Teaching experiment desk for setting and diagnosing faults of forklift hydraulic system
A technology of hydraulic system and test bench, which is applied in the field of forklift hydraulic system fault setting and diagnosis teaching test bench, which can solve the problems of being fixed and unable to set and troubleshoot at will
Inactive Publication Date: 2011-02-16
MILITARY TRANSPORTATION UNIV PLA
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art. For example, the fault setting of the existing hydraulic system is fixed, and it is impossible to set and remove the fault as one likes, and to provide a forklift hydraulic system fault setting and Diagnostic teaching laboratory bench
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Embodiment Construction
[0014] The present invention will be further described below in conjunction with the drawings.
[0015] The working principle diagram of the hydraulic system of CPC2 internal combustion forklift is shown as figure 1 Shown: Forklift hydraulic system is composed of oil tank 1, permanent magnet 2, oil filter 3, high pressure gear pump 4 and other hydraulic components connected, the other hydraulic components are monostable diverter valve 5, steering cylinder 6, full hydraulic steering Device 7, descending speed limit valve 8, lifting cylinder 9, tilting cylinder 10 and multi-way valve 11 (composed of tilt control valve, lifting control valve, pilot relief valve and one-way valve). The solid lines in the above figure represent oil circuits or function symbols respectively. The dotted lines in the figure represent the drain circuit or the control circuit respectively.
[0016] The invention is like figure 2 Shown: Forklift hydraulic system is composed of oil tank 1, permanent magnet 2...
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The invention discloses a teaching experiment desk for setting and diagnosing faults of a forklift hydraulic system. The forklift hydraulic system is formed by connecting an oil tank, a permanent magnet, an oil filter, a high-pressure gear pump and other hydraulic elements together, the hydraulic elements are mounted on a soleplate or mounted between the two soleplates which are internally provided with a pore canal, a quick connector is mounted at the outer port of the pore canal, and an internal port is connected with oil holes of the hydraulic elements which are connected through a high-pressure hose with the quick connector. The teaching experiment desk for setting and diagnosing the faults of the forklift hydraulic system of the invention consists of two sets of hydraulic elements which can be spliced rapidly, wherein one set of hydraulic element is completely connected into a hydraulic system, and the other set of hydraulic element has fault.
Description
Technical field [0001] The invention relates to the fault diagnosis teaching field of a forklift hydraulic system, and more specifically, to a fault setting and diagnosis teaching experiment table of a forklift hydraulic system. Background technique [0002] In the teaching of "Construction Machinery Hydraulics and Hydraulic Transmission", the fault diagnosis teaching of the forklift hydraulic system is always a difficult point. The main reason is that teaching methods are limited to theoretical explanations and there is no corresponding experimental teaching. [0003] Forklift hydraulic system fault diagnosis teaching involves complicated and abstract theories. Students only rely on hydraulic schematic diagrams to analyze and diagnose hydraulic system faults. The study only stays on books. It is difficult to establish a connection between theoretical analysis and actual hydraulic system faults. Teaching effect. Therefore, it is very necessary to design the fault setting and diag...
Claims
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IPC IPC(8): G09B25/02
Inventor 苏欣平郭爱东陈锦耀董帅
Owner MILITARY TRANSPORTATION UNIV PLA