Abstract:
PURPOSE: An apparatus for generating impulse using hydraulic control pressure is provided to test a tolerance to the internal pressure of various test targets by amplifying initially supplied hydraulic power to superhigh pressure. CONSTITUTION: An apparatus for generating impulse using hydraulic control pressure comprises a hydraulic power generating device (10) and a superhigh pressure generating device (20). The superhigh pressure generating device amplifies internal pressure and discharges hydraulic working fluid to test targets (40) at high pressure, thereby testing a tolerance to the internal pressure of the test targets. [Reference numerals] (AA,BB) Hydraulic operating oil; (AA,BB) Hydraulic operating oil; (CC) Pressure discharge; (DD) Hydraulic power
Abstract:
PURPOSE: An actuator for controlling a turbine valve built in a check valve for a nuclear power plant and a thermoelectric power plant is provided to facilitate discharge of air flowing in the actuator when a hydraulic servo actuator assembles again after maintenance. CONSTITUTION: An actuator for controlling a turbine valve built in a check valve for a nuclear power plant and a thermoelectric power plant comprises a housing(20), a valve spool(30), an elastic member(40), an orifice part(50), a discharge passage(60), and a check valve(10). The housing is installed in a piston head at the bottom of a piston part installed inside a hydraulic cylinder. The valve spool ascends and descends with hydraulic oil. The elastic member is compressed and sealed by the valve spool. The orifice part is communicated with an internal intake hole(31) of the valve spool. The discharge passage is formed in the housing so that communication with the orifice part can be controlled according to ascent or descent of the valve spool. The check valve discharges air with the hydraulic oil to block the discharge passage of the air and the hydraulic oil or serve as an orifice.
Abstract:
본 발명은 유중형 서보 모터 구동방식 축 일체형 파워 팩에 관한 것으로, 더욱 상세하게는 구동원으로서 서보 모터를 채택함으로써 소비전력 절감은 물론 서보 모터의 회전축과 유압 피스톤 펌프의 회전축을 분리형이 아닌 일체형으로 하여 내부구조를 단순화시키고 냉각기를 두어 내부의 열을 감소시킴으로써 전체적인 외형을 컴팩트화시킨 일체형 파워 팩에 대한 것이다. 본 발명의 일실시예에 따른 유중형 서보 모터 구동방식 축 일체형 파워 팩은, 회전자와 고정자로 구성되는 서보 모터; 상기 회전자의 서보 모터측 회전축과 일체로 연결되는 피스톤 펌프측 회전축에 연결되어 피스톤의 왕복운동 동작에 따라 작동 유체를 흡입 또는 토출하는 피스톤 펌프; 상기 서보 모터 및 피스톤 펌프의 동작에 따라 가열된 작동 유체를 냉각시키는 냉각기; 및 상기 피스톤 펌프에 상기 작동 유체를 공급하거나 상기 피스톤 펌프로부터 발생된 유압 에너지를 외부로 토출하는 매니폴드 블록을 포함한다. 본 발명에 따르면, 구동원으로서 서보 모터를 채택함으로써 소비전력을 절감할 수 있는 효과를 얻을 수 있다.
Abstract:
PURPOSE: A bent axial type static hydraulic transmission is provided to be configured to include the advantages of a conventional bent axial type static hydraulic transmission and of a swash plate type static hydraulic transmission, thereby improving transmission efficiency. CONSTITUTION: A bent axis type hydraulic pump (200) is connected to an input shaft. The bent axis type hydraulic pump varies the inclination of a rotary shaft. A bent axial type hydraulic motor (300) delivers rotatory power to an output shaft. A control block (400) forms a hydraulic closed circuit. A piston is equipped inside the bent axis type hydraulic pump and the bent axis type hydraulic motor.
Abstract:
본 발명은 클러치 성능시험 장치에 관한 것이다. 본 발명의 클러치 성능시험 장치는, 클러치 고정자의 회전시 함께 회전하도록 클러치의 고정자와 분리, 결합 가능하도록 되어 있는 클러치고정자연결축; 회전자의 회전시 함께 회전하도록 클러치의 회전자와 분리, 결합 가능하도록 되어 있고, 모터와 연결 가능하도록 되어 있는 클러치회전자연결축; 클러치고정자연결축이 회전 가능하도록 설치되어 있는 하우징의 제1몸체; 클러치회전자연결축이 회전 가능하도록 설치되어 있되 하우징의 제1몸체에 설치된 클러치고정자연결축과 연결상태에 있는 클러치의 고정자와 클러치회전자연결축에 연결된 상태에 있는 클러치의 회전자가 연결되거나 연결상태가 해제될 수 있도록 클러치고정자연결축과 일직선상에서 클러치고정자연결축 방향으로 전, 후진하도록 설치되어 있는 하우징의 제2몸체; 하우징의 제1몸체에 설치된 클러치고정자연결축이 회전되도록 할 수도 있고 회전되지 않도록 할 수도 있는 회전방지체;를 포함하여 구성된다.
Abstract:
PURPOSE: A performance and durability simulator of a bicycle is provided to apply the condition when bicycle actually travels. CONSTITUTION: A performance and durability simulator of a bicycle comprises a mainframe(110), a base frame(120), a holder(121), a first roller unit(130) and a second roller unit(140). The mainframe is the sheet form. The base frame is supported with the mainframe. The base frame locates in the mainframe upper surface. The holder is included in the base frame. The holder supports a bicycle(10) to the upper surface of the base frame. The first roller unit and the second roller unit respectively support a back wheel(11) and a nose wheel(12) of a bicycle.
Abstract:
PURPOSE: A gap measuring apparatus and method for a worm shaft bearing are provided to measure a gap between the inner and outer races of a bearing caused by an abrasion or machining tolerance. CONSTITUTION: A gap measuring apparatus for a worm shaft bearing comprises a bearing housing(200), a snap ring(300), a spring(400), a measurement block(500), an upper block(600), a lower block(700), and a micro meter part(800). The bearing housing has a cylindrical hollow in which a worm shaft(100) is inserted in a longitudinal direction and a stepped portion in which one side of a first bearing(130) is placed. The snap ring is fixed to the interior of the bearing housing to fix the outer race of the first bearing. The spring is inserted into the bearing housing and supports one side of the worm shaft in which a second bearing(140) is installed. The measurement block is coupled to one side of the worm shaft in which the first bearing is installed to make one side of the worm shaft flat. The upper block has a hollow to receive the measurement block, and the upper block is coupled and fixed to one side of the bearing housing. The lower block is coupled and fixed to the other side of the bearing housing. The micro meter part is inserted in the upper block and contacts one side of the measurement block.