CN201250061Y - Hoisting height display instrument of hoisting mechanism - Google Patents
Hoisting height display instrument of hoisting mechanism Download PDFInfo
- Publication number
- CN201250061Y CN201250061Y CNU2008201509358U CN200820150935U CN201250061Y CN 201250061 Y CN201250061 Y CN 201250061Y CN U2008201509358 U CNU2008201509358 U CN U2008201509358U CN 200820150935 U CN200820150935 U CN 200820150935U CN 201250061 Y CN201250061 Y CN 201250061Y
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- absolute value
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- main control
- height
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Abstract
The utility model relates to a hoisting height display instrument of hoisting mechanism comprising a height transducer single-chip microcomputer, an absolute value encoder connected with the height transducer single-chip microcomputer, a control unit and a display unit, wherein the absolute value encoder is arranged on the output shaft of a hoisting drum of the hoisting mechanism for collecting motion signals and outputting hoisting height signals after processing, the absolute value encoder does not need memorizing and searching reference points, and does not need always counting, and the position thereof can be read at any time, thereby the anti-interference capacity is strong and the reliability is good, when the system is power-failed and is newly electrified, the display unit still can display the height value before the power-fail, and the control unit of the instrument further can alarm for failures to prompt operators to carry out measures in time.
Description
Technical field
The utility model relates to the lifting mechanism field, particularly a kind of lifting altitude display instrument of lifting mechanism.
Background technology
At present, a lot of lifting mechanisms, such as hoisting crane, metallurgical casting hoisting crane particularly, highly all overhead more than 20 meters, because wayside equipment, obstacle height is indefinite, in suspension hook hoists process, the craneman is difficult to judge its lifting altitude, more is difficult to determine accurate height value, needs lifting altitude indicating instrument or special messenger to instruct and helps the operator location, as passing through the numeric display lifting altitude, the craneman can judge the current height of suspension hook more accurately, prevents that suspension hook from colliding equipment below ladle or the hoisting crane, to avoid unnecessary accident.
General lifting altitude indicating instrument generally all is to link to each other with the rotating shaft of crane hoisting reel by photoelectric sensor or incremental encoder for crane hook lifting altitude deixis, change reel corner angular transposition into electric impulse signal, this altitude information signal is transferred to microcomputer, microcomputer draws lifting altitude through converting, and is presented at last on touch-screen or other display equipment.Because photoelectric sensor or incremental encoder; the position is to determine from the number of pulses that zero mark begins to calculate; there are the cumulative errors at zero point; disturbance rejection is relatively poor; the shutdown of the reception facilities memory of need cutting off the power supply, problems such as small change or reference bit are answered in start, can cause offset; the craneman gets the wrong sow by the ear, and causes potential safety hazard.
The utility model content
There are cumulative errors at zero point at present lifting altitude indicating instrument, defectives such as disturbance rejection is relatively poor, the utility model provides a kind of lifting altitude display instrument of lifting mechanism, and the antijamming capability of this lifting altitude display instrument is strong, good reliability, it need not memory, need not to look for R point.
For achieving the above object, the utility model provides a kind of lifting altitude display instrument of lifting mechanism, comprising:
Detecting unit comprises height transmitter micro controller system and connected absolute value encoder, and described absolute value encoder connects the output shaft of the driving device of described lifting mechanism;
Control unit is connected with the height transmitter micro controller system of described detecting unit, handles the output signal of height transmitter micro controller system;
Display unit is connected and receives the signal of its output with described control unit, and described display unit is exported the lifting altitude of described lifting mechanism.
Described lifting altitude display instrument also comprises fieldbus, and detecting unit, control unit and display unit all connect described fieldbus by isolating bus driver.
Described detecting unit also comprises conv, described height transmitter micro controller system connects described absolute value encoder by described conv, the absolute value encoder mouth connects the input end of height transmitter micro controller system, and the mouth of height transmitter micro controller system is exported the lifting altitude data-signal of described lifting mechanism to described fieldbus.
Described control unit comprises first main control processor, relay control outlet, photoelectrical coupler and first memory, described first main control processor connects the height transmitter micro controller system of described detecting unit by described fieldbus, the output pin of first main control processor connects described relay control outlet, input pin connects the mouth of described photoelectrical coupler, described first memory is connected on first main control processor, the parameter that storage is set.
Described display unit comprises second main control processor, display operation terminal and second memory, described display operation terminal comprises read-out and touch keyboard, described second main control processor connects described read-out by serial driver, and be connected with described touch keyboard, described second memory connects the pin of described second main control processor, the parameter that storage is set.
Described absolute value encoder connects the hoisting drum rotating shaft of described lifting mechanism.
Described first memory or second memory are the non-loss memory device of serial.
Adopt the lifting altitude display instrument of a kind of lifting mechanism described in the utility model, because having adopted absolute value encoder to be installed in, it gathers motor message and treated output lifting altitude signal on output shaft of hoisting drum, absolute value encoder need not memory, also need not to look for R point, and need not count always, at any time can read its position, so antijamming capability is strong, good reliability; And when system's power down and when re-powering, display unit still can show the height value before the power down, and control unit of the present utility model can also carry out fault alarm, in time makes measure to remind the operator.
Description of drawings
Fig. 1 is a structural principle scheme drawing of the present utility model;
Fig. 2 is the principle schematic of detecting unit of the present utility model;
Fig. 3 is the principle schematic of display unit of the present utility model;
Fig. 4 is the principle schematic of control unit of the present utility model;
Fig. 5 is the principle schematic of system wiring of the present utility model;
Fig. 6 is the workflow diagram of detecting unit of the present utility model;
Fig. 7 is the workflow diagram of control unit of the present utility model;
Fig. 8 is the workflow diagram of display unit of the present utility model.
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
Referring to Fig. 1 and Fig. 2, the utility model comprises detecting unit 10, control unit 20, display unit 30 and fieldbus 40, wherein detecting unit 10 comprises height transmitter micro controller system 11 and absolute value encoder 12, described height transmitter micro controller system 11 connects described absolute value encoder 12 by conv 13, described absolute value encoder 12 connects the output shaft of the driving device of described lifting mechanism, here, bonded assembly is the hoisting drum rotating shaft of described lifting mechanism, absolute value encoder 12 mouths connect the input end of height transmitter micro controller system 11, and the mouth of height transmitter micro controller system 11 is exported the lifting altitude data-signal of described lifting mechanism to described fieldbus.
Referring to Fig. 2, as an embodiment, absolute value encoder 12 adopts 25 absolute value encoders (RM6104), absolute value encoder 12 directly links to each other by plunging joint with the hoisting drum rotating shaft, height transmitter micro controller system 11 (W78E58BPI-24) drive generation RS485 synchronization pulse (65LBC184) by RS485 conv 13 and deliver in the absolute value encoder 12, absolute value encoder 12 return Gray code absolute value detection signal feed back to height transmitter micro controller system 11 (by its 8th, the 9th pin), height transmitter micro controller system 11 equivalent coefficients according to setting are converted to the actual height value with the absolute value pulse count, and this parameter is sent into fieldbus 40 (the high disturbance rejection of 4 line systems is isolated bus) by isolating bus driver (TLP521-1).
The the 8th, the 9th pin of height transmitter micro controller system 11 chips receives the incoming signal of absolute value encoder 12, and the 11st pin is bus driver output, and the 13rd pin is the bus driver input.The 15th pin is the gating signal of input and output, and the 16th pin is an incoming signal, and the 14th pin is an output signal.
Chip the 2nd pin of RS485 conv 13, the 3rd pin are the gating signals of input and output, and the 4th pin is an incoming signal, and the 1st pin is an output signal, and the 6th pin, the 7th pin send the RS485 signal.
The the 1st, the 2nd pin of absolute value encoder 12 connects data-signal, and the 3rd, the 4th pin bonded assembly is an impulse singla.
When control unit 20 energized, height transmitter micro controller system 11 simultaneously, height transmitter micro controller system 11 issues a signal to the pin 4 and the pin one of RS485 conv 13 by pin one 6 and pin one 4, drives absolute value encoder by these conv 13 output RS485 signals to 3,4 pins of absolute value encoder 12 and exports current altitude information signal to the pin 8,9 of transmitter micro controller system 11 highly by 1,2 pins.Height transmitter micro controller system 11 converts the signal that receives to bus signals, outputs in the fieldbus 40 by pin one 3.Control unit 20 and display unit 30 just can obtain the signal that needs from fieldbus 40.
Referring to Fig. 6, Fig. 6 is the workflow diagram of detecting unit 10, comprises program entry, system initialization, bus president, height detection and Gray code conversion.
Referring to Fig. 4, control unit 20, comprise first main control processor 21, relay control outlet 22, photoelectrical coupler 23 and first memory 24, described first main control processor 21 connects the height transmitter micro controller system 11 of described detecting unit 10 by described fieldbus 40, the output pin of first main control processor 21 connects described relay control outlet 22, input pin connects the mouth of described photoelectrical coupler 23, described first memory 24 is connected on first main control processor 21, the parameter that storage is set.
As an embodiment, control unit 20 is realized the control of hoisting crane altitude figure display instrument function.First main control processor 21 is selected AT89S52-24PI for use, and first main control processor 21 drives relay-operated controller 25 (ULN2803) by pin two 1-28, drives relay control outlet 22 (8 road relay control signal) output again, realizes the automatic guidance of driving.Photoelectrical coupler 23 adopts the coupling of 16 road photoelectricity, and its fault alarm of isolating input is sent into first main control processor 21 through isolating chip (16 TLP521), sends into fieldbus 40 behind data handing.First memory 24 adopts the non-loss memory device of serial (E2PROM (24C04)), sets with detected parameters to be kept in the first memory 24.
Referring to Fig. 7, Fig. 7 is the workflow diagram of control unit 20, comprising fault detection, fault handling and warning processing capacity.
Referring to Fig. 3, display unit 30, realize operation, the Presentation Function of crane hoisting height, described display unit 30 comprises second main control processor 31, display operation terminal 32 and second memory 33, described display operation terminal 32 comprises read-out 321 and touch keyboard 322, described second main control processor 31 connects described read-out 321 by serial driver, and be connected with described touch keyboard 322, described second memory 33 connects the pin of described second main control processor 31, the parameter that storage is set.
As an embodiment, second main control processor 31 adopts the AT89S52 model, second main control processor 31 drives read-out 321 by serial driver (74HC595), and read-out 321 adopts nearly 10 LED display here, realizes that parameters such as height, warning, fault show.The touch keyboard 322 of display operation terminal adopts 16 dustproof film matrix keyboards that touch, and directly links to each other with second main control processor 31 by flexible-cable.Second memory 33 adopts the non-loss memory device of serial (E2PROM (24C04)), and setup parameter is kept at wherein, also can not lose setup parameter even have a power failure.The data acquisition of display unit 30 links to each other with fieldbus 40 by isolating bus driver (TLP521-1).
Pin one 0 function of second main control processor 31 be output signal to fieldbus 40, pin one 1 function is to obtain signal from fieldbus 40.Pin two 8 is connected to the SDA of second memory 33, and pin one 6 is connected to the SCL of second memory 33, and pin one 7 is connected to the write-protect of second memory 33.3 serial driver of pin two 1,22,23 drivings by second main control processor 31 drive read-out 321 (LED digitron display screen).The pin two 4 to 27,32 to 35 of second main control processor 31 is connected to touch keyboard 322 (16 touch the film matrix keyboard) and realizes functions such as operation and parameter setting.
Referring to Fig. 8, Fig. 8 is the workflow diagram of display unit 30 of the present utility model, comprising functions such as parameter setting, keying processing and parameter demonstrations.
Referring to Fig. 5, Fig. 5 is the principle schematic of system wiring of the present utility model, the connection plan of each unit of lifting altitude display instrument described in the utility model has been described, concentrated expression the wiring relation of 32 at first main control processor 21, height transmitter micro controller system 11, absolute value encoder and display operation terminal.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of above embodiment.
Claims (7)
1, a kind of lifting altitude display instrument of lifting mechanism is characterized in that, comprising:
Detecting unit comprises height transmitter micro controller system and connected absolute value encoder, and described absolute value encoder connects the output shaft of the driving device of described lifting mechanism;
Control unit is connected with the height transmitter micro controller system of described detecting unit, handles the output signal of height transmitter micro controller system;
Display unit is connected and receives the signal of its output with described control unit, and described display unit is exported the lifting altitude of described lifting mechanism.
2, lifting altitude display instrument as claimed in claim 1 is characterized in that, described lifting altitude display instrument also comprises fieldbus, and detecting unit, control unit and display unit all connect described fieldbus by isolating bus driver.
3, lifting altitude display instrument as claimed in claim 2, it is characterized in that, described detecting unit also comprises conv, described height transmitter micro controller system connects described absolute value encoder by described conv, the absolute value encoder mouth connects the input end of height transmitter micro controller system, and the mouth of height transmitter micro controller system is exported the lifting altitude data-signal of described lifting mechanism to described fieldbus.
4, lifting altitude display instrument as claimed in claim 2, it is characterized in that, described control unit comprises first main control processor, relay control outlet, photoelectrical coupler and first memory, described first main control processor connects the height transmitter micro controller system of described detecting unit by described fieldbus, the output pin of first main control processor connects described relay control outlet, input pin connects the mouth of described photoelectrical coupler, described first memory is connected on first main control processor, the parameter that storage is set.
5, lifting altitude display instrument as claimed in claim 2, it is characterized in that, described display unit comprises second main control processor, display operation terminal and second memory, described display operation terminal comprises read-out and touch keyboard, described second main control processor connects described read-out by serial driver, and be connected with described touch keyboard, described second memory connects the pin of described second main control processor, the parameter that storage is set.
6, lifting altitude display instrument as claimed in claim 1 is characterized in that, described absolute value encoder connects the hoisting drum rotating shaft of described lifting mechanism.
As claim 4 or 5 described lifting altitude display instruments, it is characterized in that 7, described first memory or second memory are the non-loss memory device of serial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201509358U CN201250061Y (en) | 2008-07-17 | 2008-07-17 | Hoisting height display instrument of hoisting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201509358U CN201250061Y (en) | 2008-07-17 | 2008-07-17 | Hoisting height display instrument of hoisting mechanism |
Publications (1)
| Publication Number | Publication Date |
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| CN201250061Y true CN201250061Y (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201509358U Expired - Fee Related CN201250061Y (en) | 2008-07-17 | 2008-07-17 | Hoisting height display instrument of hoisting mechanism |
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| CN (1) | CN201250061Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923573A (en) * | 2012-11-09 | 2013-02-13 | 中钢集团武汉安全环保研究院有限公司 | On-line detecting device and method for descending brake distance of crane hoisting mechanism |
| CN109255265A (en) * | 2018-08-01 | 2019-01-22 | 武汉普利商用机器有限公司 | Self-recovery method and device when reading identity card information exception |
-
2008
- 2008-07-17 CN CNU2008201509358U patent/CN201250061Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923573A (en) * | 2012-11-09 | 2013-02-13 | 中钢集团武汉安全环保研究院有限公司 | On-line detecting device and method for descending brake distance of crane hoisting mechanism |
| CN109255265A (en) * | 2018-08-01 | 2019-01-22 | 武汉普利商用机器有限公司 | Self-recovery method and device when reading identity card information exception |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20160717 |