JPH0454092B2 - - Google Patents
Info
- Publication number
- JPH0454092B2 JPH0454092B2 JP60022337A JP2233785A JPH0454092B2 JP H0454092 B2 JPH0454092 B2 JP H0454092B2 JP 60022337 A JP60022337 A JP 60022337A JP 2233785 A JP2233785 A JP 2233785A JP H0454092 B2 JPH0454092 B2 JP H0454092B2
- Authority
- JP
- Japan
- Prior art keywords
- spline member
- outer spline
- monomer
- resin film
- inner spline
- 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
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
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
-
- 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
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/03—Shafts; Axles telescopic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はスライドスプラインの製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing a slide spline.
（従来の技術）
従来、スライドスプライン装置は、第３図に示
すように、内周にスプラインが形成された有底筒
状のアウタスプライン部材（軸受）１と、該アウ
タスプライン部材１のスプライン１ａに対応して
外周にスプラインが形成されたインナスプライン
部材（軸）２とからなり、アウタスプライン部材
１内にインナスプライン部材２が伸縮動可能に嵌
合されている。(Prior Art) Conventionally, as shown in FIG. 3, a slide spline device includes an outer spline member (bearing) 1 having a bottomed cylindrical shape with splines formed on its inner periphery, and a spline 1a of the outer spline member 1. It consists of an inner spline member (shaft) 2 having splines formed on its outer periphery corresponding to the inner spline member 2, and the inner spline member 2 is fitted into the outer spline member 1 so as to be able to expand and contract.
そして、インナスプライン部材２の摺動面に
は、該インナスプライン部材２の全長に亘つて樹
脂膜３が被覆されており、これにより、アウタス
プライン部材１に対するインナスプライン部材２
の摺動特性を向上させている。 The sliding surface of the inner spline member 2 is coated with a resin film 3 over the entire length of the inner spline member 2, so that the inner spline member 2 with respect to the outer spline member 1 is coated with a resin film 3.
Improves the sliding characteristics of
（発明が解決しようとする問題点）
しかしながら、上記構成にあつては、インナス
プライン部材２の摺動面に全長に亘つて樹脂膜３
が被覆されているため、アウタスプライン部材１
に対するインナスプライン部材２の伸縮動位置に
応じて、アウタスプライン部材１の内周と樹脂膜
３との摺動面積が変化することになり、摺動抵抗
が変化することになつていた。(Problems to be Solved by the Invention) However, in the above configuration, the resin film 3 is formed on the sliding surface of the inner spline member 2 over the entire length.
is covered, the outer spline member 1
The sliding area between the inner periphery of the outer spline member 1 and the resin film 3 changes depending on the expansion/contraction movement position of the inner spline member 2 with respect to the inner spline member 2, and the sliding resistance changes.
また、アウタスプライン部材１内に対してイン
ナスプライン部材２が最も短縮しない限り、イン
ナスプライン部材２の一部はアウタスプライン部
材１外に露出することになり、その部分が高湿な
雰囲気下におかれると、樹脂膜３は吸水膨張やグ
リス切れを起こし、その樹脂膜３の吸水分により
インナスプライン部材２のシヤフト部が錆びるこ
ととなつていた。このため、その錆びにより樹脂
膜３が盛上り、その樹脂膜３の盛上り部分では摺
動抵抗が増大することとなつていた。 Furthermore, unless the inner spline member 2 is shortened the most with respect to the inside of the outer spline member 1, a part of the inner spline member 2 will be exposed outside the outer spline member 1, and that part will be exposed to a high humidity atmosphere. When this happens, the resin film 3 absorbs water and swells and runs out of grease, which causes the shaft portion of the inner spline member 2 to rust due to the water absorption in the resin film 3. For this reason, the resin film 3 bulges due to the rust, and the sliding resistance increases at the bulge portion of the resin film 3.
このように、上記スライドスプライン装置で
は、アウタスプライン部材１に対するインナスプ
ライン部材２の伸縮動位置や樹脂膜３の経時変化
により、一定の摺動抵抗を得ることができなかつ
た。 As described above, in the slide spline device described above, it was not possible to obtain a constant sliding resistance due to the expansion/contraction movement position of the inner spline member 2 relative to the outer spline member 1 and changes in the resin film 3 over time.
本発明は上記実情に鑑みてなされたもので、そ
の目的は、摺動特性が一定でしかもその摺動特性
が長期にわたつて安定するスライドスプライン装
置を、容易かつ高精度に製造することができるス
ライドスプライン装置の製造方法を提供すること
にある。 The present invention has been made in view of the above circumstances, and its purpose is to easily and accurately manufacture a slide spline device that has constant sliding characteristics and is stable over a long period of time. An object of the present invention is to provide a method for manufacturing a slide spline device.
（問題点を解決するための手段）
かかる目的を達成するために本発明はスプライ
ンが形成された有底筒状のアウタスプライン部材
１内周に離型剤を塗布し、次に、前記アウタスプ
ライン部材内にポリアミド樹脂のモノマーを所定
量注入し、次いで前記アウタスプライン部材内
に、該アウラスプライン部材のスプラインに対応
して外周面にスプラインが形成されたインナスプ
ライン部材を嵌挿して、該アウタスプライン部材
と該インナスプライン部材との間のクリアランス
を介して前記モノマーの液位を該アウタスプライ
ン部材の開口側に向かつて変位させ、その後、前
記モノマーを重合硬化して、最大伸長時に前記ア
ウタスプライン部材内に位置する前記インナスプ
ライン部材の先端部分に樹脂膜を被覆する。(Means for Solving the Problems) In order to achieve the above object, the present invention applies a mold release agent to the inner periphery of the bottomed cylindrical outer spline member 1 on which splines are formed, and then removes the outer spline from the outer spline. A predetermined amount of polyamide resin monomer is injected into the member, and then an inner spline member having splines formed on the outer circumferential surface corresponding to the splines of the aura spline member is inserted into the outer spline member to form the outer spline member. The liquid level of the monomer is displaced toward the opening side of the outer spline member through the clearance between the member and the inner spline member, and then the monomer is polymerized and cured to cause the outer spline member to elongate to its maximum. A resin film is coated on the tip portion of the inner spline member located inside.
（作用）
上述の本発明の構成により、樹脂膜３は、イン
ナスプライン部材２がアウタスプライン部材１に
対して伸縮動する全範囲において、常時、アウタ
スプライン部材１内にとどまり、且つアウタスプ
ライン部材１又はインナスプライン部材２と一定
の摺動面積をもつて接触することになる。(Function) With the above-described configuration of the present invention, the resin film 3 always remains within the outer spline member 1 throughout the range in which the inner spline member 2 expands and contracts with respect to the outer spline member 1, and the resin film 3 always stays within the outer spline member 1. Alternatively, it comes into contact with the inner spline member 2 with a constant sliding area.
また、樹脂膜３を被覆したい位置までモノマー
の液位を容易且つ正確に変位させることができる
ことになる。 Moreover, the liquid level of the monomer can be easily and accurately shifted to the desired position to cover the resin film 3.
（実施例）
以下、本発明の実施例を図面に基いて説明する
が、前記従来技術と同一構成要素については同一
符号を付してその説明を省略する。(Example) Hereinafter, an example of the present invention will be described based on the drawings, and the same components as those in the prior art will be given the same reference numerals and the explanation thereof will be omitted.
第１図、第２図において、樹脂膜３は、インナ
スプライン部材２の摺動面（外周面）に該インナ
スプライン部材２の先端から一定距離まで被覆さ
れており、この範囲ｌがアウタスプライン部材１
に対するインナスプライン部材２の嵌合部となつ
ている。このインナスプライン部材２の嵌合部
は、アウタスプライン部材１に対してインナスプ
ライン部材２が最大伸張したとき、アウタスプラ
イン部材１の開口端から外部へ露出することなく
該アウタスプライン部材１内にとどまつており、
樹脂膜３の外周面は外気下にはさらされない（第
１図参照）。ここで、１ａはアウタスプライン部
材２のスプライン、２ａはインナスプライン部材
２のスプラインである。 1 and 2, the resin film 3 covers the sliding surface (outer peripheral surface) of the inner spline member 2 up to a certain distance from the tip of the inner spline member 2, and this range l is the outer spline member. 1
This serves as a fitting portion for the inner spline member 2. The fitting portion of the inner spline member 2 remains within the outer spline member 1 without being exposed to the outside from the open end of the outer spline member 1 when the inner spline member 2 is expanded to the maximum with respect to the outer spline member 1. It's on,
The outer peripheral surface of the resin film 3 is not exposed to the outside air (see FIG. 1). Here, 1a is a spline of the outer spline member 2, and 2a is a spline of the inner spline member 2.
このため、インナスプライン部材２がアウタス
プライン部材１に対して伸縮動する全範囲におい
て、樹脂膜３は、常時アウタスプライン部材１内
にとどまり、且つアウタスプライン部材１内周面
に一定の摺動面積をもつて接触する。したがつ
て、樹脂膜３が水分等により経時変化を起こすこ
ともなくなり、アウタスプライン部材１に対する
インナスプライン部材１の摺動抵抗は、長期に亘
つて上記範囲で一定となる。 Therefore, over the entire range in which the inner spline member 2 expands and contracts with respect to the outer spline member 1, the resin film 3 always remains within the outer spline member 1 and has a certain sliding area on the inner peripheral surface of the outer spline member 1. contact with Therefore, the resin film 3 does not change over time due to moisture or the like, and the sliding resistance of the inner spline member 1 with respect to the outer spline member 1 remains constant within the above range over a long period of time.
このようなスライドスプライン装置を製造する
ためには、先ず、アウタスプライン部材１内周全
面に離型剤を塗布し、次に、アウタスプライン部
材１内にモノマーを必要量注入する。この場合、
モノマーとして低粘度でかつ重合反応がそれほど
早くなく、しかも硬化時における収縮率の大きい
ポリアミド樹脂を選択する。モノマーの必要量
は、インナスプライン部材２の被覆面積、インナ
スプライン部材２とアウタスプライン部材１との
クリアランス等を考慮して決定される。 In order to manufacture such a slide spline device, first, a mold release agent is applied to the entire inner circumference of the outer spline member 1, and then a required amount of monomer is injected into the outer spline member 1. in this case,
As a monomer, select a polyamide resin that has a low viscosity, does not undergo a very rapid polymerization reaction, and has a high shrinkage rate during curing. The required amount of the monomer is determined in consideration of the area covered by the inner spline member 2, the clearance between the inner spline member 2 and the outer spline member 1, and the like.
次いで、アウタスプライン部材１内にインナス
プライン部材２を嵌挿し、インナスプライン部材
２をモノマー内に押込む。これにより、モノマー
は、低粘度溶液であることから、アウタスプライ
ン部材１の内周面とインナスプライン部材２の外
周面との間のクリアランスを介して該アウタスプ
ライン部材１の開口側に向つて移動することにな
り、そのモノマーの液位を、インナスプライン部
材２のモノマー内への押込み又はモノマーの注入
量調整により、樹脂膜３を被覆したい位置まで変
位させる。 Next, the inner spline member 2 is fitted into the outer spline member 1, and the inner spline member 2 is pushed into the monomer. As a result, since the monomer is a low-viscosity solution, it moves toward the opening side of the outer spline member 1 through the clearance between the inner peripheral surface of the outer spline member 1 and the outer peripheral surface of the inner spline member 2. Then, the liquid level of the monomer is moved to the desired position to cover the resin film 3 by pushing the inner spline member 2 into the monomer or adjusting the amount of monomer injected.
この後、その状態でモノマーを重合硬化させ、
インナスプライン部材２の外周面に樹脂膜３を被
覆する。モノマーを重合硬化させるにあたつて
は、加熱や光照射等の手段を講じたり、モノマー
内に反応開始剤を予じめ入れておけばよい。 After this, the monomer is polymerized and cured in that state,
The outer peripheral surface of the inner spline member 2 is coated with a resin film 3. In polymerizing and curing the monomer, it is sufficient to take measures such as heating and light irradiation, or to add a reaction initiator to the monomer in advance.
そして、この結果、モノマーの重合硬化に伴つ
て樹脂膜３は成形収縮し、樹脂膜３とアウタスプ
ライン部材１との間に微妙なクリアランスが形成
されることになり、摺動特性は極めて良好とな
る。 As a result, the resin film 3 undergoes molding shrinkage as the monomer polymerizes and hardens, and a delicate clearance is formed between the resin film 3 and the outer spline member 1, resulting in extremely good sliding characteristics. Become.
以上実施例について説明したが本発明にあつて
は次の態様を包含する。 Although the embodiments have been described above, the present invention includes the following aspects.
スライドスプライン装置の製造方法にあつて、
インナスプライン部材２をアウタスプライン部材
１内に嵌挿する前に、該インナスプライン部材２
の外周面に予じめ適当なプライマーを塗布するこ
と。これにより、樹脂膜３はインナスプライン部
材２に強固に固着できる。 Regarding the manufacturing method of the slide spline device,
Before inserting the inner spline member 2 into the outer spline member 1,
Apply an appropriate primer to the outer circumferential surface of the Thereby, the resin film 3 can be firmly fixed to the inner spline member 2.
（発明の効果）
以上述べたことから明らかなように、また本発
明によれば、インナスプライン部材２がアウタス
プライン部材１に対して伸縮動する全範囲におい
て樹脂膜が、常時、アウタスプライン部材内から
露出することなく、しかも、一定の摺動面積をも
つてアウタスプライン部材又はインナスプライン
部材と接触していることから、長期間に亘つて常
に摺動抵抗を一定に保つことができる。また、樹
脂膜を必要最小限の範囲で被覆しているので、樹
脂原料等の低減を図ることができる。(Effects of the Invention) As is clear from the above, and according to the present invention, the resin film is always maintained within the outer spline member in the entire range in which the inner spline member 2 expands and contracts with respect to the outer spline member 1. Since the spline member is not exposed from the outer spline member and is in contact with the outer spline member or the inner spline member with a fixed sliding area, the sliding resistance can always be kept constant over a long period of time. Further, since the resin film is coated to the minimum necessary extent, it is possible to reduce the amount of resin raw materials and the like.
また本発明によれば、低粘度でかつ重合反応の
それほど速くないポリアミド樹脂を用いているの
で、樹脂膜で被覆したい位置までモノマーの液位
を容易且つ正確に変位させることができることか
ら、樹脂膜をインナスプライン部材に容易かつ高
精度に被覆することができ、性能的に優れたスラ
イドスプライン装置を安定して製造できる。また
ポリアミド樹脂は硬化時における収縮率が大きい
ので、樹脂膜の締付け効果により強度的にも安定
したスライドスプライン装置を製造できる。 Furthermore, according to the present invention, since a polyamide resin having a low viscosity and a polymerization reaction that does not occur very quickly is used, the liquid level of the monomer can be easily and accurately shifted to the position desired to be covered with the resin film. can be coated on the inner spline member easily and with high precision, and a slide spline device with excellent performance can be stably manufactured. Furthermore, since polyamide resin has a large shrinkage rate upon curing, it is possible to manufacture a slide spline device with stable strength due to the tightening effect of the resin film.
第１図は、本発明に係るスライドスプライン装
置を示す一部破断正面図、第２図は、第１図のＡ
−Ａ線断面図、第３図は、従来技術に係るスライ
ドスプライン装置を示す一部破断正面図である。
１……アウタスプライン部材、１ａ……スプラ
イン、２……インナスプライン部材、２ａ……ス
プライン。
FIG. 1 is a partially cutaway front view showing a slide spline device according to the present invention, and FIG. 2 is an A of FIG. 1.
- A sectional view and FIG. 3 are partially cutaway front views showing a slide spline device according to the prior art. 1... Outer spline member, 1a... Spline, 2... Inner spline member, 2a... Spline.
Claims (1)
プライン部材内周面に離型剤を塗布し、次に、前
記アウタスプライン部材内にポリアミド樹脂のモ
ノマーを所定量注入し、次いで前記アウタスプラ
イン部材内に、該アウタスプライン部材のスプラ
インに対応して外周面にスプラインが形成された
インナスプライン部材を嵌挿して、該アウタスプ
ライン部材と該インナスプライン部材との間のク
リアランスを介して前記モノマーの液位を該アウ
タスプライン部材の開口側に向かつて変位させ、
その後、前記モノマーを重合硬化して、最大伸長
時に前記アウタスプライン部材内に位置する前記
インナスプライン部材の先端部分に樹脂膜を被覆
することを特徴とするスライドスプライン装置の
製造方法。1. Apply a mold release agent to the inner circumferential surface of the bottomed cylindrical outer spline member on which splines are formed, then inject a predetermined amount of polyamide resin monomer into the outer spline member, and then inject the polyamide resin monomer into the outer spline member. Then, an inner spline member having splines formed on the outer peripheral surface corresponding to the splines of the outer spline member is fitted and inserted, and the liquid level of the monomer is adjusted through the clearance between the outer spline member and the inner spline member. is displaced toward the opening side of the outer spline member,
A method for manufacturing a slide spline device, characterized in that the monomer is then polymerized and cured to cover the tip portion of the inner spline member located within the outer spline member at the time of maximum elongation with a resin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60022337A JPS61184222A (en) | 1985-02-07 | 1985-02-07 | Slide spline device and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60022337A JPS61184222A (en) | 1985-02-07 | 1985-02-07 | Slide spline device and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61184222A JPS61184222A (en) | 1986-08-16 |
| JPH0454092B2 true JPH0454092B2 (en) | 1992-08-28 |
Family
ID=12079885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60022337A Granted JPS61184222A (en) | 1985-02-07 | 1985-02-07 | Slide spline device and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61184222A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2832934B2 (en) * | 1987-08-22 | 1998-12-09 | アイシン精機株式会社 | Method of manufacturing telescopic shaft |
| US5525112A (en) * | 1993-12-06 | 1996-06-11 | Dana Corporation | Combined seal and boot for steering shaft assembly |
| US20140200086A1 (en) * | 2011-11-30 | 2014-07-17 | Nsk Ltd. | Telescopic shaft |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2432380A1 (en) * | 1978-08-04 | 1980-02-29 | Nacam | Injection moulded coatings for sliding rotary shaft gears - to obtain close tolerance profiles without extensive machining of gears or coatings |
-
1985
- 1985-02-07 JP JP60022337A patent/JPS61184222A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61184222A (en) | 1986-08-16 |
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