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Hydraulic test rigs larger container and high pressure on the cycle life

机译：液压试验台更大的容器和较高的循环寿命

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FIELD: machine building.;SUBSTANCE: test bench consists of controller, of pressure control device, output of which is connected to corresponding input of controller, and of main pump kinematically tied with flywheel and electric engine. The main pump corresponds to a reverse controlled motor-pump with proportional electric control. An electric input of the control unit of this pump is connected to the corresponding output of the controller. Working chambers of the main pump are coupled with two hydraulic lines equipped with two pressure gauges connected to the lines. Outputs of the pressure gauges are connected to the corresponding inputs of the controller. Further, the test bench consists of an auxiliary pump, one working channel of which is communicated with a hydraulic tank, while the second working channel is communicated with a pressure safety valve equipped with proportional electric control. Also, an electric output of this valve is tied with the corresponding output of the controller. A channel of the hydraulic device is coupled with the second channel of the auxiliary pump. Each of two channels is connected to the said corresponding hydraulic lines. The pressure safety valve is joined with these hydraulic lines via back valves. A bleed valve of the pressure safety valve is connected to the hydraulic tank. The test bench additionally consists of a double-action piston hydro-cylinder with two similar rods, of two similar plunger hydro-cylinders and of an additional pump with its own electric engine and a pressure safety valve. An input channel of the additional pump is connected with a water tank, while an output channel is connected to cavities of both plunger hydro-cylinders via shutoff valves and is connected with two simultaneously tested tanks, to which there are connected the pressure gauges, outputs of which are communicated with corresponding inputs of the controller. Both hydraulic lines of the test bench connected to working channels of the main pump are coupled with the pressure gauges and with both cavities of the double-action piston hydro-cylinder equipped with two similar rods. This hydro-cylinder is positioned between two similar plunger hydro-cylinders, the plungers of which are directly joined with both similar rods of the double-action piston hydro-cylinder.;EFFECT: expanded functionality of test bench, reduced power consumption, its increased durability and raised ecological safety.;1 dwg
机译：领域：机械制造;内容：试验台由控制器，压力控制装置组成，压力输出装置的输出连接到控制器的相应输入，并且运动学上与飞轮和电动机捆绑在一起的主泵。主泵对应于具有比例电控的反向控制电动机泵。该泵控制单元的电气输入端与控制器的相应输出端相连。主泵的工作腔与两条液压管路连接，两条液压管路配备有连接到管路上的两个压力计。压力表的输出连接到控制器的相应输入。此外，试验台由一台辅助泵组成，其一个工作通道与一个液压油箱连通，而第二个工作通道与一个装有比例电控装置的压力安全阀连通。而且，该阀的电输出与控制器的相应输出绑定在一起。液压装置的通道与辅助泵的第二通道联接。两个通道中的每一个均连接至所述相应的液压管路。压力安全阀通过回油阀与这些液压管路连接。压力安全阀的放气阀连接到液压油箱。该试验台还包括一个带有两个相似杆的双作用活塞式液压缸，两个相似的柱塞式液压缸以及一个带有自己的电动发动机和压力安全阀的附加泵。附加泵的输入通道与水箱连接，而输出通道通过截止阀与两个柱塞液压缸的腔体连接，并与两个同时测试的水箱连接，压力表，输出口与该水箱连接。其中的一个与控制器的相应输入通信。连接到主泵工作通道的试验台的两条液压管路均与压力表相连，并与配备有两个类似杆的双作用活塞式液压缸的两个腔体相连。该液压缸位于两个相似的柱塞液压缸之间，其柱塞直接与双作用活塞液压缸的两个相似的杆相连。耐用性和提高的生态安全性; 1 dwg

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