SU1619059A1 - Device for checking tip-lorry loading - Google Patents

Abstract

This invention relates to a weight measuring technique. The purpose of the invention is to improve the accuracy of monitoring the loading of the dump truck. When loading a dump truck, its frame moves relative to the rear axle. This movement is measured by sensor 1, the information from which through the encoder 2 and registers 7, 10 enters adder 8, where the information of the register 7 subtracts the information of the empty weight of the dump truck of register 10. During movement, switch 6 locks the contents of register 7. When unloaded, the sensor responds 4 body positions, removing the lock from the register 10. This takes into account the sticking factor on the body. 1 il.

Description

se co

The invention relates to devices for determining the degree of loading of heavy-duty dump trucks and can be used in the mining, construction and other industries of the national household.

The purpose of the invention is to improve the accuracy of monitoring the loading of the dump truck.

The drawing shows a block diagram of the device.

The device contains a displacement sensor 1 located between the frame and the rear axle of the dump truck and encoder 2 mounted on the crossbar of the frame, encoder 2, threshold unit 3, body position sensor 4 mounted on the dump truck frame under the body of the start motion sensor 5 mounted on the toggle switch speeds, switch 6, the actual load register 7, the adder 8, the output unit 9, the initial load register 10 the display unit 11.

The device works as follows.

When the auto dump truck is powered on, the supply voltage goes to the electronic circuitry of the device.

In the initial 10 and actual 7 load registers, the initial code from the displacement sensor 1 through the encoder 2 is entered. The initial code from the actual 7 registers and the initial 10 load is fed to the accumulator 8 and the result is displayed on the display unit 11, which is installed in the driver's cabin (zero loading).

The threshold unit 3 is designed to determine the minimum load and controls the operation of the switch 6. If the dump truck load is less than the minimum, the threshold unit 3 prohibits the operation of the switch 6. The start sensor 5 in this case does not affect the switch bits the initial 10 and actual 7 registers. The download of the previously recorded code remains unchanged.

When the dump truck is loaded, upon reaching the minimum load degree, the threshold unit 3 generates a switch enable signal for the switch 6. The code from the encoder 1, 2 enters the actual load register 7. After loading the dump truck, the driver turns on the speed switch

j Q 5

-.

five

0

five

0

to the forward position, which triggers the start of the motion sensor 5. As a result, the switch 6 generates a signal that blocks the contents of the actual load register 7, so that the contents of this register do not change during movement to the unloading point. At the same time, dynamic factors do not affect the readings of the device while the dump truck is moving. At the unloading point, when the body is raised, the body position sensor 4 is triggered and the switch 6 removes the lock from the initial load register, and the information from the displacement sensor 1 through the encoder 2 from its second output goes to the information input of the register 10. The sticking factor on the body is taken into account. When the body is lowered, the body position sensor 4 and the switch 6 return to the initial state and block the contents of the register 10. The driver again switches on the speed and the contents of the register 7 are again locked for the period of the vehicle moving towards the new loading point.

Claims (1)

Invention Formula A device for controlling the loading of a dump truck, containing a weight-receiving node and an adder, the output of which is connected to the input of the display unit, characterized in that in order to improve accuracy, a body position sensor, a motion start sensor, an encoder, a threshold unit, a register and the actual load, the switch, the weight-receiving unit is made in the form of a displacement sensor, which is located between the frame and the rear axle of the dump truck, with the output of the displacement sensor connected to the input of the encoder, the first output The first and second outputs of the switch are connected respectively to the first inputs of the actual and initial load registers, the second inputs of which are connected to the second output of the encoder, and 516190596 the outputs of the registers of the Actual and of the first and the second input of the total load are connected to the corresponding one.