KR890003749Y1

KR890003749Y1 - Oil pressure jack

Info

Publication number: KR890003749Y1
Application number: KR2019860008029U
Authority: KR
Inventors: 김정배
Original assignee: 주식회사 수성산업운반기계; 김정배
Priority date: 1986-06-05
Filing date: 1986-06-05
Publication date: 1989-06-02
Also published as: KR880000783U

Abstract

내용 없음.No content.

Description

Hydraulic Jack of Hydraulic Jack

제1도는 본 고안의 작용단면도로서, 제1(a)도는 제1단계 램의 상승작용도이고, 제1(b)도는 제2단계 램의 상승작용도.1 is a cross-sectional view of the operation of the present invention, the first (a) is a synergy of the first stage ram, the first (b) is a synergy of the second stage ram.

제2도는 본 고안을 응용한 유압잭의 사시도.2 is a perspective view of a hydraulic jack to which the present invention is applied.

제3도는 제1도의 "A"부 확대도이다.FIG. 3 is an enlarged view of portion “A” of FIG. 1.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11 : 스프링 지지관 12 : 스피링11: spring support tube 12: spring

13 : 볼 14 : 볼 지지관13 ball 14 ball support tube

V₁, V₂, V₃, V₄: 제1, 2, 3, 4 제어밸브 I₁, I₂: 급유로V ₁ , V ₂ , V ₃ , V ₄ : 1st, 2, 3, 4 control valves I ₁ , I ₂ : Oil passage

O₁, O₂: 송유로O ₁ , O ₂ : Oil pipeline

본 고안은 통상의 유압에 의하여 유압잭의 램을 상승케함에 있어서, 송유로와 금유로내에 각기 같은 기능을 갖는 2조의 제어밸브를 구성하여 오일의 흐름 방향을 각각 다르게 부설하여 줌으로서 조작레버의 왕복작동시 오일잭에 유압이 항시 가해지도록 하여 유압잭의 램을 계속하여 상승케하여 유압잭에 유압공급 장치에 관한 것이다.The present invention provides two sets of control valves having the same function in the oil channel and the gold channel in raising the ram of the hydraulic jack by the normal hydraulic pressure, and thus the oil flow direction is laid differently to reciprocate the operating lever. It is related with the hydraulic supply device to the hydraulic jack by continually raising the ram of the hydraulic jack so that the hydraulic jack is always applied to the oil jack during operation.

종래에는 조작레버가 1왕복을 하여도 전진시에만 유압이 발생되고, 후퇴시에는 유압이 발생되지 않아 이를 각종 산업기기에 이용함에 있어서, 필요 높이만큼 램을 상승시키려면, 이에 따른 체력의 소모가 상당하고 또 장시간이 소요됨에 따라 사용자의 피로가, 가중될 뿐 아니라, 작업능률의 저하를 초래하였던 것이다.Conventionally, even when the operation lever makes one round trip, hydraulic pressure is generated only when moving forward, and hydraulic pressure is not generated when retracting. Therefore, in order to use it in various industrial equipment, in order to raise the ram by the required height, the consumption of physical strength is increased accordingly. As a considerable and long time was taken, not only was the user's fatigue, but also the work efficiency was deteriorated.

본 고안은 이와 같은 결점을 해소하기 위하여 안출한 것으로서, 조작레버의 왕복작동시 피스톤이 진퇴되면서, 각 제어밸브의 작용에 의하여 항시 유압이 발생케 되어 계속된 램의 상승작용을 가져옴으로서 신속한 작업을 행할 수 있도록 안출된 것으로, 이하 본 고안을 첨부도면에 의거 상세히 설명하면 다음과 같다.The present invention was devised to solve the above-mentioned drawbacks. As the piston retreats during the reciprocating operation of the control lever, hydraulic pressure is always generated by the action of each control valve, resulting in the continuous operation of the ram, resulting in rapid operation. When devised to be carried out, the present invention will be described in detail based on the accompanying drawings as follows.

실린더(1) 내에 유압실(10)에 피스톤(2)이 왕복하여 오일탱크(9)의 오일(100)을 공급받아 유압을 발생시켜 실린더(1)와 연설된 오일잭(4)의 램(5)을 승강작동케함에 있어서, 상기 실린더(1)의 전방측에 제1송유로 (O₁)와 연통되게 스프링(12)에 탄접되어 통로로 개폐케하는 볼(13)이 내설된 제1제어밸브(V₁) 및, 제1급유로(I₁)와 연통되게 제1제어밸브(V₁)와는 반대방향으로 구성하여서 된 제2제어밸브(V₂)를 구성하고, 실린더(1)의 후방측에는 제2송유로(O₂)와 연통되게 제1제어밸브(V₁)와 동일한 구성의 제3제어밸브(V₃) 및 제1급유로(I₂)와 연통되게 제3제어밸브(V₃)와 반대방향으로, 구성된 제4제어밸브(V₄)를 각기 오일(100)의 흐름방향으로 달리하여 부설 한다.The piston 2 is reciprocated to the hydraulic chamber 10 in the cylinder 1 to supply the oil 100 of the oil tank 9 to generate hydraulic pressure, and thus the ram of the oil jack 4 extended from the cylinder 1 ( In the elevating operation of 5), a first ball having a ball 13 in contact with the spring 12 to open and close the passage is in communication with the first oil passage O ₁ on the front side of the cylinder 1. The control valve (V ₁ ) and the second control valve (V ₂ ) constituted in a direction opposite to the first control valve (V ₁ ) in communication with the first oil supply passage (I ₁ ) constitute a cylinder (1). At the rear side of the third control valve (V ₃ ) and the third control valve (I ₂ ) of the same configuration as the first control valve (V ₁ ) in communication with the second flow path (O ₂ ) In the opposite direction to (V ₃ ), the configured fourth control valve (V ₄ ) is laid differently in the flow direction of the oil (100), respectively.

즉, 각 제어밸브(V₁)(V₃)는 정방향(V₂)(V₄)는 이의 역방향으로 스프링 지지관(11)과 볼 지지관(14)의 내부에 볼(13)을 스프링(12)으로 탄설하여서 된 것이다.That is, each control valve (V ₁ ) (V ₃ ) is in the forward direction (V ₂ ) (V ₄ ) in the reverse direction of the spring support tube 11 and the ball support tube 14 inside the spring 13 ( It was made by coaling with 12).

도면중 미설명 부호 3은 조작레버이고, 6,6'는 연결간, 7은 지축, 8,8'은 해제보울트이다.In the figure, reference numeral 3 denotes an operation lever, 6,6 'is a connection, 7 is an axis, and 8,8' is a release bolt.

이와 같이 된 본 고안장치는 도면의 제2도에서와 같이 조작레버(3)를 왕복작동하면 연결간(6)(6')과 연설된 피스톤(2)이 지축(7)에 의해 유압실(10) 내부를 진퇴작동하며 오일잭(4)의 램(5)을 상승시키게 되는데 이때 도면의 제1(a)도와 같이 피스톤(2)이 전진시에는 제3도에서와 같이 제1제어밸브(V₁)가 열려지며 오일(100)이 제1송유로 (O₁)를 통해 오일잭(4)으로 압송되어 램(5)이 상승됨과 동시에 제3제어밸브(V₃)는 닫히고, 제4제어밸브(V₄)가 열려지며 오일탱크(9)로 부터 제2급유로(I₂)를 통해 유압실(10)내로 오일(100)이 공급된다.In the device of the present invention, as shown in FIG. 2, when the operation lever 3 is reciprocally operated, the connecting rod 6, 6 'and the extended piston 2 are supported by the hydraulic shaft 7 by the support shaft 7. 10) When the piston 2 is moved forward as shown in FIG. 1 (a) of the drawing, as shown in FIG. 1 (a), the first control valve ( V ₁ ) is opened and the oil 100 is pumped through the first oil passage O ₁ to the oil jack 4 so that the ram 5 is raised and the third control valve V ₃ is closed. The control valve V ₄ is opened and the oil 100 is supplied from the oil tank 9 into the hydraulic chamber 10 through the second oil supply passage I ₂ .

또한 피스톤(2)이 후퇴할 시는 도면의 제2(b)도와 같이 (a)도에서의 작용과는 반대로 제3제어밸브(V₃)는 열려지고 제4제어밸브(V₄)는 닫혀져서, 압송된 오일(100)이 제2송유로(O₂)를 통하여 램(5)을 상승시키고 반대로 제1제어밸브(V₁)는 닫혀지고, 제2제어밸브(V₂)는 열리어 오일 탱크(9)로 부터 제1급유로(I₁)를 통하여 유압실(10)내로 오일(100)이 공급되는 것이다.In addition, when the piston 2 retreats, the third control valve V ₃ is opened and the fourth control valve V ₄ is closed, as opposed to the action in FIG. Lowered, the pressurized oil 100 raises the ram 5 through the second oil passage O ₂ , on the contrary, the first control valve V ₁ is closed, and the second control valve V ₂ is opened. from the oil tank (9) to which oil 100 is supplied into the oil pressure chamber 10 through the (I ₁₎ to the first fuel supply.

작업 후 램(5)을 하강시키기 위해서는 통상적인 방법으로 해제보울트(8)(8')를 조작하여 유압을 해제시켜주면 되는 것이다.In order to lower the ram 5 after the operation, the release bolts 8 and 8 'may be operated in a conventional manner to release the hydraulic pressure.

따라서, 본 고안는 조작레버가 왕복작동시 항상 유압이 발생되어 신속하게 램이 상승작동되도록 하여 모든 작업을 적은 힘으로 신속, 원활하게 수행할 수 있는 것이어서 사용자에게 매우 실용적인 효과를 제공케되는 것이다.Therefore, the present invention is that the hydraulic lever is always generated when the operation lever is reciprocating operation so that the ram can be quickly operated, so that all operations can be performed quickly and smoothly with little force, thereby providing a very practical effect to the user.

Claims

The first and second control valves V ₁ and V ₂ , which are opened and closed by a ball 13 in contact with the spring 12 on one side of the cylinder 1, communicate with the oil jack 4. In the ordinary ones respectively installed in the first oil passage (I ₁ ) connected to the oil passage (O ₁ ) and the oil tank (9), the rear of the cylinder (1) is connected to the first oil passage (O ₁ ) 2 equal to the oil feed to the (O ₂₎ and a first fuel supply (I ₁₎ and the electric first and second control valves (V ₁₎ (V ₂₎ first to form a (I ₂₎ to the second fuel supply to the inside thereof is connected Hydraulic supply device of the hydraulic jack, characterized in that configured to constitute a third, fourth control valve (V ₃ ) (V ₄ ).