Χ^1648 九、發明說明： 【發明所屬之技術領域】 合部的塑膠製的活 本發明係關於一種具有重疊密封接 塞桿密封環。 【先前技術】 上述類型的活塞桿密封環係應用於燃燒引擎的活塞桿 :的壓蓋密封。此類壓蓋密封特別為船舶用柴油機所習知 ，且在例如文件 μ-β·21’14，152 或 Ερ_Α 〇，ΐ38,443 中 ^敘述。活塞桿的壓蓋通常形成介於該曲柄外罩與換氣室 、間的間％。在其曲柄外罩一側，首先'组刮油環配置在 :舌塞桿的壓蓋之中，數個密封環緊跟在其後，㉟落在該圓 主側邊之上。該等密封環用以使該活塞桿達到氣密的接 觸’必須始終在壓力下依靠該活塞桿。 3如試驗結果顯示，最大的磨耗不可避免地發生在該活 ^ $的上下死點。活塞桿上直徑範圍的磨耗是在此 号㊉發生的大小。由此導致上下死點區域在每一活塞行程 循環裡被密封環刷過兩次。因此，在密封接合部的重疊區 域中該密封環必須進行約3_6mm的相對運動。以此，該密 封接合部的上下舌月彼此滑動超越。在該密封接合部同時 安放於彼此之上的兩舌片的表面承受摩損，其一方面受相 同材貝製成的兩舌月彼此摩擦的影響，且另一方面經由混 入作為潤滑劑之油中之磨耗的金屬部份的影響。嚴重污染 的油使s亥密封接合部的兩舌片上的摩擦損耗增加。由使用 金屬活塞桿密封環，該接合部區域的密封環的磨損問題相 6 1^1648 對地輕微，且限於例如是青銅之軟金屬製的密封環。更加 明顯的是，發現金屬製的活塞桿密封環導致活塞桿本身明 顯更多的磨擦損耗，因此該密封整體變得不足，其缺點一 方：導致曲軸油的消耗增加。因此近年來，愈來愈多的活 塞桴壓蓋已提供有塑膠的刮油環以及密封環。而藉由這些 裝置’該活塞桿的磨耗已明顯地降低，且因此油耗亦已減 到最低:由於密封的退化意外地比預期快，該密封環必須 斩地&加替換已經被證明。僅這些塑膠密封環的替換已 被確認在該密封接合部區域中的密封環會導致意外的泡 '属即將在此被討論的密封環第一次使用於如腳州14讀 所揭露的壓蓋。 【發明内容】 因此’本發明的目的是以重疊的密封接合部的方式改 進塑膠活塞桿密封環，使得 文付具可命増加，並且甚至即使有 ::的磨損仍保有密封性。具有專利申請_ i項特徵 夕種2膠活塞才干密封核達到此目標。更進一步地具有許 夕優點的實施例將由附屬項專利申請範圍推論出，且意義 以及做法將參考附圖在後續的敘述中解釋。 本發明的主題的較佳眚A _ 貫施例顯不於附圖中，並且在後 續敘述中詳細地解釋。 【實施方式】 參考圖1，以在船 的結構。此類壓蓋 1當中，該換氣室 為了對於本發明的有更多的了解， 舶的柴油發動機的應用解釋該壓蓋密封 密封使該曲軸室對該換氣室密封。在圖 7 1331648 設置f箭頭z方向上’並且在箭頭U向上設置曲軸外罩。 該塵盍具有塵蓋外草】，不同的接收凹槽2係結合於其内 壁上。數個以到除黏著在該曲柄桿上的油並將之導引回曲 抽外罩的方式的刮油環3，被安裝於該“室側”㈣ 的圓環狀凹槽2中。為此，合適的油沒流道4係結合於該 壓盍的外罩中。該刮油環3安裝於愿蓋外罩中的區域稱為 刮油區，而該璧蓋的密封區域在換氣室的方向緊跟且上。 同樣地，周邊的圓環接收凹# 2朝内地形成於密封區内， 且該密封環5安放其卜在此圖當中的表現，該密封環5 係以顯不如傳統密封環，同時具有到油環3。 所開發=由專利WP趣彻得知的特殊刮油環:在=顯 盍㈣的_種實施例當中’對該刮油環3或密封環 5施加塵迫力的螺旋彈簧未被畫出。然而這些必然是存在 的。此省略只為該使該圖不致負擔太多。 、” 為了再-次討論傳統活塞桿密封環的 參見圖8及圖9,圖中係 、化點 在申請人之部件上之最新的活塞二，二已經出現的 此為-體成形製造且包含一重二心!；該密封環5在 .„匕 更《的、虱密的接合部6。此 重且、氣密的接合部如圖9的截面圖所示 重疊的區域中，第一圓環端7與另一第 ^在 同時該圓環端7密封地承接另一圓:：8 ^。 ::4的滑動表面9為-密封的表面9a，各種力幾乎 不施加其上，且可確定在其上其• 谷種力歲手 這些表面上①知耗發生。在 土 ‘.、、的方式不意且以字母w標 8 1331648 不。由於在此處兩個塑膠零件相對彼此滑動，且另 . 周邊螺旋狀彈簧在圓弧狀開# R内以封閉的方式運作由: 彈I產生朝向活塞桿的中心軸的徑向壓 2 擦損耗w。 因此助長了摩 在圖2巾可以看出獨創之組裝狀態下的塑㈣活塞桿 密封環。實際的塑膠密封環標示$ 1〇。該塑膠零件係：： 成形且包含-弧狀重叠區域12，其尺寸依與活塞桿直徑的 相合程度而變A ’視磨損所造成的變化而定。位於該外圍 表面的塑膠密封環包含一個或一個以上的周邊開槽Μ，其 供作導引安放於其中的周邊螺旋彈簧14<用。該螺旋彈 簧14可藉由一體成形的環狀孔眼以及一體成形勾狀孔眼 所形成的鎖來結合在一起。依所需要的壓力大小，可提供 多至三條此種周邊螺旋彈簧，在接合部6的區域内，一金 屬製的弧形橋接元件15置於徑向。該橋接元件15相似地 包含開槽16，在組裝的狀態下，其與位於該塑膠密封環 上的開槽13平高。該塑膠密封環1〇包含一朝内的周邊凹 口 17,其比該重叠區域寬1而該金屬製的弧形橋接元件 1 5在任何情況下其縱向長度小於朝内的周邊凹口 1 7，當 該塑勝密封圓環呈現最小直徑的時候。該朝内的周邊凹3 17具有一基底，其為該圓弧形橋接元件15提供一滑動表 面18。該弧形橋接器15以及該朝内的周邊凹口 17必須互 相配合。然而大體上該弧形橋接元件15的半徑可些微地 比該朝内的周邊凹口 17的滑動表面18的半徑大。這兩種 半位在短Β^Γ間之後彼此配合。關於此點’隨後的附圖將再 9 U31648 次地討論。 圖4及圖5顯示該错膠浓 2膠在封核本身。該塑膠密封環 具有一内部密封表面 ，、在裝置的狀況下承載在該 活塞#上。該活塞桿u上的 一 的在封表面可設計成一完全覆 蛊的圓環狀的圓柱表面或分成 柱密封唇口 19,其一起形成二上的平行、圓環狀圓 成該达封表面11。該密封唇口 19 僅在圖5的視圖比較浩举甘 仏〜 〜楚其中兩密封環舌月20及21在 轴方，上不重疊。兩件舌片2〇及21的重疊區域η 一起 形成虱岔表面22。該周邊的凹口 件舌片Μ及21的總^^ 17 了以看出延伸超過兩 在 並且進一步地沿著周邊方向延伸。 在圖5令s亥氣社、表面22顯示太 -h 4r wi 6^, ^ ^ a ”不/月楚，但是在此以表面22 上打點的形式來標示。該 較密或較疏的打點來表 i品° 22包含兩段，其以 區域係舌片20及21在去、 4杲打點的 .^y 在未何载的情況下重疊，而在裝載的 額外地以密封的方式彼此重置。 ”中.亥彈簧 在此—提南的滑動表面 央。此裎令Μ 係在该周邊凹口 17的圓中 兴此k向的滑動表面2 圓 兩件密封舌片2〇月”。者周邊方向延伸並且超越該 18，，接著維持在二二側面的非提高滑動表面區域18,及 開槽13可以砉： 動表面23側。前面已經提過的 上，且這此門^在該塑膠密封冑的外部周邊表面之 及整個周;除該周邊凹口 17的區域之外，延伸遍 該橋接…如圖6以及圖7所示。該橋接元件Ο 10 1331648 係由金屬製成。此可由傳統的機器鋼製成。該橋接元件i5 .具有側邊限制表面25,其末端為周邊斜切面％。如為該 •橋接元件15已經做過的敘述，開槽16係向内成形於該： 部表面之上。周邊肋27保留在兩相鄰開槽16之間。該橋 • 接元件1 5的兩個端面28逕指向徑向。 該橋接元件15的材料硬度明顯地大於該塑膠密封環1〇 的材料硬度。此設計的結果是，使用時磨損僅發生在塑勝 密封環1G的滑動表面18或提高的滑動表面⑴該提高的 鲁滑動表面23使該塑膠密封環1〇在此區域，至少在起始狀 態下，更加堅硬。在該塑膠密封環1〇的工作壽命期間， 該提高滑動表面23將一點一點地磨損。若提高的部份完 全地磨耗殆盡，則在原理上此區域將與非提高的侧端滑動 表面區域18’及18，，齊平。然而即使如此該塑膠密封環1〇 不需更換。尤其該密封環舌片2〇現在已經變薄並且因此 依據磨耗程度大小變得更加有彈性。然而同時，尤其是用 未硬化的活塞桿，可能會發生活塞桿一定程度之磨損。此 _意味著該塑膠密封環10半徑已某種程度地減少。然而由 於在橋接元件15之上無法實際確認磨耗，現在該橋接元 件15 μ際上亦僅放置於該中間區域内，因為該弧形橋接 元件1 5的内表面直徑大於塑膠密封環丨〇的直徑或半徑。 此最後結果為該塑膠密封環1 〇壽命明顯地增加，並且同 時拜使用該塑膠密封環之賜，降低該活塞桿上的磨耗。當 然兩者亦同時使得裝設有根據本發明的塑膠密封環的軸襯 的船舶柴油機的油耗明顯地降低。 玄到油％ 3以及該塑膠密逢玉^ ^ ^ ^ ^ ^ ^ ^ ~環為佳，ρ π + *衣3之間以中介地裝置 】中此環被揮到油環以及密封環的作用。在圖 它的-側在轴方Γ續的^態。該環大致上不同的地方在於 介的空間在Α門:上包含延伸於整個該環側面的凸輪，中 並進入持淨空’受污染的油以通過此組件流出 中立工間為佳。以ill·古4' -Γ 軸外方式可預防受污染的油進入曲 不論這些環的這肽雙重功At -u 密封if，姐掎4· ••又直力此，在此可以被敘述成 的設計。 #明，橋接元件15可具有該空氣接合部6 【圖式簡單說明】 簡二：體、部一…屬於任何類型的 圖2係一以在組裝之狀態下 _ 發明的活塞桿密封環，以及 白視圖顯不之根據本 圖3係以該重疊的接合部的經向視圖顯示同樣的活塞 桿密封環； J ^ 圖4係再以軸向視圖顯示本身為塑膠製之同樣的活塞 桿祖封環，以及 圖班5係再以該重疊之接合部的徑向視圖顯示此活塞桿 密封環； 圖6係顯示弧形的橋接元件的軸向視圖，以及 圖7係—徑向視圖； 圖8係以軸向視圖顯示之根據目前科技之傳統的活塞 桿密封環，以及 12 1331648 圖9顯示沿著圖8中該重疊接合部區域的A-A剖線的 剖面視圖。 【主要元件符號說明】Χ^1648 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a sealing ring having an overlapping sealing plug. [Prior Art] A piston rod seal ring of the above type is applied to a piston rod of a combustion engine: a gland seal. Such gland seals are well known in particular for marine diesel engines and are described, for example, in the document μ-β·21'14,152 or Ερ_Α 〇, ΐ38,443. The gland of the piston rod is typically formed between the crank cover and the venting chamber. On the side of the crank cover, first the 'group scraper ring is placed in the gland of the tongue plug rod, with several seal rings immediately following it, 35 falling over the main side of the circle. The seal rings are used to bring the piston rod into a gas-tight contact. The piston rod must always be relied upon under pressure. 3 As the test results show, the maximum wear is inevitably occurring at the top and bottom of the live ^ $. The wear of the diameter range on the piston rod is the size of the tenth occurrence. As a result, the upper and lower dead center regions are brushed twice by the seal ring in each piston stroke cycle. Therefore, the seal ring must perform a relative movement of about 3-6 mm in the overlapping area of the sealing joint. Thereby, the upper and lower tongues of the sealing joint slide over each other. The surfaces of the two tongues which are placed on each other at the same time on the sealing joint are subjected to abrasion, which on the one hand are influenced by the friction of the two tongues made of the same material, and on the other hand by mixing into the oil as a lubricant. The effect of the worn metal part. The heavily contaminated oil increases the frictional losses on the two tongues of the sealing joint. By using a metal piston rod seal ring, the wear problem of the seal ring in the joint region is slight to the ground and is limited to a seal ring made of, for example, a soft metal of bronze. More significantly, it has been found that the metal piston rod seal ring causes a significant amount of friction loss in the piston rod itself, so that the seal as a whole becomes insufficient, and the disadvantage is that the crankshaft oil consumption is increased. Therefore, in recent years, more and more piston squeezing caps have been provided with plastic scraping rings and sealing rings. By means of these devices, the wear of the piston rod has been significantly reduced, and therefore the fuel consumption has been minimized: since the degradation of the seal is unexpectedly faster than expected, the seal ring must have been proven to be slamming & Only the replacement of these plastic sealing rings has been confirmed that the sealing ring in the area of the sealing joint will cause an accidental bubble. The sealing ring to be discussed here is first used for the gland disclosed in the footstep of the 14th reading. . SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to improve a plastic piston rod seal ring in such a manner as to overlap the sealing joint so that the article can be fattened and even sealed even with a wear of ::. With patent application _ i feature 夕 kind 2 rubber piston seal core to achieve this goal. Embodiments that have further advantages will be inferred from the scope of the patent application, and the meaning and practice will be explained in the following description with reference to the accompanying drawings. Preferred embodiments of the subject matter of the present invention are not shown in the drawings and are explained in detail in the following description. [Embodiment] Referring to Fig. 1, the structure of the ship is used. In such a gland 1, the venting chamber is used to understand the present invention, and the application of the diesel engine explains that the gland sealing seal seals the plenum chamber. In Figure 7 1331648, set the arrow f direction 'and' and set the crankcase in the direction of the arrow U. The dust mites have dust cover grasses, and different receiving grooves 2 are bonded to the inner wall thereof. A plurality of scraper rings 3 in such a manner that the oil adhering to the crank bar is guided back to the crank cover is attached to the annular groove 2 of the "chamber side" (four). To this end, a suitable oil flow channel 4 is incorporated into the compressed casing. The area in which the scraper ring 3 is mounted in the cover of the cap is referred to as the scraping zone, and the sealing area of the cap is followed and in the direction of the venting chamber. Similarly, the peripheral ring receiving recess #2 is formed inwardly in the sealing area, and the sealing ring 5 is placed in the performance of the figure, the sealing ring 5 is not as good as the conventional sealing ring, and has the oil Ring 3. Developed = Special scraper ring known from Patent WP: In the embodiment of = (4), a coil spring that applies a dusting force to the scraper ring 3 or the seal ring 5 is not shown. However, these must exist. This omission is only to make the picture not burden too much. For the sake of re-discussing the conventional piston rod seal ring, see Fig. 8 and Fig. 9, the latest pistons on the parts of the applicant, and the two have appeared in the body forming manufacturing and contain One double heart! The sealing ring 5 is in the dense joint portion 6. In the region where the heavy, airtight joint is overlapped as shown in the cross-sectional view of Fig. 9, the first ring end 7 and the other ring at the same time the ring end 7 sealingly receive another circle: 8^. The sliding surface 9 of ::4 is a -sealed surface 9a, and various forces are hardly applied thereto, and it is determined that the surface of the surface is on the surface of the hand. In the way of the soil ‘.,,, and the letter w is not specified. 8 1331648 No. Since the two plastic parts slide relative to each other here, and the peripheral helical spring operates in a closed manner in the arc-shaped opening # R: The spring I produces a radial pressure 2 wipe loss towards the central axis of the piston rod w. Therefore, the plastic (four) piston rod seal ring in the original assembled state can be seen in the towel of Fig. 2. The actual plastic seal ring is labeled $1〇. The plastic part is: Formed and includes an arc-shaped overlap region 12, the size of which varies depending on the degree of engagement with the diameter of the piston rod. A Depending on the change caused by the wear. The plastic sealing ring on the peripheral surface includes one or more peripheral slotted turns for guiding the peripheral coil springs 14<> The coil spring 14 can be joined by an integrally formed annular eyelet and a lock formed by integrally forming a hook-shaped eyelet. Depending on the required pressure, up to three such peripheral coil springs can be provided, in the region of the joint 6, a metal arcuate bridging element 15 is placed in the radial direction. The bridging element 15 similarly includes a slot 16 which, in the assembled state, is flat with the slot 13 on the plastic sealing ring. The plastic sealing ring 1 〇 comprises an inwardly facing peripheral recess 17 which is wider than the overlapping region and the metallic curved bridging element 15 in any case has a longitudinal extent smaller than the inwardly facing peripheral recess 17 When the plastic seal ring exhibits the smallest diameter. The inwardly facing peripheral recess 3 17 has a base which provides a sliding surface 18 for the arcuate bridging element 15. The curved bridge 15 and the inwardly facing peripheral recess 17 must cooperate with each other. In general, however, the radius of the arcuate bridging element 15 may be slightly larger than the radius of the sliding surface 18 of the inwardly facing peripheral recess 17. These two half positions cooperate with each other after a short period of time. Regarding this point, the subsequent drawings will be discussed again in 9 U31648. Figures 4 and 5 show that the glue is in the core itself. The plastic sealing ring has an internal sealing surface that is carried on the piston # under the condition of the device. The sealing surface of one of the piston rods u can be designed as a completely covered annular cylindrical surface or divided into column sealing lips 19 which together form a parallel, annular ring of the upper sealing surface 11. The sealing lip 19 is only in the view of Figure 5 compared to the hoisting Gan ~ ~ Chu which two seal ring tongues 20 and 21 on the axis side, do not overlap. The overlapping regions η of the two tabs 2 and 21 together form the serpentine surface 22. The peripheral notch tabs 21 and 21 are shown to extend more than two and further extend in the peripheral direction. In Fig. 5, shaiheshe, surface 22 shows too-h 4r wi 6^, ^ ^ a ” no / month Chu, but here is marked in the form of a dot on the surface 22. The dense or sparse dot The table 22 includes two sections which are overlapped by the region tongues 20 and 21 at the point of the tripping, 4 杲, without any load, while the loading is additionally sealed in a sealed manner. Set. "Zhong. Hai spring is here - the sliding surface of the south. The Μ 裎 Μ Μ 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的The sliding surface area 18 is raised, and the groove 13 can be: the moving surface 23 side. The upper side has been mentioned above, and the door is on the outer peripheral surface of the plastic sealing jaw and the entire circumference; except for the peripheral notch 17 Outside the area, extending over the bridge... as shown in Figures 6 and 7. The bridging element 13 10 1331648 is made of metal. This can be made of conventional machine steel. The bridging element i5 has a side limiting surface 25, the end is the peripheral beveled surface %. As has been described for the bridging element 15, the slot 16 is formed inwardly on the surface of the portion: the peripheral rib 27 remains in the adjacent slot 16 The two end faces 28 of the bridge member 15 are directed radially. The material hardness of the bridging element 15 is significantly greater than the material hardness of the plastic sealing ring 1 。. As a result of this design, wear only occurs during use. In the plastic sliding seal ring 1G sliding surface 18 or improved Sliding surface (1) The raised sliding surface 23 causes the plastic sealing ring 1 to be in this region, at least in the initial state, to be more rigid. During the working life of the plastic sealing ring 1 该, the raised sliding surface 23 will be Wear a little bit. If the raised part is completely worn out, then in principle this area will be flush with the non-raised side end sliding surface areas 18' and 18. However, even the plastic sealing ring 1 〇There is no need to replace. In particular, the sealing ring tongue 2 has now become thinner and therefore becomes more elastic depending on the degree of wear. However, at the same time, especially with an unhardened piston rod, a certain degree of wear of the piston rod may occur. This means that the radius of the plastic sealing ring 10 has been reduced to some extent. However, since the wear is not actually confirmed on the bridging element 15, the bridging element 15 μ is now only placed in the intermediate region because The inner surface diameter of the arcuate bridging element 15 is larger than the diameter or radius of the plastic sealing ring 。. The final result is that the life of the plastic sealing ring 1 明显 is significantly increased, and the same By using the plastic sealing ring, the wear on the piston rod is reduced. Of course, both of them also significantly reduce the fuel consumption of the marine diesel engine equipped with the bushing of the plastic sealing ring according to the present invention. And the plastic dense jade ^ ^ ^ ^ ^ ^ ^ ^ ^ ~ ring is better, ρ π + * between the clothes 3 between the device] in this ring is swept to the oil ring and the role of the seal ring. - the side of the axis is continuous. The ring is substantially different in that the space is in the door: the cam contains a cam that extends over the entire side of the ring, and enters the clear air 'contaminated oil to pass this The flow of components out of the neutral workshop is better. The ill·古 4'-Γ off-axis method can prevent the contaminated oil from entering the song. Regardless of the peptide, the peptide double work At-u seal if, sister 4·•• Here, the design can be described here. #明,Bridge element 15 may have the air joint portion 6 [Simplified description of the drawing] Jane 2: body, part one ... belongs to any type of Figure 2 in a state of assembly - the inventive piston rod seal ring, and The white view shows that the same piston rod seal ring is shown in the longitudinal view of the overlapped joint according to Fig. 3; J ^ Fig. 4 shows the same piston rod ancestor which is itself made of plastic in an axial view. The ring, and the Tuban 5, then show the piston rod seal ring in a radial view of the overlapping joint; Figure 6 is an axial view showing the arcuate bridging element, and Figure 7 is a radial view; A piston rod seal ring according to the current state of the art is shown in an axial view, and 12 1331648 Fig. 9 shows a cross-sectional view taken along line AA of the overlap joint region of Fig. 8. [Main component symbol description]
K 曲軸外罩 R 開槽 W 換氣室 Z 換氣室 1 壓蓋外罩 2 接收凹槽 3 到油環 4 油洩流道 5 密封環 6 重疊接合部 7 第一圓環端 8 第二圓環端 9 滑動表面 9a 密封表面 10 塑膠密封環 11 密封表面 12 重疊區域 13 周邊開槽 14 .螺旋彈簧 15 橋接元件 16 橋接元件中的開槽 13 1331648 17 凹口 ， 18 滑動表 185 非提高 18，， 非提高 19 密封唇 20 密封環 21 密封環 22 氣密表 23 提高的 25 側邊限 26 斜切面 27 周邊肋 28 端面K Crankshaft cover R Slot W Ventilation chamber Z Ventilation chamber 1 Gland cover 2 Receiving groove 3 to oil ring 4 Oil drain 5 Sealing ring 6 Overlap joint 7 First ring end 8 Second ring end 9 Sliding surface 9a Sealing surface 10 Plastic sealing ring 11 Sealing surface 12 Overlapping area 13 Peripheral grooving 14. Coil spring 15 Bridging element 16 Slot in the bridging element 13 1331648 17 Notch, 18 Sliding table 185 Not increased 18,, Non Increase 19 Sealing lip 20 Sealing ring 21 Sealing ring 22 Airtight table 23 Increased 25 Side limit 26 Beveled surface 27 Peripheral rib 28 End face
周邊 面 的側面滑動表面區域 的側面滑動表面區域Side sliding surface area of the side sliding surface area of the peripheral surface
D 舌片 舌片 面 滑動表面 制表面D tongue tongue surface sliding surface
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