CN203008019U

CN203008019U - Throttle motor self-learning control device of excavating machine

Info

Publication number: CN203008019U
Application number: CN2012206356711U
Authority: CN
Inventors: 郑磊; 孟凡建; 杨裕丰; 葛瑞彩; 李亚东; 刘凯; 郑杨
Original assignee: Xuzhou XCMG Excavator Machinery Co Ltd
Current assignee: Xuzhou XCMG Excavator Machinery Co Ltd
Priority date: 2012-11-27
Filing date: 2012-11-27
Publication date: 2013-06-19
Anticipated expiration: 2022-11-27

Abstract

The utility model discloses a throttle motor self-learning control device of an excavating machine, which comprises a master controller, a monitoring instrument, a throttle knob, a throttle motor, an engine, a revolution speed transducer, a GPS (Global Positioning System) vehicle-mounted terminal and a monitoring center; the monitoring instrument and the GPS vehicle-mounted terminal are in electrical connection connected with the master controller respectively; the throttle knob is in electrical connection with the master controller; the throttle motor is in electrical connection with the master controller; a flexible shaft stay wire of the throttle motor is in mechanical linkage with a throttle pull rod of the engine; the revolution speed transducer is in electrical connection with the master controller; the GPS vehicle-mounted terminal communications with the monitoring center through a GPRS (General Packet Radio Service) wireless network; and the master controller detects the actual rotational speed of the engine in real time and compares the actual rotational speed of the engine to the target rotational speed stored in the master controller, and when the value difference between the actual rotational speed and the target rotational speed is greater than a set value, the master controller reminds a user to perform throttle motor self learning again. The throttle motor self-learning control device has the beneficial effect that the situation that the engine power decreases and the fuel economy worsens due to the reduction of the rotational speed is avoided, so that the economic loss of the user is reduced.

Description

Excavator throttle motor Self-learning control device

Technical field

The utility model relates to a kind of excavator throttle motor Self-learning control device, belongs to excavator control technology field.

Background technology

Engineering machinery is the basic equipment that national basis is built, and hydraulic crawler excavator is that function is the most typical, structure is the most complicated, purposes one of engineering machinery the most widely.Along with the high speed development of national economic development, excavator is used in exploitation of mineral resources, road construction, waterpower construction widely.Excavator work under bad environment, work are slightly large, often cause the phenomenon of throttle motor sideslip, and the user can not note these variations sometimes, can not in time demarcate throttle, cause rotating speed to descend, power reduces, the fuel economy variation causes certain economic loss.

Summary of the invention

Problem for above-mentioned prior art existence, the utility model provides a kind of excavator throttle motor Self-learning control device, use by this device, the difference of actual speed and rotating speed of target detected when master controller over after certain numerical value, can automatically whether carry out the throttle self study by the monitoring device reminding user, as long as the user selects self study, master controller will be completed the whole process of study automatically, can also select the rotating speed under some gears is carried out self study.

to achieve these goals, the technical solution adopted in the utility model is: a kind of excavator throttle motor Self-learning control device, comprise master controller, monitoring device, grip, throttle motor, motor, speed probe, the GPS car-mounted terminal, Surveillance center, monitoring device and GPS car-mounted terminal are electrically connected with master controller respectively, grip and master controller are electrically connected, throttle motor and master controller are electrically connected, the flexible axle bracing wire of throttle motor and the accelerator rod of motor carry out mechanical connection, speed probe and master controller are electrically connected, the GPS car-mounted terminal communicates by GPRS wireless network and Surveillance center.Monitoring device and GPS car-mounted terminal are electrically connected by CAN bus and master controller respectively.

Master controller gathers the actual speed of motor, compare with the rotating speed of target that is stored in master controller the inside, when the difference between two values greater than when setting value, master controller can send information to monitoring device automatically, reminding user carries out the throttle self study, the user can select to carry out the throttle self study, realizes throttle motor is demarcated.

The beneficial effects of the utility model are: master controller can detect in real time motor actual speed and with the comparing of the rotating speed of target that is stored in master controller the inside, duty that like this can the real-time tracking throttle motor, when difference during greater than certain value, master controller automatically sends the information reminding user to monitoring device and re-starts the throttle motor self study, has avoided rotating speed to descend and has caused the situation of engine power decline and fuel economy variation; Thereby reduce user's economic loss.

Description of drawings

Fig. 1 is theory diagram of the present utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with embodiment.

As shown in Figure 1: the utility model comprises monitoring device, master controller, grip, throttle motor, motor, speed probe, GPS car-mounted terminal and Surveillance center, monitoring device, GPS car-mounted terminal, grip, throttle motor, speed probe are electrically connected with master controller respectively, the flexible axle bracing wire of throttle motor and the accelerator rod mechanical connection of motor, the GPS car-mounted terminal communicates by GPRS wireless network and Surveillance center; Monitoring device and GPS car-mounted terminal are electrically connected by CAN bus and master controller respectively.

Described master controller be used for detecting in real time motor actual speed and with the comparing of the rotating speed of target that is stored in the master controller the inside, greater than when setting value, master controller sends information and re-starts the throttle motor self study to the timely reminding user of monitoring device when difference.

Throttle motor Self-learning control process is as follows:

First step form with array in master controller is stored the voltage of each gear of grip and stores rotating speed of target corresponding to each gear;

Second step sends the self study instruction by monitoring device to master controller, and master controller can select the grip initial value to control throttle motor, pulls the accelerator rod of motor by the bracing wire of throttle motor, adjusts the accelerator open degree of motor;

The 3rd step master controller detects the actual speed of motor by speed probe, the rotating speed of target corresponding with the grip initial value of storing in master controller compares, until actual speed is within the scope that rotating speed of target is being stipulated;

The 4th step master controller detects the feedback voltage of throttle motor, and stores this numerical value in array;

The 5th step master controller can carry out the study of each gear successively, stores the feedback voltage of the corresponding throttle motor of each gear;

The 6th step checked that the rotating speed of each gear was within the limits prescribed, if within the limits prescribed, throttle motor self study process finishes, if not within the limits prescribed, corresponding gear is being learnt by oneself, can selected corresponding gear on monitoring device;

Excavator is after work a period of time, and due to the impact of each side factor, the phenomenon of sideslip can appear in throttle motor.Master controller can detect the actual speed of motor in real time, compare with the rotating speed of target that is stored in master controller, when difference during greater than certain value, master controller can send information to monitoring device, whether reminding user carries out throttle is demarcated, if demarcate this moment, excavator enters throttle motor self study process, if do not demarcate this moment, can select to withdraw from.Information also sends to Surveillance center by the GPS car-mounted terminal by wireless network, after the attendant sees the information of throttle motor sideslip, also can notify the usage mining machine to need throttle to demarcate.So just realized the working state real-time monitoring to throttle motor, in time found deviation phenomenon, automatically notified the user, the very first time carries out throttle and demarcates.

Preferably, in the first step, grip is selected 11 grades of knobs.

Preferably, the actual speed set of the 3rd step and rotating speed of target only poor scope be to the maximum ± 20rpm.

Preferably, the scope minimum of the difference of the actual speed of the 7th step setting and rotating speed of target is ± 150rpm.

Claims

1. excavator throttle motor Self-learning control device, it is characterized in that, comprise monitoring device, master controller, grip, throttle motor, motor, speed probe, GPS car-mounted terminal and Surveillance center, monitoring device, GPS car-mounted terminal, grip, throttle motor, speed probe are electrically connected with master controller respectively, the flexible axle bracing wire of throttle motor and the accelerator rod mechanical connection of motor, the GPS car-mounted terminal communicates by GPRS wireless network and Surveillance center;

2. a kind of excavator throttle motor Self-learning control device according to claim 1, is characterized in that, monitoring device and GPS car-mounted terminal are electrically connected by CAN bus and master controller respectively.