricating oil can be retained in the oil sump, the frequency of oil replacement and replenishment is greatly reduced. The long-term continuous operation becomes possible, the maintenance work becomes easy, and it is not necessary to stop the manufacturing equipment frequently.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の半断面図である。FIG. 1 is a half sectional view of an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 … スプラインスリーブ、 1a … スプライン部、
2,4 … ヨーク部、3 … スプラインシャフト、 3a
… スプライン部、 3b,3c …丸軸部、5a,5b … 注
入孔、 6a,6b … 油溜り、 7a,7b … パッキン、
8a,8b… スクレーパ、 9a,9b … ブッシュ、 11,12
… 油孔。
1 ... Spline sleeve, 1a ... Spline part,
2, 4 ... Yoke part, 3 ... Spline shaft, 3a
... Spline part, 3b, 3c ... Round shaft part, 5a, 5b ... Injection hole, 6a, 6b ... Oil sump, 7a, 7b ... Packing,
8a, 8b ... scraper, 9a, 9b ... bush, 11,12
… Oil holes.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 一端に第1のユニバーサルジョイントが
連結されたスプラインスリーブに、一端に第2のユニバ
ーサルジョイントが連結されたスプラインシャフトが摺
動自在に挿入されたスプライン摺動部の潤滑装置であっ
て、 前記スプラインシャフトは、中央部にスプライン部が、
該スプライン部より先端側にスプライン部径より細い径
の丸軸部が、またスプライン部より後端側にスプライン
部径より太い径の丸軸部がそれぞれ設けられており、 前記スプラインスリーブは、中央部にスプライン部が、
該スプライン部の両側に、スプライン部から外側へ順に
注入孔を有する油溜り、シール用パッキン、スクレー
パ、及び前記スプラインシャフトの丸軸部を受けるブッ
シュがそれぞれ設けられており、 前記スプラインシャフトとスプラインスリーブの少なく
とも一方に、前記二つの油溜り間を連通し、潤滑油が自
由に流通し得る通路が設けられており、 前記油溜りに注入された潤滑油で、前記スプライン摺動
部が潤滑されることを特徴とするユニバーサルジョイン
トのスプライン部の潤滑装置。
1. A lubricating device for a spline sliding portion, wherein a spline sleeve having a first universal joint connected to one end thereof is slidably inserted with a spline shaft having a second universal joint connected to one end thereof. The spline shaft has a spline portion at the center,
A round shaft portion having a diameter smaller than the spline portion diameter is provided on the tip side of the spline portion, and a round shaft portion having a diameter larger than the spline portion diameter is provided on the rear end side of the spline portion. Spline part,
On both sides of the spline portion, an oil sump having an injection hole in order from the spline portion to the outside, a seal packing, a scraper, and a bush for receiving the round shaft portion of the spline shaft are respectively provided, and the spline shaft and the spline sleeve. At least one of which is provided with a passage that communicates between the two oil reservoirs and through which lubricating oil can freely flow, and the spline sliding portion is lubricated by the lubricating oil injected into the oil reservoir. A lubricating device for the spline part of a universal joint, which is characterized in that
JP25370191A 1991-10-01 1991-10-01 Spline part lubrication device of universal joint Pending JPH0599243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25370191A JPH0599243A (en) 1991-10-01 1991-10-01 Spline part lubrication device of universal joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25370191A JPH0599243A (en) 1991-10-01 1991-10-01 Spline part lubrication device of universal joint

Publications (1)

Publication Number Publication Date
JPH0599243A true JPH0599243A (en) 1993-04-20

Family

ID=17254952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25370191A Pending JPH0599243A (en) 1991-10-01 1991-10-01 Spline part lubrication device of universal joint

Country Status (1)

Country Link
JP (1) JPH0599243A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929429A (en) * 2009-06-22 2010-12-29 住友重机械工业株式会社 The reduction gear for pitch driving device of wind-power electricity generation
CN107131221A (en) * 2017-06-27 2017-09-05 昆明国轴传动机械有限公司 The power transmission shaft and cargo vehicle of a kind of field-replaceable unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929429A (en) * 2009-06-22 2010-12-29 住友重机械工业株式会社 The reduction gear for pitch driving device of wind-power electricity generation
JP2011001941A (en) * 2009-06-22 2011-01-06 Sumitomo Heavy Ind Ltd Reduction gear for pitch driving of wind power generation
CN107131221A (en) * 2017-06-27 2017-09-05 昆明国轴传动机械有限公司 The power transmission shaft and cargo vehicle of a kind of field-replaceable unit

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