JPH0547857Y2 - - Google Patents
Info
- Publication number
- JPH0547857Y2 JPH0547857Y2 JP1984133578U JP13357884U JPH0547857Y2 JP H0547857 Y2 JPH0547857 Y2 JP H0547857Y2 JP 1984133578 U JP1984133578 U JP 1984133578U JP 13357884 U JP13357884 U JP 13357884U JP H0547857 Y2 JPH0547857 Y2 JP H0547857Y2
- Authority
- JP
- Japan
- Prior art keywords
- spline
- spline shaft
- grease
- passage
- grease reservoir
- 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.)
- Expired - Lifetime
Links
- 239000004519 grease Substances 0.000 claims description 59
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005461 lubrication Methods 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000003642 hunger Nutrition 0.000 description 2
- 230000037351 starvation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000007799 cork Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Steering Controls (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は車両のスプライン軸継手の潤滑装置に
関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lubricating device for a spline shaft joint of a vehicle.
［従来の技術］
キヤブオーバ型車両における操舵軸は、キヤブ
側に支持される部分と操向歯車機構に連結される
部分とに分割され、かつスプライン軸継手により
伸縮可能に連結されている。スプライン嵌合部は
グリースを充填されているが、長期使用の内に消
耗すると、スプライン嵌合部の円滑な摺動が損わ
れるので、常に適正な潤滑を要求される。[Prior Art] A steering shaft in a cab-over type vehicle is divided into a portion supported on the cab side and a portion connected to a steering gear mechanism, and are expandably and contractably connected by a spline shaft joint. The spline fitting part is filled with grease, but if it wears out over a long period of use, the smooth sliding of the spline fitting part will be impaired, so proper lubrication is always required.
上述の要求に応える特公昭57−40931号公報に
開示される装置では、グリース溜室を有するスプ
ラインスリーブにスプライン軸を嵌合し、グリー
ス溜室のグリースをスプライン軸の軸方向運動に
伴つて嵌合部へ供給している。しかし、上述の装
置では、スプインスリーブの外端部にシール部材
を装着して、グリース溜室を密閉しているので、
スプライン軸の過大な変位や軸方向の衝撃に対す
る抵抗力が大きく、スプライン軸継手の円滑な動
作を妨げる。 In the device disclosed in Japanese Patent Publication No. 57-40931 that meets the above requirements, a spline shaft is fitted into a spline sleeve having a grease reservoir, and the grease in the grease reservoir is fitted as the spline shaft moves in the axial direction. It is supplied to Gobe. However, in the above-mentioned device, a sealing member is attached to the outer end of the spin sleeve to seal the grease reservoir.
The spline shaft has a large resistance to excessive displacement and axial impact, which hinders the smooth operation of the spline shaft joint.
そこで、実開昭55−38003号公報に開示される
装置では、グリース溜室はばねにより付勢される
ピストンにより加圧され、軸方向の衝撃荷重に対
する抗力はピストンの変位により緩和されるが、
水、埃などがピストンの端部の空気抜き穴へ侵入
し、グリースがピストンの摺動部から外部へ洩れ
る恐れがあり、またスプライン嵌合部が長くなる
と、グリース溜室から離れた部分はグリースが交
換され難い。 Therefore, in the device disclosed in Japanese Utility Model Application Publication No. 55-38003, the grease reservoir is pressurized by a piston biased by a spring, and the resistance against the axial impact load is alleviated by the displacement of the piston.
Water, dust, etc. may enter the air vent hole at the end of the piston, and grease may leak to the outside from the sliding part of the piston.Also, if the spline fitting becomes long, grease may leak away from the grease reservoir. Hard to replace.
［考案が解決しようとする問題点］
したがつて、スプライン嵌合部が長くても嵌合
部でのグリースの交換が十分に行われ、軸方向の
移動に対して抗力を及ぼすことも、外部から埃な
どが侵入することもない、半密閉構造のスプライ
ン軸継手の潤滑装置が要求される。[Problems to be solved by the invention] Therefore, even if the spline fitting part is long, the grease can be replaced sufficiently at the fitting part, and there is no need to exert resistance against axial movement. There is a need for a lubricating device for spline shaft joints with a semi-sealed structure that prevents dust from entering.
本考案の目的は上述の要求を満たすために、構
成が簡単で、グリースがスプライン嵌合部へよく
行きわたり、急激かつ過大なスプライン軸の移動
に対しグリース溜室がスプライン軸に抗力を及ぼ
さない、半密閉構造のスプライン軸継手の潤滑装
置を提供することにある。 The purpose of the present invention is to satisfy the above-mentioned requirements by having a simple configuration, allowing grease to spread well to the spline fitting part, and preventing the grease reservoir from exerting any resistance on the spline shaft against sudden and excessive movement of the spline shaft. An object of the present invention is to provide a lubricating device for a spline shaft joint having a semi-hermetic structure.
［問題点を解決するための手段］
上記目的を達成するために、本考案の構成はス
プラインスリーブにスプライン軸を摺動可能に嵌
合し、スプラインスリーブの内端にグリース溜室
を形成し、スプラインスリーブの外端にスプライ
ン軸との嵌合部を封止するシール部材を装着し、
スプライン軸にグリース溜室に連通する軸方向の
貫通路を設け、スプライン軸の外端に前記貫通路
を外部へ開放可能とするブリーザを設け、前記貫
通路の途中からスプライン軸の嵌合部へ連通する
径方向の通路を設けたものである。[Means for Solving the Problems] In order to achieve the above object, the present invention has a configuration in which a spline shaft is slidably fitted into a spline sleeve, a grease reservoir is formed at the inner end of the spline sleeve, Attach a sealing member to the outer end of the spline sleeve to seal the fitting part with the spline shaft,
A through passage in the axial direction communicating with the grease reservoir is provided in the spline shaft, a breather is provided at the outer end of the spline shaft to allow the through passage to be opened to the outside, and a breather is provided at the outer end of the spline shaft, and a part of the through passage extends from the middle of the through passage to the fitting portion of the spline shaft. A communicating radial passage is provided.
［作用］
スプライン軸が急激かつ過大に移動すると、グ
リース溜室のグリースは貫通路、径方向通路を経
てブリーザを開き、スプライン軸の端部から外部
へ溢れ、スプライン軸の移動に対し抗力を及ぼさ
ない。[Function] When the spline shaft moves suddenly and excessively, the grease in the grease reservoir opens the breather through the through passage and the radial passage, overflows from the end of the spline shaft to the outside, and exerts a resistance against the movement of the spline shaft. do not have.
この時、グリース溜室から貫通路、径方向通路
へのグリースの流れが生じるので、この機会を通
じスプライン嵌合部はグリースを補給され、グリ
ースが欠乏する恐れはない。 At this time, since a flow of grease occurs from the grease reservoir to the through passage and the radial passage, the spline fitting portion is replenished with grease through this opportunity, and there is no fear of grease starvation.
［考案の実施例］
第１図に示すように、スプラインスリーブ３は
下端部に自在継手としてのヨーク１６を一体に構
成され、内部にグリース溜室１５を形成され、ニ
ツプル４からグリース溜室１５へグリースを充填
される。スプラインスリーブ３は上半部にスプラ
イン穴を形成され、スプライン穴の上端部はゴム
またはコルクなどのシール部材８を当てられ、さ
らにスプラインスリーブ３の外周面に、断面Ｌ字
形をなす環状のリテーナ９を嵌合して保持され
る。スプラインスリーブ３のスプライン穴へ嵌合
されるスプライン軸２は、軸心に貫通路５を設け
られ、貫通路５の中間部分に径方向通路６を設け
られる。貫通路５の上端部はブリーザ７を装着さ
れる。[Embodiment of the invention] As shown in FIG. 1, the spline sleeve 3 is integrally constructed with a yoke 16 as a universal joint at its lower end, and a grease reservoir 15 is formed inside. is filled with grease. The spline sleeve 3 has a spline hole formed in its upper half, and a sealing member 8 made of rubber or cork is applied to the upper end of the spline hole, and an annular retainer 9 having an L-shaped cross section is attached to the outer peripheral surface of the spline sleeve 3. are fitted and retained. The spline shaft 2 fitted into the spline hole of the spline sleeve 3 is provided with a through passage 5 at its axial center, and a radial passage 6 at an intermediate portion of the through passage 5. A breather 7 is attached to the upper end of the through passage 5.
ブリーザ７は貫通路５の上端部に嵌合固定した
円筒体１４に、弁体１２をばね１１により押し付
けられる。ばね１１はカツプ状の押え板１０によ
りヨーク１３の円筒部へ支持される。自在継手を
構成するヨーク１３は、スプライン軸２の上端部
に結合される。円筒体１４の外部はヨーク１３と
スプライン軸２との隙間を経て外部へ開放され
る。 The breather 7 has a valve body 12 pressed by a spring 11 against a cylindrical body 14 that is fitted and fixed to the upper end of the through passage 5 . The spring 11 is supported on the cylindrical portion of the yoke 13 by a cup-shaped holding plate 10. A yoke 13 constituting the universal joint is coupled to the upper end of the spline shaft 2. The outside of the cylindrical body 14 is opened to the outside through a gap between the yoke 13 and the spline shaft 2.
次に、本考案によるスプライン軸継手の潤滑装
置の作用について説明する。機関の整備などのた
めにキヤブを前方へ傾けると、操舵軸が伸長さ
れ、スプライン軸２はスプラインスリーブ３から
引き上げられる。グリース溜室１５の容積が拡大
された状態で、ニツプル４からグリースを充填す
れば、余剰のグリースは貫通路５から径方向通路
６を経て外部へ放出されるので、グリースを十分
に充填することができ、確認も容易である。 Next, the operation of the lubricating device for a spline shaft joint according to the present invention will be explained. When the cab is tilted forward for engine maintenance or the like, the steering shaft is extended and the spline shaft 2 is pulled up from the spline sleeve 3. If grease is filled from the nipple 4 with the volume of the grease reservoir chamber 15 expanded, excess grease will be discharged from the through passage 5 to the outside via the radial passage 6, so that the grease can be sufficiently filled. and easy to confirm.
第３図に示すように、キヤブを普通の状態に戻
すと、スプライン軸２はスプラインスリーブ３の
内部へ押し込まれ、径方向通路６がスプラインス
リーブ３とスプライン軸２とのスプライン嵌合部
へ連通し、グリースがスプライン嵌合部へ十分に
行きわたる。 As shown in FIG. 3, when the cab is returned to its normal state, the spline shaft 2 is pushed into the spline sleeve 3, and the radial passage 6 communicates with the spline fitting between the spline sleeve 3 and the spline shaft 2. The grease will spread sufficiently to the spline fittings.
車両の走行に伴つてスプライン軸２が上下に移
動し、グリース溜室１５が圧縮されると、グリー
ス溜室１５のグリースは貫通路５、径方向通路６
を経てスプライン嵌合部１へ供給される。グリー
ス溜室１５が膨張すると、スプライン嵌合部１の
グリースは径方向通路６、貫通路５へ戻される。
このように、グリース溜室１５のグリースは径方
向通路６を経てスプライン嵌合部１の上半部と交
換され、またグリース溜室１５のグリースは直接
スプライン嵌合部の下半部と交換される。 When the spline shaft 2 moves up and down as the vehicle travels and the grease reservoir 15 is compressed, the grease in the grease reservoir 15 flows through the through passage 5 and the radial passage 6.
It is supplied to the spline fitting part 1 through the. When the grease reservoir 15 expands, the grease in the spline fitting portion 1 is returned to the radial passage 6 and the through passage 5.
In this way, the grease in the grease reservoir 15 is exchanged with the upper half of the spline fitting part 1 through the radial passage 6, and the grease in the grease reservoir 15 is directly exchanged with the lower half of the spline fitting part. Ru.
車体の振動などに伴つてスプライン軸２が急激
かつ大きく変位し、特にスプライン軸２がスプラ
インスリーブ３の内部へ押し込まれようとする
と、グリース溜室１５は密閉されているので、ス
プライン軸２の移動に対し抗力を及ぼす。この
時、グリース溜室１５のグリースは、貫通路５を
経てブリーザ７の弁体１２をばね１１の力に抗し
て押し開き、外部へ噴出する。したがつて、スプ
ライン軸２の移動に対する抗力は解消され、スプ
ライン軸２とスプラインスリーブ３との相対移動
による衝撃も解消される。 If the spline shaft 2 suddenly and largely displaces due to vibrations of the vehicle body, especially if the spline shaft 2 tries to be pushed into the spline sleeve 3, the grease reservoir 15 is sealed, so the movement of the spline shaft 2 will be prevented. exerts a drag force against. At this time, the grease in the grease reservoir chamber 15 passes through the through passage 5, pushes open the valve body 12 of the breather 7 against the force of the spring 11, and is ejected to the outside. Therefore, the resistance to the movement of the spline shaft 2 is eliminated, and the impact caused by the relative movement between the spline shaft 2 and the spline sleeve 3 is also eliminated.
［考案の効果］
本考案は上述のように、スプラインスリーブに
スプライン軸を摺動可能に嵌合し、スプラインス
リーブの内端にグリース溜室を形成し、スプライ
ンスリーブの外端にスプライン軸との嵌合部を封
止するシール部材を装着し、スプライン軸にグリ
ース溜室に連通する軸方向の貫通路を設け、スプ
ライン軸の外端に前記貫通路を外部へ開放可能と
するブリーザを設け、前記貫通路の途中からスプ
ライン軸の嵌合部へ連通する径方向の通路を設け
たから、次のような効果を奏する。[Effects of the invention] As described above, the present invention has a spline shaft slidably fitted into a spline sleeve, a grease reservoir formed at the inner end of the spline sleeve, and a grease chamber formed at the outer end of the spline sleeve to connect with the spline shaft. A sealing member for sealing the fitting portion is installed, an axial through-path communicating with the grease reservoir is provided on the spline shaft, and a breather is provided at the outer end of the spline shaft to allow the through-path to be opened to the outside; Since a radial passage is provided that communicates with the fitting portion of the spline shaft from the middle of the through passage, the following effects can be achieved.
(a) スプライン軸としての構成が簡単であり、ス
プライン軸の僅かな軸方向移動に伴い、グリー
ス溜室のグリースは貫通路と径方向通路を経て
スプライン嵌合部の奥へ流れ、スプライン嵌合
部を潤滑する。(a) The configuration as a spline shaft is simple, and as the spline shaft moves slightly in the axial direction, the grease in the grease reservoir flows through the through passage and the radial passage to the back of the spline fitting part, and the spline fitting Lubricate the parts.
(b) 径方向通路をグリース溜室から離れた部分に
設けたから、スプライン嵌合部が長くても、グ
リース溜室のグリースは貫通路と径方向通路を
経て、スプライン嵌合部のグリース溜室から離
れた部分へ流れ、またグリース溜室のグリース
は直接スプライン嵌合部のグリース溜室に近い
部分へ流れるので、スプライン嵌合部は全体的
に均一に潤滑される。(b) Since the radial passage is provided in a part away from the grease reservoir, even if the spline fitting part is long, the grease in the grease reservoir passes through the through passage and the radial passage and reaches the grease reservoir in the spline fitting part. Since the grease in the grease reservoir flows directly to the portion of the spline fitting portion near the grease reservoir, the entire spline fitting portion is uniformly lubricated.
(c) 急激かつ過大な推力がスプライン軸に作用す
ると、グリース溜室の圧力は貫通路、ブリーザ
を経て外部へ解放されるので、スプライン軸の
円滑な移動が妨げられることはない。(c) When a sudden and excessive thrust is applied to the spline shaft, the pressure in the grease reservoir is released to the outside through the through passage and the breather, so the smooth movement of the spline shaft is not hindered.
この時、グリース溜室から貫通路、径方向通
路へのグリースの流れが生じるので、この機会
を通じスプライン嵌合部はグリースを補給さ
れ、グリースが欠乏する恐れはない。 At this time, since a flow of grease occurs from the grease reservoir to the through passage and the radial passage, the spline fitting portion is replenished with grease through this opportunity, and there is no fear of grease starvation.
(d) 通常は、貫通路と径方向通路とスプライン嵌
合部とは、ブリーザとシール部材により密閉さ
れているので、埃、水などが侵入する恐れがな
い。(d) Normally, the through passage, the radial passage, and the spline fitting part are sealed by a breather and a sealing member, so there is no risk of dust, water, etc. entering.
第１図は本考案に係るスプライン軸継手の給油
時の状態を示す正面断面図、第２図は同スプライ
ン軸継手におけるスプライン軸の平面断面図、第
３図はスプライン軸継手の通常の使用状態を示す
正面断面図である。
１…スプライン嵌合部、２…スプライン軸、３
…スプラインスリーブ、５…貫通路、６…径方向
通路、７…ブリーザ、８…シール部材、１５…グ
リース溜室。
Fig. 1 is a front sectional view showing the state of the spline shaft joint according to the present invention during oiling, Fig. 2 is a plan sectional view of the spline shaft in the spline shaft joint, and Fig. 3 is the normal usage state of the spline shaft joint. FIG. 1...Spline fitting part, 2...Spline shaft, 3
... Spline sleeve, 5... Penetration path, 6... Radial passage, 7... Breather, 8... Seal member, 15... Grease reservoir.
Claims (1)
に嵌合し、スプラインスリーブの内端にグリース
溜室を形成し、スプラインスリーブの外端にスプ
ライン軸との嵌合部を封止するシール部材を装着
し、スプライン軸にグリース溜室に連通する軸方
向の貫通路を設け、スプライン軸の外端に前記貫
通路を外部へ開放可能とするブリーザを設け、前
記貫通路の途中からスプライン軸の嵌合部へ連通
する径方向の通路を設けたことを特徴とする、ス
プライン軸継手の潤滑装置。 A spline shaft is slidably fitted into the spline sleeve, a grease reservoir is formed at the inner end of the spline sleeve, and a sealing member is attached to the outer end of the spline sleeve to seal the fitting portion with the spline shaft. A through passage in the axial direction communicating with the grease reservoir is provided in the spline shaft, a breather is provided at the outer end of the spline shaft to allow the through passage to be opened to the outside, and a breather is provided at the outer end of the spline shaft, and a part of the through passage extends from the middle of the through passage to the fitting portion of the spline shaft. A lubrication device for a spline shaft joint, characterized in that a communicating radial passage is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984133578U JPH0547857Y2 (en) | 1984-09-04 | 1984-09-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984133578U JPH0547857Y2 (en) | 1984-09-04 | 1984-09-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6149133U JPS6149133U (en) | 1986-04-02 |
| JPH0547857Y2 true JPH0547857Y2 (en) | 1993-12-17 |
Family
ID=30692119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984133578U Expired - Lifetime JPH0547857Y2 (en) | 1984-09-04 | 1984-09-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547857Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020133763A (en) * | 2019-02-20 | 2020-08-31 | 株式会社Ｉｊｔｔ | Spline slide part structure of vehicle powertrain |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3242695A (en) * | 1963-12-23 | 1966-03-29 | Ford Motor Co | Slip spline lubrication system |
| JPS5225960A (en) * | 1975-08-22 | 1977-02-26 | Gelenkwellenbau Gmbh | Relief valve for ventilating inside of expansion shaft movable in each coupled shaft |
| JPS5538003B2 (en) * | 1974-12-20 | 1980-10-01 | ||
| JPS57140997A (en) * | 1981-02-23 | 1982-08-31 | Iseki & Co Ltd | Lubricating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608177Y2 (en) * | 1978-09-02 | 1985-03-22 | 日野自動車株式会社 | Shaft joint structure |
-
1984
- 1984-09-04 JP JP1984133578U patent/JPH0547857Y2/ja not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3242695A (en) * | 1963-12-23 | 1966-03-29 | Ford Motor Co | Slip spline lubrication system |
| JPS5538003B2 (en) * | 1974-12-20 | 1980-10-01 | ||
| JPS5225960A (en) * | 1975-08-22 | 1977-02-26 | Gelenkwellenbau Gmbh | Relief valve for ventilating inside of expansion shaft movable in each coupled shaft |
| JPS57140997A (en) * | 1981-02-23 | 1982-08-31 | Iseki & Co Ltd | Lubricating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6149133U (en) | 1986-04-02 |
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