JP2010180674A - Method of measuring function speed of working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of measuring the function speed of a working machine by which method an accurate measurement is obtained without setting a sensor for each actuator. <P>SOLUTION: A pressure detector 31 detects a rise in the pump pressure of a hydraulic fluid supplied to a hydraulic cylinder 18, or a pressure switch 33 detects a rise in the pilot pressure of a pilot valve 28. Either of pressure rises is input as a trigger for measurement start, to a machine body controller 36. After the hydraulic cylinder 18 operates in a fixed amount of operation, the pressure detector 31 detects a rise in the pump pressure that occurs as a result of a cylinder end collision operation, and a detection signal from the pressure detector 31 is input as a trigger for measurement end, to the machine body controller 36. The machine body controller 36 calculates a required time between the measurement start and the measurement end, and measures the function speed of the hydraulic cylinder 18 based on the fixed amount of operation by the hydraulic cylinder 18 and the required time. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a function speed measuring method for a work machine including a machine controller.

  When measuring the function speed of a hydraulic excavator, it is common for the operator inside the aircraft to move the hydraulic excavator, and the operator outside the aircraft to measure the actuator of the hydraulic excavator while measuring with a stopwatch. Measurement values vary depending on the judgment criteria of the person and the timing of pressing the button on the stopwatch. In addition, when such work is performed by one person, it is difficult to measure because the stopwatch must be pressed simultaneously with the operation of the work machine.

  On the other hand, there are pressure switches that detect the pilot pressure generated by operating the operating lever, and those that automatically measure the number of operations and time using the displacement and pressure of the actuator (for example, reference Reference 1).

  In addition, there is one that measures the amount of work using a pressure switch that detects a pilot pressure or a load pressure sensor that detects a load pressure of an actuator (see, for example, Reference 2).

  Further, there is a type in which automatic measurement of the arm cloud time is started by an operation signal of the arm cylinder operation lever, the lower limit threshold value of the arm angle is detected by an arm angle sensor, and the measurement is terminated (for example, see Reference 3).

JP-A-11-140910 (page 3, FIG. 1) JP 2000-129727 A (Page 4, FIG. 1) JP 2004-232343 A (7th page, FIG. 5)

  The pilot pressure switch does not function unless the operator turns the operation lever at the end of the measurement while watching the movement of the actuator. Therefore, there is a problem that an accurate measurement value similar to that of the stopwatch cannot be obtained. Further, there is a problem that a sensor for detecting the displacement (angle) or pressure (load pressure) of the actuator must be installed for each actuator.

  The present invention has been made in view of these points, and an object of the present invention is to provide a function speed measurement method for a work machine that can obtain an accurate measurement value without installing a sensor for each actuator.

  The invention described in claim 1 is a method for measuring a function speed of a work machine including a machine controller, and an operation supplied to the hydraulic cylinder when measuring a function speed of a working device operated by the hydraulic cylinder. The rise of either the oil pump pressure or the pilot pressure that pilots the control valve for hydraulic cylinder control is input to the machine controller as a trigger to start measurement, and the pump pressure after the work device has actuated the specified operating amount. Is a function speed measurement method for a work machine in which the machine controller is input to the machine controller as a trigger to end measurement, and the machine controller measures the time required from the start of measurement to the end of measurement.

  The invention described in claim 2 is a function speed measurement method for a work machine equipped with an airframe controller, and when measuring the function speed of an airframe operated by a hydraulic motor, as a trigger for measurement start and measurement end The switch connected to the airframe controller is operated at the measurement start home position and the measurement end home position, and the time required from the switch operation at the measurement start home position to the switch operation at the measurement end home position is measured by the airframe controller. This is a function speed measurement method for work machines.

  The invention described in claim 3 is a method for displaying a measurement result on a monitor connected to the machine controller in the function speed measuring method for a work machine according to claim 1 or 2.

  According to a fourth aspect of the present invention, in the function speed measuring method of the working machine according to the third aspect, the spec data is stored in the body controller, and the spec data is compared with the actually measured data, This is a method of displaying the comparison result on a monitor.

  According to the first aspect of the present invention, the rising of one of the pump pressure and the pilot pressure is input to the airframe controller as a trigger for starting measurement, and the pump pressure after the work device has actuated the predetermined operating amount is input. The rise is input to the machine controller as a trigger for the end of measurement, and the time required for the work apparatus is measured by the machine controller, so that an accurate measurement value can be obtained without installing a sensor for each actuator. In particular, because the pump pressure rising phenomenon generated by the cylinder end collision operation of the hydraulic cylinder is used to input the pump pressure rising after the working device has actuated a predetermined operating amount as a trigger for the end of measurement to the airframe controller. The measurement end point can be accurately input to the airframe controller.

  According to the invention described in claim 2, as a trigger for measurement start and measurement end, a switch connected to the body controller is operated at the measurement start fixed position and the measurement end fixed position, and the measurement start fixed position is determined by the machine controller. Since the time required from the switch operation at 1 to the switch operation at the measurement end position is measured, an accurate measurement value can be obtained only by the switch operation without installing a sensor for each actuator.

  According to the invention described in claim 3, the measurement result can be immediately confirmed on the monitor.

  According to the fourth aspect of the present invention, the spec data stored in the airframe controller is compared with the actual measurement data, and the comparison result is displayed on the monitor. Can grasp.

It is a circuit diagram showing one embodiment of a hydraulic circuit and a control circuit concerning a function speed measuring method of a work machine concerning the present invention. It is a side view which shows the example which applied the measuring method same as the above to the boom cylinder operating speed of a hydraulic shovel. It is a side view which shows the example which applied the measuring method same as the above to the stick cylinder operating speed of a hydraulic shovel. It is a side view which shows the example which applied the measuring method same as the above to the bucket cylinder operating speed of a hydraulic shovel. It is a side view which shows the example which applied the measuring method same as the above to the flat ground travel speed of a hydraulic excavator. It is a side view which shows the example which applied the measuring method same as the above to the crawler idle time of a hydraulic excavator. It is a side view which shows the example which applied the measuring method same as the above to the turning time in the flat ground of a hydraulic excavator. The example which applied the measuring method same as the above to the turning time in the sloping ground of a hydraulic shovel is shown, (a) is a rear view, (b) is a top view.

  Hereinafter, the present invention will be described in detail with reference to one embodiment shown in FIGS.

  FIG. 2 shows a hydraulic excavator 10 as a work machine. As a machine body 11, an upper swing body 13 is provided on a lower traveling body 12 so as to be capable of swinging. On the upper swing body 13, a power unit 14, a cab 15, and a work Device 16 is installed. The lower traveling body 12 includes a left and right traveling hydraulic motor (referred to as a traveling motor) 17tr, the upper swing structure 13 includes a swing hydraulic motor (referred to as a swing motor) 17sw, and the work device 16 moves the boom 18bm in the vertical direction. A hydraulic cylinder (referred to as a boom cylinder) 18bmcy that operates in the forward direction, a hydraulic cylinder (referred to as a stick cylinder) 18stcy that operates the stick 18st in the longitudinal direction, and a hydraulic cylinder (referred to as a bucket cylinder) 18bkcy that operates the bucket 18bk in and out. ing.

  As shown in FIG. 1, a main pump 22 and a pilot pump 23 are connected to an engine 21 installed as a power unit 14 on the upper swing body 13, and a suction port of the main pump 22 is connected to a hydraulic oil tank 24. The discharge port is connected to a hydraulic motor 17 such as a traveling motor 17tr and a swing motor 17sw, and a hydraulic cylinder 18 such as a boom cylinder 18bmcy, a stick cylinder 18stcy and a bucket cylinder 18bkcy via each actuator control spool 26 of the control valve 25. Has been.

  Each actuator control spool 26 of the control valve 25 is displaced by a pilot pressure (remote control pressure) supplied through a pilot passage 29 from a pilot valve (so-called remote control valve) 28 operated by an operation lever 27.

  The control valve 25 includes a center bypass passage 30 that has the largest opening when all the actuator control spools 26 are in the neutral position, and takes out a negative flow control pressure (referred to as a negative control pressure) from the rearmost portion of the center bypass passage 30. A negative control passage 30nc is drawn out, and this negative control passage 30nc is connected to a capacity variable control means (such as a regulator for controlling the tilt angle of the pump swash plate) 22c of the main pump 22.

  When all the actuator control spools 26 are in the neutral position, the negative control pressure becomes the highest pressure, the capacity of the main pump 22 is controlled to the lowest or zero, and the actuator control spool 26 is displaced by the pilot pressure. When the is operated, the negative control pressure decreases, and the capacity of the main pump 22 increases in accordance with the decrease of the negative control pressure, the pump discharge flow rate increases, and the pump pressure discharged from the main pump 22 also increases.

  The discharge line of the main pump 22 is provided with a pressure detector 31 that detects the pump pressure. The upper end of the operation lever 27 is a switch that can be turned on with the fingertip of the hand that holds the operation lever 27. A button switch 32 is provided, the pilot valve 28 is provided with a pressure switch 33 for detecting a winning pilot pressure (any remote control pressure), and a monitor 34 that can be operated by an operator of the sitting posture in the cab 15 includes: A button switch 35 is provided as a switch that can be turned on with a fingertip.

  The pressure detector 31 is a pressure switch or a pressure sensor, and the button switch 32 is, for example, a one-touch low idle button switch that can reduce the engine speed to idle rotation only by turning on the engine by switching the function on the monitor 34. good. The pressure detector 31, the button switch 32, the pressure switch 33, and the monitor 34 are connected to a machine controller 36 that includes a storage device and an arithmetic processing unit.

  Next, a function speed measuring method related to the operating speed of the boom cylinder 18bmcy will be described with reference to FIG.

  By starting the engine 21 and setting the monitor 34 to the service mode, etc., the time can be measured using the airframe controller 36, and the boom 18bm operated by the boom cylinder 18bmcy is moved from the highest position by the cylinder contraction operation. The function speed of the boom cylinder 18bmcy is measured as follows in each of the case A in which it is lowered to the lowest position and the case B in which it is raised from the lowest position to the highest position by the cylinder extension operation.

  The rise of the pump pressure of the hydraulic oil supplied to the boom cylinder 18bmcy is detected by the pressure detector 31, or the rise of the pilot pressure of the pilot valve 28 for piloting the actuator control spool 26 of the control valve 25 is detected by the pressure switch 33. Then, at least one of the rising edges is input to the body controller 36 as a trigger for starting measurement.

  When the pressure detector 31 detects the rising of the pump pressure generated by the cylinder end collision operation of the boom cylinder 18bmcy after the boom 18bm has actuated the predetermined operating amount, the machine controller is used as a trigger for the end of measurement. 36, the time required from the start of measurement to the end of measurement is measured by the body controller 36, and the function speed of the boom 18bm is measured based on the predetermined operation amount and the required time of the boom 18bm.

  These function speed measurement results are displayed on the monitor 34 connected to the machine controller 36. Further, the spec data is stored in the machine controller 36, the spec data is compared with the measured data, and the comparison result is displayed on the monitor 34.

  As described above, the rise of one of the pump pressure and the pilot pressure when the boom cylinder 18bmcy is operated is input to the airframe controller 36 as a trigger for starting measurement, and the boom 18bm is operated for a predetermined operation amount. The subsequent rise in pump pressure is input to the airframe controller 36 as a trigger for the end of measurement, and the function speed of the boom 18bm is measured by the airframe controller 36, so accurate measurement values can be obtained without installing a sensor for each actuator. . In particular, using the pump pressure rising phenomenon that occurs in the cylinder end collision operation of the boom cylinder 18bmcy, the pump pressure rising after the working device has actuated the specified operating amount is input to the body controller 36 as a trigger for the end of measurement. Therefore, the measurement end point can be accurately input to the body controller 36.

  The measurement result can be immediately confirmed on the monitor 34, and the specification data stored in the airframe controller 36 is compared with the actual measurement data, and the comparison result is displayed on the monitor 34. Therefore, if there is an abnormality in the actual measurement data of the boom cylinder 18bmcy , Can accurately grasp the abnormality.

  Next, a function speed measuring method related to the operating speed of the stick cylinder 18stcy will be described with reference to FIG.

  By starting the engine 21 and setting the monitor 34 to the service mode, etc., the time can be measured using the airframe controller 36, and the stick 18st operated by the stick cylinder 18stcy is moved from the foremost position by the cylinder extension operation. The function speed of the stick cylinder 18stcy is measured as follows in each of the case C where the cylinder is retracted to the last position and the case C where the cylinder is retracted from the last position to the foremost position.

  The rise of the pump pressure of the hydraulic oil supplied to the stick cylinder 18stcy is detected by the pressure detector 31, or the rise of the pilot pressure of the pilot valve 28 that pilot-operates the actuator control spool 26 of the control valve 25 is detected by the pressure switch 33. Then, at least one of the rising edges is input to the body controller 36 as a trigger for starting measurement.

  When the pressure detector 31 detects the rising of the pump pressure generated by the cylinder end collision operation of the stick cylinder 18stcy after the stick 18st has actuated a predetermined operating amount, the airframe controller uses this detection signal as a trigger for the end of measurement. 36, the time required from the start of measurement to the end of measurement is measured by the body controller 36, and the function speed of the stick 18st is measured based on the predetermined operation amount and the required time of the stick 18st.

  These function speed measurement results are displayed on the monitor 34 connected to the machine controller 36. Further, the spec data is stored in the machine controller 36, the spec data is compared with the measured data, and the comparison result is displayed on the monitor 34.

  In this way, the rise of either the pump pressure or the pilot pressure when the stick cylinder 18stcy is operated is input to the airframe controller 36 as a trigger for starting measurement, and the stick 18st is operated for a predetermined operation amount. The subsequent rise in pump pressure is input to the airframe controller 36 as a trigger for the end of measurement, and the function speed of the stick 18st is measured by the airframe controller 36, so accurate measurement values can be obtained without installing a sensor for each actuator. . In particular, by using the pump pressure rising phenomenon generated by the cylinder end collision operation of the stick cylinder 18stcy, the pump pressure rising after the working device has actuated a predetermined operating amount is input to the machine controller as a trigger for the end of measurement. Therefore, the measurement end point can be accurately input to the airframe controller.

  The measurement result can be confirmed on the monitor 34 immediately, and the spec data stored in the airframe controller 36 is compared with the actual measurement data, and the comparison result is displayed on the monitor 34. If there is an abnormality in the actual measurement data of the stick cylinder 18stcy , Can accurately grasp the abnormality.

  Next, referring to FIG. 4, a function speed measuring method relating to the operating speed of the bucket cylinder 18bkcy will be described.

  By starting the engine 21 and setting the monitor 34 to the service mode, etc., the time can be measured using the airframe controller 36, and the bucket 18bk operated by the bucket cylinder 18bkcy is moved to the innermost position by the cylinder contraction operation. The function speed of the bucket cylinder 18bkcy is measured as follows in each of the case E in which the outer rotation is performed from the outermost position to the outermost position and the case F in which the innerward movement is performed from the outermost position to the innermost position by the cylinder extending operation.

  The rise of the pump pressure of the hydraulic oil supplied to the bucket cylinder 18bkcy is detected by the pressure detector 31, or the rise of the pilot pressure of the pilot valve 28 that pilot-operates the actuator control spool 26 of the control valve 25 is detected by the pressure switch 33. Then, at least one of the rising edges is input to the body controller 36 as a trigger for starting measurement.

  When the pressure detector 31 detects the rising of the pump pressure generated by the cylinder end collision operation of the bucket cylinder 18bkcy after the bucket 18bk has actuated a predetermined operating amount, the machine controller is used as a trigger for the end of measurement. 36, the time required from the start of measurement to the end of measurement is measured by the body controller 36, and the function speed of the bucket 18bk is measured based on the predetermined operation amount and the required time of the bucket 18bk.

  These function speed measurement results are displayed on the monitor 34 connected to the machine controller 36. Further, the spec data is stored in the machine controller 36, the spec data is compared with the measured data, and the comparison result is displayed on the monitor 34.

  As described above, the rise of one of the pump pressure and the pilot pressure when the bucket cylinder 18bkcy is operated is input to the airframe controller 36 as a trigger for starting measurement, and the bucket 18bk is activated for a predetermined operation amount. The subsequent rise in pump pressure is input to the airframe controller 36 as a trigger for the end of measurement, and the airframe controller 36 measures the function speed of the bucket 18bk, so accurate measurement values can be obtained without installing a sensor for each actuator. . In particular, by using the pump pressure rising phenomenon generated by the cylinder end collision operation of the bucket cylinder 18bkcy, the pump pressure rising after the working device has actuated a predetermined operating amount is input to the airframe controller as a trigger for the end of measurement. Therefore, the measurement end point can be accurately input to the airframe controller.

  The measurement result can be confirmed on the monitor 34 immediately, and the spec data stored in the airframe controller 36 is compared with the actual measurement data, and the comparison result is displayed on the monitor 34. If there is an abnormality in the actual measurement data of the bucket cylinder 18bkcy , Can accurately grasp the abnormality.

  Next, with reference to FIG. 5, a function speed measurement method relating to the flat ground traveling speed of the airframe 11 will be described.

  By starting the engine 21 and setting the monitor 34 to the service mode or the like, the time can be measured using the airframe controller 36, the accelerator dial position is set to the maximum value “10”, and the left and right traveling motors are set. The airframe 11 run by 17tr is moved at a constant speed forward from the mark body 41 at the measurement start fixed position G to the mark body 42 at the measurement end fixed position H, and when traveling at a constant speed backward as follows. To measure the function speed of the aircraft.

  As triggers for measurement start and measurement end, the button switch 32 of the operating lever 27 connected to the machine controller 36 or the button switch 35 of the monitor 34 is turned on at the measurement start fixed position G and the measurement end fixed position H, respectively. The controller 36 measures the required time from the switch operation at the measurement start home position G to the switch operation at the measurement end home position H, and the predetermined operation amount L and the required time from the measurement start home position G to the measurement end home position H. Then, the function speed related to the traveling speed of the airframe 11 is measured.

  These function speed measurement results are displayed on the monitor 34 connected to the machine controller 36. Further, the spec data is stored in the machine controller 36, the spec data is compared with the measured data, and the comparison result is displayed on the monitor 34.

  In this way, the button switch 32 or 35 is operated at the measurement start fixed position G and the measurement end fixed position H as triggers for measurement start and measurement end, and from the measurement start fixed position G to the measurement end fixed position H by the body controller 36. Is measured, and the function speed of the machine body 11 is measured based on the predetermined operation amount L and the required time. Therefore, an accurate measurement value can be obtained only by operating the switch without installing a sensor for each actuator.

  The measurement results can be checked immediately on the monitor 34, and the spec data stored in the airframe controller 36 is compared with the actual measurement data, and the comparison results are displayed on the monitor 34. Can be accurately grasped.

  Next, a function speed measurement method related to the crawler idling time of the lower traveling body 12 will be described with reference to FIG.

  By starting the engine 21 and setting the monitor 34 to the service mode or the like, it is possible to perform time measurement using the airframe controller 36, and the upper revolving unit 13 is turned 90 ° with respect to the lower traveling unit 12. Then, the working device 16 is lowered by the boom cylinder 18bmcy, so that the other crawler belt 12tr2 is lifted from the ground with the one crawler belt 12tr1 as a fulcrum. The mark body 43 is marked on the visible portion of the operator in the cab of the crawler belt 12tr2, the accelerator dial position is set to the maximum value "10", and the crawler belt 12tr2 is idled. For each of the forward direction and the reverse direction, the crawler belt 12tr2 is rotated, for example, three times while viewing the mark body 43, and the time required is measured.

  At this time, as a trigger for measurement start and measurement end, the operator of the cab 15 visually confirmed the mark body 43 at a fixed position as the button switch 32 of the operation lever 27 or the button switch 35 of the monitor 34 connected to the machine controller 36. Sometimes it is turned on to start measurement, and after turning the crawler belt 12tr2 three times, for example, when the mark body 43 is visually recognized at a fixed position, it is turned on again to finish the measurement. Measure the time required from the start to the end of the measurement switch operation.

  These measurement results are displayed on the monitor 34 connected to the machine controller 36. Further, the spec data is stored in the machine controller 36, the spec data is compared with the measured data, and the comparison result is displayed on the monitor 34.

  As described above, the button switch 32 or 35 is turned on at the start of measurement and at the end of measurement as a trigger for measurement start and measurement, and the time required from the start of measurement to the end of measurement is measured by the body controller 36. Accurate measurement values can be obtained only by operating the switch without installing a sensor.

  The measurement result can be immediately confirmed on the monitor 34, and the spec data stored in the airframe controller 36 is compared with the actual measurement data, and the comparison result is displayed on the monitor 34. Abnormalities can be accurately grasped.

  Next, with reference to FIG. 7, a function speed measurement method related to turning time on a flat ground will be described.

  By installing the mark body 44, starting the engine 21, and setting the monitor 34 to the service mode etc., it is possible to perform time measurement using the machine controller 36, and with the posture where the work device 16 is extended forward, The operator in the cab fully operates the turning operation lever, and rotates the upper turning body 13 with respect to the lower traveling body 12 by the turning motor 17sw, for example, one turn while looking at the mark body 44 in each of the left turning direction and the right turning direction. And measure the time required.

  At this time, the operator in the cab 15 visually recognized the mark body 44 in a fixed position as a trigger for measurement start and measurement end, the button switch 32 of the operation lever 27 connected to the machine controller 36 or the button switch 35 of the monitor 34. Sometimes it is turned on to start measurement, and after turning the upper turning body 13 once, when the mark body 44 is visually recognized at a fixed position, it is turned on again to finish the measurement, and the body controller 36 switches the measurement start switch. The time required from the operation to the switch operation at the end of measurement is measured.

  These measurement results are displayed on the monitor 34 connected to the machine controller 36. Further, the spec data is stored in the machine controller 36, the spec data is compared with the measured data, and the comparison result is displayed on the monitor 34.

  As described above, the button switch 32 or 35 is turned on at the start of measurement and at the end of measurement as a trigger for measurement start and measurement, and the time required from the start of measurement to the end of measurement is measured by the body controller 36. Accurate measurement values can be obtained only by operating the switch without installing a sensor.

  The measurement results can be immediately confirmed on the monitor 34, and the spec data stored in the airframe controller 36 is compared with the actual measurement data, and the comparison results are displayed on the monitor 34. Can be accurately grasped.

  Next, a function speed measurement method related to the turning time on an inclined ground will be described with reference to FIG.

  As shown in FIG. 8 (a), on an inclined ground 45 with an inclination angle α, as shown in FIG. 8 (b), a machine body in which the upper swing body 13 is turned 90 ° to the left with respect to the lower traveling body 12. The front of the operator in the cab in the posture, the front of the operator in the cab in the 0 ° body posture with the upper turning body 13 returned parallel to the lower traveling body 12, and the inside of the cab in the body posture rotated 90 ° to the right Markers 46, 47, 48 are installed on the front of the operator, the engine 21 is started, and the monitor 34 is set to the service mode, etc., so that time measurement can be performed using the machine controller 36, The operator in the cab starts the upper turning body 13 from the left 90 ° body posture while looking at the mark bodies 46, 47 and turns 90 ° to the right while looking at the mark bodies 48, 47. When starting from aircraft posture and turning to 0 ° aircraft posture J For, to measure the time required.

  At this time, the button switch 32 of the operating lever 27 connected to the machine controller 36 or the button switch 35 of the monitor 34 connected to the machine controller 36 is used as a trigger for measurement start and measurement end. Start measurement by turning on in the visually recognized state, and when the mark body 47 is visually recognized at a fixed position, the measurement is turned on again to finish the measurement. From the switch operation for starting measurement to the switch operation for finishing measurement by the body controller 36. Measure the required time.

  These measurement results are displayed on the monitor 34 connected to the machine controller 36. Further, the spec data is stored in the machine controller 36, the spec data is compared with the measured data, and the comparison result is displayed on the monitor 34.

  As described above, the button switch 32 or 35 is turned on at the start of measurement and at the end of measurement as a trigger for measurement start and measurement, and the time required from the start of measurement to the end of measurement is measured by the body controller 36. Accurate measurement values can be obtained only by operating the switch without installing a sensor.

  The measurement result can be immediately confirmed on the monitor 34, and the specification data stored in the airframe controller 36 is compared with the actual measurement data, and the comparison result is displayed on the monitor 34. , Can accurately grasp the abnormality.

  As shown in each of the above embodiments, time measurement is performed using the airframe controller 36, and triggers for starting measurement include rising of pump pressure, detection of pilot pressure (remote control pressure), or button switches 32 and 35. One of the ON operation signals (turning / running, etc.) is used, and the trigger for the end of measurement is either the rise of pump pressure or the ON operation signal of button switches 32, 35 (turning / running, etc.) Is used.

  For example, at the start of measurement when the hydraulic cylinder 17 is activated, the rise of the pump pressure or the pressure detection of the remote control pressure is input to the machine controller 36 as a trigger for starting the measurement, and at the end of the measurement of the hydraulic cylinder 18, The rise of the pump pressure generated by the cylinder end collision operation is input to the body controller 36 as a trigger for the end of measurement.

  Further, at the start of measurement when the hydraulic motor 17 used in the turning system or the traveling system is operated, the operator visually recognizes the mark bodies 41, 42, 43, 44, 46, 47, 48, and the one-touch low idle switch button ( Operate button switches 32 and 35 such as auto-decel switch button) or monitor button and input to the body controller 36 as a trigger for starting measurement, or the rise of remote control pressure or pump pressure as the trigger for starting measurement Input to the controller 36. At the end of measurement when the hydraulic motor 17 is activated, the operator visually recognizes the mark bodies 41, 42, 43, 44, 46, 47, 48 and turns on the button switches 32, 35. This is input to the airframe controller 36 as a measurement end trigger.

  Then, the measurement result is displayed on the monitor 34. At that time, as an average function speed automatic calculation function, an average value of function speeds measured multiple times is automatically calculated and displayed. As an additional function of the monitor 34, a measurement method instruction (operation method, number of times, etc.) to the service person is displayed on the monitor 34.

  In the specification determination, the specification data is stored in the body controller 36, and a message such as “in specification” is displayed on the monitor 34 in comparison with the actual measurement data.

  Thus, according to the present embodiment, variations in measurement results by the operator can be reduced, and the work can be facilitated.

  The present invention can use a machine controller and a hydraulic actuator for a function speed measurement method of a work machine.

10 Hydraulic excavator as work machine
16 Work equipment
17 Hydraulic motor
18 Hydraulic cylinder
25 Control valve
32 Button switch as switch
34 Monitor
35 Button switch as switch
36 Aircraft controller

Claims (4)

A function speed measurement method for a work machine equipped with a machine controller,
When measuring the function speed of the working device operated by the hydraulic cylinder, the rising of either the pump pressure of the hydraulic oil supplied to the hydraulic cylinder or the pilot pressure that pilot-operates the control valve for controlling the hydraulic cylinder, Input to the aircraft controller as a trigger to start measurement,
The rise of the pump pressure after the working device has actuated a predetermined operating amount is input to the airframe controller as a trigger for the end of measurement,
A function speed measurement method for work machines, characterized in that the time required from the start of measurement to the end of measurement is measured by the machine controller. A function speed measurement method for a work machine equipped with a machine controller,
When measuring the function speed of the airframe operated by the hydraulic motor, operate the switch connected to the airframe controller at the measurement start fixed position and measurement end fixed position as triggers for measurement start and measurement end,
A function speed measurement method for a work machine, characterized in that the time required from the switch operation at the measurement start fixed position to the switch operation at the measurement end fixed position is measured by the machine controller. 3. The function speed measurement method for a work machine according to claim 1, wherein the measurement result is displayed on a monitor connected to the machine controller. Spec data is stored in the aircraft controller,
4. The function speed measurement method for a work machine according to claim 3, wherein the spec data is compared with the measured actual data, and the comparison result is displayed on a monitor.

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