JPS58162816A - Monitor device for dead-weight load - Google Patents

Abstract

PURPOSE:To prevent overloading on a materials handling machine by detecting the cargo handling loadage on said machine by a loader exactly at proper times by means of a microcomputer system in the stage of loading. CONSTITUTION:A position sensor 5 consisting of limit switches, etc. for the purpose of detecting the height position of a bucket 3 and a pressure sensor 6, which is a strain gage or the like, for the purpose of detecting the oil pressure of a lift cylinder 4, are provided to hydraulic systems. The values detected with the respective sensors are converted to electric signals which are outputted to a microcomputer 7. The electric signal inputted through an input mechanism 8 to a microprocessor 9 is converted to load and the actual cargo handling weight in the bucket 3 is read and calculated. At the same time, the read weight and the preset max. loadage of the materials handling machine are compared and calculated. A driving mechanism 11 for output apparatus is operated by the electric signal which is the result of said calculation. The weight value which is the result of the calculation is then displayed with an output apparatus 13.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention provides a method for loading earth and sand, iron ore, pulp chips, etc. onto a transporter such as a dump truck using a loading machine such as a packet loader. This invention relates to a monitoring device for cargo handling horizontally loaded heavy crates that enables accurate automatic measurement.

Accurately grasping the total injection weight during cargo handling and loading work is not only important in terms of maintaining, managing, and safety the proper operation of vehicles such as duvet trucks, but also in terms of actual construction work. Since the transportation and processing weights, etc., can be objectiveized, it is extremely effective in terms of construction management, and is beneficial to all parties involved.

However, conventionally, when measuring the actual loading capacity of a dump truck, for example, the loading of each truck was measured using a fixed or portable loading needle, and the weight of the truck was subtracted from the measured value to determine the actual loading capacity of a dump truck. It is being calculated.

With such measuring means, it takes a considerable amount of time and effort to accurately determine whether or not the actual loading is overloaded, resulting in a lot of time loss and a considerable economic burden.

In particular, in the case of measurements using installed lid load needles, it is necessary to move the truck to a specific weighing site.

In addition, the load needles are quite expensive and the number of installations is limited, so in addition to the time loss when measuring the load as mentioned above, there is also a lot of time loss due to waiting time due to truck queues, and the load caused by this This increases the economic burden required to change or increase the needle installation location, and it is necessary to change the construction order.

On the other hand, in the case of town-transportable load needles, the operator must bring the machine to the site at any time, measure *m for each truck, and then subtract the truck weight tt from that value, which is very inefficient in measurement and in terms of management. However, due to problems, it is not actually used.

Even if a load needle of 1* and 9 is used, the calculated t
- There is also a lack of reliability when measuring the load, as there is a risk of making mistakes.

Moreover, the above measurements are usually carried out after the cargo has been loaded onto the truck, so if overloading is found after the measurement, each time the measurement is carried out, it is necessary to return to the site and remove the overload and try again. There is a major inconvenience in terms of work efficiency, as the loading* must be measured.

In view of the above, it is difficult to accurately determine the actual loading capacity of a dump truck or the like using conventional measuring means.

For this reason, maintaining proper operation of transport equipment such as dump trucks,
Not only does this pose a major problem in terms of management and safety, but also, as mentioned above, due to the inability to accurately grasp the actual cargo handling and loading, for example, setting the specific gravity of the mixture based on the loading amount and In factories where accurate changes in ratios are required, production defects and construction defects are commonplace.

This invention was newly developed as a result of intensive research in view of the above circumstances.

A main object of the present invention is to provide a cargo handling/loading weight monitoring device that allows a microcomputer system to accurately grasp the amount of cargo handled and loaded onto a transporter by a loading machine at any time during the loading process.

A further object of the present invention is to provide a cargo handling and loading weight monitoring device that is extremely effective in preventing overloading of a transporter.

In other words, the present invention allows the operator of the loading machine to correctly check the weight efK loaded onto the transporter, and also prevents the loader from loading the transporter's bucket/lot. If it is a loading station, instruct the loading machine operator in advance to immediately stop loading and unloading onto the transporter, and at the same time eliminate overloading of the contents of the packet, and then
The present invention is characterized in that it is possible to electrically instruct the transporter to reload only the amount of cargo that is insufficiently adequate.

Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

The packet loader 1 shown as an example of a cargo handling/loading machine in FIG. 1 has a well-known configuration including a packet 5 at the tip of a toe arm 2, and a lift cylinder 4 for driving the packet up and down.

Such a packet loader (hereinafter referred to as a loader) is equipped with the device of the present invention.

As shown in FIG. 2, this device includes a position sensor 5 consisting of a limit switch etc. for detecting the height Wtt of the packet 6, and a pressure oil system of the lift cylinder 4 for detecting the oil pressure of the cylinder. A pressure sensor 6 such as a strain gauge is provided.

These sensors 5 and 6 convert their detection values into electrical signals and output them to the microcomputer 7.

The computer 7 has a system configuration including a sensor input mechanism 8, a microprocessor (hereinafter referred to as CPU) 9, a parameter input mechanism 10, an output device drive mechanism 11, and a power supply mechanism 12.

The CPU 9 converts electrical signals inputted from each sensor 5, 6 through the input mechanism 8 of that system into a load.
Therefore, the actual cargo handling type Ii in the packet 5 is successively calculated. At the same time, 1. Compare and calculate the read weight with the large loading capacity of a preset transporter, for example, a dump truck TO eel shown in FIG. let

An output device 15 for displaying the weight value of the calculation result is linked to the mechanism 1"1.

This output device 16 includes, as shown in more detail in FIG.
, loading amount setting switch 18, tolerance range setting switch 1
9. Total loading display switch 20, function stop switch 21
, a power switch 22 , and a reset switch 25 as shown in the figure, and is installed in the driver's seat of the loader 1 or the like.

In this 8m output device 13, the lamps 15 to 17 are
A red lamp 15 as an alarm turns on or flashes when the cargo handling in the packet 5 is overloaded, a green lamp 16 turns on or flashes when the loading device is properly loaded, and a yellow lamp indicates that there is still insufficient loading. The lamps 17 are color-coded.

9. The power switch 22 in each of the switches 18 to 26 is connected to the batch IJV system of the microcomputer 7.
- electric circuit provided and other switches 18 to 21 and 2;
5 is provided in the electric circuit of the parameter input mechanism 10.

A flowchart of the system configuration as described above is shown in FIG.

In the flowchart, system startup is accomplished by turning on the power switch 22 of FIG. 8, thereby initializing the system.

The dump loading setting is done using the loading amount setting switch 18 in Figure 8.
This means setting in advance the maximum loading capacity of the dump truck T or the number of loads to be loaded within that range. In this case, the allowable range setting switch 19 sets the allowable error range of the total loading amount for the dump truck, for example, from 101t to α.
It is set in advance within the range of 9t.

With this setting, the total weight of cargo to be loaded onto the dump truck is loaded in advance by the microcomputer 7, and the loaded amount 1 is displayed on the output device 130 superposition display section 14. This is the display of the remaining loading amount at 70 yards. At this point, the loader is loaded with rice.

In this state, when the reset switch 23 is turned on to start loading the loader packet 6, the amount of charge in the packet is automatically measured.

That is, when the packet 5 loaded with cargo such as earth and sand is displaced to the height at which the cargo is loaded onto a dump truck, the height position is moved by the lift arm 2 or the like, or the lift switch or the like is moved. Position sensor 5
Detected in

At the detected height position, the pressure sensor 6 detects the oil pressure applied to the lift cylinder 4 which is supporting the amount of charge and the like in the packet 6 .

The height of the packet 3 and the oil pressure of the lift cylinder 4 have a certain correlation with the amount of load inside the packet.

By detecting the oil pressure value of the lift cylinder 4 at a specific extension point from the correlation, the actual load amount in the packet can be instantly determined from the detected value even during cargo handling work.

Based on this reason, the CP of the microcomputer 7
U9 converts the electrical signals inputted from each of the sensors 5 and 6 via the input mechanism 8 into a load.

This load becomes the measured weight of the load in the packet loaded onto the dump truck. The measured weight value is digitally displayed in radix on the weight display section 14 of the output device 15. This is the loading weight conversion heavy song display in the flowchart of FIG. 4.

In this way, when the cargo in the packet 5 is loaded onto a dump truck, the CPU 7 calculates the total loading amount in the 70-chart diagram each time the loading is repeated. The total loading value is displayed on the weight display section 14 each time.

At the same time, the CPU 7 compares and calculates the total loaded weight as a result of the calculation with the maximum loading capacity of the 9th dump truck, which is set as fth, and determines whether there is any remaining loading.

As a result, it becomes clear whether the cargo handling in the packet is overloaded or not.

That is, if the maximum loading capacity of the truck is not reached even if the loading of the packets in the middle of pickling is repeatedly carried out, the yellow lamp 1 for indicating insufficient loading on the output device 16 is activated.
7 flashes.

Therefore, when the loader operator interrupts the loading operation into the dump truck only when the yellow lamp 17 is flashing, the loader operator immediately repeats the operation smoothly and slows down the execution of the operation.

Due to the repeated lighting operation, if the cargo handling in the packets is properly stacked just before the end of loading onto the dump truck, the edge lamp 16
flashes. In this case, by loading the cargo in the packet directly onto the dump truck, the actual total loading on the truck becomes an appropriate total loading that matches the maximum loading within an allowable range. With this, the injection work is completed,
By performing the termination process at that point, the system of the present invention returns to the initial setting state again in the flowchart.

However, if it is determined that the cargo handling in the packet immediately before the end of loading is too many meters, the red lamp 15 for indicating overloading
blinks to instruct the discharge of the cargo inside the packet.

In this case, overloading of the dump truck T by the loader 1 can be prevented by the loader operator discharging the cargo in the packet according to the instructions.

At the same time, load the cargo corresponding to the unloaded cargo 1 at that time into the packet 5 again, confirm that the injection weight is appropriate by blinking the green lamp 16, and then transfer the cargo in the packet to the dump truck. By loading, the total weight injected into the truck becomes the appropriate loading amount, and the loading operation is completed.

In the above embodiment, the weight display section 14 of the output device 15
The weight value displayed may be either the remaining loading amount or the additional loading weight.

In the case of unloading, the CPU 7 displays the answer weight value obtained by subtracting the cargo handling weight in the packet from the maximum loading capacity of the dump truck, and thereafter, every time the loading light on the dump truck is repeatedly displayed. It is only necessary to display the answer ambiguity value obtained by subtracting the weight of the part in the packet from the already displayed weight value each time.

Therefore, in this case, the loader operator
Just by reading the 0 weight display value, you can instantly check the remaining loading details.

On the other hand, in the case of the lateral load W* amount, the displayed value is the addition of the cargo handling weight in the packet each time the dump truck is loaded with light. This has the advantage of being able to accurately grasp the number of loads.

Reference numeral 24 in FIG. 2 is a recording output device, such as a printer, which is installed in the microcomputer j7 separately from the display output device 15.

The output device 24 outputs information such as system setting conditions, the number of times the packet loader loads the dump truck, the number of measurements of cargo handling in the packet for each number of times, and the total amount of loading into the dump truck at the end of loading. Edit everything and record it on data paper.

Therefore, the data sheet is useful for loader operation wax management. In this case, the output device 24 is configured to store the loader's daily production aCt magnetic tape in the τQIC memory temple.
If you keep it, you can centrally manage the loader's total work for the day by bringing it back as a report.

In addition, the loader 1t is equipped with a telemeter for transmitting the output signal from the microcomputer 7, and the truck T is equipped with a telemeter for receiving the signal from the transmitting telemeter, and a telemeter for receiving the signal from the transmitting telemeter. By equipping the loader with an output device that inputs the signal and displays the total loaded position of the truck, it is possible to instruct the loader to the truck whether or not the truck is actually loaded with roundworms. be.

Note that the present invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without changing the gist.

As described above, the present invention provides the following various excellent effects.

(1) When loading and unloading the cargo into the transporter using the injection machine (the amount of heavy wax in the packet of the loading machine is automatically measured by a microcomputer system, and the total amount of wax loaded onto the transporter is calculated based on the measurement) The loaded weight or the amount of unloaded material remaining as a result of comparison calculations between the weight and the maximum loading capacity of the transporter is displayed on the output device, so that the loading machine operator can load the loaded weight onto the transporter. Accurately understand the process.

(1) In particular, if the packet handling device of the injection machine to be loaded onto the transporter is an overfiI device, the alarm will indicate this to the loading machine operator, so the loading machine will be able to handle the cargo into the transporter. After interrupting the process and eliminating overloading during cargo handling in the packet, the cargo handling power supply is automatically measured again according to the remaining loading amount and the cargo is loaded, thereby preventing overloading on the transport machine. This can be prevented in advance and reliably.

(-), Therefore, it is possible to immediately determine whether the weight loaded onto the transporter is appropriate, overloaded, or underloaded. Therefore, time loss during cargo handling and loading work is eliminated, work efficiency is greatly improved, and it is extremely advantageous economically. This is particularly effective when it is difficult to equalize the load #tL- by the driver's visual inspection, such as when the loading objects are different on a daily basis and the specific gravity varies widely depending on the water content tK, such as pulp chips. demonstrate.

[Brief explanation of the drawing]

The drawings show preferred embodiments of the invention, and include FIG.
An explanatory diagram showing the loading state of a dump truck by a vacuum loader, Fig. 2 is a block diagram of a cargo handling load tVL viewing device equipped on the loader, Fig. 8 is a front view of the output device of the same device, Fig. 4 is a flowchart diagram showing the operating procedure of the device. 1 is a loader exemplified as a loading machine, 5 is a packet, 4 is a lift cylinder, T is a dump truck exemplified as a transporter, 5 and 6 are sensors, 9#i microprocessor, 1
6 is an output device. Figure 2 23 22

Claims (4)

[Claims] (1) A device for automatically monitoring the actual loaded weight of cargo loaded onto a transporter such as a dump truck by a loader including a packet, its drive system lift cylinder, and a loader, Senna for detecting the height position of the packet when loading/unloading onto a transporter, and loading/unloading condition m
A sensor detects the hydraulic pipe of a certain lift cylinder, converts the electrical signals input from these sensors into a load, and calculates the cargo handling weight in the packet. A microprocessor that calculates the underloaded remaining amount to the total loaded weight of the transporter by comparing it with the maximum loading amount, and a digital processor that inputs the signal from the processor to calculate the underloaded remaining amount or the total loaded weight. A cargo handling/loading weight monitoring device characterized by a configuration including an output device that displays a display and activates an alarm tube at least when overloaded in each of the cases of proper loading, underloading, and overloading. (2) The output device has, in addition to an overload alarm, display means for proper loading and display means for underload. The cargo handling/loading weight monitoring device described. (3) The microprocessor edits all the system setting conditions, the number of times of loading, the ambiguity of the needle weight of cargo handling in the packet for each loading, the total loading weight at the end of loading, etc., and records them on the data paper. The cargo handling and loading weight monitoring device according to claim 1, further comprising a recording output device. (4) The loading machine is equipped with a telemeter for transmitting the output signal from the microprocessor, and the transport machine is equipped with a telemeter for receiving the signal from the telemeter, and an output device for inputting the received signal. 2. The lateral loading ambiguity monitoring device according to claim 1, wherein the actual total loaded weight of the transporter is indicated from the loader.