KR20020027979A - Support yoke of rack and pinion gear - Google Patents

Support yoke of rack and pinion gear Download PDF

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Publication number
KR20020027979A
KR20020027979A KR1020000058818A KR20000058818A KR20020027979A KR 20020027979 A KR20020027979 A KR 20020027979A KR 1020000058818 A KR1020000058818 A KR 1020000058818A KR 20000058818 A KR20000058818 A KR 20000058818A KR 20020027979 A KR20020027979 A KR 20020027979A
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KR
South Korea
Prior art keywords
rack
support yoke
pinion
yoke
bar
Prior art date
Application number
KR1020000058818A
Other languages
Korean (ko)
Inventor
이준열
Original Assignee
밍 루
주식회사 만도
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Application filed by 밍 루, 주식회사 만도 filed Critical 밍 루
Priority to KR1020000058818A priority Critical patent/KR20020027979A/en
Publication of KR20020027979A publication Critical patent/KR20020027979A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • B62D3/12—Steering gears mechanical of rack-and-pinion type
    • B62D3/123—Steering gears mechanical of rack-and-pinion type characterised by pressure yokes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/16—Arrangement of linkage connections
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/26—Racks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/02—Control of vehicle driving stability

Abstract

PURPOSE: A support yoke for a rack and a pinion is provided to increase the force of the support yoke applied to a rack bar by using electromagnetic force to make a wheel heavy at a high speed driving for preventing the leaning of a vehicle. CONSTITUTION: A support yoke for a rack and a pinion includes a rack housing(1) formed long in the horizontal direction, a pinion(3a) received in the housing and formed at a lower part of a pinion bar(3), a rack bar(2) formed with a rack(2a) at a side to be engaged with the pinion, a support yoke(4) provided to a rear surface of the rack for closely contacting the rack against the pinion, a spring(5) for elastically supporting the support yoke, a yoke seat(7) for receiving the support yoke and the spring, and a solenoid(10) received in the yoke seat for closely contacting the support yoke against the rack bar.

Description

랙과 피니언기어의 서포트요크 {SUPPORT YOKE OF RACK AND PINION GEAR}Support yoke of rack and pinion gear {SUPPORT YOKE OF RACK AND PINION GEAR}

본 발명은 랙과 피니언기어의 서포트요크에 관한 것으로, 보다 상세하게는 전자기력을 이용하여 랙바에 작용하는 서포트요크의 힘을 증대시켜 고속주행시 조향핸들을 무겁게 하여 차량의 쏠림을 방지해주는 랙과 피니언기어의 서포트 요크에 관한 것이다.The present invention relates to a support yoke of a rack and a pinion gear, and more specifically, to a rack and a pinion gear that increases the force of a support yoke acting on the rack bar by using electromagnetic force to make the steering wheel heavy during high-speed driving, thereby preventing the vehicle from tipping. It is about support yoke of.

일반적으로 차량용 조향장치는 운전자의 조작에 따라 차량의 진행방향을 바꿀 수 있도록 마련되며, 조향핸들의 회전력이 스티어링칼럼의 조향주축을 통하여 유니버설조인트에 전달되고, 이 유니버설조인트에 전달된 조향핸들의 회전력은 랙과 피니언기어를 통하여 바퀴로 전달되어 차량을 조향할 수 있게 된다.In general, the steering device for a vehicle is provided to change the driving direction of the vehicle according to the driver's operation, and the rotational force of the steering wheel is transmitted to the universal joint through the steering shaft of the steering column, and the rotational force of the steering wheel transmitted to the universal joint. Is transmitted to the wheels through the rack and the pinion gear to steer the vehicle.

도 1은 종래 랙과 피니언기어의 서포트요크의 조립단면도이다. 이에 도시된 바와 같이 랙하우징(101)은 좌·우방향으로 길게 형성된 튜브로서 그 내부에는 피니언바(103)의 하축에 형성된 피니언(103a)과 이에 치합될 수 있는 랙(102a)이 형성된 랙바(102)를 수용한다.1 is an assembled cross-sectional view of a support yoke of a conventional rack and pinion gear. As shown therein, the rack housing 101 is a tube formed long in the left and right directions, and a rack bar having a pinion 103a formed on a lower shaft of the pinion bar 103 and a rack 102a that can be engaged therewith. 102).

그리고, 이 랙바(102)는 금속재 원형봉으로서 일부에 랙(102a)이 형성되어 있고, 이 랙(102a)의 배면에는 상기 랙(102a)과 피니언(103a)이 치합될 수 있도록 밀어주는 서포트요크(104)가 형성되어 있다.In addition, the rack bar 102 is a round rod of metal, and a rack 102a is formed on a part of the rack 102a, and a support yoke for pushing the rack 102a and the pinion 103a to be engaged with the rear surface of the rack 102a. 104 is formed.

또한, 이 서포트요크(104)는 원형봉에 상기 랙바(102)를 수용할 수 있는 반원형의 함몰부가 일면에 형성되어 있고, 이 서포트요크(104)의 배면에는 스프링(105)에 의해서 탄성지지된다.In addition, the support yoke 104 has a circular rod having a semi-circular depression for accommodating the rack bar 102 on one surface thereof. The support yoke 104 is elastically supported by a spring 105 on the back surface of the support yoke 104. .

한편, 이 서포트요크(104)는 중공원통의 일단에 플랜지가 형성된 요크시트(107)의 내부에 수용되고, 이 요크시트(107)의 타단에는 커버(108)가 부착된다.On the other hand, the support yoke 104 is accommodated inside the yoke sheet 107 having a flange formed at one end of the hollow cylinder, and the cover 108 is attached to the other end of the yoke sheet 107.

그리고 이 커버(108)의 중앙에는 나사산이 형성된 구멍이 형성되고, 이 구멍에 수용되며 외주면에 나사산이 형성되고 밑면에 스프링(105)을 삽입하기 위한 돌출부가 중앙에 형성된 플러그(106)가 치합되어 스프링(105)을 지지하면서 요크시트(107)를 밀폐시켜준다.In the center of the cover 108, a threaded hole is formed, and the plug 106 is formed in the hole, the threaded portion is formed on the outer circumferential surface, and the protrusion 106 at the center for inserting the spring 105 is engaged. The yoke sheet 107 is sealed while supporting the spring 105.

이로써 스프링에 의해 서포트요크를 랙의 배면에 밀착시켜줌으로 랙이 피니언이 치합된다. 그러므로 운전자가 조향핸들을 회전시킬 때 발생되는 회전력이 조향축을 통하여 피니언바에 전달되고, 이 피니언바에 전달된 회전력은 피닌언을 통하여 랙에 전달되며, 랙에 전달된 회전력이 랙바를 이송시킴으로 이 랙바에 연결된 타이로드를 통하여 바퀴가 동작되게 되는 것이다.This allows the pinion to engage the rack by keeping the support yoke close to the back of the rack by means of a spring. Therefore, the torque generated when the driver rotates the steering wheel is transmitted to the pinion bar through the steering shaft, the torque transmitted to the pinion bar is transmitted to the rack through the pinion, and the torque transmitted to the rack transfers the rack bar to the rack bar. The wheels are operated through the connected tie rods.

그러나, 이와 같은 종래 랙과 피니언기어의 서포트요크는, 서포트요크를 랙바에 밀착시켜 주는 스프링의 탄성력이 약해지고 서포트요크의 접촉면과 랙바 사이가 마모됨으로 랙바의 이송 중 흔들림이 발생하며 특히 고속으로 주행할 때 핸들이 가벼워 차량이 한쪽으로 쏠리는 현상이 발생하는 문제점이 있었다.However, such a support yoke of the conventional rack and pinion gear has a weak elastic force of the spring that closely holds the support yoke to the rack bar, and wears between the contact surface of the support yoke and the rack bar, causing vibration during transportation of the rack bar. When the steering wheel is light, there is a problem that the vehicle is pulled to one side.

본 발명은 이와 같은 종래의 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 전자기력을 이용하여 랙바에 작용하는 서포트요크의 힘을 증대시켜 고속주행시 주행핸들을 무겁게 하여 차량의 쏠림을 방지해주는 랙과 피니언기어의 서포트 요크를 제공하는 것이다.The present invention is to solve such a conventional problem, an object of the present invention is to increase the force of the support yoke acting on the rack bar using the electromagnetic force to make the driving handle heavy during high-speed driving to prevent the vehicle from tipping the rack To provide a support yoke for the gear.

도 1은 종래 랙과 피니언기어의 서포트요크를 보인 조립단면도이다.1 is an assembled cross-sectional view showing a support yoke of a conventional rack and pinion gear.

도 2는 본 발명에 따른 랙과 피니언기어의 서포트요크를 보인 조립단면도이다.Figure 2 is an assembled cross-sectional view showing the support yoke of the rack and pinion gear in accordance with the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1 : 랙하우징 2 : 랙바1: Rack Housing 2: Rack Bar

2a : 랙 3 : 피니언바2a: rack 3: pinion bar

3a : 피니언 4 : 서포트요크3a: Pinion 4: Support York

5 : 스프링 6 : 플러그5: spring 6: plug

7 : 요크시트 8 : 커버7: yoke sheet 8: cover

10 : 솔레노이드 11 : 보빈10: solenoid 11: bobbin

12 : 코일 13 : 베어링12 coil 13 bearing

14 : 로드14: loading

위와 같은 목적을 달성하기 위한 본 발명의 랙과 피니언기어의 서포트요크는, 좌·우방향으로 길게 형성된 튜브인 랙하우징과, 상기 랙하우징에 수용되며 피니언바의 하측에 형성된 피니언과, 상기 피니언에 치합되며 일측에 랙이 형성된 랙바와, 상기 피니언에 상기 랙을 밀착시킬 수 있도록 상기 랙의 배면에 마련되는 서포트요크와, 상기 서포트요크를 탄성지지하는 스프링과 상기 서포트요크와 스프링을 수용하는 요크시트와, 상기 서포트요크를 상기 랙바에 밀착시킬수 있도록 상기 요크시트내에 솔레노이드가 구비되는 것을 특징으로 한다.The support yoke of the rack and pinion gear of the present invention for achieving the above object, the rack housing is a tube formed in the left and right direction elongated, the pinion is accommodated in the rack housing and formed on the lower side of the pinion bar, the pinion A rack bar that is engaged and has a rack formed on one side, a support yoke provided on a rear surface of the rack to closely contact the rack with the pinion, a spring for elastically supporting the support yoke, and a yoke sheet accommodating the support yoke and the spring And a solenoid is provided in the yoke sheet so that the support yoke can be brought into close contact with the rack bar.

이하에서는 본 발명의 바람직한 일실시예를 첨부한 도면을 참조하여 상세히 설명한다. 도 2는 본 발명에 따른 랙과 피니언기어 서포트요크를 보인 조립단면도이다.Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in detail. Figure 2 is an assembled cross-sectional view showing the rack and pinion gear support yoke according to the present invention.

도면에 도시된 바와 같이, 랙하우징(1)은 좌·우방향으로 길게 형성된 튜브로서 그 내부에는 피니언바(3)의 하축에 형성된 피니언(3a)과 치합될 수 있는 랙(2a)이 형성된 랙바(2)를 수용한다.As shown in the drawing, the rack housing 1 is a tube formed long in the left and right directions, and a rack bar having a rack 2a formed therein which can be engaged with the pinion 3a formed on the lower shaft of the pinion bar 3. Accept (2).

그리고, 이 랙바(2)는 금속재 원형봉으로서 일부에 랙(2a)이 형성되어 있고, 랙(2a)의 배면에는 상기 랙(2a)과 피니언(3a)이 치합될 수 있도록 밀어주는 서포트요크(4)가 형성되어 있다.And, the rack bar (2) is a circular rod of metal is formed in the rack (2a) in part, and the support yoke for pushing the rack (2a) and the pinion (3a) to the back of the rack (2a) ( 4) is formed.

또한, 이 서포트요크(4)는 원형봉에 상기 랙바(2)를 수용할 수 있는 반원형의 함몰부가 일면에 형성되어 있고, 이 서포트요크(4)의 배면에는 스프링(5)에 의해서 탄성지지된다.In addition, the support yoke 4 is provided with a semi-circular recessed portion for accommodating the rack bar 2 on a round bar, and is elastically supported by a spring 5 on the back of the support yoke 4. .

한편, 이 서포트요크(4)는 중공원통의 일단에 플랜지가 형성된 요크시트(7)의 내부에 수용되고, 이 요크시트(7)의 타단에는 커버(8)가 부착된다.On the other hand, the support yoke 4 is accommodated inside the yoke sheet 7 having a flange formed at one end of the hollow cylinder, and the cover 8 is attached to the other end of the yoke sheet 7.

그리고 이 커버(8)의 중앙에는 나사산이 형성된 구멍이 형성되고, 이 구멍에플러그(6)가 치합되어 스프링(5)을 지지하면서 요크시트(7)를 밀폐시켜준다.A screw threaded hole is formed in the center of the cover 8, and the plug 6 is engaged with the hole to seal the yoke sheet 7 while supporting the spring 5.

다음, 이 플러그(6)의 중앙에는 상기 요크시트(7)의 일면에 결합된 로드(14)를 안내하는 실린더가 형성되어 있고, 이 로드(14)는 스프링(5)의 내부에 수용되어 있다.Next, a cylinder for guiding the rod 14 coupled to one surface of the yoke seat 7 is formed at the center of the plug 6, and the rod 14 is housed inside the spring 5. .

또한, 이 로드(14)의 주위에는 요크시트(7)의 내주면에 접촉되고 상기 스프링(5)과 소정의 에어갭을 이루면서 보빈(11)이 형성되어있고, 상기 보빈(11)의 내부에는 코일(12)이 감겨져있다.In addition, a bobbin 11 is formed around the rod 14 in contact with the inner circumferential surface of the yoke sheet 7 to form a predetermined air gap with the spring 5, and a coil is formed inside the bobbin 11. 12 is wound.

이와같이 구성된 랙과 피니언기어의 서포터요크는 차량의 속도가 고속일 때 상기 솔레노이드의 코일에 전류를 흘려주면 자기장이 형성되어 로드가 자화됨으로 서포트요크를 랙바에 밀착시킨다. 그러므로 랙바와 서포트요크의 마찰력이 증대되어 특히 고속 주행시 조향핸들이 무거워져 직진주행성을 향상시킨다.The supporter yoke of the rack and pinion gear configured as described above has a magnetic field formed by flowing a current through the coil of the solenoid when the speed of the vehicle is high, so that the rod is magnetized to closely support the support yoke to the rack bar. Therefore, the friction between the rack bar and the support yoke is increased, so that the steering wheel is heavy, especially at high speeds, to improve the straight running ability.

이상에서 설명한 바와 같이, 본 발명에 따른 랙과 피니언기어의 서포트요크는 고속으로 주행할 때 주행핸들을 무겁게 해주어 차량의 쏠림을 방지해주고 직진주행성을 향상시킨다.As described above, the support yoke of the rack and pinion gear according to the present invention makes the running handle heavy when traveling at high speed, thereby preventing the vehicle from tipping and improving the straight running ability.

Claims (1)

좌,우방향으로 길게 형성된 튜브인 랙하우징과, 상기 랙하우징에 수용되며 피니언바의 하측에 형성된 피니언과, 상기 피니언에 치합되며 일측에 랙이 형성된 랙바와, 상기 피니언에 상기 랙을 밀착시킬 수 있도록 상기 랙의 배면에 마련되는 서포트요크와, 상기 서포트요크를 탄성지지하는 스프링과 상기 서포트요크와 스프링을 수용하는 요크시트로 구비되는 랙과 피니언기어의 서포트요크에 있어서,Rack housing which is a tube formed long in the left, right direction, the pinion is accommodated in the rack housing and formed on the lower side of the pinion bar, the rack bar is fitted to the pinion and the rack is formed on one side, the rack can be in close contact with the pinion In the support yoke of the rack and the pinion gear is provided with a support yoke provided on the rear of the rack, a spring for elastically supporting the support yoke and a yoke seat for receiving the support yoke and the spring, 상기 서포트요크(4)를 상기 랙바(2)에 밀착시킬수 있도록 상기 요크시트(7)내에 솔레노이드(10)가 구비되는 것을 특징으로 하는 랙과 피니언기어의 서포트요크.Support yoke of the rack and pinion gear, characterized in that the solenoid (10) is provided in the yoke sheet (7) so that the support yoke (4) in close contact with the rack bar (2).
KR1020000058818A 2000-10-06 2000-10-06 Support yoke of rack and pinion gear KR20020027979A (en)

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KR1020000058818A KR20020027979A (en) 2000-10-06 2000-10-06 Support yoke of rack and pinion gear

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KR20020027979A true KR20020027979A (en) 2002-04-15

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KR1020000058818A KR20020027979A (en) 2000-10-06 2000-10-06 Support yoke of rack and pinion gear

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100892714B1 (en) * 2007-11-19 2009-04-15 현대자동차주식회사 Pinion valve assembly of steering system for vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5975863A (en) * 1982-10-21 1984-04-28 Koyo Jidoki Kk Rack and pinion type steering apparatus
KR970041053A (en) * 1995-12-29 1997-07-24 김태구 Handling control device according to vehicle speed change
KR19980039889A (en) * 1996-11-28 1998-08-17 양재신 Steering Gear Rack Guide Device
KR19980049008A (en) * 1996-12-19 1998-09-15 박병재 Variable Friction Force Steering Rack Gear Support Structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5975863A (en) * 1982-10-21 1984-04-28 Koyo Jidoki Kk Rack and pinion type steering apparatus
KR970041053A (en) * 1995-12-29 1997-07-24 김태구 Handling control device according to vehicle speed change
KR19980039889A (en) * 1996-11-28 1998-08-17 양재신 Steering Gear Rack Guide Device
KR19980049008A (en) * 1996-12-19 1998-09-15 박병재 Variable Friction Force Steering Rack Gear Support Structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100892714B1 (en) * 2007-11-19 2009-04-15 현대자동차주식회사 Pinion valve assembly of steering system for vehicle

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