TWI339240B - Cylinder body of engine and method of manufacturing the same - Google Patents
Cylinder body of engine and method of manufacturing the same Download PDFInfo
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- TWI339240B TWI339240B TW097120800A TW97120800A TWI339240B TW I339240 B TWI339240 B TW I339240B TW 097120800 A TW097120800 A TW 097120800A TW 97120800 A TW97120800 A TW 97120800A TW I339240 B TWI339240 B TW I339240B
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- cylinder
- sleeve
- cylinder sleeve
- cylinder body
- casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/04—Cylinders; Cylinder heads having cooling means for air cooling
- F02F1/06—Shape or arrangement of cooling fins; Finned cylinders
- F02F1/08—Shape or arrangement of cooling fins; Finned cylinders running-liner and cooling-part of cylinder being different parts or of different material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
1339240 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種用於引擎夕：▲ 士轴 7丨字之汽缸本體及一種製造汽缸 本體之方法，在汽缸本體中，、分Α, 士 r π缸套筒藉由鑄造塗佈被提 供。 【先前技術】 此種類之用於引擎之習知汽缸本體在（例如）專利文獻1 中發現有所描述。專利文獻i中所揭示的汽缸本體之汽缸 套筒經形成為使知其在軸向方向上之中心部分與其兩端相 比厚度較大。 此意欲用於在汽缸本體之鑄造過程中防止汽缸套筒因較 大收縮力而變形，收縮力係藉由鋁合金之冷卻而產生。 又，汽缸套筒之一端曝露至汽缸本體之端表面以構成汽 虹本體之與〉飞缸頭部配合之表面的一部分。以此方式’在 汽缸套筒曝露至配合表面之情況下，配合表面在汽缸本體 之鑄造之後經受切割工作，且配合表面經精整以使得平 坦〇 [專利文獻 1] JP-A-59-74354 [專利文獻 2] JP-A-10-220278 【發明内容】 [本發明待解決之問題] 需要藉由縮短為在鑄造之後所執行的機械加工所需要之 時間來進一步降低包括專利文獻丨中所揭示之汽缸本體之 一般汽缸本體的製造成本。 I31790.doc1339240 IX. Description of the invention: [Technical field of the invention] The present invention relates to a cylinder body for an engine eve: ▲ axe 7 丨 word and a method for manufacturing a cylinder body, in the cylinder body, branching, The r π cylinder sleeve is provided by casting coating. [Prior Art] A conventional cylinder body for an engine of this kind is described, for example, in Patent Document 1. The cylinder sleeve of the cylinder body disclosed in Patent Document i is formed such that its central portion in the axial direction is thicker than its both ends. This is intended to prevent the cylinder sleeve from being deformed by the large contraction force during the casting process of the cylinder body, and the contraction force is generated by the cooling of the aluminum alloy. Further, one end of the cylinder sleeve is exposed to the end surface of the cylinder body to form a portion of the surface of the cylinder body that cooperates with the head of the flying cylinder. In this way, in the case where the cylinder sleeve is exposed to the mating surface, the mating surface is subjected to the cutting work after casting of the cylinder body, and the mating surface is finished to be flattened [Patent Document 1] JP-A-59-74354 [Patent Document 2] JP-A-10-220278 [Disclosure] The problem to be solved by the present invention needs to be further reduced by shortening the time required for machining performed after casting, including in the patent document The manufacturing cost of the general cylinder body of the cylinder body is disclosed. I31790.doc
H-U ::縮短為對汽缸本趙之與汽虹頭部配合之表面進行工 之酉t的㈣，可能形成Μ套筒，使得其在汽缸套筒 表面之側上的__端比剩餘部分薄，以便減少相對較 硬之汽缸套筒被切割之量。 Λ ^然而，當一端經形成為較薄 暑ί不月&藉由壓铸方法來執行汽缸本體之鑄造的擔 f。此係由於一端在麼铸時因炫融金屬之麼力而變形的擔 其類藉由其他铸造方法（例如，低料造方法或 其類似者）來製造汽紅套筒時，引起製造成本之增加。 為了消除此問題，已才盖田Φ 士 以提供用於引擎之二=8本發明具有其用 、“ 本體的目，票，汽缸本體能夠縮短為 /飞本體之與汽缸頭部配合之表面的機械加工所需要之時 間’以在採用藉由壓鑄方法來使得製造成為可能之構造的 同時達成成本降低。 [解決問題之手段] 為了達到目標，根據本發明的製造用於引擎之汽缸本體 之方法包含：壓鑄步驟，其中藉由铸造塗佈而將汽缸套筒 提供於汽缸本體中；及切割步驟，其中將與汽缸頭部配合 表面形成於α缸本體之—端上’使得曝露汽缸套筒之端 表面’且方法係、藉由以下步驟來進行：形成汽缸套筒之一 端以使得—端與汽㈣筒之剩餘部分相比外徑較小；在鑄 造金屬模具之柱狀部分經裝配至汽缸套筒内的狀態下鑄造 汽缸本體；及在㈣步驟中形成汽缸套筒之—端之端表面 以使得端表面平坦，以便構成配合表面之一部分。 在根據請求項2中所描述之本發明的用於引擎之汽缸本 131790.doc ^^240 體中，汽缸套筒藉由铸造塗佈被提供，汽缸套筒之一端構 成與汽紅頭部配合之表面的—部分，汽缸本趙藉由壓鑄方 法而在鑄造金屬模具之柱狀部分經裝配至汽缸套筒内的狀 :下被鑄，汽缸套筒之一端經形成以與汽缸套筒之剩餘 邛刀相比外徑較小’及一端之端表面藉由在鑄造之後的切 割工作被形成且包含構成配合表面之-部分的平坦表面。 根據清求項3 t所描述之本發明的用於引擎之汽缸本體 包含如凊求項2之用於引擎之汽缸本體，且藉由鑄造金屬 模-被模製’鑄造金屬模具之閘形成於與汽缸套筒之一端 相對的位置中。 根據凊求項4令所描4之本發明的用於引擎之汽缸本體 向：請求項2或3之用於引擎之汽缸本體添加以下特徵：其 在汽缸套筒之軸向兩端皆由铸造金屬模具所包夾的狀態下 被轉造。 根據明求項5中所描述之本發明的用於引擎之汽缸本體 向如清求項2至4中任一項之用於引擎之汽缸本體增加以下 特徵：於該汽缸套筒之外周±,形成有複數個在該汽缸套 筒之轴向方向上間隔開而延著圓周方向延伸之隆脊。 [本發明之效果] 在如請求項1之製造用於引擎之汽缸本體之方法及如請 求項2之用於引擎之汽紅本體的情况下》气缸套筒之一端 由备壓鑄夂缸本體時裝配至汽缸套筒内的鑄造金屬模具之 柱狀°卩刀自内部支撐，使得雖然一端經形成為相對較薄， 但有可能執行壓鑄，同時防止一端變形。 I3l790.doc 1339240 因此，有可能形成汽缸套筒之一端，其曝露至汽缸本體 之與汽缸頭部配合之表面，以使得一端較薄，因此致能為 配合表面之機械加工所需要的時間。因此，有可能提供製 造成本進一步降低之汽缸本體。 在如請求項3之本發明的情況下，汽缸套筒之與閘相對 的一端經形成為厚度較小，使得在不鄰近於閘而形成汽缸 本體之配合表面以使得配合表面較大的情況下，閘可經形 成以使得適當地寬，且可使得熔融金屬易於自閘流入至空 穴内。 此由於可使炫融金屬以高速流入至空穴内，所以有 可月匕铸造甚至具有λ量散熱片《&缸本豸，以冑使得汽缸 本體之品質高。 在如凊求項4之本發明的情況下，有可能在汽缸套筒由 鎮造金屬模具支推以便不移動之狀態下執行輯。因此， ^套筒之位置在每次缚造時不改變，且使得為對缸套筒 ^作所而要之量在每次鎮造時恆定，使得有可能使得 為對配合表面進行卫作所需要之時間始終最短。 在如印求項5之本發明的情況下，汽缸套筒之隆脊與汽 '本體之中心部分喷合’汽缸本體經鑄造以便包圍汽缸套 筒使传有可能防止在鱗造汽缸本體之後汽缸套筒自汽虹 本體内部脫落。因&，有可能提供汽缸本體，汽缸套筒牢 固地提供於汽缸本體上。 因此’根據本發明’汽缸套筒與汽缸本體之中心部分相 互接觸之區域的面積增加，⑽而使得易於將汽缸套筒之執 I31790.doc 1339240 轉移至中心部分，使得有可能提供冷卻本領較高之汽缸本 體。 【實施方式】 以下將參看圖1至圖3來詳細地描述藉由根據本發明的製 造用於引擎之汽缸本體之方法所製造的汽缸本體之實施 例0 圖1為展示使用根據本發明之汽缸本體的引擎之一部分 之截面圖’圖2為展示用於根據本發明之汽缸本體之鑄造HU:: shortened to the surface of the cylinder with the head of the cylinder and the head of the steam head. (4), the Μ sleeve may be formed so that the __ end on the side of the cylinder sleeve surface is thinner than the remaining part. In order to reduce the amount of relatively hard cylinder sleeves being cut. Λ ^ However, when one end is formed into a thinner heat, the casting of the cylinder body is performed by a die casting method. This is caused by the fact that one end is deformed by the force of the molten metal at the time of casting, and the manufacturing cost is caused by other casting methods (for example, a low-material manufacturing method or the like). increase. In order to eliminate this problem, it has only been provided by the GT to provide the engine for the second = 8 of the invention has its use, "the body of the object, the ticket, the cylinder body can be shortened to / the surface of the flying body with the cylinder head The time required for machining 'to achieve cost reduction while adopting a structure that makes manufacturing possible by a die casting method. [Means for Solving the Problem] In order to attain the object, a method of manufacturing a cylinder body for an engine according to the present invention The method includes: a die casting step in which a cylinder sleeve is provided in a cylinder body by casting coating; and a cutting step in which a mating surface with the cylinder head is formed on an end of the α cylinder body such that the cylinder sleeve is exposed The end surface 'and the method is performed by forming one end of the cylinder sleeve such that the outer end is smaller than the remainder of the steam (four) cylinder; the cylindrical portion of the casting metal mold is assembled to the cylinder Casting the cylinder body in a state inside the sleeve; and forming an end surface of the end of the cylinder sleeve in the step (4) to make the end surface flat to form a fitting table In a cylinder of the engine of the present invention described in claim 2, the cylinder sleeve is provided by casting coating, and one end of the cylinder sleeve is formed with a steam red head. The part of the surface of the mating part, the cylinder of the cylinder is assembled by the die casting method in the cylindrical portion of the casting metal mold into the cylinder sleeve: the lower part is cast, and one end of the cylinder sleeve is formed with the cylinder sleeve The remaining boring tool has a smaller outer diameter than the end surface of one end and is formed by a cutting operation after casting and includes a flat surface constituting a portion of the mating surface. The invention according to the invention described in claim 3 t The cylinder body for the engine includes a cylinder body for the engine as claimed in claim 2, and is formed in a position opposite to one end of the cylinder sleeve by a cast metal mold-molded 'cast metal mold'. The invention relates to the cylinder body for an engine of the present invention described in claim 4: the cylinder body for the engine of claim 2 or 3 is characterized in that it is cast metal at both axial ends of the cylinder sleeve Mold package According to the cylinder body for an engine of the present invention described in the above item 5, the following features are added to the cylinder body for the engine according to any one of the items 2 to 4: The outer circumference of the cylinder sleeve is formed with a plurality of ridges which are spaced apart in the axial direction of the cylinder sleeve and extend in the circumferential direction. [Effects of the Invention] The manufacture of the engine is as claimed in claim 1. The method of the cylinder body and the case of the steam red body for the engine according to claim 2, wherein one end of the cylinder sleeve is assembled into the cylindrical mold of the casting metal mold in the cylinder sleeve when the cylinder body is prepared and pressed from the inside The support is such that although one end is formed to be relatively thin, it is possible to perform die casting while preventing deformation at one end. I3l790.doc 1339240 Therefore, it is possible to form one end of the cylinder sleeve which is exposed to the cylinder head and the cylinder head. The surface is such that one end is thinner, thus enabling the time required for the machining of the mating surface. Therefore, it is possible to provide a cylinder body which is further reduced. In the case of the invention as claimed in claim 3, the end of the cylinder sleeve opposite to the gate is formed to have a small thickness such that the mating surface of the cylinder body is formed adjacent to the gate so that the mating surface is large The gate can be formed to be suitably wide and can facilitate the flow of molten metal from the gate into the cavity. Since the molten metal can flow into the cavity at a high speed, there is a monthly casting or even a λ amount of heat sink, so that the quality of the cylinder body is high. In the case of the invention as claimed in claim 4, it is possible to execute the series in a state where the cylinder sleeve is pushed by the tempered metal mold so as not to move. Therefore, the position of the sleeve is not changed every time it is tied, and the amount required for the cylinder sleeve is constant at each tempering, making it possible to make a work for the mating surface. The time required is always the shortest. In the case of the invention as claimed in claim 5, the ridge of the cylinder sleeve is sprayed with the central portion of the body of the steam. The cylinder body is cast to surround the cylinder sleeve so that it is possible to prevent the cylinder from being formed after the cylinder body is formed. The sleeve is detached from the interior of the body of the steam. Because of &, it is possible to provide a cylinder body that is securely provided to the cylinder body. Therefore, according to the present invention, the area of the area where the cylinder sleeve and the central portion of the cylinder body contact each other is increased, (10) makes it easy to transfer the cylinder sleeve I31790.doc 1339240 to the center portion, making it possible to provide a higher cooling power. The cylinder body. [Embodiment] Embodiment 10 of a cylinder body manufactured by a method of manufacturing a cylinder body for an engine according to the present invention will be described in detail below with reference to FIGS. 1 to 3. FIG. 1 is a view showing the use of a cylinder according to the present invention. A cross-sectional view of a portion of the engine of the body 'Fig. 2 shows a casting for a cylinder body according to the present invention
的鑄造金屬模具之截面圖，且圖3為展示在鑄造之後的汽 缸本體之透視圖。 在此等圖式中’參考數字1表示引擎，其使A cross-sectional view of the cast metal mold, and Figure 3 is a perspective view showing the cylinder body after casting. In these figures, 'reference numeral 1 denotes an engine which makes
例之 >飞缸本體2。引擎1為氣冷型四衝程單汽缸引擎。引擎 1包括：曲軸箱4，其可旋轉地支撐曲轴3,汽缸本體2安裝 至曲軸箱4 ;及汽缸頭部5，其安裝至汽缸本體2之尖端。 又，引擎1在汽缸之軸線C被大體上定向至載具本體之前部 的狀態下安裝於機器腳踏車之本體框架（未圖示）上。 藉由壓鑄方法而將汽缸本體2模製為預定形狀，在壓鑄 方法中’將銘合金用作材料，且使用稍後描述之鑄造金屬 模具6(見圖2)。如圖1所示，藉由铸造塗佈而將活塞7所插 入及裝配至之汽缸套筒丨丨提供於汽缸本體2上。 又，汽缸本體2與大量散熱片12(如圖…示）且與鍵腔室 13(如圖3所示）整體地形成。鏈腔室13以在汽缸之轴向方向 上延伸穿過汽缸本體2之側的方式而形成。 另外，用於汽缸本體2之安裝的安裝心提供於汽虹本 13I790.doc 11339240 體2之一端處，如圖1及圖3所示。安裝座14經形成以在最 靠近於汽缸頭部5之位置中自散熱片12以台階而朝向汽缸 頭部5突出’且同與汽缸頭部$配合之配合表面丨5 一起形 成。汽紅套筒Π之端曝露至配合表面15。 汽缸套筒11係在其一端1 la曝露至汽缸本體2之配合表面 1 5的狀態下由待經圓柱形地成形且定位於汽缸本體2中之 鎿鐵形成。Example > Flying cylinder body 2. The engine 1 is an air-cooled four-stroke single-cylinder engine. The engine 1 includes a crankcase 4 that rotatably supports a crankshaft 3 to which a cylinder body 2 is mounted, and a cylinder head 5 that is mounted to a tip end of the cylinder body 2. Further, the engine 1 is attached to a body frame (not shown) of the bicycle in a state where the axis C of the cylinder is substantially oriented to the front portion of the vehicle body. The cylinder body 2 is molded into a predetermined shape by a die casting method in which an alloy is used as a material, and a casting metal mold 6 (see Fig. 2) described later is used. As shown in Fig. 1, a cylinder sleeve 插 into which the piston 7 is inserted and assembled by casting coating is provided on the cylinder body 2. Further, the cylinder body 2 is integrally formed with a plurality of fins 12 (shown as shown) and with the key chamber 13 (shown in Fig. 3). The chain chamber 13 is formed in such a manner as to extend through the side of the cylinder body 2 in the axial direction of the cylinder. Further, the mounting core for the mounting of the cylinder body 2 is provided at one end of the body 2 of the steam rainbow 13I790.doc 11339240, as shown in Figs. 1 and 3. The mount 14 is formed to protrude from the fin 12 toward the cylinder head 5 with a step in a position closest to the cylinder head 5 and is formed together with the mating surface 丨 5 mated with the cylinder head $. The end of the steam red sleeve is exposed to the mating surface 15. The cylinder sleeve 11 is formed of ferroniobium to be cylindrically shaped and positioned in the cylinder body 2 in a state where one end 1 la thereof is exposed to the mating surface 15 of the cylinder body 2.
複數個圓周延伸之隆脊16形成於汽缸套筒丨丨之外部周邊 上以在汽缸套筒11之轴向方向（汽缸之軸向方向）上間隔。 此等隆脊16經形成以便不使得在汽缸套筒}1之圓周方向上 離散且經嵌入於汽缸本體2之中心部分2a中。 與汽缸套筒11之其他部分（定位於隆脊16之㈤的主要外 部周邊表面）的外徑的㈣，汽缸套筒"之—端iu的外經 D1(見圖2)經形成為較小。㈣，與汽紅套筒丨丨之其他部 分相比，一端11a經形成為厚度較小。A plurality of circumferentially extending ridges 16 are formed on the outer periphery of the cylinder sleeve to be spaced in the axial direction of the cylinder sleeve 11 (the axial direction of the cylinder). These ridges 16 are formed so as not to be discrete in the circumferential direction of the cylinder sleeve}1 and embedded in the central portion 2a of the cylinder body 2. With the outer diameter of the other part of the cylinder sleeve 11 (positioned on the main outer peripheral surface of the (five) of the ridge 16), the outer diameter D1 (see Fig. 2) of the cylinder sleeve " small. (4) The one end 11a is formed to have a smaller thickness than the other portions of the steam red sleeve.
藉由在汽缸本體2之鑄造之後的機械加工而使得一端Ua 之端表面平坦，以便構成與汽缸頭部5配合之配合表面。 之一部分。藉由使用（例如）銑刀同時切割汽缸套⑼ 表面及汽缸本體2之端表面來執行機械加工。藉由使兩個 端表面經受機械加工，與汽紅頭部5配合之配合表面 成於汽缸本體2上。 ^ taj ι τη 其與活塞7之間的燃燒腔室8; /、界疋 -端打開至凹㈣。又，_23,其 乂供於汽缸頭部5上的為進氣間 13I790.doc ，12· 1339240 24、排氣閥25、用於兩個閥24、25之驅動的榣臂型間操作 裝置26或其類似者。藉由定時鏈(未圖示)而將閥操作裝置 26之凸輪軸27連接至曲轴3。將定時鏈延伸穿過汽缸本體2 之鏈腔室13以連接於凸輪軸27與曲軸3之間。 如圖2所示，藉由使用鑄造金屬模具6而藉由壓鑄方法來 鑄造汽缸本體2 ^鑄造金屬模具6包含：靜止金屬模具3丨， 其以自汽缸頭部5側覆蓋汽缸本體2之方式而形成；移動金 屬模具32’其能夠在朝向及遠離靜止金屬模具η之方向 (圖2之垂直方向）上移動；孔銷33，其經形成以使得為柱狀 以裝配至汽缸套筒1丨内且安裝至移動金屬模具32 :及四個 滑動金屬模具34，其以包圍孔銷33之周邊的方式而定位於 靜止金屬模具31與移動金屬模具32之間。孔銷33構成本發 明中所提及的鑄造金屬模具之柱狀部分。 孔銷33之尖端（圖2之上部端）經形成為紡錘形以隨著其 朝向尖端而逐漸地變細’且面向靜止金屬模具3 1之流槽3 5 的内部（在圖2所示之閉合狀態下）》流槽35之上游端連接至 逢口（未圖示）。又，汽缸套筒Π之朝向曲軸腔室之端表面 所鄰接的台階33a形成於孔銷33之基底端處。 汽缸套筒11裝入至金屬模具6之空穴36(見圖2)内（在固定 有孔銷33且由孔銷33之台階33a承載的狀態下）。用於鏈腔 室13之模製的核心（未圖示）提供於空穴36内鄰近於汽缸套 筒11之位置中。 突出部分37(其將汽缸套筒11***於其與台階33a之間）提 供於靜止金屬模具31之形成有流槽35之下游端之彼端上的 13l790.doc -13· 1339240 四個位置中。突出部分37經提供以在汽缸套筒丨丨之圓周方 向上在四個位置中以相等間隔被間隔。在圖2所示之閉合 狀態下’突出部分37鄰接汽缸套筒11之一端iia的端表面 以將其推向另"端。The end surface of the one end Ua is flattened by machining after casting of the cylinder body 2 to constitute a mating surface that cooperates with the cylinder head 5. Part of it. Machining is performed by simultaneously cutting the surface of the cylinder liner (9) and the end surface of the cylinder body 2 using, for example, a milling cutter. By subjecting the two end surfaces to machining, the mating surface mated with the vapor red head 5 is formed on the cylinder body 2. ^ taj ι τη The combustion chamber 8 between it and the piston 7; /, the boundary - end opens to the concave (four). Further, _23, which is supplied to the cylinder head 5, is an intake chamber 13I790.doc, 12·1339240 24, an exhaust valve 25, and an arm type operation device 26 for driving the two valves 24, 25. Or similar. The camshaft 27 of the valve operating device 26 is coupled to the crankshaft 3 by a timing chain (not shown). A timing chain is extended through the chain chamber 13 of the cylinder body 2 to be coupled between the camshaft 27 and the crankshaft 3. As shown in FIG. 2, the cylinder body 2 is cast by a die casting method by using a casting metal mold 6. The casting metal mold 6 includes a stationary metal mold 3, which covers the cylinder body 2 from the cylinder head 5 side. And formed; moving metal mold 32' can move in a direction toward and away from the stationary metal mold η (the vertical direction of FIG. 2); a hole pin 33 formed to be cylindrical to be assembled to the cylinder sleeve 1丨It is mounted to the moving metal mold 32 and four sliding metal molds 34 which are positioned between the stationary metal mold 31 and the moving metal mold 32 so as to surround the periphery of the hole pin 33. The hole pin 33 constitutes a columnar portion of the cast metal mold mentioned in the present invention. The tip end of the hole pin 33 (the upper end of Fig. 2) is formed into a spindle shape to be tapered as it faces the tip end' and faces the inside of the flow groove 35 of the stationary metal mold 3 1 (closed as shown in Fig. 2) In the state, the upstream end of the flow channel 35 is connected to the door (not shown). Further, a step 33a adjacent to the end surface of the cylinder sleeve 朝向 toward the crank chamber is formed at the base end of the hole pin 33. The cylinder sleeve 11 is fitted into the cavity 36 (see Fig. 2) of the metal mold 6 (in a state where the hole pin 33 is fixed and carried by the step 33a of the hole pin 33). A core (not shown) for molding the chain chamber 13 is provided in the cavity 36 in a position adjacent to the cylinder sleeve 11. The protruding portion 37 (which inserts the cylinder sleeve 11 between the step 33a) is provided in four positions of 13l790.doc -13·1339240 on the other end of the stationary metal mold 31 on which the downstream end of the flow groove 35 is formed. . The protruding portion 37 is provided to be spaced at equal intervals in four positions in the circumferential direction of the cylinder sleeve 丨丨. In the closed state shown in Fig. 2, the projecting portion 37 abuts the end surface of one end iia of the cylinder sleeve 11 to push it toward the other end.
流槽35之下游端連接至形成於與汽缸套筒〗丨之一端na 相對之位置中的閘38。閘38形成於靜止金屬模具3丨與孔銷 33之間及四個位置中之突出部分37中的兩個鄰近突出部分 3 7之間。亦即，如圖3所示，閘3 8經形成以便使流槽3 5中 之熔融金屬自汽缸套筒11周圍之四個位置被引入至空穴36 内。 圖3展示由熔融金屬形成之模製體41，熔融金屬在中途 不被切割且被取出鑄造金屬模具6之狀態下在自流槽35至 空穴36之範圍内的整個區域中凝固。由於形成於鑄造金屬 模具6中之流槽35及空六36的形狀對應於模製體41，所以The downstream end of the flow channel 35 is connected to a gate 38 formed in a position opposite to one end na of the cylinder sleeve. The gate 38 is formed between the stationary metal mold 3 and the hole pin 33 and between the two adjacent protruding portions 37 of the four positions. That is, as shown in Fig. 3, the gate 38 is formed so that the molten metal in the launder 35 is introduced into the cavity 36 from four positions around the cylinder sleeve 11. Fig. 3 shows a molded body 41 formed of molten metal which is solidified in the entire region in the range from the laundering groove 35 to the cavity 36 in a state where the molten metal is not cut in the middle and taken out of the casting metal mold 6. Since the shapes of the flow grooves 35 and the voids 36 formed in the cast metal mold 6 correspond to the molded body 41,
針對流槽、閘及空穴之參考數字35、38、36為針對圖3之 模製體41的表示。 四個滑動金屬模具34用以模製汽缸本體2之周邊壁且與 凹座42—起形成，凹座42用q莫製散熱片12，如圖二所 示。滑動金属模具34支撐於移動金屬模具32上，以便能夠 在汽缸套筒11之徑向方向上移動。 隨後’將給出對藉由使用鑄造金屬模具6來製造汽缸本 體2之方法的解釋。 首先’在閉合縳造金屬模具6之前，將汽缸套筒n裝配 至孔銷33内且由孔銷33之台階33a承載。接著，如圖冰示 131790.doc -14 - 1339240 來閉合鑄造金屬模具6。歸因於閉合，將汽缸套筒11*** 於台階33a與靜止金屬模具31之突出部分37之間。 在以此方式來執行閉合之後，根據需要來減小空六36中 之壓力，且經由閘38而將熔融金屬自流槽35供應至空六36 内。當熔融金屬自閘38流入至空六36内時，藉由熔融金屬 之壓力而將汽缸套筒11之一端11 a徑向地向内推動。Reference numerals 35, 38, 36 for the runners, gates, and cavities are representations of the molded body 41 for Fig. 3. Four sliding metal molds 34 are used to mold the peripheral wall of the cylinder body 2 and are formed together with the recess 42. The recess 42 is made of a heat sink 12, as shown in Fig. 2. The slide metal mold 34 is supported on the moving metal mold 32 so as to be movable in the radial direction of the cylinder sleeve 11. Subsequently, an explanation will be given of a method of manufacturing the cylinder body 2 by using the cast metal mold 6. First, the cylinder sleeve n is fitted into the hole pin 33 and carried by the step 33a of the hole pin 33 before the metal mold 6 is closed. Next, as shown in the figure, 131790.doc -14 - 1339240 is closed to close the casting metal mold 6. Due to the closing, the cylinder sleeve 11 is inserted between the step 33a and the protruding portion 37 of the stationary metal mold 31. After the closing is performed in this manner, the pressure in the void 36 is reduced as needed, and the molten metal is supplied from the launder 35 into the void 36 via the gate 38. When the molten metal flows from the gate 38 into the void 36, one end 11a of the cylinder sleeve 11 is pushed radially inward by the pressure of the molten metal.
然而，由於孔銷33經裝配於一端1 1 a内部，所以當如上 文所描述藉由熔融金屬之壓力來推動時，一端lla由孔銷 33自内部承載，且因此不因壓力而變形。 在熔融金屬凝固之後，自澆口切割流槽35朝向澆口之 端’且使移動金屬模具32、孔銷33及四個滑動金屬模具34 與靜止金屬模具31分離。接著，將滑動金屬模具34移動遠 離孔銷33 ’且自移動金屬模具32及孔銷33移除模製體4 1。However, since the hole pin 33 is fitted inside the one end 11a, when pushed by the pressure of the molten metal as described above, the one end 11a is carried by the hole pin 33 from the inside, and thus is not deformed by the pressure. After the molten metal solidifies, the runner 35 is cut from the gate toward the end of the gate and the moving metal mold 32, the hole pin 33, and the four sliding metal molds 34 are separated from the stationary metal mold 31. Next, the slide metal mold 34 is moved away from the hole pin 33' and the molded body 41 is removed from the moving metal mold 32 and the hole pin 33.
如圖3所示，熔融金屬在流槽35中凝固而形成之流槽内 模製體41 a及熔融金屬在閘38中凝固而形成之閘内模製體 4 1 b與產品部分41 c整體地模製以形成模製體4 j。 為了自模製體41獲得汽缸本體2(產品部分41c)，切割安 裝座14及閘3 8之邊界部分，且藉由切割工作而將與汽缸頭 部5配合之配合表面15形成於安裝座“之經切割端表面 由於汽缸套筒1 1之-端1 la曝露至經切割端表面，所以 =對經切割端表面進行工作時，同時切割汽虹套筒n之一 Λ 根據實允例的汽缸套筒1 1之-端n a經形成為外徑 比剩餘部分小且經形成為厚度較小。因此，雖然汽㈣筒 131790.doc -15- 1339240 η係由硬度相對較高之鑄鐵形成，但可在相對較短之時間 内執行經切割端表面之切割工作。 以此方式，包含平坦表面之配合表面15形成於安裝座μ 上，藉以汽缸本體2之製造過程終止。 因此，在根據實施例之汽缸本體2及其製造方法的情況 下，汽缸套筒U之一端lla由在壓鑄時裝配至汽缸套筒U 内之孔銷33自内部支撐，使得雖然一端丨〗a經形成為相對 較薄’但有可能執行壓鑄，同時防止一端變形。 因此，可藉由形成汽缸套筒丨丨之一端lla來縮短為配合 表面15之機械加工所需要的時間，一端Ua曝露至汽缸本 體2與汽缸頭部5之間的配合表面15，以使得一端較 薄。 根據實施例，由於汽缸套筒丨丨之與鑄造金屬模具6之閘 3 8相對的一端11 a經形成為較薄，所以可在不將安裝座μ 形成為較大之情況下形成閘3 8以使得適當地寬，且可使得 熔融金屬易於自閘38流入至空穴36内。 因此，由於可使熔融金屬以高速流入至空穴36内，所以 有可能鑄造甚至具有大量散熱片12之汽缸本體2，以便使 得汽缸本體2之品質高。 根據實施例，有可能在汽缸套筒丨丨由靜止金屬模具3丨及 孔銷33支撐以便不移動之狀態下執行壓鑄。因此，汽缸套 筒1 1之位置在每次鑄造時不改變，且使得為對汽缸套筒i 1 進行工作所需要之量在每次铸造時恨定，使得有可能使得 為配合表面1 5之工作所需要的時間始終最短。 13I790.doc • 16 · 1339240 根據實施例，汽缸套筒1 i之隆脊16與汽缸本體2之中心 部分2a嚙合，汽缸本體2經鑄造以便包圍汽缸套筒丨丨，使 得有可能防止在鑄造汽缸本體2之後汽缸套筒丨丨自汽缸本 體2内部脫落。 又，根據實施例，汽缸套筒丨丨與汽缸本體2之中心部分 2a相互接觸之區域的面積增加，從而使得易於將汽缸套筒 11之熱轉移至中心部分2a。因此，有可能在冷卻本領方面 改良引擎1。 此外，雖然已關於本發明適用於氣冷型引擎之汽缸本體 的實例而描述實施例，但本發明可適用於水冷型引擎之汽 缸本體及多汽缸引擎之汽缸本體。 【圖式簡單說明】 [圖1]圖1為展示使用根據本發明之汽缸本體的引擎之— 部分之戴面圖。 [圖2]圖2為展示用於根據本發明之汽紅本體之鎮造的鑄 造金屬模具之截面圖。 [圖3]圖3為展示在鑄造之後的汽缸本體之透視圖。 【主要元件符號說明】 2 汽缸本體 5 汽缸頭部 6 鱗造金屬模具 11 汽缸套筒 11 a 一端 14 安裝座 131790.doc •VI· 1339240 15 31 32 33 34 35 38 • 配合表面 靜止金屬模具 移動金屬模具 孔銷 滑動金屬模具 流槽 閘 131790.doc -18-As shown in Fig. 3, the in-slot molded body 41a formed by solidification of the molten metal in the launder 35 and the in-sector molded body 4 1 b formed by solidification of the molten metal in the gate 38 are integrated with the product portion 41 c. Molded to form a molded body 4 j. In order to obtain the cylinder body 2 (product portion 41c) from the molded body 41, the boundary portion between the mount 14 and the gate 38 is cut, and the mating surface 15 that cooperates with the cylinder head 5 is formed on the mount by cutting work. The cut end surface is exposed to the cut end surface due to the end of the cylinder sleeve 1 1 , so when working on the cut end surface, one of the steam siphon sleeves is simultaneously cut Λ according to the actual example of the cylinder The end na of the sleeve 1 1 is formed to have an outer diameter smaller than the remaining portion and formed to have a small thickness. Therefore, although the steam (four) cylinder 131790.doc -15-1339400 η is formed of cast iron having a relatively high hardness, The cutting work of the cut end surface can be performed in a relatively short time. In this way, the mating surface 15 including the flat surface is formed on the mount μ, whereby the manufacturing process of the cylinder body 2 is terminated. Therefore, according to the embodiment In the case of the cylinder body 2 and the method of manufacturing the same, the one end 11a of the cylinder sleeve U is internally supported by the hole pin 33 fitted into the cylinder sleeve U at the time of die casting, so that although one end 丨 a is formed to be relatively thin 'But it is possible to Die casting while preventing deformation at one end. Therefore, the time required for machining of the mating surface 15 can be shortened by forming one end 11a of the cylinder sleeve, and one end Ua is exposed between the cylinder body 2 and the cylinder head 5. The surface 15 is fitted so that one end is thin. According to the embodiment, since the end 11 a of the cylinder sleeve 相对 opposite to the gate 38 of the casting metal mold 6 is formed to be thin, the mounting seat μ can be formed without The gate 38 is formed to be larger so as to be appropriately wide, and the molten metal can be easily made to flow from the gate 38 into the cavity 36. Therefore, since the molten metal can be made to flow into the cavity 36 at a high speed, there is It is possible to cast even the cylinder body 2 having a large number of fins 12 in order to make the quality of the cylinder body 2 high. According to the embodiment, it is possible that the cylinder sleeve is supported by the stationary metal mold 3 and the hole pin 33 so as not to move. Die casting is performed. Therefore, the position of the cylinder sleeve 1 1 does not change at each casting, and the amount required for working on the cylinder sleeve i 1 is hatched at each casting, so that there is The time required to work with the surface 15 is always the shortest. 13I790.doc • 16 · 1339240 According to an embodiment, the ridge 16 of the cylinder sleeve 1 i meshes with the central portion 2a of the cylinder body 2, and the cylinder body 2 is cast In order to surround the cylinder sleeve, it is possible to prevent the cylinder sleeve from falling out of the cylinder body 2 after casting the cylinder body 2. Further, according to the embodiment, the cylinder sleeve 丨丨 and the central portion 2a of the cylinder body 2 are mutually The area of the contact area is increased, thereby making it easy to transfer the heat of the cylinder sleeve 11 to the center portion 2a. Therefore, it is possible to improve the engine 1 in terms of cooling power. Further, although the present invention has been applied to the cylinder of the air-cooled engine. Embodiments are described with respect to an example of a body, but the present invention is applicable to a cylinder body of a water-cooled engine and a cylinder body of a multi-cylinder engine. BRIEF DESCRIPTION OF THE DRAWINGS [Fig. 1] Fig. 1 is a perspective view showing a portion of an engine using a cylinder body according to the present invention. Fig. 2 is a cross-sectional view showing a cast metal mold for use in the aging of a vapor red body according to the present invention. [Fig. 3] Fig. 3 is a perspective view showing a cylinder body after casting. [Main component symbol description] 2 Cylinder body 5 Cylinder head 6 Scale metal mold 11 Cylinder sleeve 11 a One end 14 Mounting seat 131790.doc • VI· 1339240 15 31 32 33 34 35 38 • Moving metal mold with surface static metal mold Mold hole pin sliding metal mold flow channel gate 131790.doc -18-
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007189222A JP2009024616A (en) | 2007-07-20 | 2007-07-20 | Cylinder body of engine and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200918740A TW200918740A (en) | 2009-05-01 |
| TWI339240B true TWI339240B (en) | 2011-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW097120800A TWI339240B (en) | 2007-07-20 | 2008-06-04 | Cylinder body of engine and method of manufacturing the same |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP2018916B1 (en) |
| JP (1) | JP2009024616A (en) |
| CN (1) | CN101349212B (en) |
| AT (1) | ATE492362T1 (en) |
| BR (1) | BRPI0803659B8 (en) |
| DE (1) | DE602008004020D1 (en) |
| ES (1) | ES2356405T3 (en) |
| TW (1) | TWI339240B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI447299B (en) * | 2012-06-08 | 2014-08-01 | Colis Ind Co Ltd | Process for manufacture of water-cooled motorcycle cylinder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861897B (en) * | 2012-09-17 | 2014-11-19 | 江苏徐航科技有限公司 | Device for die casting cylinder liner position of engine cylinder shell |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE760193C (en) * | 1940-02-06 | 1953-06-15 | Bayerische Motoren Werke Ag | Process for the production of bodies composed of steel and light metal |
| JPS5974354A (en) | 1982-10-19 | 1984-04-26 | Yamaha Motor Co Ltd | Casted cylinder for engine |
| JPS60148657A (en) * | 1984-01-11 | 1985-08-05 | Fuji Heavy Ind Ltd | Production of cylinder for two-cycle engine |
| JPH01317679A (en) * | 1987-12-14 | 1989-12-22 | Nippon Piston Ring Co Ltd | Hollow cylindrical body for embedding by casting and production thereof |
| JPH04153549A (en) * | 1990-10-15 | 1992-05-27 | Mazda Motor Corp | Cylinder block and manufacture thereof |
| US5320158A (en) * | 1993-01-15 | 1994-06-14 | Ford Motor Company | Method for manufacturing engine block having recessed cylinder bore liners |
| DE10153721C5 (en) | 2001-10-31 | 2011-04-28 | Daimler Ag | Casting tool for producing a cylinder crankcase |
| JP4429025B2 (en) * | 2004-01-09 | 2010-03-10 | トヨタ自動車株式会社 | Cylinder liner for casting |
-
2007
- 2007-07-20 JP JP2007189222A patent/JP2009024616A/en active Pending
-
2008
- 2008-06-04 TW TW097120800A patent/TWI339240B/en active
- 2008-07-18 EP EP08252467A patent/EP2018916B1/en active Active
- 2008-07-18 ES ES08252467T patent/ES2356405T3/en active Active
- 2008-07-18 DE DE602008004020T patent/DE602008004020D1/en active Active
- 2008-07-18 AT AT08252467T patent/ATE492362T1/en not_active IP Right Cessation
- 2008-07-21 BR BRPI0803659A patent/BRPI0803659B8/en active IP Right Grant
- 2008-07-21 CN CN2008101307952A patent/CN101349212B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI447299B (en) * | 2012-06-08 | 2014-08-01 | Colis Ind Co Ltd | Process for manufacture of water-cooled motorcycle cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0803659B1 (en) | 2019-06-18 |
| TW200918740A (en) | 2009-05-01 |
| EP2018916B1 (en) | 2010-12-22 |
| CN101349212A (en) | 2009-01-21 |
| DE602008004020D1 (en) | 2011-02-03 |
| BRPI0803659B8 (en) | 2021-05-25 |
| CN101349212B (en) | 2011-05-18 |
| EP2018916A1 (en) | 2009-01-28 |
| JP2009024616A (en) | 2009-02-05 |
| BRPI0803659A2 (en) | 2010-06-15 |
| ES2356405T3 (en) | 2011-04-07 |
| ATE492362T1 (en) | 2011-01-15 |
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