JPH04140205A - Load weight calculating device for garbage wagon - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a loaded weight calculation device for a garbage collection vehicle that calculates the loaded weight of garbage loaded in a garbage storage box and displays it on a display device.

(Prior art) Conventionally, a garbage input box is connected to the rear of the garbage storage box, and a loading device is provided inside the garbage input box to load the garbage thrown in from the input port of the garbage input box. A garbage collection vehicle is known in which garbage is packed into a garbage storage box by a loading device.

(Problem B to be solved by the invention) However, in the conventional garbage collection vehicle described above, the amount of garbage packed in the garbage storage box is currently determined by the intuition of the worker. If you mistakenly pack more garbage than the specified loading capacity, there will be problems such as damage to the loading device, garbage storage box, etc.
Furthermore, if the amount of garbage is judged to be full before the amount is full, there will be a problem that the efficiency of garbage collection will decrease.Furthermore, as mentioned above, it is difficult to accurately grasp the loading ratio of garbage in the garbage storage box. If this could not be done, it would not be possible to ascertain the loaded weight, which would lead to a danger of exceeding the loaded weight.

(Means for Solving the Problems) The loaded weight calculation device for a garbage collection vehicle of the present invention is a garbage collection vehicle in which a garbage receiving box is connected to the rear of the garbage receiving box, and a loading device is provided in the garbage receiving box. The collection vehicle includes a pressure detector that detects a load acting on the loading device when the loading device loads garbage into the garbage storage box, and loading garbage into the garbage storage box based on the detected value by the pressure detector. A control unit that calculates a ratio and calculates a loaded weight from this loading ratio based on various preset specific gravity corresponding to the type of garbage, and a display device that displays the loading ratio and the loaded weight. It is.

(Function) The detected value detected by the pressure detector is input to the control unit, and the control unit calculates the loading ratio of garbage to the garbage storage box based on this detected value. The loaded weight is calculated based on various set specific gravity corresponding to the type. Then, these loading ratios and loading weights are displayed on the display device.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a garbage collection vehicle according to the present invention.

In the figure, ■ is a garbage storage box mounted on the frame of a garbage collection vehicle, and a garbage input box 2 with an open front is connected to the rear opening of the garbage storage box 1 so as to be tiltable by a pivot 4. It is set up. The garbage input box 2 is equipped with a loading device 3, and the loading device 3 pushes the garbage input from the input port 2a provided on the back side of the garbage input box 2 into the garbage storage box l. It is composed of

The loading device 3 is composed of a swingable push plate 5 and a rotatable rotary plate 6. The push plate 5 is configured to be swingable about a pivot shaft 5a by a swing cylinder 7 provided between its upper part and the upper part of the garbage input box 2. Further, the rotary plate 6 is configured to be rotatable about a pivot shaft 6a by a drive device such as a hydraulic motor (not shown). and,
By swinging the push plate 5 according to the rotation of the rotary plate 6,
After the garbage thrown in from the input port 2a is crushed and compressed by a rotary plate 6, it is stuffed into the garbage storage box 1 by a pushing plate 5. When discharging the garbage packed in the garbage storage box l, after lifting the garbage input box 2 upwards around the pivot 4, tilt the garbage storage box 1 upwards around its rear lower part, Discharge the garbage in the garbage storage box l.

The operating states of the push plate 5 and the rotary plate 6 are detected by a plurality of limit switches 13 (see Figure 2) placed at appropriate locations, and based on the detected information, the loading/discharging control device described later is activated. The operation is controlled by (control unit).

Reference numeral 8 in the figure is a partition plate disposed between the upper part of the garbage input box 2 and the vicinity of the upper part of the pushing plate 5, so that the garbage stuffed into the garbage storage box 1 is directed to the swinging sill 7 side. It is designed to prevent intrusion.

Figure 2 shows the control system of the garbage collection vehicle.

In FIG. 2, 10 is a loading/discharging control device. The loading/discharging control device 10 receives operation signals from a pushbutton switch 11 and a toggle switch 12, and also receives detection signals from each limit switch 13 that detects the operating state of the pushing plate 5 and rotating plate 6. Furthermore, a detection signal from a fuse detector 14 that detects whether or not the fuse is connected or disconnected is input.

The pushbutton switch 11 and the toggle switch 12 are used to operate the loading device 3 and stop it in an emergency, and an appropriate number of them are arranged on an operating device placed at a suitable location on the garbage collection vehicle. Therefore, by operating the pushbutton switch 11 and the toggle switch 12, these operation signals are input to the loading and discharging control device 10, and the loading and discharging control device 10 outputs them to each solenoid valve 15 based on each operation signal. , the operation of the loading device 3 is controlled by switching and controlling each solenoid valve 15.

In addition, the loading/discharging control bag W10 includes an oil pressure sensor 21,
Detection signals from an oil temperature sensor 22, a pump rotation sensor 23, and a travel speed sensor 24 are input. The loading/discharging control device 10 determines whether or not there is an abnormal state based on the detection values of these sensors 21 to 24 and the detection signal of the fuse detector 14, and outputs an output to the solenoid valve 15 when it is abnormal. At the same time, the operation of the built-in device 3 is stopped, and an output is output to the lamp 16 and the buzzer 17 to make the lamp 16 turn on or blink, and the buzzer 17 sounds.

Further, in addition to the information provided by the limit switches and sensors described above, the loading and discharging control device 10 receives information regarding the operation of the garbage collection vehicle and the garbage collection work by an engine rotation sensor and the like.

In the loading/discharging control device 10 to which each piece of information is input in this way, various calculations are performed based on this information. Examples of this calculation include the total mileage, operating time, number of times of loading, number of times of discharging, total number of engine revolutions, number of times of operation for refueling time, and total loaded weight.

In addition, the loading and discharging control device 10 sends a display signal to the display device 3 for displaying the operating state and abnormality contents of the loading device 3 based on the input information and the calculated results.
It is outputting to 0. Data is transmitted from the loading/discharging control bag flo to the display device 30 by serial communication.

The display device 30 is placed in a place where a worker can easily see it, such as the driver's seat of a garbage collection vehicle, and displays, for example, characters such as kanji, hiragana, katakana, Roman characters, and numbers on the display.

Furthermore, the garbage collection vehicle includes a garbage storage box 1 with a push plate 5.
A pressure detector 4 detects the maximum load acting on the swing cylinder 7 that operates the pushing plate 5 when pushing garbage into the
0 is set.

The maximum pressure value P detected by the pressure detector 40 is input to the loading/discharging control device 10, and the loading/discharging control device 10 determines the loading ratio of garbage to the garbage storage box 1 based on this maximum pressure value P. Calculate.

This calculation in the loading/discharging control device 10 is performed based on a curve representing the relationship between the maximum pressure value P and the loading ratio A as shown in FIG. Note that this curve was created based on experience, and there are several different curves depending on the type of garbage loaded onto the garbage truck. Then, this calculation starts from the time when the maximum pressure value P at the time of pushing exceeds Pl, and when the maximum pressure value P is P1≦P<P2 (region I in Figure 3), the loading amount A is , ■When the maximum pressure value P is P2≦p<P3 (region ■ in Figure 3), the loading capacity A is: ■When the maximum pressure value P is P3≦P<P4 (region ■ in Figure 3) The loading capacity A when the maximum pressure value P is P4≦P<P5 (region marked ■ in Figure 3) is Ps-Pa ■The loading capacity A when the maximum pressure value P is P2:P5 is: It will be 100% full.

Note that the above A+ = As and P I''Ps are constants obtained through experiment.

The loading ratio A calculated by the loading/discharging control device 10 in this manner is output to the display device 30, and is displayed in a graph as a percentage as shown in FIG. 4 by the display device 30.

This loading/discharging control device 10 roughly estimates the loaded weight from the loading ratio A calculated as described above.

This is done by setting the specific gravity of the garbage according to the type of garbage packed into the garbage storage box, and storing a data table of these specific gravity in the ROM memory of the loading/discharging control device 10.

Then, by integrating the specific gravity according to the type of garbage to the loading ratio A, the loaded weight can be calculated.

FIG. 5 shows a compression plate type loading device.

The same members as those in the embodiment described above are given the same reference numerals and their explanations will be omitted. This loading device 50 includes a slide plate 51 that can freely slide along a guide (not shown) from the upper front part to the rear lower part of the garbage disposal box 2. and a compression plate 52 rotatably pivoted at the lower end of the slide plate 51. The slide plate 51 is configured to slide up and down by a slide cylinder 53, and the compression plate 52 is configured to rotate by a rotation cylinder 55. Due to the expansion and contraction of these slide cylinders 53 and rotation cylinder 55, the slide plate 51 Then, the compression plate 52 is driven, and the garbage is packed into the garbage storage box 1 through the steps of reversing, crushing, compressing, and stuffing.

A pressure detector 60 is provided on the rotary cylinder 55, and the pressure detector 60 detects the load acting on the rotary cylinder 55 when the compression plate 52 is filled with garbage.

The processing in the loading and discharging control device 10 based on the detected value from the pressure detector 60 is the same as that described above, and a description thereof will be omitted.

Furthermore, a discharge plate 70 is arranged inside the garbage storage box 1.

The discharge plate 70 is configured to be able to reciprocate back and forth in the front and back direction by the telescopic operation of a telescopic cylinder 71 provided between the discharge plate 70 and the front part of the garbage storage box 1. As the garbage storage box 1 is filled with garbage by the loading device 50 (or the loading device 3), the garbage in the garbage storage box 1 is gradually moved forward, and when discharging, the garbage in the garbage storage box 1 is moved from the front to the rear. Discharge outside.

This garbage storage box 1 is provided with a position detector (not shown) that detects the position of the discharge plate 70, and in the loading and discharge control device 10, the pressure detector 40 or the pressure detector 60 is
In addition to calculating the loading ratio of garbage to the garbage storage box 1 based on the detected value, the loading ratio of garbage is calculated based on the detection signal from the position detector. By calculating the loading ratio from each piece of data in this way, a more accurate loading ratio can be obtained.

In this example, the loading and discharging control device is used to control the loading and discharging of garbage from a garbage collection vehicle, but as shown in FIG. It's okay.

In FIG. 6, 80 is a conventionally known sequence circuit equipped with various glue mint switches and relays in order to control the operation of the loading device 3°500 described above and load and discharge garbage. The operating status of the loading device 3.50 obtained from a beam mint switch or the like is input to the control unit 90 as a tamping signal. The control unit 90 is built into the display device 95. Detection signals from the pressure detector 4o or pressure detector 6° and the position detector described above are input to the control unit 90, and the control unit 90 determines the loading ratio of garbage and the loading based on these detected values in the same manner as described above. Calculate weight. In addition, the display device 95
The calculation results calculated with 0 and the work status are displayed in the same manner as the display device 30 described above.

(Effects of the Invention) As described above, according to the present invention, the loading ratio and loading weight of the garbage packed into the garbage storage box are calculated, and the data is displayed on the display device, so that the operator can It is possible to accurately grasp the loading ratio and loading weight, accurately judge whether the load is full, and prevent overpacking of garbage.
Overweight can be prevented and the loading amount can be kept constant.

In addition to calculating the loading ratio of garbage to the garbage storage box based on the detected value by the pressure detector as described in claim 4, the loading ratio of garbage is calculated based on the detection signal from the position detector. By calculating, a more accurate loading ratio can be obtained.

[Brief explanation of drawings]

Figure 1 is a side view showing the general configuration of the garbage collection vehicle, Figure 2 is a block diagram showing the control system of the garbage collection vehicle, and Figure 3 is the relationship between the maximum pressure value P acting on the swing cylinder and the loading amount A. Figure 4 is a front view showing the display device graphed as a percentage, Figure 5 is a diagram showing the relationship, and Figure 5 is a front view showing a display device graphed in percentages. FIG. 6 is a side view showing the garbage collection vehicle, and FIG. 6 is a block diagram showing another control system. ... Garbage storage box ... Garbage input box ... Loading device ... Pushing plate ... Rotating plate ... Swinging cylinder ... Loading and discharging control device ... Display device ... Pressure detector...Loading device...Slide plate...Compression plate...Rotating cylinder...Pressure detector...Discharge plate...Control unit (control unit) 95...Display Device

Claims (1)

[Scope of Claims] 1) In a garbage collection vehicle in which a garbage input box is connected to the rear of a garbage storage box, and a loading device is provided in the garbage input box, the garbage is transferred by the loading device to the garbage storage box. a pressure detector that detects the load acting on the loading device when stuffing into the container; and a pressure detector that calculates the loading ratio of garbage to the garbage storage box based on the detected value by the pressure detector, and also determines the type of garbage in advance from this loading ratio. A loaded weight calculation device for a garbage collection vehicle, comprising: a control unit that calculates a loaded weight based on various set specific gravity in accordance with the above; and a display device that displays the loading ratio and the loaded weight. 2) The loading device includes a swingable push plate and a rotatable rotary plate disposed below the push plate, and the pressure detector is a swing cylinder that swings the push plate. The loaded weight calculation device for a garbage collection vehicle according to claim 1, which detects a load acting on the garbage collection vehicle. 3) The loading device consists of a slide plate that can freely slide downward on the road, and a compression plate rotatably supported at the lower end of the slide plate, and the pressure detector is configured to detect the amount of garbage collected by the compression plate. 2. The loaded weight calculating device for a garbage collection vehicle according to claim 1, which detects a load acting on a rotating cylinder that rotates the compression plate during packing. 4) The garbage storage box is provided with a discharge plate that is slidable in the front and back direction and discharges the garbage stored in the garbage storage box, and is also provided with a position detector that detects the position of the discharge plate, The garbage collection vehicle according to claim 1, wherein the part calculates the loading ratio of garbage to the garbage storage box based on the detected value by the pressure detector, and also calculates the loading ratio of garbage based on the detection signal from the position detector. Loaded weight calculation device.