A pressure accumulator assembly for helicopter rotor brake
A helicopter rotor and pressure accumulator technology, applied in the field of brake combination valves, can solve the problems of low integration and bulky volume, and achieve the effect of high integration and small volume
Active Publication Date: 2018-06-26
CHINA HELICOPTER RES & DEV INST
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Problems solved by technology
[0002] The functions of the rotor brake pressure accumulator assembly device are: 1. Store hydraulic energy for the helicopter brake system; 2. Control the on-off of the rotor brake oil circuit, control the dynamic brake, static brake and loose brake of the rotor; 3. Transmit the pressure signal of the brake hydraulic system And the rotor brake safety valve provides an alarm signal at the braking position. The difficulty of its design lies in the integration of the device and the rapid response capability. This device directly affects whether the rotor can complete the braking and the braking performance. The existing rotor brake valve for helicopters has integration The degree is not high, the volume is insufficient
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[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0014] Such as figure 2 The shown brake pressure accumulator 2 is fixed on the housing 16 with 4 bolts in the plate connection mode, and its structure is a piston type pressure accumulator, which is divided into two independent air and liquid chambers by the piston, and the air chamber is pre-filled with about 8MPa Nitrogen for industrial use, the charging connector 10 is fixed on the charging pressure gauge 1 through thread connection, the charging pressure gauge 1 is fixed on the brake pressure accumulator 2 through thread connection and connected with the brake pressure accumulator 2 air cavity, the wheel brake The pressure supply interface 9 is fixed on the brake pressure accumulator 2 through threaded connection, the brake pressure signal device 5 is screwed on the housing 16 through the threaded connection, the rotor brake safety valve 7 and the rotor ...
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The invention relates to design of a hydraulic system of a helicopter rotor wing brake, relates to a brake combination valve for the helicopter rotor wing brake, and is an important component of a rotor wing brake. A pressure accumulator assembly for the helicopter rotor wing brake comprises an inflating pressure gauge (1), a brake pressure accumulator (2), a first one-way valve (3), a second one-way valve (4), a brake pressure annunciator (5), a rotor wing brake valve (6), a rotor wing brake safety valve (7), a rotor wing brake pressure feeding interface (8), a machine wheel brake pressure feeding interface (9), an inflating connector (10), an assisting electric pump pressure feeding interface (11), and a hand pump pressure feeding interface (12). A combination valve module for the rotor wing brake can meet the performance requirements for the rotor wing brake, the combination valve module is used as an accessory of the hydraulic system of a helicopter, under the premise that the combination valve module is high in integration level and low in size, the rapidity of the rotor wing brake can be achieved, and the requirements of the rotor wing brake can be met.
Description
Technical field: [0001] The invention relates to the design of a helicopter rotor brake hydraulic system, in particular to a brake combination valve used for the helicopter rotor brake, which is an important component of the rotor brake. Background technique: [0002] The functions of the rotor brake pressure accumulator assembly device are: 1. Store hydraulic energy for the helicopter brake system; 2. Control the on-off of the rotor brake oil circuit, control the dynamic brake, static brake and loose brake of the rotor; 3. Transmit the pressure signal of the brake hydraulic system And the rotor brake safety valve provides an alarm signal at the braking position. The difficulty of its design lies in the integration of the device and the rapid response capability. This device directly affects whether the rotor can complete the braking and the braking performance. The existing rotor brake valve for helicopters has integration The degree is not high, and the volume is insuffici...
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IPC IPC(8): B64C27/64
Inventor 贺国洋刘芳杨忠黄胜谭伦程雄付建新任永亮陈国鹏杨思睿张润泽刘瑞杰鲍嘉枫张欣张晓娟卢宝镇
Owner CHINA HELICOPTER RES & DEV INST