KR19990021863U - Elastic shoe holder of oilhydraulic pump - Google Patents

Elastic shoe holder of oilhydraulic pump Download PDF

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Publication number
KR19990021863U
KR19990021863U KR2019990000759U KR19990000759U KR19990021863U KR 19990021863 U KR19990021863 U KR 19990021863U KR 2019990000759 U KR2019990000759 U KR 2019990000759U KR 19990000759 U KR19990000759 U KR 19990000759U KR 19990021863 U KR19990021863 U KR 19990021863U
Authority
KR
South Korea
Prior art keywords
shoe
shoe holder
elastic
hydraulic pump
cylinder
Prior art date
Application number
KR2019990000759U
Other languages
Korean (ko)
Inventor
류영선
박종철
Original Assignee
추수욱
주식회사 삼주기계
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 추수욱, 주식회사 삼주기계 filed Critical 추수욱
Priority to KR2019990000759U priority Critical patent/KR19990021863U/en
Priority to JP2000595057A priority patent/JP3375332B2/en
Priority to PCT/KR1999/000286 priority patent/WO2000043672A1/en
Priority to CNB99801205XA priority patent/CN1136388C/en
Priority to AU41709/99A priority patent/AU4170999A/en
Publication of KR19990021863U publication Critical patent/KR19990021863U/en
Priority to KR2019990016680U priority patent/KR200169204Y1/en
Priority to US09/441,014 priority patent/US6352017B1/en
Priority to DE29921501U priority patent/DE29921501U1/en
Priority to JP2002286341A priority patent/JP2003155973A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—Pistons
    • F04B1/126—Piston shoe retaining means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—Details or component parts
    • F04B1/2078—Swash plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/128—Driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—Details or component parts
    • F04B1/2035—Cylinder barrels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—Details or component parts
    • F04B1/2064—Housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/11—Kind or type liquid, i.e. incompressible

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

유압펌프에 있어서, 피스톤 부재가 유체를 원활하게 흡입, 토출토록 하는 기능을 위해 슈 홀더 부재와 함께 사용된 탄성부재, 핀 부재, 배럴부재의 기능을 하나의 부재가 할 수 있도록 형성된 유압펌프의 탄성 슈 홀더에 관한 것이다.In the hydraulic pump, the elasticity of the hydraulic pump formed so that one member can function as the elastic member, the pin member, and the barrel member used together with the shoe holder member for the function of allowing the piston member to smoothly suck and discharge the fluid. Relates to a shoe holder.

이러한 슈 홀더를 제공하기 위한 유압펌프는, 구동부재의 회전력을 전달하는 축과, 유체가 출입되는 복수개의 유로가 형성되고 중앙부에 원기둥형 홈이 형성되는 케이스와, 이 케이스의 홈에서 상기한 축의 회전력을 전달받아 회전하는 실린더 부재와, 이 실린더 부재에 형성된 실린더 홀 내에서 직선 왕복 운동하는 피스톤 부재와, 상기한 케이스 부재와 결합되는 사판 부재를 포함하는 유압펌프에 있어서,The hydraulic pump for providing such a shoe holder includes a shaft for transmitting the rotational force of the driving member, a case in which a plurality of flow paths through which the fluid flows in and a cylindrical groove is formed in the center, and the shaft described above in the groove of the case. In a hydraulic pump comprising a cylinder member which is rotated by a rotational force, a piston member linearly reciprocating in a cylinder hole formed in the cylinder member, and a swash plate member engaged with the case member.

상기한 실린더 부재의 일측면에는 구면부가 형성되고, 상기한 피스톤 부재와 사판 부재 사이에는 슈 부재가 위치하며, 이러한 슈 부재에 끼워지고 외측면이 실린더 부재의 구면부와 접촉되도록 이루어지는 탄성을 갖는 유압펌프의 탄성 슈 홀더를 제공한다.A spherical surface portion is formed on one side of the cylinder member, and a shoe member is positioned between the piston member and the swash plate member, and the hydraulic fluid having elasticity is fitted to the shoe member and the outer surface is in contact with the spherical portion of the cylinder member. Provide an elastic shoe holder for the pump.

상기한 슈 홀더는 슈 부재에 끼워질 수 있도록 그 중앙부에 형성되는 홀을 구비하고, 이 홀을 중심으로 원주 방향으로 형성되고 외측면이 곡면을 갖도록 굽혀진 다수의 탄성부가 구비된 것을 특징으로 한다.The shoe holder has a hole formed in the center portion thereof so as to be fitted to the shoe member, and a plurality of elastic parts are formed in the circumferential direction around the hole and bent to have a curved surface. .

Description

유압펌프의 탄성 슈 홀더{Elastic shoe holder of oilhydraulic pump}Elastic shoe holder of oilhydraulic pump

본 고안은 유압펌프의 탄성 슈 홀더에 관한 것으로서, 더욱 상세하게는 유압펌프에 있어서 피스톤 부재가 유체를 원활하게 흡입, 토출하도록 하는 기능을 위해 슈 홀더 부재와 함께 사용된 탄성부재, 핀 부재의 기능을 하나의 부재가 할 수 있도록 이루어진 유압펌프의 탄성 슈 홀더에 관한 것이다.The present invention relates to an elastic shoe holder of a hydraulic pump, and more particularly, the function of the elastic member, the pin member used with the shoe holder member for the function of the piston member to smoothly suck and discharge the fluid in the hydraulic pump It relates to an elastic shoe holder of the hydraulic pump made so that one member.

일반적으로 유압펌프는 고압용에서는 사판식 피스톤 펌프형태가 주로 사용되며, 이러한 사판식 피스톤 펌프의 피스톤 부재의 구조는 슈 붙이 피스톤 형태가 주로 사용되고 있다.In general, the hydraulic pump is mainly used in the form of a swash plate piston pump for high pressure, and the piston member of the swash plate piston pump is mainly used in the form of a piston with a shoe.

상기한 구조의 유압펌프에서 사용되는 슈 홀더 부재는 유체를 원활하게 흡입, 토출 할 수 있는 기능을 갖는다.The shoe holder member used in the hydraulic pump of the above-described structure has a function to smoothly suck and discharge the fluid.

도 4는 상기한 바와 같은 일반적인 유압펌프를 도시한 단면도로서, 구동부재(미도시)에 의해서 전달되는 회전력을 전달하는 축(50)과, 유체가 출입되는 복수개의 유로(52)(54)가 형성되고 중앙부에 원기둥형 홈(56)이 형성되는 케이스(58)와, 이 케이스(58)의 원기둥형 홈(56)에서 상기한 축(50)의 회전력을 전달받아 회전하는 실린더 부재(60)와, 이 실린더 부재(60)에 형성된 실린더 홀(62) 내에서 직선 왕복 운동하는 피스톤 부재(64)와, 상기한 케이스(58)와 결합되며 일정한 각도를 가지고 경사진 경사면(66)을 보유한 사판부재(68)를 포함한다.4 is a cross-sectional view showing a general hydraulic pump as described above, the shaft 50 for transmitting the rotational force transmitted by the drive member (not shown), and a plurality of flow paths 52, 54 through which the fluid is entered A case 58 having a cylindrical groove 56 formed at a central portion thereof, and a cylinder member 60 which is rotated by receiving the rotational force of the shaft 50 from the cylindrical groove 56 of the case 58. And a swash plate having a piston member 64 linearly reciprocating in the cylinder hole 62 formed in the cylinder member 60, and an inclined surface 66 that is inclined at a predetermined angle in engagement with the case 58 described above. And a member 68.

상기한 피스톤 부재(64)의 구조는 실린더 부재(60)내에 구성된 실린더 홀(62)에서 직선 왕복운동 하는 실린더(70)와, 상기한 축(50)의 회전력을 전달받아 회전하는 실린더 부재(60)와 연동하여 사판부재(68)에 형성된 경사면(66)을 따라 회전하는 슈(72)와, 이 슈(72)가 사판부재(68)의 경사면(66)을 따라 자유롭게 이동할 수 있도록 볼 조인트로 구성된 연결부(74)를 갖는다.The structure of the piston member 64 includes a cylinder 70 linearly reciprocating in a cylinder hole 62 formed in the cylinder member 60 and a cylinder member 60 that is rotated by receiving the rotational force of the shaft 50. Shoe 72 that rotates along the inclined surface 66 formed on the swash plate member 68 in conjunction with the swash plate member 68, and the ball 72 so as to move freely along the inclined surface 66 of the swash plate member 68 It has a connecting portion 74 configured.

또, 상기한 실린더 부재(60)내에 형성되며 실린더 홀(62)과 유로(52)(54)가 통하도록 마련되는 홀(76)과, 상기한 피스톤 부재(64)의 슈(72)를 사판부재(68)로 밀착시키는 슈 홀더(78)를 포함한다.In addition, a swash plate of the hole 76 formed in the cylinder member 60 and provided to allow the cylinder hole 62 and the flow paths 52 and 54 to pass through, and the shoe 72 of the piston member 64 described above. And a shoe holder 78 in close contact with the member 68.

상기한 실린더 부재(60) 내에는 양측의 칼라(80) 사이에 탄력 설치되는 탄성부재(82)와, 이 탄성부재(82)의 탄성력을 전달하며 실린더 부재(60)내에 끼워지는 핀 부재(84)와, 상기한 핀 부재(84)의 일측에 위치하며 슈 홀더(78)를 지지하는 배럴부재(86)를 포함한다.In the cylinder member 60, an elastic member 82 elastically installed between the collars 80 on both sides, and a pin member 84 that transmits the elastic force of the elastic member 82 and fits into the cylinder member 60. And a barrel member 86 positioned on one side of the pin member 84 to support the shoe holder 78.

상기한 바와 같은 유압펌프는 축(50)이 도시되지 않은 구동부재의 회전력을 실린더 부재(60)에 전달하면 탄성부재(82)의 탄성력을 전달받은 핀 부재(84)가 그 힘흘 배럴부재(86)에 전달하며, 상기한 배럴부재(86)는 슈 홀더(78)를 사판부재(68) 방향으로 밀어주게 된다.As described above, the hydraulic pump transmits the rotational force of the driving member (not shown) to the cylinder member 60, and the pin member 84 receiving the elastic force of the elastic member 82 receives the force barrel member 86. ), The barrel member 86 pushes the shoe holder 78 in the direction of the swash plate member 68.

따라서, 상기한 피스톤 부재(64)의 슈(72)가 사판부재(68)의 경사면(66)에 밀착되며, 그 경사면(66)을 따라 이동하면서 피스톤 부재(64)의 실린더(70)가 회전하는 실린더 부재(60)에 포함된 실린더 홀(62) 내에서 직선 왕복운동하며, 일측의 실린더 홀(62)과 통하는 유로(52)에서 유체를 흡입하고 회전 이동하여 반대편 유로(54)로 유체를 토출하여 유압을 발생시킨다.Therefore, the shoe 72 of the piston member 64 is in close contact with the inclined surface 66 of the swash plate member 68, and the cylinder 70 of the piston member 64 rotates while moving along the inclined surface 66. The linear reciprocating motion in the cylinder hole 62 included in the cylinder member 60 to suck the fluid in the flow path 52 communicating with the cylinder hole 62 on one side and rotate the fluid to the opposite flow path 54. Discharge to generate hydraulic pressure.

이때, 유체의 흡입시에는 양측 칼라(80)에 탄지된 탄성부재(82)가 실린더 부재(60)를 밀어주고, 토출시에는 상기한 탄성부재(82)가 슈 홀더(78)를 밀어주어 피스톤 부재(64)의 일측이 접촉되는 슈 홀더(78)와 볼 조인트로 이루어진 연결부(74)가 사판부재(68)의 경사면(72)에 밀착되어 유체 발생시 전해오는 충격을 흡수하도록 되어있다.At this time, when the fluid is sucked, the elastic member 82 supported by the collar 80 on both sides pushes the cylinder member 60, and when discharging, the elastic member 82 pushes the shoe holder 78 to piston. The connecting portion 74 formed of the shoe holder 78 and the ball joint in contact with one side of the member 64 is in close contact with the inclined surface 72 of the swash plate member 68 to absorb the shock transmitted when the fluid is generated.

그러나, 이와 같은 유압펌프에 적용되는 슈 홀더(78)는 탄성력이 갖춰지지 않기 때문에 탄성부재(82), 핀 부재(84), 배럴 부재(86) 등을 함께 사용해야만 유압펌프 작동시 피스톤 부재(64)의 슈(72)를 사판부재(68) 방향으로 밀착시켜 상기한 피스톤 부재(64)가 유체를 원활하게 흡입, 토출 할 수 있게된다.However, since the shoe holder 78 applied to such a hydraulic pump is not equipped with an elastic force, it is necessary to use the elastic member 82, the pin member 84, the barrel member 86, and the like together with the piston member during the hydraulic pump operation. By adhering the shoe 72 of 64 to the swash plate member 68, the piston member 64 can smoothly suck and discharge the fluid.

따라서 상기한 바와 같은 종래의 유압펌프는 제작비용이 증가하며 여러 가지 부품이 조립되어야 하기 때문에 조립시간이 길어지게 되어 생산성이 저하되는 문제점이 발생하게 된다.Therefore, the conventional hydraulic pump as described above increases the manufacturing cost and the assembly time is long because the various parts must be assembled, there is a problem that the productivity is lowered.

본 고안은 상기한 바와 같은 종래의 문제점을 해결하기 위하여 안출된 것으로서, 본 고안의 목적은 피스톤 부재가 유체를 원활하게 흡입, 토출 할 수 있도록 하기 위하여 슈 홀더 부재와 같이 사용되는 탄성부재, 핀 부재, 배럴 부재 등을 제거하고, 이와 동일한 기능을 하나의 부재가 할 수 있도록 이루어진 유압펌프의 탄성 슈 홀더를 제공하는데 있다.The present invention is devised to solve the conventional problems as described above, an object of the present invention is an elastic member, a pin member used as a shoe holder member in order to enable the piston member to smoothly suck and discharge the fluid The present invention provides a resilient shoe holder of a hydraulic pump that removes a barrel member and the like so that one member can perform the same function.

상기한 바와 같은 본 고안의 목적을 실현하기 위하여, 구동부재의 회전력을 전달하는 축과, 유체가 출입되는 복수개의 유로가 형성되고 중앙부에 원기둥형 홈이 형성되는 케이스와, 이 케이스의 홈에서 상기한 축의 회전력을 전달받아 회전하는 실린더 부재와, 이 실린더 부재에 형성된 실린더 홀 내에서 직선 왕복 운동하는 피스톤 부재와, 상기한 케이스 부재와 결합되는 사판 부재를 포함하는 유압펌프에 있어서,In order to realize the object of the present invention as described above, a case for transmitting the rotational force of the drive member, a plurality of flow paths through which the fluid enters and is formed with a cylindrical groove in the center, and the groove in the case In a hydraulic pump comprising a cylinder member which is rotated by receiving a rotational force of one axis, a piston member linearly reciprocating in a cylinder hole formed in the cylinder member, and a swash plate member engaged with the case member.

상기한 실린더 부재의 일측면에는 구면부가 형성되고, 상기한 피스톤 부재와 사판 부재 사이에는 걸림턱을 갖는 슈 부재가 위치하며, 이 슈 부재의 걸림턱에 끼워지고 그 외측면이 실린더 부재의 일측에 형성된 배럴부재와 접촉되도록 이루어지는 탄성 슈 홀더를 제공한다.A spherical surface is formed on one side of the cylinder member, and a shoe member having a locking jaw is positioned between the piston member and the swash plate member, and is fitted to the locking jaw of the shoe member, and an outer surface thereof is located at one side of the cylinder member. It provides an elastic shoe holder made in contact with the formed barrel member.

상기한 슈 홀더는 종래의 슈 홀더와 동일한 기능을 유지하기 위해 기본적인 형상 즉, 중앙부의 홈과 원주상의 배럴부재와의 조립을 위한 홈을 그대로 구비하고, 여기에 탄성기능을 부가한 형태로서 예를 들면 외측면이 탄성을 갖도록 굽혀져 있는 것을 특징으로 한다.In order to maintain the same function as the conventional shoe holder, the shoe holder is provided with a basic shape, that is, a groove for assembling the groove in the center and the barrel member in the circumference, and has an elastic function added thereto. For example, the outer surface is bent to have elasticity.

도 1은 본 고안의 제1실시예에 의한 탄성 슈 홀더가 적용된 유압펌프의 단면도.1 is a cross-sectional view of a hydraulic pump to which the elastic shoe holder according to the first embodiment of the present invention is applied.

도 2a는 본 고안의 제1실시예에 따른 유압펌프의 탄성 슈 홀더의 사시도.Figure 2a is a perspective view of the elastic shoe holder of the hydraulic pump according to the first embodiment of the present invention.

도 2b는 본 고안에 제1실시예에 따른 유압펌프의 탄성 슈 홀더의 정면도.Figure 2b is a front view of the elastic shoe holder of the hydraulic pump according to the first embodiment of the present invention.

도 2c는 본 고안에 제1실시예에 따른 유압펌프의 탄성 슈 홀더의 평면도.Figure 2c is a plan view of the elastic shoe holder of the hydraulic pump according to the first embodiment of the present invention.

도 3a 내지 도3c는 본 고안의 제2실시예에 따른 유압펌프의 탄성 슈 홀더를 도시한 도면.3a to 3c is a view showing an elastic shoe holder of a hydraulic pump according to a second embodiment of the present invention.

도 4는 종래 기술에 의한 유압펌프의 구성을 나타내는 단면도이다.4 is a cross-sectional view showing the configuration of a hydraulic pump according to the prior art.

이하, 본 고안의 바람직한 실시 예를 첨부한 도면을 참조하여 더욱 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail.

도 1은 본 고안에 의한 탄성 슈 홀더가 적용된 유압펌프를 나타내는 단면도로서, 본 고안에 의한 탄성 슈 홀더가 적용된 유압펌프는, 도시되지 않은 구동부재에 의해서 전달되는 회전력을 전달하는 축(2)과, 이 축(2)의 일단을 지지하는 지지홈(4)을 갖추고 중앙부에 원기둥형 홈(6)이 형성되며, 유체가 출입되는 복수개의 유로(8)(10)를 갖는 케이스(12)를 보유하며, 상기한 원기둥형 홈(6)에서 축(2)의 회전력을 전달받아 회전하는 실린더 부재(14)를 포함하고, 이 실린더 부재(14)에는 상기한 축(2)을 중심으로 형성되는 다수의 실린더 홀(16)이 구비된다.1 is a cross-sectional view showing a hydraulic pump to which the elastic shoe holder according to the present invention is applied. The hydraulic pump to which the elastic shoe holder is applied according to the present invention includes a shaft 2 for transmitting a rotational force transmitted by a driving member (not shown). And a case 12 having a support groove 4 for supporting one end of the shaft 2 and having a cylindrical groove 6 at the center thereof, and having a plurality of flow paths 8 and 10 through which fluid enters and exits. And a cylinder member 14 which rotates by receiving the rotational force of the shaft 2 from the cylindrical groove 6, and the cylinder member 14 is formed around the shaft 2. A plurality of cylinder holes 16 are provided.

또, 상기한 케이스(12)에 형성된 유로(8)(10)와 통하는 복수개의 홀(18) 즉, 실린더 부재(14)내에 형성된 실린더 홀(16)의 수와 동일하게 형성되는 홀(18)이 형성되고, 상기한 홈(6)에서 회전 운동하여 회전력을 보유하는 축(2)과 연동하며, 이 회전력을 직선운동으로 전환하여 실질적으로 유압을 발생하는 펌핑수단을 포함한다.Moreover, the holes 18 formed in the same way as the number of the holes 18 communicating with the flow paths 8 and 10 formed in the case 12, that is, the cylinder holes 16 formed in the cylinder member 14, are provided. And a pumping means for interlocking with the shaft 2 which holds the rotational force by rotational movement in the groove 6 and converting the rotational force into a linear movement to generate substantially hydraulic pressure.

상기한 실린더 부재(14)의 일측은 그 외측이 라운드 형상으로 이루어진 구면배럴(20)을 갖도록 형성되는데, 이러한 구면배럴(20)은 종래의 유압펌프에 적용되는 배럴부재의 기능과 동일한 기능을 할 수 있도록 마련되는 부재이다.One side of the cylinder member 14 is formed to have a spherical barrel 20, the outer side of which is formed in a round shape, the spherical barrel 20 can function the same as the function of the barrel member applied to a conventional hydraulic pump. It is a member provided to be.

상기한 펌핑수단은 상기한 실린더 부재(14)의 실린더 홀(16)에서 직선 왕복운동 하는 실린더(22)와, 이 실린더(22)의 일측에 형성되어 회전운동을 직선왕복운동으로 변환하여 전달하는 슈(24)를 포함하며, 상기한 실린더(22)와 슈(24)를 볼 조인트로 연결하여 슈(24)가 사판부재(26)의 경사면(28)을 원활하게 운동할 수 있도록 하는 연결부(30)로 이루어진 피스톤 부재(32)를 포함한다.The pumping means is a cylinder 22 linearly reciprocating in the cylinder hole 16 of the cylinder member 14, and formed on one side of the cylinder 22 to convert the rotational movement into a linear reciprocating movement And a shoe 24, and connecting the cylinder 22 and the shoe 24 by a ball joint so that the shoe 24 can smoothly move the inclined surface 28 of the swash plate member 26 ( 30, a piston member 32.

상기한 슈(24)는 그 중간 부분에 걸림턱(34)이 형성되는데, 이 걸림턱(34)에 소정의 탄성력을 갖는 탄성 슈 홀더(36)가 끼워진다.The shoe 24 has a locking jaw 34 formed at an intermediate portion thereof, and the elastic shoe holder 36 having a predetermined elastic force is fitted into the locking jaw 34.

본 고안의 제1실시예에 의한 탄성 슈 홀더(36)는 도 2a 내지 도 2c에 도시된 바와 같이, 그 중심부에는 상기한 실린더 부재(14)의 구면배럴(20)에 끼워질 수 있는 홀(38)이 형성되고, 이 홀(38)을 중심으로 원주방향으로 굽혀진 형태로 이루어지는 다수의 탄성부(40)가 일체형으로 형성되어 있으며, 이 탄성부(40)들의 각 홀(42)에는 슈(24)에 형성된 걸림턱(34)이 밀착되어 조립된다.The elastic shoe holder 36 according to the first embodiment of the present invention has a hole that can be fitted to the spherical barrel 20 of the cylinder member 14 as shown in FIGS. 2A to 2C. 38 is formed, and a plurality of elastic portions 40 formed in a circumferentially bent shape around the holes 38 are integrally formed. Each of the elastic portions 40 has a shoe in each of the holes 42. The locking step 34 formed in the 24 is tightly assembled.

따라서 상기한 슈(24)의 바닥면이 사판부재(26)의 경사면(28)에 밀착되어 회전하면서 상기한 피스톤 부재(32)가 유체를 원활하게 흡입, 토출할 수 있도록 작용한다.Therefore, while the bottom surface of the shoe 24 is in close contact with the inclined surface 28 of the swash plate member 26, the piston member 32 acts to smoothly suck and discharge the fluid.

그리고 본 고안에 의한 탄성부(40)는 보다 큰 탄성력을 얻을 수 있도록 하기 위하여 외측면(44)이 곡면을 갖도록 제작되는데, 이렇게 탄성부(40)의 외측면(44)을 곡면으로 형성하게되면 각을 이루어서 제작하는 것보다 더욱 큰 탄성력을 얻을 수 있게 된다.In addition, the elastic portion 40 according to the present invention is manufactured to have a curved surface so that the outer surface 44 can obtain a larger elastic force. When the outer surface 44 of the elastic portion 40 is formed into a curved surface, It is possible to obtain a greater elastic force than to produce at an angle.

상기한 바와 같은 탄성 슈 홀더(36)가 적용된 유압펌프는 상기한 축(2)이 실린더 부재(14)로 회전력을 전달하면 상기한 피스톤 부재(32)와 연결부(30)로 결합된 슈(24)가 사판부재(26)의 경사면(28)을 따라 이동하면서 상기한 피스톤 부재(32)에 형성된 실린더(22)가 회전하는 실린더 부재(14)에 포함된 실린더 홀(16)내에서 직선 왕복운동하며, 한쪽의 실린더 홀(16)과 통하는 유로(8)에서 유체를 흡입하고 회전 이동하면서 반대편 유로(10)로 유체를 토출하여 유압을 발생시킨다.The hydraulic pump to which the elastic shoe holder 36 is applied as described above is a shoe 24 coupled to the piston member 32 and the connecting portion 30 when the shaft 2 transmits a rotational force to the cylinder member 14. Linear reciprocating motion in the cylinder hole 16 included in the cylinder member 14, in which the cylinder 22 formed in the piston member 32 rotates while moving along the inclined surface 28 of the swash plate member 26. In addition, the fluid is sucked in the flow passage 8 communicating with one cylinder hole 16 and rotated to discharge the fluid to the opposite flow passage 10 to generate hydraulic pressure.

또 본 고안에 따른 유압펌프의 탄성 슈 홀더의 제2실시예는 도 3a 내지 도3c에 나타낸 바와 같이, 중앙부에 형성되는 홀(45)과, 이 홀(45)의 외주면으로 형성되어 도 1에 도시된 실린더 부재(14)의 구면배럴(20)과 면 접촉될 수 있도록 일정한 곡률을 갖는 구면부(46)와, 이 구면부(46)의 외주연부 원주방향으로 형성되고 홀(47)이 마련된 다수의 평면판(48)으로 이루어진다.In addition, the second embodiment of the elastic shoe holder of the hydraulic pump according to the present invention, as shown in Figures 3a to 3c, is formed with a hole 45 formed in the center portion and the outer peripheral surface of the hole 45 is shown in FIG. The spherical portion 46 has a constant curvature so as to be in surface contact with the spherical barrel 20 of the illustrated cylinder member 14, and the outer circumferential edge of the spherical portion 46 is formed in the circumferential direction and the hole 47 is provided. It consists of a plurality of flat plates 48.

이와 같이 상기한 제2실시예에 의한 탄성 슈 홀더는 구면배럴과 면 접촉하는 구면부(46)는 의 상하 직경이 다르게 형성되고 소정의 곡률을 갖고 있으므로 탄성을 갖게된다.As described above, the elastic shoe holder according to the second embodiment has elasticity because the upper and lower diameters of the spherical portion 46 which are in surface contact with the spherical barrel are formed differently and have a predetermined curvature.

상기한 제2실시예에 있어서도 상기한 구성 이외에는 상기한 제1실시예와 마찬가지로 이루어진다.Also in the second embodiment described above, the same configuration as in the first embodiment is performed except for the above-described configuration.

이상 설명한 바와 같이 본 고안에 의한 유압펌프의 탄성 슈 홀더는 유압펌프에서 사용되는 탄성부재, 핀 부재, 배럴 부재 등이 없어도 탄성 슈 홀더로 상기한 부재들의 모든 기능이 제공되어 유압펌프의 제작비용을 절감할 수 있고, 또한 조립시간이 절약되어 생산성을 향상시킬 수 있다.As described above, the elastic shoe holder of the hydraulic pump according to the present invention is provided with all the functions of the aforementioned members as the elastic shoe holder without the elastic member, pin member, barrel member, etc. used in the hydraulic pump, thereby reducing the manufacturing cost of the hydraulic pump. In addition, the assembly time can be saved and productivity can be improved.

Claims (3)

사판식 유압펌프에 있어서, 실린더 부재에 직접 형성된 구면 혹은 구면 배럴에 접촉될 수 있도록 중앙부에 구면부가 형성되어 있고, 그 원주상으로 피스톤 부재의 슈 부재에 끼워질 수 있도록 홈을 형성시키고 탄성을 갖도록 하기 위해 슈 홀더 전체를 곡면으로 형성하여 자체가 탄성력을 갖도록 형성시킨 것을 특징으로 하는 유압펌프의 탄성 슈 홀더.In the swash plate type hydraulic pump, a spherical portion is formed in the center portion so as to be in contact with a spherical surface or spherical barrel formed directly on the cylinder member, and the groove is formed to be fitted to the shoe member of the piston member so as to be circumferentially and have elasticity. In order to form the entire shoe holder to the curved surface so that the elastic shoe holder of the hydraulic pump, characterized in that formed to have an elastic force. 청구항 1에 있어서, 상기한 슈 홀더는 슈 부재에 끼워질 수 있도록 원주 방향으로 형성된 홈 부분에 탄성을 부가하기 위하여 한번 이상을 굽힘을 주어 탄성부를 형성한 것을 특징으로 하는 유압펌프의 탄성 슈 홀더.The elastic shoe holder of a hydraulic pump according to claim 1, wherein the shoe holder is bent at least once to add elasticity to a groove portion formed in the circumferential direction so that the shoe holder can be fitted to the shoe member. 청구항 1에 있어서, 상기한 슈 홀더는 슈 부재에 끼워질 수 있도록 원주 방향으로 형성된 홈 부분에 탄성을 부가하기 위하여 탄성체를 부착시켜 탄성부를 형성한 것을 특징으로 하는 유압펌프의 탄성 슈 홀더.The elastic shoe holder of a hydraulic pump according to claim 1, wherein the shoe holder is formed by attaching an elastic body to add elasticity to a groove portion formed in the circumferential direction so that the shoe holder can be fitted to the shoe member.
KR2019990000759U 1999-01-21 1999-01-21 Elastic shoe holder of oilhydraulic pump KR19990021863U (en)

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Application Number Priority Date Filing Date Title
KR2019990000759U KR19990021863U (en) 1999-01-21 1999-01-21 Elastic shoe holder of oilhydraulic pump
JP2000595057A JP3375332B2 (en) 1999-01-21 1999-06-10 Hydraulic pump
PCT/KR1999/000286 WO2000043672A1 (en) 1999-01-21 1999-06-10 Hydraulic pump
CNB99801205XA CN1136388C (en) 1999-01-21 1999-06-10 Hydraulic pump
AU41709/99A AU4170999A (en) 1999-01-21 1999-06-10 Hydraulic pump
KR2019990016680U KR200169204Y1 (en) 1999-01-21 1999-08-13 Elastic shoe holder of oil hydraulic pump
US09/441,014 US6352017B1 (en) 1999-01-21 1999-11-16 Hydraulic pump
DE29921501U DE29921501U1 (en) 1999-01-21 1999-11-26 hydraulic pump
JP2002286341A JP2003155973A (en) 1999-01-21 2002-09-30 Hydraulic pump

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Publication number Priority date Publication date Assignee Title
KR100433392B1 (en) * 2002-02-18 2004-05-31 한국기계연구원 Swash plate type axial piston apparatus
KR100734552B1 (en) * 2006-03-13 2007-07-02 전북대학교산학협력단 Oil hydraulic piston pump and retainer for oil hydraulic piston pump

Also Published As

Publication number Publication date
JP2002535552A (en) 2002-10-22
AU4170999A (en) 2000-08-07
CN1286742A (en) 2001-03-07
JP2003155973A (en) 2003-05-30
JP3375332B2 (en) 2003-02-10
WO2000043672A1 (en) 2000-07-27
CN1136388C (en) 2004-01-28
KR200169204Y1 (en) 2000-02-15

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