KR0134455Y1 - Structure for improving the endurance of main bearing cap of a car - Google Patents
Structure for improving the endurance of main bearing cap of a car Download PDFInfo
- Publication number
- KR0134455Y1 KR0134455Y1 KR2019960002734U KR19960002734U KR0134455Y1 KR 0134455 Y1 KR0134455 Y1 KR 0134455Y1 KR 2019960002734 U KR2019960002734 U KR 2019960002734U KR 19960002734 U KR19960002734 U KR 19960002734U KR 0134455 Y1 KR0134455 Y1 KR 0134455Y1
- Authority
- KR
- South Korea
- Prior art keywords
- main bearing
- bearing cap
- improving
- bolt
- crankshaft
- Prior art date
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
본 고안은 자동차용 메인베어링의 내구성 향상구조에 관한 것으로, 메인베어링캡(1)의 양측면부를 테이퍼(3) 형상으로 변경, 살두께를 크게하여 볼트의 축력을 균일하게 분산시킴으로써, 메인베어링캡(1)의 압축변형량이 최소화됨과 더불어 인장응력이 저감되어 메인베어링캡(1)의 내구성이 향상되도록 한 것이다.The present invention relates to a structure for improving the durability of the main bearing for automobiles, by changing both side portions of the main bearing cap (1) to the taper (3) shape, by increasing the thickness of the body to uniformly distribute the axial force of the bolt, the main bearing cap ( Compression strain of 1) is minimized and tensile stress is reduced to improve durability of the main bearing cap (1).
Description
제1도는 본 고안에 따른 메인베어링캡을 나타내는 개략적인 단면도.1 is a schematic cross-sectional view showing a main bearing cap according to the present invention.
제2도 (a)는 종래 구조로서, 볼트가 메인베어링캡의 체결홈에 끼워진 부분상태도.Figure 2 (a) is a conventional structure, a partial state in which the bolt is fitted into the fastening groove of the main bearing cap.
(b)는 종래구조로서, 볼트의 축력에 의한 인장응력 및 압축응력을 나타내는 상태도.(b) is a state structure which shows the tensile stress and compressive stress by the axial force of a bolt as a conventional structure.
제3도는 종래 구조로서, 크랭크 샤프트에 있어서 메인베어링과 메인베어링캡의 분해결합 사시도이다.Figure 3 is a conventional structure, a disassembled perspective view of the main bearing and the main bearing cap in the crankshaft.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 메인베어링캡 2 : 체결홈1: Main bearing cap 2: Tightening groove
3 : 테이퍼3: taper
[산업상의 이용분야][Industrial use]
본 고안은 분할형 메인베어링을 크랭크 샤프트에 결합시켜 지지하는 자동차용 메인베어링캡의 내구성 향상구조애 관한 것으로, 특히 메인베어링캡의 양측면부의 형상을 변경, 살두께를 크게하여 응력을 균일하게 분산시킴으로써, 압축변형량이 최소화됨과 더불어 인장응력이 저감되어 메인베어링캡의 내구성이 향상될 수 있도록 된 자동차용 메인베어링캡의 내구성 향상구조에 관한 것이다.The present invention relates to the durability improvement structure of the main bearing cap for automobiles that support the split type main bearing to the crankshaft, and in particular, by changing the shape of both sides of the main bearing cap and increasing the thickness to distribute the stress uniformly. In addition, the present invention relates to a durability improvement structure of a main bearing cap for an automobile, in which a compressive deformation is minimized and tensile stress is reduced to improve durability of the main bearing cap.
[종래의 기술 및 그문제점]Conventional Technology and Its Problems
일반적으로 제3도에 도시된 바와 같이, 크랭크 샤프트(11)의 저어널(12) 부분이나 크랭크핀 부분에 사용하는 메인베어링(13)은 분할형(Split Type)으로, 이 메인베어링(13)은 표면에 적당한 유막을 만들어 폭발행정에서 회전부분이 받는 큰하중이나 충격을 흡수하고, 또 크랭크 샤프트(11)의 회전으로 생기는고체마찰을 액체마찰로 바꾸어 눌어 붙는 것을 방지하여, 접촉면의 마모나 출력의 손실을 적게 하는 역할을 하는 바, 이 메인베어링(13)을 크랭크 샤프트(11)에 볼트(14)를 매개로 하여 결합시켜 지지하는 것이 메인베어링캡(15)으로, 이 메인베어링캡(15)의 좌 ·우 양측부에는 두 개의 체결홈(16)이 각각 형성되어져 볼트(14)를 매개로 크랭크 샤프트(11)에 취부되되, 제2도의 (A)에 도시된 바와 같이, 상기 체결홈(16)에 볼트(14)가 끼워지면 볼트(14)의 축력이 메인베어링캡(15)에 작용하게 된다.In general, as shown in FIG. 3, the main bearing 13 used for the journal 12 portion or the crank pin portion of the crankshaft 11 is a split type, which is the main bearing 13. Silver film is formed on the surface to absorb the heavy loads and impacts of the rotating part in the explosive stroke, and to prevent solid friction generated by the rotation of the crankshaft 11 from sticking to the liquid friction, thereby preventing wear and output of the contact surface. The main bearing cap 15 is coupled to the main bearing 13 to the crankshaft 11 via a bolt 14 to support the main bearing cap 15. Two fastening grooves 16 are formed at both left and right sides of the crankshaft, respectively, and are mounted to the crankshaft 11 through the bolts 14, as shown in FIG. When the bolt 14 is fitted to the 16, the axial force of the bolt 14 It is applied to the ringkaep 15.
그런데, 상기 메인베어링캡(15)에 있어 체결홈(16)의 좌 ·우측부 살두께가 비대칭 구조로 되어 있어 양측면부의 강성이 차이가 발생하게 되고, 이에 따라 제2도의 (B)에 도시된 바와 같이, 메인베어링캡(15)의 양측면 선단부인 저강성 부위에서는 압축변형량이 고강성 부위보다 크게됨과 더불어 고강성부의 굴곡부위에서는 인장응력이 과다하게 발생하여 메인베어링캡(15)의 내구성을 저하시키는 문제점이 있었다.However, in the main bearing cap 15, the thickness of the left and right portions of the fastening groove 16 is asymmetrical, so that the stiffness of both side portions is different, and accordingly, shown in FIG. As described above, the compressive deformation amount is greater than the high stiffness portion at the low rigid portion, which is the front end portion of the main bearing cap 15, and the tensile stress is excessively generated at the bent portion of the high rigid portion, thereby deteriorating the durability of the main bearing cap 15. There was a problem letting.
[고안의 목적][Purpose of designation]
이에 본 고안은 상기와 같은 문제점을 해소하기 위해 안츨된 것으로, 메인베어링캡의 양측면부의 형상을 변경, 살두께를 크게 하여 비대칭 구조를 저하시킴으로써, 볼트의 축력을 메이베어링캡에 균일하게 분산시켜 메인베어링캡의 압축변형량이 최소화됨과 더불어 굴곡부위에서의 인장응력이 저감되어 메인베어링캡의 내구성이 향상 될 수 있도록 된 자동차용 메인베어링캡의 내구성 향상구조를 제공함에 그 목적이 있다.Therefore, the present invention was conceived to solve the above problems, and by changing the shape of both side portions of the main bearing cap and increasing the thickness of the flesh to reduce the asymmetrical structure, the axial force of the bolt is uniformly dispersed in the may bearing cap. The purpose of the present invention is to provide a durability improvement structure of the main bearing cap for automobiles, in which the compressive deformation of the bearing cap is minimized and the tensile stress at the bent portion is reduced, thereby improving the durability of the main bearing cap.
[고안의 구성][Composition of design]
상기와 같은 목적을 달성하기 위한 본 고안은, 메인베어링캡의 양측면 선단부를 크랭크 샤프트와의 접촉면 쪽으로 테이퍼지도록 살두께를 크게 하는 구조로 되어 있다.The present invention for achieving the above object is a structure to increase the thickness of the flesh so as to taper toward the contact surface with the crankshaft both sides of the main bearing cap.
[실시예]EXAMPLE
이하 본 고안을 예시 도면에 의거하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 고안에 따른 메인베어링캡을 나타내는 개략적인 단면도로서, 본 고안은, 체결홈(2)을 기준으로 양측면의 살두께가 비대칭 구조를 이루는 것을 해소하기 위해 메인베어링캡(1)의 양측면 선단부를 크랭크 샤프트와의 접촉면 쪽으로 테이퍼(3)지도록 하여 살두께를 크게 성형하는 구조로 되어 있다.1 is a schematic cross-sectional view showing a main bearing cap according to the present invention, the present invention, both sides of the main bearing cap (1) to eliminate the asymmetric structure of the flesh thickness of both sides with respect to the fastening groove (2) The tip portion is tapered (3) toward the contact surface with the crankshaft to form a large flesh thickness.
따라서, 체결홈(2)을 기준으로 한 양측면의 강성이 비슷하게 되어 비대칭 구조가 저하됨으로써, 볼트에 의한 축력이 메인베어링캡(1)에 균일하게 분산되어 메인베어링캡(1)의 체결홈(2) 주위의 압축변형량이 최소화됨과 더불어 굴곡부위에 대한 인장응력 발생이 저하되게 된다.Therefore, the stiffness of both sides relative to the fastening groove 2 becomes similar, and thus the asymmetric structure is lowered, so that the axial force by the bolt is uniformly distributed in the main bearing cap 1 so that the fastening groove 2 of the main bearing cap 1 In addition to minimizing the amount of compressive strain in the periphery, the tensile stress on the bend is reduced.
[고안의 효과][Effect of design]
이상 설명한 바와 같이 본 고안에 의하면, 메인베어링캡의 양측면 선단부를 두껍게 변경 성형함으로써, 메인베어링캡의 압축변형량을 최소함과 더불어 메인베어링캡의 굴곡부위에 발생하는 인장응력이 저하되어 메인베어링캡의 내구성이 향상되는 효과가 있다.As described above, according to the present invention, by modifying and molding both side tip ends of the main bearing cap thickly, the compressive strain of the main bearing cap is minimized, and the tensile stress generated at the bent portion of the main bearing cap is lowered. Durability is improved.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960002734U KR0134455Y1 (en) | 1996-02-23 | 1996-02-23 | Structure for improving the endurance of main bearing cap of a car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960002734U KR0134455Y1 (en) | 1996-02-23 | 1996-02-23 | Structure for improving the endurance of main bearing cap of a car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970052204U KR970052204U (en) | 1997-09-08 |
| KR0134455Y1 true KR0134455Y1 (en) | 1999-05-01 |
Family
ID=19450771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960002734U KR0134455Y1 (en) | 1996-02-23 | 1996-02-23 | Structure for improving the endurance of main bearing cap of a car |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0134455Y1 (en) |
-
1996
- 1996-02-23 KR KR2019960002734U patent/KR0134455Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR970052204U (en) | 1997-09-08 |
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