TRD

Rotating, pitch Angle And Run Ning Position Are Main Testing Contents For Realizing Automation Of Stacker- Reclaimer.

It Is Proved TRD-K Series Absolute Coder Can Satisfied Requirements O F Production.

Key Words:sTacker-reclaimer, the Coder1 foreword development as modern industry, the automation level demand that waits for pair of caboodle reclaimer in mine, dock, power plant is higher and higher. Arrive from 60 time at the beginning of 80 time, homebred caboodle reclaimer is relay completely the hand uses control, it is very difficult to change technology, strength of jockey person labor is great, manufacturing efficiency is low. 80 time end, homebred caboodle reclaimer begins to be controlled with PLC, created a condition to pile reclaimer to implement automation. The implementation of automation needs 3 element: ① detecting element; ② controls element; ③ carries out component. The overall performance of this 3 parts is only reliable, ability assures the implementation that automation produces. To caboodle reclaimer, the function that controls contactor of component PLC, executive component and electric machinery is basic and reliable. Only the function of detecting element is fluky, this is the main factor that restricts automation development. The 80 time of development process 　 that 2 positions detecting element uses before end, use from full role chance to detect angle of circumgyrate, a simple move or action. Output is imitate quantity signal, can show only commonly, do not share control. And mechanical error is bigger, launched end to already rotated sometimes 2 ° or 3 ° , sink (work station indicator) still do not have a movement. The positional converter that develops later, it is to use change coming back to press implement, the change of the voltage of metabolic translate into of angle, date of telecommunication of blame n translate into, flow chart is shown 1 times like the graph. Graph 1 　 because this product zero is difficult, when debugging although can satisfy a requirement, but after moving period of time, shake as a result of operating mode big, often appear breakdown. The caboodle reclaimer that designs now, used TRD-K series absolute value coder, detect circumgyrate, pitch angle reachs a place. This coder needs to offer 10.

8 ～ 26.

4V dc flows, according to photoelectricity principle, output the Grey of absolutely position to pile up. Its resolution has 360, 512, 720 or 1024, rotate namely circuit has 360, 512, 720 or 1024 output. This coder installation is simple, origin attune face-lifting is easy, signal is stable. The application of coder of 2 　 TRD-K1024-YC2 on caboodle reclaimer 2.

The characteristic that 1 coder output piles up and output of systematic configuration coder are Grey to pile up, its rotate the BCD code value of correspondence of a week place is 0 ～ 1023. What 511 case thunder piles up 0 ～ is the most exalted be " 0 " , 512 ～ of 1023 the most exalted be " 1 " . Every change to pile up a value to only one produces change, did not weigh a code. If the graph is shown 2 times,the change of the code and system are configured. Graph 22.

2 how to turn case thunder code into BCD code with SU-6B PLC exemple, the general program that turns case thunder code into BCD code is as follows: 2.

3 coder pursue in the application on orgnaization of circumgyrate, a simple move or action the Grey that 3 　 can pass PLC to input coder piles up change into BCD, turn into angle value again, send work station to show. The BCD code that also can use correspondence of place of a certain angle shares control directly. When automatic caboodle expects (pile stuff kind) to some, it is certain that craft asks to receive circumgyrate of a certain signal angle hind stops automatically; Orgnaization of a simple move or action is received makings after proper point of view is being admired on signal stop automatically. The program of both is same, its flow sees a picture 3. Take automatically when makings, craft is 72 ° of 12 ° ～ commonly to revolving requirement (because of makings field calm) . Its flow is shown 4 times like the graph. Graph 42.

4 coder are walking along a position to detect the application that go up this coder allows top rotate speed to be 5000r/min, go when rate is not high row, can make the mechanical drive that 1m/ encircles. If speed is higher, can increase gear speed ratio () of circle of the 4m/ that be like a graph, 10m/ circle, make coder unapt rotate speed is too high, those who affect a code is correct deferent. In fact, to piling reclaimer such large facility, if use the rate that 1m/ encircles, lose 3 ～ 5 codes do not cause influence overall situation. Because of coder from 0 arrive of 511 the most exalted be " 0 " , from 512 arrive of 1023 the most exalted be " 1 " , reason can encircle number according to the most exalted metabolic frequency computation. Press fine code convert next, add up serve as a distance. Below, with plant of Pakistan ESSA cement mix even those who pile reclaimer to take a part to detect control is exemple, the application to coder at in order to explain. Graph 5 　 craft asks (it is with some layer only exemple) see a picture 5. Automatic at the beginning to 90.

5m direction goes, go to 90.

8s jockeys when 5m. Go to opposite way next, go to 5.

8s jockeys to be returned again when 5m. This one caboodle is good (have expect a signal) hind carry arm, change start, terminal position piles again. Mechanical drive is 1m/ circle. Pen number uses deposit of data register D750, yardage uses DT51 deposit. Roll the cable, movement that put cable should act to start 2s ahead of schedule than going, stop the 4s after time lag. Its flow sees a picture 6. Graph 63 last words pass what wait for domestic and international spot in Lian Yun harbor to use, think function of coder of this kind of absolute value is stable, reliable, adjust convenient, do not need to maintain; Functional price is lower than also comparing the angle position converter that is the same as a function much; Do not need to groom technically, see a manual can be used. For this, it will receive wide application on equipment of tool of large scale computer. The place that is not worth exclusively is, the  of dimension of starting a hole of shaft coupling of product of coder form a complete set 8 with  of dimension giving an axis 10 do not deserve to go up, want the site new reaming. Do not take care to be able to damage shaft coupling, and on the market buy the shaft coupling that can replace very hard, manufacturer of reason proposal production can change the starting a hole of shaft coupling into  10.

5. CNC Milling