Micro pile drilling machine electro-hydraulic system diagnosis method and device

Abstract

The invention provides a micro pile drilling machine electro-hydraulic system diagnosis method and device, the device comprises a hydraulic system and a fault analysis and diagnosis module, the hydraulic system comprises a pump set, a valve set, an actuator, a filtering system, a cooling system and an oil pollution degree sensor, the fault analysis and diagnosis module comprises a diagnosis display module, an analysis and diagnosis program module and a sensor signal module. According to the invention, active fault diagnosis of key hydraulic and mechanical elements of the micro pile drilling machine can be facilitated; the working parameters of the micro pile drilling machine can be judged in real time, the abnormal description of the system can be diagnosed in time, and an operator can correctly use the micro pile drilling machine; the reliability of the micro pile drilling machine system is improved, the service life of key components is prolonged, and convenient maintenance of equipment is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic control systems, and in particular relates to a diagnostic method and device for an electro-hydraulic system of a micro pile drilling rig. Background Art

[0002] At present, the fault diagnosis of micro pile drilling rigs is generally carried out through the hydraulic instruments, valve indicator lights, and electrical indicator lights of the hydraulic system of the micro pile drilling rig to display the basic parameters of the hydraulic system. The operator determines the hydraulic system failure based on the experience parameters, and is unable to analyze and judge some deeper hydraulic failures. The experience requirements for the operator are also relatively high. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a method and device for diagnosing the electro-hydraulic system of a micro pile drilling rig, wherein sensors are arranged at key positions of the hydraulic system of the micro pile drilling rig to detect the basic working parameters of the hydraulic system of the drilling rig. The data analysis device can compare the collected data with the standard test data to diagnose abnormal parameters in the hydraulic system.

[0004] In order to achieve the above-mentioned purpose of the present invention, the present invention adopts the following technical scheme: A micro pile drilling rig electro-hydraulic system diagnostic device includes a hydraulic system and a fault analysis and diagnosis module. The hydraulic system includes a pump group, a valve group, an actuator, a filter system, a cooling system, and an oil contamination sensor. The fault analysis and diagnosis module includes a diagnostic display module, an analysis and diagnosis program module, and a sensor signal module.

[0005] The micro-pile drilling rig electro-hydraulic system diagnostic device, the pump group is connected to the valve group, the valve group is connected to the actuator, the valve group is also connected to the filtration system, the filtration system is connected to the cooling system, and the filtration system is provided with an oil contamination sensor; the diagnostic display module is connected to the analysis and diagnosis program module, and the analysis and diagnosis program module is connected to the sensor signal module.

[0006] In the micro-pile drilling rig electro-hydraulic system diagnostic device, the pump group is provided with a pump port pressure sensor.

[0007] The micro-pile drilling rig electro-hydraulic system diagnostic device, the valve group is provided with multi-way valve plates, reversing feedback switches for each valve, and a valve group pressure sensor.

[0008] In the micro-pile drilling rig electro-hydraulic system diagnostic device, the cooling system is provided with an oil temperature sensor.

[0009] The electro-hydraulic system diagnostic device for a micro-pile drilling rig, wherein the actuator comprises a drill arm propulsion cylinder and is provided with a cylinder displacement sensor.

[0010] In the micro-pile drilling rig electro-hydraulic system diagnostic device, the signals received by the sensor signal module include pressure signals, valve status signals, cylinder displacement signals, temperature signals, and oil contamination signals.

[0011] The micro-pile drilling rig electro-hydraulic system diagnostic device, the analysis and diagnosis program module includes multiple sub-program modules: a sensor self-diagnosis program module, a working parameter abnormality diagnosis module, an execution abnormality alarm module, and a specified working condition comparison diagnosis module.

[0012] A method for diagnosing the electro-hydraulic system of a micro-pile drilling rig using the device comprises the following steps: each sensor transmits the working parameter signal of the hydraulic system to the analysis and diagnosis program module, and the analysis and diagnosis program module performs analysis and calculation in each subprogram module to generate a specific diagnosis result.

[0013] A method for diagnosing an electro-hydraulic system of a micro-pile drilling rig using the device, wherein a sensor self-diagnosis program module can determine in real time whether each sensor is in a normal working state; a working parameter abnormality diagnosis module can analyze and diagnose abnormal working parameters of the system according to various operating instructions and feedback parameters of the actuator, and perform diagnostic analysis on the abnormal parameters; a specified working condition comparison diagnosis module can analyze specific working conditions of the micro-pile drilling rig, and the diagnostic analysis results can determine the fault conditions of the micro-pile drilling rig and specific components; an execution abnormality alarm module can issue specific alarm information; and a diagnostic display module can display the diagnostic results in real time.

[0014] The beneficial effects of the present invention are as follows: the present invention proposes for the first time a diagnostic method and device for the hydraulic system of a micro pile drilling rig; it proposes for the first time a designated working condition comparison diagnostic analysis function, which can be beneficial for active fault diagnosis of key hydraulic and mechanical components of the micro pile drilling rig; the analysis and diagnosis module of the present invention can determine the working parameters of the micro pile drilling rig in real time, and promptly diagnose the abnormality of the system, which is beneficial for operators to correctly use the micro pile drilling rig; the present invention improves the reliability of the micro pile drilling rig system, increases the life of key components, and is also beneficial for convenient maintenance of the equipment; the present invention can be used not only for micro pile drilling rigs, but also for other types of drilling rigs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the hydraulic system composition of the present invention; Figure 2 This is a schematic diagram of a fault analysis and diagnosis module of the present invention; Figure 3 A schematic diagram of a program framework of a sensor self-diagnosis program module of the present invention; Figure 4 It is a schematic diagram of the program framework of the working parameter abnormality diagnosis module of the present invention; Figure 5A schematic diagram of the program framework of the execution abnormality alarm module of the present invention; Figure 6 It is a schematic diagram of the program framework of the specified working condition comparison diagnosis module of the present invention; In the figure: 100—hydraulic system; 200—fault analysis and diagnosis module.

[0016] 1001—Pump group; 1002—Valve group; 1003—Actuator; 1004—Filter system; 1005— Cooling system; 1007—Cylinder displacement sensor.

[0017] 100201—Valve reversing feedback sensor; 100202—Valve group pressure sensor; 100203—Pump port Pressure sensor; 100401—Oil contamination sensor; 1006—Oil temperature sensor.

[0018] 2001—Diagnostic display module; 2002—Analysis and diagnostic program module; 2003—Sensor signal Number module.

[0019] 200201—Sensor self-diagnosis program module; 200202—Working parameter abnormality diagnosis module; 200203—Execute abnormal alarm module; 200204—Specify working condition comparison diagnosis module.

[0020] 2003—Sensor signal module includes 100202—Valve group pressure sensor; 100203—Pump port pressure sensor Force sensor; 1000401—Oil contamination sensor; 1007—Cylinder displacement sensor Signal. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings.

[0022] The present invention provides a micro pile drilling machine electro-hydraulic system diagnostic device, comprising a hydraulic system 100 and a fault analysis and diagnosis module 200. Figure 1 As shown, the hydraulic system 100 includes a pump group 1001, a valve group 1002, an actuator 1003, a filter system 1004, a cooling system 1005, and an oil contamination sensor 100401. Figure 2 As shown, the fault analysis and diagnosis module 200 includes a diagnosis display module 2001 , an analysis and diagnosis program module 2002 , and a sensor signal module 2003 .

[0023] Specifically, Figure 1As shown, the pump group 1001 is connected to the valve group 1002, the valve group 1002 is connected to the actuator 1003, the valve group 1002 is also connected to the filter system 1004, the filter system 1004 is connected to the cooling system 1005, the filter system 1004 is provided with an oil contamination sensor 100401, the pump group 1001 is provided with a pump port pressure sensor 100203, the valve group 1002 is provided with a multi-way valve plate, each valve reversing feedback switch, a valve group pressure sensor 100202, the cooling system 1005 is provided with an oil temperature sensor 1006, the actuator 1003 includes a drill arm propulsion cylinder, and is provided with a cylinder displacement sensor 1007, as shown in FIG. Figure 2 As shown, the diagnostic display module 2001 is connected to the analysis and diagnosis program module 2002, and the analysis and diagnosis program module 2002 is connected to the sensor signal module 2003, and they are connected and communicated using electrical cables. The signals received by the sensor signal module 2003 include pressure signals, valve state signals, cylinder displacement signals, temperature signals, and oil contamination signals. The analysis and diagnosis program module 2002 includes multiple subprogram modules: sensor self-diagnosis program module 200201, working parameter abnormality diagnosis module 200202, execution abnormality alarm module 200203, and specified working condition comparison diagnosis module 200204.

[0024] like Figure 3 As shown, the sensor self-diagnosis program module 200201 executes the following functions in sequence according to a certain program logic: system startup, sensor power supply detection, and sensor status polling; Figure 4 As shown, the abnormal working parameter diagnosis module 200202 calculates the characteristic data values ​​of the working pressure, propulsion force, rotation speed, and propulsion speed, including the limit value, fluctuation value, and whether the mode value under a certain working mode is in an abnormal state; Figure 5 As shown, the abnormal execution alarm module 200203 will monitor the status of each valve actuator. Once the control command value of the control valve deviates greatly from the feedback command value, an alarm will be issued. If the values ​​of the oil contamination sensor 100401 and the oil temperature sensor 1006 of the hydraulic system 100 are abnormal, the abnormal execution alarm module 200203 will also alarm. If the sensor self-check is abnormal, the abnormal execution alarm module 200203 will also alarm. Figure 6 As shown, the main function of the specified working condition comparison diagnosis module 200204 is that when the operator operates the equipment according to the specified method of the module, the specified working condition comparison diagnosis module 200204 can diagnose the performance of the key components of the system. The specified working condition mainly involves the working rock hardness variable value, the borehole diameter variable value, the engine speed variable value, and the air compressor air supply variable value of the micro drill.

[0025] The micro pile drilling machine electro-hydraulic system diagnostic method of the present invention comprises the following steps: each sensor transmits the working parameter signal of the hydraulic system 100 to the analysis and diagnosis program module 2002, and the analysis and diagnosis program module 2002 performs analysis and calculation in each subprogram module to generate a specific diagnosis result.

[0026] Specifically, the sensor self-diagnosis program module 200201 can determine in real time whether each sensor is in a normal working state; the working parameter abnormality diagnosis module 200202 can analyze and diagnose the abnormal working parameters of the system according to various operating instructions and feedback parameters of the actuator, as well as the diagnosis and analysis of the abnormal parameters; the specified working condition comparison diagnosis module 200204 can analyze the specific working conditions of the micro pile drilling rig, and the diagnostic analysis results can determine the fault conditions of the micro pile drilling rig and specific components; the execution abnormal alarm module 200203 will issue specific alarm information; the diagnostic display module 2001 displays the diagnostic results in real time.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A micro pile drilling rig electro-hydraulic system diagnostic device, characterized in that The invention comprises a hydraulic system (100) and a fault analysis and diagnosis module (200), wherein the hydraulic system (100) comprises a pump group (1001), a valve group (1002), an actuator (1003), a filter system (1004), a cooling system (1005), and an oil contamination sensor (100401), and the fault analysis and diagnosis module (200) comprises a diagnosis display module (2001), an analysis and diagnosis program module (2002), and a sensor signal module (2003).

2. A micro pile drilling machine electro-hydraulic system diagnostic device as claimed in claim 1, characterized in that The pump group (1001) is connected to the valve group (1002), the valve group (1002) is connected to the actuator (1003), the valve group (1002) is also connected to the filter system (1004), the filter system (1004) is connected to the cooling system (1005), and the filter system (1004) is provided with an oil contamination sensor (100401); the diagnosis display module (2001) is connected to the analysis and diagnosis program module (2002), and the analysis and diagnosis program module (2002) is connected to the sensor signal module (2003).

3. A micro pile drilling machine electro-hydraulic system diagnostic device as claimed in claim 1, characterized in that The pump group (1001) is provided with a pump port pressure sensor (100203).

4. A micro pile drilling machine electro-hydraulic system diagnostic device as claimed in claim 1, characterized in that The valve group (1002) is provided with a multi-way valve plate, a reversing feedback switch for each valve, and a valve group pressure sensor (100202).

5. A micro pile drilling machine electro-hydraulic system diagnostic device as claimed in claim 1, characterized in that The cooling system (1005) is provided with an oil temperature sensor (1006).

6. A micro pile drilling machine electro-hydraulic system diagnostic device as claimed in claim 1, characterized in that The actuator (1003) includes a drill arm propulsion cylinder and is provided with a cylinder displacement sensor (1007).

7. A micro pile drilling machine electro-hydraulic system diagnostic device as claimed in claim 1, characterized in that The signals received by the sensor signal module (2003) include pressure signals, valve status signals, cylinder displacement signals, temperature signals, and oil contamination signals.

8. A micro pile drilling machine electro-hydraulic system diagnostic device as claimed in claim 1, characterized in that The analysis and diagnosis program module (2002) includes a plurality of subprogram modules: a sensor self-diagnosis program module (200201), a working parameter abnormality diagnosis module (200202), an execution abnormality alarm module (200203), and a specified working condition comparison diagnosis module (200204).

9. A method for diagnosing the electro-hydraulic system of a micro pile drilling rig using the device as claimed in any one of claims 1 to 8, characterized in that The method comprises the following steps: each sensor transmits a working parameter signal of the hydraulic system (100) to an analysis and diagnosis program module (2002); the analysis and diagnosis program module (2002) performs analysis and calculation in each subprogram module to generate a specific diagnosis result.

10. A method for diagnosing the electro-hydraulic system of a micro pile drilling rig using the device as claimed in claim 8, characterized in that The sensor self-diagnosis program module (200201) can determine in real time whether each sensor is in a normal working state; the working parameter abnormality diagnosis module (200202) can analyze and diagnose the abnormal working parameters of the system according to various operating instructions and feedback parameters of the actuator, as well as diagnose and analyze the abnormal parameters; the specified working condition comparison diagnosis module (200204) can analyze the specific working conditions of the micro pile drilling rig, and the diagnostic analysis results can determine the fault conditions of the micro pile drilling rig and specific components; the execution abnormality alarm module (200203) will issue specific alarm information; the diagnosis display module (2001) displays the diagnosis results in real time.

Images