JP4261901B2 - Crushing monitoring system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a monitoring system for a crushing operation performed using a crusher such as a jaw crusher, an impact crusher, or a cone crusher.
[0002]
[Background]
Conventionally, a main body portion, a supply portion that is mounted on the rear side of the main body portion and supplies raw materials, a crusher such as a jaw crusher that is mounted on the main body portion and crushes raw materials supplied from the supply portion, and a main body A self-propelled crusher provided with a discharge device such as a discharge conveyor disposed below the section is known.
[0003]
According to this self-propelled crusher, when the raw material is loaded into the supply unit with a loader such as a power shovel, the raw material is supplied from the supply unit to the crusher. Drops downward from the machine outlet. The fallen crushed material is conveyed by the discharge device.
Here, in order to monitor clogging of the crushed material, for example, there is a configuration in which the crushing state inside the crusher is displayed on the monitor by a camera and the passage of the crushed material is detected by a detection sensor provided at the discharge port of the discharge device. (For example, refer to Patent Document 1).
[0004]
[Patent Document 1]
JP-A-11-333318 (FIG. 3)
[0005]
[Problems to be solved by the invention]
However, in the self-propelled crusher shown in Patent Document 1, in reality, water droplets in rainy weather and dust during crushing adhere to the camera, and the camera installation state is unstable due to vibration during crushing work. For this reason, it is difficult to confirm the crushing state by imaging with a camera, and it has not been possible to reliably determine whether or not an abnormal state such as clogging of the crushing material has actually occurred.
Also, in order to project the inside of the crusher with a camera, the camera must be attached to the upper part of the crusher, so that the operator of the loader may accidentally drop the raw material on the upper part of the camera and damage the camera.
Furthermore, even if the detection sensor provided at the discharge port of the discharge device is used, if an abnormal state in which the crushed material does not actually pass has occurred, it may have occurred due to the discharge device abnormality or on the upstream side thereof Since it is not possible to grasp whether it is caused by an abnormality in the crusher or the supply unit, it took time to identify the working machine in which the abnormality occurred, and it took time to return to the normal state.
[0006]
In addition, in the detection sensor provided in the discharge device, when the raw material is intermittently input by the loader, the amount of crushed material passing through the discharge device varies, so there is a possibility that an abnormal state is erroneously detected. For this reason, the worker was confused and lacked reliability.
[0007]
The objective of this invention is providing the monitoring system of the crushing operation | work which can recognize an abnormal condition and its occurrence location reliably.
Another object of the present invention is to provide a highly reliable crushing monitoring system.
[0008]
[Means for solving the problems and effects]
  The monitoring system for crushing work according to claim 1 of the present invention comprises:Detecting whether a plurality of work machines used in a series of crushing operations are normal and / or abnormal, a detection means provided corresponding to each of the plurality of work machines, and these detection means A determination unit that determines that the corresponding work implement is abnormal when the abnormality detection information from the device is detected for a predetermined time, and determines that the abnormality is normal when the abnormality detection information is less than the predetermined time; Command means for outputting command information for a predetermined work machine based on the determination result, and display means for displaying a plurality of determination results of the determination means as operation information are provided.
  Here, among working machines used for each operation such as supply, crushing, and discharging during a series of crushing operations, all the operation information may be displayed for each working machine, or a plurality of working machines may be selected. Such operation information may be displayed. In addition, the “series of crushing operations” includes operations for moving the working machine in addition to the operations described above.
[0009]
  According to the present invention, if a specific work machine is normal, operation information indicating that the work machine is normal is displayed. If an abnormality occurs in the specific work machine, the work machine is abnormal. Is displayed on the display means. Therefore, as compared with the conventional case where only the crushing state is directly displayed on the monitor by the camera, it is possible to recognize the operating state of all work machines based on the result determined as normal or abnormal, and it is possible to reliably recognize the abnormal state.
  At this time, since multiple pieces of operation information are displayed, that is, the operation information of all work machines or a plurality of selected work machines is displayed, it is possible to reliably recognize which work machine is where the true abnormality occurred. it can.
  More specifically, since the case where the abnormality detection information is detected for a predetermined time is determined as an abnormality of the work implement, it is possible to prevent a determination error of the abnormal state. In addition, since the command means is provided, even if the operator is not aware of the abnormal condition, a stop command or the like is automatically output to the work machine, so that the abnormal condition can be left for a long time to cause further problems. Can be prevented. Therefore, a highly reliable system can be constructed.
[0010]
The crushing operation monitoring system according to claim 2 is the crushing operation monitoring system according to claim 1, wherein the operation information is graphically displayed together with the normal and / or abnormal work machine graphic. .
According to the present invention, since the operation information for each work machine can be intuitively grasped through vision, an abnormality occurrence location can be recognized accurately.
[0011]
The crushing work monitoring system according to claim 3 is the crushing work monitoring system according to claim 2, wherein the work machine is displayed in a plan view and is partially or entirely blocked by the work machine in plan view. The work machine is displayed separately from the work machine.
Here, “display other work implements separately” means that the other work implements are different from the plan view representing the work implement so that the other work implements blocked by the work implements can be visually recognized. This means that a figure is displayed at a position or a figure is displayed on another screen.
According to the present invention, more work machines can be graphically displayed, so that operation information of work machines used in a series of crushing operations can be recognized more reliably.
[0012]
The crushing operation monitoring system according to claim 4 is the crushing operation monitoring system according to any one of claims 1 to 3, wherein the operation information indicating normality and the operation information indicating abnormality are displayed in different colors. It is characterized by.
According to the present invention, since the color is changed when an abnormal state occurs, the operating state is more easily recognized.
[0013]
The crushing work monitoring system according to claim 5 is the crushing work monitoring system according to any one of claims 1 to 4, wherein the display means graphically displays a setting screen for setting operating conditions of the work machine. It is characterized by that.
Here, the “operating condition” includes the amount of raw material put into a working machine such as a crusher, the limit value of the hydraulic pressure of a hydraulic motor used in each working machine, and the like.
According to the present invention, since the operating conditions can be freely set according to the characteristics of the work machine and raw materials, the versatility of the monitoring system is improved. Since the operating conditions can be set on the screen displayed as a graphic, the setting operation is easy.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an external view showing a self-propelled crusher 1 and a loader 2 such as a power shovel to which a monitoring system according to this embodiment is applied. In this system, in a series of crushing operations for crushing raw materials input from the loader 2 to the self-propelled crusher 1, any of the working machines used in the crushing operation is normal. And which work machine is abnormal.
[0017]
A self-propelled crusher 1 used in the present system includes a main body 10 having a pair of lower traveling bodies (working machines) 11 and a rear side of the main body 10 in the front-rear direction (left-right direction in FIG. 1). From the supply unit 20 mounted on the front side, the crusher (work machine) 30 mounted in front of the supply unit 20, the power line 40 mounted on the further front side of the crusher 30, and the lower part of the main body unit 10. And a discharge conveyor (work machine) 50 extending obliquely upward and forward.
[0018]
In the main body 10, the lower traveling body 11 is a crawler type and is driven by a hydraulic motor 12. The lower traveling body 11 may be a wheel type driven by a similar hydraulic motor, or may be a type using both a crawler type and a wheel type. And by driving such a lower traveling body 11, the self-propelled crusher 1 can be moved to an optimum position.
[0019]
The supply unit 20 is expanded upward and a hopper 21 into which raw materials are input, a grizzly feeder (working machine) 22 that feeds the input raw materials to the crusher 30, and an uncrushed material that has fallen from a gap between the grizzly feeders 22. A side conveyor (working machine) 23 that discharges raw materials to the side of the self-propelled crusher 1 is provided. The grizzly feeder 22 is driven by a hydraulic motor 26 of a vibration device 25, and the side conveyor 23 is hydraulic motor 27 (FIG. 2). ).
[0020]
In this embodiment, the crusher 30 is a jaw crusher including a fixed jaw and a swing jaw. However, the crusher 30 may be an impact crusher, a cone crusher, a shear crusher, or a roll crusher. Such a swing jaw of the crusher 30 is driven by a hydraulic motor 31 (FIG. 2).
[0021]
As shown in FIG. 2, the power line 40 includes an engine 41 and a hydraulic pump 42 driven by the engine 41. The hydraulic pressure from the hydraulic pump 42 is supplied via the control valves 101 to 108 to the hydraulic motor 12 of the lower traveling body 11, the hydraulic motor 26 of the vibration device 25 provided in the grizzly feeder 22, the hydraulic motor 31 of the crusher 30, and the following explanation. Are supplied to a hydraulic motor 51 of a discharge conveyor 50, a hydraulic motor 61 of a magnetic separator 60 described later, a hydraulic motor 71 of a sieve 70, and a hydraulic motor 81 of a secondary conveyor 80.
[0022]
The discharge conveyor 50 conveys and discharges the crushed material crushed by the crusher 30 to the front side of the vehicle and deposits it on the ground, and is driven by the hydraulic motor 51 at the front end as described above. In addition, when a concrete lump containing reinforcing bars or the like is input as a raw material, in order to remove the reinforcing bars from the discharge conveyor 50, a magnetic separator (working machine) 60 is used as shown by a two-dot chain line in FIG. May be retrofitted. In addition, the crushed material discharged from the discharge conveyor 50 is not deposited on the ground as it is, but the crushed material may be further passed through a sieve (working machine) 70 to be sorted into large and small crushed materials having different particle sizes. In this case, the crushed material having a small particle size dropped from the gap between the sieves 70 is further transported to a position separated by the secondary conveyor (working machine) 80, and the crushed material having a large particle size remaining on the sieve 70 is removed from the sieve 70. It slides down and accumulates, or is carried out to another place by a tertiary conveyor (not shown).
[0023]
Furthermore, as shown in FIGS. 1 and 2, the self-propelled crusher 1 includes a control unit 90 on the front side of the main body 10. The control unit 90 includes an ON / OFF switch (SW) for each of the above-described working machines, specifically, a grizzly feeder 22, a side conveyor 23, a crusher 30, a discharge conveyor 50, a magnetic separator 60, a sieve 70, and two Each ON-OFF switch of the next conveyor 80 is provided, and a signal from each switch is output to the controller 91. However, in FIG. 2, the switches for the left and right lower traveling bodies 11 are omitted.
[0024]
The controller 91 inputs a signal from each switch and outputs a control signal to the control valves 101 to 108 for each work machine 11, 22, 23, 30, 50, 60, 70, 80, and determines their drive state. Switch. On the other hand, a detection means 110 such as a pressure sensor is provided on the hydraulic circuit on the inlet side to each of the hydraulic motors 12, 27, 31, 51, 61, 71, 81 except for the hydraulic motor 26 of the grizzly feeder 22. The pressure value in the hydraulic circuit is output from the detection means 110 to the controller 91 as a pressure signal. Here, in the hydraulic motor 31 of the crusher 30 and the hydraulic motor 12 of the left and right lower traveling bodies 11, detection means 110 is provided on the inlet-side and return-side hydraulic circuits. The pressure value during both forward and reverse driving can be detected.
[0025]
In addition, the controller 91 is provided with a determination unit 92 configured by software such as a computer program, a command unit 93, and a storage unit (not shown) that stores the software and stores the detected pressure value as data. Yes.
[0026]
Based on the pressure signal from the detection unit 110, the determination unit 92 determines whether or not an abnormality has occurred in each work machine 11, 23, 30, 50, 60, 70, 80. Various methods are conceivable as such a determination method. In this embodiment, a predetermined abnormal pressure is compared with a pressure value obtained from the pressure signal, and the pressure value that has reached the abnormal pressure value is determined for a predetermined time. When it is continuously input, it is determined to be abnormal, and the work machine from which the pressure value is detected is determined to be abnormal. The pressure signal of the pressure value that has reached the abnormal pressure value is the abnormality detection information according to the present invention. On the other hand, when no abnormal pressure value is input, it is determined that such a working machine is normal.
[0027]
When the determination unit 92 determines that any one of the work machines 23, 30, 50, 60, 70, and 80 is abnormal, the command unit 93 includes an alarm device 94 such as a buzzer provided in the control unit 90, a vehicle A signal is output to a signal lamp or the like attached to the operator to notify the operator that there is an abnormality, and a signal is output to the control valves 102 to 108 so that the work machines 22, 23, 30, 50, 60, 70, 80 are Stop as appropriate.
[0028]
In addition, when there is an abnormal work machine, the command unit 93 of the present embodiment outputs a graphic display signal indicating that there is an abnormality as operation information, and even if the work machine is operating normally, Is output as operation information. In addition, the graphic display signal of the work machine that has detected an abnormality continues to be output even if the work machine returns to normal until the operator presses a “confirm” switch (not shown) or restarts the work machine that has been stopped due to an abnormality detection. . This is performed in order to maintain an abnormality display of the work machine in which an abnormality has occurred until the operator determines an abnormal work machine. These graphic display signals are output to a vehicle monitor (display means) 95 provided in the control unit 90, and are output to the operation information transmission unit 96 via the vehicle monitor 95.
[0029]
The vehicle monitor 95 is composed of a liquid crystal display, for example, and is disposed adjacent to a numeric keypad (not shown) of the control unit 90. In general, the vehicle monitor 95 schematically shows a plan view of the self-propelled crusher 1 as shown in FIG. In this plan view, a plurality of working machines constituting the self-propelled crusher 1, that is, the grizzly feeder 22, the side conveyor 23, the crusher 30, and the discharge conveyor 50 are also drawn in a figure. In addition, when the self-propelled crusher 1 is viewed in plan, the left and right lower traveling bodies 11 that are partially hidden by the grizzly feeder 22, the crusher 30, the power line 40, and the like are planes of the self-propelled crusher 1. Separately from the figure, it is divided into upper and lower parts and displayed. Such a figure can be arbitrarily drawn using computer software. In addition, the magnetic separator 60, the sieve 70, and the secondary conveyor 80 which are installed as needed are not used and are not displayed here.
[0030]
In the plan view of the self-propelled crusher 1, the operation information is displayed in a graphic form as circular display portions 111, 112, 113, 114, 115 at positions corresponding to the respective work machines 11, 22, 23, 30, 50. Has been. In the present embodiment, when the work machines 11, 22, 23, 30, 50 are operating normally, the display units 111 to 115 are lit in green (in FIG. 3). In the drawing, it is shaded instead of green) Further, when each of the work machines 11, 22, 23, 30, and 50 is normal and stopped, it is lit and displayed in white. However, in the work mode in which the grizzly feeder 22, the side conveyor 23, the crusher 30, and the discharge conveyor 50 are operating, the left and right lower traveling bodies 11 are stopped so that the traveling cannot be performed. The display unit 111 for the lower traveling body 11 is lit in white and displayed in a stopped state.
[0031]
Here, “W” is displayed on the upper left side of the vehicle monitor 95 so that the current working state of the self-propelled crusher 1 is the working mode. And although detailed description is abbreviate | omitted, as other modes in the self-propelled crusher 1, there are a travel mode, an inspection mode, etc., and the display according to each mode is made. For example, when the vehicle is in the traveling mode and traveling, the display unit 111 of the lower traveling body 11 displayed as a graphic changes to green, indicating that the vehicle is traveling. At this time, the display units 112 to 115 of the other work machines 22, 23, 30, and 50 become white indicating that they are stopped. The inspection mode is used when adjusting the exit gap in the crusher 30 or inspecting the state by inching each of the work machines 23, 30, and 50 by manual operation. Each mode is switched by a switch (not shown) of the control unit 90. Furthermore, in the lower traveling body 11 and the crusher 30, the hydraulic motors 12 and 31 may be driven in reverse, and in such a case, they are displayed in another color, such as a yellow lighting display.
[0032]
On the other hand, when such an abnormality occurs in the work machines 23, 30, 50 and it is determined that the hydraulic pressure of the hydraulic motors 27, 31, 51 has reached an abnormal pressure value, the operation information output from the command means 93. As a result, the display section of the abnormal working machine blinks in red. For example, when the reinforcing bar pierces the discharge conveyor 50 and it becomes impossible to rotate, when the inlet pressure of the hydraulic motor 51 for the discharge conveyor 50 increases and reaches an abnormal pressure, the determination means 92 is abnormal as described above. In addition to the alarm device 94 and the signal lamp being operated by the command means 93, the display unit 115 of the discharge conveyor 50 is changed to red lighting as shown in FIG. 4 according to the operation information from the command means 93 (FIG. 4). Then, it is displayed as a fill on the drawing). Moreover, since the instruction | indication means 93 stops the grizzly feeder 22, the side conveyor 23, and the crusher 30 simultaneously, these display parts 112, 113, and 114 change to white lighting. In this embodiment, since no detection means for detecting an abnormality in the grizzly feeder 22 is provided (see FIG. 2), it is determined whether or not the display unit 112 of the grizzly feeder 22 is operating. It only stays on display and does not change to red. However, a detection unit may be provided so that an abnormality can be detected, and the abnormality may be changed to red when an abnormality occurs.
[0033]
By the way, in FIG. 3, an input amount display unit 116 indicating the input amount of the raw material input into the crusher 30 is further displayed on the screen of the vehicle monitor 95. The input amount display unit 116 displays the input portion of the crusher 30 by dividing it into a plurality of levels (10 levels in the present embodiment) and displays the level of raw material input. In the case of FIG. 3, it is shown that the raw material is charged up to the level “6” position. The input amount of such raw materials is detected by an ultrasonic sensor or the like attached to the upper part of the crusher 30.
[0034]
At this time, an upper limit level and a lower limit level are set for the input amounts of raw materials, respectively, and are displayed on triangular setting display portions 117 and 118. The most efficient crushing can be performed by introducing the raw material between the upper and lower levels. That is, if crushing is repeated in a state where the input amount is too large, for example, the amount of crushing per hour is small for a large load on the hydraulic motor 31 of the crusher 30, and productivity and fuel consumption are poor. Then, if the charging is continued, the raw material may spill from the crusher 30. Even if crushing is repeated in a state where the input amount is too small, a small amount of raw material is crushed with an excessive crushing force, so that productivity is poor and fuel consumption is not good.
[0035]
In order to solve this, the controller 91 monitors the input from the ultrasonic sensor described above, and when the input amount exceeds the upper limit level, the controller 91 controls the control valve 102 so that the crusher 30 is fed from the grizzly feeder 22. The rotation speed of the hydraulic motor 26 is reduced or completely stopped so that the raw material is not supplied to the motor. When the crushing operation proceeds from this state, the raw material in the crusher 30 is reduced and the height level is lowered. However, when the lower level is exceeded, the controller 91 controls the control valve 102 to rotate the hydraulic motor 26. The number is restored and the supply of raw materials by the grizzly feeder 22 is resumed. By repeating this, the input amount of the raw material is maintained within a predetermined height level, and the optimum crushing efficiency is obtained.
[0036]
FIG. 5 shows such an input amount setting screen. That is, since the appropriate input amount to the crusher 30 varies greatly depending on the material of the raw material, in this embodiment, the upper limit level and the lower limit level of the input amount according to the type of raw material are set as the operating conditions of the crusher 30 It can be done. Specifically, for soft raw materials that can be easily crushed, the optimum input amount to be introduced into the crusher 30 is set to be large (the height is increased), and the hydraulic pressure is lowered to improve productivity and fuel consumption. In addition, for hard raw materials that are difficult to crush, the optimum input amount to be put into the crusher 30 is set to be small (the height is set low), the hydraulic pressure is also increased, the crushability is improved, and the productivity is improved. .
[0037]
This setting screen is switched by operating a specific numeric keypad or a separately provided function key. In the setting screen, a cross section of the crusher 30 is schematically shown on the left side of the figure, and the type of raw material to be crushed is displayed in the raw material input portion, and above and below it, The upper limit level and the lower limit level of the input amount corresponding to the type are displayed. Each level corresponding to this raw material is tabulated in advance and stored in the storage means in the controller 91. FIG. 5 shows a case where the type of raw material is a concrete block including a reinforcing bar or the like.
[0038]
And selection of a type is performed by selecting the 1st-3rd selection parts 121-123 currently displayed on the right side in a figure. In the present embodiment, as a part for selecting the type of raw material, a first selection unit 121 indicating rock, a second selection unit 122 indicating concrete, and a third selection unit 123 indicating asphalt are provided. By operating the arrow keys in the numeric keypad, the display units that can be selected are switched. In order to determine the selected raw material, the “determine” key may be pressed. By doing this, the type of raw material and each level are automatically displayed on the right side of the figure. In addition, as a kind of raw material, it is not limited above, You may enable it to distinguish a rock into a hard rock and a soft rock according to further hardness, and to select rocks according to a kind, such as andesite and granite.
[0039]
Returning to FIG. 2, the operation information transmission unit 96 has a function of converting display contents on the vehicle monitor 95 into image data and transmitting the image data to the operation information reception unit 97 on the loader 2 side. The image data received by the operation information receiving unit 97 is similarly displayed on the vehicle monitor 98 provided on the loader 2 side. Accordingly, the operator of the loader 2 can monitor the operation status of the self-propelled crusher 1 while performing the loading operation, and if an abnormality occurs in the crusher 30 or the discharge conveyor 50, It is possible to know the working machine in which an abnormality has occurred while staying in the loader 2. Here, the operation information receiving unit 97 and the vehicle monitor 98 on the loader 2 side have been described, but these are also installed in the management office at the crushing site so that the crushing operation can be monitored by the administrator. It may be.
[0040]
Further, in the present embodiment, a signal based on the operation status of the downstream device 99 is input to the controller 91. The downstream device 99 is configured by a working machine or the like that does not use the hydraulic pump 42 or the like of the self-propelled crusher 1 as a hydraulic source, for example, another self-propelled type disposed on the downstream side of the self-propelled crusher 1. Such as a crusher. That is, the crushed material crushed by the self-propelled crusher 1 shown in FIG. 1 is put into a downstream self-propelled crusher to obtain a crushed material having a smaller particle size. And when abnormality arises in the downstream self-propelled crusher, the signal enters into the controller 91 of the self-propelled crusher 1 on the upstream side, and the controller 91 receives each work machine 22 of the self-propelled crusher 1. , 23, 30, 50, etc. are stopped.
[0041]
According to this embodiment, there are the following effects.
(1) That is, according to the monitoring system described above, whether the lower traveling body 11, the grizzly feeder 22, the side conveyor 23, the crusher 30, the discharge conveyor 50, etc. are operating normally or abnormally. Since the information is displayed on the vehicle monitors 95 and 98 of the self-propelled crusher 1, the operation status of each of the work machines 11, 22, 23, 30, and 50 can be recognized based on the result determined as normal or abnormal, Compared to the case where the operating status is directly displayed on the monitor by the camera, the abnormal state can be reliably recognized. Further, since the operation information is displayed for each of the plurality of work machines 11, 23, 30, 50, it is possible to quickly and reliably recognize which work machine 11, 23, 30, 50 is a true abnormality occurrence location.
[0042]
(2) Since the display units 111, 112, 113, 114, and 115 showing the operation information are displayed together with the graphics of the work machines 11, 22, 23, 30, and 50, the work machines 11, 22, and 23 are visually recognized. , 30, and 50 can be intuitively grasped, and the location where an abnormality has occurred can be recognized accurately.
[0043]
(3) In particular, the lower traveling body 11 is originally partially hidden by the grizzly feeder 22, the crusher 30, or the power line 40 when the self-propelled crusher 1 is viewed in plan view. Since the traveling body 11 is displayed separately from the general view of the self-propelled crusher 1, even when a part of the traveling body 11 is hidden, the traveling body 11 can be displayed reliably and the visibility can be improved.
[0044]
(4) The operation information is displayed in green when the work machines 11, 23, 30 and 50 are operating normally, in white when stopped, and red when abnormal, indicating the difference in operation status. It is possible to clarify more clearly and avoid the confusion of workers.
[0045]
(5) In addition to the vehicle monitor 95 of the self-propelled crusher 1, the operation information is also displayed in the same manner on the vehicle monitor 98 of the loader 2. Can be stopped. Moreover, since it is not necessary for the operator of the self-propelled crusher 1 to notify the operator of the loader 2 of the occurrence of an abnormality, the operator can also serve as the operator and promote the reduction of manpower.
[0046]
(6) Since the operating conditions related to the input to the crusher 30 can be set on the setting screen, the crusher 30 can be operated with the optimum input according to the type of raw material, and it is possible to reliably handle the difference in type and versatility. And the crushing efficiency can be improved.
[0047]
(7) Since the controller 91 is provided with a determination means 92 for determining normality / abnormality based on the hydraulic pressure of each of the work machines 11, 23, 30, 50, 60, 70, 80. It is possible to prevent an erroneous determination of an abnormal state without depending on a specific determination. In addition, since the command means 93 is provided, even when the worker is not aware of the abnormal state, a command or the like for automatically stopping the work machines 11, 22, 23, 30, 50, 60, 70, 80 is output. The alarm device 94 can be operated, and further troubles caused by leaving the abnormal state for a long time can be prevented. Therefore, a highly reliable system can be constructed.
[0048]
(8) Further, since the controller 91 inputs a signal from the downstream device 99, even if a work machine driven by a hydraulic source different from the hydraulic source of the self-propelled crusher 1 is arranged on the downstream side, When an abnormality occurs in such a work machine, the abnormality can be detected and the work machines 11, 22, 23, 30, 50, 60, 70, 80, etc. of the self-propelled crusher 1 can be stopped, It is possible to immediately stop the crushed material from the type crusher 1 being discharged to the working machine in which an abnormality has occurred on the downstream side.
[0049]
(9) The figure of the self-propelled crusher 1, the lower traveling body 11, the grizzly feeder 22, the side conveyor 23, the crusher 30, and the discharge conveyor 50 constituting the figure, and the display units 111, 112, 113. , 114, 115 are drawn using computer software and can be arbitrarily changed. For example, even when the magnetic separator 60, the sieve 70, or the secondary conveyor 80 is retrofitted, as shown in FIG. Can be easily added. That is, a graphic file drawn including these work machines 60, 70, and 80 and their display units 131, 132, and 133 is prepared in advance and stored in the storage means. It can be used by calling it, and it can be easily handled without changing the hardware. Such graphic files can be stored in the storage means, and can be downloaded and handled as necessary.
[0050]
In addition, this invention is not limited to the said embodiment, Including other structures etc. which can achieve the objective of this invention, the deformation | transformation etc. which are shown below are also contained in this invention.
For example, in the above-described embodiment, the hydraulic pressure of each work machine 11, 23, 30, 50, 60, 70, 80 is detected by the detection means 110 such as a pressure sensor, but only the detection means that detects the hydraulic pressure. Alternatively, for example, the rotational speed of the hydraulic motors 12, 27, 31, 51, 61, 71, 81 may be detected.
[0051]
In the setting screen of the above embodiment, the optimum input amount according to the type of raw material can be set. In addition, the normality and abnormality of the work machines 11, 23, 30, 50, 60, 70, and 80 are determined. The upper limit value and the lower limit value of the pressure value at the time of determination may be arbitrarily set, and setting of such a determination criterion is also included in the setting of the operating condition of the present invention.
[0052]
In the said embodiment, one display part 111,112,113,114,115,131,132,133 was provided with respect to each working machine 11,22,23,30,50,60,70,80. However, in the case where a plurality of hydraulic motors are used in one work machine, a plurality of display units may be provided and displayed in a graphic form, so that it is possible to determine which part of the work machine has an abnormality. Recognize instantly.
[0053]
In the said embodiment, although the figure of the lower traveling body 11 was drawn separately from the top view of the self-propelled crusher 1 whole, and these were displayed on the same screen, the lower traveling body drawn separately Eleven figures may be displayed on a screen different from the self-propelled crusher 1, and these display screens may be arbitrarily switched.
Moreover, in the said embodiment, although the self-propelled crusher 1 whole was displayed with the top view, the self-propelled crusher 1 whole is displayed with an elevation, or it displays with a three-dimensional figure (perspective view) etc. The display form may be determined as appropriate in the implementation.
[0054]
In the said embodiment, although the crushing work was performed using the self-propelled crusher 1, the monitoring system of this invention is applicable also to the crushing work in the crushing plant etc. which used the stationary crusher.
[0055]
In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the present invention has been illustrated and described with particular reference to particular embodiments, but without departing from the spirit and scope of the present invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations.
Therefore, the description limited to the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.
[Brief description of the drawings]
FIG. 1 is an external view showing a self-propelled crusher and a loader to which a crushing monitoring system according to an embodiment of the present invention is applied.
FIG. 2 is a diagram showing a hydraulic circuit and a control unit of the self-propelled crusher.
FIG. 3 is a diagram showing a display screen when the work machine in the work mode is normal.
FIG. 4 is a diagram showing a display screen when an abnormality occurs in the work machine in the work mode.
FIG. 5 is a diagram showing a setting screen.
FIG. 6 is a diagram showing a display screen when the number of work machines is increased.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Lower traveling body (work machine), 22 ... Grizzly feeder (work machine), 23 ... Side conveyor (work machine), 30 ... Crusher (work machine), 50 ... Discharge conveyor (work machine), 60 ... Magnetic separator (Work machine), 70 ... sieve (work machine), 80 ... secondary conveyor (work machine), 92 ... determination means, 93 ... command means, 95, 98 ... vehicle monitor (display means), 110 ... detection means, 111 , 112, 113, 114, 115, 131, 132, 133... Display unit.

Claims (5)

In the crushing monitoring system,
A plurality of work machines (11), (22), (23), (30), (50), (60), (70), (80) used in a series of crushing operations are normal and / or While detecting whether it is abnormal, it corresponds to each of the plurality of work machines (11), (22), (23), (30), (50), (60), (70), (80). Detecting means (110) provided by
When the abnormality detection information from these detection means (110) is detected for a predetermined time, it is determined that the corresponding work machine is abnormal, and when the abnormality detection information is less than the predetermined time, the determination is normal. Means (92);
Command means (93) for outputting command information for a predetermined work machine based on the judgment result of the judgment means (92);
A crushing work monitoring system, comprising display means (95) and (98) for displaying a plurality of determination results of the determination means (92) as operation information. In the crushing monitoring system according to claim 1,
The operation information is displayed in graphic form together with the normal and / or abnormal work machine graphic. In the crushing monitoring system according to claim 2,
The other work machine (11) partially or entirely blocked by the work machine (22), (23), (30), (50), (60), (70), (80) is the work machine. (22), (23), (30), (50), (60), (70), (80) are displayed separately from the crushing monitoring system In the monitoring system according to any one of claims 1 to 3,
The operation information indicating normality and the operation information indicating abnormality are displayed in different colors. In the monitoring system of the crushing work in any one of Claims 1 thru | or 4,
The crushing work monitoring system, wherein the display means (95) and (98) graphically display a setting screen for setting operating conditions of the work implement.

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