JPH0144805Y2 - - Google Patents
Info
- Publication number
- JPH0144805Y2 JPH0144805Y2 JP1986185572U JP18557286U JPH0144805Y2 JP H0144805 Y2 JPH0144805 Y2 JP H0144805Y2 JP 1986185572 U JP1986185572 U JP 1986185572U JP 18557286 U JP18557286 U JP 18557286U JP H0144805 Y2 JPH0144805 Y2 JP H0144805Y2
- Authority
- JP
- Japan
- Prior art keywords
- press
- rubber
- pin
- fit base
- shaft
- 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
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Insertion Pins And Rivets (AREA)
- Mechanical Sealing (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案はメカニカルシールの部品間の回り止め
結合部等に使用するゴム焼付ピンに関するもので
ある。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a rubber sintered pin used in a rotation prevention joint between parts of a mechanical seal.
従来より機械装置の部材間を連結する手段とし
て各種ピンが使用されており、たとえば第4図に
示すようなメカニカルシールではハウジング50
と固定環51間、および回転軸52に外挿軸着し
たスリーブ53と回転環54間を係合によつて回
り止め連結する構造としてそれぞれノツクピン5
5,55……が使用されている。
Conventionally, various pins have been used as means for connecting members of mechanical devices. For example, in a mechanical seal as shown in FIG.
Knock pins 5 are used to prevent rotation by engagement between the sleeve 53 and the fixed ring 51, and between the sleeve 53 and the rotating ring 54, which are externally fitted onto the rotating shaft 52.
5, 55... are used.
しかし、この種のピンは一般に軸嵌めによつて
部材に立設する構造になるため、金属性の硬質材
によつて構成しており、長期間の使用に伴なう係
合部との繰り返し衝撃によつて該係合部が摩耗損
傷する問題を有していた。ことにメカニカルシー
ルに使用する場合は、被係合側の部材が固定環5
1または回転環54等がSiC製等の硬質かつ脆弱
な部材によつて構成されているため、上記繰り返
し衝撃によつてノツクピン55との係合部に割れ
が生じ、軸封性能を著しく低下する欠点を有して
いた。
However, this type of pin generally has a structure in which it is installed upright on a member by shaft-fitting, so it is made of a hard metal material, and the engaging part may be repeatedly used over a long period of time. There was a problem in that the engaging portion was worn and damaged by the impact. Particularly when used for mechanical seals, the member on the engaged side is fixed ring 5.
1 or the rotating ring 54, etc., are made of hard and fragile members such as SiC, so the repeated impact causes cracks in the engagement portion with the knock pin 55, significantly reducing the shaft sealing performance. It had drawbacks.
本考案は上記問題に鑑みてなされたもので、ピ
ンの構造に緩衝部材を付加して係合部の繰り返し
衝撃を吸収するようになるとともに、部材に対す
る立設固着が簡単なゴム焼付ピンを提供すること
を目的とするものである。 The present invention was developed in view of the above-mentioned problems, and provides a rubber-sealed pin that absorbs the repeated impact of the engaging part by adding a buffer member to the pin structure, and that can be easily installed and fixed to a member. The purpose is to
本考案のゴム焼付ピンは、金属等の硬質材料か
らなる芯軸の後端側に、一方の部材に貫通形成し
た軸孔に圧入嵌着される大径の圧入基部を形成
し、前記芯軸の先端側に、前記一方の部材から突
出して他方の部材と遊嵌係合される小径部を形成
し、該小径部と圧入基部の間に周溝を形成すると
ともに、該周溝および小径部を被覆するようにゴ
ム冠を焼付固着し、該ゴム冠の外径を前記圧入基
部の外径よりも小径としたものである。
The rubber sintered pin of the present invention has a large diameter press-fit base formed on the rear end side of the core shaft made of a hard material such as metal, which is press-fitted into a shaft hole formed through one member, and the core shaft A small diameter portion protruding from the one member and loosely engaged with the other member is formed on the distal end side of the member, a circumferential groove is formed between the small diameter portion and the press-fit base, and a circumferential groove is formed between the circumferential groove and the small diameter portion. A rubber cap is baked and fixed so as to cover the press-fit base, and the outer diameter of the rubber cap is smaller than the outer diameter of the press-fit base.
上記ゴム焼付ピンは、芯軸先端側の小径部をゴ
ム冠で被覆したことによつて、前記他方の部材と
の接触による衝撃を吸収することができ、前記ゴ
ム冠は、芯軸の小径部から周溝へかけて被着され
ていて該周溝との嵌合構造をなしていることか
ら、使用中の剥離脱落等が生じにくいものであ
る。
The above-mentioned rubber baking pin can absorb shock caused by contact with the other member by covering the small diameter part on the tip end side of the core shaft with a rubber crown. Since the material is adhered from the surface to the circumferential groove and forms a fitting structure with the circumferential groove, it is unlikely to peel off or fall off during use.
また、このゴム焼付ピンは、前記軸孔に取付け
る場合、該軸孔の背面側(前記他方の部材と反対
側)の開口からゴム冠で被覆された先端側を先に
挿入し、次いでさらに後端を押圧して圧入基部を
前記軸孔に圧入嵌着するが、このとき、前記ゴム
冠は圧入基部よりも小径であることから、軸孔と
干渉することなく該軸孔を通過し、しかも該軸孔
への圧入基部の圧入は、芯軸後端を押圧して行な
うものであることから、前記ゴム冠は損傷を受け
ない。 In addition, when installing this rubber-baked pin into the shaft hole, the tip side covered with a rubber cap is first inserted through the opening on the back side of the shaft hole (the opposite side to the other member), and then further The press-fitting base is press-fitted into the shaft hole by pressing the end, but at this time, since the rubber crown has a smaller diameter than the press-fitting base, it passes through the shaft hole without interfering with the shaft hole. Since the press-fit base is press-fitted into the shaft hole by pressing the rear end of the core shaft, the rubber crown is not damaged.
以下、本考案ゴム焼付ピンの一実施例を第1図
および第2図にしたがつて説明する。符号1は適
宜長さの軸状をなす金属製の芯軸であり、被設部
材に穿設した軸孔14(孔径D3)と所定の軸嵌
め公差を有する圧入基部2の先端に、周溝3を介
して上記圧入基部2の外径D1より小径D2の小径
部4を形成してなる。符号5は上記周溝3と小径
部4に焼付固着したゴム冠であり、外径D4が上
記芯軸1の圧入基部2より小径になるように成形
されるとともに、周溝3部では内縁6を嵌合して
ピンの係合部7を構成する。
Hereinafter, one embodiment of the rubber sizing pin of the present invention will be described with reference to FIGS. 1 and 2. Reference numeral 1 denotes a metal core shaft in the shape of a shaft with an appropriate length, and a circumferential groove is formed at the tip of a press-fit base 2 that has a shaft hole 14 (hole diameter D3) bored in the installed member and a predetermined shaft fitting tolerance. 3, a small diameter portion 4 having a smaller diameter D2 than the outer diameter D1 of the press-fit base 2 is formed. Reference numeral 5 denotes a rubber crown that is baked and fixed to the circumferential groove 3 and the small diameter portion 4, and is formed so that the outer diameter D4 is smaller than the press-fit base 2 of the core shaft 1, and the inner edge 6 is formed in the circumferential groove 3 portion. are fitted to form the engaging portion 7 of the pin.
上記構成のゴム焼付ピン9は、たとえば第3図
に示すようにメカニカルシール10の密封摺動環
の回り止め機構に使用するものであり、固定環1
1の端部に形成した切欠12をハウジング側部材
13に立設したゴム焼付ピン9と回動方向に係合
してなる。上記ゴム焼付ピン9の立設固着に際し
てハウジング側部材13には圧入基部2と所定の
軸嵌め公差を有する軸孔14(孔径D3)を穿設
してあり、該軸孔14の背面側からゴム焼付ピン
9の係合部7を挿入するとともに、該係合部7が
係合側に突出するように圧入基部2を軸孔14に
圧挿する。この組付工程において、ゴム冠5の外
径D4と圧入基部2の外径D1および軸孔14の外
径D3に、
D4<D3≦D1
の関係があるため、ゴム冠5の外周が軸孔14と
接触して損傷するようなことはない。またゴム焼
付ピン9の圧入時の加圧作用は圧入基部2の後
端、すなわち芯軸1の後端に加えることになり、
係合部7のゴム冠5を損傷することはない。 The rubber baking pin 9 having the above configuration is used, for example, as shown in FIG.
A notch 12 formed at the end of the housing side member 13 is engaged with a rubber baking pin 9 provided upright on the housing side member 13 in the rotational direction. When fixing the rubber baking pin 9 upright, a shaft hole 14 (hole diameter D3) having a predetermined shaft fitting tolerance with the press-fit base 2 is bored in the housing side member 13, and the rubber is inserted from the back side of the shaft hole 14. The engaging portion 7 of the baking pin 9 is inserted, and the press-fitting base 2 is press-fitted into the shaft hole 14 so that the engaging portion 7 protrudes toward the engaging side. In this assembly process, the outer diameter D4 of the rubber crown 5, the outer diameter D1 of the press-fit base 2, and the outer diameter D3 of the shaft hole 14 have a relationship of D4<D3≦D1. 14 and will not be damaged by contact. In addition, the pressurizing action when press-fitting the rubber baking pin 9 is applied to the rear end of the press-fit base 2, that is, the rear end of the core shaft 1.
The rubber crown 5 of the engaging portion 7 will not be damaged.
上記メカニカルシール10の密封摺動環の回り
止め機構では、回転環11の係合切欠部12が係
合するゴム焼付ピン9の係合部7と回動方向に係
合し、かつ軸方向に摺動自在になる。したがつて
係合方向にはゴム冠5を介して駆動伝達するよう
になり、該ゴム冠5の弾性によつて衝撃を吸収す
る緩衝作用をなし、回転環11を損傷することが
ない。 In the locking mechanism for the sealing sliding ring of the mechanical seal 10, the engaging notch 12 of the rotating ring 11 engages in the rotational direction with the engaging part 7 of the rubber baking pin 9, and also in the axial direction. Becomes slidable. Therefore, drive is transmitted in the engagement direction via the rubber crown 5, and the elasticity of the rubber crown 5 acts as a shock absorber to prevent damage to the rotating ring 11.
以上述べたように本考案のゴム焼付ピンは、相
手部材と遊嵌係合する芯軸先端側にゴム冠を被着
したことにより、係合による繰り返し衝撃を吸収
して前記芯軸および相手部材の損傷を防止するこ
とができ、また、その組付けに際し芯軸の先端側
を被覆したゴム冠が損傷を受けることがなく、か
つ前記ゴム冠の脱落も防止されるといつた優れた
効果を奏する。
As described above, the rubber sintered pin of the present invention has a rubber cap attached to the tip end of the core shaft that loosely engages with the mating member, thereby absorbing the repeated impact caused by the engagement, and absorbing the repeated impact between the core shaft and the mating member. In addition, the rubber crown covering the tip end of the core shaft is not damaged during assembly, and the rubber crown is also prevented from falling off. play.
第1図は本考案のゴム焼付ピンの一実施例を示
す断面図、第2図は同分解斜視図、第3図はメカ
ニカルシールの密封摺動環部に構成した回り止め
機構を示す要部断面図、第4図は従来のピンを示
すメカニカルシールの要部断面図である。
1……芯軸、2……圧入基部、3……周溝、4
……小径部、5……ゴム冠、7……係合部、9…
…ゴム焼付ピン。
Fig. 1 is a sectional view showing an embodiment of the rubber sizing pin of the present invention, Fig. 2 is an exploded perspective view of the same, and Fig. 3 is a main part showing the detent mechanism constructed in the sealing sliding ring of the mechanical seal. FIG. 4 is a sectional view of a main part of a mechanical seal showing a conventional pin. 1...Core shaft, 2...Press-fit base, 3...Peripheral groove, 4
...Small diameter part, 5...Rubber crown, 7...Engagement part, 9...
...Rubber baked pin.
Claims (1)
方の部材に貫通形成した軸孔に圧入嵌着される大
径の圧入基部を形成し、前記芯軸の先端側に、前
記一方の部材から突出して他方の部材と遊嵌係合
される小径部を形成し、該小径部と圧入基部の間
に周溝を形成するとともに、該周溝および小径部
を被覆するようにゴム冠を焼付固着し、該ゴム冠
の外径を前記圧入基部の外径よりも小径としたこ
とを特徴とするゴム焼付ピン。 A large-diameter press-fit base is formed on the rear end side of the core shaft made of a hard material such as metal, and is press-fitted into a shaft hole formed through one member, and a press-fit base part of a large diameter is formed on the front end side of the core shaft, and is press-fitted into the shaft hole formed through the one member. A small diameter portion is formed that protrudes from the member and is loosely engaged with the other member, a circumferential groove is formed between the small diameter portion and the press-fit base, and a rubber crown is provided to cover the circumferential groove and the small diameter portion. A rubber sintered pin, characterized in that the rubber crown is sintered and fixed, and the outer diameter of the rubber crown is smaller than the outer diameter of the press-fit base.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986185572U JPH0144805Y2 (en) | 1986-12-03 | 1986-12-03 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986185572U JPH0144805Y2 (en) | 1986-12-03 | 1986-12-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6391712U JPS6391712U (en) | 1988-06-14 |
JPH0144805Y2 true JPH0144805Y2 (en) | 1989-12-25 |
Family
ID=31134326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986185572U Expired JPH0144805Y2 (en) | 1986-12-03 | 1986-12-03 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0144805Y2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56155107U (en) * | 1980-04-18 | 1981-11-19 |
-
1986
- 1986-12-03 JP JP1986185572U patent/JPH0144805Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6391712U (en) | 1988-06-14 |
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