A double-acting hydraulic pump bench test control system for an engine
A hydraulic pump and double-acting technology, which is applied in the field of control system and hydraulic control system, can solve the problems of hydraulic system vibration, inappropriate action, loud noise, etc., and achieve the effect of compact layout, convenient installation and high integration
Active Publication Date: 2016-03-16
CHINA FIRST AUTOMOBILE
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Problems solved by technology
[0004] In view of the above situation, the working process of the hydraulic pump bench test control system on the whole vehicle is simulated, mainly to solve the reliability of the hydraulic pump of the engine and the whole vehicle, and to avoid the operation error when the power output of the hydraulic pump is generated during the matching process of the engine and the whole vehicle. In place, the hydraulic system vibrates, the noise is loud, and problems such as crawling occur during work
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[0017] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:
[0018] Such as figure 1 As shown, it includes oil tank 1, first filter 2, first flow meter 3, first hydraulic pump 4, first pressure gauge 5, first bypass solenoid valve 6, first pressure regulating and relief valve 7, second Filter 8, second flow meter 9, second hydraulic pump 10, second pressure gauge 11, second bypass solenoid valve 12, second pressure regulating and overflow valve 13, heat exchanger 14 and pipelines, etc. The oil tank 1 is respectively provided with a first valve assembly 1-1, a second valve assembly 1-2 and a third valve assembly 1-3.
[0019] The heat exchanger 14 is connected to the first valve assembly 1-1 on the oil tank 1 through a pipeline, and the second valve assembly 1-2 on the oil tank 1 is connected to the first filter 2 and the first flow meter 3 in sequence through the pipeline. , the first hydraulic pump 4, and the...
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The invention relates to a bench test control system for an engine double-acting hydraulic pump. The bench test control system for the engine double-acting hydraulic pump comprises an oil tank and a heat exchanger, wherein the heat exchanger is connected with the oil tank through a pipeline, the oil tank is connected with a first filer, a first flowmeter, a first hydraulic pump and a first by-pass solenoid valve in sequence through pipelines, the first by-pass solenoid valve is respectively connected with a first pressure-adjusting overflow valve and the heat exchanger through pipelines, the oil tank is connected with a second filter, a second flowmeter, a second hydraulic pump and a second by-pass solenoid valve in sequence through pipelines, and the second by-pass solenoid valve is respectively connected with a second pressure-adjusting overflow valve and the heat exchanger through pipelines. The bench test control system for the engine double-acting hydraulic pump can effectively utilize the power of an engine, and simulates the work state mode of the double-acting hydraulic pump on a whole car on a test bench by adjusting the work pressure of the hydraulic pumps, thereby improving the work reliability of the hydraulic pump, and meanwhile examining the bearing capacity of the engine.
Description
technical field [0001] The invention relates to a control system, in particular to a bench test control system for a double-acting hydraulic pump of an engine, which can solve the problem of the reliability of the hydraulic pump of the whole vehicle of the engine, and at the same time, take into account the assessment of the carrying capacity of the engine. It belongs to the technical field of hydraulic control systems. Background technique [0002] At present, the agricultural machinery market is booming, especially the market share of the new combine harvester is increasing steadily. The mechanical transmission mechanism used in the past has gradually adopted a reliable hydraulic transmission mode, thus putting forward new requirements for the performance of the hydraulic pump for the auxiliary output of the engine. higher requirement. [0003] According to the change of the working pressure and flow rate of the hydraulic pump under different speed conditions, through the...
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IPC IPC(8): F04B51/00F15B21/00F15B21/04
Inventor 吴志明张跃华周雄
Owner CHINA FIRST AUTOMOBILE