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Hydraulic motor fault detection method, device and system and excavator

A hydraulic motor and fault detection technology, which is applied in fluid pressure actuation device, fluid pressure actuation system test, soil mover/shovel, etc., can solve problems such as manual fault detection

Pending Publication Date: 2021-10-15
杭州力龙液压有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a hydraulic motor fault detection method, device, system and excavator to solve the current problem that hydraulic motors need manual fault detection

Method used

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  • Hydraulic motor fault detection method, device and system and excavator
  • Hydraulic motor fault detection method, device and system and excavator
  • Hydraulic motor fault detection method, device and system and excavator

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Embodiment 1

[0022] Embodiment 1 of the present invention provides a hydraulic motor fault detection method. figure 1 It is a schematic flowchart of the hydraulic motor fault detection method in Embodiment 1 of the present invention, such as figure 1 As shown, the hydraulic motor fault detection method in Embodiment 1 of the present invention includes the following steps:

[0023] S101: Respectively acquire actual operation data of each operation characteristic quantity in the hydraulic motor operation characteristic quantity set within a preset time period.

[0024] In Embodiment 1 of the present invention, the operation characteristic quantities in the operation characteristic quantity set include one or more of the following: pressure, rotational speed, and flow rate. Correspondingly, the actual operation data includes one or more of the following: pressure operation data, rotational speed operation data, and flow rate operation data.

[0025] As a specific embodiment, the hydraulic m...

Embodiment 2

[0048] Corresponding to Embodiment 1 of the present invention, Embodiment 2 of the present invention provides a hydraulic motor fault detection device, image 3 It is a schematic structural diagram of the hydraulic motor fault detection device in Embodiment 2 of the present invention, as shown in image 3 As shown, the hydraulic motor fault detection device according to the second embodiment of the present invention includes a first acquisition module 21 , a judgment module 22 , a second acquisition module 23 and a processing module 24 .

[0049] Specifically, the first acquisition module 21 is configured to separately acquire the actual operation data of each operation characteristic quantity in the hydraulic motor operation characteristic quantity set within a preset time period;

[0050] The judgment module 22 is used for judging whether there is faulty operation data in the obtained multiple actual operation data;

[0051] The second acquisition module 23 is configured to...

Embodiment 3

[0055] An embodiment of the present invention further provides a hydraulic motor failure detection system, the hydraulic motor failure detection system includes an operation data detection device and a controller, the operation data detection device and the controller are connected in communication with each other, and the controller Computer instructions are stored in the controller, and the controller executes the fault detection method described in Embodiment 1 of the present invention by executing the computer instructions.

[0056] Specifically, the hydraulic motor is a plunger motor, and the operation data detection device includes a pressure sensor, a rotational speed sensor and a flow sensor; the pressure sensor is used to detect the pressure of the A port, the B port pressure and the T port pressure of the hydraulic motor; The rotational speed sensor is used for detecting the rotational speed of the main shaft of the hydraulic motor; the flow sensor is used for detecti...

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Abstract

The invention discloses a hydraulic motor fault detection method, device and system and an excavator. The hydraulic motor fault detection method comprises the following steps: respectively obtaining actual operation data of each operation characteristic quantity in a hydraulic motor operation characteristic quantity set in a preset time period; judging whether fault operation data exists in the multiple obtained actual operation data or not; when the fault operation data exists, obtaining a fault database, wherein the fault database comprises historical operation data of the operation characteristic quantity corresponding to the fault operation data under each fault; and determining the fault reason of the hydraulic motor according to the fault operation data and the fault database. Therefore, automation of data analysis during fault detection of the hydraulic motor can be realized, so that the efficiency and precision of fault detection are improved, and the labor cost is reduced.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to a hydraulic motor fault detection method, device, system and excavator. Background technique [0002] Hydraulic motor is an important hydraulic component of excavator. The existing hydraulic motor fault detection methods are relatively backward, and most of them require manual fault detection. Manual fault detection of hydraulic motors has the following problems: (1) It is time-consuming and labor-intensive to analyze the cause of the fault after on-site diagnosis by an external hydraulic component engineer or manual disassembly of the test bench failure; (2) It requires hydraulic component engineers to have rich experience It is extremely unfriendly to hydraulic component engineers who have just entered the industry; (3) the fault detection process is easily affected by human factors, and its fault detection accuracy cannot achieve good results. SUMMARY OF THE IN...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00E02F9/22
CPCF15B19/005E02F9/22F15B2211/87
Inventor 陈烜朱睿杨时运
Owner 杭州力龙液压有限公司
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