JPS6245432B2 - - Google Patents
Info
- Publication number
- JPS6245432B2 JPS6245432B2 JP58088757A JP8875783A JPS6245432B2 JP S6245432 B2 JPS6245432 B2 JP S6245432B2 JP 58088757 A JP58088757 A JP 58088757A JP 8875783 A JP8875783 A JP 8875783A JP S6245432 B2 JPS6245432 B2 JP S6245432B2
- Authority
- JP
- Japan
- Prior art keywords
- seal
- shaft
- lip
- large diameter
- 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
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Description
【発明の詳細な説明】
本発明は軸封シールのスプライン軸への装着方
法に係る。更に詳しくは、軸封シールをスプライ
ン軸に装着するとき、軸を密封するシール部を損
傷しないようにして装着する軸封シールの装着方
法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for attaching a shaft seal to a spline shaft. More specifically, the present invention relates to a method for mounting a shaft seal on a spline shaft without damaging the seal portion that seals the shaft.
本発明に関する先行技術としては、第１図に示
すもの（米国特許第4126317号明細書）が存在す
る。第１図の軸封シールは補強環５１を備え、当
該補強環５１の内周側に固着して斜め軸方向に伸
びる環状リツプ５２を有するものである。この環
状リツプ５２はゴム状弾性材製で、軸５３と接触
する側にシールリツプ５４を設けている。 As a prior art related to the present invention, there is the one shown in FIG. 1 (US Pat. No. 4,126,317). The shaft seal shown in FIG. 1 includes a reinforcing ring 51 and an annular lip 52 fixed to the inner peripheral side of the reinforcing ring 51 and extending obliquely in the axial direction. This annular lip 52 is made of a rubber-like elastic material, and is provided with a sealing lip 54 on the side that contacts the shaft 53.
又、軸５３には一端側にスプライン部５５を有
しており、軸封シールをこの軸５３のスプライン
部５５から挿入するとき、シールリツプ５４がス
プセイン部５５により損傷されるので、環状リツ
プ５２を折曲げることにより、シールリツプ５４
がスプライン部５５に接触しないようにしたもの
である。しかし、この軸封シールには補強環５１
が設けられているため、環状リツプ５２を折曲げ
たとき、補強環５１との接着近傍が特に大きく曲
げられることになる。その結果、環状リツプ５２
と補強環５１とは接着面に於て剥離する問題を有
する。又、環状リツプ５２は補強環５１との接着
近傍が曲げられたとき、この部分の弾性力が弱め
られるので、その後、シールリツプ５４の軸５３
に対する密封接触力を弱めることになる。 Further, the shaft 53 has a spline portion 55 on one end side, and when the shaft seal is inserted through the spline portion 55 of the shaft 53, the seal lip 54 is damaged by the spline portion 55. By bending the seal lip 54
This prevents the spline portion 55 from coming into contact with the spline portion 55. However, this shaft seal has a reinforcing ring 51.
Because of this, when the annular lip 52 is bent, the area near where it is bonded to the reinforcing ring 51 is bent particularly greatly. As a result, the annular lip 52
and reinforcing ring 51 have the problem of peeling off at the adhesive surface. Further, when the annular lip 52 is bent near the bonding area with the reinforcing ring 51, the elastic force of this area is weakened, so that the shaft 53 of the sealing lip 54 is bent.
This will weaken the sealing contact force against the
更に、軸封シールを軸５３に挿入するとき、環
状リツプ５２を折曲げた状態で挿入しなければな
らないから、この折曲げ保持方法のために軸封シ
ールの形状が（特にシールリツプ長さを必要とす
る）限定されて、取付場所に対応した形状の設計
が困難になる。 Furthermore, when inserting the shaft seal into the shaft 53, it must be inserted with the annular lip 52 bent, so the shape of the shaft seal (especially the length of the seal lip) is ), making it difficult to design a shape that corresponds to the mounting location.
本発明は上述のような問題点に鑑みなされたも
のであつて、その目的は、一端側にスプライン等
の加工部を有する軸の加工部側からパツキンを挿
入して装着するとき、軸封シールのシールリツプ
部を損傷することなく装着できるようにするもの
である。 The present invention was made in view of the above-mentioned problems, and its purpose is to provide a shaft seal when inserting and installing a packing from the processed part side of a shaft that has a processed part such as a spline on one end side. This allows the product to be installed without damaging the seal lip of the product.
上述の課題解決のため、本発明の技術的手段は
以下のように構成されている。すなわち、シール
部を有するシールリツプと取付部とを有し且つシ
ールリツプのシール部を形成した面が断面円弧状
に成されている軸封シールを、スプライン加工さ
れた大径部を有する軸に大径部側から相対的に挿
入して大径部を通過させ、軸部に至つてシールリ
ツプのシール部を軸と密封接触させるようにした
装着方法である。 In order to solve the above problems, the technical means of the present invention is configured as follows. That is, a shaft seal having a seal lip with a seal portion and a mounting portion, and the surface of the seal lip forming the seal portion has an arcuate cross section, is attached to a shaft having a large diameter splined portion with a large diameter. This is a mounting method in which the sealing lip is inserted relatively from the side, passes through the large diameter part, reaches the shaft, and brings the sealing part of the seal lip into sealing contact with the shaft.
以下、本発明の一実施例を図面に基いて詳細に
説明する。第２図は本発明の軸封シールの装着方
法を示す断面図である。この軸封シールはゴム状
弾性材の取付部１に補強環２が埋設されていると
共に、取付部１の一端側から軸に対して傾斜した
環状のシールリツプ３が２条伸びており、内周先
端がシール部４を形成されている。当該シールリ
ツプ３は２条とは限らず、１条又は３条以上にし
ても良い。そして、シールリツプ３の周面にはシ
ール部４近くに突起部５が一体に設けられてい
る。この突起部５は周方向に沿つて断続的に複数
個設けられている。 Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. FIG. 2 is a sectional view showing a method of installing the shaft seal of the present invention. This shaft seal has a reinforcing ring 2 embedded in a mounting part 1 made of a rubber-like elastic material, and two annular seal lips 3 extending from one end of the mounting part 1 at an angle to the shaft. A seal portion 4 is formed at the tip. The number of seal lips 3 is not limited to two, and may be one or three or more. A protrusion 5 is integrally provided on the circumferential surface of the seal lip 3 near the seal portion 4. A plurality of protrusions 5 are provided intermittently along the circumferential direction.
又、シール部４は形成している面は、断面円弧
状に成されている。 Further, the surface forming the seal portion 4 has an arcuate cross section.
上述のように構成された軸封シール１０の組込
みはスプライン１１等の加工が施されている大径
部７から第２図のように軸６に挿入される。この
とき、大径部７によりシールリツプ３の内径を拡
大しながら、大径部７はシールリツプ３の内周面
に沿つて軸方向へ相対挿入される。そして、大径
部７の挿入先端側がシール部４に当接しても、シ
ール部４の断面円弧状に形成されている面となめ
らかに接合して相対的に移動する。更に大径部７
がシール部４をすべるようにして通過すると、シ
ール部４は軸部８と接合するようになる。 To assemble the shaft seal 10 configured as described above, it is inserted into the shaft 6 from the large diameter portion 7 where the spline 11 etc. are processed as shown in FIG. At this time, the large diameter part 7 is relatively inserted in the axial direction along the inner peripheral surface of the seal lip 3 while enlarging the inner diameter of the seal lip 3 by the large diameter part 7. Even when the insertion tip side of the large diameter portion 7 comes into contact with the seal portion 4, it smoothly joins with the surface of the seal portion 4 having an arcuate cross section and moves relatively. Furthermore, the large diameter part 7
When the seal part 4 slides through the seal part 4, the seal part 4 comes to be joined to the shaft part 8.
そして、軸部８に挿入した状態で取付部１をハ
ウジング９に装着すると共に、シール部４を軸部
８に密封接触させる。 Then, the attachment part 1 is attached to the housing 9 while being inserted into the shaft part 8, and the seal part 4 is brought into sealing contact with the shaft part 8.
上述のように構成された本発明は以下のような
効果を奏する。一端の大径部にスプライン加工さ
れた軸が取付けられていて、軸封シールを挿入す
るには必ず大径部を通過させなければならない場
合、シールリツプに有するシール部は大径部の角
部によつて損傷させられることが多い。しかし、
本発明の軸封シールのようにシールリツプのシー
ル部を断面円弧状に形成することによつて、大径
部が環状のシールリツプを押拡げて通過すると
き、シール部の軸部との接触面は、シールリツプ
が軸心に対して益々鋭角方向に弾性変形するの
で、大径部と非接触状態になる。その結果、軸部
との接触面は損傷されることがない。又、断面円
弧状に形成されたシール部は大径部となめらかに
接触摺動するので、挿入時における損傷を効果的
に防止することが期待できる。従つて、スプライ
ン軸への挿入時にシール部が損傷し、以後の運転
中に被密封流体が漏洩するような不具合を完全に
防止することが可能になる。 The present invention configured as described above has the following effects. If a splined shaft is attached to the large diameter part of one end and the shaft seal must be inserted through the large diameter part, the sealing part on the seal lip should be attached to the corner of the large diameter part. They are often damaged by twisting. but,
By forming the seal portion of the seal lip with an arcuate cross section as in the shaft seal of the present invention, when the large diameter portion expands and passes through the annular seal lip, the contact surface of the seal portion with the shaft portion is Since the seal lip is elastically deformed in an increasingly acute angle direction with respect to the axis, it comes into a state of non-contact with the large diameter portion. As a result, the contact surface with the shaft is not damaged. Further, since the seal portion having an arcuate cross-section slides smoothly into contact with the large diameter portion, it can be expected to effectively prevent damage during insertion. Therefore, it is possible to completely prevent problems such as damage to the seal portion upon insertion into the spline shaft and leakage of the sealed fluid during subsequent operation.
第１図は従来のオイルシールの取付方法を示す
断面図、第２図は本発明の軸封シールの装着方法
を示す断面図である。
１……取付部、２……補強環、３……シールリ
ツプ、４……シール部、５……突起部、６……
軸、７……大径部、８……軸部、９……ハウジン
グ、１０……軸封シール、１１……スプライン、
５１……補強環、５２……環状リツプ、５３……
軸、５４……シールリツプ、５５……スプライン
部。
FIG. 1 is a sectional view showing a conventional oil seal mounting method, and FIG. 2 is a sectional view showing a shaft seal mounting method of the present invention. DESCRIPTION OF SYMBOLS 1... Mounting part, 2... Reinforcement ring, 3... Seal lip, 4... Seal part, 5... Projection, 6...
Shaft, 7...Large diameter portion, 8...Shaft portion, 9...Housing, 10...Shaft seal, 11...Spline,
51... Reinforcement ring, 52... Annular lip, 53...
Shaft, 54... Seal lip, 55... Spline portion.
Claims (1)
リツプ３と取付部１とを有し且つ当該シール部４
を形成する面が断面円弧状に成されている軸封シ
ールを、スプライン加工された大径部７を有する
軸６に当該大径部７側から相対的に挿入して通過
させ、軸部８に至つて前記シール部４を当該軸部
８と密封接触させる軸封シールのスプライン軸へ
の装着方法。1 has a seal lip 3 having a seal part 4 made of a rubber-like elastic material and a mounting part 1, and the seal part 4
A shaft seal having a surface forming an arcuate cross section is relatively inserted into the shaft 6 having a splined large diameter portion 7 from the large diameter portion 7 side, and passes through the shaft 6. A method for attaching a shaft seal to a spline shaft, which brings the seal portion 4 into sealing contact with the shaft portion 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58088757A JPS59180167A (en) | 1983-05-20 | 1983-05-20 | Method of mounting shaft sealing seal on spline shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58088757A JPS59180167A (en) | 1983-05-20 | 1983-05-20 | Method of mounting shaft sealing seal on spline shaft |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58051927A Division JPS59180165A (en) | 1983-03-28 | 1983-03-28 | Method of mounting shaft sealing seal on spline shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59180167A JPS59180167A (en) | 1984-10-13 |
| JPS6245432B2 true JPS6245432B2 (en) | 1987-09-26 |
Family
ID=13951750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58088757A Granted JPS59180167A (en) | 1983-05-20 | 1983-05-20 | Method of mounting shaft sealing seal on spline shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59180167A (en) |
-
1983
- 1983-05-20 JP JP58088757A patent/JPS59180167A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59180167A (en) | 1984-10-13 |
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