CN205856982U - Intelligent control system for paving machine - Google Patents

Abstract

The utility model discloses an intelligent control system for a paver, which relates to the technical field of paver control. The utility model has a controller, a speed potentiometer connected with the controller, an electronic compass connected with the controller, a direction setting button connected with the controller, a left speed sensor connected with the controller, and an electronic compass connected with the controller. Right speed sensor, water temperature sensor connected with controller, oil temperature sensor connected with controller, material level sensor connected with controller, display connected with controller, voice prompt device connected with controller; controller output control Left forward/reverse proportional solenoid valve, right forward/reverse proportional solenoid valve for left and right driving pump flow of paver. Advantages: When the paver is running in a straight line, it can overcome the influence of factors such as road slippage, uneven road surface, hydraulic system leakage, etc., and effectively control the deviation of the paver, thereby improving the paving quality of the road surface.

Description

Paver intelligent control system

technical field

The utility model relates to the technical field of paver control, in particular to an intelligent control system for a paver.

Background technique

Paver is a special machine used to pave asphalt mixture, base stabilization material, roller compacted concrete (RCC) and graded gravel and other road construction materials. It is one of the key equipment for the base and surface layers of parking lots, embankments and ditches, and its driving performance directly affects the smoothness, initial compactness and segregation degree of the paved road. The national standard GB/T 16277-2008 "Asphalt Concrete Paver" stipulates the straight-line running performance of the crawler-type paver: the deviation of the straight-line running of the crawler-type paver should not be greater than 1 of the straight-line measurement distance %.

The traveling system of the paver mostly adopts the walking system driven by double pumps and double motors. The control system includes: a controller, a speed sensor installed on the motor, and an electromagnetic proportional valve to control the flow of the pump. The control scheme mostly adopts the intelligent PID control method. By comparing the difference between the speed of the left and right motors and the set value of the speed potentiometer, the speed of the motors on both sides is controlled to be consistent. The number of turns of the left and right motors is calculated by integrating the measured parameters of the left and right speed sensors. To judge the distance traveled by the left and right crawlers, the two aspects of data are combined to control the electromagnetic proportional valve that controls the flow of the pump to achieve the purpose of driving in a straight line and constant speed. However, factors such as slippery road surface, uneven driving surface, and hydraulic system leakage make the left and right motors The number of turns cannot effectively reflect the distance traveled by the left and right crawler belts, resulting in a limited effect of this method on the control of the straight-line deviation of the paver. At the same time, the paver does not have oil temperature, water temperature, material level display and reminder functions.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides an intelligent control system for paver, so that when the paver is running in a straight line, it can overcome the influence of factors such as slippery road surface, uneven road surface, hydraulic system leakage, etc., and effectively control the paver. The running deviation of the paving machine can greatly improve the performance parameters such as the smoothness, initial compactness and segregation degree of the paving surface; at the same time, it can realize the display and reminder of oil temperature, water temperature and material level.

The utility model is realized by the following technical scheme: an intelligent control system for paver, including a controller, a speed potentiometer connected with the controller for realizing stepless speed regulation, and connected with the controller for real-time monitoring of paving The electronic compass of the driving direction of the paver, the direction setting button connected with the controller, the left speed sensor connected with the controller to collect the driving speed of the left crawler of the paver, and the left speed sensor connected with the controller to collect the running speed of the right crawler of the paver The right speed sensor of speed, the water temperature sensor connected with the controller to detect the temperature of the water tank, the oil temperature sensor connected with the controller to detect the temperature of the fuel tank, the material level sensor connected with the controller to detect the material level information, and the control The controller is connected to a display for displaying water temperature, oil temperature and material level information, and is connected to a controller for a voice prompt device; the controller outputs a left forward proportional solenoid for controlling the flow rate of the paver left and right travel pumps Valve, right forward proportional solenoid valve, left forward proportional solenoid valve, right forward proportional solenoid valve.

Preferably, the controller adopts PLC.

Preferably, both the left speed sensor and the right speed sensor are Hall-type rotational speed sensors, which are correspondingly installed inside the left and right travel motors of the paver.

Preferably, the speed potentiometer and electronic compass are installed on the operating console of the cab of the paver.

The beneficial effects of the utility model are: when the paver is running in a straight line, it can overcome the influence of factors such as slippery road surface, uneven road surface, hydraulic system leakage, etc. The performance parameters such as flatness, initial compactness and segregation degree have been greatly improved; the structure is simple, safe and reliable, and the detection effect is good; the oil temperature, water temperature, and material level display and reminder are realized.

Description of drawings

Fig. 1 is a block diagram of the utility model;

detailed description

As shown in Figure 1, a paver intelligent control system has a controller; the controller is connected to a speed potentiometer for stepless speed regulation, and the controller is connected to an electronic device for real-time monitoring of the direction of the paver. Compass, the controller is connected to a direction setting button, the controller is connected to a left speed sensor for collecting the speed of the left crawler of the paver, the controller is connected to a right speed sensor for collecting the speed of the right crawler of the paver, and the control The controller is connected to a water temperature sensor for detecting the temperature of the water tank, the controller is connected to an oil temperature sensor for detecting the temperature of the fuel tank, the controller is connected to a material level sensor for detecting material level information, and the controller is connected to a sensor for displaying water temperature, The display of oil temperature and material level information, the controller is connected with a voice prompt device for voice prompt. The controller outputs the left-forward proportional solenoid valve, the right-forward proportional solenoid valve, the left-forward proportional solenoid valve, and the right-forward proportional solenoid valve for controlling the flow of the left and right driving pumps of the paver.

In this embodiment, the controller adopts PLC. Both the left speed sensor and the right speed sensor adopt Hall-type rotational speed sensors, which are correspondingly installed inside the left and right travel motors of the paver. The speed potentiometer and electronic compass are installed on the operation console of the cab of the paver, which is convenient for the staff to operate.

Take the paver as an example to introduce its working process in detail:

The left travel speed sensor monitors the travel speed v1 of the left crawler of the paver in real time, the right travel speed sensor monitors the travel speed v2 of the right crawler of the paver in real time, and the electronic compass monitors the travel direction of the paver in real time. According to the deviation e1 between the set value v given by the speed potentiometer and the left crawler speed v1, the controller outputs a certain current to control the left forward proportional solenoid valve to realize the closed-loop control of the left crawler speed. The control algorithm adopts PID control.

Before the paver works, first adjust the direction of the paver. When the input port of the controller collects the momentary signal when the direction setting switch is pressed, the electronic compass collects the direction of the paver at this time as the paving direction. The setting value of the driving direction of the paver; when the paver is working, the correction value q of the driving direction of the paver is obtained by subtracting the setting value of the driving direction of the paver from the data d1 of the real-time collected paver driving direction, and the speed The setting value v given by the potentiometer and the correction value q of the paver’s driving direction are obtained through fuzzy calculations to obtain the setting value r of the right crawler belt speed. The deviation e2 outputs a certain current to control the right forward proportional solenoid valve to realize the closed-loop control of the speed of the right crawler, and its control algorithm also adopts PID control.

When the correction value q of the driving direction of the paver is 0, the setting value r of the right crawler speed is equal to the setting value v given by the speed potentiometer, and the setting values of the speed control of the two sides of the crawler belt should be consistent at this time , no deviation correction is needed, only constant speed control is required; when the correction value q of the paver’s driving direction is greater than 0, it means that the paver is moving to the right, and the set value r of the right crawler speed after fuzzy calculation should be greater than the speed The setting value v given by the potentiometer is to increase the speed of the right crawler to achieve the purpose of correcting the deviation to the left; similarly, when the correction value q of the paver driving direction is less than 0, it means that the paver is driving to the left , after the fuzzy calculation, the set value r of the right crawler speed should be smaller than the set value v given by the speed potentiometer, so as to reduce the speed of the right crawler and achieve the purpose of correcting the deviation to the right.

The back process control of the paver is similar to the above working process.

The monitor displays the water tank temperature, fuel tank temperature and material level information in real time. When the water tank temperature, fuel tank temperature and material level information reach the set value, it will be reminded by the voice pick-up device.

The use of this system can better overcome the influence of factors such as road slippage, uneven road surface, hydraulic system leakage and other factors on the constant speed and straight line driving of the paver, and greatly improve the paving quality of the road surface.

Claims (4)

1. an intelligent control system for paving machine, including controller, it is characterised in that；Also include being connected to realize with controller The speed potentiometer of stepless speed regulation, is connected to monitor in real time the electronic compass in the direction that paver travels with controller, with control The direction setting button that device processed connects, is connected to gather the left velocity pick-up of paver left crawler belt travel speed with controller Device, is connected to gather the right velocity sensor of paver right-hand track chiain travel speed with controller, is connected to inspection with controller Survey the cooling-water temperature sensor of water tank temperature, be connected to detect the oil temperature sensor of tank temperature with controller, be connected with controller For detecting the level sensor of material position information, it is connected to show water temperature, oil temperature and the display of material position information with controller Device, with the sound prompt device that controller is connected to voice message；Described controller output control is used for controlling paver Left and right driving pump flow left front enter proportional solenoid, right advance proportional solenoid, left front enter proportional solenoid, right advance ratio Example electromagnetic valve.

Intelligent control system for paving machine the most according to claim 1, it is characterised in that: described controller uses PLC.

Intelligent control system for paving machine the most according to claim 1, it is characterised in that: described left velocity sensor and the right side Velocity sensor all uses hall-effect speed sensor, the corresponding inside being arranged on the left and right driving motors of paver.

4. according to the intelligent control system for paving machine described in any one of claim 1-3, it is characterised in that: described speed current potential Device and electronic compass are arranged on the operating board of paver driver's cabin.