KR100872166B1 - Mounting for power steering pump oil pump - Google Patents

Mounting for power steering pump oil pump Download PDF

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Publication number
KR100872166B1
KR100872166B1 KR1020070070109A KR20070070109A KR100872166B1 KR 100872166 B1 KR100872166 B1 KR 100872166B1 KR 1020070070109 A KR1020070070109 A KR 1020070070109A KR 20070070109 A KR20070070109 A KR 20070070109A KR 100872166 B1 KR100872166 B1 KR 100872166B1
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South Korea
Prior art keywords
oil pump
bush
bolt
casing
fastening
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KR1020070070109A
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Korean (ko)
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오원철
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영신정공 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/062—Details, component parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/07—Supply of pressurised fluid for steering also supplying other consumers ; control thereof
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

A combining structure of the power steering oil pump is provided to prevent the deformation or breakage due to the excessive fastening. A combining structure of the power steering oil pump comprises a rear-end board(113) in which the joint hole is formed, a casing(114) in which the joint hole is formed, a bolt(140) with a nut screwing an oil pump(100) to the bracket through the hole of the rear-end board and the casing, a main bush(170) inserted into the bolt, an additional bush being slid to the groove portion formed around one joint hole selected among the rear-end board or the casing.

Description

파워스티어링 오일펌프의 체결구조 {Mounting for Power Steering pump oil Pump}Mounting structure for power steering oil pump {Mounting for Power Steering pump oil Pump}

본 발명은 파워스티어링 오일펌프의 체결구조에 관한 것으로서, 특히 오일펌프를 엔진에 장착 체결 볼트의 과도한 조임으로 발생될 수 있는 오일펌프의 변형이나 파괴를 막을 수 있는 체결구조에 관한 것이다.The present invention relates to a fastening structure of a power steering oil pump, and more particularly, to a fastening structure that can prevent deformation or destruction of an oil pump which may be caused by excessive tightening of an oil pump mounting bolt.

자동차는 운전자가 차량의 운동을 제어할 수 있도록 조향장치가 설치되어 있는데, 현재에는 조향장치를 운전자가 손쉽게 제어할 수 있도록 조력하는 파워스티어링 장치가 일반화되어 설치되어 있다. 이 장치는 오일을 압축하여 그 압축된 오일을 사용하여 조향장치를 사용하게 된다.The vehicle is equipped with a steering device for the driver to control the movement of the vehicle, and now a power steering device for assisting the driver to easily control the steering device is installed in general. The unit compresses the oil and uses the compressed oil to use the steering system.

오일을 압축하는 파워스티어링 펌프로서는 베인펌프가 널리 사용되는데, 베인펌프는 회전자에 일정 각 마다 방사형으로 외면이 개방된 다수개의 슬롯이 형성되고 그 각각의 슬롯에 베인이 설치되고, 그 회전자가 캠 링과 같이 내부가 원형과 타원형으로 형성된 부재 내부에서 회전동력을 전달받아 회전됨으로써 회전자의 베인이 원심력에 의해 원형과 타원형의 캠 링 내부에 접하면서 회전되어 인접하는 베 인 사이의 부피 변화에 의해 오일이 압축되는 원리를 이용한다.As a power steering pump for compressing oil, a vane pump is widely used. A vane pump has a plurality of slots in which the outer surface is radially opened at a predetermined angle in the rotor, and vanes are installed in the respective slots, and the rotor is cam. As the ring is rotated by receiving rotational power inside the circular and elliptical members like the ring, the vane of the rotor is rotated while contacting the inside of the circular and elliptical cam ring by centrifugal force, and the volume is changed between adjacent vanes. Use the principle that the oil is compressed.

이러한 베인펌프는 엔진의 회전력을 전달받아 구동되기 때문에 엔진 쪽에 브래킷 등에 의해 조립된다.Since the vane pump is driven by the rotational force of the engine, the vane pump is assembled to the engine side by a bracket or the like.

도 1에 도시된 바와 같이 베인펌프인 오일펌프(10)의 상부에는 오일 파이프(11)가 연결되고 후단부판(13)에 연장되어 체결부(20)가 형성되어 있다. 체결부(20)에는 구멍(20a)이 형성되어 있고 그 구멍(20a)에 체결볼트(40)가 삽입된다.As shown in FIG. 1, an oil pipe 11 is connected to an upper portion of the oil pump 10, which is a vane pump, and extends to the rear end plate 13 to form a fastening portion 20. A hole 20a is formed in the fastening portion 20, and a fastening bolt 40 is inserted into the hole 20a.

도 2를 참조하면, 베인펌프(10)의 후단부판(13)과 케이싱(14)에는 각각 연장되어 체결부(20,21)가 각각 형성되고 그 체결부(20,21)에는 각각 볼트구멍(20a,21a)이 형성되어 있다. 체결볼트(40)가 이 볼트구멍(20a,21a)에 끼워져 너트(50)와 함께 체결된다. 볼트(40)가 끼워질 때 각각의 체결부(20,21)의 외면에는 엔진 측의 브래킷(30)이 끼워지게 되고 브래킷(30)의 구멍과 볼트 머리 사이에는 부시(bush)(60)가 끼워진다.Referring to FIG. 2, the rear end plates 13 and the casing 14 of the vane pump 10 are extended to form fastening parts 20 and 21, respectively, and the fastening parts 20 and 21 are respectively bolted holes ( 20a and 21a are formed. The fastening bolt 40 is fitted into the bolt holes 20a and 21a and fastened together with the nut 50. When the bolt 40 is fitted, the bracket 30 on the engine side is fitted to the outer surface of each of the fastening portions 20 and 21, and a bush 60 is provided between the hole of the bracket 30 and the bolt head. Is fitted.

따라서 작업자는 볼트(40)에 부시(60)를 끼우고 각 구멍들(20a,21a)을 관통하여 너트(50)와 체결함으로써 작업을 완료한다. 도 3을 참고하면 엔진에 마운팅되기 전의 단면도로서 케이싱(14) 후단에 체결부(20,21)가 형성된 후단부판(13)이 조립되고 그 사이에 회전축(12)을 포함한 여러 부품들이 조립된다.Therefore, the worker completes the work by inserting the bush 60 in the bolt 40 and through the holes 20a and 21a to engage with the nut 50. Referring to FIG. 3, a rear end plate 13 having fastening parts 20 and 21 formed at the rear end of the casing 14 as a cross-sectional view before mounting on the engine is assembled, and various parts including the rotating shaft 12 are assembled therebetween.

그러나 이때 작업자가 볼트(40) 너트(50)를 과도하게 조이게 되면 도 4에 도시된 바와 같이 후단부판(13)이 휘게 되고 갭(G)이 생겨 변형과 파괴를 수반하게 되는 문제점이 있다.However, if the worker excessively tighten the bolt 40 nut 50 as shown in Figure 4 there is a problem that the rear end plate 13 is bent and the gap (G) is accompanied with deformation and destruction.

본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 기존의 부시 외에 후단부판 쪽에 추가 부시가 들어갈 수 있도록 홈을 형성하고 그 홈과 볼트 사이에 상기 추가 부시를 삽입하여 기존의 부시로부터 하중이 전달되면 그 홈으로 슬립되면서 이동함으로써 하중을 제한하게 되어 베인펌프의 성능저하를 방지할 수 있는 파워스티어링 오일펌프의 체결구조를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems of the prior art, forming a groove so that the additional bush into the rear end plate in addition to the existing bush and inserting the additional bush between the groove and the bolt from the existing bush The purpose of the present invention is to provide a fastening structure of a power steering oil pump that can prevent the performance degradation of the vane pump by limiting the load by moving while slipping into the groove when the load is transmitted.

본 발명에 의한 파워스티어링 오일펌프의 체결구조는 볼트에 하중이 작용하여도 추가 부시가 홈부에서 슬라이딩되면 이동하게 되기 때문에 항상 같은 하중이 작용하도록 하여 펌프 변형에 의한 성능 저하를 방지할 수 있는 효과를 제공한다.The fastening structure of the power steering oil pump according to the present invention has the effect of preventing the performance deterioration due to the deformation of the pump by always operating the same load because the additional bush is moved even if the load acts on the bolt sliding in the groove. to provide.

본 발명에 의한 파워스티어링 오일펌프의 체결구조는 체결구멍이 형성된 후단부판과, 상기 후단부판과 마찬가지로 체결구멍이 형성된 케이싱과, 상기 케이싱과 후단부판의 구멍을 통하여 너트와 함께 브래킷에 오일펌프를 체결하는 볼트와, 상기 볼트에 끼워진 메인 부시와, 상기 메인 부시로부터 하중을 전달받아 상기 후단부판 또는 케이싱 중에 선택되는 어느 한 체결구멍 주위에 형성된 홈부에 슬라이딩되는 추가 부시를 포함하는 것을 특징으로 한다.The fastening structure of the power steering oil pump according to the present invention includes an oil pump fastened to a bracket together with a nut through a rear end plate having a fastening hole, a casing having a fastening hole like the rear end plate, and a hole of the casing and the rear end plate. A bolt, a main bush fitted to the bolt, and an additional bush which receives a load from the main bush and slides in a groove formed around one of the fastening holes selected from the rear end plate or the casing.

또한, 상기 추가 부시의 외경은 메인 부시의 외경보다 크게 형성된 것을 특징으로 한다.In addition, the outer diameter of the additional bush is characterized in that formed larger than the outer diameter of the main bush.

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

우선 참조된 도면, 도 5 및 도 6은 본 발명에 의한 오일펌프가 체결된 상태를 보여주는 부분 단면도로서, 도 5는 반 정도 조립된 상태이고 도 6은 완전히 조 립된 상태이다.5 and 6 are partial cross-sectional views showing a state in which an oil pump according to the present invention is fastened. FIG. 5 is half assembled and FIG. 6 is fully assembled.

본 발명에 의한 파워스티어링 오일펌프(100)의 체결구조가 도 5와 도 6에 도시되어 있다. 도시된 바와 같이 오일펌프(100)의 구조는 거의 동일하다. 상부에는 오일 파이프(111)가 연결되어 있고 케이싱(114)과 후단부판(113)이 체결되어 있고 그 사이에 회전축(112)을 비롯한 다른 부품들이 조립되어 있다.The fastening structure of the power steering oil pump 100 according to the present invention is shown in FIGS. 5 and 6. As shown the structure of the oil pump 100 is almost the same. The oil pipe 111 is connected to the upper portion, the casing 114 and the rear end plate 113 are fastened, and other parts including the rotating shaft 112 are assembled therebetween.

후단부판(113)에는 연장되어 체결부(120)가 형성되어 있으며, 그 체결부(120)에는 홈(120b)과 구멍(120a)이 형성되어 있다. 케이싱(114)에 연장된 체결부(121)에는 구멍(121a)이 형성되어 있다.The rear end plate 113 extends to form a fastening part 120, and the fastening part 120 is formed with a groove 120b and a hole 120a. A hole 121a is formed in the fastening portion 121 extending to the casing 114.

후단부판(113)의 체결부(120)에 형성된 홈부(120b)에는 추가 부시(170)가 압입되어 있고 그 옆에는 볼트(140)에 메인 부시(160)가 끼워져 있다. 작업자는 볼트(140)에 메인 부시(160)를 끼우고 브래킷(130)에 끼운 다음 추가 부시(170)와 후단부판(113)의 구멍(120a)을 관통한 다음 다시 케이싱(114)의 구멍(121a)을 관통하여 너트(150)로 체결한다.The additional bush 170 is press-fitted into the groove portion 120b formed in the fastening portion 120 of the rear end plate 113, and the main bush 160 is fitted into the bolt 140. The worker inserts the main bush 160 into the bolt 140 and the bracket 130, and then passes through the hole 120a of the additional bush 170 and the rear end plate 113, and then again the hole of the casing 114 ( Fasten through the nut 150 through 121a).

도 5는 볼트(140)가 조립되면서 메인 부시(160)의 끝단이 추가 부시(170)에 접촉할 때까지 조립된 상태이다. 이러한 상태에서 작업자가 볼트(140)와 너트(150)를 더욱 조이면 도 6에 도시된 바와 같이 메인 부시(160)가 추가 부시(170)를 밀면서 압입하게 되어 조립이 완성된다. 추가 부시(170)는 이때 홈부(120b)에서 슬라이딩된다. 이 상태에서 작업자는 더 이상 조이기가 힘들어지고 조립이 완성된다.5 is assembled while the bolt 140 is assembled until the end of the main bush 160 contacts the additional bush 170. When the operator further tightens the bolt 140 and the nut 150 in this state, as shown in FIG. 6, the main bush 160 pushes the additional bush 170 to complete the assembly. The additional bush 170 then slides in the groove 120b. In this state, the operator can no longer tighten and the assembly is completed.

이를 수치로 예를 들면, 볼트의 토크가 5kgfm일 경우 볼트의 조임하중은 2.6톤이 되나, 부시의 움직임 하중은 1.1톤임을 실험적으로 측정한 바 있다. 또한 이 하중은 추가 부시와 펌프의 체결부의 공차에 의해 조절이 가능하다.For example, when the torque of the bolt is 5kgfm, the tightening load of the bolt is 2.6 tons, but the bushing load is 1.1 tons. This load can also be adjusted by the tolerance of the additional bush and the joint of the pump.

본 발명의 실시예에서는 후단부판이 체결되는 위치에 추가 부시를 넣은 구조를 보여주고 있으나 이 기술분야에서 통상의 지식을 가진 자가 생각할 수 있는 바와 같이 그 반대편인 케이싱 쪽에 추가 부시를 넣는 구조를 충분히 생각할 수 있다. 즉 볼트를 케이싱 쪽으로부터 먼저 끼우고 그 체결구조에 추가 부시를 갖도록 구성할 수도 있는 것이다.The embodiment of the present invention shows a structure in which an additional bush is inserted in a position at which the rear end plate is fastened, but as a person skilled in the art can think, the structure of inserting an additional bush on the opposite side of the casing is sufficiently considered. Can be. In other words, the bolt may be inserted first from the casing side and configured to have an additional bush in the fastening structure.

본 발명은 상기 실시 예에 한정되지 않고 본 발명의 기술적 요지를 벗어나지 않는 범위 내에서 당해 기술분야의 통상의 지식을 가진 자에 의해 다양하게 변형 실시될 수 있다.The present invention is not limited to the above embodiments and may be variously modified and implemented by those skilled in the art without departing from the technical gist of the present invention.

도 1은 종래 오일펌프의 정면도,1 is a front view of a conventional oil pump,

도 2는 도 1에 도시된 오일펌프가 체결된 구조를 보여주는 부분 단면도,2 is a partial cross-sectional view showing a structure in which the oil pump shown in FIG. 1 is fastened;

도 3은 종래 오일펌프의 단면도,3 is a cross-sectional view of a conventional oil pump,

도 4는 종래 오일펌프가 체결된 후의 단면도,4 is a cross-sectional view after the conventional oil pump is fastened,

도 5 및 도 6은 본 발명에 의한 오일펌프가 체결된 상태를 보여주는 부분 단면도로서, 도 5는 반 정도 조립된 상태이고 도 6은 완전히 조립된 상태이다.5 and 6 are partial cross-sectional view showing a state in which the oil pump according to the present invention is fastened, Figure 5 is half assembled and Figure 6 is fully assembled.

<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

100 : 오일펌프 111 : 오일 파이프100: oil pump 111: oil pipe

112 : 회전축 113 : 후단부판112: rotation axis 113: rear end plate

114 : 케이싱 120, 121 : 체결부114: casing 120, 121: fastening portion

130 : 브래킷 140 : 볼트130: bracket 140: bolt

150 : 너트 160 : 메인 부시150: nut 160: main bush

170 : 추가 부시170: additional bush

Claims (2)

체결구멍이 형성된 후단부판과, 상기 후단부판과 마찬가지로 체결구멍이 형성된 케이싱과, 상기 케이싱과 후단부판의 구멍을 통하여 너트와 함께 브래킷에 오일펌프를 체결하는 볼트와, 상기 볼트에 끼워진 메인 부시와, 상기 메인 부시로부터 하중을 전달받아 상기 후단부판 또는 케이싱 중에 선택되는 어느 한 체결구멍 주위에 형성된 홈부에 슬라이딩되는 추가 부시를 포함하는 것을 특징으로 하는 파워스티어링 오일펌프의 체결구조.A rear end plate having a fastening hole, a casing having a fastening hole similarly to the rear end plate, a bolt for fastening an oil pump to the bracket together with a nut through the holes of the casing and the rear end plate, a main bush fitted to the bolt, And an additional bush which receives a load from the main bush and slides into a groove formed around one of the fastening holes selected from the rear end plate or the casing. 제1항에 있어서,The method of claim 1, 상기 추가 부시의 외경은 메인 부시의 외경보다 크게 형성된 것을 특징으로 하는 파워스티어링 오일펌프의 체결구조.The outer diameter of the additional bush is a fastening structure of the power steering oil pump, characterized in that formed larger than the outer diameter of the main bush.
KR1020070070109A 2007-07-12 2007-07-12 Mounting for power steering pump oil pump KR100872166B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0491378A (en) * 1990-08-01 1992-03-24 Toyoda Mach Works Ltd Device for mounting pump
JPH09123932A (en) * 1995-11-02 1997-05-13 Kojima Press Co Ltd Resin made oil reservoir tank
JP2004353786A (en) 2003-05-29 2004-12-16 Favess Co Ltd Elastic support structure and power steering device using the same
JP2006336485A (en) 2005-05-31 2006-12-14 Nachi Fujikoshi Corp Pump unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0491378A (en) * 1990-08-01 1992-03-24 Toyoda Mach Works Ltd Device for mounting pump
JPH09123932A (en) * 1995-11-02 1997-05-13 Kojima Press Co Ltd Resin made oil reservoir tank
JP2004353786A (en) 2003-05-29 2004-12-16 Favess Co Ltd Elastic support structure and power steering device using the same
JP2006336485A (en) 2005-05-31 2006-12-14 Nachi Fujikoshi Corp Pump unit

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