JP5147486B2 - Service support system for garbage truck - Google Patents

Description

  The present invention relates to a service support system for garbage trucks.

  Conventionally, a dust storage box mounted on the vehicle body and having a rear opening, a dust input box connected to the rear opening of the dust storage box, and a dust input box provided in the dust input box and input into the dust input box There is known a system for supporting the service of a garbage truck including a dust loading device for loading the collected dust into the dust storage box and at least a hydraulic device for driving the dust loading device.

  This kind of garbage truck has a wide range of usage conditions for users ranging from those that operate several hours a day to those that operate all day. In addition, due to the increase in capacity of the dust container and continuous work for a long time, the load on the equipment becomes larger than before, and failure is likely to occur.

Therefore, for example, in the failure diagnosis method of Patent Document 1, the input signal and output signal of the control unit when a failure occurs are stored in the memory of the control unit, and the data in this memory can be read out by connecting to the computer from the outside. In this way, the image is processed by an external computer and compared with a value indicating a normal state, and is displayed on the screen. For example, in a garbage collection vehicle of a rotary plate type loading device, the memory when a failure occurs in the forward rotation completion switch of the conveyor panel is stored in the first to fourth phases indicating a series of loading operations. Each input signal and output signal is stored, processed by connecting an external computer, and it can be immediately judged from the comparison between this state and the normal operation state that a failure has occurred in the conveyor panel and the normal rotation completion switch. .
JP-A-2005-320134

  However, the failure diagnosis method of Patent Document 1 is for finding a failure location after the failure has occurred, and not for preventing the failure.

  On the other hand, the display of the replacement time of the regular replacement parts and the timing of grease up is uniform. For example, the hydraulic oil is changed every six months, the hydraulic hose is changed every two years, and the grease up is displayed as weekly or weekly depending on the site.

  For this reason, in a high operation vehicle, there is a possibility that a failure may occur even though regular replacement and maintenance are performed as indicated. Also, since it is troublesome for the user to bother to report the state of the garbage truck to the service center, the service center cannot grasp the user's operating status in real time, so it cannot issue a warning before it breaks down. In addition, there is a problem that the failure cannot be prevented in advance, or whether the cause of the failure is caused by an overload of the user cannot be clearly understood.

  The present invention has been made in view of such a point, and the object of the present invention is to enable advance service by grasping the operation status and maintenance status of the garbage truck in real time, and design specifications. It is possible to prevent a failure by generating a warning before a failure occurs for a user who is used in an overload state exceeding.

  In order to achieve the above object, in the present invention, the operating state and maintenance state of the garbage truck are transmitted to the analyzing means in real time for analysis.

Specifically, in the first invention,
A garbage storage box mounted on the vehicle body and having a rear opening;
A dust input box connected to the rear opening of the dust storage box;
A dust loading device that is provided in the dust throwing box and loads the dust thrown into the dust throwing box into the dust storage box;
The present invention is directed to a system that supports a service of a garbage truck including at least a hydraulic device that drives the garbage loading device.

And the service support system for the garbage truck is
A hydraulic device provided in the garbage truck and driving at least the dust loading device;
A control unit that is provided in the garbage collector and controls the hydraulic device, and collects the operating status of the hydraulic device;
Transmitting means for transmitting information collected by the control unit;
Receiving means for receiving information transmitted from the transmitting means;
Stored in the service center, customer information consisting of the route to be collected, the type of garbage, etc. is stored in advance, and the operating status, the parts requiring maintenance and the maintenance history are stored from the customer information and the information received by the receiving means. And an information terminal for analysis.

According to the above configuration, the transmission means transmits the maintenance information and operation status of the garbage truck collected by the control unit, the reception means receives it, the analysis means reads it, and the replacement timing of the regular replacement parts and the timing of grease up are determined. calculate. When the operating conditions are severe, the replacement timing and grease up timing are calculated short. On the other hand, when the operating condition is moderate, the replacement time is calculated longer. In the service center or the like, the calculated replacement time and the like are grasped by the analysis means, so that it is possible to provide maintenance guidance in accordance with the operation status, and failure is reduced. Further, by determining that the analysis unit is one step ahead of the overload operation from the operating status, it is possible to issue a warning to the user not to perform the overload operation. In addition, it is possible to prevent the load from being biased only to specific garbage trucks from the analysis results, and to prevent maintenance deficiencies by grasping the maintenance history and performing maintenance at an appropriate time. . Furthermore, when a failure occurs, it is possible to determine whether or not the cause of the failure is an overload operation from the history of operating conditions transmitted from the control unit. In addition, by grasping the history of operation status and the number of warnings, it can be used effectively as a material for the development and quality improvement of garbage trucks . And since the operating status and maintenance information of each garbage truck can be obtained at the service center, it is possible to respond quickly and accurately. Further, by storing the transmitted information, it becomes possible to grasp maintenance information and usage status of each user at any time. Furthermore, it is possible to grasp user-specific usage conditions from customer information consisting of collection routes, garbage types, etc. stored in advance in the information terminal of the service center, and from the usage conditions and information collected by the control unit, Appropriate maintenance services can be provided .

As described above, according to the present invention, the information collected by the control unit mounted on the garbage truck is transmitted by the transmission means, and is stored in advance in the information terminal of the service center. It becomes customer information analysis means and a received information by the receiving unit operation status, by which is adapted maintenance to analyze the site and maintenance history required, user-specific use conditions from the customer information, refuse collection vehicles operating status In addition, the maintenance status can be grasped in real time to enable proactive service, and a warning is issued before a failure occurs to a user who is using it in an overload condition that exceeds the design specifications to prevent the failure. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show a refuse collection vehicle 1 according to an embodiment of the present invention, and a dust storage box 3 is mounted on a vehicle body 2 of the dust collection vehicle 1. In the rear opening 4 of the dust container 3, there is provided a dust throwing box 6 pivotally supported by a throwing box support pin 5 above. This dust throwing box 6 is configured to be rotatable around a throwing box support pin 5 by a rotating cylinder 9 shown in FIG. 1 provided between the dust container 3 and the dust throwing box 6.

  The garbage collection vehicle 1 includes a power take-off device (PTO) 52 (shown in FIG. 8) driven by the engine 40 of the vehicle body 2. The hydraulic device 30 is driven by the power of the power take-out device 52.

  A throwing port 7 is opened at the rear of the dust throwing box 6, and a dust loading device 20 is provided in the inside. The dust loading device 20 is for compressing and loading the dust 55 put into the dust throwing box 6 through the filling port 7 into the dust containing box 3.

  As shown also in FIG. 3, guide groove members 8 are laid on both side walls of the dust box 6 from the front upper part toward the rear lower part also serving as a reinforcing frame. A sliding plate 10 that extends to the full width is accommodated in the dust box 6. Guide rollers 11 are rotatably provided above and below both side edges of the sliding plate 10. These guide rollers 11 are slidably fitted along the inner wall of the guide groove member 8.

  A sliding plate support shaft 12 is inserted through a boss portion 19 provided at the left and right end portions of the upper portion of the back surface of the sliding plate 10. The sliding plate support shaft 12 matches the sliding distance of the sliding plate 10 so as to protrude beyond the inside of the dust throwing box 6 beyond the sliding opening 6 a formed on the side wall of the dust throwing box 6. Has been placed.

  Sliding provided between the sliding plate support shaft 12 projecting outward from the side wall of the dust input box 6 and the lower part of the dust input box 6 along the inclination direction of the guide groove member 8 outside the dust input box 6. A cylinder 13 is connected. The sliding cylinder 13 includes a rod-shaped cylinder rod 13 a and a cylindrical cylinder tube 13 b attached to the side wall of the dust box 6. The sliding plate 10 is reciprocated up and down along the guide groove member 8 by the expansion and contraction operation of the sliding cylinder 13.

  As shown in FIG. 2, at the lower end of the sliding plate 10, a compression plate 15 that extends to the full width of the dust box 6 is supported so as to be swingable back and forth. The tip of the compression plate 15 is slightly bent toward the front. A swing cylinder 14 is connected between a connecting portion 15a projecting from the back surface of the compression plate 15 and a slide plate support shaft 12 provided at the upper back of the slide plate 10. The compression plate 15 is swung back and forth by an expansion / contraction operation 14.

  With this configuration, as shown in FIGS. 4 to 7, the dust loading device 20 is configured such that the sliding plate 10 and the compression plate 15 are reversed by the expansion and contraction operations of the sliding cylinder 13 and the swing cylinder 14. By operating as one cycle of descending, compressing and ascending, the dust 55 put into the dust throwing box 6 through the throwing port 7 is loaded into the dust containing box 3.

  As shown in FIG. 1, the dust container 3 is provided with a discharge device 18 that is driven by the hydraulic device 30 and discharges the dust in the dust container 3. Specifically, a discharge plate 17 is disposed in the dust container 3 so as to be slidable in the front-rear direction. The discharge plate 17 is a plate-like body formed to have substantially the same width and height as the dust storage box 3 and slides back and forth in the dust storage box 3 by the expansion and contraction operation of the discharge cylinder 16. ing.

  As shown in FIG. 8, the hydraulic device 30 includes a hydraulic pump 51 that is driven by the power take-out device 52. The dust loading device 20, the discharge device 18, and the like are driven by the hydraulic pump 51.

  As shown in FIGS. 8 to 11, the garbage truck 1 includes a control unit 31, and the control unit 31 includes the main controller 50. The main controller 50 controls the dust loading device 20, the discharge device 18, the hydraulic equipment 30, and the like, and collects and temporarily stores the operating status of the hydraulic equipment 30.

  The garbage truck 1 is equipped with a transmitter 80 as transmission means for transmitting information collected by the control unit 31. The transmitter 80 includes a communication terminal such as a mobile phone, a wireless device, and a car navigation system equipped with a GPS, and is configured to be able to automatically send and receive electronic mail.

  The service center is provided with a receiver 81 as a receiving means for receiving information transmitted from the transmitter 80. This receiver 81 is assumed to be capable of transmitting / receiving to / from the transmitter 80. For example, the receiver 81 may be a mobile phone itself or a device connected to an Internet line.

  The service center is further provided with an information terminal 82 as an analysis means for analyzing the operation status, the part requiring maintenance, and the maintenance history from the information received by the receiver 81. The information terminal 82 is composed of a PC, a workstation or the like. The information terminal 82 stores customer information including a route to be collected in advance, a kind of garbage, and the like. If the received information is by e-mail, the information terminal 82 may be in a state where it can always send and receive e-mail via the receiver 81.

-Hydraulic equipment configuration-
FIG. 8 shows a hydraulic circuit 61 of the hydraulic equipment 30 of the garbage truck according to the present embodiment. As shown in the figure, in the hydraulic device 30, four types of cylinders 9, 13, 14, and 16 are hydraulically controlled.

  Each cylinder 9, 13, 14, 16 is connected to a control valve 63 via a hydraulic pipe 61c. The control valve 63 includes a plurality of solenoid valves (not shown), and supplies hydraulic oil discharged from the hydraulic pump 51 to a desired cylinder by switching the opening and closing ports of the solenoid valves. Switching of the expansion / contraction operation of the cylinder rod is controlled, or the operation is stopped.

  The hydraulic device 30 includes a hydraulic tank 62 that stores hydraulic oil, and is configured to suck up the hydraulic oil in the hydraulic tank 62 by the hydraulic pump 51 and distribute the hydraulic oil to the supply-side hydraulic pipe 61 a and supply it to the control valve 63. ing. The hydraulic fluid that has passed through the control valve 63 flows through the recovery-side hydraulic pipe 61 b, is filtered by the return filter 64, and is then recovered by the hydraulic tank 62 again. The control valve 63 includes a pressure sensor 65 that is controlled by the main controller 50 and measures the hydraulic pressure in the hydraulic circuit 61 that is the main circuit (for example, the pressure in the hydraulic pipe 61a). In addition, the control valve 63 includes a pressure switch 66 that reacts when a specific part (for example, the swing cylinder 14) exceeds a predetermined hydraulic pressure. In addition, an oil temperature sensor 67 that detects the oil temperature toward the hydraulic tank 62 is provided in front of the return filter 64.

-Action of control unit-
The main controller 50 controls the power take-out device 52, the dust loading device 20, the discharge device 18, etc., each time the operation time of the power take-out device 52, the operation time and cycle number of the dust load device 20, the discharge device 18. The operation time and the number of operations are transmitted to the control unit 31 and temporarily stored.

  Further, the detected pressure value is transmitted from the pressure sensor 65 to the control unit 31. As a result, the number of times the hydraulic pressure exceeds a predetermined value is counted.

  Further, the pressure switch 66 reacts when the pressure exceeds a predetermined level, and a signal is transmitted to the control unit 31. As a result, the number of actuations of the pressure switch 66 is counted.

  Further, the oil temperature detected by the oil temperature sensor 67 is transmitted to the control unit 31. As a result, the number of oil temperature rises and the peak value of the oil temperature are recorded.

  In addition, the number of times an alarm is issued when the hydraulic pressure, oil temperature, etc. exceed a predetermined limit value is transmitted to the control unit 31 and temporarily recorded.

  The transmitter 80 transmits the data temporarily recorded in the control unit 31 to the receiver 81 of the service center. The transmission timing is required while the control unit 31 is operating, at regular intervals, at a certain interval, or before the overload, or when it is in an operating state that may require maintenance. The timing is not particularly limited. The transmission method is performed, for example, by transmitting an e-mail using a mobile phone line.

  Information by e-mail or the like transmitted by the transmitter 80 is received by the receiver 81 of the service center, and the information is sent to the information terminal 82. The information terminal 82 reads the operating status of the hydraulic device 30 transmitted by the transmitter 80, and calculates the replacement timing of the regular replacement parts and the timing of grease up. If customer information including the collection route, garbage type, etc. is stored in the information terminal 82 in advance, the user-specific usage conditions can be grasped, and the usage conditions and the control unit 31 are temporarily stored. From this information, appropriate maintenance services can be provided.

  Specifically, since the power take-out device 52 transmits the driving force of the engine of the garbage truck 1 to the hydraulic equipment 30, the operating time of the hydraulic equipment 30 is detected by detecting the operation time of the power take-out device 52. Is calculated. For this reason, the information terminal 82 reads and analyzes the operation time of the power take-out device 52 (for example, the on-time of the main power supply of the power take-out device 52) collected and transmitted by the control unit 31 to obtain the hydraulic pressure. In accordance with the operating status of the device 30, the replacement timing of the regular replacement parts of the hydraulic device 30 and the timing of grease up are calculated. Knowing the results of this calculation will reveal when parts need to be replaced or greased. When the operation time of the power take-out device 52 exceeds a certain time, the information terminal 82 determines that it is one step before the overload state, and notifies the user that the overload operation by the user is avoided. By analyzing the history of the operation time of the power take-out device 52, it is possible to determine whether or not the cause of the failure is an overload.

  Furthermore, in order to monitor in detail, the information terminal 82 reads and analyzes the number of cycles of the dust loading device 20 collected and transmitted by the control unit 31, thereby operating the dust loading device 20. At the same time, the replacement timing and grease up timing of the periodic replacement parts for driving the dust loading device 20 are calculated. Knowing the results of this calculation will reveal when parts need to be replaced or greased. When the number of cycles of the refuse loading device 20 exceeds a certain number, the information terminal 82 determines that it is one step ahead of the overload state and notifies the user, thereby preventing overload operation by the user and the service center. By analyzing the history of the cycle number of the dust loading device 20, it is possible to determine whether or not the cause of the failure is an overload.

  In addition, the information terminal 82 reads and analyzes the number of operations of the discharge device 18 collected by the control unit 31 and transmitted, for example, the number of reciprocations of the discharge cylinder 16, thereby matching the operation status of the discharge device. The replacement timing and grease-up timing of the periodic replacement parts that drive the discharging device 18 are calculated. Knowing the results of this calculation will reveal when parts need to be replaced or greased.

  In addition, by reading and analyzing the number of times the pressure switch 66 of the control valve 63 has reacted when the hydraulic pressure exceeds a predetermined value or the number of times the hydraulic pressure detected by the pressure sensor 65 exceeds the predetermined value, the operating status of the hydraulic equipment 30 can be determined. At the same time, the replacement timing and grease up timing of the periodic replacement parts of the hydraulic equipment 30 are calculated. Knowing the results of this calculation will reveal when parts need to be replaced or greased. When the number of times that the hydraulic pressure exceeds a predetermined value exceeds a certain time, the information terminal 82 determines that it is one step before the overload state, and notifies the service center. By analyzing the history of the number of times the hydraulic pressure detected by the pressure sensor 65 exceeds a predetermined value, it is possible to determine whether or not the cause of the failure is an overload. Further, by analyzing the history of the number of times the pressure switch 66 of the control valve 63 has reacted, the properties of the dust can be specified, and the cause of the failure specific to the input dust can be estimated at the service center.

  Further, the information terminal 82 reads and analyzes the records collected and transmitted by the control unit 31 and the number of times the oil temperature detected by the oil temperature sensor 67 exceeds a predetermined value and the limit value, In accordance with the operation status of the hydraulic equipment 30, the replacement timing of the regular replacement parts of the hydraulic equipment 30 and the timing of grease up are calculated. Knowing the results of this calculation will reveal when parts need to be replaced or greased. When the number of times exceeding the limit value exceeds a certain time, the information terminal 82 determines that it is one step before the overload state and notifies the user, thereby avoiding overload operation by the user, By analyzing the number of times the oil temperature detected by the temperature sensor 67 exceeds a predetermined value or the record history of exceeding the limit value, it is possible to determine whether or not the cause of the failure is an overload.

  As described above, the information terminal 82 calculates the replacement time and the grease up time short when the operating condition is severe. On the other hand, when the operating condition is moderate, the replacement time is calculated longer. Then, the information terminal 82 analyzes the information from the control unit 31, so that it is possible to easily grasp the operating status of the garbage truck 1 and perform maintenance in accordance with the operating status, thereby reducing failure. Further, by analyzing that the information terminal 82 is one step before the overload operation from the operation status, it is possible to indicate to the user not to perform the overload operation. For example, when the transmitter 80 receives an overload prevention signal, an alarm device (not shown) of the garbage truck 1 may issue an alarm.

  In addition, it is possible to prevent inadequate vehicle management by ensuring that the load is not biased only to a specific garbage collection vehicle, or by maintaining the maintenance history at an appropriate time. Furthermore, when a failure occurs, it is possible to determine whether or not the cause of the failure is an overload operation from the history of operating conditions transmitted from the control unit 31.

  Furthermore, the user can be assured that the service center always checks the condition of the vehicle. For this reason, the user can be further enclosed.

-Effect of the embodiment-
Therefore, according to the garbage truck 1 according to the present embodiment, the information collected by the control unit 31 mounted on the garbage truck 1 is transmitted by the transmitter 80, and the information terminal 82 is operated from the information received by the receiver 81. By analyzing the parts that require maintenance and the maintenance history, it is possible to grasp the operation status and maintenance status of the garbage truck 1 in real time, enabling advanced service, and exceeding the design specifications. It is possible to prevent a failure by generating a warning before a failure occurs to a user who is using the load.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the above embodiment, the number of operations of the rotating cylinder 9 is not monitored, but the number of operations of the rotating cylinder 9 may be monitored by the control unit 31 as in the discharge device 18 of the above embodiment. Good.

  Although not shown, the dust container 3 may be configured to be tiltable (can be dumped) around the tilting axis behind the vehicle body 2 by expanding and contracting a tilting cylinder as a tilting device provided in the vehicle body 2. . In this case as well, the number of dumps by the tilting cylinder may be monitored by the control unit 31 as in the discharge device 18 of the above embodiment.

  In the above embodiment, the dust loading device 20 is a compression type equipped with the sliding plate 10 and the compression plate 15. However, as shown in FIG. The rotating plate 115 includes a rotating plate 115 provided at the bottom so as to be rotatable about the base end, and a push plate 110 provided on the upper portion of the rotating plate 115 so as to be swingable by a swing cylinder 113. You may comprise so that the dust 55 thrown into the said dust input box 6 may be compressed and loaded in the dust storage box 3 by cooperation with rotation operation and the rocking | fluctuation operation | movement of the pushing board 110. FIG. In this case, the operating status of the hydraulic device 30 monitored by the control unit 31 is the number of times the pushing plate 110 is pushed. According to this configuration, the information terminal 82 reads and analyzes the number of times the pushing plate 110 of the dust loading device 120 has been collected and transmitted by the control unit 31 to analyze the operation status of the dust loading device 120. At the same time, the replacement timing and grease up timing of the periodic replacement parts that drive the dust loading device 120 are calculated. Knowing the results of this calculation will reveal when parts need to be replaced or greased. When the number of pushing of the pushing plate 110 of the dust loading device 120 exceeds a certain number of times, the information terminal 82 determines that it is one step before the overload state, and an overload operation by the user is avoided. In addition, the service center can determine whether or not the cause of the failure is an overload by analyzing the history of the number of times the pushing plate 110 of the dust loading device 120 is pushed.

  In the above embodiment, the communication terminal is a portable PC. However, the communication terminal may have a transmission / reception function such as a PDA, a mobile phone, and a mobile tool, or may simply transmit.

  In the above embodiment, the receiver 81 and the information terminal 82 are arranged in the service center. However, the receiver 81 and the information terminal 82 may be arranged in a quality control department in the manufacturing plant of the garbage truck 1. Thus, by storing and analyzing the information sent from the control unit 31, a specific plan for product development and quality improvement can be obtained.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

It is a side view of the garbage truck concerning the embodiment of the present invention. It is the sectional side view which expanded the rear part of the refuse collection vehicle and was seen from the side. It is a side view which expands and shows the sliding cylinder and its periphery in a dust input box. It is the schematic explaining the raising end position of a refuse loading apparatus. It is the schematic explaining the inversion end position of a refuse loading apparatus. It is the schematic explaining the descent | fall end position of a refuse loading apparatus. It is the schematic explaining the state of the foremost position of a refuse loading apparatus. It is a hydraulic circuit diagram of a garbage truck. It is a block diagram which shows the monitoring system | strain of a control unit. It is a schematic diagram which shows the monitoring function by a controller. It is a schematic diagram which shows the monitoring function by a controller. It is the sectional side view which expanded the rear part of the garbage collection vehicle provided with the rotary dust loading device concerning other embodiment, and was seen from the side.

DESCRIPTION OF SYMBOLS 1 Dust collection vehicle 2 Car body 3 Dust storage box 4 Rear opening 18 Discharge device 20 Dust loading device 30 Hydraulic equipment 31 Control unit 52 Power take-out device 55 Dust 65 Pressure sensor 66 Pressure switch 67 Oil temperature sensor 80 Transmitter )
81 Receiver (Receiving means)
82 Information terminal (analysis means)
110 Pushing plate 113 Swing cylinder 115 Rotating plate 120 Dust loading device

Claims (1)

A garbage storage box mounted on the vehicle body and having a rear opening;
A dust input box connected to the rear opening of the dust storage box;
A dust loading device that is provided in the dust throwing box and loads the dust thrown into the dust throwing box into the dust storage box;
A system that supports the service of a garbage truck including at least a hydraulic device that drives the garbage loading device,
A control unit that is provided in the garbage collector and controls the hydraulic equipment, and collects the operating status of the hydraulic equipment;
A transmission means mounted on the garbage collection vehicle for transmitting information collected by the control unit;
Receiving means for receiving information transmitted from the transmitting means;
Stored in the service center, customer information consisting of the route to be collected, the type of garbage, etc. is stored in advance, and the operating status, the parts requiring maintenance and the maintenance history are stored from the customer information and the information received by the receiving means. A service support system for a garbage truck characterized by comprising an information terminal for analysis.

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