KR20020047993A - Connection structure for main shaft of manual transmission - Google Patents

Connection structure for main shaft of manual transmission Download PDF

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Publication number
KR20020047993A
KR20020047993A KR1020000077235A KR20000077235A KR20020047993A KR 20020047993 A KR20020047993 A KR 20020047993A KR 1020000077235 A KR1020000077235 A KR 1020000077235A KR 20000077235 A KR20000077235 A KR 20000077235A KR 20020047993 A KR20020047993 A KR 20020047993A
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KR
South Korea
Prior art keywords
main shaft
nut
manual transmission
flange
fixing nut
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Application number
KR1020000077235A
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Korean (ko)
Inventor
문익주
Original Assignee
이계안
현대자동차주식회사
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Publication date
Application filed by 이계안, 현대자동차주식회사 filed Critical 이계안
Priority to KR1020000077235A priority Critical patent/KR20020047993A/en
Publication of KR20020047993A publication Critical patent/KR20020047993A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • B60K17/24—Arrangements of mountings for shafting
    • 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
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/70—Gearings
    • B60Y2400/71—Manual or semi-automatic, e.g. automated manual transmissions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/70—Gearings
    • B60Y2400/79—Drive shafts, output shafts or propeller shafts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Ocean & Marine Engineering (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

PURPOSE: Structure for combing a main shaft of a manual transmission is provided to prevent a nut fixing a flange from releasing by vibration of a chassis. CONSTITUTION: Structure for combining a main shaft in a manual transmission comprises a bolt unit(52A) formed on an end portion of a main shaft(52); a flange(58) connecting a propeller shaft by being combined to the flange with a spline; a nut(60) preventing the flange from being separated on the main shaft; a release preventing unit(60B) formed on the nut; and a nut unit(60A) combined to the bolt unit. The nut is combined to the bolt unit of the main shaft by combining the flange to a side portion of the main shaft. The release-preventing unit improves frictional force between the bolt unit and the nut unit. Thereby, the structure for combining the main shaft in manual transmission prevents the nut from being released by vibration of a chassis.

Description

수동변속기의 메인 샤프트 체결구조 { CONNECTION STRUCTURE FOR MAIN SHAFT OF MANUAL TRANSMISSION }CONNECTION STRUCTURE FOR MAIN SHAFT OF MANUAL TRANSMISSION}

본 발명은 메인 샤프트와 프로펠러 샤프트가 연결되도록 메인 샤프트에 결합된 플랜지를 고정시키는 고정용 너트가 차체 진동 등으로 인하여 풀리는 것을 방지할 수 있는 수동변속기의 메인 샤프트 체결구조에 관한 것이다.The present invention relates to a main shaft fastening structure of a manual transmission that can prevent the fixing nut for fixing the flange coupled to the main shaft so that the main shaft and the propeller shaft is connected due to the body vibration.

일반적으로 수동변속기는 클러치와 추진축 사이에 설치되어 자동차의 주행 상태 변화에 따른 엔진의 회전력을 증대시키거나 감소시키는 역할을 하며, 자동차를 후진시키기 위한 역전 장치도 갖추고 있다.In general, the manual transmission is installed between the clutch and the propulsion shaft to increase or decrease the rotational force of the engine according to the change in the driving state of the vehicle, and has a reversing device for reversing the vehicle.

도 1은 종래 기술에 따른 수동변속기의 일부가 도시된 단면도이고, 도 2는 종래 기술에 따른 메인 샤프트의 체결구조가 도시된 단면도이다.1 is a cross-sectional view showing a portion of a manual transmission according to the prior art, Figure 2 is a cross-sectional view showing a fastening structure of the main shaft according to the prior art.

도 1 또는 도 2에 도시된 바와 같이 종래 기술의 수동변속기는 엔진의 회전력을 전달받는 드라이브 피니언(미도시)과, 상기 드라이브 피니언과 상시 물림되어 같이 회전하는 카운터 샤프트(10)와, 상기 카운터 샤프트(10)에 수평하게 위치되어 프로펠러 샤프트(미도시)와 연결되는 메인 샤프트(12)와, 상기 카운터 샤프트(10)와 메인 샤프트(12) 사이에 설치되어 각 변속단 및 후진 변속작용을 행하는 동기장치(14)와, 상기 메인 샤프트(12)의 후방측에 스플라인 결합 또는 장착홀에 끼움 방식으로 결합되어 상기 메인 샤프트(12)가 회전될 때 같이 회전되는 스피드 드라이브 기어(16)와, 상기 스피드 드라이브 기어(16)의 위치를 지지함과 아울러 상기 프로펠러 샤프트와의 연결을 위하여 상기 스피드 드라이브 기어(16)측의 메인 샤프트(12) 상에 스플라인 결합된 플랜지(18)와, 상기 플랜지(18)의 유동을 방지하도록 상기 메인 샤프트(12)의 끝부분에 체결된 고정용 너트(20)로 이루어진다.As shown in FIG. 1 or FIG. 2, the conventional manual transmission includes a drive pinion (not shown) that receives rotational force of an engine, a counter shaft 10 which is constantly bitten together with the drive pinion, and the counter shaft. A main shaft 12 horizontally positioned at 10 and connected to the propeller shaft (not shown), and provided between the counter shaft 10 and the main shaft 12 to synchronize each shift stage and the reverse shift operation; A device 14, a speed drive gear 16 coupled to the rear side of the main shaft 12 by spline coupling or a fitting hole to be rotated together when the main shaft 12 is rotated, and the speed Plane splined onto the main shaft 12 on the side of the speed drive gear 16 to support the position of the drive gear 16 and to connect with the propeller shaft. It consists of 18, and a lock nut 20 for fastening the end of the main shaft 12 so as to prevent the flow of the flange 18.

여기서, 상기 메인 샤프트(12)는 끝부분에 수나사부(12A)가 형성되어 상기 고정용 너트(20)의 내주면에 형성된 암나사부(20A)와 체결된다.Here, the main shaft 12 has a male screw portion 12A formed at an end thereof and is fastened to the female screw portion 20A formed on the inner circumferential surface of the fixing nut 20.

그러나, 상기한 바와 같은 종래의 체결구조는 단순히 마찰력에 의해 체결됨으로서 차체에서 발생되는 진동하중이나 변동하중이 작용되면 어느 순간에 이르러풀어지게 쉽게 되는 문제점이 있다.However, the conventional fastening structure as described above has a problem that it is easy to be released at any moment when the vibration load or the fluctuating load generated in the vehicle body is applied by simply being fastened by the frictional force.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 종래의 고정용 너트는 차체에서 발생되는 진동하중이나 변동하중이 작용되면 어느 순간에 이르러 풀어지기 쉽기 때문에, 이와 같은 이완을 방지할 수 있는 수동변속기의 메인 샤프트 체결구조를 제공하는데 그 목적이 있다.The present invention has been made in order to solve the above problems, the conventional fixing nut is easy to be released at any moment when the vibration load or the fluctuating load generated in the vehicle body is applied, it is a manual that can prevent such a relaxation The purpose is to provide a main shaft fastening structure of the transmission.

도 1은 종래 기술에 따른 수동변속기의 일부가 도시된 단면도,1 is a cross-sectional view showing a portion of a manual transmission according to the prior art,

도 2는 종래 기술에 따른 메인 샤프트의 체결구조가 도시된 단면도,Figure 2 is a cross-sectional view showing a fastening structure of the main shaft according to the prior art,

도 3은 본 발명에 따른 메인 샤프트의 체결구조가 도시된 단면도이다.3 is a cross-sectional view showing a fastening structure of the main shaft according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

52 : 메인 샤프트 52A : 수나사부52: main shaft 52A: male thread portion

58 : 플랜지 60 : 고정용 너트58: flange 60: fixing nut

60A : 암나사부 60B : 풀림 방지부60A: Female thread portion 60B: Loosening prevention portion

상기한 과제를 실현하기 위한 본 발명에 따른 수동변속기의 메인 샤프트 체결구조는 메인 샤프트의 한쪽 끝부분에 체결부가 형성되고, 상기 메인 샤프트와 프로펠러 샤프트가 연결되도록 상기 메인 샤프트에 플랜지가 결합되고, 상기 플랜지의 유동을 방지하도록 상기 체결부에 고정용 너트가 결합되고, 상기 고정용 너트가 차체 진동 등의 외부충격에 의해 풀리지 않도록 상기 고정용 너트에 풀림 방지부가 형성된 것을 특징으로 하여 가능하게 된다.The main shaft fastening structure of the manual transmission according to the present invention for realizing the above object is a fastening portion is formed at one end of the main shaft, a flange is coupled to the main shaft so that the main shaft and the propeller shaft is connected, The fixing nut is coupled to the fastening part to prevent the flow of the flange, it is possible to be characterized in that the fixing nut is formed on the fixing nut so that the fixing nut is not released by an external impact such as vehicle body vibration.

이하, 첨부된 도면을 참조하여 본 발명의 실시 예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 3은 본 발명에 따른 메인 샤프트의 체결구조가 도시된 단면도이다.3 is a cross-sectional view showing a fastening structure of the main shaft according to the present invention.

도 3에 도시된 바와 같이 본 발명은 한쪽 끝부분에 수나사부(52A)가 형성된 메인 샤프트(52)와 프로펠러 샤프트(미도시)가 연결되도록 상기 메인 샤프트(52)에플랜지(58)가 스플라인 결합되고, 상기 플랜지(58)가 축방향으로 유동되어 상기 메인 샤프트(52)에서 이탈하지 않도록 상기 수나사부(52A)에 고정용 너트(60)가 체결되고, 상기 고정용 너트(60)가 차체에서 발생되는 진동하중이나 변동하중에 의해 풀어지지 않도록 상기 고정용 너트(60)에 풀림 방지부(60B)가 형성된다.As shown in FIG. 3, the flange 58 is splined to the main shaft 52 so that the main shaft 52 having a male screw portion 52A formed at one end thereof and a propeller shaft (not shown) are connected to each other. The fixing nut 60 is fastened to the male screw portion 52A so that the flange 58 flows in the axial direction so as not to be separated from the main shaft 52, and the fixing nut 60 is The loosening prevention part 60B is formed in the fixing nut 60 so as not to be released by the generated vibration load or the fluctuating load.

상기 고정용 너트(60)는 그 내주면에 상기 수나사부(52A)와 체결이 용이하게 이루어지도록 암나사부(60A)가 형성되고, 상기 암나사부(60A)의 골부에는 상기 풀림 방지부(60B)가 일체로 돌출된다.The fixing nut 60 has a female screw portion 60A formed on the inner circumferential surface thereof so as to be easily engaged with the male screw portion 52A, and the loosening prevention portion 60B is formed at the valley of the female screw portion 60A. It protrudes integrally.

즉, 상기 풀림 방지부(60B)는 상기 수나사부(52A)와 암나사부(60A)가 체결됨과 동시에 상기 수나사부(52A)와 맞물려 뭉개지면서 마찰력을 증가시킨다.That is, the anti-loosening part 60B increases the friction force while being engaged with the male screw part 52A while being engaged with the male screw part 52A and the female screw part 60A.

여기서, 상기 풀림 방지부(60B)는 상기 수나사부(52A)와 암나사부(60A)가 체결될 때 뭉개질 수 있도록 일반적으로 표면경도가 HRC 60 이상인 상기 메인 샤프트(52)보다 적은 표면경도로 이루어진다.Here, the loosening prevention part (60B) is made of a surface hardness less than the main shaft 52 of the surface hardness is generally HRC 60 or more so that when the male screw portion (52A) and the female screw portion (60A) is fastened. .

상기한 바와 같이 이루어진 본 발명에 따른 수동변속기의 메인 샤프트 체결구조의 작동을 다음에서 설명한다.The operation of the main shaft fastening structure of the manual transmission according to the present invention made as described above will be described below.

메인 샤프트(52)의 한쪽에 플랜지(58)를 스플라인 결합한 후, 메인 샤프트(52)의 수나사부(52A)에 고정용 너트(60)를 억지 끼움 방식으로 체결한다.After spline-connecting the flange 58 to one side of the main shaft 52, the fixing nut 60 is fastened to the male screw part 52A of the main shaft 52 by force fitting method.

이때, 풀림 방지부(60B)는 뭉개지면서 수나사부(52A)와 암나사부(60A)의 마찰력을 증가시킴으로, 상기한 바와 같은 상태에서 엔진이 구동되어 자동차가 주행하여도 고정용 너트(60)는 풀리지 않는다.At this time, the anti-loosening part 60B increases the frictional force between the male screw portion 52A and the female screw portion 60A while being crushed. The fixing nut 60 is driven even when the vehicle is driven by driving the engine in the above state. It won't work.

따라서, 상기와 같이 구성되고 작용되는 본 발명에 따른 수동변속기의 메인 샤프트 체결구조는 간단한 구조의 풀림 방지부에 의해 보다 견고한 체결 상태를 유지할 수 있는 이점이 있다.Therefore, the main shaft fastening structure of the manual transmission according to the present invention configured and operated as described above has an advantage of maintaining a more secure fastening state by a loosening prevention portion of a simple structure.

Claims (3)

메인 샤프트의 한쪽 끝부분에 체결부가 형성되고, 상기 메인 샤프트와 프로펠러 샤프트가 연결되도록 상기 메인 샤프트에 플랜지가 결합되고, 상기 플랜지의 유동을 방지하도록 상기 체결부에 고정용 너트가 결합되고, 상기 고정용 너트가 차체 진동 등의 외부충격에 의해 풀리지 않도록 상기 고정용 너트에 풀림 방지부가 형성된 것을 특징으로 하는 수동변속기의 메인 샤프트 체결구조.A fastening part is formed at one end of the main shaft, a flange is coupled to the main shaft to connect the main shaft and the propeller shaft, and a fastening nut is coupled to the fastening part to prevent the flow of the flange. The main shaft fastening structure of the manual transmission, characterized in that the fixing nut is formed in the fixing nut so that the nut is not released by an external shock such as vehicle body vibration. 제 1항에 있어서,The method of claim 1, 상기 풀림 방지부는 상기 고정용 너트의 내주면에 형성된 암나사의 골부에 일체로 돌출되어 상기 체결부와 고정용 너트가 결합될 때 뭉개지도록 형성된 것을 특징으로 하는 수동변속기의 메인 샤프트 체결구조.The anti-loosening portion protrudes integrally with the bone portion of the female screw formed on the inner circumferential surface of the fixing nut to be crushed when the coupling portion and the fixing nut are coupled. 제 1항 또는 제 2항에 있어서,The method according to claim 1 or 2, 상기 풀림 방지부는 상기 체결부와 고정용 너트가 결합될 때 뭉개질 수 있도록 상기 체결부보다 강도가 낮게 형성된 것을 특징으로 하는 수동변속기의 메인 샤프트 체결구조.The loosening prevention part of the main shaft fastening structure of the manual transmission, characterized in that the strength is lower than the fastening portion to be crushed when the fastening portion and the fixing nut is coupled.
KR1020000077235A 2000-12-15 2000-12-15 Connection structure for main shaft of manual transmission KR20020047993A (en)

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CN105644357A (en) * 2016-03-25 2016-06-08 重庆长安汽车股份有限公司 Rear axle connecting structure

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