TW202004050A - Seal chain - Google Patents
Seal chain Download PDFInfo
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- TW202004050A TW202004050A TW108114608A TW108114608A TW202004050A TW 202004050 A TW202004050 A TW 202004050A TW 108114608 A TW108114608 A TW 108114608A TW 108114608 A TW108114608 A TW 108114608A TW 202004050 A TW202004050 A TW 202004050A
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- pin
- bush
- ring
- seal ring
- groove
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- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
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- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
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- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
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- 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
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- 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
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3456—Pressing means without external means for pressing the ring against the face, e.g. slip-ring with a resilient lip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
Description
本發明是關於一種在内連結板的外側面與外連結板的内側面之間配置有密封部的密封型鏈條。The present invention relates to a sealed chain in which a sealing portion is arranged between an outer side surface of an inner connecting plate and an inner side surface of the outer connecting plate.
以往這種密封型鏈條已知有例如專利文獻1所示者。像這種密封型鏈條的密封機構是由鋼製的環狀密封承載構件、第1彈性密封環、鋼製密封環、及第2彈性密封環所構成。第1彈性密封環外嵌在從內板的外側面部分突出的襯套的外周面,並配置於環狀密封承載構件與內板之間。鋼製密封環配置於環狀密封承載構件的外周側,並與內板的外側面抵接。第2彈性密封環被包夾在鋼製密封環的内周面與環狀密封承載構件的外周面之間。Conventionally, such a sealed chain is known, for example, as shown in
環狀密封承載構件具有碟狀密封承載部及輪緣狀密封承載部。碟狀密封承載部外嵌固定於連結銷並與外板的内側面抵接,同時配置於襯套的端面與外板的内側面之間。輪緣狀密封承載部在碟狀密封承載部的外周側朝向內板凸出。The ring-shaped seal bearing member has a disk-shaped seal bearing portion and a rim-shaped seal bearing portion. The disk-shaped seal bearing part is externally fixed to the connecting pin and abuts against the inner side of the outer plate, and is arranged between the end surface of the bush and the inner side of the outer plate. The rim-shaped seal bearing portion protrudes toward the inner plate on the outer peripheral side of the disk-shaped seal bearing portion.
先前技術文獻 專利文獻 專利文獻1:日本特開2008-157423號公報Prior technical literature Patent Literature Patent Document 1: Japanese Patent Laid-Open No. 2008-157423
發明所欲解決之課題 然而,上述密封型鏈條當在長時間的使用下,連結銷與襯套間的滑動面隨著磨耗而使得密封型鏈條發生磨耗伸長時,由於環狀密封承載構件會追隨連結銷,故第1彈性密封環會被襯套的外周面與環狀密封承載構件的輪緣狀密封承載部包夾而磨損。進而當連結銷與襯套間的滑動面被磨耗時,由於襯套會與環狀密封承載構件的輪緣狀密封承載部抵接,故密封型鏈條的張力負載會作用在輪緣狀密封承載部上。因此存有輪緣狀密封承載部可能破損的問題。Problems to be solved by the invention However, when the above-mentioned sealed chain is used for a long period of time, the sliding surface between the connecting pin and the bushing wears out and causes the sealed chain to wear and extend. Since the ring-shaped seal carrier member will follow the connecting pin, the first The elastic seal ring is sandwiched between the outer peripheral surface of the bush and the rim-shaped seal bearing portion of the ring-shaped seal bearing member and worn. Furthermore, when the sliding surface between the connecting pin and the bushing is worn, the bushing will contact the rim-shaped sealing bearing portion of the annular seal-bearing member, so the tensile load of the sealed chain acts on the rim-shaped sealing bearing Ministry. Therefore, there is a problem that the rim-shaped seal bearing portion may be damaged.
本發明的目的在於提供一種密封型鏈條,其能夠解決即使發生磨耗伸長導致銷側密封環及襯套側密封環可能破損的問題。An object of the present invention is to provide a sealed chain that can solve the problem that the pin-side seal ring and the bush-side seal ring may be damaged even if abrasion elongation occurs.
用以解決課題之手段 以下,針對用以解決上述課題的手段及其作用效果加以記載。Means to solve the problem Hereinafter, the means for solving the above-mentioned problems and their effects will be described.
解決上述課題的密封型鏈條具備一對内連結板、筒狀的襯套、銷、一對外連結板、及環狀的密封部;一對所述内連結板以互相對向且分離的方式配置;所述筒狀的襯套貫通一對所述内連結板,在兩端部從一對所述内連結板的外側分別突出的狀態下與一對所述内連結板接合;所述銷以能夠旋轉的方式***所述襯套;一對所述外連結板以從外側包夾一對所述内連結板的方式配置,並分別與所述銷的兩端部接合;所述環狀的密封部以在所述内連結板的外側面與所述外連結板的内側面之間將所述銷及所述襯套包圍的方式配置;其中,所述密封部具備環狀的銷側密封環、環狀的襯套側密封環、及環狀的密封構件;所述環狀的銷側密封環相對所述銷以能夠一體旋轉的方式接合;所述環狀的襯套側密封環相對所述襯套以能夠一體旋轉的方式接合,並在所述銷的軸方向上與所述銷側密封環對向;所述環狀的密封構件以包夾在所述銷側密封環與所述襯套側密封環之間的方式配置。The sealed chain for solving the above-mentioned problems includes a pair of inner connecting plates, a cylindrical bush, a pin, a pair of outer connecting plates, and a ring-shaped sealing portion; the pair of inner connecting plates are arranged to face and separate from each other The cylindrical bush penetrates the pair of inner connecting plates, and is joined to the pair of inner connecting plates in a state where both ends protrude from the outer sides of the pair of inner connecting plates, respectively; The bush is rotatably inserted; a pair of the outer connecting plates are arranged so as to sandwich a pair of the inner connecting plates from the outside, and are respectively engaged with both ends of the pin; the ring-shaped The sealing portion is arranged so as to surround the pin and the bush between the outer surface of the inner connecting plate and the inner surface of the outer connecting plate; wherein the sealing portion includes an annular pin-side seal A ring, an annular bushing-side sealing ring, and an annular sealing member; the annular pin-side sealing ring is rotatably engaged with the pin; the annular bushing-side sealing ring is opposed The bushing is joined in an integrally rotatable manner and faces the pin-side seal ring in the axial direction of the pin; the ring-shaped seal member is sandwiched between the pin-side seal ring and the The arrangement between the seal rings on the bush side is described.
根據該構成,當在長時間的使用下,銷與襯套間的滑動面隨著磨耗而使得密封型鏈條發生磨耗伸長時,由於銷側密封環會追隨銷,且襯套側密封環會追隨襯套,故銷側密封環及襯套側密封環相互間幾乎沒有干涉地在與銷的軸方向垂直的方向發生相對的位置偏移。此時,由於銷側密封環及襯套側密封環不會分別干涉到襯套及銷,故密封型鏈條的張力負載不會作用在銷側密封環及襯套側密封環上。因此,能夠解決即使密封型鏈條發生磨耗伸長導致銷側密封環及襯套側密封環可能破損的問題。According to this configuration, when the sliding surface between the pin and the bushing wears out and causes the seal-type chain to wear and extend due to wear for a long time, the pin-side sealing ring will follow the pin and the bushing-side sealing ring will follow Because of the bushing, the pin-side seal ring and the bush-side seal ring are displaced relative to each other in a direction perpendicular to the axial direction of the pin with little interference. At this time, since the pin-side seal ring and the bush-side seal ring do not interfere with the bush and the pin, respectively, the tensile load of the sealed chain does not act on the pin-side seal ring and the bush-side seal ring. Therefore, it is possible to solve the problem that the seal ring on the pin side and the seal ring on the bush side may be damaged even if the seal type chain wears out.
上述密封型鏈條較佳為:在所述銷側密封環與所述襯套側密封環之間,於徑方向上排列配置有外徑互不相同的多個所述密封構件。In the above-mentioned sealing chain, it is preferable that a plurality of the sealing members having different outer diameters are arranged in a radial direction between the pin-side sealing ring and the bushing-side sealing ring.
根據該構成,能夠提升密封部的密封性。According to this configuration, it is possible to improve the sealing performance of the sealing portion.
上述密封型鏈條較佳為:所述銷側密封環在與所述襯套側密封環的對向面形成有環狀的銷側凹溝,所述襯套側密封環在與所述銷側密封環的對向面形成有環狀的襯套側凹溝,所述密封構件被所述銷側凹溝與所述襯套側凹溝包夾。The above-mentioned sealing type chain is preferably: the pin-side seal ring is formed with an annular pin-side concave groove on the surface opposite to the bush-side seal ring, and the bush-side seal ring is on the pin side An annular bush-side concave groove is formed on the opposite surface of the seal ring, and the sealing member is sandwiched between the pin-side concave groove and the bush-side concave groove.
根據該構成,能夠決定密封構件的位置,同時提高密封部的密封性。According to this configuration, the position of the sealing member can be determined, and the sealing performance of the sealing portion can be improved.
上述密封型鏈條較佳為:所述銷側凹溝及所述襯套側凹溝在徑方向的中央部的深度最深,越往徑方向的兩端部深度越淺。In the above-mentioned sealed chain, it is preferable that the depth of the pin-side concave groove and the bush-side concave groove in the radial direction is the deepest, and the depth is shallower toward the both ends in the radial direction.
根據該構成,當被銷側凹溝與襯套側凹溝所形成的在徑方向的中央部兩者所包夾的密封構件被磨耗而使其剖面積變小時,密封構件與銷側凹溝或襯套側凹溝之間會成為出現空隙的狀態。該狀態下若有異物從密封構件的外周側進入至銷側凹溝與襯套側凹溝之間的話,密封構件會被該異物往徑方向的内側擠壓。這樣一來,由於密封構件會成為被銷側凹溝與襯套側凹溝所形成的在徑方向的内側的端部兩者所包夾的狀態,故密封構件與銷側凹溝及襯套側凹溝之間的空隙會消失。因此,即使在密封構件被磨耗而使其剖面積變小的情形也能夠抑制異物的進入。According to this configuration, when the seal member sandwiched by both the radial center portion formed by the pin-side concave groove and the bush-side concave groove is worn and its cross-sectional area becomes small, the seal member and the pin-side concave groove Or, there will be a gap between the grooves on the side of the bush. In this state, if a foreign substance enters between the pin-side concave groove and the bush-side concave groove from the outer peripheral side of the seal member, the seal member will be pressed radially inward by the foreign substance. In this way, since the sealing member is sandwiched by both the radially inner ends formed by the pin-side concave groove and the bush-side concave groove, the seal member and the pin-side concave groove and the bush The gap between the undercut grooves will disappear. Therefore, even when the sealing member is worn and its cross-sectional area becomes small, the entry of foreign matter can be suppressed.
發明功效 根據本發明,能夠解決即使密封型鏈條發生磨耗伸長導致銷側密封環及襯套側密封環可能破損的問題。Invention effect According to the present invention, it is possible to solve the problem that the seal ring on the pin side and the seal ring on the bush side may be damaged even if the seal type chain wears out.
以下,針對密封型鏈條的一實施方式依照圖示進行說明。Hereinafter, one embodiment of the sealed chain will be described in accordance with the drawings.
如圖1所示,密封型鏈條11具備由例如鋼材所構成的多個内連結部13及多個外連結部15。各内連結部13具有在寬度方向Y互相對向且分離的方式配置的一對内連結板12。各外連結部15具有在寬度方向Y從外側包夾一對内連結板12的方式配置的一對外連結板14。As shown in FIG. 1, the sealed
内連結部13的内連結板12及外連結部15的外連結板14沿著直列方向X延伸而呈現大致矩形板狀,該直列方向X即密封型鏈條11被從與寬度方向Y垂直的長邊方向的一側拉扯而移動時的移動方向。此外,在寬度方向Y對向的内連結板12及外連結板14以互相平行的方式配置。The inner connecting
因此,本實施方式的密封型鏈條11就是所謂的扁平式鏈條。也就是說,各内連結部13構成為:一對内連結板12間的間隔在直列方向X上於内連結部13的一端側和另一端側相等,各外連結部15構成為:一對外連結板14間的間隔等於直列方向X上外連結部15的一端側至另一端側。Therefore, the sealed
在内連結板12直列方向X的兩端部分別形成有貫通寬度方向Y的圓形的襯套***孔17,該寬度方向Y即内連結板12的厚度方向。在内連結部13中對向的一對内連結板12間組裝有2個圓筒狀的襯套18,該圓筒狀的襯套18維持該等一對内連結板12間的距離。Circular
襯套18的兩端部對於一對内連結板12的襯套***孔17以分別無法旋轉的方式嵌合(接合)。此時,襯套18的兩端部中的前端部分分別較一對内連結板12往寬度方向Y的外側突出。也就是說,襯套18於兩端部貫通一對内連結板12。襯套18藉由***至圓筒狀的輥19而以能夠旋轉的方式支撐輥19。也就是說,襯套18鬆動地嵌合於輥19。Both end portions of the
在外連結板14直列方向X的兩端部分別形成有貫通寬度方向Y的圓形的銷***孔22,該寬度方向Y即外連結板14的厚度方向。在銷***孔22插嵌有圓柱狀的銷21,該銷21的外徑稍微小於襯套18的内徑。在銷21的前端部貫通形成有孔23。該孔23***有用以使得銷21不會從銷***孔22脫落的防脫銷24。防脫銷24的前端部呈彎曲,本身不會從孔23脫落。Circular
此外,外連結部15的一對外連結板14在從外側包夾内連結部13的一對内連結板12的方式配置的狀態下,透過銷21而相對於内連結部13的内連結板12以自由擺動的方式連結,其中在一對内連結板12間組裝形成有襯套18。此時,銷21在兩端部以外的中間部以能夠旋轉的方式***至組裝在内連結部13的一對内連結板12間的襯套18的狀態下,以兩端部相對於外連結部15的一對外連結板14的銷***孔22分別不能夠旋轉的方式嵌合(接合)。In addition, the pair of
因此,銷21的兩端部分別貫通一對外連結板14,其中在直列方向X相鄰的内連結部13的内連結板12與外連結部15的外連結板14藉由直列方向X的端部彼此透過銷21及襯套18以自由擺動的方式連結。Therefore, both ends of the
在銷21的基端面25形成有圓形的凹部26。從銷21的内部中凹部26的底面的中央部至銷21中作為軸方向的寬度方向Y的中央部的位置形成有直線狀延伸的連通路27。在連通路27中凹部26側的開口安裝有用以往連通路27注入潤滑脂的潤滑脂接頭28。A
在銷21的外周面21a中與襯套18對應的位置形成有於寬度方向Y延伸的溝29。溝29與連通路27中凹部26側的相反側的端部藉由銷孔30連通。因此,連通路27將潤滑脂接頭28與銷孔30加以連通。A
在銷21的凹部26以可拆卸的方式裝設有由橡膠等可撓性材料構成的有底圓形箱狀的頂蓋31。在銷21的凹部26裝設有頂蓋31的狀態、頂蓋31將潤滑脂接頭28加以包覆。在頂蓋31的底壁的中央部貫通形成有細孔31a。The
在銷21的外周面21a與襯套18的内周面18a之間配置有作為潤滑劑的潤滑脂。在銷21的外周面21a與襯套18的内周面18a之間能夠從潤滑脂接頭28通過連通路27、銷孔30、及溝29而補充潤滑脂。其中,在内連結板12的外側面12b與外連結板14的内側面14a之間配置有圓環狀的密封部32。圓環狀的密封部32以包圍銷21及襯套18的方式配置。Grease as a lubricant is arranged between the outer
接著,針對密封部32的構成進行詳述。Next, the structure of the sealing
如圖1及圖2所示,密封部32具備呈現圓環板狀的金屬製的銷側密封環33、呈現圓環板狀的金屬製的襯套側密封環34、作為圓環狀的密封構件的一例的大徑O型環35、作為圓環狀的密封構件的一例的方型環36、及圓環狀的小徑O型環37。As shown in FIGS. 1 and 2, the
銷側密封環33相對銷21以能夠一體旋轉的方式外嵌(接合),其中在寬度方向Y的外側的面與外連結板14的内側面14a接觸。襯套側密封環34相對襯套18以能夠一體旋轉的方式外嵌(接合),其中在銷21的軸方向的寬度方向Y與銷側密封環33對向。襯套側密封環34在寬度方向Y的内側的面與内連結板12的外側面12b接觸。襯套側密封環34與銷側密封環33在徑方向及直列方向X上並未重疊。The pin-
大徑O型環35及小徑O型環37於剖面視呈現圓形狀,方型環36於剖面視呈現矩形狀。大徑O型環35及方型環36以包夾在銷側密封環33與襯套側密封環34之間的方式配置。小徑O型環37以包夾在銷側密封環33與襯套18的端面18b之間的方式配置。The large-diameter O-
大徑O型環35、方型環36、及小徑O型環37皆由彈性體等可撓性材料構成。大徑O型環35、方型環36、及小徑O型環37當中,大徑O型環35的外徑最大,小徑O型環37的外徑最小。因此,大徑O型環35、方型環36、及小徑O型環37其外徑互不相同,並於徑方向排列配置。在大徑O型環35、方型環36、及小徑O型環37上充分塗布有作為潤滑劑的潤滑脂。The large-diameter O-
在銷側密封環33中作為襯套側密封環34的對向面33a其中對應大徑O型環35及方型環36的位置分別形成有作為圓環狀的銷側凹溝的一例的銷側第1凹溝38及作為圓環狀的銷側凹溝的一例的銷側第2凹溝39。銷側第1凹溝38於剖面視呈現大致半橢圓形狀,其底面與大徑O型環35壓接。銷側第1凹溝38在銷側密封環33的徑方向的中央部的深度最深,越往該徑方向的兩端部深度越淺。銷側第2凹溝39於剖面視呈現大致U字狀,並在方型環36的厚度方向(寬度方向Y)約一半的位置嵌合。In the pin-
在銷側密封環33中作為襯套18的端面18b的對向面33b其中對應小徑O型環37的位置形成有銷側第3凹溝40。銷側第3凹溝40於剖面視呈現大致半橢圓形狀,其底面與小徑O型環37壓接。銷側第3凹溝40在銷側密封環33的徑方向的中央部的深度最深,越往該徑方向的兩端部深度越淺。A
在襯套側密封環34中作為銷側密封環33的對向面34a分別形成有作為圓環狀的襯套側凹溝的一例的襯套側第1凹溝41及作為圓環狀的襯套側凹溝的一例的襯套側第2凹溝42。襯套側第1凹溝41於剖面視呈現大致半橢圓形狀,其底面與大徑O型環35壓接。襯套側第1凹溝41在襯套側密封環34的徑方向的中央部的深度最深,越往該徑方向的兩端部深度越淺。襯套側第2凹溝42於剖面視呈現大致L字狀,並在方型環36的厚度方向(寬度方向Y)約一半的位置嵌合。此時,方型環36的内周面36a與襯套18的外周面18c接觸。In the bush
在襯套18的端面18b中對應小徑O型環37的位置形成有圓環狀的襯套凹溝43。襯套凹溝43於剖面視呈現大致半橢圓形狀,其底面與小徑O型環37壓接。襯套凹溝43在襯套側密封環34的徑方向的中央部的深度最深,越往該徑方向的兩端部深度越淺。An
大徑O型環35被銷側第1凹溝38與襯套側第1凹溝41所形成的在徑方向的中央部兩者所包夾。銷側第1凹溝38與襯套側第1凹溝41形成為互相一致的形狀。方型環36被銷側第2凹溝39與襯套側第2凹溝42所包夾。銷側第2凹溝39與襯套側第2凹溝42及襯套18的外周面18c所形成的溝形成為幾乎互相一致的形狀。The large-diameter O-
小徑O型環37被銷側第3凹溝40與襯套凹溝43所形成的在徑方向的中央部兩者所包夾。銷側第3凹溝40與襯套凹溝43形成為互相一致的形狀。在銷側密封環33中作為襯套側密封環34的對向面33a與襯套側密封環34中作為銷側密封環33的對向面34a之間形成有些微的空隙S1。在銷側密封環33中作為襯套18的端面18b的對向面33b與襯套18的端面18b之間形成有些微的空隙S2。空隙S1的大小與空隙S2的大小幾乎相同。The small-diameter O-
接著,針對密封型鏈條11的作用進行說明。Next, the function of the sealed
在循環狀的密封型鏈條11以卷繞的方式咬合在互相分離地配置的一對鏈輪(圖示省略)的狀態下,當旋轉一側的鏈輪時,密封型鏈條11會在一對鏈輪的周邊繞行移動。若以此方式長時間使用密封型鏈條11的話,銷21的外周面21a與襯套18的内周面18a之間就會產生磨耗。In a state where the circular sealed
這樣一來,隨著銷21的外周面21a與襯套18的内周面18a之間的空隙變大使得密封型鏈條11伸長,也就是發生磨耗伸長。當密封型鏈條11發生磨耗伸長時,密封型鏈條11的張力負載對於外連結板14及内連結板12的作用為互相顛倒。詳細而言,密封型鏈條11的張力負載會對於外連結板14往直列方向X的一側的方向作用,並且對於内連結板12往直列方向X的另一側的方向作用。In this way, as the gap between the outer
因此,如圖3所示,銷21和襯套18間的位置在直列方向X(與銷21的軸方向垂直的方向)相對偏移對應於銷21的外周面21a與襯套18的内周面18a所磨耗的部分的量。此時,銷側密封環33會追隨銷21,襯套側密封環34會追隨襯套18。因此,銷21的外周面21a與襯套18的内周面18a所磨耗的部分使得銷側密封環33與襯套側密封環34間的位置在直列方向X發生相對的偏移。Therefore, as shown in FIG. 3, the relative displacement between the
如此一來,大徑O型環35、方型環36、及小徑O型環37伴隨著銷側密封環33與襯套側密封環34間的位置偏移而承受剪切力導致彈性變形。此時,由於銷側密封環33與襯套側密封環34在直列方向X上以不重疊的方式配置,故幾乎不會互相干涉。As a result, the large-diameter O-
除此之外,由於銷側密封環33及襯套側密封環34不會分別干涉到襯套18及銷21,故密封型鏈條11的張力負載不會作用在銷側密封環33及襯套側密封環34上。因此,即使密封型鏈條11發生磨耗伸長,銷側密封環33及襯套側密封環34也不會破損。In addition, since the pin
此外,如圖4所示,密封部32具有如下構造:大徑O型環35被剖面視呈現大致橢圓形狀的銷側第1凹溝38與襯套側第1凹溝41所形成的在徑方向的中央部兩者所包夾。因此,當大徑O型環35被磨耗而使其線徑(剖面積)從圖4的二點鏈線所示的狀態縮小至實線所示的狀態時,大徑O型環35與銷側第1凹溝38或襯套側第1凹溝41之間會成為出現空隙的狀態。In addition, as shown in FIG. 4, the
該狀態下若有異物從大徑O型環35的外周側以圖4的箭頭所示的方式進入至銷側第1凹溝38與襯套側第1凹溝41之間的話,大徑O型環35會被該異物往徑方向的内側擠壓。這樣一來,由於大徑O型環35會成為被銷側第1凹溝38與襯套側第1凹溝41所形成的在徑方向的内側的端部兩者所包夾的狀態,故大徑O型環35與銷側第1凹溝38及襯套側第1凹溝41之間的空隙會消失。因此,密封部32即使在大徑O型環35被磨耗而使其線徑變小的情形也能夠抑制異物的進入。In this state, if a foreign object enters between the first
其中,密封部32即使在小徑O型環37被磨耗而使其線徑變小的情形也能夠與上述大徑O型環35的情形相同地抑制異物的進入。However, even when the small-diameter O-
根據以上詳述的實施方式能夠發揮如下效果。According to the embodiment detailed above, the following effects can be exerted.
(1)密封型鏈條11中,密封部32具備環狀的銷側密封環33及環狀的襯套側密封環34,環狀的銷側密封環33相對於銷21以能夠一體旋轉的方式接合,襯套側密封環34相對於襯套18以能夠一體旋轉的方式接合,並在銷21的軸方向亦即寬度方向Y上與銷側密封環33對向。根據該構成,當密封型鏈條11在長時間的使用下,銷21與襯套18間的滑動面隨著磨耗而使得密封型鏈條11發生磨耗伸長時,由於銷側密封環33會追隨銷21,且襯套側密封環34會追隨襯套18,故銷側密封環33及襯套側密封環34相互間幾乎沒有干涉地在直列方向X發生相對的位置偏移。此時,由於銷側密封環33及襯套側密封環34不會分別干涉到襯套18及銷21,故密封型鏈條11的張力負載不會作用在銷側密封環33及襯套側密封環34上。因此,能夠解決即使密封型鏈條11發生磨耗伸長導致銷側密封環33及襯套側密封環34可能破損的問題。(1) In the sealed
(2)密封型鏈條11中,在銷側密封環33與襯套側密封環34之間,於徑方向上排列配置有外徑互不相同的大徑O型環35、方型環36、及小徑O型環37。根據該構成,能夠提升密封部32的密封性。(2) In the seal-
(3)密封型鏈條11中,大徑O型環35被銷側第1凹溝38與襯套側第1凹溝41所形成的在徑方向的中央部兩者所包夾,方型環36被銷側第2凹溝39與襯套側第2凹溝42所包夾,小徑O型環37被銷側第3凹溝40與襯套凹溝43所形成的在徑方向的中央部兩者所包夾。根據該構成,能夠決定大徑O型環35、方型環36、及小徑O型環37的個別的位置,同時提高密封部32的密封性。(3) In the sealed
(4)密封型鏈條11中,銷側第1凹溝38及襯套側第1凹溝41在徑方向的中央部的深度最深,越往徑方向的兩端部深度越淺。根據該構成,當被銷側第1凹溝38及襯套側第1凹溝41在徑方向的中央部兩者所包夾的大徑O型環35被磨耗而使其線徑(剖面積)變小時,大徑O型環35與銷側第1凹溝38或襯套側第1凹溝41之間會成為出現空隙的狀態。該狀態下若有異物從大徑O型環35的外周側進入至銷側第1凹溝38與襯套側第1凹溝41之間的話,大徑O型環35會被該異物往徑方向的内側擠壓。這樣一來,由於大徑O型環35會成為被銷側第1凹溝38及襯套側第1凹溝41在徑方向的内側的端部兩者所包夾的狀態,故大徑O型環35與銷側第1凹溝38及襯套側第1凹溝41之間的空隙會消失。因此,即使在大徑O型環35被磨耗而使其線徑變小的情形也能夠抑制異物的進入。(4) In the sealed
(5)密封型鏈條11中,銷側第3凹溝40及襯套凹溝43在徑方向的中央部的深度最深,越往徑方向的兩端部深度越淺。根據該構成,當被銷側第3凹溝40及襯套凹溝43在徑方向的中央部兩者所包夾的小徑O型環37被磨耗而使其線徑(剖面積)變小時,小徑O型環37與銷側第3凹溝40或襯套凹溝43之間會成為出現空隙的狀態。該狀態下若有異物從小徑O型環37的外周側進入至銷側第3凹溝40與襯套凹溝43之間的話,小徑O型環37會被該異物往徑方向的内側擠壓。這樣一來,由於小徑O型環37會成為被銷側第3凹溝40及襯套凹溝43在徑方向的内側的端部兩者所包夾的狀態,故小徑O型環37與銷側第3凹溝40及襯套凹溝43之間的空隙會消失。因此,即使在小徑O型環37被磨耗而使其線徑變小的情形也能夠抑制異物的進入。(5) In the sealed
(變更例)(Example of change)
其中,上述實施方式也能夠變更如下。However, the above embodiment can also be changed as follows.
也能夠將銷側第1凹溝38及襯套側第1凹溝41分別形成為沿著大徑O型環35的剖面形狀的剖面視半圓形狀。The first
也能夠將銷側第3凹溝40及襯套凹溝43分別形成為沿著小徑O型環37的剖面形狀的剖面視半圓形狀。The
也能夠省略銷側第1凹溝38及襯套側第1凹溝41當中任一者。It is also possible to omit any one of the
也能夠省略銷側第3凹溝40及襯套凹溝43當中任一者。It is also possible to omit any one of the pin-side
也能夠省略銷側第2凹溝39與襯套側第2凹溝42當中任一者。Either the
也能夠省略方型環36及小徑O型環37,而僅設置大徑O型環35。此時,能夠在被省略的2個環所佔的空間儲存作為潤滑劑的潤滑脂。The
也能夠省略大徑O型環35及小徑O型環37,而僅設置方型環36。此時,能夠在被省略的2個環所佔的空間儲存作為潤滑劑的潤滑脂。It is also possible to omit the large-diameter O-
也能夠使用例如使用有不織布等纖維的纖維密封材來取代方型環36。For example, a fiber sealing material using fibers such as nonwoven fabric can be used instead of the
密封型鏈條11也能夠是對向的2個連結板在直列方向X的一端側的寬度較另一側的寬度窄的方式彎曲的連結部藉由襯套18及銷21以能夠擺動的方式連結多個者,也就是所謂的偏位式的鏈條。The sealed
11‧‧‧密封型鏈條
12‧‧‧内連結板
14‧‧‧外連結板
18‧‧‧襯套
21‧‧‧銷
32‧‧‧密封部
33‧‧‧銷側密封環
33a、34a‧‧‧對向面
34‧‧‧襯套側密封環
35‧‧‧大徑O型環,其作為密封構件的一例
36‧‧‧方型環,其作為密封構件的一例
37‧‧‧小徑O型環
38‧‧‧銷側第1凹溝,其作為銷側凹溝的一例
39‧‧‧銷側第2凹溝,其作為銷側凹溝的一例
41‧‧‧襯套側第1凹溝,其作為襯套側凹溝的一例
42‧‧‧襯套側第2凹溝,其作為襯套側凹溝的一例11‧‧‧sealed
圖1為表示一實施方式的密封型鏈條的一部分的剖面圖。 圖2為圖1的主要部分的擴大圖。 圖3為表示圖1中發生磨耗伸長時的狀態的主要部分的擴大圖。 圖4為表示圖1中大徑O型環被磨耗時的狀態的主要部分的擴大圖。FIG. 1 is a cross-sectional view showing a part of a sealed chain according to an embodiment. FIG. 2 is an enlarged view of the main part of FIG. 1. Fig. 3 is an enlarged view of a main part showing a state when wear elongation occurs in Fig. 1. 4 is an enlarged view of a main part showing a state when the large-diameter O-ring in FIG. 1 is worn.
11‧‧‧密封型鏈條 11‧‧‧sealed chain
12‧‧‧內連結板 12‧‧‧Inner link board
12b‧‧‧內連結板的外側面 12b‧‧‧Outer side of inner connecting plate
14‧‧‧外連結板 14‧‧‧External link board
14a‧‧‧外連結板的內側面 14a‧‧‧Inner side of outer connecting plate
18‧‧‧襯套 18‧‧‧ Bush
21‧‧‧銷 21‧‧‧pin
32‧‧‧密封部 32‧‧‧Seal
33‧‧‧銷側密封環 33‧‧‧pin side sealing ring
34‧‧‧襯套側密封環 34‧‧‧ Bush side seal ring
35‧‧‧大徑O型環 35‧‧‧large diameter O-ring
36‧‧‧方型環 36‧‧‧square ring
37‧‧‧小徑O型環 37‧‧‧small diameter O-ring
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018089938A JP6662405B2 (en) | 2018-05-08 | 2018-05-08 | Seal chain |
JP2018-089938 | 2018-05-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW202004050A true TW202004050A (en) | 2020-01-16 |
TWI735870B TWI735870B (en) | 2021-08-11 |
Family
ID=68480914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW108114608A TWI735870B (en) | 2018-05-08 | 2019-04-26 | Seal chain |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP6662405B2 (en) |
KR (1) | KR102292941B1 (en) |
CN (1) | CN110454546B (en) |
TW (1) | TWI735870B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI789792B (en) * | 2021-06-21 | 2023-01-11 | 桂盟企業股份有限公司 | Oil seal chain |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4410348B2 (en) * | 1999-09-20 | 2010-02-03 | 大同工業株式会社 | Seal chain |
JP3755656B2 (en) * | 2002-04-24 | 2006-03-15 | 株式会社椿本チエイン | Seal chain |
JP3849862B2 (en) * | 2002-04-26 | 2006-11-22 | 株式会社椿本チエイン | Seal chain |
JP2004256262A (en) * | 2003-02-26 | 2004-09-16 | Daido Kogyo Co Ltd | Seal chain |
JP4255787B2 (en) * | 2003-08-28 | 2009-04-15 | 株式会社椿本チエイン | Seal chain |
JP2008157423A (en) | 2006-12-26 | 2008-07-10 | Tsubakimoto Chain Co | Seal chain |
JP4823191B2 (en) * | 2007-09-27 | 2011-11-24 | 日立機材株式会社 | Chen |
JP4700092B2 (en) * | 2008-10-01 | 2011-06-15 | 株式会社椿本チエイン | Automatic oiling chain |
JP5822717B2 (en) * | 2011-12-27 | 2015-11-24 | 株式会社椿本チエイン | Seal chain |
CN203009702U (en) * | 2012-12-19 | 2013-06-19 | 杭州自强链传动有限公司 | Step chain with filling cup |
CN203670609U (en) * | 2013-12-18 | 2014-06-25 | 杭州自强链传动有限公司 | Chain used for excessive-dust environment |
CN205101465U (en) * | 2015-11-24 | 2016-03-23 | 天津市强力链条有限公司 | Sealed chain |
-
2018
- 2018-05-08 JP JP2018089938A patent/JP6662405B2/en active Active
-
2019
- 2019-04-26 TW TW108114608A patent/TWI735870B/en active
- 2019-04-30 CN CN201910363354.5A patent/CN110454546B/en active Active
- 2019-05-02 KR KR1020190051309A patent/KR102292941B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CN110454546A (en) | 2019-11-15 |
KR102292941B1 (en) | 2021-08-25 |
JP6662405B2 (en) | 2020-03-11 |
JP2019196790A (en) | 2019-11-14 |
TWI735870B (en) | 2021-08-11 |
KR20190128563A (en) | 2019-11-18 |
CN110454546B (en) | 2021-07-16 |
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